Golf club head with adjustable resting surface angle

Abstract

To provide a golf club head having a multi-component resting face angle adjuster that allows adjustment of a resting face angle of the golf club head.SOLUTION: A golf club head 10 includes a club body and a resting face angle adjuster 200. The club body includes a crown opposite a sole, a toe end opposite a heel end, a back end opposite a face, and a hosel. The sole includes a sole surface. The resting face angle adjuster 200 includes an adjustment member having a keel surface, and a recess formed in the sole such that a portion of the sole surface at least partially bounds the recess. The adjustment member is disposed in the recess and positionable between a first adjustment position and a second adjustment position. In the first adjustment position, the keel surface is at a first distance relative to the portion of the sole surface. In the second adjustment position, the keel surface is at a second distance relative to the portion of the sole surface, the second distance being not equal to the first distance in the direction.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to co-pending U.S. Provisional Application No. 62 / 501,873, filed May 5, 2017, co-pending U.S. Provisional Application No. 62 / 506,387, filed May 15, 2017, and co-pending U.S. Provisional Application No. 62 / 658,437, filed April 16, 2018, the contents of all of which are incorporated in their entirety. [Background technology]

[0002] Various characteristics of a golf club can affect the performance of the golf club, including the location of the center of gravity and the rest plane angle. Summary of the Invention [Means for solving the problem]

[0003] In one aspect, the present disclosure provides a golf club head including a club body and a rest surface angle adjuster. The club body has a crown opposite a sole, a toe end opposite a heel end, a back end opposite a face, and a hosel. The sole includes a sole surface. The rest surface angle adjuster includes an adjustment member having a keel surface and a recess formed in the sole such that a portion of the sole surface at least partially bounds the recess. The adjustment member is disposed within the recess and is positionable between a first adjustment position and a second adjustment position. When the adjustment member is positioned in the first adjustment position, the keel surface is at a first distance relative to the portion of the sole surface in a direction perpendicular to the portion of the sole surface. When the adjustment member is positioned in the second adjustment position, the keel surface is at a second distance unequal to the first distance relative to the portion of the sole surface in the direction.

[0004] In another aspect, the present disclosure provides a golf club head including a club body and a rest surface angle adjuster. The club body has a crown opposite a sole, a toe end opposite a heel end, a back end opposite a face, and a hosel. The sole includes a sole surface. The rest surface angle adjuster includes an adjustment member positionable within a recess formed in the sole and defining a recess edge. The adjustment member has a keel surface and is positionable between a first adjustment position and a second adjustment position. When the adjustment member is positioned in the first adjustment position, a portion of the keel surface is at a first distance from a portion of the recess edge. When the adjustment member is positioned in the second adjustment position, the portion of the keel surface is at a second distance from a portion of the recess edge that is greater than the first distance.

[0005] In another aspect, the present disclosure provides a golf club head including a club body and a rest surface angle adjuster. The club body has a crown opposite a sole, a toe end opposite a heel end, a back end opposite a face, and a hosel. The sole includes a sole surface. The rest surface angle adjuster includes an adjustment member positionable within a recess formed in the sole. The adjustment member has a keel surface positionable between a first adjustment position and a second adjustment position. The rest surface angle adjuster is configured such that when the adjustment member is positioned in the first adjustment position, the adjustment member provides a keel point at a first position of the club body when the club head is in an address position. When the adjustment member is positioned in the second adjustment position, the adjustment member provides a keel point at a second position of the club body when the club head is in an address position.

[0006] In another aspect, the disclosure provides a golf club head including a club body and a rest surface angle adjuster. The club body has a crown opposite a sole having a sole surface, a toe opposite a heel end, a back end opposite a face, a hosel, and a hosel recess having a hosel surface configured to receive a fastener for securing a club shaft to the club body. The hosel recess defines a recess edge. A portion of the sole surface bounds the recess edge. The rest surface angle adjuster includes an adjustment member disposed within the hosel recess, the adjustment member having a keel surface. The adjustment member is positionable between a first adjustment position and a second adjustment position. The adjuster is configured such that when the adjustment member is positioned in the first adjustment position, the keel surface is at a first distance relative to a portion of the sole surface in a direction perpendicular to the portion of the sole surface. When the adjustment member is positioned in the second adjustment position, the keel surface is at a second distance unequal to the first distance relative to the portion of the sole surface in the direction. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of a golf club head including one or more embodiments of a rest surface angle adjuster as disclosed herein.

[0008] [Diagram 2] FIG. 2 is a front view of the golf club head of FIG. 1, showing the face plate.

[0009] [Figure 3A] FIG. 2 is a top (or crown) view of the golf club head of FIG. 1.

[0010] [Figure 3B] 3B is a cross-sectional side view of the golf club head of FIG. 1 taken along line 3B-3B of FIG. 3A.

[0011] [Figure 4] 2 is another perspective view of the golf club head of FIG. 1 including an adjustment member.

[0012] [Diagram 5] FIG. 5 is an exploded perspective view of a portion of the golf club head of FIG. 4.

[0013] [Figure 6] 2 is a perspective view of a portion of the golf club head of FIG. 1 showing an adjustment member in a first position.

[0014] [Figure 7] 2 is another perspective view of the portion of the golf club head of FIG. 1, showing the adjustment member in a second position.

[0015] [Figure 8] 8 is a cross-sectional view of a portion of the golf club head of FIG. 1 taken along line 8-8 of FIG. 6.

[0016] [Figure 9] 9 is another cross-sectional view of the portion of the golf club head of FIG. 1 taken along line 9-9 of FIG. 7.

[0017] [Figure 10] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0018] [Figure 11] FIG. 11 is an exploded perspective view of the golf club head of FIG.

[0019] [Figure 12] 11 is a perspective view of a portion of the golf club head of FIG. 10 showing the adjustment member in a first position.

[0020] [Figure 13] 11 is another perspective view of the portion of the golf club head of FIG. 10 showing the adjustment member in a second position.

[0021] [Figure 14]11 is another perspective view of the portion of the golf club head of FIG. 10, showing the adjustment member in a third position.

[0022] [Figure 15] 15 is a cross-sectional view of a portion of the golf club head of FIG. 10 taken along line 15-15 of FIG. 12.

[0023] [Figure 16] 16 is another cross-sectional view of a portion of the golf club head of FIG. 10 taken along line 16-16 of FIG. 13.

[0024] [Figure 17] 17 is another cross-sectional view of a portion of the golf club head of FIG. 10 taken along line 17-17 of FIG. 14.

[0025] [Figure 18] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0026] [Figure 19] FIG. 19 is an exploded perspective view of the golf club head of FIG. 18.

[0027] [Figure 20] 19 is a perspective view of a portion of the golf club head of FIG. 18 showing the adjustment member in a first position.

[0028] [Figure 21] 19 is another perspective view of the portion of the golf club head of FIG. 18, showing the adjustment member in a second position.

[0029] [Figure 22] 22 is a cross-sectional view of a portion of the golf club head of FIG. 18 taken along line 22-22 of FIG. 20.

[0030] [Figure 23] 23 is another cross-sectional view of the portion of the golf club head of FIG. 18 taken along line 23-23 of FIG. 21.

[0031] [Figure 24] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0032] [Diagram 25] FIG. 25 is an exploded perspective view of the golf club head of FIG. 24.

[0033] [Figure 26] 25 is a perspective view of a portion of the golf club head of FIG. 24 showing the adjustment member in a first position.

[0034] [Figure 27] 25 is another perspective view of the portion of the golf club head of FIG. 24, showing the adjustment member in a second position.

[0035] [Figure 28] 28 is a cross-sectional view of a portion of the golf club head of FIG. 24 taken along line 28-28 of FIG. 26.

[0036] [Figure 29] 29 is another cross-sectional view of a portion of the golf club head of FIG. 24 taken along line 29-29 of FIG. 27.

[0037] [Diagram 30] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0038] [Diagram 31] FIG. 31 is an exploded perspective view of a portion of the golf club head of FIG. 30.

[0039] [Diagram 32] 31 is another exploded perspective view of the portion of the golf club head of FIG. 30.

[0040] [Diagram 33]33 is a cross-sectional view of a portion of the golf club head of FIG. 30 taken along line 33-33 of FIG. 32, illustrating a cavity having an L-shaped slot.

[0041] [Diagram 34] 34 is another cross-sectional view of a portion of the golf club head of FIG. 30 taken along line 34-34 of FIG. 30.

[0042] [Diagram 35] 31 is a perspective view of a portion of the golf club head of FIG. 30 showing the adjustment member in a first position.

[0043] [Diagram 36] 31 is another perspective view of the portion of the golf club head of FIG. 30 showing the adjustment member in a second position.

[0044] [Figure 37] 31 is another perspective view of the portion of the golf club head of FIG. 30, showing the adjustment member in a third position.

[0045] [Figure 38] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0046] [Figure 39] FIG. 39 is an exploded perspective view of a portion of the golf club head of FIG. 38.

[0047] [Diagram 40] 39 is a perspective view of a portion of the golf club head of FIG. 38 showing the adjustment member in a first position.

[0048] [Diagram 41] 39 is another perspective view of the portion of the golf club head of FIG. 38 showing the adjustment member in a second position.

[0049] [Diagram 42]42 is a cross-sectional view of a portion of the golf club head of FIG. 38 taken along line 42-42 of FIG. 40.

[0050] [Diagram 43] 43 is another cross-sectional view of a portion of the golf club head of FIG. 38 taken along line 43-43 of FIG. 41.

[0051] [Diagram 44] 13 is a perspective view of a golf club head including a rest surface angle adjuster according to another embodiment of the present disclosure;

[0052] [Diagram 45] FIG. 45 is an exploded perspective view of the golf club head of FIG. 44.

[0053] [Figure 46] 45 is a perspective view of a portion of the golf club head of FIG. 44 showing the adjustment member in a first position.

[0054] [Figure 47] 45 is another perspective view of the portion of the golf club head of FIG. 44, showing the adjustment member in a second position.

[0055] [Figure 48] 48 is a cross-sectional view of a portion of the golf club head of FIG. 44 taken along line 48-48 of FIG. 46.

[0056] [Figure 49] 49 is another cross-sectional view of a portion of the golf club head of FIG. 44 taken along line 49-49 of FIG. 47. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0057] Described herein is a golf club head having a multi-component rest plane angle adjuster that allows a user to adjust the rest plane angle of the golf club head. The club head generally includes a club head body having a crown opposite the sole, a toe opposite the heel, a back opposite the face, a hosel, and a recess formed in the club body. The adjuster includes an adjustment member configured to be fully or partially received by the recess and selectively secured to the club head body. In many embodiments, the adjustment member described herein protrudes from the exterior contour of the club head or is minimally recessed or recessed from the exterior contour of the club head. The adjustment member is configured to slide or pivot relative to the recess toward or away from the exterior contour of the sole of the club head. The adjustment member may further be configured to slide or pivot relative to the recess toward or away from the face and / or toward or away from the toe. In some embodiments, the recess for the adjuster is a hosel recess formed in the club head to provide access to a club shaft fastener, and the adjustment member includes an adjustable bracket attached to a surface of the hosel recess.

[0058] The term "rest face angle" (RFA) of a golf club as described herein refers to the angle formed between the club face and the golf ball at address (i.e., before swing), and more specifically, between the club face and an imaginary line extending from the golf ball along the player's intended target line at address. It should be understood that the RFA is in a neutral position when the club face is square (or nearly perpendicular) to the target line. When the club head rotates about the shaft and the toe end moves away from the ball relative to the target line, the RFA is in an open position. When the club head rotates about the shaft and the toe end moves towards the ball relative to the target line, the RFA is in a closed position. The RFA of a golf club head may bias or promote a player's tendency to hook or slice the golf ball. A closed position influences a right-handed player to hook the golf ball trajectory to the left. An open position influences a right-handed player to slice the golf ball trajectory to the right.

[0059] The RFA of a golf club is determined by the relationship of the location on the sole where the club naturally rests relative to the ground when addressed, commonly referred to as the keel point, to the club's center of gravity (CG). In some embodiments, there is only one keel point. In such embodiments, the keel point is aligned with the CG of the golf club head such that an imaginary axis perpendicular to the ground passes through both the keel point and the CG of the club. In other embodiments, there are two keel points. In such embodiments, a first keel point is located on a first side of the sole relative to the CG and a second keel point is located opposite the first side and on a second side of the sole relative to the CG.

[0060] The height of a keel point is the distance that the keel point projects outward relative to the natural curvature of the sole or sole feature, for example, measured perpendicular to the adjacent surface of the sole. The greater the height of the keel point, the more the point projects from the remainder of the sole. In an embodiment having a first keel point that is forward of the CG (i.e., closer to the face) and a second keel point that is rearward of the CG (i.e., closer to the rear end), changing the height or location of the first or second keel point relative to the sole affects the RFA of the club head. For example, increasing the height of the first keel point while maintaining the height of the second keel point will tend to open the RFA, resulting in a more open position of the golf club head at address. Similarly, decreasing the height of the second keel point while maintaining the height of the first keel point will tend to open the RFA, resulting in a more open position of the golf club head at address. Conversely, decreasing the height of the first keel point while maintaining the height of the second keel point will tend to close the RFA, resulting in a more closed position of the golf club head at address. Similarly, increasing the height of the second keel point while maintaining the same height of the first keel point will tend to close the RFA, resulting in the golf club head being in a more closed position when addressed.

[0061] Other features and aspects will become apparent upon review of the following detailed description and the accompanying drawings. Before describing any embodiment of the present disclosure in detail, it should be understood that the present disclosure is not limited in its application to the details of the configuration and arrangement of components set forth in the following description or illustrated in the accompanying drawings. The present disclosure can support other embodiments and can be implemented or carried out in various ways. It should be understood that the description of a specific embodiment is not intended to limit the present disclosure to include all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure. Moreover, it should be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting.

[0062] For ease of discussion and understanding, and for purposes of illustration only, the following detailed description will describe the golf club head 10 as a wood, and more specifically, a driver (FIGS. 1-49). It should be understood that a driver is provided to illustrate one or more embodiments of the rest surface angle adjusters 100 (FIGS. 1-9), 200 (FIGS. 10-17), 300 (FIGS. 18-23), 400 (FIGS. 24-29), 500 (FIGS. 30-37), 600 (FIGS. 38-43), 700 (FIGS. 44-49) as disclosed herein. The disclosed adjusters 100, 200, 300, 400, 500, 600, 700 may be used with any desired golf club head 10, including woods, hybrids, irons, putters, or other golf clubs, in which one or more adjustment members are adjustably disposed on the golf club head 10. For example, the club head 10 may include, but is not limited to, a driver, a fairway wood, a hybrid, a 1 iron, a 2 iron, a 3 iron, a 4 iron, a 5 iron, a 6 iron, a 7 iron, a 8 iron, a 9 iron, a pitching wedge, a gap wedge, a utility wedge, a sand wedge, a lob wedge, and / or a putter.In addition, the golf club head 10 may be configured to have a range of angles from about 3 degrees to about 65 degrees (3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14, 14.5, 15, 15.5, 16, 16.5, 17, 17.5, 18, 18. 5, 19, 19.5, 20, 20.5, 21, 21.5, 22, 22.5, 23, 23.5, 24, 24.5, 25, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29, 29.5, 30, 30.5, 31, 31.5, 32, 32.5, 33, 33.5, 34, 34.5, 35, 35.5, 36 , 36.5, 37, 37.5, 38, 38.5, 39, 39.5, 40, 40.5, 41, 41.5, 42, 42.5, 43, 43.5, 44, 44.5, 45, 45.5, 46, 46.5, 47, 47.5, 48, 48.5, 49, 49.5, 50, 50.5, 51, 51.5, 52, 52.5, 53, 53. In one embodiment, the golf club may have a loft that may be in the range of, but not limited to, 5, 54, 54.5, 55, 55.5, 56, 56.5, 57, 57.5, 58, 58.5, 59, 59.5, 60, 60.5, 61.61.5, 62, 62.5, 63, 63.5, 64, 64.5, and / or 65 degrees.

[0063] The golf club head 10 includes a club body 14 (or body 14) having a toe end 18 (or toe 18) opposite a heel end 22 (or heel 22). The body 14 also includes a crown 26 (or top 26) opposite a sole 30 (or bottom 30). The body 14 carries a face plate 34 (or striking plate 34 or club face 34) that defines a striking surface 38. The face plate 34 is located opposite a rear end 42 (or rear end 42, rear portion or rear portion) (see FIGS. 1 and 3A). A plurality of grooves 46 (see FIG. 1) may be located in the face plate 34. The golf club head 10 also includes a hosel 50 having a hosel axis 54 (see FIG. 1) extending through a center of the hosel 50. The hosel 50 is configured to receive a golf club shaft (not shown) that carries a grip (not shown).

[0064] The striking face 34 of the club head 10 defines a geometric center 140. In some embodiments, the geometric center 140 may be located at a geometric center point of the striking face perimeter and at the midpoint of the face height. In the same or other examples, the geometric center 140 may be centered with respect to a designed impact zone, which may be defined by an area of ​​grooves on the striking face. As an alternative approach, the geometric center of the striking face may be located according to a definition of a golf governing body, such as the United States Golf Association (USGA). For example, the geometric center 140 of the striking face 34 may be determined according to Section 6.1 of the USGA's Procedure for Measuring the Flexibility of a Golf Club Head (USGA-TPX3004, Rev. 1.0.0, May 1, 2008) (http: / / www.usga.org / equipment / testing / protocols / Procedure-For-Measuring-The-Flexibility-Of-A-Golf-Club-Head / ) ("Flexibility Procedure").

[0065] 2, 3A and 3B, the golf club head 10 includes a center of gravity or CG 58 that defines the origin of a coordinate system that includes an x-axis 62, a y-axis 66, and a z-axis 70. The y-axis 66 (shown in FIG. 2) extends through the center of gravity 58 of the club head 10 from the crown or top 26 to the sole or bottom 30, is parallel to the hosel axis 54 when viewed from a side view, and is disposed at an angle of 30 degrees from the hosel axis 54 when viewed from a front view (FIG. 2). The x-axis 62 (see FIG. 3A) extends through the center of gravity (CG) 58 of the club head from the toe or toe end 18 to the heel or heel end 22, and is perpendicular to the y-axis 66 when viewed from the front. The z-axis 70 (see FIG. 3A) extends through the CG 58 of the club head 10 from the club face 34 to the back end 42, and is perpendicular to the x-axis 62 and y-axis 66. The x-axis 62 extends through the head CG 58 from the toe or toe end 18 to the heel or heel end 22. The y-axis 66 extends through the head CG 58 from the crown or top 26 to the sole or bottom 30. The z-axis 70 extends through the head CG 58 from the club face 34 to the back end 42.

[0066] For further guidance in describing the innovations herein, x-axis 62 and z-axis 70 are positioned to correspond with the numbers on the analog clock of Figure 3A. Z-axis 70 extends between 12 o'clock ("12" through club face 34) and 6 o'clock ("6" through back 42), and x-axis 62 extends between 3 o'clock ("3" through toe end 18) and 9 o'clock ("9" through heel end 22).

[0067] 4-9 show an embodiment of a rest surface angle adjuster 100. The adjuster 100 includes a recess 104 disposed or formed in or on the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 104 extends from the heel end 22 near the face 34 to the toe end 18 near the back end 42. The recess 104 is a substantially straight recess 104 that extends along a portion of the sole 30. The recess 104 is disposed on the sole 30 closer to the heel end 22 than the toe end 18, closer to the back end 42 than the face 34, and behind the CG. However, in other embodiments, the recess 104 can be disposed in any suitable location on the sole 30, including in front of the CG near the front face of the golf club head, and can be any suitable shape (e.g., arcuate, etc.).

[0068] In the illustrated embodiment, the recess 104 includes a bottom wall 108, opposing side walls 112, a rear wall 116 defining a second end 120, and a front wall 124 defining a first end 128 opposite the second end 120. The bottom wall 108 defines a slide surface 132. The sole 30 has a sole surface 74. The sole surface 74 has an abutment surface portion 78 that immediately surrounds the recess 104 where the sole surface 74 abuts the side walls 112, the rear wall 116, and the front wall 124. In other words, a portion of the sole surface 74 at least partially bounds the recess 104, and in some embodiments, the abutment surface portion 78 is a recess edge 78.

[0069] The recess 104 includes a variable recess depth D, measured perpendicular to the sliding surface 132 between the sliding surface 132 and the adjacent surface portion 78. In the illustrated embodiment, the recess depth D is greater near the closed or first end 128 and less near the open or second end 120. The sliding surface 132 is generally flat and is sloped or angled relative to the adjacent surface portion 78 such that the recess depth D varies linearly between the second end 120 and the first end 128. In other embodiments (not shown), the recess depth D may be greater near the second end 120 and less near the first end 128. In the same or other embodiments (not shown), the sliding surface 132 may be formed with an arc, a step, another profile, or the like, such that the recess depth D varies non-linearly or remains constant between the first and second ends 128, 120.

[0070] The adjuster 100 also includes an adjustment member 136 that is at least partially received within the recess 104. The adjustment member 136 includes a bottom surface 140, a keel surface 144 (or protruding surface 144 or contact surface 144) opposite the bottom surface 140, and a through slot 148 extending between the bottom surface 140 and the keel surface 144. The through slot 148 can receive a threaded fastener 152 that selectively engages with a threaded hole 156 in the bottom wall 108 to temporarily secure the adjustment member 136 to the golf club head 10 within the recess 104. In other embodiments (not shown), the adjustment member 136 can be secured to the golf club head 10 by other mechanical means (e.g., a magnet, etc.). When inserted into the recess 104, the bottom surface 140 of the adjustment member 136 abuts the slide surface 132. The keel surface 144 projects to a keel height H above the abutment surface portion 78 , measured perpendicular to the abutment surface portion 78 between the abutment surface portion 78 and the keel surface 144 .

[0071] As shown in FIGS. 6-9, the adjustment member 136 is repositionable within the recess 104 in a number of adjustment positions between a first retracted adjustment position near the first end 128 (FIGS. 6 and 8) and a second extended adjustment position near the second end 120 (FIGS. 7 and 9). For example, FIGS. 6 and 8 show the adjustment member 136 in a first adjustment position, with the adjustment member 136 located near the first end 128. In FIGS. 7 and 9, the adjustment member 136 is shown in a second adjustment position, with the adjustment member 136 located near the second end 120. In the illustrated embodiment, the adjustment of the adjustment member is continuous between the first and second positions, and the adjustment member 136 can be positioned in any number of intermediate adjustment positions (not shown) between the first and second adjustment positions. In other embodiments (not shown), the adjustment member 136 may be fixed in only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.). In such an embodiment, the adjustment member 136 may include an insert feature that cooperates with the fastener 152 to define each adjustment position (e.g., a discrete number of holes, such as two holes, three holes, etc., in the adjustment member 136 for receiving the fastener 152). Alternatively, in such an embodiment, the adjustment member 136 may include a ridge (not shown) or other structure that cooperates with a corresponding notch (not shown) in the sidewall 112 to limit the adjustment member 136 to two adjustment positions, three adjustment positions, etc. (or a ridge or the like may be formed in the sidewall 112 and a corresponding notch may be formed in the adjustment member 136). Additionally, the slot 148 may include narrowed and widened portions (not shown) that limit the fastener 152 to a discrete number of positions.

[0072] In the first adjustment position, the keel surface 144 projects to a first keel height H1 (FIG. 8) on the abutment surface portion 78, measured perpendicular to the abutment surface portion 78 between the abutment surface portion 78 and the sliding surface 132. In the second adjustment position, the keel surface 144 projects to a second keel height H2 (FIG. 9) on the abutment surface portion 78, measured perpendicular to the abutment surface portion 78 between the abutment surface portion 78 and the sliding surface 132. The second keel height H2 is greater than the first keel height H1. In other words, when the adjustment member 136 is in the second adjustment position, the keel surface 144 projects farther beyond the abutment surface portion 78 (or edge 78) than when the adjustment member 136 is in the first adjustment position. When the adjustment member is positioned at an intermediate adjustment position (not shown) between the first and second adjustment positions, the keel surface 144 protrudes to an intermediate keel height (not shown) that is greater than the first keel height H1 and less than the second keel height H2.

[0073] In operation of the rest surface angle adjuster 100, the position of the adjustment member 136 within the recess 104 can be adjusted by loosening the fasteners 152 and sliding the adjustment member 136 toward the second end 120 or the first end 128. For example, the adjustment member 136 can be repositioned from the first adjustment position (FIG. 6) to the second adjustment position (FIG. 7) by loosening the fasteners 152, sliding the adjustment member 136 from the first end 128 within the recess 104, and then re-tightening the fasteners 152 to secure the adjustment member 136 in the second adjustment position. Similarly, the adjustment member 136 can be repositioned from the second adjustment position (FIG. 7) to the first adjustment position (FIG. 6) by loosening the fasteners 152 and sliding the adjustment member 136 from the second end 120 to the first end 128.

[0074] By repositioning the adjustment member 136 between the first end 128 and the second end 120, the keel height H can be adjusted to manipulate the rest surface angle at the address position. For example, with the adjustment member 136 in the first adjustment position (FIG. 6) such that the keel surface 144 extends minimally from the recess 104 (i.e., such that the keel surface 144 extends to an adjustment height H1 relative to the adjacent surface portion 78), the keel surface 144 can contact the ground and generate its own keel point when the golf club head 10 is in the address position. In such a case, the keel point generated by the keel surface 144 in the first adjustment position is located behind the CG 58 (i.e., between the trailing end 42 and the CG 58 in a direction parallel to the z-axis 70). By placing the adjustment member 136 in the first adjustment position, the rest plane angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position, to a more closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., promoting a draw or hook).

[0075] Alternatively, when adjustment member 136 is in the first adjustment position such that keel surface 144 is at height H1, keel surface 144 may not contact the ground when club head 10 is in the address position, or keel surface 144 may be completely within recess 104 and not contact the ground when club head 10 is in the address position. By placing adjustment member 136 in the first adjustment position, the rest surface angle at address may be redirected to a more open or neutral position (or neutral or square configuration) with neither toe end 18 nor heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0076] As another example, the adjustment member 136 can be redirected to a second adjustment position (FIG. 7) such that the keel surface 144 extends fully out of the recess 104 (i.e., the keel surface 144 extends to an adjustment height H2 relative to the adjacent surface portion 78) such that the keel surface 144 contacts the ground, thus generating a unique keel point at a different location on the sole surface 74 (away from the front end) than the keel point generated at height H1, or alternatively, the first adjustment member keel point when the golf club head 10 is in the address position. In the second position, the keel point generated by the keel surface 144 is located behind CG 58 (i.e., between the rear end 42 and CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 136 to the second adjustment position, the rest plane angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position, to a more closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., promoting a draw or hook).

[0077] Similarly, the adjustment member 136 can be further repositioned to any intermediate position (not shown) between the first and second adjustment positions, thereby adjusting the extent to which the rest surface angle when addressed is reoriented to a more closed or open position. In other embodiments (not shown), as discussed above, the adjustment member 136 may be fixed to only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.).

[0078] Without the adjuster 100, the golf club head 10 has a natural keel point 102 on the contour of the sole surface 74 in the address position. When the adjustment member 136 is placed in the first adjustment position and the club head 10 is in the address position, the natural keel point 102 (FIG. 6) remains in the first position if the keel surface 144 does not extend out of the recess (i.e., the keel height H is less than or equal to zero). Alternatively, in the first adjustment position, the keel surface 144 may extend out of the recess (i.e., the keel height H is greater than zero) but does not contact the ground and therefore does not create a keel point on the keel surface 144, thereby maintaining the natural keel point 102 in the first position. When the adjustment member 136 is moved to the second adjustment position (FIG. 7), this moves the natural keel point 102 to a second position different from the first position on the sole surface 74 as shown in FIGS. 6 and 7.

[0079] In the illustrated embodiment, when the adjustment member 136 is placed in the first adjustment position (FIG. 6), the first location of the keel point 102 is between the CG 58 and the face 34 (i.e., the first location is closer to the face relative to the CG 58 in a direction parallel to the z-axis 70). Thus, the rest plane angle at address can be oriented in a more open or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 closer to the golf ball (e.g., promoting a straighter ball flight). When the adjustment member 136 is placed in the second adjustment position (FIG. 7), the second location of the keel point 102 is between the first location and the face 34 (i.e., the second location is closer to the face relative to the first location and the CG 58 in a direction parallel to the z-axis 70). Thus, the rest face angle at address can be redirected to a closer closed position, either from an open position to a neutral position or from a neutral position to a closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address. In other words, extension of the adjustment member 136 from the first adjustment position to the second adjustment position results in a closer face angle at address (i.e., from an open position to a neutral position or from a neutral position to a closed position, etc.). As a result, the change in the rest face angle comparing the first adjustment position to the second adjustment position can be up to 10 degrees. For example, the change in the rest face angle comparing the first adjustment position to the second adjustment position can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0080] The adjustment member 136 can also be removed from the recess 104 by undoing the fasteners 152. The adjustment member 136 can then be rotated, removed and replaced, or otherwise reoriented and then reinserted, or a different adjustment member can be inserted into the recess 104 (not shown). The adjustment member 136 can be reattached to the recess 104 by reinserting the fasteners 152 into the through slots 148 and re-tightening the fasteners 152 within the threaded holes 156. In some embodiments, the fasteners 152 are not removable such that the adjustment member 136 cannot be removed from the recess.

[0081] 10-17, an embodiment of a rest surface angle adjuster 200 is shown. The adjuster 200 has a similar configuration to the adjuster 100, with similar names and / or numbers identifying similar configurations. The adjuster 200 includes a recess disposed in the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 204 extends longitudinally from the front wall 224 to the rear wall 216. The recess 204 extends in a generally straight line along a portion of the sole 30. The recess 204 is disposed in the sole 30 closer to the heel end 22 than to the toe end 18. However, in other embodiments, the recess 204 may be disposed in any suitable location on the sole 30 and may be any suitable shape (e.g., arcuate, etc.).

[0082] In the illustrated embodiment, the recess 204 includes a bottom wall 208, opposing sidewalls 212, a front wall 224 disposed closer to the face 34, and a rear wall 216 opposite the front wall 224 and disposed closer to the rear end 42. The sole 30 has a sole surface 74. The sole surface 74 has an adjacent surface portion 78 that immediately surrounds the recess 204 where the sole surface 74 meets the sidewalls 212, the rear wall 216, and the front wall 224. In other words, a portion of the sole 74 at least partially bounds the recess 204, and in some embodiments, the adjacent surface portion 78 is a recess edge 78.

[0083] The adjuster 200 also includes an adjustment member 236 that is at least partially received within the recess 204. The adjustment member 236 includes a body 260 extending between a first end 264 and a second end 268 (the first end 264 is anterior to the center of gravity and the second end 268 is posterior to the center of gravity), a bottom surface 240, a keel surface 244 (or a protruding surface 244 or a contact surface 244) opposite the bottom surface 240, and a slot 248 that transversely intersects the body 260 between the bottom surface 240 and the keel surface 244. The slot 248 defines a pivot axis 272 and is capable of receiving a threaded fastener 252 that selectively engages with a threaded hole 256 in the sidewall 212 to provisionally secure the adjustment member 236 to the golf club head 10 within the recess 212. In other embodiments (not shown), the adjustment member 236 may be secured to the golf club head 10 by other mechanical means (e.g., a magnet, etc.). When inserted into the recess 204, the first end 264 is adjacent the front wall 224 and the second end is adjacent the rear wall 216. A portion of the keel surface 244 may protrude above the abutment surface portion 78 to a keel height H, measured perpendicular to the abutment surface portion 78 between the abutment surface portion 78 and the keel surface 244.

[0084] As shown in Figures 12-17, the adjustment member 236 is reorientable within the recess 204 in a number of adjustment positions between a first adjustment position in which the first end 264 fully extends from the recess 204 (Figures 14 and 17) and a second adjustment position in which the second end 268 fully extends from the recess 204 (Figures 13 and 16). The adjustment member may also be disposed in a third, neutral adjustment position in which neither the first end 264 nor the second end 268 extends from the recess 204 (Figures 12 and 15) or in which the first end 264 and / or the second end 268 extend minimally from the recess 204. In the third adjustment position, the keel surface 244 is generally flush with the adjacent surface portion 78.

[0085] In operation of the rest surface angle adjuster 200, the orientation of the adjustment member 236 within the recess 204 can be adjusted by loosening the fastener 252 and rotating the adjustment member 236 about the pivot axis 272 so that the first end 264 or the second end 268 protrudes outwardly from the recess 204 and above the adjacent surface portion 78 (or edge 78). For example, the adjustment member 236 can be pivoted from the first adjustment position (FIG. 14) to the second adjustment position (FIG. 13) by loosening the fastener 252, pivoting the first end 264 toward the bottom wall 208, and then re-tightening the fastener 252 to secure the adjustment member 236 in the second adjustment position. Similarly, the adjustment member 236 can be pivoted from the second adjustment position (FIG. 13) to the first adjustment position (FIG. 14) by loosening the fastener 252 and pivoting the second end 268 toward the bottom wall 208. Additionally, the adjustment member 236 can be pivoted to a third, neutral adjustment position (FIG. 12) by loosening the fasteners 252 and pivoting the adjustment member 236 about the pivot axis 272 until each of the first and second ends 264, 268 are oriented approximately the same distance from the bottom wall 208.

[0086] By pivoting the adjustment member 236 between the first, second, and third adjustment positions, the keel height H is adjusted at each end 264, 268 of the adjustment member 236 to manipulate the rest plane angle at address. For example, with the adjustment member 236 in the first adjustment position with the first end 264 extending from the recess 204 (FIG. 14), the keel surface 244 contacts the ground at the first end 264 and creates its own keel point when the golf club head 10 is in the address position. In the first position, the keel point created by the keel surface 244 is located forward of the CG 58 (i.e., between the face 34 and the CG 58 in a direction parallel to the z-axis 70). By placing the adjustment member 236 in the first adjustment position, the rest plane angle at address can be oriented toward a more open position with the heel end 22 being closer to the golf ball than the toe end 18 at address (e.g., promoting a fade or slice).

[0087] As another example, the adjustment member 236 can be redirected to a second adjustment position (FIG. 13) such that the second end 268 extends out of the recess 204 and the keel surface 244 contacts the ground at the second end 268, thus creating a different adjustment member keel point when the golf club head 10 is in the address position. In the second position, the keel point created by the keel surface 244 is located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 236 to the second adjustment position, the rest surface angle at address can be redirected to a more closed position with the toe end 18 closer to the golf ball than the heel end 22 at address (e.g., promoting a draw or hook). Adjustment between the first and second adjustment positions also moves the keel point on the sole surface 74 from the first position to the second position, as described above with respect to FIGS. 4-9. As a result, the change in rest surface angle comparing the first adjustment position to the second adjustment position can be up to 20 degrees. For example, the change in rest surface angle comparing the first adjustment position to the second adjustment position can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, or 20 degrees.

[0088] As another example, the adjustment member 236 can be reoriented to a third adjustment position ( FIG. 12 ) such that neither the first end 264 nor the second end 268 extends outside the recess 204 (or the first and second ends 264, 268 can be completely within the recess 204). In the third adjustment position, the keel surface 244 does not contact the ground and therefore does not create a keel point at either end 264, 268 when the golf club head 10 is in the address position. By repositioning the adjustment member 236 to the third adjustment position, the rest surface angle at address can be reoriented to a more neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0089] In the illustrated embodiment, the adjustment member 236 may be further repositioned to any intermediate position (not shown) between the first and third adjustment positions to adjust the extent to which the rest surface angle is reoriented to a more open position when addressed. Similarly, the adjustment member 236 may be further repositioned to any intermediate position (not shown) between the second and third adjustment positions to adjust the extent to which the rest surface angle is reoriented to a more closed-open position when addressed. In a further embodiment (not shown), the adjustment member 236 may be fixed to only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.) using surface features in the recesses 204 or on the adjustment member as described above with respect to the adjuster 100.

[0090] 18-23, an embodiment of a rest surface angle adjuster 300 is shown. The adjuster 300 has a similar configuration to adjusters 100 and 200, with similar names and / or numbers identifying similar configurations. The adjuster 300 includes a recess 304 disposed in the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 304 extends longitudinally from the front wall 324 near the face 34 to the rear wall 316 near the rear end 42. The recess 304 extends in a generally straight line along a portion of the sole 30. The recess 304 is disposed in the sole 30 closer to the heel end 22 than the toe end 18, closer to the rear end 42 than the face 34, and behind the CG. However, in other embodiments, the recess 304 may be disposed in any suitable location on the sole 30, including in front of the CG near the front face of the golf club head, and may be any suitable shape (e.g., arcuate, etc.).

[0091] In the illustrated embodiment, the recess 304 includes a bottom wall 308, opposing sidewalls 312, a front wall 324 disposed closer to the face 34, and a rear wall 316 opposite the front wall 324 and disposed closer to the rear end 42. The sole 30 has a sole surface 74. The sole surface 74 has an adjacent surface portion 78 that immediately surrounds the recess 304 where the sole surface 74 meets the sidewalls 312, the rear wall 316, and the front wall 324. A portion of the sole surface 74 at least partially bounds the recess 304, and in some embodiments, the adjacent surface portion 78 is a recess edge 78.

[0092] The adjuster 300 also includes an adjustment member 336 that is at least partially received within the recess 304. The adjustment member 336 includes a body 360 extending between a first end 364 and a second end 368, a tapered bottom surface 340, and a keel surface 344 (or protruding surface 344 or contact surface 344) opposite the bottom surface 340. In the illustrated construction, a pair of cylindrical projections 376 (FIG. 19) project outwardly from each of the sides of the adjustment member 336 proximate the bottom surface 340 and the front wall 324. The recess 304 includes a pair of openings 380 in each side wall 312 that receive the projections 376 to secure the adjustment member 336 within the recess 304. In other embodiments (not shown), the adjustment member 336 can be secured to the golf club head 10 by other mechanical means (e.g., magnets, etc.). The projections 376 also define a pivot axis 372. When inserted into the recess 304, the first end 364 is adjacent to and rotatably coupled to the front wall 324 and the second end is adjacent to the rear wall 316. A spring 384 is disposed between the front wall 324 of the recess 304 and the first end 364 of the adjustment member 336 and biases the bottom surface 340 toward the bottom wall 308 (i.e., the spring 384 biases the adjustment member toward the first retracted position) (FIG. 20). In other embodiments, the spring may be a compressible material such as foam or any other suitable compressible material. In still other embodiments, the spring 384 may be coupled to the bottom wall 308 and the bottom surface 340 by any suitable coupling method.

[0093] Club head 10 also includes a threaded hole 356 that intersects rear wall 316 and extends through body 360 from rear end 42 to rear wall 316. Adjustment screw 352 selectively engages threaded hole 356. Adjustment screw 352 is rotatably adjustable within threaded hole 356 such that tip portion 388 selectively protrudes through rear wall 316 and into recess 304.

[0094] As shown in FIGS. 20-23, the adjustment member 336 is reorientable within the recess 304 in a number of adjustment positions between a first retracted adjustment position (FIGS. 20 and 22) and a second extended adjustment position (FIGS. 21 and 23). For example, FIGS. 20 and 22 show the adjustment member 336 in a first adjustment position in which the keel surface 344 does not protrude above the adjacent surface 78 (i.e., a first keel height H). In FIGS. 21 and 23, the adjustment member 336 is shown in a second adjustment position in which the keel surface 344 protrudes outwardly above the adjacent surface 78 (i.e., a second keel height H that is greater than the first keel height H). The adjustment member 336 may also be positioned in any number of intermediate adjustment positions (not shown) between the first and second adjustment positions. In other embodiments (not shown), the adjustment member 336 may be fixed in only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.) using surface features within the recess 304 or on the adjustment member as described above with respect to adjuster 100.

[0095] In operation of the rest surface angle adjuster 300, the orientation of the adjustment member 336 within the recess 304 can be adjusted by rotating the adjustment screw 352. Specifically, when the adjustment screw 352 is threaded into the threaded hole 356, the tip 388 abuts the bottom surface 340, allowing the adjustment member 336 to rotate about the pivot axis 372 against the force of the spring 384 and maintain the adjustment member 336 in a discrete position. As the adjustment member 336 pivots, the second end 368 rotates away from the recess 304 and rests on the adjacent surface portion 78 (or edge 78).

[0096] By pivoting the adjustment member 336 between the first and second adjustment positions, the keel height H can be adjusted to manipulate the rest surface angle at address. For example, with the adjustment member 336 in the first adjustment position where the keel surface 344 does not extend (or extends minimally) from the recess 304 or is fully within the recess 304 (FIG. 20), the keel surface 344 may not contact the ground and generate its own keel point when the golf club head 10 is in the address position. By placing the adjustment member 336 in the first adjustment position, the rest surface angle at address can be oriented toward a more open or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0097] As another example, the adjustment member 336 can be redirected to a second adjustment position (FIG. 21) such that the keel surface 344 extends from the recess 304 at a sufficient keel height H such that when the golf club head 10 is in the address position, the keel surface 344 contacts the ground, thus generating its own keel point. In the second position, the keel point generated by the keel surface 344 is located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 336 to the second adjustment position, the rest surface angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position to a more closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., to facilitate a draw or hook). Adjustment between the first and second adjustment positions also moves the keel point on the sole surface 74 from a first position to a second position, as described above with respect to Figures 4-9. As a result, the change in the rest surface angle comparing the first and second adjustment positions can be up to 10 degrees. For example, the change in the rest surface angle comparing the first and second adjustment positions can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0098] Similarly, the adjustment member 336 may be further repositioned to any intermediate position (not shown) between the first and second adjustment positions, thereby adjusting the extent to which the rest surface angle when addressed is reoriented to a more closed or open position. In other embodiments (not shown), the adjustment member 336 may be fixed to only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.), as described above with respect to adjuster 100.

[0099] 24-29, an embodiment of a rest surface angle adjuster 400 is shown. The adjuster 400 has a similar configuration to adjusters 100, 200, and 300, with similar names and / or numbers identifying the similar configuration. The adjuster 400 includes a recess 404 disposed in the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 404 is generally cylindrical and extends axially from an opening 488 in the sole face 74 to a bottom wall 408. The recess 404 is disposed in the sole 30 closer to the heel end 22 than the toe end 18 and closer to the back end 42 than the face 34. However, in other embodiments, the recess 404 may be disposed in any suitable location on the sole 30, including in front of the CG closer to the face 34.

[0100] In the illustrated embodiment, the recess 404 includes a bottom wall 408 and a cylindrical sidewall 412 extending between the bottom wall 408 and the opening 488. The sole 30 has a sole surface 74. The sole surface 74 has an abutment surface portion 78 that immediately surrounds the recess 404 where the sole surface 74 meets the cylindrical sidewall 412. A portion of the sole surface 74 at least partially bounds the recess 404, and in some embodiments, the abutment surface portion 78 is a recess edge 78.

[0101] The adjuster 400 also includes an adjustment member 436 that is at least partially received within the recess 404. The adjustment member 436 includes a generally cylindrical body 460 that extends between a bottom surface 440 and a keel surface 444 (or protruding surface 444 or contact surface 444) opposite the bottom surface 440. A through slot 448 extends across the body 460. The through slot 448 can receive a threaded fastener 452 that selectively engages with a threaded hole 456 in the cylindrical side wall 412 to temporarily secure the adjustment member 436 to the golf club head 10 within the recess 404. In other embodiments (not shown), the adjustment member 136 can be secured to the golf club head 10 by other mechanical means (e.g., a magnet, etc.). A spring 484 is disposed between the bottom wall 408 of the recess 404 and the bottom surface 440 of the adjustment member 436 to bias the bottom surface 440 away from the bottom wall 408. In other embodiments, the spring may be a compressible material such as foam, or any other suitable compressible material. In other embodiments, no spring is used.

[0102] As shown in FIGS. 26-29, the adjustment member 436 is repositionable within the recess 404 in a number of adjustment positions, i.e., generally in a crown-to-sole direction, between a first retracted adjustment position (FIGS. 26 and 28) and a second extended adjustment position (FIGS. 27 and 29). For example, FIGS. 26 and 28 show the adjustment member 436 in a first adjustment position in which the bottom surface 440 is located closer to the bottom wall 408. In FIGS. 27 and 29, the adjustment member 436 is shown in a second adjustment position in which the bottom surface 440 is located further from the bottom wall 408. The adjustment member 436 may also be positioned in any number of intermediate adjustment positions (not shown) between the first and second adjustment positions. In other embodiments (not shown), the adjustment member 436 may be fixed in only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.) using surface features within the recess 304 or on the adjustment member as described above with respect to the adjuster 100.

[0103] In the illustrated embodiment, when the adjustment member 436 is in the first adjustment position, the keel surface 444 protrudes beyond the adjacent surface portion 78 (or edge 78). In other embodiments (not shown), the keel surface 444 is below or relatively flush with the adjacent surface portion 78 in the first position. When the adjustment member 436 is in the second adjustment position, the keel surface 444 protrudes beyond the adjacent surface portion 78 (or edge 78) to a greater extent than when the adjustment member 436 is in the first adjustment position. When the adjustment member is disposed in an intermediate adjustment position (not shown) between the first and second adjustment positions, the keel surface 444 protrudes an intermediate amount, greater than in the first adjustment position and less than in the second adjustment position.

[0104] In operation of the rest surface angle adjustment device 400, the position of the adjustment member 436 within the recess 404 can be adjusted by loosening the fasteners 452 and sliding the adjustment member 436 into or out of the recess 404. The springs 484 bias the adjustment member 436 away from the bottom wall 408. To slide the adjustment member 436 toward the bottom wall 408, the adjustment member is pushed toward the bottom wall 408 until the spring force of the springs 484 is overcome. For example, the adjustment member 436 can be repositioned from a first adjustment position ( FIG. 26 ) to a second adjustment position ( FIG. 27 ) by loosening the fasteners 452, sliding the adjustment member 436 away from the bottom wall 408 within the recess 404 (i.e., based on the spring force of the springs 484), and then re-tightening the fasteners 452 to secure the adjustment member 436 in the second adjustment position. Similarly, the adjustment member 436 can be moved from the second adjustment position (FIG. 27) to the first adjustment position (FIG. 26) by loosening the fastener 452 and pushing the adjustment member 436 toward the bottom wall 408.

[0105] By repositioning the adjustment member 436 between the first and second adjustment positions, the keel height H can be adjusted to manipulate the rest surface angle at address. For example, with the adjustment member 436 in the first adjustment position (FIG. 26), where the keel surface 444 extends minimally from the recess 404, the keel surface 444 may contact the ground and create its own keel point when the golf club head 10 is at address. Alternatively, in the first adjustment position, the keel surface 444 may not contact the ground when the club head 10 is at address, or the keel surface 444 may be completely within the recess 404 and not contact the ground when the club head 10 is on the ground. By placing the adjustment member 436 in the first adjustment position, the rest plane angle at address can be oriented toward a more open or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball at address (e.g., promoting a straighter ball flight).

[0106] As another example, the adjustment member 436 can be redirected to a second adjustment position (FIG. 27) in which the keel surface 444 extends from the recess 104 a sufficient keel height H such that the keel surface 144 contacts the ground when the golf club head 10 is in the address position, thus generating its own keel point. In the second position, the keel point generated by the keel surface 444 is located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 436 to the second adjustment position, the rest surface angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position to a more closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., to facilitate a draw or hook). Adjustment between the first and second adjustment positions also moves the keel point on the sole surface 74 from a first position to a second position, as described above with respect to Figures 4-9. As a result, the change in the rest surface angle comparing the first and second adjustment positions can be up to 10 degrees. For example, the change in the rest surface angle comparing the first and second adjustment positions can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0107] Similarly, adjustment member 436 can be further repositioned to an intermediate position (not shown) between the first and second adjustment positions, thereby adjusting the extent to which the rest surface angle when addressed is reoriented to a more closed or open position. In other embodiments (not shown), adjustment member 436 may be fixed to only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.), as described above with respect to regulator 100.

[0108] 30-37, an embodiment of a rest surface angle adjuster 500 is shown. The adjuster 500 has a similar configuration to adjusters 100, 200, 300 and 400, with similar names and / or numbers identifying similar configurations. The adjuster 500 includes a recess 504 disposed in the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 504 is generally cylindrical and extends axially from an opening 588 in the sole face 74 to a bottom wall 508. The recess 504 is disposed in the sole 30 closer to the heel end 22 than the toe end 18 and closer to the back end 42 than the face 34. However, in other embodiments, the recess 504 may be disposed in front of the CG and in any suitable location on the sole 30.

[0109] In the illustrated embodiment, the recess 504 includes a bottom wall 508 and a cylindrical sidewall 512 extending between the bottom wall 508 and the opening 588. The sole 30 has a sole surface 74. The sole surface 74 has an abutment surface portion 78 that immediately surrounds the recess 504 where the sole surface 74 meets the cylindrical sidewall 512. A portion of the sole surface 74 at least partially bounds the recess 504, and in some embodiments, the abutment surface portion 78 is a recess edge 78.

[0110] 33, recess 504 includes J- or L-shaped grooves or channels 550 formed in cylindrical sidewall 512. Each channel 550 includes an axial portion 554 and a circumferential portion 558 corresponding to a respective adjustment position (and keel height H), as discussed in further detail below. In the illustrated embodiment, recess 504 includes three channels 550 including a first channel 562, a second channel 566, and a third channel 570. In other embodiments (not shown), recess 504 can include fewer or more than three channels 550 corresponding to fewer or more than three adjustment positions.

[0111] The adjuster 500 also includes an adjustment member 536 that is at least partially received within the recess 504. The adjustment member 536 includes a generally cylindrical body 560 having a circumferential sidewall 592 extending between a bottom surface 540 and a keel surface 544 (or protruding surface 544 or contact surface 544) opposite the bottom surface 540. A protrusion 576 extends radially outward from the circumferential sidewall 592. The protrusion 576 can selectively engage with a respective channel 550 in the cylindrical sidewall 512 to provisionally secure the adjustment member 536 to the golf club head 10 within the recess 504. A tool recess 596 is disposed in the keel surface 544 and selectively engages with a tool bit (not shown) to rotate the adjustment member 536 relative to the recess 504. A spring 584 is disposed between the bottom wall 508 of the recess 504 and the bottom surface 540 of the adjustment member 536 and biases the bottom surface 540 away from the bottom wall 508 from the crown to the sole. In other embodiments, the spring may be a compressible material such as foam, or any other suitable compressible material. In other embodiments, a spring is not used.

[0112] As shown in FIGS. 35-37, in the illustrated embodiment, the adjustment member 536 is repositionable within the recess 504 between a first retracted adjustment position (FIG. 35), a second partially extended adjustment position (FIG. 36), and a third fully extended adjustment position (FIG. 37). For example, FIG. 35 shows the adjustment member 536 in a first adjustment position in which the projection 576 is engaged with the first channel 562 and the bottom surface 540 is closest to the bottom wall 508. In FIG. 36, the adjustment member 536 is shown in a second adjustment position in which the projection 576 is engaged with the second channel 566 and the bottom surface 540 is located an intermediate distance from the bottom wall 508. In FIG. 37, the adjustment member 536 is shown in a third adjustment position in which the projection 576 is engaged with the third channel 570 and the bottom surface 540 is located furthest from the bottom wall 508.

[0113] In the illustrated embodiment, when adjustment member 536 is in the first adjustment position, keel surface 544 is relatively flush with adjacent surface 78 (or edge 78). When adjustment member 536 is in the second adjustment position, keel surface 544 protrudes a medium amount beyond adjacent surface 78. When adjustment member 536 is in the third adjustment position, keel surface 544 protrudes beyond adjacent surface 78 to a greater extent than when adjustment member 536 is in the first or second adjustment positions.

[0114] In operation of the rest surface angle adjuster 500, the position of the adjustment member 536 within the recess 504 can be adjusted by engaging any of the first, second, and third channels 550 of the recess 504. For example, to place the adjustment member 536 in the first adjustment position (FIG. 35), the adjustment member 536 is first pushed axially into the recess 504 so that the projection 576 engages and traverses the shaft portion 554 of the first channel 562, and the adjustment member 536 is then subsequently rotated so that the projection 576 engages and traverses the circumferential portion 558 of the first channel 562. Similarly, the adjustment member 536 can be repositioned from the first adjustment position (FIG. 40) to the second adjustment position (FIG. 36) or the third adjustment position (FIG. 37) by engaging the adjustment member 536 with the second or third channels 566, 570 in a manner similar to that described above with respect to the first channel 562.

[0115] By repositioning the adjustment member 536 among the first, second and third adjustment positions, the keel height H can be adjusted to manipulate the rest surface angle at address. For example, with the adjustment member 536 in the first adjustment position (FIG. 35) where the keel surface 544 is generally flush with the adjacent surface portion 78 or entirely within the recess 504, the keel surface 544 does not contact the ground and therefore does not generate its own keel point when the golf club head 10 is in the address position. By placing the adjustment member 536 in the first adjustment position, the rest surface angle at address can be oriented toward a more open or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0116] As another example, the adjustment member 536 can be reoriented to a second adjustment position (FIG. 36) in which the keel surface 544 extends approximately halfway from the recess 504 at a sufficient keel height H such that when the golf club head 10 is in the address position, the keel surface 544 contacts the ground, thus generating its own keel point. In the second position, the keel point generated by the keel surface 544 is located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 536 to the second adjustment position, the rest plane angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position, or more closed, relative to the first position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., to facilitate a draw or hook).

[0117] As another example, the adjustment member 536 can be redirected to a third adjustment position (FIG. 37) in which the keel surface 544 extends further from the recess 504 than when the adjustment member 536 is in the second adjustment position, such that the keel surface 544 again contacts the ground, thus generating its own keel point, when the golf club head 10 is in the address position. In the third position, the keel point generated by the keel surface 544 is similarly located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 536 to the third adjustment position, the rest surface angle at address can be redirected to a more closed position relative to the first and second adjustment positions, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., promoting a draw or hook). In other club heads 10, the above-described adjustment of adjustment member 536 can position the rest surface angle from an open position (first adjustment position) to a more neutral position (second adjustment position) to a closed position (third adjustment position). Adjustments between the first, second, and third adjustment positions also move the keel point on sole surface 74 from a first position to a second position to a third position, similar to that described above with respect to FIGS. 4-9. As a result, the change in the rest surface angle comparing the first adjustment position to the third adjustment position can be up to 10 degrees. For example, the change in the rest surface angle comparing the first, second, and third adjustment positions can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0118] 38-43, an embodiment of a rest surface angle adjuster 600 is shown. The adjuster 600 has a similar configuration to adjusters 100, 200, 300, 400 and 500, with similar names and / or numbers identifying similar configurations. The adjuster 600 includes a recess 604 disposed in the sole 30 of the golf club head 10. In the illustrated embodiment, the recess 604 is generally cylindrical and extends axially from an opening 688 in the sole surface 74 to a bottom wall 608. The recess 604 is disposed in the sole 30 closer to the heel end 22 than the toe end 18 and closer to the back end 42 than the face 34. However, in other embodiments, the recess 604 may be disposed in any suitable location on the sole 30, including in front of the CG.

[0119] In the illustrated embodiment, the recess 604 includes a bottom wall 608 and a cylindrical sidewall 612 extending between the bottom wall 608 and the opening 688. The cylindrical sidewall 612 is a threaded cylindrical sidewall 612 carrying internal threads 674. The sole 30 has a sole surface 74. The sole surface 74 has an abutment surface portion 78 that immediately surrounds the recess 604 where the sole surface 74 abuts the cylindrical sidewall 612. A portion of the sole surface 74 at least partially bounds the recess 504, and in some embodiments the abutment surface portion 78 is a recess edge 78.

[0120] The adjuster 600 also includes an adjustment member 636 that is at least partially received within the recess 604. The adjustment member 636 includes a generally cylindrical body 660 having a circumferential sidewall 692 extending between a bottom surface 640 and a keel surface 644 (or protruding surface 644 or contact surface 644) opposite the bottom surface 640. The circumferential sidewall 692 is threaded, carrying external threads 678. The external threads 678 of the adjustment member 636 may selectively engage with the internal threads 674 of the recess 604 to provisionally secure the adjustment member 636 within the recess 604. In other embodiments (not shown), the adjustment member 136 may be secured to the golf club head 10 by other mechanical means (e.g., a magnet, etc.). A tool recess 696 is disposed in the keel surface 644 and selectively engages with a tool bit (not shown) to rotate the adjustment member 636 into and out of the recess 604. In some embodiments (not shown), a spring can be disposed between the bottom wall 608 of the recess 604 and the bottom surface 640 of the adjustment member 636 to bias the bottom surface 640 away from the bottom wall 608 .

[0121] As shown in FIGS. 40-43, the adjustment member 636 is repositionable within the recess 604 in a number of adjustment positions between a first retracted adjustment position (FIGS. 40 and 42) and a second extended adjustment position (FIGS. 41 and 43). For example, FIGS. 40 and 43 show the adjustment member 636 in a first adjustment position in which the bottom surface 640 is disposed closer to the bottom wall 608. In FIGS. 41 and 43, the adjustment member 636 is shown in a second adjustment position in which the bottom surface 640 is disposed further from the bottom wall 608. The adjustment member 636 may also be positioned in any number of intermediate adjustment positions (not shown) between the first and second adjustment positions.

[0122] In the illustrated embodiment, when the adjustment member 636 is in the first adjustment position, the keel surface 644 is below or relatively flush with the adjacent surface 78. When the adjustment member 636 is in the second adjustment position, the keel surface 644 protrudes beyond the adjacent surface 78 (or edge 78). When the adjustment member is disposed in an intermediate adjustment position (not shown) between the first and second adjustment positions, the keel surface 644 protrudes to an intermediate extent that is greater than the first adjustment position and less than the second adjustment position.

[0123] In operation of the rest surface angle adjuster 600, the position of the adjustment member 636 within the recess 604 can be adjusted by rotating the adjustment member 636 to move the adjustment member 636 into and out of the recess 604. For example, to move the adjustment member 636 toward a first adjustment position (FIG. 40), the adjustment member is rotated in a first rotational direction to move the adjustment member toward the recess 604 and toward the bottom wall 608. Similarly, the adjustment member 636 can be moved from the first adjustment position (FIG. 40) to a second adjustment position (FIG. 41) by rotating the adjustment member 636 in a second rotational direction opposite the first rotational direction.

[0124] By repositioning the adjustment member 636 between the first and second adjustment positions, the keel height H can be adjusted to manipulate the rest surface angle at address. For example, with the adjustment member 636 in the first adjustment position (FIG. 40) where the keel surface 644 does not extend from the recess 604, the keel surface 644 does not contact the ground and therefore does not create its own keel point when the golf club head 10 is in the address position. By placing the adjustment member 636 in the first adjustment position, the rest surface angle at address can be oriented toward a more open or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0125] As another example, the adjustment member 636 can be reoriented to a second adjustment position (FIG. 41) in which the keel surface 644 extends from the recess 604 at a sufficient keel height H such that when the golf club head 10 is in the address position, the keel surface 644 contacts the ground, thus generating its own keel point. In the second position, the keel point generated by the keel surface 644 is located behind the CG 58 (i.e., between the back end 42 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 636 to the second adjustment position, the rest surface angle at address can be redirected from an open position to a neutral position, or from a neutral position to a closed position to a more closed position, with the toe end 18 being closer to the golf ball than the heel end 22 at address (e.g., to facilitate a draw or hook). Adjustment between the first and second adjustment positions also moves the keel point on the sole surface 74 from a first position to a second position, as described above with respect to Figures 4-9. As a result, the change in the rest surface angle comparing the first adjustment position to the second adjustment position can be up to 10 degrees. For example, the change in the rest surface angle comparing the first adjustment position to the second adjustment position can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0126] Similarly, the adjustment member 636 can be further repositioned to any intermediate position (not shown) between the first and second adjustment positions to adjust the extent to which the rest surface angle when addressed is reoriented to a more closed or open position.

[0127] 44-49, an embodiment of a rest surface angle adjuster 700 is shown. Adjuster 700 has a similar configuration to adjusters 100, 200, 300, 400, 500 and 600, with similar names and / or numbers identifying similar configurations. In some embodiments (not shown), any of adjusters 100, 200, 300, 400, 500 or 600 may be the first adjuster 100, 200, 300, 400, 500 or 600, and adjuster 700 may be a second adjuster that is combined with the first adjuster 100, 200, 300, 400, 500 or 600 of the golf club head 10.

[0128] The adjuster 700 includes a recess 704 located at the heel end 22 of the golf club head 10. In the illustrated embodiment, the recess 704 is a hosel recess 704 that extends from a hosel wall 724 proximate the hosel 50 toward an opening 788 proximate the sole 30. The hosel recess 704 is a substantially straight hosel recess 704 that extends along a portion of the heel end 22. The hosel recess 704 is located at the heel end 22 closer to the face 34 than the back end 42 and forward of the CG.

[0129] In the illustrated embodiment, the hosel recess 704 includes a hosel wall 724, a bottom wall 708, and an opposing sidewall 712. The bottom wall 708 and the sidewall 712 define an opening 788 adjacent the sole 30. The bottom wall 708 defines a sliding surface 732. The sole 30 has a sole surface 74. The sole surface 74 has an abutment surface portion 78 that immediately surrounds the opening 788 where the sole surface 74 meets the sidewall 712 and the bottom wall 708. A portion of the sole surface 74 at least partially bounds the hosel recess 704, and in some embodiments, the abutment surface portion 78 is a recess edge 78.

[0130] In the illustrated embodiment, the hosel wall 724 includes an aperture for receiving a club shaft fastener (not shown). The shaft fastener cooperates with the hosel bore to secure the golf club head 10 to a golf club shaft (not shown). The hosel recess 704 thus allows access to the hosel fastener so that the golf club head 10 may be selectively secured or removed from the shaft, or so that the golf club head 10 may be adjusted relative to the shaft (i.e., to provide a more open or closed rest face angle).

[0131] The adjuster 100 also includes an adjustment member 736 that is at least partially received in the hosel recess 704. The adjustment member 736 includes a body 760 extending longitudinally between a first end 764 and a second end 768. The body 760 includes a bottom surface 740, a keel surface 744 (or protruding surface 744 or contact surface 744) located at the first end 764, and a through slot 748 extending between the bottom surface 740 and a top surface 782. The through slot 748 can receive a threaded fastener 752 that selectively engages with a threaded hole 756 in the bottom wall 708 to temporarily secure the adjustment member 736 to the golf club head 10 within the hosel recess 704. In other embodiments (not shown), the adjustment member 136 can be secured to the golf club head 10 by other mechanical means (e.g., magnets, etc.). When inserted into hosel recess 704, bottom surface 740 of adjustment member 736 abuts slide surface 732. Keel surface 744 projects above abutment surface portion 78 to a keel height H, measured perpendicular to abutment surface portion 78 between abutment surface portion 78 and keel surface 744.

[0132] As shown in FIGS. 46-49, the adjustment member 736 is repositionable within the hosel recess 704 in a number of adjustment positions between a first retracted adjustment position adjacent the hosel wall 724 (FIGS. 46 and 48) and a second extended adjustment position adjacent the opening 788 (FIGS. 47 and 49). The adjustment member 736 may also be positioned in any number of intermediate adjustment positions (not shown) between the first and second adjustment positions. In other embodiments (not shown), the adjustment member 736 may be fixed in only a discrete number of adjustment positions (i.e., two adjustment positions, three adjustment positions, etc.) using surface features within the recess 704 or on the adjustment member 736 as described above with respect to the adjuster 100.

[0133] In the illustrated embodiment, when the adjustment member 736 is in the first adjustment position, the keel surface 744 is below or relatively flush with the adjacent surface 78. When the adjustment member 736 is in the second adjustment position, the keel surface 744 protrudes beyond the adjacent surface 78 (or edge 78). When the adjustment member is disposed in an intermediate adjustment position (not shown) between the first and second adjustment positions, the keel surface 744 protrudes an intermediate amount, greater than the first adjustment position and less than the second adjustment position.

[0134] In operation of the rest surface angle adjuster 100, the position of the adjustment member 736 within the hosel recess 704 can be adjusted by loosening the fasteners 752 and sliding the adjustment member 736 toward the opening 788 or toward the hosel wall 724. For example, the adjustment member 736 can be repositioned from a first adjustment position ( FIG. 46 ) to a second adjustment position ( FIG. 47 ) by loosening the fasteners 752, sliding the adjustment member 736 within the hosel recess 704 from the hosel wall toward the opening 788, and then re-tightening the fasteners 752 to secure the adjustment member 736 in the second adjustment position. Similarly, the adjustment member 736 can be repositioned from the second adjustment position ( FIG. 47 ) to the first adjustment position ( FIG. 46 ) by loosening the fasteners 752 and sliding the adjustment member 736 from the opening 788 toward the hosel wall 724.

[0135] By repositioning the adjustment member 736 between the first and second adjustment positions, the keel height H can be adjusted to manipulate the rest surface angle at address. For example, with the adjustment member 736 in the first adjustment position (FIG. 46) where the keel surface 744 does not extend from or is fully contained within the hosel recess 704, the keel surface 744 does not contact the ground and does not create its own keel point when the golf club head 10 is in the address position. By placing the adjustment member 736 in the first adjustment position, the rest surface angle at address can be oriented toward a more closed or neutral position (or neutral or square configuration) with neither the toe end 18 nor the heel end 22 being closer to the golf ball when addressed (e.g., promoting a straighter ball flight).

[0136] As another example, the adjustment member 736 can be reoriented to a second adjustment position (FIG. 47) in which the keel surface 744 extends from the hosel recess 704 at a sufficient keel height H such that the keel surface 744 contacts the ground when the golf club head 10 is in the address position, thus generating its own keel point. In the second position, the keel point generated by the keel surface 744 is located forward of the CG 58 (i.e., between the face 34 and the CG 58 in a direction parallel to the z-axis 70). By repositioning the adjustment member 736 to the second adjustment position, the rest surface angle at address can be shifted from a closed position to a neutral position, or from a neutral position to an open position to a more open position, with the heel end 22 being closer to the golf ball than the toe end 18 at address (e.g., promoting a fade or slice). Adjustment between the first and second adjustment positions also moves the keel point on the sole surface 74 from a first position to a second position, as described above with respect to Figures 4-9. As a result, the change in the rest surface angle comparing the first adjustment position to the second adjustment position can be up to 10 degrees. For example, the change in the rest surface angle comparing the first adjustment position to the second adjustment position can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees.

[0137] Similarly, the adjustment member 736 can be further repositioned to any intermediate position (not shown) between the first and second adjustment positions to adjust the extent to which the rest surface angle when addressed is reoriented to a more open or closed position.

[0138] In all of the embodiments of regulators 100, 200, 300, 400, 500, 600 and / or 700 described thus far that include a fastener such as fastener 152 described with respect to regulator 100 of FIGS. 4-9 , adjustment member 136, 236, 336, 436, 536, 636 and / or 736 may also be removed from recess 104, 204, 304, 404, 504, 604 and / or 704 by undoing the fastener. Adjustment member 136, 236, 336, 436, 536, 636 and / or 736 may then be rotated, removed and replaced or otherwise reoriented and reinserted, or another adjustment member may be inserted into recess 104, 204, 304, 404, 504, 604 and / or 704 (not shown). The adjustment members 136, 236, 336, 436, 536, 636 and / or 736 can be reattached to the recesses 104, 204, 304, 404, 504, 604 and / or 704 by reinserting and re-tightening the fasteners within the club head 10. In other embodiments of the adjusters 100, 200, 300, 400, 500, 600 and / or 700, the fasteners are not removable and therefore the adjustment members 136, 236, 336, 436, 536, 636 and / or 736 are not removable from the recesses.

[0139] In some embodiments, one or more of the above-mentioned adjusters 100, 200, 300, 400, 500, 600 and / or 700 may be combined into one club body such that the first and second adjusters are present on one club body, for example, any one of adjusters 100, 200, 300, 400, 500 and 600 may be combined into adjuster 700.

[0140] Additionally, although adjusters 100, 200, 300, 400, 500 and 600 have been described as typically being located behind the CG, any of adjusters 100, 200, 300, 400, 500 and 600 can be located in front of the CG to differently reorient the rest plane angle at address.

[0141] In some embodiments, one or more of the above-mentioned adjusters 100, 200, 300, 400, 500, 600 and / or 700 can be combined into one club body such that the first and second adjusters are present in one club body, for example, any one of adjusters 100, 200, 300, 400, 500 and 600 can be combined into adjuster 700. In these embodiments, the first adjuster can be located behind the CG and the second adjuster can be located in front of the CG. As a result, the adjustment range of the rest plane angle at address can be greater than embodiments utilizing a single adjuster. For example, combining adjuster 100 with adjuster 700 can provide a greater adjustment rest plane angle range than adjuster 100 alone.

[0142] The substitution of one or more claimed elements constitutes a rearrangement, not a repair. Moreover, benefits, other advantages, and solutions to problems have been described above with respect to particular embodiments. However, the benefits, advantages, solutions to problems, and any element or elements that may give rise to or make more apparent any benefit, advantage, or solution should not be construed as a key, necessary, or essential feature or element of such claim unless such benefit, advantage, solution, or element is expressly recited in any or all of the claims.

[0143] Because the rules of golf may change from time to time (e.g., new rules may be adopted or old rules may be eliminated or modified by golf's standards organizations and / or governing bodies, such as the United States Golf Association (USGA), the Royal and American Golf Association (R&A), etc.), golf equipment related to the apparatus, methods, and articles of manufacture described herein may or may not conform to the rules of golf at any particular time. Accordingly, golf equipment related to the apparatus, methods, and articles of manufacture described herein may be advertised, marketed, and / or sold as conforming or non-conforming golf equipment. The apparatus, methods, and articles of manufacture described herein are not limited in this respect.

[0144] Although the above embodiments may be described in the context of a wood-type golf club, the devices, methods, and articles of manufacture described herein may be applied to a variety of golf clubs, including drivers, fairway woods, hybrids, crossovers, or any hollow-type golf club, or may be applied to other types of sports equipment, such as hockey sticks, tennis racquets, fishing rods, ski poles, etc.

[0145] Furthermore, embodiments and limitations disclosed herein are not available to the public under the doctrine of public domain if the embodiment and / or limitation (1) is not explicitly claimed in the claims and (2) is a potential equivalent of an explicit element and / or limitation of the claims under the doctrine of equivalents.

[0146] Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects of the invention described.

[0147] Clause 1: A golf club head comprising: a club body having a crown opposite a sole, a toe end opposite the heel end, a rear end opposite a face, and a hosel, the sole including a sole surface; a stationary surface angle adjuster including a recess formed in the sole such that a portion of the sole surface at least partially defines the recess; and an adjustment member having a keel surface, disposed within the recess, and positionable between a first adjustment position and a second adjustment position; wherein when the adjustment member is positioned in the first adjustment position, the keel surface is at a first distance relative to the portion of the sole surface in a direction perpendicular to the portion of the sole surface, and when the adjustment member is positioned in the second adjustment position, the keel surface is at a second distance unequal to the first distance in said direction relative to the portion of the sole surface.

[0148] Clause 2: The golf club head of clause 1, wherein when the adjustment member is disposed in the first adjustment position, the keel surface is located within the recess.

[0149] Clause 3: A golf club head as described in clause 1, wherein the adjustment member includes a through slot, the adjustment member includes a fastener that selectively secures the adjustment member in each of a first adjustment position and a second adjustment position, and the adjuster is configured such that the fastener is movable relative to the adjustment member within the through slot.

[0150] Clause 4: The golf club head of clause 3, wherein the adjustment member is slidable within the recess relative to the club body between first and second adjustment positions.

[0151] Clause 5: The golf club head adjustment position of clause 1, wherein the recess includes a channel formed in an inner surface thereof, and the adjustment member includes a protrusion configured to engage the channel to selectively secure the adjustment member in one of the first adjustment position and the second adjustment position.

[0152] Clause 6: A golf club head comprising: a club body having a crown opposite a sole, a toe end opposite a heel end, a rear end opposite a face, and a hosel, the sole including a sole surface; and a stationary surface angle adjuster including an adjustment member positionable within a recess formed in the sole and defining a recess edge, the adjustment member including a keel surface being positionable between a first adjustment position and a second adjustment position, the adjuster being configured such that when the adjustment member is positioned in the first adjustment position, a portion of the keel surface is at a first distance from a portion of the sole edge, and when the adjustment member is positioned in the second adjustment position, a portion of the keel surface is at a second distance from the portion of the sole edge that is greater than the first distance.

[0153] Clause 7: The golf club head of clause 6, wherein a portion of the keel surface is located within the recess when the adjustment member is disposed in the first adjustment position.

[0154] Clause 8: The golf club head of clause 6, wherein the adjustment member is pivotable about a pivot axis between a first adjustment position and a second adjustment position.

[0155] Clause 9: The golf club head of clause 8, wherein the adjustment member includes a first end and a second end, the keel surface extending between the first end and the second end, and the adjuster is configured such that when the adjustment member is positioned in a first adjustment position, a portion of the keel surface near the first end protrudes out of the recess and a portion of the keel surface near the second end is located within the recess, and when the adjustment member is positioned in a second adjustment position, a portion of the keel surface near the first end is located within the recess and a portion of the keel surface near the second end protrudes out of the recess.

[0156] Clause 10: The golf club head of clause 9, wherein the adjustment member is further positionable in a third adjustment position, and the adjuster is configured such that when the adjustment member is positioned in the third adjustment position, the keel surface is generally flush with a portion of the sole surface.

[0157] Clause 11: The golf club head of clause 8, wherein the adjustment member includes a bottom surface opposite the keel surface, the adjuster includes a threaded hole adjacent the recess and an adjustment screw selectively receivable in the threaded hole, the adjustment screw having a tip portion selectively engageable with the bottom surface, and the adjustment screw is rotatable to reposition the adjustment member between first and second adjustment positions.

[0158] Clause 12: The golf club head of clause 6, wherein the adjustment member further includes a spring biasing the adjustment member toward one of the first adjustment position and the second adjustment position.

[0159] Clause 13: A golf club head comprising: a club body having a crown opposite a sole, a toe end opposite a heel end, a rear end opposite a face, and a hosel, the sole including a sole surface; and a rest surface angle adjuster including an adjustment member positionable within a recess formed in the sole, the adjustment member having a keel surface positionable between a first adjustment position and a second adjustment position, wherein the rest surface angle adjuster is configured such that when the adjustment member is positioned in the first adjustment position, the adjustment member provides a keel point at a first position on the club body when the club body is in an address position, and when the adjustment member is positioned in the second adjustment position, the adjustment member provides a keel point at a second position different from the first position on the club body when the club body is in the address position.

[0160] Clause 14: The golf club head of clause 13, wherein when the adjustment member is disposed in the first adjustment position, the adjustment member is completely within the recess.

[0161] Clause 15: The golf club head of clause 13, wherein the second position is closer to the face than the first position.

[0162] Clause 16: The golf club head of clause 13, wherein the first position is closer to the face than the second position.

[0163] Clause 17: The golf club head of clause 13, wherein the adjustment member is rotatable about a pivot axis between a first adjustment position and a second adjustment position.

[0164] Clause 18: A golf club head as described in clause 13, wherein the adjustment member includes a through slot, the adjustment member includes a fastener that selectively secures the adjustment member in each of a first adjustment position and a second adjustment position, and the adjuster is configured such that the fastener is movable relative to the adjustment member within the through slot.

[0165] Clause 19: The golf club head of clause 18, wherein the adjustment member is slidable within the recess relative to the club body between first and second adjustment positions.

[0166] Clause 20: A golf club head adjustment position as described in clause 13, wherein the recess includes a channel formed in an inner surface thereof, and the adjustment member includes a protrusion configured to engage the channel to selectively secure the adjustment member in one of the first adjustment position and the second adjustment position.

[0167] Clause 21: A golf club head comprising: a club body having a crown opposite a sole having a sole surface, a toe end opposite the heel end, a rear end opposite a face, a hosel, and a hosel recess having a hosel surface configured to receive a fastener for securing a club shaft to the club body, the hosel recess defining a recess edge, and a portion of the sole surface bounding the recess edge; and a stationary surface angle adjuster including an adjustment member disposed within the hosel recess, the adjustment member having a keel surface, the adjustment member being positionable between a first adjustment position and a second adjustment position, the adjuster being configured such that when the adjustment member is positioned in the first adjustment position, the keel surface is at a first distance relative to the portion of the sole surface in a direction perpendicular to the portion of the sole surface, and when the adjustment member is positioned in the second adjustment position, the keel surface is at a second distance relative to the portion of the sole surface in said direction, the second distance not equal to the first distance.

[0168] Clause 22: The golf club head of clause 21, wherein the rest surface angle adjuster is configured such that when the adjustment member is positioned in a first adjustment position, the adjustment member provides a keel point at a first position on the club body, and when the adjustment member is positioned in the second adjustment position, the adjustment member provides a keel point at a second position on the club body that is different from the first position.

[0169] Clause 23: The golf club head of clause 21, wherein the adjustment member is further positionable at a plurality of intermediate adjustment positions between the first adjustment position and the second adjustment position.

[0170] Clause 24: A golf club head as described in Clause 23, wherein the adjustment member includes a through slot, the adjuster includes a fastener that selectively secures the adjustment member in each of a first adjustment position and a second adjustment position, and the adjuster is configured such that the fastener is movable relative to the adjustment member within the through slot.

[0171] Clause 25: The golf club head of clause 24, wherein the adjustment member is slidable relative to the club body within the hosel recess between first and second adjustment positions.

[0172] Various features of the disclosure are set forth in the following claims.

Claims

1. A golf club head, a club body having a crown opposite a sole, a toe end opposite a heel end, a back end opposite a face, and a hosel, the sole including a sole surface; a rest surface angle adjuster having a recess located in the sole and an adjustment member at least partially received within the recess; the recess is closer to the heel end than to the toe end; the recess is defined by a bottom wall, a front wall, a rear wall opposite the front wall, and opposing recess sidewalls; The recess has a pair of openings, an opening in each recess sidewall, each opening configured to receive one of two cylindrical projections to secure the adjustment member to the recess; the adjustment member has a tapered bottom surface, a keel surface opposite the tapered bottom surface, a first end, a second end opposite the first end, an adjustment member first sidewall, an adjustment member second sidewall, and the two cylindrical projections; a cylindrical projection projects outwardly from the adjustment member first side wall and a cylindrical projection projects outwardly from the adjustment member second side wall; The two cylindrical projections define a pivot axis; a spring disposed between the front wall of the recess and the first end of the adjustment member and biasing the tapered bottom surface toward the bottom wall; a threaded hole extends through the club body from a rear end of the club body to the rear wall and is configured to engage an adjustment screw; The adjustment screw has a tip portion that projects into the recess, The adjustment screw is configured such that the tip portion abuts the tapered bottom surface, and further, when the adjustment screw is screwed, the tip portion presses against the tapered bottom surface, thereby causing the adjustment member to rotate about the pivot axis, such that the adjustment member is repositionable within the recess at a plurality of adjustment positions.

2. The golf club head of claim 1 , wherein the adjustment member is repositionable between a retracted position and an extended position.

3. The golf club head of claim 2 , wherein the adjustment member is repositionable at any number of intermediate adjustment positions between the retracted position and the extended position.

4. The golf club head of claim 1 , wherein the adjustment member is positionable in a discrete number of adjustment positions.

5. 3. The golf club head of claim 2, wherein the keel surface is below or flush with adjacent club body surfaces when the adjustment member is in the retracted position.

6. The golf club head of claim 2 , wherein the keel surface protrudes beyond an adjacent club body surface when the adjustment member is in the extended position.

7. a keel height H measured perpendicular to said adjacent club body surface from said adjacent club body surface to said keel surface; 7. The golf club head of claim 6, wherein the keel height H is sufficient to cause the keel surface to contact the ground to create a keel point when the golf club head is in an address position.

8. 7. The golf club head of claim 6, wherein repositioning the adjustment member from the retracted position to the extended position places the golf club head in a more closed position, the toe end being closer to the golf ball than the heel end in the more closed position as measured with the golf club head in an address position.

9. the golf club head further comprises a rest plane angle defined as an angle formed between the face and an imaginary line extending from a golf ball along a player's intended target line when in an address position; 9. The golf club head of claim 6, wherein the adjustment member is repositionable between the retracted position having a keel height H of zero and the extended position having a keel height H that results in a rest surface angle that varies between 1 degree and 10 degrees compared to the rest surface angle when the adjustment member is in the retracted position.

10. 10. The golf club head according to claim 6, wherein the keel surface is located rearward of the center of gravity of the golf club head.

11. The golf club head of claim 2 , wherein the adjustment member is adjustable within the recess when the adjustment screw is loosened and is fixed when the adjustment screw is tightened.

12. The golf club head of claim 2 , wherein the adjustment member is completely within the recess when the adjustment member is in the retracted position.

Images