Golf club with adjustable weight assembly

Abstract

A golf club having an adjustable weight assembly is provided. An iron-type golf club head includes a body, a recessed channel, and a weight assembly. The body includes a ball striking face, a sole, and a rear portion positioned between the sole and the ball striking face. The recessed channel is formed in the rear portion. The weight assembly includes a weight, a cover, and a fastener, the weight being at least partially disposed within the recessed channel and configured to move in the recessed channel, the fastener coupling the cover to the body and configured to indirectly retain the weight in the recessed channel through the cover.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is a continuation-in-part of U.S. patent application No. 17 / 362,488, filed on June 29, 2021, which is a continuation-in-part of U.S. patent application No. 17 / 222,774, filed on April 5, 2021, which is a continuation-in-part of U.S. patent application No. 17 / 122,887, filed on December 15, 2020, which is a continuation-in-part of U.S. patent application No. 16 / 843,640, filed on April 8, 2020 (now U.S. Patent No. 10,918,917), which is a continuation-in-part of U.S. patent application No. No. 16 / 843,640 is a continuation-in-part of U.S. Patent Application No. 16 / 708,255 filed December 9, 2019 (now U.S. Patent No. 11,090,536), which is a continuation-in-part of U.S. Patent Application No. 16 / 535,844 filed August 8, 2019 (now U.S. Patent No. 10,926,143), which is a continuation-in-part of U.S. Patent Application No. 16 / 387,859 filed April 18, 2019 (now U.S. Patent No. 10,695,628), which are incorporated herein by reference in their entireties. To the extent appropriate, this application claims priority to the above-referenced applications. Background Art

[0003] After being hit by a golf club, the flight characteristics of a golf ball depend not only on the swing of the golf club, but also on the golf club itself. For example, the flight characteristics of a golf ball, such as right deviation, left deviation, launch angle, ball rotation and speed, are affected by the design of the golf club. By adjusting one or more design characteristics of the golf club, the flight characteristics of the golf ball can be improved, thereby improving the performance of the golf club. In some examples, adjusting the center of gravity (CG) and / or moment of inertia (MOI) of the club head of the golf club by selective weight placement can affect the flight characteristics of the golf ball. However, these adjustable weights need to be firmly attached to the golf club head and need to be selectively movable. Therefore, it is necessary to improve the adjustable weight assembly for the golf club head. Summary of the invention

[0004] In one aspect, the present technology relates to an iron-type golf club head, comprising: a body, the body including: a striking face having a lower leading edge, a sole extending from the lower leading edge, and a back portion positioned behind the striking face and connected to a rear portion of the sole; a recessed channel formed in the back portion; and a weight assembly, the weight assembly including: a weight at least partially disposed in the recessed channel and configured to move in the recessed channel, a cover suitable for releasably securing the weight in the recessed channel, and a fastener connecting the cover to the body and being selectively movable along a fastener axis, the fastener axis forming a fastener angle of approximately 0 degrees to approximately 90 degrees with a striking face plane, wherein the striking face plane is tangent to an outermost surface of the striking face, the fastener angle being formed in a cross-sectional plane, and the fastener angle is measured in a counterclockwise direction from the striking face plane to the fastener axis when the cross-sectional plane is viewed in a toe-to-heel direction.

[0005] In one example, the cover can be positioned in at least an unlocked configuration and a locked configuration, in which the cover is at least partially raised from the recessed channel and the counterweight can be selectively moved in the recessed channel, and in the locked configuration, the cover is at least partially disposed in the recessed channel and the counterweight is fixed in the recessed channel. In another example, the counterweight engages with the cover so as to move with the cover between the locked configuration and the unlocked configuration. In another example, the cover includes a flange, and the counterweight has a groove shaped and sized to receive at least a portion of the flange so that the counterweight and the cover are slidably engaged. In another example, the counterweight remains in the recessed channel when the cover moves between the locked configuration and the unlocked configuration. In another example, in the locked configuration, about 0% to about 30% of the outer surface of the counterweight is visible. In another example, the recessed channel has a bottom track that deviates from the outer surface of the body, and the cover extends at least partially over the recessed channel to cover the entire bottom track. In another example, the recessed channel has a bottom track that is offset from the outer surface of the body, and the cover extends partially over the recessed channel and exposes at least a portion of the bottom track.In another example, the iron-type golf club head is a wedge-type golf club head.

[0006] On the other hand, the present technology relates to an iron-type golf club head, comprising: a body, the body including: a striking face having an upper topline edge and a lower leading edge, a sole extending from the lower leading edge and having a rear portion away from the lower leading edge, and a first back surface connected to the rear portion and extending toward the upper topline edge, wherein one or more of the striking face, the sole and the first back surface define at least a portion of an outer surface of the body; a recessed channel defined in the first back surface; and a weight assembly, the weight assembly including: a weight at least partially disposed in the recessed channel, a cover extending at least partially over the recessed channel, and a fastener connecting the cover to the body, the fastener being suitable for indirectly retaining the weight in the recessed channel through the cover, and wherein the cover can be positioned in at least an unlocked configuration and a locked configuration, in which the cover is at least partially raised from the recessed channel and the weight can be selectively moved in the recessed channel, and in the locked configuration, the cover is at least partially disposed in the recessed channel and the weight is fixed in the recessed channel.

[0007] In one example, a fastener axis defined by the fastener intersects a ball striking face plane tangent to the outermost surface of the ball striking face at a point closer to the lower front edge than the upper top line edge. In another example, the fastener has a height defined in a direction from the lower front edge to the upper top line edge, and the height of the fastener increases when the position of the cover changes from a locked configuration to an unlocked configuration. In another example, the fastener defines a fastener axis that forms a fastener angle of about 0 degrees to about 90 degrees with the ball striking face plane, wherein the ball striking face plane is tangent to the outermost surface of the ball striking face, the fastener angle is formed in a cross-sectional plane, and when the cross-sectional plane is observed in the direction from the toe to the heel, the fastener angle is measured from the ball striking face plane to the fastener axis in a counterclockwise direction. In another example, the fastener axis defined by the fastener intersects the ball striking face. In another example, the body also includes a second back surface connected between the first back surface and the upper top line edge of the ball striking face, and the second back surface forms an obtuse angle with the first back surface at the junction between the first back surface and the second back surface. In another example, the body has a fastener hollow portion at a position between the first back surface and the second back surface and adapted to receive at least a portion of the fastener, and the recessed channel is spaced apart from the fastener hollow portion. In another example, the body includes at least one locating lug located on a bottom track of the recessed channel offset from an outer surface of the body, and the counterweight includes a recess shaped and sized to receive at least a portion of the at least one locating lug to at least partially define the position of the counterweight within the recessed channel. In another example, the recessed channel has a first sidewall along the toe-heel direction and adjacent to the rear portion of the bottom, the first sidewall including at least one recess, and the counterweight includes a protruding position indicator configured to selectively engage with the at least one recess. In another example, the cover includes at least one locating groove, and wherein the counterweight includes a protruding position indicator configured to selectively engage with the at least one locating groove.

[0008] In another aspect, the present technology relates to an iron-type golf club head, comprising: a body having an outer surface; a recessed channel formed in the outer surface; and a weight assembly, the weight assembly comprising: a weight at least partially disposed within the recessed channel and configured to move in the recessed channel, a cover adapted to releasably secure the weight within the recessed channel, and a fastener coupling the cover to the body and selectively movable along a fastener axis that intersects a ball striking face of the body.

[0009] This summary is provided to introduce a series of concepts in a simplified form, which are further described in the detailed description below. This summary is neither intended to identify key features or essential features of the claimed subject matter nor is it intended to be used to limit the scope of the claimed subject matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Non-limiting and non-exhaustive examples are described with reference to the following figures.

[0011] Figure 1 is a perspective view of the sole of a golf club head with an exemplary weight assembly.

[0012] Figure 2 It is along Figure 1 A cross-sectional view of a golf club head taken along line 2-2 in FIG. 1 , wherein the weight assembly is in a locked configuration.

[0013] Figure 3 It is along Figure 2 A cross-sectional view of the counterweight assembly taken along line 3-3 in FIG.

[0014] Figure 4 It is along Figure 1 A cross-sectional view of a golf club head taken along line 2-2 in FIG. 1 , wherein the weight assembly is in an unlocked configuration.

[0015] Figure 5 It is along Figure 4 A cross-sectional view of the counterweight assembly taken along line 5-5 in FIG.

[0016] Figure 6 is a perspective view of the sole of a golf club head with another weight assembly.

[0017] Figure 7 It is along Figure 6 A cross-sectional view of the counterweight assembly taken along line 7-7 in FIG.

[0018] Figure 8 is a perspective view of a golf club head with another weight assembly.

[0019] Fig. 9 is a perspective view of the sole of a golf club head with another weight assembly.

[0020] Fig.10 yes Fig. 9 A top view of a golf club head is shown with a portion of the crown removed.

[0021] Fig.11 It is along Fig. 9 A cross-sectional view of the counterweight assembly taken along line 11-11 in FIG.

[0022] Fig.12 It is along Fig. 9 A cross-sectional view of the counterweight assembly taken along line 12-12 in FIG.

[0023] Fig.13 is a cross-sectional view of another counterweight assembly.

[0024] Fig.14 is a perspective view of the sole of a golf club head with another weight assembly.

[0025] Fig.15 It is along Fig.14 A cross-sectional view of a golf club head taken along line 15-15 in FIG. 1 , showing the weight assembly.

[0026] Fig.16 It is along Fig.14 A cross-sectional view of the counterweight assembly taken along line 16-16 in FIG.

[0027] Fig.17 It is along Fig.14 A cross-sectional view of the counterweight assembly taken along line 17-17 in FIG.

[0028] Fig.18 is an exploded perspective view of a golf club head with another weight assembly.

[0029] Fig.19 It is along Fig.18 A cross-sectional view of the counterweight assembly taken along line 19-19 in FIG.

[0030] Fig. 20 is a partial cutaway perspective view of another counterweight assembly.

[0031] Fig.21 yes Fig. 20 Another cross-sectional view of the counterweight assembly is shown.

[0032] Fig. 22 is a perspective view of the sole of a golf club head with another weight assembly in a locked configuration.

[0033] Fig.23 It is along Fig. 22 A cross-sectional view of the counterweight assembly taken along line 23-23 in FIG.

[0034] Fig.24 Is has Fig. 22 A perspective view of the bottom of a golf club head showing the weight assembly with the weight assembly in an unlocked configuration.

[0035] Fig.25 It is along Fig.24 A cross-sectional view of the counterweight assembly taken along line 25-25 in FIG.

[0036] Fig.26 is a perspective view of the sole of a golf club head with another weight assembly.

[0037] Fig. 27 It is along Fig.26 A cross-sectional view of the counterweight assembly taken along line 27-27 in FIG.

[0038] Fig.28 is an exploded perspective view of the sole of a golf club head with another weight assembly.

[0039] Fig.29 yes Fig.28 A cross-sectional view of the counterweight assembly is shown.

[0040] Fig.30 is a perspective view of the sole of a golf club head with another weight assembly.

[0041] Fig.31 It is along Fig.30 A cross-sectional view of the counterweight assembly taken along line 31-31 in FIG.

[0042] Fig.32 is a perspective view of the sole of a golf club head with another weight assembly.

[0043] Fig.33 is a perspective view of the sole of a golf club head with another weight assembly.

[0044] Fig.34 is a perspective view of the sole of a golf club head with another weight assembly.

[0045] Fig.35 is a perspective view of the sole of a golf club head with another weight assembly.

[0046] Fig.36 is a perspective view of the sole of a golf club head with another weight assembly.

[0047] Fig.37 yes Fig.36 An exploded perspective view of the counterweight assembly is shown.

[0048] Fig.38 It is along Fig.36 A cross-sectional view of the counterweight assembly taken along line 38-38 in FIG.

[0049] Fig.39 yes Fig.36 A view of the interior surface of the cover of the counterweight assembly is shown.

[0050] Fig.40 It is in a counterweight sliding structure and moves along Fig.36A cross-sectional view of the counterweight assembly taken along line 40-40 in FIG.

[0051] Fig.41 is in the counterweight removed configuration and along Fig.36 A cross-sectional view of the counterweight assembly taken along line 40-40 in FIG.

[0052] Fig.42 is a perspective view of the sole of another golf club head with another weight assembly, wherein the other weight assembly is in a locked configuration.

[0053] Fig.43 Is has Fig.42 A perspective view of the bottom of a golf club head showing the weight assembly with the weight assembly in an unlocked configuration.

[0054] Fig.44 It is along Fig.42 4 is a cross-sectional view of a golf club head with a weight assembly taken along line 44-44 in FIG.

[0055] Fig.45 It is along Fig.42 A partial perspective cross-sectional view of the counterweight assembly taken along line 44-44 in FIG.

[0056] Fig.46 is a bottom view of a golf club head with another weight assembly.

[0057] Fig.47 It is along Fig.46 A perspective cross-sectional view of a golf club head with a weight assembly taken along line 47-47 in FIG.

[0058] Fig.48 is another perspective view of a golf club head.

[0059] Fig.49 Is a counterweight assembly with another Fig.48 A bottom view of the club head is shown.

[0060] Fig.50 is a cross-sectional view of another counterweight assembly.

[0061] Fig.51 yes Fig.50 A schematic diagram of the counterweight assembly is shown.

[0062] Fig.52 yes Fig.50 A top view of the cover of the counterweight assembly is shown.

[0063] Fig.53 yes Fig.50 A side view of the cover of the counterweight assembly is shown.

[0064] Fig.54 is a bottom view of another golf club head having another weight assembly.

[0065] Fig.55 It is along Fig.54 A perspective cross-sectional view of the counterweight assembly taken along line 54-54 in FIG.

[0066] Fig.56 It is along Fig.54 A cross-sectional view of the cover taken along line 54-54 in FIG.

[0067] Fig.57 yes Fig.55 and Fig.56 A perspective view of the counterweight of the counterweight assembly is shown.

[0068] Fig.58 yes Fig.57 A schematic top view of the counterweight is shown.

[0069] Fig.59 is a schematic perspective view of an exemplary testing machine having another counterweight assembly.

[0070] Fig.60 It is along Fig.59 A cross-sectional view of the counterweight assembly taken along line 60-60 in FIG.

[0071] Fig.61 It is along Fig.59 Another cross-sectional view of the counterweight assembly taken along line 61-61 in FIG.

[0072] Fig.62 is a schematic perspective view of another testing machine having another counterweight assembly.

[0073] Figures 63A to 63E The counterweight is in various positions, along Fig.62 A cross-sectional view of the counterweight assembly taken along line 63-63 in FIG.

[0074] Fig.64 It is along Fig.62 Another cross-sectional view of the counterweight assembly taken along line 64-64 in FIG.

[0075] Fig.65 is a partial perspective view of an exemplary recessed channel within the body of a testing machine.

[0076] Fig.66 yes Fig.65 Another partial perspective view of the recessed channel is shown.

[0077] Fig.67 is a schematic perspective view of another testing machine having another counterweight assembly.

[0078] Fig.68 It is along Fig.67 67 - 67 of FIG. 5 is a cross-sectional view of the counterweight assembly in a first configuration.

[0079] Fig.69 It is along Fig.67 67 - 67 in FIG. 5 is a cross-sectional view of the counterweight assembly in the second configuration.

[0080] Fig.70 is a schematic perspective view of another testing machine having another counterweight assembly.

[0081] Fig.71 It is in unlocked configuration Fig.70 A partial cross-sectional view of the counterweight assembly is shown.

[0082] Fig.72 Is in locked configuration Fig.70 A partial cross-sectional view of the counterweight assembly is shown.

[0083] Fig.73 It is possible to Fig.70 A cross-sectional view of another counterweight assembly for use with the testing machine is shown.

[0084] Fig.74 is an exploded perspective view of another testing machine having another counterweight assembly.

[0085] Fig.75 is a perspective view of the sole of another golf club head with another weight assembly.

[0086] Fig.76 It is along Fig.75 A cross-sectional view of the counterweight assembly taken along line 76-76 in FIG.

[0087] Fig.77 It is along Fig.75 A cross-sectional view of the counterweight assembly taken along line 77-77 in FIG.

[0088] Fig.78 yes Fig.75 Exploded view of the cover of the counterweight assembly shown.

[0089] Fig.79 yes Fig.75 A perspective view of the weight assembly is shown in a locked configuration.

[0090] Fig.80 yes Fig.75 A perspective view of the counterweight assembly is shown in an unlocked configuration.

[0091] Fig.81 yes Fig.75The counterweight assembly is shown in a perspective view in a counterweight removed configuration.

[0092] Fig.82 is a perspective view of the sole of another golf club head with another weight assembly.

[0093] Fig.83 It is along Fig.82 A cross-sectional view of the counterweight assembly taken along line 83-83 in FIG.

[0094] Fig.84 yes Fig.84 A perspective view of the cover of the counterweight assembly is shown.

[0095] Fig.85 Is in locked configuration Fig.82 A perspective view of the counterweight assembly is shown.

[0096] Fig.86 It is in unlocked configuration Fig.82 A perspective view of the counterweight assembly is shown.

[0097] Fig.87 yes Fig.82 The counterweight assembly is shown in a perspective view in a counterweight removed configuration.

[0098] Fig.88 is a perspective view of the sole of another golf club head with another weight assembly.

[0099] Fig.89 is a perspective view of the sole of another golf club head with another weight assembly, wherein the other weight assembly is in a locked configuration.

[0100] Fig.90 It is in unlocked configuration Fig.89 A perspective view of the counterweight assembly is shown.

[0101] Fig.91 It is in the counterweight adjustment structure Fig.89 A perspective view of the counterweight assembly is shown.

[0102] Fig.92 It is along Fig.91 A cross-sectional view of the counterweight assembly taken along line 92-92 in FIG.

[0103] Fig.93 is a perspective view of the sole of another golf club head with another weight assembly.

[0104] Fig.94 yes Fig.93 A perspective view of the counterweight assembly is shown.

[0105] Fig.95is in a locked configuration and along Fig.93 A cross-sectional view of the counterweight assembly taken along line 93-93 in FIG.

[0106] Fig.96 is in unlocked configuration and along Fig.93 A cross-sectional view of the counterweight assembly taken along line 93-93 in FIG.

[0107] Fig.97 is a bottom view of the sole of a golf club head with another weight assembly.

[0108] Fig.98 is in a locked configuration and along Fig.97 A perspective cross-sectional view of a golf club head taken along line 97-97 in FIG.

[0109] Fig.99 is in unlocked configuration and along Fig.97 Another perspective cross-sectional view of a golf club head taken along line 97-97 in FIG.

[0110] Fig.100 yes Fig.97 Another bottom view of the sole of the golf club head is shown.

[0111] Fig.101 yes Figures 97 to 99 A view of the inside surface of the cover and counterweight assembly of the counterweight is shown.

[0112] Fig.102 yes Fig.101 Side view of the cover and counterweight shown.

[0113] Fig.103 yes Fig.101 Another inside surface view of the covering is shown.

[0114] Fig.104 It is along Fig.103 A cross-sectional view of the covering taken along line 104-104 in FIG.

[0115] Fig.105 is a partially exploded perspective view of an iron-type golf club head having another weight assembly.

[0116] Fig.106 yes Fig.105 Another partially exploded perspective view of a golf club head.

[0117] Fig.107 yes Fig.105 A rear view of a golf club head with the weight assembly in a locked configuration.

[0118] Fig.108 yes Fig.105Another rear view of the golf club head with the weight assembly in an unlocked configuration.

[0119] Fig.109 yes Fig.105 Another partially exploded perspective view of a golf club head.

[0120] Fig.110 There is no counterweight component Fig.105 A top view of a golf club head.

[0121] Fig.111 It is along Fig.110 The line 110a-110a in Fig.105 A toe-to-heel cross-sectional view of a golf club head with a weight assembly in a locked configuration.

[0122] Fig.112 It is along Fig.110 The line 110a-110a in Fig.105 A toe-to-heel cross-sectional view of a golf club head with the weight assembly in an unlocked configuration.

[0123] Fig.113 is a rear view of a golf club head with another weight assembly in a locked configuration.

[0124] Fig.114 is a rear view of a golf club head with another weight assembly.

[0125] Fig.115 yes Fig.114 A top view of a golf club head.

[0126] Fig.116 is a rear view of a golf club head with another weight assembly in a locked configuration.

[0127] Fig.117 The counterweight assembly is in the unlocked configuration. Fig.116 Rear view of a golf club head.

[0128] Fig.118 yes Fig.116 A partially exploded rear view of a golf club head.

[0129] Fig.119 is taken along line 116a-116a when the weight assembly is in the locked configuration Fig.116 A cross-sectional view of a golf club head taken from toe to heel.

[0130] Fig.120 is taken along line 116a-116a when the counterweight assembly is in the unlocked configuration Fig.116 A cross-sectional view of a golf club head taken from toe to heel.

[0131] Fig.121 is a rear view of a golf club head with another weight assembly in a locked configuration.

[0132] Fig.122 The counterweight assembly is in the unlocked configuration. Fig.121 Another rear view of a golf club head.

[0133] Fig.123 The counterweight assembly is in the unlocked configuration. Fig.121 Perspective view of a golf club head.

[0134] Fig.124 yes Fig.121 A partially exploded perspective view of a golf club head.

[0135] Fig.125 is the weight structure along line 121a-121a when it is in the locked configuration Fig.121 A cross-sectional view of a golf club head taken from toe to heel.

[0136] Fig.126 is the weight structure along line 121a-121a when it is in the unlocked configuration Fig.121 A cross-sectional view of a golf club head. DETAILED DESCRIPTION

[0137] The technology described herein contemplates a golf club head, such as a fairway metal club head, a driver club head, or other golf club head, that includes an adjustable weight assembly. By balancing the weight of the golf club head, the flight characteristics of the golf ball can be improved, thereby improving the performance of the golf club. In the examples described herein, the weight assembly enables the CG and / or MOI of the golf club head to be adjusted by selective weight placement to affect the flight characteristics of the golf ball, such as right deviation, left deviation, launch angle, ball spin, and speed. Additionally or alternatively, the weight assembly enables the swing weight of the golf club head to be adjustable (e.g., increasing or decreasing the weight of the club head).

[0138] In an example, the present technology provides a golf club head having a recessed channel defined therein. A slidable weight is at least partially disposed in the channel and secured therein by a cover and a fastener. The cover is configured to indirectly retain the weight in the channel in a manner such that the fastener never engages with the weight. This configuration allows the size, shape, and / or density of the weight to be defined so that the CG and MOI of the golf club head can be finely adjusted. In addition, the cover includes additional features that increase the fixity of the weight in the channel and reduce undesirable clacking or movement during a golf club swing. In addition, the weight assembly described herein allows the weight to be adjusted quickly and easily without completely removing any components from the club head. Thereby reducing the loss or misplacement of components during club head adjustment. In one aspect, the weight engages with the cover so that the two components can move together relative to the golf club head. In addition, the weight is limited from tilting relative to the cover, thereby reducing or preventing the binding of the weight in the channel.

[0139] Figure 1 1 is a perspective view of a sole 102 of a golf club head 100 having an exemplary weight assembly 104. The golf club head 100 is a metal wood type golf club head having a body 106 including a ball striking face 108 located toward the front of the club head 100 and having a lower edge 110 and an upper edge 112 (e.g., at Figure 8 100 ), the lower edge 110 and the upper edge 112 both extend between the toe 114 and the heel 116 of the club head 100. The sole 102 extends from the lower edge 110 on the bottom side of the club head 100, and the crown 118 extends from the upper edge 112 on the top of the club head 100. The sole 102, the ball striking face 108, and the crown 118 are coupled together to define an outer surface 120 of the body 106, wherein an inner cavity 122 (at the interior of the body 106) is formed. Figure 2 The hosel 124 is disposed at the heel 116 and is configured to be coupled to the shaft (not shown). In some examples, the skirt 126 ( Figure 8 102 and 103. The body 106 may also form a portion of the club head 100 and be positioned between the crown 118 and the sole 102. In such an example and for purposes of the present application, the crown 118 may still be considered to be attached or coupled to the sole 102 via the skirt 126. Furthermore, the body 106 may form any type of club head, such as an iron-type club head or a hybrid-type club head, as desired or required.

[0140] In operation, when the club head 100 is placed in the address position, the sole 102 generally provides the lower surface of the club head 100. The club head 100 defines a center of gravity (CG) and a moment of inertia (MOI) that affect the flight characteristics of a golf ball (not shown) when the golf ball is hit with the striking face 108. The weight assembly 104 is connected to the club head 100 so that the CG and / or MOI of the club head 100 can be selectively adjusted as required or needed. In this example, the weight assembly 104 includes a removable weight 128, a cover 130 configured to fix the weight 128 in place, and a fastener 132 for connecting the weight assembly 104 to one or more other parts of the club head 100. In some examples, the weight 128 can be formed of tungsten. In an example, the weight 128 can be between about 2 grams and 15 grams. In some specific examples, the weight 128 can be about 9 grams.

[0141] An elongated recessed channel 134 is formed in the exterior surface 120 of the club head 100. More specifically, the channel 134 is substantially linear and is defined in the sole 102 of the club head 100. In other examples, the channel 134 may be defined at any other location of the body 106 (e.g., the crown 118 or the skirt 126) as desired or needed. The channel 134 is sized and shaped so that it can receive at least a portion of the weight 128 so that the weight 128 can slide therein. In this example, the channel 134 extends substantially linearly in the toe 114-heel 116 direction so that the CG and MOI of the club head 100 can be adjusted (by selectively moving the weight 128) to achieve a fade bias or a draw bias. The channel 134 can be angularly offset from the plane of the ball striking face 108, such as Figure 1 1. In other examples, channel 134 can extend substantially parallel to ball striking face 108. In this example, fastener 132 is positioned proximate the heel side of channel 134. In other examples, fastener 132 can be positioned at any other location relative to channel 134 that enables weight assembly 104 to function as described herein. For example, in reference to Fig.26 Approximately at the midpoint of the channel 134 , or near the toe side of the channel 134 .

[0142] In operation and by using the fastener 132, the cover 130 is coupled to the body 106 and extends at least partially over the channel 134 to selectively secure the weight 128 to the club head 100. In addition, the cover 130 covers at least a portion of the channel 134 to reduce the accumulation of dust and dirt therein. However, the fastener 132 is separate from the weight 128 and only indirectly (e.g., via the cover 130) secures the weight 128 to the club head 100. In an example, the fastener 132 and the cover 130 are adapted to retain the weight 128 in the channel 134 by contacting the cover 130 in a manner such that the fastener 132 never engages the weight 128. As described herein, when the fastener 132 indirectly retains the weight 128 , the fastener 132 is never directly engaged with the weight 128 , but rather another component (eg, the cover 130 ) is directly engaged with the weight 128 to secure to the club head 100 .

[0143] The cover 130 can be loosened or completely removed from the club head 100 via the fastener 132 to allow the weight 128 to slide within the channel 134 and selectively adjust the CG and MOI as desired or needed. Because the weight 128 is selectively movable, the weight assembly 104 (e.g., the fastener 132, the weight 128, and the cover 130) enables the weight 128 to move while also securing the weight 128 to one or more portions of the club head 100, thereby reducing or preventing undesirable movement (e.g., during a club swing). By separating the fastener 132 from the weight 128, the size, shape, and / or density of the weight 128 can be configured so that the CG and MOI of the club head 100 can be more finely adjusted, thereby improving the performance of the golf club head 100. The weight assembly 104 is further described below.

[0144] Figure 2 It is along Figure 1 FIG. 1 is a cross-sectional view of the golf club head 100 taken along line 2 - 2 in FIG. 1 , showing the weight assembly 104 in the locked configuration 136 . Figure 3 It is along Figure 2 A cross-sectional view of the weight assembly 104 taken along line 3-3 in FIG. Figure 2 and Figure 3 , when the weight assembly 104 is in the locked configuration 136, the cover 130 is disposed within the channel 134 and the weight 128 is secured within the channel 134, thereby restricting movement. In this example, to lock the cover 130 to the body 106, the fastener 132 can be a threaded bolt that is threadedly engaged with a nut 138 positioned within the heel end of the channel 134. In some examples, the nut 138 can be integrally formed within the body 106.

[0145] When the cover 130 is in the locked configuration 136, the outer surface 140 of the cover 130 is substantially aligned (e.g., flush) with the outer surface 120 of the body 106. In addition, the fastener 132 defines a fastener axis 142. In this example, the fastener axis 142 is disposed at an angle 144 relative to a plane 146 that is perpendicular to the outer surface 140 of the cover 130 proximate the fastener 132. The angle 144 defines an orientation in which the cover 130 can move relative to the body 106. The angle 144 can be between about 0° (e.g., aligned with the plane 146) and about 88°. In an example, the angle 144 can be between about 20° and 50°. In one example, the angle 144 can be about 45°.

[0146] In this example, only a single fastener 132 is used to couple the cover 130 to the body 106, and the fastener 132 is positioned at the heel end of the weight assembly 104. Thus, in order to couple the toe end of the cover 130 to the body 106, the cover 130 may include one or more protrusions 148 extending from the toe end. The protrusions 148 are sized and shaped to be received in one or more corresponding cavities 150 defined at the toe end of the channel 134. When the weight assembly 104 is in the locked configuration 136, the protrusions 148 are at least partially received in the cavities 150 and engaged therewith. By engaging the cover 130 to the body 106 at a location opposite the fastener 132, when the weight 128 is positioned away from the fastener 132, the cover 130 is still able to secure the weight 128 within the channel 134 and reduce or prevent movement of the weight 128 in the locked configuration 136. In this example, protrusion 148 extends in the toe-heel direction of cover 130 and includes at least one inclined surface 152 that frictionally engages with a corresponding at least one inclined surface 154 of chamber 150. In some examples, inclined surfaces 152, 154 can be substantially parallel to fastener axis 142. In other examples, inclined surfaces 152, 154 can be oriented at a different angle to fastener axis 142 (e.g., a steeper or shallower angle). Additionally or alternatively, protrusion 148 and chamber 150 can extend substantially orthogonally to the toe-heel direction (e.g., at a substantially orthogonal angle to the toe-heel direction). Figure 2 on and off the page).

[0147] The cover 130 may also engage the body 106 at one or more intermediate locations between the fastener 132 and the opposite end. The standoff 156 may protrude into the channel 134 at a location between the toe end and the heel end (e.g., near the midpoint of the channel 134). The standoff 156 is sized and shaped so that it can be received in a corresponding recess 158 defined in the cover 130. When the weight assembly 104 is in the locked configuration 136, the standoff 156 is at least partially received in and engaged with the recess 158. This engagement of the cover 130 with the body 106 at a location distal from the fastener 132 also secures the weight 128 within the channel 134 in the locked configuration 136 and reduces or prevents movement of the weight 128. In an example, the standoff 156 extends in the toe-heel direction of the channel 134 and includes at least one inclined surface 160 that frictionally engages with a corresponding at least one inclined surface 162 of the recess 158. In some examples, the inclined surfaces 160, 162 may be substantially parallel to the fastener axis 142. In other examples, the inclined surfaces 160, 162 may extend at an angle of approximately 3° to 88° relative to the bottom of the channel 134. In one example, the inclined surfaces 160, 162 may extend at an angle of approximately 30° relative to the bottom of the channel 134.

[0148] The cam 164 may also protrude into the channel 134 at a location between the toe end and the heel end (e.g., between the seat 156 and the chamber 150). The cam 164 is sized and shaped so that it can be received within a corresponding cutout 166 defined in the cover 130. When the weight assembly 104 is in the locked configuration 136, the cam 164 is at least partially received within the cutout 166. Figure 4 The cam 164 and the cutout 166 are further described.

[0149] In this example, the cover 130 is generally L-shaped with a long leg 168 and a short leg 170. In the locked configuration 136, the long leg 168 forms the outer surface 140 and the short leg 170 extends within the channel 134. The channel 134 is formed by two opposing side walls 172, 174 and a bottom track 176 offset from the outer surface 120 of the body 106. The long leg 168 of the cover 130 is opposite the track 176 of the channel 134, and the short leg 170 of the cover 130 is adjacent to one of the side walls 172. The standoff 156 and the cam 164 can protrude from the side walls 172 of the channel 134, and corresponding notches 158 and cutouts 166 can be defined in the short legs 170 of the cover 130. When the weight 128 is secured within the channel 134 and in the locked configuration 136, the weight 128 is compressed between the cover 130 and one or more walls (e.g., the sidewalls 174 and / or the track 176) of the channel 134. In this manner, the weight 128 is frictionally secured to one or more portions of the club head 100 by the weight assembly 104.

[0150] In addition, the counterweight 128 can be slidably coupled to the cover 130. The long leg 168 of the cover 130 can include a flange 178 extending therefrom. The flange 178 is sized and shaped so that it can be at least partially received within a corresponding recess 180 defined in the counterweight 128. In the locked configuration 136, a portion of the counterweight 128 is not covered by the cover 130 and is exposed within the channel 134, such that the portion forms a portion of the outer surface 120 of the body 106. This allows the position of the counterweight 128 within the channel 134 to be easily determined by visual inspection.

[0151] Figure 4 It is along Figure 1 2-2 of the cross-sectional view of the club head 100, which shows the weight assembly 104 in the unlocked configuration 182. Figure 5 It is along Figure 4 A cross-sectional view of the weight assembly 104 taken along line 5-5 in FIG. Figure 4 and Figure 5 , when the weight assembly 104 is in the unlocked configuration 182, at least a portion of the cover 130 is lifted and out of the channel 134, allowing the weight 128 to selectively slide within the channel 134 (e.g., in the toe-heel direction 184). In this example, the fastener 132 can be coupled to the cover 130 (e.g., using a locking washer 186 (in Fig.16 )), so that when the fastener 132 is rotated, the cover 130 is moved along the fastener axis 142 (in Figure 2The cover 130 and fastener 132 may be completely removed from the body 106, thereby completely removing the counterweight 128 from the passage 134, as desired or required. However, in the example, the counterweight assembly 104 is in the locked configuration 136 (in Figure 2 and 3 182) and the unlocked configuration 182 does not require the weight assembly 104 to be separated from the body 106. Thus, in the unlocked configuration 182, the cover 130 can remain coupled to the body 106, making it less likely that these components will be lost or misplaced. In some examples, as desired or required, the fastener 132 and / or the nut 138 may include a hard stop (not shown) that prevents the fastener 132 from being completely de-threaded from the club head 100.

[0152] Since only a single fastener 132 is used to couple the cover 130 to the body 106 and the fastener 132 is positioned at the heel end of the weight assembly 104, the cam 164 can be used to assist in lifting the toe end of the cover 130 from the channel 134 in the unlocked configuration 182. This allows the weight 130 to more easily slide to a position away from the fastener 132. In this example, the cam 164 extends in the toe-heel direction of the channel 134 and includes at least one cam surface 188 that slidingly engages a corresponding cam surface 190 of the cutout 166. As the cover 130 moves from the locked configuration 136, in which the cam 164 is received within the cutout 166, toward the unlocked configuration 182, the cam surfaces 188, 190 slide relative to each other to lift the toe end of the cover 130. In some examples, when the weight assembly 104 is in the unlocked configuration 182, a portion of the cover 130 can be supported on the cam 164. The cam surfaces 188 , 190 may be substantially parallel to the fastener axis 142 .

[0153] Additionally, in the unlocked configuration 182, the notch 158 may be lifted away from the seat 156 to disengage the inclined surfaces 160, 162 (in the unlocked configuration 182). Figure 2 156). In the unlocked configuration 182, the notch 158 may be partially or completely lifted from the seat 156. The protrusion 148 may also be lifted away from the chamber 150. However, the protrusion 148 may remain at least partially engaged with the chamber 150 so that in the unlocked configuration 182, the counterweight 128 cannot slide out of the toe end of the cover 130 and remain within the channel 134. In addition, because the counterweight 128 is engaged with the cover 130 (e.g., the flange 178 and the groove 180), the counterweight 128 moves between the locked configuration 136 and the unlocked configuration 182 with the cover 130. This makes it easier for the counterweight 128 to slide in the unlocked configuration 182.

[0154] In some examples, one or more of the counterweight 128, the cover 130, and the channel 134 may include complementary features (e.g., corresponding detents 192 on the cover 130 and notches (not shown) on the counterweight 128) that index the position of the counterweight 128 to the channel 134 and / or the cover 130. These complementary indexing features may provide tactile and / or audible feedback when the counterweight 128 is moved. Additionally, the complementary indexing features may also provide increased resistance to relative movement between the counterweight 128 and the channel 134 and / or the cover 130 when the counterweight assembly 104 is in the locked configuration 136.

[0155] Figure 6 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 200 . Figure 7 It is along Figure 6 A cross-sectional view of the weight assembly 200 is shown taken along line 7-7 in FIG. Certain components are described above and therefore need not be described further. Figure 6 and Figure 7 , the weight assembly 200 includes a recessed channel 202 defined within the sole 102 of the body 106 of the club head 100, but the channel 202 extends substantially straight in the front-to-back direction so that the CG and MOI of the club head 100 can be adjusted for launch angle bias. Figure 6 2, the channel 202 can extend substantially orthogonally to the ball striking face 108. In other examples, the channel 202 can extend at an acute angle or an obtuse angle relative to the ball striking face 108. The weight assembly 200 also includes a slidable weight 204, a cover 206, and a fastener 208. In this example, the fastener 208 is positioned near the rear of the channel 202 and opposite the ball striking face 108. In other examples, the fastener 208 can be positioned at any other position relative to the channel 202 that enables the weight assembly 200 to function as described herein. For example, at approximately the midpoint of the channel 202 or near the ball striking face 108 side of the channel 202.

[0156] In this example, the channel 202 is formed by two opposing side walls (i.e., the cover side wall 210 and the undercut side wall 212) and a bottom rail 214 that is offset from the outer surface 120 of the body 106. A partial wall 216 also extends from the bottom rail 214. Here, the cover 206 is positioned adjacent to the cover side wall 210 and includes an angled surface 218. Thus, when the weight assembly 200 is in a locked configuration (e.g., Figure 7), the cover 206 generates a compressive force 220 acting in a downward and lateral direction along the angled surface 218 to secure the weight 204 between the cover 206 and the undercut sidewall 212. Thus, the weight 204 is frictionally secured by the weight assembly 200 to one or more portions of the body 206 of the club head 100 and at least partially beneath the angled surface 218 and the undercut sidewall 212. The weight 204 is at least partially trapezoidal in cross-sectional shape, so that the undercut of the sidewall 212 and the cover 206 help retain the weight 204 within the channel 202. In addition, the cover 206 engages the partial wall 216, so that the portion of the cover 206 away from the fastener 208 is limited from moving (e.g., bending or flexing) within the channel 202 toward the undercut sidewall 212. In addition, the partial wall 216 is substantially parallel to the fastener axis (not shown) of the fastener 208 so that the cover 206 is guided between the locked configuration and the unlocked configuration. In some examples, the weight assembly 200 may include a seat / recess interface as described above to further engage the cover 206 within the channel 202 and increase the fixation of the weight 204 to one or more portions of the club head 100.

[0157] Figure 8 3 is a perspective view of a golf club head 100 having another weight assembly 300. Certain components are described above and therefore need not be described further. In this example, the club head 100 includes a skirt 126 positioned between the crown 118 and the sole 102 opposite the ball striking face 108. The weight assembly 300 includes a recessed channel 302 defined within the skirt 126 of the body 106 of the club head 100 and extending along the rear perimeter of the club head 100 such that the channel 302 has a curved shape. The weight assembly 300 also includes a slidable weight 304, a cover 306, and a fastener 308. In this example, the fastener 308 is coupled to the heel 116 side of the body 106. In other examples, the fastener 308 can be coupled to the toe 114 side of the body 106 as desired or required. The weight assembly 300 may include one or more of the weight assembly features described herein to enable the weight 304 to be secured in a locked configuration (eg, Figure 8 ), while adjusting the CG and MOI of the club head 100 for the right-left bias tendency.

[0158] Fig. 9 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 400 . Fig.10 yes Fig. 9 A top view of the golf club head 100 is shown with a portion of the crown 118 removed. Certain components are described above and therefore need not be described further. Fig. 9 and Fig.10, the weight assembly 400 includes a recessed channel 402 defined within the sole 102 of the body 106 of the club head 100, the recessed channel 402 extending substantially linearly in the toe 114-heel 116 direction. The weight assembly 400 also includes a slidable weight 404, a cover 406, and a fastener 408. The channel 402 includes a bottom track 410 on which the weight 404 can slide. In this example, the fastener 408 and the nut 412 coupled to the fastener 408 are offset from the track 410 and positioned toward the rear of the body 106. By offsetting the fastener 408 from the track 410, the length of the track 410 can be extended in the toe-heel direction, thereby allowing the weight 404 to be positioned at more locations on the sole 102. In other examples, the fastener 408 can be offset from the track 410 and positioned toward the front of the body 106 and the ball striking face 108 as desired or required.

[0159] In this example, one or more support ribs 414 may extend from the channel 402 and within the interior cavity 122 of the body 106. The support ribs 414 are substantially orthogonal to the length of the channel 402. The support ribs 414 provide structural strength to the channel 402 so that the channel 402 resists deformation when the cover 406 compresses the weight 404 in the channel 402. In some examples, the support ribs 414 may extend within the interior cavity 122 the entire distance between the sole 102 and the crown 118.

[0160] Fig.11 It is along Fig. 9 A cross-sectional view of the counterweight assembly 400 taken along line 11-11 in FIG. Fig.12 It is along Fig. 9 A cross-sectional view of the weight assembly 400 is shown taken along line 12-12 in FIG. Certain components are described above and therefore need not be described further. Fig.11 and Fig.12 , weight assembly 400 is shown in a locked configuration, whereby weight 404 is secured within channel 402. In this example, weight 404 includes an elastomeric material 416 (e.g., a rubber-based material) that engages channel 402 and / or cover 406 and further increases the securement of weight 404 in the locked configuration. Additionally, elastomeric material 416 reduces rattling of weight 404 within channel 402 during a swing of the club head.

[0161] In this example, the channel 402 is formed by two opposing side walls 418, 420 and the track 410. One side wall 420 may include an elongated fin 422 extending into the channel 402. The weight 404 is sized and shaped to be at least partially received within the channel 402 and includes a bottom surface 424 positioned adjacent the track 410 and a slot 426 that engages the fin 422. Additionally, the weight 404 includes a groove 428 that engages the flange 430 of the cover 406 at a location opposite the slot 426. The elastomeric material 416 may be coupled to the weight 404 such that the material 416 extends from the bottom surface 424 and also extends into the slot 426. In one example, the elastomeric material 416 may be an integral part that extends through one or more holes in the weight 404. In other examples, the elastomeric material 416 may be adhered to one or more outer surfaces of the weight 404. In still other examples, at least a portion of the elastomeric material 416 may form the weight 404 itself.

[0162] In operation, when the cover 406 is in the locked configuration, the flange 430 engages with the groove 428 of the counterweight 404 and compresses the counterweight 404 into the channel 402. In this way, the elastomeric material 416 can engage with the track 410 and the fin 422 of the channel 402. By engaging the elastomeric material 416 in more than one position, the fixation of the counterweight 404 within the channel 402 is increased. This reduces undesired movement and rattling of the counterweight 404 within the channel 402. In some examples, the elastomeric material 416 can deform when compressed into the channel 402. Since the cover 406 only engages with a portion of the counterweight 404, when the cover 406 is lifted 432 for the unlocked configuration (not shown), the counterweight 404 can rotate 434 within the channel 402 so that the elastomeric material 416 can disengage from the track 410 and the fin 422. Because the elastomeric material 416 is at least partially located away from the channel surface, this rotational movement 434 makes it easier for the weight 404 to slide within the channel 402 when in the unlocked configuration. In some examples, the elastomeric material 416 extending from the bottom surface 424 may only be adjacent to the groove 428 to increase the rotational movement 434 of the weight 404.

[0163] The cover 406 is substantially L-shaped in cross section (see Fig.12), and receiving at least a portion of the counterweight 404 therein. The cover includes a first leg 436 having a flange 430 and a second leg 438 adjacent the sidewall 418 of the channel 402. The flange 430 can be substantially parallel to the second leg 438 so as to increase the structural rigidity of the cover 406 in the length direction. The second leg 438 can extend at least partially within the recess 440 of the track 410 so as to reduce the bending of the cover 406 when in the locked structure. In addition, in this example, the protrusion 442 of the cover 406 can be substantially cylindrical in shape. The protrusion 442 is received in a corresponding cylindrical cavity 444. The structure of the protrusion 442 and the cavity 444 increases the engagement of the cover 406 with the body 106 in the locked structure (such as Fig.11 402). In some examples, the protrusion axis 446 of the protrusion 442 can be substantially parallel to the fastener axis 448. This orientation guides the movement of the cover 406 between the locked configuration and the unlocked configuration. In some examples, the protrusion 442 can include a tapered nose. In this example, the counterweight 404 and the channel 402 can include a complementary feature 450 that indexes the position of the counterweight 404 to the channel 402.

[0164] Fig.13 is a cross-sectional view of another counterweight assembly 500. Certain components are described above and therefore need not be described further. Figures 9 to 12 , in which the weight assembly 500 includes a recessed channel 502 defined within the body 106 of the club head. The weight assembly 500 also includes a slidable weight 504 and a cover 506. The cover 506 is shown in a locked configuration, and the slot 508 of the weight 504 engages the fin 510 of the channel 502. However, in this example, the bottom surface 512 of the weight 504 is positioned directly against the track 514 of the channel 502. Additionally, in this example, the bottom surface 512 of the weight 504 includes a hollow portion 516. When the weight assembly 500 is in an unlocked configuration (not shown), the hollow portion 516 reduces frictional sliding forces on the weight 504. The hollow portion 516 also enables the size and shape of the weight 504 to be formed while maintaining the mass and / or density of the weight 504 as required or desired. In some examples, an elastomeric material (not shown) may be at least partially disposed within hollow portion 516 .

[0165] Fig.146 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 600. Certain components are described above and therefore need not be described further. The weight assembly 600 includes a recessed channel 602 defined within the sole 102 of the body 106 of the club head 100. The channel 602 has a substantially curved shape in the toe 114-heel 116 direction so that the CG and MOI of the club head 100 can be adjusted for right-left bias. In some examples, the curve of the channel 602 matches the rear perimeter of the body 106 where the sole 102 and the crown 118 are coupled together. The weight assembly 600 also includes a slidable weight 604, a cover 606, and a fastener 608.

[0166] In this example, the fastener 608 is positioned in the concave area of ​​the curved channel 602 and toward the ball striking face 108 of the body 106. This location allows the weight 604 to be positioned adjacent to the rear perimeter of the body 106 and increases the adjustability of the CG and MOI of the club head 100 compared to positioning the fastener 608 in the convex area of ​​the curved channel 602 and the weight 604 closer to the ball striking face 108. In addition, the weight 604 can be completely slid from the toe 114 side to the heel 116 side and positioned anywhere in the channel 602, even adjacent to the fastener 608. In other examples, the fastener 608 can be positioned in the convex area of ​​the curved channel 602 as desired or required. The fastener 608 is also positioned at approximately the midpoint of the channel 602. In other examples, the fastener 608 may be offset from the midpoint of the channel 602 , or two or more fasteners 608 may be used to couple the cover 606 to the body 106 (eg, at each end of the channel 602 ).

[0167] Fig.15 It is along Fig.14 15 - 15 of FIG. 1 is a cross-sectional view of the club head 100 taken along line 15 - 15 of FIG. 1 , showing the weight assembly 600 . Fig.16 It is along Fig.14 A cross-sectional view of the counterweight assembly 600 taken along line 16-16 in FIG.

[0168] Fig.17 It is along Fig.14 A cross-sectional view of the weight assembly 600 is shown taken along line 17-17 in FIG. Certain components are described above and therefore need not be described further. Figures 15 to 17, the weight assembly 600 is shown in a locked configuration, and the weight 604 includes a bottom surface 610 and a recess 612. A protrusion 614 is disposed adjacent to the recess 612. In addition, the weight 604 includes an elastomeric material 614. In this example, the elastomeric material 614 is coupled to the weight 604 and extends from the bottom surface 610 and also extends into the recess 612. The elastomeric material 614 is oversized relative to the channel 602 (e.g., an overlap of 0.1 mm to 1.0 mm) such that the material 614 deforms while being compressed into the channel 602. In other examples, the elastomeric material 614 can be adhered to an outer surface of the weight 604. In still other examples, the elastomeric material 614 can at least partially form the weight 604 itself.

[0169] The cover 606 is substantially C-shaped, having a flange 616 that engages the groove 612 of the counterweight 604. In addition, the cover 606 includes a top leg 618 and a side leg 620 opposite the flange 616. The thickness of the top leg 618 is greater than the thickness of the flange 616 and the side leg 620, thereby increasing the structural rigidity of the cover 606 in the length direction. The fastener 608 is coupled to the cover 606 by a locking washer 186, which enables the fastener 608 to rotate relative to the cover 606 while allowing the cover 606 to move along the fastener axis 622 to raise and lower the cover 606 relative to the channel 602.

[0170] In operation, when the cover 606 is in the locked configuration, the flange 616 of the cover 606 engages within the groove 612 of the weight 604. This compresses the weight 604 between the cover 606 and the bottom track 624 of the channel 602. In the locked configuration, the elastomeric material 614 engages with both the cover 606 and the channel 602 to increase the securement of the weight 604 to one or more portions of the club head 100. In some examples, a plurality of grooves 626 are defined within the track 624, into which the elastomeric material 614 deforms to facilitate securing the weight 604 within the channel 602. Additionally, the protrusion 614 of the weight 604 may be positioned proximate to the exterior surface 120 of the body 106 so that the position of the weight 604 may be visible. When the weight assembly 600 is in an unlocked configuration (not shown), the cover 606 is at least partially lifted from the channel 602 so that the weight 604 can selectively slide therein, for example, via the protrusion 614 .

[0171] Each end of the cover 606 can include a substantially cylindrical protrusion 628 that is received within a corresponding cylindrical cavity 630 of the channel 602. The protrusion 628 extends along a protrusion axis 632 that is substantially parallel to the fastener axis 622. This orientation guides movement of the cover 606 between the locked configuration and the unlocked configuration. In some examples, the protrusion 628 can include a tapered nose. In addition, as shown in FIG. Fig.15 and 16 As shown, the chamber 630 can be open to the interior cavity 122 of the body 106. In other examples, the chamber 630 can be closed relative to the interior cavity 122. One or more support ribs 634 can also extend from the track 624 and into the interior cavity 122 as desired or required.

[0172] Fig.18 is an exploded perspective view of a golf club head 100 having another weight assembly 700. Certain components are described above and therefore need not be described further. Figures 14 to 17 , in which the weight assembly 700 includes a recessed channel 702 defined within the body 106 of the club head 100, and the channel 702 has a substantially curved shape in the toe 114-heel 116 direction. In some examples, the curve of the channel 702 matches the rear periphery of the body 106 where the sole 102 and the crown 118 are coupled together. The weight assembly 700 also includes a slidable weight 704, a cover 706, and a fastener 708. At each end of the cover 706, a protrusion 710 can extend for engagement within the channel 702.

[0173] Fig.19 It is along Fig.18 19-19 in the cross-sectional view of the weight assembly 700. Certain components are described above and therefore need not be described further. Fig.19 704 is shown in a locked configuration, and a bottom surface 712 of the counterweight 704 is positioned to be positioned directly against a track 714 of the channel 702. Additionally, in this example, the bottom surface 712 of the counterweight 704 includes a hollow portion 716. The hollow portion 716 reduces the frictional sliding force on the counterweight 704 when the counterweight assembly 700 is in an unlocked configuration (not shown). The hollow portion 716 also enables the size and shape of the counterweight 704 to be formed while maintaining the mass and / or density of the counterweight 704 as required or desired. In some examples, an elastomeric material (not shown) can be at least partially disposed within the hollow portion 716.

[0174] Additionally, cover 706 includes an angled surface 718 that abuts weight 704. Thus, when weight assembly 700 is in a locked configuration (e.g., Fig.19), the cover 706 generates a compressive force 720 acting in a downward and lateral direction along the angled surface 718 to secure the weight 704 between the cover 706 and the undercut sidewall 722 of the channel 702. In this way, the weight 704 is frictionally secured to one or more portions of the club head 100 by the weight assembly 700.

[0175] Fig. 20 is a partial cutaway perspective view of another counterweight assembly 800 . Fig.21 is another cross-sectional view of the counterweight assembly 800. Certain components are described above and therefore need not be described further. Fig. 20 and Fig.21 , these cross-sectional views are substantially along the front-to-back direction of the golf club head and are similar to those described above with reference to Fig.16 and Fig.17 106. The weight assembly 800 includes a recessed channel 802 defined within the body 106. The weight assembly 800 also includes a slidable weight (not shown), a cover 804, and a fastener 806. In this example, the channel 802 is defined by a bottom track 808 and two opposing side walls 810, 812. The bottom track 808 includes an elastomeric material 814 coupled thereto and extending at least partially into the channel 802. The elastomeric material 814 engages with the weight and further increases the fixation of the weight in the locked configuration within the channel 802. In addition, the elastomeric material 814 reduces the rattle of the weight during the swing of the club head. In addition or alternatively, the elastomeric material 814 can be coupled to one or more of the side walls 810, 812 as desired or required. In still other examples, the elastomeric material 814 can be coupled to the cover 804.

[0176] In this example, the elastomeric material 814 extends along the longitudinal length of the channel 802. At each end 816 of the elastomeric material 814, a portion of the material can extend into an undercut region 818 within the channel 802, thereby securing the elastomeric material 814 within the channel 802. In other examples, the elastomeric material 814 can be adhered within the channel 802 or the cover 804, as desired or required. The ends 816 of the elastomeric material 814 can be offset 820 from the protrusions 822 of the cover 804, such that the elastomeric material 814 does not interfere with the movement of the cover 804 between the locked configuration and the unlocked configuration as described herein.

[0177] Fig. 22 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 900 in a locked configuration. Fig.23 It is along Fig. 22A cross-sectional view of the weight assembly 900 is shown taken along line 23-23 in FIG. Certain components are described above and therefore need not be described further. Fig. 22 and Fig.23 , weight assembly 900 is shown in a locked configuration and includes a recessed channel 902 defined within sole 102 of body 106 of club head 100. Channel 902 has a substantially curved shape in the toe 114-heel 116 direction so that the CG and MOI of club head 100 can be adjusted for right-left bias. In some examples, the curvature of channel 902 matches the rear perimeter of body 106 where sole 102 and crown 118 are coupled together. Weight assembly 900 also includes toe-side slidable weight 904, heel-side slidable weight 906, toe-side cover 908, heel-side cover 910, and fastener 912.

[0178] In this example, fastener 912 is disposed within channel 902 and substantially divides weight assembly 900 into two halves. By positioning fastener 912 within channel 902, the size of weight assembly 900 on club head 100 is reduced. Additionally, the mass of fastener 912 is moved further rearward from ball striking face 108 than in the examples described above. Fig. 22 As shown, the weights 904, 906 extend from the inner convex side of the coverings 908, 910. In other examples, the weights 904, 906 can extend from the outer concave side of the coverings 908, 910 as desired or needed. In this example, two slidable weights 904, 906 are described because the fastener 912 prevents the weight from sliding completely from the toe side of the channel 902 to the head side and back. In some examples, the weight assembly 900 can include only one slidable weight, and the fastener 912 and the coverings 908, 910 are configured to allow the weight to pass between the toe 114 side and the heel 116 side. In other examples, the weight assembly 900 can include only one slidable weight that requires the assembly to be completely disassembled in order to move the weight from the toe side to the head side and back. In other examples, the weights 904, 906 can be completely removed from the channel 902 as desired or needed.

[0179] One end of each cover 908, 910 engages with the channel 902, for example, by a protrusion / channel interface as described herein, while the other opposite end of each cover 908, 910 engages with a fastener 912. In this example, the fastener 912 includes a washer 914 disposed below the head. The washer 914 is a substantially cylindrical flange extending from a threaded rod that engages with two corresponding grooves 916 in the covers 908, 910. When the weight assembly 900 is in a locked configuration, the covers 908, 910 are disposed in the channel 902 and are fixed in place by the fastener 912 via the grooves 916, so that the weights 904, 906 cannot slide in the channel 902 and are locked in place. In addition, the covers 908, 910 are flush with the outer surface 120 of the body 106. In some examples, the portion of the covers 908 , 910 defining the groove 916 may extend all the way to the bottom rail 918 of the channel 902 , thereby reducing or preventing over-tightening of the fastener 912 .

[0180] Fig.24 is a perspective view of the sole 102 of the golf club head 100 with the weight assembly 900 shown in an unlocked configuration. Fig.25 It is along Fig.24 A cross-sectional view of the weight assembly 900 is shown taken along line 25-25 in FIG. Certain components are described above and therefore need not be described further. Fig.24 and Fig.25 , the weight assembly 900 is shown in an unlocked configuration. Fig. 22 and Fig.23 902 ), the fastener 912 is rotated so as to be at least partially lifted from the channel 902. This movement of the fastener 912 also at least partially lifts the ends of the covers 908, 910 engaged with the washers 914 from the channel 902, thereby enabling the weights 904, 906 to slide within the channel 902. In some examples, the weights 904, 906 can engage with the respective covers 908, 910 so as to be lifted away from the track 918 to facilitate movement.

[0181] In some examples, the covering objects 908, 910 and fasteners 912 may be completely removed from the body 106 as desired or required in order to completely remove the weights 904, 906 from the channel 902. However, moving the weight assembly 900 between the locked configuration and the unlocked configuration does not require separating the weight assembly 900 from the body 106. As such, in the unlocked configuration, the covering objects 908, 910 remain coupled to the body 106, making it less likely that the components will be lost or misplaced.

[0182] In this example, when the covers 908, 910 are in the unlocked configuration, the ends of the covers 908, 910 opposite the fasteners 912 and engaged with the channel 902 (e.g., with a protrusion / channel interface) remain engaged with the channel 902 and can form a pivot point about which the covers 908, 910 rotate. In other examples, as described herein, the ends of the covers 908, 910 opposite the fasteners 912 can be at least partially lifted from the channel 902. For example, via a cam and notch interface as described above.

[0183] Fig.26 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1000 . Fig. 27 It is along Fig.26 27-27 in the cross-sectional view of the weight assembly 1000. Certain components are described above and therefore do not require further description. Fig.26 and Fig. 27 , weight assembly 1000 includes a substantially linear recessed channel 1002 defined within sole 102. Weight assembly 1000 also includes a slidable weight 1004, a cover 1006, and a fastener 1008. In this example, fastener 1008 may be positioned at approximately the midpoint of channel 1002 and offset toward the rear of club head 100. By positioning fastener 1008 at the midpoint position, the distance between fastener 1008 and the distal end(s) of cover 1006 is reduced, thereby increasing engagement between cover 1006 and channel 1002 to secure weight 1004.

[0184] Similar to the above reference Figure 6 and Figure 7 In the illustrated example, channel 1002 is formed by two opposing side walls (i.e., cover side wall 1010 and undercut side wall 1012) and a bottom rail 1014 that is offset from the outer surface 120 of body 106. Partial wall 1016 also extends from bottom rail 1014. Cover 1006 is positioned adjacent cover side wall 1010 and includes angled surface 1018. Thus, when weight assembly 1000 is in a locked configuration (e.g., Fig. 27), the cover 1006 generates a compressive force acting in a downward and lateral direction along the angled surface 1018 to secure the counterweight 1004 between the cover 1006 and the undercut sidewall 1012. Thus, the counterweight 1004 is frictionally secured by the counterweight assembly 1000 and at least partially beneath the angled surface 1018 and the undercut sidewall 1012. Additionally, the cover 1006 is fully engaged with the partial wall 1016 via the groove 1020, such that movement (e.g., bending or flexing) of the portion of the cover 1006 distal to the fastener 1008 within the channel 1002 toward the undercut sidewall 1012 is restricted. Furthermore, the partial wall 1016 is substantially parallel to a fastener axis (not shown) of the fastener 1008, such that the cover 1006 guides movement between the locked configuration and the unlocked configuration.

[0185] Fig.28 is an exploded perspective view of the sole 102 of the golf club head 100 with another weight assembly 1100 . Fig.29 is a cross-sectional view of the counterweight assembly 1100. Certain components are described above and therefore need not be described further. Fig.28 and Fig.29 , weight assembly 1100 includes a substantially linear recessed channel 1102 defined within sole 102. Weight assembly 1100 also includes a slidable weight 1104, a cover assembly 1106, and a fastener 1108. In this example, fastener 1108 may be positioned approximately midway through channel 1102 and offset toward the rear of club head 100. As described above, when cover assembly 1106 is in a locked configuration, cover assembly 1106 is coupled to body 106 such that weight 1104 is secured within weight assembly 1100 without movement or rattling. In this example, cover assembly 1106 is a four-piece assembly including fastener member 1110, two opposing longitudinal members 1112, and transverse member 1114.

[0186] When the cover assembly 1106 is moved toward the locked configuration (e.g., Fig.29), fastener 1108 is fastened to body 106. Fastener 1108 engages with fastener member 1110 and moves fastener member 1110 along a fastener axis (not shown) and into channel 102. Fastener member 1110 has a tapered surface that engages with two longitudinal members 1112 so that when fastener member 1110 is pulled down into channel 1102, longitudinal members 1112 are also pulled down into channel 1102 and generate compressive force 1116 along angled surface 1118. Compressive force 1116 acts on cross member 1114 in a downward and lateral direction to position cross member 1114 within channel 1102 and compress weight 1104 between cross member 1114 and sidewall 1120 of the channel.

[0187] Additionally, to reduce or prevent the weight assembly 1100 from being pulled out of the body 106, the cross member 1114 can engage with the undercut 1122 of the channel 1102. The compressive force 1116 from the longitudinal member 1112 locks the cross member against the undercut 1122 to prevent movement. Additionally or alternatively, a portion of the weight 1104 can engage with the sidewall 1120 of the channel 1102 to reduce the weight assembly 1100 from being pulled out of the body 106. Additionally, the fastener member 1110 also pushes the longitudinal member 1112 away from the fastener 1108 (e.g., arrow 1124) so ​​that the end 1126 of the member 1112 can engage with the corresponding cavity 1128 in the channel 1102 and also reduce the weight assembly 1100 from being pulled out of the body 106.

[0188] Fig.30 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1200 . Fig.31 It is along Fig.30 A cross-sectional view of the weight assembly 1200 is shown taken along line 31-31 in FIG. Certain components are described above and therefore need not be described further. Fig.30 and Fig.31 , the weight assembly 1200 is shown in an unlocked configuration and includes a recessed channel 1202, a slidable weight 1204, a cover 1206, and a fastener 1208. The structure, size, shape, and orientation of the channel 1202, the weight 1204, and the fastener 1208 can be similar to any of the examples described above. However, in this example, the width 1210 of the cover 1206 extends toward the ball striking face 108, so that the cover 1206 forms a larger portion of the sole 102 and does not cover only a portion of the channel 1202.

[0189] In some examples, the covering 1206 may be formed to be greater than or equal to 75% of the surface area of ​​the base 102. In other examples, the covering 1206 may be formed to be greater than or equal to 50% of the surface area of ​​the base 102. In still other examples, the covering 1206 may be formed to be greater than or equal to 25% of the surface area of ​​the base 102. In still other examples, the covering 1206 may be between about 10% and 90% of the surface area of ​​the base 102. In other examples, the covering 1206 may be between about 25% and 75% of the surface area of ​​the base 102.

[0190] By enlarging the cover 1206 of the weight assembly 1200, the golf club head structure that forms the sole 102 of the body 106 can be reduced. In some examples, the cover 1206 can be made of a material (e.g., a composite material, a plastic, etc.) that is lighter in weight than the material from which the body 106 is made. In this way, the weight saved by the construction of the sole structure can be used at other locations on the club head 100 as desired or needed, and the CG and MOI of the club head 100 can also be adjusted to improve the flight characteristics of the golf ball. In some examples, the weight saved by the sole structure can be incorporated back into the slidable weight 1204. For example, the cover 1206 can reduce the weight of the sole structure by 11 grams or more, some or all of which can be at least partially incorporated into the weight 1204.

[0191] The cover 1206 may include a protrusion 1212 extending therefrom that is configured to engage with a corresponding cavity 1214 within each end of the channel 1202 to increase the structural rigidity of the cover 1206 connection described in the above examples. In one example, the protrusion 1212 may be substantially cylindrical and parallel to the fastener axis 1216. On the side of the cover 1206 opposite the fastener 1208, the cover 1206 includes a bracket 1218 adjacent to the extended edge 1220, which frictionally engages the remaining sole 102 of the club head 100 to secure the edge 1220 to the body 106. In some examples, the bracket 1218 may extend at an angle substantially parallel to the fastener axis 1216 to guide the cover 1206 to move between the locked configuration and the unlocked configuration described herein. The bracket 1218 may include one or more brackets 1222 to increase the structural rigidity of the bracket 1218.

[0192] Fig.32 1 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1300. Certain components are described above and therefore need not be described further. Fig.30 and Fig.31, the weight assembly 1300 includes an enlarged cover 1302 that selectively secures a slidable weight 1304 to one or more portions of the club head 100. However, in this example, the fastener 1306 is positioned more toward the ball striking face 108 and adjacent to an extended edge 1308 of the cover 1302. This example increases the securement of the edge 1308 to the body 106 of the golf club head 100. In other examples, the fastener 1306 can be positioned at any other location on the cover 1302 as desired or required. For example, toward the toe side 114, toward the heel side 116, centered on the cover 1302, and the like.

[0193] Fig.33 1 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1400. Certain components are described above and therefore need not be described further. Figure 30 to Figure 32 , the weight assembly 1400 includes an enlarged cover 1402 that selectively secures a slidable weight 1404 to one or more portions of the club head 100. However, in this example, the cover 1402 has an extended edge 1406 that is substantially V-shaped. Additionally, the cover 1402 is symmetrical in the toe 114-heel 116 direction. In other examples, the cover 1402 may be asymmetrical in the toe 114-heel 116 direction as desired or required.

[0194] Fig.34 1 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1500. Certain components are described above and therefore need not be described further. Figure 30 to Figure 33 , the weight assembly 1500 includes an enlarged cover 1502 that selectively secures a slidable weight 1504 to one or more portions of the club head 100. However, in this example, the cover 1502 is asymmetrical in the direction of the toe side 114. In other examples, the cover 1502 may be asymmetrical in the direction of the heel side 116 as desired or required.

[0195] Fig.35 1 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1600. Certain components are described above and therefore need not be described further. Figure 30 to Figure 34, the weight assembly 1600 includes an enlarged cover 1602 that selectively secures a slidable weight 1604 to one or more portions of the club head 100. However, in this example, the cover 1602 has an extended edge 1606 that is substantially C-shaped. Additionally, the cover 1602 is symmetrical in the toe 114-heel 116 direction. In other examples, the cover 1602 may be asymmetrical in the toe 114-heel 116 direction as desired or required.

[0196] Fig.36 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1700 . Fig.37 1700 is an exploded perspective view of the counterweight assembly 1700. Certain components are described above and therefore need not be described further. Fig.36 and Fig.37 , a concave channel 1702 is defined in the sole 102 of the body 106 of the club head 100. The channel 1702 has a substantially curved shape in the toe 114-heel 116 direction so that the CG and MOI of the club head 100 can be adjusted for right-left bias (e.g., "F" and "D" markings on the cover 1706 of the weight assembly 1700). In this example, the curve of the channel 1702 substantially corresponds to the rear outer periphery of the body 106 where the sole 102 and the crown 118 are connected together and the rear outer periphery is opposite to the ball striking face 108. The weight assembly 1700 includes a slidable weight 1704, a cover 1706, and a fastener 1708.

[0197] In this example, the cover 1706 is substantially U-shaped, having a toe end 1710 and an opposite heel end 1712. A fastener 1708 is coupled to the cover 1706 by a locking washer 1714 (e.g., a retaining clip), and the fastener 1708 is positioned approximately midway between the ends 1710, 1712 on the concave side of the cover 1706. The fastener 1708 is a threaded bolt that threadably engages a nut 1716 formed in the bottom 102 of the body 106. As the fastener 1708 is rotated, the locking washer 1714 enables the cover 1706 to be rotated along the fastener axis 1718 (in Fig.381704 is shown in the figure 1706) relative to the recessed channel 1702. The fastener 1708 is offset from the recessed channel 1702 toward the front of the body 106 and the ball striking face 108. By offsetting the fastener 1708 from the recessed channel 1702, the length of the recessed channel 1702 can be extended in the toe-heel direction so that the weight 1704 can be positioned at more locations on the sole 102. In addition, by positioning the fastener adjacent to the concave side of the cover 1706, the weight 1704 is disposed closer to the outer periphery of the body 106, thereby increasing the adjustability of the CG and MOI of the club head 100.

[0198] Each end 1710, 1712 of the cover 1706 includes a protrusion 1720 extending therefrom. The protrusion 1720 is sized and shaped so that it can be received within a corresponding cavity 1722 positioned at the end of the recessed channel 1702 and within the bottom 102 of the body 106. The protrusion 1720 can be substantially cylindrical in shape and increase the engagement of the cover 1706 with the body 106 so that when the weight 1704 is secured within the recessed channel 1702 by the cover 1706, movement or rattling of the weight 1704 is limited. The protrusion axis 1724 (at Fig.38 ) is substantially parallel to the fastener axis 178 to facilitate guiding movement of the cover 1706 relative to the recessed channel 1702.

[0199] In operation, weight assembly 1700 is selectively movable between at least three configurations to allow adjustment of the CG and MOI of club head 100. More specifically, in a first or locked configuration, cover 1706 is at least partially disposed within recessed channel 1702 such that weight 1704 is secured within channel 1702 and movement is restricted. Fig.36 1708. When the weight assembly 1700 is in the locked configuration, the protrusion 1720 is at least partially received within and engaged with the cavity 1722. By engaging the cover 1706 to the body 106 at its ends 1710, 1712, the cover 1706 still secures the weight 1704 within the channel 1702 when the weight 1704 is positioned away from the fastener 1708 and reduces or prevents movement of the weight 1704 in the locked configuration. The locked configuration is used when the golf club head 100 is swung.

[0200] Additionally, weight assembly 1700 can be positioned in at least two other configurations that allow weight 1704 to selectively slide with recessed channel 1702 and allow weight 1704 to be completely removed from weight assembly 1700 and club head 100. In a second or weight removal configuration, cover 1706 is partially raised from recessed channel 1702 so that the position of weight 1704 can be adjusted. However, weight 1704 remains within weight assembly 1700 and cannot be completely removed from club head 100. This configuration is Fig.40 , and described further below. In a third or weight removal configuration, cover 1706 is positioned so that weight 1704 can be completely removed, for example, so that different weights (e.g., having different masses) can be used with club head 100 to adjust the swing weight. This configuration is Fig.41 1706 and further described below. However, in each of the three configurations, the cover 1706 remains coupled to the body 106 such that the cover 1706 need not be completely removed. However, in some examples, the weight assembly 1700 may include a fourth configuration (not shown) in which the cover 1706 may be completely removed from the body 106 as desired or required.

[0201] A partial wall 1726 is provided within the recessed channel 1702. The counterweight 1704 has a corresponding recess 1728 (at Fig.38 1704 can slide along the local wall 1726. When the counterweight assembly 1700 is in the counterweight removal configuration, the local wall 1726 at least partially prevents the counterweight 1704 from being completely removed. In some examples, the counterweight 1704 may include at least one locating feature 1730 ( Fig.37 ). The feature 1730 is sized and shaped to engage with a plurality of locating lugs 1732 extending from the cover 1706 (in the locked configuration) when the weight assembly 1700 is in the locked configuration. Fig.39 1704). The positioning lugs 1732 and features 1730 help position the counterweight 1704 at a specific location within the recessed channel 1702. In this example, the positioning lugs 1732 are substantially frustoconical, and the positioning features 1730 have a corresponding concave shape. In other examples, the lugs 1732 and features 1730 may have any other shapes and / or sizes that enable the cover 1706 and the counterweight 1704 to function as described herein.

[0202] Fig.38 It is along Fig.3617 is a cross-sectional view of the weight assembly 1700 taken along line 38-38 in FIG. Certain components have been described above and therefore need not be described further. As described above, the weight 1704 is secured within the recessed channel 1702 by the cover 1706. The fastener 1708 positions and secures the cover 1706 to the body 106 of the golf club head, and therefore, the fastener 1708 only indirectly holds the weight 1704. In some examples, a washer (not shown) may be positioned on the fastener 1708 and between the body 106 and the cover 1706. The recessed channel 1702 is formed in cross section by a bottom track wall 1734 and a side wall 1736 arranged in a substantially L-shaped configuration with a corner 1738. In this example, the corner 1738 has an angle less than or equal to 90°. On the other hand, the corner 1738 has an angle less than 90° such that the side wall 1736 is undercut. As such, when weight assembly 1700 is in the locked configuration, cover 1706 wedges weight 1704 into corner 1738 and against sidewall 1736 to frictionally secure weight 1704 within recessed channel 1702 and at least partially beneath sidewall 1736 .

[0203] The partial wall 1726 is adjacent to the corner 1738 and extends in an upward direction on the bottom track wall 1734 and has a height H1. The weight 1704 has a corresponding recess 1728 that receives at least a portion of the partial wall 1726. The partial wall 1726 at least partially contains the weight 1704 within the weight assembly 1700 when the weight assembly 1700 is in the locked configuration and the weight sliding configuration. The weight 1704 also includes a tail 1740 that protrudes from the recessed channel 1702 and extends from under the cover 1706. The tail 1740 of the weight 1704 provides a structure for the user to grasp and slide the weight 1704 as required or needed. The tail 1740 is also visible on the outer surface of the club head, so that its position is easily determined by visual inspection. In this example, the tail 1740 corresponds at least partially to the shape of the bottom track wall 1734 of the recessed channel 1702. In other examples, tail portion 1740 may have any other size and / or shape as desired or necessary.

[0204] Fig.39 The weight assembly 1700 (in Figure 36 to Figure 38 1706). The cover 1706 is generally U-shaped with a concave side that receives a fastener at an eyelet 1744. The inner surface 1742 has a plurality of locating lugs 1732 near the convex side that are configured to engage with locating features 1730 in the counterweight 1704 (in FIG. Fig.37). When engaged (e.g., in a first locked configuration), the cover 1706 wedges the counterweight into the corners of the recessed channel and against the sidewalls. However, when the cover 1706 is raised from the recessed channel, the locating lugs 1732 disengage from the counterweight so that the counterweight can be moved (e.g., in a counterweight sliding configuration), or the counterweight can be completely removed (e.g., in a counterweight removal configuration).

[0205] Each end 1710, 1712 of the cover 1706 includes a protrusion 1720 that, in addition to the fasteners, secures the cover 1706 to the body of the club head. In this example, the protrusion 1720 engages with the cavity 1722 (in the case of the weight assembly) in all three configurations (e.g., locked, weight moved, and weight removed). Fig.37 1720 is engaged with the protrusion 1720 (shown in FIG. 17). In addition, the protrusion 1720 also at least partially defines each of the three configurations. The protrusion 1720 is substantially cylindrical in shape and is configured to extend through the bottom of the body and extend into the interior cavity of the club head via the chamber 1722. In this example, the protrusion 1720 includes a plurality of flexible arms 1746 that are circumferentially spaced apart to form a substantially cylindrical protrusion 1720. As shown, the protrusion 1720 includes three discrete flexible arms 1746. In other examples, the protrusion 1720 may include any other number of flexible arms 1746 (e.g., 2, 4, 5, etc.) as desired or required.

[0206] Fig.40 It is in a counterweight sliding structure and moves along Fig.364. A cross-sectional view of the weight assembly 1700 is shown in FIG. 17. The protrusion 1720 has a distal end 1748 (relative to the inner surface 1742 of the cover 1706) that is formed as a tapered nose so that the cover 1706 can be press-fit into the body 106 of the golf club head and extends all the way to the interior cavity 122 and through the chamber 1722. For example, the flexible arm 1746 can be radially deflected to extend through the chamber 1722 and snap into place. This connection allows the cover 1706 to be secured to the body 106 and completely removed as desired or required. However, the cover 1706 does not need to be removed to adjust the weight 1704. The distal end 1748 includes at least one stop 1750 extending radially outward on the protrusion 1720. In this example, the stop 1750 is formed as part of the tapered nose. The protrusion 1720 also has a proximal end 1752 (relative to the inner surface 1742 of the cover 1706) that is formed as a substantially cylindrical post. When the cover 1706 is in the locked configuration, the proximal end 1752 frictionally engages the chamber 1722. This engagement helps the cover 1706 secure the counterweight 1704 within the recessed channel 1702 (in addition to the fasteners). In addition, at least one rib 1754 extends radially on the protrusion 1720. The rib 1754 is located between the distal end 1748 and the proximal end 1752 and is offset from the stop 1750 by a distance D1.

[0207] In order to lock the weight assembly 1700 from the cover 1706 to secure the weight 1704 in the recessed channel 1702, the locking structure (in Fig.36 ) is moved to a counterweight moving structure (in Fig.40 1702), the threaded fastener 1708 is rotated to lift the cover 1706 out of the recessed channel 1702. When the rib 1754 engages the end wall 1756 of the chamber 1722, further movement of the cover 1706 is limited and the cover 1706 is raised to a height H2 relative to the body 106 of the club head. In this way, the cover 1706 indicates that the weight assembly 1700 is in the weight movement configuration. In order to move the weight assembly 1700 through the weight movement configuration to the weight removal position, additional force can be introduced into the weight assembly 1700 (e.g., via rotation of the fastener 1708) to overcome the engagement between the rib 1754 and the chamber 1722 until the flexible arm 1746 bends and the cover 1706 can be further lifted out of the recessed channel 1702.

[0208] Fig.41 is in the counterweight removed configuration and along Fig.3640-40 in FIG. 17. Once the engagement of the rib 1754 and the end wall 1756 is overcome by force (e.g., via rotation of the fastener 1708 driving the cover 1706 to move), the counterweight assembly 1700 can be moved from the counterweight moving configuration (in Fig.40 1704 is moved to the counterweight removal configuration. In the counterweight removal configuration, since the cover 1706 is raised even further from the recess 1702, the counterweight 1704 can be completely removed from the recess 1702. When the stop 1750 engages the end wall 1756 of the chamber 1722, further movement of the cover 1706 is limited and the cover 1706 is raised to a height H3. The height H3 is greater than the previous counterweight sliding configuration (in Fig.40 1704). In this way, cover 1706 indicates that counterweight assembly 1700 is in the counterweight removal configuration and counterweight 1704 can be completely removed. In some examples, counterweight assembly 1700 can be moved past the counterweight removal configuration and allow cover 1706 to be completely removed. If this is the case, additional force is introduced into counterweight assembly 1700 to overcome the engagement between stop 1750 and chamber 1722 until flexible arm 1746 bends and cover 1706 can be completely removed. In this example, stop 1750 is radially larger than rib 1754, so that the force required to completely remove cover 1706 is greater than the force required to move between the counterweight movement configuration and the counterweight removal configuration.

[0209] Because the rib 1754 at least partially defines the counterweight removal configuration and the stop 1750 at least partially defines the counterweight removal configuration, the distance D1 between the rib 1754 and the stop 1750 (in Fig.40 1706 between two different configurations H2 and H3. In one aspect, distance D1 can be about 5 mm. In addition, in one example, distance D1 can be at least equal to height H1 of partial wall 1726 (in Fig.37 and Fig.38 1704 and 1706), such that in the counterweight removal configuration, the counterweight 1704 can be lifted from the partial wall 1726 and removed from the counterweight assembly 1700. In other examples, the ribs 1754 or stops 1750 can be completely removed from the cover 1706, such that the cover 1706 is only moved between the two configurations as desired or needed.

[0210] Fig.421800 is a perspective view of a sole 1802 of another golf club head 1800 having another weight assembly 1804, wherein the other weight assembly 1804 is in a locked configuration. The golf club head 1800 is a fairway metal type golf club head having a body 1806 including a ball striking face 1808 having a lower edge 1810 and an upper edge 1812 (at Fig.43 1800 ), a lower edge 1810 and an upper edge 1812 both extend between a toe 1814 and a heel 1816. The sole 1802 extends from the lower edge 1810 on the bottom side of the club head 1800, and the crown 1818 extends from the upper edge 1812 on the top side of the club head 1800. The sole 1802, the ball striking face 1808, and the crown 1818 are coupled together to define an outer surface 1820 of the body 1806, wherein an inner cavity 1822 (at Fig.44 18). The hosel 1824 is disposed at the heel 1816 and is configured to be coupled to a shaft (not shown). The components of the fairway metal club head 1800 (e.g., sole, striking face, crown, hosel, etc.) function similarly to those described above in Figures 1 to 41 However, the fairway metal golf club head 1800 may hit the golf ball directly out of the ground, thus requiring or requiring the outer surface 1820 of the sole 1802 to be substantially smooth without any protruding parts. Fig.42 As shown, club head 1800 is a fairway metal club head, however, body 1806 may form any type of club head, such as an iron-type club head, a hybrid-type club head, or a metal wood-type club head (e.g., Figures 1 to 41 1804. In addition, the features of weight assembly 1804 described below may be used in addition or alternatively with any type of club head described herein, as desired or required.

[0211] In this example, a recessed channel 1826 is defined within the sole 1802 of the body 1806 of the club head 1800. The channel 1826 extends in the toe 1814-heel 1816 direction so that the CG and MOI of the club head 1800 can be adjusted for right-left bias (e.g., "F" and "D" markings on the cover 1830 of the weight assembly 1804). The weight assembly 1804 includes a slidable weight 1828 at least partially disposed within the channel 1826, a cover 1830 extending at least partially over the channel 1826, and a fastener 1832 configured to couple the cover 1830 to the body 1806. The fastener 1832 indirectly holds the weight 1828 in the recessed channel 1826 through the cover 1830 so that the weight 1828 can be used to adjust the CG and MOI of the club head 1800. In this example, the weight assembly 1804 and the recessed channel 1826 are located in the "front portion" of the golf club head 1800. By "front portion" it is meant that the weight 1828 is closer to the ball striking face 1808 than the rearmost outer perimeter of the body 1806 where the sole 1802 and the crown 1818 are coupled together at a position farthest from the ball striking face 1808.

[0212] like Fig.42 As shown, the weight assembly 1804 is in a locked configuration, wherein the cover 1830 is at least partially disposed within the recessed channel 1826 and the weight 1828 is fixed within the channel 1826 and restricted from movement. When the cover 1830 and the weight assembly 1804 are in the locked configuration, the weight 1828 is completely disposed within the channel 1826, and no portion of the weight 1828 extends above the outer surface 1820 of the body 1806. In addition, the cover 1830 has an outer surface 1834, and when the cover 1830 and the weight assembly 1804 are in the locked configuration, the outer surface 1834 of the cover 1830 is aligned with the outer surface 1820 of the body 1806, and no portion of the cover 1830 extends above the outer surface 1820 of the body 1806. Because the weight assembly 1804 is disposed entirely within the recessed channel 1826 and is at least aligned with or below the outer surface 1820 of the body 1806, the smoothness of the outer surface 1820 of the club head 1800 is maintained, thereby promoting good ground interaction.

[0213] Fig.43is a perspective view of the sole 1802 of the golf club head 1800 with the weight assembly 1804 in an unlocked configuration. Certain components are described above and therefore need not be described further. By rotation of the fastener 1832, the cover 1830 can be at least partially lifted out of the recessed channel 1826 and into the unlocked configuration. In the unlocked configuration, the weight 1828 can be selectively slid within the channel 1826 to adjust the CG and MOI as desired or needed. In this example, the weight 1828 is engaged with the cover 1830 so that the weight 1828 moves between the unlocked configuration and the locked configuration with the cover 1830, and when in the unlocked configuration, the weight 1828 is at least partially lifted out of the recessed channel 1826. It should be understood that although Fig.42 and Fig.43 The weight assembly 1804 is shown and described in two different configurations (i.e., a locked configuration and an unlocked configuration), but the weight assembly 1804 can be moved between more than two configurations as desired or required. For example, the weight assembly 1804 can be moved between the two configurations as described above. Figure 36 to Figure 41 Movement between at least three configurations is described, namely a locked configuration, a counterweight movement configuration, and a counterweight removal configuration.

[0214] Fig.44 It is along Fig.42 A cross-sectional view of golf club head 1800 with weight assembly 1804 is shown taken along line 44-44 in FIG. Fig.45 It is along Fig.42 A partial perspective cross-sectional view of the weight assembly 1804 taken along line 44-44 in FIG. Fig.44 and Fig.45 , certain components are described above and therefore need not be described further. The fastener 1832 is a threaded bolt that threadably engages a nut 1836 formed within the bottom 1802 of the body 1806. The fastener 1832 is coupled to the cover 1830 via a locking washer 1838, thereby translating linear movement (e.g., by rotation of the fastener 1832) to the cover 1830, and the cover 1830 can be moved in and out of the recessed channel 1826 as described herein.

[0215] In this example, the channel 1826 is defined by a bottom rail 1840 and two opposing side walls 1842, 1844. The first side wall 1842 is adjacent to the ball striking face 1808 and the second side wall 1844 is adjacent to the rear portion of the bottom 1802. The cover 1830 is substantially L-shaped, having a long leg 1846 and a short leg 1848. The short leg 1848 includes a portion that is coupled to the fastener 1832, and the short leg 1848 and the fastener 1832 are both located adjacent to the second side wall 1844. The short leg 1848 also includes a flange 1850. The weight 1828 includes a recess 1852 that is sized and shaped to receive the flange 1850. The weight 1828 is slidingly engaged with the cover 1830 and the flange 1850 that is at least partially received within the recess 1852. This engagement between the cover 1830 and the weight 1828 enables the weight 1828 to be in a locked configuration (in a locked configuration) with the cover 1830. Fig.42 ) and unlocked position (shown in Fig.43 1826) and also slides the weight 1828 in the toe-heel direction relative to the cover 1830 when the weight assembly is in the unlocked configuration. The long legs 1846 also substantially cover the weight 1828 when the cover 1830 is in the locked configuration, thereby increasing the smoothness of the exterior surface 1820 of the club head 1800.

[0216] The bottom rail 1840 includes a plurality of bosses 1854 extending into the channel 1826. In this example, there are three bosses 1854, one corresponding to the right-biased position of the counterweight 1828, the left-biased position of the counterweight 1828, and the center neutral position of the counterweight 1828. In addition, the first side wall 1842 includes a plurality of recesses 1856 corresponding to the plurality of bosses 1854. The counterweight 1828 includes a hollow portion 1858 sized and shaped to receive the bosses 1854 and a position indicator 1860 sized and shaped to be received in the recesses 1856. In operation, when the counterweight assembly 1804 is in the unlocked configuration (in Fig.43 1828 is raised above the boss 1854 so that it can be selectively moved between the boss 1854 and the recess 1856 of the channel 1826. Once the counterweight 1828 is positioned, the counterweight assembly 1804 can be moved to the locked configuration (in Fig.42 ), and the selected boss 1854 is at least partially received in the hollow portion 1858 of the counterweight 1828, and the position indicator 1860 is at least partially received in the selected recess 1856.

[0217] In this example, when the weight assembly 1804 is in the locked configuration, at least a portion of the position indicator 1860 of the weight 1828 is visible on the exterior surface 1820 of the club head 1800. This allows a user to easily visually verify the position of the weight 1828 on the club head 1800. It should be understood that although three bosses 1854 and recesses 1856 are shown and described, any other number of boss and recess locating features may be provided to define the position of the weight 1828 within the recessed channel 1826. For example, five sets of bosses and recesses may be provided. In addition, the position indicator 1860 has a cutout so that when the cover 1830 is raised to the unlocked configuration (in Fig.43 ), the position indicator 1860 can slide completely out of the recess 1856 and move above the first side wall 1842 to adjust the position of the counterweight 1828.

[0218] The cover 1830 may also include one or more protrusions 1862 that are sized and shaped to be received in corresponding cavities 1864 of the recessed channel 1826. The protrusions 1862 are configured to increase the engagement of the cover 1830 with the body 1806, thereby limiting the movement or rattling of the weight 1828 when the weight 1828 is secured within the recessed channel 1826 by the cover 1830. In some examples, the protrusions 1862 may be similar to those described above with reference to Figure 36 to Figure 41 The protrusion includes one or more flexible arms, a tapered nose, a stopper and at least one rib.

[0219] Fig.46 is a bottom view of golf club head 1800 with another weight assembly 1900 . Fig.47 It is along Fig.46 A perspective cross-sectional view of a golf club head 1800 having a weight assembly 1900 is shown taken along line 47-47 in FIG. Fig.46 and Fig.47 , some of the components are described above and therefore need not be described further. Figure 42 to Figure 45 In the example described in , a weight assembly 1900 includes a cover 1902 that selectively secures a slidable weight 1904 within a recessed channel 1906. The weight 1904 engages the cover 1902 so that the weight 1904 moves between two or more configurations with the cover 1902. However, in this example, when the cover 1902 is in the locked configuration, the cover 1902 completely covers the weight 1904 within the channel 1906. The cover 1902 can be formed of a material that is at least partially transparent so that the position of the weight 1904 is visible to the user.

[0220] Fig.48is a perspective view of another golf club head 2000 . Fig.49 FIG. 2 is a bottom view of a club head 2000 having another weight assembly 2002. Fig.48 and Fig.49 As shown, the golf club head 2000 is an iron-type golf club head, which includes a ball striking face 2004 configured to strike a golf ball. The ball striking face 2004 is connected to a top line portion 2006, a toe portion 2008, and a heel portion 2010. The toe portion 2008 and the heel portion 2010 are also at least partially connected to the top line portion 2006. The heel portion 2010 is connected to a hosel 2012, which is configured to be coupled to a shaft (not shown). The ball striking face 2004 is also connected to a sole 2014. The golf club head 2000 also includes a back portion 2016 at least partially attached to the sole 2014, the top line portion 2006, the toe portion 2008, and the heel portion 2010.

[0221] Components of golf club head 2000, such as ball striking face 2004, top line portion 2006, toe portion 2008, heel portion 2010, and back portion 2016, can be metal materials, such as steel. The components of golf club head 2000 can be formed by a casting process. Some components can be cast as a single piece, and the remaining components can be attached after the casting process. For example, sole 2014, top line portion 2006, toe portion 2008, heel portion 2010, and back portion 2016 can be cast as a single piece. Then, ball striking face 2004 can be attached to the single piece by welding or any other suitable process for attaching two club head components to each other. In such an example, ball striking face 2004 can be an insert.

[0222] In operation, sole 2014 generally provides a lower surface of club head 2000 when club head 2000 is placed in a ball striking address position. Club head 2000 defines a center of gravity (CG) and moment of inertia (MOI) that affect the flight characteristics of a golf ball when the golf ball is struck with ball striking face 2004. Weight assembly 2002 is coupled to club head 2000 so that the CG and / or MOI of club head 2000 can be selectively adjusted as desired or required. In this example, weight assembly 2002 includes a removable weight 2018, a cover 2020 configured to secure weight 2018 in place, and a fastener 2022 for coupling weight assembly 2002 to one or more portions of club head 2000. An elongated recessed channel 2024 is formed in the sole 2014 of the club head 2000 and is sized and shaped to receive at least a portion of the weight 2018. Similar to the above example, the fastener 2022 is adapted to retain the weight 2018 in the channel 2024 only indirectly via the cover 2020. Additionally, the cover 2020 may be loosened or completely removed via the fastener 2022 to allow the weight 2018 to slide within the channel 2024 and selectively adjust the CG and MOI as desired or required.

[0223] In this example, fastener 2022 is positioned at the toe end of weight assembly 2002 and aligned with channel 2024. In other examples, fastener 2022 may be positioned at the heel end of weight assembly 2002 as desired or required.

[0224] Fig.50 is a cross-sectional view of another counterweight assembly 2100 . Fig.51 is a schematic diagram of the counterweight assembly 2100. Fig.50 and Fig.51 , a recessed channel 2102 is defined within a body 2104 of a club head (e.g., the club heads 100, 1800, and / or 2000 described above). The weight assembly 2100 includes a slidable weight 2106 and a cover 2108. The weight 2106 is retained within the channel 2102 using a fastener (not shown). In this example, the cover 2108 includes an inner surface 2110 that engages at least a portion of the weight 2106 when the weight 2106 is secured within the channel 2102. In this example, at least a portion of the inner surface 2110 of the cover 2108 includes a friction material lining 2112. The friction material 2112 is configured to frictionally engage the weight 2106 when the cover 2108 is in a locked configuration. By frictionally engaging the weight 2106 with the cover 2108, the weight 2106 is secured within the channel 2102 while reducing or preventing rattling of the weight 2106 therein. In this example, the friction material may be a soft metal material, such as brass.

[0225] The friction material 2112 may include a plurality of grooves 2114 on the mating surface with the counterweight 2106. In this example, the shape of the grooves 2114 may be triangular, but other shapes are also contemplated. When a clamping load 2116 is applied to the friction material 2112, the material yields to hold the counterweight 2106 in place (e.g., Fig.51 2102, and matches the specific surface combination of the channel 2102, the weight 2106, and the cover 2108. Once deformed and contact stresses are generated, the friction material 2112 will not deform further. By frictionally engaging the weight 2106 with the cover 2108, the weight 2106 can be positioned anywhere within the channel 2102, and there is no need to include indexing features. In addition, by eliminating the indexing features, the weight 2106 and the channel 2102 have substantially flatter surfaces, which improves manufacturing efficiency.

[0226] In this example, the cover 2108 may also include one or more protruding notches 2118 that engage with corresponding cavities 2120 within the body 2104. The notches 2118 may be substantially circular in shape. The notches 2118 and cavities 2120 are described below with reference to Fig.52 and Fig.53 Further Description It should be appreciated that although the friction material 2112 is shown coupled to the cover 2108 , the friction material 2112 may additionally or alternatively be coupled to the weight 2106 .

[0227] Fig.52 The weight assembly 2100 (in Fig.50 A top view of the cover 2108 is shown in FIG. Fig.53 is a side view of the cover 2108. Also refer to Fig.52 and Fig.53 , some of the components are described above and therefore need not be described further. The cover 2108 includes a plurality of protruding recesses 2118 that engage with corresponding cavities 2120 in the body 2104. By engaging the cover 2108 at multiple locations, the cover 2108 is limited or prevented from bending out of alignment with the outer surface of the body 2104 when the weight is secured. Fig.53 As shown, the side cavities may be tapered to accept a cover 1206 that is slid at an angle.

[0228] Fig.542 is a bottom view of another golf club head 2200 having another weight assembly 2202, wherein the other weight assembly 2202 is in a locked configuration. The golf club head 2200 includes a body 2204 having a sole 2206, and the weight assembly 2202 is disposed on the sole 2206. The body 2204 also includes a ball striking face and a crown (neither of which are shown), such that the body 2204 has an outer surface 2208. In one aspect, the golf club head 2200 can be a fairway metal type golf club head, however, the body 2204 can form any type of club head, such as an iron type club head, a hybrid type club head, or a driver head or other metal wood type club head (e.g., Figures 1 to 53 In addition, the functions of the components of the club head 2200 (e.g., the sole, the striking face, the crown, the hosel, etc.) are the same as those described above. Figures 1 to 53 The components described in the present invention function similarly. In addition, the features of the weight assembly 2202 described below can be used in addition or alternatively for any type of club head described herein, as desired or required.

[0229] In this example, a recessed channel 2210 is defined within the bottom 2206 of the body 2204 of the club head 2200. The recessed channel 2210 extends in the toe-heel direction so that the CG and MOI (e.g., for right-left bias) of the club head 2200 can be adjusted. The weight assembly 2202 includes a slidable weight 2212 at least partially disposed within the channel 2210, a cover 2214 extending at least partially over the channel 2210, and a fastener 2216 configured to couple the cover 2214 to the body 2204. The fastener 2216 indirectly holds the weight 2212 in the recessed channel 2210 via the cover 2214 so that the weight 2212 can be used to adjust the CG and MOI of the club head 2200.

[0230] like Fig.54 As shown, the weight assembly 2202 is in a locked configuration, wherein the cover 2214 is at least partially disposed within the recessed channel 2210, and the weight 2212 is fixed within the channel 2210 to restrict movement. When the cover 2214 and the weight assembly 2202 are in the locked configuration, at least a portion of the weight 2212 is visible between the body 2204 and the cover 2214. This configuration enables a user to more easily determine the position of the weight 2212 within the recessed channel 2210. The weight assembly 2202 can also be moved to an unlocked configuration as described herein. For example, by rotating the fastener 2216, the cover 2214 can be at least partially lifted out of the recessed channel 2210 and enable the weight 2212 to be repositioned.

[0231] In this example, the counterweight 2212 overlaps and engages the cover 2214 so that the two move together between a locked configuration and an unlocked configuration. In addition, this engagement reduces or prevents twisting and tilting of the counterweight 2212 relative to the cover 2214 as the counterweight 2212 is raised and lowered relative to the recessed channel 2210. In this way, the counterweight 2212 is prevented from binding within the recessed channel 2210 during counterweight adjustment, thereby improving the performance of the counterweight assembly 2202.

[0232] Fig.55 It is along Fig.54 A perspective cross-sectional view of the counterweight assembly 2202 taken along line 54-54 in FIG. Fig.56 It is along Fig.54 A cross-sectional view of the cover 2214 taken along line 54-54 in FIG. Fig.55 and Fig.56 , the cover 2214 has a shelf 2218 that is constructed to slidably engage with the weight 2212. In this example, the shelf 2218 is open in a direction facing the ball striking face of the club head and away from the fastener 2216. In addition, the shelf 2218 extends in the toe-heel direction within the cover 2214. However, it should be understood that the shelf 2218 can be defined within the cover 2214 in any other orientation and / or direction as desired or required to achieve the functionality of the adjustable weight described herein. When the cover 2214 is in the unlocked position, the weight 2212 is raised relative to the club head so that the weight 2212 can selectively slide (in the direction of the shelf 2218 and the recessed channel 2210) within the Fig.54 ). In contrast, when the cover 2214 is in the locked position, the counterweight 2212 is at least partially disposed within the recessed channel 2210 and the shelf 2218 and secured therein to limit or prevent movement of the counterweight 2212. In this example, the shelf 2218 provides an overlap between the cover 2214 and the counterweight 2212, thereby reducing binding of the counterweight 2212 in the recessed channel.

[0233] The shelf 2218 includes an outer wall 2220 and an opposing inner wall 2222. As described herein, the outer wall and the inner wall of the shelf 2218 are relative to the interior cavity of the body 2204 of the club head (in Fig.542214). Thus, the outer wall 2220 is disposed proximate to the outer surface 2224 of the cover 2214. The counterweight 2212 is configured to be at least partially slidably received between the outer wall 2220 and the inner wall 2222 of the shelf 2218 and to abut against the inner wall 2226 of the shelf 2218. The three walls of the shelf 2218 hold the counterweight 2212 within the cover 2214, thereby limiting or preventing the position of the counterweight 2212 from tilting relative to the cover 2214 when moving between the locked configuration and the unlocked configuration. This configuration limits the binding of the counterweight 2212 within the counterweight assembly 2202, thereby improving the performance of the counterweight assembly 2202.

[0234] In this example, the position of the counterweight 2212 within the cover 2214 can be measured by an inclination angle 2228, which is defined as the angular position of the counterweight 2212 relative to the outer wall 2220 of the shelf 2218. In one aspect, the inclination angle 2228 is substantially the same in the unlocked configuration and the locked configuration. In another aspect, the inclination angle 2228 is substantially parallel to the outer wall 2220 of the shelf 2218 in both the unlocked configuration and the locked configuration. The counterweight 2212 has an outer surface 2230 that is positioned directly against the outer wall 2220, the inner wall 2222, and the inner wall 2226 of the cover 2214 when the counterweight 2212 is received within the shelf 2218. In this way, the outer surface 2230 of the counterweight 2212 maintains its position directly against the wall of the shelf 2218 in both the unlocked configuration and the locked configuration.

[0235] The weight 2212 includes a position indicator 2232 that at least partially extends from the shelf 2218. The position indicator 2232 can be used to selectively slide the weight 2212 when the weight assembly 2202 is in the unlocked configuration. When in the locked configuration, the position indicator 2232 is visible between the cover 2214 and the body of the club head so that a user can easily determine the weight characteristics of the club head. In addition, the position indicator 2232 can be disposed in a recessed seat (e.g., Fig.45 The counterweight 2212 also includes a hollow portion 2234 that is sized and shaped to receive a boss (e.g., Fig.45 Boss 1854 is shown. In this example, the hollow portion 2234 is disposed adjacent to the inner wall 2222 of the shelf 2218.

[0236] The cover 2214 may also include one or more protrusions 2236 that are sized and shaped to be received within corresponding chambers (not shown) of the recessed channel. The protrusions 2236 are configured to increase engagement of the cover 2214 with the golf club head body, thereby limiting movement or rattling of the weight 2212 when the weight 2212 is secured within the recessed channel by the cover 2214. The protrusions 2236 may also be used to limit movement of the weight 2212 from the body 2204 (at Fig.54 2236 to form a soft stop before fully loosening and removing the cover 2214 from the body. In some examples, the protrusion 2236 can be similar to the above reference Figure 36 to Figure 41 The protrusion described includes one or more flexible arms, a tapered nose, a stop and at least one rib.

[0237] In this example, the width 2238 of the outer wall 2220 relative to the inner wall 2226 is greater than the width 2240 of the inner wall 2222. This configuration allows the counterweight 2212 to remain within the shelf 2218 without tilting and binding within the counterweight assembly 2202. In addition, the counterweight 2212 includes a hollow portion 2234 and a position indicator 2232 that can extend from the shelf 2218 and perform the functions of the counterweight assembly 2202 described herein. For example, the inner wall 2226 allows the hollow portion 2234 of the counterweight 2212 to engage with a corresponding structure within the recessed channel. In one aspect, the width of the outer wall is approximately 2 to 4 times the width of the inner wall. In another aspect, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is greater than or equal to 2:1. In yet another aspect, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is greater than or equal to 3: 1. In yet another aspect, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is between approximately 2: 1 and 4: 1. It should be understood that other ratios are also contemplated herein and may not be explicitly listed above.

[0238] Fig.57 is a perspective view of the counterweight 2212. Fig.58 is a schematic top plan view of the counterweight 2212. See also Fig.57 and 58 as well as Fig.54, when the weight assembly 2202 is in the locked configuration, at least a portion of the weight 2212 is exposed and visible between the outer surface of the cover 2214 and the outer surface 2208 of the body 2204. That is, a gap is at least partially formed between a portion of the cover 2214 and the body 2204, and the weight 2212 at least partially fills the gap. For example, the position indicator 2232 can be exposed and visible on the golf club head 2200. This configuration makes it easy to determine the position of the weight 2212. However, the weight 2212 is not completely exposed and visible. By reducing the portion of the weight 2212 exposed on the golf club head 2200, the smoothness between the outer surface 1820 of the club head 2200 and the cover 2214 is increased. In this way, the golf club head 2200 has increased performance (e.g., directly hitting the golf ball off the ground, aerodynamic performance, etc.), while also including the weight adjustable function via the weight assembly 2202 described herein.

[0239] In this example, approximately 0% to 30% of the counterweight 2222 is exposed and visible between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214 in the locked configuration. In one aspect, approximately 10% to 20% of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214 in the locked configuration. In another aspect, approximately 16% of the counterweight 2212 is exposed. It should be understood that other percentage values ​​are also contemplated herein and are not explicitly listed above. Although not shown in the figures, the counterweight 2212 may be completely invisible without departing from the scope and content of the present invention.

[0240] Reference Fig.57 , the visible and exposed percentage of the weight 2212 (e.g., portion 2242) can be based on the outer surface area 2230 of the weight 2212. As used herein, the outer surface 2230 of the weight 2212 includes Fig.57 More than one side of the weight shape shown and the entire outer perimeter. For example, in one aspect, in the locked configuration, approximately 0% to 30% of the outer surface 2230 of the weight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In another aspect, in the locked configuration, approximately 10% to 20% of the outer surface 2230 of the weight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In yet another aspect, approximately 16% of the outer surface 2230 of the weight 2212 is exposed. It should be understood that other percentage values ​​are also contemplated herein and are not explicitly listed above.

[0241] Reference Fig.58, the visible and exposed percentage of the weight 2212 (e.g., portion 2244) can be based on the planar surface area 2246 of the weight 2212. As used herein, the planar surface area 2246 is the surface area on only one protruding side of the weight shape (e.g., the top planar area). Fig.58 2204 and the cover 2214. The top planar area is shown in FIG. 2204 , but other weight sides are also contemplated herein (e.g., right planar area, left planar area, etc.). For example, in one aspect, approximately 0% to 30% of the planar surface area 2246 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214 in the locked configuration. In another aspect, approximately 10% to 20% of the planar surface area 2246 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214 in the locked configuration. In yet another aspect, approximately 16% of the planar surface area 2246 of the counterweight 2212 is exposed. It should be understood that other percentage values ​​are also contemplated herein and are not explicitly listed above.

[0242] Fig.59 is a schematic perspective view of an exemplary testing machine 2300 having another counterweight assembly 2302 . Fig.60 It is along Fig.59 A cross-sectional view of the counterweight assembly 2302 taken along line 60-60 in FIG. Fig.61 It is along Fig.59 Another cross-sectional view of the weight assembly 2302 taken along line 61-61 in FIG. Figure 59 to Figure 61 , the testing machine 2300 represents the golf club head described herein and can be used to test and develop features of the weight assembly 2302 as desired or needed. The club head represented by the testing machine 2300 can be any type of club head described herein as desired or needed, such as, but not limited to, a metal wood-type golf club head, a fairway metal-type club head, an iron-type club head, or a hybrid-type club head. In one aspect, the club head represented by the testing machine 2300 is a metal wood-type club head having a ball striking face, a sole extending from a lower edge of the ball striking face, and a crown extending from an upper edge of the ball striking face (all three of which are not shown in FIG. 1 ). Figures 59 to 60 ). In one aspect, the transition area where the sole and the crown are joined together opposite the ball striking face is referred to as the skirt of the club head, and the weight assembly 2302 is at least partially disposed on the skirt. Thus, the weight assembly 2302 is disposed at the rear periphery of the club head and near where the sole and the crown are joined together. In one aspect, the weight assembly 2302 is substantially disposed at the rear of the club head opposite the ball striking face. An example of a weight assembly disposed on the skirt of a golf club head is shown in FIG. Figure 823 and described above. In this example, the testing machine 2300 includes a body 2304 having an outer surface 2306 that represents the body of a club head. In addition, a bracket 2307 is coupled to the body 2304 to facilitate testing and development, and the bracket 2307 does not represent a club head. In one aspect, the shape of the bracket 2307 is substantially triangular.

[0243] In this example, a recessed channel 2308 is defined in an outer surface 2306 of the body 2304. The channel 2308 extends along a curve in a generally toe-heel direction so that the CG and MOI of the club head can be adjusted by the weight assembly 2302. The weight assembly 2302 includes a weight 2310 at least partially disposed within the channel 2308 and configured to slide therein, a cover 2312 extending at least partially over the channel 2308, and a fastener 2314 configured to couple the cover 2312 to the body 2304. The fastener 2314 is configured to indirectly retain the weight 2310 in the recessed channel 2308 via the cover 2312 and so that the weight 2310 can be used to adjust the CG and MOI of the club head.

[0244] Similar to the examples described above, the weight assembly 2302 is configured to be in at least a locked configuration ( Fig.59 and Fig.61 shown) and unlocked configuration ( Fig.60 2308 and the counterweight 2310 are fixed in the channel 2308 in a manner limited in movement. In the unlocked configuration, the fastener 2314 enables the cover 2312 to move along the fastener axis, thereby allowing the counterweight 2310 to slide relative to the cover 2312 and the body 2304. In one aspect, from the locked configuration, the fastener 2314 can be rotated approximately 2 to 3 turns to release the cover 2312 from the locked configuration and allow the counterweight 2310 to slide at least partially within the recessed channel 2308. In another aspect, the fastener 2314 can be rotated approximately 2.5 turns to allow the counterweight 2310 to slide within the counterweight assembly 2302.

[0245] The cover 2312 has a first end 2316 and an opposing second end 2318. The fastener 2314 is coupled to the first end 2316 of the cover 2312 (e.g., via a locking washer) and such that the fastener 2314 is used to attach the cover 2312 to the body 2304. The second end 2318 of the cover 2312 includes a protrusion 2320. The protrusion 2320 of the second end 2318 is configured to engage with a corresponding cavity 2322 defined at the end of the recessed channel 2308. In the locked configuration, the fastener 2314 secures the first end 2316 of the cover 2312 to the body 2304, while the protrusion 2320 of the second end 2318 engages with the cavity 2322 of the channel 2308, such that the position of the weight 2310 within the recessed channel 2308 is maintained between the first end 2316 and the second end 2318 of the cover 2312. When the weight assembly 2302 is moved toward the unlocked configuration, the fastener 2314 is used to move the cover 2312 along the fastener axis and lift the cover 2312 at least partially out of the recessed channel 2308. This configuration enables the weight 2310 to be slid and repositioned on the body 2304 of the golf club head. In this example, the protrusion 2320 extends in a direction substantially parallel to the fastener axis so that the cover 2312 can be uniformly lifted out of the recessed channel 2308. In one aspect, the cavity 2322 is formed as an undercut in the sidewall of the recessed channel 2308, and the undercut engages with the protrusion 2320 of the cover 2312. The fastener 2314 is located at the opposite end of the undercut.

[0246] To assist in positioning the counterweight 2310 at a preselected position within the recessed channel 2308, the cover 2312 includes at least one locating lug 2324 extending from an inner surface of the cover 2312. The counterweight 2310 includes a corresponding hollow portion 2326 that is shaped and dimensioned to receive at least a portion of the locating lug 2324. Fig.60 As shown, the cover 2312 has three spaced-apart locating lugs 2324 such that the hollow portion 2326 can selectively engage the lugs 2324 at three discrete locations within the recessed channel 2308. In one aspect, the locating lugs 2324 can be asymmetrical, for example, one side of the lug 2324 can have an inclined side with a greater slope than an opposite inclined side with a lesser slope. Further, in this example, the counterweight 2310 has a first inclined surface 2332 at one end and a second inclined surface 2334 at the opposite end proximate the hollow portion 2326 side. The first inclined surface 2332 and the second inclined surface 2334 are different and are configured to engage with one of the more inclined and less inclined sides of the locating lug 2324. This configuration allows the counterweight 2310 to be positioned between the two locating lugs 2324 and selectively engage therewith. Thus, as Fig.60As shown, the weight 2310 can engage with the cover 2312 at two other discrete locations within the recessed channel 2308 and between the pair of locating lugs 2324. When the (multiple) locating lugs 2324 engage with the weight 2310, the weight 2310 is more tightly held within the cover 2312 to reduce or prevent the weight 2310 from rattling and further movement in the locked configuration. In addition, one or more locating lugs 2324 can define the location of the weight 2310 on the golf club head. In other aspects, the cover 2312 can have five spaced locating lugs 2324. Other numbers of locating lugs 2324 are also contemplated herein. It should also be understood that in other examples, a locating lug 2324 can be provided for each discrete location of the weight 2310 as desired or required.

[0247] In this example, the counterweight 2310 is slidably engaged with the body 2304 within the recessed channel 2308. The body 2304 includes a partial wall 2328 disposed within the recessed channel 2308. The partial wall 2328 extends from the bottom of the recessed channel 2308, and the counterweight 2310 includes a recess 2330 shaped and dimensioned to receive at least a portion of the partial wall 2328. By slidably engaging the partial wall 2328 and the recess 2330 of the counterweight 2310, the counterweight 2310 does not move with the cover 2312 when the cover is moved toward the unlocked configuration. This retention of the counterweight 2310 within the recessed channel 2308 enables the locating lugs 2324 of the cover 2312 to disengage from the counterweight 2310 and allows the counterweight 2310 to slide and change position. Additionally, when the cover 2312 is in the unlocked configuration, the orientation of the weight 2310 within the recessed channel 2308 can be maintained by the partial wall 2328 so that the weight 2310 can be more easily slid to a different position.

[0248] Fig.62 is a schematic perspective view of another testing machine 2400 having another counterweight assembly 2402 . Figures 63A to 63E The counterweight 2410 is in various positions, along Fig.62 A cross-sectional view of the counterweight assembly 2402 taken along line 63-63 in FIG. Fig.64 It is along Fig.62 Another cross-sectional view of the weight assembly 2402 taken along line 64-64 in FIG. Figure 62 to Figure 64 And similar to the above Figure 59 to Figure 61In the example described in the foregoing, a test machine 2400 represents a club head, which can be any type of club head described herein as desired or required, and in one aspect, a weight assembly 2402 is disposed on the skirt of the club head and at the rear perimeter where the sole and the crown are coupled together. The test machine 2400 includes a body 2404 representing a club head, and a bracket 2407, the body 2404 having an outer surface 2406. A recessed channel 2408 is defined in the outer surface 2406 of the body 2404. The weight assembly 2402 includes a weight 2410 at least partially disposed within the channel 2408 and configured to slide therein, a cover 2412 extending at least partially over the channel 2408, and a fastener 2414 configured to couple the cover 2412 to the body 2404. The cover 2412 has a first end 2416 and an opposite second end 2418. The fastener 2414 is coupled to the first end 2416 of the cover 2412 (e.g., via a locking washer) and is used to attach the cover 2412 to the body 2404. The second end 2418 of the cover 2412 includes a protrusion 2420. The protrusion 2420 of the second end 2418 is configured to engage with a corresponding cavity 2422 defined at the end of the recessed channel 2408 and secure the second end 2418 to the body 2404.

[0249] In this example, to help position the counterweight 2410 at a preselected position within the recessed channel 2408, the body 2404 includes at least one locating lug 2424 disposed within the recessed channel 2408. In one aspect, the locating lug 2424 extends from a rear wall of the recessed channel 2408 relative to the outer surface 2406. In another aspect, the locating lug 2424 is substantially symmetrical, having two similarly angled sides. The counterweight 2410 includes a corresponding hollow portion 2426 that is shaped and sized to receive at least a portion of the locating lug 2424. Additionally, in this example, the counterweight 2410 has an inclined surface 2432 at each end proximate the side of the hollow portion 2426. The inclined surfaces 2432 are similar to one another and are configured to engage with the inclined sides of the locating lug 2424. As shown in FIG. Figures 63A to 63EAs shown, the cover 2412 has three spaced apart locating lugs 2424 so that the weight 2410 can be selectively positioned at five discrete locations within the recessed channel 2408. Other numbers of locating lugs 2424 are also contemplated herein. The locating lugs 2424 are unevenly spaced apart in the heel-toe direction of the club head and have two different spacing distances. In this example, the locating lugs 2424 near the fastener 2414 are spaced farther from the middle locating lugs 2424 than the locating lugs 2424 near the protrusion 2420. In one aspect, the spacing between the fastener locating lugs 2424 and the middle locating lugs 2424 is approximately twice the spacing between the protrusion locating lugs 2424 and the middle locating lugs 2424. Additionally, in some examples, the locating lugs 2424 can be generally conical.

[0250] from Fig.63A Initially, the counterweight 2410 is disposed adjacent to the fastener 2414, and the hollow portion 2426 engages with the locating lugs 2424 adjacent to the fastener 2414. Thus, a portion of the counterweight 2410 is positioned on either side of the locating lugs 2424. The counterweight assembly 2402 is in a locked configuration such that the position of the counterweight 2410 relative to the body 2404 is fixed. In some aspects, the distal portion of the counterweight 2410 can be positioned directly against a portion of one end wall of the recessed channel 2408 and / or a portion of the cover 2412 coupled to the fastener 2414. Next, move to Fig.63B , the weight assembly 2402 can be moved to an unlocked configuration (e.g., lifting the cover 2412 at least partially out of the recessed channel 2408 to enable sliding movement of the weight 2410) to reposition the weight 2410 and adjust the CG and / or MOI of the club head. Once the weight 2410 is repositioned, the weight assembly 2402 can be moved to a locked configuration (as shown) to secure the position of the weight 2410. In this position, the weight 2410 is disposed between the two locating lugs 2424, so that the hollow portion 2426 does not have a locating lug 2424 received therein. Instead, the inclined surface 2432 engages with the corresponding locating lug 2424.

[0251] exist Fig.63C In the middle, the hollow portion 2426 of the counterweight 2410 engages with the middle positioning lug 2424. In this position, an inclined surface 2432 also engages with the positioning lug 2424 near the protrusion 2420. Fig.63D In the middle, the hollow portion 2426 of the counterweight 2410 engages with the positioning lug 2424 near the protrusion 2420. In this position, an inclined surface 2432 engages with the middle positioning lug 2424. Finally, in Fig.63EIn the embodiment of the present invention, the weight 2410 is disposed near the protrusion 2420 and between the locating lugs 2424 and the end wall of the recessed channel 2408. The hollow portion 2426 has no locating lugs 2424 received therein and an inclined surface 2432 engages with the locating lugs 2424 near the protrusion 2420. In this example, the distal portion of the weight 2410 can be positioned directly against a portion of an end wall of the recessed channel 2408 and / or a portion of the cover 2412 near the protrusion 2420. When the locating lugs 2424(s) engage with the weight 2410, the weight 2410 is more tightly held within the recessed channel 2408 to reduce or prevent rattling and further movement of the weight 2410 in the locked configuration. In addition, one or more locating lugs 2424 can define the position of the weight 2410 on the golf club head. In this example, by displacing the locating lugs 2424 near the protrusions 2420 inwardly, the counterweight 2410 can more easily slide between all positions without binding. It should be understood that the spacing of the locating lugs 2424 can be any other configuration as required or desired. For example, the recessed channel 2408 can have five spaced locating lugs 2424 so that in each position, the hollow portion 2426 of the counterweight 2410 engages with the locating lugs 2424. In other examples, three similarly spaced locating lugs 2424 can be used.

[0252] In addition, the counterweight 2410 is slidably engaged with the cover 2412. The cover 2412 includes a flange 2428 extending from the interior of the cover 2412, and the counterweight 2410 includes a groove 2430 shaped and sized to receive at least a portion of the flange 2428. By slidably engaging the flange 2428 and the groove 2430 of the counterweight 2410, the counterweight 2410 is configured to move with the cover 2412 when the cover 2412 moves toward the unlocked configuration. This movement of the counterweight 2410 enables the counterweight 2410 to disengage from the locating lug 2424 and allows the counterweight 2410 to slide and change position.

[0253] Fig.65 is a partial perspective view of an exemplary recessed channel 2500 within a body 2502 of a testing machine. Fig.66 is another partial perspective view of the recessed channel 2500. Fig.65 and Fig.66, body 2502 is schematically shown and the testing machine represents a club head, which can be any type of club head described herein as required or desired. The recessed channel 2500 is configured to receive a slidable weight 2504, and the cover (not shown) is configured to selectively hold the weight 2504 in different positions. The cover is coupled to the body 2502 by a fastener (not shown) defining a fastener axis. The recessed channel 2500 includes a chamber 2506, which is sized and shaped to receive a corresponding protrusion (not shown) of the cover. The chamber 2506 is defined at the end of the recessed channel 2500 opposite the fastener position so that both ends of the cover engage with the body 2502 and increase the retention force of the weight 2504.

[0254] In this example, the recessed channel 2500 includes a protrusion 2508 proximate to the chamber 2506. The protrusion 2508 extends into the recessed channel 2500 and is configured to engage with the cover at a corresponding conduit (not shown). Therefore, when the cover is moved toward an unlocked configuration that allows the counterweight 2504 to slide within the recessed channel 2500, the end of the cover opposite the fastener remains at least partially engaged with the body 2502 to reduce or prevent the end of the cover from becoming loose relative to the body 2502. The protrusion 2508 is elongated in a direction substantially parallel to the axis of the fastener to achieve the movement of the cover described herein. The protrusion 2508 can be as shown in FIG. Fig.65 As shown, it is positioned at the top wall of the recessed channel 2500, as shown in FIG. Fig.66 As shown positioned at the bottom wall of the recessed channel 2500 or both.

[0255] Fig.67 is a schematic perspective view of another testing machine 2600 having another counterweight assembly 2602 . Fig.68 It is along Fig.67 67 - 67 of FIG. 2 is a cross-sectional view of the counterweight assembly 2602 in the first configuration. Fig.69 It is along Fig.67 A cross-sectional view of the weight assembly 2602 in the second configuration taken along line 67-67 in FIG. Figure 67 to Figure 69 And similar to the above Figure 59 to Figure 64In the example described in , the test machine 2600 represents a club head, which can be any type of club head described herein as desired or required, and in one aspect, a weight assembly 2602 is disposed on the skirt of the club head and at the rear perimeter where the sole and the crown are coupled together. The test machine 2600 includes a body 2604 representing a club head, and a bracket 2607, the body 2604 having an outer surface 2606. A recessed channel 2608 is defined in the outer surface 2606 of the body 2604. However, in this example, the weight assembly 2602 includes a cover 2610 that is configured to be selectively oriented within the recessed channel 2608 and fixed to the body 2604 to at least partially define the weight position of the club head and adjust the CG and MOI of the club head.

[0256] In this example, the weight assembly 2602 includes a cover 2610 that is removably coupled to the body 2604 and at least partially within the recessed channel 2608. The cover 2610 has a first end 2612 and an opposing second end 2614. A fastener 2616 (e.g., via a lock washer) is mounted on the first end 2612 of the cover 2610 and is configured to be coupled to the body 2604. Additionally, a first weight 2618 is disposed at the first end 2612 of the cover 2610. In this example, the first weight 2618 itself defines the first end 2612 of the cover 2610 and is removable from the second end 2614 of the cover 2610, such that weights 2618 of different masses are interchangeable and can be formed into the cover 2610 as desired or needed. The second end 2614 of the cover 2610 includes a protrusion 2620 extending therefrom.

[0257] Each end of the recessed channel 2608 has a cavity 2622 and a fastener receiver 2624. The cavity 2622 is configured to engage with the protrusion 2620 of the cover 2610 and the fastener 2616 is configured to couple to the fastener receiver 2624. By making the recessed channel 2608 symmetrical at each end, the cover 2610 can be selectively coupled to the body 2604 so that the first weight 2618 can be in a first configuration ( Fig.68 shown) or the second configuration ( Fig.692604). In a first configuration, the first end 2612 of the cover 2610 is disposed on the heel side of the club head so that the first weight 2618 is positioned toward the heel side of the body 2604. In this configuration, the fastener 2616 is secured to the fastener receiver 2624 on the heel side, and the protrusion 2620 of the cover 2610 engages with the cavity 2622 on the toe side. This leaves the fastener receiver 2624 on the toe side and the cavity 2622 on the heel side unused by the cover 2610. In contrast, in a second configuration, the first end 2612 of the cover 2610 is disposed on the toe side of the club head so that the first weight 2618 is positioned toward the toe side of the body 2604. In this configuration, the fastener 2616 is secured to the fastener receiver 2624 on the toe side, and the protrusion 2620 of the cover 2610 engages with the cavity 2622 on the heel side. This leaves the heel-side fastener receiver 2624 and the toe-side cavity 2622 unused by the covering 2610. In this example, the covering 2610 has a dog-bone type shape so that the position within the recessed channel 2608 can be switched as desired or needed.

[0258] Additionally or alternatively, the second weight 2626 can be coupled to a corresponding weight chamber 2628 defined in the body 2604 and within the recessed channel 2608. The weight chamber 2628 is positioned at both ends of the recessed channel 2608 proximate to the fastener receiver 2624 and is covered by the cover 2610 when the cover 2610 is coupled to the body 2604. Thus, the second weight 2626 is secured within the weight chamber 2628 by the cover 2610 and is indirectly retained by the fastener 2616 of the weight assembly 2602. In one aspect, the second weight 2626 can be at least partially screwed into the weight chamber 2628. It should be understood that the location and use of the second weight 2626 does not necessarily need to correspond to the second weight chamber 2628. Fig.68 and Fig.69 2610. For example, a second weight 2626 can be used opposite the first weight 2618 and at least partially held by the second end 2614 of the cover 2610. In another example, only the first weight 2618 and no second weight 2626 can be utilized. In yet another example, a pair of second weights 2626 can be used in a pair of weight chambers 2628. By using more than one weight 2618, 2626, the CG and MOI of the club head can be more finely adjusted as desired or needed.

[0259] Fig.70 is a schematic perspective view of another testing machine 2700 having another counterweight assembly 2702 . Fig.71 is a partial cross-sectional view of the counterweight assembly 2702 in an unlocked configuration. Fig.72is a partial cross-sectional view of the counterweight assembly 2702 in the locked configuration. Fig.70 and Fig.72 And similar to the above Figure 59 to Figure 64 and Figure 67 to Figure 69 In the example described in the foregoing, a testing machine 2700 represents a club head, which can be any type of club head described herein as desired or required, and in one aspect, a weight assembly 2702 is disposed on the skirt of the club head and at the rear perimeter where the sole and the crown are coupled together. The testing machine 2700 includes a body 2704 representing a club head, the body 2704 having an outer surface 2706. A recessed channel 2708 is defined in the outer surface 2706 of the body 2704. However, in this example, the weight assembly 2702 includes a cover 2710 pivotally coupled to the body 2704 and a slidable weight 2712 for adjusting the CG and MOI of the club head. In one aspect, the cover 2710 is lighter in density than the weight 2712, so that a greater amount of mass can be used to manipulate the CG and MOI.

[0260] In this example, the cover 2710 has a first end 2714 and an opposite second end 2716. A fastener 2718 is mounted on the first end 2714 of the cover 2710 (e.g., via a locking washer) and is configured to secure the first end 2714 to the body 2704 of the club head. The second end 2716 of the cover 2710 is pivotally coupled to the body 2704. The weight 2712 is slidably coupled to the cover 2710 and is movable between the first end 2714 and the second end 2716. In operation, the cover 2710 can be in at least a locked configuration and an unlocked configuration ( Fig.70 2708) between the first end 2714 and the second end 2716 of the cover 2710. In the locked configuration, the fastener 2718 secures the first end 2714 of the cover 2710 to the body 2704, and the counterweight 2712 is at least partially disposed within the recessed channel 2708 and retained therein by the cover 2710. The position of the counterweight 2712 within the recessed channel 2708 between the first end 2714 and the second end 2716 of the cover 2710 is thereby indirectly maintained by the fastener 2718. In the unlocked configuration, the first end 2714 of the cover 2710 is pivoted out of the recessed channel 2708 to allow the counterweight 2712 to be repositioned (e.g., slid along the cover 2710) as desired or needed. Fig.70 2712 and moves with the cover 2710.

[0261] The second end 2716 of the cover 2710 may include a hook 2720 that pivotally engages with a post 2722 in the body 2704. The hook 2720 includes a hard stop 2724 that is configured to engage with the body 2704 in an unlocked position to define a pivot limit of the cover 2710. The hard stop 2724 may taper at one end so that the second end 2716 of the cover 2710 is easier to insert into the body 2704 during assembly. In other examples, the second end 2716 of the cover 2710 may be pivotally coupled to the body 2704 via a pin connection (not shown). The recessed channel 2708 may include one or more locating lugs 2726 to help position the counterweight 2712 as desired or needed. In some aspects, the counterweight 2712 may be positioned at two, four, or six discrete positions at least partially defined by the locating lugs 2726. In this example, the counterweight 2712 is slidably engaged with the cover 2710 and pivots therewith. In other examples, the counterweight may be slidably engaged with the body so that it does not pivot with the cover. Fig.73 Describe this example.

[0262] Fig.73 It can be used with the test machine 2700 ( Fig.70 2752). In this example, the counterweight assembly 2750 includes a pivotable cover 2752 and a slidable counterweight 2754. However, in this example, the counterweight 2754 is at least partially slidably engaged within the recessed channel 2708 of the body 2704 so that the counterweight 2754 does not pivot with the cover 2752. The counterweight assembly 2750 includes a guide rail 2756 that secures the counterweight 2754 to the body 2704 while still allowing the counterweight 2754 to slide. Fig.73 In the locked configuration shown, the cover 2752 secures the position of the weight 2754 relative to the body 2704 via the guide rails 2756 .

[0263] Fig.74 is an exploded perspective view of another test machine 2800 having another counterweight assembly 2802. Figure 59 to Figure 64 and Figures 67 to 72In the example described in , the test machine 2800 represents a club head, which can be any type of club head described herein as desired or required, and in one aspect, a weight assembly 2802 is disposed on the skirt of the club head and at the rear periphery where the sole and the crown are coupled together. The test machine 2800 includes a body 2804 representing a club head, and a bracket 2807, the body 2804 having an outer surface 2806. A recessed channel 2808 is defined in the outer surface 2806 of the body 2804. However, in this example, the weight assembly 2802 includes a cover 2810, which is coupled to the body 2804 by a fastener 2812, and the fastener 2812 is disposed near the center of the cover 2810. The cover 2810 is configured to secure a slidable weight 2814 while enabling the position of the weight 2814 to be selectively adjusted. The counterweight 2814 has an elongated U-shape to accommodate the centrally mounted fastener 2812, and a portion of the counterweight 2814 can be disposed on either side of the fastener 2812. The cover 2810 has a protrusion 2816 at each end to engage with the recessed channel 2808. The recessed channel 2808 includes a locating lug 2818 to help locate the counterweight 2814 and a recess 2820 to receive at least a portion of a position indicator 2822 of the counterweight 2814.

[0264] Fig.75 is a perspective view of a sole 2902 of another golf club head 2900 having another weight assembly 2904 . Fig.76 It is along Fig.75 A cross-sectional view of the counterweight assembly 2904 taken along line 76-76 in FIG. Fig.77 It is along Fig.75 A cross-sectional view of the weight assembly 2904 taken along line 77-77 in FIG. Figure 75 to Figure 77, the golf club head 2900 is a metal wood type golf club head having a body 2906 including a ball striking face 2908 having a lower edge 2910 and an upper edge (not shown) extending between a toe 2912 and a heel 2914. A sole 2902 extends from the lower edge 2910 on the bottom side of the club head 2900, and a crown 2916 extends from the upper edge on the top of the club head 2900. The sole 2902, the ball striking face 2908, and the crown 2916 are coupled together to define an outer surface 2918 of the body 2906, wherein an inner cavity 2920 is formed inside the body 2906. A hosel 2922 is disposed at the heel 2914 and is configured to be coupled to a shaft (not shown). The functions of the components (e.g., sole, ball striking face, crown, hosel, etc.) of the metal wood type club head 2900 are similar to the functions of the components described above. The body 2906 can be formed into any type of club head as desired or required, such as a fairway metal type club head, an iron type club head, or a hybrid type club head. In addition, the features of the weight assembly 2904 described below can be used in addition or alternatively for any type of club head described herein as desired or required.

[0265] In this example, a recessed channel 2924 is defined within the sole 2902 of the body 2906 of the club head 2900. The channel 2924 extends in the toe 2912-heel 2914 direction so that the CG and MOI of the club head 2900 can be adjusted for a right-left bias. In one aspect, the recessed channel 2924 can define a transition region where the sole 2902 and the crown 2916 are coupled together opposite the ball striking face 2908, and the transition region is referred to as the skirt of the club head 2900. Thus, the recessed channel 2924 and the weight assembly 2904 are disposed at the rear periphery of the club head 2900 and proximate to where the sole 2902 and the crown 2916 are coupled together. In one aspect, the recessed channel 2924 and the weight assembly 2904 are disposed substantially at the rear periphery portion of the club head 2900 opposite the ball striking face 2908.

[0266] The weight assembly 2904 includes a slidable weight 2926 at least partially disposed within the recessed channel 2924 and configured to slide therein, a cover 2928 extending at least partially above the channel 2924 and adapted to releasably secure the weight 2926 within the recessed channel 2924, and a fastener 2930 configured to couple the cover 2928 to the body 2906. The fastener 2930 indirectly retains the weight 2926 in the recessed channel 2924 via the cover 2928 and enables the weight 2926 to be used to adjust the CG and MOI of the club head. Similar to the examples described above, the weight assembly 2904 is configured to be in at least a locked configuration (in a locked configuration). Fig.79 and further described below) and an unlocked configuration (in Fig.80 2924 and further described below). In the locked configuration, the cover 2928 is at least partially disposed within the recessed channel 2924, and the counterweight 2926 is fixed within the channel 2924 in a manner that restricts its movement. In the unlocked configuration, the fastener 2930 enables the cover 2928 to move along the fastener axis 2932, thereby releasing the counterweight 2926 and allowing the counterweight 2926 to slide relative to the cover 2928 and the body 2906. In addition, in this example, the cover 2928 can also be at least partially moved relative to the recessed channel 2924 and the body 2906 toward the Fig.81 The counterweight removal configuration shown in and described further below rotates.

[0267] The body 2906 includes a partial wall 2934 disposed within the recessed channel 2924. The partial wall 2934 extends from the bottom of the recessed channel 2924, and the counterweight 2926 includes a recess 2936 shaped and dimensioned to receive at least a portion of the partial wall 2934. By slidably engaging the partial wall 2934 and the recess 2936 of the counterweight 2926, the counterweight 2926 does not move with the cover 2928 when the cover is moved toward the unlocked configuration. To help position the counterweight 2926 at a preselected position within the recessed channel 2924, the cover 2928 includes at least one locating lug 2938 extending from an inner surface of the cover 2928. The counterweight 2926 includes a corresponding hollow portion 2940 shaped and dimensioned to receive at least a portion of the locating lug 2938. Thus, when the counterweight 2926 is engaged with the cover 2928, the counterweight 2926 is more tightly held within the cover 2928 to reduce or prevent rattling and further movement of the counterweight 2926 in the locked configuration. In this example, the inner surface of the cover 2928 includes an inclined surface 2942 that is configured to engage with a corresponding inclined surface 2944 on the counterweight 2926. The inclined surfaces 2942, 2944 taper in one direction such that they are greater in height above the bottom wall of the recessed channel 2924 and increase in a direction away from the partial wall 2934. This configuration pushes the counterweight 2926 in a direction toward the top wall of the recessed channel 2924 and induces a compressive force on the counterweight 2926 between the cover 2928 and the recessed channel 2924 to secure the counterweight 2926 in the recessed channel 2924.

[0268] In this example, the cover 2928 is formed of a first portion 2946 and a second portion 2948. The fastener 2930 is engaged with the first portion 2946 via a locking washer (not shown) so that the entire cover 2928 can move linearly along the fastener axis 2932. The second portion 2948 has a first end 2950 rotatably coupled to the first portion 2946 and an opposite second end 2952 having a protrusion 2954. Similar to other examples described herein, the protrusion 2954 is configured to engage with a corresponding cavity 2956 defined in the body 2906 and within the recessed channel 2924, so that when the counterweight assembly 2904 is in the locked configuration, the second end 2952 more tightly secures the counterweight 2926 within the recessed channel 2924. By enabling the second portion 2948 of the cover 2928 to rotate relative to the first portion 2946 when the second end portion 2952 is not engaged with the recessed channel 2924, access to the counterweight 2926 is increased, thereby allowing for adjustment as desired or required and as appropriate. Fig.81 The weight 2926 is shown completely removed from the club head 2900.

[0269] Fig.78 It is the counterweight assembly 2904 ( Figure 75 to Figure 77 2930). The cover 2928 includes a first portion 2946 coupled to the fastener 2930 and a second portion 2948. In this example, the first portion 2946 and the second portion 2948 can be discrete and can be separated from each other. In other examples, the first portion 2946 and the second portion 2948 can be fixed to each other, but can still rotate relative to each other. The first portion 2946 has a first end 2958, which has a hole shaped and sized to receive and couple to the fastener 2930. The hole extends in a direction along the fastener axis 2932. The first portion 2946 also has an opposite second end 2960, which is configured to be rotatably coupled to the second portion 2948. The second end 2960 has a cylinder 2962, which is spaced apart from the first end 2958 and extends in a direction substantially orthogonal to the fastener axis 2932. Cylinder 2962 rotatably engages second portion 2948 and defines an axis of rotation for rotation of second portion 2948 relative to first portion 2946 .

[0270] The second portion 2948 extends between a first end 2950 and a second end 2952. The first end 2950 has a hook portion 2964 that is rotatably engaged with the cylinder 2962 of the first portion 2946 such that the axis of rotation of the second portion 2948 is substantially orthogonal to the fastener axis 2932. In one aspect, the outer surface 2966 of the hook portion 2964 is circular such that the second portion 2948 can rotate about the cylinder 2962. The hook portion 2964 is at least partially formed by an arm 2968 that is elongated and engages the sidewall of the hole of the first portion 2946 such that the rotation of the second portion 2948 is partially limited. This configuration allows the second portion 2948 to move with the first portion 2946 as the first portion 2946 moves linearly along the fastener axis 2932. In some examples, the hook 2964 can snap fit around the cylinder 2962 so that a separation force is required to separate the two parts 2946, 2948. The second end 2952 of the second part 2948 includes a protrusion 2954. A cutout 2970 is formed extending between the first end 2950 and the second end 2952 of the second part 2948, and the cutout is sized and shaped to at least partially receive the counterweight 2926 ( Fig.76 and Fig.77 29). In the cutout 2970, a positioning lug 2938 and an inclined surface 2942 of the cover 2928 are formed.

[0271] Fig.79 2904 is a perspective view of the weight assembly 2904 in a locked configuration. In the locked configuration, the fastener 2930 is fastened to the body 2906 of the club head so that the cover 2928 engages with the body 2906 and at least partially engages within the recessed channel 2924 to secure the position of the weight 2926 within the recessed channel 2924. In the locked configuration, the fastener 2930 indirectly holds the weight 2926 in the recessed channel 2924 via the cover 2928. The first end of the first portion 2946 of the cover 2928 is secured to the body 2906 by the fastener 2930. The second end of the second portion 2948 of the cover 2928 is secured to the body 2906 by the protrusion 2954 ( Fig.78 2948) is fixed to the body 2906, thereby preventing the second part 2948 from rotating relative to the first part 2946. Between the first part 2946 and the second part 2948, the hook 2964 and the cylinder 2962 ( Fig.78 The engagement limiting portions 2946, 2948 of the counterweight 2926 are separated from each other in the locked configuration. In order to release the counterweight 2926 from its fixed position, the fastener 2930 is used to move the counterweight assembly 2904 toward the direction referred to below. Fig.80 Described unlocking construction moves.

[0272] Fig.802904 is a perspective view of the weight assembly 2904 in an unlocked configuration. In the unlocked configuration, the fastener 2930 is loosened relative to the body 2906 of the club head. When the fastener 2930 is loosened, the cover 2928 is moved along the fastener axis 2932 ( Fig.78 2926 and at least partially rise out of the recessed channel 2924. In the unlocked configuration, the cover 2928 releases the counterweight 2926 so that the counterweight 2926 can slide within the recessed channel 2924. The first end of the first portion 2946 of the cover 2928 is held fixed to the body 2906 by the fastener 2930 in the unlocked configuration.

[0273] In some examples, the second end of the second portion 2948 of the cover 2928 can be unlocked by the protrusion 2954 ( Fig.78 2948 is partially engaged with the body 2906 so that the rotation of the second portion 2948 relative to the first portion 2946 is still restricted and the counterweight 2926 cannot be removed from the recessed channel 2924. However, the counterweight 2926 can still be slid and repositioned as required or desired. In this example, in order to disengage the protrusion 2954 from the recessed channel 2924, the fastener 2930 is used to further raise the cover 2928 along the fastener axis 2932 so as to position the cover 2928 in the position referred to below. Fig.81 In other examples, in the unlocked configuration, the cover 2928 is raised so that the protrusion 2954 is disengaged from the recessed channel 2924 without any further movement along the fastener axis 2932. In this example, the cover 2928 is positioned so that it can be moved toward the position described below with reference to Fig.81 The counterweight removal configuration is moved without further movement of the fastener 2930 .

[0274] Fig.81 2924, so that the projection 2954 of the second portion 2948 is disengaged from the chamber 2956 defined within the recessed channel 2924. This disengagement enables the second portion 2948 of the cover 2928 to be opened toward the weight removal configuration by rotating relative to the first portion 2946 in a direction outward relative to the body 2906 of the club head. The fastener 2930 is not required for opening the second portion 2948 of the cover 2928. The rotation axis about which the second portion 2948 rotates is aligned with the fastener axis 2932 ( Fig.78By opening the cover 2928, the counterweight 2926 can be completely removed from the recessed channel 2924 as desired or required. In addition, when the second portion 2948 is rotated relative to the first portion 2946 of the cover 2928, the engagement of the hook 2964 and the cylinder 2962 ( Fig.78 ) The limiting portions 2946, 2948 are separated from each other in the counterweight removal configuration.

[0275] Fig.82 is a perspective view of a sole 3002 of another golf club head 3000 having another weight assembly 3004 . Fig.83 It is along Fig.82 A cross-sectional view of the weight assembly 3004 taken along line 83-83 in FIG. Fig.82 and Fig.83 , golf club head 3000 includes body 3006, ball striking face 3008, lower edge 3010, upper edge (not shown), toe 3012, heel 3014, crown 3016, outer surface 3018, inner cavity 3020 and hosel 3022, which functions are similar to the functions of the components described above. Body 3006 can form any type of club head described herein, such as metal wood type club head, fairway metal type club head, iron type club head or hybrid club head as required or needed. In addition, the features of weight assembly 3004 described below can be supplemented or replaced as required or needed for any type of club head described herein.

[0276] In this example, the recessed channel 3024 is defined in the sole 3002 and / or the transition region (e.g., skirt) where the sole 3002 and the crown 3016 are coupled together. The channel 3024 extends in the toe 3012-heel 3014 direction so that the CG and MOI of the club head 3000 can be adjusted for right-left bias. In one aspect, the recessed channel 3024 and the weight assembly 3004 are substantially disposed at a rear perimeter portion of the club head 3000 opposite the ball striking face 3008.

[0277] The weight assembly 3004 includes a slidable weight 3026 at least partially disposed within the recessed channel 3024 and configured to slide therein, a cover 3028 extending at least partially above the channel 3024 and adapted to releasably secure the weight 3026 within the recessed channel 3024, and a fastener 3030 configured to couple the cover 3028 to the body 3006. Similar to the examples described above, the weight assembly 3004 is configured to be in at least a locked configuration (in a locked configuration). Fig.85 and further described below) and an unlocked configuration (in Fig.863024 and further described below). In the locked configuration, the cover 3028 is at least partially disposed within the recessed channel 3024, and the counterweight 3026 is fixed within the channel 3024 in a manner that restricts its movement. In the unlocked configuration, the fastener 3030 enables the cover 3028 to move along the fastener axis 3032, so that the counterweight 3026 can slide relative to the cover 3028 and the body 3006. In addition, in this example, the cover 3028 can also be at least partially moved relative to the recessed channel 3024 and the body 3006 toward the Fig.87 In addition, the body 3006 includes a partial wall 3034 that is slidably engaged with the counterweight 3026, and the cover 3028 includes at least one positioning lug 3036 to facilitate the positioning of the counterweight 3026.

[0278] Fig.84 It is the counterweight assembly 3004 ( Fig.82 and Fig.83 3028 of the cover 3028 shown in FIG. Fig.83 , the cover 3028 has a first end 3038 and an opposing second end 3040. The second end 3040 has a protrusion 3042 similar to other examples herein, which is configured to engage with a corresponding chamber 3044 defined in the body 3006 and within the recessed channel 3024. Therefore, when the counterweight assembly 3004 is in a locked configuration, the second end 3040 more tightly secures the counterweight 3026 to the body 3006. In some examples, a channel 3046 is defined in the cover 3028, which is configured to engage with a corresponding protrusion (not shown) extending from the recessed channel 3024. This channel and protrusion feature facilitates the above reference to Fig.65 and Fig.66 The second end 3040 of the cover 3028 is further depicted as slidingly engaged with the recessed channel 3024 in the body 3006. The first end 3038 of the cover 3028 is engaged with the enlarged head 3048 of the fastener 3030, and the fastener 3030 is free to rotate relative to the cover 3028. In this example, the fastener 3030 is not coupled to the cover 3028 by a locking washer, and the fastener 3030 is devoid of a locking washer.

[0279] The first end 3038 of the cover 3028 has a retainer 3050 defined on the inner surface of the cover 3028, which is shaped and dimensioned to receive the enlarged head 3048 of the fastener 3030. The retainer 3050 has an inner surface 3052 that is larger than the enlarged head 3048 so that the enlarged head 3048 can rotate freely within the retainer 3050. In this example, the inner surface 3052 has a first side wall 3054 that is substantially parallel to the fastener axis 3032 and an opposing second side wall 3056 that is tapered relative to the fastener axis 3032. In one aspect, the second side wall 3056 is oriented to increase the gap between the first side wall 3054 and the second side wall 3056 in a direction toward the outer surface of the cover 3028. When the fastener 3030 is tightened or loosened from the body 3006 of the club head, the enlarged head 3048 is positioned against the first side wall 3054 of the inner surface 3052, such as Fig.83 As shown. This configuration is aligned with the cover 3028 along the fastener axis 3032 so that the cover 3028 can move linearly along the fastener axis 3032 and engage or disengage with the protrusion 3042 relative to the cavity 3044. However, when the fastener 3030 is loosened from the body 3006 (e.g., the enlarged head 3048 is raised from the body 3006 along the fastener axis 3032) and the cover 3028 is disengaged from the body 3006, the second end 3040 of the cover 3028 can also be tilted away from the body 3006 by the orientation of the second side wall 3056. This movement of the cover 3028 enables the cover 3028 to at least partially move around the fastener axis 3032 toward the cavity 3044. Fig.87 The counterweight removal configuration shown in and described further below rotates.

[0280] The inner surface 3052 of the retainer 3050 also includes an axial outer wall 3058 that is substantially orthogonal to the fastener axis 3032. The axial outer wall 3058 constrains the enlarged head 3048 within the retainer 3050 in an axial direction along the fastener axis 3032, thereby causing corresponding linear movement on the cover 3028 when the enlarged head 3048 is loosened and raised relative to the body 3006 of the club head, even without the use of a locking washer. The axial outer wall 3058 can include an aperture 3060 to allow a tool (not shown) to access the enlarged head 3048. In one aspect, the diameter of the aperture 3060 is smaller than the diameter of the enlarged head 3048. The opposing inner axial wall 3062 is configured to at least partially hook around the enlarged head 3048, so that when the enlarged head 3048 is tightened and lowered relative to the body 3006, corresponding linear movement on the cover 3028 is caused even without the use of a locking washer. In addition, the retainer 3050 is a protruding component of the cover 3028 (e.g., through the axial inner wall 3062) that has an outer surface 3064 that extends circumferentially at least partially around the fastener axis 3032. Thus, the outer surface 3064 is curved and at least partially cylindrical. In one aspect, the outer surface 3064 is curved and extends at least 180° around the fastener axis 3032. When the cover 3028 is at least partially lifted out of the recessed channel 3024, the outer surface 3064 facilitates rotation of the cover 3028 relative to the body 3006.

[0281] In this example, the retainer 3050 is accessible from the top or bottom of the cover 3028 and allows the fastener 3030 to be at least partially inserted into the retainer 3050 (e.g., the enlarged head 3048). When the cover 3028 is coupled to the body 3006 by the fastener 3030 and is at least partially inserted into the recessed channel 3024, the retainer 3050 is at least partially inserted into the recessed channel 3024 because it is a protruding feature, thereby limiting or preventing the cover 3028 from separating from the enlarged head 3048 without completely pulling the retainer 3050 out of the recessed channel 3024.

[0282] Fig.85 3024 to secure the position of the weight 3026 in the recessed channel 3024. In the locked configuration, the fastener 3030 indirectly holds the weight 3026 in the recessed channel 3024 via the cover 3028. The first end of the cover 3028 is secured to the body 3006 by the fastener 3030. The second end of the cover 3028 is secured to the body 3006 by the protrusion 3042 ( Fig.83 3028) is fixed to the body 3006, thereby preventing the cover 3028 from rotating. In order to release the weight 3026 from its fixed position, the fastener 3030 accessed by the eyelet 3060 is used to turn the weight assembly 3004 toward the reference hereinafter. Fig.86 Described unlocking construction moves.

[0283] Fig.86 3004 is a perspective view of the weight assembly 3004 in an unlocked configuration. In the unlocked configuration, the fastener 3030 is loosened relative to the body 3006 of the club head. When the fastener 3030 is loosened, the cover 3028 is moved along the fastener axis 3032 ( Fig.83 3026 and is at least partially lifted out of the recessed channel 3024 by the fastener head engaging the axial outer wall of the retainer 3050. In the unlocked configuration, the cover 3028 releases the weight 3026 so that the weight 3026 can slide within the recessed channel 3024. In the unlocked configuration, the first end of the cover 3028 is held fixed to the body 3006 by the fastener 3030.

[0284] In some examples, the second end of the cover 3028 can remain partially engaged with the body 3006 by the protrusion 3042 in the unlocked configuration, so that the rotation of the cover 3028 is still restricted and the counterweight 3026 cannot be removed from the recessed channel 3024. However, the counterweight 3026 can still be slid and repositioned as required or needed. In this example, in order to disengage the protrusion 3042 from the recessed channel 3024, the fastener 3030 is used to further raise the cover 3028 along the fastener axis 3032 so as to position the cover 3028 in the unlocked configuration as described below. Fig.87 In other examples, in the unlocked configuration, the cover 3028 is raised so that the protrusion 3042 is disengaged from the recessed channel 3024 without any further movement along the fastener axis 3032. In this example, the cover 3028 is positioned so that it can be moved toward the position described below. Fig.87 The counterweight removal configuration is moved without further movement of the fastener 3030 .

[0285] Fig.873040 is a perspective view of the weight assembly 3004 in the weight removal configuration. In the weight removal configuration, the first end 3038 of the cover 3028 is at least partially lifted out of the recessed channel 3024, so that the protrusion 3042 of the second end 3040 is disengaged from the chamber 3044 defined in the recessed channel 3024. This disengagement enables the second end 3040 of the cover 3028 to be opened toward the weight removal configuration by tilting away from the body 3006 of the club head and rotating it about the fastener axis of the fastener 3030. For example, the fastener head is against the second side wall 3056 ( Fig.83 3024, and the second end 3040 can be rotated about the fastener 3030. By opening the cover 3028, the weight 3026 can be completely removed from the recessed channel 3024 as required or needed. In addition, the retainer 3050 ( Fig.83 3024) still at least partially protrudes into the recessed channel 3024 so that the cover 3028 cannot be completely removed from the body 3006 of the club head without further movement of the fastener 3030. This configuration enables both the cover 3028 and the fastener 3030 to remain coupled to the body 3006 in the weight removal configuration.

[0286] Fig.88 3104. The golf club head 3100 includes a body 3106, a ball striking face 3108, a lower edge 3110, an upper edge (not shown), a toe (not shown), a heel 3112, a crown 3114, an outer surface 3116, an inner cavity (not shown), and a hosel 3118, which functions similarly to the functions of the components described above. The body 3106 can be formed into any type of club head described herein, such as a metal wood type club head, a fairway metal type club head, an iron type club head, or a hybrid club head, as desired or required. In addition, the features of the weight assembly 3104 described below can be used in addition or alternatively to any type of club head described herein as desired or required.

[0287] In this example, the channel 3120 is defined by the body 3106 and the channel 3120 is a through opening extending through the body 3106 between the toe-side opening 3122 and the heel-side opening 3124. In some examples, the channel 3120 can be separated from the interior cavity of the body 3106 by a channel wall. In other examples, the channel 3120 can at least partially pass into the interior cavity of the body 3106. The channel 3120 can be disposed in the sole 3102 and / or in a transition region (e.g., a skirt) where the sole 3102 and the crown 3114 are coupled together. The channel 3120 extends in the toe-heel direction so that the CG and MO of the club head 3100 can be adjusted for a right-left bias. In one aspect, the channel openings 3122, 3124 are substantially disposed at the rear perimeter portion opposite the ball striking face 3108 of the club head 3100 and at the front-back centerline of the club head 3100.

[0288] The weight assembly 3104 includes a slidable weight 3126 slidably engaged with a cover 3128 and a fastener 3130 configured to couple the cover 3128 to the body 3106. The cover 3128 has a first end 3132 and an opposing second end 3134. The fastener 3130 is coupled to the first end 3132 (e.g., via a locking washer) and the cover 3128 extends in a direction along the fastener axis. The first end 3132 and the second end 3134 of the cover 3128 both have an outer surface that is shaped and sized to align with and not extend from the outer surface 3116 of the club head 3100 when secured to the outer surface 3116 of the club head 3100. Similar to the examples described above, the weight assembly 3104 is configured to be slidable in at least a locked configuration (not shown) and an unlocked configuration (not shown). Fig.88 3120). In the locked configuration, the cover 3128 is inserted into the channel 3120 so that the weight 3126 is completely disposed within the channel 3120 and within the body 3106 of the club head 3100. When the weight assembly 3104 is in the locked configuration, the position of the weight 3126 on the cover 3128 is fixed within the channel 3120. Thus, the fastener 3130 indirectly holds the weight 3126 in the channel 3120 via the cover 3128. In the unlocked configuration, the fastener 3130 enables the cover 3128 to be at least partially withdrawn from the channel 3120 and along the fastener axis so that the weight 3126 is at least partially removed from the channel 3120. When the weight 3126 is removed from the body 3106, the weight 3126 can slide relative to the cover 3128 to be removed and / or repositioned on the cover 3128. Thus, the position of the weight 3126 on the cover 3128 is adjustable so that the weight assembly 3104 is used to adjust the GC and MOI of the club head 3100.

[0289] In this example, the inner surface of the cover 3128 includes at least one locating lug 3136 spaced apart along the fastener axis. The counterweight 3126 includes one or more corresponding hollows 3138 shaped and sized to receive at least a portion of the locating lug 3136. Additionally, when the locating lug 3136 engages the hollows 3138, the counterweight 3126 is more tightly held by the cover 3128 to reduce or prevent rattling and further movement of the counterweight 3126 in the locked configuration. In one aspect, the cover 3128 can include a shelf 3140 that supports the counterweight 3126. When the counterweight assembly 3104 is moved to the unlocked configuration, the shelf 3140 allows the counterweight 3126 to be removed from the channel 3120.

[0290] In some examples, the first end 3132 of the cover 3128 can be at least partially engaged with the channel 3120 such that the cover 3128 is coupled to the body 3106 of the club head 3100 in the unlocked configuration. In other examples, the cover 3128 can be completely removed from the body 3106 of the club head 3100 as desired or required. By securing the slidable weight 3126 within the body 3106 of the club head 3100, the aerodynamic properties of the exterior surface 3116 of the club head 3100 can be improved.

[0291] Fig.89 3204, wherein the other weight assembly 3204 is in a locked configuration. The golf club head 3200 includes a body 3206, a ball striking face 3208, a lower edge 3210, an upper edge (not shown), a toe (not shown), a heel 3212, a crown 3214, an outer surface 3216, an inner cavity (not shown), and a hosel 3218, which functions similarly to the functions of the components described above. The body 3206 can be formed into any type of club head described herein, such as a metal wood type club head, a fairway metal type club head, an iron type club head, or a hybrid club head, as desired or required. In addition, the features of the weight assembly 3204 described below can be used in addition or alternatively to any type of club head described herein as desired or required.

[0292] In this example, the channel 3220 is defined by the body 3206 for supporting the weight assembly 3204. The channel 3220 may include a first channel 3222 and a second channel 3224 that are in communication with each other. The first channel 3222 is defined in the sole 3202 of the body 3206 and extends in the front-to-back direction of the club head 3200 having the ball striking face 3208, wherein the ball striking face 3208 is located at the front of the club head 3200. The second channel 3224 is defined in the sole 3202 and / or in a transition area (e.g., skirt) where the sole 3202 and the crown 3214 are connected together. The second channel 3224 extends in the toe-heel direction so that the CG and MOI of the club head 3200 can be adjusted for a right-left bias. In one aspect, the second channel 3224 is substantially disposed at a rear peripheral portion of the club head 3200 opposite to the ball striking face 3208. Thus, the first channel 3222 and the second channel 3224 are oriented in substantially orthogonal directions and on different planes of the club head 3200.

[0293] The weight assembly 3204 includes a slidable weight 3226 ( Fig.91 3226 is secured to the body 3206 of the club head 3200. Similar to the examples described above, the weight assembly 3204 is configured to be secured to the club head 3200 at least in part. Fig.89 The locking structure shown and Fig.90 3220 and further described below. In the locked configuration, the cover 3228 is at least partially disposed within the recessed channel 3220 and the weight 3226 is secured within the body 3206 of the club head 3200 in a manner that restricts its movement. In the unlocked configuration, the fastener 3230 releases the cover 3228 from the body 3206 so that the weight assembly 3204 can be moved toward the Fig.91 The counterweight adjustment configuration shown in and further described below moves. In the counterweight adjustment configuration, the position of the counterweight 3226 within the counterweight tray 3234 can be adjusted as required or needed.

[0294] In the locked configuration, the fastener protrusion 3232 and the weight tray 3234 are both positioned within the body 3206 of the club head 3200 so that they do not protrude and are aligned with the outer surface 3216 of the club head 3200. In addition, the weight 3226 is completely disposed within the body 3206 of the club head 3200 and is secured therein in the locked configuration. The fastener 3230 indirectly holds the weight 3226 in the recessed channel 3220 via the cover 3228 and allows the weight 3226 to be used to adjust the CG and MOI of the club head 3200.

[0295] Fig.90 is a perspective view of the counterweight assembly 3204 in an unlocked configuration. In the unlocked configuration, the fastener 3230 is loosened such that it is at least partially raised out of the first channel 3222 along the fastener axis. Because the fastener protrusion 3232 is coupled to the fastener 3230, the fastener protrusion 3232 is also at least partially raised out of the first channel 3222. In this example, the fastener 3230 is positioned toward the front of the first channel 3222. However, this movement of the fastener 3230 and the fastener protrusion 3232 does not correspond to the movement of the counterweight tray 3234 within the second channel 3224. Instead, once the counterweight assembly 3204 is in the unlocked configuration, the user can utilize the fastener protrusion 3232 to pull the counterweight tray 3234 at least partially out of the second channel 3224 and access the counterweight 3226, as shown. Fig.91 In the unlocked configuration, the weight 3226 can still be completely disposed within the body 3206 of the club head.

[0296] Fig.91 is a perspective view of the counterweight assembly 3204 in a counterweight adjustment configuration. Fig.92 It is along Fig.91 A cross-sectional view of the weight assembly 3204 taken along line 92-92 in FIG. Fig.91 and Fig.92 , the weight tray 3234 has a first end 3236 with a slot 3238, the size and shape of the slot 3238 being configured to receive the counterweight 3226 and allow the counterweight to be selectively positioned (e.g., by sliding) therein. The second end 3240 of the weight tray 3234 is threadedly engaged with the fastener 3230 so that the fastener 3230 can rotate relative thereto. A slot 3242 is defined between the first channel 3222 and the second channel 3224 so that the fastener 3230 can extend therebetween and couple with both the fastener protrusion 3232 and the weight tray 3234. The slot 3242 extends to the first channel 3222 in a similar front-to-back direction so that when the counterweight assembly 3204 is unlocked (e.g., the fastener protrusion 3232 is disengaged from the first channel 3222), the counterweight assembly 3204 can be moved linearly in a rearward direction toward the counterweight adjustment structure.

[0297] In operation, when the counterweight assembly 3204 is unlocked and then moved toward the counterweight adjustment configuration, the first end 3236 of the counterweight tray 3234 protrudes from the body 3206 so that the counterweight 3226 within the pocket 3238 is accessible and its position can be adjusted. In some examples, the counterweight 3226 can be completely removed from the counterweight assembly 3204 in the counterweight adjustment configuration as desired or required.

[0298] Fig.93 is a perspective view of a sole 3302 of another golf club head 3300 having another weight assembly 3304 . Fig.94 is a perspective view of the counterweight assembly 3304. Fig.93 and Fig.94 , golf club head 3300 includes body 3306, ball striking face 3308, lower edge 3310, upper edge (not shown), toe (not shown), heel 3312, crown 3314, outer surface 3316, inner cavity (not shown) and hosel 3318, which functions are similar to the functions of the components described above. Body 3306 can form any type of club head described herein, such as a metal wood type club head, a fairway metal type club head, an iron type club head or a hybrid club head as required or desired. In addition, the features of weight assembly 3304 described below can be used in addition or alternatively for any type of club head described herein as required or desired.

[0299] In this example, the recessed channel 3320 is defined in the sole 3302 and / or in a transition region (e.g., skirt) where the sole 3302 and the crown 3314 are coupled together. The channel 3320 extends in the toe-heel direction so that the CG and MOI of the club head 3300 can be adjusted for right-left bias. In one aspect, the recessed channel 3320 and the weight assembly 3304 are substantially disposed at a rear perimeter portion of the club head 3300 opposite the ball striking face 3308.

[0300] The weight assembly 3304 includes an insert 3322 that is configured to be inserted into the recessed channel 3320 and coupled to the body 3306 of the club head 3300. The insert 3322 has one or more weights coupled thereto. In this example, a first weight 3324 and a second weight 3326 are coupled to the insert 3322. The first weight 3324 can be a different mass than the second weight 3326. An actuator 3328 is also coupled to the insert 3322 and is disposed between the weights 3324, 3326. In this example, the actuator 3328 is rotatable relative to the insert 3322, has an enlarged head 3330 and a lead screw 3332. The enlarged head 3330 is captured within the insert 3322 and the lead screw 3332 extends in a direction away from the insert 3322. However, the actuator 3328 is not used to couple the weight assembly 3304 to the body 3306 of the club head 3300. Instead, the insert 3322 includes a locking member 3334 that is configured to selectively engage with the body 3306 of the club head 3300 and secure the weight assembly 3304 within the recessed channel 3320. The locking member 3334 engages the lead screw 3332 and has a pair of opposing ends 3336 that protrude from the insert 3322.

[0301] In operation, the weight assembly 3304 is configured to be in a locked configuration (in Fig.95 and further described below) and an unlocked configuration (in Fig.96 3326 are moved between the recessed channel 3320 and the weight assembly 3304. In the locked configuration, the insert 3322 is secured within the recessed channel 3320 by the end 3336 of the locking member 3334 such that the weights 3324, 3326 are coupled to the golf club head 3300. In the unlocked configuration, the end 3336 of the locking member 3334 is disengaged from the body 3306 of the club head 3300 such that the insert 3322 can be removed from the recessed channel 3320. Once the insert 3322 is removed, one or more weights 3324, 3326 can be replaced and substituted to adjust the weight in the weight assembly 3304. In other examples, the insert 3322 can be flipped over and inserted back into the recessed channel 3320 to adjust the position of the weights 3324, 3326 within the golf club head 3300.

[0302] Fig.95 is in a locked configuration along Fig.93 93-93 of FIG. 33. In the locked configuration, the actuator 3328 is rotated so that the locking member 3334 is positioned substantially orthogonal to the axis of rotation and in a linear orientation. Fig.95This position of the locking member 3334 shown causes the end 3336 to protrude from the insert 3322 and engage with a corresponding chamber 3338 defined in the body 3306 of the club head and within the recessed channel 3320. The locking member 3334 engaged with the body 3306 couples the weight assembly 3304 to the club head and fixes the position and orientation of the weights 3324, 3326. The actuator 3328 is rotatable to move the locking member 3334 toward an unlocked configuration as described below to enable the insert 3322 to be removed and separated from the body 3306 of the club head.

[0303] Fig.96 is in the unlocked configuration along Fig.93 3320 and the body 3306 of the club head. In this example, the end 3336 of the locking member 3334 is more rigid relative to the middle portion, so that the end 3336 can be engaged and fixed to the recessed channel 3320.

[0304] The unlocked configuration allows the weights 3324, 3326 to be replaced or allows the insert 3322 to be reinserted into the recessed channel 3320 in the flipped position and adjust the GC and MOI of the club head. The insert 3322 may include a pair of stops 3340 that engage the end 3336 of the locking member 3334 to help flex the locking member 3334 in the unlocked configuration. In this example, the weight assembly 3304 may be substantially symmetrical in the toe-heel direction and the sole-crown direction so that the insert 3322 can be used to reposition the weights 3324, 3326 within the body 3306. In addition, the shape and size of the recessed channel 3320 enables the locking member 3334 to move as described herein.

[0305] Fig.97 is a bottom view of the sole 3402 of the golf club head 3400 with another weight assembly 3404 . Fig.98 is in a locked configuration and along Fig.97 A perspective cross-sectional view of the golf club head 3400 taken along line 97-97 in FIG. Fig.99 is in unlocked configuration and along Fig.97Another perspective cross-sectional view of the golf club head 3400 taken along line 97-97 in FIG. Figures 97 to 99 , the golf club head 3400 is a fairway metal type golf club head having a body 3406 including a ball striking face 3408 having a lower edge 3410 and an upper edge 3412 extending between a toe 3414 and a heel 3416. A sole 3402 extends from the lower edge 3410 on a bottom side of the club head 3400, and a crown 3418 extends from the upper edge 3412 on a top of the club head 3400. The sole 3402, the ball striking face 3408, and the crown 3418 are coupled together to define an outer surface 3420 of the body 3406, wherein an internal cavity 3422 is formed within the body 3406. A hosel 3424 is disposed at the heel 3416 and is configured to be coupled to a shaft (not shown). The functions of the components (e.g., sole, striking face, crown, hosel, etc.) of the fairway metal golf club head 3400 are similar to the functions of the components described above. The body 3406 can be formed into any type of club head as desired or required, such as a metal wood club head, an iron club head, or a hybrid club head. In addition, the features of the weight assembly 3404 described below can be used in addition or alternatively for any type of club head described herein as desired or required.

[0306] In this example, a recessed channel 3426 is defined within the sole 3402 of the body 3406 of the club head 3400. The channel 3426 extends in the toe 3414-heel 3416 direction so that the CG and MOI of the club 3400 can be adjusted for a right-left bias. The weight assembly 3404 includes a slidable weight 3428 at least partially disposed within the channel 3426 and configured to slide therein, a cover 3430 extending at least partially over the channel 3426 and adapted to releasably secure the weight 3428 within the channel 3426, and a fastener 3432 configured to couple the cover 3430 to the body 3406. The fastener 3432 indirectly retains the weight 3428 in the recessed channel 3426 via the cover 3430 so that the weight 3428 can be used to adjust the CG and MOI of the club head 3400. In this example, the weight assembly 3404 and the recessed channel 3426 are located at the front of the golf club head 3400.

[0307] Similar to the examples described above, the weight assembly 3404 is configured to move between at least two positions via fasteners 3432, e.g. Fig.98 The locking structure shown and Fig.993426 in a fixed position, and the weight 3428 is fixed in the channel 3426 in a manner that its movement is limited. When the weight assembly 3404 is in the locked configuration, the weight 3428 is completely disposed in the channel 3426, and no portion of the weight 3428 extends above the outer surface 3420 of the body 3406. Because the weight 3428 is completely disposed in the recessed channel 3426 and is at least aligned with or below the outer surface 3420 of the body 3406, the smoothness of the outer surface 3420 of the club head 3400 is maintained to promote good ground interaction. In the unlocked configuration, the fastener 3432 enables the cover 3430 to move along the fastener axis toward the raised position so that the weight 3428 is released and can slide relative to the cover 3430 and the body 3406. The fastener 3432 is coupled to the cover 3430 by a retaining clip 3433. The retaining clip 3433 is configured to couple the fastener 3432 to the cover 3430 such that the fastener 3432 can rotate about the fastener axis and relative to the cover 3430, however, the fastener 3432 and the cover 3430 are coupled together for corresponding linear movement along the fastener axis. In one aspect, the retaining clip 3433 includes a locking washer. In this example, the cover 3430 includes a retaining rib 3434 that is configured to slidably engage with a slit 3435 defined in the counterweight 3428. The retaining rib 3434 improves the retention of the counterweight 3428 and the cover 3430 when the counterweight assembly 3404 is moved between configurations. The retaining rib 3434 is described in more detail below.

[0308] Fig.100 34 is another bottom view of the sole 3402 of the golf club head 3400. For clarity, the weight assembly 3404 (in FIG. Figures 97 to 99 34). The recessed channel 3426 is defined by a bottom rail 3436 and two opposing side walls 3438, 3440. The first side wall 3438 is adjacent to the ball striking face 3408, and the second side wall 3440 is adjacent to the rear of the bottom 3402. A nut 3442 is formed in the bottom 3402 of the body 3406 near the second side wall 3440. The nut 3442 is configured to engage with the fastener 3432 so that the cover 3430 (both in Figures 97 to 993406). In addition, the recessed channel 3426 is defined by two opposing end walls 3444, 3446. The toe end wall 3444 is located on the toe side of the club head 3400, and the heel end wall 3446 is located on the heel side of the club head 3400. In this example, no cavity or opening is defined at the end of the recessed channel 3426, and the cover 3430 lacks any corresponding protrusions. In one aspect, the fastener 3432 is the only component of the weight assembly 3404 that extends into the interior cavity of the body 3406, such as through the nut 3442. This construction of the club head 3400 reduces the accumulation of dirt and debris within the channel 3426 and the body 3406.

[0309] The bottom rail 3436 includes a plurality of bosses 3448 that protrude into the channel 3426. In this example, there are five bosses 3448 that are equally spaced apart in the toe-heel direction. The bosses 3448 are configured to be in a locked configuration ( Fig.98 3428) is selectively engaged with the counterweight 3428 when in a locked configuration, thereby helping to position and retain the counterweight 3428 within the recessed channel 3426 described herein. In this example, the boss 3448 can have a generally truncated cone shape. In addition, the first sidewall 3438 includes a plurality of recesses 3450 corresponding to the plurality of bosses 3448. The recesses 3450 are configured to selectively engage with the counterweight 3428 when in a locked configuration, thereby helping to position and retain the counterweight 3428 within the recessed channel 3426 described herein. In this example, there are five bosses 3448 and five recesses 3450, so that the counterweight 3428 can be selectively positioned in five predetermined positions. It should be understood that any other number of predetermined positions (e.g., three) can be used as desired or required.

[0310] Between the first side wall 3438 and the end walls 3444, 3446, the recessed channel 3426 is defined by an inclined wall 3452. The inclined wall 3452 is formed at the end of the channel 3426 in the toe-heel direction. Since the protrusions and cavities have been removed from the weight assembly 3404 when compared to the previous examples, the inclined wall 3452 is configured to engage with and secure the end of the cover 3430 when in the locked configuration.

[0311] Fig.101 is the cover 3430 and the weight assembly 3404 (in Figures 97 to 99 An inner surface view of the counterweight 3428 is shown in FIG. Fig.102 is a side view of the cover 3430 and the counterweight 3428. Also refer to Fig.101 and Fig.102, the cover 3430 has a first end 3454 and an opposite second end 3456. A slot 3458 is formed on one side of the cover 3430 and extends at least partially between the first end 3454 and the second end 3456. The slot 3458 is defined by at least an outer wall 3460 forming an outer surface of the cover 3430 and a side wall 3462 of the cover 3430. The slot 3458 is sized and shaped to at least partially receive the counterweight 3428 and allow the counterweight 3428 to slide therein. End walls 3464 are defined at both the first end 3454 and the second end 3456, which define the ends of the slot 3458. A fastener receiver 3466 is disposed on the cover 3430 opposite the slot 3458 and is configured to support the fastener 3432 ( Figures 97 to 99 34). Fastener 3432 couples cover 3430 to the body of the club head at fastener receiver 3466.

[0312] The retaining rib 3434 protrudes from the outer wall 3460 within the notch 3458 and extends elongatedly in a direction between the first end 3454 and the second end 3456 of the cover 3430. The retaining rib 3434 is configured to engage the counterweight 3428 to improve the retention of the counterweight 3428 to the cover 3430. The retaining rib 3434 is shaped and sized so that it is at least partially received in the slit 3435 ( Figure 98 to Figure 99 The engagement between the counterweight 3428 and the cover 3430 via the retaining ribs 3434 enables the counterweight 3428 to move between the locked configuration and the unlocked configuration with the cover 3430, and allows the counterweight 3428 to be slidably repositioned when in the unlocked configuration. In this example, the retaining ribs 3434 are discontinuous in the elongated direction, so that the counterweight 3428 can be completely removed from the counterweight assembly as desired or required.

[0313] In this example, the retaining rib 3434 may include two discrete portions, a first rib 3470 and a second rib 3472 separated by a gap 3474 configured to allow the counterweight 3428 to be at least partially removably received within the notch 3458. Fig.101As shown, the retaining rib 3434 is disposed proximate the distal end of the outer wall 3460 and on the side of the cover 3430 opposite the fastener receiver 3466. Thus, the retaining rib 3434 is spaced 3476 from the side wall 3462 of the cover 3430. The retaining rib 3434 extends from each end wall 3464, and the gap 3474 is disposed proximate the second end 3456 of the cover 3430. In another aspect, the gap 3474 can be disposed proximate the first end 3454 of the cover 3430 or proximate the midpoint of the cover 3430. In other aspects, the gap 3474 can be disposed at one end wall 3464, such that the retaining rib 3434 extends from only one end wall 3464, or there can be more than one gap 3474 within the retaining rib 3434. In yet another example, two or more parallel retaining ribs 3434 can be used as desired or required.

[0314] The cover 3430 has an outer side surface 3478 configured to align with the outer surface of the club head when in the locked configuration, and a recessed channel 3426 ( Fig.100 The thickness 3482 of the cover 3430 in a direction substantially parallel to the fastener axis of the fastener 3432 is defined between the outer side surface 3478 and the inner side surface 3480 ( Figures 97 to 99 34). The thickness 3482 of the cover 3430 at the end wall 3464 is substantially equal to the thickness 3482 of the cover 3430 at the midpoint of the notch 3458 between the first end 3454 and the second end 3456. Thus, the end wall 3464 of the cover 3430 is free of any protrusions and directly engages the recessed channel 3426 of the club head.

[0315] In the counterweight 3428 and the slit 3435 ( Figure 98 to Figure 99 At least one hollow portion 3484 is defined in the surface opposite to the channel 3426. The size and shape of the hollow portion 3484 are configured to engage with the boss 3448 disposed in the channel 3426 (both in Fig.100 ). In this example, the hollow portion 3484 includes a fully defined hollow portion 3484 and two partially defined hollow portions 3484 located on the sides of the fully defined hollow portion 3484. As shown in the depicted example, this configuration enables the use of a more slender counterweight 3428 while accommodating an increase in the number of counterweight positioning positions, for example, five.

[0316] Fig.103 is another inside surface view of covering 3430. Fig.104 It is along Fig.103 A cross-sectional view of the cover 3430 taken along line 104-104 in FIG. Fig.103 and Fig.104, some of the components are described above and therefore need not be described further. The notch 3458 is formed by the outer wall 3460 and the side wall 3462. The retaining rib 3434 is disposed proximate the distal end of the outer wall 3460. The shelf 3486 extends from the distal end of the side wall 3462 and is configured to at least partially support the counterweight 3428 ( Figure 101 to Figure 102 34). The retaining rib 3434 and the shelf 3486 extend in substantially orthogonal directions. In this example, the retaining rib 3434 has a substantially square cross-section. It should be understood that the retaining rib 3434 can have any other cross-sectional shape as required or desired.

[0317] In this example, the notch 3458 has a length 3488 defined between the end walls 3464 at the first and second ends of the cover 3430. The gap 3474 that retains the rib 3434 also has a length 3490 defined between the two portions of the rib. In one example, the length 3488 of the notch 3458 is between about two and four times the length 3490 of the gap 3474. In one aspect, the length 3488 of the notch 3458 is about three times the length 3490 of the gap 3474. Fig.103 As shown, the retaining rib 3434 has an arcuate shape in plan view, which corresponds to the elongated shape of the slot 3458 defined in the cover 3430.

[0318] The inner surface of the end wall 3464 at each end of the cover 3430 is aligned with the inner surface of the side wall 3462 so that the end wall 3464 is directly adjacent to the recessed channel 3426 ( Fig.100 Each end of the cover 3430 also includes an inclined wall 3452 ( Fig.100 3492) which enables the end of the cover to securely engage the club head in a locked configuration and reduce rattling of the weight therein.

[0319] Fig.105 35 is a partially exploded perspective view of an iron-type golf club head 3500 having another weight assembly 3504. In particular, the golf club head 3500 is a wedge-type golf club head. Fig.106 yes Fig.105 Another partially exploded perspective view of a golf club head 3500. Fig.107 yes Fig.105 35 is a rear view of golf club head 3500 with weight assembly 3504 in a locked configuration. Fig.108 yes Fig.105 Another rear view of golf club head 3500 with weight assembly 3504 in an unlocked configuration. Fig.109 yes Fig.105Another partially exploded perspective view of a golf club head 3500.

[0320] Fig.110 There is no counterweight assembly 3504 Fig.105 A top view of a golf club head 3500 is shown. Fig.111 It is along Fig.110 The line 110a-110a in Fig.105 FIG. 35 is a cross-sectional view of a golf club head 3500 taken from toe to heel with weight assembly 3504 in a locked configuration. Fig.112 It is along Fig.110 The line 110a-110a in Fig.105 A cross-sectional view of the golf club head 3500 from toe to heel with the weight assembly 3504 in an unlocked configuration. Fig.111 and Fig.112 In the present application, the golf club head is shown with the loft perpendicular to the ground plane, which is different from the setting at the ball-striking address position which usually has the shaft perpendicular to the ground plane. The ball-striking address position defined in this application sets the golf club head to an orientation with a 60-degree lie angle similar to the USGA requirements. Once the lie angle is set to 60 degrees, the face angle of the golf club head is set to square, which is defined as having a face angle of 0 degrees.

[0321] Also refer to Figures 105 to 112, the golf club head 3500 is an iron-type golf club head. For example, the iron-type golf club head can be a wedge-type golf club head. The golf club head 3500 includes a body 3506 having a ball-striking face 3508 having a lower front edge 3510 extending between a toe 3514 and a heel 3516 and an opposite upper top line edge 3512. The ball-striking face 3508 can have a plurality of grooves 3519 formed therein to impart rotation to the golf ball when the golf ball is struck by the ball-striking face. The body 3506 has a bottom 3502 extending from the lower front edge 3510 to a rear portion 3522 of the bottom 3502 on the bottom side of the golf club head 3500. The rear portion 3522 can be defined as an edge or corner on the body 3506. The back portion 3550 is located between the rear portion 3522 of the bottom 3502 and the top portion 3503. The back portion 3550 includes all surfaces of the outer surface 3520 of the body 3506 of the golf club head 3500, between the rear portion 3522 of the sole 3502 and the top portion 3503, and between the toe 3514 and the heel 3516. A specific example of the back portion 3550 will be described in more detail below. The top portion 3503 of the body 3506 is connected between the upper top line edge 3512 and the back portion 3550. In some embodiments, the top portion 3503 is a thin surface. In some other embodiments, the top portion 3503 does not exist and the upper top line edge 3512 can be directly connected to the back portion 3550. The striking face 3508, the sole 3502, the back portion 3550 and the top portion 3503 are connected together to define at least a portion of the outer surface 3520 of the body 3506. The hosel 3501 is disposed at the heel 3516 and is configured to be connected to a shaft (not shown).

[0322] In the outer surface 3520 of the body 3506, in particular in the back portion 3550, a recessed channel 3526 is defined. The channel 3526 extends in the toe 3514-heel 3516 direction so that the CG and MOI of the golf club head 3500 can be adjusted for a right-left bias. The weight assembly 3504 is adapted to be coupled to the body 3506 at the channel 3526. The weight assembly 3504 includes a weight 3528 at least partially disposed in the channel 3526 and configured to be movable in the channel 3526 in the toe 3514-heel 3516 direction, a cover 3530 extending at least partially over the channel 3526 and adapted to releasably secure the weight 3528 in the channel 3526, and a fastener 3532 configured to couple the cover 3530 to the body 3506. The fastener 3532 only indirectly holds the weight 3528 in the recessed channel 3526 via the cover 3530. Thus, the fastener 3532 can be used to secure the weight 3528 in the channel 3526 or to release the weight 3528 so that the weight 3528 can move in the channel 3526 at least in the toe 3514-heel 3516 direction. As used herein, reference to movement in the toe-heel direction also includes the heel-toe direction.

[0323] The weight assembly 3504 is configured to move between at least two positions via fasteners 3532, for example, Fig.107 and Fig.111 The unlocking structure shown and Fig.108 and Fig.112 The unlocked configuration shown. In some embodiments, the weight assembly 3504 can also be configured to move to a weight removable configuration in which the weight assembly 3504 can be completely removed from the channel 3526. However, in other embodiments, the fastener 3532 can be configured to not allow the weight assembly 3504 to be completely removed from the channel 3526 to prevent the weight 3528 from being accidentally lost, etc. In the locked configuration, the cover 3530 is at least partially disposed within the recessed channel 3526 so that its movement is restricted. When the weight assembly 3504 is in the locked configuration, the weight 3528 is disposed in the channel 3526, and the position of the weight 3528 is fixed by the cover 3530 so that it cannot move. The locked configuration can be used when swinging a golf club including the golf club head 3500, thereby setting the CG and MOI of the golf club head 3500 during the swing. The fastener 3532 can be selectively moved along the fastener axis 3570 (see Fig.111 and Fig.112) is moved. The fastener 3532 can be coupled to the cover 3530 by the retaining clip 3533 so that the fastener 3530 can rotate about the fastener axis 3570 and relative to the cover 3530. Therefore, the fastener 3532 and the cover 3530 are coupled together so that the cover 3530 moves along the fastener axis 3570 with the fastener 3532.

[0324] In other embodiments, the retaining clip 3533 may not be present so that when the fastener 3532 moves, the cover 3530 does not have to move with the fastener 3532. However, in such embodiments, when the fastener 3532 is partially moved to the raised position to at least partially release the cover 3530, the cover 3530 can move along the fastener axis 3570 to the extent that the fastener 3530 has moved.

[0325] The weight assembly 3504 is moved from the locked configuration to the unlocked configuration by adjusting the position of the fastener 3532 to the raised position so that the weight 3528 is released and can move within the channel 3526 at least in the toe 3514-heel 3516 direction and relative to the body 3506 and the cover 3530. The unlocked configuration can be used to adjust the CG and MOI of the golf club head 3500 when the golf club including the golf club head 3500 is not being swung.

[0326] The weight assembly 3504 can be moved from the unlocked configuration to the weight removable configuration by further adjusting the position of the fastener 3532 to a position high enough so that the weight 3528 can be removed from the channel 3526 and / or separated from the cover 3530. In some embodiments, the weight assembly 3504 can be completely separated from the body 3506 in the weight removable configuration. The weight removable configuration can be used to allow the weight 3528 to be replaced. For example, multiple weights with different masses can be used with the weight assembly 3504, and the weights with different masses can be interchanged to better control the CG and MOI of the golf club head 3500.

[0327] In this non-exclusive example, for example Fig.107 As shown, the back portion 3550 includes a lower back surface 3552 connected between the rear portion 3522 of the bottom portion 3502 and the top portion 3503, a first back surface 3554 connected between the lower back surface 3552 and the top portion 3503, an intermediate surface 3555 connected between the first back surface 3554 and the top portion 3503, and a second back surface 3556 connected between the intermediate surface 3555 and the top portion 3503.

[0328] In some embodiments, the lower back surface 3552 can be substantially flat. In some other embodiments, the lower back surface 3552 can be substantially flat except for the curve in the toe 3514 - heel 3516 direction. The height of the lower back surface 3552 (when at Fig.105 The height of the lower back surface 3552, the height of the first back surface 3554, the height of the middle back surface 3555, and the height of the second back surface 3556 may be the lowest. In some embodiments, the lower back surface 3552 may not exist, and the first back surface 3554 may extend from the rear portion 3522 of the bottom 3502.

[0329] The first back surface 3554 can be substantially flat and can extend from an edge of the lower back surface 3552 away from the rear portion 3522 toward the intermediate surface 3555 in a direction such that at least a portion of an imaginary extension of the first back surface 3554 intersects the ball striking face 3508. The first back surface 3554 can also extend toward the top line edge 3512 of the golf club head 3500 (e.g., can extend in a direction closer to the top line edge 3512 of the golf club head 3500).

[0330] The intermediate back surface 3555 can be a curved or substantially flat surface extending from an edge of the first back surface 3554 away from the lower back surface 3552 to the second back surface 3556. In some embodiments, the intermediate back surface 3555 does not exist and the second back surface 3556 extends from the first back surface 3554.

[0331] The second back surface 3556 can be substantially flat and parallel to the ball striking face 3508. The second back surface 3556 extends from an edge of the intermediate back surface 3555 away from the first back surface 3554 to the top portion 3503. The first surface 3554 and the second surface 3556 generally form an obtuse angle. For example, an obtuse angle can be formed where an imaginary extension of the first surface 3554 and an imaginary extension of the second surface 3556 intersect.

[0332] Although the back portion 3550 has been described as including a lower back surface 3552, a first back surface 3554, an intermediate back surface 3555, and a second back surface 3556, and the recessed channel 3526 has been described as being formed in the first back surface 3554, embodiments of the present disclosure are not limited thereto. The back portion 3550 may include any one or more of the lower back surface 3552, the first back surface 3554, the intermediate back surface 3555, and the second back surface 3556. Although the lower back surface 3552, the first back surface 3554, the intermediate back surface 3555, and the second back surface 3556 have been shown and described as having certain features, the lower back surface 3552, the first back surface 3554, the intermediate back surface 3555, and the second back surface 3556 are not limited thereto. These features are provided to describe example embodiments, not for limitation. In addition, the recessed channel 3526 may be formed in any one or more surfaces included in the back portion 3550.

[0333] In this example, for example Fig.110 As shown, a recessed channel 3526 is formed in the back portion 3550, for example, in the first back surface 3554. A fastener receiver 3572 adapted to receive and engage with the fastener 3532 is also defined in the back portion 3550, for example, at the junction between the first surface 3554 and the second surface 3556 or at the intermediate back surface 3555. A fastener cutout 3571 is formed around the fastener receiver 3572 and is shallower than the fastener receiver 3572. The fastener cutout 3571 forms a hollow portion in the second back surface 3556. The cover 3530 includes a locator protrusion 3557 having a shape and size corresponding to the fastener cutout 3571, so that the locator protrusion 3557 can engage with the fastener cutout 3571 to at least partially define the position of the cover 3530 in the locked configuration and in some embodiments, in the unlocked configuration.

[0334] The channel 3526 has opposing first and second side walls 3538, 3540 extending in the toe 3514-heel 3516 direction. The second side wall 3540 is adjacent to the fastener receiver 3572, and the first side wall 3538 is adjacent to the rear portion 3522 of the bottom 3502. The channel 3526 also has opposing toe end walls 3544 and heel end walls 3546, wherein the toe end wall 3544 is adjacent to the toe 3514 and the heel end wall 3536 is adjacent to the heel 3516. The channel 3526 has a bottom track 3536 that is offset from the outer surface 3520 of the body 3506 and is disposed between the first side wall 3538 and the second side wall 3540 and between the toe end wall 3544 and the heel end wall 3546.

[0335] The body 3506 includes a plurality of positioning lugs 3534 located on a bottom rail 3536. The positioning lugs 3534 protrude from the bottom rail 3536 toward the opening of the recessed channel 3526. Fig.109 As shown, the weight 3528 has a bottom recess 3562, the shape and size of which allow the weight 3528 to selectively engage with the positioning lug 3534, thereby at least partially defining the position of the weight 3528 in the recessed channel 3526. The first side wall 3538 has a plurality of recesses 3524 at the top of the first side wall 3524 at the opening of the recessed channel 3526. The recesses 3524 are cutouts or hollows in the first side wall 3538, and have positions arranged along the toe 3514-heel 3516 direction, respectively corresponding to the positioning lugs 3534. The weight 3528 includes a body 3560 and a position indicator 3568 protruding from the body 3560. The shape and size of the position indicator 3568 are set to selectively engage with the recess 3524 to visually indicate the position of the weight 3528 in the channel 3526. In the locked configuration, the cover 3530 can cover and conceal the body 3560 of the counterweight 3528, but the position indicator 3568 can extend from beneath the cover 3568 and be at least partially positioned in one of the recesses 3524. In the locked configuration, 0% to 30% of the outer surface of the counterweight 3528 is visible.

[0336] like Fig.111 and Fig.112 As shown, the cover 3530 includes a flange 3558 and the weight 3528 has a recess 3566 shaped and dimensioned to receive at least a portion of the flange 3558 to enable the weight 3528 to slidably engage the cover 3530. Thus, when the weight assembly 3504 is in the unlocked configuration, the weight 3528 can slide back and forth within the recessed channel 3526.

[0337] like Fig.111 and Fig.112 As shown, the ball striking face 3508 has an outermost surface 3518 and a plurality of grooves 3519, each groove having a longitudinal axis extending in the toe 3514-heel 3516 direction. Except for the grooves 3519, the outermost surface 3518 can be substantially flat. The ball striking face plane 3580 is tangential to the outermost surface 3518 and extends beyond the boundaries of the ball striking face 3508 itself. Fig.111 and Fig.112 In the exemplary toe-to-heel cross-sectional view of FIG. 1 , the Y coordinate is defined as extending up and down (generally from top to bottom), the Z coordinate is defined as extending side to side (generally from front to back), and the X coordinate is defined as extending into and out of the page (generally from toe to heel). Fig.111 and Fig.112In the example of FIG. 35, with the club head 3500 oriented as shown, the ball striking face plane 3580 is in the XY plane, and the Z axis is orthogonal to the ball striking face plane (the depicted XY plane). In the example, the fastener axis 3570 (which includes an imaginary extension of the axis along which the fastener 3532 moves between the locked position and the unlocked position) intersects the ball striking face plane 3580. In some examples, the intersection of the fastener axis 3570 with the ball striking face plane 3580 occurs at a point closer to the lower leading edge 3510 of the ball striking face 3508 than to the upper topline edge 3512 of the ball striking face 3508. In some embodiments, the fastener axis 3570 intersects the ball striking face 3508 itself. In some other embodiments, the fastener axis 3570 does not intersect the ball striking face 3508, but still intersects the ball striking face plane 3580 at a position closer to the lower leading edge 3510 than the upper top line edge 3512, such as at a point below the lower leading edge 3510.

[0338] The fastener angle 3584 of the fastener axis 3570 can be measured in a cross-sectional plane. For example, as used herein, the cross-sectional plane is a plane orthogonal to the longitudinal axis of at least one groove 3519 (e.g., the groove 3519A closest to the lower leading edge 3510, or the groove 3519B second closest to the lower leading edge 3510). That is, the longitudinal axis of at least one groove 3519 can be perpendicular to the cross-sectional plane. Fig.111 and Fig.112 In the example of , the cross-sectional plane is depicted as the YZ plane. The fastener axis 3570 forms a fastener angle 3584 with the striking face plane 3580 in the cross-sectional plane. It should be recognized that the fastener axis 3570 may not be completely within the cross-sectional plane (here, the YZ plane) and that the vector of the fastener axis 3570 may include some components in the X direction (e.g., the fastener axis 3570 may be tilted in the toe 3514 - heel 3516 direction); however, as used herein, the fastener angle 3584 is measured only in the cross-sectional plane, ignoring any toe-to-heel (or "X") component of the vector defining the fastener axis 3570. As shown in FIG. Fig.111 and Fig.112As shown, the fastener angle 3584 is defined in the cross-sectional plane and is measured in a counterclockwise direction from the ball striking face plane 3580 to the fastener axis 3570 when the cross-sectional plane is viewed in the toe-to-heel direction. The fastener angle 3584 can be in the range of about 0 degrees to about 90 degrees. For example, the fastener angle 3584 of the fastener axis 3570 relative to the ball striking face plane 3580 can be about 5 degrees to about 85 degrees, about 10 degrees to about 80 degrees, about 15 degrees to about 75 degrees, about 20 degrees to about 70 degrees, about 25 degrees to about 65 degrees, about 30 degrees to about 60 degrees, about 35 degrees to about 55 degrees, about 40 degrees to about 50 degrees, or about 45 degrees. In other examples, the fastener angle 3584 of the fastener axis 3570 relative to the ball striking face plane 3580 may be non-negative and may be less than about 80 degrees, less than about 70 degrees, less than about 60 degrees, less than about 50 degrees, less than about 45 degrees, less than about 40 degrees, less than about 30 degrees, less than about 20 degrees, less than about 10 degrees, less than about 5 degrees, or about 0 degrees. In other examples, depending on the configuration of the back portion 3550 of the club head 3500, the fastener angle 3584 of the fastener axis 3570 relative to the ball striking face plane 3580 may even be negative, for example, from about 0 degrees to about -5 degrees, from about 0 degrees to about -10 degrees, from about 0 degrees to about -20 degrees, from about 0 degrees to about -30 degrees, or from about 0 degrees to about -45 degrees. The foregoing ranges of fastener angles 3584 are non-limiting example ranges, and fastener angles 3584 may be within any range encompassed within the range of -45 degrees to about 135 degrees, for example, about 28 degrees to about 63 degrees or about 85 degrees to about 115 degrees. By forming recessed channel 3526 and disposing weight assembly 3504 in back portion 3550 of iron-type golf club head 3500 instead of sole 3502, interaction between weight assembly 3504 and the ground may be reduced when a golf club including golf club head 3500 is swung. Thus, dust and other materials may be substantially prevented from entering recessed channel 3526 and interfering with weight assembly 3504.

[0339] In an example, the height of the fastener 3532 can be measured in the cross-sectional plane along a direction from the lower leading edge 3510 to the upper leading edge 3512. In an example, the height of the fastener 3532 increases when the weight assembly 3504 moves from the locked configuration to the unlocked configuration.

[0340] Fig.113 is a rear view of the golf club head 3500 with another weight assembly 3604 in a locked configuration. Fig.113 The golf club head 3500 of the illustrated embodiment may include the same Figures 105 to 112 The golf club head 3500 shows some features similar or identical to the features described above. Some components are described above and therefore do not need to be described further. Fig.113 , the golf club head 3500 has a body including a toe 3514, a heel 3516, a top portion 3503, a ball striking face (not shown), a sole 3502, and a back portion 3550. The back portion 3550 includes a lower back surface 3552, a first back surface 3554, an intermediate back surface 3555, and a second back surface 3556. A recessed channel (not shown) is formed in the first back surface 3554, and a weight assembly 3604 can be coupled to the body of the golf club head 3500 at the recessed channel. The weight assembly 3604 includes a weight (not shown), a cover 3630, and a fastener 3632.

[0341] In this example, weight assembly 3604 is similar to weight assembly 3504, except that when weight assembly 3604 is in the locked configuration, cover 3630 completely covers the weight and the recessed channel, including the bottom track of the recessed channel (not shown). In an example, cover 3630 may include one or more see-through openings 3690 to provide an indication of where the weight is located within the recessed channel. For example, the body of golf club head 3500 may have a plurality of locating lugs at the bottom track of the recessed channel (similar to Fig.110 The cover 3630 may include a plurality of positioning lugs 3534 (shown) to engage with the counterweight and at least partially define the position of the counterweight when the counterweight assembly 3604 is in the locked configuration, and the cover 3630 may include a plurality of perspective openings 3690 at positions corresponding to the plurality of positioning lugs, respectively. In an example, the counterweight may be adapted to slidably engage with a flange on the cover 3730 (e.g., similar to Fig.106 The weight 3528 in the illustrated embodiment is adapted to slidably engage with a flange 3558 of the cover 3530), may be adapted to slidably engage with a rail on the body (e.g., a rail protruding from a bottom track or from a sidewall of a recessed channel), or may not be adapted to slidably engage with the cover or body. The weight assembly 3604 may include one or more of the weight assembly features described herein to enable the CG and MOI of the golf club head 3500 to be adjusted for right-left bias when the weight is indirectly secured in a locked configuration by the cover 3630. In an example, the fastener 3632 forms a fastener angle that is measured in a cross-sectional plane relative to a ball striking face and / or a ball striking face plane of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0342] Fig.114 is a rear view of the golf club head 3500 having another weight assembly 3704, Fig.115 yes Fig.114 A top view of a golf club head 3500 is shown. Fig.114 and Fig.115The golf club head 3500 of the illustrated embodiment may include the same Figures 105 to 112 The golf club head 3500 shows some features similar or identical to the features described above. Some components are described above and therefore do not need to be described further. Fig.114 and Fig.115 , the golf club head 3500 has a body including a toe 3514, a heel 3516, a top portion 3503, a ball striking face (not shown), a sole 3502, and a back portion 3550. The back portion 3550 includes a lower back surface 3552, a first back surface 3554, an intermediate back surface 3555, and a second back surface 3556. A recessed channel 3526 is formed in the first back surface 3554, and a weight assembly 3604 can be coupled to the body of the golf club head 3500 at the recessed channel 3526. The weight assembly 3704 includes a weight 3728, a cover 3730, and a fastener 3732.

[0343] In this example, when the counterweight assembly 3704 is in the locked configuration, the cover 3730 exposes at least a portion of the counterweight 3728 and at least a portion of the recessed channel (e.g., at least a portion of the bottom track of the recessed channel 3526). For example, the cover 3730 can have a cutout portion that overlaps at least a portion of the recessed channel 3526 while still allowing the cover 3730 to releasably secure the counterweight 3728 in the recessed channel 3526. Thus, the position of the counterweight 3728 in the recessed channel 3526 when the counterweight assembly 3704 is in the locked configuration can be seen through the cutout portion of the cover 3730. In an example, the counterweight 3728 can be adapted to slidably engage with a flange on the cover 3730 (e.g., similar to a flange on the cover 3730). Fig.106 The weight 3528 in the illustrated embodiment is adapted to slidably engage with the flange 3558 of the cover 3530), may be adapted to slidably engage with a rail on the body (e.g., a rail protruding from a bottom track or protruding from a sidewall of a recessed channel), or may not be adapted to slidably engage with the cover 3730 or the body. The weight assembly 3704 may include one or more of the weight assembly features described herein to enable the CG and MOI of the golf club head 3500 to be adjusted for right-left bias when the weight 3728 is secured in a locked configuration. In an example, the fastener 3732 forms a fastener angle that is measured in a cross-sectional plane relative to the ball striking face and / or ball striking face plane of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0344] Fig.116 is a rear view of the golf club head 3500 with another weight assembly 3804 in a locked configuration. Fig.117is when the counterweight assembly 3804 is in the unlocked configuration Fig.116 A rear view of a golf club head 3500 is shown. Fig.118 yes Fig.116 A partially exploded rear view of a golf club head 3500 is shown. Fig.119 is taken along line 116a-116a when the weight assembly 3804 is in the locked configuration Fig.116 A cross-sectional view of a golf club head 3500 taken from toe to heel. Fig.120 is taken along line 116a-116a when the counterweight assembly 3804 is in the unlocked configuration Fig.116 A cross-sectional view of a golf club head 3500 taken from toe to heel. Figures 116 to 120 The golf club head 3500 of the illustrated embodiment may include the same Figures 105 to 112 The golf club head 3500 shows some features similar or identical to the features described above. Some components are described above and therefore do not need to be described further. Figures 116 to 120 In the example of the golf club head 3500, the golf club head 3500 has a body including a toe 3514, a heel 3516, a top portion 3503, a ball striking face 3508 (see Fig.119 ), sole 3502 and back portion 3550. Back portion 3550 includes lower back surface 3552, first back surface 3554, middle back surface 3555 and second back surface 3556. A recessed channel 3526 is formed in first back surface 3554, and weight assembly 3804 is coupled to the body of golf club head 3500 at recessed channel 3526.

[0345] The counterweight assembly 3804 includes a counterweight 3828, a cover 3830, and a fastener 3832. The fastener 3832 is coupled to the cover 3830 by a retaining clip 3533. In this example, the counterweight includes a body 3860 and a protruding position indicator 3868 extending from an upper portion of the body 3860. The upper portion of the body 3860 refers to the portion of the body 3860 that is closest to the cover 3830 and / or the opening of the recessed channel 3526 when the counterweight assembly 3804 is in the locked configuration. The lower portion of the body 3860 refers to the portion of the body 3860 that is closest to the bottom of the recessed channel 3526 when the counterweight assembly 3804 is in the locked configuration. The concave channel 3526 extends in the direction of the toe 3514-heel 3516, and the cover 3830 has two opposite long sides extending in the direction of the toe 3504-heel 3516, namely a first long side 3886 away from the ball striking face 3508 and a second long side 3887 close to the ball striking face 3508. The cover 3830 also has an inner surface 3888 facing the concave channel 3526 when the weight assembly 3804 is in the locked configuration, and an outer surface 3889 facing away from the concave channel 3526 when the weight assembly 3804 is in the locked configuration. In some embodiments, when the weight assembly 3804 is in the locked configuration, at least a portion of the outer surface 3889 can be flush with the first back surface 3554, and at least a portion of the inner surface 3888 is offset from the first back surface 3554 and located within the concave channel 3526.

[0346] In the locked configuration, the cover 3830 covers and hides at least a portion of the body 3860, and at least a portion of the protruding position indicator 3868 extends from below the cover 3830 to be exposed. Therefore, the protruding position indicator 3868 can indicate the position of the weight 3828 in the recessed channel 3526 when the weight assembly 3804 is in the locked configuration. In the locked configuration, the protruding position indicator 3868 can be on (e.g., in contact with) a portion of the outer surface (e.g., first back surface 3554) of the body of the golf club head 3500. In this example, the weight 3828 is not adapted to be slidably engaged with the cover 3830. When the cover 3830 moves from the locked configuration to the unlocked configuration, the weight 3828 remains in the recessed channel 3526. In the unlocked configuration, the weight 3828 can be grasped by the protruding position indicator 3868 and moved in the toe 3514-heel 3516 direction. The body includes a locating lug (similar to Fig.10In some embodiments of the present invention, the weight 3828 can be slightly lifted by the protruding position indicator 3868 before being moved in the toe 3514-heel 3516 direction. The cover 3830 has at least one positioning groove 3859 in the inner surface 3888, which is shaped and sized to receive at least a portion of the protruding position indicator 3868 and is adapted to engage with the protruding position indicator 3868 to at least partially define the position of the weight 3828. The at least one positioning groove 3859 can include a plurality of (e.g., 5) positioning grooves, and the protruding position indicator 3868 can be selectively engaged with the positioning groove 3859. The positioning groove 3859 can extend from the first side 3886 toward the second side 3887 (e.g., at least partially lead to the second side 3887). The weight assembly 3804 can include one or more weight assembly features described herein to enable the CG and MOI of the golf club head 3500 to be adjusted for a right-left bias when the weight is secured in a locked configuration. In the example, the fastener 3832 forms a fastener angle 3584 that is measured in a cross-sectional plane relative to the ball striking face 3508 and / or the ball striking face plane 3580 of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0347] Fig.121 39 is a rear view of a golf club head 3900 with another weight assembly 3904 in a locked configuration. In this example, the golf club head 3900 is an iron-type golf club head, rather than a wedge-type golf club head. In particular, the golf club head 3900 is shown as a 3-iron. (Trademark of Acushnet) golf club head, but the embodiment is not limited thereto. Fig.122 is when the counterweight assembly 3904 is in the unlocked configuration Fig.121 A rear view of a golf club head 3900 is shown. Fig.123 is when the counterweight assembly 3904 is in the unlocked configuration Fig.121 A perspective view of a golf club head 3900 is shown. Fig.124 yes Fig.121 A partially exploded perspective view of a golf club head 3900 is shown. Fig.125 is the weight structure 3904 along line 121a-121a when it is in the locked configuration. Fig.121 A cross-sectional view of a golf club head 3900 taken from toe to heel. Fig.126 is the weight structure 3904 along line 121a-121a when it is in the unlocked configuration Fig.121 A cross-sectional view of a golf club head 3900 is shown. Figures 121 to 126The golf club head 3900 of the illustrated embodiment may include the same Figures 105 to 112 The golf club head 3500 shows some features that are similar or identical to the features described above.

[0348] Reference Figures 121 to 126 , the golf club head 3900 has a body including a toe 3914, a heel 3916, a top portion 3903, a ball striking face 3908, a bottom 3902, and a back portion 3950. The neck portion 3901 is disposed at the heel 3916 and is configured to be coupled to a shaft (not shown). The ball striking face 3908 has an upper top line edge 3912 and an opposite lower front edge 3910. Fig.125 and Fig.126 As shown, the ball striking face 3908 also has an outermost surface 3918 and a groove 3919 extending in a toe 3914 -heel 3916 direction. The sole 3902 extends from the lower front edge 3910 and has a rear portion 3922 distal from the lower front edge 3910.

[0349] The back portion 3950 is positioned between the rear portion 3922 of the sole 3902 and the top portion 3903, and includes all surfaces of the exterior surface of the body of the golf club head 3900, between the rear portion 3922 of the sole 3902 and the top portion 3903, and between the toe 3914 and the heel 3916. In this example, the back portion 3950 includes a lower back surface 3952, a first back surface 3954, an intermediate back surface 3955, and a second back surface 3956. In the example, the second back surface 3956 is used with the cover 3930 to conceal a cavity formed at the rear of the club head 3900; however, the second back surface 3956 remains stationary when the cover 3930 moves between the locked position and the unlocked position.

[0350] A recessed channel 3926 is formed in the first back surface 3954, where the weight assembly 3904 may be coupled to the body of the golf club head 3900. The recessed channel 3926 has a bottom rail 3936 offset from the outer surface of the body of the golf club head 3900. The recessed channel 3926 also has opposing first and second side walls 3938, 3940 extending in a toe 3914-heel 3916 direction, the first side wall 3938 being close to or adjacent to the lower back surface 3952 and the second side wall 3940 being away from the lower back surface 3952. At least one recess 3924 may be formed in the first side wall 3938 at an upper end thereof, and an opening of the recessed channel 3926 is formed in the outer surface of the body at the upper end of the first side wall 3938.

[0351] The weight assembly 3904 includes a weight 3928, a cover 3930, and a fastener 3932. A fastener receiver 3972 is formed in the body of the golf club head 3900 and is adapted to receive and engage at least a portion of the fastener 3932. The cover 3930 includes a flange 3958, and the weight 3928 has a groove 3966 shaped and dimensioned to receive at least a portion of the flange 3958 and to slideably engage the weight 3928 with the cover 3930. The weight 3928 has a body 3960 and a protruding position indicator 3968 protruding from the body 3960. At least one recess 3924 is shaped and dimensioned to receive at least a portion of the protruding position indicator 3968. In the locked configuration of weight assembly 3904, cover 3930 can cover and conceal body 3960 of weight 3928, and protruding position indicator 3968 can at least partially protrude from beneath cover 3930 and engage a recess in at least one recess 3924 to visually indicate the position of weight 3928 in the locked configuration. Weight assembly 3904 can include one or more weight assembly features described herein to enable the CG and MOI of golf club head 3900 to be adjusted for right-left bias when the weight is secured in the locked configuration.

[0352] In an example, the fastener 3932 forms a fastener angle 3984 measured relative to the ball striking face 3908 and / or ball striking face plane 3980 of the golf club head 3900 in the cross-sectional plane in the manner described above with respect to the weight assembly 3504 .

[0353] Although specific embodiments and aspects are described herein and specific examples are provided, the scope of the present technology is not limited to those specific embodiments and examples. For example, although many current examples have been described, particularly for use with No. 1 woods, fairway metals and irons, any of the present technology can be applied to any metal wood golf club, fairway metal golf club or wood golf club, iron golf club or hybrid golf club. In addition, each of the above examples can be combined with another example and / or one or more features of some examples can be combined with other examples. Those skilled in the art will recognize other embodiments or improvements within the scope and spirit of the present technology. Therefore, specific structures, actions or media are disclosed only in the form of illustrative embodiments. In addition, if it is unclear to those skilled in the art from the foregoing description that the terms "about", "substantially" or "approximately" used in the appended claims are limited to within ten percent of the value. The scope of the present technology is defined by the appended claims and any equivalents therein.

Claims

1. An iron-type golf club head, include: The subject includes: A striking surface having a lower leading edge; a base extending from the lower front edge; and a back portion positioned rearwardly of the ball striking face and coupled to a rear portion of the sole; a recessed channel formed in the rear portion; and A counterweight assembly, the counterweight assembly comprising: a counterweight at least partially disposed within the recessed channel and configured to move within the recessed channel, a cover adapted to releasably secure the weight within the recessed channel, and a fastener coupling the cover to the body and selectively movable along a fastener axis, the fastener axis forming a fastener angle of about 0 degrees to about 90 degrees with a ball striking face plane, Wherein, the striking face plane is tangent to the outermost surface of the striking face, the fastener angle is formed in the cross-sectional plane, and when the cross-sectional plane is observed in the toe to heel direction, the fastener angle is measured from the striking face plane to the fastener axis in a counterclockwise direction.

2. The iron-type golf club head according to claim 1, in, The cover is positionable in at least an unlocked configuration in which the cover is at least partially raised out of the recessed channel and the counterweight is selectively movable within the recessed channel, and a locked configuration in which the cover is at least partially disposed within the recessed channel and the counterweight is secured within the recessed channel.

3. The iron-type golf club head according to claim 2, in, The counterweight engages the cover so as to move with the cover between the locked configuration and the unlocked configuration.

4. The iron-type golf club head according to claim 3, in, The cover includes a flange and the weight has a recess shaped and dimensioned to receive at least a portion of the flange to slidingly engage the weight with the cover.

5. The iron-type golf club head according to claim 2, in, The weight is retained in the recessed channel when the cover is moved between the locked configuration and the unlocked configuration.

6. The iron-type golf club head according to claim 2, in, In the locked configuration, about 0% to about 30% of the outer surface of the weight is visible.

7. The iron-type golf club head according to claim 1, in, The recessed channel has a bottom track that is offset from the outer surface of the body, and the cover extends at least partially over the recessed channel to cover the entire bottom track.

8. The iron-type golf club head according to claim 1, in, The recessed channel has a bottom track that is offset from the outer surface of the body, and the cover extends partially over the recessed channel and exposes at least a portion of the bottom track.

9. The iron-type golf club head according to claim 1, in, The iron-type golf club head is a wedge-type golf club head.

10. An iron-type golf club head, include: The subject includes: a striking face having an upper topline edge and a lower leading edge; a bottom portion extending from the lower front edge and having a rear portion distal from the lower front edge; and a first back surface coupled to the rear portion and extending toward the upper topline edge, wherein one or more of the ball striking face, the sole, and the first back surface define at least a portion of an exterior surface of the body; a recessed channel defined in said first back surface; and A counterweight assembly, the counterweight assembly comprising: a counterweight disposed at least partially within the recessed channel, a cover extending at least partially over the recessed channel, and a fastener coupling the cover to the body, the fastener being adapted to indirectly retain the weight in the recessed channel through the cover, and Wherein, the cover can be positioned in at least an unlocked configuration and a locked configuration, in which, in the unlocked configuration, the cover is at least partially raised out of the recessed channel and the counterweight can be selectively moved within the recessed channel, and in the locked configuration, the cover is at least partially disposed within the recessed channel and the counterweight is fixed within the recessed channel.

11. The iron-type golf club head according to claim 10, in, A fastener axis defined by the fastener intersects a ball striking face plane tangent to an outermost surface of the ball striking face at a point closer to the lower leading edge than the upper topline edge.

12. The iron-type golf club head according to claim 10, in, The fastener has a height defined along a direction from the lower front edge to the upper top line edge, and Wherein the height of the fastener increases when the position of the cover changes from the locked configuration to the unlocked configuration.

13. The iron-type golf club head according to claim 10, in, The fastener defines a fastener axis that forms a fastener angle of about 0 degrees to about 90 degrees with the plane of the ball striking face, Wherein, the striking face plane is tangent to the outermost surface of the striking face, the fastener angle is formed in the cross-sectional plane, and when the cross-sectional plane is observed in the toe to heel direction, the fastener angle is measured from the striking face plane to the fastener axis in a counterclockwise direction.

14. The iron-type golf club head according to claim 10, in, A fastener axis defined by the fastener intersects the ball striking face.

15. The iron-type golf club head according to claim 10, in, The body also includes a second back surface connected between the first back surface and the upper top line edge of the striking face, and the second back surface forms an obtuse angle with the first back surface at a junction between the first back surface and the second back surface.

16. The iron-type golf club head according to claim 15, in, The body has a fastener hollow portion at a location between the first back surface and the second back surface and adapted to receive at least a portion of the fastener, and the recessed channel is spaced apart from the fastener hollow portion.

17. The iron-type golf club head according to claim 10, in, The body includes at least one locating lug located on a bottom track of the recessed channel offset from the outer surface of the body, and The counterweight includes a recess shaped and dimensioned to receive at least a portion of the at least one locating lug to at least partially define a position of the counterweight within the recessed channel.

18. The iron-type golf club head according to claim 10, in, The recessed channel has a first sidewall in the toe-heel direction adjacent the rear portion of the sole, the first sidewall including at least one recess, and Wherein the counterweight includes a protruding position indicator configured to selectively engage with the at least one recess.

19. The iron-type golf club head according to claim 10, in, The cover includes at least one detent recess, and the weight includes a protruding position indicator configured to selectively engage the at least one detent recess.

20. An iron-type golf club head, include: a body having an outer surface; a recessed channel formed in said outer surface; as well as A counterweight assembly, the counterweight assembly comprising: a counterweight disposed at least partially within the recessed channel and configured to move within the recessed channel; a cover adapted to releasably secure the weight within the recessed channel; and A fastener couples the cover to the body and is selectively movable along a fastener axis that intersects a ball striking face of the body.

Images