Abstract:
A golf club head is presented comprising a sole including a weight member secured to a weight mount. The golf club includes a sole plate portion that includes a weight member attached thereto.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation-in-part of U.S. patent application Ser. No. 14/222,375, filed Mar. 21, 2014, currently pending, which is a continuation of U.S. patent application Ser. No. 13/337,910, filed Dec. 27, 2011, now U.S. Pat. No. 8,684,863, the disclosures of which are incorporated herein by reference in their entireties. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The invention relates to golf clubs, and more particularly, to golf club heads having a removable weight. 
       BACKGROUND OF THE INVENTION 
       [0003]    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. 
         [0004]    Various methods are used to selectively locate mass throughout golf club heads, including thickening portions of the body casting itself or strategically adding 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. 
         [0005]    Alternative approaches for selectively locating mass in a club head utilize composite multi-material structures. These composite structures utilize two, three, or more materials that have different physical properties including different densities. An example of this type of composite club 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 composite materials like those found in the club head must be bonded together, 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. 
         [0006]    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 
       [0007]    The present invention is directed to a golf club head having a portion comprising at least one removable weight member. In an embodiment, a golf club head comprises a hosel, a ball striking face, a sole, a weight mount, a weight body member, and a fastener. The sole extends aftward from a lower edge of the face, and includes a body sole portion and a sole plate portion that form the sole surface as the lowermost surface of the golf club head. The sole plate portion includes a sole plate member coupled to the body sole portion and the sole plate portion forms less than 75% of the sole. The weight mount is disposed in the sole plate member, and is defined by a side wall and a base surface. The side wall extends between the base surface and an adjacent portion of the sole of the golf club head and at least a portion of the side wall is tapered. The weight body member includes a lower surface and a side wall. The fastener couples the weight member to the weight mount. The body sole portion is constructed of a material having a first density, and the sole plate member is constructed of a material having a second density that is greater than the first density. The body sole portion, the sole plate portion and the weight body member collectively form the sole. 
         [0008]    In another embodiment, a golf club head comprises a hosel, a ball striking face, a sole, a weight mount, a weight body member, and a fastener. The sole extends aftward from a lower edge of the face, and includes a body sole portion and a sole plate portion. The sole plate portion includes a sole plate member coupled to the body sole portion, and the sole plate portion forms less than 75% of the sole. The weight mount is disposed in the sole plate member, and is defined by a side wall and a base surface. The side wall extends between the base surface and an adjacent portion of the sole of the golf club head, and at least a portion of the side wall is tapered. The weight body member includes a lower surface and a side wall. The fastener couples the weight member to the weight mount. The sole plate member is disposed in the sole of the golf club head so that the center of gravity of the sole plate member is disposed rearward along a Z-axis from the geometric face center of the ball striking face a distance that is less than 50% of the maximum front to back distance of the golf club head. The body sole portion, the sole plate portion and the weight body member collectively form the sole. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is a perspective view of a golf club head; 
           [0010]      FIG. 2  is a perspective view of an aft portion of a golf club head of the present invention including a removable weight member; 
           [0011]      FIG. 3  is a cross-sectional view of a portion of the golf club head and removable weight member of  FIG. 2 ; 
           [0012]      FIG. 4  is a perspective view of an aft portion of the golf club head of  FIG. 2  without the removable weight member; 
           [0013]      FIG. 5  is a perspective view of an alternative construction of the aft portion of the golf club of  FIG. 4  without a removable weight member; 
           [0014]      FIG. 6  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member of the present invention; 
           [0015]      FIG. 7  is a perspective view of a portion of the golf club head of  FIG. 6  without the removable weight member; 
           [0016]      FIG. 8  is a plan view of an outer side of the removable weight member of  FIG. 6 ; 
           [0017]      FIG. 9  is a plan view of an inner side of the removable weight member of  FIG. 8 ; 
           [0018]      FIG. 10  is a perspective view of an alternative aft portion of a golf club head without the removable weight member; 
           [0019]      FIG. 11  is a plan view of an inner side of a removable weight member constructed to be installed on the golf club head of  FIG. 10 ; 
           [0020]      FIG. 12  is a cross-sectional view of the removable weight member of  FIG. 11 ; 
           [0021]      FIG. 13  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0022]      FIG. 14  is a cross-sectional view of the golf club head and removable weight member of  FIG. 13 ; 
           [0023]      FIG. 15  is another cross-sectional view of the golf club head and removable weight member of  FIG. 13 ; 
           [0024]      FIG. 16  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0025]      FIG. 17  is a cross-sectional view of the golf club head and removable weight member of  FIG. 16 ; 
           [0026]      FIG. 18  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0027]      FIG. 19  is a cross-sectional view of the golf club head and removable weight member of  FIG. 18 ; 
           [0028]      FIG. 20  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0029]      FIG. 21  is an exploded view of the golf club head and removable weight member of  FIG. 20 ; 
           [0030]      FIG. 22  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0031]      FIG. 23  is a plan view of the portion of the golf club head and outer side of the removable weight member of  FIG. 22 ; 
           [0032]      FIG. 24  is another plan view of the portion of the golf club head and outer side of the removable weight member of  FIG. 22 ; 
           [0033]      FIG. 25  is a cross-sectional view of the portion of the golf club head and removable weight member of  FIG. 22 ; 
           [0034]      FIG. 26  is a plan view of another golf club head and removable weight member; 
           [0035]      FIG. 27  is a plan view of a sole, aft portion of the golf club head of  FIG. 26  without the removable weight member; 
           [0036]      FIG. 28  is a plan view of an outer side of the removable weight member of  FIG. 26 ; 
           [0037]      FIG. 29  is a cross-sectional view of a portion of the golf club head of  FIG. 26 ; 
           [0038]      FIG. 30  is a cross-sectional view of a portion of the golf club head, and the removable weight member, of  FIG. 26 ; 
           [0039]      FIG. 31  is a plan view of an aft portion of another golf club head and an outer side of removable weight member; 
           [0040]      FIG. 32  is a plan view of an outer side of the removable weight member of  FIG. 31 ; 
           [0041]      FIG. 33  is a plan view of an inner side of the removable weight member of  FIG. 31 ; 
           [0042]      FIG. 34  is a cross-sectional view of the golf club head and removable weight member of  FIG. 31 ; 
           [0043]      FIG. 35  is a plan view of an inner side of a portion of another golf club head an inner side of a removable weight member; 
           [0044]      FIG. 36  is a cross-sectional view of the golf club head and removable weight member of  FIG. 35 ; 
           [0045]      FIG. 37  is a plan view of an aft portion of another golf club head and an outer side of a removable weight member; 
           [0046]      FIG. 38  is a plan view of the outer side of the removable weight member of  FIG. 37 ; 
           [0047]      FIG. 39  is a side view of a fastener included in the golf club head of  FIG. 37 ; 
           [0048]      FIG. 40  is a cross-sectional view of the golf club head and removable weight member of  FIG. 37 ; 
           [0049]      FIG. 41  is a plan view of an aft portion of another golf club head and an outer side of a removable weight member; 
           [0050]      FIG. 42  is a cross-sectional view of the portion of the golf club head, removable weight member and fastener of  FIG. 41 ; 
           [0051]      FIG. 43  is a plan view of an aft portion of another golf club head and an outer side of a removable weight member; 
           [0052]      FIG. 44  is a cross-sectional view of the portion of the golf club head, removable weight member and fastener of  FIG. 43 ; 
           [0053]      FIG. 45  is an exploded view of a portion of another golf club, removable weight member and fastener; 
           [0054]      FIG. 46  is a cross-sectional view of the portion of another golf club head, removable weight member and fastener of  FIG. 45 ; 
           [0055]      FIG. 47  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member of the present invention; 
           [0056]      FIG. 48  is a cross-sectional view of a portion of the golf club head and removable weight member of  FIG. 47 ; 
           [0057]      FIG. 49  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0058]      FIG. 50  is another perspective view of the aft portion of the golf club head of  FIG. 49  without the removable weight member; 
           [0059]      FIG. 51  is a cross-sectional view of a portion of the golf club head and removable weight member of  FIG. 49 ; 
           [0060]      FIG. 52  is a cross-sectional view of a portion of the golf club head and removable weight member of  FIG. 50 ; 
           [0061]      FIG. 53  is a perspective view of an aft portion of another embodiment of a golf club head including a removable weight member; 
           [0062]      FIG. 54  is a plan view of the portion of the golf club head and outer side of the removable weight member of  FIG. 53 ; 
           [0063]      FIG. 55  is another plan view of the portion of the golf club head and outer side of the removable weight member of  FIG. 53 ; 
           [0064]      FIG. 56  is a cross-sectional view of the portion of the golf club head and removable weight member of  FIG. 53 ; 
           [0065]      FIG. 57  is an exploded view of a portion of another golf club, removable weight member and fastener; 
           [0066]      FIG. 58  is a cross-sectional view of the portion of another golf club head, removable weight member and fastener of  FIG. 57 ; 
           [0067]      FIG. 59  is a plan view of another golf club head and removable weight member; and 
           [0068]      FIG. 60  is a cross-sectional view of the golf club head and removable weight member of  FIG. 59 . 
       
    
    
     DETAILED DESCRIPTION 
       [0069]    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. 
         [0070]    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. 
         [0071]    The golf club head of the present invention is preferably hollow, such as a metal wood type golf club head, but may include any club head type, such as iron-type club heads. The golf club head generally includes a hosel, a hitting face, a crown, a sole, and a skirt that combine to define a hollow interior cavity. 
         [0072]    The inventive golf club head also has a low profiled weight member disposed on a portion of the club head, and preferably on the crown, sole and/or skirt of the golf club head. The embodiments described below are generally illustrated so that the weight member is attached at least partially to the sole for convenience. However, as will be appreciated by a person having ordinary skill, weight mounts and weight members having the same structures as those described may be located on any portion of the golf club head, such as the crown and/or skirt. 
         [0073]    An equivalent plan area (Area EP ) of the weight member is preferably greater than approximately 200 mm 2  where equivalent plan area is: 
         [0000]      Area Ep   =V/T   ave    
         [0000]    where V is the volume of the weight member and T is an average thickness taken generally normal to an outer surface of the weight member and toward the interior of the golf club head. In weight members including an elongate fastener that extends toward an interior of the club head, the average thickness is calculated disregarding the elongate fastener. In each of the embodiments described below, it is preferred that the mass of the weight member range between 2 grams and 30 grams and that the equivalent plan area be greater than approximately 200 mm 2  and even more preferably greater than 250 mm 2 . Also, weight member preferably has an average thickness that is less than about 8 mm, and more preferably less than about 6 mm. 
         [0074]    An exemplary club head is shown  FIGS. 1-4 . Club head  10  includes a sole  12 , a crown  14 , a hitting face  16 , a skirt  18 , a hosel  20 , and a weight member  22 . Sole  12  generally provides the lower surface of golf club head  10  when the club head is placed in an address position. Sole  12  includes a weight mount  24 , which is configured to couple weight member  22  to sole  12 . In the present embodiment, mount  24  is a recessed portion of sole  12  that is shaped to complement the shape of weight member  22 . For example, weight member  22  is generally trapezoidal in plan shape and weight mount  24  includes a generally trapezoidally-shaped recess. 
         [0075]    Mount  24  includes a fastener  26 , a bevel  28  and a receiver  30 . Mount  24  is constructed to clamp weight member  22  between bevel  28  and fastener  26 . In particular, mount  24  is constructed so that when weight member  22  is located on mount  24 , and fastener  26  is tightened, fastener  26  forces weight member  22  at least partially laterally against bevel  28 . As a result, a portion of weight member  22  is drawn tighter against sole  12  by the interaction between the weight member and the bevel. 
         [0076]    In the present embodiment, receiver  30  is a recessed portion of sole  12  and skirt  18  and aligns weight member  22  relative to the remainder of the golf club head when weight member  22  is disposed in mount  24 . Receiver  30  includes a fastener portion  32  and a support portion  34 . Fastener portion  32  includes a threaded bore  36  that receives a threaded shank  38  of fastener  26 . Support portion  34  includes a generally planar support surface  35  that extends between fastener portion  32  and bevel  28  and provides support for weight member  22  when weight member  22  is disposed in receiver  30 . The recessed configuration of receiver  30  also limits the movement of weight member  22  laterally relative to bevel  28 . 
         [0077]    Bevel  28  forms an undercut portion of mount  24  that receives a portion of weight member  22 . Bevel  28  extends from support surface  35  at a location that is spaced from fastener  26  and is angled relative to support surface  35  by a bevel angle α that is an acute angle. Bevel angle α is acute so that as weight member  22  is forced into bevel  28 , weight member  22  is forced against support surface  35 . Bevel angle α is preferably between about 25° and about 65°, and more preferably between about 35° and about 55° relative to support surface  35 , and in particular relative to a planar portion of support surface  35  that is adjacent a base  29  of bevel  28 . 
         [0078]    Weight member  22  includes an angled abutment surface  42  and a fastener engagement feature  43 . Angled abutment surface  42  is a surface that complements the shape of bevel  28  of mount  24  and that abuts bevel  28  when weight member  22  is installed on mount  24 . Bevel  28  and abutment surface  42  are angled so that as weight member  22  is forced into abutment with bevel  28  a force component along the abutting surfaces causes weight member  22  to slide against bevel  28  and to be forced against sole  12 . 
         [0079]    Fastener  26  is oriented so that as it is tightened in club head  10  it forces weight member  22  toward bevel  28 . Threaded bore  36  is angled relative to support surface  35  so that interaction between fastener  26  and weight member  22  causes weight member  22  to move laterally, generally parallel to support surface  35 , when fastener  26  is tightened. Fastener  26  engages club head  10  at a coupling angle β, relative to support surface  35 , which has a magnitude that is less than 90° so that at least a component of the force applied by tightening fastener  26  is directed toward bevel  28 , as shown by force component Fz. Preferably, coupling angle is less than 45° so that the Fz forms a larger force component than Fy, which is generally normal to support surface  35 . 
         [0080]    Mount  24  is preferably located in an aft portion of club head  10  so that weight member  22  is positioned behind and below the center of gravity of club head  10  without weight member  22 . The inclusion of weight member  22  in this location aids in moving the center of gravity of the club head rearward and lower than the club head without the weight member. 
         [0081]    Referring to  FIG. 5 , another embodiment of a mount  44  will be described. Mount  44  is similar to mount  24  of the previous embodiment, but does not include a recess for receiving the weight member so that a support surface  50  is flush with the laterally adjacent portions  51  of the sole. Mount  44  is configured to clamp weight member  22  (illustrated by dashed lines) between a bevel  48  and a fastener  46 . In particular, when weight member  22  is located on mount  44 , and fastener  46  is tightened, the interaction between fastener  46  and weight member  22  forces weight member  22  at least partially laterally and against bevel  48 . Forcing weight member  22  against bevel  48  causes weight member  22  to slide along bevel  48  and into the undercut formed by bevel  48  so that weight member  22  is forced against support surface  50 . As a result, weight member  22  is forced tightly against sole  12  by the angled interface interaction between the weight member and the bevel. 
         [0082]    Mount  44  includes fastener  46 , bevel  48 , support surface  50  and a fastener portion  52 . A portion of the club head body defines bevel  48 , support surface  50  and fastener portion  52 . Support surface  50  extends between bevel  48  and fastener portion  52  and is a surface that abuts the underside of weight member  22  when it is installed in mount  44 . Support surface  50  may be a generally planar surface, as shown, so that it complements a generally planar abutment surface of the weight member. Fastener portion  52  includes a threaded bore  54  that receives a threaded shank  56  of fastener  46 . 
         [0083]    Similar to the previous embodiment, bevel forms an undercut portion that receives a portion of the weight member. Bevel  48  extends outward from sole  12  and support surface  50  at a location that is spaced from fastener  46 . Bevel  48  is angled relative to support surface  50  by a bevel angle α that is acute relative to support surface  50 . 
         [0084]    Mount  44  also includes lateral walls  58  that are located adjacent bevel  48 . Lateral walls  58  extend toward fastener portion  52  and form alignment features for weight member  22  when it is disposed on mount  44 . In particular, lateral walls limit relative lateral motion between weight member  22  and bevel  48  so that the portion of weight member  22  that engages bevel  48  remains in contact with bevel  48  when it is installed. Lateral walls  58  extend outward and away from support surface  50  so that they are raised relative to the support surface  50 . The height of lateral walls  58  is preferably less than, or equal to, the height of bevel  48  from support surface  50 . For example, lateral walls  58  have a height relative to support surface  50  that is about 25%-100% of the height of bevel  48 . Preferably, the height of lateral walls  58  is about 50% of the height of bevel  48 . 
         [0085]    Referring now to  FIGS. 6-9 , another embodiment of a golf club head including a weight will be described. Golf club head  60  includes a sole  62 , a crown  64 , a hitting face, a skirt  68 , a hosel, and a weight member  72 . Sole  62  includes a weight mount  74 , which is configured to couple weight member  72  to the club head. In the present embodiment, mount  74  is constructed flush with adjacent portions of sole  62  (i.e., not recessed), so that an abutment surface  76  of weight member  72  is approximately flush with the adjacent portions of sole  62 . 
         [0086]    Mount  74  generally includes fastener  78 , bevel  80 , a support surface  82  and a fastener portion  84 . A portion of the club head body defines bevel  80 , support surface  82  and fastener portion  84 . A portion of sole  62  that extends between bevel  80  and fastener portion  84  forms support surface  82 . Support surface  82  is generally illustrated by the dashed line, but is contiguous with the adjacent portions of sole  62 . Support surface  82  is shaped to complement abutment surface  76  of weight member  72  so that it abuts the underside of weight member  72  when the weight member is installed in mount  74 . Fastener portion  84  includes a threaded bore  86  that receives a threaded shank  88  of fastener  78 . Fastener  78  extends into skirt  68  so that as it is tightened in threaded bore  86  it translates generally toward bevel  80 . As a result, when weight member  72  is installed and fastener  78  is tightened, the weight member is translated toward bevel  80  and into the undercut formed by bevel  80 . 
         [0087]    In the present embodiment, mount  74  includes an alignment feature in the form of tab  90  that interacts with weight member  72 . Tab  90  is constructed as a tapered rib that extends aft-ward from bevel  80  toward fastener portion  84  and outward from support surface  82 . Tab  90  tapers so that it narrows in the direction from bevel  80  toward fastener portion  84  and outward from support surface  82 . 
         [0088]    Weight member  72  includes an angled abutment surface  92  and a fastener engagement feature  94 . Additionally, weight member  72  includes an alignment feature in the form of slot  96  that receives tab  90  when weight member  72  is installed on mount  74 . Slot  96  is dimensioned so that as it receives tab  90  the tapered surfaces abut and limit relative movement between weight member  72  and the remainder of club head  60  while still allowing angled abutment surface  92  to slide along bevel  80 . In particular as weight member  72  slides against bevel  80  it abuts tab  90 . The interaction between the tapered tab  90  and the tapered slot  96  limits the amount that weight member  72  is able to slide against bevel  80  toward sole  62  and also limits relative lateral motion, i.e., relative motion generally in the heel-to-toe direction, between weight member  72  and bevel  80 . 
         [0089]    Angled abutment surface  92  is a surface that complements the shape of bevel  80  of mount  74  and that abuts bevel  80  when weight member  72  is installed on mount  74 . Bevel  80  and abutment surface  92  are oriented so that as weight member  72  is forced into abutment with bevel  80  by the tightening of fastener  78 , the abutment forces weight member  72  against sole  62 . 
         [0090]    Slot  96  is defined by weight member  72  and extends through a portion of angled abutment surface  76 . In the present embodiment, the height of slot  96  is less than the thickness of weight member  72  so that it does not extend through the outer surface of weight member  72 . As a result, and as shown in  FIG. 6 , neither slot  96  nor tab  90  are visible when weight member  72  is installed in club head  60 . 
         [0091]    Another embodiment is illustrated in  FIGS. 10-12 , and includes a golf club head  100  that includes a weight member  102 . The appearance of the mounted weight member  102  is nearly identical to the appearance of the golf club of  FIG. 6 , so the mounted weight member  102  is only illustrated in phantom in  FIG. 10 . In this embodiment, golf club head  100  has a structure similar to that of the previous embodiment with the exception of the alignment feature. In particular, weight member  102  has a structure similar to that of the previous embodiment, but the associated alignment feature is shaped and sized to complement the alignment feature of the weight mount included on golf club head  100 . 
         [0092]    Golf club head  100  includes a sole  104 , a crown  106 , a hitting face, a skirt  108 , a hosel, and weight member  102 . Sole  104  includes a weight mount  109 , which is configured to couple weight member  102  and sole  104 . In the present embodiment, mount  109  has a structure similar to that of the previous embodiment. However, the alignment feature has been modified. In particular, mount  109  generally includes fastener  110 , bevel  112 , a support surface  114  and a fastener portion  116 . 
         [0093]    The alignment feature has been modified to reduce the constraints placed on weight member  102  relative to mount  109  by the interaction between the alignment feature and weight member  102 . Namely, the alignment feature is configured to control only lateral movement of weight member  102  relative to mount  109  and so that the construction of the alignment features is simplified. Mount  109  includes an alignment feature in the form of tab  118 . Tab  118  is constructed as a straight rib that extends aft-ward from bevel  112  toward fastener portion  116 , and outward from support surface  114 . Tab  118  includes generally parallel sidewalls so that the width of tab  118  remains approximately constant over the length of tab  118 . 
         [0094]    Weight member  102  includes an angled abutment surface  120 , a fastener engagement feature  122 , and an alignment feature in the form of slot  124 . Slot  124  engages tab  118  when weight member  102  is installed on mount  109  and is dimensioned so that its width closely matches the width of tab  118 . As a result, the engagement of slot  124  and tab  118  limits lateral movement of weight member  102  relative to the remainder of club head  100 . Angled abutment surface  120  is a surface that complements the shape of bevel  112  (i.e., the angled abutment surface of bevel  112 ) of mount  109  and that abuts bevel  112  when weight member  102  is installed on mount  109 . Similar to previous embodiments, bevel  112  and abutment surface  120  are oriented so that as weight member  102  is forced into abutment with bevel  112 , by the tightening of fastener  110 , weight member  102  is forced against sole  104  in mount  109 . 
         [0095]    In a similar embodiment, illustrated in  FIGS. 47 and 48 , a golf club head  500  includes a sole  504 , a crown  506 , a hitting face, a skirt  508 , a hosel, and a weight member  502 . Sole  504  includes a weight mount  509 , which is configured to couple weight member  502  and sole  504 . Mount  509  generally includes a fastener  510 , a bevel  512 , a support surface  514  and a fastener portion  516 . 
         [0096]    Mount  509  includes an alignment feature in the form of tab  518  that interacts with weight member  502 . Tab  518  is constructed as a rib with generally parallel lateral sides that extends aft-ward from bevel  512  toward fastener portion  516  and outward from support surface  514 . 
         [0097]    Weight member  502  includes an angled abutment surface  520  and a fastener engagement feature  522 . Weight member  502  includes an alignment feature in the form of slot  524  that receives tab  518  when weight member  502  is installed on mount  509 . Slot  524  is dimensioned so that as it receives tab  518  the side surfaces of the tab and slot are in close proximity to each other and preferably slide against each other to limit relative lateral movement between weight member  502  and the remainder of club head  500  while still allowing angled abutment surface  520  to slide along bevel  512 . The height from support surface of tab  518  and slot  524  are selected so that clearance is provided between the tab and the weight member and the length from bevel  512  of tab  518  and slot  524  are selected so that clearance is provided between the aftward end of tab  518  and slot  524 . As a result of those clearances, the interaction of tab  518  and slot do not limit the interaction between angled abutment surface  520  and bevel  512 . 
         [0098]    Angled abutment surface  520  is a surface that complements the shape of bevel  512  of mount  509  and that abuts bevel  512  when weight member  502  is installed on mount  509 . Bevel  512  and abutment surface  520  are oriented so that as weight member  502  is forced into abutment with bevel  512  by the tightening of fastener  510 , the abutment forces weight member  502  against sole  504 . 
         [0099]    Slot  524  is defined by weight member  502  and extends through a portion of angled abutment surface  520 . In the present embodiment, the height of slot  524  is less than the thickness of weight member  502  so that it does not extend through the outer surface of weight member  502 . As a result, and as shown in  FIG. 47 , neither slot  524  nor tab  518  are visible when weight member  502  is installed in club head  500 . 
         [0100]    A portion of sole  504  that extends between bevel  512  and fastener portion  516  forms support surface  514 . Support surface  514  is shaped to abut the underside of weight member  502  when the weight member is installed in mount  509 . Fastener portion  516  includes a fastener post  526  that is received by fastener  510 . In the present embodiment, fastener  510  is a threaded nut that receives a threaded portion of fastener post  526 , rather than a threaded bolt like previous embodiments, to illustrate an alternative fastener that may also be substituted in other embodiments. As fastener  510  is tightened on fastener post  526  and against weight member  502 , weight member  502  is forced to translate toward bevel  512  and into the undercut formed by bevel  512 . 
         [0101]    Referring now to  FIGS. 13-15 , another embodiment of a golf club head  130  with a weight member  132  is illustrated. The portion of golf club head  130  that is shown includes a sole  134  and a skirt  136 . Weight member  132  is installed in a weight mount  138  that extends across a portion of sole  134  and a portion of skirt  136 . 
         [0102]    Mount  138  includes a bevel  140 , a support surface  142 , a fastener portion  144  and a fastener  146 . Bevel  140  is disposed at an end of mount  138  and includes an angled surface  148  that forcibly abuts an angled engagement surface  149 , which is may be a planar surface, of weight member  132  when the weight member is fully installed on mount  138 . In the illustrated embodiment, weight member  132  includes angled engagement surfaces  149  at opposite ends so that weight member  132  may be installed in one of two orientations rotated  180 ° relative to each other. 
         [0103]    In the present embodiment, mount  138  includes a contoured support surface  142  to simplify the removal of weight member  132  from mount  138 . The contoured support surface  142  generally includes an abutment portion  150  that is located adjacent bevel  140 , and a recessed portion  152 . Abutment portion  150  provides a surface that limits the translation of weight member  132  toward the remainder of the golf club head when one of the angled abutment surfaces  149  is forced against bevel  148 . 
         [0104]    Recessed portion  152  permits weight member  132  to be tilted relative to mount  138  during its insertion and removal, as shown in  FIG. 15 . In particular, the ability to tilt weight member  132  assists in its removal from mount  138  and so that fastener  146  need not be fully removed during insertion and removal of weight member  132 . Recessed portion  152  is disposed between abutment portion  150  and fastener portion  144  and extends toward the interior of club head  130  relative to abutment portion  150 . Recessed portion  152  is sized and located in mount  138  so that weight member  132  covers recessed portion  152  when it is installed in mount  138 . Recessed portion  152  may be stepped, curved or tapered to provide any desired amount of movement of weight member  138  and the desired amount of clearance relative to fastener. Recessed portion may also be configured to receive an optional secondary weight member  151 . It should be appreciated, however, that an optional secondary weight member may be included in any of the embodiments described and shown herein. For example, any of the other embodiments may include a secondary weight member mounted in the support surface of the mount. 
         [0105]    All of the weight members of the present invention are preferably removable from the golf club head without requiring the full disengagement of the fastener from the fastener portion of the mount. For example, in the present embodiment, fastener  146  is partially backed out from fastener portion  144 , which provides clearance for weight member  132  to be slid toward fastener  146  within mount  138 , tilted, and then removed from mount  138 . The shape and dimensions of recessed portion  152  are selected so that weight member  132  may be removed after backing fastener  146  out by a predetermined amount. In an embodiment, recessed portion  152  is dimensioned and shaped so that weight member  132  may be removed after backing the fastener out by less than 0.250 inch, more preferably by less than 0.125 inch. 
         [0106]    One or more grip features  154  are also included on weight member  132 . Grip feature  154  provides a recessed, or raised, portion on weight member  132  that allows a user to grip the weight member, especially during removal. Grip feature  154  is preferably sized and shaped to engage with a user&#39;s fingertip, or another blunt tool to drag and tilt the weight member relative to the remainder of club head  130 . 
         [0107]    In another embodiment, shown in  FIGS. 16 and 17 , a golf club head  160  includes a weight member  162  that is retained on club head  160  using a fastener  164  and a retainer  166 . Similar to the previous embodiments, golf club head  160  includes a sole  168 , a crown  170 , a hitting face, a skirt  172 , a hosel, and weight member  162 . Sole  168  includes a weight mount  174 , which is configured to couple weight member  162  and sole  168 . 
         [0108]    Mount  174  generally includes fastener  164 , a bevel  178 , a support surface  180  and a fastener portion  182  and is recessed into a portion of club head  160  that extends from sole  168  to skirt  172 . A portion of the club head body defines bevel  178  that extends outward from support surface  180  at a location that is spaced from fastener  164 . Bevel  178  is angled relative to a portion support surface  180  immediately adjacent bevel  178  by a bevel angle α. Preferably, bevel angle α is acute relative to support surface  180 . 
         [0109]    Support surface  180  extends between bevel  178  and fastener portion  182  and is a generally curved surface that abuts the underside of weight member  162  when it is installed in mount  164 . Fastener portion  182  includes a threaded bore  184  that receives a threaded shank  186  of fastener  164 . 
         [0110]    Weight member  162  includes an angled abutment surface  188  and a retainer engagement feature  190 . The outer perimeter of weight member  162  acts as an alignment feature and complements the size and shape of the recessed mount  174 . Angled abutment surface  188  is a surface that complements the shape of bevel  178  of mount  174  and that abuts bevel  178  when weight member  162  is installed on mount  174 . Bevel  178  and abutment surface  188  are oriented so that as weight member  162  is forced into abutment with bevel  178  by the tightening of fastener  164  and retainer  166 . The abutment of the angled surfaces forces weight member  162  to be drawn against support surface  180  in mount  174 . 
         [0111]    Another embodiment of a golf club head  200  with a weight member  202  is illustrated in  FIGS. 18 and 19 . Similar to the previous embodiment, weight member  202  is retained on club head  200  by a retainer  204 . Retainer  204  is a component that is separate from weight member  202  and forces weight member  202  to abut an undercut  206  included in a weight mount  208 . Undercut  206  is illustrated with an alternative construction, but it should be appreciated that the undercut may alternatively be formed by a bevel. Mount  208  is configured so that as retainer  204  is drawn into mount  208  by a fastener  218  the retainer  204  abutment with weight member  202  forces the weight member toward undercut  206   
         [0112]    Mount  208  includes a weight portion  209  and a retainer portion  211 . Weight portion  209  receives weight member  202  and includes undercut  206 . Retainer portion  211  receives retainer  204  and includes a fastener engagement feature  213  that engages fastener  218  so that retainer  204  is removably coupled to club head  200 . 
         [0113]    Weight member  202  has a low profile configuration similar to previous embodiments. Weight member  202  includes an angled abutment surface  210  and a retainer engagement feature  212 , which may be a flange, as shown. Angled abutment surface  210  engages an abutment edge  214  of mount  208  that is adjacent undercut  206 , and undercut  206  is dimensioned so that as angled abutment surface  210  is forced against abutment edge  214 , clearance is provided for a portion of weight member  202  to enter undercut  206  while weight member  202  is forced tighter against a support surface  216  of mount  208 . 
         [0114]    Retainer  204  also has a low profile configuration and is received in a portion of mount  208 . Retainer  204  extends toward weight member  202  so that an abutment flange  220  of retainer  204  abuts a portion of weight member  202 . Retainer  204  also includes a fastener bore  222  that receives fastener  218  so that fastener  218  extends through a portion of retainer  214  and engages fastener engagement feature  213 , which may be a threaded bore, as shown. 
         [0115]    In another embodiment, illustrated in  FIGS. 49-52 , a golf club head  540  includes a weight member  542  that is retained on club head  540  by a retainer  544 . Golf club head  540  includes a sole  546 , a crown  548 , a hitting face, a skirt  550 , a hosel, and weight member  542 . Sole  546  includes a weight mount  552 , which is configured to couple weight member  542  and sole  546 . Mount  552  generally includes a fastener  554 , a bevel  556 , a support surface  558  and a fastener portion  560 . 
         [0116]    Retainer  544  is a component that is separate from weight member  542  that is pivotally mounted to sole  546  of golf club head  540  at pivots  568 . Retainer  544  forces weight member  542  to abut an undercut formed by bevel  556 . Mount  552  is configured so that tightening fastener  554  forces retainer  544  toward sole  546  and against an aft portion of weight member  542 . The interaction between retainer  544  and weight member  542  forces weight member  542  forward toward and into abutment with bevel  556 . 
         [0117]    Weight member  542  has a low profile configuration similar to previous embodiments. Weight member  542  includes an angled abutment surface  562  and a retainer engagement feature  564 , which may be an angled surface, as shown. Angled abutment surface  562  engages bevel  556  when retainer  544  is forced against weight member  542 . Additionally, and as shown, retainer engagement feature  564  may have the same shape and size as angled abutment surface  562  so that weight member  542  may be installed in one of two orientations rotated 180° from each other. Preferably, in such an embodiment more mass is concentrated toward one of angled abutment surface  562  and retainer engagement feature  564  than the other so that the two orientations provide different mass distribution. 
         [0118]    Retainer  544  is pivotally connected to sole  546  adjacent to support surface  558  so that it may be pivoted between a first position and a second position. In the first position, shown in  FIGS. 49 and 51 , retainer  544  is positioned so that weight member  542  is interposed between retainer  544  and bevel  556 . In that position, an abutment surface  566  of retainer  544  abuts the angled surface that forms the retainer engagement feature  564  and that abutment forces weight member  542  laterally toward bevel  556 . In the second position, shown in  FIGS. 50 and 52 , retainer  544  is tilted away from support surface  558  and provides clearance for weight member  542  to be translated away from bevel  556  and removed from weight mount  552 . 
         [0119]    In another embodiment, shown in  FIGS. 20 and 21 , golf club head  230  includes a weight member  232  that is coupled to the club head by a retainer  234 . Retainer  234  also provides a cover for weight member  232  so that the shape and appearance of the outer surface of golf club head  230  remains the same while one of a plurality of weight members  232  having different masses or configurations may be incorporated. 
         [0120]    Additionally, an alternative fastener configuration is included in the present embodiment. In particular, a weight mount  236  includes a stud  238  that extends through weight member  232  and retainer  234 , and engages a nut  240 . Nut  240  is removably attached to stud  238  so that it forces retainer  234  against weight member  232  and into mount  236 . 
         [0121]    Mount  236  is shaped to complement the shape of weight member  232  and is generally recessed into a portion of a sole  231  and a skirt  233  of golf club head  230 . Mount  236  includes a primary recess  242  and a secondary recess  244 . Primary recess  242  is shaped to complement the perimeter shape of weight member  232  and retainer  234  so that both fit inside mount  236 . Secondary recess  244  is shaped and sized to receive an optional projection  246  included on weight member  232 . The size and shape of projection  246  is selected based on the overall desired mass of weight member  232 . The location of weight member  232  is determined by the interaction between weight member  232  and primary recess  242 . As a result, projection  246  may either fully or partially extend into secondary recess  244 . 
         [0122]    An optional cap  248  is also included in the present embodiment. Cap  248  provides a cover for nut  240 . By covering nut  240 , cap  248  provides a secondary locking feature to nut  240  and/or protection to nut  240 . 
         [0123]    Referring to  FIGS. 22-25 , a golf club head  260  includes a low profile weight member  262 . In the present embodiment, weight member  262  is shaped so that it must be in a predetermined orientation relative to a mount  264  for it to be inserted into mount  264 , then the weight member trapped in the mount by rotating the weight member relative to the mount. In particular, a first width W1 of weight member  262  is less than a second width W2 of weight member  262 . Mount  264  includes an opening  266  that has a width W3 that is greater than first width W1 of weight member  262 , but less than second width W2. As a result, weight member  262  may be slid into mount  264  only in a predetermined orientation corresponding to the first width W1 extending across opening  266 . Then, by rotating weight member  262  within mount  264  the weight member becomes captured in mount  264 . A tool engagement feature  276  may be included on weight member  262  so that weight member  262  may be rotated using a tool that is inserted into tool engagement feature  276 , such as a hex key or screw driver. 
         [0124]    Mount  264  also includes an undercut  268  that extends around at least a portion of the perimeter of mount  264 . In the present embodiment, undercut  268  is a bevel that receives an angled engagement surface  270  of weight member  262 . The interaction between undercut  268  and engagement surface  270  limits translation of the weight member  262  relative to mount  264  outward and away from club head  260  while allowing weight member  262  to rotate within mount  264  so that weight member  262  may be installed and removed from mount  264 . Preferably, undercut  268  and engagement surface  270  are located on weight mount  264  and weight member  262  so that when weight member  262  is installed the undercut and engagement surface engage adjacent opening  266 . More preferably, undercut  268  and engagement surface  270  extend around a majority of the circumferences of mount  264  and weight member  262 . 
         [0125]    An anti-rotation and clamping feature, such as screw  272  is also included in mount  264  that engages a recess  274  so that the rotation of weight member  262  in mount  264  may be selectively prevented, or limited to a predetermined amount. The anti-rotation feature is constructed so that when screw  272  engages recess  274  of weight member  262 , it locks weight member  262  into a particular orientation relative to mount  264  that is different than the orientation that allows weight member  262  to be removed from mount  264 . Additionally, screw  272  is oriented so that it urges weight member  262  toward a side of mount  264  so that angled engagement surface  270  abuts a portion of undercut  268 . The orientation of screw  272  illustrated in  FIGS. 22-24  results in screw  272  forcing weight member  262  toward opening  266  so that the portions of undercut  268  adjacent opening  266  abut corresponding portions of engagement surface  270 . 
         [0126]    Screw  272  may lock weight member  262  into one of a plurality of orientations by selectively engaging one of a plurality of recesses  274 , or it may limit the rotation of weight member  262  relative to mount  264  to a predetermined range of angular rotation by selectively an extended recess  274   a  that extends along a portion of the perimeter of weight member  262 . 
         [0127]    Referring to  FIGS. 23 and 24 , the orientations of weight member  262  for installation and removal will be described. Weight member  262  is illustrated fully installed in mount  264  in  FIG. 23 . Weight member  262  is inserted into mount  264  by orienting weight member  262  so that the portion of weight member  262  having width W1 is oriented across opening  266 , as shown in  FIG. 24 . Then, weight member  262  is slid into mount  264 , relative to club head  260 , until an end of weight member  262  is adjacent screw  272  with screw  272  being at least partially backed out of mount  264 . Weight member  262  is rotated to a fully installed orientation in which it is oriented so that screw  272  is aligned with a recess  274 . Screw  272  is then tightened so that it is positioned partially within recess  274  and further rotation of weight member  262  within, and relative to, mount  264  is prevented. 
         [0128]    The removal of weight member  262  is accomplished by reversing the installation procedure described above. In particular, screw  272  is disengaged from recess  274  so that weight member  262  is free to rotate within mount  264 . Next, weight member  262  is rotated so that a portion of weight member  262  that is narrower than opening  266  (e.g., a portion with width W1) is aligned with opening  266 . Finally, weight member  262  is slid through opening  266  and removed from mount  264 . 
         [0129]    In another embodiment, illustrated in  FIGS. 53-56 , a golf club head  580  includes a weight member  582  that is inserted and removed from a weight mount  584  similar to the weight member of the previous embodiment. As a result, many of the features of the golf club head are identical and will be designated by the same numbers used in the previous embodiment and will not be further described. 
         [0130]    Weight member  582  has a low profile and is shaped so that it must be in a predetermined orientation relative to a mount  584  for it to be inserted into mount  584 , then the weight member trapped in the mount by rotating the weight member relative to the mount. In particular, a first width W1 of weight member  582  is less than a second width W2 of weight member  582 . Mount  584  includes an opening  266  that has a width W3 that is greater than first width W1 of weight member  582 , but less than second width W2. As a result, weight member  582  may be slid into mount  584  only in a predetermined orientation corresponding to the first width W1 extending across opening  266 . Then, by rotating weight member  582  within mount  584  the weight member becomes captured in mount  584 . 
         [0131]    Mount  584  includes an undercut  268  and an anti-rotation and clamping feature. Undercut  268  receives an angled engagement surface  270  of weight member  582 . An anti-rotation and clamping feature, such as tab  586  is also included in mount  584  that engages a recess  588  so that the rotation of weight member  582  in mount  584  may be selectively prevented, or limited to a predetermined amount. Tab  586  is coupled to the sole of the club head adjacent weight mount  584  by a fastener so that tab can be tightened into an adjacent recess  588  of weight member  582 . The anti-rotation feature is constructed so that when tab  586  engages recess  588  of weight member  582 , it locks weight member  582  into a particular orientation relative to mount  584  that is different than the orientation that allows weight member  582  to be removed from mount  584 . Tab  586  may lock weight member  582  into one of a plurality of orientations by selectively engaging one of a plurality of recesses  588 , or it may limit the rotation of weight member  582  relative to mount  584  to a predetermined range of angular rotation by selectively an extended recess  588   a  that extends along a portion of the perimeter of weight member  582 . 
         [0132]      FIGS. 54 and 55  illustrate the orientations of weight member  582  for installation and removal. In particular, weight member  582  is illustrated fully installed in mount  584  in  FIG. 54 . Weight member  582  is inserted into mount  584  by orienting weight member  582  so that the portion of weight member  582  having width W1 is oriented across opening  266 , as shown in  FIG. 55 . Then, weight member  582  is slid into mount  584 , relative to club head  580 , until an end of weight member  582  is adjacent tab  586  with tab  586  being rotated away from weight member  582 . Weight member  582  is rotated to a fully installed orientation in which it is oriented so that tab  586  is aligned with a recess  588 . Tab  586  is then tightened so that it is positioned partially within recess  588  and further rotation of weight member  582  within, and relative to, mount  584  is prevented. 
         [0133]    The removal of weight member  582  is accomplished by reversing the installation procedure described above. In particular, tab  586  is disengaged from recess  588  so that weight member  582  is free to rotate within mount  584 . Next, weight member  582  is rotated so that a portion of weight member  582  that is narrower than opening  266  (e.g., a portion with width W1) is aligned with opening  266  and weight member  582  is slid through opening  266  and removed from mount  584 . 
         [0134]    Another embodiment will be described with reference to  FIGS. 26-30 . In particular, a golf club head  280  includes a sole  282 , a crown (not shown), a hitting face (not shown), a skirt  284 , a hosel  286 , and a weight member  288 . Sole  282  includes a weight mount  290 , which is configured to couple weight member  288  to sole  282 . In the present embodiment, mount  290  is a recessed portion of sole  282  that is shaped to complement the shape of weight member  288 . For example, weight member  288  is generally trapezoidal in plan shape and weight mount  290  includes a generally trapezoidally-shaped recess. 
         [0135]    Mount  290  is configured to clamp weight member  288  between a conical bevel  292  and a fastener  294 . The conical bevel  292  provides lateral, heel-toe positioning in addition to fore-aft positioning of weight member  288  relative to mount  290 . Mount  290  is configured so that when weight member  288  is located on mount  290 , and fastener  294  is tightened, the interaction between fastener  294  and weight member  288  results in forces that translate weight member  288  laterally against bevel  292 . The interaction between weight member  288  and bevel  292  causes at least a portion of weight member  288  to be drawn tighter against a support portion  298 . 
         [0136]    In the present embodiment, mount  290  is partially recessed and extends into a portion of sole  282  and skirt  284 . Mount  290  is shaped to complement the shape of weight member  288  so that it provides alignment for weight member  288 . Mount  290  includes a fastener portion  296  and support portion  298 . Fastener portion  296  includes a threaded bore  300  that receives a threaded shank of fastener  294 . Support portion  298  is a generally planar surface that extends between fastener portion  296  and bevel  292  and provides support for weight member  288 . 
         [0137]    Bevel  292  extends from support portion  298  at a location that is spaced from fastener  294 . Bevel  292  is angled relative to support portion  298  by a bevel angle α that is preferably acute relative to support portion  298 . The conical bevel  292  also provides an efficient construction for manufacture. For example, bevel  292  may be constructed using a single pass of a dovetail-type cutter, as shown by phantom lines in  FIG. 27  and in  FIG. 29 . 
         [0138]    Weight member  288  has a low profile configuration and includes an angled abutment surface  304  and a fastener engagement feature  306 . Angled abutment surface  304  is a surface that complements the shape of bevel  292  of mount  290  and that abuts bevel  292  when weight member  288  is installed on mount  290 . Bevel  292  and abutment surface  304  are oriented so that as weight member  288  is forced into abutment with bevel  292 , that abutment forces weight member  288  to be drawn tighter against sole  282  in mount  290 . 
         [0139]    Fastener  294  is configured so that it forces weight member  288  toward bevel  292  as it is tightened in club head  280 . In the present embodiment, the shape of fastener  294  and the configuration of engagement between fastener  294  and weight member  288  are selected so that weight member  288  is forced into bevel  292 . Fastener  294  includes a threaded shank  308  that engages a threaded bore  300  of mount  290 . In the present embodiment, instead of utilizing the angle of fastener to drive weight member  288  toward bevel  292 , the mating configuration of fastener with weight member  288  is utilized. Threaded bore  300  extends into fastener portion  296  of mount  290  and is oriented so that it is about normal to support portion  298 . Fastener  294  includes a tapered engagement portion that abuts a tapered portion  310  of weight member  288 . The angled interaction between the fastener and the weight member forces the weight member toward bevel  292  so that weight member  288  becomes captured on sole  282 . Fastener  294  engages club head  280  at a coupling angle β, that has a magnitude that is about 90° and the tapered portion of the fastener provides a component of force that is directed toward bevel  28  as fastener  26  is tightened. 
         [0140]    Bevel angle α is selected so that as weight member  288  is forced into bevel  292 , weight member  288  is forced against support portion  298  and tighter against sole  282 . Bevel angle α is preferably 25°-65°, and more preferably 35°-55°. 
         [0141]    In a still further embodiment, illustrated in  FIGS. 31-34 , golf club head  320  includes a sole  322 , a crown, a hitting face, a skirt  324 , a hosel, and a weight member  326 . Weight member  326  is attached to club head  320  at a weight mount  328 . Weight member  326  and mount  328  are shaped and sized to complement each other and so that relative rotation is limited. For example, weight member  326  has a generally polygonal shape and mount  328  has a matching shape and is recessed into sole  322  so that when weight member  326  is installed it is prevented from rotation relative to mount  328 . 
         [0142]    Weight member  326  includes a weight body  330  that defines a fastener bore  332  and pads  334  that extend from a lower surface of weight body  330 . Fastener bore  332  receives a fastener  336  that extends through weight body  330  and into an engagement feature included in mount  328 , such as threaded bore  338 . A plurality of pads  334  are disposed on weight body  330  and extend from the lower surface of body  330  by a length L. Fastener bore  332  is located within a polygonal area that is defined by a polygon drawn so that each pad  334  forms a vertex of the polygon. For example, and as illustrated in  FIG. 33 , weight member  326  includes three (3) pads  334  that define a triangle (illustrated by the shaded area) and fastener bore  332  is located within an area circumscribed by that triangle. 
         [0143]    Pads  334  are included on weight member  326  so that weight member  326  is able to flex during insertion. In particular, fastener  336  extends through fastener bore  332  and engages threaded bore  338 . As fastener  336  is tightened, weight member  326  is drawn into mount  328 . Pads  334  contact a support surface  340  of mount  328 . As fastener  336  is tightened further, it causes weight member  326  to flex (shown by dashed lines in  FIG. 34 ), which increases the load on fastener  336  and helps to assure that fastener  336  does not loosen during impact. The height and distance between pads  334  is selected to provide the desired flex of weight member  326  and load on fastener  336 . In an embodiment, the height of pads  334  is between about 0.030 inch and about 0.125 inch. Preferably, the pads are dimensioned so that a majority of a bottom surface of the weight member is spaced from the support surface by a distance approximately equal to the pad height. 
         [0144]    In another embodiment, shown in  FIGS. 35 and 36 , a weight member  354  is coupled to a mount  356  that is located on a sole  352  of a golf club head  350 . Weight member  354  is coupled to mount  356  by a fastener  358  that extends through weight member  354  and into a fastening feature  360  of mount  356 . Fastener  358  and fastening feature  360  are constructed so that fastener  358  is placed in a fully locked position with less then a full turn relative to mount  356 . 
         [0145]    Fastening feature  360  includes a through-bore  362  and keyways  364  that are sized to receive a shank  366  and projections  368  on fastener  358 . Fastener  358  is aligned with keyways  364  and inserted. After it is fully inserted, fastener  358  is turned so that projections  368  slide along circumferential ramps  370  and into détentes  372 . In the present embodiment, détentes  372  are portions of ramps  370  that are recessed toward a support surface  374  of mount  356 . 
         [0146]    Support surface  374  includes step portions  376 , which may be discrete pads, and/or elongate shoulders, that support weight member  354  at its edges. Additionally, an optional resilient layer  378 , which is preferably constructed of a resilient polymeric material such as polyurethane, or a resilient foam material. Similar to the previous embodiment, as fastener  358  is tightened it causes weight member  354  to be drawn onto step portions  376  and to flex. The flexing of weight member  354  increases the load on fastener  358  and draws projections  368  into détentes  372 . 
         [0147]    Now referring to  FIGS. 37-40 , a golf club head  390  includes a sole  392 , a crown, a hitting face, a skirt  394 , a hosel, and a weight member  396 . Weight member  396  is attached to club head  390  at a weight mount  398 . Weight member  396  and mount  398  are shaped and sized to complement each other and so that relative rotation is limited. For example, weight member  396  has a generally polygonal shape and mount  398  has a matching shape and is partially recessed into sole  392  so that when weight member  396  is installed it is prevented from rotation relative to mount  398 . 
         [0148]    Mount  398  is partially recessed and extends into a portion of sole  392  and skirt  394 . Mount  398  is shaped to complement the shape of weight member  396  so that is provides alignment for weight member  396 . Mount  398  includes a fastener portion  400  and a support portion  402 . Fastener portion  400  includes a recess  404  that defines an abutment portion  405 , such as an edge or surface. During installation of weight member  396 , recess  404  receives a tapered portion of a fastener  406  that abuts abutment portion  405  and forces weight member  396  toward a bevel  408 . 
         [0149]    Bevel  408  extends from support portion  402  at a location of support portion  402  that is spaced from fastener  406  and fastener portion  400 . Bevel  408  is angled relative to support portion  402  by a bevel angle α. Preferably, bevel angle α is acute relative to support portion  402 . 
         [0150]    Weight member  396  includes an angled abutment surface  412  and a fastener engagement feature  414 . Angled abutment surface  412  is a surface that complements the shape of bevel  408  of mount  398  and that abuts bevel  408  when weight member  396  is installed on mount  398 . Bevel  408  and abutment surface  412  are oriented so that as weight member  396  is forced into abutment with bevel  408 , that abutment forces weight member  396  to be drawn tighter against sole  392  in mount  398 . 
         [0151]    Fastener engagement feature  414  of weight member  396  is a threaded bore that threadably engages a threaded portion of fastener  406 . Fastener  406  is configured so that it forces weight member  396  toward bevel  408 , generally along a translation axis A, as it is tightened in weight member  396 . In the present embodiment, instead of utilizing the angle of the fastener relative to the golf club head or the interaction between the fastener and the weight member to drive the weight member toward the bevel, the engagement between fastener  406  and mount  398  is utilized. Fastener  406  includes a tapered engagement portion  416  and a threaded portion  418 . Fastener  406  threads into a threaded bore  419  of weight member  396 , and tapered engagement portion  416  abuts abutment portion  405  of weight mount  398 . 
         [0152]    The engagement between fastener  406  and mount  398  is constructed so that a component of force is directed toward bevel  408 . In the present embodiment, another component of force is directed generally normal to support portion  400  and away from club head  390 . 
         [0153]    The interaction between weight member  396  and mount  398  is constructed so that the component of force that is normal to support portion  400  is counteracted. As a result, weight member  396  is not lifted from mount  398  when fastener is tightened. For example, the length and location of bevel  408  may be selected to counteract the force. In particular, bevel  408  and angled abutment surface  412  of weight member  396  extend along a relatively large portion of the perimeter of the weight member  396 , as shown in  FIG. 37 . In that example, bevel  408  extends from a location that is forward of recess  404  to a location that is aftward of recess  404 . As shown in  FIG. 37 , bevel  408  extends from the forward most portion of mount  398  to a location that is spaced laterally from recess  404 . As a result, a lateral axis L that is perpendicular to a translation axis T, and that extends through fastener  406  generally horizontal to sole  392 , extends through a portion of bevel  408 . Preferably, axis L extends through portions of bevel  408  on opposite heel and toe sides of weight member  396  so that an aft portion of weight member  396  is prevented from lifting from mount  398  when fastener  406  is tightened. 
         [0154]    In addition, or as an alternative to bevel  408 , one or more retainer  420  may be utilized that are spaced from bevel  408  so that fastener  406  is interposed between bevel and retainer  420 . For example, retainer  420  is disposed on an opposite side of fastener  406  relative to bevel  408  in the direction corresponding to the orientation of axis T (e.g., in a fore/aft direction as shown). Retainer  420  may be a single member that extends across mount  398 , or a plurality of retainers may be provided on opposite ends of mount  398 . Retainer  420  is spaced from support portion  402  so that a space is provided that has a height dimension that is approximately equal to the thickness of weight member  396  so that weight member  396  is unable to move away from support portion  402  of mount  398  when fastener  406  is tightened. 
         [0155]    Similar to previous embodiments, bevel angle α is selected so that as weight member  396  is forced into bevel  408 , weight member  396  is forced against support portion  402  and tighter against sole  392 . Bevel angle α is preferably 25°-65°, and more preferably 35°-55°. 
         [0156]    Referring to  FIGS. 41 and 42 , an embodiment that includes engagement between a fastener and a weight member that assists in the removal of weight member from a recessed mount will be described. In particular, referring to  FIGS. 41 and 42 , a fastener  430  is employed to retain a weight member  432  on a mount  434 . Fastener  430  generally includes a head  436  and a shank  438 . Head  436  includes an intermediate neck portion  440  that receives an edge  442  of weight member  432 . Neck portion  440  is dimensioned so that it receives a portion of edge  442  when weight member  432  is installed. As a result, when fastener  430  is removed, the lower portion of head  436  abuts edge  442  and lifts weight member  432  from mount  434 . 
         [0157]    In another embodiment, illustrated in  FIGS. 43 and 44 , a fastener  450  retains a weight member  452  on a mount  454 . Fastener  450  includes a head  456  and a shank  458 . Weight member  452  includes an edge  460  that defines a recess  462 . When weight member  452  is installed on mount  454 , recess  462  receives a portion of head  456  of fastener  450 . Recess  462  and head  456  are dimensioned so that as fastener  450  is removed, the upper surface of head  456  abuts an upper edge of recess  462  and lifts weight member  450  from mount  454 . Preferably, the upper surface of fastener  450  is curved convexly to provide smooth sliding between weight member  452  and fastener  450 . 
         [0158]    Referring now to  FIGS. 45 and 46 , a weight member  470  is installed on a mount  472  using an elongate fastener  473 . Both weight member  470  and mount  472  are constructed so that weight member  470  self-centers on mount  472 . For example, the outer, lower edges  474  of weight member  470  formed by the junction of a lower surface and a side wall of weight member  470  are tapered. Additionally, the side wall  479  of mount  472  is tapered so that as the weight member  470  is drawn into mount  472 , weight member  470  becomes centered by the sliding interaction of the tapers. 
         [0159]    Mount  472  includes a base surface  477  and side wall  479  that extends between base surface  477  and an adjacent portion of the club head body. In the illustrated embodiment, at least a portion of side wall  479  and the lower corners  476  of mount  474 , and the outer and lower edges  474  of weight member  470  are tapered with radiuses, but it should be appreciated that they may alternatively be chamfered and/or radiused. In particular, lower edges  474  of weight member  470  are tapered with radius R1 and side wall  479  of mount  472  are tapered by radius R2, and radius R1 is less than radius R2. 
         [0160]    In the present embodiment, weight member  470  is rotatably coupled to fastener  473  by a retainer  475 . Weight member  470  includes a bore  478  that receives fastener  473  and at least a portion of a fastener head  480 . A portion of fastener  473  includes a circumferential channel  482  that is configured to receive a portion of retainer  475  when fastener  473  is assembled with weight member  470 , as shown in  FIG. 46 . Bore  478  also includes a circumferential channel  484  that receives a portion of retainer  475  in the assembly. 
         [0161]    In a similar embodiment, illustrated in  FIGS. 57 and 58 , a weight member  490  is installed on a mount using an elongate fastener  473  and self-centers on a mount  492 . Mount  492  projects from an adjacent portion of the club head and includes a base surface  497  and a side wall  499  that extends between base surface  497  and the adjacent portion of the club head. The junction between side wall  499  and the adjacent portion of the club head body forms lower corners  496 . At least a portion of side wall  499 , preferably at or adjacent lower corners  496 , of mount  492  are tapered. Additionally, weight member  490  includes a recess  491 , that receives the projected mount  492 , and that is defined by side wall  493 . The inner, lower edges of side wall  493  of weight member  490  are tapered so that weight member  490  becomes centered on mount  492  by sliding interaction. In particular, lower edges  494  of weight member  490  are tapered with radius R1 and side wall  499  of mount  492  is tapered with a chamfer. As a result, the radius of weight member  490  slides along side wall  499  as fastener  473  draws weight member  490  toward mount  492  and weight member  490  self-centers on mount  492 . Fastener  473  includes a circumferential channel  482  that receives a retainer  475  when fastener  473  is assembled with weight member  490 . 
         [0162]    Referring now to  FIGS. 59 and 60 , a golf club head  600  includes a sole  602 , a crown (not shown), a hitting face (not shown) that includes a ball striking surface, a skirt  604 , a hosel  606 , and a weight member  608 . Sole  602  is a lowermost surface of the golf club head and includes a weight mount  610 , which is configured to couple weight member  608  to sole  602 . In the present embodiment, mount  610  is a recessed portion of sole  602  that is shaped to complement the shape of weight member  608 . Sole  602  is collectively formed by a body sole portion  611 , and a sole plate portion  612  that includes weight member  608 . Mount  610  is formed in sole plate portion  612  of sole  602 . Sole plate portion  612  is constructed of a material that is different than the other portions of sole  602 , and preferably is constructed from a material that has a density that is different than the other portions of sole  602 . 
         [0163]    Weight member  608  may be any shape, but is illustrated having a polygonal shape, and in particular generally has a chevron plan shape. Weight mount  610  includes a recess that receives weight member  608  and weight mount  610  is configured so that weight member  608  may be removably coupled in the recess. Preferably, weight member  608  has a polygonal or elongate shape so that it is prevented from rotating inside weight mount  610 . 
         [0164]    Sole plate portion  612  forms a portion of the sole surface of golf club head  600 . Sole plate portion  612  is formed from a sole plate  614  and weight member  608 . Sole plate  614  is constructed separately from sole  602  and coupled to sole such as by welding, brazing, bonding, mechanical fasteners, etc. Sole  602  includes an aperture that is closed by sole plate  614 . For example, sole plate  614  may be welded into the aperture so that it fills the aperture. As illustrated in  FIG. 60 , the aperture may be recessed and sole plate  614  may be disposed in the recess so that it covers the aperture. 
         [0165]    Sole aperture  616  extends through a portion of sole  602  and is closed by sole plate  614 . As shown in  FIG. 60 , aperture  616  may be disposed in a recess  618  of sole  602  so that a shoulder  620  is formed around the aperture  616 . Sole plate  614  is coupled to shoulder  620  of sole  602  in the recess  618 . 
         [0166]    Mount  610  is formed in sole plate  614  and includes a weight recess  622  and a coupling feature  624 , such as a threaded aperture. An advantage of forming mount  610  in sole plate  614  is that the forming of the weight mount in sole plate  614 , such as by machining, can be performed before the sole plate is attached to the sole. As a result, the forming of weight mount is performed quicker, cheaper and more efficiently. 
         [0167]    Weight member  608  includes weight body  626 , a fastener  628 , and a retainer  630 . When weight member  608  is installed, weight body  626  is received in weight recess  622  and fastener  628  extends into, and is removably coupled to the coupling feature  624 , such as by being threaded into the threaded aperture. As fastener  628  is tightened in the threaded aperture, weight body  626  is drawn into weight recess  622 . 
         [0168]    Retainer  630  couples weight body  626  and fastener  628  so that they rotate relative to each other about the longitudinal axis of the fastener  628 , and so that weight body  626  and fastener remain coupled even when weight member  608  is separate from a golf club head. As shown, weight body  626  includes an aperture having a circumferential groove in the aperture that extends from the aperture into weight body  626 . Similarly, fastener  628  includes a head portion and a circumferential groove disposed on, and extending into, the head portion. Weight body  626  and fastener  628  are positioned so that the circumferential grooves are generally opposed, and retainer  630  is installed so that it extends across the interface between weight body  626  and fastener  628  and into both of the circumferential grooves. 
         [0169]    Sole plate  614  and weight member  608  are combined to provide a concentrated mass on a portion of a golf club head. Sole  602  is constructed of a material that has a first density d1. In an embodiment, sole plate  614  is constructed of a material having a second density d2 that is greater than the first density d1. In further embodiments, weight body  626  is constructed of a material that has a third density d3 that is greater than the first density d1. In other embodiments, density d3 of the material of weight body  626  is greater than density d2 of the material of sole plate  614 . In an example, the sole may be constructed of titanium, the sole plate may be constructed of zirconium or steel, and the weight body may be constructed of tungsten. 
         [0170]    In order to provide the concentrated mass, it is preferable that sole plate  614  provide only a portion of the sole surface, ie., the lowermost surface that faces the ground plane, of the golf club head. For example, it is preferable, that sole plate  614  provide less than about 75% of the sole surface of the golf club head. More preferably, sole plate  614  provides less than about 50% of the sole surface of the golf club head, and still more preferably, sole plate  614  provides less than about 25% of the sole surface of the golf club head. 
         [0171]    Sole plate  614  has a center of gravity and the location of the center of gravity of sole plate  614  is rearward, away from the ball-striking face, toward the aft end of the golf club in a direction along a Z-axis (shown in  FIG. 1 ), relative to the geometric face center of the ball-striking face when the sole plate is installed in the golf club head. In an embodiment, the center of gravity of sole plate  614  is less than 50% of the maximum face to aft dimension, along the Z-axis, of the golf club head from the geometric face center of the ball-striking face. In another embodiment, the center of gravity of sole plate  614  is greater than 50% of the maximum face to aft dimension, along the Z-axis, of the golf club head from the geometric face center. In an example, in a golf club head having a volume in a range of about 380 cc to about  440  cc it is preferable that the center of gravity of sole plate  614  be located less than 50% of the maximum face to aft dimension, along the Z-axis, of the golf club head from the geometric face center of the ball-striking face so that the mass of sole plate  614  is biased forward in the golf club head. Conversely, in a golf club having a volume greater than about 440 cc it is preferably that the center of gravity of sole plate  614  be located greater than 50% of the maximum face to aft dimension, along the Z-axis, of the golf club head from the geometric face center of the ball-striking face from the origin so that the mass of sole plate  614  is biased rearward in the golf club head. The geometric face center of the ball-striking face is found in accordance with the USGA Procedure for Measuring the Flexibility of a Golf Clubhead, Rev. 1.0.0, May 1, 2008. 
         [0172]    Weight member  608  also has a center of gravity. Preferably, the center of gravity of weight member  608  is located in close proximity to the center of gravity of sole plate  614  when weight member  608  is installed in mount  610 . In particular, it is preferred that the center of gravity of weight member  608  is located within 10 mm of the center of gravity of sole plate  614 , and more preferably the center of gravity of weight member  608  is located within 5 mm of the center of gravity of sole plate  614 . In an embodiment, the center of gravity of sole plate  614  and weight member  608  are in the same location so that they coincide when weight member  608  is installed in mount  610  of sole plate  614 . 
         [0173]    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.