Golf club having an adjustable weight assembly

Abstract

To provide a golf club head having an adjustable weight assembly. **Solution**: The golf club head includes a recessed channel and a weight assembly. The weight assembly includes a weight that is at least partially disposed within the recessed channel, and a cover that at least partially covers the recessed channel. The cover includes a cover main body portion, an upper rail that protrudes from the cover main body portion along a first direction, and a side rail that protrudes from the cover main body portion along a second direction different from the first direction. The weight assembly further includes a fastener that connects the cover to the main body portion. The weight has upper and side grooves that are shaped and sized to receive at least a portion of the upper and side rails, respectively. The upper groove has a front surface and a rear surface, and the side groove has an upper surface and a bottom surface.

Description

Technical Field

[0001] Cross - Reference to Related Applications This application is a continuation - in - part of U.S. Patent Application No. 18 / 349,887, filed on July 10, 2023, which is a continuation - in - part of U.S. Patent Application No. 18 / 069,829, filed on December 21, 2022, which is a continuation - in - part of U.S. Patent Application No. 17 / 812,649, filed on July 14, 2022, which is a continuation - in - part of U.S. Patent Application No. 17 / 556,154, filed on December 20, 2021, which is a continuation - in - part of U.S. Patent Application No. 17 / 362,488, filed on June 29, 2021 (now U.S. Patent No. 11,497,974), which is a continuation - in - part of U.S. Patent Application No. 17 / 222,774, filed on April 5, 2021 (now U.S. Patent No. 11,439,879), which is a continuation - in - part of U.S. Patent Application No. 17 / 122,887, filed on December 15, 2020 (now U.S. Patent No. 11,229,827), 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. 16 / 708,255, filed on 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 on 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 on April 18, 2019 (now U.S. Patent No. 10,695,628), and all of them are hereby incorporated by reference in their entirety into this specification. To the extent appropriate, this application claims the priority of the applications referenced above.

Background Art

[0002] The flight characteristics of a golf ball after being struck by a golf club 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 fade, draw, launch angle, ball spin, 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 enabling the performance of the golf club to be enhanced. In some instances, adjusting the center of gravity (CG) and / or moment of inertia (MOI) of the golf club head through selective weight placement affects the flight characteristics of the golf ball. However, these adjustable weights need to be securely attached to the golf club head and selectively movable. Therefore, improvements to adjustable weight assemblies for golf club heads are desired.

Summary of the Invention

Means for Solving the Problems

[0003] According to one aspect, the present technology is a golf club head, the golf club head including a body portion, the body portion including a striking face having a lower leading edge and a sole extending from the lower leading edge, the striking face and the sole forming a part of the outer surface of the body portion, and the golf club head further including a recessed channel formed in the outer surface and a weight assembly. The weight assembly includes a weight that is at least partially disposed in the recessed channel and configured to be movable within the recessed channel, and a cover that at least partially covers the recessed channel. The cover includes a cover main body portion, an upper rail, and side rails. The upper rail extends along the toe-heel direction and protrudes from the cover main body portion along a first direction. The side rails extend along the toe-heel direction and protrude from the cover main body portion along a second direction different from the first direction. The golf club head further includes a fastener that connects the cover to the body portion and is configured to indirectly hold the weight in the recessed channel by the cover. The weight has upper and side grooves shaped and sized to receive at least a portion of the upper and side rails, respectively. The upper groove has front and rear surfaces on opposite sides, proximal and distal to the striking face, respectively, and a bottom surface connecting the front and rear surfaces. The side groove has upper and bottom surfaces on opposite sides, proximal and distal to the outer surface of the cover configured to face outward from the golf club head, respectively, and a front surface connecting the upper and bottom surfaces. It relates to a golf club head.

[0004] In some examples, the first and second directions are within 15 degrees of being perpendicular to each other. In some examples, at least a portion of the front surface, at least a portion of the rear surface, and at least a portion of the bottom surface of the upper groove are each substantially flat, and the respective substantially flat parts of the front and rear surfaces of the upper groove are substantially parallel to each other. At least a portion of the upper surface, at least a portion of the bottom surface, and at least a portion of the front surface of the side groove are each substantially flat, and the respective substantially flat parts of the upper and bottom surfaces of the side groove are substantially parallel to each other. In some examples, when the cover secures the weight in the recessed channel, between about 0% and about 30% of the outer surface of the weight is visible. In some examples, one or more windows are formed in the cover and are adapted to visually identify the position of the weight in the recessed channel, and the weight assembly further includes one or more at least partially transparent window members, and the one or more at least partially transparent window members are attached to the cover and overlap the one or more windows. In some examples, the cover is movable via a fastener between at least an unlocked configuration and a locked configuration. In the unlocked configuration, the cover is at least partially raised out of the recessed channel and the weight is selectively movable within the recessed channel. In the locked configuration, the cover is at least partially disposed within the recessed channel and the weight is secured within the recessed channel. In some examples, the fastener is a threaded fastener that is movable along the fastener axis by rotating about the fastener axis, and the threaded fastener is selectively positionable at least at a first position when the cover is in the locked configuration and at a second position when the cover is in the unlocked configuration. The weight assembly is configured such that when the cover is in the locked configuration, the weight is fully covered, and when the threaded fastener is rotated through less than three full rotations about the fastener axis from the first position, the weight is configured to become visible from under the cover.In some examples, the recessed channel is in the sole.

[0005] According to another aspect, the present technology is a golf club head, the golf club head including a body portion, the body portion including a striking face having a lower leading edge and a sole extending from the lower leading edge, the golf club head further including a recessed channel formed in the sole; and a weight assembly, the weight assembly including a weight, the weight being at least partially disposed within the recessed channel and configured to be movable within the recessed channel, a cover, the cover being coupled to the body portion and adapted to releasably secure the weight within the recessed channel, the cover having an outer surface and an opposite inner surface, and one or more windows extending through the cover between the outer surface and the inner surface; the cover including an upper rail, the upper rail extending along a toe-heel direction and protruding from the inner surface along a first direction; the cover including side rails, the side rails extending along a toe-heel direction and protruding from a side surface of the cover along a second direction different from the first direction, the cover, and one or more at least partially transparent window members, the one or more at least partially transparent window members being attached to the cover and overlapping one or more window openings, the weight having upper and side grooves shaped and sized to receive at least a portion of the upper and side rails, respectively, the upper grooves being proximal and distal to the striking face, respectively, and having front and rear surfaces on opposite sides that are at least partially substantially flat and a bottom surface connecting the front and rear surfaces, the side grooves being proximal and distal to the outer surface, respectively, and having upper and bottom surfaces on opposite sides that are at least partially substantially flat and a front surface connecting the upper and bottom surfaces, relating to a golf club head.

[0006] In some examples, the golf club head is a driver type golf club head, a metal wood type golf club head, or a hybrid type golf club head, and the outermost surface of the striking face is curved outwardly. In some examples, the weight assembly further includes a threaded fastener that connects the cover to the body portion and is configured to indirectly hold the weight only within the recessed channel. In some examples, the cover is movable via the threaded fastener at least between an unlocked configuration and a locked configuration. In the unlocked configuration, the cover is at least partially raised out of the recessed channel, and the weight is selectively movable within the recessed channel. In the locked configuration, the cover is at least partially disposed within the recessed channel, and the weight is completely hidden except when viewed through one or more windows. The weight assembly is configured such that the weight becomes visible under the cover before the upper rail is completely removed from the recessed channel when the cover is moved from the locked configuration towards the unlocked configuration. In some examples, the one or more window openings include a plurality of window openings disposed along the toe-heel direction of the golf club head. In some examples, the one or more window openings include only one elongated window opening disposed along the toe-heel direction of the golf club head.

[0007] According to another aspect, the present technology is a golf club head, the golf club head including a body portion, the body portion including a striking face having a lower leading edge and a sole extending from the lower leading edge, the striking face and the sole forming part of an outer surface of the body portion, and further, the golf club head including a recessed channel formed in the outer surface and a weight assembly, the weight assembly including a weight, the weight being at least partially disposed within the recessed channel and configured to be movable within the recessed channel, a cover connected to the body portion and adapted to releasably secure the weight within the recessed channel, the cover having one or more window openings adapted to identify the location of the weight within the recessed channel, and a threaded fastener connecting the cover to the body portion and selectively movable along the fastener axis between at least a first position and a second position by rotating about the fastener axis, the cover being movable via the threaded fastener between at least an unlocked configuration and a locked configuration, in the unlocked configuration, the cover being at least partially raised out of the recessed channel, the weight being selectively movable within the recessed channel, the threaded fastener being in the first position; in the locked configuration, the cover being at least partially disposed within the recessed channel, the weight being fixed within the recessed channel, the threaded fastener being in the second position, the weight assembly being configured to completely conceal the weight except when the cover is through one or more window openings when the cover is in the locked configuration, and further configured such that the weight becomes visually exposed from under the cover when the threaded fastener is rotated through a total rotation of three or less times about the fastener axis from the first position towards the second position, relates to a golf club head.

[0008] In some examples, the cover includes an upper rail that extends along the toe - heel direction of the golf club head and protrudes from an inner surface of the cover configured to face a recessed channel, and the weight has an upper groove shaped and sized to receive at least a portion of the upper rail. In some examples, the upper groove has front and rear surfaces on opposite sides, proximal and distal to the striking face respectively, and a bottom surface connecting the front and rear surfaces. In some examples, the upper groove is spaced from a front surface of the weight proximal to the striking face. In some examples, the cover includes side rails that extend along the toe - heel direction and protrude from side surfaces, and the weight has side grooves shaped and sized to receive at least a portion of the side rails. In some examples, the recessed channel includes a plurality of positioning lugs disposed along the toe - heel direction of the golf club head, and the weight is configured to engage with one or more of the positioning lugs such that when the recessed channel secures the weight within the recessed channel, the weight can be positioned within the recessed channel at a plurality of discrete locations corresponding to the plurality of positioning lugs.

[0009] This "Summary of the Invention" is provided to introduce, in a simplified form, a selection of concepts that are further described below in the "Detailed Description of the Invention". This "Summary of the Invention" is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

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

Brief Description of the Drawings

[0011]

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[0012] The present technology described herein contemplates a golf club head (such as a fairway metal, driver, or other golf club head) that includes an adjustable weight assembly. By adjusting the weight balance 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 allows the CG and / or MOI of the golf club head to be adjusted through selective weight placement, which can affect the flight characteristics of the golf ball (such as fade, draw, launch angle, ball spin, and speed). Additionally or alternatively, the weight assembly allows the swing weight of the golf club head to be adjustable (increasing or decreasing the weight of the club head).

[0013] In an example, the present technology provides a golf club head having a recessed channel defined therein. A slidable weight is disposed at least partially within the channel and secured therein by a cover and a fastener. The cover is configured to indirectly retain the weight within the channel, and the fastener is configured to never engage the weight. This configuration allows the size, shape, and / or density of the weight to be defined and enables fine adjustment of the CG and MOI of the golf club head. Additionally, the cover includes an additional mechanism that improves the securing of the weight within the channel and reduces unwanted rattling or movement during a golf club swing. Moreover, the weight assembly described herein allows the weight to be quickly and easily adjusted without requiring any component to be completely removed from the club head. Thereby, reducing components that are lost or mislaid during club head adjustment. In one aspect, the weight is engaged with the cover such that the two components can move together relative to the golf club head. Additionally, the weight is restricted from tilting relative to the cover to reduce or prevent the weight from being constrained within the channel.

[0014] FIG. 1 is a perspective view of sole 102 of golf club head 100 equipped with exemplary weight assembly 104. Golf club head 100 is a metalwood type golf club head having body portion 106, and body portion 106 includes striking face 108, and striking face 108 is positioned facing forward of club head 100 and has lower edge portion 110 and upper edge portion 112 (for example, shown in FIG. 8) extending between toe 114 and heel 116 of club head 100 respectively. Sole 102 extends from lower edge portion 110 on the bottom side of club head 100, and crown 118 extends from upper edge portion 112 on the upper part of club head 100. Sole 102, striking face 108, and crown 118 are connected together and are configured to define outer surface 120 of body portion 106 and include internal cavity 122 (shown in FIG. 2) formed therein. Hosel 124 is disposed on heel 116 and is configured to connect to a shaft (not shown). In some examples, skirt 126 (shown in FIG. 8) may form a part of club head 100 and is positioned between crown 118 and sole 102. In such examples and for the purposes of this application, crown 118 may still be considered to be attached or connected to sole 102 via skirt 126. Moreover, body portion 106 may form any type of club head (such as an iron type club head or a hybrid type club head) as required or desired.

[0015] In operation, the sole 102 generally provides the underside surface of the club head 100 when the club head 100 is positioned at address. The club head 100 defines a center of gravity (CG) and a moment of inertia (MOI), which affect the flight characteristics of a golf ball (not shown) when struck by the striking face 108. The weight assembly 104 is coupled to the club head 100 such that the CG and / or MOI of the club head 100 can be selectively adjusted as needed or desired. In an example, the weight assembly 104 includes a movable weight 128, a cover 130 configured to secure the weight 128 in place, and a fastener 132 for coupling the weight assembly 104 to one or more other portions of the club head 100. In some examples, the weight 128 can be formed from tungsten. In an example, the weight 128 can be between about 2 grams and 15 grams. In some particular examples, the weight 128 can be about 9 grams.

[0016] A recessed elongated channel 134 is formed in the outer 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 in other locations of the body portion 106 (e.g., the crown 118 or the skirt 126), as needed or desired. The channel 134 is sized and shaped to receive at least a portion of the weight 128, such that the weight 128 can slide therein. In an example, the channel 134 extends substantially linearly in the toe 114 - heel 116 direction, such that the CG and MOI of the club head 100 can be adjusted for a fade bias or a draw bias (by selectively moving the weight 128). The channel 134 can be angled offset from the plane of the striking face 108, as shown in FIG. 1. In other examples, the channel 134 may extend substantially parallel to the striking face 108. In an example, the fastener 132 is positioned proximate to the heel side of the channel 134. In other examples, the fastener 132 can be positioned at any other location with respect to the channel 134 to enable the weight assembly 104 to function as described herein. For example, it can be positioned at approximately the midpoint of the channel 134, or proximate to the toe side of the channel 134, as described with reference to FIG. 26.

[0017] During operation and through the use of fastener 132, cover 130 is connected to body portion 106, extends at least partially over channel 134, and is adapted to selectively secure weight 128 to club head 100. Additionally, cover 130 covers at least a portion of channel 134 and is adapted to reduce the accumulation of dust and dirt therein. However, fastener 132 is separated from weight 128 and secures weight 128 to club head 100 only indirectly (e.g., via cover 130). In an example, fastener 132 and cover 130 are adapted to hold weight 128 within channel 134 only by contact with cover 130, such that fastener 132 never engages weight 128. As described herein, when fastener 132 indirectly holds weight 128, fastener 132 never directly engages weight 128, and it is a separate component (e.g., cover 130) that directly engages weight 128 for attachment to club head 100.

[0018] Cover 130 can be loosened or completely removed from club head 100 via fastener 132, allowing weight 128 to slide within channel 134 and selectively adjust the CG and MOI as needed or desired. Since weight 128 is selectively movable, weight assembly 104 (e.g., fastener 132, weight 128, and cover 130) allows movement of weight 128, but also secures weight 128 to one or more portions of club head 100 such that unwanted movement (e.g., during a club swing) is reduced or prevented. By separating fastener 132 from weight 128, the size, shape, and / or density of weight 128 can be configured such that the CG and MOI of club head 100 can be more finely adjusted, thereby improving the performance of golf club head 100. Weight assembly 104 is further described below.

[0019] FIG. 2 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. FIG. 3 is a cross-sectional view of the weight assembly 104 taken along line 3-3 in FIG. 2. Referring to FIGS. 2 and 3 simultaneously, 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 such that movement is restricted. In an example, to lock the cover 130 to the body portion 106, the fastener 132 may be a threaded bolt that threadedly engages a nut 138 positioned within the heel end of the channel 134. In some examples, the nut 138 may be integrally formed within the body portion 106.

[0020] When the cover 130 is in the locked configuration 136, the outer surface 140 of the cover 130 is substantially aligned (e.g., coplanar) with the outer surface 120 of the body portion 106. Additionally, the fastener 132 defines a fastener axis 142. In an example, the fastener axis 142 is disposed at an angle 144 with respect 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 may move relative to the body portion 106. The angle 144 may be between about 0° (e.g., aligned with the plane 146) and about 88°. In an example, the angle 144 may be between about 20° and 50°. In one example, the angle 144 may be about 45°.

[0021] In an example, only a single fastener 132 is used to connect the cover 130 to the body portion 106, and the fastener 132 is positioned at the heel end of the weight assembly 104. As such, to connect the toe end of the cover 130 to the body portion 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 within one or more corresponding chambers 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 within the chambers 150 and are engaged with the chambers 150. At a position opposite the fastener 132, by engaging the cover 130 with the body portion 106, when the weight 128 is positioned away from the fastener 132, the cover 130 still allows fixation of the weight 128 within the channel 134 and reduces or prevents movement of the weight 128 in the locked configuration 136. In an example, the protrusions 148 extend in the toe-heel direction of the cover 130 and include at least one angled surface 152, and the at least one angled surface 152 is frictionally engaged with at least one corresponding angled surface 154 of the chamber 150. In some examples, the angled surfaces 152, 154 may be substantially parallel to the fastener axis 142. In other examples, the angled surfaces 152, 154 may be oriented at an angle different from the fastener axis 142 (e.g., at a steeper or shallower angle). Additionally or alternatively, the protrusions 148 and the chambers 150 may extend substantially orthogonally to the toe-heel direction (e.g., within and out of the page of FIG. 2).

[0022] Further, the cover 130 can be engaged with the main body 106 at one or more intermediate positions between the opposite end from the fastener 132. The sheet 156 may project into the channel 134 at a location between the toe end and the heel end (e.g., proximate the midpoint location of the channel 134). The sheet 156 is sized and shaped to be received within a corresponding notch 158 defined within the cover 130. When the weight assembly 104 is in the locked configuration 136, the sheet 156 is at least partially received within the notch 158 and is engaged with the notch 158. Also, this engagement between the cover 130 and the main body 106 at a position away from the fastener 132 fixes the weight 128 within the channel 134 and reduces or prevents movement of the weight 128 in the locked configuration 136. In an example, the sheet 156 extends in the toe - heel direction of the channel 134 and includes at least one angled surface 160, and the at least one angled surface 160 is frictionally engaged with a corresponding at least one angled surface 162 of the notch 158. In some examples, the angled surfaces 160, 162 may be substantially parallel to the fastener axis 142. In other examples, the angled surfaces 160, 162 may extend at an angle with respect to the bottom of the channel 134 between about 3° and 88°. In one example, the angled surfaces 160, 162 may extend at an angle of about 30° with respect to the bottom of the channel 134.

[0023] Also, the cam 164 may project into the channel 134 at a location between the toe end and the heel end (e.g., between the sheet 156 and the chamber 150). The cam 164 is sized and shaped to be received within a corresponding cutout 166 defined within 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. The cam 164 and the cutout 166 are further described below with reference to FIG. 4.

[0024] In the example, the cover 130 has long legs 168 and short legs 170 and is substantially L-shaped. In the locking configuration 136, the long legs 168 form the outer surface 140, and the short legs 170 extend into the channel 134. The channel 134 is formed by two opposing sidewall portions 172, 174 and a bottom track 176, and the bottom track 176 is offset from the outer surface 120 of the body portion 106. The long legs 168 of the cover 130 face the track 176 of the channel 134, and the short legs 170 of the cover 130 are adjacent to one of the sidewall portions 172. The sheet 156 and the cam 164 may project from the sidewall portion 172 of the channel 134, and corresponding notches 158 and cutouts 166 may be defined in the short legs 170 of the cover 130. When the weight 128 is fixed in the channel 134 in the locking configuration 136, the weight 128 is compressed between the cover 130 and one or more wall portions (e.g., the sidewall portion 174 and / or the track 176) of the channel 134. As such, the weight 128 is frictionally fixed to one or more portions of the club head 100 by the weight assembly 104.

[0025] Additionally, the weight 128 may be slidably coupled to the cover 130. The long legs 168 of the cover 130 may include a flange 178 extending therefrom. The flange 178 is sized and shaped to be at least partially received within a corresponding groove 180 defined in the weight 128. In the locking configuration 136, a portion of the weight 128 is not covered by the cover 130 and is exposed within the channel 134, and that portion is adapted to form a part of the outer surface 120 of the body portion 106. This allows the location of the weight 128 within the channel 134 to be easily determined by visual inspection.

[0026] FIG. 4 is a cross-sectional view of the club head 100 taken along line 2-2 in FIG. 1, showing the weight assembly 104 in the unlocked configuration 182. FIG. 5 is a cross-sectional view of the weight assembly 104 taken along line 5-5 in FIG. 4. Referring to FIGS. 4 and 5 simultaneously, when the weight assembly 104 is in the unlocked configuration 182, at least a portion of the cover 130 is lifted and raised out of the channel 134 such that the weight 128 is selectively slidable within the channel 134 (e.g., along the toe-heel direction 184). In an example, the fastener 132 may be coupled to the cover 130 (e.g., by a lock washer 186 (shown in FIG. 16)) such that the cover 130 moves along the fastener axis 142 (shown in FIG. 2) when the fastener 132 rotates. The cover 130 and the fastener 132 may be completely removed from the body portion 106, if desired or required, to completely remove the weight 128 from the channel 134. However, in an example, moving the weight assembly 104 between the lock configuration 136 (shown in FIGS. 2 and 3) and the unlocked configuration 182 does not require the weight assembly 104 to be detached from the body portion 106. As such, in the unlocked configuration 182, the cover 130 may remain coupled to the body portion 106, reducing the likelihood that components are lost or misaligned. In some examples, the fastener 132 and / or the nut 138 may include a hard stop (not shown) that prevents the fastener 132 from being completely disengaged from the threaded engagement with the club head 100, if desired or required.

[0027] Only a single fastener 132 is used to connect the cover 130 to the body portion 106, and since the fastener 132 is positioned at the heel end of the weight assembly 104, the cam 164 can be used to assist the toe end of the cover 130 in lifting out of the channel 134 in the unlock configuration 182. This allows the weight 128 to slide more easily due to its position away from the fastener 132. In an example, the cam 164 extends in the toe-heel direction of the channel 134 and includes at least one cam surface 188, and the at least one cam surface 188 is slidably engaged with a corresponding cam surface 190 of the cutout 166. As the cover 130 moves from the lock configuration 136 (where the cam 164 is received within the cutout 166) towards the unlock configuration 182, the cam surfaces 188, 190 slide relative to each other to lift the toe end of the cover 130. In some examples, a portion of the cover 130 can be supported on top of the cam 164 when the weight assembly 104 is in the unlock configuration 182. The cam surfaces 188, 190 can be substantially parallel to the fastener axis 142.

[0028] Additionally, in the unlock configuration 182, the notch 158 may lift away from the sheet 156 and disengage the angled surfaces 160, 162 (shown in FIG. 2). In the unlock configuration 182, the notch 158 may lift partially or fully for the sheet 156. Also, the protrusion 148 may lift away from the chamber 150. However, the protrusion 148 may remain at least partially engaged with the chamber 150 such that the weight 128 cannot slide out from the toe end of the cover 130 and remains in the channel 134 in the unlock configuration 182. Moreover, since the weight 128 is engaged with the cover 130 (e.g., the flange 178 and the groove 180), the weight 128 moves with the cover 130 between the lock configuration 136 and the unlock configuration 182. This enables the weight 128 to be more slidable in the unlock configuration 182.

[0029] In some examples, one or more of the weight 128, the cover 130, and the channel 134 may include complementary mechanisms (e.g., corresponding detents 192 on the cover 130 and corresponding recesses (not shown) on the weight 128) that index the location of the weight 128 to the channel 134 and / or the cover 130. These complementary indexing mechanisms may provide tactile feedback and / or audible feedback when the weight 128 is moved. Additionally, the complementary indexing mechanisms may also provide increased resistance to relative movement between the weight 128 and the channel 134 and / or the cover 130 when the weight assembly 104 is in the lock configuration 136.

[0030] FIG. 6 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 200. FIG. 7 is a cross-sectional view of the weight assembly 200 taken along line 7-7 in FIG. 6. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 6 and 7, the weight assembly 200 includes a recessed channel 202 defined in the sole 102 of the body portion 106 of the club head 100. However, the channel 202 extends substantially linearly in the front-to-back direction such that the CG and MOI of the club head 100 can be adjusted for launch angle bias. The channel 202 can be substantially orthogonal to the striking face 108 as shown in FIG. 6. In other examples, the channel 202 may extend at either an acute or obtuse angle to the 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 on the opposite side of the striking face 108, proximate to the rear of the channel 202. In other examples, the fastener 208 can be positioned at any other location relative to the channel 202 that enables the weight assembly 200 to function as described herein. For example, it can be positioned at approximately the midpoint of the channel 202 or proximate to the striking face 108 side of the channel 202.

[0031] In this example, channel 202 is formed by two opposing side walls (cover side wall 210 and undercut side wall 212) and a bottom track 214, which is offset from the outer surface 120 of the body portion 106. Also, a partial wall 216 extends from the bottom track 214. Here, cover 206 is positioned adjacent to cover side wall 210 and includes an angled surface 218. Thus, when weight assembly 200 is in a locked configuration (e.g., FIG. 7), cover 206 generates a compressive force 220 along angled surface 218, which acts in both the downward and transverse directions to secure weight 204 between cover 206 and undercut side wall 212. Accordingly, weight 204 is frictionally secured to one or more portions of club head 100 by weight assembly 200 and is at least partially beneath angled surface 218 and undercut side wall 212. Weight 204 is at least partially trapezoidal in cross-sectional shape, and the undercuts of side wall 212 and cover 206 assist in retaining weight 204 within channel 202. Additionally, cover 206 engages partial wall 216, and the portion of cover 206 remote from fastener 208 is restricted from moving (e.g., bending or flexing) within channel 202 toward undercut side wall 212. Moreover, partial wall 216 is substantially parallel to the fastener axis (not shown) of fastener 208, and cover 206 is guided between the locked and unlocked configurations. In some examples, weight assembly 200 includes a sheet / notch interface as described above, further engages cover 206 within channel 202, and may improve the securing of weight 204 to one or more portions of club head 100.

[0032] FIG. 8 is a perspective view of a golf club head 100 with another weight assembly 300. Certain components have been described above and thus are not necessarily described further. In this example, the club head 100 includes a skirt 126 that is positioned between the crown 118 and the sole 102 on the side opposite the striking face 108. The weight assembly 300 includes a recessed channel 302 defined within the skirt 126 of the main 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 main body 106. In other examples, the fastener 308 may be coupled to the toe 114 side of the main body 106, as desired or as necessary. The weight assembly 300 may include one or more of the weight assembly mechanisms described herein, allowing the CG and MOI of the club head 100 to be adjustable for fade-draw bias while securing the weight 304 in a locked configuration (as shown in FIG. 8).

[0033] FIG. 9 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 400. FIG. 10 is a top view of the golf club head 100 shown in FIG. 9 with a portion of the crown 118 removed. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 9 and 10, the weight assembly 400 includes a recessed channel 402 defined within the sole 102 of the body portion 106 of the club head 100, which extends 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, and the weight 404 is slidable on the bottom track 410. In this example, the fastener 408 (and also the nut 412 to which the fastener 408 is coupled) is offset from the track 410 and positioned rearwardly of the body portion 106. By offsetting the fastener 408 from the track 410, the length of the track 410 can be extended in the toe - heel direction such that the weight 404 can be positioned at a greater number of locations on the sole 102. In other examples, the fastener 408 can be offset from the track 410 and positioned forwardly of the body portion 106 and toward the striking face 108 as needed or desired.

[0034] In this example, one or more support ribs 414 may extend from the channel 402 into the internal cavity 122 of the body portion 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 such that the channel 402 is resistant to deformation when the cover 406 compresses the weight 404 therein. In some examples, the support ribs 414 may extend throughout the distance between the sole 102 and the crown 118 within the internal cavity 122.

[0035] FIG. 11 is a cross-sectional view of weight assembly 400 along line 11-11 in FIG. 9. FIG. 12 is a cross-sectional view of weight assembly 400 along line 12-12 in FIG. 9. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 11 and 12, weight assembly 400 is shown in a locked configuration such that weight 404 is secured within channel 402. In this example, weight 404 includes elastomeric material 416 (e.g., a rubber-based material), and elastomeric material 416 engages channel 402 and / or cover 406 to further improve the securing of weight 404 in the locked configuration. Additionally, elastomeric material 416 reduces rattling of weight 404 within channel 402 during club head swing.

[0036] In this example, channel 402 is formed from two opposing side walls 418, 420 and track 410. One side wall 420 may include elongated fins 422 that extend into channel 402. Weight 404 is sized and shaped to be at least partially received within channel 402 and includes a bottom surface 424 positioned adjacent to track 410 and slots 426 that engage fins 422. Additionally, on the opposite side of slots 426, weight 404 includes grooves 428 that engage flange 430 of cover 406. Elastomeric material 416 may be connected to weight 404 such that material 416 extends from bottom surface 424 and also into slots 426. In one example, elastomeric material 416 may be a unitary piece that extends through one or more holes in weight 404. In other examples, elastomeric material 416 may be attached to one or more outer surfaces of weight 404. In still other examples, at least a portion of elastomeric material 416 may form weight 404 itself.

[0037] During operation, when the cover 406 is in the locked configuration, the flange 430 engages the groove 428 of the weight 404, compressing the weight 404 into the channel 402. As such, the elastomeric material 416 may engage the tracks 410 and fins 422 of the channel 402. By engaging the elastomeric material 416 at two or more locations, the fixation of the weight 404 within the channel 402 is improved. This reduces unwanted movement and rattling of the weight 404 within the channel 402. In some examples, the elastomeric material 416 may deform when compressed within the channel 402. Since the cover 406 engages only a portion of the weight 404, when the cover 406 is lifted for the unlock configuration (not shown), the weight 404 is able to rotate 434 within the channel 402 and the elastomeric material 416 may disengage from the tracks 410 and fins 422. This rotational movement 434 allows the weight 404 to slide more easily within the channel 402 while in the unlock configuration. This is because the elastomeric material 416 is positioned at least partially away from the channel surface. In some examples, the elastomeric material 416 extending from the bottom surface 424 may only be adjacent to the groove 428 and is configured to increase the rotational movement 434 of the weight 404.

[0038] Cover 406 is substantially L-shaped in cross-section (see FIG. 12) and receives at least a portion of weight 404 therein. The cover includes a first leg 436 having a flange 430 and a second leg 438 adjacent to sidewall portion 418 of channel 402. Flange 430 may be substantially parallel to second leg 438 and is configured to increase the structural rigidity of cover 406 in the longitudinal direction. Second leg 438 may at least partially extend into recess 440 of track 410 and is configured to reduce bending of cover 406 while in the locked configuration. Additionally, in an example, protrusion 442 of cover 406 may be substantially cylindrical in shape. Protrusion 442 is received within a corresponding cylindrical chamber 444. The structure of this protrusion 442 and chamber 444 increases the engagement between cover 406 and body portion 106 in the locked configuration (as shown in FIG. 11). In some examples, the axis 446 of protrusion 442 may be substantially parallel to fastener axis 448. This orientation guides the movement of cover 406 between the locked and unlocked configurations. In some examples, protrusion 442 may include a tapered nose. In this example, weight 404 and channel 402 may include complementary mechanism 450, and complementary mechanism 450 indexes the location of weight 404 to channel 402.

[0039] Figure 13 is a cross-sectional view of another weight assembly 500. Certain components have been described above and thus are not necessarily described further. Similar to the examples described in FIGS. 9-12, in this example, the weight assembly 500 includes a recessed channel 502 defined within the body portion 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 a slot 508 of the weight 504 is engaged with a fin 510 of the channel 502. However, in this example, a bottom surface 512 of the weight 504 is positioned directly against a track 514 of the channel 502. Additionally, in this example, the bottom surface 512 of the weight 504 includes a hollow portion 516. The hollow portion 516 reduces the frictional sliding force on the weight 504 when the weight assembly 500 is in an unlocked configuration (not shown). Further, the hollow portion 516 allows the size and shape of the weight 504 to be formed while maintaining the required or desired mass and / or density of the weight 504. In some examples, an elastomeric material (not shown) may be disposed at least partially within the hollow portion 516.

[0040] Figure 14 is a perspective view of a sole 102 of a golf club head 100 with another weight assembly 600. Certain components have been described above and thus are not necessarily described further. The weight assembly 600 includes a recessed channel 602 defined within the sole 102 of the body portion 106 of the club head 100. The channel 602 has a substantially curved shape in the toe 114 - heel 116 direction such that the CG and MOI of the club head 100 can be adjusted for fade - draw bias. In some examples, the curve of the channel 602 matches the rear perimeter of the body portion 106 where the sole 102 and the crown 118 are joined together. The weight assembly 600 also includes a slidable weight 604, a cover 606, and a fastener 608.

[0041] In this example, the fastener 608 is positioned within the concave area in the curved channel 602 and is oriented towards the striking face 108 of the body portion 106. This position allows the weight 604 to be positioned adjacent to the rear perimeter of the body portion 106 and increases the adjustability of the CG and MOI of the club head 100 when compared to a case having a fastener 608 positioned within the convex area of the curved channel 602 and a weight 604 closer to the striking face 108. Additionally, the weight 604 may slide completely from the toe 114 side to the heel 116 side and may be positioned at any location within the channel 602 even while adjacent to the fastener 608. In other examples, the fastener 608 may be positioned within the convex area of the curved channel 602 as needed or desired. Also, the fastener 608 is 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 portion 106 (e.g., at each end of the channel 602).

[0042] FIG. 15 is a cross-sectional view of the club head 100 taken along line 15-15 in FIG. 14, showing the weight assembly 600. FIG. 16 is a cross-sectional view of the weight assembly 600 taken along line 16-16 in FIG. 14. FIG. 17 is a cross-sectional view of the weight assembly 600 taken along line 17-17 in FIG. 14. Certain components have been described above and thus are not necessarily described further. Referring to FIGS. 15-17 simultaneously, the weight assembly 600 is shown in a locked configuration, and the weight 604 includes a bottom surface 610 and a groove portion 612. A tab 614 is disposed adjacent to the groove portion 612. Additionally, the weight 604 includes an elastomeric material 614. In this example, the elastomeric material 614 is connected to the weight 604 and extends from the bottom surface 610 and also into the groove portion 612. The elastomeric material 614 is oversized with respect to the channel 602 (e.g., an overlap between 0.1 millimeter and 1.0 millimeter) such that the material 614 may deform while being compressed within the channel 602. In other examples, the elastomeric material 614 may be attached to the outer surface of the weight 604. In yet other examples, the elastomeric material 614 may at least partially form the weight 604 itself.

[0043] The cover 606 includes a flange 616 and is substantially C-shaped, and the flange 616 engages with the groove portion 612 of the weight 604. Additionally, the cover 606 includes an upper leg 618 and a side leg 620, and the side leg 620 is on the opposite side of the flange 616. The upper leg 618 has a greater thickness than the flange 616 and the side leg 620 and is configured to increase the structural rigidity of the cover 606 in the longitudinal direction. The fastener 608 is connected to the cover 606 by a lock washer 186, and the lock washer 186 allows the cover 606 to move along the fastener axis 622 and to raise and lower the cover 606 with respect to the channel 602 while allowing the fastener 608 to rotate with respect to the cover 606.

[0044] During operation, when the cover 606 is in the locked configuration, the flange 616 of the cover 606 is engaged 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 both the cover 606 and the channel 602, improving the fixation 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 and the elastomeric material 614 is deformed into the grooves 626 to facilitate the fixation of the weight 604 within the channel 602. Additionally, the tab 614 of the weight 604 may be positioned proximate to the outer surface 120 of the body portion 106 such that the position of the weight 604 may be visible. When the weight assembly 600 is in the unlocked configuration (not shown), the cover 606 is at least partially lifted out of the channel 602 such that the weight 604 may be selectively slidable therethrough, for example, via the tab 614.

[0045] Each end of the cover 606 may include a substantially cylindrical protrusion 628 that is received within a corresponding cylindrical chamber 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 the movement of the cover 606 between the locked and unlocked configurations. In some examples, the protrusion 628 may include a tapered nose. Additionally, the chamber 630 may open into the internal cavity 122 of the body portion 106 as shown in FIGS. 15 and 16. In other examples, the chamber 630 may be sealed from the internal cavity 122. Also, one or more support ribs 634 may extend from the track 624 into the internal cavity 122, if desired or as needed.

[0046] Figure 18 is an exploded perspective view of a golf club head 100 with another weight assembly 700. Certain components have been described above and, accordingly, are not necessarily described further. Similar to the examples described in FIGS. 14-17, in this example, the weight assembly 700 includes a recessed channel 702 defined within the body portion 106 of the club head 100, and the channel 702 has a shape that is substantially curved in the toe 114 - heel 116 direction. In some examples, the curve of the channel 702 matches the rear perimeter of the body portion 106, where the sole 102 and the crown 118 are joined together. Also, the weight assembly 700 includes a slidable weight 704, a cover 706, and a fastener 708. At each end of the cover 706, a protrusion 710 may extend for engagement within the channel 702.

[0047] Figure 19 is a cross-sectional view of the weight assembly 700 taken along line 19 - 19 in FIG. 18. Certain components have been described above and, accordingly, are not necessarily described further. The weight assembly 700 is shown in a locked configuration in FIG. 19, and the bottom surface 712 of the weight 704 is positioned directly against the track 714 of the channel 702. Additionally, in this example, the bottom surface 712 of the weight 704 includes a hollow portion 716. The hollow portion 716 reduces the frictional sliding force on the weight 704 when the weight assembly 700 is in an unlocked configuration (not shown). Also, the hollow portion 716 allows the size and shape of the weight 704 to be formed while maintaining the required or desired mass and / or density of the weight 704. In some examples, an elastomeric material (not shown) may be disposed at least partially within the hollow portion 716.

[0048] Additionally, cover 706 includes an angled surface 718 that abuts weight 704. As such, when weight assembly 700 is in a locked configuration (e.g., FIG. 19), cover 706 generates a compressive force 720 along angled surface 718 that acts in both the downward and transverse directions to secure weight 704 between cover 706 and the undercut sidewall portion 722 of channel 702. As such, weight 704 is frictionally secured by weight assembly 700 to one or more portions of club head 100.

[0049] FIG. 20 is a partial perspective cross-sectional view of another weight assembly 800. FIG. 21 is another cross-sectional view of weight assembly 800. Certain components are described above and thus are not necessarily described further. Referring simultaneously to FIGS. 20 and 21, the cross-sectional views are substantially along the longitudinal direction of the golf club head and are similar to the example described above with reference to FIGS. 16 and 17. Weight assembly 800 includes a recessed channel 802 defined within body portion 106. Weight assembly 800 also includes a slidable weight (not shown), a cover 804, and a fastener 806. In this example, channel 802 is defined by a bottom track 808 and two opposing sidewall portions 810, 812. Bottom track 808 includes an elastomeric material 814 coupled thereto that extends at least partially into channel 802. Elastomeric material 814 engages the weight and further improves securing of the weight within channel 802 in a locked configuration. Additionally, elastomeric material 814 reduces rattling of the weight during a swing of the club head. Additionally or alternatively, elastomeric material 814 may be coupled to one or more of sidewall portions 810, 812 as desired or required. In yet other examples, elastomeric material 814 may be coupled to cover 804.

[0050] 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 may extend into the undercut area 818 within the channel 802, securing the elastomeric material 814 within the channel 802. In other examples, the elastomeric material 814 may be attached within the channel 802 or the cover 804, as desired or required. The ends 816 of the elastomeric material 814 may 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 and unlocked configurations, as described herein.

[0051] FIG. 22 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 900 in a locked configuration. FIG. 23 is a cross-sectional view of the weight assembly 900 taken along line 23-23 in FIG. 22. Certain components have been described above and, thus, will not necessarily be described further. Referring simultaneously to FIGS. 22 and 23, the weight assembly 900 is shown in a locked configuration and includes a recessed channel 902 defined within the sole 102 of the body portion 106 of the club head 100. The channel 902 has a substantially curved shape in the toe 114 - heel 116 direction such that the CG and MOI of the club head 100 may be adjustable for fade - draw bias. In some examples, the curve of the channel 902 matches the rear perimeter of the body portion 106, where the sole 102 and the crown 118 are joined together. Also, the weight assembly 900 includes a slidable weight 904 on the toe side, a slidable weight 906 on the heel side, a toe - side cover 908, a heel - side cover 910, and a fastener 912.

[0052] In this example, the fastener 912 is disposed within the channel 902, approximately dividing the weight assembly 900 in half. By positioning the fastener 912 within the channel 902, the size of the weight assembly 900 on the club head 100 is reduced. Additionally, the mass of the fastener 912 is moved further rearward from the striking face 108 than in the examples described above. The weights 904, 906 extend from the inner convex sides of the covers 908, 910 as shown in FIG. 22. In other examples, the weights 904, 906 may extend from the outer concave sides of the covers 908, 910, as needed or desired. In this example, two slidable weights 904, 906 are described because the fastener 912 prevents the weights from completely sliding from the toe side to the head side of the channel 902 and back. In some examples, the weight assembly 900 may include only one slidable weight, and the fastener 912 and covers 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 may include only one slidable weight that requires the assembly to be completely disassembled to move the weight from the toe side to the head side and back. In still other examples, the weights 904, 906 may be completely removable from the channel 902, as needed or desired.

[0053] One end of each of the covers 908, 910 is engaged with the channel 902, for example, by a protrusion / channel interface as described herein, while the other, opposite ends of each of the covers 908, 910 are engaged with the fastener 912. In the example, the fastener 912 includes a washer 914 disposed below the head. The washer 914 is a substantially cylindrical flange extending from the threaded shaft, which engages corresponding grooves 916 in both of the covers 908, 910. When the weight assembly 900 is in the locked configuration, the covers 908, 910 are disposed in the channel 902 and are secured in place by the fastener 912 via the grooves 916 such that the weights 904, 906 cannot slide in the channel 902 and are locked in place. Additionally, the covers 908, 910 are coplanar with the outer surface 120 of the body portion 106. In some examples, the portions of the covers 908, 910 that define the grooves 916 may extend all the way to the bottom track 918 of the channel 902 such that over-tightening of the fastener 912 is reduced or prevented.

[0054] FIG. 24 is a perspective view of sole 102 of golf club head 100 with weight assembly 900 shown in an unlocked configuration. FIG. 25 is a cross-sectional view of weight assembly 900 along line 25-25 in FIG. 24. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 24 and 25, weight assembly 900 is shown in an unlocked configuration. When weight assembly 900 moves from the locked configuration (shown in FIGS. 22 and 23), fastener 912 is rotated so as to lift at least partially out of channel 902. Also, this movement of fastener 912 engages the ends of covers 908, 910, which are engaged with washer 914, to lift at least partially out of channel 902 and enable weights 904, 906 to slide within channel 902. In some examples, weights 904, 906 may be engaged with respective covers 908, 910 and are configured to lift away from track 918 to facilitate movement.

[0055] In some examples, covers 908, 910 and fastener 912 may be completely removed from body portion 106, if desired or as needed, to completely remove weights 904, 906 from channel 902. However, moving weight assembly 900 between the locked and unlocked configurations does not require weight assembly 900 to be detached from body portion 106. As such, in the unlocked configuration, covers 908, 910 remain connected to body portion 106, reducing the likelihood that components will be lost or misaligned.

[0056] In this example, when the covers 908, 910 are in the unlocked configuration, the ends of the covers 908, 910 (which are on opposite sides of the fastener 912 and are engaged with the channel 902 (e.g., a protrusion / channel interface)) remain engaged with the channel 902 and may form a pivot point about which the covers 908, 910 rotate. In other examples, the ends of the covers 908, 910 on opposite sides of the fastener 912 may at least partially lift out of the channel 902 as described herein. For example, it may be done through a cam and cutout interface as described above.

[0057] FIG. 26 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1000. FIG. 27 is a cross-sectional view of the weight assembly 1000 taken along line 27-27 in FIG. 26. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 26 and 27, the weight assembly 1000 includes a substantially linear recessed channel 1002 defined in the sole 102. The weight assembly 1000 also includes a slidable weight 1004, a cover 1006, and a fastener 1008. In this example, the fastener 1008 is positioned at approximately the midpoint of the channel 1002 and may be offset rearwardly of the club head 100. By positioning the fastener 1008 at the midpoint location, the distance between the fastener 1008 and the distal end of the cover 1006 is reduced and the engagement between the cover 1006 and the channel 1002 is improved for securing the weight 1004.

[0058] Similar to the example described above with reference to FIGS. 6 and 7, channel 1002 is formed by two opposing side walls (cover side wall 1010 and undercut side wall 1012) and a bottom track 1014, and bottom track 1014 is offset from the outer surface 120 of body portion 106. Also, a partial wall portion 1016 extends from bottom track 1014. Cover 1006 is positioned adjacent to cover side wall 1010 and includes an angled surface 1018. Thus, when weight assembly 1000 is in a locked configuration (e.g., FIG. 27), cover 1006 generates a compressive force along angled surface 1018, which acts in both the downward and transverse directions to secure weight 1004 between cover 1006 and undercut side wall 1012. Accordingly, weight 1004 is frictionally secured by weight assembly 1000 and is at least partially beneath angled surface 1018 and undercut side wall 1012. Additionally, cover 1006 is fully engaged with partial wall portion 1016 via groove 1020 such that the portion of cover 1006 remote from fastener 1008 is restricted from moving (e.g., bending or flexing) within channel 1002 toward undercut side wall 1012. Moreover, partial wall portion 1016 is substantially parallel to the fastener axis (not shown) of fastener 1008 and is configured to guide the movement of cover 1006 between the locked and unlocked configurations.

[0059] FIG. 28 is an exploded perspective view of the sole 102 of a golf club head 100 having another weight assembly 1100. FIG. 29 is a cross-sectional view of the weight assembly 1100. Certain components have been described above and thus will not necessarily be described further. Referring simultaneously to FIGS. 28 and 29, the weight assembly 1100 includes a substantially linear recessed channel 1102 defined within the sole 102. The weight assembly 1100 also includes a slidable weight 1104, a cover assembly 1106, and a fastener 1108. In this example, the fastener 1108 is positioned at approximately the midpoint of the channel 1102 and may be offset rearwardly of the club head 100. As described above, when the cover assembly 1106 is in a locked configuration, the cover assembly 1106 is coupled to the body portion 106 and the weight 1104 is fixed within the weight assembly 1100 without movement or rattling. In this example, the cover assembly 1106 is a four-piece assembly including a fastener member 1110, two opposing longitudinal members 1112, and a transverse member 1114.

[0060] When the cover assembly 1106 is moved toward a locked configuration (e.g., FIG. 29), the fastener 1108 is tightened to the body portion 106. The fastener 1108 engages the fastener member 1110 and moves the fastener member 1110 into the channel 1102 along a fastener axis (not shown). The fastener member 1110 has a tapered surface that engages both of the longitudinal members 1112 and causes the longitudinal members 1112 to also be pulled into the channel 1102 and generate a compressive force 1116 along the angled surface 1118 when the fastener member 1110 is pulled down within the channel 1102. The compressive force 1116 acts on the transverse member 1114 in both a downward and transverse direction, positioning the transverse member 1114 within the channel 1102 and compressing the weight 1104 between the transverse member 1114 and the sidewall portion 1120 of the channel.

[0061] Additionally, to reduce or prevent withdrawal of the weight assembly 1100 from the body portion 106, the transverse member 1114 may engage an undercut 1122 of the channel 1102. The compressive force 1116 from the longitudinal member 1112 is adapted to lock the transverse member against the undercut 1122 and prevent movement. Additionally or alternatively, a portion of the weight 1104 may engage a sidewall portion 1120 of the channel 1102 and is adapted to reduce withdrawal of the weight assembly 1100 from the body portion 106. Additionally, the fastener member 1110 also presses the longitudinal member 1112 away from the fastener 1108 (e.g., arrow 1124) such that the end 1126 of the member 1112 can engage a corresponding chamber 1128 in the channel 1102 and also be adapted to reduce withdrawal of the weight assembly 1100 from the body portion 106.

[0062] FIG. 30 is a perspective view of the sole 102 of the golf club head 100 with another weight assembly 1200. FIG. 31 is a cross-sectional view of the weight assembly 1200 taken along line 31-31 in FIG. 30. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 30 and 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, weight 1204, and fastener 1208 may be similar to any of the examples described above. However, in this example, the width 1210 of the cover 1206 extends toward the striking face 108 such that the cover 1206 forms a greater portion of the sole 102 and is not only adapted to cover a portion of the channel 1202.

[0063] In some examples, cover 1206 may form 75% or more of the surface area of sole 102. In other examples, cover 1206 may form 50% or more of the surface area of sole 102. In still other examples, cover 1206 may form 25% or more of the surface area of sole 102. In further examples, cover 1206 may be between about 10% and 90% of the surface area of sole 102. In other examples, cover 1206 may be between about 25% and 75% of the surface area of sole 102.

[0064] By expanding cover 1206 of weight assembly 1200, the golf club head structure forming sole 102 of body portion 106 can be reduced. In some examples, cover 1206 can be manufactured from a material that is lighter than the material from which body portion 106 is manufactured (e.g., composite material, plastic, etc.). As such, the weight saved by the configuration of the sole structure can be used elsewhere on club head 100, if desired or required, and can further enable adjustment of the CG and MOI of club head 100 to improve golf ball flight characteristics. In some examples, the weight saved by the sole structure can be returned and included into slidable weight 1204. For example, cover 1206 may reduce the weight of the sole structure by 11 grams or more, and some or all of that mass can then be included, at least in part, into weight 1204.

[0065] Cover 1206 can include a protrusion 1212 extending therefrom, and the protrusion 1212 is configured to engage a corresponding chamber 1214 in each end of the channel 1202 to increase the structural rigidity of the cover 1206 connection, as described in the above example. In one example, the protrusion 1212 is substantially cylindrical and may be parallel to the fastener axis 1216. On the opposite side of the cover 1206 from the fastener 1208, the cover 1206 includes a brace 1218 adjacent to an extended edge 1220, and the brace 1218 engages the remaining sole 102 of the club head 100 by friction to secure the edge 1220 to the body portion 106. In some examples, the brace 1218 may extend at an angle substantially parallel to the fastener axis 1216 and is configured to guide the movement of the cover 1206 between a locked configuration and an unlocked configuration, as described herein. The brace 1218 may include one or more brackets 1222 to increase the structural rigidity of the brace 1218.

[0066] FIG. 32 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 1300. Certain components have been described above and thus may not necessarily be described further. Similar to the examples described in FIGS. 30 and 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 adjacent to an extended edge 1308 of the cover 1302 toward the striking face 108. This example improves the fixation of the edge 1308 to the body portion 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 needed or desired. For example, toward the toe side 114, toward the heel side 116, centered on the cover 1302, etc.

[0067] FIG. 33 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 1400. Certain components have been described above and thus will not necessarily be described further. Similar to the examples described in FIGS. 30-32, 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 a substantially V-shaped extended edge 1406. Additionally, the cover 1402 is symmetric about the toe 114 - heel 116 direction. In other examples, the cover 1402 may be asymmetric about the toe 114 - heel 116 direction, as needed or desired.

[0068] FIG. 34 is a perspective view of the sole 102 of a golf club head 100 with another weight assembly 1500. Certain components have been described above and thus will not necessarily be described further. Similar to the examples described in FIGS. 30-33, 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 asymmetric about the toe side 114 direction. In other examples, the cover 1502 may be asymmetric about the heel side 116 direction, as needed or desired.

[0069] FIG. 35 is a perspective view of sole 102 of golf club head 100 with another weight assembly 1600. Certain components have been described above and thus are not necessarily described further. Similar to the examples described in FIGS. 30-34, weight assembly 1600 includes an enlarged cover 1602 that selectively secures slidable weight 1604 to one or more portions of club head 100. However, in this example, cover 1602 has a substantially C-shaped extended edge 1606. Additionally, cover 1602 is symmetric in the toe 114 - heel 116 direction. In other examples, cover 1602 may be asymmetric in the toe 114 - heel 116 direction, as desired or as required.

[0070] FIG. 36 is a perspective view of sole 102 of golf club head 100 with another weight assembly 1700. FIG. 37 is an exploded perspective view of weight assembly 1700. Certain components have been described above and thus are not necessarily described further. Referring simultaneously to FIGS. 36 and 37, a recessed channel 1702 is defined in sole 102 of body portion 106 of club head 100. Channel 1702 has a substantially curved shape in the toe 114 - heel 116 direction such that the CG and MOI of club head 100 can be adjusted for fade - draw bias (e.g., the "F" and "D" markings on cover 1706 of weight assembly 1700). In the example, the curve of channel 1702 substantially corresponds to the rear outer perimeter of body portion 106 (where sole 102 and crown 118 are joined together) and on the opposite side of striking face 108. Weight assembly 1700 includes slidable weight 1704, cover 1706, and fastener 1708.

[0071] In this example, the cover 1706 is substantially U-shaped and includes a toe end 1710 and an opposite heel end 1712. The fastener 1708 is connected to the cover 1706 by a lock washer 1714 (e.g., a retainer clip), which is positioned on the inner concave side of the cover 1706 at approximately the midpoint between the end 1710 and the end 1712. The fastener 1708 is a threaded bolt that threadedly engages a nut 1716 formed in the sole 102 of the body portion 106. The lock washer 1714 allows the cover 1706 to linearly move M (e.g., rise and fall) along the fastener axis 1718 (shown in FIG. 38) with respect to the recessed channel 1702 as the fastener 1708 rotates. The fastener 1708 is offset from the recessed channel 1702 toward the front of the body portion 106 and the 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 and the weight 1704 can be positioned at a greater number of locations on the sole 102. Additionally, by positioning the fastener adjacent to the inner concave side of the cover 1706, the weight 1704 is disposed closer to the outer perimeter of the body portion 106 and the weight 1704 is adapted to increase the adjustability of the CG and MOI of the club head 100.

[0072] Each end 1710, 1712 of the cover 1706 includes a protrusion 1720 extending therefrom. The protrusion 1720 is sized and shaped to be received within a corresponding chamber 1722 defined at an end of the recessed channel 1702 and within the sole 102 of the body portion 106. The protrusion 1720 may be substantially cylindrical in shape, increasing the engagement between the cover 1706 and the body portion 106 and restricting movement or rattling when the weight 1704 is fixed within the recessed channel 1702 by the cover 1706. The protrusion axis 1724 (shown in FIG. 38) of the protrusion 1720 is substantially parallel to the fastener axis 1718, facilitating guiding the movement of the cover 1706 relative to the recessed channel 1702.

[0073] During operation, the weight assembly 1700 is selectively movable between at least three configurations, enabling adjustment of the CG and MOI of the club head 100. More specifically, in a first or locked configuration, the cover 1706 is disposed at least partially within the recessed channel 1702, such that the weight 1704 is fixed within the channel 1702 and movement is restricted. This locked configuration is illustrated in FIG. 36. When the weight assembly 1700 is in the locked configuration, the protrusion 1720 is received at least partially within the chamber 1722 and engaged with the chamber 1722. By engaging the cover 1706 with the body portion 106 at its ends 1710, 1712, the cover 1706 still enables fixing of the weight 1704 within the channel 1702 and reduces or prevents movement of the weight 1704 in the locked configuration. The locked configuration is used when swinging the golf club head 100.

[0074] Additionally, the weight assembly 1700 can be positioned into at least two other configurations that allow the weight 1704 to selectively slide within the recessed channel 1702 and also allow the weight 1704 to be completely removable from the weight assembly 1700 and the club head 100. In a second configuration or weight movement configuration, the cover 1706 is partially raised out of the recessed channel 1702 to allow the position of the weight 1704 to be adjusted. However, the weight 1704 remains held within the weight assembly 1700 and cannot be completely removed from the club head 100. This configuration is illustrated in FIG. 40 and further described below. In a third configuration or weight removal configuration, the cover 1706 is positioned such that the weight 1704 can be completely removed, such that different weights (e.g., having different masses) can be used with the club head 100 to adjust the swing weight. This configuration is illustrated in FIG. 41 and further described below. However, in each of the three configurations, the cover 1706 remains attached to the body portion 106 such that the cover 1706 does not need to be completely removed. However, in some examples, the weight assembly 1700 may include a fourth configuration (not shown), whereby the cover 1706 can be completely removed from the body portion 106, if desired or as needed.

[0075] A partial wall portion 1726 is disposed within the recessed channel 1702. The weight 1704 has a corresponding recess 1728 (shown in FIG. 38) and is configured to slide along the partial wall portion 1726. The partial wall portion 1726 at least partially prevents the weight 1704 from being completely removed when the weight assembly 1700 is in the weight movement configuration. In some examples, the weight 1704 may include at least one positioning mechanism 1730 (FIG. 37). The mechanism 1730 is sized and shaped to engage one or more of a plurality of positioning lugs 1732 (shown in FIG. 39) extending from the cover 1706 when the weight assembly 1700 is in the locked configuration. The positioning lugs 1732 and the mechanism 1730 facilitate positioning the weight 1704 in a specific location within the recessed channel 1702. In an example, the positioning lugs 1732 are substantially frustoconical in shape and the positioning mechanism 1730 has a corresponding recessed shape. In other examples, the lugs 1732 and the mechanism 1730 can have any other shape and / or size that allows the cover 1706 and the weight 1704 to function as described herein.

[0076] FIG. 38 is a cross-sectional view of weight assembly 1700 along line 38-38 in FIG. 36. Certain components have been described above and thus will not necessarily be described further. As described above, weight 1704 is secured within channel 1702 recessed by cover 1706. Fastener 1708 positions and secures cover 1706 to the body portion 106 of the golf club head, and thus fastener 1708 only indirectly holds weight 1704. In some examples, a washer (not shown) can be positioned on fastener 1708 between body portion 106 and cover 1706. Recessed channel 1702 is formed, with respect to cross-section, by bottom track wall portion 1734 and side wall portion 1736, which are arranged in a substantially L-shaped configuration with corner 1738. In an example, corner 1738 has an angle of 90 degrees or less. In another aspect, corner 1738 has an angle less than 90 degrees such that side wall portion 1736 is undercut. As such, when weight assembly 1700 is in a locked configuration, cover 1706 presses weight 1704 like a wedge against side wall portion 1736 into corner 1738, frictionally securing weight 1704 within recessed channel 1702 and at least partially beneath side wall portion 1736.

[0077] Adjacent to corner 1738 and on bottom track wall portion 1734, partial wall portion 1726 extends in an upward direction, height H 1It has. The weight 1704 has a corresponding recess 1728 which receives at least a portion of the partial wall portion 1726. The partial wall portion 1726 at least partially houses the weight 1704 within the weight assembly 1700 when in the lock configuration and the weight sliding configuration. Also, the weight 1704 includes a tail 1740 which protrudes from the recessed channel 1702 and also protrudes from under the cover 1706. The tail 1740 of the weight 1704 provides a structure for the user to grip and slide the weight 1704 as needed or desired. Also, the tail 1740 is visible on the outer surface of the club head and is positioned such that its location can be easily determined by visual inspection. In this example, the tail 1740 at least partially corresponds to the shape of the bottom track wall portion 1734 of the recessed channel 1702. In other examples, the tail 1740 can have any other size and / or shape as needed or desired.

[0078] Figure 39 is a view of the inner surface 1742 of the cover 1706 of the weight assembly 1700 (shown in FIGS. 36 - 38). The cover 1706 is substantially U-shaped with a concave side for receiving a fastener at the aperture 1744. Proximate to the convex side, the inner surface 1742 has a plurality of positioning lugs 1732 which are configured to engage a positioning mechanism 1730 (shown in FIG. 37) within the weight 1704. When engaged (e.g., when in the first lock configuration), the cover 1706 wedges the weight against the side walls into the corners of the recessed channel. However, when the cover 1706 is raised out of the recessed channel, the positioning lugs 1732 disengage from the weight such that the weight can be moved (e.g., in the weight sliding configuration) or the weight can be completely removed (e.g., in the weight removal configuration).

[0079] Each end 1710, 1712 of the cover 1706 includes a protrusion 1720 that, in addition to the fastener, secures the cover 1706 to the body portion of the club head. In the example, the protrusion 1720 engages a chamber 1722 (shown in FIG. 37) in all three configurations of the weight assembly (e.g., the lock configuration, the weight movement configuration, and the weight removal configuration). Moreover, 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 sole of the body portion and into the internal cavity of the club head via the chamber 1722. In the example, the protrusion 1720 includes a plurality of flexible arms 1746 that are circumferentially spaced apart and form the substantially cylindrical protrusion 1720. As shown, the protrusion 1720 includes three individual flexible arms 1746. In other examples, the protrusion 1720 may include any other number of flexible arms 1746, as needed or desired (e.g., two, four, five, etc.).

[0080] Figure 40 is a cross-sectional view of the weight assembly 1700 along line 40-40 in Figure 36 and is in a weight sliding configuration. The protrusion 1720 has a distal end 1748 (with respect to the inner surface 1742 of the cover 1706), and the distal end 1748 is formed as a tapered nose. The cover 1706 can be press-fitted into the body portion 106 of the golf club head and extend completely into the internal cavity 122 through the chamber 1722. For example, the flexible arm 1746 can flex radially, extends through the chamber 1722, and is adapted to snap into place. This connection allows the cover 1706 to be fixed to and completely removed from the body portion 106 as needed or desired. 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, and at least one stop 1750 extends radially outwardly on the protrusion 1720. In the example, the stop 1750 is formed as part of the tapered nose. Also, the protrusion 1720 has a proximal end 1752 (with respect to the inner surface 1742 of the cover 1706), and the proximal end 1752 is formed as a substantially cylindrical post. The proximal end 1752 engages with the chamber 1722 by friction when the cover 1706 is in the locked configuration. This engagement facilitates fixing the weight 1704 in the recessed channel 1702 of the cover 1706 (in addition to the fastener). Additionally, at least one rib 1754 extends radially on the protrusion 1720. The rib 1754 is positioned between the distal end 1748 and the proximal end 1752 and is offset by a distance D 1 only.

[0081] From the lock configuration (shown in FIG. 36) (when the weight 1704 is fixed in the recessed channel 1702 of the cover 1706) to the weight movement configuration (shown in FIG. 40) (which allows the weight 1704 to slide within the recessed channel 1702), the threaded fastener 1708 is rotated so that the cover 1706 rises out of the recessed channel 1702. When the rib 1754 engages with the end wall portion 1756 of the chamber 1722, further movement of the cover 1706 is restricted, and the cover 1706 is raised to a height H 2 above the main body portion 106 of the club head. Thus, the cover 1706 indicates that the weight assembly 1700 is in the weight movement configuration. To move the weight assembly 1700 past the weight movement configuration to the weight removal position, additional force is induced into the weight assembly 1700 (e.g., via rotation of the fastener 1708) until the flexible arm 1746 bends, capable of overcoming the engagement between the rib 1754 and the chamber 1722, and the cover 1706 can be further raised out of the recessed channel 1702.

[0082] FIG. 41 is a cross-sectional view of the weight assembly 1700 along line 40-40 in FIG. 36 and is in the weight removal configuration. When the engagement between the rib 1754 and the end wall portion 1756 is forcibly overcome (e.g., via rotation of the fastener 1708 that drives the movement of the cover 1706), the weight assembly 1700 can move from the weight movement configuration (shown in FIG. 40) to the weight removal configuration. In the weight removal configuration, since the cover 1706 is further raised out of the recessed channel 1702, the weight 1704 can be completely removed from the recessed channel 1702. When the stop 1750 engages with the end wall portion 1756 of the chamber 1722, further movement of the cover 1706 is restricted, and the cover 1706 is raised to a height H 3 above. The height H 3 is the height H of the previous weight sliding configuration (shown in FIG. 40)2 is greater. Since this is the case, cover 1706 indicates that weight assembly 1700 is in a weight removal configuration and weight 1704 can be completely removed. In some examples, weight assembly 1700 can be moved past the weight removal configuration, enabling cover 1706 to be completely removed. In this case, additional force is induced into weight assembly 1700 until flexible arm 1746 bends, overcoming the engagement between stop 1750 and chamber 1722, allowing cover 1706 to be completely removed. In an example, stop 1750 is radially larger than rib 1754, such that the force required to completely remove cover 1706 is greater than the force required to move between the weight movement configuration and the weight removal configuration.

[0083] Since rib 1754 at least partially defines the weight movement configuration and stop 1750 at least partially defines the weight removal configuration, the distance D 1 (shown in FIG. 40) defines the height by which cover 1706 rises between two different configurations H 2 and H 3 and. In one aspect, distance D 1 may be about 5 millimeters. Additionally, in an example, distance D 1 is at least equal to the height H 1 (shown in FIGS. 37 and 38) of partial wall 1726, such that in the weight removal configuration, weight 1704 can be lifted from partial wall 1726 and removed from weight assembly 1700. In other examples, either rib 1754 or stop 1750 can be completely removed from cover 1706, and cover 1706 is configured to move between only two configurations as needed or desired.

[0084] FIG. 42 is a perspective view of the sole 1802 of another golf club head 1800 with another weight assembly 1804 in a locked configuration. The golf club head 1800 is a fairway metal type golf club head having a body portion 1806, and the body portion 1806 includes a striking face 1808 having a lower edge portion 1810 and an upper edge portion 1812 (shown in FIG. 43) each extending between a toe 1814 and a heel 1816. The sole 1802 extends from the lower edge portion 1810 on the bottom side of the club head 1800, and the crown 1818 extends from the upper edge portion 1812 at the top of the club head 1800. The sole 1802, the striking face 1808, and the crown 1818 are connected together and are adapted to define an outer surface 1820 of the body portion 1806 and include an internal cavity 1822 (shown in FIG. 44) formed therein. The hosel 1824 is disposed at the heel 1816 and is configured to connect to a shaft (not shown). The functions of the components (e.g., sole, striking face, crown, hosel, etc.) of the fairway metal type club head 1800 are the same as the component functions described above in the examples of the metal wood type golf club heads of FIGS. 1-41. However, the fairway metal type golf club head 1800 may strike a golf ball directly from the ground surface, thereby requiring or desiring a substantially smooth outer surface 1820 of the sole 1802 with no protruding portions. As shown in FIG. 42, the club head 1800 is a fairway metal type club head, however, the body portion 1806 may form any type of club head, such as, for example, an iron type club head, a hybrid type club head, or a metal wood type club head (e.g., the examples shown in FIGS. 1-41), as needed or desired. Moreover, the mechanism of the weight assembly 1804 described below may be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0085] In this example, the recessed channel 1826 is defined within the sole 1802 of the body portion 1806 of the club head 1800. The channel 1826 extends in the toe 1814 - heel 1816 direction such that the CG and MOI of the club head 1800 can be adjusted for fade - draw bias (e.g., the "F" and "D" markings on the cover 1830 of the weight assembly 1804). The weight assembly 1804 includes a slidable weight 1828 that is at least partially disposed within the channel 1826, a cover 1830 that at least partially extends over the channel 1826, and a fastener 1832 configured to couple the cover 1830 to the body portion 1806. The fastener 1832 indirectly holds the weight 1828 within the recessed channel 1826 via the cover 1830 such 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 section of the golf club head 1800. By "front section" it is meant that the weight 1828 is closer to the striking face 1808 than the outermost rear perimeter of the body portion 1806 (where the sole 1802 and the crown 1818 are joined together farthest from the striking face 1808).

[0086] As shown in FIG. 42, the weight assembly 1804 is in a locked configuration, the cover 1830 is at least partially disposed within the recessed channel 1826, and the weight 1828 is fixed within the channel 1826 and is restricted from movement. When the cover 1830 and the weight assembly 1804 are in the locked configuration, the weight 1828 is fully disposed within the channel 1826 and no portion of the weight 1828 extends above the outer surface 1820 of the body portion 1806. Additionally, 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 portion 1806 and no portion of the cover 1830 extends above the outer surface 1820 of the body portion 1806. Since the weight assembly 1804 is fully disposed within the recessed channel 1826 and is at least aligned with (or below) the outer surface 1820 of the body portion 1806, the smoothness of the outer surface 1820 of the club head 1800 is maintained, promoting good ground interaction.

[0087] FIG. 43 is a perspective view of sole 1802 of golf club head 1800 with weight assembly 1804 in an unlocked configuration. Certain components have been described above and thus are not necessarily described further. Through rotation of fastener 1832, cover 1830 can be at least partially raised out of recessed channel 1826 to an unlocked configuration. In the unlocked configuration, weight 1828 is selectively slidable within channel 1826 and is adapted to adjust CG and MOI as needed or desired. In this example, weight 1828 is engaged with cover 1830 such that weight 1828 moves with cover 1830 between the unlocked and locked configurations and further such that weight 1828 is at least partially raised out of recessed channel 1826 when in the unlocked configuration. FIGS. 42 and 43 illustrate and describe weight assembly 1804 in two different configurations (locked and unlocked), but it will be understood that weight assembly 1804 can be movable between three or more configurations as needed or desired. For example, weight assembly 1804 can be movable between at least three configurations (locked configuration, weight movement configuration, and weight removal configuration) as described above with reference to FIGS. 36-41.

[0088] FIG. 44 is a cross-sectional view of a golf club head 1800 with a weight assembly 1804 along line 44-44 in FIG. 42. FIG. 45 is a partial perspective cross-sectional view of the weight assembly 1804 along line 44-44 in FIG. 42. Referring to FIGS. 44 and 45 simultaneously, certain components have been described above and thus will not necessarily be described further. Fastener 1832 is a threaded bolt that threadedly engages a nut 1836 formed in sole 1802 of body portion 1806. Fastener 1832 is connected to cover 1830 by a lock washer 1838 such that linear movement (e.g., via rotation of fastener 1832) is transmitted to cover 1830 and cover 1830 is able to move into and out of recessed channel 1826 as described herein.

[0089] In this example, channel 1826 is defined by bottom track 1840 and two opposing side wall portions 1842, 1844. The first side wall portion 1842 is adjacent to the striking face 1808, and the second side wall portion 1844 is adjacent to the rear of the sole 1802. Cover 1830 has a long leg 1846 and a short leg 1848 and is substantially L-shaped. The short leg 1848 includes a portion that couples to fastener 1832, and both the short leg 1848 and the fastener 1832 are positioned adjacent to the second side wall portion 1844. Also, the short leg 1848 includes flange 1850. Weight 1828 includes groove 1852, which is sized and shaped to receive flange 1850. Weight 1828 is slidably engaged with cover 1830 and is also slidably engaged with flange 1850 that is at least partially received within groove 1852. This engagement between cover 1830 and weight 1828 allows weight 1828 to move with cover 1830 (e.g., rise out of channel 1826 and descend back into channel 1826) between a locked configuration (shown in FIG. 42) and an unlocked configuration (shown in FIG. 43), while also allowing weight 1828 to slide relative to cover 1830 in a toe-heel direction when the weight assembly is in the unlocked configuration. When cover 1830 is in the locked configuration, the long leg 1846 also substantially covers weight 1828 and serves to increase the smoothness of the outer surface 1820 of club head 1800.

[0090] The bottom track 1840 includes a plurality of bosses 1854 that extend into the channel 1826. In this example, there are three bosses 1854, each corresponding to the fade bias position of the weight 1828, the draw bias position of the weight 1828, and the central neutral position of the weight 1828, respectively. Additionally, the first side wall portion 1842 includes a plurality of dimples 1856, and the plurality of dimples 1856 correspond to the plurality of bosses 1854. The weight 1828 includes a hollow portion 1858 sized and shaped to receive the boss 1854 and a position indicator 1860 sized and shaped to be received within the dimple 1856. During operation, when the weight assembly 1804 is in the unlocked configuration (shown in FIG. 43), the weight 1828 is raised above the boss 1854 so that it can be selectively moved between the bosses 1854 and the dimples 1856 of the channel 1826. Once the weight 1828 is positioned, the weight assembly 1804 can be moved to the locked configuration (shown in FIG. 42), with the selected boss 1854 at least partially received within the hollow portion 1858 of the weight 1828 and the position indicator 1860 at least partially received within the selected dimple 1856.

[0091] 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 outer surface 1820 of the club head 1800. This enables the user to easily visually confirm the position of the weight 1828 on the club head 1800. Although three bosses 1854 and dimples 1856 are illustrated and described, it will be understood that any other number of bosses and dimple positioning mechanisms may be provided to define the position of the weight 1828 within the recessed channel 1826. For example, five sets of bosses and dimples may be provided. Additionally, the position indicator 1860 has a cutout such that when the cover 1830 is raised to the unlocked configuration (shown in FIG. 43), the position indicator 1860 slides completely out from the dimple 1856 and moves above the first side wall portion 1842 to be able to adjust the position of the weight 1828.

[0092] Also, the cover 1830 can include one or more protrusions 1862, and the one or more protrusions 1862 are sized and shaped to be received within corresponding chambers 1864 of the recessed channel 1826. The protrusions 1862 are configured to increase the engagement between the cover 1830 and the body portion 1806 and are adapted to limit movement or rattling when the weight 1828 is fixed within the recessed channel 1826 by the cover 1830. In some examples, the protrusions 1862 are similar to the protrusions described above with reference to FIGS. 36 - 41 and may include one or more flexible arms, tapered noses, stops, and at least one rib.

[0093] FIG. 46 is a bottom view of a golf club head 1800 with another weight assembly 1900. FIG. 47 is a perspective cross-sectional view of the golf club head 1800 with the weight assembly 1900 along line 47-47 in FIG. 46. Referring to FIGS. 46 and 47 simultaneously, certain components are described above and thus are not necessarily described further. Similar to the examples described in FIGS. 42-45, the weight assembly 1900 includes a cover 1902 that selectively secures a slidable weight 1904 within a recessed channel 1906. The weight 1904 is engaged with the cover 1902 such that the weight 1904 moves with the cover 1902 between two or more configurations. 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 from at least partially transparent material such that the position of the weight 1904 is visible to the user.

[0094] FIG. 48 is a perspective view of another golf club head 2000. FIG. 49 is a bottom view of the club head 2000 with another weight assembly 2002. Referring simultaneously to FIGS. 48 and 49, the golf club head 2000 is an iron-type golf club head and includes a striking face 2004 configured to strike a golf ball. The striking face 2004 is connected to a topline portion 2006, a toe portion 2008, and a heel portion 2010. Also, the toe portion 2008 and the heel portion 2010 are at least partially connected to the topline portion 2006. The heel portion 2010 is connected to a hosel 2012, and the hosel 2012 is configured to couple to a shaft (not shown). Also, the striking face 2004 is connected to a sole 2014. Further, the golf club head 2000 includes a back portion 2016, and the back portion 2016 is at least partially attached to the sole 2014, the topline portion 2006, the toe portion 2008, and the heel portion 2010.

[0095] The components of the golf club head 2000 (such as the striking face 2004, the topline portion 2006, the toe portion 2008, the heel portion 2010, and the back portion 2016) may be made of a metallic material (such as steel). The components of the golf club head 2000 may be formed through a casting process. Some of the components may be cast as a single piece, and the remaining portions of the components may be attached following the casting process. For example, the sole 2014, the topline portion 2006, the toe portion 2008, the heel portion 2010, and the back portion 2016 may be cast as a single piece. Then, the striking face 2004 may be attached to that single piece via welding or other suitable processes for attaching two club head components to each other. In such an example, the striking face 2004 may be an insert.

[0096] During operation, the sole 2014 generally provides the underside surface of the club head 2000 when the club head 2000 is positioned at address. The club head 2000 defines a center of gravity (CG) and a moment of inertia (MOI), which affect the flight characteristics of a golf ball when struck by the striking face 2004. The weight assembly 2002 is coupled to the club head 2000 such that the CG and / or MOI of the club head 2000 can be selectively adjusted as needed or desired. In this example, the weight assembly 2002 includes a movable weight 2018, a cover 2020 configured to secure the weight 2018 in place, and fasteners 2022 for coupling the weight assembly 2002 to one or more portions of the club head 2000. A recessed elongated channel 2024 is formed in the sole 2014 of the club head 2000 and sized and shaped to receive at least a portion of the weight 2018. Similar to the example described above, the fasteners 2022 are adapted to hold the weight 2018 in the channel 2024 only indirectly by the cover 2020. Additionally, the cover 2020 can be loosened or completely removed via the fasteners 2022, allowing the weight 2018 to slide within the channel 2024 and selectively adjust the CG and MOI as needed or desired.

[0097] In this example, the fasteners 2022 are positioned at the toe end of the weight assembly 2002 and aligned with the channel 2024. In other examples, the fasteners 2022 can be positioned at the heel end of the weight assembly 2002 as needed or desired.

[0098] FIG. 50 is a cross-sectional view of another weight assembly 2100. FIG. 51 is a schematic view of the weight assembly 2100. Referring to FIGS. 50 and 51 simultaneously, the recessed channel 2102 is defined within the body portion 2104 of the club head (e.g., club heads 100, 1800, and / or 2000 described above). The weight assembly 2100 includes a slidable weight 2106 and a cover 2108. A fastener (not shown) is used to hold the weight 2106 within the channel 2102. 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 liner 2112. The friction material 2112 is configured to engage the weight 2106 by friction when the cover 2108 is in the locked configuration. By engaging the weight 2106 with the cover 2108 by friction, the weight 2106 is secured within the channel 2102 while reducing or preventing rattling of the weight 2106 therein. In an example, the friction material can be a soft metal material (such as brass).

[0099] The friction material 2112 may include a plurality of groove portions 2114 on the mating surface with the weight 2106. In this example, the groove portions 2114 may be triangular in shape, although other shapes are also contemplated herein. When the clamping load 2116 is applied to the friction material 2112, the material deflects (as shown in FIG. 51) to hold the weight 2106 in place and matches a specific surface combination of the channel 2102, the weight 2106, and the cover 2108. Once deformation occurs and contact stress is established, the friction material 2112 will no longer deform further. By engaging the weight 2106 with the cover 2108 by friction, the weight 2106 can be positioned anywhere within the channel 2102, and an indexing mechanism need not be included. Additionally, by removing the indexing mechanism, the weight 2106 and the channel 2102 have a more substantially flat surface, which improves manufacturing efficiency.

[0100] In this example, the cover 2108 may also include one or more protruding notches 2118, and the one or more protruding notches 2118 engage corresponding cavities 2120 within the body portion 2104. The notches 2118 may be substantially circular in shape. The notches 2118 and the cavities 2120 are further described below with reference to FIGS. 52 and 53. Although the friction material 2112 is shown as being connected to the cover 2108, it will be understood that the friction material 2112 may additionally or alternatively be connected to the weight 2106.

[0101] FIG. 52 is a top view of the cover 2108 of the weight assembly 2100 (shown in FIG. 50). FIG. 53 is a side view of the cover 2108. Referring simultaneously to FIGS. 52 and 53, certain components are described above and thus are not necessarily described further. The cover 2108 includes a plurality of protruding notches 2118, and the plurality of protruding notches 2118 engage corresponding cavities 2120 in the body portion 2104. By engaging the cover 2108 in a plurality of locations, the cover 2108 is restricted or prevented from deviating from alignment with the outer surface of the body portion 2104 when securing the weight. As shown in FIG. 53, the side cavities may be tapered and adapted to receive the cover 1206 that slides at a predetermined angle.

[0102] FIG. 54 is a bottom view of another golf club head 2200 with another weight assembly 2202 in a locked configuration. The golf club head 2200 includes a body portion 2204 having a sole 2206, with the weight assembly 2202 disposed on the sole 2206. The body portion 2204 also includes a striking face and a crown (both not shown), and the body portion 2204 is adapted to have an outer surface 2208. In one aspect, the golf club head 2200 can be a fairway metal type golf club head, however, the body portion 2204 can form any type of club head, such as an iron type club head, a hybrid type club head, or a driver or other metal wood type club head (e.g., one or more of the examples shown in FIGS. 1 - 53). Additionally, the functions of the components of the club head 2200 (e.g., sole, striking face, crown, hosel, etc.) are the same as the component functions described above in FIGS. 1 - 53. Moreover, the mechanism of the weight assembly 2202 described below can be utilized additionally or alternatively in any type of club head described herein, and can be utilized as needed or desired.

[0103] In this example, the recessed channel 2210 is defined within the sole 2206 of the body portion 2204 of the club head 2200. The recessed channel 2210 extends in the toe - heel direction and enables the CG and MOI of the club head 2200 to be adjusted (e.g., for fade - draw bias). The weight assembly 2202 includes a slidable weight 2212 that is at least partially disposed within the channel 2210, a cover 2214 that at least partially extends over the channel 2210, and a fastener 2216 configured to couple the cover 2214 to the body portion 2204. The fastener 2216 indirectly holds the weight 2212 within the recessed channel 2210 via the cover 2214, enabling the weight 2212 to be used to adjust the CG and MOI of the club head 2200.

[0104] As shown in FIG. 54, the weight assembly 2202 is in a locked configuration, with the cover 2214 at least partially disposed within the recessed channel 2210 and the weight 2212 fixed within the channel 2210 and configured 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 portion 2204 and the cover 2214. This configuration enables the user to more easily determine the placement of the weight 2212 within the recessed channel 2210. Also, the weight assembly 2202 can be moved to an unlocked configuration as described herein. For example, via rotation of the fastener 2216, the cover 2214 can be at least partially raised out of the recessed channel 2210, enabling the weight 2212 to be repositioned.

[0105] In this example, the weight 2212 engages and overlaps with the cover 2214, and both are configured to move together between a locked configuration and an unlocked configuration. Moreover, this engagement is configured to reduce or prevent the weight 2212 from twisting and tilting relative to the cover 2214 as the weight 2212 rises and falls relative to the recessed channel 2210. As such, the weight 2212 is prevented from being constrained within the recessed channel 2210 during weight adjustment, thereby improving the performance of the weight assembly 2202.

[0106] FIG. 55 is a perspective cross-sectional view of the weight assembly 2202 along line 54-54 in FIG. 54. FIG. 56 is a cross-sectional view of the cover 2214 along line 54-54 in FIG. 54. Referring to FIGS. 55 and 56 simultaneously, the cover 2214 has a ledge portion 2218, and the ledge portion 2218 is configured to slidably engage with the weight 2212. In the example, the ledge portion 2218 faces the striking face of the club head and opens in a direction away from the fastener 2216. Additionally, the ledge portion 2218 extends in a toe-heel direction within the cover 2214. However, it should be understood that the ledge portion 2218 can be defined within the cover 2214 in any other orientation and / or direction, as necessary or desired, to achieve the adjustable weight functionality as described herein. When the cover 2214 is in the unlocked position, the weight 2212 is raised relative to the club head and is selectively slidable within the ledge portion 2218 and the recessed channel 2210 (shown in FIG. 54). Conversely, when the cover 2214 is in the locked position, the weight 2212 is at least partially disposed within and secured within the recessed channel 2210 and the ledge portion 2218 to limit or prevent movement of the weight 2212. In the example, the ledge portion 2218 provides an overlap of the cover 2214 with the weight 2212 and is configured to reduce the weight 2212 from being constrained within the recessed channel.

[0107] The shelf portion 2218 includes an outer wall portion 2220 and an opposite inner wall portion 2222. As described herein, the outer and inner wall portions of the shelf portion 2218 are related to the internal cavity of the main body portion 2204 of the club head (shown in FIG. 54). Thus, the outer wall portion 2220 is disposed proximate to the outer surface 2224 of the cover 2214. The weight 2212 is configured to be at least partially slidably received between the outer wall portion 2220 and the inner wall portion 2222 of the shelf portion 2218 and against the inner wall portion 2226 of the shelf portion 2218. The three wall portions of the shelf portion 2218 hold the weight 2212 within the cover 2214 and limit or prevent the weight 2212 from tilting with respect to the cover 2214 when the position of the weight 2212 is moved between the locked configuration and the unlocked configuration. This configuration limits the weight 2212 from being constrained within the weight assembly 2202 and thus improves the performance of the weight assembly 2202.

[0108] In an example, this position of the weight 2212 within the cover 2214 can be measured by an inclination angle 2228, which is defined as the angular position of the weight 2212 with respect to the outer wall portion 2220 of the shelf portion 2218. In one aspect, the inclination angle 2228 is substantially the same in both the unlocked configuration and the locked configuration. In another aspect, the inclination angle 2228 is substantially parallel to the outer wall portion 2220 of the shelf portion 2218 in both the unlocked configuration and the locked configuration. The weight 2212 has an outer surface 2230, and the outer surface 2230 is positioned directly against the outer wall portion 2220, the inner wall portion 2222, and the inner wall portion 2226 of the cover 2214 when received within the shelf portion 2218. Thus, the outer surface 2230 of the weight 2212 maintains its position directly against the wall portions of the shelf portion 2218 in both the unlocked configuration and the locked configuration.

[0109] The weight 2212 includes a position indicator 2232 that at least partially extends outward from the shelf portion 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 portion of the club head, enabling the user to easily determine the weight characteristics of the club head. Additionally, the position indicator 2232 can be disposed within dimples of a recessed channel (e.g., the dimples 1856 shown in FIG. 45). Further, the weight 2212 includes a hollow portion 2234 that is sized and shaped to receive a boss of a recessed channel (e.g., the boss 1854 shown in FIG. 45). In an example, the hollow portion 2234 is disposed adjacent to the inner wall portion 2222 of the shelf portion 2218.

[0110] Also, the cover 2214 can include one or more protrusions 2236 that are sized and shaped to be received within corresponding chambers (not shown) of a recessed channel. The protrusions 2236 are configured to increase the engagement between the cover 2214 and the golf club head body portion and are adapted to limit movement or rattling when the weight 2212 is fixed within the recessed channel by the cover 2214. Further, the protrusions 2236 are used to limit the extraction of the cover 2214 from the body portion 2204 (shown in FIG. 54) and are capable of generating a soft stop before completely unscrewing and extracting the cover 2214 from the body portion. In some examples, the protrusions 2236 are similar to the protrusions described above with reference to FIGS. 36 - 41 and may include one or more flexible arms, tapered noses, stops, and at least one rib.

[0111] In an example, the width 2238 of the outer wall portion 2220 relative to the inner wall portion 2226 is greater than the width 2240 of the inner wall portion 2222. This configuration allows the weight 2212 to be held within the shelf portion 2218 without being inclined and restrained within the weight assembly 2202. Additionally, the weight 2212 includes a hollow portion 2234 and a position indicator 2232, and the position indicator 2232 can extend out from the shelf portion 2218 and enable the functions of the weight assembly 2202 as described herein. For example, the inner wall portion 2226 allows the hollow portion 2234 of the weight 2212 to engage with a corresponding structure within a recessed channel. In one aspect, the width of the outer wall portion is approximately two to four times the width of the inner wall portion. In another aspect, the ratio of the width 2238 of the outer wall portion 2220 to the width 2240 of the inner wall portion 2222 is 2:1 or greater. In yet another aspect, the ratio of the width 2238 of the outer wall portion 2220 to the width 2240 of the inner wall portion 2222 is 3:1 or greater. In yet another aspect, the ratio of the width 2238 of the outer wall portion 2220 to the width 2240 of the inner wall portion 2222 is between approximately 2:1 and 4:1. It will be understood that other ratio values are contemplated herein and that they may not be explicitly listed above.

[0112] FIG. 57 is a perspective view of weight 2212. FIG. 58 is a schematic top view of weight 2212. Referring simultaneously to FIGS. 57 and 58 and FIG. 54, when the weight assembly 2202 is in the locked configuration, at least a portion of weight 2212 is exposed and visible between the outer surface of cover 2214 and the outer surface 2208 of body portion 2204. That is, a gap is at least partially formed between a portion of cover 2214 and body portion 2204, and weight 2212 at least partially fills this gap. For example, position indicator 2232 may be exposed and visible on golf club head 2200. This configuration allows the position of weight 2212 to be easily determined. However, weight 2212 is not completely exposed and visible. By reducing the portion of weight 2212 exposed on golf club head 2200, the smoothness between outer surface 1820 of club head 2200 and cover 2214 is increased. As such, golf club head 2200 has improved performance (e.g., striking a golf ball directly from the ground surface, aerodynamic performance, etc.) while also including the weight adjustable function via weight assembly 2202 as described herein.

[0113] In an example, approximately 0% to 30% of weight 2212 is exposed and visible between the outer surface 2208 of body portion 2204 and the outer surface of cover 2214 in the locked configuration. In one aspect, approximately 10% to 20% of weight 2212 is exposed between the outer surface 2208 of body portion 2204 and the outer surface of cover 2214 in the locked configuration. In yet another aspect, approximately 16% of weight 2212 is exposed. It is understood that other percentage values are contemplated herein and may not be explicitly listed above. Although not shown in the figures, weight 2212 can be made completely invisible without departing from the scope and content of the present invention.

[0114] Referring to FIG. 57, the percentage of the weight 2212 that is visible and exposed (e.g., portion 2242) may be based on the outer surface area 2230 of the weight 2212. As used herein, the outer surface 2230 of the weight 2212 includes two or more sides of the weight shape and the entire outer perimeter as illustrated in FIG. 57. For example, in one aspect, approximately 0% to 30% of the outer surface 2230 of the weight 2212 is exposed between the outer surface 2208 of the body portion 2204 and the outer surface of the cover 2214 in the locked configuration. In another aspect, approximately 10% to 20% of the outer surface 2230 of the weight 2212 is exposed between the outer surface 2208 of the body portion 2204 and the outer surface of the cover 2214 in the locked configuration. In yet another aspect, approximately 16% of the outer surface 2230 of the weight 2212 is exposed. Also, other percentage values are contemplated herein and it will be understood that they may not be explicitly listed above.

[0115] Referring to FIG. 58, the percentage of the weight 2212 that is visible and exposed (e.g., portion 2244) may be based on the planar surface area 2246 of the weight 2212. As used herein, the planar surface area 2246 is the surface area only on one protrusion side of the weight shape (e.g., the upper planar area). The upper planar area is illustrated in FIG. 58, but other weight sides (e.g., the right planar area, the left planar area, etc.) are also contemplated herein. For example, in one aspect, approximately 0% to 30% of the planar surface area 2246 of the weight 2212 is exposed between the outer surface 2208 of the body portion 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 weight 2212 is exposed between the outer surface 2208 of the body portion 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 weight 2212 is exposed. Also, other percentage values are contemplated herein, and it will be understood that they may not be explicitly listed above.

[0116] FIG. 59 is a schematic perspective view of an exemplary test module 2300 with another weight assembly 2302. FIG. 60 is a cross-sectional view of the weight assembly 2302 along line 60-60 in FIG. 59. FIG. 61 is another cross-sectional view of the weight assembly 2302 along line 61-61 in FIG. 59. Referring to FIGS. 59-61 simultaneously, the test module 2300 represents a golf club head as described herein and can be utilized to test and develop the mechanism of the weight assembly 2302 as needed or desired. The club head represented by the test module 2300 can be any type of club head described herein, including but not limited to, a metalwood type golf club head, a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. In one aspect, the club head represented by the test module 2300 is a metalwood type club head having a striking face, a sole extending from a lower edge of the striking face, and a crown extending from an upper edge of the striking face (not all three components are shown in FIGS. 59-60). In one aspect, a transition area where the sole and the crown are connected together on the opposite side of the striking face is known as the skirt of the club head, and the weight assembly 2302 is disposed at least partially on the skirt. As such, the weight assembly 2302 is disposed around the rear perimeter of the club head and is disposed proximate to where the sole and the crown are connected together. In one aspect, the weight assembly 2302 is disposed substantially at the rear portion of the club head on the opposite side of the striking face. An example of a weight assembly disposed on the skirt of a golf club head is shown in FIG. 8 and described above. In the example, the test module 2300 includes a body portion 2304 having an outer surface 2306, which represents the body portion of the club head.Additionally, bracket 2307 is coupled to body portion 2304 to facilitate testing and development, and bracket 2307 does not represent a club head. In one aspect, bracket 2307 is substantially triangular in shape.

[0117] In this example, a recessed channel 2308 is defined in outer surface 2306 of body portion 2304. Channel 2308 generally extends along a curve in a toe-heel direction such that the CG and MOI of the club head can be adjusted via weight assembly 2302. Weight assembly 2302 includes a weight 2310 that is at least partially disposed within channel 2308 and configured to slide therein, a cover 2312 that at least partially extends above channel 2308, and a fastener 2314 configured to couple cover 2312 to body portion 2304. Fastener 2314 is configured to indirectly hold weight 2310 within recessed channel 2308 via cover 2312 such that weight 2310 can be used to adjust the CG and MOI of the club head.

[0118] Similar to the examples described above, the weight assembly 2302 is configured to move between at least a locked configuration (shown in FIGS. 59 and 61) and an unlocked configuration (shown in FIG. 60). In the locked configuration, the cover 2312 is at least partially disposed within the recessed channel 2308, and the weight 2310 is fixed within the channel 2308 with restricted movement. In the unlocked configuration, the fastener 2314 allows the cover 2312 to move along the fastener axis, enabling the weight 2310 to slide relative to the cover 2312 and the body portion 2304. In one aspect, from the locked configuration, the fastener 2314 can rotate approximately 2 - 3 turns, which may release the cover 2312 from the locked configuration and allow the weight 2310 to slide at least partially within the recessed channel 2308. In another aspect, the fastener 2314 rotates approximately 2.5 turns, which may allow the weight 2310 to slide within the weight assembly 2302.

[0119] The cover 2312 has a first end 2316 and an opposite second end 2318. The fastener 2314 is coupled to the cover 2312 and the first end 2316 (e.g., via a lock washer) such that the fastener 2314 is used to attach the cover 2312 to the body portion 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 a corresponding chamber 2322 defined at an 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 portion 2304, while the protrusion 2320 of the second end 2318 engages the chamber 2322 of the channel 2308 such that the position of the weight 2310 within the recessed channel 2308 is held 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 to at least partially raise the cover 2312 out of the recessed channel 2308. This configuration allows the weight 2310 to slide and be repositioned on the body portion 2304 of the golf club head. In this example, the protrusion 2320 extends in a direction substantially parallel to the fastener axis such that the cover 2312 can be uniformly raised out of the recessed channel 2308. In one aspect, the chamber 2322 is formed as an undercut in the sidewall portion of the recessed channel 2308, and this undercut engages the protrusion 2320 of the cover 2312. The fastener 2314 is at the opposite end of the undercut.

[0120] To assist in positioning the weight 2310 at a preselected location within the recessed channel 2308, the cover 2312 includes at least one positioning lug 2324 extending from the inner surface of the cover 2312. The weight 2310 includes a corresponding hollow portion 2326 that is shaped and sized to receive at least a portion of the positioning lug 2324. As shown in FIG. 60, the cover 2312 has three positioning lugs 2324 spaced apart such that the hollow portion 2326 can selectively engage the lugs 2324 at three separate locations within the recessed channel 2308. In some embodiments, the positioning lugs 2324 may not be symmetric, for example, one side of the lug 2324 can have a steeper angled side than the shallower angled side on the opposite side. Moreover, in this example, the weight 2310 has a first inclined surface 2332 at one end and a second inclined surface 2334 at the opposite end, proximate to the sides of the hollow portion 2326. The first and second inclined surfaces 2332, 2334 are different and are configured to engage one of the steeper or shallower angled sides of the positioning lug 2324. This configuration allows the weight 2310 to be positioned between and selectively engage two positioning lugs 2324. As such, and as shown in FIG. 60, the weight 2310 can engage the cover 2312 at two additional separate locations within the recessed channel 2308 and between pairs of the positioning lugs 2324. When the positioning lug 2324 is engaged with the weight 2310, the weight 2310 is held more tightly within the cover 2312, reducing or preventing rattling and further movement of the weight 2310 in a locked configuration. Additionally, one or more of the positioning lugs 2324 can define the position of the weight 2310 on the golf club head. In other embodiments, the cover 2312 can have five positioning lugs 2324 spaced apart. Also, other numbers of positioning lugs 2324 are contemplated herein.Also, in other examples, it should be understood that the positioning lugs 2324 can be provided at all individual locations of the weight 2310, as needed or desired.

[0121] In this example, the weight 2310 is slidably engaged with the body portion 2304 within the recessed channel 2308. The body portion 2304 includes a partial wall portion 2328 disposed within the recessed channel 2308. The partial wall portion 2328 extends from the bottom of the recessed channel 2308, and the weight 2310 includes a recess 2330 that is shaped and sized to receive at least a portion of the partial wall portion 2328. By slidably engaging the partial wall portion 2328 and the recess 2330 of the weight 2310, the weight 2310 does not move with the cover 2312 when the cover is moved toward the unlocked configuration. This retention of the weight 2310 within the recessed channel 2308 allows the positioning lugs 2324 of the cover 2312 to disengage from the weight 2310 and allows the weight 2310 to slide and change position. Additionally, the orientation of the weight 2310 within the recessed channel 2308 can be held by the partial wall portion 2328 when the cover 2312 is in the unlocked configuration, enabling the weight 2310 to slide more easily to different positions.

[0122] FIG. 62 is a schematic perspective view of another test module 2400 with another weight assembly 2402. FIGS. 63A-63E are cross-sectional views of the weight assembly 2402 along line 63-63 in FIG. 62, with the weights 2410 in various different positions. FIG. 64 is another cross-sectional view of the weight assembly 2402 along line 64-64 in FIG. 62. Referring simultaneously to FIGS. 62-64, and similar to the examples described above in FIGS. 59-61, the test module 2400 represents a club head, which can be any type of club head described herein, as needed or desired. In one aspect, the weight assembly 2402 is disposed on the skirt of the club head and also disposed around the rear perimeter where the sole and crown are joined together. The test module 2400 includes a body portion 2404 having an outer surface 2406 representing the club head and a bracket 2407. A recessed channel 2408 is defined in the outer surface 2406 of the body portion 2404. The weight assembly 2402 includes a weight 2410 at least partially disposed in and configured to slide in the channel 2408, a cover 2412 at least partially extending above the channel 2408, and a fastener 2414 configured to couple the cover 2412 to the body portion 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 lock washer) and is adapted to be used to attach the cover 2412 to the body portion 2404. The second end 2418 of the cover 2412 includes a protrusion 2420. The protrusion 2420 of the second end 2418 engages a corresponding chamber 2422 defined at the end of the recessed channel 2408 and is configured to fix the second end 2418 to the body portion 2404.

[0123] In this example, to assist in positioning the weight 2410 at a preselected location within the recessed channel 2408, the body portion 2404 includes at least one positioning lug 2424 disposed within the recessed channel 2408. In one aspect, the positioning lug 2424 extends from the back wall of the recessed channel 2408 recessed with respect to the outer surface 2406. In another aspect, the positioning lug 2424 is substantially symmetric with two similar angled sides. The weight 2410 includes a corresponding hollow portion 2426 shaped and sized to receive at least a portion of the positioning lug 2424. Moreover, in this example, the weight 2410 has inclined surfaces 2432 at each end, proximate to the sides of the hollow portion 2426. The inclined surfaces 2432 are similar to each other and are configured to engage the angled sides of the positioning lug 2424. As shown in FIGS. 63A - 63E, the cover 2412 has three spaced - apart positioning lugs 2424 such that the weight 2410 can be selectively positioned at five individual locations within the recessed channel 2408. Also, other numbers of positioning lugs 2424 are contemplated herein. The positioning lugs 2424 are not evenly spaced in the heel - to - toe direction of the club head and have two different spacing distances. In the example, the positioning lug 2424 proximate to the fastener 2414 is disposed further spaced from the intermediate positioning lug 2424 than the positioning lug 2424 proximate to the projection 2420. In one aspect, the spacing between the fastener positioning lug 2424 and the intermediate positioning lug 2424 is approximately twice the spacing between the projection positioning lug 2424 and the intermediate positioning lug 2424. Additionally, in some examples, the positioning lug 2424 can be substantially conical in shape.

[0124] Starting from FIG. 63A, the weight 2410 is disposed adjacent to the fastener 2414, and the hollow portion 2426 is engaged with the positioning lug 2424 proximate to the fastener 2414. As such, a portion of the weight 2410 is positioned on both sides of the positioning lug 2424. The weight assembly 2402 is in a locked configuration such that the position of the weight 2410 relative to the body portion 2404 is fixed. In some embodiments, the distal side of the weight 2410 can be positioned directly against a portion of the end wall of the recessed channel 2408 and / or a portion of the cover 2412 that connects to the fastener 2414. Moving on to FIG. 63B, the weight assembly 2402 can be moved to an unlocked configuration to reposition the weight 2410 and to adjust the CG and / or MOI of the club head (e.g., at least partially raise the cover 2412 out of the recessed channel 2408 to allow the weight 2410 to slide). Once the weight 2410 is repositioned, the weight assembly 2402 can be moved to the locked configuration (as shown) to fix the position of the weight 2410. In this position, the weight 2410 is disposed between the two positioning lugs 2424 such that the hollow portion 2426 does not have the positioning lug 2424 received therein. Instead, the angled surface 2432 is engaged with each of the positioning lugs 2424.

[0125] In FIG. 63C, the hollow portion 2426 of the weight 2410 is engaged with the intermediate positioning lug 2424. At this position, one of the inclined surfaces 2432 is also engaged with the positioning lug 2424 proximate to the protrusion 2420. In FIG. 63D, the hollow portion 2426 of the weight 2410 is engaged with the positioning lug 2424 proximate to the protrusion 2420. At this position, one of the inclined surfaces 2432 is engaged with the intermediate positioning lug 2424. Finally, in FIG. 63E, the weight 2410 is disposed adjacent to the protrusion 2420 and between the positioning lug 2424 and the end wall portion of the recessed channel 2408. The hollow portion 2426 does not have a positioning lug 2424 received therein, and one of the inclined surfaces 2432 is engaged with the positioning lug 2424 proximate to the protrusion 2420. In an example, the far side of the weight 2410 can be positioned directly opposite a portion of the end wall of the recessed channel 2408 and / or a portion of the cover 2412 proximate to the protrusion 2420. When the positioning lug 2424 is engaged with the weight 2410, the weight 2410 is held more tightly within the recessed channel 2408, reducing or preventing rattling and further movement of the weight 2410 in the locked configuration. Additionally, one or more of the positioning lugs 2424 can define the position of the weight 2410 on the golf club head. In an example, by shifting the positioning lug 2424 proximate to the protrusion 2420 inwardly, the weight 2410 can slide more easily between all positions without being constrained. It will be understood that the spacing of the positioning lugs 2424 can take any other configuration as needed or desired. For example, the recessed channel 2408 can have five spaced-apart positioning lugs 2424, and at each position, the hollow portion 2426 of the weight 2410 is adapted to engage the positioning lug 2424. In other examples, three similarly spaced-apart positioning lugs 2424 can be used.

[0126] Additionally, weight 2410 is slidably engaged with cover 2412. Cover 2412 includes a flange 2428 extending from within cover 2412, and weight 2410 includes a groove 2430 that is shaped and sized to receive at least a portion of flange 2428. By slidably engaging groove 2430 of flange 2428 and weight 2410, weight 2410 is configured to move with cover 2412 when being moved toward an unlock configuration. This movement of weight 2410 enables weight 2410 to disengage from positioning lug 2424 and allows weight 2410 to slide and change its position.

[0127] FIG. 65 is a partial perspective view of an exemplary recessed channel 2500 within body portion 2502 of a test module. FIG. 66 is another partial perspective view of recessed channel 2500. Referring to FIGS. 65 and 66 simultaneously, body portion 2502 is schematically illustrated, the test module represents a club head, and the club head can be any type of club head described herein, as desired or as required. Recessed channel 2500 is configured to receive a slidable weight 2504, and a cover (not shown) is configured to selectively hold weight 2504 in different positions. The cover is connected to body portion 2502 by a fastener (not shown) that defines a fastener axis. Recessed channel 2500 includes a chamber 2506 that is sized and shaped to receive a corresponding protrusion (not shown) of the cover. Chamber 2506 is defined at an opposite end of recessed channel 2500 from the fastener location, and both ends of the cover are engaged with body portion 2502 to improve retention of weight 2504.

[0128] In this example, the recessed channel 2500 includes a lip 2508 proximate to the chamber 2506. The lip 2508 extends into the recessed channel 2500 and is configured to engage a cover in a corresponding duct (not shown). As such, when the cover is moved towards an unlocking configuration that allows the weight 2504 to slide within the recessed channel 2500, the end of the cover opposite the fastener remains at least partially engaged with the body portion 2502, reducing or preventing loosening of the end of the cover relative to the body portion 2502. The lip 2508 is elongated in a direction substantially parallel to the fastener axis, allowing movement of the cover as described herein. The lip 2508 can be positioned on the upper wall portion of the recessed channel 2500, as shown in FIG. 65, or on the bottom wall portion of the recessed channel 2500, as shown in FIG. 66, or both.

[0129] FIG. 67 is a schematic perspective view of another test module 2600 with another weight assembly 2602. FIG. 68 is a cross-sectional view of the weight assembly 2602 in a first configuration, taken along line 67-67 in FIG. 67. FIG. 69 is a cross-sectional view of the weight assembly 2602 in a second configuration, taken along line 67-67 in FIG. 67. Referring to FIGS. 67-69 simultaneously, and similar to the examples described above in FIGS. 59-64, the test module 2600 represents a club head, and the club head can be any type of club head described herein, as needed or desired. In one aspect, the weight assembly 2602 is disposed on the skirt of the club head and is also disposed around the rear perimeter where the sole and crown are joined together. The test module 2600 includes a body portion 2604 having an outer surface 2606 that represents the club head and a bracket 2607. A recessed channel 2608 is defined in the outer surface 2606 of the body portion 2604. However, in this example, the weight assembly 2602 includes a cover 2610 that is selectively oriented in the recessed channel 2608 and configured to be fixed to the body portion 2604, at least partially defining the weight position of the club head and adjusting the CG and MOI of the club head.

[0130] In this example, the weight assembly 2602 includes a cover 2610, which is removably coupled to the body portion 2604 and is at least partially within the recessed channel 2608. The cover 2610 has a first end 2612 and an opposite second end 2614. A fastener 2616 is attached to the first end 2612 of the cover 2610 (e.g., via a lock washer) and is configured to couple to the body portion 2604. Additionally, a first weight 2618 is disposed at the first end 2612 of the cover 2610. In this example, the first weight 2618 defines the first end 2612 of the cover 2610 itself, is removable from the second end 2614 of the cover 2610, and weights 2618 of different masses are interchangeable such that the cover 2610 can be formed as needed or desired. The second end 2614 of the cover 2610 includes a protrusion 2620 extending therefrom.

[0131] Each end of the recessed channel 2608 has a chamber 2622 and a fastener receiver 2624. The chamber 2622 is configured to engage with the protrusion 2620 of the cover 2610, and the fastener 2616 is configured to connect to the fastener receiver 2624. By having a symmetrically recessed channel 2608 at each end, the cover 2610 can be selectively connected to the body portion 2604, and the first weight 2618 can be oriented in either a first configuration (shown in FIG. 68) or a second configuration (shown in FIG. 69). In the first configuration, the first end 2612 of the cover 2610 is disposed on the heel side of the club head, and the first weight 2618 is positioned toward the heel side of the body portion 2604. In this configuration, the fastener 2616 is fixed to the fastener receiver 2624 on the heel side, and the protrusion 2620 of the cover 2610 engages with the chamber 2622 on the toe side. This leaves the fastener receiver 2624 on the toe side and the chamber 2622 on the heel side unused by the cover 2610. Conversely, in the second configuration, the first end 2612 of the cover 2610 is disposed on the toe side of the club head, and the first weight 2618 is positioned toward the toe side of the body portion 2604. In this configuration, the fastener 2616 is fixed to the fastener receiver 2624 on the toe side, and the protrusion 2620 of the cover 2610 engages with the chamber 2622 on the heel side. This leaves the fastener receiver 2624 on the heel side and the chamber 2622 on the toe side unused by the cover 2610. In this example, the cover 2610 has a dogbone type shape, and the position within the recessed channel 2608 can be switched as needed or desired.

[0132] Additionally or alternatively, a second weight 2626 can be coupled to corresponding weight chambers 2628 defined within the body portion 2604 and within the recessed channel 2608. The weight chambers 2628 are positioned at both ends of the recessed channel 2608 proximate to the fastener receiver 2624 and are covered by the cover 2610 when coupled to the body portion 2604. As such, the second weight 2626 is secured within the weight chambers 2628 by the cover 2610 and is indirectly retained by the fasteners 2616 of the weight assembly 2602. In some embodiments, the second weight 2626 may be at least partially threaded into the weight chambers 2628. It will be appreciated that the position and use of the second weight 2626 need not necessarily correspond to the orientation of the cover 2610 and need not be as illustrated in FIGS. 68 and 69. For example, the second weight 2626 can be used on the opposite side of the first weight 2618 and can be at least partially retained by the second end 2614 of the cover 2610. In another example, only the first weight 2618 can be utilized and the second weight 2626 may not be utilized. In yet another example, a pair of second weights 2626 can be used within a pair of weight chambers 2628. By using two or more weights 2618, 2626, the CG and MOI of the club head can be more finely adjusted as needed or desired.

[0133] FIG. 70 is a schematic perspective view of another test module 2700 with another weight assembly 2702. FIG. 71 is a partial cross-sectional view of the weight assembly 2702 in an unlocked configuration. FIG. 72 is a partial cross-sectional view of the weight assembly 2702 in a locked configuration. Referring simultaneously to FIGS. 70-72, and as in the examples described above in FIGS. 59-64 and 67-69, the test module 2700 represents a club head, which can be any type of club head described herein, optionally or desirably. In one aspect, the weight assembly 2702 is disposed on the skirt of the club head and also on the rear perimeter where the sole and crown are joined together. The test module 2700 includes a body portion 2704 having an outer surface 2706, which represents the club head. A recessed channel 2708 is defined in the outer surface 2706 of the body portion 2704. However, in this example, the weight assembly 2702 includes a cover 2710 pivotally connected to the body portion 2704 and a slidable weight 2712 for adjusting the CG and MOI of the club head. In one aspect, the cover 2710 is less dense than the weight 2712, such that a larger amount of mass can be used to manipulate the CG and MOI.

[0134] In this example, the cover 2710 has a first end 2714 and an opposite second end 2716. The fastener 2718 is attached to the first end 2714 of the cover 2710 (e.g., via a lock washer) and is configured to secure the first end 2714 to the body portion 2704 of the club head. The second end 2716 of the cover 2710 is pivotally connected to the body portion 2704. The weight 2712 is slidably connected to the cover 2710 and is movable between the first end 2714 and the second end 2716. In operation, the cover 2710 is pivotable about its second end 2716 at least between a locked configuration and an unlocked configuration (shown in FIG. 70). In the locked configuration, the fastener 2718 secures the first end 2714 of the cover 2710 to the body portion 2704, and the weight 2712 is at least partially disposed within the recessed channel 2708 and held therein by the cover 2710. The position of the weight 2712 within the recessed channel 2708 between the first end 2714 and the second end 2716 of the cover 2710 is thereby indirectly held by the fastener 2718. In the unlocked configuration, the first end 2714 of the cover 2710 pivots out of the recessed channel 2708, enabling the weight 2712 to be repositioned (e.g., slid along the cover 2710) as needed or desired. The unlocked configuration is illustrated in FIG. 70, and the weight 2712 moves with the cover 2710.

[0135] The second end 2716 of the cover 2710 can include a hook 2720 that is pivotally engaged with a post 2722 in the body portion 2704. The hook 2720 includes a hard stop 2724 that is configured to engage the body portion 2704 in the unlocked position and to define the pivot limit of the cover 2710. The hard stop 2724 can be tapered at one end to facilitate insertion of the second end 2716 of the cover 2710 into the body portion 2704 during assembly. In other examples, the second end 2716 of the cover 2710 can be pivotally connected to the body portion 2704 by a pin connection (not shown). The recessed channel 2708 includes one or more positioning lugs 2726 and can assist in positioning the weight 2712 as needed or desired. In one aspect, the weight 2712 can be positioned in two, four, or six discrete positions that are at least partially defined by the positioning lugs 2726. In this example, the weight 2712 is slidably engaged with the cover 2710 and pivots therewith. In other examples, the weight can be slidably engaged with the body portion and is configured not to pivot with the cover. This example is described below with reference to FIG. 73.

[0136] FIG. 73 is a cross-sectional view of another weight assembly 2750 that can be used with the test module 2700 (shown in FIG. 70). In this example, the weight assembly 2750 includes a pivotable cover 2752 and a slidable weight 2754. However, in this example, the weight 2754 is at least partially slidably engaged within the recessed channel 2708 of the body portion 2704 such that the weight 2754 does not pivot with the cover 2752. The weight assembly 2750 includes a rail 2756 that secures the weight 2754 to the body portion 2704 while still allowing the weight 2754 to slide. In the lock configuration as shown in FIG. 73, the cover 2752 secures the position of the weight 2754 relative to the body portion 2704 via the rail 2756.

[0137] FIG. 74 is an exploded perspective view of another test module 2800 with another weight assembly 2802. Similar to the examples described above in FIGS. 59-64 and FIGS. 67-72, test module 2800 represents a club head, and the club head can be any type of club head described herein, optionally or as desired. In one aspect, weight assembly 2802 is disposed on the skirt of the club head and also on the rear perimeter where the sole and crown are joined together. Test module 2800 includes a body portion 2804 having an outer surface 2806 that represents the club head and a bracket 2807. A recessed channel 2808 is defined in the outer surface 2806 of the body portion 2804. However, in this example, weight assembly 2802 includes a cover 2810 that is connected to body portion 2804 via a fastener 2812, and fastener 2812 is disposed proximate the center of cover 2810. Cover 2810 is configured to secure a slidable weight 2814 while allowing the position of weight 2814 to be selectively adjusted. Weight 2814 has an elongated U-shape and is adapted to receive a centrally mounted fastener 2812 such that a portion of weight 2814 can be disposed on both sides of fastener 2812. Cover 2810 has projections 2816 at each end that engage the recessed channel 2808. Recessed channel 2808 includes positioning lugs 2818 that assist in positioning weight 2814 and dimples 2820, and dimples 2820 receive at least a portion of position indicator 2822 of weight 2814.

[0138] FIG. 75 is a perspective view of the sole 2902 of another golf club head 2900 having another weight assembly 2904. FIG. 76 is a cross-sectional view of the weight assembly 2904 taken along line 76-76 in FIG. 75. FIG. 77 is a cross-sectional view of the weight assembly 2904 taken along line 77-77 in FIG. 75. Referring simultaneously to FIGS. 75-77, the golf club head 2900 is a metalwood type golf club head having a body portion 2906, and the body portion 2906 includes a striking face 2908 having a lower edge portion 2910 and an upper edge portion (not shown) extending between the toe 2912 and the heel 2914. The sole 2902 extends from the lower edge portion 2910 on the bottom side of the club head 2900, and the crown 2916 extends from the upper edge portion on the upper part of the club head 2900. The sole 2902, the striking face 2908, and the crown 2916 are connected together and are configured to define an outer surface 2918 of the body portion 2906 and include an internal cavity 2920 formed therein. The hosel 2922 is disposed on the heel 2914 and is configured to connect to a shaft (not shown). The functions of the components (e.g., sole, striking face, crown, hosel, etc.) of the metalwood type club head 2900 are similar to the component functions described above. The body portion 2906 may form any type of club head, such as a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 2904 described below can be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0139] In this example, the recessed channel 2924 is defined within the sole 2902 of the body portion 2906 of the club head 2900. The channel 2924 extends in the toe 2912 - heel 2914 direction such that the CG and MOI of the club head 2900 can be adjusted for fade - draw bias. In one aspect, the recessed channel 2924 can be defined within a transition area where the sole 2902 and the crown 2916 are joined together on the opposite side of the striking face 2908, which is known as the skirt of the club head 2900. As such, the recessed channel 2924 and the weight assembly 2904 are disposed around the rear perimeter of the club head 2900, proximate to where the sole 2902 and the crown 2916 are joined together. In one aspect, the recessed channel 2924 and the weight assembly 2904 are disposed substantially around the rear perimeter portion of the club head 2900 on the opposite side of the striking face 2908.

[0140] The weight assembly 2904 includes a slidable weight 2926, a cover 2928, and a fastener 2930. The slidable weight 2926 is at least partially disposed within a recessed channel 2924 and configured to slide therein. The cover 2928 at least partially extends above the channel 2924 and is adapted to releasably secure the weight 2926 within the recessed channel 2924. The fastener 2930 is configured to couple the cover 2928 to the body portion 2906. The fastener 2930 indirectly holds the weight 2926 within the recessed channel 2924 via the cover 2928 such that the weight 2926 can be used to adjust the CG and MOI of the club head. Similar to the example described above, the weight assembly 2904 is configured to move between at least a locked configuration (shown in FIG. 79 and further described below) and an unlocked configuration (shown in FIG. 80 and further described below). In the locked configuration, the cover 2928 is at least partially disposed within the recessed channel 2924 and the weight 2926 is fixed within the channel 2924 with its movement restricted. In the unlocked configuration, the fastener 2930 enables the cover 2928 to move along the fastener axis 2932, releasing the weight 2926 such that it can slide relative to the cover 2928 and the body portion 2906. Additionally, in this example, the cover 2928 is also capable of at least partially rotating towards a weight removal configuration (shown in FIG. 81 and further described below) relative to the recessed channel 2924 and the body portion 2906.

[0141] The body portion 2906 includes a partial wall portion 2934, and the partial wall portion 2934 is disposed within the recessed channel 2924. The partial wall portion 2934 extends from the bottom of the recessed channel 2924, and the weight 2926 includes a recess 2936 that is shaped and sized to receive at least a portion of the partial wall portion 2934. By slidably engaging the recess 2936 of the partial wall portion 2934 and the weight 2926, the weight 2926 does not move with the cover 2928 when the cover is moved toward the unlock configuration. To assist in positioning the weight 2926 at a preselected position within the recessed channel 2924, the cover 2928 includes at least one positioning lug 2938 that extends from the inner surface of the cover 2928. The weight 2926 includes a corresponding hollow portion 2940 that is shaped and sized to receive at least a portion of the positioning lug 2938. Thus, when the weight 2926 is engaged with the cover 2928, the weight 2926 is held more tightly within the cover 2928, reducing or preventing rattling and further movement of the weight 2926 in the locked configuration. In an example, the inner surface of the cover 2928 includes an inclined surface 2942 that is configured to engage a corresponding inclined surface 2944 on the weight 2926. The inclined surfaces 2942, 2944 are tapered in a predetermined direction such that their height above the bottom wall portion of the recessed channel 2924 increases and becomes greater in a direction away from the partial wall portion 2934. This configuration biases the weight 2926 in a direction toward the upper wall portion of the recessed channel 2924, inducing a compressive force on the weight 2926 between the cover 2928 and the recessed channel 2924 to secure the weight 2926 within the recessed channel 2924.

[0142] In this example, the cover 2928 is formed from a first portion 2946 and a second portion 2948. The fastener 2930 engages the first portion 2946 via a lock washer (not shown), and the entire cover 2928 is configured to be linearly movable 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 a corresponding chamber 2956 defined within the body portion 2906 and within the recessed channel 2924 such that when the weight assembly 2904 is in a locked configuration, the second end 2952 is configured to more tightly secure the weight 2926 within the recessed channel 2924. When the second end 2952 is not engaged with the recessed channel 2924, access to the weight 2926 is increased by allowing the second portion 2948 of the cover 2928 to rotate relative to the first portion 2946, and, if necessary or desired, and as illustrated in FIG. 81, allowing the weight 2926 to be completely removed from the club head 2900.

[0143] FIG. 78 is an exploded view of a cover 2928 of a weight assembly 2904 (shown in FIGS. 75-77). The cover 2928 includes a first portion 2946 that couples to a fastener 2930 and a second portion 2948. In an example, the first portion 2946 and the second portion 2948 can be separate and separable from each other individually. In other examples, the first portion 2946 and the second portion 2948 can be fixed to each other but still rotatable relative to each other. The first portion 2946 has a first end 2958 with a bore that is shaped and sized to receive and couple to the fastener 2930. The bore extends in a direction along a fastener axis 2932. The first portion 2946 also has an opposite second end 2960 that is configured to rotatably couple to the second portion 2948. The second end 2960 has a cylinder 2962 that is spaced apart from the first end 2958 and that extends in a direction substantially orthogonal to the fastener axis 2932. The cylinder 2962 rotatably engages the second portion 2948 and defines a rotation axis for the second portion 2948 to rotate relative to the first portion 2946.

[0144] The second portion 2948 extends between a first end 2950 and a second end 2952. The first end 2950 has a hook 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 some embodiments, the outer surface 2966 of the hook 2964 is rounded such that the second portion 2948 can rotate about the cylinder 2962. The hook 2964 is at least partially formed by an arm 2968 that is elongated and engages the sidewall of the bore of the first portion 2946 such that rotation of the second portion 2948 is partially limited. This configuration allows the second portion 2948 to move with the first portion 2946 when the first portion 2946 moves linearly along the fastener axis 2932. In some examples, the hook 2964 can snap fit around the cylinder 2962 such that a separating force is required to separate the two portions 2946, 2948. The second end 2952 of the second portion 2948 includes a protrusion 2954. A cutout 2970 is formed extending between the first end 2950 and the second end 2952 of the second portion 2948 and is sized and shaped to at least partially receive the weight 2926 (shown in FIGS. 76 and 77). Positioning lugs 2938 and an angled surface 2942 of the cover 2928 are formed within the cutout 2970.

[0145] FIG. 79 is a perspective view of the weight assembly 2904 in the locked configuration. In the locked configuration, the fastener 2930 is fastened to the body portion 2906 of the club head, and the cover 2928 is engaged with the body portion 2906 and is at least partially within the recessed channel 2924 and is adapted to fix the position of the weight 2926 within the recessed channel 2924. In the locked configuration, the fastener 2930 indirectly holds the weight 2926 within the recessed channel 2924 via the cover 2928. The first end of the first portion 2946 of the cover 2928 is fixed to the body portion 2906 by the fastener 2930. The second end of the second portion 2948 of the cover 2928 is fixed to the body portion 2906 via the protrusion 2954 (shown in FIG. 78), and rotation of the second portion 2948 relative to the first portion 2946 is prevented. Between the first portion 2946 and the second portion 2948, the engagement of the hook 2964 and the cylinder 2962 (shown in FIG. 78) limits the separation of the portions 2946, 2948 from each other in the locked configuration. To release the weight 2926 from its fixed position, the fastener 2930 is used to move the weight assembly 2904 toward the unlock configuration described below with reference to FIG. 80.

[0146] FIG. 80 is a perspective view of the weight assembly 2904 in the unlock configuration. In the unlock configuration, the fastener 2930 is loosened relative to the body portion 2906 of the club head. When the fastener 2930 is loosened, the cover 2928 moves linearly along the fastener axis 2932 (shown in FIG. 78) and at least partially rises out of the recessed channel 2924. In the unlock configuration, the cover 2928 releases the weight 2926 and allows the weight 2926 to slide within the recessed channel 2924. The first end of the first portion 2946 of the cover 2928 remains fixed to the body portion 2906 by the fastener 2930 in the unlock configuration.

[0147] In some examples, the second end of the second portion 2948 of the cover 2928 can remain partially engaged with the body portion 2906 via the protrusion 2954 (shown in FIG. 78) in the unlocked configuration, such that rotation of the second portion 2948 relative to the first portion 2946 is restricted and the weight 2926 cannot be removed from the recessed channel 2924. However, the weight 2926 can still slide and can be repositioned as needed or desired. In this example, 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 and is configured to position the cover 2928 in the weight removal configuration, as described below with reference to FIG. 81. In other examples, in the unlocked configuration, the cover 2928 is raised and the protrusion 2954 is disengaged from the recessed channel 2924 without further movement along the fastener axis 2932. In this example, the cover 2928 is positioned such that it can be moved toward the weight removal configuration without further movement via the fastener 2930, as described below with reference to FIG. 81.

[0148] FIG. 81 is a perspective view of a weight assembly 2904 in a weight removal configuration. In the weight removal configuration, a first portion 2946 of the cover 2928 is at least partially raised out of the recessed channel 2924, and a protrusion 2954 of a second portion 2948 of the cover 2928 is disengaged from a chamber 2956 defined within the recessed channel 2924. This disengagement enables the second portion 2948 of the cover 2928 to open toward the weight removal configuration by rotating with respect to the first portion 2946 and by rotating in an outward direction with respect to the body portion 2906 of the club head. A fastener 2930 is not required to be used to open the second portion 2948 of the cover 2928. The rotation of the second portion 2948 occurs about a rotation axis that is substantially orthogonal to a fastener axis 2932 (shown in FIG. 78). By opening the cover 2928, the weight 2926 can be completely removed from the recessed channel 2924, if desired or as needed. Additionally, when the second portion 2948 is rotated with respect to the first portion 2946 of the cover 2928, the engagement of a hook 2964 and a cylinder 2962 (shown in FIG. 78) restricts the portions 2946, 2948 from separating from each other in the weight removal configuration.

[0149] FIG. 82 is a perspective view of the sole 3002 of another golf club head 3000 with another weight assembly 3004. FIG. 83 is a cross-sectional view of the weight assembly 3004 taken along line 83-83 in FIG. 82. Referring simultaneously to FIGS. 82 and 83, the golf club head 3000 includes a body portion 3006, a striking face 3008, a lower edge portion 3010, an upper edge portion (not shown), a toe 3012, a heel 3014, a crown 3016, an outer surface 3018, an internal cavity 3020, and a hosel 3022, and their functions are the same as those of the components described above. The body portion 3006 may form any type of club head as described herein, such as a metalwood type club head, a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 3004 described below can be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0150] In this example, the recessed channel 3024 is defined in the sole 3002 and / or in a transition area (e.g., a skirt) where the sole 3002 and the crown 3016 are joined together. The channel 3024 extends in the toe 3012 - heel 3014 direction, and the CG and MOI of the club head 3000 can be adjusted for fade - draw bias. In one aspect, the recessed channel 3024 and the weight assembly 3004 are disposed substantially in the rear peripheral portion of the club head 3000 on the opposite side of the striking face 3008.

[0151] The weight assembly 3004 includes a slidable weight 3026, a cover 3028, and a fastener 3030. The slidable weight 3026 is at least partially disposed within the recessed channel 3024 and is configured to slide therein. The cover 3028 at least partially extends above the channel 3024 and is adapted to releasably secure the weight 3026 within the recessed channel 3024. The fastener 3030 is configured to connect the cover 3028 to the body portion 3006. Similar to the example described above, the weight assembly 3004 is configured to move between at least a locked configuration (shown in FIG. 85 and further described below) and an unlocked configuration (shown in FIG. 86 and further described below). In the locked configuration, the cover 3028 is at least partially disposed within the recessed channel 3024 and the weight 3026 is fixed within the channel 3024 with its movement restricted. In the unlocked configuration, the fastener 3030 allows the cover 3028 to move along the fastener axis 3032 and enables the weight 3026 to slide relative to the cover 3028 and the body portion 3006. Additionally, in this example, the cover 3028 is also capable of at least partially rotating towards a weight removal configuration (shown in FIG. 87 and further described below) relative to the recessed channel 3024 and the body portion 3006. Additionally, the body portion 3006 includes a partial wall 3034 that slidably engages with the weight 3026, and the cover 3028 includes at least one positioning lug 3036 to facilitate positioning of the weight 3026.

[0152] FIG. 84 is a perspective view of the cover 3028 of the weight assembly 3004 (shown in FIGS. 82 and 83). Continuing to refer to FIG. 83, the cover 3028 has a first end 3038 and an opposite second end 3040. The second end 3040 has a protrusion 3042, which is similar to other examples herein, and the protrusion 3042 is configured to engage a corresponding chamber 3044 defined in the body 3006 and in the recessed channel 3024. Thus, when the weight assembly 3004 is in the locked configuration, the second end 3040 tightly secures the weight 3026 to the body 3006. In some examples, a duct 3046 is defined in the cover 3028, which is configured to engage a corresponding lip (not shown) extending from the recessed channel 3024. This duct and lip mechanism facilitates the sliding engagement of the second end 3040 of the cover 3028 with the recessed channel 3024 in the body 3006, as further described above with reference to FIGS. 65 and 66. The first end 3038 of the cover 3028 engages an enlarged head 3048 of a fastener 3030, and the fastener 3030 is freely rotatable relative to the cover 3028. In this example, the fastener 3030 is not connected to the cover 3028 by a lock washer, and the fastener 3030 is lacking a lock washer.

[0153] The first end 3038 of the cover 3028 has a holder 3050, which is defined on the inner surface of the cover 3028 and is shaped and sized to receive the enlarged head 3048 of the fastener 3030. The holder 3050 has an inner surface 3052 that is larger than the enlarged head 3048, such that the enlarged head 3048 is free to rotate within the holder 3050. In the example, the inner surface 3052 has a first sidewall portion 3054 that is substantially parallel to the fastener axis 3032 and a second sidewall portion 3056 on the opposite side that is tapered with respect to the fastener axis 3032. In one aspect, the second sidewall portion 3056 is oriented such that the gap between the first sidewall portion 3054 and the second sidewall portion 3056 increases in a direction toward the outer surface of the cover 3028. When the fastener 3030 is tightened or loosened from the body portion 3006 of the club head, the enlarged head 3048 is positioned against the first sidewall portion 3054 of the inner surface 3052, as illustrated in FIG. 83. This configuration aligns the cover 3028 along the fastener axis 3032 such that the cover 3028 can move linearly along the fastener axis 3032 and engage or disengage the protrusion 3042 with respect to the chamber 3044. However, when the fastener 3030 is loosened from the body portion 3006 (e.g., the enlarged head 3048 is raised from the body portion 3006 along the fastener axis 3032) and the cover 3028 is disengaged from the body portion 3006, the second end 3040 of the cover 3028 can also be angled away from the body portion 3006 through the orientation of the second sidewall portion 3056. This movement of the cover 3028 allows the cover 3028 to rotate at least partially about the fastener axis 3032 toward a weight removal configuration, as illustrated in FIG. 87 and further described below.

[0154] Also, the inner surface 3052 of the holder 3050 includes an outer axial wall portion 3058 that is substantially orthogonal to the fastener axis 3032. The outer axial wall portion 3058 axially confines the enlarged head 3048 into the holder 3050 along the fastener axis 3032 such that when the enlarged head 3048 is loosened and raised relative to the body portion 3006 of the club head, a corresponding linear movement is induced over the cover 3028 without the use of a lock washer. The outer axial wall portion 3058 can include an aperture 3060 such that a tool (not shown) can access the enlarged head 3048. In one aspect, the aperture 3060 has a diameter smaller than the diameter of the enlarged head 3048. The opposite inner axial wall portion 3062 is configured to at least partially engage around the enlarged head 3048 such that when the enlarged head 3048 is tightened and lowered relative to the body portion 3006, a corresponding linear movement is induced over the cover 3028 without the use of a lock washer. Additionally, the holder 3050 is a protruding component of the cover 3028 (e.g., via the inner axial wall portion 3062) having an outer surface 3064 that extends at least partially circumferentially around the fastener axis 3032. As such, the outer surface 3064 is curved and at least partially cylindrical in shape. In one aspect, the outer surface 3064 is curved and extends at least 180° around the fastener axis 3032. The outer surface 3064 facilitates rotation of the cover 3028 relative to the body portion 3006 when the cover 3028 is at least partially raised out of the recessed channel 3024.

[0155] In an example, the holder 3050 is accessible from either the top or bottom of the cover 3028 and allows the fastener 3030 to be at least partially inserted into the holder 3050 (e.g., an enlarged head 3048). The cover 3028 is connected to the body portion 3006 via the fastener 3030 and when at least partially inserted into the recessed channel 3024, the holder 3050, since it is a projecting mechanism, is at least partially inserted into the recessed channel 3024 such that the cover 3028 is restricted or prevented from being separated from the enlarged head 3048 without completely withdrawing the holder 3050 from the recessed channel 3024.

[0156] FIG. 85 is a perspective view of the weight assembly 3004 in a locked configuration. In the locked configuration, the fastener 3030 is fastened to the body portion 3006 of the club head and the cover 3028 is engaged with the body portion 3006 and at least partially within the recessed channel 3024 so as to fix the position of the weight 3026 within the recessed channel 3024. In the locked configuration, the fastener 3030 holds the weight 3026 within the recessed channel 3024 indirectly via the cover 3028. The first end of the cover 3028 is fixed to the body portion 3006 by the fastener 3030. The second end of the cover 3028 is fixed to the body portion 3006 via a protrusion 3042 (shown in FIG. 83) such that rotation of the cover 3028 is prevented. To release the weight 3026 from its fixed position, the fastener 3030 is used via access by an aperture 3060 to move the weight assembly 3004 towards an unlock configuration described below with reference to FIG. 86.

[0157] FIG. 86 is a perspective view of the weight assembly 3004 in the unlock configuration. In the unlock configuration, the fastener 3030 is loosened with respect to the body portion 3006 of the club head. When the fastener 3030 is loosened, the cover 3028 moves linearly along the fastener axis 3032 (shown in FIG. 83), and also at least partially rises out of the recessed channel 3024 by engaging the fastener head with the outer axial wall portion of the holder 3050. In the unlock configuration, the cover 3028 releases the weight 3026, allowing the weight 3026 to slide within the recessed channel 3024. The first end of the cover 3028 remains fixed to the body portion 3006 by the fastener 3030 in the unlock configuration.

[0158] In some examples, the second end of the cover 3028 can remain partially engaged with the body portion 3006 via the protrusion 3042 in the unlock configuration, such that rotation of the cover 3028 is restricted and the weight 3026 cannot be removed from the recessed channel 3024. However, the weight 3026 can still slide and can be repositioned as needed or desired. In this example, 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 and position the cover 3028 in the weight removal configuration, as described below with reference to FIG. 87. In other examples, in the unlock configuration, the cover 3028 is raised and the protrusion 3042 is disengaged from the recessed channel 3024 without further movement along the fastener axis 3032. In this example, the cover 3028 is positioned such that it can be moved toward the weight removal configuration without further movement via the fastener 3030, as described below with reference to FIG. 87.

[0159] FIG. 87 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 raised out of the recessed channel 3024, and the projection 3042 of the second end 3040 is disengaged from the chamber 3044 defined within the recessed channel 3024. This disengagement enables the second end 3040 of the cover 3028 to be angled away from the body portion 3006 of the club head and rotated about the axis of the fastener 3030 to open towards the weight removal configuration. For example, the fastener head is positioned against the second side wall portion 3056 (shown in FIG. 83), the second end 3040 is angled away from the body portion 3006, 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, if necessary or desired. Additionally, the holder 3050 of the fastener 3030 (shown in FIG. 83) still projects at least partially into the recessed channel 3024 such that the cover 3028 cannot be completely removed from the body portion 3006 of the club head without further movement of the fastener 3030. This configuration allows both the cover 3028 and the fastener 3030 to remain connected to the body portion 3006 in the weight removal configuration.

[0160] FIG. 88 is a perspective view of the sole 3102 of another golf club head 3100 having another weight assembly 3104. The golf club head 3100 includes a body portion 3106, a striking face 3108, a lower edge portion 3110, an upper edge portion (not shown), a toe (not shown), a heel 3112, a crown 3114, an outer surface 3116, an internal cavity (not shown), and a hosel 3118, and their functions are the same as those of the components described above. The body portion 3106 may form any type of club head as described herein, such as a metalwood type club head, a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 3104 described below may be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0161] In this example, a channel 3120 is defined by the body portion 3106, and the channel 3120 is a through-opening that extends through the body portion 3106 between a toe-side opening 3122 and a heel-side opening 3124. In some examples, the channel 3120 may be separated from the internal cavity of the body portion 3106 by a channel wall portion. In other examples, the channel 3120 may be at least partially open into the internal cavity of the body portion 3106. The channel 3120 may be disposed in the sole 3102 and / or in a transition area (e.g., a skirt) where the sole 3102 and the crown 3114 are connected together. The channel 3120 extends in the toe-heel direction such that the CG and MOI of the club head 3100 can be adjusted for fade-draw bias. In one aspect, the channel openings 3122, 3124 are disposed substantially in the rear peripheral portion of the club head 3100 on opposite sides of the striking face 3108 and the front-rear centerline of the club head 3100.

[0162] The weight assembly 3104 includes a slidable weight 3126 that is slidably engaged with the cover 3128, and a fastener 3130 configured to couple the cover 3128 to the body portion 3106. The cover 3128 has a first end 3132 and an opposite second end 3134. The fastener 3130 is coupled to the first end 3132 (e.g., via a lock washer), and the cover 3128 extends in a direction along the fastener axis. Both the first end 3132 and the second end 3134 of the cover 3128 have outer surfaces that are shaped and sized to mate with and not extend from the outer surface 3116 of the club head 3100 when fixed to the club head 3100. Similar to the example described above, the weight assembly 3104 is configured to move between at least a locked configuration (not shown) and an unlocked configuration (shown in FIG. 88). In the locked configuration, the cover 3128 is inserted into the channel 3120 such that the weight 3126 is fully disposed within the channel 3120 and within the body portion 3106 of the club head 3100. The position of the weight 3126 on the cover 3128 is fixed within the channel 3120 when the weight assembly 3104 is in the locked configuration. As such, the fastener 3130 indirectly holds the weight 3126 within the channel 3120 via the cover 3128. In the unlocked configuration, the fastener 3130 allows the cover 3128 to be at least partially withdrawn along the fastener axis from the channel 3120 such that the weight 3126 is at least partially withdrawn from the channel 3120. When the weight 3126 is withdrawn from the body portion 3106, the weight 3126 is slidable relative to the cover 3128 for removal and / or repositioning on the cover 3128. As such, the position of the weight 3126 on the cover 3128 is adjustable, and the weight assembly 3104 is used to adjust the GC and MOI of the club head 3100.

[0163] In this example, the inner surface of the cover 3128 includes at least one positioning lug 3136 spaced along the fastener axis. The weight 3126 includes one or more corresponding hollow portions 3138 shaped and sized to receive at least a portion of the positioning lug 3136. Additionally, when the positioning lug 3136 is engaged with the hollow portion 3138, the weight 3126 is held more tightly by the cover 3128, reducing or preventing rattling and further movement of the weight 3126 in the locked configuration. In one aspect, the cover 3128 can include a shelf portion 3140, and the weight 3126 is supported by the shelf portion 3140. The shelf portion 3140 allows the weight 3126 to be withdrawn from the channel 3120 when the weight assembly 3104 is moved to the unlocked configuration.

[0164] 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 connected to the body portion 3106 of the club head 3100 in the unlocked configuration. In other examples, the cover 3128 can be completely removable from the body portion 3106 of the club head 3100, if desired or as required. By fixing the slidable weight 3126 into the body portion 3106 of the club head 3100, the aerodynamic performance of the outer surface 3116 of the club head 3100 can be improved.

[0165] FIG. 89 is a perspective view of the sole 3202 of another golf club head 3200 having another weight assembly 3204 in a locked configuration. The golf club head 3200 includes a body portion 3206, a striking face 3208, a lower edge portion 3210, an upper edge portion (not shown), a toe (not shown), a heel 3212, a crown 3214, an outer surface 3216, an internal cavity (not shown), and a hosel 3218, and their functions are similar to those of the components described above. The body portion 3206 may form any type of club head as described herein, such as a metalwood type club head, a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 3204 described below can be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0166] In this example, channel 3220 is defined by body portion 3206 to support weight assembly 3204. Channel 3220 can include a first channel 3222 and a second channel 3224 that communicate with each other. The first channel 3222 is defined within sole 3202 of body portion 3206 and extends in the fore-aft direction of clubhead 3200 with the striking face 3208 in front of the clubhead 3200. The second channel 3224 is defined within sole 3202 and / or within a transition area (e.g., a skirt) where sole 3202 and crown 3214 are joined together. The second channel 3224 extends in the toe-heel direction such that the CG and MOI of clubhead 3200 can be adjusted for fade-draw bias. In one aspect, the second channel 3224 is disposed substantially around the rear portion of clubhead 3200 on the opposite side of the striking face 3208. As such, the first channel 3222 and the second channel 3224 are oriented in substantially orthogonal directions and are also oriented on different planes of clubhead 3200.

[0167] The weight assembly 3204 includes a slidable weight 3226 (shown in FIG. 91) that is slidably engaged with the cover 3228, and a fastener 3230 configured to couple the cover 3228 to the body portion 3206. In this example, the cover 3228 includes a fastener tab 3232 and a weight tray 3234. The fastener tab 3232 is sized and shaped to be received within a first channel 3222, and the weight tray 3234 is sized and shaped to be received within a second channel 3224. The fastener 3230 is coupled to the fastener tab 3232 (e.g., via a lock washer) and the weight tray 3234. The fastener 3230 is configured to cooperate with both the fastener tab 3232 and the weight tray 3234 to hold and secure the weight 3226 within the body portion 3206 of the club head 3200. Similar to the example described above, the weight assembly 3204 is configured to move between at least a locked configuration (shown in FIG. 89) and an unlocked configuration (shown in FIG. 90 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 fixed within the body portion 3206 of the club head 3200 with its movement restricted. In the unlocked configuration, the fastener 3230 releases the cover 3228 from the body portion 3206, enabling the weight assembly 3204 to move toward a weight adjustment configuration (shown in FIG. 91 and further described below). In the weight adjustment configuration, the position of the weight 3226 within the weight tray 3234 can be adjusted as needed or desired.

[0168] In the locked configuration, both the fastener tab 3232 and the weight tray 3234 are positioned within the body portion 3206 of the club head 3200 such that they do not protrude and are aligned with the outer surface 3216 of the club head 3200. Additionally, the weight 3226 is fully disposed within and fixed in the body portion 3206 of the club head 3200 in the locked configuration. The fastener 3230 indirectly holds the weight 3226 within the recessed channel 3220 via the cover 3228 such that the weight 3226 can be used to adjust the CG and MOI of the club head 3200.

[0169] Figure 90 is a perspective view of the weight assembly 3204 in the 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. Since the fastener tab 3232 is connected to the fastener 3230, the fastener tab 3232 is also at least partially raised out of the first channel 3222. In the example, the fastener 3230 is positioned towards the front section of the first channel 3222. However, this movement of the fastener 3230 and the fastener tab 3232 does not correspond to the movement of the weight tray 3234 within the second channel 3224. Rather, when the weight assembly 3204 is in the unlocked configuration, the user can utilize the fastener tab 3232 to at least partially pull the weight tray 3234 out of the second channel 3224 and access the weight 3226 as illustrated in Figure 91. In the unlocked configuration, the weight 3226 can still be fully disposed within the body portion 3206 of the club head.

[0170] FIG. 91 is a perspective view of a weight assembly 3204 in a weight adjustment configuration. FIG. 92 is a cross-sectional view of the weight assembly 3204 taken along line 92-92 in FIG. 91. Referring simultaneously to FIGS. 91 and 92, a weight tray 3234 has a first end 3236 with a pool 3238 sized and shaped to receive a weight 3226 and allowing the weight to be selectively positioned therein (e.g., via sliding). A second end 3240 of the weight tray 3234 is threadedly engaged with a fastener 3230 such that the fastener 3230 can rotate relative thereto. A slot 3242 is defined between a first channel 3222 and a second channel 3224, and the fastener 3230 extends therebetween and can be connected to both a fastener tab 3232 and the weight tray 3234. The slot 3242 extends in the longitudinal direction similar to the first channel 3222 and allows the weight assembly 3204 to linearly move in a rearward direction towards the weight adjustment configuration when the weight assembly 3204 is unlocked (e.g., disengaging the fastener tab 3232 from the first channel 3222).

[0171] In operation, when the weight assembly 3204 is unlocked and then moved towards the weight adjustment configuration, the first end 3236 of the weight tray 3234 protrudes from the body portion 3206 and the weight 3226 is accessible within the pool 3238 and its position can be adjusted. In some examples, the weight 3226 can be completely removable from the weight assembly 3204 in the weight adjustment configuration, as needed or desired.

[0172] FIG. 93 is a perspective view of the sole 3302 of another golf club head 3300 having another weight assembly 3304. FIG. 94 is a perspective view of the weight assembly 3304. Referring simultaneously to FIGS. 93 and 94, the golf club head 3300 includes a body portion 3306, a striking face 3308, a lower edge portion 3310, an upper edge portion (not shown), a toe (not shown), a heel 3312, a crown 3314, an outer surface 3316, an internal cavity (not shown), and a hosel 3318, and their functions are similar to the functions of the components described above. The body portion 3306 may form any type of club head as described herein, such as a metalwood type club head, a fairway metal type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 3304 described below can be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0173] In this example, the recessed channel 3320 is defined in the sole 3302 and / or in a transition area (e.g., a skirt) where the sole 3302 and the crown 3314 are joined together. The channel 3320 extends in the toe - heel direction such that the CG and MOI of the club head 3300 can be adjusted for fade - draw bias. In one aspect, the recessed channel 3320 and the weight assembly 3304 are disposed substantially in the rear peripheral portion of the club head 3300 on the opposite side of the striking face 3308.

[0174] The weight assembly 3304 includes an insert 3322 which is configured to be inserted into the recessed channel 3320 and is connected to the body portion 3306 of the club head 3300. The insert 3322 has one or more weights connected thereto. In this example, a first weight 3324 and a second weight 3326 are connected to the insert 3322. The first weight 3324 may have a different mass than the second weight 3326. Also, an actuator 3328 is connected to the insert 3322 and is disposed between the weight 3324 and the weight 3326. In the example, the actuator 3328 includes an enlarged head 3330 and a lead screw 3332 and is rotatable relative to the insert 3322. The enlarged head 3330 is captured within the insert 3322 and the lead screw 3332 extends away from the insert 3322. However, the actuator 3328 is not used to connect the weight assembly 3304 to the body portion 3306 of the club head 3300. Rather, the insert 3322 includes a locking member 3334 which is configured to selectively engage the body portion 3306 of the club head 3300 and secures the weight assembly 3304 within the recessed channel 3320. The locking member 3334 is engaged with the lead screw 3332 and has a pair of opposing ends 3336 that protrude from the insert 3322.

[0175] During operation, the weight assembly 3304 is configured to move between a locked configuration (shown in FIG. 95 and further described below) and an unlocked configuration (shown in FIG. 96 and further described below). In the locked configuration, the insert 3322 is fixed into the recessed channel 3320 via the end 3336 of the locking member 3334, and the weights 3324, 3326 are adapted to be coupled to the golf club head 3300. In the unlocked configuration, the end 3336 of the locking member 3334 is disengaged from the body portion 3306 of the club head 3300, and the insert 3322 can be removed from the recessed channel 3320. When the insert 3322 is removed, one or more of the weights 3324, 3326 can be replaced and exchanged to adjust the weights in the weight assembly 3304. In other examples, the insert 3322 can be inserted and returned upside down into the recessed channel 3320 to adjust the positions of the weights 3324, 3326 in the golf club head 3300.

[0176] FIG. 95 is a cross-sectional view of the weight assembly 3304 along line 93-93 in FIG. 93 in the locked configuration. In the locked configuration, the actuator 3328 is rotated such that the locking member 3334 is positioned in a linear orientation substantially orthogonal to the axis of rotation. This position of the locking member 3334 as shown in FIG. 95 results in the end 3336 protruding from the insert 3322 and engaging a corresponding chamber 3338 defined in the body portion 3306 of the club head and in the recessed channel 3320. The locking member 3334 engaged with the body portion 3306 connects the weight assembly 3304 to the club head and fixes the position and orientation of the weights 3324, 3326. The actuator 3328 is rotatable and is adapted to move the locking member 3334 towards the unlock configuration as described below, enabling the insert 3322 to be removed and separated from the body portion 3306 of the club head.

[0177] FIG. 96 is a cross-sectional view of the weight assembly 3304 along line 93-93 in FIG. 93 in the unlocked configuration. The locking member 3334 is a flexible member such that when the actuator 3328 is rotated, the rotational movement of the lead screw 3332 induces a corresponding linear movement at the center of the locking member 3334. As such, the locking member 3334 is capable of curving and retracting the end 3336 into the insert 3322. This retraction of the end 3336 of the locking member 3334 disengages the end 3336 from the chamber 3338 and enables the weight assembly 3304 to be removed from the recessed channel 3320 and the body portion 3306 of the club head. In an example, the end 3336 of the locking member 3334 is stiffer relative to the intermediate section such that the end 3336 is capable of engaging and securing in the recessed channel 3320.

[0178] The unlocking configuration allows the weights 3324, 3326 to be exchanged or allows the insert 3322 to be reinserted into the recessed channel 3320 at the position where it is turned over, enabling adjustment of the GC and MOI of the club head. The insert 3322 can include a pair of stops 3340, and the pair of stops 3340 engage with the ends 3336 of the locking member 3334 and are adapted to assist in imparting a curve into the locking member 3334 in the unlocking configuration. In this example, the weight assembly 3304 can be substantially symmetric in both the toe-heel direction and the sole-crown direction, and the insert 3322 can be used to reposition the weights 3324, 3326 within the body portion 3306. Additionally, the shape and size of the recessed channel 3320 allow the locking member 3334 to move as described herein.

[0179] FIG. 97 is a bottom view of the sole 3402 of a golf club head 3400 having another weight assembly 3404. FIG. 98 is a perspective sectional view of the golf club head 3400 along line 97-97 in FIG. 97 and is in a locked configuration. FIG. 99 is another perspective sectional view of the golf club head 3400 along line 97-97 in FIG. 97 and is in an unlocked configuration. Referring simultaneously to FIGS. 97-99, the golf club head 3400 is a fairway metal type golf club head having a body portion 3406, and the body portion 3406 includes a striking face 3408 having a lower edge portion 3410 and an upper edge portion 3412 that extend between the toe 3414 and the heel 3416. The sole 3402 extends from the lower edge portion 3410 on the bottom side of the club head 3400, and the crown 3418 extends from the upper edge portion 3412 at the top of the club head 3400. The sole 3402, the striking face 3408, and the crown 3418 are connected together and are configured to define an outer surface 3420 of the body portion 3406 and include an internal cavity 3422 formed therein. The hosel 3424 is disposed on the heel 3416 and is configured to connect to a shaft (not shown). The functions of the components (e.g., sole, striking face, crown, hosel, etc.) of the fairway metal type golf club head 3400 are similar to the functions of the components described above. The body portion 3406 may form any type of club head, such as a metal wood type club head, an iron type club head, or a hybrid type club head, as needed or desired. Moreover, the mechanism of the weight assembly 3404 described below can be utilized in any type of club head described herein, additionally or alternatively, as needed or desired.

[0180] In this example, the recessed channel 3426 is defined within the sole 3402 of the body portion 3406 of the club head 3400. The channel 3426 extends in the toe 3414 - heel 3416 direction such that the CG and MOI of the club head 3400 can be adjusted for fade - draw bias. The weight assembly 3404 includes a slidable weight 3428, a cover 3430, and a fastener 3432. The slidable weight 3428 is at least partially disposed within the channel 3426 and is configured to slide therein. The cover 3430 at least partially extends over the channel 3426 and is adapted to releasably secure the weight 3428 within the channel 3426. The fastener 3432 is configured to couple the cover 3430 to the body portion 3406. The fastener 3432 indirectly holds the weight 3428 within the recessed channel 3426 via the cover 3430 such 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 in the front section of the golf club head 3400.

[0181] Similar to the example described above, the weight assembly 3404 is configured to move between at least two positions via a fastener 3432 (e.g., a locked configuration (shown in FIG. 98) and an unlocked configuration (shown in FIG. 99)). In the locked configuration, the cover 3430 is at least partially disposed within the recessed channel 3426 in a fixed position, and the weight 3428 is fixed within the channel 3426 with its movement restricted. When the weight assembly 3404 is in the locked configuration, the weight 3428 is fully disposed within the channel 3426, and no portion of the weight 3428 extends above the outer surface 3420 of the body portion 3406. Since the weight 3428 is fully disposed within the recessed channel 3426 and at least aligned with (or below) the outer surface 3420 of the body portion 3406, the smoothness of the outer surface 3420 of the club head 3400 is maintained, promoting good ground interaction. In the unlocked configuration, the fastener 3432 allows the cover 3430 to move along the fastener axis toward an elevated position, freeing the weight 3428 to slide relative to the cover 3430 and the body portion 3406. The fastener 3432 is connected to the cover 3430 by a retaining clip 3433. The retaining clip 3433 is configured to connect the fastener 3432 to the cover 3430 such that the fastener 3432 can rotate relative to the cover 3430 about the fastener axis, however, the fastener 3432 and the cover 3430 are connected together for corresponding linear movement along the fastener axis. In one aspect, the retaining clip 3433 includes a lock washer. In this example, the cover 3430 includes a retaining rib 3434 that is configured to slidably engage a slit 3435 defined within the weight 3428. The retaining rib 3434 improves the retention of the weight 3428 by the cover 3430 when the weight assembly 3404 moves between configurations. The retaining rib 3434 is described in further detail below.

[0182] Figure 100 is another bottom view of the sole 3402 of the golf club head 3400. The weight assembly 3404 (shown in FIGS. 97-99) is not shown for clarity. The recessed channel 3426 is defined by a bottom track 3436 and two opposing side wall portions 3438, 3440. The first side wall portion 3438 is adjacent to the striking face 3408, and the second side wall portion 3440 is adjacent to the rear of the sole 3402. A nut 3442 is formed in the sole 3402 of the body portion 3406 proximate the second side wall portion 3440. The nut 3442 is configured to engage a fastener 3432, and a cover 3430 (both shown in FIGS. 97-99) is adapted to be directly connected to the body portion 3406. Additionally, the recessed channel 3426 is defined by two opposing end wall portions 3444, 3446. The toe end wall portion 3444 is located on the toe side of the club head 3400, and the heel end wall portion 3446 is located on the heel side of the club head 3400. In this example, no chamber or opening is defined at the ends of the recessed channel 3426, and the cover 3430 does not have corresponding protrusions. In one aspect, the fastener 3432 is the only component of the weight assembly 3404 that extends into the internal cavity of the body portion 3406, for example, via the nut 3442. This configuration of the club head 3400 reduces the accumulation of dirt and debris in the channel 3426 and in the body portion 3406.

[0183] The bottom track 3436 includes a plurality of bosses 3448 that project into the channel 3426. In this example, there are five bosses 3448 equally spaced in the toe-heel direction. The bosses 3448 are configured to selectively engage with the weight 3428 when in the locked configuration (shown in FIG. 98) and serve to assist in positioning and retaining the weight 3428 within the recessed channel 3426 as described herein. In an example, the bosses 3448 can have a substantially frustoconical shape. Additionally, the first sidewall portion 3438 includes a plurality of dimples 3450 corresponding to the plurality of bosses 3448. The dimples 3450 are configured to selectively engage with the weight 3428 when in the locked configuration and serve to assist in positioning and retaining the weight 3428 within the recessed channel 3426 as described herein. In an example, there are five bosses 3448 and five dimples 3450 such that the weight 3428 can be selectively positioned at five predefined positions. It will be understood that any other number of predefined positions (e.g., three) can be utilized as needed or desired.

[0184] Between the first sidewall portion 3438 and the end walls 3444, 3446, the recessed channel 3426 is defined by an inclined wall portion 3452. The inclined wall portion 3452 is formed at the terminal end of the channel 3426 in the toe-heel direction. Since the protrusions and chambers have been eliminated from the weight assembly 3404 as compared to the previous example, the inclined wall portion 3452 is configured to engage with the cover 3430 and secure the end of the cover 3430 when in the locked configuration.

[0185] FIG. 101 is an inner surface view of a cover 3430 and a weight 3428 of a weight assembly 3404 (shown in FIGS. 97-99). FIG. 102 is a side view of the cover 3430 and the weight 3428. Referring simultaneously to FIGS. 101 and 102, the cover 3430 has a first end 3454 and an opposite second end 3456. A tab 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 tab 3458 is defined at least by an outer wall portion 3460 that forms the outer surface of the cover 3430 and a side wall portion 3462 of the cover 3430. The tab 3458 is sized and shaped to at least receive the weight 3428 and to allow the weight 3428 to slide therein. End wall portions 3464 are defined at both the first end 3454 and the second end 3456 and define the terminal ends of the tab 3458. A fastener receiver 3466 is disposed on the opposite side of the tab 3458 on the cover 3430 and is configured to support a fastener 3432 (shown in FIGS. 97-99) at an aperture 3468. The fastener 3432 connects the cover 3430 to the body portion of the club head at the fastener receiver 3466.

[0186] The retaining rib 3434 protrudes from the outer wall portion 3460 into the rabbet 3458 and extends elongately 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 with the weight 3428 and is adapted to improve the retention of the weight 3428 to the cover 3430. The retaining rib 3434 is shaped and sized to be at least partially received within the slit 3435 (shown in FIGS. 98-99) of the weight 3428. This engagement between the weight 3428 and the cover 3430 via the retaining rib 3434 enables the weight 3428 to move with the cover 3430 between a locked configuration and an unlocked configuration and allows the weight 3428 to be slidably repositioned when in the unlocked configuration. In this example, the retaining rib 3434 is discontinuous in the elongate direction such that the weight 3428 can be completely removed from the weight assembly as needed or desired.

[0187] In an example, the retaining rib 3434 can include two separate sections (a first rib 3470 and a second rib 3472), the first rib 3470 and the second rib 3472 being separated by a gap 3474 that is configured to allow the weight 3428 to be at least partially removably received within the tab 3458. As shown in FIG. 101, the retaining rib 3434 is disposed on the opposite side of the cover 3430 from the fastener receiver 3466, proximate to the distal end of the outer wall portion 3460. As such, the retaining rib 3434 is spaced apart from the side wall portion 3462 of the cover 3430 by an interval 3476. The retaining rib 3434 extends from each of the end wall portions 3464, and the gap 3474 is disposed proximate to the second end 3456 of the cover 3430. In another aspect, the gap 3474 can be disposed proximate to the first end 3454 of the cover 3430 or proximate to an intermediate point of the cover 3430. In other aspects, the gap 3474 can be disposed on one of the end wall portions 3464 such that the retaining rib 3434 extends from only one of the end wall portions 3464, or two or more gaps 3474 can be present within the retaining rib 3434. In yet another example, two or more parallel retaining ribs 3434 can be used as needed or desired.

[0188] Cover 3430 has an outer surface 3478 and an opposite inner surface 3480. The outer surface 3478 is configured to align with the outer surface of the club head when in the locked configuration. The inner surface 3480 faces the recessed channel 3426 (shown in FIG. 100) of the club head. The thickness 3482 of the cover 3430 is defined between the outer surface 3478 and the inner surface 3480 in a direction substantially parallel to the fastener axis of the fastener 3432 (shown in FIGS. 97 - 99). The thickness 3482 of the cover 3430 at the end wall portion 3464 is substantially equal to the thickness 3482 of the cover 3430 at the midpoint of the tab 3458 between the first end 3454 and the second end 3456. Thus, the end wall portion 3464 of the cover 3430 lacks a protrusion and engages directly with the recessed channel 3426 of the club head.

[0189] At least one hollow portion 3484 is defined within the weight 3428 and within the surface opposite the slit 3435 (shown in FIGS. 98 - 99). The hollow portion 3484 is sized and shaped to engage a boss 3448 disposed within the channel 3426 (both shown in FIG. 100). In the example, the hollow portion 3484 includes a fully defined hollow portion 3484 and two partially defined hollow portions 3484 located laterally of the fully defined hollow portion 3484. This configuration allows for the use of a more elongated weight 3428 while accommodating an increased amount (e.g., five) of weight positioning locations as illustrated in the example shown.

[0190] Figure 103 is another inner surface view of the cover 3430. Figure 104 is a cross-sectional view of the cover 3430 along line 104-104 in Figure 103. Referring to Figures 103 and 104 simultaneously, certain components have been described above and thus will not necessarily be further described. The tab 3458 is formed by the outer wall portion 3460 and the side wall portion 3462. The retaining rib 3434 is disposed adjacent to the distal end of the outer wall portion 3460. The shelf portion 3486 extends from the distal end of the side wall portion 3462 and is configured to at least partially support the weight 3428 (shown in Figures 101-102). The retaining rib 3434 and the shelf portion 3486 extend in substantially orthogonal directions. In the example, the retaining rib 3434 has a substantially square cross-section. It will be understood that the retaining rib 3434 can have any other cross-sectional shape, if necessary or desired.

[0191] In this example, the tab 3458 has a length 3488, which is defined between the end wall portions 3464 at the first and second ends of the cover 3430. Also, the gap 3474 of the retaining rib 3434 has a length 3490, which is defined between two sections of the rib. In the example, the length 3488 of the tab 3458 is about two to four times the length 3490 of the gap 3474. In one aspect, the length 3488 of the tab 3458 is about three times the length 3490 of the gap 3474. As shown in Figure 103, the retaining rib 3434 has an arcuate shape in plan view, which corresponds to the elongated shape of the tab 3458 defined within the cover 3430.

[0192] The end walls 3464 at each end of the cover 3430 have their inner surfaces aligned with the inner surfaces of the side walls 3462, and the end walls 3464 are adapted to engage directly with the recessed channel 3426 (shown in FIG. 100) without the use of projections. Also, each end of the cover 3430 includes a chamfered portion 3492 that corresponds to the inclined wall 3452 of the channel 3426 (shown in FIG. 100), which in a locked configuration enables the end of the cover to engage securely with the club head and reduces rattling of the weight therein.

[0193] FIG. 105 is a partially exploded perspective view of an iron type golf club head 3500 with another weight assembly 3504. In particular, the golf club head 3500 is a wedge type golf club head. FIG. 106 is another partially exploded perspective view of the golf club head 3500 of FIG. 105. FIG. 107 is a rear view of the golf club head 3500 of FIG. 105 with the weight assembly 3504 in a locked configuration. FIG. 108 is another rear view of the golf club head 3500 of FIG. 105 with the weight assembly 3504 in an unlocked configuration. FIG. 109 is another partially exploded perspective view of the golf club head 3500 of FIG. 105. FIG. 110 is a top view of the golf club head 3500 of FIG. 105 without the weight assembly 3504. FIG. 111 is a toe - heel direction cross - sectional view of the golf club head 3500 of FIG. 105 along line 110a - 110a in FIG. 110, showing the weight assembly 3504 in a locked configuration. FIG. 112 is a toe - heel direction cross - sectional view of the golf club head 3500 of FIG. 105 along line 110a - 110a in FIG. 110, showing the weight assembly 3504 in an unlocked configuration. In FIGS. 111 and 112, the golf club head is shown with the loft perpendicular to the ground plane, which is different from the setup at the address position having a shaft that is normally perpendicular to the ground plane. The address position as defined by the present application sets up the golf club head in an orientation having a lie angle of 60 degrees similar to the USGA requirements. When the lie angle is set to 60 degrees, the face angle of the golf club head is set to be square, which is defined as having a face angle of 0 degrees.

[0194] Referring to FIGS. 105-112 simultaneously, the golf club head 3500 is an iron type golf club head. The iron type golf club head may be, for example, a wedge type golf club head. The golf club head 3500 includes a body portion 3506 having a striking face 3508 with a lower leading edge 3510 extending between the toe 3514 and the heel 3516 and an opposite upper topline edge 3512. The striking face 3508 may have a plurality of grooves 3519 formed therein to assist in imparting spin to a golf ball when struck by the striking face. The body portion 3506 has a sole 3502 that extends from the lower leading edge 3510 on the bottom side of the golf club head 3500 to a rear portion 3522 of the sole 3502. The rear portion 3522 may be defined as an edge or corner on the body portion 3506. A back portion 3550 is between the rear portion 3522 of the sole 3502 and the upper portion 3503. The back portion 3550 includes all surfaces of the outer surface 3520 of the body portion 3506 of the golf club head 3500 that are between the rear portion 3522 of the sole 3502 and the upper portion 3503 and also between the toe 3514 and the heel 3516. Specific examples of the back portion 3550 will be described in more detail below. The upper portion 3503 of the body portion 3506 is connected between the upper topline edge 3512 and the back portion 3550. In some embodiments, the upper portion 3503 is a thin surface. In some other embodiments, the upper portion 3503 does not exist and the upper topline edge 3512 may be directly connected to the back portion 3550. The striking face 3508, the sole 3502, the back portion 3550, and the upper portion 3503 are connected together to define at least a portion of the outer surface 3520 of the body portion 3506. A hosel 3501 is disposed on the heel 3516 and configured to connect to a shaft (not shown).

[0195] A recessed channel 3526 is defined in the outer surface 3520 of the body portion 3506, and in particular, is defined in the back portion 3550. The channel 3526 extends along the toe 3514 - heel 3516 direction, such that the CG and MOI of the golf club head 3500 can be adjusted for fade - draw bias. The weight assembly 3504 is adapted to be coupled to the body portion 3506 in the channel 3526. The weight assembly 3504 includes a weight 3528, a cover 3530, and a fastener 3532. The weight 3528 is at least partially disposed in the channel 3526 and is configured to be movable along the toe 3514 - heel 3516 direction in the channel 3526. The cover 3530 at least partially extends above the channel 3526 and is adapted to releasably secure the weight 3528 in the channel 3526. The fastener 3532 is configured to couple the cover 3530 to the body portion 3506. The fastener 3532 holds the weight 3528 in the recessed channel 3526 only indirectly through 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, such that the weight 3528 can be moved at least along the toe 3514 - heel 3516 direction in the channel 3526. As used herein, references to movement along the toe - heel direction include those along the heel - toe direction as well.

[0196] The weight assembly 3504 is configured to move between at least two positions via a fastener 3532 (e.g., a locked configuration as shown in FIGS. 107 and 111, and an unlocked configuration as shown in FIGS. 108 and 112). In some embodiments, the weight assembly 3504 may 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 may be configured not to allow the weight assembly 3504 to be completely removed from the channel 3526, among other reasons, to prevent the weight 3528 from being accidentally lost. In the locked configuration, the cover 3530 is at least partially disposed within the recessed channel 3526 and its movement is restricted. When the weight assembly 3504 is in the locked configuration, the weight 3528 is disposed within the channel 3526 and the position of the weight 3528 is fixed by the cover 3530 such that the weight 3528 cannot move. The locked configuration may be used when the golf club including the golf club head 3500 is swung so that the CG and MOI of the golf club head 3500 are set during the swing. The fastener 3532 is selectively movable along a fastener axis 3570 (see FIGS. 111 and 112). The fastener 3532 may be connected to the cover 3530 by a retaining clip 3533 such that the fastener 3532 can rotate relative to the cover 3530 about the fastener axis 3570. Thus, the fastener 3532 and the cover 3530 are connected together such that the cover 3530 moves with the fastener 3532 along the fastener axis 3570.

[0197] In other embodiments, the retaining clip 3533 may not be present, and when the fastener 3532 moves, the cover 3530 is not necessarily moved with the fastener 3532. However, in such embodiments, when the fastener 3532 is partially moved to the raised position and at least partially releases the cover 3530, the cover 3530 can be movable along the fastener axis 3570 within the range in which the fastener 3532 is moved.

[0198] The weight assembly 3504 is configured to be moved from the locked configuration to the unlocked configuration by adjusting the position of the fastener 3532 to the raised position, thereby releasing the weight 3528, and the weight 3528 can move inside the channel 3526 relative to the body portion 3506 and the cover 3530, at least along the toe 3514 - heel 3516 direction. 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.

[0199] 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 detached from the cover 3530, the weight assembly 3504 can be moved from the unlocked configuration to the weight - removable configuration. In some embodiments, the weight assembly 3504 can be completely detached from the body portion 3506 in the weight - removable configuration. The weight - removable configuration can be used to allow the weight 3528 to be replaced. For example, a plurality of weights having different masses can be used with the weight assembly 3504, and the weights having different masses can be interchanged for greater control of the CG and MOI of the golf club head 3500.

[0200] In this non-exclusive example, and as shown for example in FIG. 107, the back portion 3550 includes a lower back surface 3552 connected between the rear portion 3522 of the sole 3502 and the upper portion 3503, a first back surface 3554 connected between the lower back surface 3552 and the upper portion 3503, an intermediate surface 3555 connected between the first back surface 3554 and the upper portion 3503, and a second back surface 3556 connected between the intermediate surface 3555 and the upper portion 3503.

[0201] The lower back surface 3552 may be substantially flat in some embodiments. In some other embodiments, the lower back surface 3552 may be substantially flat except for a curve along the toe 3514 - heel 3516 direction. The height of the lower back surface 3552 (when viewed in the orientation of FIG. 105) may be the lowest among the heights of the lower back surface 3552, the first back surface 3554, the intermediate back surface 3555, and the second back surface 3556. In some embodiments, the lower back surface 3552 may not be present, and the first back surface 3554 may extend from the rear portion 3522 of the sole 3502.

[0202] The first back surface 3554 may be substantially flat, and may extend from the edge of the lower back surface 3552 distal to the rear portion 3522 towards the intermediate surface 3555 along a direction such that at least a part of the virtual extension of the first back surface 3554 intersects the striking face 3508. Also, the first back surface 3554 may extend towards the upper topline edge 3512 of the golf club head 3500 (for example, may extend along a direction closer to the upper topline edge 3512).

[0203] The intermediate rear surface 3555 may be a curved or substantially flat surface extending from the edge of the first rear surface 3554 distal to the lower rear surface 3552 to the second rear surface 3556. In some embodiments, the intermediate rear surface 3555 does not exist and the second rear surface 3556 extends from the first rear surface 3554.

[0204] The second rear surface 3556 may be substantially flat and parallel to the striking face 3508. The second rear surface 3556 extends from the edge of the intermediate rear surface 3555 distal to the first rear surface 3554 to the upper portion 3503. The first surface 3554 and the second surface 3556 generally form an obtuse angle. For example, an obtuse angle may be formed at the location where the virtual extensions of the first surface 3554 and the second surface 3556 meet.

[0205] The rear portion 3550 has been described as including the lower rear surface 3552, the first rear surface 3554, the intermediate rear surface 3555, and the second rear surface 3556, and the recessed channel 3526 has been described as being formed in the first rear surface 3554, but the embodiments of the present disclosure are not limited thereto. The rear portion 3550 may include any one or more of the lower rear surface 3552, the first rear surface 3554, the intermediate rear surface 3555, and the second rear surface 3556. The lower rear surface 3552, the first rear surface 3554, the intermediate rear surface 3555, and the second rear surface 3556 have been illustrated and described as having particular configurations, but the lower rear surface 3552, the first rear surface 3554, the intermediate rear surface 3555, and the second rear surface 3556 are not limited thereto. These configurations are provided for the purpose of illustrating exemplary embodiments and not for the purpose of limitation. Moreover, the recessed channel 3526 may be formed in any one or more of the surfaces included in the rear portion 3550.

[0206] In this example, and as shown for example in FIG. 110, the recessed channel 3526 is formed in the back portion 3550, for example, in the first back surface 3554. Also, a fastener receiver 3572 adapted to receive and engage a fastener 3532 is defined in the back portion 3550, for example, at the junction between the first surface 3554 and the second surface 3556, or in 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 positioner protrusion 3557 having a shape and size corresponding to the fastener cutout 3571, and the positioner protrusion 3557 is engageable with the fastener cutout 3571 and can at least partially define the position of the cover 3530 in a locked configuration (and, in some embodiments, in an unlocked configuration).

[0207] The channel 3526 has opposing first and second side wall portions 3538 and 3540 that extend along the toe 3514 - heel 3516 direction. The second side wall portion 3540 is adjacent to the fastener receiver 3572, and the first side wall portion 3538 is adjacent to the rear portion 3522 of the sole 3502. Also, the channel 3526 has opposing toe end wall portion 3544 and heel end wall portion 3546, the toe end wall portion 3544 being adjacent to the toe 3514 and the heel end wall portion 3536 being adjacent to the heel 3516. The channel 3526 has a bottom track 3536 that is offset from the outer surface 3520 of the body portion 3506 and is disposed between the first side wall portion 3538 and the second side wall portion 3540, and is also disposed between the toe end wall portion 3544 and the heel end wall portion 3546.

[0208] The body portion 3506 includes a plurality of positioning lugs 3534 on the bottom track 3536. The positioning lugs 3534 project toward the opening of the recessed channel 3526 that is recessed from the bottom track 3536. As shown in FIG. 109, the weight 3528 has a bottom recess 3562 that is shaped and sized so that the weight 3528 selectively engages with the positioning lugs 3534, thereby at least partially defining the position of the weight 3528 within the recessed channel 3526. The first side wall portion 3538 has a plurality of dimples 3524 at the opening of the recessed channel 3526, on top of the first side wall portion 3524. The dimples 3524 are cutouts or voids in the first side wall portion 3538 and have positions arranged along the toe 3514 - heel 3516 direction corresponding respectively to the positioning lugs 3534. The weight 3528 includes a main body portion 3560 and a position indicator 3568 that projects from the main body portion 3560. The position indicator 3568 is shaped and sized to selectively engage with the dimples 3524 and visually indicate the position of the weight 3528 inside the channel 3526. In the locked configuration, the cover 3530 may cover and hide the main body portion 3560 of the weight 3528, however, the position indicator 3568 extends from under the cover 3568 and can be at least partially positioned within one of the dimples 3524. In the locked configuration, 0% to 30% of the outer surface of the weight 3528 is visible.

[0209] As shown in FIGS. 111 and 112, the cover 3530 includes a flange 3558, and the weight 3528 has a groove portion 3566 that is shaped and sized to receive at least a portion of the flange 3558 and slidably engage the weight 3528 with the cover 3530. Thus, when the weight assembly 3504 is in the unlocked configuration, the weight 3528 can slide back and forth inside the recessed channel 3526.

[0210] As shown in FIGS. 111 and 112, the striking face 3508 has an outermost surface 3518 and a plurality of grooves 3519, and the plurality of grooves 3519 each have a longitudinal axis extending along the toe 3514 - heel 3516 direction. The outermost surface 3518 may be substantially flat except for the grooves 3519. The striking face plane 3580 is tangential to the outermost surface 3518 and extends beyond the boundary of the striking face 3508 itself. In the exemplary toe - heel cross - sectional views of FIGS. 111 and 112, the Y - coordinate is defined as extending vertically (generally, from top to bottom), the Z - coordinate is defined as extending horizontally (generally, from front to back), and the X - coordinate is defined as extending into and out of the page (generally, in the toe - heel direction). In the examples of FIGS. 111 and 112, with the club head 3500 oriented as shown, the striking face plane 3580 is in the X - Y plane and the Z - axis is orthogonal to the striking face plane (the X - Y plane as shown). In the example, the fastener axis 3570 includes the virtual extension of the axis along which the fastener 3532 moves between the locked and unlocked positions, and the fastener axis 3570 intersects the striking face plane 3580. In some examples, the intersection of the fastener axis 3570 and the striking face plane 3580 occurs at a point closer to the lower leading edge 3510 of the striking face 3508 than the upper topline edge 3512 of the striking face 3508. In some embodiments, the fastener axis 3570 intersects the striking face 3508 itself. In some other embodiments, the fastener axis 3570 does not intersect the striking face 3508 but still intersects the striking face plane 3580 near the lower leading edge 3510 (e.g., at a point below the lower leading edge 3510) rather than the upper topline edge 3512.

[0211] 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 perpendicular to the longitudinal axis of at least one groove 3519 (such as 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 may be perpendicular to the cross-sectional plane. In the examples of FIGS. 111 and 112, the cross-sectional plane is shown as the Y-Z plane. The fastener axis 3570 forms the impact face plane 3580 and the fastener angle 3584 in the cross-sectional plane. The fastener axis 3570 may not be entirely within the cross-sectional plane (here, the Y-Z plane), and it is understood that the vector of the fastener axis 3570 may include some component in the X direction (for example, the fastener axis 3570 may be inclined in the toe 3514 - heel 3516 direction). However, as used herein, the fastener angle 3584 is measured only within the cross-sectional plane, ignoring any toe - heel (or "X") component of the vector defining the fastener axis 3570. The fastener angle 3584 is defined in the cross-sectional plane and is measured counterclockwise from the impact face plane 3580 to the fastener axis 3570 when the cross-sectional plane is viewed in the toe - heel direction, as shown in FIGS. 111 and 112. The fastener angle 3584 may be in the range of about 0 degrees to about 90 degrees. For example, the fastener angle 3584 of the fastener axis 3570 with respect to the impact face plane 3580 may be from about 5 degrees to about 85 degrees, from about 10 degrees to about 80 degrees, from about 15 degrees to about 75 degrees, from about 20 degrees to about 70 degrees, from about 25 degrees to about 65 degrees, from about 30 degrees to about 60 degrees, from about 35 degrees to about 55 degrees, from about 40 degrees to about 50 degrees, or about 45 degrees. In a further example, the fastener angle of the fastener axis 3570 with respect to the impact face plane 3580 may be non - negative and 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 zero degrees.In other examples, the fastener angle 3584 of the fastener axis 3570 relative to the striking face plane 3580 can even be negative, depending on the configuration of the back portion 3550 of the club head 3500. For example, it can be 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 even from about 0 degrees to about -45 degrees. The aforementioned ranges of the fastener angle 3584 are non-limiting exemplary ranges, and the fastener angle 3584 can be within any range encompassed within a range from -45 degrees to about 135 degrees, such as from about 28 degrees to about 63 degrees or from about 85 degrees to about 115 degrees. By forming the recessed channel 3526 and disposing the weight assembly 3504 within the back portion 3550 of the iron-type golf club head 3500 instead of within the sole 3502, the interaction between the weight assembly 3504 and the ground can be reduced when the golf club including the golf club head 3500 is swung. Thus, dirt and other materials can be substantially prevented from entering into the recessed channel 3526 and interfering with the weight assembly 3504.

[0212] In an example, the fastener 3532 can have a height that can be measured in a 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 a locked configuration to an unlocked configuration.

[0213] FIG. 113 is a rear view of a golf club head 3500 with another weight assembly 3604 in a locked configuration. The golf club head 3500 of the embodiment illustrated in FIG. 113 may include some of the same (or similar) mechanisms as those illustrated and described above with respect to the golf club head 3500 of FIGS. 105-112. Certain components have been described above and, thus, are not necessarily described further. Referring to the example of FIG. 113, the golf club head 3500 has a body portion including a toe 3514, a heel 3516, an upper portion 3503, a 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 the weight assembly 3604 is connectable to the body portion of the golf club head 3500 in the recessed channel. The weight assembly 3604 includes a weight (not shown), a cover 3630, and a fastener 3632.

[0214] In this example, the weight assembly 3604 is similar to the weight assembly 3504, except that when the weight assembly 3604 is in the locked configuration, the cover 3630 completely covers the weight and the recessed channel (including the bottom track of the recessed channel (not shown)). In the example, the 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 portion of the golf club head 3500 may have a plurality of positioning lugs (similar to the positioning lugs 3534 shown in FIG. 110) in the bottom track of the recessed channel to engage the weight and at least partially define the position of the weight when the weight assembly 3604 is in the locked configuration, and the cover 3630 may include a plurality of see-through openings 3690 at positions corresponding to the plurality of positioning lugs, respectively. In the example, the weight may be adapted to slidably engage a flange on the cover 3630 (e.g., in a manner similar to how the weight 3528 in the embodiment shown in FIG. 106 is adapted to slidably engage the flange 3558 of the cover 3530), may be adapted to slidably engage a rail on the body portion (e.g., a rail protruding from the bottom track or the side wall of the recessed channel), or may not be adapted to slidably engage either the cover or the body portion. The weight assembly 3604 may include one or more of the weight assembly mechanisms described herein to allow the CG and MOI of the golf club head 3500 to be adjustable for fade-draw bias while indirectly fixing the weight in the locked configuration by the cover 3630. In the example, the fastener 3632 forms a fastener angle measured in a cross-sectional plane with respect to the striking face and / or the striking face plane of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0215] FIG. 114 is a rear view of a golf club head 3500 with another weight assembly 3704, and FIG. 115 is a top view of the golf club head 3500 of FIG. 114. The golf club head 3500 of the embodiment illustrated in FIGS. 114 and 115 may include some mechanisms similar to (or the same as) the mechanisms illustrated and described above with respect to the golf club head 3500 of FIGS. 105-112. Certain components have been described above and thus are not necessarily described further. Referring to the examples of FIGS. 114 and 115, the golf club head 3500 has a body portion including a toe 3514, a heel 3516, an upper portion 3503, a 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 the weight assembly 3604 is connectable to the body portion of the golf club head 3500 in the recessed channel 3526. The weight assembly 3704 includes a weight 3728, a cover 3730, and a fastener 3732.

[0216] In this example, when the weight assembly 3704 is in the locked configuration, the cover 3730 exposes at least a portion of the weight 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 may 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 weight 3728 within the recessed channel 3526. Thus, the position of the weight 3728 within the recessed channel 3526 when the weight assembly 3704 is in the locked configuration may be visible through the cutout portion of the cover 3730. In the example, the weight 3728 may be adapted to slidably engage a flange on the cover 3730 (e.g., in a manner similar to how the weight 3528 in the embodiment shown in FIG. 106 is adapted to slidably engage the flange 3558 of the cover 3530), may be adapted to slidably engage a rail on the body portion (e.g., a rail protruding from the bottom track or from a sidewall of the recessed channel), or may not be adapted to slidably engage either the cover 3730 or the body portion. The weight assembly 3704 may include one or more of the weight assembly mechanisms described herein to allow the CG and MOI of the golf club head 3500 to be adjustable for fade - draw bias while securing the weight 3728 in the locked configuration. In the example, the fastener 3732 forms a fastener angle measured in a cross - sectional plane relative to the striking face and / or the striking face plane of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0217] FIG. 116 is a rear view of a golf club head 3500 with another weight assembly 3804 in a locked configuration. FIG. 117 is a rear view of the golf club head 3500 of FIG. 116 when the weight assembly 3804 is in an unlocked configuration. FIG. 118 is a partially exploded rear view of the golf club head 3500 of FIG. 116. FIG. 119 is a toe-heel direction cross-sectional view of the golf club head 3500 of FIG. 116 along line 116a-116a when the weight assembly 3804 is in a locked configuration. FIG. 120 is a toe-heel direction cross-sectional view of the golf club head 3500 of FIG. 116 along line 116a-116a when the weight assembly 3804 is in an unlocked configuration. The golf club head 3500 of the embodiment illustrated in FIGS. 116-120 may include some mechanisms similar to (or the same as) the mechanisms illustrated and described above with respect to the golf club head 3500 of FIGS. 105-112. Certain components have been described above and, thus, are not necessarily described further. Referring to the examples of FIGS. 116-120, the golf club head 3500 has a body portion including a toe 3514, a heel 3516, an upper portion 3503, a striking face 3508 (see FIG. 119), 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 the weight assembly 3804 is connected to the body portion of the golf club head 3500 in the recessed channel 3526.

[0218] The weight assembly 3804 includes a weight 3828, a cover 3830, and a fastener 3832. The fastener 3832 is connected to the cover 3830 via a retaining clip 3533. In this example, the weight includes a main body portion 3860 and a protruding position indicator 3868 extending from an upper portion of the main body portion 3860. The upper portion of the main body portion 3860 refers to a portion of the main body portion 3860 that is closest to the cover 3830 and / or the opening of the recessed channel 3526 when the weight assembly 3804 is in the locked configuration. The lower portion of the main body portion 3860 refers to a portion of the main body portion 3860 that is closest to the bottom of the recessed channel 3526 when the weight assembly 3804 is in the locked configuration. The recessed channel 3526 extends along the toe 3514 - heel 3516 direction, and the cover 3830 has two opposing long sides (a first long side 3886 distal to the striking face 3508 and a second long side 3887 proximal to the striking face 3508) extending along the toe 3514 - heel 3516 direction. Also, the cover 3830 has an inner surface 3888 and an outer surface 3889. The inner surface 3888 faces the recessed channel 3526 when the weight assembly 3804 is in the locked configuration, and the outer surface 3889 faces away from the recessed 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 may be at the same height as the first back surface 3554, and at least a portion of the inner surface 3888 is offset from the first back surface 3554 and is inside the recessed channel 3526.

[0219] In the locked configuration, the cover 3830 covers and hides at least a portion of the main body portion 3860, and at least a portion of the protruding position indicator 3868 extends from under the cover 3830 and is exposed. Thus, the protruding position indicator 3868 may indicate the position of the weight 3828 in the recessed channel 3526 when the weight assembly 3804 is in the locked configuration. The protruding position indicator 3868 may be (e.g., in contact with) on a portion of the outer surface (e.g., the first back surface 3554) of the body portion of the golf club head 3500 in the locked configuration. In this example, the weight 3828 is not adapted to slidably engage with the cover 3830. When the cover 3830 is moved 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 along the toe 3514 - heel 3516 direction. In some embodiments where the body portion includes positioning lugs (similar to the positioning lugs 3534 shown in FIG. 10) in the bottom track of the recessed channel 3526, the weight 3828 can be slightly lifted by the protruding position indicator 3868 before being moved along the toe 3514 - heel 3516 direction. The cover 3830 has at least one positioning groove portion 3859 in the inner surface 3888, and the at least one positioning groove portion 3859 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 portion 3859 may include a plurality of (e.g., five) positioning groove portions, and the protruding position indicator 3868 may selectively engage with the positioning groove portions 3859. The positioning groove portion 3859 may extend from the first side portion 3886 towards the second side portion 3887 (e.g., at least part of the way).The weight assembly 3804 may include one or more of the weight assembly mechanisms described herein to allow the CG and MOI of the golf club head 3500 to be adjustable for fade - draw bias while fixing the weight in a locked configuration. In an example, the fastener 3832 forms a fastener angle 3584 measured in a cross - sectional plane with respect to the striking face 3508 and / or the striking face plane 3580 of the golf club head 3500 in the manner described above with respect to the weight assembly 3504.

[0220] Figure 121 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, but not a wedge - type golf club head. In particular, the golf club head 3900 is illustrated as a Titleist® (trademark of Acushnet) golf club head of a 3 - iron, but the embodiments are not limited thereto. Figure 122 is a rear view of the golf club head 3900 of Figure 121 when the weight assembly 3904 is in an unlocked configuration. Figure 123 is a perspective view of the golf club head 3900 of Figure 121 when the weight assembly 3904 is in an unlocked configuration. Figure 124 is a partially exploded perspective view of the golf club head 3900 of Figure 121. Figure 125 is a cross - sectional view of the golf club head 3900 of Figure 121 in the toe - heel direction along line 121a - 121a when the weight configuration 3904 is in a locked configuration. Figure 126 is a cross - sectional view of the golf club head 3900 of Figure 121 along line 121a - 121a when the weight configuration 3904 is in an unlocked configuration. The golf club head 3900 of the embodiments illustrated in Figures 121 - 126 may include some mechanisms similar to (or the same as) the mechanisms illustrated and described above with respect to the golf club head 3500 of Figures 105 - 112.

[0221] Referring to FIGS. 121-126, the golf club head 3900 has a body portion including a toe 3914, a heel 3916, an upper portion 3903, a striking face 3908, a sole 3902, and a back portion 3950. A hosel 3901 is disposed at the heel 3916 and configured to connect to a shaft (not shown). The striking face 3908 has an upper topline edge 3912 and an opposite lower leading edge 3910. As shown in FIGS. 125 and 126, the striking face 3908 also has an outermost surface 3918 and a groove portion 3919 extending along the toe 3914 - heel 3916 direction. The sole 3902 extends from the lower leading edge 3910 and has a rear portion 3922 distal to the lower leading edge 3910.

[0222] The back portion 3950 is positioned between the rear portion 3922 of the sole 3902 and the upper portion 3903 and includes all surfaces of the outer surface of the body portion of the golf club head 3900 that are both between the rear portion 3922 of the sole 3902 and the upper 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, together with the cover 3930, acts to conceal a cavity formed behind the club head 3900. However, the second back surface 3956 remains stationary, while the cover 3930 moves between a locked position and an unlocked position.

[0223] A recessed channel 3926 is formed in the first back surface 3954, and the weight assembly 3904 is connectable to the body portion of the golf club head 3900 in the recessed channel 3926. The recessed channel 3926 has a bottom track 3936, and the bottom track 3936 is offset from the outer surface of the body portion of the golf club head 3900. The recessed channel 3926 also has opposing first side wall portion 3938 and second side wall portion 3940 that extend along the toe 3914 - heel 3916 direction, the first side wall portion 3938 being proximal to or adjacent to the lower back surface 3952, and the second side wall portion 3940 being distal to the lower back surface 3952. At least one dimple 3924 may be formed in the first side wall portion 3938 at the upper end thereof (where the opening of the recessed channel 3926 is formed in the outer surface of the body portion).

[0224] The weight assembly 3904 includes a weight 3928, a cover 3930, and a fastener 3932. A fastener receiver 3972 is formed within the body portion of the golf club head 3900 and is adapted to receive at least a portion of the fastener 3932 and engage the fastener 3932. The cover 3930 includes a flange 3958, and the weight 3928 has a groove 3966 that is shaped and sized to receive at least a portion of the flange 3958 and slidably engage the weight 3928 with the cover 3930. The weight 3928 has a main body portion 3960 and a protrusion position indicator 3968 that protrudes from the main body portion 3960. At least one dimple 3924 is shaped and sized to receive at least a portion of the protrusion position indicator 3968. In the locked configuration of the weight assembly 3904, the cover 3930 may cover and conceal the main body portion 3960 of the weight 3928, and the protrusion position indicator 3968 protrudes at least partially from beneath the cover 3930 and engages with the dimple of the at least one dimple 3924 to visually indicate the position of the weight 3928 in the locked configuration. The weight assembly 3904 may include one or more of the weight assembly mechanisms described herein to allow the CG and MOI of the golf club head 3900 to be adjustable for fade - draw bias while fixing the weight in the locked configuration.

[0225] In an example, the fastener 3932 forms a fastener angle 3984 measured in a cross - sectional plane with respect to the striking face 3908 and / or the striking face plane 3980 of the golf club head 3900 in the manner described above with respect to the weight assembly 3504.

[0226] FIG. 127 is a bottom view of a golf club head 4000 with another weight assembly 4004 in a locked configuration. In particular, the golf club head 4000 is shown as being a metalwood type golf club head. However, the present disclosure is not limited thereto. For example, the golf club head 4000 may be a hybrid type golf club or an iron type golf club (e.g., a wedge, etc.). FIG. 128 is a top view of the golf club head 4000 of FIG. 127. FIG. 129 is another top view of the golf club head 4000 of FIG. 127 with the crown piece 4054 of the golf club head 4000 removed. FIG. 130 is a cross-sectional view of the golf club head 4000 of FIG. 127 taken along line 130a-130a of FIG. 128 when the weight assembly 4004 is in a locked configuration. FIG. 131 is another bottom view of the golf club head 4000 of FIG. 127 with the pocket 4080 and the weight assembly 4004 of the golf club head 4000 removed. FIG. 132 is another top view of the golf club head 4000 of FIG. 127 with the crown piece 4054, the pocket 4080, and the weight assembly 4004 of the golf club head 4000 removed. FIG. 133 is a perspective view of the pocket 4080 and the weight assembly 4004 of the golf club head of FIG. 127 when the weight assembly 4004 is in a locked configuration. FIG. 134 is another perspective view of the pocket 4080 and the weight assembly 4004 of the golf club head 4000 of FIG. 127 when the weight assembly 4004 is in a locked configuration. FIG. 135 is another perspective view of the pocket 4080 and the weight assembly 4004 of the golf club head 4000 of FIG. 127 when the weight assembly 4004 is in an unlocked configuration. FIG. 136 is another perspective view of the pocket 4080 and the weight assembly 4004 of the golf club head 4000 of FIG. 127 when the weight assembly 4004 is in an unlocked configuration. FIG. 137 is a perspective view of the pocket 4080 of the golf club head 4000 of FIG. 127 with the weight assembly 4004 removed.FIG. 138 is a perspective view of the cover 4030 of the weight assembly 4004 of the golf club head 4000 of FIG. 127. FIG. 139 is another perspective view of the cover 4030 of the weight assembly 4004 of the golf club head 4000 of FIG. 127. FIG. 140 is a perspective view of the weight 4028 of the weight assembly 4004 of the golf club head 4000 of FIG. 127. FIG. 141 is another perspective view of the weight 4028 of the weight assembly 4004 of the golf club head 4000 of FIG. 127.

[0227] Referring simultaneously to FIGS. 127-141, the golf club head 4000 may include a body portion 4006 having a striking face 4008 with a lower leading edge 4010 extending between the toe 4014 and the heel 4016 and an opposite upper topline edge 4012. The striking face 4008 may have a plurality of grooves 4019 (or, score lines), and the plurality of grooves 4019 are formed in the striking face 4008 to help impart spin to a golf ball when struck by the striking face 4008 and extend in the toe-heel direction. The body portion 4006 may have a sole 4002, and the sole 4002 extends from the lower leading edge 4010 on the bottom side of the golf club head 4000. The crown 4050 may be connected between the sole 4002 and the upper topline edge 4012, and the crown 4050 may be joined to the sole 4002 along a skirt 4052 of the body portion 4006. The striking face 4008, the sole 4002, and the crown 4050 may be connected together and are adapted to define at least a portion of the outer surface 4020 of the body portion 4006. The body portion 4006 may have a cavity 4000C, and the cavity 4000C is at least partially surrounded by the striking face 4008, the sole 4002, and the crown 4050. The hosel 4001 may be disposed on the heel 4016 and may be configured to connect to a shaft (not shown).

[0228] The body portion 4006 may include a crown piece 4054 (see FIG. 128), and the crown piece 4054 is attached (e.g., welded) to the body portion 4006 so as to conceal an access hole portion 4000AH (see FIG. 129) that is at least partially within the crown 4050. The crown piece 4054 may also define at least a portion of the crown 4050. The body portion 4006 may be manufactured to include the access hole portion 4000AH to provide access to the cavity 4000C, such that manufacturing steps that require access to the cavity 4000C can be performed. Although an example where the access hole portion 4000AH is within the crown 4050 is shown, the present disclosure is not limited thereto. In some examples, the access hole portion 4000AH may be at least partially within at least one of the crown 4050, the sole 4002, or the striking face 4008. The outer surface 4020 of the body portion 4006 may have a recessed surface 4021 at least partially around the access hole portion 4000AH, and an outer portion of the crown piece 4054 may be attached to the recessed surface 4021. The thickness of at least the outer portion of the crown piece 4054 may be substantially the same as the depth by which the recessed surface 4021 is recessed from a portion of the outer surface 4020 adjacent to the recessed surface 4021, such that when the crown piece 4054 is attached to the body portion 4006, the crown piece 4054 can be continuous and at substantially the same height as the region of the outer surface 4020 adjacent to the recessed surface 4021.

[0229] A pocket 4080 that defines a recessed channel 4026 may be provided within the body portion 4006, and the weight assembly 4004 may be coupled to the body portion 4006 within the recessed channel 4026. The weight assembly 4004 will be described in more detail below.

[0230] The pocket 4080 can be at least partially inserted into the cavity 4000C through the pocket hole portion 4022 in the body portion 4006. The pocket hole portion 4022 can be shaped and sized to receive at least a portion of the pocket 4080 (e.g., a central portion or a portion defining the recessed channel 4026). In some examples, such as the examples shown in FIGS. 127-141, the pocket hole portion 4022 is in the sole 4002. However, the present disclosure is not limited thereto. For example, the pocket hole portion 4022 can be provided at least partially in at least one of the sole 4002, the crown 4050, or the striking face 4008. In some examples, the golf club head is an iron-type golf club head having a striking face, a sole, and a back portion, the back portion is positioned behind the striking face, is connected between the sole and the upper topline edge of the striking face, and the pocket hole portion can be provided at least partially in at least one of the sole or the back portion.

[0231] The pocket 4080 can have an outer surface 4080ES, and when the pocket 4080 is at least partially inserted through the pocket hole portion 4022, the outer surface 4080ES faces outward of the golf club head 4080. For example, the outer surface 4080ES of the pocket 4080 can be continuous and at substantially the same height as the outer surface 4020 of the body portion 4006. The recessed channel 4026 can extend inwardly into the body portion 4006 from an opening in the outer surface 4080ES to the bottom track 4036 of the recessed channel 4026.

[0232] The pocket 4080 may be the same as or different from the body portion 4006 with respect to the material. For example, the body portion 4006 may include a first material, and the pocket 4080 may include a second material, and the second material may be the same as or different from the first material. In some examples, the second material may be less dense than the first material. The first material may be, for example, a polymer, and the second material may be, for example, a metal. The pocket 4080 may be manufactured separately from the body portion 4006 and then installed into the body portion 4006, as opposed to manufacturing the body portion such that it has a cast-in recessed channel. Manufacturing the body portion such that it has a cast-in recessed channel may require a process that is complicated by constraints related to casting, core removal, etc., and the cast-in recessed channel will generally be defined by the same material as the body portion is formed from, which may significantly increase the weight of the golf club head. By manufacturing the pocket 4080 separately from the body portion 4006 using a lightweight material and then installing the pocket 4080 into the body portion 4006, the manufacturing process of the golf club head 4000 may be simplified and the weight of the golf club head 4000 may be reduced. In an example, the pocket 4080 may include a single unitary piece (e.g., molded plastic).

[0233] Pocket 4080 may define a channel 4026 recessed in the central portion of the pocket 4080 between the heel end 4080H of the pocket 4080 and the toe end 4080T of the pocket 4080. When the pocket is installed, the toe end 4080T may be a part of the pocket 4080 proximal to the toe 4014 and distal to the heel 4016, and the heel end 4080H may be a part of the pocket 4080 proximal to the heel 4016 and distal to the toe 4014. Pocket 4080 may be at least partially fixed to the main body 4006 by at least one pocket fastener. For example, pocket 4080 may be at least partially fixed to the main body 4006 by a first pocket fastener 4081 that fixes the heel end 4080H of the pocket 4080 to the main body 4006 and a second pocket fastener 4085 that fixes the toe end 4080T of the pocket 4080 to the main body 4006. In some examples, pocket 4080 is at least partially fixed to the main body 4006 by epoxy with (or without) at least one pocket fastener. The epoxy is at least partially applied to the pocket 4080 around a part of the main body 4006 that forms the pocket hole 4022, at least partially fixes the pocket 4080 into the pocket hole 4022, and may at least partially seal the pocket hole 4022.

[0234] The first pocket fastener 4081 may include a head 4082 at the first end of the first pocket fastener 4081, a tip 4083 at the second end of the first pocket fastener 4081 opposite the first end, and a shaft (e.g., a shaft with at least partially threaded) extending from the head 4082 to the tip 4083. The second pocket fastener 4085 may include a head 4086 at the first end of the second pocket fastener 4085, a tip 4087 at the second end of the second pocket fastener 4085 opposite the first end, and a shaft (e.g., a shaft with at least partially threaded) extending from the head 4086 to the tip 4087.

[0235] In the example shown, when installed, the first pocket fastener 4081 extends from the head 4082 into the body portion 4006 towards the tip 4083 (e.g., towards or into the cavity 4000C), and the second pocket fastener 4085 extends from the head 4086 into the body portion 4006 towards the tip 4087. For example, the tips 4083 and 4087 of the first and second pocket fasteners 4081 and 4085 can be positioned deeper inside the body portion 4006 from the outer surface 4020 (or from the external surface 4080ES) than the heads 4082 and 4086. In some such examples, manufacturing the golf club head 4000 can include attaching the pocket 4080 to the body portion 4006 by screwing the first and second pocket fasteners 4081 and 4085 at least partially into the pocket 4080 and at least partially into the body portion 4006 from outside the body portion 4006. However, the present disclosure is not limited thereto.

[0236] The pocket 4080 may include a first protrusion 4084 at the heel end 4080H and a second protrusion 4088 at the toe end 4080T. The main body 4006 may have a first recess 4024 (see FIG. 131) in the outer surface 4020 between the pocket hole portion 4022 and the heel 4016, and may be shaped and sized to receive at least a portion of the first protrusion 4084. The main body 4006 may have a second recess 4025 in the outer surface 4020 between the pocket hole portion 4022 and the toe 4014, and may be shaped and sized to receive at least a portion of the second protrusion 4088. The pocket 4080 may be configured such that when the pocket 4080 is at least partially inserted through the pocket hole portion 4080, the first and second protrusions 4084 and 4088 fit into the first and second recesses 4024 and 4025, respectively. The first and second protrusions 4084 and 4088 may engage the first and second recesses 4024 and 4025 and help fix the position of the pocket 4080 when the pocket 4080 is installed in the main body 4006.

[0237] The pocket 4080 may have a first pocket fastener hole portion 4089 at the heel end 4080H (see FIG. 137), and may be shaped and sized to at least partially receive the first pocket fastener 4081. The pocket 4080 may have a second pocket fastener hole portion 4090 at the toe end 4080T, and may be shaped and sized to at least partially receive the second pocket fastener 4085. The first pocket fastener hole portion 4089 may have a shallow portion shaped and sized to receive at least a portion of the head 4082 of the first pocket fastener 4081, and a deep portion shaped and sized to receive at least a portion of the shaft of the first pocket fastener 4081. The shallow portion may be a recessed surface in the outer surface 4080ES, and the deep portion may be a through-hole portion in the pocket 4080. In some examples, the deep portion may be shaped and sized such that it cannot receive at least a portion of the head 4082. The second pocket fastener hole portion 4090 may have a configuration similar to that of the first pocket fastener hole portion 4089.

[0238] The body portion 4086 may have a first pocket fastener receiver 4027 (see FIG. 131) shaped and sized to at least partially receive the first pocket fastener 4081, and a second pocket fastener receiver 4029 shaped and sized to at least partially receive the second pocket fastener 4085. The first pocket fastener receiver 4027 may be positioned between the pocket hole portion 4022 and the heel 4016, and the second pocket fastener receiver 4029 may be positioned between the pocket hole portion 4022 and the toe 4014. In some examples, the first pocket fastener receiver 4027 is a hole in a first recess 4024 that extends therethrough to the cavity 4000C, and the second pocket fastener receiver 4029 is a hole in a second recess 4025 that extends therethrough to the cavity 4000C. The pocket 4080 may be configured such that when the pocket 4080 is at least partially inserted into the pocket hole portion 4022, the first and second pocket fastener holes 4089 and 4090 align with the first and second pocket fastener receivers 4027 and 4029, respectively, and the first pocket fastener 4081 may extend at least partially through both the first pocket fastener hole 4089 and the first pocket fastener receiver 4027, and the second pocket fastener 4085 may extend at least partially through both the second pocket fastener hole 4090 and the second pocket fastener receiver 4029.

[0239] The pocket 4080 may have a lip 4078 (see FIGS. 134 and 137) that forms at least a portion of the outer surface 4080ES of the pocket 4080, and the lip 4078 may at least partially surround at least one of the recessed channel 4026, the first protrusion 4089, or the second protrusion 4090. The body portion 4006 may have a recessed surface 4023 (see FIG. 131) within the outer surface 4020, the recessed surface 4023 corresponding to the lip 4078 and at least partially surrounding at least one of the pocket hole 4022, the first depression 4024, or the second depression 4025. The recessed surface 4023 may be recessed from the outer surface 4020 by a depth substantially equal to the thickness of the lip 4078 such that when the pocket 4080 is at least partially inserted (e.g., installed) through the pocket hole 4080 into the body portion 4006, the outer surface 4080ES of the pocket 4080 is continuous with the outer surface 4020 at substantially the same height.

[0240] The recessed channel 4026 may have some features that are the same as (or similar to) the features of other recessed channels illustrated and described herein. In some examples, the recessed channel 4026 has opposing first and second sidewall portions 4038 and 4040 that extend along the toe - heel direction, and opposing toe end wall portion 4044 and heel end wall portion 4046, where the toe end wall portion 4044 is adjacent to the toe end 4080T and the heel end wall portion 4046 is adjacent to the heel end 4080H. The first sidewall portion 4038 may be closer to the striking face 4008 than the second sidewall portion 4040, but the present disclosure is not limited thereto. Also, the recessed channel 4026 may have a bottom track 4036, the bottom track 4036 being offset from the outer surface 4080ES of the pocket 4080 and disposed between the first sidewall portion 4038 and the second sidewall portion 4040 and also between the toe end wall portion 4044 and the heel end wall portion 4046.

[0241] The weight assembly 4004 may include some features that are the same as (or similar to) the features of other weight assemblies described and illustrated herein. In some examples, the weight assembly 4004 includes a weight 4028, a cover 4030, and a fastener 4032. The weight 4028 is at least partially disposed within the recessed channel 4026 and may be configured to move (e.g., slide) therein. The cover 4030 at least partially extends over the recessed channel 4026 and may at least partially cover the weight 4028 within the recessed channel 4026. In some examples, the cover 4030 is adapted to releasably secure the weight 4028 within the recessed channel 4026. The fastener 4032 may be configured to releasably secure (e.g., indirectly releasably secure) the weight 4028 within the recessed channel 4026. In some examples, the fastener 4032 connects the cover 4030 to the body portion 4006 and is selectively movable along the fastener axis 4070 such that the fastener 4032 is configured to simply indirectly secure the weight 4028 within the recessed channel 4026 by the cover 4030. However, the present disclosure is not limited thereto. For example, in some embodiments, the golf club head may include a weight assembly including a weight at least partially within a pocket's recessed channel and a fastener configured to directly and releasably secure the weight within the recessed channel.

[0242] The weight assembly 4004 may be positionable in at least a locked configuration and an unlocked configuration. In the locked configuration, the cover 4030 is at least partially disposed within the recessed channel 4026, and the weight 4028 is fixed within the recessed channel 4026. In the unlocked configuration, the cover 4030 is at least partially raised out of the recessed channel 4026, and the weight 4028 is selectively movable within the recessed channel 4026. In some examples, the weight assembly 4004 is also positionable in a weight removable configuration, in which the cover 4030 is fully raised out of the recessed channel 4026, enabling the weight 4028 to be removed from the recessed channel 4026.

[0243] The cover 4030 may have a flange 4058 (see FIG. 139), and the flange 4058 extends along the toe-heel direction between the opposing toe end wall portion 4030T and the heel end wall portion 4030H. The weight 4028 may have a groove portion 4066 (see FIG. 140), and the groove portion 4066 is shaped and sized to receive at least a portion of the flange 4058, and is configured such that the weight 4028 is slidably engaged with the weight 4030. When the weight 4028 is slidably engaged with the cover 4030, the toe end wall portion 4030T and the heel end wall portion 4030H may prevent the weight 4028 from sliding off the flange 4058 along the longitudinal axis of the flange 4058. In some examples, the weight 4028 is engaged with the cover 4030 and is configured to move with the cover 4030 when the weight assembly 4004 moves between a locked configuration and an unlocked configuration. However, the present disclosure is not limited thereto. In some other examples, the weight 4028 is not engaged with the cover 4030 in such a manner, and may be configured to remain in the recessed channel 4126 (e.g., by the force of gravity) when the weight assembly 4004 moves from the locked configuration to the unlocked configuration.

[0244] The weight 4028 may have a side recess 4062 (see FIG. 141), and the pocket 4080 may include at least one positioning lug 4034 (see FIG. 137), and at least one positioning lug 4034 is arranged along the toe - heel direction on at least one of the first side wall portion 4038 or the second side wall portion 4040. In the example shown, the pocket 4080 includes five positioning lugs 4034 arranged along the toe - heel direction on the first side wall portion 4038. The side recess 4062 may be shaped and sized to receive at least a portion of each of the at least one positioning lug 4034, and the weight 4028 is configured to selectively engage with the at least one positioning lug 4034. The positioning lug 4034 helps to fix the position of the weight 4028 in the recessed channel 4026 that is recessed along the toe - heel direction, and may define an individual position in the recessed channel 4026 where the weight 4028 can be positioned when the weight assembly 4004 is in the locked configuration.

[0245] In some examples, the pocket 4080 includes at least one pocket notch 4091 (see FIG. 137), and at least one pocket notch 4091 is on the outer surface 4080ES of the pocket 4080 and is disposed along at least one of the first side wall portion 4038 or the second side wall portion 4040. At least one pocket notch 4091 can be positioned along the toe - heel direction so as to respectively correspond to the position of at least one positioning lug 4034. In the example shown, five pocket notches are provided on the outer surface 4080ES and are disposed along the first side wall portion 4038. The pocket 4080 may include at least one position indicator symbol 4075, and at least one position indicator symbol 4075 is on the outer surface 4080ES and is disposed along the toe - heel direction. At least one position indicator symbol 4075 can be positioned along the toe - heel direction so as to respectively correspond to the position of at least one pocket notch 4091. In the example shown, five position indicator symbols labeled T2, T1, N, H1, and H2 are arranged in this order in the toe - heel direction from the toe end 4080T to the heel end 4080H. The cover 4030 may include at least one cover notch 4092 (see FIGS. 138 - 139), and at least one cover notch 4092 is disposed along the side of the cover 4030 facing the first side wall portion 4038 when the weight assembly 4004 is in the locked configuration. At least one cover notch 4092 can be positioned along the toe - heel direction so as to respectively correspond to at least the position of the pocket notch 4091. The weight 4028 may be visible through at least one pocket notch 4091 and at least one cover notch 4092 when the weight assembly 4004 is in the locked configuration, such that the position of the weight 4028 in the recessed channel 4026 along the toe - heel direction when the weight assembly 4004 is in the locked configuration can be identifiable.When the weight assembly 4004 is in the locked configuration, between about 0% and about 30% of the outer surface of the weight 4028 may be visible.

[0246] The cover 4030 may include a main body portion 4056 (see FIG. 138) and a fastener projection 4057 extending from the main body portion 4056. The main body portion 4056 may be a part of the cover 4030 that at least partially extends above the recessed channel 4026 and at least partially covers the weight 4028 in the recessed channel 4026 when the weight assembly 4004 is in the locked configuration. The fastener projection 4057 may extend from the main body portion 4056, for example, in a direction perpendicular to the toe-heel direction, and the fastener projection 4057 may have a hole 4059 shaped and sized to at least partially receive the fastener 4032. In some examples, the fastener 4032 includes a head and a shaft extending from the head (e.g., a shaft that is at least partially threaded). The hole 4059 may have a shallow portion and a through portion. The shallow portion of the hole 4059 may be shaped and sized to receive at least a portion of the head of the fastener 4032, and the through portion of the hole 4059 may extend completely through the fastener projection 4057 and may be shaped and sized to at least partially receive the shaft of the fastener 4032. In some examples, the through portion of the hole 4059 is shaped and sized such that it cannot receive at least a portion of the head of the fastener 4032.

[0247] The pocket 4080 may, for example, have a recess 4094 (see FIG. 137) in a portion of the outer surface 4080ES, at least partially along the second side wall portion 4040. The recess 4094 may be shaped and sized to allow the fastener protrusion 4057 to extend at least partially through the recess 4094. The pocket 4080 may include a fastener tab 4095 that protrudes from the recess 4094 in the outer surface 4080ES of the pocket 4080. The fastener tab 4095 may have a hole 4096 that is shaped and sized to at least partially receive the fastener 4032 (e.g., at least a portion of the shaft of the fastener 4032).

[0248] The body portion 4006 may have a fastener cutout 4071 in the outer surface 4020. The fastener cutout 4071 may be shaped and sized to receive at least a portion of the fastener tab 4095 and at least a portion of the fastener protrusion 4057. The fastener tab 4095 and the fastener protrusion 4057 may at least partially fix the positions of the pocket 4080 and the cover 4030, respectively, when they are at least partially fitted into the fastener cutout 4071. The body portion 4006 may have a fastener receiver 4072 that is positioned, for example, within the fastener cutout 4071 and is shaped and sized to at least partially receive the fastener 4032 (e.g., at least a portion of the shaft of the fastener 4032). The hole 4059 in the fastener protrusion 4057 of the cover 4030, the hole 4096 in the fastener tab 4095 of the pocket 4080, and the fastener receiver 4072 may all be aligned such that the fastener 4032 can extend at least partially through each of the hole 4059, the hole 4096, and the fastener receiver 4072 to connect the cover 4030 to the body portion 4006.

[0249] FIG. 142 is a top view of another golf club head 4100 with another weight assembly 4104. In particular, golf club head 4100 is shown as a metalwood type golf club head. FIG. 143 is a top cross-sectional view of golf club head 4100 of FIG. 142 taken along line 143a-143a of FIG. 142. FIG. 144 is a cross-sectional view of golf club head 4100 of FIG. 142 taken along line 144a-144a of FIG. 142 with weight assembly 4104 in a locked configuration. Golf club head 4100 may include some features similar to (or the same as) the features illustrated or described herein with respect to golf club head 4000 of FIGS. 127-141. Certain components are described herein and thus are not necessarily described further.

[0250] Referring simultaneously to FIGS. 142-144, golf club head 4100 may include a body portion 4106 including a toe 4114, a heel 4116, a hosel 4101, a striking face 4108, a sole 4102, and a crown 4150. The body portion 4106 may include a crown piece 4154, which is attached to the body portion 4106 and forms at least a portion of the crown 4150. Golf club head 4100 may include a pocket 4180 that defines a recessed channel 4126, and the pocket 4180 is at least partially inserted into cavity 4100C of the body portion 4106 through a pocket hole (not shown). Pocket 4180 may have some features similar to (or the same as) the features illustrated and described herein with respect to pocket 4080 of FIGS. 127-141.

[0251] The pocket 4180 can be fixed to the main body 4106 by at least one pocket fastener. In the example shown, the pocket 4180 is fixed to the main body 4106 by a first pocket fastener 4181 and a second pocket fastener 4185. The first pocket fastener 4181 may have a head 4182, a tip 4183, and a shaft extending from the head 4182 to the tip 4183 (e.g., a shaft that is at least partially threaded), and the second pocket fastener 4185 may have a head 4186, a tip 4187, and a shaft extending from the head 4186 to the tip 4187 (e.g., a shaft that is at least partially threaded). In the example shown, the first pocket fastener 4181 extends from the head 4182 to the tip 4183 outwardly from the main body 4106, and the second pocket fastener 4185 extends from the head 4186 to the tip 4187 outwardly from the main body 4106. For example, the heads 4182 and 4186 of the first and second pocket fasteners 4181 and 4185 may be positioned deeper inwardly of the main body 4106 from the outer surface 4120 (or from the outer surface of the pocket 4180) than the tips 4183 and 4187, respectively. In some such examples, manufacturing the golf club head 4100 may include attaching the pocket 4180 to the main body 4106 by at least partially threading the first and second pocket fasteners 4181 and 4185 into the main body 4106 and at least partially into the pocket 4180 from inside the cavity 4100C of the main body 4106.

[0252] The weight assembly 4104 can be coupled to the golf club head 4100 in the recessed channel 4126, and the weight assembly 4104 may include some features similar to (or the same as) the features illustrated and described herein with respect to the weight assembly 4004 of FIGS. 127-141. The weight assembly 4104 may include a weight 4128, a cover 4130, and a fastener (not shown), the weight 4128 is at least partially disposed in the recessed channel 4126 and is configured to move (e.g., slide) therein, the cover 4130 at least partially extends above the recessed channel 4126 and is adapted to releasably secure the weight 4128 in the recessed channel 4126, and the fastener is configured to releasably secure the weight 4128 in the recessed channel 4126, for example, only indirectly by the cover 4130. The weight assembly 4104 may be positionable in at least an unlock configuration and a lock configuration, in the unlock configuration, the cover 4130 is at least partially raised out of the recessed channel 4126 and the weight 4128 is selectively movable in the recessed channel 4126, and in the lock configuration, the cover 4130 is at least partially disposed in the recessed channel 4126 and the weight 4128 is secured in the recessed channel 4126.

[0253] FIG. 145 is a top view of another golf club head 4200 with another weight assembly 4204. In particular, the golf club head 4200 is shown as a metalwood type of golf club head. FIG. 146 is a cross-sectional view of the golf club head 4200 of FIG. 145 taken along line 146a-146a of FIG. 145. FIG. 147 is a side view of the pocket 4280 of the golf club head 4200 of FIG. 145. The golf club head 4200 may include some features similar to (or the same as) the features illustrated and described herein with respect to the golf club head 4000 of FIGS. 127-141. Certain components are described herein and thus are not necessarily described further.

[0254] Referring to the examples of FIGS. 145-147, the golf club head 4200 includes a body portion 4206 that includes a toe 4214, a heel 4216, a hosel 4201, a striking face 4208, a sole 4202, and a crown 4250. The golf club head 4200 may include a pocket 4280 that is at least partially inserted into the cavity 4200C of the body portion 4206 through a pocket hole (not shown), and the pocket 4280 may be at least partially fixed to the body portion 4206 by at least one pocket fastener (e.g., by at least first and second pocket fasteners 4281 and 4285). The pocket 4280 may include a first protrusion 4284 at the heel end 4280H of the pocket 4280 and a second protrusion 4288 at the toe end 4280T of the pocket 4280. In the example shown, the first protrusion 4284 forms part of a first hook together with the central portion 4280C of the pocket 4080 that defines a recessed channel 4226, and the second protrusion 4288 forms a second hook together with the central portion 4280C. For example, the first protrusion 4284 may be spaced from the central portion 4280C in the toe-heel direction with a gap 4284G therebetween, and the second protrusion 4288 may be spaced from the central portion 4280C in the toe-heel direction with a gap 4288G therebetween.

[0255] The weight assembly 4204 can be connected to the golf club head 4200 in the recessed channel 4226, and the weight assembly 4204 may include some features that are similar (or the same) to those illustrated and described herein with respect to the weight assembly 4004 of FIGS. 127-141. The weight assembly 4204 may include a weight 4228, a cover 4230, and a fastener 4232. The weight 4228 is at least partially disposed within the recessed channel 4226 and is configured to move (e.g., slide) therein. The cover 4230 at least partially extends over the recessed channel 4226 and is adapted to releasably secure the weight 4228 within the recessed channel 4226. The fastener 4232 is configured to releasably secure the weight 4228 within the recessed channel 4226, but only indirectly by the cover 4230. The weight assembly 4204 may be positionable in at least an unlock configuration and a lock configuration. In the unlock configuration, the weight 4228 is at least partially raised out of the re...

Claims

1. A golf club head, comprising: Including a main body portion, The main body portion is a striking face having a lower leading edge; a sole extending from the lower leading edge, the striking face and the sole forming a portion of an outer surface of the body; Including, In addition, the golf club head a recessed channel formed in said exterior surface; Weight assembly and Including, The weight assembly includes: a weight, the weight being at least partially disposed within the recessed channel and configured to be movable within the recessed channel; a cover at least partially covering the recessed channel, the cover including a cover main body portion, a top rail, and a side rail, the top rail extending along a toe-heel direction and projecting from the cover main body portion along a first direction, and the side rail extending along a toe-heel direction and projecting from the cover main body portion along a second direction different from the first direction; a fastener connecting the cover to the body and configured to indirectly retain the weight within the recessed channel by the cover; Including, the weight has top and side grooves shaped and sized to receive at least a portion of the top and side rails, respectively; the upper channel portion having opposed front and rear surfaces proximal and distal to the striking face, respectively, and a bottom surface connecting the front and rear surfaces; the side grooves having opposed top and bottom surfaces proximal and distal, respectively, to an exterior surface of the cover configured to face outwardly from the golf club head, and a front surface connecting the top and bottom surfaces.

2. The golf club head of claim 1 , wherein the first and second directions are within 15 degrees of being perpendicular to each other.

3. at least a portion of the front surface, at least a portion of the rear surface, and at least a portion of the bottom surface of the upper groove are each substantially flat, and the substantially flat parts of the front surface and the rear surface of the upper groove are substantially parallel to each other; 2. The golf club head of claim 1, wherein at least a portion of the top surface, at least a portion of the bottom surface, and at least a portion of the front surface of the side groove are each substantially flat, and the substantially flat parts of the top surface and the bottom surface of the side groove are substantially parallel to each other.

4. The golf club head of claim 1 , wherein between about 0% and about 30% of an exterior surface of the weight is visible when the cover secures the weight within the recessed channel.

5. one or more windows formed in the cover and adapted to visually identify a position of the weight within the recessed channel; 2. The golf club head of claim 1, wherein the weight assembly further includes one or more at least partially transparent window members attached to the cover and overlapping the one or more windows.

6. 2. The golf club head of claim 1, wherein the cover is movable between at least an unlocked configuration and a locked configuration via the fastener, wherein in the unlocked configuration, the cover is at least partially elevated out of the recessed channel and the weight is selectively movable within the recessed channel, and wherein in the locked configuration, the cover is at least partially disposed within the recessed channel and the weight is secured within the recessed channel.

7. the fastener is a threaded fastener movable along a fastener axis by rotating about the fastener axis, the threaded fastener being selectively positionable in at least a first position when the cover is in a locked configuration and a second position when the cover is in the unlocked configuration; The weight assembly includes: the weight is completely covered when the cover is in the locked configuration; 7. The golf club head of claim 6, wherein the weight is configured to be visible from beneath the cover when the threaded fastener is rotated from the first position no more than three full revolutions about the fastener axis.

8. The golf club head of claim 1 , wherein the recessed channel is in the sole.

9. A golf club head, comprising: Including a main body portion, The main body portion is a striking face having a lower leading edge; a sole extending from the lower leading edge; Including, In addition, the golf club head a recessed channel formed in the sole; Weight assembly and Including, The weight assembly includes: a weight, the weight being at least partially disposed within the recessed channel and configured to be movable within the recessed channel; a cover coupled to the body portion and adapted to releasably secure the weight within the recessed channel; the cover having an exterior surface and an opposing interior surface and one or more windows extending through the cover between the exterior and interior surfaces; the cover includes a top rail extending along a toe-heel direction and protruding from the interior surface along a first direction; a cover including a side rail extending along a toe-to-heel direction and projecting from a side surface of the cover along a second direction different from the first direction; one or more at least partially transparent window members attached to the cover and overlapping the one or more window openings; Including, the weight has top and side grooves shaped and sized to receive at least a portion of the top and side rails, respectively; the upper channel portion having opposed front and rear surfaces proximal and distal to the striking face, respectively, each of which is substantially planar at least in part, and a bottom surface connecting the front and rear surfaces; The golf club head, wherein the side groove has opposed top and bottom surfaces proximal and distal, respectively, to the exterior surface, each of which is at least partially substantially flat, and a front surface connecting the top and bottom surfaces.

10. the golf club head is a driver type golf club head, a metal wood type golf club head, or a hybrid type golf club head; The golf club head of claim 9 , wherein an outermost surface of the striking face is outwardly curved.

11. 10. The golf club head of claim 9, wherein the weight assembly further includes a threaded fastener connecting the cover to the body and configured to only indirectly retain the weight within the recessed channel.

12. the cover is movable via the threaded fastener between at least an unlocked configuration and a locked configuration, in which the cover is at least partially elevated out of the recessed channel and the weight is selectively movable within the recessed channel, and in which in the locked configuration the cover is at least partially disposed within the recessed channel and the weight is completely concealed except through the one or more windows; 12. The golf club head of claim 11, wherein the weight assembly is configured such that when the cover is moved from the locked configuration toward the unlocked configuration, the weight is visible from beneath the cover before the top rail is completely removed from the recessed channel.

13. 10. The golf club head of claim 9, wherein the one or more window openings include a plurality of window openings disposed along the toe-to-heel direction of the golf club head.

14. 10. The golf club head of claim 9, wherein the one or more window openings include only one window opening elongated along the toe-heel direction of the golf club head.

15. A golf club head, comprising: Including a main body portion, The main body portion is a striking face having a lower leading edge; a sole extending from the lower leading edge, the striking face and the sole forming a portion of an outer surface of the body; Including, In addition, the golf club head a recessed channel formed in said exterior surface; Weight assembly and Including, The weight assembly includes: a weight, the weight being at least partially disposed within the recessed channel and configured to be movable within the recessed channel; a cover coupled to the body portion and adapted to releasably secure the weight within the recessed channel, the cover having one or more window openings adapted to identify a location of the weight within the recessed channel; a threaded fastener connecting the cover to the body and selectively movable along a fastener axis between at least a first position and a second position by rotating about a fastener axis; Including, the cover is movable between at least an unlocked configuration and a locked configuration via the threaded fastener; In the unlocked configuration, the cover is at least partially elevated out of the recessed channel, the weight is selectively movable within the recessed channel, and the threaded fastener is in the first position; In the locked configuration, the cover is at least partially disposed within the recessed channel, the weight is secured within the recessed channel, and the threaded fastener is in the second position; The weight assembly is configured such that when the cover is in the locked configuration, the cover completely conceals the weight except through the one or more window openings, and such that the weight becomes visually exposed from beneath the cover when the threaded fastener is rotated from the first position toward the second position three or fewer full revolutions about the fastener axis.

16. the cover includes an upper rail extending along a toe-to-heel direction of the golf club head and protruding from an interior surface of the cover configured to face the recessed channel; 16. The golf club head of claim 15, wherein the weight has an upper channel shaped and sized to receive at least a portion of the upper rail.

17. 17. The golf club head of claim 16, wherein the upper channel has opposed front and rear surfaces proximal and distal, respectively, to the striking face, and a bottom surface connecting the front and rear surfaces.

18. 17. The golf club head of claim 16, wherein the upper groove is spaced apart from a front surface of the weight proximate the striking face.

19. the cover includes a side rail extending along the toe-heel direction and projecting from a side surface; 17. The golf club head of claim 16, wherein the weight has a side groove shaped and sized to receive at least a portion of the side rail.

20. the recessed channel includes a plurality of locating lugs disposed along a toe-to-heel direction of the golf club head; 16. The golf club head of claim 15, wherein the weight is configured to engage with the one or more locating lugs such that the weight is positionable within the recessed channel at a plurality of discrete locations corresponding to the plurality of locating lugs when the recessed channel secures the weight within the recessed channel.

Images