Patent Publication Number: US-10786713-B2

Title: Golf club having removable weight

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation-in-part of U.S. patent application Ser. No. 16/224,478, filed on Dec. 18, 2018, now U.S. Pat. No. 10,518,145, which is a continuation-in-part of U.S. patent application Ser. No. 16/043,052, filed on Jul. 23, 2018, now U.S. Pat. No. 10,376,756, which is a continuation of U.S. patent application Ser. No. 15/339,797, filed on Oct. 31, 2016, now U.S. Pat. No. 10,029,161, the disclosures of which are incorporated by reference in their entireties. 
    
    
     FIELD OF THE INVENTION 
     The invention relates to golf clubs, and more particularly, to golf club heads having a removable weight. 
     BACKGROUND OF THE INVENTION 
     The trend of lengthening golf courses to increase their difficulty has resulted in a high percentage of amateur golfers constantly searching for ways to achieve more distance from their golf shots. The golf industry has responded by providing golf clubs specifically designed with distance and accuracy in mind. The size of wood-type golf club heads has generally been increased while multi-material construction and reduced wall thicknesses have been included to provide more mass available for selective placement through the head. The discretionary mass placement has allowed the club to possess a higher moment of inertia (MOI), which translates to a greater ability to resist twisting during off-center ball impacts and less of a distance penalty for those off-center ball impacts. 
     Various methods are used to selectively locate mass throughout golf club heads, including thickening portions of the body casting itself or strategically adding a separate weight element during the manufacture of the club head. An example, shown in U.S. Pat. No. 7,186,190, discloses a golf club head comprising a number of moveable weights attached to the body of the club head. The club head includes a number of threaded ports into which the moveable weights are screwed. Though the mass characteristics of the golf club may be manipulated by rearranging the moveable weights, the cylindrical shape of the weights and the receiving features within the golf club body necessarily moves a significant portion of the mass toward the center of the club head, which may not maximize the peripheral weight of the club head or the MOI. 
     Alternative approaches for selectively locating mass in a club head utilize the incorporation of composite structures of multiple materials. These composite structures often utilize two, three, or more materials, including various metallic and non-metallic materials, that have different physical properties including different densities. An example of this type of multi-material head is shown in U.S. Pat. No. 5,720,674. The club head comprises an arcuate portion of high-density material bonded to a recess in the back-skirt. Because the different materials included in the club head must be coupled, for example by welding, swaging, or using bonding agents such as epoxy, they may be subject to delamination or corrosion over time. This component delamination or corrosion results in decreased performance in the golf club head and can lead to club head failure. 
     Though many methods of optimizing the mass properties of golf club heads exist, there remains a need in the art for a golf club head comprising at least a removable weight having secure attachment and a low-profile so that the weight does not protrude into the center of the club head and negatively affect the location of the center of gravity. 
     SUMMARY OF THE INVENTION 
     The present invention is directed to a golf club head having at least one weight receptacle and at least one movable or removable weight member. 
     One non-limiting embodiment of the present technology includes a golf club head including a weight member, including a club head body including a plurality of body members that combine to define a hollow body, wherein the body members include a face defining a ball-striking surface, a sole, a crown, and a skirt, wherein the sole extends aftward from a lower edge of the face, wherein the crown extends aftward from an upper edge of the face, and wherein the skirt extends between the sole and the crown around a perimeter of the body; a weight mount disposed on at least one of the body members, wherein the weight mount includes an aperture defined by an outer surface of the golf club head body, wherein the weight mount defines an undercut adjacent the aperture; and a weight member including a weight body, a spring clip, and a locking mechanism, wherein the weight body includes a first flange that is spaced from a second flange by a clip portion, wherein the weight body defines a bore that extends through the first flange and at least a portion of the clip portion, wherein the clip portion defines a plurality of apertures extending radially through the clip portion, wherein the spring clip is disposed on the clip portion; wherein the locking mechanism includes a locking member and a plurality of rollers, wherein each of the plurality of rollers are disposed in one of the plurality of apertures in the clip portion, and wherein each of the rollers abuts a cam surface of the locking member and an inner surface of the spring clip; wherein the cam surface of the locking member includes a plurality of detents and a plurality of ramps, wherein the cam surface of the locking member has an outer dimension that is different at different locations around the locking member from a minimum distance at a detent to a maximum dimension on a ramp, wherein the locking member is rotatably coupled to the weight body, wherein the spring clip is biased toward the center of the weight member, wherein in a first configuration of the weight member the lock member is oriented so that the plurality of rollers are aligned with the plurality of detents and the spring clip forcibly abuts the rollers, and wherein in a second configuration of the weight member the lock member is oriented so that the rollers forcibly abut the spring clip to force the spring clip outward and away from the clip portion of the weight body and into the undercut. 
     In an additional non-limiting embodiment of the present technology the golf club head includes a plurality of weight mounts. 
     In an additional non-limiting embodiment of the present technology the spring clip comprises a clip alignment feature, wherein the weight body comprises a body alignment feature, wherein the clip alignment feature engages the body alignment feature 
     In an additional non-limiting embodiment of the present technology the locking member includes a circumferential groove in an outer surface, and the weight body includes a circumferential groove in an inner surface formed by the bore, wherein a snap ring extends into the circumferential groove of the locking member and the circumferential groove of the weight body so that the locking member is rotatably coupled to the weight body in the bore. 
     In an additional non-limiting embodiment of the present technology the plurality of rollers are a plurality of balls. 
     In an additional non-limiting embodiment of the present technology the weight body includes at least one indicium, wherein the locking member includes at least one indicium, and wherein alignment of the at least one indicium of the weight body and the at least one indicium of the locking member corresponds to one of the first configuration of the weight member and the second configuration of the weight member. 
     In an additional non-limiting embodiment of the present technology the first flange of the weight body is annular, the second flange of the weight body is annular, and the clip portion of the weight body is annular. 
     In an additional non-limiting embodiment of the present technology the weight mount includes an outer portion that is tapered, wherein the first flange of the weight body is tapered, wherein the first flange abuts the tapered outer portion of the weight mount. 
     In an additional non-limiting embodiment of the present technology the weight mount includes an inner portion that is tapered, wherein an edge of the spring clip is tapered, wherein the tapered surface of the spring clip abuts the tapered inner portion of the weight mount. 
     An additional non-limiting embodiment of the present technology includes a flange gasket interposed between the first flange and an outer surface of the golf club head. 
     An additional non-limiting embodiment of the present technology includes a weight member for a golf club head, including a weight body including a first flange that is spaced from a second flange by a clip portion, wherein the weight body defines a bore that extends through the first flange and at least a portion of the clip portion, wherein the clip portion defines a plurality of apertures extending radially through the clip portion; a spring clip disposed on the clip portion; and a locking mechanism, wherein the locking mechanism includes a locking member and a plurality of rollers, wherein each of the plurality of rollers is disposed in one of the plurality of apertures in the clip portion, and wherein each of the rollers abuts a cam surface of the locking member and an inner surface of the spring clip; wherein the cam surface of the locking member includes a plurality of detents and a plurality of ramps, wherein the locking member is rotatably coupled to the weight body, wherein the cam surface of the locking member has an outer dimension that is different at different locations around the locking member from a minimum distance at a detent to a maximum dimension on a ramp, wherein the spring clip is biased toward the center of the weight member, wherein in a first configuration of the weight member the lock member is oriented so that the plurality of rollers are aligned with the plurality of detents and the spring clip forcibly abuts the rollers into the detents, and wherein in a second configuration of the weight member the lock member is oriented so that the rollers forcibly abut the spring clip to force the spring clip outward and away from the clip portion of the weight body. 
     In an additional non-limiting embodiment of the present technology the spring clip comprises a clip alignment feature, wherein the weight body comprises a body alignment feature, wherein the clip alignment feature engages the body alignment feature. 
     In an additional non-limiting embodiment of the present technology the locking member includes a circumferential groove in an outer surface and the weight body includes a circumferential groove in an inner surface formed by the bore, wherein a snap ring extends into the circumferential groove of the locking member and the circumferential groove of the weight body so that the locking member is rotatably coupled to the weight body in the bore. 
     In an additional non-limiting embodiment of the present technology the plurality of rollers is a plurality of balls. 
     In an additional non-limiting embodiment of the present technology the weight body includes at least one indicium, wherein the locking member includes at least one indicium, and wherein alignment of the at least one indicium of the weight body and the at least one indicium of the locking member corresponds to one of the first configuration and the second configuration. 
     In an additional non-limiting embodiment of the present technology the first flange of the weight body is annular, the second flange of the weight body is annular, and the clip portion of the weight body is annular. 
     In an additional non-limiting embodiment of the present technology the weight mount includes an outer portion that is tapered, wherein the first flange of the weight body is tapered, wherein the first flange abuts the tapered outer portion of the weight mount. 
     In an additional non-limiting embodiment of the present technology wherein the weight mount includes an inner portion that is tapered, wherein an edge of the spring clip is tapered, wherein the tapered surface of the spring clip abuts the tapered inner portion of the weight mount. 
     An additional non-limiting embodiment of the present technology includes a golf club head including a weight member, including a club head body including a plurality of body members that combine to define a hollow body, wherein the body members include a face defining a ball-striking surface, a sole, a crown, and a skirt, wherein the sole extends aftward from a lower edge of the face, wherein the crown extends aftward from an upper edge of the face, and wherein the skirt extends between the sole and the crown around a perimeter of the body; a weight mount disposed on at least one of the body members, wherein the weight mount includes an aperture defined by an outer surface of the golf club head body; and a weight member including a weight body, a spring clip, and a locking mechanism, wherein the weight body defines a bore; wherein the weight body defines a plurality of apertures extending radially from the bore; wherein the spring clip is surrounds at least a portion of the weight body; wherein the locking mechanism includes a locking member and a plurality of rollers, wherein each of the plurality of rollers is disposed in one of the plurality of apertures and wherein each of the rollers abuts a cam surface of the locking member and an inner surface of the spring clip; wherein the cam surface of the locking member includes a plurality ramps, wherein the cam surface of the locking member has an outer dimension that is different at different locations around the locking member, wherein the locking member is rotatably coupled to the weight body, wherein the spring clip is biased toward the center of the weight member, wherein in a first configuration of the weight member the lock member is oriented so that the plurality of rollers are aligned with a low point of the plurality of ramps, and wherein in a second configuration of the weight member the lock member is oriented so that the rollers forcibly abut the spring clip to force the spring clip outward and away from the clip portion of the weight body, preventing the weight member from dislodging from the weight mount. 
     In an additional non-limiting embodiment of the present technology the weight mount includes an outer portion that is tapered, wherein a portion of the weight body is tapered, wherein the tapered portion of the weight body abuts the tapered outer portion of the weight mount when said weight member is in the second configuration. 
     An additional non-limiting embodiment of the present technology includes a golf club head including a weight member comprising a club head body, a weight mount, and a weight member. The weight mount is disposed in the club head body, includes an aperture defined by an outer surface of the golf club head body, and defines an undercut adjacent the aperture. The weight member comprises a weight body, a locking mechanism, and a spring clip. The weight body includes a bore and a plurality of slides. The locking mechanism includes a plurality of lock tabs and a locking member, and each lock tab includes an abutment surface, an engagement surface, and a slide that slidably couples to at least one of the plurality of slides of the weight body. The spring clip circumscribes a portion of the lock tabs. The locking member is rotatably coupled to the weight body. The spring clip is biased toward the center of the weight member. In a first configuration of the weight member the lock tabs are positioned relative to the weight body so that an outer dimension of the lock tabs is less than an inner dimension of the aperture of the weight mount. In a second configuration of the weight member the locking member forcibly abuts the lock tabs and the lock tabs are positioned relative to the weight body so that the outer dimension of the lock tabs is greater than the inner dimension of the aperture of the weight mount, and the lock tabs are extended radially outward relative to a side wall of the weight body to extend into the undercut of the weight mount. 
     In an additional non-limiting embodiment of the present technology the golf club head includes a plurality of weight mounts. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a threaded shank, and the threaded shank threadedly engages the weight body. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a threaded shank, and the threaded shank threadedly engages the weight mount. 
     In an additional non-limiting embodiment of the present technology the weight member further comprises a snap ring coupled to a shank of the locking member so that at least a portion of the lock tabs and at least a portion of the weight body are interposed between the snap ring and a head of the locking member. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a tapered head, and the tapered head of the locking member forcibly abuts a tapered abutment portion of the lock tabs. 
     In an additional non-limiting embodiment of the present technology the weight mount comprises anti-rotation features that interlock with anti-rotation features of the weight body and prevent relative rotation between the weight mount and the weight body. 
     In an additional non-limiting embodiment of the present technology the plurality of slides of the weight body are a plurality of dovetail rails, and wherein the slide of each of the lock tabs is a dovetail channel. 
     An additional non-limiting embodiment of the present technology includes a golf club head including a weight member comprising a club head body, an elongate weight mount, and a weight member. The elongate weight mount is disposed in the club head body, includes an elongate opening defined by an outer surface of the golf club head body, and defines parallel undercuts adjacent the opening and at least one rail. The weight member comprises a weight body, a locking mechanism, and a spring clip. The weight body includes a bore, a plurality of slides, and at least one notch that receives the at least one rail. The locking mechanism includes a plurality of lock tabs and a locking member, and each lock tab includes an abutment surface, an engagement surface, and a slide that slidably couples to at least one of the plurality of slides of the weight body. The spring clip circumscribes a portion of the lock tabs. The locking member is rotatably coupled to the weight body. The spring clip is biased toward the center of the weight member. In a first configuration of the weight member the lock tabs are positioned relative to the weight body so that an outer dimension of the lock tabs is less than an a minimum inner dimension of the opening of the elongate weight mount. In a second configuration of the weight member the locking member forcibly abuts the lock tabs and the lock tabs are positioned relative to the weight body so that the outer dimension of the lock tabs is greater than the minimum inner dimension of the aperture of the elongate weight mount, and the lock tabs are extended radially outward relative to a side wall of the weight body to extend into the undercuts of the weight mount. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a threaded shank, and the threaded shank threadedly engages the weight body. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a tapered head, and the tapered head of the locking member forcibly abuts a tapered abutment portion of the lock tabs. 
     In an additional non-limiting embodiment of the present technology the weight mount comprises parallel rails, and the weight body comprises parallel notches that receive the parallel rails. 
     In an additional non-limiting embodiment of the present technology the plurality of slides of the weight body are a plurality of dovetail rails, and the slide of each of the lock tabs is a dovetail channel. 
     An additional non-limiting embodiment of the present technology includes a golf club head including a weight member comprising a club head body, a weight mount, and a weight member. The weight mount is disposed in the club head body, includes an aperture defined by an outer surface of the golf club head body, and defines an undercut adjacent the aperture. The weight member comprises a weight body, a locking mechanism, and a spring clip. The weight body includes a bore, a plurality of slides, and at least one alignment post. The locking mechanism includes a plurality of lock tabs, a locking member, and a tapered nut, and each lock tab includes an abutment surface, an engagement surface, and a slide that slidably couples to at least one of the plurality of slides of the weight body. The tapered nut defines a bore and a groove. The spring clip circumscribes a portion of the lock tabs. The locking member extends through the bore of the weight body and is rotatably coupled to the tapered nut. The groove of the tapered nut receives at least a portion of the at least one alignment post and prevents relative rotation between the weight body and the tapered nut. The spring clip is biased toward the center of the weight member. In a first configuration of the weight member the lock tabs are positioned relative to the weight body so that an outer dimension of the lock tabs is less than an inner dimension of the aperture of the weight mount. In a second configuration of the weight member the tapered nut forcibly abuts the lock tabs and the lock tabs are positioned relative to the weight body so that the outer dimension of the lock tabs is greater than the inner dimension of the aperture of the weight mount, and the lock tabs are extended radially outward relative to a side wall of the weight body to extend into the undercut of the weight mount. 
     In an additional non-limiting embodiment of the present technology the golf club head includes a plurality of weight mounts. 
     In an additional non-limiting embodiment of the present technology the locking member comprises a threaded shank, and the threaded shank threadedly engages the tapered nut. 
     In an additional non-limiting embodiment of the present technology the weight member further comprises a snap ring coupled to a shank of the locking member so that at least a portion of the lock tabs, at least a portion of the weight body, and at least a portion of the tapered nut are interposed between the snap ring and a head of the locking member. 
     In an additional non-limiting embodiment of the present technology the tapered nut comprises a tapered surface, and the tapered surface of the tapered nut forcibly abuts a tapered abutment portion of the lock tabs. 
     In an additional non-limiting embodiment of the present technology the weight mount comprises anti-rotation features that interlock with anti-rotation features of the weight body and prevent relative rotation between the weight mount and the weight body. 
     In an additional non-limiting embodiment of the present technology the plurality of slides of the weight body are a plurality of dovetail rails, and the slide of each of the lock tabs is a dovetail channel. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a bottom view of a golf club head including a weight member in accordance with the present invention; 
         FIG. 2  is a perspective view of a portion of a golf club head of  FIG. 1 ; 
         FIG. 3  is a perspective view of the weight member included in the golf club head of  FIG. 1 ; 
         FIG. 4  is a front view of the weight member that may be included in the golf club head of  FIG. 1 ; 
         FIG. 5  is a side view of the weight member of  FIG. 4 ; 
         FIG. 6  is a bottom view of a golf club including another weight member in accordance with the present invention; 
         FIG. 7  is a bottom view of a portion of the golf club head of  FIG. 6 ; 
         FIG. 8  is a partial cross-section of the golf club head of  FIG. 6 , as shown by line  8 - 8 ; 
         FIG. 9  is a perspective view showing a partial cross-section of a portion of the golf club head of  FIG. 6 ; 
         FIG. 10  is a perspective view of a portion of the weight member included in the golf club head of  FIG. 6 ; 
         FIG. 11  is a perspective view of a portion of the weight member included in the golf club head of  FIG. 6 ; 
         FIG. 12  is a bottom view of a golf club including another weight in accordance with the present invention; 
         FIG. 13  is a perspective view of a portion of the golf club head of  FIG. 12 ; 
         FIG. 14  is a bottom view of a portion of the golf club head of  FIG. 12 , illustrating a weight member in an unlocked orientation; 
         FIG. 15  is a bottom view of a portion of the golf club head of  FIG. 12 , illustrating a weight member in a locked orientation; 
         FIG. 16  is a bottom view of the weight member included in the golf club head of  FIG. 12 ; 
         FIG. 17  is a side view of the weight member included in the golf club head of  FIG. 12 ; 
         FIG. 18  is a cross-sectional view of the weight track of  FIG. 12 , taken along line  18 - 18 . 
         FIG. 19  is a perspective view of an alternative embodiment of the weight of  FIG. 17 ; 
         FIG. 20  is a perspective view of another alternative embodiment of the weight of  FIG. 17 ; 
         FIG. 21  is a perspective view of another alternative embodiment of the weight of  FIG. 17 ; 
         FIG. 22  is a perspective view of another alternative embodiment of the weight of  FIG. 17 ; 
         FIG. 23  is a bottom view of a golf club head including another weight member in accordance with the present invention; 
         FIG. 24  is a partial cross-section view of the weight receptacle and weight member shown in  FIG. 23 ; 
         FIG. 25  is a bottom view of an alternative embodiment of the weight receptacle of  FIG. 23 ; 
         FIG. 26  is a bottom view of an alternative embodiment of the weight receptacle of  FIG. 23 ; 
         FIG. 27  is a bottom view of another embodiment of a golf club head including a weight member in accordance with the present invention; 
         FIG. 28  is a perspective view of the weight member included in the golf club head of  FIG. 27 ; 
         FIG. 29  is a side view of the weight member of  FIG. 28 ; 
         FIG. 30  is a bottom view of the weight member of  FIG. 28 ; 
         FIG. 31  is an exploded view of the weight member of  FIG. 28 ; 
         FIG. 32  is a side view of a portion of the weight member of  FIG. 28 ; 
         FIG. 33  is a top view of the portion shown in  FIG. 32 ; 
         FIG. 34  is a side view of another portion of the weight member of  FIG. 28 ; 
         FIG. 35  is a top view of the portion shown in  FIG. 34 ; 
         FIG. 36  is a cross-sectional view of the weight member of  FIG. 28  in a first configuration, taken along line  36 - 36  shown in  FIG. 29 ; 
         FIG. 37  is another cross-sectional view of the weight member of  FIG. 28  in a second configuration, generally corresponding to line  36 - 36  of  FIG. 29 ; 
         FIG. 38  is a partial cross-sectional view of a golf club head including another embodiment of the weight member of the present invention in a portion of a golf club head; 
         FIG. 39  is a partial cross-sectional view of a golf club head including another embodiment of the weight member of the present invention in a portion of a golf club head; 
         FIG. 40  is a perspective view of another weight member in accordance with the present invention in a first configuration; 
         FIG. 41  is a perspective view of the weight member of  FIG. 40  in a second configuration; 
         FIG. 42  is a top view of a portion of the weight member of  FIG. 40  in the first configuration; 
         FIG. 43  is a top view of the portion of the weight member of  FIG. 41  in the second configuration; 
         FIG. 44  is a top view of a portion of an alternative construction of the weight member of  FIG. 40  in the first configuration; 
         FIG. 45  is a top view of the portion of the weight member of  FIG. 41  in the second configuration; 
         FIG. 46  is a top view of a portion of another alternative construction of the weight member of  FIG. 40  in the first configuration; 
         FIG. 47  is a top view of the portion of the weight member of  FIG. 41  in the second configuration; 
         FIG. 48  is an exploded view of another embodiment of a weight member accordance with the present invention; 
         FIG. 49  is a cross-sectional view of the weight member of  FIG. 48  in an unlocked configuration; 
         FIG. 50  is a cross-sectional view of the weight member of  FIG. 48  in a locked configuration; 
         FIG. 51  is an exploded view of another embodiment of a weight member accordance with the present invention; 
         FIG. 52  is a cross-sectional view of the weight member of  FIG. 51  in an unlocked configuration; 
         FIG. 53  is a cross-sectional view of the weight member of  FIG. 51  in a locked configuration; 
         FIG. 54  is a cross-sectional view of another embodiment of a weight member in accordance with the present invention; 
         FIG. 55  is an exploded view of another embodiment of a weight member accordance with the present invention; 
         FIG. 56  is a cross-sectional view of the weight member of  FIG. 55  in an unlocked configuration; 
         FIG. 57  is a cross-sectional view of the weight member of  FIG. 55  in a locked configuration; 
         FIG. 58  is an exploded view of another embodiment of a weight member accordance with the present invention; 
         FIG. 59  is a cross-sectional view of the weight member of  FIG. 58  in an unlocked configuration; 
         FIG. 60  is a cross-sectional view of the weight member of  FIG. 58  in a locked configuration; 
         FIG. 61  is an exploded view of another embodiment of a weight member accordance with the present invention; 
         FIG. 62  is a cross-sectional view of the weight member of  FIG. 61  in an unlocked configuration; and 
         FIG. 63  is a cross-sectional view of the weight member of  FIG. 61  in a locked configuration. 
     
    
    
     DETAILED DESCRIPTION 
     Other than in the operating examples, or unless otherwise expressly specified, all of the numerical ranges, amounts, values and percentages such as those for amounts of materials, moments of inertias, center of gravity locations, loft and draft angles, and others in the following portion of the specification may be read as if prefaced by the word “about” even though the term “about” may not expressly appear with the value, amount, or range. Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. 
     Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements. Furthermore, when numerical ranges of varying scope are set forth herein, it is contemplated that any combination of these values inclusive of the recited values may be used. 
     Many weight structures utilize attachment mechanisms that primarily utilize a force in the direction of an axis that is orthogonal to the outer contour of the golf club head for attaching weight member to the golf club head. According to the present invention, weight members that primarily utilize forces that are generally directed parallel or tangential to the outer contour of the golf club head and lateral to the weight member are described. Utilizing attachment configurations that primarily interact with the surrounding structure of the golf club head in parallel or tangentially to the outer contour of the golf club head reduces the amount of structure that extends toward the interior of the golf club head that would otherwise be required to retain the weight member. 
     In an aspect of the present invention, an embodiment of a weight member  10 , having a low profile, includes a simple clip-in type attachment that does not require the use of a threaded fastener to couple the weight member  10  to the golf club head  1 . Golf club head  1  has a hollow bodied construction that includes a face, a sole  4 , a crown, a skirt, and a hosel that combine to define the hollow interior. As is well known in the art, the body may be formed by numerous methods and those methods may be used alone or in combination, and the club head body may include cast, stamped and/or forged components that are combined together. In an example, the head body may include a cast component including the sole, crown, skirt and hosel and a stamped face component that is welded to the cast component. In another example, the head body may include forged sole, crown, hosel, and face components that are welded together. 
     The face defines a ball-striking surface. The sole  4  extends aftward from a lower edge of the face. The crown extends from an upper edge of the face and the skirt extends between the sole  4  and crown and around the perimeter of the body. Golf club head  1  also includes a plurality of weight attachment structures, such as weight mounts  2 . Weight member  10  includes a body  12 , and three spring features. The spring features include two side wall spring features that are flexible arms  14  and a locking spring feature formed by a flexible locking arm  16  on another surface. Each flexible arm  14  is defined by an elongate aperture  15  that extends through the thickness of body  12  and that intersects the side wall of body  12 . 
     The side wall spring features and locking arm  16  combine to prevent relative movement between the weight cartridge and the golf club head in three orthogonal axes, e.g., the X, Y and Z axes, so that the weight member is fully constrained from translation when the weight member is installed in a weight receptacle. In particular, the dimensions of the weight mount  2  are selected so that the portions abutting the flexible arms are narrower than the free width of the weight member at the flexible arms. As a result of those dimensions, the flexible arms  14  and locking arm  16  are at least partially flexed laterally and act upon the surrounding structure of the weight mount  2  and are compressed to exert lateral force on the surrounding structure to prevent translation of the weight member  10  in every direction, i.e., in three orthogonal axes. 
     The weight member  10  also includes a locking mechanism that selectively locks the weight member  10  into the golf club head  1  at one of the weight mount  2 . The locking arm  16  may include a locking tooth  18  that prevents the weight member  10  from becoming dislodged and disengaging from the golf club head  1  during impact. In the illustrated embodiment, the locking arm  16  interacts with a locking feature on the weight mount  2 , such as a bridge member  3  that forms an undercut portion in weight mount  2 . Bridge member  3  extends across a portion of the weight member  10  when the weight member  10  is inserted into a weight mount  2 . Locking tooth  18  includes a tapered surface  20  that abuts and slides past bridge member  3  when the weight member  10  is inserted into a weight mount  2 . That contact forces locking arm  16  to flex so that the locking tooth  18  slips past bridge member  3 , which allows the weight member  10  to be fully inserted into the weight mount  2 . Bridge member  3  may also include a tapered abutment surface that gradually increases contact force between tooth  18  and bridge member  3 . The weight member  10  and weight mount  2  are dimensioned so that when the weight member  10  is fully inserted, the tapered surface  20  of locking tooth  18  passes the contacting portion of bridge member  3  and a ledge  22  of locking tooth  18  engages a portion of bridge member  3 . The engagement of the ledge  22  and bridge member  3  prevents the weight member  10  from disengaging the weight mount  2 , but the weight member  10  may be removed by displacing locking tooth  18  relative to bridge member  3  so that the locking tooth  18  is able to slip past bridge member  3  to allow weight member  10  to be retracted from weight mount  2 . It should be appreciated that the height of flexible arms  14  may differ from the overall thickness of the weight member  10 . For example, an extension portion, shown by dashed portion  24 , may be included to increase the volume of weight member  10 . Additionally, ledge  22  may be replaced with a second tapered surface that allows the weight member  10  to be removed without separately flexing locking arm  16  to disengage the locking tooth  18  from bridge member  3 . The taper of the second tapered surface is preferably steeper than tapered surface  20 . 
     Weight member  10  may be constructed from a single material or it may have a multi-material construction. For example, as shown in  FIG. 4 , portions of the weight body  12 , shown by dashed portions  26 , may include recesses or may be constructed of a material having a different specific gravity than the remainder of the weight body to create an insert that is heavier or lighter relative to the weight body. In embodiments having a heavy or light insert, the insert may be joined with the weight body by many different methods, including mechanically fixing the insert to the weight body by threaded engagement, and/or fasteners. Alternatively, the materials may be coupled using metallurgical joining techniques, such as welding, swaging, forging the materials together, or co-casting. 
     Referring to  FIGS. 6-11 , a golf club head  30  includes another weight system  32  that provides adjustability of the center of gravity of the golf club head and that is disposed on a body member. The weight system  32  includes weight member  34  and a weight mount in the form of slot  31  extending through at least a portion of the thickness of the body member. Weight member  34  is assembled from a weight body  36 , a spring clip  38 , a locking member  40 , and an optional weight slug  42 . Weight member  34  is installed in slot  31 , slides along edges of slot  31 , and is configured to naturally seat in detent recesses  44  that are included in the edges of slot  31 . Preferably, weight member  34  provides an audible and/or tactile “click” when it seats in each of the detent recesses  44  included in slot  31 . 
     Weight body  36  provides the primary source for mass in weight member  34 , while providing a frame for supporting spring clip  38 . In particular, the weight body  36  includes an outer portion  46  that resides outside of slot  31  when weight member  34  is installed, a clip portion  48  that receives spring clip  38  and resides in slot  31  when weight member  34  is installed, and an inner portion  50  that is sized to extend through slot  31 . In the illustrated embodiment, outer portion  46  is a generally cylindrical portion of the weight body  36 . Preferably, the outer portion has an outer dimension that prevents it from being inserted into slot  31 , so that it limits the insertion of the weight body  36  into slot  31 . It should be appreciated that the outer portion  46  need not be cylindrical, and the shape and size of the outer portion  46  may be altered to alter the overall mass of the weight body  36  and weight member  34 . Outer portion  46  also includes a locking member mount  52 , such as a bore that receives locking member  40  and that extends into clip portion  48 . For example, locking member mount  52  may be a threaded bore that threads with a locking member  40  that includes a threaded portion. As a further alternative, outer portion  46  may have a multi-material construction so that the mass of weight body  36  may be altered, such as by replacing a portion of the outer portion  46  indicated by dashed area  57  with a component constructed of a material having a different specific gravity than the material of weight body  36 . 
     The clip portion  48  and inner portion  50  extend from outer portion  46 . Clip portion  48  is interposed between outer portion  46  and inner portion  50  of weight body  36  and provides a mounting structure for spring clip  38  on weight body  36 . In particular, clip portion  48  includes slots  54  on opposite sides of the weight body  36 . Spring clip  38  is disposed on weight body in clip portion  48  so that a portion spring clip  38  resides in slots  54 . The configuration of slots  54  results in outer portion  46  and inner portion  50  creating shoulders that straddle spring clip  38  and retain it in the direction of a longitudinal axis of weight body  36 . Slots  54  extend through the side wall of the clip portion  48  so that a portion of the spring clip  38  intersects the bore that forms the locking member mount  52  when spring clip  38  is installed on weight body  36 . 
     Inner portion  50  extends away from outer portion  46  and clip portion  48  and is sized so that it may extend through slot  31 . In the illustrated embodiment, inner portion  50  is generally an annular cylindrical body that has an outer diameter that is smaller than the width of the opening of slot  31 . It should be appreciated that inner portion  50  may include parts that have an outer dimension that is greater than the opening of slot  31 , as long as some part of inner portion  50  has an outer dimension that allows it to be inserted into a portion of slot  31 . It should also be appreciated that inner portion  50  need not be cylindrical, but may alternatively have a polygonal shape, such as a square or rectangle, or another curved shape. Inner portion  50  may also include a mounting feature for weight slug  42 , which may be used to increase the mass of weight member  34 . For example, inner portion  50  may include a mount  56  that allows a selected weight slug  42  to be coupled to weight body  36 . Mount  56  may be a threaded bore and weight slug  42  may be a threaded weight member that is selected from a plurality of weight slugs  42  having different masses and threaded into mount  56 . 
     Spring clip  38  generally includes two arms  58  that are able to flex toward and away from each other. The arms  58  are coupled by a flexure  60  and terminate at terminal ends  61  that are spaced from each other to define a gap  62 . Spring clip  38  also includes locking tabs  64  that extend inward from arms  58 . Locking tabs  64  extend through the side wall of clip portion  48  so that they intersect a portion of the bore that forms locking member mount  52 . 
     Each of arms  58  defines an outer channel  66 , that is at least partially defined by an outer engagement surface  67 , and that receives a portion of the side wall of slot  31 . A detent projection  68  is disposed in each outer channel  66  that is shaped and sized to complement the shape and size of the detent recesses  44  included in slot  31 . The detent projection  68  is a portion of outer engagement surface  67  that locally extends outward. Spring clip  38  and slot  31  are shaped so that spring clip  38  is biased radially outward when it is installed in slot  31 . As a result, spring clip  38  remains in contact with the edges of slot  31  and creates the force that causes the detent projections  68  to click into the detent recesses  44 . 
     The sizes of the channels  66  and detent projections  68  are selected so that there is minimal clearance between those features and the complementary portions of the slot  31 . That minimal clearance allows the weight member  34  to move along slot  31  while preventing additional movement relative to the walls of slot  31 . As a further alternative, the edges of slot  31 , including detent recesses  44  may be beveled, and the detent projections  68  may be tapered so that when the projections engage the recesses, the weight member  34  is drawn further into slot  31  and against the wall of golf club head  30 . Spring clip  38  is constructed so that arms  58  may be spread apart from one another so that clip portion  48  of weight body  36  may be inserted through gap  62  and locking tabs  64  located in slots  54 . 
     Locking member  40  is included to selectively provide support to spring clip  38  to limit inward motion of the locking tabs  64  when the weight member  34  is positioned at a detent location. Locking member  40  is a tapered screw that includes a threaded portion  70  and a tapered tip portion  72 . Threaded portion  70  couples with the threaded bore included in outer portion  46  of weight body  36  and allows a user to rotate the locking member relative to the weight body to advance and retract locking member  40  relative to weight body  36 . The tapered tip portion  72  extends into clip portion  48  of weight body  36  and is configured to selectively abut an inner surface of locking tabs  64 , thereby preventing arms  58  of spring clip  38  from flexing inward toward each other when the weight member  34  is located at a detent. Locking member  40  may also be used to increase the force between the spring clip  38  and the walls of slot  31  by advancing the locking member  40  further into weight body  36  after contact is established between locking tabs  64  and the tapered tip portion  72 . Preferably, the locking member  40  is dimensioned so that it requires between ¼ and ½ of a turn of the locking member to disengage the spring clip  38  enough to allow the weight member  34  to slide along slot  31 . 
     In general, the weight member  34  is slid in slot  31  by a user grasping outer portion  46  of weight body  36  and sliding the weight member  34 . However, because spring clip  38  is configured to slide against the walls of slot  31  the spring clip  38  may shift in clip portion  48  relative to weight body  36 . That shift may cause the spring clip  38  to interact with the side walls of clip portion  48  and locking member  40  which can cause the arms  58  of spring clip  38  to be pushed outward, or spring clip  38  to twist relative to slot  31 , thereby increasing the friction between the spring clip  38  and the slot wall and further hindering the ability to slide the weight member in slot  31 . Accordingly, features that prevent the relative motion between the spring clip  38  and the other components, and/or features that prevent the arms  58  of spring clip  38  from spreading due to the relative motion are included in the construction of weight member  34 . For example, spring clip  38  may include a spacer  74  that is incorporated into flexure  60  that limits both the space between spring clip  38  and clip portion  48  of weight body  36  and the relative motion between the two components. Additionally, spring clip  38  may be shaped to limit a gap  76  between clip portion  48  and the terminal ends  61  of arms  58 , and the surface of clip portion  48  closest to terminal ends  61  may include a concavity  78  so that contact between concavity  78  and terminal ends  61  draws arms  58  together. Still further, the width of locking tabs  64  may be selected to closely clear the width of the portions of slots  54  that receive tabs  64  so that the amount of clearance between the locking tabs  64  and slots  54  dictates the range of motion of the spring clip  38  relative to the weight body  36 . 
     In general, slot  31  is only required to be an elongate opening in a wall of the golf club head that includes detent features to interact with weight member  34 . It is generally desirable to close the slot so that the interior of the golf club head is not exposed, so a slot cover may be installed to close the interior volume of the golf club head. The cover may be a thin-walled trough or tray that may be glued inside the golf club head to cover the slot and to seal the inner cavity of the golf club head from air, water or other debris. 
     In another embodiment, shown in  FIGS. 12-18 , a golf club head  90  includes a weight member  92  that utilizes spring features and a cam shape to lock the weight member  92  into a desired location in a weight mount that is formed by a shallow track  94 . The weight member  92  may be rotated in the track  94  between a first, unlocked orientation, shown in  FIG. 14 , in which a side wall  93  of the weight member  92  is spaced from the side wall of the track  94 , and a second, locked orientation, shown in  FIG. 15 . When the weight member  92  is in the locked orientation, the cam shape results in the side wall  93  of the weight member  92  abutting the side wall  95  of the track  94  and creating an outward, lateral force between track  94  and weight member  92 . 
     Weight member  92  is generally a monolithic weight body that is shaped so that it functions as a cam in track  94 , and includes an outer surface  102 , an inner surface  104 , and side wall  93  extends between outer surface  102  and inner surface  104 . In particular, the side wall  93  of weight member  92  is curved and non-circular so that the outer dimension varies with the angular orientation of the weight member  92 . In an example, weight member  92  has an oculiform shape, i.e., is shaped like an eye, so that the overall outer dimension taken through a centroid of the weight member varies between a minimum overall outer dimension D 1  of 28.5 mm and a maximum overall outer dimension D 2  of 30.0 mm. The side wall  93  of the weight member  92  is beveled at an angle in a range of 20° to 40°, and more preferably at an angle of about 30° and the weight member  92  has a thickness of about 4.8 mm. Weight member  92  also includes slots  96  that are generally semi-circular elongate apertures spaced from the side wall  93  so that the side wall  93  forms a spring feature. Preferably, the slot has a width of between about 1.5 mm and about 3.0 mm, and is spaced from the side wall  93  by a distance of about 1.5 mm at outer surface  102  of weight member  92 . 
     Track  94  is generally formed by angled, or beveled, side walls  95  that form undercuts on the sides of the weight mount. The side walls  95  of the track  94 , which are preferably parallel to the side wall  93  of weight member  92 , are beveled at an angle about equal to the angle of the side wall of the weight member, in particular at an angle of about 30° relative to a bottom wall support surface  100  of track  94 . The contact between the beveled side walls during rotation of the weight member  92  relative to track  94  causes weight member  92  to be drawn into the track  94  so that inner surface  104  is forced against support surface  100  of track. The outermost edges of track  94  include ledges  98  that form overhanging shoulders that are spaced from support surface  100  of track  94  by a distance that is greater than the thickness of weight member  92  to provide a gap so that weight member  92  may slide in track  94 . Preferably, the distance is greater than the thickness of weight member  92  by about 0.01 inch to about 0.05 inch. The width of the track is selected to allow both locking and sliding of the weight member  92 . In particular, the width of the track  94  at each elevation above the support surface  100  is selected to be between a minimum and a maximum outer dimension of the weight member at each corresponding elevation from support surface  100 . Additionally, support surface  100  has a value DLock that is between the minimum overall outer dimension D 1  and the maximum overall outer dimension D 2  of inner surface  104  of weight member  92  so that the weight member may be locked in place by rotation and cam action. 
     A tool engagement feature  106  is included in the body of weight member  92  for locking weight member  92  in track. In particular, tool engagement feature  106  is a feature that receives a portion of a tool, such as a screw driver or torque wrench, so that the tool may be used to rotate weight member  92  in track  94 . 
     Alternative embodiments of a weight member utilizing a cam shape to lock the weight member in place in a shallow track are illustrated in  FIGS. 19-22 , all of which may have a generally oculiform shape. Referring to  FIG. 19 , a weight member  110  is similar to the weight member of  FIGS. 12-17 , but does not include the spring features formed by slots. Weight member  110  generally includes an outer surface  112 , an inner surface  114 , a side wall  116 , and a tool engagement feature  118 . Weight member  110  is shaped to cam against walls of a weight track having beveled side walls, such as weight track  94 . The side wall  116  of weight member  110  is beveled to match the side walls of a complementary track and the weight member  110  locks in the track in the same manner as weight member  92  described above. 
     Referring to  FIG. 20 , a weight member  120  including a square side wall  122  will be described. Weight member  120  includes side wall  122  that extends between an outer surface  124  and an inner surface  126  and is generally square in relation to those surfaces, i.e., generally extends from those surfaces at a 90° angle. The side wall of the weight member may be square or beveled. Generally, a square side wall provides only lateral locking force, while a beveled side wall provides both vertical and lateral forces to restrict motion of the weight member relative to the track. As a result, the depth of the track may be selected to prevent relative motion of the weight member relative to the track in a direction orthogonal to the cam force especially for weights having square side walls. 
     Weight member  120  also includes optional spring features to further lock the weight member into place in the locked position of the cam motion. In particular, slots  128  extend through the body of weight member  120  between outer surface  124  and inner surface  126  near side wall  122 . The proximity of slots  128  to side wall  122  results in a portion of the side wall  122  functioning as a spring. Similar to previous embodiments, weight member  120  includes a tool engagement feature  130 . As described above, the spring features may be used to increase the cam force between the weight member and the track if needed. However, in some embodiments, that additional spring force is not required, and a weight member  132 , shown in  FIG. 21 , has a construction identical to weight member  120  without the slots forming the spring features, and because of the otherwise identical construction it will not be described further in detail. 
     In another embodiment, a weight member  140  includes an alternative construction for spring features and is illustrated in  FIG. 22 . Weight member  140  includes an outer surface  142 , an inner surface  144 , a side wall  146  and a tool engagement feature  148 . The construction of weight member  140  is similar to the construction of weight member  120  with an alternative spring feature. In particular, weight member  140  includes slots  150  that intersect side wall  146 , so that side wall  146  is discontinuous and so that portions of the body of weight member  140  form cantilevered arms  152  that are configured to flex and to provide spring features. All other aspects of the construction of weight member  140  are similar to those described above and will not be further described. 
     In another embodiment, shown in  FIG. 23 , a golf club head  160  includes a weight member  162  that is captured by a spring clamp  164  that forms a locking portion of a weight receptacle. Golf club head  160  generally is a hollow body defined by a face  166 , a sole  168 , a crown, and a skirt  170  that extends between the crown and sole  168 , and is preferably manufactured by standard methods. The golf club head  160  includes at least one receptacle that accepts and retains the weight member  162 , and preferably includes a plurality of weight receptacles. 
     The spring clamp  164  is configured to be in a naturally clamped configuration, which may be described as an “always-on” configuration. By activating the spring clamp  164  with a tool, the clamp opens and releases the captured weight member  162 . A portion of the spring clamp  164  is fixed to a portion of the golf club head  160  and another portion of the spring clamp  164  forms a free end. The spring clamp  164  is preferably integrated into the construction of the golf club head  160 , such as by casting the spring clamp  164  into the construction of the body. Alternatively, the spring clamp  164  may be constructed as a separate component and fixed on a portion of the golf club head body, such as by welding or mechanical fasteners. 
     The spring clamp  164  is affixed at the opening of a receptacle built into the golf club head  160  to form the locking portion of the weight receptacle. Spring clamp  164  is generally formed by at least one flexible arm  171  that includes a fixed end  172  and a free end  174 . In the illustrated embodiment, the fixed end  172  is fixedly coupled to a portion of sole  168  and at least one free end  174  extends cantilevered from fixed end  172 . Spring clamp  164  is configured as a C-clamp with a spring integrated into the construction of the flexible arm  171  to keep the clamp “on,” or closed shut, but it should be appreciated that a separate spring may be incorporated into the spring clamp, such as by incorporating a torsion spring. 
     A tool  176  is used to open the clamp to permit weight member  162  to be installed in, or removed from, the receptacle. In the illustrated embodiment, tool  176  is threaded into a threaded bore  178  included at a portion of spring clamp  164  near free end  174  of flexible arm  171 . An end of tool  176  extends out of threaded bore  178  and abuts free end  174  so that threading tool  176  further into the threaded bore  178  forces the flexible arm to flex outward to open the spring clamp. Unthreading and removing tool  176  from the threaded bore  178  allows the flexible arm  171  to return to its natural position, thereby returning the spring clamp to the natural clamped configuration. Although a threaded tool is illustrated, the tool may be used to open the clamp by different mechanisms. For example, the tool may be configured to act as a lever, push-action, pinch, cam, etc. Additionally, it should be appreciated that more than one arm of the spring clamp may be constructed to be flexible during use. For example, both arms of the illustrated spring clamp  164  may flex when tool  176  is threaded into the threaded bore  178 . 
     Referring to  FIGS. 25 and 26 , the spring clamp may have many alternative shapes that provide different advantages. For example, a spring clamp may have a polygonal shape to complement a polygonal weight member and that shape prevents rotation of the weight member in the spring clamp. Referring first to  FIG. 25 , a spring clamp  180  includes a fixed portion  182  and flexible arms  184  that terminate at free ends  186 . Spring clamp  180  has a generally triangular shape that receives a triangular weight member. In another embodiment, shown in  FIG. 26 , a spring clamp  190  includes a fixed portion  192 , and flexible arms  194  that terminate at free ends  196 . Spring clamp  190  has a generally rhomboid shape that receives a complementary weight member. It should be appreciated that the spring clamp may have many alternative shapes to complement the shape of an accompanying weight member. 
     Referring now to  FIGS. 27-37 , a golf club head  200  includes another weight system that provides adjustability of the center of gravity of the golf club head. Adjustment of the location of the center of gravity may be accomplished using a plurality of weight members  204  having different masses interchangeably disposed in a plurality of weight mounts. Weight member  204  is assembled from a weight body  206 , a spring clip  208 , and a locking mechanism for radially extending at least portions of the spring clip  208 . Similar to previous embodiments, the rotation of a locking member forces a spring clip outward to lock the weight member in a location. The locking mechanism includes a locking member  210  and a plurality of rollers  228 . Weight member  204  is installed in mount  201  by placing the weight member in an undercut recess that forms the mount  201  and using the locking mechanism to extend the spring clip  208  radially outward so that it is inserted into the undercut  214 . 
     Weight body  206  provides the primary source for mass in weight member  204 , while providing a frame for supporting spring clip  208  and the mechanism configured to radially extend at least portions of the spring clip  208 . In particular, the weight body  206  is a generally tubular body that defines a central bore that forms a locking member mount  215  and that includes an annular first flange  216  that is spaced from an annular second flange  220  by a clip portion  218 . The clip portion  218  is annular and has a radially outward surface  221  that is recessed relative to the radially outward edges of the first flange  216  and the second flange  220  to form an annular clip recess  219 , as shown in  FIGS. 31 and 32 . Additionally, a clip alignment feature  222  is disposed in the clip recess  219 , and in the present embodiment the clip alignment feature  222  is a rib that interacts with the spring clip  208  to prevent rotation of the spring clip  208  relative to and around the weight body  206 . The first flange  216  includes an outer surface  223  that is exposed when the weight member  204  is mounted in a golf club head  200 , and the outer surface  223  may include indicia  224  that are used in combination with at least one indicium  225 , or index mark, disposed on an outer surface of the locking member  210  to indicate whether the weight member  204  is in a locked or unlocked configuration. A plurality of apertures  227  extend radially through the clip portion  218  of weight body  206  and are configured to retain rollers  228 , which may be ball bearings and/or roller pins included in the locking mechanism. The second flange  220  includes travel limit features  229  that extend into the central bore and are positioned around the perimeter of the bore. Travel limit features  229  interact with travel limit features  230  on the locking member  210  to limit the range of rotation of the locking member  210  relative to the weight body  206  in the assembled weight member. 
     The locking member  210  is disposed in the locking member mount  215  and is rotatably coupled to the weight body  206 . The locking member  210  generally includes an outer flange  232  that includes outer surface  226 , the at least one indicium  225 , the travel limit features  230 , a tool engagement feature  233 , and a cam surface  234  disposed between the outer flange  232  and the travel limit features  230 . The outer flange is spaced from the cam surface by a circumferential groove  235  that receives a snap ring  211 . In the assembled weight member  204 , the snap ring  211  extends between the circumferential groove  235  in the locking member  210  and a circumferential groove  217  of the weight body  206 . When the snap ring  211  is installed between the weight body  206  and the locking member  210 , it extends across the interface between the two members and rotatably couples the locking member  210  in the locking member mount  215  so that the locking member  210  can rotate relative to the weight body  206  but is prevented from translating out of the locking member mount  215 . 
     The cam surface  234  generally forms a sidewall of the locking member  210  and includes an unlocked detent feature  236 , a locked detent feature  238 , and ramp portions  240  that extend between the unlocked and locked detent features  236 ,  238 . The cam surface  234  generally provides a bearing surface that the rollers  228  abut during operation, and is shaped to alter the radial position of the rollers  228  within the weight body  206  by forcing the rollers  228  outward toward the spring clip  208 . During operation as the locking member  210  is rotated relative to the weight body  206 , the rollers  228  roll along the cam surface  234 . Because the radial outer dimension of the cam surface  234  varies between the detents  236 ,  238  and across the ramp portion  240 , the rollers  228  are forced to move radially within the apertures  227 . In particular, the radial outer dimension of the cam surface  234  is minimum at the unlocked detents  236 , and increases through the adjacent ramp portion  240  until it reaches a maximum radial outer dimension at an end of the ramp portion adjacent a locked detent  238 . The outer radial dimension at the locked detents  238  is less than the maximum radial outer dimension but greater than the outer radial dimension at the unlocked detents  236 . 
     The spring clip  208  is a flexible semi-annular member that is disposed in the clip recess  219  of the weight body  206 . The spring clip  208  is discontinuous and defines two free ends  242 , spaced by a gap  244 , that flex away from each other as the spring clip is pushed outward by the rollers  228 . The spring clip may also include an alignment feature, such as a slot  243 , that engages the clip alignment feature  222  of the weight body  206 . The engagement of the slot  243  with the clip alignment feature  222  prevents the spring clip from rotating around the weight body  206  within the clip recess  219 , which prevents a roller  228  from becoming aligned with the gap  244  during operation. Such an alignment between the roller  228  and the gap  244  could allow the roller  228  to detach from the weight assembly, reducing the number of rollers  228  influencing the radial movement of the spring clip  208 . As an alternative, an end of the spring clip may extended radially inward and into a clip alignment feature that is formed as a slot in the weight body. In another embodiment, not illustrated, the clip alignment feature could be a slot formed in the weight body and the spring clip&#39;s alignment feature could include a rib extending into the slot of the weight body. 
     Referring to  FIGS. 36 and 37 , operation of the weight member  204  will be described.  FIG. 36  illustrates a cross-section of the weight member  204  in an unlocked configuration. In that configuration, the locking member  210  is rotated using a tool inserted into the tool engagement feature  233  so that the unlocked detents  236  are aligned with the radial apertures  227  of the clip portion  218  of the weight body  206 . In that orientation, the rollers  228  are forced radially inward by the elasticity of the spring clip  208  and are received in the unlocked detents  236  of the locking member  210 . The unlocked detents  236  are sized so that the rollers  228  are positioned so that an outermost part of the roller  228  is generally flush with the outer surface  221  of the clip portion  218 , which allows the spring clip  208  to be in intimate contact with the outer surface  221  of the clip portion  218 . Each unlocked detent  236  defines a curved outer surface of the cam surface  234  having a minimum outer radial dimension R U , and the curved outer surface is generally curved with a diameter that is at least equal to the diameter of the rollers  228 . The spring clip  208  is configured so that it is compressed on the outer surface  221  of the clip portion  218 , but the elasticity of the spring clip  208  allows it to be flexed to a larger diameter during operation. 
     The locking member  210  is rotated within the locking member mount  215  relative to the weight body  206  to transition the weight member  204  between the unlocked configuration, shown in  FIG. 36 , and the locked configuration, shown in  FIG. 37 . For example, with the weight member  204  in the unlocked configuration, the weight member  204  is inserted into a weight mount  201  and the locking member  210  is rotated relative to the weight body  206 . In the present embodiment, interaction between the travel limit features  230  of the locking member  210  and the travel limit features  229  of the weight body  206  restrict the direction of travel of the locking member  210  relative to the weight body  206  in the direction shown by arrows T. The travel limit features  229  are configured to limit the travel required by the cam portion and the spring clip to fully actuate the weight member. In particular, the weight member is configured to require a predetermined amount of relative rotation between the locking member and the weight body to transpose the weight member between the unlocked and the locked configurations. The weight member may be configured to require less than a full rotation of the lock member relative to the weight body and in certain embodiments, to require between ⅙(60°) and ⅓(120°) of a full rotation. In another embodiment, between 30 and 100 degrees of rotation between the lock member relative to the weight body is required. In another embodiment, between 30 and 80 degrees of rotation between the lock member relative to the weight body is required. In another embodiment, between 50 and 100 degrees of rotation between the lock member relative to the weight body is required. 
     As the locking member  210  is rotated, the rollers  228  roll along the cam surface  234  and along the ramp portions  240 . The ramp portions  240  are dimensioned so that the radial outer dimension increases to a maximum outer radial dimension R MAX  toward the locked detent and it is that change in the outer dimension causes the rollers  228  to move radially outward within the apertures  227 . As the rollers  228  move outward they abut the inner surface of the spring clip and force the spring clip  208  radially away from the outer surface  221  of the clip portion  218 , thereby increasing the overall outer dimension of the weight member  204  from D U  to D L . 
     The locking member  210  is rotated relative to weight body  206  until the weight member  204  is transformed into the locked configuration. In the locked configuration, the rollers  228  are disposed in the locked detents  238 . The locked detents  238  are adjacent the location of the ramp portions  240  having R MAX , and the outer radial dimension of the cam surface  234  at the locked detents is R L  which is less than R MAX  but greater than R U . Preferably, each locked detent  238  defines a curved outer surface of the cam surface  234  having a minimum radial dimension R L , and the curved outer surface is generally curved with a diameter that is at least equal to the diameter of the rollers  228 . As described above, the spring clip  208  is configured to elastically squeeze inward when the rollers  228  are extended outward, and because of the difference in the outer radial dimensions at the maximum radial portion of the ramp portions  240  and the locked detents  238 , the rollers  228  are forced into the locked detents  238  by the spring action of the spring clip  208  abutting the rollers  228 . 
     In additional embodiments, the weight mount of the golf club head body may be formed simply by including an aperture in a wall of the golf club head, as shown in  FIGS. 38 and 39 . In a first example, shown in  FIG. 38 , a weight mount is formed by an aperture in a wall of a golf club head body and a weight member  310  is provided that includes an outer flange  312  that abuts an outer surface of the golf club head. The interaction between the outer flange  312  of the weight member and the outer surface limits the insertion of the weight member  310  into the golf club head and provides friction so that the weight member can be converted between the locked and unlocked configurations. When the weight member  310  is placed in the locked configuration, the edge of the aperture is interposed between the outer flange  312  and a spring clip  314  included in the weight member  310 . Weight member  310  also preferably includes a flange gasket  316  that is disposed between the outer flange  312  and the outer surface of the golf club head body. The flange gasket  316  may be used to increase friction between the outer flange  312  and the outer surface of the head, so that it is easier for a user to turn a locking member of the weight member  310  relative to a weight body of the weight member  310  allowing for the weight to be selectively placed in the locked or unlocked configurations. The flange gasket  316  may also, or alternatively, be configured to prevent ingress of water or debris into the golf club head when the weight member  310  is installed. The flange gasket  316  may be an O-ring or other gasket, or it may be a plurality of discrete pads. The flange gasket  316  may be constructed of compressible or non-compressible material and it may include a roughened or textured surface. 
     In another example, shown in  FIG. 39 , a weight member  320  is configured to be installed in a weight mount formed by an aperture in the golf club head. The aperture includes tapered portions of the sidewall of the mount. In particular, a portion of the aperture that forms the weight mount includes an outer portion  322  that includes sidewalls that are tapered so that the weight mount narrows further into the golf club head, and an inner portion  324 . The inner portion  324  also includes tapered sidewalls, but the taper is oriented so that the weight mount widens further into the golf club head. The weight member includes an outer flange  326  that abuts the tapered surface of the outer portion  322  of the weight mount. The weight member  320  is generally constructed as previous examples, and includes a weight body  328  that includes the outer flange  326 , a spring clip  330 , and a locking mechanism for radially extending at least portions of the spring clip  330 . In the present embodiment, the spring clip  330  includes a tapered edge  332  that abuts the inner portion  324  of the weight mount when the spring clip  330  is extended. The interaction between the two tapered surfaces tends to draw the weight member  320  further into the weight mount which compresses a gasket  334 , such as an O-ring, disposed between the tapered outer flange  326  and the outer portion  322  of the weight mount. 
     Another embodiment of a weight member according to the present invention is illustrated in  FIGS. 40-43 . A weight member  250  generally includes a weight body  252 , a plurality of lock tabs  254 , a locking member  256 , and a lock tab retractor such as one or more magnetic inserts. The weight body  252  provides the primary source for mass in the weight member  250 , while providing a frame for supporting lock tabs  254  and a mechanism configured to radially extend and retract the lock tabs  254 . In particular, the weight body  252  is a generally hollow body formed by an inner wall  258 , an outer wall  260  and a side wall  262  extending between the inner wall  258  and the outer wall  260  to define a cavity  263 . The side wall  262  defines a plurality of apertures  264  that receive the plurality of lock tabs  254 . The cavity  263  is generally cylindrical and receives a cam portion of the locking member  256  and a portion of each of the plurality of lock tabs  254 . The weight body  252  is generally formed from multiple components that are coupled using adhesives, welding, brazing, etc. The components generally include a parting line on the side wall  262  of the weight body  252  and may include a plurality of alignment features  265 , such as projections or pins, on one component that engage complementary alignment features, such as bores or recesses, on the other component to align the two components relative to each other. 
     The locking member  256  includes a cam portion  266  that is generally a flange having an elliptical perimeter shape, support projections  268 , magnetic inserts  270 . The cam portion  266  abuts the lock tabs  254  and forces them radially outward into the locked position, shown in  FIG. 43 . The magnetic inserts  270  are disposed in the perimeter of the cam portion  266 . The magnetic inserts  270  are chosen so that they provide polarity that works in conjunction with magnetic inserts  271  on the lock tabs  254  to assist in pushing the lock tabs  254  toward the locking position and retracting the lock tabs into the unlocked position as the locking member is rotated. In the illustrated example, each of the lock tabs includes a magnetic insert  271  having a positive pole adjacent the locking member, and the locking member includes magnetic inserts  270  oriented with positive poles oriented radially outward along the major axis of the cam portion and magnetic inserts  270  with negative poles oriented radially outward along the minor axis of the cam portion. As an alternative, a magnetic insert may be included on only one of the cam portion and the lock tab, and the other of the cam portion and the lock tab at least partially constructed of a ferrous material so that magnetic attraction retracts the lock tab. Additionally, the cam portion may only include magnetic inserts designed to attract the lock tabs, relying on the cam itself to push the lock tabs outward. In an alternative embodiment, the cam portion may also be made of a ferrous material and the lock tabs could include magnetic inserts configured to pull the lock tabs towards the cam portion. 
     The support projections  268  of locking member  256  are cylindrical projections extending away from the center of the elliptical cam portion  266  and into apertures  272  defined by weight body  252 . The apertures  272  and cavity  263  are sized to receive the support projections  268  and cam portion, respectively, while allowing them to rotate relative to the weight body  252 . 
     The lock tabs  254  extend through the apertures  264  in the side wall of the weight body  252  and are tapered so that their travel radially outward is limited by the size of the apertures  264 . As illustrated, the apertures  264  are tapered to match the side wall taper of the lock tabs  254 , and the taper is oriented so that the apertures  264  are the smallest at their radially outward extent. Additionally, the smallest portion of each aperture  264  is narrower than the widest portion of the lock tab  254 . As a result, the lock tabs  254  are installed from the cavity side of the side wall  262  of the weight body  252 . After the lock tabs  254  are inserted, the locking member  256  is installed in the cavity  263  and the body assembled, thereby retaining the lock tabs  254  in the cavity  263 . The outer surface of cam portion  266  of locking member  256  includes flats  274  that act as detents for the lock tabs  254  when the weight member  250  is in the locked configuration. 
     A user may selectively convert the weight member  250  between the unlocked configuration, shown in  FIG. 42 , and the locked configuration, shown in  FIG. 43 . In particular, the user inserts a tool into a tool engagement feature  269  and the locking member  256  is rotated relative to weight body  252  between the unlocked configuration and the locked configuration. In general, in the unlocked configuration, the minor axis of the elliptical cam portion  266  is aligned with the lock tabs  254 , which places magnetic inserts  270  of the locking member  256  adjacent magnetic inserts  271  of the lock tabs  254  having opposite polarities so that the lock tabs  254  are pulled radially inward. As the locking member  256  is rotated from the unlocked configuration, the outer perimeter of the cam portion  266  abuts the lock tabs  254  and forces the lock tabs further into apertures  264 . When the locking member  256  is fully rotated into the locked configuration, the major axis of the elliptical cam portion  266  is aligned with the lock tabs  254 , which places the magnetic inserts  270  of the locking member  256  adjacent magnetic inserts  271  of the lock tabs  254  having the same polarities so that the lock tabs  254  are urged away from the cam portion  266 . In the locked configuration, the lock tabs  254  are urged into abutment with the sidewall  262  of the weight body  252  in the apertures  264 , and flats  274  on the cam portion  266  are adjacent the innermost surfaces of the lock tabs  254 . The flats shown form detents that provide resistance from turning the locking member from the locked orientation. 
     Additional embodiments having an outer appearance identical to that of weight member  250  shown in  FIGS. 40 and 41  may utilize spring clips instead of magnets as a retractor to retract the lock tabs and will be described with reference to  FIGS. 44-47 . Referring first to  FIGS. 44 and 45 , a weight member  280  includes a weight body  252  that is the same as that of weight member  250 , an elliptical spring clip  282 , lock tabs  284 , and a locking member  286 . The elliptical spring clip  282  circumscribes a cam portion  288  of the locking member  286 . The cam portion  288  is configured to slide within the elliptical spring clip  282 . The lock tabs  284  are fixed to the elliptical spring clip  282  and prevent the elliptical spring from rotating when the cam portion  288  of the locking member  286  rotates relative to the weight body  252 . In particular, the lock tabs  284  are disposed in the apertures  264  of the side wall  262  of weight body  252  and are restricted from movement other than radial movement relative to the weight body  252  so the coupling between the elliptical spring clip  282  and the lock tabs  284  also prevents the elliptical spring from rotating with the locking member  286 . Preferably, a lubricant is disposed between the elliptical spring clip  282  and the cam portion  288  so that the cam portion  288  slides within the elliptical spring clip  282 , and the elliptical spring clip  282  flexes to match the orientation of the cam portion  288  resulting in the lock tabs  284  being selectively extended and retracted. 
     Now referring to  FIGS. 46 and 47 , a weight member  290  includes a weight body  292  that is similar to that of weight member  250 , a pair of spring clips  294 , lock tabs  296 , and a locking member  298 . The spring clips  294  are mounted in weight body  292  so that they extend across the cavity formed by weight body  292  and abut the sidewall of a cam portion  300  of the locking member  298 . The cam portion  300  is configured to rotate within the weight body while in sliding abutment with the spring clips  294 . Each lock tab  296  is fixed to one of the spring clips  294  so that as the spring clip  294  is allowed to flex, the lock tab  296  moves radially with the spring clip  294 . The lock tabs  296  are disposed in apertures  302  of the side wall  262  of weight body  292  and are constrained to move radially relative to the weight body  292 . Preferably, a lubricant is disposed between the spring clips  294  and the cam portion  300  and the cam portion  300  is in sliding abutment with the spring clips  294 . The spring clips  294  flex radially as the locking member  298  rotates, and in particular, the lock tabs  296  are extended when a major axis of the generally elliptical cam portion  300  is aligned with the lock tabs  296 . Conversely, the lock tabs are pulled inward and retracted by the spring clips  294  when a minor axis of the elliptical cam portion  300  is aligned with the lock tabs  296 . 
     In another example embodiment, shown in  FIGS. 48-50 , a golf club head includes a weight system that can provide adjustability of the center of gravity of the golf club head. Adjustment of the location of the center of gravity can be accomplished using a plurality of weight members  340  having different masses interchangeably disposed in one or more weight mounts  342 . The weight member  340  is assembled from a weight body  344 , a locking mechanism that includes a plurality of lock tabs  346  and a locking member  350 , and a spring clip  348 . Similar to previous embodiments, the rotation of locking member  350  forces the lock tabs  346  to move outward to lock the weight member  340  in the weight mount  342 . The weight member  340  is installed in the mount  342  by inserting the weight member  340 , when it is in a first configuration (i.e., an unlocked configuration), into an undercut recess and using the locking member  350  to convert the weight member  340  into a second configuration (i.e., a locked configuration) in which the lock tabs  346  extend outward so that at least a portion of each of the lock tabs  346  extends into the undercut. 
     The weight mount  342  generally includes an outer flange  354 , a side wall  356 , and a base  358 . The outer flange  354  forms the outermost structure of the weight mount  342 . The outer flange  354  defines an aperture  360  that forms an opening into the weight mount  342 . The side wall  356  extends inward from the outer flange  354  from a portion of the outer flange  354  that is spaced from the aperture  360  to form an undercut  364 . The side wall  356  forms a generally cylindrical or conical surface. The undercut  364  provides a structure that can interact with the weight member  340  to retain the weight member  340  in the weight mount  342 . The base  358  forms an innermost surface of the weight mount  342 . The side wall  356  is also coupled to the base  358  so that the base  358  is recessed from the outer flange  354 . In the illustrated embodiment, the base  358  can include a coupling structure, such as a boss  368  that is configured to engage the locking member  350 , such as by threaded engagement. The combination of the outer flange  354 , the side wall  356 , and the base  358  forms a cavity  362  that is sized to receive the weight member  340 . The weight mount  342  can be formed or installed in a golf club head and the outer flange  354  can form a portion of the outer surface of the golf club head. In some embodiments, the weight mount  342  is formed as an integral portion of the golf cub head, such as by being cast or forged into a component of the golf club head. In some embodiments, the weight mount  342  is constructed as a separate component that can be bonded, co-molded, or otherwise mechanically coupled with a component of a golf club head. 
     The weight body  344  can provide a frame for supporting the lock tabs  346  while providing a structure that allows for altering the mass of weight member  340 . The weight body  344  can include a bore  352  and a plurality of slides  366 . The bore  352  can be configured to receive a portion of the locking member  350  and in some embodiments to be coupled directly to the locking member  350 . In the illustrated embodiment, the bore  352  is configured to provide clearance for the locking member  350  to extend through the weight body  344  so that the locking member  350  can engage the threaded boss  368  of the weight mount  342 . The slides  366  of the weight body  344  are configured to interact with slides  386  included in the lock tabs  346  to constrain relative motion between the weight body  344  and the lock tabs  346 . The slides  366  can be elongate rails that extend from a surface of the weight body  344  that abuts the lock tabs  346  and the slides  366  can extend across a portion of the surface. In at least one example embodiment, the slides  366  are dovetail rails that form undercut side edges. The weight body  344  can be a generally disc-shaped body and can be constructed of metallic and/or non-metallic materials. Additionally, the weight body  344  can include cavities or recesses to alter the mass of the weight body  344 . 
     The locking mechanism includes the plurality of the lock tabs  346  and the locking member  350  and is configured so that rotation of the locking member  350  causes the lock tabs  346  to move radially outward relative to the weight body  344  during use. For example, when the weight member  340  is disposed in the weight mount  342 , by turning locking member  350  so that it extends further into the boss  368 , such as by threaded engagement, the lock tabs  346  are moved radially outward to convert the weight member  340  into the second (i.e., locked) configuration. As the lock tabs move radially outward, an engagement portion  384  of the lock tabs  346  engages the undercut  364  of the weight mount  342  to draw the weight member  340  into the weight mount  342  and to retain the weight member  340  in the weight mount  342 . 
     Each lock tab  346  comprises a tapered abutment portion  382 , the engagement portion  384 , and a slide  386 . The tapered abutment portion  382  can include a tapered abutment surface that is configured to abut a portion of the locking member  350 , such as a tapered head  370  of the locking member. The abutment surface is tapered so that movement of the locking member  350  along a longitudinal axis L of the locking member  350  can cause radial movement of the lock tabs  346  with respect to the longitudinal axis L. The abutment surface can be angled (e.g., angle θ 1 ) in a range between about 30° and about 60° relative to the longitudinal axis L of the locking member  350 , and in an embodiment the abutment surface is angled by about 45° relative to the longitudinal axis L of the locking member  350 . 
     The engagement portion  384  can include a tapered engagement surface that can be configured to contact an under side of the outer flange  354  in the undercut  364 . The engagement surface can be tapered so that as it contacts the outer flange  354 , the weight member  340  is forced downward further into the weight mount  342 . The engagement surface can be angled (e.g., angle θ 2 ) in a range between about 30° and about 60° relative to the longitudinal axis L of the locking member  350 , and in an embodiment the engagement surface is angled by about 45° relative to a plane that is perpendicular to the longitudinal axis L of the locking member  350 . 
     The slide  386  included in the lock tab  346  complements a slide  366  of the weight body  344 . In the illustrated embodiment, the slide  386  is an elongate channel that receives the elongate slide  366 , and the elongate channel can have a dovetailed cross-sectional shape to complement a dovetail rail forming the slide  366 . The slide  386  of the lock tab  346  is configured to slidably couple to at least one of the plurality of slides  366  of the weight body  344 . In at least one embodiment, the slides  386  of the lock tab  346  and the slides  366  of the weight body  344  are configured to prevent relative motion other than sliding radially between the lock tabs  346  and the weight body  344 . 
     The locking member  350  includes the tapered head  370 , a shank  372 , and a tool engagement feature  374 . The tapered head  370  is configured to engage the tapered abutment portion of the lock tabs  346  and to force the lock tabs  346  to move radially outward from the locking member  350  when the locking member  350  is advanced into the weight mount  342 . The shank  372  can include a retention portion  376  and a coupling portion  378 . The retention portion  376  can be used in combination with a snap ring  380  to rotatably couple the locking member  350  to the weight body  344 . In the illustrated embodiment, the retention portion  376  is disposed between the tapered head  370  and the coupling portion  378  and the retention portion  376  has a diameter that is smaller than each of those portions. After the locking member  350  is inserted into the bore  352  of the weight body  344 , the snap ring  380  is coupled to the retention portion  376 , as shown in  FIGS. 49 and 50 . The snap ring  380  is sized to have an outer dimension that is larger than at least a portion of the bore  352  that is disposed between the snap ring  380  and the tapered head  370  of the locking member  350  so that the locking member  350  is prevented from disengaging from the weight body  344 . The snap ring  380  is configured so that the locking member  350  can rotate relative to the weight body  344 . The coupling portion  378  is configured to engage the boss  368 , such as by including threads that threadedly engage the threads of the boss  368 , so that the locking member  350  can be driven axially into the weight mount  342  by rotating the locking member  350  relative to the weight mount  342 . 
     The spring clip  348  circumscribes at least a portion of the lock tabs  346  and is configured to bias the positions of the lock tabs  346  relative to the weight body  344  to a predefined position. In at least one embodiment, the spring clip  348  is configured to draw the lock tabs radially inward toward the locking member  350  so that a bias of the spring clip  348  can be used to return the weight member  340  to the first (i.e., unlocked) configuration. The spring clip  348  can be inserted into a spring slot  388  included in the outer side walls of the lock tabs  346  so that the spring clip  348  extends circumferentially around the lock tabs  346 . The size and material of the spring clip  348  is selected so that over the range of travel of the lock tabs  346  the spring clip  348  deforms elastically between the first configuration and the second configuration of the weight member  340 . It should be appreciated that although the spring clip  348  is shown as a single discontinuous annular body that extends around all of the lock tabs  346 , the spring clip  348  can include a plurality of spring members that are coupled between the lock tabs  346  and/or the weight body  344  to bias the positions of the lock tabs  346  relative to the weight body  344  during use. 
     The weight body  344 , the lock tabs  346 , and the locking member  350  are coupled so that the tapered abutment portion  382  of the lock tabs  346  is interposed between the tapered head  370  of the locking member  350  and the weight body  344 . The construction allows the weight member  340  to be converted between the first (i.e., unlocked) configuration, shown in  FIG. 49 , and the second (i.e., locked) configuration, shown in  FIG. 50 , by operating the locking member  350 . For example, as the locking member  350  is driven further into the weight mount  342 , the tapered head  370  of the locking member  350  abuts the tapered abutment portion  382  of the lock tabs  346  and forces the lock tabs  346  to move radially outward. The radial outward movement of the lock tabs  346  forces the engagement portion  384  into abutment with the outer flange  354  of the weight mount at the undercut  364 . The slides  386  of the lock tabs  346  slidably couple with the slides  366  of the weight body  344  and can be configured to limit the relative movement between the lock tabs  346  and the weight body  344  to relative sliding in a radial direction. An advantage of limiting the relative movement between the weight body  344  and the lock tabs  346  is that separation between the weight body  344  and the lock tabs  346  can be avoided when the weight member  340  is converted between the locked and unlocked configurations. In at least one embodiment, the slides  366  of the weight body  344  are raised dovetail rails and the slides  386  of the lock tabs  346  are dovetail slots that receive, and slidably couple with, the raised dovetail rails of the weight body  344 . 
     In the unlocked configuration, the lock tabs  346  are retained in a radially inward configuration, such as under the spring force of the spring clip  348 , so that the weight member  340  can be inserted into the cavity  362  through the aperture  360 . For example, the lock tabs  346  are positioned relative to the weight body  344  so that an outer dimension of the lock tabs  346 , and the remainder of the weight member  340 , is less than an inner dimension of the aperture  360  of the weight mount  342  so that the weight member  340  can be inserted or removed from the weight mount  342 . 
     In the locked configuration, the lock tabs  346  are forced radially outward by the locking member  350  so that at least a portion of the lock tabs  346  extends into the undercut  364  of the weight mount  342 . As the locking member  350  is threaded into the boss  368  the weight body  344  is forced into the weight mount  342  until the weight body  344  abuts the base  358  of the weight mount  342 . When the locking member  350  is driven further into the boss  368 , the tapered head  370  of the locking member  350  abuts the tapered abutment portion  382  of the lock tabs  346  and forces the lock tabs  346  to slide radially outward relative to the weight body  344 . The lock tabs  346  slide radially outward relative to a side wall of the weight body  344  until the engagement portion  384  of the lock tabs  346  is forced against the underside of the outer flange  354 . The interaction between the engagement portion  384  and the outer flange  354  forces the weight member  340  further into the weight mount  342  and applies an outward force on the weight mount  342  to lock the weight member  340  in the weight mount  342 . In the locked configuration, the lock tabs are positioned relative to the weight body so that the outer dimension of the lock tabs  346  is greater than the inner dimension of the aperture  360 . 
     Referring to  FIGS. 51-53 , another embodiment of a weight member  400  will be described. Weight member  400  is configured so that it can be selectively locked into a weight mount  402  that does not include structure configured to directly engage with the locking member  404 , such as a boss. Instead, the locking member  404  of the weight member  400  is configured to couple directly with a weight body  406  instead of directly to the weight mount  402 . Weight member  400  is assembled from the weight body  406 , a plurality of lock tabs  346 , a spring clip  348 , and the locking member  404 . The constructions of the lock tabs  346 , and the spring clip  348  can be the same as those used in weight member  340  described above and will not be further described. Similar to previous embodiments, the rotation of the locking member  404  relative to the weight body  406  forces the lock tabs  346  to move outward to retain the weight member  400  in the weight mount  402 . The weight member  400  is installed in the mount  402  by placing the weight member  400  in an undercut recess and using the locking member  404  to extend the lock tabs  346  outward so that at least a portion of the lock tabs  346  extends into the undercut  416 . 
     The weight mount  402  generally includes an outer flange  408 , a side wall  410 , and a base  412 . The outer flange  408  forms the outermost structure of the weight mount  402  when it is formed, or installed, in a golf club head and can form a portion of the outer surface of the golf club head. The outer flange  408  defines an aperture  414  that forms an opening into the weight mount  402 . The side wall  410  extends inward from the outer flange  408  from a portion of the outer flange  408  that is spaced from the aperture  414  to form an undercut  416 . The undercut  416  provides a structure that can interact with the weight member  400  to retain the weight member  400  in the weight mount  402 . The side wall  410  is also coupled to the base  412  so that the base  412  is recessed from the outer flange  408 . The base  412  forms an innermost surface of the weight mount  402 . In the illustrated embodiment, the base  412  does not include a coupling structure for coupling with the locking member  404 , but it can include anti-rotation features, such as projections  420 , to assist relative rotation between the locking member  404  and the weight body  406 . For example, the projections  420  can be configured to engage anti-rotation features included in the weight body  406 , such as recesses  422 , so that relative rotation between the locking member  404  and the weight body  406  is permitted while relative rotation between the base  412  and the weight body  406  is prevented. The combination of the outer flange  408 , the side wall  410 , and the base  412  forms a cavity  418  that is sized to receive the weight member  400 . In some embodiments, the weight mount  402  is formed as an integral portion of the golf club head. In some embodiments, the weight mount  402  is constructed as a separate component that can be bonded, co-molded or otherwise mechanically coupled with a golf club head or a component of a golf club head. 
     The weight body  406  can provide a frame for supporting the lock tabs  346  while providing a source for mass in the weight member  400 . The weight body  406  can be a generally disc-shaped body and can include a bore  424  and a plurality of slides  426 . The bore  424  can be configured to receive a portion of the locking member  404  and to couple with the locking member  404 , such as by a threaded interface. The slides  426  can be elongate rails that extend from a surface of the weight body  406  and radially across the surface. In at least one example embodiment, the slides  426  are dovetail rails that form undercut side edges. The weight body  406  can be constructed of metallic and/or non-metallic materials and can include recesses to alter the mass. 
     In the illustrated embodiment, the locking member  404  extends into the bore  424  of the weight body  406  and is configured to thread into the bore  424 . The locking member  404  generally includes a tapered head  428 , a shank  430 , and a tool engagement feature  432 . The tapered head  428  is configured to abut the lock tabs  346  and to force the lock tabs  346  to move radially outward from the locking member  404  as the locking member  404  is threaded into the bore  424 . 
     The shank  430  includes a retention portion  434  and a coupling portion  436 . In the assembled weight member  400 , after the locking member  404  is at least partially inserted into the bore  424 , the snap ring  380  is coupled to the retention portion  434 , as shown in  FIGS. 52 and 53 , and prevents the locking member  404  from disengaging from the weight body  406  by being threaded completely out of the weight body  406 . The snap ring  380  can also be coupled to the retention portion  434  so that the locking member  404  can rotate relative to the weight body  406 . The coupling portion  436  is configured to engage the bore  424  so that the locking member  404  can be driven axially into the weight body  406  by rotating the locking member  404  relative to the weight body  406 . As the locking member  404  is driven further into the weight body  406 , the tapered head  428  is forced to abut against a tapered portion  382  of the lock tabs  346  to force the lock tabs  346  radially outward. 
     The weight member  400  can be converted between the unlocked configuration, shown in  FIG. 52 , and the locked configuration, shown in  FIG. 53 , by operating the locking member  404 . In the unlocked configuration, the lock tabs  346  are retained in a radially inward configuration, such as under the spring force of the spring clip  348 , so that the weight member  400  can be inserted into the cavity  418 . 
     The lock tabs  346  are configured to move radially outward relative to the weight body  406  so that a portion of the lock tabs  346  engages the undercut  416  of the weight mount  402 , such as by extending into the undercut  416 , to retain the weight member  400  in the weight mount  402 . In particular, at least a portion of the lock tabs  346  is interposed between the locking member  404  and the weight body  406  and as the locking member  404  is driven into the weight body  406 , the tapered head  370  abuts a tapered portion  382  of the lock tabs  346  and forces the lock tabs  346  to move radially outward. The radial outward movement of the lock tabs  346  forces the engagement surface  384  into abutment with the outer flange  408  of the weight mount  402  at the undercut  416 . 
     The slides  386  of the lock tabs  346  slidably couple with the slides  426  of the weight body  406  and can be configured to limit the relative movement between the lock tabs  346  and the weight body  406  in directions other than relative sliding in a radial direction. An advantage of limiting the relative movement between the weight body  406  and the lock tabs  346  is that separation of the weight body  406  from the lock tabs  346  can be avoided when the weight member  400  is converted between the locked and unlocked configurations. In at least one embodiment, the slides  426  of the weight body  406  are raised dovetail rails and the slides  386  of the lock tabs  346  are dovetail slots that receive, and slidably couple with, the raised dovetail rails of the weight body  406 . 
     In another embodiment shown in  FIG. 54 , the weight member  400  can include a cover  438 . The cover  438  can be included to prevent debris from entering the space between the weight mount  402  and the weight member  400 . Additionally, the cover  438  can include indicia, such as color, symbols, and/or alphanumeric symbols, that identify a physical attribute, such as the mass, of the weight member  400 . Still further, the cover  438  can provide desired aesthetics to the weight member  400 . 
     In at least one example embodiment, a portion of the cover  438  can be interposed between the locking member  404  and the lock tabs  346  to retain the cover  438 . For example, the cover  438  can define an aperture formed by a tapered side wall  440 . The locking member  404  extends through the aperture and into the bore  424  where it engages the weight body  406 . When the weight member  400  includes the cover  438  and is in the locked configuration, shown in  FIG. 54 , the tapered side wall  440  is interposed between the tapered head  428  of the locking member  404  and the lock tabs  346  so that the cover  438  is drawn toward the weight mount  402  and against the outer flange  408 . 
     Referring to  FIGS. 55-57  another embodiment of a weight member  460  will be described. Weight member  460  is configured so that it can be selectively locked into a weight mount  462 . In the illustrated embodiment, a locking member  464  of the weight member  460  is configured to couple with a weight body  466 . Weight member  460  is assembled from the weight body  466 , a plurality of lock tabs  346 , a spring clip  348 , and the locking member  464 . The constructions of the lock tabs  346 , and the spring clip  348  can be the same as those used in weight members  340  and  400 , described above, and will not be further described. Similar to previous embodiments, the rotation of the locking member  464  relative to the weight body  466  forces the lock tabs  346  to move outward to retain the weight member  460  in the weight mount  462 . The weight member  460  is installed in the mount  462  by placing the weight member  460  in an undercut recess and using the locking member  464  to extend the lock tabs  346  outward so that at least a portion of the lock tabs  346  extends into the undercut. 
     The weight mount  462  generally includes an outer flange  468 , a side wall  470 , and a base  472 . The outer flange  468  forms the outermost structure of the weight mount  462  when it is formed, or installed, in a golf club head and can form a portion of the outer surface of the golf club head. The outer flange  468  defines an aperture  474  that forms an opening into the weight mount  462 . The side wall  470  extends inward from the outer flange  468  from a portion of the outer flange  468  that is spaced from the aperture  474  to form an undercut  476 . The undercut  476  provides a structure that can interact with the weight member  460  to retain the weight member  460  in the weight mount  462 . The side wall  470  is also coupled to the base  472  so that the base  472  is recessed from the outer flange  468 . The base  472  forms an innermost surface of the weight mount  462 . In the illustrated embodiment, the base  472  is a continuous wall that does not include a coupling structure for coupling with the locking member  464 , such as a boss. In particular, because the locking member  464  in the illustrated embodiment is configured so that it does not extend substantially out of the weight body  466  toward the base  472 , no aperture has to be included in the base  472  to provide clearance for the locking member  464 . As a result, the construction of the base  472  is simplified and easier to manufacture and no opening into the golf club head is included that could allow moisture or debris to enter the golf club head. The base can include anti-rotation features, such as projections, to assist relative rotation between the locking member  464  and the weight body  466 . The combination of the outer flange  468 , the side wall  470 , and the base  472  forms a cavity  478  that is sized to receive the weight member  460 . In some embodiments, the weight mount  462  is formed as an integral portion of the golf cub head. In some embodiments, the weight mount  462  is constructed as a separate component that can be coupled, such as by being welded or bonded, co-molded or otherwise mechanically coupled with a golf club head or a component of a golf club head. 
     The weight body  466  is a body that can provide a frame for supporting the lock tabs  346  while providing a construction for adjusting the mass of weight member  460 . In the illustrated embodiment, the weight body  466  is a generally disc-shaped body that substantially matches the shape of the cavity  478 . The weight body  466  can include a bore  480  and a plurality of slides  482 . The bore  480  can be configured to receive a portion of the locking member  464  and to couple with the locking member  464 , such as by a threaded interface. The slides  482  can be elongate rails that extend from a surface of the weight body  466  and radially across the surface. In at least one example embodiment, the slides  482  are dovetail rails that form undercut side edges. The weight body  466  can be constructed of metallic and/or non-metallic materials, and the material can be selected to provide a desired mass. 
     In the illustrated embodiment, the locking member  464  extends into the bore  480  of the weight body  466  and is configured to thread into the bore  480 . The locking member  464  generally includes a tapered head  484 , a shank  486 , and a tool engagement feature  488 . The tapered head  484  is configured to abut the lock tabs  346  and to force the lock tabs  346  to move radially outward from the locking member  464 . 
     In the illustrated embodiment, the shank  486  is threaded and does not include a non-threaded retention portion. The shank  486  threads into the bore  480  so that the locking member  464  can be driven axially into the weight body  466  by rotating the locking member  464  relative to the weight body  466 . As the locking member  464  is driven further into the weight body  466 , the tapered head  484  is forced to abut against the tapered abutment portion  382  of the lock tabs  346  to force the lock tabs  346  outward. 
     The weight member  400  can be converted between the unlocked configuration, shown in  FIG. 56 , and the locked configuration, shown in  FIG. 57 , by operating the locking member  464 . In the unlocked configuration, the lock tabs  346  are retained in a radially inward configuration, such as under the spring force of the spring clip  348 , so that the weight member  460  can be inserted into the cavity  478 . 
     The lock tabs  346  are configured to move radially outward relative to the weight body  466  so that a portion of the lock tabs  346  engages the undercut  476  of the weight mount  462 , such as by extending into the undercut  476 , to retain the weight member  460  in the weight mount  462 . At least a portion of the lock tabs  346  is interposed between the locking member  464  and the weight body  466  and as the locking member  464  is driven into the weight mount  462 , the tapered head  484  abuts a tapered portion  382  of the lock tabs  346  and forces the lock tabs  346  to move radially outward. The radial outward movement of the lock tabs  346  forces the engagement surface  384  into abutment with the outer flange  468  of the weight mount  462  at the undercut  476 . 
     The slides  386  of the lock tabs  346  slidably couple with the slides  482  of the weight body  466  and can be configured to limit the relative movement between the lock tabs  346  and the weight body  466  in directions other than relative sliding in a radial direction. An advantage of limiting the relative movement between the weight body  466  and the lock tabs  346  is that separation of the weight body  466  from the lock tabs  346  can be avoided when the weight member  460  is converted between the locked and unlocked configurations. In at least one embodiment, the slides  482  of the weight body  466  are raised dovetail rails and the slides  386  of the lock tabs  346  are dovetail slots that receive, and slidably couple with, the raised dovetail rails of the weight body  466 . 
     Referring to  FIGS. 58-60  another embodiment of a weight member  500  will be described. Weight member  500  is configured so that it can be slid and selectively locked into a weight mount that is formed as an elongate weight track  502 . In the illustrated embodiment, a locking member  504  of the weight member  500  is configured to couple with a weight body  506 . Weight member  500  is assembled from the weight body  506 , a plurality of lock tabs  508 , a spring clip  348 , and the locking member  504 . The spring clip  348  can be the same as that used in weight members  340 ,  400  and  460 , described above, and will not be further described. The rotation of the locking member  504  relative to the weight body  506  forces the lock tabs  508  to move outward to retain the weight member  500  at a selected position in the weight track  502 . The weight member  500  is installed in the weight track  502  so that it is slidable within the weight track  502  and the components, such as the weight body  506  and the lock tabs  508  can be shaped to complement features included in the weight track  502 . 
     The weight track  502  generally include elongate outer flanges  512 , elongate side walls  514 , an elongate base  516  that extends between the side walls  514  and forms an innermost wall of the weight track  502 , and end walls. The outer flanges  512  form the outermost structure of the weight track  502  when it is formed, or installed, in a golf club head and the outer flanges  512  can form a portion of the outer surface of the golf club head. The outer flanges  512  are generally parallel and spaced from each other to define an elongate opening  518  into the weight track  502 . Each side wall  514  extends inward from a respective outer flange  512  from a portion of the respective outer flange  512  that is spaced from the elongate opening  518  to form an elongate undercut  520 . The undercut  520  provides a structure that can interact with the weight member  500  to retain the weight member  500  in the weight track  502 . The side walls  514  are also coupled to the base  516  so that the base  516  is recessed from the outer flanges  512 . 
     In the illustrated embodiment, the base  516  is a continuous wall and does not include a coupling structure for directly coupling with the locking member  504 . The base can include anti-rotation features, such as one or more elongate steps or rails  540 , to prevent relative rotation between the weight body  506  and the weight track  502 . The combination of the outer flanges  512 , the side walls  514 , the base  516 , and the end walls forms a cavity  522  that is sized to receive the weight member  500  and to permit the weight member  500  to slide longitudinally within the weight track  502 . In some embodiments, the weight track  502  is formed as an integral portion of the golf cub head. In some embodiments, the weight track  502  is constructed as a separate component that can be coupled, such as by being welded or bonded, co-molded or otherwise mechanically coupled with a golf club head or a component of a golf club head. 
     Similar to previously described embodiments, the lock tabs  508  are configured to move radially outward relative to the weight body  506  during use of the weight member  500  so that a portion of the lock tabs  508  engages the undercut  520  of the weight track  502  to retain the weight member  500  in the weight track  502 . The illustrated embodiment exemplifies that the lock tabs can have different shapes and the shape of the lock tabs can be selected to complement the shape of the weight mount. For example, the lock tabs  508  have a generally polygonal shape so that the edges that engage the undercut  520  are linear and complement the generally linear side walls  514  of the weight mount  502 . 
     Each lock tab  508  comprises a tapered abutment portion  524 , an engagement surface  526 , and a slide  528 . At least a portion of the lock tabs  508  is interposed between the locking member  504  and the weight body  506 . During use, as the locking member  504  is driven further into the weight body  506 , a tapered head  530  of the locking member  504  abuts the tapered abutment portion  524  of the lock tabs  508  and forces the lock tabs  508  to move radially outward. The radial outward movement of the lock tabs  508  forces the engagement surface  526  into abutment with the outer flanges  512  of the weight track  502  at the undercut  520 . 
     The slides  528  of the lock tabs  508  slidably couple with slides  532  of the weight body  506  and can be configured to limit the relative movement between the lock tabs  508  and the weight body  506  to only relative sliding in a radial direction. An advantage of limiting the relative movement between the weight body  506  and the lock tabs  508  is that separation between the weight body  506  and the lock tabs  508  can be avoided when the weight member  500  is converted between the locked and unlocked configurations. In at least one embodiment, the slides  532  of the weight body  506  are raised dovetail rails and the slides  528  of the lock tabs  508  are dovetail slots that receive, and slidably couple with, the raised dovetail rails of the weight body  506 . 
     The weight body  506  is a body that can provide a construction for adjusting the mass of weight member  500 , while providing a frame for supporting the lock tabs  508 . In the illustrated embodiment, the weight body  506  is a generally disc-shaped body that is sized so that it can be inserted into the cavity  522  through the opening  518 . The weight body  506  can include a bore  534  and a plurality of the slides  532 . The bore  534  can be configured to receive a portion of the locking member  504  and to couple with the locking member  504 , such as by a threaded interface. The slides  532  can be elongate rails that extend from a surface of the weight body  506  and across the surface. In at least one example embodiment, the slides  532  are dovetail rails that form undercut side edges. The weight body  506  can be constructed of metallic and/or non-metallic materials, and the material can be selected to provide a desired mass. 
     Anti-rotation features can be included in the weight track  502  and one or more portions of the weight member  500 . For example, the weight track  502  and the weight body  506  and/or lock tabs  508  can include features that prevent relative rotation between the weight track  502 , the weight body  506  and the lock tabs so that the locking member  504  can be rotated relative to the weight track  502 , the weight body  506  and the lock tabs  508  to convert the weight member  500  between the unlocked and locked configurations. In the illustrated embodiment, the weight track  502  includes a pair of elongate rails  540  and the weight body  506  includes parallel notches  542  that are sized and shaped to receive portions of the rails  540 . 
     The locking member  504  extends into the bore  534  of the weight body  506  and is configured to thread into the bore  534 . The locking member  504  generally includes the tapered head  530 , a shank  536 , and a tool engagement feature  538 . The tapered head  530  is configured to abut the lock tabs  508  and to force the lock tabs  508  to move radially outward from the locking member  504 . 
     In the illustrated embodiment, the shank  536  is threaded and does not include a non-threaded retention portion. The shank  536  threads into the bore  534  so that the locking member  504  can be driven axially into the weight body  506  by rotating the locking member  504  relative to the weight body  506 . As the locking member  504  is driven further into the weight body  506 , the tapered head  530  is forced to abut against the tapered abutment portion  524  of the lock tabs  508  to force the lock tabs  508  outward. 
     The weight member  500  can be converted between the unlocked configuration, shown in  FIG. 59 , and the locked configuration, shown in  FIG. 60 , by operating the locking member  504 . In the unlocked configuration, the lock tabs  508  are retained in a radially inward configuration, such as under the spring force of the spring clip  348 , so that the weight member  500  can be inserted into the cavity  522 . 
     The lock tabs  508  are configured to move radially outward relative to the weight body  506  so that a portion of the lock tabs  508  engages the undercut  520  of the weight track  502 , such as by extending into the undercut  520 , to retain the weight member  500  in the weight track  502 . At least a portion of the lock tabs  508  is interposed between the locking member  504  and the weight body  506  and as the locking member  504  is driven into the weight track  502 , the tapered head  530  abuts the tapered abutment portion  524  of the lock tabs  508  and forces the lock tabs  508  to move radially outward. The radial outward movement of the lock tabs  508  forces the engagement surface  526  into abutment with the outer flange  512  of the weight track  502  at the undercut  520 . 
     The slides  528  of the lock tabs  508  slidably couple with the slides  532  of the weight body  506  and can be configured to limit the relative movement between the lock tabs  508  and the weight body  506  in directions other than relative sliding in a radial direction. An advantage of limiting the relative movement between the weight body  506  and the lock tabs  508  is that separation of the weight body  506  from the lock tabs  508  can be avoided when the weight member  500  is converted between the locked and unlocked configurations. In at least one embodiment, the slides  532  of the weight body  506  are raised dovetail rails and the slides  528  of the lock tabs  508  are dovetail slots that receive, and slidably couple with, the raised dovetail rails of the weight body  506 . 
     Referring to  FIGS. 61-63  another embodiment of a weight member  560  will be described. Weight member  560  is configured to couple with a simplified construction of a weight mount  562 . For example, weight mount  562  can be constructed as an aperture in the body of a golf club head and does not require a base. Similar to previously described embodiments, operation of a locking member  564  causes a plurality of lock tabs  568  to extend outward to retain the weight member  560  in the weight mount  562 . However, the weight member  560  is configured so that the lock tabs  568  are disposed further inward of a weight body  570  when the weight member  560  is installed. 
     The weight mount  562  is formed as an aperture in a golf club head and includes a tapered flange  572 . In the illustrated embodiment both the inner portion and the outer portion of the flange  572  are tapered. The flange  572  is formed in a side wall of the weight mount  562  and is disposed at an innermost end of the side wall  574 , but it should be appreciated that the flange  572  can be formed at any portion of the side wall  574 . The weight mount  562  can also include a plurality of spline tabs  575  are configured as anti-rotation features that interact with the weight body  570 . 
     Weight member  560  is assembled from the weight body  570 , the plurality of lock tabs  568 , a spring clip  348 , the locking member  564 , and a tapered nut  576 . The spring clip  348  can be the same as that used in weight members  340 ,  400  and  460 , described above, and will not be further described. 
     The weight body  570  is a body that can provide a frame for supporting the lock tabs  568  while providing a construction for adjusting the mass of weight member  560 . Weight body  570  is a generally annular body that defines a bore  578  and includes a plurality of spline tabs  580 , a plurality of alignment posts  582 , and a plurality of slides  584 . The bore  578  is configured as a through-hole to receive a portion of the locking member  564 . The spline tabs  580  are included on weight body  570  and configured to interlock with the spline tabs  575  of the weight mount  562  to prevent relative rotation between the weight body  570  and the weight mount  562 . The alignment posts  582  are elongate projections extending from a surface of weight body  570  and are sized to extend through the lock tabs  568  and into the tapered nut  576  to prevent relative rotation between the weight body  570  and the tapered nut  576 . The slides  584  can be elongate rails that extend from a surface of the weight body  570  and radially across the surface. In at least one example embodiment, the slides  584  are dovetail rails that form undercut side edges. The weight body  570  can be constructed of metallic and/or non-metallic materials, and the material can be selected to provide a desired mass. 
     The locking member  564  extends through the bore  578  of the weight body  570 , through a bore  586  of lock tabs  568  and into tapered nut  576 . The locking member  564  is configured to thread into the bore tapered nut  576  so that rotation of the locking member  564  can alter the distance between the tapered nut  576  and the weight body  570 . The locking member  564  includes a head  588 , a shank  590 , and a tool engagement feature  592 . The head  588  is configured to be recessed into a counterbore of the bore  578  of the weight body  570 . The shank  590  includes a threaded coupling portion  594  and a retention portion  596 . The coupling portion  594  threads into tapered nut  576 . The retention portion  596  is coupled to a snap ring  598  to retain the weight body  570  and the tapered nut  576  on the locking member  564 . 
     Similar to previous embodiments, the lock tabs  568  are retained by a spring clip  348  and are slidably coupled to the weight body  570 . Each lock tab  568  includes a tapered abutment portion  600  and an engagement surface  602 . The lock tabs  568  can include a circumferential groove  604  in an outer surface that receives the spring clip  348 , and the spring clip  348  can be configured to act as a spring to alter the radial motion of the lock tabs  568 . The lock tabs  568  include slides  606  that complement the shape of, and are slidably coupled to, the slides  584  of the weight body  570 . Similar to previous embodiments, the slides can be complementary dovetail rails and channels that limit the relative motion between the weight body  570  and the lock tabs  568 . 
     The tapered nut  576  includes a tapered surface  608  and an alignment groove  610 . The tapered surface  608  is configured to abut the tapered abutment portion  600  of the lock tabs  568 . As the locking member  564  is rotated relative to the tapered nut  576 , the distance between the tapered nut  576  and the weight body  570  changes. When the distance is reduced, the tapered surface  608  abuts the tapered abutment portion  600  to force the lock tabs  568  to move radially outward. The alignment groove  610  is shaped and sized to receive the alignment posts  582  of the weight body  570  to prevent relative rotation between the weight body  570  and the tapered nut  576  when the locking member  564  is rotated. 
     The weight member  560  can be converted between the unlocked configuration, shown in  FIG. 62 , and the locked configuration, shown in  FIG. 63 , by operating the locking member  564 . In the unlocked configuration, the lock tabs  568  are retained in a radially inward configuration, such as under the spring force of the spring clip  384 , so that the weight member  560  can be inserted into the cavity of the weight mount  562 . 
     The weight member  560  can be converted to the locked configuration by rotating the locking member  564  so that the tapered nut  576  is drawn toward the weight body  570  and into abutment with the lock tabs  568 . The abutment forces the lock tabs  568  to move radially outward relative to the weight body  570  so that the engagement surface  602  abuts a portion of the flange  572  that forms an undercut  612  to retain the weight member  560  in the weight mount  562 . 
     While it is apparent that the illustrative embodiments of the invention disclosed herein fulfill the objectives of the present invention, it is appreciated that numerous modifications and other embodiments may be devised by those skilled in the art. Additionally, feature(s) and/or element(s) from any embodiment may be used singly or in combination with other embodiment(s) and steps or elements from methods in accordance with the present invention can be executed or performed in any suitable order. Therefore, it will be understood that the appended claims are intended to cover all such modifications and embodiments, which would come within the spirit and scope of the present invention.