Patent Publication Number: US-9421672-B2

Title: Clamp assembly

Description:
BACKGROUND 
     1. Field 
     The present disclosure is generally related to the field of tools, and, more specifically, to a clamp assembly. 
     2. Description of Related Art 
     A clamp is a device used to join, grip, support, or compress mechanical or structural parts. Clamps use opposing, sometimes adjustable sides or parts for bracing objects or holding them together. Generally, a clamp is used by positioning a jaw or jaws of the clamp on surfaces of a workpiece to be clamped. The workpiece is any member or members that needs clamping. For example, the workpiece may be two elements that are being joined together by adhesive or otherwise and require a clamping force. 
     The present invention provides improvements over prior art clamps. 
     SUMMARY 
     One aspect of the disclosure provides a clamp assembly including: a clamp body configured to engage an elongated structure on which the clamp assembly is to be mounted and a workpiece engaging head connected with the clamp body. The clamp body includes a movable member arranged to be moved into forced engagement with an exterior surface of the elongated structure to fix the clamp body on the elongated structure. The movable member is movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure. The clamp body has a releasable connection constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure without requiring the clamp body to be longitudinally slid past an end of the elongated structure. 
     Another aspect of the disclosure provides a clamp assembly pair including: a first clamp body and a second clamp body. The first clamp body is configured to engage an elongated structure on which the clamp assembly pair is to be mounted. The first clamp body includes a first workpiece engaging head connected with the first clamp body and a first movable member arranged to be moved into forced engagement with an exterior surface of the elongated structure to fix the first clamp body on the elongated structure. The first movable member is movable away from said forced engagement to allow the first clamp body to be loosened from the elongated structure. The second clamp body is also configured to engage an elongated structure on which the clamp assembly pair is to be mounted. The second clamp body includes a second workpiece engaging head connected with the second clamp body and a second movable member arranged to be moved into forced engagement with the exterior surface of the elongated structure to fix the second clamp body on the elongated structure in spaced relation relative to the first clamp body. The second movable member is movable away from said forced engagement to allow the second clamp body to be loosened from the elongated structure. At least one of the first clamp body and the second clamp body has a releasable connection constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure without requiring the clamp body to be longitudinally slid past an end of the elongated structure. 
     Yet another aspect of the disclosure provides a method for releasing a clamp assembly from an elongated structure. The clamp assembly includes: a clamp body configured to engage the elongated structure on which the clamp assembly is to be mounted, a workpiece engaging head connected with the clamp body, and a movable member arranged to be moved into forced engagement with an exterior surface of the elongated structure to fix the clamp body on the longitudinal wood structure. The movable member is movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure. The clamp body has a releasable connection constructed and arranged to be released so that the clamp assembly can be released from the elongated structure. The method for releasing includes: moving the movable member away from said forced engagement with the exterior surface of the elongated structure; releasing the releasable connection, and removing the clamp body from the elongated structure without requiring the clamp body to be longitudinally slid past an end of the elongated structure. 
     Other features and advantages of the present disclosure will become apparent from the following detailed description, the accompanying drawings, and the appended claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates a side view of a clamp assembly pair in accordance with an embodiment of this disclosure. 
         FIG. 2  illustrates an opposite side view of the clamp assembly pair of  FIG. 1 . 
         FIG. 3  illustrates a perspective view of the clamp assembly pair of  FIG. 1 . 
         FIGS. 4 and 5  illustrate perspective views of steps for attaching a clamp body of the pair of  FIG. 1  to an elongated structure. 
         FIG. 6  illustrates a detailed, perspective view of a movable member of a clamp assembly in accordance with an embodiment of this disclosure. 
         FIGS. 7 and 8  illustrate side and perspective views, respectively, of the clamp assembly pair of  FIG. 1  mounted on an elongated structure. 
         FIG. 9  illustrates the clamp assembly pair of  FIG. 1  mounted on a 2×4 wood structure of a saw horse in accordance with an embodiment. 
         FIG. 10  illustrates a perspective view of a clamp assembly pair in accordance with another embodiment of this disclosure. 
         FIG. 11  illustrates a detailed, perspective view of a movable member of a clamp assembly of  FIG. 10  in accordance with an embodiment of this disclosure. 
         FIG. 12  illustrates a perspective view of a clamp assembly pair in accordance with yet another embodiment of this disclosure. 
         FIGS. 13 and 14  show a single releasable connection of a clamp assembly of  FIG. 12  in unlocked and locked positions, respectively. 
         FIG. 15  illustrates a perspective view of a clamp assembly pair in accordance with still yet another embodiment of this disclosure. 
         FIG. 16  illustrates a perspective view of a clamp body of  FIG. 15 . 
         FIG. 17  illustrates a perspective view of a clamp assembly pair in accordance with another embodiment of this disclosure. 
         FIG. 18  illustrates a perspective view of a clamp assembly pair in accordance with still yet another embodiment of this disclosure. 
         FIG. 19  illustrates a perspective view of a clamp body of  FIG. 18 . 
         FIG. 20  illustrates an underside perspective view of a clamp body of  FIG. 19 . 
         FIG. 21  illustrates a detailed, underside perspective view of a movable member of a clamp assembly of  FIG. 18  in accordance with an embodiment of this disclosure. 
     
    
    
     DETAILED DESCRIPTION 
       FIGS. 1-3  illustrate a clamp assembly pair  100  in accordance with an embodiment of this disclosure. The use of each clamp assembly as a pair  100  is described herein with reference to it being mounted on an elongated structural member  200  (see  FIG. 4 ). In one embodiment, the elongated structure can be a 2×4 wood structure (note that the actual dimensions of what is nominally a 2×4 wood structure is actually approximately 1.5″×3.5″, with some degree of tolerance; for the purposes of this disclosure, a 2×4 wood structure or member can have a cross-sectional dimension of between 1⅜″ to 1⅝″ by 3⅜″ by 3⅝″). It should be appreciated, however, that other elongated structures to which the clamp assembly pair  100  can be mounted are also contemplated. For example, wood members of other dimensions can be used. In addition, I-beams, metal pipes, or the like can also be used. For simplicity purposes, the clamp assembly pair  100  is illustrated in the figures as mounted on 2×4 wood member. In one embodiment, the 2×4 wood structure may be provided as part of or integrated into another structure. For example,  FIG. 9  illustrates an embodiment wherein the 2×4 wood structure for mounting the clamp assembly thereon is part of a saw horse. The 2×4 may be part of another structure, including, but not limited to, rafters or framing for a house. Throughout this disclosure, a 2×4 wood structure may be simply referred to as a “2×4” or a “wood structure.” A “workpiece” is one or more pieces of material(s) that are configured to be clamped and held between the two clamp assemblies  102  and  104  of the clamp assembly pair  100 . 
     Referring back to  FIGS. 1 and 3 , clamp assembly pair  100  comprises a first clamp assembly  102  (on the left side in  FIGS. 1 and 3 ) and a second clamp assembly  104  (on the right side in  FIGS. 1 and 3 ). The first clamp assembly  102  includes a first clamp body  12  and a first workpiece engaging head  14 . First clamp body  12  comprises an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure on which first clamp assembly  102  is to be mounted. 
     First workpiece engaging head  14  is connected with first clamp body  12 . More specifically, the first workpiece engaging head  14  of first clamp assembly  102  is an adjustable clamp head. In this embodiment, the adjustable clamp head  14  is connected to the body  12  by a threaded adjustment screw  18 . Adjustable clamp head  14  is configured to move or slide in a longitudinal direction (relative to the elongated structure  200  on which the clamp assembly  102  may be mounted) by rotation of the screw  18 . An overhanging lip (or lips)  50  extending downwardly from a side of head  14  acts as a guide for movement of the head  14  along the wood structure as will be described in more detail later. It should be appreciated that in one embodiment a lip  50  may be provided on both opposite sides of head  14  so that the head  14  in essence straddles the elongated structure  200 . Adjustable clamp head  14  is moved relative to a fixed or anchored workpiece engaging clamp head  62  that is provided by the second clamp assembly  104 . Adjustable clamp head  14  can move in a direction as indicated by arrow A, to allow clamping or releasing of a workpiece between the clamping surfaces of the first clamp assembly  102  and the second clamp assembly  104 . 
     In an embodiment, adjustable clamp head  14  includes an optional first workpiece engaging pad  16 . Pad  16  provides a surface for engaging a workpiece. In one embodiment, pad  16  is removable and replaceable. In an exemplary non-limiting embodiment, the pad is formed from an elastomer or rubber material that is attached to a flange portion  19  of the adjustable clamp head  14 . A surface of the pad can be formed from a resilient material that provides friction for griping a workpiece. In another embodiment, pad  16  is simply an integrally formed portion of adjustable clamp head  14  and can be formed from a metal material (here the pad is simply any engagement surface of the head, or can also be considered as an elimination of the pad). 
     As noted above, adjustable clamp head  14  is advanced or retracted relative to first clamp body  12  in a direction noted by arrow A by rotation of the screw  18  via a crank handle  20 . The crank handle  20  has bulged opposite ends and is slidingly received in an opening  221  in the screw  18 . First clamp body  12  has an internally threaded cylindrical nut  21  for receipt of screw  18  therethrough. One end of screw  18  is rotatably connected within adjustable clamp head  14  for movement thereof, while the other end is used to initiate rotation and movement of the adjustable clamp head  14 , e.g., via a crank handle  20  mounted thereon. As an example, rotatably connected end of screw  18  is rotatable with respect to head  14 , yet axially fixed to head  14 . The screw  18  may be rotatably connected to the head  14  by, for example, one or more fasteners  48  inserted into head  14 . In an exemplary embodiment, screw  18  comprises an annular groove (not shown) configured to receive an exterior surface of the shank of fastener  48 , which construction axially fixes the head to the screw  18 , but allows relative rotation therebetween. 
     When made to revolve about its longitudinal axis, e.g., in a rotational direction as indicated by arrow B (see  FIG. 3 ) by crank handle  20 , screw  18  will move relative to the first clamp body  12 , and, thus, adjustable clamp head  14  will also move longitudinally relative to the second clamp assembly  104  when the clamp assemblies are mounted on the elongated structure  200 . For example, adjustable clamping head  14  is movable towards a workpiece, and an anchored clamping head  62  of second clamp assembly  104 , by turning and rotating crank handle  20  in a clockwise direction, and selectively away from the workpiece and anchored clamping head  62  by turning and rotating crank handle  20  in a counter-clockwise direction. 
     As also shown in  FIG. 3 , upper portion  13  of first clamp body  12  may include teeth  56  to securely mount the body  12  and substantially prevent movement of first clamp body  12  relative to the elongated structure (e.g., 2×4 wood structure) after the first clamp body  12  is mounted thereon. 
     In one embodiment, the upper portion  13  of first clamp body  12  comprises a clamp mount structure  26  that is separately formed from, and connected to, the structure forming the lower portion  15  of body  12 , as will be appreciated from further discussions below. It should be appreciated, however, that in another embodiment the upper portion  13  can have a least a portion thereof integrally formed with the lower portion  15 . 
     Clamp mount structure  26  may be formed as a body with the aforementioned internally threaded cylindrical nut  21  therethrough and the teeth  56  on an underside surface thereof. Clamp mount structure  26  is fixed relative to adjustable head  14 . 
     First clamp body  12  also has a first movable member  28  associated with its lower portion  15 . First movable member  28  is arranged to be moved into forced engagement with an exterior surface (e.g., such as the bottom side surface) of the elongated structure  200  to fix first clamp body  12  on the elongated structure, and arranged to be moved away from such forced engagement to allow first clamp body  12  to be loosened from the elongated structure. For example, first movable member  28  may be configured to move in a vertical direction relative to a wood 2×4 such that it can be engaged or disengaged with a bottom side surface of the 2×4. First movable member  28  can have a contact portion  34  on one end thereof (see  FIG. 3 ) for contact with the 2×4. When first movable member  28  is moved into forced engagement with 2×4, contact portion  34  is engaged with an exterior surface of the wood structure. 
     In accordance with an embodiment, rotational movement of first movable member  28  moves contact portion  34  in a vertical direction towards or away from a 2×4. For example, first movable member  28  can be moved relative to the bottom or lower portion  15  of the body  12 . Specifically, in one embodiment, the lower portion  15  of body  12  includes a base  46  and opposing side members or brackets  42 ,  44 . In an embodiment, base  46  is integrally formed with the side members  42  and  44 . Base  46  includes a through hole portion  38  through which first movable member  28  extends. First movable member  28  has screw threads  32  that cooperate with corresponding threads in through hole portion  38  so that contact portion  34  is moved into or out of engagement with the 2×4. 
     In an embodiment, a handle  30  is mounted on or with another end of first movable member  28  to initiate rotational movement thereof and movement of contact portion  34 . Handle  30  may have a stand off foot  36  (see  FIG. 3 ) at either of its ends to improve grip thereof. 
     In one embodiment, contact portion  34  can include a plurality of extended engagement portions or teeth  35  configured for contact with elongated structure  200 .  FIG. 6  is an enlarged view of the lower portion  15  of the second clamp assembly  104 , and, more specifically, illustrates an example of such engagement portions or teeth  35  associated with a contact portion  34  of a movable member  28  of the second clamp assembly  104 . 
     Each of the first clamp assembly  102  and the second clamp assembly  104  has at least one releasable connection that is constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, and as will be described in greater detail later, the first clamp assembly  102  has a releasable connection  40  that is constructed and arranged for attachment and release of first clamp body  12  with a 2×4. 
     In an embodiment, the releasable connection is provided between upper portion  13  and lower portion  15  of first clamp body  12 . For example, in one embodiment, the releasable connection can be provided anywhere between clamp mount structure  26  and first movable member  28  (and its associated lower portion  15 ). 
     In one embodiment, as shown in  FIGS. 2 and 3 , releasable connection  40  is provided towards the upper portion  13  of first clamp body  12  and can be used to connect the upper portion  13  and lower portion  15 . For example, first clamp body  12  may employ portions of its side members  42  and  44  to be connected with the upper portion  13  or clamp mount structure  26 . As shown, in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates to connect the upper and lower portions  13 ,  15 . In the illustrated exemplary embodiment of  FIG. 3 , the brackets or side members  42  and  44  of body  12  may also be considered or viewed as a first connector  42  and second connector  44  to connect the movable member  28  (and base  46 ) to the clamp mount structure  26 . In one embodiment, an end of each of the side members  42 ,  44  is integrally formed with base  46  on lower portion  15  of first clamp body  12 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from base  46 . 
       FIG. 6  shows an example of such features with reference to parts of the second clamp assembly  104  (described further below). Specifically,  FIG. 6  shows side members  42  and  44  connected to the base  46 . In one embodiment, the side members  42 ,  44  and base are integrally formed. The structure of base  46  and side members  42  and  44  can be manufactured via stamping, forging, and/or threading processes, for example. 
     At least one portion of each of the side members  42  and  44  has a connector portion that is engagable and disengagable. Side members  42  and  44  can be configured for connection and disconnection with clamp mount structure  26 , for example. In one embodiment, clamp mount structure  26  includes bracket attachment portions  52  on either of its sides for releasable connection with side members  42  and  44 . Each bracket attachment portion  52  includes a protruding body  51  with a channel  53  and at least one flange  57  on an outer edge of the protruding body  51 . This arrangement may be better appreciated with respect to  FIGS. 4 and 5 , illustrating a similar connection in the second clamp assembly  104  as will be appreciated by those skilled in the art. In one embodiment, flanges  57  are provided on opposing sides of each channel  53 . Channel  53  is provided to receive a portion of a bracket or a side member therein. Each flange  57  is configured to assist in maintaining receipt of a portion of the side member within the channel  53 . 
     Specifically, each side member  42  and  44  can have a releasable connection opening  54  on an upper portion thereof. The releasable connection opening  54  on each side member is configured for receipt of a respective one of the bracket attachment portions  52  on opposite sides of the clamp mount structure  26 . More specifically, the upper edge of each releasable connection opening  54  is configured for receipt within the channel  53  of a respective protruding body  51 . 
     In one embodiment, the connection openings  54  are effectively slots with open ends  49  that receive the protruding bodies  51 . The slots  54  also have closed ends  55 . In one embodiment, the brackets or side members  42 ,  44  can also be provided with support structures  45 . Specifically, each support structure  45  may be connected both above and below the open end  49  of the slot  54  so as to structurally support the side members  42 ,  44  at that region and to compensate for the material removal required to create the open end  49  of the slot  54 . This slot and support structure are also illustrated more clearly in the embodiment of  FIG. 4 , using the same reference numerals  49  and  45 . Each support structure  45  may be configured to allow receipt of protruding body  51  within releasable connection opening  54 . More specifically, each support structure  45  is configured to bulge outwardly from each respective side member  42  and  44  to accommodate protruding body  51  of bracket attachment portion  52  and to allow protruding body  51  to be slidingly received within the releasable connection opening (being a slot in this embodiment)  54 . In the embodiment shown in  FIGS. 4-6 , the slot openings  49  in side members  42  and  44  are configured to be aligned with and slid into engagement with protruding bodies  51  (or vice versa). The protruding bodies  51  on either side of clamp mount structure  26  are guided by channels  53  for receipt of the edges surrounding openings  54 . Flanges  57  of each protruding body  51  are provided to retain at least upper edges of the releasable connection openings  54  within channels  53  when the side members  42  and  44  are connected. In an embodiment, flanges  57  are configured to assist in maintaining connection of side members  42  and  44  with the body of clamp mount structure  26 . It should be appreciated that the upper edges of the openings  54  are forcibly maintained in channels  53  when the movable member  28  is tightened against an elongated member  200  when mounted thereon. 
     While the attachment portions(s)  52  and opening(s)  54  provide one form of connection  40 , it should be appreciated that numerous different types and forms of connections can be provided. For example, the projection can be provided on the side members and openings and/or slots provided in the clamp mount structure  26 . Also, rather than a projection/opening, various types of fasteners can be used to form the connection  40 . 
     In accordance with one embodiment, rather than a slot, the openings  54  are closed at both ends, and no support structure  45  is provided. Side members  42  and  44  may be forced into connection with clamp mount structure  26 . For example, a user may position side members  42  and  44  around elongated structure  200  near clamp mount structure  26 . A user may apply force to bend the side members slightly outwardly away from the clamp mount structure  26  to allow receipt of bracket attachment portions  52  (protruding bodies  51 ) in releasable connection openings  54 . Shape memory spring force may return side members  42  and  44  to their original configurations. 
     Once bracket attachment portions  52  on both sides are received within their respective openings  54 , the side members  42  and  44  may optionally be secured via at least one thumb screw  58 . Specifically, an opening  61  (an example being shown with reference to a second clamp body  12  in  FIG. 4 ) for attachment of a thumb screw  58  or other fastening device is provided on one or both sides of first clamp body  12 . The opening  61  may be an internally threaded alignment opening or a non-threaded hole, for example. In one embodiment, opening  61  is provided in clamp mount structure  26 . A corresponding receiving opening  59  can be provided in one or more of the side members  42  and/or  44 . In one embodiment, the receiving opening  59  is threaded. Receipt of each bracket attachment portion  52  within opening  54  can align receiving opening(s)  59  of the side member(s)  42  and/or  44  with the opening(s)  61 . In an embodiment, thumb screw  58  is associated with either one of the side member  42  or  44 . Thumb screw  58  is configured to be moved and tightened in a rotational direction such that side members  42  and  44  are connected to and secured with respect to the clamp mount structure  26 . Tightening of thumb screw  58  on one side can force both side members  42  and  44  into engagement and connection with clamp mount structure  26 . Movement of thumb screw  58  in an opposite rotational direction (to the rotational direction for tightening the screw  58 ) can alternatively loosen the connection between side members  42  and  44  and clamp mount structure  26 . 
     As alternate embodiment, a captured spring loaded pull pin can be used to accomplish the same function as the thumb screw  58 , for example. Accordingly, the use of thumb screw  58  is not limiting. 
     In an embodiment, one or more fasteners can be optionally inserted through one or more optional attachment holes  37  on either or both side members  42  and/or  44  and into elongated structure  200 . Specifically, one or more attachment holes  37  for semi-permanent attachment of the first clamp body  12  with the elongated structure  200  can be provided on one or both sides of first clamp body  12  (an example of two attachment holes  37  per side member  42 ,  44  is shown  FIG. 1 ). In one embodiment, one or more attachment holes are provided in either or both side members  42  and/or  44 . A fastener (e.g., screw, through bolt) can be inserted through the attachment hole  37  in side member  42  and/or  44  and into elongated structure  200 . The fasteners can be screwed in directly to the elongated structure  200 , or into holes that are drilled into the elongated structure  200  near the attachment holes  37 . For example, once the movable member  28  is installed and tightened against the elongated structure  200 , holes can be drilled into or through the elongated structure  200  using the attachment holes  37  as an alignment point. Attachment of the side members  42  and/or  44  using fasteners through attachment holes  37  provides a semi-permanent mounting of the clamp body  12  so that they remain at least temporarily fixed to the elongated structure  200  at a specified length. Temporary securement of the clamp bodies can also allow for high clamping forces. 
     However, as previously noted, use of a thumb screw  58  and/or fasteners through attachment holes  37  is optional, and need not be provided as the engagement between protruding body  51  and the upper edge of opening  54  alone is sufficient to from a connection when the body  12  is secured to the elongated structure  200 . However, the thumb screw  58  may help facilitate the connection even when the clamp assembly is removed from the elongated structure  200  and stored. 
     In one embodiment, the first clamp body  12  surrounds the elongated structure  200  on which it is mounted. Specifically, side member  42  is configured to extend alongside and adjacent to a first side surface of the elongated structure  200  and side member  44  is configured to extend alongside and adjacent to a second, opposite side surface of the elongated structure  200 , the base  46  extends below the elongated structure  200  and connects the side members  42 ,  44 , while the mount structure  26  closes off the upper ends of the side members  42  and  44  above the elongated structure  200 . In an embodiment, internal surfaces of each side member  42  and  44 , i.e., the surfaces adjacent to elongated structure, are configured to contact a respective side of elongated structure  200 . In another embodiment, the internal surfaces of the side members  42  and  44  remain slightly spaced from the sides of elongated structure  200  when the first clamp body  12  is mounted thereon. 
     A spacing between side members  42  and  44  is configured to accommodate a width of a 2×4 wood structure (e.g., a spacing of approximately 1½ inches to approximately two inches). The spacing of side members  42  and  44  may be designed such that fastening of the side members  42  and  44  of first clamp body  12  move each of their internal surfaces further adjacent to or into contact with a respective side of the wood structure. 
     In a similar manner, a spacing between upper portion  13  and lower portion  15  of first clamp body  12  is configured to accommodate a height of a 2×4 wood structure (e.g., a spacing of approximately four inches to approximately six inches). For example, in one embodiment, a distance between an underside surface of clamp mount structure  26  and a top surface of base  46  can be designed to accommodate the height of the elongated structure  200 . In one embodiment, the spacing between clamp mount structure  26  and base member  46  is greater than the height of the wood structure so that there is sufficient space to allow movement of the movable member  28  into and out of contact with the (bottom) side of the elongated structure  200 . 
     First clamp body  12  and/or adjustable clamp head  14  and/or parts thereof may be formed from cast metal, plastic, plastic composite, for example, or any other number or combinations of materials known in the art. 
     The second clamp assembly  104  includes a second clamp body  12  and a second workpiece engaging head  62 . Second clamp body  12  comprises an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure on which second clamp assembly  104  is to be mounted. 
     In one embodiment, two opposing adjustable clamp assemblies  102  may be mounted on elongated structure  200  as a pair for clamping a workpiece therebetween. This would allow for adjustable clamping from both opposite ends of the workpiece. In another embodiment, as illustrated, one of the clamp assemblies of the pair  100  is a fixed clamp assembly  104 . Specifically, as shown, the fixed clamp assembly comprises a fixed workpiece engaging head  62  for engagement with a workpiece. Second workpiece engaging head  62  is connected with a second clamp body  12 , which can, in one embodiment, be identical with the aforementioned clamp body  12  and thus is designated with the same reference numerals. It should be appreciated, however, that different structures can be used for the clamp bodies. 
     In an embodiment, fixed or anchored clamp head  62  comprises or includes a workpiece engaging head for engaging a workpiece. In one embodiment, it includes an optional second workpiece engaging pad  64 . Pad  64  provides a surface for engaging a workpiece. In one embodiment, pad  64  is removable and replaceable. A surface of the pad can be formed from a resilient material that provides friction for griping a workpiece. In another embodiment, pad  64  is simply an integrally formed portion of anchored clamp head  62  and can be formed from a metal material. 
     As shown in  FIG. 3 , upper portion  13  of second clamp assembly  104  (as in the first clamp assembly  102 ) may include teeth  56  to securely mount the body  12  to and substantially prevent movement of second clamp body  12  along the elongated structure (e.g., 2×4 wood structure) once the second clamp body  12  is mounted thereon. 
     As with the first clamp assembly  102 , the second clamp body  12  or the second clamp assembly  104  also has a movable member  28  associated with its lower portion  15 . The movable member  28  is arranged to be moved into forced engagement with an exterior surface (e.g., such as the bottom side surface) of the elongated structure to fix second clamp body  12  on the elongated structure. For example, second movable member  28  may be configured to move in a vertical direction relative to a wood 2×4 such that it can be engaged or disengaged with a bottom side surface of the 2×4. Second clamp body  12  of the second clamp assembly  104  is mounted on elongated structure  200  in spaced relation relative to the first clamp body  12  of the first clamp assembly  102  to accommodate a workpiece for clamping. For example, second clamp body  12  of the second clamp assembly  104  can be positioned a distance D (e.g., see  FIG. 7 ) from the first clamp body  12  of the first clamp assembly  102  to receive a workpiece therebetween. Alternatively, the second clamp body  12  is initially mounted on the elongated structure  200  and the first clamp body  12  is positioned a distance D from the second clamp body  12 . Distance D defines an area between the workpiece clamping surfaces that is at least substantially similar in dimension as a workpiece to be clamped, if not larger. 
     The second movable member  28  of the second clamp assembly  104  is also arranged to be movable away from forced engagement to allow second clamp body  12  to be loosened from the elongated structure  200 . Second movable member  28  can have a contact portion  34  on one end thereof (see  FIG. 3 ) for contact with the 2×4. When second movable member  28  is moved into forced engagement with 2×4, contact portion  34  is engaged with (bottom) exterior surface of the wood structure. In accordance with an embodiment, rotational movement of second movable member  28  of second clamp assembly  104  moves contact portion  34  in a vertical direction towards or away from a 2×4 as described with respect to the first clamp assembly  102 . In addition, one skilled in the art will appreciate that the connection of the second body  12  of the second clamp assembly  104  with the fixed or anchored clamp head  62  will occur in essentially the same manner as the connection between the clamp mount structure  26  with the first body  12  of the first clamp assembly  102 . Specifically, the fixed clamp head  62  is provided with essentially the same or similar attachment portions  51  (with projections  51 , channels  53 , and flanges  57 ) as is provided on the clamp mount structure  26 . The difference in the embodiment of the second clamp assembly  104  is that its clamp head  62  is fixedly attached to the body  12  (rather than movably attached). In addition, a lower portion of the fixed or anchored clamp head  62  cooperates with the second body  12  of the second clamp assembly  104  to close off the upper end of side portions  42  and  44  to surround the elongated structure  200 . The anchored clamp head  62  may alternatively be viewed as having the lower portion thereof that is connected with the upper portions of side portions  42  and  44  as being part of (and the completion of) the body  12 , while also having a front portion thereof (optionally with or without a removable pad) serving as the workpiece engaging head for engaging the workpiece. 
     In one embodiment, one or both clamp assemblies can be attached to and released from an elongated structure (e.g., 2×4 wood structure)  200  in a direction that is transverse to a longitudinal direction of the elongated structure, without requiring access to an end of the 2×4. Attachment and removal of the clamp body  12  with respect to the 2×4 wood structure  200  is further shown and described relative to  FIGS. 4-6 . In these Figures, for explanatory purposes only, steps for attaching second clamp assembly  104  to part of a 2×4 wood structure  200  are shown. However, as previously described, it should be understood that first clamp assembly  102  may be assembled and attached to the 2×4 wood structure  200  in a substantially similar manner (e.g., and in a spaced relation to the second clamp body and/or based on a width of the workpiece to be clamped). The order or manner of attachment of any clamp assembly to the 2×4 is not meant to be limiting. 
     To attach a second clamp assembly  104  to a longitudinally positioned 2×4 wood structure  200 , anchored clamp head  62  can be mounted or placed on a top side surface of the 2×4 as shown in  FIG. 4 . Any teeth  56  on the underside surface of the head  62  can assist in gripping the wood for mounting and anchoring thereof. Brackets or side members  42  and  44  of the second clamp body  12  are positioned around sides of 2×4 wood structure  200  and moved in a (vertical) direction towards the anchored clamp head  62 , as indicated by arrow C in  FIG. 4 , to substantially surround the sides of the wood structure  200 . Then, as shown in  FIG. 5 , the movable member  28  and brackets  42  and  44  of second clamp body  12  are moved towards the anchored clamp head  62 , as indicated by arrow E. Bracket attachment portions  52  are aligned with the support structure  45  of each bracket  42  and  44 . The brackets or side members  42  and  44  are slid horizontally such that protruding bodies  51  of the bracket attachment portions  52  on each side of anchored clamp head  62  slide at least partially past their respective support structures  45  and into connection openings  54 . At least upper edges of connection openings  54  of the side members  42  and  44  are guided by channels  53  of the protruding bodies  51  towards closed ends  55 . Once sliding has commenced and the bracket attachment portions  52  are received in openings  54 , receiving opening  59  of bracket  44  and the opening  61  of anchored clamp head  62  will be substantially in-line with each other. A thumb screw  58  is optionally inserted through receiving opening  59  and screwed into the opening  61  to connect second clamp body  12  to anchored clamp head  62 . As the thumb screw  58  is tightened, it threads into receiving opening  59  of bracket  44 . The threads of receiving opening  59  keep the thumb screw  58  engaged and prevent clamp head  62  from moving or sliding off of the clamp body  12 . After thumb screw  58  is tightened, the second movable member  28  is moved into contact with the (bottom) exterior surface of the 2×4, as shown in  FIG. 6 . Specifically, handle  30  is rotated about its axis (e.g., in a clockwise direction), as shown by arrow F, which in turn moves the screw threads  32  of movable member  28  through through hole portion  38 . As the second movable member  28  is rotated using screw threads  32 , it is moved in a vertical direction, as indicated by arrow G, and contact portion  34  and teeth  35  are moved into engagement with (bottom) exterior surface of wood structure  200 , thereby securing the second clamp assembly  104  to the 2×4. 
     In another embodiment, as thumb screw  58  is tightened, brackets or side members  42  and  44  are also tightened around the 2×4. 
     Conversely, the method of releasing and removing the second clamp assembly  104  from a 2×4 wood structure  200  includes steps that are substantially opposite to those described and shown above in  FIGS. 4-6 . To release the second clamp assembly  104 , the method of removal starts by loosening second movable member  28  of second clamp body  12  away from said forced engagement with the bottom side surface of the wood structure  200  by turning handle  30  rotationally (e.g., in a counter-clockwise direction). Then, the optional thumb screw  58  is rotated such that it is retracted from its opening  61  in anchored clamp head  62  and removed from the opening  61  and unthreaded from receiving opening  59  of side member  42 . The side members  42  and  44  are then unattached from anchored clamp head  62  by sliding second clamp body  12  away from anchored clamp head  62  (in a direction opposite to arrow E in  FIG. 5 ). Specifically, protruding bodies  51  of bracket attachment portions  52  are withdrawn from releasable connection openings  54  by sliding edges of the openings  54  out of the channels  53  via open ends  49 . The side members  42  and  44  of second clamp body  12  are moved or slid away from anchored clamp head  62 . For example, with reference to  FIG. 4 , the second clamp body  12  may be moved in a transverse direction (e.g., vertically downward; a direction opposite to that of arrow C) relative to the longitudinal direction of the 2×4 wood structure  200 . Anchored clamp head  62  can be lifted (e.g., in a vertical or Y-direction) to release any engagement of the teeth  56  with the top side of the wood structure  200 , and to remove the head  62  therefrom. Accordingly, second clamp body  12  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
     Again, it should be understood that first clamp body  12  and clamp mount structure  26  of first clamp assembly  102  may be assembled and released from the 2×4 wood structure in a substantially similar manner as described above with reference to the removal of the second clamp assembly  104 . For example, clamp mount structure  26  can be mounted with attached adjustable clamp head  14  on a top side surface of the 2×4. The clamp mount structure  26  can be placed on the 2×4 such that adjustable clamp head  14  is spaced at least distance D from a fixed clamp head, e.g., the anchored clamp head  62  of the second clamp body  12 , for example. Overhanging lip  50  of adjustable clamp head  14  straddles the sides of the 2×4 and helps prevent rotation of the head  14  when the screw  18  is rotated. Any teeth  56  on the underside surface of the mount  26  can assist in gripping the wood for mounting and anchoring thereof. Brackets or side members  42  and  44  of first clamp body  12  are aligned around sides of 2×4 wood structure  200  and moved in a (vertical) direction towards clamp mount structure  26 , to substantially surround the sides of the wood structure. Then, the first clamp body  12  is moved towards clamp mount structure  26 . Bracket attachment portions  52  are aligned with support structures  45  of each side member  42  and  44 . The side members  42  and  44  are slid horizontally such that protruding bodies  51  of the bracket attachment portions  52  on each side of clamp mount structure  26  slide at least partially past their respective alignment portions  45  and into connection openings  54 . At least upper edges of connection openings  54  of the brackets  42  and  44  are guided by channels  53  of protruding bodies  51  towards closed ends  55 . Once sliding has commenced and edges of the bracket attachment portions  52  are received in openings  54 , receiving opening  59  of bracket  44  and opening  61  of clamp mount structure  26  will be substantially in-line with each other. A thumb screw  58  is optionally screwed through the receiving opening  59  and inserted into the opening  61  to connect first clamp body  12  to workpiece engaging head  14  via clamp mount structure  26 . As the thumb screw  58  is tightened, it threads into the bracket  44  at receiving opening  59  and is inserted into non-threaded hole  61 . The threads of receiving opening  59  on the bracket  44  keep the thumb screw  58  engaged, and prevents the clamp head  62  from sliding off the clamp body  12 . After thumb screw  58  is tightened, the first movable member  28  is moved into contact with the (bottom) exterior surface of the 2×4. Specifically, handle  30  is rotated about its axis (e.g., in a clockwise direction) which in turn moves the screw threads  32  of movable member  28  through through hole portion  38 . As the second movable member  28  is rotated using screw threads  32 , it is moved in a vertical direction, and contact portion  34  and teeth  35  are moved into engagement with (bottom) exterior surface of wood structure  200  thereby securing the first clamp assembly  102  to the 2×4. 
     Conversely, the method of releasing and removing the first clamp assembly  102  from a 2×4 wood structure  200  includes steps that are substantially opposite to those described above. To release the first clamp assembly  12 , the method of removal starts by moving second movable member  28  of first clamp body  12  away from said forced engagement with the bottom side surface of the wood structure  200  by turning handle  30  rotationally (e.g., in a counter-clockwise direction). Then, the optional thumb screw  58  is loosened such that it is retracted from its opening  61  in clamp mount structure  26  and removed from the opening  61  and receiving opening  59  of bracket  44 . The brackets  42  and  44  are then unattached from clamp mount structure  26  by sliding first clamp body  12  away from clamp mount structure  26 . Specifically, protruding bodies  51  of bracket attachment portions  52  are withdrawn from releasable connection openings  54  by sliding edges of the openings  54  out of the channels  53  via open ends  49 . The side members  42  and  44  of first clamp body  12  are moved or slid away from clamp mount structure  26 . For example, the first clamp body  12  may be moved in a transverse direction (e.g., vertically downward) relative to the longitudinal direction of the 2×4 wood structure  200 . Clamp mount structure  26  can be lifted (e.g., in a vertical or Y-direction) to release any engagement of the teeth  56  with the top side of the wood structure  200 , and to remove the clamp mount structure  26  and adjustable clamp head  14  from the structure. Accordingly, first clamp body  12  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
     The order of removal or placement of any clamp assembly with respect to the 2×4 is not limiting. 
     It should also be understood that, in accordance with another embodiment, only one of the clamp assemblies in the clamp assembly pair  100  may comprise the removable connection and illustrated configuration as shown and described herein. That is, although both first and second clamp assemblies of the clamp assembly pair  100  are shown in the Figures to have a corresponding releasable connection, one of the clamp assemblies may include different attachment and mounting parts, and may be configured for attachment to a 2×4 or structural member in a different manner. 
     Moreover, in accordance with yet another embodiment, a single releasable connection is provided on a clamp assembly, rather than one provided on each side. In this embodiment, as shown in  FIGS. 10 and 11 , a side member or bracket is configured for pivotal movement away from the elongated structure when released.  FIG. 10  illustrates a perspective view of the alternate clamp assemblies  102 A and  104 A each with a clamp body in accordance with another embodiment of this disclosure. For purposes of clarity and brevity, like elements and components in  FIG. 10  are labeled with same designations and numbering as discussed with reference to  FIGS. 1-6 . Thus, although not discussed entirely in detail herein, one of ordinary skill in the art should understand that various features associated with the clamp body and assembly of  FIG. 10  are similar to those features previously discussed. 
     Specifically, like the clamp bodies described above, clamp body  12  shown in  FIG. 10  has an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure  200  on which the clamp assembly is to be mounted. A workpiece engaging head  14  is connected with the clamp body  12 . The clamp body  12  includes a movable member  28  arranged to be moved into forced engagement with an exterior surface (e.g., bottom surface) of the elongated structure  200  to fix the clamp body on the elongated structure  200  and that is also movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure  200 . 
     In the illustration shown in  FIG. 10 , the clamp body  12  is visibly shown on one side and associated with a clamp mount structure associated with an adjustable clamp head. However, the clamp body can also be connected with an anchored clamp head. In one embodiment, the clamp body  12  is configured to be mounted on elongated structure  200  in spaced relation relative to another clamp body. 
     The clamp assembly  102 A has at least one releasable connection that is constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, and as will be described in greater detail later, the clamp assembly  102 A has a releasable connection  40  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. 
     In an embodiment, the releasable connection is provided between upper portion  13  and lower portion  15  of the clamp body  12 . For example, in one embodiment, the releasable connection can be provided anywhere between its head  26  or  62  and the movable member  28  (and its associated lower portion  15 ). 
     In one embodiment, the releasable connection  40  is provided towards the upper portion  13  of the clamp body  12  and can be used to connect the upper portion  13  and lower portion  15 . For example, the clamp body  12  may employ portions of its side members  42  and  44  to be connected with the upper portion  13  or head  26  or  62 . As shown, in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates toconnect the upper and lower portions  13 ,  15 . In the illustrated exemplary embodiment of  FIG. 10 , the brackets or side members  42  and  44  of body  12  may also be considered or viewed as a first connector  42  and second connector  44  to connect the movable member  28  and base  46  to the workpiece engaging head  14  or  62 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from base  46 . 
     In various embodiments, one or both of the side members  42 ,  44  are pivotable with respect to the base  46  on lower portion  15  of first clamp body  12 .  FIGS. 10 and 11  show an example of only one of the side members  42  and  44  being pivotally connected to the base  46 . As shown in greater detail in  FIG. 11 , base  46  includes one or more openings  130  at an end thereof to enable at least one portion (e.g., side member  42  and/or  44 ) of clamp body  12  to move in pivotal relation to the base  46 . In  FIG. 11 , only one side of the clamp assembly  102 A and clamp body  12  are shown; however, the herein described features can be applied to either or both side members  42 ,  44  or brackets on either side of the clamp body  12 . 
     At least one portion of each of the side members  42  and  44  has a connector portion that is engagable and disengagable. In one embodiment, head  26  or  62  includes bracket attachment portions  52  on both of its sides for releasable connection with both side members  42  and  44 . In another embodiment, the head is integrally formed and permanently connected to one of the side members  42  or  44 . Each bracket attachment portion  52  includes a protruding body  51  with a channel  53  and at least one flange  57  on an outer edge of channel  53 . In one embodiment, a flange  57  is provided on opposing sides of each channel  53 . Channel  53  is provided to receive a portion of a bracket or a side member therein. 
     In one embodiment, an opening  130  is formed in base  46  and is configured to receive a lower portion  132  of a side member  42  therein (or two openings  130  can be provided on opposite sides of base  46  to receive lower portions of both side members  42  and  44 ) to form a rotatable joint for movement of the side member  42  towards and away from elongate structure  200 . The bottom portion  132  on the side member(s) is formed into a curved structure configured for insertion into opening  130  and formed around the edge of the base  46 . A curved bottom portion  132  can freely pivot within the opening  130  and rotate about an edge of the base  46 , as indicated by arrow H in  FIG. 10 . 
     At least of the side members  42  and  44  has a connector portion that is engagable and disengagable. Side members  42  and  44  can be configured for connection and disconnection with workpiece engaging head  14 , for example. In one embodiment, the head includes bracket attachment portions  52  on either of its sides for releasable connection with side members  42  and  44 . Each bracket attachment portion  52  includes a protruding body  51  with a channel  53  and at least one flange  57  on an outer edge of channel  53 . In one embodiment, a flange  57  is provided on opposing sides of each channel  53 . Channel  53  is provided to receive a portion of a bracket or a side member therein. Each flange  57  is configured to assist in maintaining receipt of a portion of the side member therein. 
     Specifically, one or each side member  42  and  44  can have a releasable connection opening  54  on an upper portion thereof. The releasable connection opening  54  on the side member is configured for receipt of the bracket attachment portion  52  on the anchored head  62  of the clamp assembly  102 A (or the bracket attachment portion  52  on the clamp mount structure  26 , depending on whether the clamp assembly  102 A has a clamp mount structure similar to the first clamp assembly  102  or an anchored head similar to the second clamp assembly  104 ). More specifically, the upper edge of each releasable connection opening  54  is configured for receipt within the channel  53  of a respective protruding body  51 . 
     In one embodiment, the opening(s)  54  are closed ended (not slots) and the side member ( 42  and/or  44 ) is simply pivoted so that the opening  54  rides over and received the protruding body  51 . The movable member  28  is then tightened as previously described. 
     Thus  FIGS. 10 and 11  show an optional embodiment that can include pivotal attachment of a clamp body  12  to elongate structure  200 . To attach a clamp assembly  102 A to a longitudinally positioned 2×4 wood structure  200 , for example, workpiece engaging head  14  is mounted on a (top) side surface of the 2×4 as shown in  FIG. 10 . The side members  42  and  44  of clamp the body  12  are aligned around sides of 2×4 wood structure  200  by rotating each about their rotatable joints in a substantially upward direction towards the head  14 , as indicated by arrow H. The curved bottom portion  132  of each side members  42 ,  44  is rotated within its respective opening  130  around an edge of the base  46  such that the connection openings  54  are aligned with the protruding bodies  51  of the bracket attachment portions  52 . The protruding bodies  51  are guided for receipt within connection openings  54 , and the edges of the bodies  51  are received within the channels  53  and held by flanges  57 . Then the movable member  28  is moved into contact with the (bottom) exterior surface of the 2×4. Specifically, handle  30  is rotated about its axis (e.g., in a clockwise direction) which in turn moves the screw threads  32  of movable member  28  through through hole portion  38 . As the movable member  28  is rotated using screw threads  32 , it is moved in a vertical direction into engagement with (bottom) exterior surface of wood structure  200 , thereby securing the clamp assembly  102 A to the 2×4. 
     Accordingly, it should also be understood be one of ordinary skill in the art, then, that, optionally, a method of releasing the releasable connection may further include pivoting the releasable connection away from the elongated structure. For example, to release the clamp assembly  102 A, the method of removal starts by moving the movable member  28  of the clamp body  12  away from said forced engagement with the bottom side surface of the wood structure  200  by turning handle  30  rotationally (e.g., in a counter-clockwise direction). The side members  42  and  44  of the clamp body  12  are then unattached from the head by lifting each side member such that at least upper edges of the openings  54  are removed away from channels  53  to clear flanges  57 . Each bracket is pivoted about its rotatable joint by moving the brackets substantially downwardly so that protruding bodies  51  are withdrawn from openings  54  and the curved bottom portions  132  rotate within their respective openings  130  around an edge of the base  46 . Then, the clamp body  12  is released from engagement with the head  14 . The side members  42 ,  44  can be lifted and rotated to release assembly of the clamp body  12  with the head  14  either separately or concurrently. The workpiece engaging head  14  can be lifted (e.g., in a vertical or Y-direction) to release any engagement with the top side of the wood structure  200 . Accordingly, the clamp body  12  of  FIGS. 10 and 11  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
     In still yet another embodiment, the releasable connection  40  of the clamp body  12  may be provided on its lower portion  15 , and still embody the features of the disclosed clamp assembly herein (e.g., including a movable member arranged to be moved into forced engagement with an exterior surface of the elongated structure to fix the clamp body on the elongated structure, the movable member being movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure and a releasable connection constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure without requiring the clamp body to be longitudinally slid past an end of the elongated structure). For example, one of ordinary skill in the art understands that a releasable connection  40  of the clamp body  12  can connect the clamp body  12  to its movable member  28  or base  46  for mounting on the elongated structure  200 . For example, the clamp body  12  may include connectors, e.g., in the form of releasable brackets, that are configured to be released from engagement with movable members  28  or base  46 . 
     In one embodiment, an end of each of the side members  42 ,  44  is connected to a relative workpiece engaging head  14  on upper portions  13  of the clamp body  12 . In another embodiment, an end of each of the side members  42 ,  44  is integrally formed with the workpiece engaging head  14  or the clamp mount structure  26  on upper portions  13  of the clamp body  12 . 
       FIGS. 12-14  show a further embodiment, comprising a first clamp assembly  102 B and a second clamp assembly  104 B wherein side members  42  and  44  are integrally formed (e.g., integrally forged or molded) with the clamp mount structure  26  and/or anchored clamp head  62 . In this embodiment, the first clamp assembly  102 B and the second clamp assembly  104 B each have a releasable connection  40  provided towards the lower portion  15  of the clamp body  12  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. In this embodiment, the releasable connection  40  comprises a latch configured to capture a portion of the base  46  to lock the clamp body  12  around the elongated structure. For purposes of clarity and brevity, like elements and components in  FIGS. 12-14  are labeled with same designations and numbering as discussed with reference to  FIGS. 1-6 . Thus, although not discussed entirely in detail herein, one of ordinary skill in the art should understand that various features associated with the clamp body and assembly of  FIGS. 12-14  are similar to those features previously discussed. 
     Like the clamp bodies described above, each clamp body  12  shown in  FIG. 12  has an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure  200  on which the clamp assembly is to be mounted. A workpiece engaging head  14  is connected with the clamp body  12 . The clamp body  12  includes a movable member  28  arranged to be moved into forced engagement with an exterior surface (e.g., bottom surface) of the elongated structure  200  to fix the clamp body on the elongated structure  200  and that is also movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure  200 . 
     The clamp assemblies  102 B and  104 B have at least one releasable connection that is constructed and arranged to be released so that the clamp assembly can be assembled on and/or released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, the clamp assemblies  102 B and  104 B have a releasable connection  40  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. 
     The clamp body  12  may employ portions of its side members  42  and  44  to be connected with the lower portion  15  or movable member  28 . As shown, in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates to connect the side members  42  and  44 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from clamp mount structure  26  or anchored clamp head  62 . 
     In the illustrated exemplary embodiment of  FIGS. 13 and 14 , showing exemplary details related to first clamp assembly  102 B, the base  46  of movable member  28  may be considered or viewed as a releasable connector that is used to connect the movable member  28  and side members  42  and  44  of the clamp body  12 . The base  46  is pivotable with respect to one of the side members  42  or  44  via pivot hinge connection  60  on lower portion  15  of the clamp body  12 .  FIGS. 13 and 14  show an example of base  46  in the form of a releasable latch bar configured to releasably connect with a lock ring  74  of latch  40 . Specifically one end of the latch bar of base  46  is pivotally connected to side member  42 , and a lever  72  of latch (removable connection)  40  is hingedly connected to side member  44 . However, as evidenced by the features shown in  FIG. 12  with respect to second clamp assembly  104 B, base  46  may be configured to be Pivotally connected to side member  44 , and lever  72  hingedly connected to side member  42 . Accordingly, it should be understood by one of ordinary skill in the art that the features described with regard to first clamp assembly  102 B are not limiting. Further, first clamp assembly  102 B may have, in one embodiment, a similar configuration as second clamp assembly  104 B, and/or latch  40  associated with side member  44 . 
     Referring back to  FIG. 13 , in this illustration of first clamp assembly  102 B, the connection end of the latch bar of base  46  is aligned within a receiving area  66  on a bottom portion of the side member  42 . The receiving area  66  includes integrated leg or foot members configured to substantially surround sides of the connection end of the base  46 . The leg members have holes  68  therethrough. Base  46  also includes one or more through hole openings at its connection end that are aligned with the holes  68  of the side member  42  and configured to receive a pivot pin, for example, therethrough to form the pivot hinge connection  60  and thus form a rotatable joint for movement of the base  46  towards and away from elongate structure  200 . The latch bar of base  46  of clamp body  12  is configured to move at its connection end in pivotal relation to the side member  42 . 
     Latch  40  includes lever  72 , lock ring  74 , and base  46  that can be moved between an unlocked position (e.g., see  FIG. 13 ) and a locked position (e.g., see  FIG. 14 ). Lever  72  is hingedly connected at a lower portion of side member  44  via hinge  70 . Lock ring  74  is connected to lever  72  which is configured to cooperatively move lock ring  74  between locked and unlocked positions. One of ordinary skill in the art generally understands the formation and operation of such a latch, and therefore the parts are not discussed in great detail herein. 
     The opposite end of base  46  is a lock end configured to be releasably captured and at least temporarily secured by lock ring  74 . More specifically, the opposite end of the latch bar acts as a connector portion that is engagable and disengagable with lock ring  74  of latch  40 . In one embodiment, the opposite end includes a receiving area  76  configured for alignment and connection with lock ring  74 . The receiving area  76  on the base  46  is configured for receipt of a portion of lock ring  74  therein when it is aligned on top of lock ring  74 . Once lock ring  74  is aligned with base  46 , the lever  72  can be pivoted upwardly towards upper portion  13 . The handle  72  is configured to rotate about its hinge  70  to pull base  46  upwardly about its pivot hinge connection  60  to secure at least contact portion  34  of base  46  against a side (bottom) portion of the elongated structure  200 . The movable member  28  is accordingly tightened against the elongated structure via movement of the lever  72  into a locked position, as shown in  FIG. 14 . 
     Thus  FIGS. 12-14  show an optional embodiment that can include pivotal attachment of a clamp body  12  to elongate structure  200 . To attach a clamp assembly  102 B to a longitudinally positioned 2×4 wood structure  200 , for example, workpiece engaging head  14  is mounted on a (top) side surface of the 2×4. The side members  42  and  44  of clamp the body  12  are aligned around sides of 2×4 wood structure  200 . The base  46  can be rotated about its pivot hinge connection  60 , as indicated by arrow J in  FIG. 13 , for alignment of its receiving area  76  on lock ring  74  by rotating it in a substantially upward direction, towards a bottom side of the elongated structure  200 . The lock ring  74  is received within receiving area  76  of base  46 . Then the base  46  of the movable member  28  is moved into contact with the (bottom) exterior surface of the 2×4. Specifically, handle  72  is rotated about its hinge  70  (e.g., in a clockwise direction) towards upper portion  13  of the clamp body  12 , as indicated by arrow K in  FIG. 13 , which in turn pulls, the lock ring  74  up, which in turn moves the base  46  of movable member  28  pivotally and substantially in a vertical, upward direction with respect to elongated structure  200 . As the base  46  of the movable member  28  is rotated and locked, it is moved in a vertical direction into engagement with (bottom) side surface of wood structure  200 , via contact portion  34 , thereby securing the clamp assembly  102 B to the 2×4. 
     Accordingly, it should also be understood be one of ordinary skill in the art, then, that, optionally, a method of releasing the releasable connection  40  may further include pivoting the releasable connection (e.g., base  46 ) away from the elongated structure. For example, to release the clamp assembly  102 B, the method of removal starts by rotating the lever  72  downwardly towards lock ring  74  (e.g., in a counter-clockwise direction) so that the base  46  is moved away from said forced engagement with the bottom exterior surface of the wood structure  200 . The contact portion  34  of base  46  is released from contact and the base  46  moves pivotally downwardly. The base  46  can then be moved out of connection with lock bar  46  by lifting the latch bar at its opposite end away from lock ring  74 . The base  46  is pivoted about its pivot hinge connection  60  away from the lever  72 . Then, the clamp body  12  is released from engagement with the elongated structure  200 . The head  14  and side members  42 ,  44  can be lifted to release the clamp body  12  (e.g., in a vertical or Y-direction) from engagement with the top side of the wood structure  200 . Accordingly, the clamp body  12  of  FIGS. 12-14  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
       FIGS. 15 and 16  show yet a further embodiment comprising a first clamp assembly  102 C and a second clamp assembly  104 C wherein side members  42  and  44  are integrally formed (e.g., integrally forged or molded) with the clamp mount structure  26  and/or anchored clamp head  62 . In this embodiment, the first clamp assembly  102 C and the second clamp assembly  104 C each have a releasable connection  40  provided towards the lower portion  15  of the clamp body  12  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. In this embodiment, handle  30  in the form of a torque bar, base  46 , and a rotatable cam  84  are used to lock the clamp body  12  around the elongated structure  200 . In this embodiment, base  46  takes the form of a removable and rotatable rod. For purposes of clarity and brevity, again, like elements and components in these Figures are labeled with same designations and numbering as discussed with reference to  FIGS. 1-6 . Thus, although not discussed entirely in detail herein, one of ordinary skill in the art should understand that various features associated with the clamp body and assembly of  FIGS. 15-16  are similar to those features previously discussed. 
     Like the clamp bodies described above, each clamp body  12  shown in  FIG. 15  has an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure  200  on which the clamp assembly is to be mounted. A workpiece engaging head  14  is connected with the clamp body  12 . The clamp body  12  includes a movable member  28  arranged to be moved into forced engagement with an exterior surface (e.g., bottom surface) of the elongated structure  200  to fix the clamp body on the elongated structure  200  and that is also movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure  200 . 
     The clamp assemblies  102 C and  104 C have at least one releasable connection  40  that is constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, the clamp assemblies  102 C and  104 C have a releasable connection  40  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. 
     The clamp body  12  may employ portions of its side members  42  and  44  to be connected with the lower portion  15  or movable member  28 . As shown, in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates to connect the side members  42  and  44 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from clamp mount structure  26  or anchored clamp head  62 . 
     In the illustrated exemplary embodiment of  FIGS. 15 and 16 , releasable connection  40  includes base  46  of the movable member  28  and an internal pivot pin  82 . The base  46  of movable member  28  is a part of the releasable connector that is used to connect the side members  42  and  44  of the clamp body  12 . The base  46  is pivotable with respect to both of the side members  42  and  44  via movement of an internal pivot pin  82  (shown in phantom in the Figures) on lower portion  15  of the clamp body  12 . Specifically, each side member  42  and  44  includes a hole (not shown) at its lower portion  15 . Base  46  is configured to be inserted into and aligned in an area between the bottom portions of the side members  42  and  44 . The base  46  includes a through opening extending through its body (e.g., through the rod) and a cam member  84 . Its through opening is aligned with the holes of the side members  42  and  44  in order to receive internal pivot pin  82  therethrough. The pivot pin  82  is keyed to be rotationally locked to rotate the base  46 . The pivot pin  82  can be held in place once placed through side members  42  and  44  and base  46  by a cotter pin. For example, as is understood by one of ordinary skill in the art, an end of the pivot pin  82  that is designed for insertion through the through holes (i.e., the end opposite to the end including handle  30 )(not shown) may extend past an outer surface of a side member (e.g., side member  42 ) when the clamp body  12  is assembled. The extended end may include an opening (not shown) therein that is perpendicular to its rotational axis and that is configured to receive ends of a cotter pin or spring pin (or similar temporary fastener) therethrough to hold the pivot pin  82  connection with side members  42 ,  44 , and base  46 , while still allowing for relative rotation of the base  46  with respect to the side members  42  and  44 . The pivot pin  82  is also part of the movable member  28 . The pivot pin  82  is configured to extend substantially horizontally when assembled and forms a rotatable joint for movement of the cam member  84  of base  46  towards and away from elongate structure  200 . Cam member  84  includes contact portion  34  whose flat surface can engage a surface of the elongated structure  200  as well as acts as a stop or lock when the clamp body  12  is installed. The engagement of cam member  84  with elongated structure  200  provides a force on the elongated structure  200  to secure a clamp head ( 26  or  62 ) thereto. 
     In an embodiment, a handle  30  is mounted on or with an end of the movable member  28  to initiate rotational movement of the base  46  and its cam member  84  for movement of the contact portion  34  into and out of engagement with elongated structure  200  between locked and unlocked positions. In an embodiment, the handle  30  is rotated upwardly to move cam member  84  into a locked position, and rotated downwardly to move cam member  84  into an unlocked position. The handle  30  can extend perpendicularly to the pivot pin  82  and base  46  of the movable member  28  when assembled. In an embodiment, handle  30  is provided in the form of a torque bar that is attached to an end of the pivot pin  82 . 
     The illustrated features shown in  FIG. 15  show handles  30  of the first and second clamp assemblies  102 C and  104 C provided on the same side when mounted on the elongated structure  200 . Specifically, handle  30  is provided adjacent to side member  44  in first clamp assembly  102 C and handle  30  is provided adjacent to side member  42  in second clamp assembly  104 C. However, a handle can be mounted on either side of the clamp body  12 . Accordingly, it should be understood by one of ordinary skill in the art that the location of the handle  30  when mounted with the clamp body  12  is not limiting. Because the handle  30  and pivot pin  82  are connected to the side members  42  and  44  and base  46 , a user may select the configuration for insertion without departing from the scope of this disclosure. 
     Thus  FIGS. 15 and 16  show an optional embodiment for attachment of a clamp body  12  to elongate structure  200 . To attach a clamp assembly  102 C to a longitudinally positioned 2×4 wood structure  200 , for example, workpiece engaging head  14  is mounted on a (top) side surface of the 2×4. The side members  42  and  44  of clamp the body  12  are aligned around sides of 2×4 wood structure  200 . The base  46  is inserted between the bottom ends of the side members  42  and  44  and their holes are aligned. Its cam member  84  is positioned facing away (e.g., towards the floor) from a side of the elongated structure  200 . The pivot pin  82  of the movable member  28  is inserted through the aligned holes of the side member  44 , base  46 , and side member  42  (or vice versa, i.e., through side member  42 , base  46 , and side member  44 ). The pivot pin  82  is secured to the clamp body  12  via a cotter pin or other fastener. Handle  30  is rotated about its axis, as shown by arrow L in  FIG. 15 , to move the cam member  84  of base  46  rotatably upwardly towards a bottom side of elongated structure  200 . For example, handle  30  can be rotated from a lower position (e.g., see clamp assembly  104 C in  FIG. 15 ) towards upper portion  13  of the clamp body  12  (e.g., see clamp assembly  102 C in  FIG. 15  and  FIG. 16 ) to engage the elongated structure  200  and lock the clamp body  12 . As the movable member  28  is rotated, contact portion  34  is moved into forced engagement with (bottom) exterior surface of wood structure  200 , thereby securing the clamp assembly  102 C to the 2×4. 
     Conversely, the method of releasing and removing the clamp assembly from an elongated structure  200  (2×4) includes steps that are substantially opposite to those described and above. To release the clamp assembly  102 C, for example, the method of removal starts by loosening the movable member  28  of the clamp body  12  away from said forced engagement with the bottom side surface of the wood structure  200  by turning handle  30  rotationally (e.g., in a downward direction). The contact portion  34  of cam member  84  of base  46  is released from contact and the cam member  84  is moved rotatably downwardly, for example. Then, the clamp body  12  is released from engagement with the elongated structure  200 . The cotter pin or fastener is removed from the end of the pivot pin  82 . The pivot pin  82  can then be pulled from the side members  42  and  44  and base  46 . The base  46  is removed from the area between the side members  42  and  44 . The head  14  and side members  42 ,  44  can be lifted to release the clamp body  12  (e.g., in a vertical or Y-direction) from engagement with the top side of the wood structure  200 . Accordingly, the clamp body  12  of  FIGS. 15 and 16  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
     In accordance with another embodiment,  FIG. 17  illustrates a perspective view of alternate clamp assemblies  102 D and  104 D each with a clamp body. For purposes of clarity and brevity, as noted above, like elements and components in  FIG. 17  are labeled with same designations and numbering as discussed with reference to  FIGS. 1-6 . Thus, although not discussed entirely in detail herein, one of ordinary skill in the art should understand that various features associated with the clamp body and assembly of  FIG. 17  are similar to those features previously discussed. 
     Like the clamp bodies described above, clamp body  12  shown in  FIG. 17  has an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure  200  on which the clamp assembly is to be mounted. A workpiece engaging head  14  is connected with the clamp body  12 . The clamp body  12  includes a movable member  28  arranged to be moved into forced engagement with an exterior surface (e.g., bottom surface) of the elongated structure  200  to fix the clamp body on the elongated structure  200  and that is also movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure  200 . 
     The clamp assemblies  102 D and  104 D each have at least one releasable connection that is constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, and as will be described in greater detail later, the clamp assemblies  102 D and  104 D have a releasable connection  40  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. 
     In an embodiment, the releasable connection is provided between upper portion  13  and lower portion  15  of the clamp body  12 . For example, in one embodiment, the releasable connection can be provided anywhere between its head  14  and the movable member  28  (and its associated lower portion  15 ). 
     In one embodiment, the releasable connection  40  is provided towards the lower portion  15  of the clamp body  12 . For example, the clamp body  12  may employ portions of its side members  42  and  44  to be connected to secure the clamp body  12  to the elongated structure  200 . As shown, in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates to connect the lower portions  15  of the side members  42  and  44 . In the illustrated exemplary embodiment of  FIG. 17 , the brackets or side members  42  and  44  of body  12  may also be considered or viewed as a first connector  42  and second connector  44  as well as the movable member  28 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from its head. 
     In various embodiments, one or both of the side members  42 ,  44  are pivotable with respect to their head  26  or  62  on upper portion  13  of the clamp body  12 .  FIG. 17  shows an example of both of the side members  42  and  44  being pivotally connected to their heads  26  and  62 . The clamp mount structure  26  and anchored clamp head  62  include pivot hinge connections  86  on either of its sides for pivotal connection with side members  42  and  44 . Specifically, a portion of each side member  42  and  44  is formed into a curved structure  85  configured for connection with arms  88  extending from clamp mount structure  26  or anchored clamp head  62 . The curved structure  85  can freely pivot within arms  88  and rotate relative to the heads  26  or  62 . 
     At least one of the side members  42  and  44  has a connector portion that is engagable and disengagable. Side members  42  and  44  can be configured for connection and disconnection with each other, for example. In one embodiment, the side members  42  and  44  are provided in the form of brackets that each have angled surfaces  90  at a lower portion  15  of the clamp body  12  and receiving holes  92  for releasable connection of a lock bar  94 . The angled surfaces  90  are provided to wedge against the elongated structure  200  when the clamp body  12  is locked thereon. The receiving holes  92  are provided on straight portions below the angled surfaces  90  and are configured to receive at least a portion of lock bar  94 . The receiving holes  92  can have threads therein and lock bar  94  can be a threaded bar with screw threads, for example. A handle  30  can be attached to the lock bar  94  for its rotation. The threaded lock bar  94  can be attached through the holes  92  of the straight portions of the side members  42  and  44  and secured with a nut, for example. As the threaded lock bar  94  is tightened, the lower portions of side members  42  and  44  can be moved towards each other such that angled surfaces  90  are also moved into engagement with surfaces (side corners) of elongated structure  200 . Movement of the angled surfaces  90  into engagement with the surfaces of the elongated structure  200  provides pressure to the clamp body  12  and secure its head  26  or  62  thereon. Accordingly, each of the angled surfaces  90  act in combination as a movable member that is movable away from and into forced engagement to allow for loosening or tightening of the clamp body with the elongated structure  200 . 
     The illustrated features shown in  FIG. 17  show handles  30  of the first and second clamp assemblies  102 D and  104 D provided on the same side for mounting on the elongated structure  200 . Specifically, handle  30  is provided adjacent to side member  44  in first clamp assembly  102 C and handle  30  is provided adjacent to side member  42  in second clamp assembly  104 C. However, a handle can be mounted on either side of the clamp body  12 . Accordingly, it should be understood by one of ordinary skill in the art that the location of the handle  30  when mounted with the clamp body  12  is not limiting. Because the handle  30  and threaded lock bar  94  are connected to the side members  42  and  44 , a user may select the configuration for insertion without departing from the scope of this disclosure. 
     Thus  FIG. 17  shows an optional embodiment that can include pivotal attachment of a clamp body  12  to elongate structure  200 . To attach a clamp assembly  102 D to a longitudinally positioned 2×4 wood structure  200 , for example, workpiece engaging head  14  is mounted on a (top) side surface of the 2×4. The side members  42  and  44  of clamp the body  12  are aligned around sides of 2×4 wood structure  200  by rotating each about their pivot hinge connections  86  in a substantially downward direction towards the lower portion  15 . The curved structure  85  of each side members  42 ,  44  is rotated relative to arms  88  of the clamp mounting structure  26  such that the receiving holes  92  of the side members  42  and  44  are substantially parallel to each other. The lock bar  94  is guided for receipt within aligned receiving holes  92  of the straight portions of side members  42  and  44 , and a nut it attached to an end of the lock bar  94 . The lock bar  94  is tightened and moves side members  42  and  44  closer together. Accordingly the movable member  28  of the clamp body  12 , i.e., the angled surfaces  90  of each side member  42  and  44 , is moved into contact with the exterior surface (side corners) of the 2×4. Specifically, handle  30  is rotated about its axis (e.g., in a clockwise direction) which in turn moves and tightens the screw threads of lock bar  94 . As the lock bar  94  is rotated, angled surfaces  90  of side members  42  and  44  are is moved in a relative (substantially horizontal) direction towards each other and into engagement with the opposite exterior surfaces (corners) of wood structure  200 , thereby securing the clamp assembly  102 D to the 2×4. 
     Accordingly, it should also be understood be one of ordinary skill in the art, then, that, optionally, a method of releasing the releasable connection may further include pivoting the releasable connection away from the elongated structure. For example, to release the clamp assembly  102 D, the method of removal starts by removing the nut and turning the handle  30  rotationally in an opposite direction (e.g., in a counter-clockwise direction) to rotate the lock bar  94  such that the angled surfaces  90  of the movable member  28  of the clamp body  12  are moved relatively away from each other and from said forced engagement with the exterior surfaces (side corners) of the wood structure  200 . Once the lock bar  94  is unscrewed from the side members  42  and  44 , and removed from engagement therewith, the side members  42  and  44  of the clamp body  12  are then unattached from the elongated structured  200  by lifting and pivoting each side member towards the upper portion  13  about the pivot hinge connections  86 . Then, the clamp body  12  is released from engagement with the head  14 . The workpiece engaging head  14  can be lifted (e.g., in a vertical or Y-direction) to release any engagement with the top side of the wood structure  200 . Accordingly, the clamp body  12  of  FIG. 17  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
       FIGS. 18-21  show still yet another embodiment comprising a first clamp assembly  102 E and a second clamp assembly  104 E wherein side members  42  and  44  are connected to the clamp mount structure  26  and/or anchored clamp head  62 , in accordance with an embodiment. As shown in  FIG. 20 , for example, the side members  42  and  44  may be integrally formed with a horizontal base member  114  (e.g., integrally forged or molded) that is configured to be attached to a clamp head (e.g., anchored clamp head  26 ). Base member  114  includes openings  98  therein for receipt of fasteners (e.g., bolts). The fasteners are inserted through the openings  98  to connect the base member  114  and side members  42  and  44  to the clamp head. 
     Further, in this embodiment, the first clamp assembly  102 E and the second clamp assembly  104 E each have a releasable connection  40  provided towards the lower portion  15  of the clamp body  12  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. For purposes of clarity and brevity, like elements and components in  FIGS. 18-21  are labeled with same designations and numbering as discussed with reference to  FIGS. 1-6 . Thus, although not discussed entirely in detail herein, one of ordinary skill in the art should understand that various features associated with the clamp body and assembly of  FIGS. 18-21  are similar to those features previously discussed. 
     Like the clamp bodies described above, each clamp body  12  shown in  FIG. 18  has an upper portion  13  and a lower portion  15  and is configured to engage an elongated structure  200  on which the clamp assembly is to be mounted. A workpiece engaging head  14  is connected with the clamp body  12 . The clamp body  12  includes a movable member  28  arranged to be moved into forced engagement with an exterior surface (e.g., bottom surface) of the elongated structure  200  to fix the clamp body on the elongated structure  200  and that is also movable away from said forced engagement to allow the clamp body to be loosened from the elongated structure  200 . 
     The clamp assemblies  102 E and  104 E have at least one releasable connection that is constructed and arranged to be released so that the clamp assembly can be installed on and released from the elongated structure  200  without requiring the relative clamp body to be longitudinally slid over or past an end of the elongated structure. For example, in one embodiment, the clamp assemblies  102 E and  104 E have a releasable connection  40  that is constructed and arranged for attachment and release of the clamp body  12  with a 2×4. 
     The releasable connection  40  is provided towards the lower portion  15  of the clamp body  12  and can be used to connect the upper portion  13  and lower portion  15 . For example, the clamp body  12  may employ portions of its side members  42  and  44  to be removably connected with a base  46 . As shown in  FIG. 18 , in this embodiment, the clamp body  12  will surround an elongated structure  200  when the connection  40  operates to connect the upper and lower portions  13 ,  15 . The brackets or side members  42  and  44  of body  12  may also be considered or viewed as a first connector  42  and second connector  44  to connect the movable member  28  and base  46  to the workpiece engaging head  14 . Each bracket or side member  42  and  44  can extend substantially vertically (or substantially perpendicularly) from base  46 . 
     The base  46  is pivotable with respect to one of the side members  42  or  44  via pivot hinge  106  on lower portion  15  of the clamp body  12 .  FIGS. 19 and 20  show an example of base  46  in the form of a releasable latch portion configured to releasably connect with a receiving opening  122 . Specifically, in this exemplary illustration, one end  120  of the latch portion of base  46  is pivotally connected to side member  44 , while the other end is a connection end configured for alignment with and receipt in receiving opening  122  of side member  42 . The receiving opening  122  includes a flange  124  configured to hold at least a bottom portion of the connection end  120  within the receiving opening  122 . However, it should also be understood to one of ordinary skill in the art that the illustration is exemplary only, and that, in accordance with one embodiment, base  46  may be configured to be pivotally connected to side member  42 , and receiving opening  122  within side member  44 . Accordingly, the features described in greater detail below with regard to second clamp assembly  104 E in  FIGS. 19-21  are not limiting. 
     As shown in greater detail in  FIG. 21 , the other end of base  46  has a curved portion  110  that is connected to curved ends  108  of side member  44  via a pivot pin  112 . This forms the pivot hinge connection  106  and thus a rotatable joint for movement of the base  46  towards and away from elongate structure  200 . The base  46  of clamp body  12  is configured for pivotal relation relative to the side member  44 . Moreover, the base  46  is configured to move horizontally along pivot pin  112 . That is, curved portion  110  of base  46  is configured for movement between curved ends  108  of side member  44  to allow for movement of connection end  120  into and out of receiving opening  122  on side member  42 , which is described in greater detail below. 
     Base  46  further includes a through hole portion  38  through which first movable member  28  extends. First movable member  28  has screw threads  32  that cooperate with corresponding threads in through hole portion  38  so that contact portion  34  is moved into or out of engagement with the 2×4. In an embodiment, a handle  30  is mounted on or with another end of first movable member  28  to initiate rotational movement thereof and movement of contact portion  34 . In one embodiment, contact portion  34  can include a plurality of extended engagement portions or teeth  35  configured for contact with elongated structure  200 . 
     As previously noted, the opposite end of base  46  is a connection end  120  configured to be releasably captured and at least temporarily secured within receiving opening  122  of side member  42 . More specifically, the connection end  120  of the base  46  acts as a connector portion that is engagable and disengagable with side member  42 . The connection end  120  is configured to be received within receiving opening  122  via an open end  126  and at least temporarily held therein by flange  124 . Flange  124  is provided to retain at least a lower and side edge of the connection end  120  of base  46  within receiving opening  122  when the end  120  is connected to side member  42 . In an embodiment, the flange  124  is configured to assist in maintaining connection of side members  42  and  44  with the base  46 . Once upper portion  13  is provided on the elongated structure  200 , the base  46  can be pivoted upwardly towards upper portion  13 . The curved portion  110  of base  46  is configured to rotate about pivot pin  112  and connection end  120  is inserted into receiving opening  122  of side member  42 . The movable member  28  is then tightened as previously described. 
     Thus  FIGS. 18-21  show an optional embodiment that can include pivotal attachment of a clamp body  12  to elongate structure  200 . To attach a clamp assembly  104 E to a longitudinally positioned 2×4 wood structure  200 , for example, workpiece engaging head  14  is mounted on a (top) side surface of the 2×4. The side members  42  and  44  of clamp the body  12  are aligned around sides of 2×4 wood structure  200 . The base  46  can be rotated about its pivot hinge connection  106  for alignment with receiving opening  122  on side member  42  by rotating it in a substantially upward direction, towards a bottom side of the elongated structure  200 . The connection end  120  of base  46  is aligned with open end  126  of the receiving opening  122  and the base  46  is moved horizontally via its curved portion  110  along pivot pin  112  and into receiving opening  122 . Once the connection end  120  is received within receiving opening  122 , it is held by flange  124 . Then the movable member  28  is moved into contact with the (bottom) exterior surface of the 2×4. Specifically, handle  30  is rotated about its axis (e.g., in a clockwise direction) which in turn moves the screw threads  32  of movable member  28  through through hole portion  38 . As the movable member  28  is rotated using screw threads  32 , it is moved in a vertical direction into engagement with (bottom) exterior surface of wood structure  200 , thereby securing the clamp assembly  102 A to the 2×4. 
     Accordingly, it should also be understood be one of ordinary skill in the art, then, that, optionally, a method of releasing the releasable connection  40  may further include pivoting the releasable connection (e.g., base  46 ) away from the elongated structure. For example, to release the clamp assembly  104 E, the method of removal starts by moving the movable member  28  of the clamp body  12  away from said forced engagement with the bottom exterior surface of the wood structure  200  by turning handle  30  rotationally (e.g., in a counter-clockwise direction). The connection end  120  of the base  46  can then be moved out of receiving opening  122  of side member  42  by lifting the end  120  over flange  124  and moving base  46  horizontally along pivot pin  110  and out of the open end  126  of the receiving opening  122 . The base  46  is then pivoted about its pivot hinge connection  106  away from the side member  42 . Then, the clamp body  12  is released from engagement with the elongated structure  200 . The head  62  and side members  42 ,  44  can be lifted to release the clamp body  12  (e.g., in a vertical or Y-direction) from engagement with the top side of the wood structure  200 . Accordingly, the clamp body  12  of  FIGS. 18-21  is released from the wood structure  200  without requiring the clamp body  12  to be longitudinally slid past an end thereof. 
     The structure of base  46  and side members  42  and  44  in any of the embodiments described with respect to  FIGS. 10-21  can be manufactured via stamping, forging, and/or threading processes, for example. 
     In accordance with various embodiments as disclosed herein, the base or bottom member  46  of the clamp body  12  (or attached to the clamp body  12 ) may itself operate as the movable member  28  that is forced into engagement with an exterior (or side) surface of the elongated structure  200 . In other embodiments described herein, the movable member  28  is separate from the base member  46  and movable relative to the base member  46  into engagement with the exterior surfaces of the elongated structure  200 . 
     While the features of the disclosure have been made clear in the illustrative embodiments set forth above, it will be apparent to those skilled in the art that various modifications may be made to the structure, arrangement, proportion, elements, materials, and components used in the practice of the disclosure. 
     It will be realized, however, that the foregoing preferred specific embodiments have been shown and described for the purpose of illustrating the functional and structural principles of this disclosure and are subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.