Golf club with adjustable weight assembly

Abstract

A golf club head includes a body, a recessed channel, and a weight assembly. The weight assembly has a weight, a cover, and a fastener coupling the cover to the body. The cover includes a first end, a second end, and a slot extending at least partially between the first end and the second end. The slot is formed by at least two walls and is sized and shaped to at least partially receive the weight and allow the weight to slide therein. One or more of the at least two walls has a retention rib extending therefrom. The retention rib is elongated in a direction between the first end and the second end and is discontinuous in the elongated direction. The fastener is configured to move the cover between at least two positions, a first position in which the weight is selectively slidable and a second position in which the weight is secured.

Description

[0001] Cross-references to related applications

[0002] This application is a continuation-in-part of U.S. Patent Application No. 17 / 32,488, filed June 29, 2021, which is a continuation-in-part of U.S. Patent Application No. 17 / 222,774, filed April 5, 2021, which is a continuation-in-part of U.S. Patent Application No. 17 / 122,887, filed December 15, 2020, which is a continuation-in-part of U.S. Patent Application No. 16 / 843,640 (now U.S. Patent No. 10,918,917), filed April 8, 2020. Please note that U.S. Patent Application No. 16 / 843,640 is a continuation-in-part of U.S. Patent Application No. 16 / 708,255, filed December 9, 2019; U.S. Patent Application No. 16 / 708,255 is a continuation-in-part of U.S. Patent Application No. 16 / 535,844 (now U.S. Patent No. 10,926,143), filed August 8, 2019; and U.S. Patent Application No. 16 / 535,844 is a continuation-in-part of U.S. Patent Application No. 16 / 387,859 (now U.S. Patent No. 10,695,628), filed April 18, 2019, all of which are incorporated herein by reference in their entirety. To the extent appropriate, this application claims priority to the applications cited above. Technical Field

[0003] This invention relates to a golf club, and more particularly to a golf club head having an adjustable weighting component. Background Technology

[0004] After being struck by a golf club, the flight characteristics of a golf ball depend not only on the swing but also on the club itself. For example, flight characteristics such as right and left swerve, launch angle, spin, and velocity are influenced by the club's design. By adjusting one or more design characteristics of the club, the golf ball's flight characteristics can be improved, thereby enhancing the club's performance. In some cases, adjusting the center of gravity (CG) and / or moment of inertia (MOI) of the clubhead through selective weight placement affects the golf ball's flight characteristics. However, these adjustable weights need to be both securely attached to the clubhead and selectively movable. Therefore, improvements are needed to the adjustable weighting components used for golf clubheads. Summary of the Invention

[0005] In one aspect, the technology relates to a golf club head comprising: a body having an outer surface; a recessed channel defined in the outer surface of the body; and a weight assembly comprising: a weight at least partially disposed within the recessed channel and configured to slide therein; a cover adapted to releasably secure the weight to the recessed channel, the cover comprising: a first end and an opposing second end; a notch extending at least partially between the first and second ends, the notch being formed by at least two walls and sized and shaped to at least partially receive the weight and allow the weight to slide therein, wherein one or more of the at least two walls have retaining ribs extending therefrom, the retaining ribs being elongated in a direction between the first and second ends and discontinuous in the elongation direction; and a fastener receiver disposed opposite the notch; and a fastener at the fastener receiver engaging the cover to the body, wherein the fastener is configured to move the cover between at least two positions, namely a first position and a second position, in which the weight is selectively slidable relative to the body, and in which the weight is fixed relative to the body.

[0006] In one example, the retaining rib includes a first rib and a second rib separated by a gap configured to allow the counterweight to be received at least partially within the slot. In another example, the gap is positioned near a first end of the cover. In yet another example, a slit is formed in the counterweight, wherein the slit slidably engages with the retaining rib. In yet another example, the retaining rib extends from the outer wall of at least two walls of the cover. In one example, the retaining rib is positioned near the distal end of the outer wall. In another example, both the first and second ends of the cover define end walls, the end walls of the first and second ends having no protrusions.

[0007] On the other hand, the present technology relates to a golf club head comprising: a body having an outer surface; a recessed channel defined in the outer surface of the body; and a weight assembly comprising: a weight at least partially disposed within the recessed channel and configured to slide therein, wherein a slit is defined in the weight; a cover adapted to releasably secure the weight to the recessed channel, the cover comprising: a first end and an opposing second end; a notch extending at least partially between the first and second ends, the notch being formed at least by an outer wall of the cover, wherein a retaining rib extends from the outer wall and is configured to slidably engage with the slit of the weight; and a fastener receiver disposed opposite the notch; and a fastener at the fastener receiver connecting the cover to the body, wherein the fastener is configured to move the cover between at least two positions, namely a first position and a second position, wherein in the first position the weight is selectively slidable relative to the body, and in the second position the weight is fixed relative to the body.

[0008] In one example, retaining ribs and fastener receivers are positioned on opposite sides of the cover. In another example, the retaining ribs comprise at least two discrete portions. In yet another example, at least one hollow portion is defined in the counterweight opposite the slit. In yet another example, the at least one hollow portion comprises a hollow portion wholly defined in the counterweight and a hollow portion partially defined in the counterweight. In one example, the slot engages with the counterweight such that the counterweight moves with the cover between at least two positions. In another example, the fastener is the only component of the counterweight assembly extending into the internal cavity of the body.

[0009] On the other hand, the present technology relates to a golf club head comprising: a body having an outer surface; a recessed channel defined in the outer surface of the body; and a weight assembly comprising: a weight at least partially disposed within the recessed channel and configured to slide therein; a cover adapted to releasably secure the weight to the recessed channel, the cover comprising: an outer surface and an opposing inner surface; a first end and an opposing second end, wherein an end wall is defined at both the first and second ends; and a notch extending at least partially between the first and second ends, the notch being sized and shaped to at least partially engage with... The cover includes a counterweight that allows it to slide within the slot, wherein the end walls of the first and second ends define the ends of the slot, and wherein the thickness of the cover between the outer and inner surfaces at the end walls is equal to the thickness of the cover between the outer and inner surfaces at the midpoint of the slot; a fastener receiver disposed opposite the slot; and a fastener at the fastener receiver that connects the cover to the body, wherein the fastener is configured to move the cover between at least two positions, namely a first position and a second position, wherein in the first position the counterweight can selectively slide relative to the body, and in the second position the counterweight is fixed relative to the body.

[0010] In one example, the retaining rib, configured to engage with the counterweight, extends from at least one end wall. In another example, the retaining rib, configured to engage with the counterweight, extends from both end walls. In yet another example, the retaining rib has a square cross-section. In yet another example, the retaining rib is discontinuous, and a gap is formed within the retaining rib. In one example, the length of the slot is approximately three times the length of the gap in the retaining rib.

[0011] This summary is provided to introduce a series of concepts in a simplified form, which will be further described in the detailed description section below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to limit the scope of the claimed subject matter. Attached Figure Description

[0012] Refer to the accompanying diagram below for non-restrictive and non-exhaustive examples.

[0013] Figure 1 This is a perspective view of the bottom of a golf club head with an exemplary weight assembly.

[0014] Figure 2 It is along Figure 1 The cross-sectional view of the golf club head taken from line 2-2 shows the weight assembly in a locked configuration.

[0015] Figure 3 It is along Figure 2 The cross-sectional view of the counterweight component is taken from line 3-3.

[0016] Figure 4 It is along Figure 3 The cross-sectional view of the golf club head taken from line 2-2 shows the weight assembly in the unlocked configuration.

[0017] Figure 5 It is along Figure 4 The cross-sectional view of the counterweight component is taken from line 5-5.

[0018] Figure 6 This is a perspective view of the bottom of a golf club head with another weight component.

[0019] Figure 7 It is along Figure 6 The cross-sectional view of the counterweight component is taken from line 7-7.

[0020] Figure 8 This is a perspective view of a golf club head with an additional weight component.

[0021] Figure 9 This is a perspective view of the bottom of a golf club head with another weight component.

[0022] Figure 10 yes Figure 9 The image shows a top view of a golf club head, with part of the crown removed.

[0023] Figure 11 It is along Figure 9 The cross-sectional view of the counterweight assembly is taken from line 11-11.

[0024] Figure 12 It is along Figure 9 The cross-sectional view of the counterweight assembly is taken from line 12-12.

[0025] Figure 13 This is a cross-sectional view of another counterweight component.

[0026] Figure 14 This is a perspective view of the bottom of a golf club head with another weight component.

[0027] Figure 15 It is along Figure 14 The cross-sectional view of the golf club head taken by line 15-15 shows the weighting components.

[0028] Figure 16 It is along Figure 14 The cross-sectional view of the counterweight assembly is taken from line 16-16.

[0029] Figure 17 It is along Figure 14 The cross-sectional view of the counterweight assembly is taken from line 17-17.

[0030] Figure 18 This is an exploded perspective view of a golf club head with an additional weight component.

[0031] Figure 19 It is along Figure 18 The cross-sectional view of the counterweight assembly is taken from line 19-19.

[0032] Figure 20 This is a partial cross-sectional perspective view of another counterweight component.

[0033] Figure 21 yes Figure 20 Another cross-sectional view of the counterweight assembly shown.

[0034] Figure 22 This is a perspective view of the bottom of a golf club head with another weight component, which is in a locked configuration.

[0035] Figure 23 It is along Figure 22 The cross-sectional view of the counterweight component is taken from line 23-23.

[0036] Figure 24 It has Figure 22 The image shows a perspective view of the bottom of a golf club head with a counterweight assembly in the unlocked configuration.

[0037] Figure 25 It is along Figure 24 The cross-sectional view of the counterweight assembly is taken from line 25-25.

[0038] Figure 26 This is a perspective view of the bottom of a golf club head with another weight component.

[0039] Figure 27 It is along Figure 26 The cross-sectional view of the counterweight assembly is taken from line 27-27.

[0040] Figure 28This is an exploded perspective view of the bottom of a golf club head with another weight component.

[0041] Figure 29 yes Figure 28 The cross-sectional view of the counterweight assembly shown.

[0042] Figure 30 This is a perspective view of the bottom of a golf club head with another weight component.

[0043] Figure 31 It is along Figure 30 The cross-sectional view of the counterweight component is taken from line 31-31.

[0044] Figure 32 This is a perspective view of the bottom of a golf club head with another weight component.

[0045] Figure 33 This is a perspective view of the bottom of a golf club head with another weight component.

[0046] Figure 34 This is a perspective view of the bottom of a golf club head with another weight component.

[0047] Figure 35 This is a perspective view of the bottom of a golf club head with another weight component.

[0048] Figure 36 This is a perspective view of the bottom of a golf club head with another weight component.

[0049] Figure 37 yes Figure 36 An exploded perspective view of the counterweight assembly shown.

[0050] Figure 38 It is along Figure 36 The cross-sectional view of the counterweight component is taken from line 38-38.

[0051] Figure 39 yes Figure 36 An inner surface view of the cover of the counterweight assembly shown.

[0052] Figure 40 It is in the counterweight sliding structure and along Figure 36 The cross-sectional view of the counterweight component is taken from line 40-40.

[0053] Figure 41 It is in the counterweight removal structure and along Figure 36 The cross-sectional view of the counterweight component is taken from line 40-40.

[0054] Figure 42This is a perspective view of the bottom of another golf club head with another weight component, in which the other weight component is in a locked configuration.

[0055] Figure 43 It has Figure 42 The image shows a perspective view of the bottom of a golf club head with a counterweight assembly in the unlocked configuration.

[0056] Figure 44 It is along Figure 42 The cross-sectional view of a golf club head with a weighting component, taken from line 44-44.

[0057] Figure 45 It is along Figure 42 A partial perspective cross-section of the counterweight component, taken from line 44-44.

[0058] Figure 46 This is a bottom view of a golf club head with an additional weight component.

[0059] Figure 47 It is along Figure 46 A perspective sectional view of a golf club head with a counterweight assembly, taken from line 47-47.

[0060] Figure 48 This is a perspective view of another golf club head.

[0061] Figure 49 It has another counterweight component. Figure 48 The image shows a bottom view of the clubhead.

[0062] Figure 50 This is a cross-sectional view of another counterweight component.

[0063] Figure 51 yes Figure 50 The diagram shows a counterweight assembly.

[0064] Figure 52 yes Figure 50 A top view of the cover of the counterweight assembly shown.

[0065] Figure 53 yes Figure 50 Side view of the cover of the counterweight assembly shown.

[0066] Figure 54 This is a bottom view of another golf club head with an additional weighting component.

[0067] Figure 55 It is along Figure 54 The perspective sectional view of the counterweight component is taken from line 54-54.

[0068] Figure 56 It is along Figure 54 The cross-sectional view of the covering is taken from line 54-54 in the figure.

[0069] Figure 57 yes Figure 55 and Figure 56 A perspective view of the counterweight assembly shown.

[0070] Figure 58 yes Figure 57 A schematic top view of the counterweight shown.

[0071] Figure 59 This is a schematic perspective view of an exemplary test machine with another counterweight component.

[0072] Figure 60 It is along Figure 59 The cross-sectional view of the counterweight component is taken from line 60-60.

[0073] Figure 61 It is along Figure 59 Another sectional view of the counterweight assembly, taken from line 61-61.

[0074] Figure 62 This is a schematic perspective view of another testing machine with another counterweight component.

[0075] Figures 63A to 63E The counterweight is in various different positions, along Figure 62 The cross-sectional view of the counterweight component is taken from line 63-63.

[0076] Figure 64 It is along Figure 62 Another sectional view of the counterweight assembly, taken from line 64-64.

[0077] Figure 65 This is a partial perspective view of an exemplary recessed channel within the body of the testing machine.

[0078] Figure 66 yes Figure 65 Another partial perspective view of the recessed channel shown.

[0079] Figure 67 This is a schematic perspective view of another testing machine with another counterweight component.

[0080] Figure 68 It is along Figure 67 The cross-sectional view of the counterweight component in the first configuration is taken by line 67-67.

[0081] Figure 69 It is along Figure 67 The cross-sectional view of the counterweight component in the second configuration is taken by line 67-67.

[0082] Figure 70 This is a schematic perspective view of another testing machine with another counterweight component.

[0083] Figure 71 It is in the unlocked structure Figure 70 A partial cross-sectional view of the counterweight assembly shown.

[0084] Figure 72 It is in a locked structure Figure 70 A partial cross-sectional view of the counterweight assembly shown.

[0085] Figure 73 It is possible to be with Figure 70 A cross-sectional view of another counterweight component used with the test machine shown.

[0086] Figure 74 This is an exploded perspective view of another test machine with another counterweight component.

[0087] Figure 75 This is a perspective view of the bottom of another golf club head with another weighting component.

[0088] Figure 76 It is along Figure 75 The cross-sectional view of the counterweight assembly is taken from line 76-76.

[0089] Figure 77 It is along Figure 75 The cross-sectional view of the counterweight assembly is taken from line 77-77.

[0090] Figure 78 yes Figure 75 An exploded view of the cover of the counterweight assembly shown.

[0091] Figure 79 yes Figure 75 The counterweight assembly shown is in perspective of the locked configuration.

[0092] Figure 80 yes Figure 75 The counterweight assembly shown is in perspective of the unlocked configuration.

[0093] Figure 81 yes Figure 75 The counterweight assembly shown is in perspective view of the counterweight removal configuration.

[0094] Figure 82 This is a perspective view of the bottom of another golf club head with another weighting component.

[0095] Figure 83 It is along Figure 82 The cross-sectional view of the counterweight component is taken from line 83-83.

[0096] Figure 84 yes Figure 84 A perspective view of the cover of the counterweight assembly shown.

[0097] Figure 85 It is in a locked structure Figure 82 A perspective view of the counterweight assembly shown.

[0098] Figure 86 It is in the unlocked structure Figure 82 A perspective view of the counterweight assembly shown.

[0099] Figure 87 yes Figure 82 The counterweight assembly shown is in perspective view of the counterweight removal configuration.

[0100] Figure 88 This is a perspective view of the bottom of another golf club head with another weighting component.

[0101] Figure 89 This is a perspective view of the bottom of another golf club head with another weight component, in which the other weight component is in a locked configuration.

[0102] Figure 90 It is in the unlocked structure Figure 89 A perspective view of the counterweight assembly shown.

[0103] Figure 91 It is in the counterweight adjustment structure Figure 89 A perspective view of the counterweight assembly shown.

[0104] Figure 92 It is along Figure 91 The cross-sectional view of the counterweight component is taken from line 92-92.

[0105] Figure 93 This is a perspective view of the bottom of another golf club head with another weighting component.

[0106] Figure 94 yes Figure 93 A perspective view of the counterweight assembly shown.

[0107] Figure 95 It is in a locked structure and along Figure 93 The cross-sectional view of the counterweight component is taken from line 93-93.

[0108] Figure 96 It is in the unlocked structure and along Figure 93 The cross-sectional view of the counterweight component is taken from line 93-93.

[0109] Figure 97This is a bottom view of the bottom of a golf club head with another weight component.

[0110] Figure 98 It is in a locked structure and along Figure 97 A perspective sectional view of a golf club head taken from line 97-97.

[0111] Figure 99 It is in the unlocked structure and along Figure 97 Another perspective section view of the golf club head, taken from line 97-97.

[0112] Figure 100 yes Figure 97 Another bottom view of the bottom of the golf club head shown.

[0113] Figure 101 yes Figures 97 to 99 The cover of the counterweight assembly and the inner surface view of the counterweight are shown.

[0114] Figure 102 yes Figure 101 Side view of the covering and counterweight shown.

[0115] Figure 103 yes Figure 101 Another inner surface view of the covering shown.

[0116] Figure 104 It is along Figure 103 The cross-sectional view of the covering is taken from line 104-104 in the figure. Detailed Implementation

[0117] The technology described herein envisions a golf club head, such as a fairway metal club head, a driver head, or other golf club head, including an adjustable weighting component. By balancing the weighting of the golf club head, the flight characteristics of the golf ball can be improved, thereby enhancing the performance of the golf club. In the example described herein, the weighting component allows the CG and / or MOI of the golf club head to be adjusted through selective weight placement to influence the flight characteristics of the golf ball, such as right swerve, left swerve, launch angle, ball spin, and velocity. Additionally or alternatively, the weighting component allows the swing weight of the golf club head to be adjustable (e.g., increasing or decreasing the weighting of the club head).

[0118] In this example, the present technology provides a golf club head having a recessed channel defined therein. A slidable weight is at least partially disposed within this channel and secured therein by a cover and fasteners. The cover is configured to indirectly hold the weight within the channel in such a way that the fasteners never engage with the weight. This configuration allows the size, shape, and / or density of the weight to be defined such that fine adjustments to the club head's CG and MOI are possible. Additionally, the cover includes additional features to increase the weight's stability within the channel and reduce unwanted noise or movement during the golf club swing. Furthermore, the weight assembly described herein allows for quick and easy weight adjustments without completely removing any component from the club head. This reduces the loss or misplacement of components during club head adjustments. In one aspect, the weight engages with the cover such that both components can move together relative to the golf club head. Additionally, the weight's tilt relative to the cover is restricted, thereby reducing or preventing the weight from becoming stuck within the channel.

[0119] Figure 1 This is a perspective view of the bottom 102 of a golf club head 100 having an exemplary weight assembly 104. The golf club head 100 is a metal wood-type golf club head having a body 106 including a striking face 108 positioned towards the front of the club head 100 and having a lower edge 110 and an upper edge 112 (e.g., in...). Figure 8 (As shown in the diagram), both the lower edge 110 and the upper edge 112 extend between the toe 114 and the heel 116 of the clubhead 100. The bottom 102 extends from the lower edge 110 on the underside of the clubhead 100, and the crown 118 extends from the upper edge 112 on the top of the clubhead 100. The bottom 102, the striking face 108, and the crown 118 are joined together to define the outer surface 120 of the body 106, wherein an internal cavity 122 is formed inside the body 106. Figure 2 (As shown in the image). The neck 124 is located at the heel 116 and is configured to attach to the shaft (not shown). In some examples, the skirt 126 (in...) Figure 8 (As shown in the diagram) It can also form part of the clubhead 100 and be positioned between the crown 118 and the base 102. In such an example, and for the purposes of this application, the crown 118 can still be considered to be attached or connected to the base 102 via the skirt 126. Furthermore, the body 106 can be formed into any type of clubhead, such as an iron clubhead or a hybrid clubhead, depending on requirements or needs.

[0120] In operation, when the clubhead 100 is positioned in the ready-to-hit position, the bottom 102 typically provides the lower surface of the clubhead 100. The clubhead 100 defines the center of gravity (CG) and moment of inertia (MOI) that affect the flight characteristics of the golf ball when struck by the striking face 108. A weight assembly 104 is attached to the clubhead 100, thereby enabling selective adjustment of the CG and / or MOI of the clubhead 100 as required or needed. In this example, the weight assembly 104 includes a movable weight 128, a cover 130 configured to hold the weight 128 in place, and fasteners 132 for attaching the weight assembly 104 to one or more other parts of the clubhead 100. In some examples, the weight 128 may be formed of tungsten. In some examples, the weight 128 may be between approximately 2 grams and 15 grams. In some specific examples, the weight 128 may be approximately 9 grams.

[0121] An elongated recessed channel 134 is formed in the outer surface 120 of the clubhead 100. More specifically, the channel 134 is substantially straight and is defined in the bottom 102 of the clubhead 100. In other examples, the channel 134 may be defined at any other location on the body 106 (e.g., crown 118 or skirt 126) as required or needed. The channel 134 is sized and shaped to receive at least a portion of the weight 128, allowing the weight 128 to slide therein. In this example, the channel 134 extends substantially straight in the direction of the toe 114-heel 116, allowing the CG and MOI of the clubhead 100 to be adjusted (by selectively moving the weight 128) to achieve fade bias or draw bias. The channel 134 may be angularly offset from the plane of the striking face 108, such as... Figure 1 As shown. In other examples, channel 134 may extend substantially parallel to the striking face 108. In this example, fastener 132 is positioned near the heel side of channel 134. In other examples, fastener 132 may be positioned at any other location relative to channel 134 that enables the counterweight assembly 104 to function as described herein. For example, in reference... Figure 26 Approximately at the midpoint of the channel 134, or near the toe side of the channel 134.

[0122] In operation, and by using fastener 132, cover 130 is coupled to body 106 and extends at least partially over channel 134 to selectively secure weight 128 to clubhead 100. Additionally, cover 130 covers at least a portion of channel 134 to reduce the accumulation of dust and dirt therein. However, fastener 132 is separate from weight 128 and secures weight 128 to clubhead 100 only indirectly (e.g., via cover 130). In this example, fastener 132 and cover 130 are adapted to retain weight 128 in channel 134 only through contact with cover 130, such that fastener 132 never engages with weight 128. As described herein, when the fastener 132 indirectly holds the counterweight 128, the fastener 132 is never directly engaged with the counterweight 128. Instead, other components (e.g., cover 130) are directly engaged with the counterweight 128 to secure it to the club head 100.

[0123] The cover 130 can be loosened or completely removed from the clubhead 100 via fastener 132, allowing the weight 128 to slide within the channel 134 and selectively adjust the CG and MOI as required or needed. Because the weight 128 is selectively movable, the weight assembly 104 (e.g., fastener 132, weight 128, and cover 130) enables the weight 128 to move while also securing it to one or more portions of the clubhead 100, thereby reducing or preventing unwanted movement (e.g., during a club swing). By separating the fastener 132 from the weight 128, the size, shape, and / or density of the weight 128 can be configured to allow for finer adjustment of the CG and MOI of the clubhead 100, thereby improving the performance of the golf clubhead 100. The weight assembly 104 is further described below.

[0124] Figure 2 It is along Figure 1 The cross-sectional view of the golf club head 100 taken by line 2-2 shows the weight assembly 104 in the locking configuration 136. Figure 3 It is along Figure 2 The cross-sectional view of the counterweight component 104 taken from line 3-3 in the figure. Also refer to... Figure 2 and Figure 3 When the counterweight assembly 104 is in the locking configuration 136, the cover 130 is disposed within the channel 134 and the counterweight 128 is secured within the channel 134, thereby restricting movement. In this example, to lock the cover 130 to the body 106, the fastener 132 may be a threaded bolt that threadly engages with 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 106.

[0125] When the cover 130 is in the locked configuration 136, the outer surface 140 of the cover 130 is substantially aligned (e.g., flush) with the outer surface 120 of the body 106. Additionally, the fastener 132 defines a fastener axis 142. In this example, the fastener axis 142 is positioned at an angle 144 relative to a plane 146 perpendicular to the outer surface 140 of the cover 130 adjacent to the fastener 132. The angle 144 defines the orientation in which the cover 130 can move relative to the body 106. The angle 144 can be between approximately 0° (e.g., aligned with plane 146) and approximately 88°. In this example, the angle 144 can be between approximately 20° and 50°. In one example, the angle 144 can be approximately 45°.

[0126] In this example, a single fastener 132 is used to attach the cover 130 to the body 106, and the fastener 132 is positioned at the heel end of the counterweight assembly 104. Thus, to attach the toe end of the cover 130 to the body 106, the cover 130 may include one or more protrusions 148 extending from the toe end. The protrusions 148 are sized and shaped to be received in one or more corresponding chambers 150 defined at the toe end of the channel 134. When the counterweight assembly 104 is in the locking configuration 136, the protrusions 148 are at least partially received in and engaged with the chambers 150. By engaging the cover 130 to the body 106 at the position opposite the fastener 132, the cover 130 is still able to hold the counterweight 128 within the channel 134 and reduce or prevent movement of the counterweight 128 within the locking configuration 136 when the counterweight 128 is positioned away from the fastener 132. In this example, the protrusion 148 extends in the toe-heel direction of the cover 130 and includes at least one inclined surface 152 that frictionally engages with a corresponding inclined surface 154 of the chamber 150. In some examples, the inclined surfaces 152, 154 may be substantially parallel to the fastener axis 142. In other examples, the inclined surfaces 152, 154 may be oriented at an angle different from the fastener axis 142 (e.g., a steeper or shallower angle). Additionally or alternatively, the protrusion 148 and the chamber 150 may extend substantially orthogonally to the toe-heel direction (e.g., in...). Figure 2 (both inside and outside the page).

[0127] The cover 130 may also engage with the body 106 at one or more intermediate locations between the fastener 132 and the opposite end. The support 156 may protrude into the channel 134 at a location between the toe end and the heel end (e.g., near the midpoint of the channel 134). The support 156 is sized and shaped to be received in a corresponding recess 158 defined within the cover 130. When the counterweight assembly 104 is in the locking configuration 136, the support 156 is at least partially received within and engaged with the recess 158. This engagement of the cover 130 with the body 106 at a location remote from the fastener 132 also secures the counterweight 128 within the channel 134 in the locking configuration 136 and reduces or prevents movement of the counterweight 128. In this example, the support 156 extends in the toe-heel direction of the channel 134 and includes at least one inclined surface 160 that frictionally engages with a corresponding inclined surface 162 of the notch 158. In some examples, the inclined surfaces 160, 162 may be substantially parallel to the fastener axis 142. In other examples, the inclined surfaces 160, 162 may extend at an angle of approximately 3° to 88° relative to the bottom of the channel 134. In one example, the inclined surfaces 160, 162 may extend at an angle of approximately 30° relative to the bottom of the channel 134.

[0128] The cam 164 may also project into the channel 134 at a location between the toe end and the heel end (e.g., between the support 156 and the chamber 150). The cam 164 is sized and shaped to be received within a corresponding notch 166 defined in the cover 130. When the counterweight assembly 104 is in the locking configuration 136, the cam 164 is at least partially received within the notch 166. (See below for further details.) Figure 4 The cam 164 and the notch 166 are described further.

[0129] In this example, the cover 130 is generally L-shaped with a long leg 168 and a short leg 170. In the locking configuration 136, the long leg 168 forms the outer surface 140, and the short leg 170 extends within the channel 134. The channel 134 is formed by two opposing sidewalls 172, 174 and a bottom track 176 offset from the outer surface 120 of the body 106. The long leg 168 of the cover 130 is opposite to the track 176 of the channel 134, and the short leg 170 of the cover 130 is adjacent to one sidewall 172. A support 156 and a cam 164 may protrude from the sidewall 172 of the channel 134, and corresponding notches 158 and cutouts 166 may be defined in the short leg 170 of the cover 130. When the weight 128 is secured within the channel 134 and in the locking configuration 136, the weight 128 is compressed between the cover 130 and one or more walls of the channel 134 (e.g., sidewall 174 and / or track 176). Thus, the weight 128 is frictionally secured to one or more portions of the clubhead 100 by the weight assembly 104.

[0130] Additionally, the counterweight 128 can be slidably coupled to the cover 130. The long legs 168 of the cover 130 may include flanges 178 extending therefrom. The flanges 178 are sized and shaped such that they can be at least partially received within a corresponding recess 180 defined in the counterweight 128. In the locking configuration 136, a portion of the counterweight 128 is not covered by the cover 130 and is exposed within the channel 134, such that this portion forms part of the outer surface 120 of the body 106. This allows the position of the counterweight 128 within the channel 134 to be easily determined by visual inspection.

[0131] Figure 4 It is along Figure 1 The cross-sectional view of the clubhead 100 taken by line 2-2 shows the weight assembly 104 in the unlocked configuration 182. Figure 5 It is along Figure 4 The cross-sectional view of the counterweight component 104 taken from line 5-5. Also refer to... Figure 4 and Figure 5 When the counterweight assembly 104 is in the unlocked configuration 182, at least a portion of the cover 130 is lifted and raised from the channel 134, allowing the counterweight 128 to selectively slide within the channel 134 (e.g., along the toe-heel direction 184). In this example, the fastener 132 can be engaged with the cover 130 (e.g., using a locking washer 186). Figure 16 As shown in the diagram, the cover 130 moves along the fastener axis 142 as the fastener 132 rotates. Figure 2(As shown in the diagram) the counterweight 128 can be completely removed from the body 106, as required or necessary, thereby completely removing the counterweight 128 from the channel 134. However, in this example, the counterweight assembly 104 is positioned in the locking configuration 136 (in...). Figure 2 and 3 Movement between the counterweight assembly 104 (shown in the diagram) and the unlocking mechanism 182 does not require separating the counterweight assembly 104 from the body 106. Thus, in the unlocking mechanism 182, the cover 130 can remain attached to the body 106, making these components less likely to be lost or misplaced. In some examples, as required or necessary, the fastener 132 and / or nut 138 may include a hard stop (not shown) to prevent the fastener 132 from completely disengaging from the club head 100 from the threaded connection.

[0132] Since the cover 130 is attached to the body 106 using only a single fastener 132 and the fastener 132 is positioned at the heel end of the counterweight assembly 104, the cam 164 can be used to assist in lifting the toe end of the cover 130 from the channel 134 in the unlocking configuration 182. This allows the counterweight 130 to slide more easily away from the fastener 132. In this example, the cam 164 extends in the toe-heel direction of the channel 134 and includes at least one cam surface 188 that slides into contact with a corresponding cam surface 190 of the notch 166. As the cover 130 moves from the cam 164 into the locking configuration 136 within the notch 166 toward the unlocking 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 may be supported on the cam 164 when the counterweight assembly 104 is in the unlocking configuration 182. Cam surfaces 188 and 190 can be substantially parallel to fastener axis 142.

[0133] Additionally, in the unlocking mechanism 182, the notch 158 can be lifted away from the support 156 to disengage from the inclined surfaces 160, 162 (in Figure 2 (As shown in the diagram). In the unlocking configuration 182, the notch 158 can be partially or fully raised from the support 156. The protrusion 148 can also be raised away from the chamber 150. However, the protrusion 148 can remain at least partially engaged with the chamber 150, so that in the unlocking configuration 182, the counterweight 128 cannot slide out from the toe end of the cover 130 and remains within the channel 134. Furthermore, since the counterweight 128 engages with the cover 130 (e.g., the flange 178 and the recess 180), the counterweight 128 moves together with the cover 130 between the locking configuration 136 and the unlocking configuration 182. This makes it easier for the counterweight 128 to slide in the unlocking configuration 182.

[0134] In some examples, one or more of the weight 128, cover 130, and channel 134 may include complementary features that transpose the position of the weight 128 to the channel 134 and / or the cover 130 (e.g., a corresponding pawl 192 on the cover 130 and a notch (not shown) on the weight 128). These complementary transposition features can provide tactile and / or auditory feedback as the weight 128 moves. Additionally, when the weight assembly 104 is in the locking configuration 136, the complementary transposition features can also provide increased resistance to relative movement between the weight 128 and the channel 134 and / or the cover 130.

[0135] Figure 6 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 200. Figure 7 It is along Figure 6 The cross-sectional view of the counterweight assembly 200, taken by line 7-7. Some parts have been described above and therefore need not be described further. See also... Figure 6 and Figure 7 The counterweight assembly 200 includes a recessed channel 202 defined within the bottom 102 of the body 106 of the clubhead 100; however, this channel 202 extends substantially linearly in the front-rear direction, thereby allowing adjustment of the CG and MOI of the clubhead 100 for launch angle bias. Figure 6 As shown, channel 202 can be substantially orthogonal to the striking face 108. In other examples, channel 202 can extend at an acute or obtuse angle relative 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 near the rear of channel 202 and opposite the striking face 108. In other examples, the fastener 208 can be positioned at any other location relative to channel 202 that enables the weight assembly 200 to function as described herein. For example, at approximately the midpoint of channel 202 or on the striking face 108 side of channel 202.

[0136] In this example, the channel 202 is formed by two opposing sidewalls (i.e., a cover sidewall 210 and an undercut sidewall 212) and a bottom track 214 offset from the outer surface 120 of the body 106. A partial wall 216 also extends from the bottom track 214. Here, the cover 206 is positioned adjacent to the cover sidewall 210 and includes a cornered surface 218. Thus, when the counterweight assembly 200 is in a locked configuration (e.g., ...), Figure 7When the cover 206 is in use, it generates a compressive force 220 along the corner surface 218 acting in the downward and lateral directions to secure the weight 204 between the cover 206 and the undercut sidewall 212. Thus, the weight 204 is frictionally secured by the weight assembly 200 to one or more portions of the body 206 of the clubhead 100, and at least partially beneath the corner surface 218 and the undercut sidewall 212. The weight 204 is at least partially trapezoidal in cross-sectional shape, such that the undercut of the sidewall 212 and the cover 206 help retain the weight 204 within the channel 202. Additionally, the cover 206 engages with the partial wall 216, thereby restricting the movement (e.g., bending or deflection) of the portion of the cover 206 away from the fastener 208 toward the undercut sidewall 212 within the channel 202. Furthermore, the partial wall 216 is substantially parallel to the fastener axis (not shown) of the fastener 208, such that the cover 206 is guided between the locking and unlocking configurations. In some examples, the counterweight assembly 200 may include a support / notch interface as described above to further engage the cover 206 within the channel 202 and increase the fixation of the counterweight 204 to one or more portions of the clubhead 100.

[0137] Figure 8 This is a perspective view of a golf club head 100 with another weight assembly 300. Some components have been described above and therefore need not be described further. In this example, the club head 100 includes a skirt 126 positioned opposite the striking face 108 between the crown 118 and the heel 102. The weight assembly 300 includes a recessed channel 302 defined within the skirt 126 of the body 106 of the club head 100 and extending along the rear periphery 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 engaged to the heel 116 side of the body 106. In other examples, the fastener 308 may be engaged to the toe 114 side of the body 106, as required or needed. The counterweight assembly 300 may include one or more of the counterweight assembly features described herein, such that the counterweight 304 can be secured in a locking configuration (e.g., Figure 8 (As shown) At the same time, adjust the CG and MOI of the clubhead 100 to adjust for right-left deviation.

[0138] Figure 9 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 400. Figure 10 yes Figure 9 The image shows a top view of the golf club head 100, with a portion of the crown 118 removed. Some components have already been described above and therefore need not be described further. See also... Figure 9 and Figure 10The weight assembly 400 includes a recessed channel 402 defined within the bottom 102 of the body 106 of the clubhead 100, extending substantially linearly in the toe-heel direction. The weight assembly 400 also includes a slidable weight 404, a cover 406, and a fastener 408. The channel 402 includes a bottom track 410 on which the weight 404 can slide. In this example, the fastener 408 and the nut 412 coupled to it are offset from the track 410 and positioned towards the rear of the body 106. By offsetting the fastener 408 from the track 410, the length of the track 410 can be extended in the toe-heel direction, allowing the weight 404 to be positioned at more locations on the bottom 102. In other examples, the fastener 408 may be offset from the track 410 and positioned towards the front of the body 106 and the striking face 108, as required or desired.

[0139] In this example, one or more support ribs 414 may extend from the channel 402 and within the internal cavity 122 of the body 106. The support ribs 414 are substantially orthogonal to the length of the channel 402. The support ribs 414 provide structural strength to the channel 402, such that the channel 402 resists deformation when the cover 406 compresses the counterweight 404 within it. In some examples, the support ribs 414 may extend within the internal cavity 122 along the entire distance between the bottom 102 and the crown 118.

[0140] Figure 11 It is along Figure 9 The cross-sectional view of the counterweight component 400 taken from line 11-11. Figure 12 It is along Figure 9 The cross-sectional view of the counterweight assembly 400, taken by line 12-12. Some parts have been described above and therefore need not be described further. See also... Figure 11 and Figure 12 The weight assembly 400 is shown in a locking configuration, whereby the weight 404 is secured within the channel 402. In this example, the weight 404 includes an elastomeric material 416 (e.g., a rubber-based material) that engages with the channel 402 and / or the cover 406, further increasing the stability of the weight 404 in the locking configuration. Additionally, the elastomeric material 416 reduces noise from the weight 404 within the channel 402 during the swing of the clubhead.

[0141] In this example, channel 402 is formed by two opposing sidewalls 418, 420 and a track 410. One sidewall 420 may include an elongated fin 422 extending into channel 402. The counterweight 404 is sized and shaped to be at least partially received within channel 402, and the counterweight 404 includes a bottom surface 424 positioned adjacent to track 410 and a slot 426 engaging the fin 422. Additionally, opposite the slot 426, the counterweight 404 includes a recess 428 engaging a flange 430 of cover 406. Elastomer material 416 may be coupled to the counterweight 404 such that material 416 extends from the bottom surface 424 and also into the slot 426. In one example, elastomeric material 416 may be an integral part extending through one or more holes within the counterweight 404. In other examples, elastomeric material 416 may be adhered to one or more outer surfaces of the counterweight 404. In other examples, at least a portion of the elastomer material 416 may form the counterweight 404 itself.

[0142] In operation, when the cover 406 is in the locked configuration, the flange 430 engages with the groove 428 of the counterweight 404 and compresses the counterweight 404 into the channel 402. This allows the elastomeric material 416 to engage with the track 410 and the fin 422 of the channel 402. By engaging the elastomeric material 416 in more than one position, the stability of the counterweight 404 within the channel 402 is increased. This reduces undesirable movement and rattling of the counterweight 404 within the channel 402. In some examples, the elastomeric material 416 is deformable when compressed into the channel 402. Because the cover 406 engages only a portion of the counterweight 404, when the cover 406 is lifted 432 for unlocking (not shown), the counterweight 404 can rotate 434 within the channel 402, allowing the elastomeric material 416 to disengage from the track 410 and the fin 422. Because the elastomeric material 416 is positioned at least partially away from the channel surface, the rotational movement 434 makes it easier for the counterweight 404 to slide within the channel 402 when in the unlocked configuration. In some examples, the elastomeric material 416 extending from the bottom surface 424 may be positioned only close to the groove 428 to increase the rotational movement 434 of the counterweight 404.

[0143] Cover 406 is substantially L-shaped in cross-section (see...) Figure 12The cover includes a first leg 436 with a flange 430 and a second leg 438 adjacent to the sidewall 418 of the channel 402. The flange 430 may be substantially parallel to the second leg 438 to increase the structural stiffness of the cover 406 in the longitudinal direction. The second leg 438 may extend at least partially within the recess 440 of the track 410 to reduce the bending of the cover 406 in the locked configuration. Additionally, in this example, the protrusion 442 of the cover 406 may be substantially cylindrical in shape. The protrusion 442 is received within a corresponding cylindrical cavity 444. The structure of the protrusion 442 and the cavity 444 increases the engagement of the cover 406 with the body 106 in the locked configuration (e.g., Figure 11 (As shown). In some examples, the projection axis 446 of the protrusion 442 may be substantially parallel to the fastener axis 448. This orientation guides the movement of the cover 406 between the locking and unlocking configurations. In some examples, the protrusion 442 may include a tapered nose. In this example, the counterweight 404 and the channel 402 may include complementary features 450 that shift the position of the counterweight 404 to that of the channel 402.

[0144] Figure 13 This is a cross-sectional view of another counterweight component 500. Some parts have been described above, so further description is unnecessary. Similar to... Figures 9 to 12 In the example described, the weight assembly 500 includes a recessed channel 502 defined within the body 106 of the clubhead. The weight assembly 500 also includes a slidable weight 504 and a cover 506. The cover 506 is shown in a locked configuration, and the slot 508 of the weight 504 engages with the fin 510 of the channel 502. However, in this example, the bottom surface 512 of the weight 504 is positioned to directly abut against the track 514 of the channel 502. Additionally, in this example, the bottom surface 512 of the weight 504 includes a hollow portion 516. When the weight assembly 500 is in an unlocked configuration (not shown), the hollow portion 516 reduces the frictional sliding force on the weight 504. The hollow portion 516 also allows the weight 504 to be sized and shaped while maintaining the required or desired mass and / or density. In some examples, an elastomeric material (not shown) may be at least partially disposed within the hollow portion 516.

[0145] Figure 14This is a perspective view of the bottom 102 of a golf club head 100 with another weight assembly 600. Some components have been described above and therefore need not be described further. The weight assembly 600 includes a recessed channel 602 defined within the bottom 102 of the body 106 of the club head 100. The channel 602 has a substantially curved shape in the direction of the toe 114-heel 116, thereby allowing adjustment of the club head 100's CG and MOI for right-left yaw. In some examples, the curve of the channel 602 matches the rear periphery of the body 106, where the bottom 102 and crown 118 are joined together. The weight assembly 600 also includes a sliding weight 604, a cover 606, and a fastener 608.

[0146] In this example, fastener 608 is positioned in a recessed area of ​​the curved channel 602 and toward the striking face 108 of the body 106. This position allows weight 604 to be positioned adjacent to the rear periphery of the body 106, increasing the adjustability of the clubhead 100's CG and MOI compared to positioning fastener 608 in a protruding area of ​​the curved channel 602 and having weight 604 closer to the striking face 108. Additionally, weight 604 can slide completely from the toe 114 side to the heel 116 side and be positioned anywhere in the channel 602, even adjacent to fastener 608. In other examples, fastener 608 may be positioned in a protruding area of ​​the curved channel 602, depending on requirements or needs. Fastener 608 is also positioned approximately at the midpoint of the channel 602. In other examples, fastener 608 may be offset from the midpoint of channel 602, or two or more fasteners 608 may be used to attach cover 606 to body 106 (e.g., at each end of channel 602).

[0147] Figure 15 It is along Figure 14 The cross-sectional view of the clubhead 100 taken by line 15-15 shows the counterweight assembly 600. Figure 16 It is along Figure 14 The cross-sectional view of the counterweight component 600 taken from line 16-16 in the figure. Figure 17 It is along Figure 14 The cross-sectional view of the counterweight assembly 600, taken along line 17-17. Some components have been described above and therefore need not be described further. See also... Figures 15 to 17The counterweight assembly 600 is shown in a locked configuration, and the counterweight 604 includes a bottom surface 610 and a recess 612. A protrusion 614 is disposed adjacent to the recess 612. Additionally, the counterweight 604 includes an elastomeric material 614. In this example, the elastomeric material 614 is coupled to the counterweight 604 and extends from the bottom surface 610 and also into the recess 612. The elastomeric material 614 is excessive relative to the channel 602 (e.g., an overlap of 0.1 mm to 1.0 mm) such that the material 614 deforms while being compressed within the channel 602. In other examples, the elastomeric material 614 may adhere to the outer surface of the counterweight 604. In still other examples, the elastomeric material 614 may at least partially form the counterweight 604 itself.

[0148] The cover 606 is generally C-shaped and has a flange 616 that engages with the groove 612 of the counterweight 604. Additionally, the cover 606 includes a top leg 618 and side legs 620 opposite the flange 616. The thickness of the top leg 618 is greater than the thickness of the flange 616 and the side legs 620, thereby increasing the structural rigidity of the cover 606 in the longitudinal direction. A fastener 608 is connected to the cover 606 via a locking washer 186, which allows the fastener 608 to rotate relative to the cover 606 while allowing the cover 606 to move along the fastener axis 622 to raise and lower the cover 606 relative to the channel 602.

[0149] In operation, when the cover 606 is in the locked configuration, the flange 616 of the cover 606 engages within the groove 612 of the weight 604. This compresses the weight 604 between the cover 606 and the bottom track 624 of the channel 602. In the locked configuration, the elastomeric material 614 engages with both the cover 606 and the channel 602 to increase the fixation of the weight 604 to one or more portions of the clubhead 100. In some examples, a plurality of grooves 626 are defined within the track 624, and the elastomeric material 614 deforms into the grooves 626 to facilitate securing the weight 604 within the channel 602. Furthermore, the protrusion 614 of the weight 604 can be positioned close to the outer surface 120 of the body 106, making the position of the weight 604 visible. When the counterweight assembly 600 is in the unlocked configuration (not shown), the cover 606 is lifted at least partially from the channel 602, allowing the counterweight 604 to slide selectively therein, for example, via the protrusion 614.

[0150] Each end of the cover 606 may include a generally cylindrical protrusion 628 received within a corresponding cylindrical cavity 630 of the channel 602. The protrusion 628 extends along a protrusion axis 632 that is generally parallel to the fastener axis 622. This orientation guides movement of the cover 606 between locking and unlocking configurations. In some examples, the protrusion 628 may include a tapered nose. Additionally, as... Figure 15 and 16 As shown, chamber 630 can open to the internal chamber 122 of body 106. In other examples, chamber 630 can be closed relative to the internal chamber 122. Depending on requirements or needs, one or more support ribs 634 may also extend from track 624 and into the internal chamber 122.

[0151] Figure 18 This is an exploded perspective view of a golf club head 100 with another weight assembly 700. Some parts have been described above, so further description is unnecessary. Similar to... Figures 14 to 17 In the example described, the weight assembly 700 includes a recessed channel 702 defined within the body 106 of the clubhead 100, and the channel 702 has a substantially curved shape in the direction of the toe 114-heel 116. In some examples, the curve of the channel 702 matches the rear periphery of the body 106, where the bottom 102 and the crown 118 are joined together. The weight assembly 700 also includes a slidable weight 704, a cover 706, and a fastener 708. At each end of the cover 706, a protrusion 710 may extend for engagement within the channel 702.

[0152] Figure 19 It is along Figure 18 The cross-sectional view of the counterweight assembly 700 is shown in line 19-19. Some parts have been described above and therefore need not be described further. The counterweight assembly 700 is... Figure 19 The configuration is shown in a locked position, with the bottom surface 712 of the counterweight 704 positioned directly against the track 714 of the channel 702. Additionally, in this example, the bottom surface 712 of the counterweight 704 includes a hollow portion 716. When the counterweight assembly 700 is in the unlocked position (not shown), the hollow portion 716 reduces the frictional sliding force on the counterweight 704. The hollow portion 716 also allows the counterweight 704 to be sized and shaped while maintaining the required or desired mass and / or density. In some examples, an elastomeric material (not shown) may be at least partially disposed within the hollow portion 716.

[0153] Additionally, the cover 706 includes a corner surface 718 adjacent to the counterweight 704. Thus, when the counterweight assembly 700 is in a locked configuration (e.g., Figure 19When the cover 706 generates a compressive force 720 along the corner surface 718 acting in the downward and lateral directions, it secures the weight 704 between the cover 706 and the undercut sidewall 722 of the channel 702. Thus, the weight 704 is frictionally secured to one or more portions of the clubhead 100 by the weight assembly 700.

[0154] Figure 20 This is a partial cross-sectional perspective view of another counterweight component 800. Figure 21 This is another sectional view of the counterweight assembly 800. Some parts have been described above, so further description is unnecessary. See also... Figure 20 and Figure 21 These sectional views are basically along the front-to-back direction of the golf club head, and are similar to, for example, the reference above. Figure 16 and Figure 17 The example described. The weight assembly 800 includes a recessed channel 802 defined within a body 106. The weight assembly 800 also includes a slidable weight (not shown), a cover 804, and fasteners 806. In this example, the channel 802 is defined by a bottom rail 808 and two opposing sidewalls 810, 812. The bottom rail 808 includes an elastomeric material 814 coupled thereto and extending at least partially into the channel 802. The elastomeric material 814 engages with the weight and further increases the fixation of the weight within the channel 802 in the locking configuration. Additionally, the elastomeric material 814 reduces the noise emitted by the weight during the swing of the clubhead. Alternatively or additionally, the elastomeric material 814 may be coupled to one or more of the sidewalls 810, 812, as required or needed. In other examples, the elastomeric material 814 may be coupled to the cover 804.

[0155] 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 an undercut region 818 within the channel 802, thereby securing the elastomeric material 814 within the channel 802. In other examples, the elastomeric material 814 may be adhered to the channel 802 or the cover 804, as required or desired. The ends 816 of the elastomeric material 814 may be offset from the protrusions 822 of the cover 804, so that the elastomeric material 814 does not interfere with the movement of the cover 804 as described herein between the locking and unlocking configurations.

[0156] Figure 22 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 900, wherein the other weight component 900 is in a locked configuration. Figure 23 It is along Figure 22The cross-sectional view of the counterweight assembly 900, taken along line 23-23. Some components have been described above and therefore need not be described further. See also... Figure 22 and Figure 23 The weight assembly 900 is shown in a locking configuration and includes a recessed channel 902 defined within the bottom 102 of the body 106 of the clubhead 100. The channel 902 has a substantially curved shape in the direction of the toe 114-heel 116, allowing adjustment of the clubhead 100's CG and MOI for right-to-left yaw. In some examples, the curvature of the channel 902 matches the rear periphery of the body 106, where the bottom 102 and crown 118 are joined together. The weight assembly 900 also includes a toe-side slidable weight 904, a heel-side slidable weight 906, a toe-side cover 908, a heel-side cover 910, and a fastener 912.

[0157] In this example, fastener 912 is positioned within channel 902, substantially dividing the weight assembly 900 in two. By positioning fastener 912 within channel 902, the size of the weight assembly 900 on the clubhead 100 is reduced. Furthermore, compared to the examples described above, the mass of fastener 912 is further moved rearward from the striking face 108. Figure 22 As shown, weights 904 and 906 extend from the inner convex side of covers 908 and 910. In other examples, weights 904 and 906 may extend from the outer recessed side of covers 908 and 910, as required or needed. In this example, two slidable weights 904 and 906 are described because fastener 912 prevents the weights from sliding completely from the toe side of channel 902 to the head side and back. In some examples, weight assembly 900 may include only one slidable weight, and fastener 912 and covers 908 and 910 are configured to allow the weight to pass between the toe side 114 and the heel side 116. In other examples, 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 other examples, weights 904 and 906 may be completely removed from channel 902, as required or needed.

[0158] One end of each cover 908, 910 engages with channel 902, for example, via a protrusion / channel interface as described herein, while the other opposite end of each cover 908, 910 engages with fastener 912. In this example, fastener 912 includes a washer 914 disposed below the head. Washer 914 is a generally cylindrical flange extending from a threaded rod, which engages with two corresponding recesses 916 within the covers 908, 910. When the counterweight assembly 900 is in the locked configuration, covers 908, 910 are disposed within channel 902 and secured in place with fastener 912 via recesses 916, thereby preventing counterweights 904, 906 from sliding within channel 902 and locking them in place. Additionally, covers 908, 910 are flush with the outer surface 120 of body 106. In some examples, portions of the defining groove 916 of the covers 908, 910 may extend all the way to the bottom track 918 of the channel 902, thereby reducing or preventing the fastener 912 from becoming too tight.

[0159] Figure 24 This is a perspective view of the bottom 102 of the golf club head 100, in which the weight assembly 900 is shown in an unlocked configuration. Figure 25 It is along Figure 24 The cross-sectional view of the counterweight assembly 900, taken along line 25-25. Some components have been described above and therefore need not be described further. See also... Figure 24 and Figure 25 The counterweight assembly 900 is shown in an unlocked configuration. When the counterweight assembly 900 is in a locked configuration (in... Figure 22 and Figure 23 (As shown in the diagram) During movement, fastener 912 rotates to lift at least partially out of channel 902. This movement of fastener 912 also lifts at least partially out of channel 902 the ends of covers 908, 910 that engage with washers 914, thereby allowing counterweights 904, 906 to slide within channel 902. In some examples, counterweights 904, 906 may engage with corresponding covers 908, 910 to lift away from track 918 for movement.

[0160] In some examples, the covers 908, 910 and fasteners 912 can be completely removed from the body 106 as required or necessary, so that the counterweights 904, 906 can be completely removed from the channel 902. However, moving the counterweight assembly 900 between the locking and unlocking configurations does not require separating the counterweight assembly 900 from the body 106. Thus, in the unlocking configuration, the covers 908, 910 remain attached to the body 106, making it less likely that components will be lost or misplaced.

[0161] In this example, when covers 908, 910 are in the unlocked configuration, the ends of covers 908, 910 that are opposite to fastener 912 and engage with channel 902 (e.g., with a protrusion / channel interface) remain engaged with channel 902 and can form a pivot point about which covers 908, 910 can rotate. In other examples, as described herein, the ends of covers 908, 910 that are opposite to fastener 912 can be at least partially lifted from channel 902. For example, through a cam and cutout interface as described above.

[0162] Figure 26 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 1000. Figure 27 It is along Figure 26 The image shows a sectional view of the counterweight assembly 1000, taken along line 27-27. Some components have already been described above and therefore need not be described further. Meanwhile... Figure 26 and Figure 27 The weight assembly 1000 includes a generally straight recessed channel 1002 defined within a bottom 102. The weight assembly 1000 also includes a slidable weight 1004, a cover 1006, and a fastener 1008. In this example, the fastener 1008 can be positioned approximately at the midpoint of the channel 1002 and offset towards the rear of the clubhead 100. By positioning the fastener 1008 at the midpoint, the distance between the fastener 1008 and the distal ends(s) of the cover 1006 is reduced, thereby increasing the engagement between the cover 1006 and the channel 1002 to secure the weight 1004.

[0163] Similar to the reference above Figure 6 and Figure 7 In the example described, the channel 1002 is formed by two opposing sidewalls (i.e., a cover sidewall 1010 and an undercut sidewall 1012) and a bottom track 1014 offset from the outer surface 120 of the body 106. A partial wall 1016 also extends from the bottom track 1014. The cover 1006 is positioned adjacent to the cover sidewall 1010 and includes a cornered surface 1018. Thus, when the counterweight assembly 1000 is in a locked configuration (e.g., ...), Figure 27When the cover 1006 is engaged, it generates a compressive force along the corner surface 1018 acting in both the downward and lateral directions to secure the counterweight 1004 between the cover 1006 and the undercut sidewall 1012. Thus, the counterweight 1004 is frictionally secured by the counterweight assembly 1000 and is at least partially below the corner surface 1018 and the undercut sidewall 1012. Additionally, the cover 1006 fully engages with the partial wall 1016 via the groove 1020, thereby restricting movement (e.g., bending or deflection) of the portion of the cover 1006 away from the fastener 1008 toward the undercut sidewall 1012 within the channel 1002. Furthermore, the partial wall 1016 is substantially parallel to the fastener axis (not shown) of the fastener 1008, thereby guiding the cover 1006 between the locking and unlocking configurations.

[0164] Figure 28 It is an exploded perspective view of the bottom 102 of a golf club head 100 with another weight component 1100. Figure 29 This is a sectional view of the counterweight assembly 1100. Some parts have already been described above, so further description is unnecessary. (The last sentence appears to be incomplete and possibly refers to a different document.) Figure 28 and Figure 29 The weight assembly 1100 includes a generally straight recessed channel 1102 defined within a bottom 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 can be positioned approximately at the midpoint of the channel 1102 and offset towards the rear of the clubhead 100. As described above, when the cover assembly 1106 is in the locked configuration, it is coupled to the body 106 such that the weight 1104 is secured within the weight assembly 1100 without movement or clicking. 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.

[0165] When the cover assembly 1106 moves toward the locking configuration (e.g., Figure 29Fastener 1108 is fastened to body 106. Fastener 1108 engages with fastener member 1110 and moves fastener member 1110 along fastener axis (not shown) and into channel 102. Fastener member 1110 has tapered surfaces that engage with two longitudinal members 1112, such that when fastener member 1110 is pulled down into channel 1102, longitudinal members 1112 are also pulled down into channel 1102 and a compressive force 1116 is generated along corner surface 1118. The compressive force 1116 acts on transverse member 1114 in the downward and transverse directions to position transverse member 1114 within channel 1102 and compress counterweight 1104 between transverse member 1114 and sidewall 1120 of channel.

[0166] Additionally, to reduce or prevent the counterweight assembly 1100 from being pulled out of the body 106, the transverse member 1114 may engage with the undercut 1122 of the channel 1102. A compressive force 1116 from the longitudinal member 1112 locks the transverse member against the undercut 1122 to prevent movement. Alternatively or supplementarily, a portion of the counterweight 1104 may engage with the sidewall 1120 of the channel 1102 to reduce pull-out of the counterweight assembly 1100 from the body 106. Furthermore, the fastener member 1110 also pushes the longitudinal member 1112 away from the fastener 1108 (e.g., arrow 1124) such that the end 1126 of the member 1112 may engage with a corresponding chamber 1128 in the channel 1102, further reducing pull-out of the counterweight assembly 1100 from the body 106.

[0167] Figure 30 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 1200. Figure 31 It is along Figure 30 The cross-sectional view of the counterweight assembly 1200, taken by line 31-31. Some parts have been described above and therefore need not be described further. See also... Figure 30 and Figure 31 The counterweight assembly 1200 is shown in an unlocked configuration and includes a recessed channel 1202, a slidable counterweight 1204, a cover 1206, and a fastener 1208. The structure, size, shape, and orientation of the channel 1202, the counterweight 1204, and the fastener 1208 can be similar to any of the examples described above. However, in this example, the width 1210 of the cover 1206 extends toward the striking surface 108 such that the cover 1206 forms a larger portion of the bottom 102 and does not merely cover a portion of the channel 1202.

[0168] In some examples, the cover 1206 may be formed to cover 75% or more of the surface area of ​​the bottom 102. In other examples, the cover 1206 may be formed to cover 50% or more of the surface area of ​​the bottom 102. In still other examples, the cover 1206 may cover 25% or more of the surface area of ​​the bottom 102. In yet another example, the cover 1206 may cover between about 10% and 90% of the surface area of ​​the bottom 102. In still other examples, the cover 1206 may cover between about 25% and 75% of the surface area of ​​the bottom 102.

[0169] By enlarging the cover 1206 of the weight assembly 1200, the golf club head structure forming the base 102 of the body 106 can be reduced. In some examples, the cover 1206 can be made of a material lighter than the material used to manufacture the body 106 (e.g., composite materials, plastics, etc.). Thus, the weight saved by the construction of the base structure can be used in other locations on the club head 100 as required or needed, and the CG and MOI of the club head 100 can also be adjusted to improve the flight characteristics of the golf ball. In some examples, the weight saved by the base structure can be incorporated back into the sliding weight 1204. For example, the cover 1206 can reduce the weight of the base structure by 11 grams or more, and some or all of these can be at least partially incorporated into the weight 1204.

[0170] Cover 1206 may include protrusions 1212 extending therefrom, configured to engage corresponding chambers 1214 within each end of channel 1202 to increase the structural rigidity of the cover 1206 connection described in the above example. In one example, protrusion 1212 may be substantially cylindrical and parallel to fastener axis 1216. On the side of cover 1206 opposite to fastener 1208, cover 1206 includes a bracket 1218 adjacent to an extending edge 1220, the extending edge 1220 frictionally engaging with the remaining bottom 102 of clubhead 100 to secure edge 1220 to body 106. In some examples, bracket 1218 may extend at an angle substantially parallel to fastener axis 1216 to guide cover 1206 between locking and unlocking configurations described herein. Bracket 1218 may include one or more brackets 1222 for increasing the structural rigidity of bracket 1218.

[0171] Figure 32 This is a perspective view of the base 102 of a golf club head 100 with another weight assembly 1300. Some parts have been described above, so further description is unnecessary. Similar to... Figure 30 and Figure 31In the example described, the weight assembly 1300 includes an enlarged cover 1302 that selectively secures a slidable weight 1304 to one or more portions of the clubhead 100. However, in this example, the fastener 1306 is positioned further towards the striking face 108 and adjacent to the extended edge 1308 of the cover 1302. This example increases the fixation of the edge 1308 to the body 106 of the golf clubhead 100. In other examples, the fastener 1306 may be positioned at any other location on the cover 1302 as required or needed. For example, towards the toe side 114, towards the heel side 116, centered on the cover 1302, etc.

[0172] Figure 33 This is a perspective view of the base 102 of a golf club head 100 with another weight assembly 1400. Some parts have been described above, so further description is unnecessary. Similar to... Figures 30 to 32 In the example described, the weight assembly 1400 includes an enlarged cover 1402 that selectively attaches a slidable weight 1404 to one or more portions of the clubhead 100. However, in this example, the cover 1402 has a substantially V-shaped extended edge 1406. Additionally, the cover 1402 is symmetrical in the direction of the toe 114-heel 116. In other examples, the cover 1402 may be asymmetrical in the direction of the toe 114-heel 116, depending on requirements or needs.

[0173] Figure 34 This is a perspective view of the base 102 of a golf club head 100 with another weight assembly 1500. Some parts have been described above, so further description is unnecessary. Similar to... Figures 30 to 33 In the example described, the weight assembly 1500 includes an enlarged cover 1502 that selectively attaches a slidable weight 1504 to one or more portions of the clubhead 100. However, in this example, the cover 1502 is asymmetrical in the toe-side 114 direction. In other examples, the cover 1502 may be asymmetrical in the heel-side 116 direction, as required or necessary.

[0174] Figure 35 This is a perspective view of the base 102 of a golf club head 100 with another weight assembly 1600. Some parts have been described above, so further description is unnecessary. Similar to... Figures 30 to 34In the example described, the weight assembly 1600 includes an enlarged cover 1602 that selectively attaches a slidable weight 1604 to one or more portions of the clubhead 100. However, in this example, the cover 1602 has a substantially C-shaped extended edge 1606. Additionally, the cover 1602 is symmetrical in the direction of the toe 114-heel 116. In other examples, the cover 1602 may be asymmetrical in the direction of the toe 114-heel 116, depending on requirements or needs.

[0175] Figure 36 This is a perspective view of the bottom 102 of a golf club head 100 with another weight component 1700. Figure 37 This is an exploded perspective view of the counterweight assembly 1700. Some parts have been described above and therefore do not need further description. See also... Figure 36 and Figure 37 A recessed channel 1702 is defined within the bottom 102 of the body 106 of the clubhead 100. The channel 1702 has a substantially curved shape in the direction of the toe 114-heel 116, thereby allowing adjustment of the clubhead 100's CG and MOI for right-to-left bias (e.g., the "F" and "D" markings on the cover 1706 of the weight assembly 1700). In this example, the curve of the channel 1702 substantially corresponds to the rear outer periphery of the body 106, where the bottom 102 and crown 118 are joined together, and this rear outer periphery faces the striking face 108. The weight assembly 1700 includes a slidable weight 1704, a cover 1706, and a fastener 1708.

[0176] In this example, the cover 1706 is substantially U-shaped, having a toe end 1710 and an opposing heel end 1712. A fastener 1708 is connected to the cover 1706 by a locking washer 1714 (e.g., a retaining clip), and the fastener 1708 is positioned on the concave side of the cover 1706 at approximately the midpoint between the ends 1710 and 1712. The fastener 1708 is a threaded bolt that threadedly engages with a nut 1716 formed within the bottom 102 of the body 106. As the fastener 1708 rotates, the locking washer 1714 allows the cover 1706 to rotate along the fastener axis 1718 (in... Figure 38(As shown in the diagram) linear movement M (e.g., raising and lowering) relative to the recessed channel 1702. The fastener 1708 is offset from the recessed channel 1702 towards the front of the body 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, allowing the weight 1704 to be positioned at a greater location on the bottom 102. Additionally, by positioning the fastener adjacent to the concave side of the cover 1706, the weight 1704 is positioned closer to the outer periphery of the body 106, thereby increasing the adjustability of the clubhead 100's CG and MOI.

[0177] 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 positioned at the end of the recessed channel 1702 and within the bottom 102 of the body 106. The protrusion 1720 may be substantially cylindrical in shape and increases the engagement of the cover 1706 with the body 106, thereby limiting the movement or noise of the counterweight 1704 when it is secured within the recessed channel 1702 by the cover 1706. The protrusion axis 1724 of the protrusion 1720 (in...) Figure 38 (As shown in the figure) is substantially parallel to the fastener axis 178 to facilitate the movement of the cover 1706 relative to the recessed channel 1702.

[0178] In operation, the counterweight assembly 1700 can be selectively moved between at least three configurations to make the CG and MOI of the clubhead 100 adjustable. More specifically, in a first or locking configuration, the cover 1706 is at least partially disposed within a recessed channel 1702, such that the counterweight 1704 is fixed within the channel 1702 and its movement is restricted. This locking configuration... Figure 36 As shown in the diagram. When the counterweight assembly 1700 is in the locked configuration, the protrusion 1720 is at least partially received within and engages with the chamber 1722. By engaging the cover 1706 to the body 106 at its ends 1710, 1712, the cover 1706 still holds the counterweight 1704 within the channel 1702 when the counterweight 1704 is positioned away from the fastener 1708, and reduces or prevents movement of the counterweight 1704 in the locking configuration. The locking configuration is used when the golf club head 100 is swung.

[0179] Additionally, the weight assembly 1700 can be positioned in at least two other configurations that allow the weight 1704 to selectively slide with the recessed channel 1702 and allow the weight 1704 to be completely removed from the weight assembly 1700 and the clubhead 100. In a second or alternative weight-moving configuration, the cover 1706 is partially raised from the recessed channel 1702, thereby allowing adjustment of the position of the weight 1704. However, the weight 1704 remains within the weight assembly 1700 and cannot be completely removed from the clubhead 100. This configuration... Figure 40 As shown in the diagram and further described below, in the third or counterweight removal configuration, the cover 1706 is positioned such that the counterweight 1704 can be completely removed, for example, so that different counterweights (e.g., of different masses) can be used with the clubhead 100 to adjust the swing weight. This configuration is shown in... Figure 41 As shown in the diagram and further described below. However, in each of the three configurations, the cover 1706 remains attached to the body 106, so that the cover 1706 does not have to be completely removed. However, in some examples, the counterweight assembly 1700 may include a fourth configuration (not shown) in which the cover 1706 may be completely removed from the body 106 as required or needed.

[0180] A partial wall 1726 is provided within the recessed channel 1702. The counterweight 1704 has a corresponding recess 1728 (in...). Figure 38 (as shown in the diagram), allowing the counterweight 1704 to slide along the local wall 1726. When the counterweight assembly 1700 is in the counterweight moving configuration, the local wall 1726 at least partially prevents the counterweight 1704 from being completely removed. In some examples, the counterweight 1704 may include at least one positioning feature 1730 ( Figure 37 The size and shape of feature 1730 are configured such that, when the counterweight assembly 1700 is in the locked configuration, feature 1730 can engage with a plurality of positioning lugs 1732 extending from the cover 1706 (in...). Figure 39 One or more engagements are shown in the diagram. Positioning lug 1732 and feature 1730 help to position the counterweight 1704 at a specific location within the recessed channel 1702. In this example, positioning lug 1732 is substantially truncated conical, and positioning feature 1730 has a corresponding recessed shape. In other examples, lug 1732 and feature 1730 may have any other shape and / or size that enables the cover 1706 and counterweight 1704 to function as described herein.

[0181] Figure 38 It is along Figure 36The cross-sectional view of the weight assembly 1700, taken by lines 38-38 in the figure, is shown. Some components have been described above and therefore need not be described further. As described above, the weight 1704 is secured within the recessed channel 1702 by a cover 1706. Fasteners 1708 position and secure the cover 1706 to the body 106 of the golf club head, thus holding the weight 1704 only indirectly. In some examples, washers (not shown) may be positioned on the fasteners 1708 and between the body 106 and the cover 1706. The recessed channel 1702 is formed in cross-section by a bottom track wall 1734 and side walls 1736 arranged in a generally L-shaped configuration with a corner 1738. In this example, the corner 1738 has an angle less than or equal to 90°. On the other hand, the corner 1738 has an angle less than 90°, such that the side walls 1736 are undercut. Thus, when the counterweight assembly 1700 is in the locked configuration, the cover 1706 weds the counterweight 1704 into the corner 1738 and abuts against the sidewall 1736 to frictionally fix the counterweight 1704 within the recessed channel 1702 and at least partially below the sidewall 1736.

[0182] Partial wall 1726 extends upward on the bottom track wall 1734 adjacent to corner 1738 and has a height H1. Weight 1704 has a corresponding recess 1728 that receives at least a portion of partial wall 1726. When weight assembly 1700 is in locked and sliding configurations, partial wall 1726 at least partially accommodates weight 1704 within weight assembly 1700. Weight 1704 also includes a tail 1740 protruding from recessed channel 1702 and extending below cover 1706. The tail 1740 of weight 1704 provides a structure for the user to grasp and slide weight 1704 as required or needed. The tail 1740 is also visible on the outer surface of the clubhead, making its position easily determined by visual inspection. In this example, tail 1740 at least partially corresponds to the shape of the bottom track wall 1734 of recessed channel 1702. In other examples, the tail 1740 may have any other size and / or shape as required or needed.

[0183] Figure 39 It is the counterweight component 1700 (in Figures 36 to 38 A view of the inner surface 1742 of the cover 1706 (shown in the figure). The cover 1706 is substantially U-shaped, having a recessed side that receives a fastener at an eyelet 1744. The inner surface 1742 has a plurality of locating lugs 1732 near the convex side, these locating lugs being configured to engage with locating features 1730 within the counterweight 1704 (in the figure). Figure 37(as shown in the diagram). When engaged (e.g., in the first locking configuration), the cover 1706 weds the counterweight into the corner of the recessed channel and abuts against the sidewall. However, when the cover 1706 is raised from the recessed channel, the positioning lug 1732 disengages from the counterweight, thereby allowing the counterweight to be moved (e.g., in the counterweight sliding configuration) or to be completely removed (e.g., in the counterweight removal configuration).

[0184] Each end 1710, 1712 of the cover 1706 includes a protrusion 1720 that, in addition to fasteners, secures the cover 1706 to the body of the clubhead. In this example, the protrusion 1720 is connected to the chamber 1722 in all three configurations of the weight assembly (e.g., locking, weight movement, and weight removal). Figure 37 (As shown in the figure) engagement. Furthermore, the protrusion 1720 at least partially defines each of the three configurations. The protrusion 1720 is substantially cylindrical in shape and is configured to extend through the bottom of the body and into the internal cavity of the clubhead via chamber 1722. In this example, the protrusion 1720 includes a plurality of flexible arms 1746 circumferentially spaced to form the substantially cylindrical protrusion 1720. As shown, the protrusion 1720 includes three discrete flexible arms 1746. In other examples, the protrusion 1720 may include any other number of flexible arms 1746 (e.g., 2, 4, 5, etc.) as required or needed.

[0185] Figure 40 It is in the counterweight sliding structure and along Figure 36The image shows a cross-sectional view of the weight assembly 1700 taken along line 40-40. The protrusion 1720 has a distal end 1748 (relative to the inner surface 1742 of the cover 1706) formed as a tapered nose, allowing the cover 1706 to be press-fitted into the body 106 of the golf club head and extending into the internal cavity 122 and through the chamber 1722. For example, a flexible arm 1746 can be radially deflected to extend through the chamber 1722 and snap into place. This connection allows the cover 1706 to be secured to the body 106 and completely removed as required or needed. However, it is not necessary to remove the cover 1706 to adjust the weight 1704. The distal end 1748 includes at least one stop 1750 extending radially outward from the protrusion 1720. In this example, the stop 1750 is formed as part of the tapered nose. The protrusion 1720 also has a proximal end 1752 (relative to the inner surface 1742 of the cover 1706), which is formed as a substantially cylindrical support. When the cover 1706 is in the locked configuration, the proximal end 1752 frictionally engages with the chamber 1722. This engagement helps the cover 1706 secure the counterweight 1704 within the recessed channel 1702 (in addition to fasteners). Additionally, at least one rib 1754 extends radially on the protrusion 1720. The rib 1754 is located between the distal end 1748 and the proximal end 1752, and is offset from the stop 1750 by a distance D1.

[0186] For securing the counterweight assembly 1700 from the cover 1706 and the counterweight 1704 within the recessed channel 1702, a locking mechanism is used (in...) Figure 36 (As shown in the diagram) Move to a counterweight moving structure that allows the counterweight 1704 to slide within the recessed channel 1702 (in Figure 40 (As shown in the diagram), the threaded fastener 1708 is rotated to raise the cover 1706 out of the recessed channel 1702. When the rib 1754 engages with the end wall 1756 of the chamber 1722, further movement of the cover 1706 is restricted and the cover 1706 is raised to a height H2 relative to the body 106 of the clubhead. Thus, the cover 1706 indicates that the counterweight assembly 1700 is in the counterweight moving configuration. To move the counterweight assembly 1700 through the counterweight moving configuration to the counterweight removal position, additional force can be introduced into the counterweight assembly 1700 (e.g., via rotation of the fastener 1708) to overcome the engagement between the rib 1754 and the chamber 1722 until the flexible arm 1746 bends and the cover 1706 can be further raised out of the recessed channel 1702.

[0187] Figure 41 It is in the counterweight removal structure and along Figure 36The cross-sectional view of the counterweight assembly 1700 is taken by line 40-40. Once the engagement of the rib 1754 and the end wall 1756 is forcefully overcome (e.g., by rotating the cover 1706 via the fastener 1708), the counterweight assembly 1700 can be moved from the counterweight movable configuration (in...). Figure 40 (As shown in the diagram) it moves to the counterweight removal configuration. In the counterweight removal configuration, since the cover 1706 is raised even further from the recess 1702, the counterweight 1704 can be completely removed from the recess 1702. When the stop 1750 engages with the end wall 1756 of the chamber 1722, further movement of the cover 1706 is restricted and the cover 1706 is raised to a height H3. The height H3 is greater than that of the previous counterweight sliding configuration (in the diagram). Figure 40 The height H2 is shown in the diagram. Thus, the cover 1706 indicates that the counterweight assembly 1700 is in the counterweight removal configuration, and the counterweight 1704 can be completely removed. In some examples, the counterweight assembly 1700 can move through the counterweight removal configuration, allowing the cover 1706 to be completely removed. If this is the case, additional force is introduced into the counterweight assembly 1700 to overcome the engagement between the stop 1750 and the chamber 1722 until the flexible arm 1746 bends and the cover 1706 can be completely removed. In this example, the stop 1750 is radially larger than the rib 1754, such that the force required to completely remove the cover 1706 is greater than the force required to move between the counterweight moving configuration and the counterweight removal configuration.

[0188] Since rib 1754 at least partially defines the counterweight moving mechanism and stop 1750 at least partially defines the counterweight removing mechanism, the distance D1 between rib 1754 and stop 1750 (in Figure 40 (As shown in the diagram) defines the height at which the covering 1706 rises between two different structures H2 and H3. In one case, the distance D1 can be approximately 5 mm. Alternatively, in one example, the distance D1 can be at least equal to the height H1 of the local wall 1726 (as shown in the diagram). Figure 37 and Figure 38 (as shown in the diagram), such that in the counterweight removal configuration, the counterweight 1704 can be lifted from the local wall 1726 and removed from the counterweight assembly 1700. In other examples, the rib 1754 or the stop 1750 can be completely removed from the cover 1706, such that the cover 1706 can be moved only between the two configurations as required or needed.

[0189] Figure 42This is a perspective view of the bottom 1802 of another golf club head 1800 with another weight assembly 1804, wherein the other weight assembly 1804 is in a locked configuration. The golf club head 1800 is a fairway metal club head having a body 1806 that includes a striking face 1808 having a lower edge 1810 and a upper edge 1812 (in...). Figure 43 (As shown in the diagram), both the lower edge 1810 and the upper edge 1812 extend between the toe portion 1814 and the heel portion 1816. The bottom 1802 extends from the lower edge 1810 on the underside of the clubhead 1800, and the crown 1818 extends from the upper edge 1812 on the top side of the clubhead 1800. The bottom 1802, the striking face 1808, and the crown 1818 are joined together to define the outer surface 1820 of the body 1806, wherein an internal cavity 1822 is formed within the body 1806 (in...). Figure 44 (As shown in the diagram). The neck 1824 is located at the heel 1816 and is configured to attach to the shaft (not shown). The components of the fairway metal clubhead 1800 (e.g., sole, striking face, crown, neck, etc.) function similarly to those described above. Figures 1 to 41 The component functions described in the example of a metal wood-type golf club head. However, the fairway metal-type golf club head 1800 may strike the golf ball directly from the ground, thus requiring or demanding that the outer surface 1820 of the sole 1802 be substantially smooth without any protruding parts. Figure 42 As shown, the clubhead 1800 is a fairway metal clubhead; however, the body 1806 can be formed into any type of clubhead, such as an iron clubhead, a hybrid clubhead, or a metal wood clubhead, depending on requirements or needs (e.g., Figures 1 to 41 (Example shown). Furthermore, the features of the weight assembly 1804 described below may be used, supplementally or alternatively, for any type of clubhead described herein, upon request or need.

[0190] In this example, a recessed channel 1826 is defined within the bottom 1802 of the body 1806 of the clubhead 1800. The channel 1826 extends in the direction of the toe 1814-heel 1816, allowing adjustment of the clubhead's CG and MOI for right-to-left yaw tendencies (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 at least partially disposed within the channel 1826, a cover 1830 at least partially extending over the channel 1826, and a fastener 1832 configured to engage the cover 1830 to the body 1806. The fastener 1832 indirectly holds the weight 1828 within the recessed channel 1826 via the cover 1830, allowing the weight 1828 to be used for adjusting the clubhead's CG and MOI. In this example, the weight assembly 1804 and the recessed channel 1826 are located in the "front portion" of the golf club head 1800. The "front portion" means that the weight 1828 is closer to the striking face 1808 than the rearmost outer periphery of the body 1806, where the bottom 1802 and the crown 1818 are joined together at the furthest point from the striking face 1808.

[0191] like Figure 42 As shown, the counterweight assembly 1804 is in a locked configuration, wherein the cover 1830 is at least partially disposed within the recessed channel 1826 and the counterweight 1828 is fixed within the channel 1826 and its movement is restricted. When the cover 1830 and the counterweight assembly 1804 are in the locked configuration, the counterweight 1828 is completely disposed within the channel 1826, and no part of the counterweight 1828 extends above the outer surface 1820 of the body 1806. Additionally, the cover 1830 has an outer surface 1834, which, when the cover 1830 and the counterweight assembly 1804 are in the locked configuration, is aligned with the outer surface 1820 of the body 1806, and no part of the cover 1830 extends above the outer surface 1820 of the body 1806. Because the counterweight 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 1806, the smoothness of the outer surface 1820 of the clubhead 1800 is maintained, thereby promoting good ground interaction.

[0192] Figure 43This is a perspective view of the bottom 1802 of the golf club head 1800, with the weight assembly 1804 in the unlocked position. Some parts have been described above and therefore need not be described further. By rotating the fastener 1832, the cover 1830 can be at least partially raised from the recessed channel 1826 and into the unlocked position. In the unlocked position, the weight 1828 can selectively slide within the channel 1826 to adjust the CG and MOI as required or needed. In this example, the weight 1828 engages with the cover 1830 such that the weight 1828 moves together with the cover 1830 between the unlocked and locked positions, and when in the unlocked position, the weight 1828 is at least partially raised from the recessed channel 1826. It should be understood that, although Figure 42 and Figure 43 The counterweight assembly 1804 is shown and described in two different configurations (i.e., a locking configuration and an unlocking configuration), but the counterweight assembly 1804 can move between more than two configurations as required or needed. For example, the counterweight assembly 1804 may be referenced above. Figures 36 to 41 The movement is between at least three types of structures described, namely, locking structure, counterweight moving structure, and counterweight removal structure.

[0193] Figure 44 It is along Figure 42 The cross-sectional view of the golf club head 1800 with counterweight assembly 1804, taken from line 44-44. Figure 45 It is along Figure 42 A partial perspective sectional view of the counterweight assembly 1804, taken along line 44-44. Also refer to... Figure 44 and Figure 45 Some components have been described above and therefore need not be described further. Fastener 1832 is a threaded bolt that engages threadedly with nut 1836 formed within the bottom 1802 of body 1806. Fastener 1832 is connected to cover 1830 via locking washer 1838, thereby transferring linear movement (e.g., by rotation of fastener 1832) onto cover 1830, and cover 1830 can be moved in and out of recessed channel 1826 as described herein.

[0194] In this example, channel 1826 is defined by a bottom track 1840 and two opposing sidewalls 1842, 1844. The first sidewall 1842 is adjacent to the striking face 1808, and the second sidewall 1844 is adjacent to the rear of the bottom 1802. Cover 1830 is substantially L-shaped, having a long leg 1846 and a short leg 1848. The short leg 1848 includes a portion connected to a fastener 1832, and both the short leg 1848 and the fastener 1832 are positioned adjacent to the second sidewall 1844. The short leg 1848 also includes a flange 1850. Counterweight 1828 includes a recess 1852, which is sized and shaped to receive the flange 1850. The counterweight 1828 slidably engages with cover 1830 and the flange 1850, which is at least partially received within the recess 1852. This engagement between the cover 1830 and the counterweight 1828 allows the counterweight 1828 to be engaged with the cover 1830 in a locking configuration (in Figure 42 (shown in) and unlock location (in) Figure 43 The weight 1828 moves between (e.g., rises and falls back into channel 1826) and, when the weight assembly is in the unlocked configuration, also slides relative to the cover 1830 in the toe-heel direction. When the cover 1830 is in the locked configuration, the long leg 1846 also substantially covers the weight 1828, thereby increasing the smoothness of the outer surface 1820 of the clubhead 1800.

[0195] The bottom track 1840 includes a plurality of bosses 1854 extending into the channel 1826. In this example, there are three bosses 1854, each corresponding to a rightward tilt position, a leftward tilt position, and a center-neutral position of the counterweight 1828, respectively. Additionally, the first sidewall 1842 includes a plurality of recesses 1856 corresponding to the bosses 1854. The counterweight 1828 includes a hollow portion 1858 sized and shaped to receive the bosses 1854 and a position indicator 1860 sized and shaped to be received in the recesses 1856. In operation, when the counterweight assembly 1804 is in the unlocked configuration (in... Figure 43 When (as shown in the diagram), the counterweight 1828 is raised above the boss 1854, allowing it to selectively move between the boss 1854 and the recess 1856 of the channel 1826. Once the counterweight 1828 is positioned, the counterweight assembly 1804 can be moved to the locking configuration (in the diagram). Figure 42 (as shown in the figure), and the selected boss 1854 is at least partially received in the hollow portion 1858 of the counterweight 1828, and the position indicator 1860 is at least partially received in the selected recess 1856.

[0196] 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 clubhead 1800. This allows the user to easily visually verify the position of the weight 1828 on the clubhead 1800. It should be understood that although three bosses 1854 and recesses 1856 are shown and described, any other number of bosses and recesses locating features can be provided to define the position of the weight 1828 within the recessed channel 1826. For example, five sets of bosses and recesses can be provided. Additionally, the position indicator 1860 has a notch such that when the cover 1830 is raised to the unlocked configuration (in... Figure 43 When (as shown in the diagram), the position indicator 1860 can slide completely out of the recess 1856 and move above the first sidewall 1842 to adjust the position of the counterweight 1828.

[0197] The cover 1830 may also include one or more protrusions 1862, the protrusions being sized and shaped to be received in corresponding chambers 1864 of the recessed channel 1826. The protrusions 1862 are configured to increase the engagement of the cover 1830 with the body 1806, thereby limiting movement or noise of the counterweight 1828 when it is secured within the recessed channel 1826 by the cover 1830. In some examples, the protrusions 1862 may resemble those referenced above. Figures 36 to 41 The protrusion includes one or more flexible arms, a conical nose, a stop, and at least one rib.

[0198] Figure 46 This is a bottom view of the golf club head 1800 with another weight component 1900. Figure 47 It is along Figure 46 A perspective sectional view of the golf club head 1800 with weight assembly 1900, taken from line 47-47. Also refer to... Figure 46 and Figure 47 Some components have already been described above, so further description is unnecessary. Similar to... Figures 42 to 45 In the example described, the counterweight assembly 1900 includes a cover 1902 that selectively secures a slidable counterweight 1904 within a recessed channel 1906. The counterweight 1904 engages with the cover 1902 such that the counterweight 1904 moves together 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 counterweight 1904 within the channel 1906. The cover 1902 may be formed of at least partially transparent material, making the position of the counterweight 1904 visible to the user.

[0199] Figure 48This is a perspective view of another golf club head, 2000. Figure 49 This is a bottom view of the clubhead 2000 with another weight assembly 2002. (See image below.) Figure 48 and Figure 49 As shown, the golf club head 2000 is an iron-type golf club head, which 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. The toe portion 2008 and the heel portion 2010 are also at least partially connected to the topline portion 2006. The heel portion 2010 is connected to a neck 2012, which is configured to attach to the shaft (not shown). The striking face 2004 is also connected to a sole 2014. The golf club head 2000 also includes a back portion 2016 that is at least partially attached to the sole 2014, the topline portion 2006, the toe portion 2008, and the heel portion 2010.

[0200] Components of the golf club head 2000, such as the face 2004, topline portion 2006, toe portion 2008, heel portion 2010, and backpiece portion 2016, can be made of metal, such as steel. The components of the golf club head 2000 can be formed by a casting process. Some components can be cast as single pieces, and the remaining components can be attached after the casting process. For example, the sole 2014, topline portion 2006, toe portion 2008, heel portion 2010, and backpiece portion 2016 can be cast as single pieces. The face 2004 can then be attached to this single piece by welding or any other suitable process used to attach two club head components to each other. In such an example, the face 2004 can be an insert.

[0201] In operation, when the clubhead 2000 is positioned in the ready-to-hit position, the base 2014 typically provides the lower surface of the clubhead 2000. The clubhead 2000 defines the center of gravity (CG) and moment of inertia (MOI) that affect the flight characteristics of the golf ball when struck with the striking face 2004. A weight assembly 2002 is attached to the clubhead 2000, allowing selective adjustment of the CG and / or MOI of the clubhead 2000 as required or needed. In this example, the weight assembly 2002 includes a movable weight 2018, a cover 2020 configured to hold the weight 2018 in place, and fasteners 2022 for attaching the weight assembly 2002 to one or more portions of the clubhead 2000. An elongated recessed channel 2024 is formed in the bottom 2014 of the clubhead 2000, and its size and shape are configured to receive at least a portion of the weight 2018. Similar to the example above, a fastener 2022 is adapted to hold the weight 2018 only indirectly within the channel 2024 via a cover 2020. Additionally, the cover 2020 can be loosened or completely removed via the fastener 2022 to allow the weight 2018 to slide within the channel 2024, and to selectively adjust the CG and MOI as required or needed.

[0202] In this example, fastener 2022 is positioned at the toe end of counterweight assembly 2002 and aligned with channel 2024. In other examples, fastener 2022 may be positioned at the heel end of counterweight assembly 2002 as required or necessary.

[0203] Figure 50 This is a cross-sectional view of another counterweight component 2100. Figure 51 This is a schematic diagram of the counterweight component 2100. (Refer to...) Figure 50 and Figure 51 A recessed channel 2102 is defined within the body 2104 of the clubhead (e.g., clubheads 100, 1800, and / or 2000 described above). A weight assembly 2100 includes a slidable weight 2106 and a cover 2108. The weight 2106 is held within the channel 2102 using fasteners (not shown). In this example, the cover 2108 includes an inner surface 2110 that engages with 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 frictionally engage with the weight 2106 when the cover 2108 is in a locked configuration. By frictionally engaging the counterweight 2106 with the cover 2108, the counterweight 2106 is secured within the channel 2102, while simultaneously reducing or preventing noise from the counterweight 2106 within it. In this example, the friction material can be a soft metal, such as brass.

[0204] The friction material 2112 may include a plurality of grooves 2114 on its mating surface with the counterweight 2106. In this example, the grooves 2114 may be triangular in shape, but other shapes are also possible. When a clamping load 2116 is applied to the friction material 2112, the material yields to hold the counterweight 2106 in place (e.g., ...). Figure 51 (As shown), and matches a specific surface combination with channel 2102, counterweight 2106, and cover 2108. Once deformation occurs and contact stress is generated, the friction material 2112 will not deform further. By frictionally engaging the counterweight 2106 with the cover 2108, the counterweight 2106 can be positioned anywhere within the channel 2102 without the need for indexing features. Furthermore, by eliminating the indexing features, the counterweight 2106 and channel 2102 have substantially flatter surfaces, which improves manufacturing efficiency.

[0205] In this example, the cover 2108 may also include one or more projecting notches 2118 that engage with corresponding cavities 2120 within the body 2104. The notches 2118 may be substantially circular in shape. The notches 2118 and cavities 2120 are referenced below. Figure 52 and Figure 53 Further description. It should be understood that although friction material 2112 is shown attached to cover 2108, friction material 2112 may be additionally or alternatively attached to counterweight 2106.

[0206] Figure 52 It is the counterweight component 2100 (in Figure 50 A top view of the cover 2108 shown in the figure. Figure 53 This is a side view of cover 2108. Also refer to... Figure 52 and Figure 53 Some components have already been described above and therefore need not be described further. The cover 2108 includes a plurality of protruding notches 2118 that engage with corresponding cavities 2120 within the body 2104. By engaging the cover 2108 at multiple locations, bending of the cover 2108 into misalignment with the outer surface of the body 2104 is limited or prevented when the counterweight is fixed. Figure 53 As shown, the side cavity can be conical to receive the cover 1206 that slides at a certain angle.

[0207] Figure 54This is a bottom view of another golf club head 2200 with another weight assembly 2202, wherein the other weight assembly 2202 is in a locked configuration. The golf club head 2200 includes a body 2204 having a base 2206, and the weight assembly 2202 is disposed on the base 2206. The body 2204 also includes a striking face and a crown (neither shown), such that the body 2204 has an outer surface 2208. In one aspect, the golf club head 2200 can be a fairway metal type golf club head; however, the body 2204 can be formed into any type of club head, such as an iron type club head, a hybrid club head, or a driver type club head, or other metal wood type club heads (e.g., Figures 1 to 53 (One or more examples shown). Additionally, the functions of the components of the clubhead 2200 (e.g., sole, striking face, crown, neck, etc.) are the same as those described above. Figures 1 to 53 The components described herein function similarly. Furthermore, the features of the counterweight assembly 2202 described below may be used, supplementally or alternatively, for any type of clubhead described herein, as required or necessary.

[0208] In this example, a recessed channel 2210 is defined within the bottom 2206 of the body 2204 of the clubhead 2200. The recessed channel 2210 extends in a toe-heel direction, allowing adjustment of the clubhead's CG and MOI (e.g., for right-to-left yaw). The weight assembly 2202 includes a slidable weight 2212 at least partially disposed within the channel 2210, a cover 2214 at least partially extending over the channel 2210, and a fastener 2216 configured to engage the cover 2214 to the body 2204. The fastener 2216 indirectly holds the weight 2212 within the recessed channel 2210 via the cover 2214, allowing the weight 2212 to be used for adjusting the clubhead's CG and MOI.

[0209] like Figure 54 As shown, the counterweight assembly 2202 is in a locked configuration, wherein the cover 2214 is at least partially disposed within the recessed channel 2210, and the counterweight 2212 is secured within the channel 2210 to restrict movement. When the cover 2214 and the counterweight assembly 2202 are in the locked configuration, at least a portion of the counterweight 2212 is visible between the body 2204 and the cover 2214. This configuration allows the user to more easily determine the position of the counterweight 2212 within the recessed channel 2210. The counterweight assembly 2202 can also be moved to the unlocked configuration described herein. For example, by rotating the fastener 2216, the cover 2214 can be at least partially lifted out of the recessed channel 2210, allowing the counterweight 2212 to be repositioned.

[0210] In this example, the counterweight 2212 overlaps and engages with the cover 2214, allowing both to move together between the locking and unlocking configurations. Furthermore, this engagement reduces or prevents twisting and tilting of the counterweight 2212 relative to the cover 2214 as the counterweight 2212 is raised and lowered relative to the recessed channel 2210. This prevents the counterweight 2212 from binding into the recessed channel 2210 during counterweight adjustment, thereby improving the performance of the counterweight assembly 2202.

[0211] Figure 55 It is along Figure 54 The perspective sectional view of the counterweight component 2202, taken from line 54-54. Figure 56 It is along Figure 54 The cross-sectional view of the covering 2214, taken by line 54-54. Also refer to... Figure 55 and Figure 56 The cover 2214 has a frame 2218 configured to slidably engage with the weight 2212. In this example, the frame 2218 is open in a direction facing the striking face of the clubhead and away from the fastener 2216. Additionally, the frame 2218 extends within the cover 2214 in a toe-heel direction. However, it should be understood that the frame 2218 may be defined within the cover 2214 in any other orientation and / or direction required to achieve the adjustable weight function described herein. When the cover 2214 is in the unlocked position, the weight 2212 is raised relative to the clubhead, allowing the weight 2212 to selectively slide within the frame 2218 and the recessed channel 2210 (in... Figure 54 (As shown in the diagram). Conversely, when the cover 2214 is in the locked position, the counterweight 2212 is at least partially disposed within and secured therein in the recessed channel 2210 and the shelf 2218 to restrict or prevent movement of the counterweight 2212. In this example, the shelf 2218 provides overlap between the cover 2214 and the counterweight 2212, thereby reducing the binding of the counterweight 2212 in the recessed channel.

[0212] The frame 2218 includes an outer wall 2220 and an opposing inner wall 2222. As described herein, the outer and inner walls of the frame 2218 are relative to the internal cavity of the body 2204 of the clubhead (in... Figure 54(As shown in the diagram). Thus, the outer wall 2220 is positioned close to the outer surface 2224 of the cover 2214. The counterweight 2212 is configured to be at least partially slidably received between the outer wall 2220 and the inner wall 2222 of the shelf 2218 and abuts against the inner wall 2226 of the shelf 2218. The three walls of the shelf 2218 retain the counterweight 2212 within the cover 2214, thereby limiting or preventing the position of the counterweight 2212 relative to the cover 2214 when moving between the locking and unlocking configurations. This configuration restricts the counterweight 2212 from being bound within the counterweight assembly 2202, thus improving the performance of the counterweight assembly 2202.

[0213] In this example, the position of the counterweight 2212 within the cover 2214 can be measured by an angle 2228, which is defined as the angular position of the counterweight 2212 relative to the outer wall 2220 of the shelf 2218. On one hand, the angle 2228 is substantially the same in both the unlocking and locking configurations. On the other hand, in both the unlocking and locking configurations, the angle 2228 is substantially parallel to the outer wall 2220 of the shelf 2218. The counterweight 2212 has an outer surface 2230 that, when received within the shelf 2218, is positioned directly against the outer wall 2220, the inner wall 2222, and the inner wall 2226 of the cover 2214. Thus, the outer surface 2230 of the counterweight 2212 maintains its position of directly abutting against the wall of the shelf 2218 in both the unlocking and locking configurations.

[0214] The counterweight 2212 includes a position indicator 2232 that extends at least partially from the holder 2218. When the counterweight assembly 2202 is in the unlocked configuration, the position indicator 2232 can be used to selectively slide the counterweight 2212. When in the locked configuration, the position indicator 2232 is visible between the cover 2214 and the body of the clubhead, allowing the user to easily determine the counterweight characteristics of the clubhead. Additionally, the position indicator 2232 may be located in a recessed area within a channel (e.g., Figure 45 The counterweight 2212 also includes a hollow portion 2234, the size and shape of which are configured to receive a boss (e.g., in the recessed channel) within the recessed seat 1856. Figure 45 (See boss 1854). In this example, the hollow portion 2234 is disposed adjacent to the inner wall 2222 of the shelf 2218.

[0215] The cover 2214 may also include one or more protrusions 2236, the protrusions 2236 being sized and shaped to be received within a corresponding cavity (not shown) of the recessed channel. The protrusions 2236 are configured to increase the engagement of the cover 2214 with the golf club head body, thereby limiting movement or noise of the weight 2212 when it is secured within the recessed channel by the cover 2214. The protrusions 2236 may also be used to limit movement from the body 2204 (in...) Figure 54 As shown in the diagram, the cover 2214 is removed to form a soft stop before it is fully released and removed from the body. In some examples, the protrusion 2236 may resemble the one referenced above. Figures 36 to 41 The protrusion described includes one or more flexible arms, a conical nose, a stop, and at least one rib.

[0216] In this example, the width 2238 of the outer wall 2220 relative to the width 2240 of the inner wall 2222 is greater than that of the inner wall 2222. This configuration allows the counterweight 2212 to be held within the shelf 2218 without tilting or being secured within the counterweight assembly 2202. Additionally, the counterweight 2212 includes a hollow portion 2234 and a position indicator 2232, which extends from the shelf 2218 and performs the function of the counterweight assembly 2202 described herein. For example, the inner wall 2226 allows the hollow portion 2234 of the counterweight 2212 to engage with a corresponding structure recessed into a channel. On one hand, the width of the outer wall is approximately 2 to 4 times the width of the inner wall. On the other hand, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is greater than or equal to 2:1. On another front, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is greater than or equal to 3:1. On yet another front, the ratio of the width 2238 of the outer wall 2220 to the width 2240 of the inner wall 2222 is between approximately 2:1 and 4:1. It should be understood that other ratios are also considered herein, and may not be explicitly listed above.

[0217] Figure 57 This is a perspective view of counterweight 2212. Figure 58 This is a schematic top-down plan view of counterweight 2212. See also... Figure 57 and 58 as well as Figure 54When the weight assembly 2202 is in the locked configuration, at least a portion of the weight 2212 is exposed and visible between the outer surface of the cover 2214 and the outer surface 2208 of the body 2204. That is, a gap is at least partially formed between a portion of the cover 2214 and the body 2204, and the weight 2212 at least partially fills this gap. For example, a position indicator 2232 may be exposed and visible on the golf club head 2200. This configuration makes it easy to determine the position of the weight 2212. However, the weight 2212 is not fully exposed and visible. By reducing the portion of the weight 2212 exposed on the golf club head 2200, the smoothness between the outer surface 1820 of the club head 2200 and the cover 2214 is increased. Thus, the golf club head 2200 has increased performance (e.g., direct ball-hitting performance, aerodynamic performance, etc.) while also including the weight adjustment functionality described herein via the weight assembly 2202.

[0218] In this example, in the locking configuration, approximately 0% to 30% of the counterweight 2222 is exposed and visible between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In one aspect, in the locking configuration, approximately 10% to 20% of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In yet another aspect, approximately 16% of the counterweight 2212 is exposed. It should be understood that other percentage values ​​are also considered herein and are not explicitly listed above. Although not shown in the figures, the counterweight 2212 may be completely invisible without departing from the scope and content of the invention.

[0219] Reference Figure 57 The visible and exposed percentage (e.g., portion 2242) of the counterweight 2212 can be based on the outer surface region 2230 of the counterweight 2212. As used herein, the outer surface 2230 of the counterweight 2212 includes Figure 57 The counterweight shape shown extends beyond one side and the entire outer perimeter. For example, in one aspect, in the locking configuration, approximately 0% to 30% of the outer surface 2230 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In another aspect, in the locking configuration, approximately 10% to 20% of the outer surface 2230 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In yet another aspect, approximately 16% of the outer surface 2230 of the counterweight 2212 is exposed. It should be understood that other percentage values ​​are also considered herein and are not explicitly listed above.

[0220] Reference Figure 58The percentage of the visible and exposed portion of the counterweight 2212 (e.g., portion 2244) can be based on the planar surface region 2246 of the counterweight 2212. As used herein, the planar surface region 2246 is a surface region (e.g., the top planar region) existing only on one protruding side of the counterweight shape. Although in Figure 58 The top planar region is shown, but other counterweight sides (e.g., right planar region, left planar region, etc.) are also considered herein. For example, in one aspect, in the locking configuration, approximately 0% to 30% of the planar surface region 2246 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In another aspect, in the locking configuration, approximately 10% to 20% of the planar surface region 2246 of the counterweight 2212 is exposed between the outer surface 2208 of the body 2204 and the outer surface of the cover 2214. In yet another aspect, approximately 16% of the planar surface region 2246 of the counterweight 2212 is exposed. It should be understood that other percentage values ​​are also considered herein and are not explicitly listed above.

[0221] Figure 59 This is a schematic perspective view of an exemplary test machine 2300 having another counterweight component 2302. Figure 60 It is along Figure 59 The cross-sectional view of the counterweight component 2302 taken from line 60-60 in the figure. Figure 61 It is along Figure 59 Another sectional view of the counterweight assembly 2302, taken from line 61-61. Also refer to... Figures 59 to 61 Test machine 2300 represents the golf club head described herein and can be used to test and develop the features of weight assembly 2302 as required or needed. The club head represented by test machine 2300 can be any type of club head described herein as required or needed, such as, but not limited to, metal wood golf club heads, fairway metal golf club heads, iron golf club heads, or hybrid golf club heads. In one aspect, the club head represented by test machine 2300 is a metal wood golf club head having a striking face, a base extending from the lower edge of the striking face, and a crown extending from the upper edge of the striking face (all three components are not shown in the image). Figures 59 to 60 (As shown in the diagram). On one hand, the transition area where the sole and crown connect opposite the striking face is called the skirt of the clubhead, and the weight assembly 2302 is at least partially disposed on the skirt. Therefore, the weight assembly 2302 is disposed at the rear periphery of the clubhead and near the location where the sole and crown connect. On one hand, the weight assembly 2302 is substantially disposed at the rear of the clubhead opposite the striking face. An example of a weight assembly disposed on the skirt of a golf clubhead is shown in... Figure 8The image is shown and described above. In this example, the test machine 2300 includes a body 2304 having an outer surface 2306 representing the body of a clubhead. Additionally, a bracket 2307 is attached to the body 2304 for testing and development, and the bracket 2307 does not represent the clubhead. In one aspect, the bracket 2307 is substantially triangular in shape.

[0222] In this example, a recessed channel 2308 is defined in the outer surface 2306 of the body 2304. The channel 2308 extends along a curve in a generally toe-heel direction, allowing adjustment of the clubhead's CG and MOI via the weight assembly 2302. The weight assembly 2302 includes a weight 2310 at least partially disposed within the channel 2308 and configured to slide therein, a cover 2312 extending at least partially above the channel 2308, and a fastener 2314 configured to engage the cover 2312 to the body 2304. The fastener 2314 is configured to indirectly hold the weight 2310 in the recessed channel 2308 via the cover 2312, and to allow the weight 2310 to be used for adjusting the clubhead's CG and MOI.

[0223] Similar to the example described above, the counterweight component 2302 is configured to at least lock in its configuration ( Figure 59 and Figure 61 (as shown) and unlocking construction ( Figure 60 The cover 2312 is at least partially disposed within the recessed channel 2308, and the counterweight 2310 is fixed within the channel 2308 in a movement-restricted manner. In the unlocking configuration, the fastener 2314 allows the cover 2312 to move along the fastener axis, thereby allowing the counterweight 2310 to slide relative to the cover 2312 and the body 2304. On one hand, from the locking configuration, the fastener 2314 can be rotated approximately 2 to 3 turns to release the cover 2312 from the locking configuration and allow the counterweight 2310 to slide at least partially within the recessed channel 2308. On the other hand, the fastener 2314 can be rotated approximately 2.5 turns to allow the counterweight 2310 to slide within the counterweight assembly 2302.

[0224] Cover 2312 has a first end 2316 and an opposing second end 2318. Fastener 2314 is engaged with the first end 2316 of cover 2312 (e.g., by a locking washer) and serves to attach cover 2312 to body 2304. The second end 2318 of cover 2312 includes a protrusion 2320. The protrusion 2320 of the second end 2318 is configured to engage a corresponding cavity 2322 defined at the end of recessed channel 2308. In a locking configuration, fastener 2314 secures the first end 2316 of cover 2312 to body 2304, while the protrusion 2320 of the second end 2318 engages with the cavity 2322 of channel 2308, such that the position of counterweight 2310 within recessed channel 2308 is maintained between the first end 2316 and the second end 2318 of cover 2312. As the counterweight assembly 2302 moves toward the unlocking configuration, the fastener 2314 moves the cover 2312 along the fastener axis and raises the cover 2312 at least partially out of the recessed channel 2308. This configuration allows the counterweight 2310 to slide and reposition on the body 2304 of the golf club head. In this example, the protrusion 2320 extends in a direction substantially parallel to the fastener axis, allowing the cover 2312 to rise uniformly from the recessed channel 2308. On one hand, the chamber 2322 is formed as an undercut in the sidewall of the recessed channel 2308, and this undercut engages with the protrusion 2320 of the cover 2312. The fastener 2314 is located at the opposite end of the undercut.

[0225] To aid in positioning the counterweight 2310 at a pre-selected 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 counterweight 2310 includes a corresponding hollow portion 2326, the shape and size of which are configured to receive at least a portion of the positioning lug 2324. Figure 60 As shown, the cover 2312 has three spaced-apart positioning lugs 2324, such that the hollow portion 2326 can selectively engage the lugs 2324 at three discrete locations within the recessed channel 2308. In one aspect, the positioning lugs 2324 can be asymmetrical; for example, one side of the lug 2324 can have a steeper slope than the opposite side with a smaller slope. Furthermore, in this example, the counterweight 2310 has a first inclined surface 2332 at one end and a second inclined surface 2334 at the opposite end near the hollow portion 2326. The first inclined surface 2332 and the second inclined surface 2334 are different and configured to engage with one of the steeper and thinner slopes of the positioning lugs 2324. This configuration allows the counterweight 2310 to be positioned between and selectively engaged with the two positioning lugs 2324. Therefore, as... Figure 60As shown, the weight 2310 can engage with the cover 2312 at two additional discrete locations within the recessed channel 2308 and between the paired positioning lugs 2324. When the positioning lugs(s) engage with the weight 2310, the weight 2310 is held more tightly within the cover 2312 to reduce or prevent the weight 2310 from rattling and moving further in the locking configuration. Additionally, one or more positioning lugs 2324 can define the position of the weight 2310 on the golf club head. In other respects, the cover 2312 may have five spaced-apart positioning lugs 2324. Other numbers of positioning lugs 2324 are also contemplated herein. It should also be understood that in other examples, positioning lugs 2324 may be provided for each discrete location of the weight 2310 as required or needed.

[0226] In this example, the counterweight 2310 is slidably engaged with the body 2304 within the recessed channel 2308. The body 2304 includes a partial wall 2328 disposed within the recessed channel 2308. The partial wall 2328 extends from the bottom of the recessed channel 2308, and the counterweight 2310 includes a recess 2330 shaped and sized to receive at least a portion of the partial wall 2328. By slidably engaging the partial wall 2328 and the recess 2330 of the counterweight 2310, the counterweight 2310 does not move with the cover 2312 as the cover moves toward the unlocking configuration. This retention of the counterweight 2310 within the recessed channel 2308 allows the positioning lug 2324 of the cover 2312 to disengage from the counterweight 2310 and allows the counterweight 2310 to slide and change position. In addition, when the cover 2312 is in the unlocked configuration, the orientation of the counterweight 2310 in the recessed channel 2308 can be maintained by the local wall 2328, so that the counterweight 2310 can slide to different positions more easily.

[0227] Figure 62 This is a schematic perspective view of another test machine 2400 with another counterweight component 2402. Figures 63A to 63E The counterweight 2410 is in various different positions, along Figure 62 The cross-sectional view of the counterweight component 2402 taken by line 63-63 in the figure. Figure 64 It is along Figure 62 Another sectional view of the counterweight assembly 2402, taken from line 64-64. Also refer to... Figures 62 to 64 And similar to the above Figures 59 to 61In the example described herein, test machine 2400 represents a clubhead, which can be any type of clubhead described herein as required or necessary. In one aspect, a weight assembly 2402 is disposed on the skirt of the clubhead and at the rear periphery where the bottom and crown are joined together. Test machine 2400 includes a body 2404 representing the clubhead and a bracket 2407. The body 2404 has an outer surface 2406. A recessed channel 2408 is defined in the outer surface 2406 of the body 2404. The weight assembly 2402 includes a weight 2410 at least partially disposed within the channel 2408 and configured to slide therein, a cover 2412 extending at least partially above the channel 2408, and a fastener 2414 configured to engage the cover 2412 to the body 2404. The cover 2412 has a first end 2416 and an opposing second end 2418. Fastener 2414 is engaged with a first end 2416 of cover 2412 (e.g., by a locking washer) and serves to attach cover 2412 to body 2404. A second end 2418 of cover 2412 includes a protrusion 2420. The protrusion 2420 of the second end 2418 is configured to engage with a corresponding cavity 2422 defined at the end of recessed channel 2408 and secure the second end 2418 to body 2404.

[0228] In this example, to aid in positioning the counterweight 2410 at a pre-selected location within the recessed channel 2408, the body 2404 includes at least one positioning lug 2424 disposed within the recessed channel 2408. On one hand, the positioning lug 2424 extends from the rear wall of the recessed channel 2408 relative to the outer surface 2406. On the other hand, the positioning lug 2424 is substantially symmetrical, having two sides at similar angles. The counterweight 2410 includes a corresponding hollow portion 2426, the shape and size of which are configured to receive at least a portion of the positioning lug 2424. Furthermore, in this example, the counterweight 2410 has an inclined surface 2432 at each end near the side of the hollow portion 2426. The inclined surfaces 2432 are similar to each other and are configured to engage with the inclined sides of the positioning lug 2424. Figures 63A to 63EAs shown, the cover 2412 has three spaced-apart positioning lugs 2424, allowing the counterweight 2410 to be selectively positioned at five discrete locations within the recessed channel 2408. Other numbers of positioning lugs 2424 are also envisioned. The positioning lugs 2424 are unevenly spaced in the heel-toe direction of the clubhead and have two distinct spacing distances. In this example, the positioning lugs 2424 closer to the fastener 2414 are further apart from the positioning lugs 2424 closer to the protrusion 2420 and the middle positioning lug 2424 than the positioning lugs 2424 closer to the protrusion 2420. On one hand, the spacing between the fastener positioning lug 2424 and the middle positioning lug 2424 is approximately twice the spacing between the protrusion positioning lug 2424 and the middle positioning lug 2424. Additionally, in some examples, the positioning lugs 2424 may be generally tapered.

[0229] from Figure 63A Initially, the counterweight 2410 is positioned near the fastener 2414, and the hollow portion 2426 engages with the locating lug 2424 near the fastener 2414. Therefore, a portion of the counterweight 2410 is positioned on both sides of the locating lug 2424. The counterweight assembly 2402 is in a locking configuration, fixing the position of the counterweight 2410 relative to the body 2404. In some aspects, the distal portion of the counterweight 2410 can be positioned directly against a portion of an end wall of the recessed channel 2408 and / or the portion of the cover 2412 that engages with the fastener 2414. Next, it moves... Figure 63B The counterweight assembly 2402 can be moved to an unlocking configuration (e.g., lifting the cover 2412 at least partially from the recessed channel 2408 to allow the counterweight 2410 to slide) to reposition the counterweight 2410 and adjust the clubhead's CG and / or MOI. Once the counterweight 2410 is repositioned, the counterweight assembly 2402 can be moved to a locking configuration (as shown) to secure the counterweight 2410 in place. In this position, the counterweight 2410 is positioned between two positioning lugs 2424 such that the hollow portion 2426 does not have any positioning lugs 2424 received therein. Instead, the inclined surface 2432 engages with the corresponding positioning lug 2424.

[0230] exist Figure 63C In the middle, the hollow portion 2426 of the counterweight 2410 engages with the central positioning lug 2424. At this location, an inclined surface 2432 also engages with the positioning lug 2424 near the protrusion 2420. Figure 63D In the middle, the hollow portion 2426 of the counterweight 2410 engages with the positioning lug 2424 near the protrusion 2420. At this location, an inclined surface 2432 engages with the central positioning lug 2424. Finally, in Figure 63EIn this configuration, the weight 2410 is positioned near the protrusion 2420 and between the positioning lug 2424 and the end wall of the recessed channel 2408. The hollow portion 2426 is not received by the positioning lug 2424, and an inclined surface 2432 engages with the positioning lug 2424 near the protrusion 2420. In this example, the distal portion of the weight 2410 can be positioned directly against a portion of one end wall of the recessed channel 2408 and / or the portion of the cover 2412 near the protrusion 2420. When the positioning lug(s) engage with the weight 2410, the weight 2410 is held more tightly within the recessed channel 2408 to reduce or prevent clicking and further movement of the weight 2410 in the locking configuration. Additionally, one or more positioning lugs 2424 can define the position of the weight 2410 on the golf club head. In this example, by shifting the locating lug 2424 near the protrusion 2420 inward, the counterweight 2410 can slide more easily between all positions without being locked. It should be understood that the spacing of the locating lugs 2424 can be configured in any other way as required or needed. For example, the recessed channel 2408 can have five spaced-apart locating lugs 2424, such that in each position, the hollow portion 2426 of the counterweight 2410 engages with a locating lug 2424. In other examples, three similarly spaced locating lugs 2424 can be used.

[0231] Additionally, the counterweight 2410 is slidably engaged with the cover 2412. The cover 2412 includes a flange 2428 extending from the interior of the cover 2412, and the counterweight 2410 includes a recess 2430 shaped and sized to receive at least a portion of the flange 2428. By slidably engaging the flange 2428 and the recess 2430 of the counterweight 2410, the counterweight 2410 is configured to move with the cover 2412 as the cover 2412 moves toward the unlocking configuration. This movement of the counterweight 2410 allows it to disengage from the positioning lug 2424 and allows it to slide and change position.

[0232] Figure 65 This is a partial perspective view of an exemplary recessed channel 2500 within the body 2502 of the testing machine. Figure 66 This is another partial perspective view of the recessed channel 2500. Also refer to... Figure 65 and Figure 66The body 2502 is schematically shown, and the test machine represents a clubhead, which can be any type of clubhead described herein as required or necessary. A recessed channel 2500 is configured to receive a slidable weight 2504, and a cover (not shown) is configured to selectively hold the weight 2504 in different positions. The cover is coupled to the body 2502 by a fastener (not shown) defining a fastener axis. The recessed channel 2500 includes a chamber 2506, which is sized and shaped to receive a corresponding protrusion (not shown) of the cover. The chamber 2506 is defined at the end of the recessed channel 2500 opposite the fastener position, such that both ends of the cover engage with the body 2502 and increase the holding force on the weight 2504.

[0233] In this example, the recessed channel 2500 includes a protrusion 2508 near the chamber 2506. The protrusion 2508 extends into the recessed channel 2500 and is configured to engage with a cover at a corresponding conduit (not shown). Therefore, as the cover moves toward an unlocking configuration that allows the counterweight 2504 to slide within the recessed channel 2500, the end of the cover opposite the fastener remains at least partially engaged with the body 2502 to reduce or prevent loosening of the end of the cover relative to the body 2502. The protrusion 2508 extends in a direction substantially parallel to the fastener axis to achieve the movement of the cover as described herein. The protrusion 2508 can be as follows: Figure 65 As shown, it is positioned at the top wall of the recessed channel 2500, as... Figure 66 The location shown is at the bottom wall of the recessed channel 2500 or both.

[0234] Figure 67 This is a schematic perspective view of another test machine 2600 with another counterweight assembly 2602. Figure 68 It is along Figure 67 The cross-sectional view of the counterweight component 2602 in the first configuration is taken by line 67-67. Figure 69 It is along Figure 67 The cross-sectional view of the counterweight component 2602 in the second configuration, taken by line 67-67. Also refer to... Figures 67 to 69 And similar to the above Figures 59 to 64In the example described herein, the test machine 2600 represents a clubhead, which can be any type of clubhead described herein as required or necessary. In one aspect, a weight assembly 2602 is disposed on the skirt of the clubhead and at the rear periphery where the bottom and crown are joined together. The test machine 2600 includes a body 2604 representing the clubhead and a bracket 2607, the body 2604 having an outer surface 2606. A recessed channel 2608 is defined in the outer surface 2606 of the body 2604. However, in this example, the weight assembly 2602 includes a cover 2610 configured to selectively orient and attach to the body 2604 within the recessed channel 2608 to at least partially define the weight position of the clubhead and adjust the clubhead's CG and MOI.

[0235] In this example, the counterweight assembly 2602 includes a cover 2610 removably coupled to the body 2604 and at least partially within a recessed channel 2608. The cover 2610 has a first end 2612 and an opposing second end 2614. A fastener 2616 (e.g., by a locking washer) is mounted on the first end 2612 of the cover 2610, the fastener 2616 being configured to engage with the body 2604. Additionally, a first counterweight 2618 is provided at the first end 2612 of the cover 2610. In this example, the first counterweight 2618 itself defines the first end 2612 of the cover 2610 and is removable from the second end 2614 of the cover 2610, such that counterweights 2618 of different masses are interchangeable and the cover 2610 can be formed as required or needed. The second end 2614 of the cover 2610 includes a protrusion 2620 extending therefrom.

[0236] Each end of the recessed channel 2608 has a chamber 2622 and a fastener receiver 2624. The chamber 2622 is configured to engage with a protrusion 2620 of the cover 2610 and the fastener 2616 is configured to be attached to the fastener receiver 2624. By making the recessed channel 2608 symmetrical at each end, the cover 2610 can be selectively attached to the body 2604, such that the first counterweight 2618 can be configured in a first configuration ( Figure 68 (as shown) or second construction ( Figure 69(As shown) Orientation. In the first configuration, the first end 2612 of the cover 2610 is positioned on the heel side of the clubhead, such that the first weight 2618 is positioned toward the heel side of the body 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 cavity 2622 on the toe side. This makes the fastener receiver 2624 on the toe side and the cavity 2622 on the heel side unused by the cover 2610. Conversely, in the second configuration, the first end 2612 of the cover 2610 is positioned on the toe side of the clubhead, such that the first weight 2618 is positioned toward the toe side of the body 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 cavity 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 dog bone shape, allowing its position within the recessed channel 2608 to be switched as required or needed.

[0237] Alternatively or supplementally, the second counterweight 2626 may be coupled to a corresponding counterweight chamber 2628 defined within the body 2604 and the recessed channel 2608. The counterweight chamber 2628 is positioned near the fastener receiver 2624 at both ends of the recessed channel 2608 and is covered by the cover 2610 when the cover 2610 is coupled to the body 2604. Therefore, the second counterweight 2626 is secured within the counterweight chamber 2628 by the cover 2610 and indirectly held by the fasteners 2616 of the counterweight assembly 2602. In one aspect, the second counterweight 2626 may be at least partially screwed into the counterweight chamber 2628. It should be understood that the position and use of the second counterweight 2626 do not necessarily need to correspond to… Figure 68 and Figure 69 The orientation of the cover 2610 is shown. For example, the second weight 2626 can be used opposite to the first weight 2618 and is at least partially held by the second end 2614 of the cover 2610. In another example, only the first weight 2618 can be used without the second weight 2626. In yet another example, a pair of second weights 2626 can be used in a pair of weight chambers 2628. By using more than one weight 2618, 2626, the CG and MOI of the clubhead can be adjusted more finely as required or needed.

[0238] Figure 70 This is a schematic perspective view of another test machine 2700 with another counterweight assembly 2702. Figure 71 This is a partial cross-sectional view of the counterweight component 2702 in the unlocked configuration. Figure 72This is a partial cross-sectional view of the counterweight assembly 2702 in its locked configuration. Also refer to... Figure 70 and Figure 72 And similar to the above Figures 59 to 64 and Figures 67 to 69 In the example described herein, test machine 2700 represents a clubhead, which can be any type of clubhead described herein as required or necessary. In one aspect, a weight assembly 2702 is disposed on the skirt of the clubhead and at the rear periphery where the bottom and crown are joined together. Test machine 2700 includes a body 2704 representing the clubhead, the body 2704 having an outer surface 2706. A recessed channel 2708 is defined in the outer surface 2706 of the body 2704. However, in this example, weight assembly 2702 includes a cover 2710 pivotally coupled to the body 2704 and a sliding weight 2712 for adjusting the CG and MOI of the clubhead. In one aspect, the cover 2710 is lighter in density than the weight 2712, thereby allowing a greater amount of mass to be used to manipulate the CG and MOI.

[0239] In this example, the cover 2710 has a first end 2714 and an opposing second end 2716. A fastener 2718 is mounted on the first end 2714 of the cover 2710 (e.g., by a locking washer) and is configured to secure the first end 2714 to the body 2704 of the clubhead. The second end 2716 of the cover 2710 is pivotally coupled to the body 2704. A counterweight 2712 is slidably coupled to the cover 2710 and is movable between the first end 2714 and the second end 2716. In operation, the cover 2710 can be in at least a locking configuration and an unlocking configuration (…). Figure 70 The cover 2710 pivots around its second end 2716 between the cover 2710 and the second end 2716. In the locking configuration, a fastener 2718 secures the first end 2714 of the cover 2710 to the body 2704, and a counterweight 2712 is at least partially disposed within a recessed channel 2708 and held therein by the cover 2710. The position of the counterweight 2712 within the recessed channel 2708 between the first end 2714 and the second end 2716 of the cover 2710 is thus indirectly held by the fastener 2718. In the unlocking configuration, the first end 2714 of the cover 2710 pivots out of the recessed channel 2708 to allow the counterweight 2712 to be repositioned as required or needed (e.g., to slide along the cover 2710). The unlocking configuration in Figure 70 As shown, the counterweight 2712 moves with the cover 2710.

[0240] The second end 2716 of the cover 2710 may include a hook 2720 that pivotally engages with a support 2722 in the body 2704. The hook 2720 includes a hard stop 2724 configured to engage with the body 2704 in an unlocked position to limit pivoting of the cover 2710. The hard stop 2724 may taper at one end, making it easier for the second end 2716 of the cover 2710 to be inserted into the body 2704 during assembly. In other examples, the second end 2716 of the cover 2710 may be pivotally coupled to the body 2704 via a pin connector (not shown). The recessed channel 2708 may include one or more locating lugs 2726 to assist in positioning the counterweight 2712 as required or needed. In some aspects, the counterweight 2712 may be positioned at two, four, or six discrete locations defined at least partially by the locating lugs 2726. In this example, the counterweight 2712 is slidably engaged with and pivots together with the cover 2710. In other examples, the counterweight may be slidably engaged with the body so that it does not pivot together with the cover. See below. Figure 73 Describe this example.

[0241] Figure 73 It can be used with the test machine 2700 ( Figure 70 A cross-sectional view of another counterweight assembly 2750 used in conjunction with (shown) is shown. In this example, the counterweight assembly 2750 includes a pivotable cover 2752 and a slidable counterweight 2754. However, in this example, the counterweight 2754 is at least partially slidably engaged within a recessed channel 2708 of the body 2704, such that the counterweight 2754 does not pivot together with the cover 2752. The counterweight assembly 2750 includes a guide rail 2756 that secures the counterweight 2754 to the body 2704 while still allowing the counterweight 2754 to slide. Figure 73 In the locking configuration shown, the cover 2752 fixes the position of the counterweight 2754 relative to the main body 2704 via the guide rail 2756.

[0242] Figure 74 This is an exploded perspective view of another test machine 2800 with another counterweight component 2802. Similar to the one above. Figures 59 to 64 and Figures 67 to 72In the example described herein, the test machine 2800 represents a clubhead, which can be any type of clubhead described herein as required or necessary. In one aspect, a weight assembly 2802 is disposed on the skirt of the clubhead and at the rear periphery where the bottom and crown are joined together. The test machine 2800 includes a body 2804 representing the clubhead and a bracket 2807. The body 2804 has an outer surface 2806. A recessed channel 2808 is defined in the outer surface 2806 of the body 2804. However, in this example, the weight assembly 2802 includes a cover 2810, which is coupled to the body 2804 by a fastener 2812 disposed near the center of the cover 2810. The cover 2810 is configured to fix a slidable weight 2814 while allowing selective adjustment of the position of the weight 2814. The counterweight 2814 has an elongated U-shape to accommodate a centrally mounted fastener 2812, and a portion of the counterweight 2814 can be disposed on both sides of the fastener 2812. The cover 2810 has a protrusion 2816 at each end to engage with a recessed channel 2808. The recessed channel 2808 includes a positioning lug 2818 to aid in positioning the counterweight 2814 and a recess 2820 to receive at least a portion of a position indicator 2822 of the counterweight 2814.

[0243] Figure 75 This is a perspective view of the bottom 2902 of another golf club head 2900 with another weight assembly 2904. Figure 76 It is along Figure 75 The cross-sectional view of counterweight component 2904 taken from line 76-76. Figure 77 It is along Figure 75 The cross-sectional view of counterweight component 2904, taken along line 77-77. Also refer to... Figures 75 to 77The golf club head 2900 is a metal wood-type golf club head having a body 2906, which includes a striking face 2908 having a lower edge 2910 and an upper edge (not shown) extending between a toe portion 2912 and a heel portion 2914. A pommel 2902 extends from the lower edge 2910 on the underside of the club head 2900, and a crown portion 2916 extends from the upper edge on the top of the club head 2900. The pommel 2902, the striking face 2908, and the crown portion 2916 are joined together to define an outer surface 2918 of the body 2906, wherein an internal cavity 2920 is formed inside the body 2906. A neck 2922 is located at the heel portion 2914 and is configured to attach to the shaft (not shown). The components of the metal wood clubhead 2900 (e.g., sole, striking face, crown, neck, etc.) function similarly to those described above. The body 2906 can be formed into any type of clubhead as required or needed, such as a fairway metal clubhead, an iron clubhead, or a hybrid clubhead. Furthermore, the features of the weight assembly 2904 described below can be additionally or alternatively used in any type of clubhead described herein as required or needed.

[0244] In this example, a recessed channel 2924 is defined within the bottom 2902 of the body 2906 of the clubhead 2900. The channel 2924 extends in the direction of the toe 2912-heel 2914, allowing adjustment of the clubhead's CG and MOI for right-to-left deviation. In one aspect, the recessed channel 2924 may define a transition region in which the bottom 2902 and crown 2916 are joined relative to the striking face 2908, and this transition region is referred to as the skirt of the clubhead 2900. Therefore, the recessed channel 2924 and the weight assembly 2904 are located at the rear periphery of the clubhead 2900 and near the point where the bottom 2902 and crown 2916 are joined. In another aspect, the recessed channel 2924 and the weight assembly 2904 are substantially located at the rear periphery portion of the clubhead 2900 opposite the striking face 2908.

[0245] The weight assembly 2904 includes a slidable weight 2926 at least partially disposed within a recessed channel 2924 and configured to slide therein, a cover 2928 at least partially extending above the channel 2924 and adapted to releasably secure the weight 2926 to the recessed channel 2924, and a fastener 2930 configured to engage the cover 2928 to a body 2906. The fastener 2930 indirectly holds the weight 2926 in the recessed channel 2924 via the cover 2928, and allows the weight 2926 to be used to adjust the clubhead's CG and MOI. Similar to the example described above, the weight assembly 2904 is configured in at least a locking configuration (in Figure 79 (shown in and further described below) and unlocking construction (in Figure 80 The cover 2928 (shown in the diagram and further described below) moves between the recessed channel 2924 and the body 2906. In the locking configuration, the cover 2928 is at least partially disposed within the recessed channel 2924, and the counterweight 2926 is fixed within the channel 2924 in a manner that restricts its movement. In the unlocking configuration, the fastener 2930 allows the cover 2928 to move along the fastener axis 2932, thereby releasing the counterweight 2926, which can slide relative to the cover 2928 and the body 2906. Additionally, in this example, the cover 2928 can also move at least partially relative to the recessed channel 2924 and the body 2906 towards the recessed channel 2924 and the body 2906. Figure 81 The counterweight removal structure rotation is shown in the diagram and further described below.

[0246] The main body 2906 includes a partial wall 2934 disposed within a recessed channel 2924. The partial wall 2934 extends from the bottom of the recessed channel 2924, and the counterweight 2926 includes a recess 2936 shaped and sized to receive at least a portion of the partial wall 2934. By slidably engaging the partial wall 2934 and the recess 2936 of the counterweight 2926, the counterweight 2926 does not move with the cover 2928 as the cover moves toward the unlocking configuration. To aid in positioning the counterweight 2926 at a preselected location within the recessed channel 2924, the cover 2928 includes at least one positioning lug 2938 extending from the inner surface of the cover 2928. The counterweight 2926 includes a corresponding hollow portion 2940 shaped and sized to receive at least a portion of the positioning lug 2938. Therefore, when the counterweight 2926 engages with the cover 2928, the counterweight 2926 is held more tightly within the cover 2928 to reduce or prevent rattling and further movement of the counterweight 2926 in the locking configuration. In this example, the inner surface of the cover 2928 includes an inclined surface 2942 configured to engage with a corresponding inclined surface 2944 on the counterweight 2926. The inclined surfaces 2942 and 2944 taper gradually in one direction, resulting in a greater height above the bottom wall of the recessed channel 2924 and increasing in a direction away from the local wall 2934. This configuration pushes the counterweight 2926 toward the top wall of the recessed channel 2924 and induces a compressive force on the counterweight 2926 between the cover 2928 and the recessed channel 2924 to secure the counterweight 2926 within the recessed channel 2924.

[0247] In this example, the cover 2928 is formed by a first portion 2946 and a second portion 2948. A fastener 2930 engages with the first portion 2946 via a locking washer (not shown), allowing the entire cover 2928 to move linearly along the fastener axis 2932. The second portion 2948 has a first end 2950 rotatably coupled to the first portion 2946 and an opposing second end 2952 having a protrusion 2954. Similar to other examples described herein, the protrusion 2954 is configured to engage with a corresponding chamber 2956 defined in the body 2906 and within the recessed channel 2924, such that when the counterweight assembly 2904 is in the locked configuration, the second end 2952 more tightly secures the counterweight 2926 within the recessed channel 2924. By allowing the second portion 2948 of the cover 2928 to rotate relative to the first portion 2946 when the second end 2952 is not engaged with the recessed channel 2924, access to the counterweight 2926 is increased, thus allowing it to be accessed as required or as needed. Figure 81 The weight 2926 is completely removed from the clubhead 2900, as shown.

[0248] Figure 78 It is counterweight component 2904 ( Figures 75 to 77 An exploded view of the cover 2928 (shown). The cover 2928 includes a first portion 2946 and a second portion 2948 connected to a fastener 2930. In this example, the first portion 2946 and the second portion 2948 may be discrete and separable from each other. In other examples, the first portion 2946 and the second portion 2948 may be fixed to each other but still rotatable relative to each other. The first portion 2946 has a first end 2958 having a hole shaped and sized to receive and connect to the fastener 2930. The hole extends in a direction along the fastener axis 2932. The first portion 2946 also has an opposing second end 2960 configured to be rotatably connected to the second portion 2948. The second end 2960 has a cylinder 2962 spaced apart from the first end 2958 and extending in a direction substantially orthogonal to the fastener axis 2932. The cylinder 2962 rotatably engages the second part 2948 and defines an axis of rotation for the second part 2948 to rotate relative to the first part 2946.

[0249] The second portion 2948 extends between the first end 2950 and the second end 2952. The first end 2950 has a hook 2964 that rotatably engages with the cylinder 2962 of the first portion 2946, such that the axis of rotation of the second portion 2948 is substantially orthogonal to the fastener axis 2932. In one aspect, the outer surface 2966 of the hook 2964 is circular, allowing the second portion 2948 to rotate about the cylinder 2962. The hook 2964 is at least partially formed by an arm 2968, which is elongated and engages with the sidewall of the hole in the first portion 2946, thus partially restricting the rotation of the second portion 2948. This configuration allows the second portion 2948 to move together with the first portion 2946 as the first portion 2946 moves linearly along the fastener axis 2932. In some examples, the hook 2964 can engage around the cylinder 2962, requiring a separating force to separate the two parts 2946, 2948. The second end 2952 of the second part 2948 includes a protrusion 2954. A cutout 2970 is formed extending between the first end 2950 and the second end 2952 of the second part 2948, the cutout being sized and shaped to at least partially receive the counterweight 2926. Figure 76 and Figure 77 (As shown). Within the cutout 2970, a positioning lug 2938 and an inclined surface 2942 are formed, which are covered by a cover 2928.

[0250] Figure 79 This is a perspective view of the counterweight assembly 2904 in a locking configuration. In the locking configuration, a fastener 2930 is fastened to the body 2906 of the clubhead, such that a cover 2928 engages with the body 2906 and at least partially engages within a recessed channel 2924 to secure the counterweight 2926 within the recessed channel 2924. In the locking configuration, the fastener 2930 indirectly holds the counterweight 2926 within the recessed channel 2924 via the cover 2928. A first end of a first portion 2946 of the cover 2928 is secured to the body 2906 by the fastener 2930. A second end of a second portion 2948 of the cover 2928 is secured to the body 2906 by a protrusion 2954 (…). Figure 78 (As shown) is fixed to the main body 2906, thereby preventing the second part 2948 from rotating relative to the first part 2946. Between the first part 2946 and the second part 2948, the hook 2964 and the cylinder 2962 (as shown) Figure 78 The engagement limiting portions 2946 and 2948 (shown) are separated from each other in the locking configuration. To release the counterweight 2926 from its fixed position, fastener 2930 is used to move the counterweight assembly 2904 toward the referenced below. Figure 80 The description of unlocking the movement.

[0251] Figure 80This is a perspective view of the counterweight assembly 2904 in the unlocked configuration. In the unlocked configuration, the fastener 2930 is released relative to the body 2906 of the clubhead. When the fastener 2930 is released, the cover 2928 moves along the fastener axis 2932 ( Figure 78 (As shown) it moves linearly and rises at least partially from the recessed channel 2924. In the unlocking configuration, the cover 2928 releases the counterweight 2926, allowing the counterweight 2926 to slide within the recessed channel 2924. The first end of the first portion 2946 of the cover 2928 is held fixed to the body 2906 in the unlocking configuration by fastener 2930.

[0252] In some examples, the second end of the second portion 2948 of the cover 2928 can be accessed via protrusion 2954 in the unlocking configuration. Figure 78 (As shown) Remains partially engaged with the body 2906 such that rotation of the second portion 2948 relative to the first portion 2946 is still restricted and the counterweight 2926 cannot be removed from the recessed channel 2924. However, the counterweight 2926 can still slide and reposition as required or needed. 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 in order to position the cover 2928 as described below. Figure 81 In the aforementioned counterweight removal configuration. In other examples, in the unlocking configuration, the cover 2928 is raised so that the protrusion 2954 disengages from the recessed channel 2924 without any further movement along the fastener axis 2932. In this example, the cover 2928 is positioned such that it can face towards the following reference. Figure 81 The counterweight removal mechanism moves without the need for further movement of the fastener 2930.

[0253] Figure 81 This is a perspective view of the counterweight assembly 2904 in the counterweight removal configuration. In the counterweight removal configuration, the first portion 2946 of the cover 2928 rises at least partially from the recessed channel 2924, such that the protrusion 2954 of the second portion 2948 disengages from the chamber 2956 defined within the recessed channel 2924. This disengagement allows the second portion 2948 of the cover 2928 to be opened toward the counterweight removal configuration by rotating relative to the first portion 2946 in a direction outward relative to the body 2906 of the clubhead. The fastener 2930 is not required for opening the second portion 2948 of the cover 2928. The axis of rotation around which the second portion 2948 rotates is parallel to the axis 2932 of the fastener. Figure 78(As shown) is basically orthogonal. By opening the cover 2928, the counterweight 2926 can be completely removed from the recessed channel 2924 as required or needed. Additionally, when the second part 2948 rotates relative to the first part 2946 of the cover 2928, the engagement of the hook 2964 and the cylinder 2962 ( Figure 78 (As shown) Restriction parts 2946 and 2948 are separated from each other in the counterweight removal structure.

[0254] Figure 82 This is a perspective view of the bottom 3002 of another golf club head 3000 with another weight assembly 3004. Figure 83 It is along Figure 82 The cross-sectional view of counterweight component 3004, taken from line 83-83. Also refer to... Figure 82 and Figure 83 The golf club head 3000 includes a body 3006, a striking face 3008, a lower edge 3010, a upper edge (not shown), a toe 3012, a heel 3014, a crown 3016, an outer surface 3018, an internal cavity 3020, and a neck 3022, which function similarly to the components described above. The body 3006 can be shaped as required or necessary to form any type of club head described herein, such as a metal wood club head, a fairway metal club head, an iron club head, or a hybrid club head. Furthermore, the features of the weight assembly 3004 described below can be used supplementarily or alternatively to any type of club head described herein, as required or necessary.

[0255] In this example, the recessed channel 3024 is defined within the bottom 3002 and / or the transition area (e.g., the skirt) where the bottom 3002 and the crown 3016 are joined. The channel 3024 extends in the direction of the toe 3012-heel 3014, allowing adjustment of the clubhead's CG and MOI for right-to-left deviation. On one hand, the recessed channel 3024 and the weight assembly 3004 are substantially located on the rear peripheral portion of the clubhead 3000 opposite the striking face 3008.

[0256] The counterweight assembly 3004 includes a slidable counterweight 3026 at least partially disposed within a recessed channel 3024 and configured to slide therein, a cover 3028 at least partially extending above the channel 3024 and adapted to releasably secure the counterweight 3026 to the recessed channel 3024, and a fastener 3030 configured to engage the cover 3028 to a body 3006. Similar to the example described above, the counterweight assembly 3004 is configured to at least lock in a locked configuration (in... Figure 85 (shown in and further described below) and unlocking construction (in Figure 86The cover 3028 is at least partially disposed within the recessed channel 3024, and the counterweight 3026 is fixed within the channel 3024 in a manner that restricts its movement. In the unlocking configuration, the fastener 3030 allows the cover 3028 to move along the fastener axis 3032, thereby allowing the counterweight 3026 to slide relative to the cover 3028 and the body 3006. Additionally, in this example, the cover 3028 can also move at least partially relative to the recessed channel 3024 and the body 3006 towards the recessed channel 3024. Figure 87 The counterweight removal mechanism is shown in the figure and further described below. In addition, the body 3006 includes a partial wall 3034 that slidably engages with the counterweight 3026, and the cover 3028 includes at least one positioning lug 3036 to facilitate the positioning of the counterweight 3026.

[0257] Figure 84 It is counterweight component 3004 ( Figure 82 and Figure 83 A perspective view of the covering 3028 (shown). Continue referring to... Figure 83 The cover 3028 has a first end 3038 and an opposing second end 3040. The second end 3040 has a protrusion 3042 similar to those in other examples herein, which is configured to engage with a corresponding chamber 3044 defined in the body 3006 and within the recessed channel 3024. Thus, when the counterweight assembly 3004 is in the locked configuration, the second end 3040 more tightly secures the counterweight 3026 to the body 3006. In some examples, a conduit 3046 is defined in the cover 3028, which is configured to engage with a corresponding protrusion (not shown) extending from the recessed channel 3024. This conduit and protrusion feature is conveniently referenced above. Figure 65 and Figure 66 The second end 3040 of the cover 3028 is slidably engaged with a recessed channel 3024 within the body 3006. The first end 3038 of the cover 3028 engages with an enlarged head 3048 of the fastener 3030, and the fastener 3030 is rotatable relative to the cover 3028. In this example, the fastener 3030 is not connected to the cover 3028 by a locking washer, and the fastener 3030 has no locking washer.

[0258] The first end 3038 of the cover 3028 has a retainer 3050 defined on the inner surface of the cover 3028, the retainer being shaped and sized to receive an enlarged head 3048 of the fastener 3030. The retainer 3050 has an inner surface 3052 that is larger than the enlarged head 3048, such that the enlarged head 3048 can rotate freely within the retainer 3050. In this example, the inner surface 3052 has a first sidewall 3054 substantially parallel to the fastener axis 3032 and an opposing second sidewall 3056 tapered relative to the fastener axis 3032. In one aspect, the second sidewall 3056 is oriented to increase the gap between the first sidewall 3054 and the second sidewall 3056 in a direction toward the outer surface of the cover 3028. When the fastener 3030 is fastened to or released from the body 3006 of the clubhead, the enlarged head 3048 is positioned against the first sidewall 3054 of the inner surface 3052, as... Figure 83 As shown. This configuration aligns with the cover 3028 along the fastener axis 3032, allowing the cover 3028 to move linearly along the fastener axis 3032 and engage or disengage from the protrusion 3042 relative to the chamber 3044. However, when the fastener 3030 is released from the body 3006 (e.g., the enlarged head 3048 rises from the body 3006 along the fastener axis 3032) and the cover 3028 disengages from the body 3006, the second end 3040 of the cover 3028 can also tilt away from the body 3006 by the orientation of the second sidewall 3056. This movement of the cover 3028 allows the cover 3028 to at least partially oriented towards the protrusion 3042 around the fastener axis 3032. Figure 87 The counterweight removal structure rotation is shown in the diagram and further described below.

[0259] The inner surface 3052 of the retainer 3050 also includes an axial outer wall 3058 substantially orthogonal to the fastener axis 3032. The axial outer wall 3058 confines the enlarged head 3048 within the retainer 3050 in the axial direction along the fastener axis 3032, thus causing a corresponding linear movement on the cover 3028 when the enlarged head 3048 is released and raised relative to the body 3006 of the clubhead, even without the use of a locking washer. The axial outer wall 3058 may include an eyelet 3060 allowing a tool (not shown) to access the enlarged head 3048. In one aspect, the diameter of the eyelet 3060 is smaller than the diameter of the enlarged head 3048. The opposing inner axial wall 3062 is configured to at least partially hook around the enlarged head 3048, such that when the enlarged head 3048 is tightened and lowered relative to the body 3006, a corresponding linear movement on the cover 3028 is caused even without the use of a locking washer. Additionally, the retainer 3050 is a protruding part of the cover 3028 (e.g., via the axial inner wall 3062) having an outer surface 3064 that extends at least partially circumferentially around the fastener axis 3032. Therefore, the outer surface 3064 is curved and at least partially cylindrical. In one aspect, the outer surface 3064 is curved and extends at least 180° around the fastener axis 3032. The outer surface 3064 facilitates rotation of the cover 3028 relative to the body 3006 when the cover 3028 is at least partially raised from the recessed channel 3024.

[0260] In this example, the retainer 3050 can be accessed from the top or bottom of the cover 3028, and allows the fastener 3030 to be at least partially inserted into the retainer 3050 (e.g., the enlarged head 3048). When the cover 3028 is coupled to the body 3006 by the fastener 3030 and is at least partially inserted into the recessed channel 3024, the retainer 3050 is at least partially inserted into the recessed channel 3024. Because it is a protruding feature, it restricts or prevents the cover 3028 from separating from the enlarged head 3048 without completely pulling the retainer 3050 out of the recessed channel 3024.

[0261] Figure 85 This is a perspective view of the counterweight assembly 3004 in a locking configuration. In the locking configuration, a fastener 3030 is fastened to the body 3006 of the clubhead, such that a cover 3028 engages with the body 3006 and at least partially engages within a recessed channel 3024 to secure the counterweight 3026 within the recessed channel 3024. In the locking configuration, the fastener 3030 indirectly holds the counterweight 3026 within the recessed channel 3024 via the cover 3028. A first end of the cover 3028 is secured to the body 3006 by the fastener 3030. A second end of the cover 3028 is secured by a protrusion 3042 (…). Figure 83 (As shown) is fixed to the body 3006, thereby preventing the cover 3028 from rotating. To release the counterweight 3026 from its fixed position, a fastener 3030, accessible through eyelet 3060, is used to align the counterweight assembly 3004 toward the referenced below. Figure 86 The description of unlocking the movement.

[0262] Figure 86 This is a perspective view of the counterweight assembly 3004 in the unlocked configuration. In the unlocked configuration, the fastener 3030 is released relative to the body 3006 of the clubhead. When the fastener 3030 is released, the cover 3028 moves along the fastener axis 3032 ( Figure 83 (As shown) the cover 3028 moves linearly and is at least partially raised from the recessed channel 3024 by engaging the fastener head with the axial outer wall of the retainer 3050. In the unlocking configuration, the cover 3028 releases the counterweight 3026, allowing the counterweight 3026 to slide within the recessed channel 3024. In the unlocking configuration, the first end of the cover 3028 is held fixed to the body 3006 by the fastener 3030.

[0263] In some examples, the second end of the cover 3028 can be partially engaged with the body 3006 in the unlocking configuration by means of the protrusion 3042, such that rotation of the cover 3028 is still restricted and the counterweight 3026 cannot be removed from the recessed channel 3024. However, the counterweight 3026 can still slide and reposition as required or needed. 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 in order to position the cover 3028 as described below. Figure 87 In the aforementioned counterweight removal configuration. In other examples, in the unlocking configuration, the cover 3028 is raised so that the protrusion 3042 disengages from the recessed channel 3024 without any further movement along the fastener axis 3032. In this example, the cover 3028 is positioned such that it can face towards the following reference. Figure 87 The counterweight removal mechanism moves without requiring further movement of the fastener 3030.

[0264] Figure 87This is a perspective view of the counterweight assembly 3004 in the counterweight removal configuration. In the counterweight removal configuration, the first end 3038 of the cover 3028 rises at least partially from the recessed channel 3024, such that the protrusion 3042 of the second end 3040 disengages from the cavity 3044 defined within the recessed channel 3024. This disengagement allows the second end 3040 of the cover 3028 to open toward the counterweight removal configuration by tilting the body 3006 away from the clubhead and rotating it about the fastener axis of the fastener 3030. For example, the fastener head rests against the second sidewall 3056 ( Figure 83 As shown, the second end 3040 is positioned tilted away from the body 3006, and the second end 3040 can rotate about the fastener 3030. By opening the cover 3028, the counterweight 3026 can be completely removed from the recessed channel 3024 as required or needed. Additionally, the retainer 3050 of the fastener 3030 ( Figure 83 (As shown) it still protrudes at least partially into the recessed channel 3024, such that the cover 3028 cannot be completely removed from the body 3006 of the clubhead without further movement of the fastener 3030. This configuration allows both the cover 3028 and the fastener 3030 to remain attached to the body 3006 in the counterweight removal configuration.

[0265] Figure 88 This is a perspective view of the bottom 3102 of another golf club head 3100 having another weight assembly 3104. The golf club head 3100 includes a body 3106, a striking face 3108, a lower edge 3110, a upper edge (not shown), a toe (not shown), a heel 3112, a crown 3114, an outer surface 3116, an internal cavity (not shown), and a neck 3118, which function similarly to the components described above. The body 3106 can be shaped as required or necessary to form any type of club head described herein, such as a metal wood club head, a fairway metal club head, an iron club head, or a hybrid club head. Furthermore, the features of the weight assembly 3104 described below can be used supplementarily or alternatively to any type of club head described herein, as required or necessary.

[0266] In this example, channel 3120 is defined by body 3106 and is a through opening extending through body 3106 between toe-side opening 3122 and heel-side opening 3124. In some examples, channel 3120 may be separated from the internal cavity of body 3106 by channel walls. In other examples, channel 3120 may at least partially open into the internal cavity of body 3106. Channel 3120 may be located within bottom 3102 and / or the transition area (e.g., skirt) where bottom 3102 and crown 3114 are joined. Channel 3120 extends in the toe-heel direction, allowing adjustment of CG and MO of clubhead 3100 for right-to-left deviation. On one hand, channel openings 3122, 3124 are substantially located on the rear peripheral portion opposite the striking face 3108 of clubhead 3100 and at the front and rear centerlines of clubhead 3100.

[0267] The counterweight assembly 3104 includes a slidable counterweight 3126 that slidably engages with a cover 3128 and a fastener 3130 configured to attach the cover 3128 to a body 3106. The cover 3128 has a first end 3132 and an opposing second end 3134. The fastener 3130 is attached to the first end 3132 (e.g., by a locking washer), and the cover 3128 extends in a direction along the axis of the fastener. Both the first end 3132 and the second end 3134 of the cover 3128 have an outer surface whose shape and size are configured to align with and not extend from the outer surface 3116 of the club head 3100 when fixed to it. Similar to the example described above, the counterweight assembly 3104 is configured to have at least a locking configuration (not shown) and an unlocking configuration (…). Figure 88 (Shown) Movement between. In the locking 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 3106 of the clubhead 3100. When the weight assembly 3104 is in the locking configuration, the position of the weight 3126 on the cover 3128 is fixed within the channel 3120. Therefore, the fastener 3130 indirectly holds the weight 3126 in the channel 3120 via the cover 3128. In the unlocking configuration, the fastener 3130 allows the cover 3128 to be pulled out at least partially from the channel 3120 and along the fastener axis, such that the weight 3126 is at least partially removed from the channel 3120. When the weight 3126 is removed from the body 3106, the weight 3126 can slide relative to the cover 3128 to remove and / or reposition on the cover 3128. Therefore, the position of the counterweight 3126 on the cover 3128 is adjustable, so that the counterweight assembly 3104 is used to adjust the GC and MOI of the clubhead 3100.

[0268] In this example, the inner surface of the cover 3128 includes at least one locating lug 3136 spaced apart along the fastener axis. The counterweight 3126 includes one or more corresponding hollow portions 3138, the shape and size of which are configured to receive at least a portion of the locating lug 3136. Additionally, when the locating lug 3136 engages with the hollow portion 3138, the counterweight 3126 is held more tightly by the cover 3128 to reduce or prevent the counterweight 3126 from clicking and further moving in the locking configuration. In one aspect, the cover 3128 may include a shelf 3140 supporting the counterweight 3126. When the counterweight assembly 3104 moves to the unlocking configuration, the shelf 3140 allows the counterweight 3126 to be removed from the channel 3120.

[0269] In some examples, the first end 3132 of the cover 3128 may engage at least partially with the channel 3120, such that the cover 3128 is coupled to the body 3106 of the clubhead 3100 in the unlocked configuration. In other examples, the cover 3128 may be completely removed from the body 3106 of the clubhead 3100 as required or needed. By securing the sliding weight 3126 within the body 3106 of the clubhead 3100, the aerodynamic performance of the outer surface 3116 of the clubhead 3100 can be improved.

[0270] Figure 89 This is a perspective view of the bottom 3202 of another golf club head 3200 having another weight assembly 3204, wherein the other weight assembly 3204 is in a locked configuration. The golf club head 3200 includes a body 3206, a striking face 3208, a lower edge 3210, a upper edge (not shown), a toe (not shown), a heel 3212, a crown 3214, an outer surface 3216, an internal cavity (not shown), and a neck 3218, which function similarly to the components described above. The body 3206 can be shaped as required or necessary to form any type of club head described herein, such as a metal wood club head, a fairway metal club head, an iron club head, or a hybrid club head. Furthermore, the features of the weight assembly 3204 described below can be used supplementarily or alternatively to any type of club head described herein, as required or necessary.

[0271] In this example, channel 3220 is defined by body 3206 for supporting weight assembly 3204. Channel 3220 may include a first channel 3222 and a second channel 3224 communicating with each other. The first channel 3222 is defined in the bottom 3202 of body 3206 and extends in a front-rear direction of clubhead 3200 having a striking face 3208, wherein the striking face 3208 is located at the front of clubhead 3200. The second channel 3224 is defined in the bottom 3202 and / or the transition area (e.g., skirt) where the bottom 3202 and crown 3214 are joined. The second channel 3224 extends in a toe-heel direction, allowing adjustment of the CG and MOI of clubhead 3200 for right-left yaw. In one aspect, the second channel 3224 is substantially located at the rear peripheral portion of clubhead 3200 opposite the striking face 3208. Therefore, the first channel 3222 and the second channel 3224 are oriented in substantially orthogonal directions and on different planes of the clubhead 3200.

[0272] The counterweight assembly 3204 includes a slidable counterweight 3226 that is slidably engaged with the cover 3228. Figure 91 (As shown) and a fastener 3230 configured to attach a cover 3228 to a body 3206. In this example, the cover 3228 includes a fastener protrusion 3232 and a weight tray 3234. The fastener protrusion 3232 is sized and shaped to be received within a first channel 3222, while the weight tray 3234 is sized and shaped to be received within a second channel 3224. The fastener 3230 is attached to the fastener protrusion 3232 (e.g., by a locking washer) and the weight tray 3234. The fastener 3230 is configured to engage with both the fastener protrusion 3232 and the weight tray 3234 to retain and secure the weight 3226 within the body 3206 of the club head 3200. Similar to the example described above, the weight assembly 3204 is configured to at least Figure 89 The locking structure shown and in Figure 90 The lock mechanism shows movement between the locking and unlocking configurations. In the locking configuration, the cover 3228 is at least partially disposed within the recessed channel 3220, and the counterweight 3226 is secured within the body 3206 of the clubhead 3200 in a manner that restricts its movement. In the unlocking configuration, the fastener 3230 releases the cover 3228 from the body 3206, allowing the counterweight assembly 3204 to move towards the body 3206. Figure 91 The counterweight adjustment mechanism is shown in the diagram and further described below. In the counterweight adjustment mechanism, the position of the counterweight 3226 within the counterweight tray 3234 can be adjusted as required or as needed.

[0273] In the locking configuration, both the fastener protrusion 3232 and the weight tray 3234 are positioned within the body 3206 of the clubhead 3200, ensuring they do not protrude and align with the outer surface 3216 of the clubhead 3200. Additionally, the weight 3226 is entirely housed within the body 3206 of the clubhead 3200 and secured therein in the locking configuration. The fastener 3230 indirectly holds the weight 3226 within the recessed channel 3220 via the cover 3228, allowing the weight 3226 to be used for adjusting the CG and MOI of the clubhead 3200.

[0274] Figure 90 This is a perspective view of the counterweight assembly 3204 in the unlocked configuration. In the unlocked configuration, the fastener 3230 is released, causing it to rise at least partially along the fastener axis from the first channel 3222. Since the fastener protrusion 3232 is engaged with the fastener 3230, the fastener protrusion 3232 also rises at least partially from the first channel 3222. In this example, the fastener 3230 is positioned towards the front of the first channel 3222. However, this movement of the fastener 3230 and the fastener protrusion 3232 does not correspond to the movement of the counterweight tray 3234 within the second channel 3224. Instead, once the counterweight assembly 3204 is in the unlocked configuration, the user can use the fastener protrusion 3232 to at least partially pull the counterweight tray 3234 out of the second channel 3224 and approach the counterweight 3226, as... Figure 91 As shown. In the unlocked configuration, the counterweight 3226 can still be fully housed within the main body 3206 of the clubhead.

[0275] Figure 91 This is a perspective view of the counterweight component 3204 in the counterweight adjustment structure. Figure 92 It is along Figure 91 The cross-sectional view of counterweight component 3204, taken from line 92-92. Also refer to... Figure 91 and Figure 92 The counterweight tray 3234 has a first end 3236 with a slot 3238, the slot 3238 being sized and shaped to receive a counterweight 3226 and allow the counterweight to be selectively positioned (e.g., by sliding) therein. A second end 3240 of the counterweight tray 3234 is threadedly engaged with a fastener 3230, allowing the fastener 3230 to rotate relative to it. A slot 3242 is defined between the first channel 3222 and the second channel 3224, allowing the fastener 3230 to extend between them and engage with both the fastener protrusion 3232 and the counterweight tray 3234. The slot 3242 extends in a similar rear-facing direction into the first channel 3222, allowing the counterweight assembly 3204 to move linearly in a rearward direction toward the counterweight adjustment mechanism when the counterweight assembly 3204 is unlocked (e.g., disengaging the fastener protrusion 3232 from the first channel 3222).

[0276] During operation, when the counterweight assembly 3204 is unlocked and moved toward the counterweight adjustment mechanism, the first end 3236 of the counterweight tray 3234 protrudes from the body 3206, making the counterweight 3226 accessible within the recess 3238 and its position adjustable. In some examples, the counterweight 3226 can be completely removed from the counterweight assembly 3204 as required or needed in the counterweight adjustment mechanism.

[0277] Figure 93 This is a perspective view of the bottom 3302 of another golf club head 3300 with another weight component 3304. Figure 94 This is a perspective view of counterweight component 3304. Also refer to... Figure 93 and Figure 94 The golf club head 3300 includes a body 3306, a striking face 3308, a lower edge 3310, a upper edge (not shown), a toe (not shown), a heel 3312, a crown 3314, an outer surface 3316, an internal cavity (not shown), and a neck 3318, which function similarly to the components described above. The body 3306 can be shaped as required or necessary into any type of club head described herein, such as a metal wood club head, a fairway metal club head, an iron club head, or a hybrid club head. Furthermore, the features of the weight assembly 3304 described below can be used supplementarily or alternatively to any type of club head described herein, as required or necessary.

[0278] In this example, the recessed channel 3320 is defined within the bottom 3302 and / or the transition area (e.g., the skirt) where the bottom 3302 and the crown 3314 meet. The channel 3320 extends in the toe-heel direction, allowing adjustment of the clubhead 3300's CG and MOI for right-to-left deviation. On one hand, the recessed channel 3320 and the weight assembly 3304 are substantially located on the rear peripheral portion of the clubhead 3300 opposite the striking face 3308.

[0279] The counterweight assembly 3304 includes an insert 3322 configured to insert into a recessed channel 3320 and be coupled to the body 3306 of the clubhead 3300. The insert 3322 has one or more weights coupled thereto. In this example, a first weight 3324 and a second weight 3326 are coupled to the insert 3322. The first weight 3324 may have a different mass than the second weight 3326. An actuator 3328 is also coupled to the insert 3322 and disposed between the weights 3324 and 3326. In this example, the actuator 3328 is rotatable relative to the insert 3322 and has an enlarged head 3330 and a lead screw 3332. The enlarged head 3330 is contained within the insert 3322, and the lead screw 3332 extends in a direction away from the insert 3322. However, actuator 3328 is not used to connect counterweight assembly 3304 to the body 3306 of clubhead 3300. Instead, insert 3322 includes locking member 3334 configured to selectively engage with the body 3306 of clubhead 3300 and secure counterweight assembly 3304 within recessed channel 3320. Locking member 3334 engages with lead screw 3332 and has a pair of opposing ends 3336 protruding from insert 3322.

[0280] In operation, the counterweight assembly 3304 is configured in a locking configuration (in... Figure 95 (shown in and further described below) and unlocking construction (in Figure 96 The insert 3322 moves between the points shown in the diagram and further described below. In the locking configuration, the insert 3322 is secured within the recessed channel 3320 by the end 3336 of the locking member 3334, such that the weights 3324, 3326 are connected to the golf club head 3300. In the unlocking configuration, the end 3336 of the locking member 3334 disengages from the body 3306 of the club head 3300, such that the insert 3322 can be removed from the recessed channel 3320. Once the insert 3322 is removed, one or more weights 3324, 3326 can be replaced and replaced to adjust the weights in the weight assembly 3304. In other examples, the insert 3322 can be flipped over and inserted back into the recessed channel 3320 to adjust the position of the weights 3324, 3326 within the golf club head 3300.

[0281] Figure 95 It is in the locked structure along Figure 93 The cross-sectional view of the counterweight assembly 3304 is taken by line 93-93. In the locking configuration, rotating the actuator 3328 causes the locking member 3334 to be positioned substantially orthogonal to the axis of rotation and in a linear orientation. Figure 95The position of the locking member 3334 shown causes the end 3336 to protrude from the insert 3322 and engage with a corresponding chamber 3338 defined in the body 3306 and recessed channel 3320 of the clubhead. The locking member 3334, engaged with the body 3306, connects the weight assembly 3304 to the clubhead and secures the position and orientation of the weights 3324 and 3326. The actuator 3328 is rotatable to move the locking member 3334 toward the unlocking configuration described below, allowing the insert 3322 to be removed and separated from the body 3306 of the clubhead.

[0282] Figure 96 It is along the unlocked structure Figure 93 The image shows a cross-sectional view of the counterweight assembly 3304 taken along line 93-93. The locking member 3334 is a flexible member such that when the actuator 3328 rotates, the rotational movement of the lead screw 3332 causes a corresponding linear movement at the center of the locking member 3334. Therefore, the locking member 3334 can be bent to retract its 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 allows the counterweight assembly 3304 to be removed from the recessed channel 3320 and the body 3306 of the clubhead. In this example, the end 3336 of the locking member 3334 is stiffer than the middle portion, allowing the end 3336 to engage and secure to the recessed channel 3320.

[0283] The unlocking mechanism allows the weights 3324 and 3326 to be replaced or allows the insert 3322 to be re-inserted into the recessed channel 3320 in the flipped position and to adjust the clubhead's GC and MOI. The insert 3322 may include a pair of stops 3340 that engage with the end 3336 of the locking member 3334 to help bend the locking member 3334 in the unlocking mechanism. In this example, the weight assembly 3304 may be substantially symmetrical in both the toe-heel and bottom-crown directions, allowing the insert 3322 to be used to reposition the weights 3324 and 3326 within the body 3306. Additionally, the shape and size of the recessed channel 3320 allow the locking member 3334 to move as described herein.

[0284] Figure 97 This is a bottom view of the bottom 3402 of the golf club head 3400, which has another weight component 3404. Figure 98 It is in a locked structure and along Figure 97 A perspective sectional view of the golf club head at 340°, taken from line 97-97. Figure 99 It is in the unlocked structure and along Figure 97Another perspective sectional view of the golf club head 3400, taken from line 97-97. Also refer to... Figures 97 to 99 The golf club head 3400 is a fairway metal type golf club head having a body 3406 including a striking face 3408 having a lower edge 3410 and an upper edge 3412 extending between a toe portion 3414 and a heel portion 3416. A pommel 3402 extends from the lower edge 3410 on the underside of the club head 3400, and a crown portion 3418 extends from the upper edge 3412 on the top of the club head 3400. The pommel 3402, the striking face 3408, and the crown portion 3418 are joined together to define an outer surface 3420 of the body 3406, wherein an internal cavity 3422 is formed within the body 3406. A neck 3424 is located at the heel portion 3416 and is configured to attach to the shaft (not shown). The components of the fairway metal golf club head 3400 (e.g., sole, striking face, crown, neck, etc.) function similarly to those described above. The body 3406 can be formed into any type of club head as required or needed, such as a metal wood club head, an iron club head, or a hybrid club head. Furthermore, the features of the weight assembly 3404 described below can be additionally or alternatively used in any type of club head described herein as required or needed.

[0285] In this example, a recessed channel 3426 is defined within the bottom 3402 of the body 3406 of the clubhead 3400. The channel 3426 extends in the direction of the toe 3414-heel 3416, allowing adjustment of the clubhead's CG and MOI for right-to-left yaw. The weight assembly 3404 includes a slidable weight 3428 at least partially disposed within the channel 3426 and configured to slide therein; a cover 3430 at least partially extending above the channel 3426 and adapted to releasably secure the weight 3428 to the channel 3426; and a fastener 3432 configured to engage the cover 3430 to the body 3406. The fastener 3432 indirectly holds the weight 3428 within the recessed channel 3426 via the cover 3430, allowing the weight 3428 to be used for adjusting the clubhead's CG and MOI. In this example, the weight assembly 3404 and the recessed channel 3426 are located at the front of the golf club head 3400.

[0286] Similar to the example described above, the counterweight assembly 3404 is configured to move between at least two locations via fastener 3432, for example, Figure 98 The locking structure shown and Figure 99The unlocking configuration is shown. In the locking configuration, the cover 3430 is at least partially disposed in a fixed position within a recessed channel 3426, and the weight 3428 is fixed within the channel 3426 in a manner that restricts its movement. When the weight assembly 3404 is in the locking configuration, the weight 3428 is fully disposed within the channel 3426, and no part of the weight 3428 extends above the outer surface 3420 of the body 3406. Because the weight 3428 is fully disposed within the recessed channel 3426 and is at least aligned with or below the outer surface 3420 of the body 3406, the smoothness of the outer surface 3420 of the clubhead 3400 is maintained to promote good ground interaction. In the unlocking configuration, the fastener 3432 allows the cover 3430 to move toward a raised position along the fastener axis, such that the weight 3428 is released and can slide relative to the cover 3430 and the body 3406. The fastener 3432 is attached to the cover 3430 by a retaining clip 3433. The retaining clip 3433 is configured to engage the fastener 3432 to the cover 3430 such that the fastener 3432 can rotate about a fastener axis and relative to the cover 3430; however, the fastener 3432 and the cover 3430 are coupled together to allow corresponding linear movement along the fastener axis. In one aspect, the retaining clip 3433 includes a locking washer. In this example, the cover 3430 includes a retaining rib 3434 configured to slidably engage with a slit 3435 defined in the counterweight 3428. The retaining rib 3434 improves the retaining force between the counterweight 3428 and the cover 3430 when the counterweight assembly 3404 moves between configurations. The retaining rib 3434 is described in more detail below.

[0287] Figure 100 This is another bottom view of the bottom 3402 of the golf club head 3400. For clarity, the weight assembly 3404 is not shown. Figures 97 to 99 (Shown in the image). The recessed channel 3426 is defined by a bottom track 3436 and two opposing sidewalls 3438, 3440. The first sidewall 3438 is adjacent to the striking surface 3408, and the second sidewall 3440 is adjacent to the rear of the bottom 3402. A nut 3442 is formed within the bottom 3402 of the body 3406 near the second sidewall 3440. The nut 3442 is configured to engage with a fastener 3432, such that the cover 3430 (both in the image)... Figures 97 to 99(As shown in the diagram) It is directly connected to the body 3406. Additionally, the recessed channel 3426 is defined by two opposing end walls 3444 and 3446. The toe end wall 3444 is located on the toe side of the clubhead 3400, and the heel end wall 3446 is located on the heel side of the clubhead 3400. In this example, no chamber or opening is defined at the end of the recessed channel 3426, and the cover 3430 has no corresponding protrusion. On one hand, the fastener 3432 is the only component of the counterweight assembly 3404 extending into the internal cavity of the body 3406, for example, via a nut 3442. This construction of the clubhead 3400 reduces the accumulation of dirt and debris within the channel 3426 and the body 3406.

[0288] The bottom track 3436 includes a plurality of bosses 3448 projecting into the channel 3426. In this example, there are five bosses 3448 equidistantly spaced in the toe-heel direction. The bosses 3448 are configured to engage in a locking configuration. Figure 98 The boss 3448 (as shown) selectively engages with the counterweight 3428, thereby helping to position and retain the counterweight 3428 within the recessed channel 3426 described herein. In this example, the boss 3448 may have a generally frustoconical shape. Additionally, the first sidewall 3438 includes a plurality of recesses 3450 corresponding to the plurality of bosses 3448. The recesses 3450 are configured to selectively engage with the counterweight 3428 in a locked configuration, thereby helping to position and retain the counterweight 3428 within the recessed channel 3426 described herein. In this example, there are five bosses 3448 and five recesses 3450, such that the counterweight 3428 can be selectively positioned in five predetermined locations. It should be understood that any other number of predetermined locations (e.g., three) may be used as required or needed.

[0289] Between the first sidewall 3438 and the end walls 3444, 3446, a recessed channel 3426 is defined by an inclined wall 3452. The inclined wall 3452 is formed at the end of the channel 3426 in the toe-heel direction. Since the protrusions and chambers have been removed from the counterweight assembly 3404 compared to the previous example, the inclined wall 3452 is configured to engage with and secure the end of the cover 3430 when in the locked configuration.

[0290] Figure 101 It is the cover 3430 and the counterweight component 3404 (in Figures 97 to 99 The inner surface view of the counterweight 3428 is shown in the figure. Figure 102 This is a side view of the cover 3430 and the counterweight 3428. Also refer to... Figure 101 and Figure 102The cover 3430 has a first end 3454 and an opposing second end 3456. A notch 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 notch 3458 is defined at least by an outer wall 3460 forming the outer surface of the cover 3430 and a side wall 3462 of the cover 3430. The notch 3458 is sized and shaped to at least partially receive a counterweight 3428 and allow the counterweight 3428 to slide therein. End walls 3464 are defined at both the first end 3454 and the second end 3456, defining the ends of the notch 3458. A fastener receiver 3466 is disposed on the cover 3430 opposite to the notch 3458 and is configured to support a fastener 3432 at an eyelet 3468. Figures 97 to 99 (As shown). Fastener 3432 attaches the cover 3430 to the body of the clubhead at fastener receiver 3466.

[0291] A retaining rib 3434 protrudes from the outer wall 3460 within a slot 3458 and extends elongatedly in a direction between the first end 3454 and the second end 3456 of the cover 3430. The retaining rib 3434 is configured to engage the counterweight 3428 to improve the retaining force between the counterweight 3428 and the cover 3430. The shape and dimensions of the retaining rib 3434 are configured such that it is at least partially received in the slot 3435 of the counterweight 3428. Figures 98 to 99 (As shown). The engagement between the counterweight 3428 and the cover 3430 via the retaining rib 3434 allows the counterweight 3428 to move together with the cover 3430 between the locking and unlocking configurations, and allows the counterweight 3428 to be slidably repositioned when in the unlocked configuration. In this example, the retaining rib 3434 is discontinuous in the elongation direction, allowing the counterweight 3428 to be completely removed from the counterweight assembly as required or needed.

[0292] In this example, the retaining rib 3434 may comprise two discrete portions, a first rib 3470 and a second rib 3472, separated by a gap 3474, which is configured to allow the counterweight 3428 to be at least partially removably received within the slot 3458. Figure 101As shown, retaining rib 3434 is disposed near the distal end of outer wall 3460 and on the side of cover 3430 opposite to fastener receiver 3466. Therefore, retaining rib 3434 is spaced 3476 from sidewall 3462 of cover 3430. Retaining rib 3434 extends from each end wall 3464, and gap 3474 is disposed near the second end 3456 of cover 3430. Alternatively, gap 3474 may be disposed near the first end 3454 of cover 3430 or near the midpoint of cover 3430. In other aspects, gap 3474 may be disposed at one end wall 3464 such that retaining rib 3434 extends only from one end wall 3464, or more than one gap 3474 may exist within retaining rib 3434. In yet another example, two or more parallel retaining ribs 3434 may be used as required or needed.

[0293] The cover 3430 has an outer surface 3478 configured to align with the outer surface of the clubhead when in a locked configuration, and a recessed channel 3426 facing the clubhead. Figure 100 The opposing inner surfaces 3480 (as shown). The thickness 3482 of the cover 3430 in a direction substantially parallel to the fastener axis of the fastener 3432 is defined between the outer surface 3478 and the inner surface 3480. Figures 97 to 99 (As shown). The thickness 3482 of the cover 3430 at the end wall 3464 is substantially equal to the thickness 3482 of the cover 3430 at the midpoint of the slot 3458 between the first end 3454 and the second end 3456. Therefore, the end wall 3464 of the cover 3430 has no protrusions and engages directly with the recessed channel 3426 of the clubhead.

[0294] In counterweight 3428 and slit 3435 ( Figures 98 to 99 At least one hollow portion 3484 is defined in the opposing surfaces (as shown). The size and shape of the hollow portion 3484 are configured to engage with a boss 3448 disposed within the channel 3426 (both within...). Figure 100 (As shown in the illustration). In this example, the hollow portion 3484 includes a fully defined hollow portion 3484 and two partially defined hollow portions 3484 located on the sides of the fully defined hollow portion 3484. As shown in the illustrated example, this configuration allows for the use of a more slender counterweight 3428 while accommodating an increase in the number of counterweight positioning locations, for example, five.

[0295] Figure 103 This is another inner surface view of cover 3430. Figure 104 It is along Figure 103 A cross-sectional view of the covering 3430, taken from line 104-104. Also refer to... Figure 103 and Figure 104Some components have been described above and therefore need not be described further. The slot 3458 is formed by an outer wall 3460 and a side wall 3462. A retaining rib 3434 is disposed near the distal end of the outer wall 3460. A frame 3486 extends from the distal end of the side wall 3462 and is configured to at least partially support the counterweight 3428. Figures 101 to 102 (As shown). The retaining rib 3434 and the frame 3486 extend in substantially orthogonal directions. In this example, the retaining rib 3434 has a generally square cross-section. It should be understood that the retaining rib 3434 may have any other cross-sectional shape as required or necessary.

[0296] In this example, the notch 3458 has a length of 3488, which is defined between the end walls 3464 at the first and second ends of the cover 3430. The gap 3474 of the retaining rib 3434 also has a length of 3490, which is defined between the two portions of the rib. In one example, the length 3488 of the notch 3458 is approximately two to four times the length 3490 of the gap 3474. In another aspect, the length 3488 of the notch 3458 is approximately three times the length 3490 of the gap 3474. Figure 103 As shown, the retaining rib 3434 has an arcuate shape in the plan view, which corresponds to the elongated shape of the slot 3458 defined within the cover 3430.

[0297] The inner surface of the end wall 3464 at each end of the cover 3430 is aligned with the inner surface of the side wall 3462, such that the end wall 3464 is directly aligned with the recessed channel 3426. Figure 100 As shown, the cover 3430 is joined without using protrusions. Each end of the cover 3430 also includes an inclined wall 3452 corresponding to the channel 3426. Figure 100 The chamfer 3492 (as shown) allows the end of the cover to be securely engaged with the clubhead in the locking mechanism and reduces the rattling of the counterweight within it.

[0298] Although specific embodiments and aspects are described herein and specific examples are provided, the scope of this technology is not limited to those specific embodiments and examples. For example, although many current examples have been depicted, particularly for use with driver heads, fairway metal clubs, and irons, any of this technology can be applied to any metal wood golf club, fairway metal golf club, or wood golf club, iron golf club, or hybrid golf club. Furthermore, each of the above examples can be combined with another example, and / or one or more features of some examples can be combined with other examples. Those skilled in the art will recognize other embodiments or modifications within the scope and spirit of this technology. Therefore, specific structures, actions, or media are disclosed only in the form of illustrative embodiments. Additionally, if the limits of the terms "about," "substantially," or "approximately" used in the appended claims are not clear to those skilled in the art from the foregoing description, these terms should be interpreted as within ten percent of the stated value. The scope of this technology is defined by the appended claims and any equivalents thereof.

Claims

1. A golf club head, comprising: A main body with an outer surface; A recessed channel defined in the outer surface of the body; as well as The counterweight assembly includes: A counterweight is at least partially disposed within the recessed channel and configured to slide therein; A cover suitable for releasably securing the counterweight to the recessed channel, the cover comprising: The first end and the opposite second end; A slot extending at least partially between the first end and the second end, the slot being formed by at least two walls of the cover, and sized and shaped to at least partially receive the counterweight and allow the counterweight to slide therein, wherein one or more of the at least two walls have retaining ribs extending therefrom, the retaining ribs being elongated in a direction between the first end and the second end and being discontinuous in the elongation direction; and Fastener receiver disposed opposite to the slot; and Fasteners that attach the cover to the body at the fastener receiver, wherein the fasteners are configured to move the cover between at least two positions, namely a first position and a second position, in the first position the counterweight can selectively slide relative to the body, while in the second position the counterweight is fixed relative to the body.

2. The golf club head of claim 1, wherein, The retaining ribs include a first rib and a second rib separated by a gap, the gap being configured to allow the counterweight to be received at least partially within the slot.

3. The golf club head according to claim 2, wherein, The gap is located near the first end of the covering.

4. The golf club head according to claim 1, wherein, A slit is formed in the counterweight, wherein the slit is slidably engaged with the retaining rib.

5. The golf club head according to claim 1, wherein, The retaining ribs extend from the outer wall of at least two walls of the covering.

6. The golf club head according to claim 5, wherein, The retaining rib is located near the distal end of the outer wall.

7. The golf club head according to claim 1, wherein, Both the first and second ends of the cover are defined with end walls, and the end walls of the first and second ends have no protrusions.

8. A golf club head, comprising: A main body with an outer surface; A recessed channel defined in the outer surface of the body; as well as The counterweight assembly includes: A counterweight is at least partially disposed within the recessed channel and configured to slide therein, wherein a slit is defined in the counterweight; A cover suitable for releasably securing the counterweight to the recessed channel, the cover comprising: The first end and the opposite second end; A slot extending at least partially between the first end and the second end, the slot being formed at least by the outer wall of the cover, wherein a retaining rib extends from the outer wall and is configured to slidably engage with the slit of the counterweight; and Fastener receiver disposed opposite to the slot; and Fasteners that attach the cover to the body at the fastener receiver, wherein the fasteners are configured to move the cover between at least two positions, namely a first position and a second position, in the first position the counterweight can selectively slide relative to the body, while in the second position the counterweight is fixed relative to the body.

9. The golf club head according to claim 8, wherein, The retaining ribs and the fastener receivers are located on opposite sides of the cover.

10. The golf club head according to claim 8, wherein, The retaining rib comprises at least two discrete parts.

11. The golf club head according to claim 8, wherein, At least one hollow portion is defined in the counterweight opposite to the slit.

12. The golf club head according to claim 11, wherein, The at least one hollow portion includes a hollow portion that is completely defined in the counterweight and a hollow portion that is partially defined in the counterweight.

13. The golf club head according to claim 8, wherein, The slot engages with the counterweight, causing the counterweight to move between the at least two positions as the cover moves.

14. The golf club head according to claim 8, wherein, The fastener is the only component of the counterweight assembly that extends into the internal cavity of the body.

15. The golf club head according to claim 1 or 8, wherein, The cover also includes an outer surface and an opposing inner surface, wherein an end wall is defined at both the first end and the second end, wherein the end wall of the first end and the end wall of the second end define the end of the slot, and wherein the thickness of the cover at the end wall between the outer surface and the inner surface is equal to the thickness of the cover at the midpoint of the slot between the outer surface and the inner surface.

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