JP6563502B2 - Golf club with hosel insert and related method - Google Patents

Description

(Cross-reference of related applications)
This application is based on US Provisional Patent Application No. 62 / 107,240 filed on January 23, 2015, and US Provisional Patent Application No. 62 / 254,081 filed on November 11, 2015. This is a continuation-in-part of US patent application Ser. No. 14 / 282,786, which claims benefit and is filed May 20, 2014. US patent application Ser. No. 14 / 282,786 is filed with (i) US patent application Ser. No. 13 / 795,653 filed on Mar. 12, 2013, and (ii) filed Mar. 24, 2012. No. 13 / 429,319, (iii) U.S. Patent Application No. 13 / 468,663, filed May 10, 2012, (iv) filed May 10, 2012 US patent application Ser. No. 13 / 468,675 and (v) US patent application Ser. No. 13 / 735,123 filed Jan. 7, 2013.

  US Patent Application No. 13 / 429,319 includes US Provisional Patent Application No. 61 / 590,232, filed January 24, 2012, and US Provisional Patent, filed August 31, 2011. Claims the benefit of application 61 / 529,880. In addition, U.S. Patent Application No. 13 / 468,663 and U.S. Patent Application No. 13 / 468,675 are partially continued applications of U.S. Patent Application No. 13 / 429,319, respectively. . Similarly, U.S. Patent Application No. 13 / 468,677 is a continuation of U.S. Patent Application No. 13 / 429,319.

  Meanwhile, US patent application No. 13 / 735,123 is filed on May 10, 2012, US patent application No. 13 / 468,663 filed on May 10, 2012, and US patent application filed on May 10, 2012. No. 13 / 468,675 and US patent application Ser. No. 13 / 468,677, filed May 10, 2015.

  US provisional patent application 62 / 107,240, US provisional patent application 62 / 254,081, US patent application 14 / 282,786, US patent application 13 / 795,653 U.S. Patent Application No. 13 / 429,319, U.S. Patent Application No. 13 / 468,663, U.S. Patent Application No. 13 / 468,675, U.S. Patent Application No. 13/735. , 123, U.S. Patent Application No. 13 / 468,677, U.S. Provisional Patent Application No. 61 / 590,232, and U.S. Provisional Patent Application No. 61 / 529,880, respectively, The entire contents of which are incorporated herein by reference.

  The present disclosure relates generally to sports equipment, and more specifically to golf coupling mechanisms and related methods.

  Some sports, such as golf, require equipment with features that can be selected or specially adapted to personal characteristics or preferences. For example, the recommended club shaft type, club head type, and / or club head loft or lie angle may vary based on individual characteristics such as skill, age, or height. However, once assembled, a golf club will typically have a fixed, unchangeable coupling mechanism between its golf club shaft and golf club head. Thus, when determining equipment suitable for an individual, a golf club with such a fixed coupling mechanism is unnecessary to test various combinations of club shaft, club head, loft angle and / or lie angle. Must be available to many. In addition, if a person's characteristics or preferences change, his golf equipment cannot be adjusted to accommodate such changes. The adjustable coupling mechanism may be configured to provide flexibility to set various features of such a golf club in a changeable manner, but lack of coupling in the coupling of the golf club head and golf club shaft or Instability can lead to stress concentration. In view of the above, further developments in golf coupling mechanisms and related methods will increase the usefulness and adjustability capabilities of golf clubs.

  The present disclosure may be better understood by reading the following detailed description of example embodiments, taken in conjunction with the accompanying figures.

1 shows a front perspective view of a golf club head having a golf coupling mechanism according to an example of the present disclosure. FIG. FIG. 2 shows a top perspective view of a golf club head having the golf coupling mechanism of FIG. 1. FIG. 3 shows the golf coupling mechanism with the shaft sleeve inserted into the shaft receiver, and shows a cross-sectional view of the golf club head taken along section line III-III in FIG. 2. FIG. 4 shows a sectional view of the golf club head and golf coupling mechanism along section line IV-IV in FIG. 2. FIG. 3 shows a side view of a shaft sleeve separated from a golf club head. FIG. 6 shows a section view of the shaft sleeve along section line VI-VI in FIG. 5. FIG. 6 shows a cross-sectional view of the shaft sleeve taken along section line VII-VII in FIG. 5. FIG. 2 shows a top view of the golf club head of FIG. 1 showing the shaft receiver from above with the shaft sleeve removed from the golf club head. FIG. 3 shows a side cross-sectional view of the golf club head of FIG. 1 with the shaft sleeve removed from the golf club head, taken along section line III-III of FIG. 2. FIG. 4 shows a side view of a portion of a sleeve coupler set of a shaft sleeve. FIG. 3 shows a side perspective view of a portion of a receiver coupler set of a shaft receiver. FIG. 11 shows a side view of a portion of a sleeve coupler set of shaft sleeves similar to the shaft sleeve of FIGS. 12 shows a side perspective view of a portion of a receiver coupler set of a shaft receiver similar to the shaft receiver of FIGS. 1-4, 8-9 and 11. FIG. FIG. 5 shows an upper cross-sectional view of the golf coupling mechanism of the first configuration as seen along the cross-sectional line XIV-XIV in FIG. 4. FIG. 5 shows an upper cross-sectional view of the golf coupling mechanism of the second configuration, as viewed along the cross-sectional line XIV-XIV in FIG. 4. FIG. 5 shows a top cross-sectional view of the third configuration of the golf coupling mechanism as seen at line XIV-XIV in FIG. 4 with the shaft sleeve removed from the golf coupling mechanism. FIG. 5 shows a top cross-sectional view of the fourth configuration of the golf coupling mechanism as seen in line XIV-XIV of FIG. 4 with the shaft sleeve removed from the golf coupling mechanism. 2 shows a flowchart of a method that may be used to provide, form, and / or manufacture a golf coupler mechanism in accordance with the present disclosure. A comparison of stagnant drag wake areas for each hosel of different golf club heads 1910 and 1920 is shown. FIG. 20 shows a drag chart as a function of open face angle for the hosel diameter of the golf club head of FIG. 1 shows a front perspective view of a golf club head having a golf coupling mechanism, according to one embodiment. FIG. FIG. 22 shows a side view of a shaft sleeve of a golf coupling mechanism of a golf club head separated from a golf club head according to the embodiment of FIG. FIG. 23 shows a cross-sectional view of the shaft sleeve along line XXIII-XXIII in FIG. 22 according to the embodiment of FIG. FIG. 22 shows a side view of the shaft sleeve body of the shaft sleeve separated from the shaft sleeve cap of the shaft sleeve according to the embodiment of FIG. 21; FIG. 22 shows a side view of the shaft sleeve cap separated from the shaft sleeve body according to the embodiment of FIG. 21; FIG. 22 shows an elevation view of the shaft sleeve cap separated from the shaft sleeve body, according to the embodiment of FIG. 2 shows a flowchart of a method according to one embodiment. 28 illustrates an exemplary operation for preparing a shaft sleeve, according to the embodiment of FIG. 1 shows a front perspective view of a golf club head having a golf coupling mechanism, according to one embodiment. FIG. FIG. 30 shows a side view of a shaft sleeve of a golf coupling mechanism of a golf club head separated from a golf club head according to the embodiment of FIG. 29. FIG. 30 shows a cross-sectional view of the shaft sleeve taken along line XXXIII-XXXIII in FIG. 30 according to the embodiment of FIG. FIG. 30 shows a side view of the shaft sleeve body of the shaft sleeve separated from the shaft sleeve cap of the shaft sleeve according to the embodiment of FIG. 29; FIG. 30 shows a side view of the shaft sleeve cap separated from the shaft sleeve body according to the embodiment of FIG. 29; FIG. 30 shows an upper angled view of the shaft sleeve cap separated from the shaft sleeve body, according to the embodiment of FIG. 29. FIG. 36 shows a cross-sectional view of the shaft sleeve cap along line XLVV-XLVV of FIG. 33B according to the embodiment of FIG. FIG. 30 shows a top view of the shaft sleeve cap separated from the shaft sleeve body according to the embodiment of FIG. 29; FIG. 30 shows a top view of the shaft sleeve body separated from the golf head according to the embodiment of FIG. 29; 2 shows a flowchart of a method according to one embodiment. FIG. 36 illustrates an exemplary operation for preparing a shaft sleeve, according to the embodiment of FIG.

  For simplicity and clarity of illustration, the drawings illustrate a general structure and descriptions and details of known features and techniques may be omitted to avoid unnecessarily obscuring the present disclosure. . In addition, elements in the drawings are not necessarily drawn to scale. For example, some dimensions of elements in the figures may be exaggerated relative to other elements to facilitate improved understanding of embodiments of the present disclosure. The same reference numbers in different drawings denote the same elements.

  Where there are terms such as “first”, “second”, “third”, “fourth”, etc. in the specification and claims, they are used to distinguish between similar elements. Not necessarily to indicate a particular continuous or time-series order. The terms used in this manner are such that the embodiments described herein are operable, for example, in an order other than the order illustrated or otherwise described herein. In particular, it should be understood that it is interchangeable under appropriate circumstances. Further, the terms “including” and “having” and any variations thereof are intended to include non-exclusive inclusions, and a process, method, system, article, device or apparatus including an enumeration of elements is not necessarily limited to these elements. And may include other elements that are not explicitly described or that are not unique to such processes, methods, systems, articles, devices, or apparatus.

  If there are terms such as “left”, “right”, “front”, “rear”, “upper”, “lower”, “upper”, “lower” etc. in this specification and claims, for explanation And is not necessarily for explaining the permanent relative position. The terminology used in this way is the orientation in which embodiments of the apparatus, methods and / or articles of manufacture described herein are illustrated or otherwise described herein, for example. It should be understood that it is interchangeable under appropriate circumstances so that it can operate in other orientations.

  Terms such as “couple”, “coupled”, “couples”, “coupled” are to be understood broadly and two or more elements may be mechanically or It should mean connecting in other ways. The bond (mechanical or otherwise) may be of any length of time, for example permanent or semi-permanent or momentarily.

  The absence of a word such as “removable” or “removable” in the vicinity of a word such as “coupled” does not mean that the target coupling or the like is removable or not removable. Absent.

  As defined herein, two or more elements are “integral” if they comprise the same component. As defined herein, two or more elements are “not integral” if each includes a different component.

  Some embodiments include a golf club head. The golf club head has a club head main body, the golf club head main body including a sole portion including a lower end portion of the sole, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, and a rear portion. And a front portion facing the rear portion, and a hosel. The front part has a striking surface. The golf club head also has a shaft sleeve that is insertable into the hosel and is configured to couple the golf club shaft with the hosel. The hosel may have a hosel hole configured to receive a shaft sleeve. On the other hand, the shaft sleeve has (i) a shaft hole configured to receive an end of the golf club shaft, (ii) an outer wall of the sleeve body, and at least one coupler on the outer wall of the sleeve body. And (iii) a shaft sleeve cap configured to be coupled to the shaft sleeve body. When the golf club head is in the address position with the shaft sleeve secured in the hosel, the shaft sleeve center of gravity may be located at a shaft sleeve CG vertical distance of about 46 millimeters or less relative to the bottom of the sole.

  In these or other embodiments, the shaft sleeve body may have an intermediate region, the shaft sleeve body may have a sleeve body wall, and the sleeve body wall may be about 0.020 inches intermediate in the intermediate region. It may have a region thickness.

  In these or other embodiments, the shaft sleeve body may have a coupler region, the shaft sleeve body may have a sleeve body wall, and the sleeve body wall may have a maximum thickness of the sleeve body wall in the coupler region. The coupler region thickness may vary from a minimum thickness to a sleeve body wall thickness, the sleeve body wall maximum thickness may be less than or equal to about 0.75 inches, and the sleeve body wall minimum thickness The thickness may be about 0.020 inches or more.

  In these or other embodiments, the hosel hole may have at least one receiver configured to engage the at least one coupler, and when the hosel hole receives the shaft sleeve, the at least one coupler is Engaging with at least one receiver may limit rotation of the shaft sleeve relative to the hosel.

  In these or other embodiments, the shaft sleeve cap may be removably coupled to the shaft sleeve body.

  In these or other embodiments, the at least one coupler may have a plurality of couplers, the plurality of couplers may have a first coupler and a second coupler, and the coupler length of the first coupler. The length may be different from the coupler length of the second coupler.

  In these or other embodiments, the at least one coupler may have a coupler length, and the coupler length may be greater than or equal to about 0.260 inches and less than or equal to about 0.38 inches.

  In these or other embodiments, the shaft sleeve body may have a receiving groove, the shaft sleeve cap may have a protrusion, and when the shaft sleeve body is coupled with the shaft sleeve cap, the receiving groove is It may be configured to receive the protrusion.

  In these or other embodiments, the shaft sleeve cap may have at least one slit and a cap wall, the at least one slit being configured to allow the cap wall to compress axially. Also good.

  In these or other embodiments, the shaft sleeve cap may have a cap hole and one or more ribs extending into the cap hole, once the shaft hole receives the end of the golf club shaft, 1 One or more ribs may center the golf club shaft within the shaft hole.

  In these or other embodiments, the shaft sleeve may have a shaft sleeve mass of about 4.5 grams, the shaft sleeve body may have a shaft sleeve body mass of about 4.1 grams or less, and The shaft sleeve cap may have a shaft sleeve cap mass of about 0.3 grams or more and about 1.0 grams or less.

  In these or other embodiments, the golf club head may have a fastener configured to couple the shaft sleeve to the hosel, the shaft sleeve cap coupled to the shaft sleeve body, and the fastener comprising the shaft sleeve. When secured to the hosel, the golf club head may have a post-assembly club head mass, and the post-assembly club head mass may be about 199 grams or less.

  In these or other embodiments, the golf club head may have a fastener configured to couple the shaft sleeve to the hosel, the shaft sleeve cap coupled to the shaft sleeve body, and the fastener comprising the shaft sleeve. When secured to the hosel, the golf club head may have a post-assembly club head mass, the shaft sleeve may have a shaft sleeve mass, and the ratio of the shaft sleeve mass to the post-assembly club head mass is It may be about 2.2% or less.

  In these or other embodiments, the golf club head may have a club head mass after disassembly, the shaft sleeve may have a shaft sleeve mass, and the ratio of the shaft sleeve mass to the club head mass after disassembly is about It may be 2.2% or less.

  In these or other embodiments, the shaft sleeve CG vertical distance may be greater than or equal to about 45.3 millimeters relative to the bottom of the sole.

  In these or other embodiments, when the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve height that is greater than or equal to about 1.78 inches and less than or equal to about 1.82 inches. It may be. When the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve body height, and the shaft sleeve body height may be greater than or equal to about 1.529 inches and less than or equal to about 1.569 inches; And / or when the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve cap height, the shaft sleeve cap height being no less than about 0.46 inches and no more than about 0.50 inches. Also good.

  Further embodiments include a golf club head. The golf club head has a club head main body, the golf club head main body including a sole portion including a lower end portion of the sole, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, and a rear portion. And a front portion facing the rear portion, and a hosel. The front part has a striking surface. The golf club head also has a shaft sleeve that is insertable into the hosel and is configured to couple the golf club shaft with the hosel. On the other hand, the hosel may have a hosel hole configured to receive the shaft sleeve. On the other hand, the shaft sleeve has (i) a shaft hole configured to receive an end of the golf club shaft, (ii) a sleeve body outer wall, and at least one coupler on the sleeve body outer wall. And (iii) a shaft sleeve cap configured to be coupled to the shaft sleeve body. The shaft sleeve body may further include an intermediate region and a sleeve body wall. The shaft sleeve may also have a shaft sleeve mass of about 4.3 grams. In these embodiments, the shaft sleeve body may have a shaft sleeve body mass of about 3.8 grams or less. The shaft sleeve cap can also have a cap hole and one or more ribs that enter the cap hole, and when the shaft hole receives the end of the golf club shaft, the one or more ribs can be The shaft can be centered within the shaft hole. In various embodiments, the shaft sleeve cap may be removably coupled to the shaft sleeve body. Furthermore, when the golf club head is in the address position with the shaft sleeve fixed in the hosel, the shaft sleeve CG has a shaft sleeve center of gravity of about 43.5 mm or more and about 47 mm or less with respect to the lower end of the sole. It may be located at a vertical distance.

  Other embodiments have a method. The method may include providing a shaft sleeve. On the other hand, the step of preparing the shaft sleeve may include a step of preparing a shaft sleeve body and a step of preparing a shaft sleeve cap. The shaft sleeve can also be configured to be insertable into the hosel of the golf club head and can be configured to couple the golf club shaft with the hosel. Similarly, the golf club head can include a golf club head main body and a hosel. The golf club head main body includes a sole portion including a lower end portion of the sole, a top portion facing the sole portion, a heel portion, and a heel portion. You may have a toe part which opposes, a rear part, and a front part which counters a rear part. The front part may have a striking surface. Furthermore, the hosel may have a hosel hole configured to receive a shaft sleeve. The shaft sleeve also includes: (i) a shaft hole configured to receive an end of a golf club shaft; (ii) a sleeve body outer wall; and at least one coupler on the sleeve body outer wall. And (iii) a shaft sleeve cap configured to be coupled to the shaft sleeve body. When the golf club head is in the address position with the shaft sleeve secured in the hosel, the shaft sleeve center of gravity may be located at a shaft sleeve CG vertical distance of about 46 millimeters or less relative to the bottom of the sole.

  Other examples and embodiments are further disclosed herein. Such examples and embodiments may be described in the figures, the claims and / or herein.

  Referring to the drawings, FIG. 1 shows a front perspective view of a golf club head 101 having a golf coupling mechanism 1000 according to an example of the present disclosure. FIG. 2 shows a top perspective view of a golf club head 101 having a golf coupling mechanism 1000. FIG. 3 shows a cross-sectional view of the golf club head 101 along line III-III in FIG. 2 showing the golf coupling mechanism 1000 with the shaft sleeve 1100 inserted into the shaft receiver 3200. 4 shows a cross-sectional view of golf club head 101 and golf coupling mechanism 1000 along line IV-IV in FIG.

  In this embodiment, the golf coupling mechanism 1000 includes a shaft sleeve 1100 that is configured to be coupled to an end of a golf club shaft, such as the golf club shaft 102 (FIG. 1). FIG. 5 shows a side view of the shaft sleeve 1100 separated from the golf club head 101 (FIG. 1). FIG. 6 shows a cross-sectional view of shaft sleeve 1100 along line VI-VI in FIG. In this embodiment, shaft sleeve 1100 has a shaft hole 3120 configured to receive the end of golf club shaft 102. The shaft sleeve 1100 also has a sleeve shaft 5150 extending from the sleeve upper end 1191 to the sleeve lower end 3192 along the longitudinal center line of the shaft sleeve 1100. In this embodiment, the sleeve outer wall 3130 is a right angle cylinder such that at least a portion of the sleeve outer wall 3130 is substantially parallel to the sleeve axis 5150, and the sleeve outer wall 3130 is a shaft hole in the sleeve outer wall 3130. It borders on 3120. In other words, in this embodiment, the sleeve shaft 5150 is the center of the sleeve outer wall 3130. In this embodiment, shaft hole 3120 extends coaxially with shaft hole axis 6150 and is angled with respect to sleeve axis 5150 and is therefore non-coaxial with sleeve axis 5150. In this embodiment, the shaft hole shaft 6150 forms an angle of about 0.5 degrees with respect to the sleeve shaft 5150. Such an angle is about 0.2 degrees to about 4 degrees with respect to the sleeve shaft 5150. There may be examples such as Therefore, in this embodiment, the shaft hole 3210 and the sleeve outer wall 3130 are not concentric. However, there may be other embodiments in which the shaft bore axis 6150 may be substantially collinear with the sleeve axis 5150 such that the sleeve outer wall 3130 and the shaft hole 3120 may be substantially concentric.

  The shaft sleeve 1100 has a sleeve coupler set 3110 having one or more couplers protruding from the sleeve outer wall 3130. FIG. 7 shows a cross-sectional view of the shaft sleeve 1100 with the sleeve coupler set 3110 cut along line VII-VII in FIG. 3-7 show different views of the sleeve coupler set 3110 protruding from the sleeve outer wall 3130. In this embodiment, the sleeve coupler set 3110 has sleeve couplers 3111, 3112, 5116 and 7115 protruding from the sleeve outer wall 3130. The sleeve coupler 3112 is a sleeve coupler along the outer peripheral portion 7191 of the sleeve outer wall 3130. The sleeve coupler 7115 is disposed opposite to the sleeve coupler 5116. As can be seen from FIG. 7, in the present embodiment, the sleeve coupler set 3110 forms alternating concave and convex surfaces on the outer peripheral portion 7191.

  The sleeve coupler of sleeve coupler set 3110 has an arcuate surface configured to limit the rotation of shaft sleeve 1100 relative to golf club head 101 when shaft sleeve 1100 is inserted and secured to shaft receiver 3200. For example, as can be seen in FIGS. 3, 5 and 7, (a) the sleeve coupler 3111 has an arcuate surface 3151 that is curved over the entire outer region of the sleeve coupler 3111, and (b) the sleeve coupler 3112 is (C) sleeve coupler 5116 has an arcuate surface 5156 curved over the entire outer region of sleeve coupler 5116; and (d) sleeve coupler. 7115 has an arcuate surface 7155 that is curved over the entire outer region of the sleeve coupler 7115.

  The golf coupling mechanism 1000 also has a shaft receiver 3200 configured to receive a shaft sleeve 1100 as seen in FIGS. FIG. 8 is a top view of the golf club head 101 with the shaft sleeve 1100 removed from the golf club head 101 showing the shaft receiver 3200 from above. FIG. 9 shows a cross-sectional side view of the golf club head 101 showing a side cross-section of the shaft receiver 3200 along line III-III in FIG. 2 with the shaft sleeve 1100 removed from the golf club head 101.

  In this embodiment, the shaft receiver 3200 is integrated with the hosel 1015 of the club head 101, but the shaft receiver 3200 is separate from the hosel 1015, eg, adhesive, thread mechanism and / or bolt or rivet. There may be embodiments that may be coupled to the hosel 1015 by one or more fastening methods, such as In the same or other embodiments, the terms hosel and shaft receiver may be used interchangeably. There may be embodiments where the golf club head 101 may have a head hole in its crown or top rather than the hosel 1015. In such an embodiment, the shaft receiver 3200 may also be part of such a head hole or coupled to such a head hole.

  The shaft sleeve 1100 is configured to be inserted into the shaft receiver 3200 and may be subdivided into several parts. For example, the shaft sleeve 1100 has a sleeve insert 3160 bounded by a sleeve outer wall 3130 and is configured to be within the shaft receiver 3200 when the shaft sleeve 1100 is secured within the shaft receiver 3200. . In this embodiment, the shaft sleeve 1100 also has a sleeve top portion 3170 configured to remain outside the shaft receiver 3200 when the shaft sleeve 1100 is secured within the shaft receiver 3200. However, there may be other examples having a shaft sleeve that is configured to be inserted into the shaft receiver 3200 without the sleeve top portion 3170 and / or similar to the shaft sleeve 1100.

  The shaft receiver 3200 has a hosel outer wall 3240 and, when inserted into the shaft receiver 3200, has a receiver inner wall 3230 configured to contact the sleeve insertion portion 3160 and the sleeve outer wall 3130 of the shaft sleeve 1100. The shaft receiver 3200 also has a receiver coupler set 3210 configured to engage the coupler set 3110 of the shaft sleeve 1100 and limit rotation of the shaft sleeve 1100 relative to the shaft receiver 3200. As shown in FIG. 8, in this embodiment, the receiver coupler set 3210 has receiver couplers 3213, 3214, 8217, and 8218 recessed in the receiver inner wall 3230, and the receiver coupler 3213 faces the receiver coupler 3214. Receiver coupler 8218 faces receiver coupler 8217.

  The receiver couplers of receiver coupler set 3210 within shaft receiver 3200 have an arcuate surface that is complementary to the arcuate surface of sleeve coupler set 3110 of shaft sleeve 1100. For example, (a) the receiver coupler 3213 has an arcuate surface 3253 that is curved over the entire interior region of the receiver coupler 3213 (FIG. 8), and the arcuate surface 3253 of the receiver coupler 3213 is the arcuate surface 3151 of the sleeve coupler 3111. And (b) the receiver coupler 3214 has an arcuate surface 3254 that is curved over the entire interior region of the receiver coupler 3214 (FIG. 8), and the arcuate surface 3254 of the receiver coupler 3214 is Complementary to the arcuate surface 3152 of the sleeve coupler 3112 (FIG. 7), (c) the receiver coupler 8217 has an arcuate surface 8257 (FIG. 8) that is curved over the interior region of the receiver coupler 8217 (FIG. 8). The arcuate surface 8257 of the coupler 8217 is complementary to the arcuate surface 7155 of the sleeve coupler 7115 (FIG. 7), (d Receiver coupler 8218 has an arcuate surface 8258 that is curved throughout the interior region of receiver coupler 8218 (FIG. 8), and arcuate surface 8258 of receiver coupler 8218 is complementary to arcuate surface 5156 of sleeve coupler 5116. (FIG. 7).

  In this embodiment, the arcuate surface of the sleeve coupler set 3110 and the arcuate surface of the receiver coupler set 3210 are curved throughout their respective sleeve coupler and receiver coupler. FIG. 10 shows a side view of a portion of shaft sleeve 1100 and sleeve coupler set 3110. FIG. 11 shows a side perspective view of a portion of shaft receiver 3200 and receiver coupler set 3210. 7 and 10, in this embodiment, the arcuate surface 5156 of the sleeve coupler 5116 has a horizontal radius of curvature 7176, the arcuate surface 3151 of the sleeve coupler 3111 has a horizontal radius of curvature 7171, The arcuate surface 3152 of the sleeve coupler 3112 has a horizontal radius of curvature 7172 and the arcuate surface 7155 of the sleeve coupler 7115 has a horizontal radius of curvature 7175. Further, in this embodiment, the arcuate surface of the sleeve coupler set 3110 has a vertical tapering whose thickness decreases toward the sleeve lower end portion 3192 of the shaft sleeve 1100 and toward the sleeve shaft 5150 (FIGS. 5 to 6). ). For example, as seen in FIG. 10, the arcuate surface 5156 of the sleeve coupler 5116 has a vertical taper ring 10186, the arcuate surface 3151 of the sleeve coupler 3111 has a vertical taper ring 10181, and the arcuate surface of the sleeve coupler 3112 The surface 3152 has a vertical tapering 10182. Although not shown in FIG. 10, the arcuate surface 7155 of the sleeve coupler 7115 also has a vertical tapering similar to the vertical tapering 10186 of the sleeve coupler 5116.

  With respect to the receiver coupler set 3210 of the shaft receiver 3200, as seen in FIGS. 8 and 11, in this embodiment, the arcuate surface 8258 of the receiver coupler 8218 is the horizontal radius of curvature 7176 of the sleeve coupler 5116 (FIGS. 7 and 10). ), And the arcuate surface 3253 of the receiver coupler 3213 has a horizontal curvature radius 8273 that is complementary to the horizontal radius of curvature 7171 (FIG. 7) of the sleeve coupler 3111, and the receiver The arcuate surface 3254 of the coupler 3214 has a horizontal radius of curvature 8274 that is complementary to the horizontal radius of curvature 7172 of the sleeve coupler 3112 (FIG. 7), and the arcuate surface 8257 of the receiver coupler 8217 is the horizontal curvature of the sleeve coupler 7115. It has a horizontal radius of curvature 8277 that is complementary to radius 7175 (FIG. 7).

  In this embodiment, the arcuate surface of the receiver coupler set 3210 has a vertical taper complementary to the vertical taper of the arcuate surface of the sleeve coupler set 3110. For example, as seen in FIG. 11, the arcuate surface 8258 of the receiver coupler 8218 has a vertical taper ring 11288 complementary to the vertical taper ring 10186 of the sleeve coupler 5116 (FIG. 10), and the arcuate surface of the receiver coupler 3213. The surface 3253 has a vertical taper ring 11283 that is complementary to the vertical taper ring 10181 (FIG. 10) of the sleeve coupler 3111, and the arcuate surface 3254 of the receiver coupler 3214 is a vertical taper ring 10182 (FIG. 10) of the sleeve coupler 3112. And a vertical taper ring 11284 complementary to. Although not shown in FIG. 11, the arcuate surface 8257 of the receiver coupler 8217 is similar to the vertical tapering 11288 of the receiver coupler 8218 and also has a vertical taper that is complementary to the vertical taper of the sleeve coupler 7115.

  In this embodiment, the vertical tapering of the arcuate surface of the sleeve coupler set 3110 is substantially linear, as seen in the profile view of the vertical taperings 10181 and 10182 of the sleeve couplers 3111 and 3112 of FIG. Decreases linearly. Similarly, as seen in the profile view of vertical taperings 11283 and 11284 of receiver couplers 3213 and 3214 in FIG. 11, the vertical tapering of the arcuate surface of receiver coupler set 3210 is substantially linear. In the same or other examples, the substantially linear vertical tapering of the arcuate surface of sleeve coupler set 3110 and the arcuate surface of receiver coupler set 3210 includes a large or infinite vertical radius of curvature that is substantially straight. May be considered.

  However, other embodiments where the vertical tapering of the sleeve coupler and / or receiver coupler need not be linear may be possible. FIG. 12 shows a side view of a portion of a shaft sleeve 12100 having a sleeve coupler set 12110. FIG. 13 shows a side perspective sectional view of a shaft receiver 13200 having a receiver coupler set 13210.

  The shaft sleeve 12100 may be similar to the shaft sleeve 1100 (FIGS. 1-7, 10), and the shaft receiver 13200 may be similar to the shaft receiver 3200 (FIGS. 3-4, 8, 10). . However, the sleeve coupler set 12110 differs from the sleeve coupler set 3110 by having a non-linear vertical taper ring. For example, sleeve coupler set 12110 may have curved vertical taperings 12186, 12181 and 12182 rather than linear and may have a corresponding vertical radius of curvature. Similarly, receiver coupler set 13210 has curved vertical taperings 13288, 13283, and 13284, rather than linear, and has a corresponding vertical radius of curvature that is complementary to the radius of curvature of sleeve coupler set 12110. Accordingly, the sleeve coupler of sleeve coupler set 12110 and the receiver coupler of receiver coupler set 13120 are respectively curved horizontally and vertically throughout their corresponding surface areas. For example, any horizontal line tangent to any point on the entire surface of the sleeve coupler 12116 will not tangent to any other point on the entire surface of the sleeve coupler 12116. In the same or other embodiments, the entire surface of each sleeve coupler of the sleeve coupler set 12110 and the entire surface of each receiver coupler of the receiver coupler set 13120 are curved all over and in all directions.

  Different sleeve couplers and receiver couplers of the present disclosure may have curvatures within corresponding specific ranges. For example, with reference to FIGS. 7 and 10, the horizontal curvature radii 7171, 7172, 7175 and 7176 of the sleeve coupler set 3110 are about 0.175 inches (4.45 millimeters (mm)), respectively, but about 0.1 inches. There may be embodiments that may range from (2.54 mm) to about 0.225 inches (5.715 mm). 8 and 11, the horizontal radii of curvature 8273, 8274, 8277, and 8278 of the receiver coupler set 3210 are the same or similar to complementary to the horizontal radii of curvature 7171, 7172, 7175, and 7176 (FIGS. 7 and 10), respectively. Also good. In addition, the horizontal radius of curvature of the sleeve coupler set 12110 and the receiver coupler set 13210 in the embodiment of FIGS. 12-13 is also related to the embodiment of the sleeve coupler set 3110 and / or the receiver coupler set 3210 of FIGS. It may be similar to that described above.

  As described above, in the embodiment of FIGS. 1-11, the vertical tapering of sleeve coupler set 3110 (FIG. 10) and receiver coupler set 3210 (FIG. 11) can include a nearly infinite vertical radius of curvature; Thereby, it becomes a substantially straight line. In the embodiment of FIGS. 12-13, the vertical taper of sleeve coupler set 12110 (FIG. 12) and receiver coupler set 13210 (FIG. 13) includes a more pronounced vertical radius of curvature. As an example, the vertical taper ring 12186 of the sleeve coupler 12116 (FIG. 12) has a vertical radius of curvature of about 0.8 inch (20.32 mm), but about 0.4 inch (10.16 mm) to 2 inch (50. There may be embodiments that may be in the range of 8 mm). The vertical radius of curvature of other similar portions of the sleeve coupler set 12110 may also be within the same range as described for the vertical taper ring 12186. In addition, the vertical radius of curvature of the receiver coupler set 13210 (FIG. 13) may be the same or similar complementary to the vertical radius of curvature described for the sleeve coupler set 12110 (FIG. 12).

  In some examples, the arcuate surface of the sleeve coupler and / or receiver coupler may include a portion of the geometric structure. For example, the arcuate surface of sleeve coupler 12116 (FIG. 12) may include a quadric surface, and the arcuate surface of receiver coupler 13218 (FIG. 13) has a quadric surface that is complementary to the arcuate surface of sleeve coupler 12116. May be included. In such an example, the quadratic surfaces of the sleeve coupler 12116 and the receiver coupler 13218 may include, for example, a portion of a paraboloid or a portion of a hyperboloid. In some cases, the secondary arcuate surface may have a sleeve coupler and a receiver coupler that may include a portion of a degenerate quadric surface, such as a portion of a conical surface. Such an example may be similar to that of FIGS. 10-11 for the sleeve coupler set 3110 and the receiver coupler set 3200.

  10-11 and 12-13, the sleeve coupler arcuate surface of sleeve coupler set 3110 (FIG. 10) and / or 12110 (FIG. 12), and receiver coupler set 3210 (FIG. 11) and The arcuate surface of the receiver coupler of 13210 (FIG. 13) may be configured to be continuously curved, eg, without any inflection points. In the same or other embodiments, such arcuate surfaces may also be configured to be edgeless (except for their respective perimeters). For example, the total surface area of the sleeve coupler 5116 (FIG. 10) is edgeless with respect to any portion of its total surface area within its outer periphery. In addition, the total surface area of the receiver coupler 8218 (FIG. 11) is also borderless for every part of its total surface area within its outer periphery. Similar borderless characteristics are also common to sleeve coupler 12110 (FIG. 12) and receiver coupler 13218 (FIG. 13). Due to the above characteristics, when the sleeve coupler is fixed with respect to the receiver coupler, the contact area can be maximized, limiting the rotation of the shaft sleeve relative to its corresponding shaft receiver.

  As seen in FIGS. 3 to 7 and 10, the sleeve coupler set 3110 protrudes from the upper portion of the sleeve outer wall 3130. Similarly, as seen in FIGS. 3 to 4, 8 to 9, and 11, the receiver coupler set 3210 is recessed in the upper portion of the receiver inner wall 3230. However, there may be other embodiments where the sleeve coupler set 3110 and the receiver coupler set 3210 may be located elsewhere. For example, the sleeve coupler set 3110 and the receiver coupler set 3210 may be located at or toward the lower portion or middle portion of the shaft sleeve 1100 and shaft receiver 3200, respectively. In the same or other embodiments, the sleeve coupler set 3110 and the receiver coupler set 3210 are reversed so that the sleeve coupler set 3110 is recessed in the sleeve outer wall 3130 and the receiver coupler set 3210 protrudes from the receiver inner wall 3230. May be. The apparatus, methods and articles to be manufactured described herein are not limited in this regard.

  As seen in the cross-sectional view shown in FIG. 3, the golf coupling mechanism 1000 also includes a fastening fastener 3400 configured to secure the shaft sleeve 1100 to the shaft receiver 3200. In the present embodiment, the fixing fastener 3400 has a bolt configured to be coupled to the sleeve lower end portion 3192 of the shaft sleeve 1100 via a passage under the shaft receiver 3200. The fastening fastener 3400 is configured to be coupled to the sleeve lower end portion 3192 by a screw thread mechanism. As the thread mechanism is tightened, the fastening fastener 3400 is configured to pull the shaft sleeve 1100 toward the lower end of the shaft receiver 3200 so that the arcuate surface of the sleeve coupler set 3110 is connected to the receiver coupler. Secure against arcuate surface of set 3210.

  In an example such as this embodiment, the total total mass of the body of the golf club head 101, the shaft sleeve 1100, and the fastening fastener 3400 may be referred to as a post-assembled club head mass, whereas the shaft sleeve 1100 and the fastening fastener. The mass of the body of the golf club head 101 without 3400 may be referred to as the club head mass after disassembly.

  In this embodiment, the fastening fastener 3400 has a holding element 3450. The retaining element 3450 is coupled to the fastening fastener 3400 to limit or at least prevent it from being completely removed from the shaft receiver 3200 when the fastening fastener 3400 is detached from the shaft sleeve 1100. The retaining element 3450 includes a washer disposed within the shaft receiver 3200 and coupled around a thread of the fastening fastener 3400. In this embodiment, for example, the fastening fastener 3400 can be positioned along the thread of the fastening fastener 3400 by pushing the fastening fastener 3400 into the retaining element 3450 and, for example, The retaining element 3450 may be configured to flexibly engage the threads of the fastening fastener 3400 so that it remains substantially in position when positioned along the threads. Accordingly, the retaining element 3450 can retain the end of the fastening fastener 3400 within the shaft receiver 3200 after the shaft sleeve 1100 is removed from the shaft receiver 3200 and can be secured to the sleeve lower end 3192. Insertion of 3400 ends can be made possible. In some examples, the retaining element 3450 may comprise a material such as a nylon material or other plastic material that is more flexible than the material of the fastening fastener 3400.

  In other examples, the hole into which the fastening fastener 3400 enters the shaft receiver 3200 may include a thread corresponding to the thread of the fastening fastener 3400, such that the thread is thereby used as a retaining element. May function. In these other examples, retaining element 3450 may be omitted.

  When shaft sleeve 1110 is secured within shaft receiver 3200 by fastening fasteners 3400, sleeve coupler set 3110 and receiver coupler set 3210 are configured such that at least a majority of their respective arcuate surfaces are secured relative to each other. Has been. For example, in the embodiment of FIGS. 10-11, when secured relative to each other, at least most of the entire surface of sleeve coupler 5116 and most of the entire surface of receiver coupler 8218 are in contact with each other, and shaft receiver 3200. The rotation of the shaft sleeve 1100 with respect to is limited. As another example, in the embodiment of FIGS. 11-12, when secured to each other, most of the entire surface of sleeve coupler 12116 and most of the entire surface of receiver coupler 13218 are also in contact with each other. Rotation is limited. In the same or other examples, between an individual sleeve coupler of sleeve coupler set 3110 (FIG. 10) or 12110 (FIG. 12) and an individual receiver coupler of receiver coupler set 3210 (FIG. 11) or 13210 (FIG. 13). The contact area defined by the interface may be between about 51% and about 95% of the total surface of the individual receiver coupler or individual sleeve coupler. In some embodiments, such contact area may be even larger, such as substantially approximating or equal to the entire surface of the individual receiver coupler and / or individual sleeve coupler. The sleeve coupler arcuate surface of sleeve coupler set 3110 (FIG. 10) or 12110 (FIG. 12) is secured to the receiver coupler arcuate surface of receiver coupler set 3200 (FIG. 11) or 13210 (FIG. 13). In addition, there may be an example in which normal forces act on each contact area.

  In this embodiment, when the fixing fastener 3400 fixes the shaft sleeve 1100 in the shaft receiver 3200, the sleeve top portion 3170 stays outside the shaft receiver 3200, and the sleeve coupler set 3110 is fixed to the receiver coupler set 3210. Accordingly, the lower end portion 3171 of the sleeve top portion 3170 is separated from the upper end portion of the shaft receiver 3200. Such built-in space reduces manufacturing tolerances and ensures that the sleeve coupler set 3110 can be properly secured to the receiver coupler set 3210.

  In the same or other examples, a portion of one or more sleeve couplers of the sleeve coupler set 3110 may protrude beyond the upper end of the shaft receiver 3200. There may be examples where one or more sleeve couplers of the sleeve coupler set 3110 may extend beyond the lower end of one or more receiver couplers of the receiver coupler set 3210. In other examples, one or more receiver couplers of the receiver coupler set may extend beyond the lower end of one or more sleeve couplers of the sleeve coupler set 3110. Some of the features described above may be designed into the golf coupling mechanism 1000 to alleviate the required manufacturing tolerances while still allowing proper fixation of the sleeve coupler set 3110 to the receiver coupler set 3210. Also good.

  FIG. 14 shows a top cross-sectional view of the golf coupling mechanism 1000 of configuration 1400, viewed at line XIV-XIV in FIG. Golf coupling mechanism 1000 is shown in configuration 1400 in FIGS. 3-4 and 14 and sleeve couplers 3111, 7115, 3112 and 5116 (FIG. 7) of sleeve coupler set 3110 are receiver couplers of receiver coupler set 3210, respectively. 3213, 8217, 3214 and 8218 (FIG. 8). As described above, the shaft bore axis 6150 (FIG. 6) is non-coaxial with the sleeve axis 5150 of the shaft sleeve 1100, so that the configuration 1400 of FIG. 14 includes the shaft bore axis 6150 (FIG. 6) and the shaft receiver 3200 (FIG. 3). 4, 8 to 9) and / or between the shaft 102 (FIG. 1) and the golf club head 101 (FIG. 1), the first lie angle and the first loft angle are provided. Can do.

  FIG. 15 shows a top cross-sectional view of the golf coupling mechanism 1000 of configuration 1500, viewed at line XIV-XIV in FIG. In configuration 1500, sleeve couplers 3112, 5116, 3111 and 7115 (FIG. 7) of sleeve coupler set 3110 are coupled to receiver couplers 3213, 8217, 3214 and 8218 (FIG. 8) of receiver coupler set 3210, respectively. As described above, the shaft bore axis 6150 (FIG. 6) is non-coaxial with the sleeve axis 5150 of the shaft sleeve 1100, so the configuration 1500 of FIG. 15 includes the shaft bore axis 6150 (FIG. 6) and the shaft receiver 3200 (FIG. 3). To FIG. 4, FIG. 8 to FIG. 9) and / or a second lie angle and a second loft angle between the shaft 102 (FIG. 1) and the golf club head 101 (FIG. 1). Can do.

  FIG. 16 shows a top cross-sectional view of the golf coupling mechanism 1000 of configuration 1600 viewed along line XIV-XIV in FIG. In configuration 1600, sleeve couplers 7115, 3112, 5116 and 3111 (FIG. 7) of sleeve coupler set 3110 are coupled to receiver couplers 3213, 8217, 3214 and 8218 (FIG. 8) of receiver coupler set 3210, respectively. As described above, since the shaft hole shaft 6150 (FIG. 6) is non-coaxial with the sleeve shaft 5150 of the shaft sleeve 1100, the configuration 1600 of FIG. 16 includes the shaft hole shaft 6150 (FIG. 6) and the shaft receiver 3200 (FIG. 3). 4, 8-9) and / or a third lie angle and a third loft angle between the shaft 102 (FIG. 1) and the golf club head 101 (FIG. 1).

  FIG. 17 shows a top cross-sectional view of the golf coupling mechanism 1000 of configuration 1700 as viewed along line XIV-XIV in FIG. In configuration 1700, sleeve couplers 5116, 3111, 7115 and 3112 (FIG. 7) of sleeve coupler set 3110 are coupled to receiver couplers 3213, 8217, 3214 and 8218 (FIG. 8) of receiver coupler set 3210, respectively. As described above, the shaft hole shaft 6150 (FIG. 6) is non-coaxial with the sleeve shaft 5150 of the shaft sleeve 1100, so the configuration 1700 of FIG. 17 is the shaft hole shaft 6150 (FIG. 6) and the shaft receiver 3200 (FIG. 3). 4 and FIGS. 8-9) and / or between the shaft 102 (FIG. 1) and the golf club head 101 (FIG. 1) includes a fourth lie angle and a fourth loft angle.

  Depending on the angle of the shaft hole axis 6150 with respect to the sleeve axis 5150 and the sleeve coupler set 3110, different lie angle and loft angle alignments may be obtained by the configurations shown in FIGS. For example, in this embodiment, as seen in FIG. 6, the shaft bore shaft 6150 and the sleeve shaft 5150 are such that the shaft 102 (FIG. 1) is tilted toward the sleeve coupler 3112 when inserted into the shaft sleeve 1100. The lower part of the shaft hole 3120 is directed toward the sleeve coupler 3111 with an angle between the two.

  Thus, in configuration 1400 (FIG. 14), the first lie angle may have a smaller lie angle and the first loft angle may have a neutral or intermediate loft angle. As an example, the first lie angle can be set so that the grip end of the shaft 102 is tilted from about 0.2 degrees to about 4 degrees toward the heel of the golf club head 101 (FIG. 1). As a result, the lie angle of the golf club in the configuration 1400 decreases. The first loft angle that is neutral in the present embodiment does not affect the inclination of the shaft 102 in the configuration 1400.

  In configuration 1500 (FIG. 15), the second lie angle may have a larger lie angle, and the second loft angle may have a neutral or intermediate loft angle, the loft angle being the configuration 1400. It may be similar to or equal to the first loft angle of (FIG. 14). As an example, the second lie angle can be set so that the grip end of the shaft 102 is tilted from about 0.2 degrees to about 4 degrees toward the toe of the golf club head 101 (FIG. 1). Thus, the lie angle of the golf club in the configuration 1500 is increased. The second loft angle that is neutral in this embodiment does not affect the inclination of the shaft 102 in the configuration 1500.

  In configuration 1600 (FIG. 16), the third loft angle may have a smaller loft angle, and the third lie angle may have a neutral or intermediate lie angle. As an example, the third loft angle can be set so that the grip end of the shaft 102 is tilted about 0.2 degrees to about 4 degrees toward the rear portion of the golf club head 101 (FIG. 1). As a result, the loft angle of the golf club in the configuration 1600 decreases. The third lie angle that is neutral in this embodiment does not affect the inclination of the shaft 102 in the configuration 1600.

  In configuration 1700 (FIG. 17), the fourth loft angle may have a larger loft angle, the fourth lie angle may have a neutral or intermediate lie angle, and this lie angle is the configuration 1600. It may be similar to or equal to the third lie angle in FIG. As an example, the fourth loft angle may be set so that the grip end portion of the shaft 102 is inclined about 0.2 degrees to about 4 degrees toward the front portion or the hitting surface of the golf club head 101 (FIG. 1). This can increase the loft angle of the golf club in configuration 1700. The fourth lie angle that is neutral in this embodiment does not affect the inclination of the shaft 102 in the configuration 1700.

  In other embodiments, changing the angle and / or orientation of the shaft bore axis 6150 (FIG. 6) with respect to the sleeve axis 5150 (FIG. 6) of the shaft sleeve 1100 constitutes a relationship between other lie angles and loft angles. May be. Further, as can be seen from FIGS. 14 to 17, the sleeve couplers 3111, 3112, 5116 and 7115 are symmetrical with each other, and the receiver couplers 3213, 3214, 8217 and 8218 are also symmetrical with each other. In different embodiments, only the opposing ones of the sleeve coupler and receiver coupler may be symmetric with respect to each other so that only two different lie and loft angle combinations (rather than four) are possible. Good.

  The various features described above with respect to the golf coupler mechanism of FIGS. 1-17 are several in comparison to golf clubs in which the golf coupler mechanism is used when compared to other golf club heads having adjustable shaft coupling mechanisms. The performance advantage can also be imparted. For example, the hosel diameter 1031 of the hosel 1015 (FIG. 1) can be reduced due to the reduced number of parts required and / or because the receiver coupler set 3210 is located only toward the upper end of the shaft receiver 3200 (FIG. 3). It can be kept to a minimum and / or can be relatively unchanged from the corresponding standard golf club head hosel diameter. In some examples, as seen in FIG. 8, the hosel diameter 1031 is less than about 20 mm, such as about 0.55 inches (about 14 mm), or about 0.53 inches (about 13.46 mm). In addition, the upper wall thickness 9250 (FIGS. 8-9) of the shaft receiver 3200 can be minimized, as shown at the receiver upper end 1032 of the shaft receiver 3200. For example, the top wall thickness 9250 may be about 0.035 inches (about 0.9 mm) or less, for example, about 0.024 inches (about 0.61 mm).

  As can be seen in FIG. 8, in this embodiment, the upper wall thickness 9250 varies in thickness along the receiver upper end 1032 and the receiver upper end 1032 has at least one hosel upper wall thin portion 8252 and at least One hosel upper wall thick portion 8251. When measured in a radial direction with respect to the center point of the hosel diameter 1031, the hosel upper wall thick portion 8251 in the receiver upper end portion 1032 can have a thickness of about 2.3 mm or less. When measured in the radial direction with respect to the center point of the hosel diameter 1031, the hosel upper wall thin portion 8252 at the receiver upper end portion 1032 can have a thickness of about 0.9 mm or less. In the present embodiment, when measured in the radial direction with respect to the center point of the hosel diameter 1031, the hosel upper wall thick portion 8251 is about 1.27 mm or less, and the hosel top wall thin portion 8252 is 0.64 mm or less. Good.

  As described above, the aerodynamic characteristics of the golf club head 101 can be improved by reducing the aerodynamic drag of the hosel 1015 by minimizing the hosel diameter 1031. FIG. 19 shows a comparison of stagnant drag wake regions 1911 and 1921 for each hosel of golf club heads 1910 and 1920. Golf club head 1910 has a hosel diameter of about 0.5 inches and golf club head 1920 has a larger hosel diameter of about 0.62 inches. In some examples, the golf club head 1910 may be similar to the golf club head 101 (FIGS. 1-4, 8-9). As seen in FIG. 19, the larger hosel diameter of the club head 1920 creates a larger stagnation drag wake region 1921 downstream of the hosel, as compared to the smaller stagnation drag wake region 1911 of the club head 1910 The value of aerodynamic drag increases. FIG. 20 shows a chart of drag as a function of open face angle with respect to the hosel diameter of golf club heads 1910 and 1920. In some examples, the club head 1910 may also include a golf club shaft having a reduced shaft thickness, such as a shaft thickness of about 0.335 inches (about 8.5 mm). In the same or other examples, for open face orientations of 50 degrees or less, such hosel diameter differences may cause drag resistance of the golf club head 1910 when compared to the greater drag of the golf club head 1920. May be as low as about 0.1 pounds or less. In the same or other examples, the drag of golf club head 1910 may range from about 1.2 pounds in a generally square orientation to about 0.2 pounds in an open face orientation of about 50 degrees.

  In the same or other embodiments, the mass and / or mass ratio of the golf coupler mechanism of FIGS. 1-17 can be compared to their respective golf club heads when compared to other golf club heads having adjustable shaft coupling mechanisms. May be minimized. For example, in an example where the golf club head 101 (FIGS. 1-4, 8-9) has a driver-type golf club head, the various elements of the club head 101 have masses similar to those shown in Table 1 below. It may have characteristics.

  In such an example, as shown in Table 2 below, the ratio of the mass of the golf coupler mechanism 1000 to the club head 101 after assembly may be very low.

  For example, in another example where the golf club head 101 (FIGS. 1-4, 8-9) has a fairway wood type golf club head, the various elements of the club head 101 are as shown in Table 3 below. It may have similar mass characteristics.

  In such an example, as shown in Table 4 below, the ratio of the mass of the golf coupler mechanism 1000 to the club head 101 after assembly may be very low.

  There may be examples where the above-described mass, size and / or position characteristics can provide advantages and / or flexibility with respect to the mass distribution and / or the location of the center of gravity (CG) of the golf club head. For example, the shaft sleeve center of gravity 1150 (FIG. 1) of the shaft sleeve 1100 may be configured to be disposed at a shaft sleeve CG vertical distance 1159 (FIG. 1).

  In some examples, such as embodiments where the club head 101 (FIGS. 1-4, 8-9) has a driver-type golf club head, the shaft sleeve center of gravity 1150 (FIG. 1) of the shaft sleeve 1100 is The shaft sleeve CG may be arranged at a vertical distance 1159 of less than about 50 mm above the outer sole lower end portion 10141 of the sole 1014 of the mold club head 101. In the same or other examples, the shaft sleeve CG vertical distance 1159 may be less than about 46.2 mm above the outer sole lower end 10141. In the same or other examples, shaft sleeve CG vertical distance 1159 may be less than about 43.7 mm above outer sole lower end 10141. The shaft sleeve center of gravity 1150 of the shaft sleeve 1100 is also about 0.59 inches above the club head center of gravity 1050 (FIG. 1) after assembly of the driver-type assembled golf club head 101 in some embodiments. The shaft sleeve CG vertical distance 1059 (FIG. 1) may be arranged to be less than 15 mm). In the same or other embodiments, the shaft sleeve CG vertical distance 1159 may be at least about 7.6 mm greater than the club head CG vertical distance 1058 after assembly of the driver-type club head 101.

  In other examples, such as embodiments where the club head 101 (FIGS. 1-4, 8-9) has a fairway wood type golf club head, the shaft sleeve center of gravity 1150 (FIG. 1) of the shaft sleeve 1100 is fairway. It may be configured to be disposed at a shaft sleeve CG vertical distance 1159 of less than about 35.6 mm above the lower end of the outer sole of the sole 1014 of the wood-type club head 101. In the same or other examples, the shaft sleeve CG vertical distance 1159 may be less than about 1.35 inches (about 34.3 mm) above the outer sole lower end 10141 of the sole 1014 of the fairway wood type club head 101. The shaft sleeve center of gravity 1150 of the shaft sleeve 1100 is also, in some embodiments, less than about 19 mm above the club head center of gravity 1050 (FIG. 1) after assembly of the golf club head 101 after fairway wood type assembly. The CG vertical distance 1059 (FIG. 1) may be arranged. In the same or other embodiments, the shaft sleeve CG vertical distance 1159 may be at least about 16.5 mm greater than the club head CG vertical distance 1058 after assembly of the fairway wood type club head 101.

  In this example, as seen in FIG. 1, the hosel 1015 has a hosel shaft 1016 that extends along the longitudinal centerline of the hosel 1015. The hosel axis 1016 defines a hosel lie angle 1018 with respect to the lower horizontal axis 1019. The lower horizontal shaft 1019 is tangent to the sole lower end 10141 horizontally. In some embodiments, the hosel lie angle 1018 may be about 58 degrees, for example. In this embodiment, the shaft sleeve CG vertical distance 1159 and the assembled club head CG vertical distance 1058 extend vertically from the lower horizontal axis 1019.

  Club head 101 also has a crown height vertical distance 1018 extending perpendicular to the upper end of crown 1017 and with respect to sole lower end 10141. For example, in some embodiments where the club head 101 has a driver-type golf club head, the crown height vertical distance 1018 may be at least about 59.7 mm relative to the sole lower end 10141. In the same or other embodiments, the assembled club head CG vertical distance may be less than about 33 mm relative to the sole lower end 10141.

  As seen in FIG. 1, there may be an example in which the receiver upper end portion 1032 is at the upper portion of the hosel 1015 and is configured to stay below the upper end portion of the crown 1017 of the golf club head 101. In the same or other embodiments, the hosel 1015 may not have a cylindrical outer top portion, and the crown 1017 is substantially at the receiver upper end 1032 of the hosel 1015 without defining the cylindrical outer shape of the hosel 1015. It may be transferred to a circular outer peripheral part. With such a feature, the position of the center of gravity of the shaft sleeve 1100 can be made closer to the center of gravity of the golf club head 101 after assembly.

  Returning to the drawings, FIG. 18 shows a flowchart of a method 18000 that may be used to provide, form, and / or manufacture a golf coupler mechanism according to the present disclosure. In some examples, the golf coupler mechanism may be similar to the golf coupler mechanism 1000 of FIGS. 1-11 and 14-16 or the golf coupler mechanism of FIGS.

  The method 18000 includes a block 18100 for providing a shaft sleeve coupled to the end of a golf club shaft and including a sleeve arcuate coupler set. In some examples, the shaft sleeve may be similar to the shaft sleeve 1100 (FIGS. 1-7, 10, 14-14) and / or the shaft sleeve 12100 (FIG. 12). The golf club shaft may be similar to the golf club shaft 102 (FIGS. 1 and 5). In the same or other examples, the sleeve arcuate coupler set may be similar to sleeve coupler set 3110 (FIGS. 3-7, 10, 14-17) and / or sleeve coupler set 12110 (FIG. 12). Good.

  Block 18200 of method 18000 comprises providing a golf club head shaft receiver having a receiver arcuate coupler set configured to couple with a sleeve arcuate coupler set of the shaft sleeve. In some examples, the shaft receiver may be similar to the shaft receiver 3200 (FIGS. 3-4, 8-9, 11, 14-17) and / or the shaft receiver 13200 (FIG. 13). Good. The receiver arcuate coupler set may be similar to receiver coupler set 3210 (FIGS. 3-4, 8-9, 11, 14-17) and / or receiver coupler set 13210 (FIG. 13). .

  Block 18300 of method 18000 comprises providing a fastening fastener configured to secure the shaft sleeve to the shaft receiver. In some examples, the fastening fasteners may be similar to the fastening fasteners 3400 (FIGS. 3-4). The securing fastener may be configured to pull the shaft sleeve toward the shaft receiver and secure the sleeve arcuate coupler set to the receiver arcuate coupler set.

  In some examples, one or more of the different blocks of method 18000 may be combined into a single block, performed simultaneously, and / or the order of such blocks may be changed. For example, in some embodiments, block 18200 and block 18300 may be combined as needed. In the same or other examples, some of the blocks of method 18000 may be subdivided into several sub-blocks. As an example, the block 18100 forms a sub-block for forming a horizontal radius of curvature of the sleeve coupler arcuate surface of the sleeve arcuate coupler set, and a vertical tapering of the sleeve coupler arcuate surface of the sleeve arcuate coupler set. And a sub-block for the purpose. There may be examples where the method 18000 may have additional or different blocks. As an example, the method 18000 may have another block for preparing a golf club head for the shaft receiver of block 18200 and / or another block for preparing a shaft for the shaft sleeve of block 18100. Good. In addition, there may be instances where the method 18000 may have only some of the steps described above. For example, in some implementations block 18300 may be optional. Other variations of the method 18000 may be implemented without departing from the scope of this disclosure.

Slot Cap Golf Coupling Mechanism Referring to the previous figure, FIG. 21 shows a front perspective view of a golf club head 21101 having a golf coupling mechanism 211000 according to one embodiment. In many embodiments, the golf coupling mechanism 211000 may have a shaft sleeve 211100 configured to be coupled to an end of a golf club shaft, such as the golf club shaft 21102. In various embodiments, the golf club head 21101 may be similar to the golf club head 101 (FIG. 1), the golf coupling mechanism 211000 may be similar to the golf coupling mechanism 1000 (FIG. 1), and / or Alternatively, the golf club shaft 21102 may be similar or identical to the golf club shaft 102 (FIG. 1). Therefore, the golf coupling mechanism 211000 may include the shaft sleeve 211100 and the shaft receiver 213200. On the other hand, the shaft sleeve 211100 may be similar to the shaft sleeve 1100 (FIG. 1) and / or the shaft receiver 213200 may be similar to the shaft receiver 3200 (FIG. 3).

  Referring again to the previous drawing, FIG. 22 shows a side view of the shaft sleeve 211100 separated from the golf club head 21101 (FIG. 21) according to the embodiment of FIG. On the other hand, FIG. 23 shows a cross-sectional view of shaft sleeve 211100 along line XXIII-XXIII of FIG. 22 according to the embodiment of FIG.

  Referring to FIG. 22, the shaft sleeve 211100 includes a shaft sleeve body 22103 and a shaft sleeve cap 22104. Further, in many embodiments, the shaft sleeve body 22103 can have a sleeve coupler set 223110 having one or more couplers protruding from the sleeve body outer wall 223130 and the shaft receiver 213200 (FIG. 21) can be There may be a receiver coupler set configured to engage the sleeve coupler set 223110 of 211100 and limit the rotation of the shaft sleeve 211100 relative to the shaft receiver 213200. In these or other embodiments, the sleeve coupler set 213110 may be similar to the sleeve coupler set 3110 (FIG. 3), the sleeve body outer wall 223130 may be similar to the sleeve outer wall 3130 (FIG. 3), and / or The receiver coupler set may be similar to the receiver coupler set 3210 (FIG. 3). As will be described in more detail below, in many embodiments, the shaft sleeve cap 22104 may have a ferrule and is operable to couple the shaft sleeve body 22103 with the golf club shaft 21102 (FIG. 21). There may be.

  On the other hand, referring now to FIG. 23, the shaft sleeve 211100 is located at (i) a shaft hole 233120 configured to receive the end of the golf club shaft 21102 (FIG. 21), and (ii) at the sleeve body lower end 233192. It may have a fastening fastener hole 23105, (iii) a hole bottom surface 23111, and / or (iv) a shaft sleeve upper end portion 231191. In order to secure the shaft sleeve 211100 to the shaft receiver 213200 (FIG. 21), the fastening fastener hole 23105 may be configured to receive a fastening fastener (not shown). Furthermore, the hole bottom surface 23111 may have a bottom surface (for example, the deepest surface) of the shaft hole 232120. In many embodiments, shaft hole 233120 may be similar to shaft hole 3120 (FIG. 3) and fixation fastener hole 23105 is similar to a hole configured to receive fixation fastener 3400 (FIG. 3). The sleeve body lower end 233192 may be similar to or the same as the sleeve lower end 3192 (FIG. 3), and the fixing fastener may be a fixing fastener 3400 (FIG. 3). ) And / or the shaft sleeve upper end 231191 may be similar or identical to the sleeve upper end 1191 (FIG. 3).

  Further, when the shaft sleeve body 22103 is coupled to the shaft sleeve cap 22104, the shaft sleeve 211100 has a shaft sleeve height 23119, a shaft sleeve body height 23120, a shaft sleeve cap height 23121, and a shaft sleeve cap top height. 23122 may be included. The shaft sleeve height 23119 may mean the distance from the sleeve body lower end 233192 to the shaft sleeve upper end 231191 measured substantially perpendicular to the sleeve body lower end 233192. On the other hand, the shaft sleeve main body height 23120 may mean the distance from the sleeve main body lower end portion 233192 to the shaft sleeve main body 22103 upper end portion measured in parallel with the shaft sleeve height 23119. The shaft sleeve cap height 23121 may mean the distance from the lower portion of the shaft sleeve cap 22104 to the shaft sleeve upper end portion 23119 measured in parallel with the shaft sleeve height 23119. Further, the shaft sleeve cap top height 23122 may mean the difference between the shaft sleeve height 23119 and the shaft sleeve body height 23120.

  For example, the shaft sleeve height 23119 may be about 1.78 inches or more and about 1.82 inches or less. In a particular example, the shaft sleeve height 23119 may be about 1.8 inches.

  Further, the shaft sleeve body height 23120 may be about 1.527 inches or more and about 1.567 inches or less. In a particular example, shaft sleeve body height 23120 may be about 1.547 inches.

  Furthermore, the shaft sleeve cap height 23121 may be about 0.43 inches and not more than about 0.47 inches. In a particular example, shaft sleeve cap height 23121 may be about 0.45 inches.

  On the other hand, for example, the shaft sleeve cap upper height 23122 may be about 0.23 inches or more and about 0.27 inches or less. In a particular example, the shaft sleeve body height 23122 may be about 0.25 inches.

  In some embodiments, a fastening fastener (not shown) for insertion into the fastening fastener hole 23105 may comprise titanium coated steel. Further, the fastening fasteners may have a fastening fastener mass. The fastening fastener mass may be about 2.7 grams or more.

  Referring to the following drawings, FIG. 24 shows a side view of the shaft sleeve body 22103 separated from the shaft sleeve cap 22104 (FIG. 22), according to the embodiment of FIG. The shaft sleeve body 22103 may be associated with one or more regions 24106. For example, the region 24106 may include a fastener region 24107, an intermediate region 24108, a coupler region 24109, and a cap interface region 24110.

  The fastener region 24107 may mean a portion of the shaft sleeve body 22103 located between the sleeve body lower end 233192 and the hole bottom surface 23111 (FIG. 23). On the other hand, the coupler region 24109 is formed from the lowest point of the sleeve coupler set 223110 (for example, the point of the sleeve coupler set 223110 closest to the sleeve lower end portion 233192 (FIG. 23)) to the highest point of the sleeve coupler set 223110 (for example, sleeve It may mean a part of the shaft sleeve body located from the lower end 233192 of the body to the point of the sleeve coupler set 223110 farthest from the bottom end portion 233192. On the other hand, the intermediate region 24108 may mean a portion of the shaft sleeve body 22103 between the fastener region 24107 and the coupler region 24109. The cap interface region 24110 may mean a portion of the shaft sleeve body 22103 that is opposite the coupler region 24109 with respect to the intermediate region 24108.

  When the golf club head 21101 (FIG. 21) is swung and / or manipulated to strike a golf ball, the fastener region 24107 and the coupler region 24109 can be under high stress. On the other hand, the intermediate region 24108 and / or the cap interface region 24110 may experience a lower stress than the high stress experienced by the fastener region 24107 and the coupler region 24109.

  By fixing the shaft sleeve 211100 (FIG. 21) to the shaft receiver 213200 (FIG. 21) with a fixing fastener, high stress cancellation in the fastener region 24107 can be assisted. Further, due to the high stresses that may be experienced in the coupler region 24109, the couplers of the sleeve coupler set 223110 are solid lobes configured to impart additional thickness to the sleeve body wall of the shaft sleeve body 22103. ). Thus, the coupler can reinforce the sleeve body wall in the coupler region 24109 to offset these high stresses in the coupler region 24109. The couplers of the sleeve coupler set 223110 can be sloped (eg, linearly or curvilinearly) and the end of the coupler region 24109 furthest from the sleeve body lower end 233192 (eg, the coupler region 24109 is in the cap interface region 24110). A minimum thickness at the end of the coupler region 24109 closest to the sleeve body lower end 233192 (FIG. 23) (for example, a position where the coupler region 24109 connects to the intermediate region 24108). Have. For example, the maximum thickness may be about 0.75 inches thick. The minimum thickness may be about 0.020 inches thick. In many embodiments, grading the couplers of the sleeve coupler set 223110 (FIG. 22) may provide continuity (eg, a smooth transition in thickness) between the intermediate region 24108 and the cap interface region 24110. it can.

  In some embodiments, the couplers of the sleeve coupler set 223110 may be symmetric in contour. The coupler length of the sleeve coupler set 223110 may be about 0.38 inches or less (eg, a portion of the sleeve body outer wall 223130 of the shaft sleeve body 42103), or about 0.26 inches or more ( For example, another portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103).

  In some embodiments, the coupler is such that the first portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103 is longer than another portion (eg, a portion that faces the first portion or faces 180 degrees). As such, the couplers of the sleeve coupler set 223110 may be asymmetric in profile. The coupler length of the sleeve coupler set 223110 may be about 0.38 inches or less (eg, the portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103), and may be about 0.260 inches or more (eg, , Another portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103). In many embodiments, the couplers of the sleeve coupler set 223110 (FIG. 22) are at the end of the coupler region 24109 furthest from the sleeve body lower end 233192 (eg, where the coupler region 24109 connects to the cap interface region 24110). It may be the longest in the portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103 closest to the sleeve axis of the shaft sleeve body 22103. The sleeve shaft may be similar or identical to the sleeve shaft 5150 (FIG. 5). In other words, the coupler of the sleeve coupler set 223110 (FIG. 22) has the sleeve axis and is the longest in the portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103 that intersects the surface extending substantially perpendicular to the sleeve body lower end 233192. May be.

  On the other hand, when the golf club head 21101 is swung and / or operated to hit a golf ball, the stress applied to the intermediate region 24108 is lower, so that the sleeve body wall of the shaft sleeve body has a coupler region 24109. It may be thinner in the middle region 24108 than part or all and / or the middle region 24108 may have a hole or recess to reduce weight. For example, the sleeve body wall of the shaft sleeve body 22103 in the intermediate region 24108 may have a thickness (eg, an average thickness) of about 0.020 inches.

  Returning now to FIG. 23, in some embodiments, the shaft hole 233120 may have a width (eg, diameter) of about 0.346 inches. In these embodiments, the width may have an average width and / or may be substantially constant throughout the shaft hole 233120.

  In various embodiments, the shaft sleeve body 22103 has an etched channel 23112 in the shaft hole 233120 to provide a more appropriate surface area for epoxy bonding the golf club shaft 21102 (FIG. 21) to the shaft sleeve body 22103. it can. Etch channel 23112 is in coupler region 24109 (FIG. 24) and / or a portion of intermediate region 24108 (FIG. 24), eg, half of intermediate region 24108 (FIG. 24) closer to coupler region 24109 (FIG. 24) or You may arrange | position to the whole.

  In these or other embodiments, the shaft sleeve body 22103 may have a receiving groove 23113 (eg, an undercut notch). As will be described in more detail below, the receiving groove 23113 communicates with and interlocks with the protrusion 25114 (FIG. 25) of the shaft sleeve cap 22104 to secure the shaft sleeve cap 22104 to the shaft sleeve body 22103. it can. Thus, in many embodiments, the receiving groove 23113 can complement the protrusion 25114 (FIG. 25). In some embodiments, the receiving groove 23113 may be disposed in the cap interface region 24110 (FIG. 24). In many embodiments, the receiving groove 23113 may be located at the interface between the cap interface region 24110 (FIG. 24) and the coupler region 24109 (FIG. 24).

  Referring now to the previous drawings, FIG. 25 shows a side view of the shaft sleeve cap 22104 separated from the shaft sleeve body 22103 (FIG. 22), according to the embodiment of FIG.

  In some embodiments, the shaft sleeve cap 22104 may have a cap wall 25115. Further, the cap wall 22115 may have a protrusion 25114 and one or more slits 25116.

  The protrusion 25114 may have a lip that extends from the cap wall 25115, such as an end of the cap wall 25115, for example. Thus, the protrusion 25114 may have a width (eg, diameter) that is greater than the remainder of the cap wall 25115 and / or the width (eg, diameter) of the shaft hole 233120.

  On the other hand, when the shaft sleeve cap 22104 is coupled to the shaft sleeve main body 22103 (FIG. 22) and separated from the shaft sleeve main body 22103, the slit 25116 has a cap wall 25115 (for example, a protrusion 25114) ( For example, it may be temporarily elastically compressed (eg, axially) and allowed to be drawn toward the cap wall 25115 itself. Accordingly, the protrusion 25114 is disposed in and out of the receiving groove 23113 (FIG. 23) to couple the shaft sleeve cap 22104 to and separate from the shaft sleeve body 22103 (FIG. 22). May be. In these embodiments, the protrusion 25114 may be operable as a locking feature to lock or snap the shaft sleeve cap 22104 in place.

  The shaft sleeve cap 22104 may be further operable to provide damping (eg, vibration and / or stress reduction) between the golf club shaft 21102 (FIG. 21) and the shaft sleeve body 22103 (FIG. 22). Good. For example, the shaft sleeve cap 22104 may function as a “shaft pillow” by increasing the concentricity of the golf club shaft 21102 (FIG. 21) within the shaft sleeve body 22103 (FIG. 22). In many embodiments, the concentricity of the golf club shaft 21102 (FIG. 21) within the shaft sleeve body 22103 (FIG. 22) may be strongly correlated with the durability of the golf club shaft 21102 (FIG. 21). Therefore, the shaft sleeve cap 22104 can prevent the golf club shaft 21102 (FIG. 21) from being damaged, and can extend the overall life of the golf club head 21101 (FIG. 21).

  Referring to the previous drawing, FIG. 26 shows an elevation view of the shaft sleeve cap 22104 separated from the shaft sleeve body 22103 (FIG. 22), according to the embodiment of FIG. In many embodiments, the shaft sleeve cap 22104 may have a cap hole 26116, a cap hole width 26117, and one or more alignment features 26118. In some embodiments, the shaft hole 233120 (FIG. 23) may also have a cap hole width 26117. The cap hole width 26117 may mean the width (eg, diameter) of the cap hole 26116. In these embodiments, the width may have an average width (eg, an average diameter).

  The cap hole width 26117 can be larger than the width (eg, diameter) of the golf club shaft 21102 (FIG. 21). The difference between the cap hole width 26117 and the width of the golf club shaft 21102 (FIG. 21) may lead to a misalignment of the shaft orientation. Accordingly, the alignment function portion 26118 may protrude from the inner surface of the cap hole 26116 in order to prevent misalignment of the golf club shaft 21102 (FIG. 21). The distance that the aligning function portion 26118 extends from the inner surface of the cap hole 26116 is an effective width (for example, a diameter) less than or equal to the width of the golf club shaft 21102 (FIG. 21) in the cap hole 26116 due to the collective size. May be at least sufficient to provide. The cap hole width 26117 is larger than the effective width of the cap hole 26116 obtained from the alignment function portion 26118. Further, the cap hole width 26117 may be similar to or the same as the width of the shaft hole 233120 (FIG. 23). Therefore, when the golf club shaft 21102 (FIG. 21) is introduced into the shaft sleeve cap 22104 and the shaft sleeve body 22103 (FIG. 23), the alignment function portion 26118 places the golf club shaft 21102 (FIG. 21) in the cap hole 26116. And is operable to be positioned approximately centrally about the sleeve axis described above.

  Referring again to FIG. 22, the shaft sleeve body 22103 may comprise any suitable material. For example, in some embodiments, the shaft sleeve body 22103 may comprise a metal or metal alloy (eg, an aluminum alloy). In these examples, the aluminum alloy may include about 70% or more aluminum and about 75% or less aluminum. In more specific examples, the aluminum alloy may include about 70%, 71%, 72%, 73%, 74%, or 75% aluminum. Similarly, the shaft sleeve cap 22104 may comprise any suitable material configured to allow the cap wall 25115 (FIG. 25) to elastically compress as described above. For example, the shaft sleeve cap 22104 may include a polymeric material.

  In many embodiments, the shaft sleeve body 22103 can have a shaft sleeve body mass and the shaft sleeve cap 22104 can have a shaft sleeve cap mass. Further, the shaft sleeve 211100 may have a shaft sleeve mass having a shaft sleeve body mass and a shaft sleeve cap mass. The shaft sleeve mass may be similar to the sleeve mass described above with respect to the sleeve 1100 (FIG. 1).

  In these or other embodiments, the shaft sleeve mass may be greater than or equal to about 4.3 grams. Further, the shaft sleeve body mass may be about 3.3 grams or more and about 3.8 grams or less. Furthermore, the shaft sleeve cap mass may be about 0.5 grams or more and about 1.0 grams or less. In various embodiments, the shaft sleeve mass may be about 0.5 grams less than the mass of the sleeve 1100 (FIG. 1). Further, the shaft sleeve mass combined with the fastening fastener mass may be about 7 grams or more. Thus, in various embodiments, the shaft sleeve 211100 can provide a weight advantage over the shaft sleeve 1100 (FIG. 1).

  Referring to FIG. 21, a golf club head 21101 may have a club head mass after disassembly and a club head mass after assembly. The post-decomposition club head mass may be similar to the post-decomposition club head mass described above with respect to the golf club head 101 (FIG. 1), and the post-assembly club head mass may be similar to the post-assembly club head described above with respect to the golf club head 101 (FIG. 1). It may be similar to the mass.

  In some embodiments, the club head mass after disassembly may be greater than or equal to about 185 grams and less than or equal to about 205 grams. In these or other embodiments, the club head mass after disassembly may be about 192 grams or more.

  In some embodiments, the post-assembly club head mass may be greater than or equal to about 188 grams and less than or equal to about 213 grams. In these or other embodiments, the post-assembly club head mass may be greater than or equal to about 199 grams.

  Further, the ratio of the shaft sleeve mass to the club head mass after disassembly may be about 2.0%, 2.2% or 2.4% or less, and the ratio of the shaft sleeve mass to the club head mass after assembly is about 1 .95%, 2.16% or 2.35% or less, and the ratio of the shaft sleeve mass and the fastening fastener mass to the club head mass after disassembly is about 3.4%, 3.6%, or 3.8% or less, and / or the ratio of the shaft sleeve mass and the fastening fastener mass to the club head mass after assembly is about 3.3%, 3.5% or 3.7% or less. May be.

  On the other hand, the golf club head 21101 can have an assembled club head CG related to the assembled club head CG vertical distance, and the shaft sleeve 211100 can have a shaft sleeve CG related to the shaft sleeve CG vertical distance. Can do. In these embodiments, the assembled club head CG may be similar or identical to the assembled club head CG 1050 (FIG. 1), and the assembled club head CG vertical distance is the assembled club head CG. The vertical distance 1058 (FIG. 1) may be similar or identical, the shaft sleeve CG may be similar to or identical to the shaft sleeve CG 1032 (FIG. 1), and / or the shaft sleeve CG vertical distance. May be similar or identical to shaft sleeve CG vertical distance 1159 (FIG. 1). In many embodiments, the shaft sleeve CG vertical distance is about 0.010 inches or more and about 0.050 inches (about 1.27 millimeters) greater than the shaft sleeve CG vertical distance 1159 (FIG. 1). It may be less as follows. For example, the shaft sleeve CG vertical distance may be about 44.9 mm or more from the lower end of the sole of the golf club head 21101 and about 46 mm or less from the lower end of the sole of the golf club head 21101. In particular examples, the shaft sleeve CG vertical distance is about 44.9 millimeters or more, about 45.0 millimeters or more, about 45.1 millimeters or more, about 45.2 millimeters or more from the sole lower end of the golf club head 21101, about 45.3 mm or more, about 45.4 mm or more, about 45.5 mm or more, about 45.6 mm or more, about 45.7 mm or more, about 45.8 mm or more, about 45.9 mm or more, about 46 It may be 0.0 millimeters or more. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 211000 is no more than about 44.9 millimeters, no more than about 45.0 millimeters, no more than about 45.1 millimeters from the bottom of the sole of the golf club head 41101, About 45.2 millimeters or less, about 45.3 millimeters or less, about 45.4 millimeters or less, about 45.5 millimeters or less, about 45.6 millimeters or less, about 45.7 millimeters or less, about 45.8 millimeters or less, about It may be 45.9 millimeters or less, or about 46.0 millimeters or less. The shaft sleeve CG vertical distance of the golf coupling mechanism 411000 may be 44.9 mm from the bottom end of the sole of the golf club head 41101. The sole lower end may be similar to or the same as the sole lower end 10141 (FIG. 1).

  Referring to the previous drawing, FIG. 27 shows a flowchart of a method 27000 according to one embodiment. In many embodiments, the method 27000 may comprise a method of manufacturing a golf club head of one or more parts of the golf club head. The golf club head may be similar to or the same as the golf club head 21101 (FIG. 21).

  The method 27000 may include an operation 27001 for preparing a shaft sleeve. The shaft sleeve may be similar or identical to the shaft sleeve 211100 (FIG. 21). FIG. 28 illustrates an exemplary operation 27001 according to the embodiment of FIG.

  For example, in FIG. 28, operation 27001 may include an operation 28001 for preparing (eg, manufacturing) a shaft sleeve body. The shaft sleeve body may be similar or identical to the shaft sleeve body 22103 (FIG. 22).

  Further, operation 27002 may include an operation 28002 for preparing (eg, manufacturing) a shaft sleeve cap. The shaft sleeve cap may be similar or identical to the shaft sleeve cap 22104 (FIG. 22).

  Referring again to FIG. 27, the method 27000 may include an operation 27002 for preparing (eg, manufacturing) a golf club head. The golf club head may be similar to or the same as the golf club head 21101 (FIG. 21). In some embodiments, operation 27001 may be performed before operation 27002 and vice versa. In other embodiments, operations 27001 and 27002 may be performed substantially simultaneously.

  Further, the method 27000 may include an operation 27003 for inserting the shaft sleeve into the hosel hole of the golf club head. The hosel hole may be similar or identical to the hosel hole described above with respect to the golf club head 21101 (FIG. 21).

  The method 27700 may also include an operation 27004 for inserting the golf club shaft into the shaft hole. The golf club shaft may be similar or identical to the golf club shaft 21102 (FIG. 21), and the shaft hole may be similar or identical to the shaft hole 233120 (FIG. 23).

  On the other hand, the method 27700 may include an operation 27005 for inserting the shaft sleeve cap into the shaft hole. In some embodiments, operation 27004 may be performed before operation 27005 or vice versa. In other embodiments, operations 27004 and 27005 may be performed substantially simultaneously. In further embodiments, operation 27003 may be performed before operation 27004 and / or operation 27005 and vice versa. In many embodiments, one or more of operations 27001 to 27003 may be performed before one or more of operations 27004 to 27005 or vice versa.

  Furthermore, the method 27000 may include an operation 27006 to secure the shaft sleeve to the golf club head hosel with a fastener. The hosel may be similar or identical to the hosel described above with respect to the golf club head 21101 (FIG. 21) and the fastener may be similar to the fastener described above with respect to the golf club head 21101 (FIG. 21) or It may be the same.

Solid Rib Cap Coupling Mechanism Referring to the previous drawings, FIG. 29 shows a front perspective view of a golf club head 41101 having a golf coupling mechanism 411000 according to one embodiment. In many embodiments, the golf coupling mechanism 411000 may have a shaft sleeve 411100 configured to be coupled to the end of a golf club shaft, such as the golf club shaft 41102. In various embodiments, the golf club head 41101 may be similar to the golf club head 101 (FIG. 1), the golf coupling mechanism 411000 may be similar to the golf coupling mechanism 1000 (FIG. 1), and / or Alternatively, the golf club shaft 41102 may be similar or identical to the golf club shaft 102 (FIG. 1). Therefore, the golf coupling mechanism 411000 may include the shaft sleeve 411100 and the shaft receiver 413200. On the other hand, the shaft sleeve 411100 may be similar to the shaft sleeve 1100 (FIG. 1) and / or the shaft receiver 413200 may be similar to the shaft receiver 3200 (FIG. 3).

  Referring again to the previous drawing, FIG. 30 shows a side view of the shaft sleeve 411100 separated from the golf club head 21101 (FIG. 29), according to the embodiment of FIG. On the other hand, FIG. 31 shows a cross-sectional view of the shaft sleeve 411100 along line XXXIII-XXXIII of FIG. 30 according to the embodiment of FIG.

  Referring to FIG. 30, the shaft sleeve 411100 includes a shaft sleeve body 42103 and a shaft sleeve cap 42104. Further, in many embodiments, the shaft sleeve body 22103 can have a sleeve coupler set 423110 with one or more couplers protruding from the sleeve body outer wall 423130 and the shaft receiver 413200 (FIG. 29) can be There may be a receiver coupler set configured to engage the sleeve coupler set 423110 of 411100 and limit rotation of the shaft sleeve 411100 relative to the shaft receiver 413200. In these or other embodiments, the sleeve coupler set 413110 may be similar to the sleeve coupler set 3110 (FIG. 3), the sleeve body outer wall 423130 may be similar to the sleeve outer wall 3130 (FIG. 3), and / or The receiver coupler set may be similar to the receiver coupler set 3210 (FIG. 3). As will be described in more detail below, in many embodiments, the shaft sleeve cap 42104 may have a ferrule and is operable to couple the shaft sleeve body 42103 to the golf club shaft 41102 (FIG. 29). May be.

  On the other hand, referring now to FIG. 31, the shaft sleeve 411100 is at (i) a shaft hole 433120 configured to receive the end of the golf club shaft 41102 (FIG. 29), and (ii) at the sleeve body lower end 433192. Fixing fastener hole 43105, (iii) hole bottom surface 43111, (iv) cap hole 42110 configured to receive the end of golf club shaft 41102 and couple to shaft hole 433120, and / or (v) shaft sleeve. You may have the upper end part 431191. In order to secure the shaft sleeve 411100 to the shaft receiver 413200 (FIG. 29), the fastening fastener hole 43105 may be configured to receive a fastening fastener (not shown). Furthermore, the hole bottom surface 43111 may have the bottom surface (for example, the deepest surface) of the shaft hole 432120. In many embodiments, the shaft hole 433120 may be similar to the shaft hole 3120 (FIG. 3), and the fastening fastener hole 43105 may be a hole configured to receive the fastening fastener 3400 (FIG. 3). The sleeve body lower end 433192 may be similar to or the same as the sleeve lower end 3192 (FIG. 3), and the fixing fastener is the fixing fastener 3400 (FIG. 3). ) And / or the shaft sleeve upper end 431191 may be similar or identical to the sleeve upper end 1191 (FIG. 3).

  Further, when the shaft sleeve body 42103 is coupled to the shaft sleeve cap 42104, the shaft sleeve 411100 has a shaft sleeve height 43119, a shaft sleeve body height 43120, a shaft sleeve cap height 43121, and a shaft sleeve cap top height. 43122 may be included. The shaft sleeve height 43119 may mean the distance from the sleeve body lower end 433192 to the shaft sleeve upper end 431191 measured substantially perpendicular to the sleeve body lower end 433192. On the other hand, the shaft sleeve body height 43120 may mean a distance from the sleeve body lower end 433192 to the shaft sleeve body 42103 upper end measured in parallel with the shaft sleeve height 43119. The shaft sleeve cap height 43121 may mean the distance from the lower portion of the shaft sleeve cap 42104 to the shaft sleeve upper end portion 431191, measured parallel to the shaft sleeve height 43119. Further, the shaft sleeve cap top height 43122 may mean the difference between the shaft sleeve height 43119 and the shaft sleeve body height 43120.

  For example, the shaft sleeve height 43119 may be about 1.78 inches or more and about 1.82 inches or less. In a particular example, the shaft sleeve height 43119 may be about 1.8 inches.

  Further, the shaft sleeve body height 43120 may be greater than or equal to about 1.529 inches and less than or equal to about 1.569 inches. In a particular example, the shaft sleeve body height 43120 may be about 1.549 inches.

  Furthermore, the shaft sleeve cap height 43121 may be about 0.46 inches or more and about 0.50 inches or less. In a particular example, shaft sleeve cap height 43121 may be about 0.48 inches.

  On the other hand, for example, the shaft sleeve cap upper height 43122 may be about 0.23 inches or more and about 0.27 inches or less. In a particular example, the shaft sleeve body height 43122 may be about 0.25 inches.

  In some embodiments, a fastening fastener (not shown) for insertion into the fastening fastener hole 23105 may comprise titanium-coated steel. Further, the fastening fasteners may have a fastening fastener mass. The fastening fastener mass may be about 2.7 grams or more.

  Referring to the following drawings, FIG. 32 shows a side view of the shaft sleeve body 42103 separated from the shaft sleeve cap 42104 (FIG. 30), according to the embodiment of FIG. The shaft sleeve body 42103 may be associated with one or more regions 44106. For example, the region 44106 may include a fastener region 44107, an intermediate region 44108, a coupler region 44109, and a cap interface region 44110.

  The fastener region 44107 may mean a portion of the shaft sleeve body 42103 located between the sleeve body lower end 433192 and the hole bottom surface 43111 (FIG. 31). The coupler region 44109, on the other hand, extends from the lowest point of the sleeve coupler set 423110 (eg, the point of the sleeve coupler set 423110 closest to the sleeve body lower end 433192 (FIG. 31)) to the highest point of the sleeve coupler set 423110 (eg, sleeve It may mean a part of the shaft sleeve main body located from the lower end 433192 of the main body to the point of the sleeve coupler set 423110 farthest from the main body lower end 433192. On the other hand, the intermediate region 44108 may mean a portion of the shaft sleeve body 42103 between the fastener region 44107 and the coupler region 44109. Cap interface region 44110 may refer to a portion of shaft sleeve body 42103 that is opposite to coupler region 44109 relative to intermediate region 44108. Still referring to FIG. 32, the cap interface region 44110 (FIG. 32) may further include an upper ring 44115 (FIG. 32).

  When the golf club head 41101 (FIG. 29) is swung and / or manipulated to strike a golf ball, the fastener region 44107 and the coupler region 44109 can be under high stress. On the other hand, the intermediate region 44108 and / or the cap interface region 44110 may experience a lower stress than the high stress experienced by the fastener region 44107 and the coupler region 44109.

  By fixing the shaft sleeve 411100 (FIG. 29) to the shaft receiver 413200 (FIG. 29) with a fixing fastener, high stress cancellation in the fastener region 44107 can be assisted. Further, due to the high stresses that may be experienced in the coupler region 44109, the couplers of the sleeve coupler set 423110 have solid lobes configured to add additional thickness to the sleeve body wall of the shaft sleeve body 42103. May be. Thus, the coupler can reinforce the sleeve body wall in the coupler region 44109 to offset these high stresses in the coupler region 44109. The couplers of the sleeve coupler set 423110 can be sloped (eg, linearly or curvilinearly), with the coupler region 44109 furthest from the sleeve body lower end 433192 (eg, the coupler region 44109 is the cap interface region 44110). And the minimum thickness at the end of the coupler region 44109 closest to the sleeve body lower end 433192 (FIG. 31) (for example, the position where the coupler region 44109 connects to the intermediate region 44108). Have. For example, the maximum thickness may be about 0.75 inches thick. The minimum thickness may be about 0.020 inches thick. In many embodiments, the couplers of the sleeve coupler set 423110 (FIG. 30) can be sloped to provide continuity (eg, a smooth transition in thickness) between the intermediate region 44108 and the cap interface region 44110. it can.

  In some embodiments, the couplers in the sleeve coupler set 423110 may be symmetrical in profile. The coupler length of the sleeve coupler set 423110 may be about 0.38 inches or less (eg, a portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103), or about 0.26 inches or more ( For example, another portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103).

  In some embodiments, the coupler has a first portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 that is longer than another portion (eg, a portion that faces the first portion or faces 180 degrees). As such, the couplers of the sleeve coupler set 423110 may be asymmetric in contour. The coupler length of the sleeve coupler set 423110 may be about 0.38 inches or less (eg, the portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103), and may be about 0.260 inches or more (eg, , Another portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103). In many embodiments, the coupler of the sleeve coupler set 423110 (FIG. 30) is coupled to the end of the coupler region 44109 (FIG. 32) furthest from the sleeve body lower end 433192 (eg, the coupler region 44109 connects to the cap interface region 44110). Position) at the portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 closest to the sleeve axis of the shaft sleeve body 42103. The sleeve shaft may be similar or identical to the sleeve shaft 5150 (FIG. 5). In other words, the coupler of the sleeve coupler set 423110 (FIG. 30) has the sleeve axis and is the longest in the portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 that intersects the surface extending substantially perpendicular to the sleeve body lower end 433192. May be.

  On the other hand, when the golf club head 41101 is swung and / or manipulated to strike a golf ball, the stress applied to the intermediate region 44108 is lower, so that the sleeve body wall of the shaft sleeve body is in the coupler region 44109. It may be thinner in the middle region 44108 than part or all and / or the middle region 44108 may have holes or recesses to reduce the weight of the middle region 44108. For example, the sleeve body wall of the shaft sleeve body 42103 in the intermediate region 44108 may have a thickness (eg, an average thickness) of about 0.020 inches.

  Returning now to FIG. 31, in some embodiments, the shaft sleeve body 42103 may have a width (eg, an outer diameter). The outer diameter of the shaft sleeve body 42103 may be about 0.405 inches or more and about 0.445 inches or less. In a particular example, the outer diameter of the shaft sleeve body may be 0.425 inches.

  In some embodiments, the shaft hole may have a width (eg, diameter) (FIG. 31). The diameter of the shaft hole 433120 may decrease from the middle of the shaft hole to the hole bottom surface 43111. The diameter of the hole cap may be similar to or the same as the diameter of the intermediate shaft hole 433130. The diameter of the lower hole portion 43150 may be about 0.320 inches or more and about 0.360 inches or less. In a particular example, the hole bottom diameter may be 0.340 inches. The diameter of the intermediate shaft hole 433130 may be about 0.326 inches or more and 0.366 inches or less. In a particular example, the diameter of the intermediate shaft hole 433130 may be 0.346 inches. The diameter of the cap hole 42115 may be about 0.326 inches or more and 0.366 inches or less. In a particular example, cap hole 42115 may have a diameter of 0.346 inches.

  In various embodiments, the shaft sleeve body 42103 has an etched channel 43112 in the shaft hole 433120 to provide a more appropriate surface area for epoxy bonding the golf club shaft 41102 (FIG. 29) to the shaft sleeve body 42103. Can do. Etch channel 43112 is part of intermediate region 44108 (FIG. 32), such as coupler region 44109 (FIG. 32) and / or half of intermediate region 44108 (FIG. 32) closer to coupler region 44109 (FIG. 32), for example. Or you may arrange | position throughout.

  In these or other embodiments, the shaft sleeve body 42103 may have a receiving groove 43113 (eg, an undercut notch). As will be described in more detail below, the receiving groove 43113 (FIG. 31) communicates with and interlocks with the protrusion 45114 (FIG. 33) of the shaft sleeve cap 42104 to attach the shaft sleeve cap 42104 to the shaft sleeve body 42103. Can be fixed. Thus, in many embodiments, the receiving groove 43113 (FIG. 34) of the shaft sleeve body 42103 can complement the protrusion 45114 (FIG. 33). In some embodiments, the receiving groove 43113 may be disposed in the cap interface region 44110 (FIG. 32). In many embodiments, the receiving groove 43113 (FIG. 35B) may be located at the interface between the cap interface region 44110 (FIG. 32) and the coupler region 44109 (FIG. 32) (see also FIG. 31).

  Referring now to the previous drawings, FIG. 33A shows an upright side view of the shaft sleeve cap 42104 separated from the shaft sleeve body 42103 (FIG. 30), according to the embodiment of FIG. FIG. 33B shows an angled top view of the shaft sleeve cap 42104 separated from the shaft sleeve body 42103 (FIG. 30), according to the embodiment of FIG. 34 shows a cross-sectional view of the shaft sleeve cap 42104 along line XLV-XLV of FIG. 33A, according to the embodiment of FIG. The shaft sleeve cap 42104 may further include a cap wall 45040 (FIG. 33A). The cap wall may have an outer cap wall 45115 at one end of the cap wall and an inner cap wall 45120 opposite the outer cap wall.

  Referring to FIG. 33A, the shaft sleeve cap 42104 may have an upper cap region 45050 and a lower cap region 45060. Upper cap region 45050 may include an upper ring 45045 at the top of upper cap region 45050 and a lower edge shelf 45055 at the lower end of upper cap region 45050. The upper cap region 45050 increases in diameter from the top to the bottom to the bottom edge shelf 45055. Lower cap region 45060 has a smaller outer diameter than upper cap region 45050.

  The lower cap region 45060 may have a protrusion 45114 protruding from the outer cap wall 45115. The protrusion 45114 may have a lip extending from the outer cap wall 45115 (FIG. 34). Accordingly, the protrusion 45114 may have a width (eg, diameter) 45300 that is greater than the width 45200 of the remainder of the cap wall of the lower cap region 45060 and / or the diameter of the shaft hole 43120 (FIGS. 33A and 34). . The width 45400 of the lower end shelf 45055 of the upper cap region 45050 is larger than the width 45300 of the protrusion 45114 of the lower cap region 45060 (FIG. 34).

  The lower cap region 45060 of the shaft sleeve cap 41204 fits within the cap interface region 44110 and coupler region 44109 of the shaft sleeve body 42103 (FIG. 32). In one embodiment, the protrusion 45114 of the lower cap region 45060 of the shaft sleeve cap 41204 is received in a receiving groove 43113 (FIG. 34) to couple the shaft sleeve cap 41204 to and separate from the shaft sleeve body 42103. It may be arranged inside and outside. The receiving groove 43113 (FIG. 34) can complement the protrusion 45114 (FIG. 33) of the lower cap region 45060. In these embodiments, the protrusion 45115 can operate as a locking feature or snap into place between the receiving grooves 43113 (FIG. 34) of the shaft sleeve body 42103 (FIG. 32). In some embodiments, the protrusion 45115 can extend at an upward angle, allowing the shaft sleeve cap 41204 to bend when installed in the shaft sleeve body 42103 (FIG. 32). Still referring to FIG. 32, when the shaft sleeve cap 41204 is installed in the shaft sleeve body 42103, the lower end shelf 45055 of the shaft sleeve cap 42104 is above the upper ring 44115 in the cap interface area of the shaft sleeve body 42103 (FIG. 32). Attached to.

  The shaft sleeve cap 42104 may have a shaft hole 43120 (FIG. 33B). The shaft hole diameter 43130 is constant throughout both the upper cap region 45050 and the lower cap region 45060 (FIG. 34). Combining the shaft sleeve cap 42104 (upper and lower regions) with the cap interface region 44110 and coupler region 44109 of the shaft sleeve body 42103 prevents leaching of epoxy during the assembly process.

  The shaft sleeve cap 42104 may have one or more ribs 45202. One or more ribs 45202 project or extend into the shaft hole 43120 of the shaft sleeve cap 42104 parallel to each other from the upper cap region 45050 to the lower cap region 45060 (FIG. 33B) along the inner cap wall 45120. The ribs 45202 can provide additional sealing and can securely couple the shaft sleeve cap 41204 to the shaft sleeve body 42103. The ribs 45202 can further provide positive alignment of the golf club shaft 41102 within the shaft sleeve 411100.

  The shaft sleeve cap 42104 provides stability compared to the shaft sleeve body 42103 without the shaft sleeve cap 42104. (1) overall design of shaft sleeve cap 42104, (2) ribs 45202 on inner cap wall 45120 of shaft sleeve cap 42104, (3) protrusions 45115 on outer cap wall 45115 of shaft sleeve cap 42104, (4 A golf club shaft, individually or in any combination thereof, by combining)) a receiving groove 43113 in the shaft sleeve body 42103, and (5) a hole diameter that decreases from the middle of the shaft hole to the hole bottom surface 43111 of the shaft sleeve body 42103. 41102 can be centered within both the upper and lower portions of the shaft sleeve 411100, and the shaft 41102 of FIG. 29 can provide improved stability. Alignment increases the concentricity of the golf club shaft and reduces stress on the shaft during swinging of the golf club head and impact with the golf ball.

  These elements also, alone or in combination, provide damping (eg, vibration) and stress reduction between the golf club shaft 41102 (FIG. 29) and the shaft sleeve body 42103 (FIG. 29). For example, the shaft sleeve cap 42104 may function as a “shaft pillow” by increasing the concentricity of the golf club shaft 41102 (FIG. 30) within the shaft sleeve body 42103 (FIG. 31). In many embodiments, the concentricity of the golf club shaft 41102 (FIG. 29) within the shaft sleeve body 42103 (FIG. 30) may be strongly correlated with the durability of the golf club shaft 41102 (FIG. 31). Accordingly, (1) a rib 45202 on the inner cap wall 45120 of the shaft sleeve cap 42104, (2) a protrusion 45115 on the outer cap wall 45115 of the shaft sleeve cap 42104, (3) a receiving groove 43113 of the shaft sleeve body 42103, and (4) The diameter of the hole that decreases from the middle of the shaft hole to the hole bottom surface 43111 of the shaft sleeve body 42103, individually or in any combination thereof, allows the shaft sleeve cap 42104 to prevent damage to the golf club shaft 41102 (FIG. 29). And the overall life of the golf club head 41101 (FIG. 29) can be increased.

  Referring again to FIG. 30, the shaft sleeve body 42103 may comprise any suitable material. For example, in some embodiments, the shaft sleeve body 22103 may comprise a metal or metal alloy (eg, an aluminum alloy). In these examples, the aluminum alloy may include about 70% or more aluminum and about 75% or less aluminum. In more specific examples, the aluminum alloy may include about 70%, 71%, 72%, 73%, 74%, or 75% aluminum.

  The shaft sleeve cap 42104 may comprise any suitable material configured to allow the cap wall 25115 (FIG. 25) to elastically compress as described above. For example, the shaft sleeve cap 22104 may comprise a polymeric plastic material. The polymer plastic material may be a thermoplastic material or a soft polymer plastic with a Shore D durometer scale. The soft polymer plastic may be 40, 45, 50, 55 or 60 or less on the Shore D durometer scale. The soft polymer plastic may be 55 or less on the Shore D durometer scale. The polymeric plastic material may consist of polystyrene, vinyl chloride, polyvinyl chloride, nylon, polymethacrylate, rubber, polycarbonate, synthetic rubber or copolymers thereof.

  In many embodiments, the shaft sleeve body 42103 can have a shaft sleeve body mass and the shaft sleeve cap 42104 can have a shaft sleeve cap mass. Further, the shaft sleeve 411100 may have a shaft sleeve mass having a shaft sleeve body mass and a shaft sleeve cap mass. The shaft sleeve mass may be similar to the sleeve mass described above with respect to the sleeve 1100 (FIG. 1).

  In these or other embodiments, the shaft sleeve mass is about 4.0 grams or more, about 4.1 grams or more, about 4.2 grams or more, about 4.3 grams or more, about 4.4 grams or more, about 4 It may be greater than 0.5 grams, greater than about 4.6 grams, greater than about 4.7 grams, greater than about 4.8 grams, greater than about 4.9 grams, or greater than about 5.0 grams. Further, the shaft sleeve body mass may be greater than or equal to about 4.2 grams and less than or equal to about 4.8 grams. The shaft sleeve body mass may be 4.5 grams. Furthermore, the shaft sleeve cap mass is greater than about 3.8 grams, greater than about 3.9 grams, greater than about 4.0 grams, greater than about 4.1 grams, greater than about 4.2 grams, greater than about 4.3 grams. Or it may be about 4.4 grams or more. The shaft sleeve cap mass may be about 0.1 grams or more and about 0.7 grams or less. In various embodiments, the shaft sleeve mass may be about 0.4 grams less than the mass of the sleeve 1100 (FIG. 1). Further, the shaft sleeve mass combined with the fastener fastener mass may be greater than or equal to about 7.2 grams. Thus, in various embodiments, the shaft sleeve 411100 can provide a weight advantage over the shaft sleeve 1100 (FIG. 1).

  Referring to FIG. 29, a golf club head 41101 may have a disassembled club head mass and an assembled club head mass. The post-decomposition club head mass may be similar to the post-decomposition club head mass described above with respect to the golf club head 101 (FIG. 1), and the post-assembly club head mass may be post-assembly as described above with respect to the golf club head 101 (FIG. 1). It may be similar to the club head mass.

  In some embodiments, the club head mass after disassembly may be greater than or equal to about 185 grams and less than or equal to about 205 grams. In these or other embodiments, the club head mass after disassembly may be about 192 grams or more.

  In some embodiments, the post-assembly club head mass may be greater than or equal to about 188 grams and less than or equal to about 213 grams. In these or other embodiments, the post-assembly club head mass may be greater than or equal to about 199 grams.

  Further, the ratio of the shaft sleeve mass to the club head mass after disassembly may be about 2.0%, 2.2% or 2.4% or less. The ratio of the shaft sleeve mass to the club head mass after assembly may be about 1.95%, 2.16% or 2.35% or less, and the shaft sleeve mass and fixing fastener mass to the club head mass after disassembly. The ratio of the shaft sleeve mass and the fastening fastener mass to the post-assembly club head mass may be about 3%, 3.6%, or 3.8% or less. It may be .3%, 3.5% or 3.7% or less.

  On the other hand, the golf club head 41101 can have an assembled club head CG related to the assembled club head CG vertical distance, and the shaft sleeve 411100 can have a shaft sleeve CG related to the shaft sleeve CG vertical distance. Can do. In these embodiments, the assembled club head CG may be similar or identical to the assembled club head CG 1050 (FIG. 1), and the assembled club head CG vertical distance is determined by the assembled club head CG. The head CG vertical distance 1058 (FIG. 1) may be similar or identical, the shaft sleeve CG may be similar or identical to the shaft sleeve CG 1032 (FIG. 1), and / or the shaft sleeve CG. The vertical distance may also be similar or identical to the shaft sleeve CG vertical distance 1159, measured from the bottom of the club head (FIG. 1).

  In many embodiments, the shaft sleeve CG vertical distance of the shaft sleeve 411100 (FIG. 31) is about 0.052 inches (about 1.32 millimeters) or greater than the shaft sleeve CG vertical distance of the shaft sleeve 211100 (FIG. 23); It may be less than 0.092 inches (about 2.34 millimeters) or less. The shaft sleeve CG vertical distance of the shaft sleeve 411100 (FIG. 31) is more than about 0.042 inches (about 1.07 millimeters) and 0.062 inches (about 1.58) than the shaft sleeve CG vertical distance 1159 (FIG. 1). Mm) or less. The shaft sleeve CG vertical distance of the golf coupling mechanism 411000 may be not less than about 43.5 millimeters from the lower end of the sole of the golf club head 41101 and not more than about 47.0 millimeters from the lower end of the sole of the golf club head 41101. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is not less than about 43.5 millimeters, not less than about 43.6 millimeters, not less than about 43.7 millimeters from the sole lower end of the golf club head 41101, About 43.8 millimeters or more, about 43.9 millimeters or more, about 44.0 millimeters or more, about 44.1 millimeters or more, about 44.2 millimeters or more, about 44.3 millimeters or more, about 44.4 millimeters or more, about 44.5 millimeters or more, about 44.6 millimeters or more, about 44.7 millimeters or more, about 44.8 millimeters or more, about 44.9 millimeters or more, about 45.0 millimeters or more, about 45.1 millimeters or more, about 45 .2mm or more, about 45.3mm or more About 45.4 mm or more, about 45.5 mm or more, about 45.6 mm or more, about 45.7 mm or more, about 45.8 mm or more, about 45.9 mm or more, about 46.0 mm or more, About 46.1 millimeters or more, about 46.2 millimeters or more, about 46.3 millimeters or more, about 46.4 millimeters or more, about 46.5 millimeters or more, about 46.6 millimeters or more, about 46.7 millimeters or more, about It may be greater than 46.8 millimeters, greater than about 46.9 millimeters, or greater than about 47.0 millimeters. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is no more than about 43.5 millimeters, no more than about 43.6 millimeters, no more than about 43.7 millimeters from the bottom of the sole of the golf club head 41101, About 43.8 millimeters or less, about 43.9 millimeters or less, about 44.0 millimeters or less, about 44.1 millimeters or less, about 44.2 millimeters or less, about 44.3 millimeters or less, about 44.4 millimeters or less, about 44.5 mm or less, about 44.6 mm or less, about 44.7 mm or less, about 44.8 mm or less, about 44.9 mm or less, about 45.0 mm or less, about 45.1 mm or less, about 45 .2mm or less, approximately 45.3mm or less About 45.4 millimeters or less, about 45.5 millimeters or less, about 45.6 millimeters or less, about 45.7 millimeters or less, about 45.8 millimeters or less, about 45.9 millimeters or less, about 46.0 millimeters or less, About 46.1 millimeters or less, about 46.2 millimeters or less, about 46.3 millimeters or less, about 46.4 millimeters or less, about 46.5 millimeters or less, about 46.6 millimeters or less, about 46.7 millimeters or less, about It may be 46.8 millimeters or less, about 46.9 millimeters or less, or about 47.0 millimeters or less. The shaft sleeve CG vertical distance of the golf coupling mechanism 411000 may be 45.3 millimeters from the bottom end of the sole of the golf club head 41101. The sole lower end may be similar to or the same as the sole lower end 10141 (FIG. 1).

  In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is greater than or equal to about 32.0 millimeters, greater than or equal to about 32.1 millimeters, greater than or equal to about 32.3 millimeters from the bottom of the sole of the golf club head 41101; About 32.4 millimeters or more, about 32.5 millimeters or more, about 32.6 millimeters or more, about 32.7 millimeters or more, about 32.8 millimeters or more, about 32.9 millimeters or more, about 33.0 millimeters or more, about 33.1 millimeters or more, about 33.2 millimeters or more, about 33.3 millimeters or more, about 33.4 millimeters or more, about 33.5 millimeters or more, about 33.6 millimeters or more, about 33.7 millimeters or more, about 33 .8mm or more, about 33.9mm or less , About 34.0 mm or more, about 34.1 mm or more, about 34.2 mm or more, about 34.3 mm or more, may be about 34.4 mm, or about 34.5 mm or more. The shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is about 32.0 millimeters or less, about 32.1 millimeters or less, about 32.3 millimeters or less, about 32.4 millimeters or less from the sole lower end of the golf club head 41101. About 32.5 millimeters or less, about 32.6 millimeters or less, about 32.7 millimeters or less, about 32.8 millimeters or less, about 32.9 millimeters or less, about 33.0 millimeters or less, about 33.1 millimeters or less, about 33.2 millimeters or less, about 33.3 millimeters or less, about 33.4 millimeters or less, about 33.5 millimeters or less, about 33.6 millimeters or less, about 33.7 millimeters or less, about 33.8 millimeters or less, about 33 .9mm or less, about 34.0mm Or less, about 34.1 mm or less, about 34.2 mm or less, about 34.3 mm or less, about 34.4 mm or less, or may be about 34.5 mm or less. The shaft sleeve CG vertical distance of the golf coupling mechanism may be 33.6 millimeters from the bottom end of the sole of the golf club head 41101.

  Referring to the previous drawing, FIG. 36 shows a flowchart of a method 47000 according to one embodiment. In many embodiments, the method 47000 may comprise a method of manufacturing a golf club head of one or more parts of the golf club head. The golf club head may be similar or identical to golf club head 41101 (FIG. 29).

  The method 47000 may include an operation 47001 for preparing a shaft sleeve. The shaft sleeve may be similar or identical to the shaft sleeve 411100 (FIG. 30). FIG. 36 illustrates an exemplary operation 47001 according to the embodiment of FIG.

  For example, in FIG. 36, operation 47001 may include operation 48001 for preparing (eg, manufacturing) a shaft sleeve body. The shaft sleeve body may be similar or identical to the shaft sleeve body 42103 (FIG. 37).

  Further, operation 47002 may include an operation 48002 for preparing (eg, manufacturing) a shaft sleeve cap. The shaft sleeve cap may be similar or identical to the shaft sleeve cap 42104 (FIG. 38).

  Referring now again to FIG. 36, the method 47000 may include an operation 47002 for preparing (eg, manufacturing) a golf club head. The golf club head may be similar or identical to golf club head 41101 (FIG. 29). In some embodiments, operation 47001 may be performed before operation 47002 and vice versa. In other embodiments, operations 47001 and 47002 may be performed substantially simultaneously.

  Further, the method 47000 may comprise an operation 47003 for inserting the shaft sleeve into the hosel hole of the golf club head. The hosel hole may be similar or identical to the hosel hole described above with respect to the golf club head 41101 (FIG. 29).

  The method 47700 may also include an operation 47004 for inserting the golf club shaft into the shaft hole. The golf club shaft may be similar or identical to the golf club shaft 41102 (FIG. 29), and the shaft hole may be similar or identical to the shut hole 433120 (FIG. 31).

  On the other hand, method 47000 may include an operation 47005 for inserting a shaft sleeve cap into the shaft hole. In some embodiments, operation 47004 may be performed before operation 47005 or vice versa. In other embodiments, operation 47004 and operation 47005 may be performed substantially simultaneously. In further embodiments, operation 47003 may be performed before operation 47004 and / or operation 47005 and vice versa. In many embodiments, one or more of operations 47001 to 47003 may be performed before one or more of operations 47004 to 47005, or vice versa (FIG. 37).

  Still further, the method 47000 may include an operation 47006 for securing the shaft sleeve to the golf club head hosel with a fastener. The hosel may be similar or identical to the hosel described above with respect to the golf club head 41101 (FIG. 31) and the fastener may be similar to the fastener described above with respect to the golf club head 21101 (FIG. 31) or It may be the same.

  Although the golf coupling mechanism and related methods have been described herein with reference to specific embodiments, various modifications can be made without departing from the spirit or scope of the present disclosure. As an example, a sleeve coupler set 3110 (FIGS. 3 to 7, 10, 14 to 17), a sleeve coupler set 12110 (FIG. 12), a sleeve coupler set 223110 (FIG. 22), and / or a sleeve coupler set 411100, Embodiments that may have only two sleeve couplers, as well as receiver coupler set 3210 (FIGS. 3-4, 8-9, 11, 14-17), receiver coupler set 13210 (FIG. 13), shaft There may be embodiments where the receiver coupler set of receiver 213200 (FIG. 21) and / or the receiver coupler set of shaft receiver 413200 (FIG. 29) may have only two receiver couplers. In such embodiments, only two configurations may be possible between the shaft sleeve and the shaft receiver, and the golf coupler set may allow adjustment between two lie angles or two loft angles. Of course, a sleeve coupler set having three, five, six, seven, eight or more sleeve couplers and three, five, six, seven, eight or more There may be embodiments in which the number of possible lie angle and loft angle combinations is increased correspondingly with a receiver coupler set having more receiver couplers.

  Such modifications and other further examples have been described in the foregoing description. Other permutations of different embodiments having one or more of the various figure features are contemplated as well. Accordingly, the specification, claims and drawings of the specification are intended to be illustrative of the scope of the disclosure and are not intended to be limiting. The scope of this application shall be limited only to the extent required by the appended claims.

  The golf coupling mechanisms and associated methods described herein may be implemented in various embodiments, and the foregoing description of certain of these embodiments is for all possible embodiments. It does not necessarily mean a complete description. Rather, the detailed description of the drawings and the drawings themselves disclose at least one preferred embodiment and may disclose alternative embodiments.

  In addition, benefits, other advantages, and solutions to problems with particular embodiments have been described. However, any benefit, advantage, solution to the problem and any one or more factors that may cause or become more significant any benefit, advantage or solution are such benefits, advantages, solutions or elements. Unless expressly stated otherwise in such claims, they should not be construed as essential or essential features or elements of any or all of the claims.

  Golf rules may change frequently (for example, new rules may be adopted by golf standards associations and / or governing bodies such as the United States Golf Association (USGA), the British Golf Association (R & A), etc.) Golf equipment associated with the devices, methods and articles of manufacture described herein may conform to any particular point-in-time golf rules or May not fit. Accordingly, golf equipment associated with the devices, methods, and articles of manufacture described herein may be advertised, offered for sale, and / or sold as conforming or non-conforming golf equipment. The apparatus, methods and articles of manufacture described herein are not limited in this regard.

  Although the above examples may be described in the context of driver-type golf clubs, the devices, methods, and articles of manufacture described herein are fairway wood-type golf clubs, hybrid-type golf clubs, iron-type golfs. It may be applicable to other types of golf clubs such as clubs, wedge type golf clubs or putter type golf clubs. Alternatively, the devices, methods and articles of manufacture described herein may be applicable to other types of sports equipment such as hockey sticks, tennis rackets, fishing rods, ski poles and the like.

  Further, the embodiments and limitations disclosed herein are not explicitly claimed in (1) the claims, and (2) claimed under the doctrine of equivalents. If it is an explicit element and / or potential equivalent of a limitation in a paragraph, it will not be made available to the public under a documentary of decision.

Claims (18)

A golf club head,
A sole portion including a lower end portion of the sole, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, a rear portion, and a front portion facing the rear portion, A club head body having the front portion including a surface and a hosel;
A shaft sleeve insertable into the hosel and configured to couple a golf club shaft with the hosel;
A fastening fastener configured to be coupled to a sleeve lower end of the shaft sleeve to secure the shaft sleeve in the hosel;
The hosel has a hosel hole configured to receive the shaft sleeve;
The shaft sleeve is
A shaft hole configured to receive an end of the golf club shaft;
A shaft sleeve body having a sleeve body outer wall, at least one coupler in the sleeve body outer wall, and a receiving groove ;
A shaft sleeve cap configured to be coupled to the shaft sleeve body;
The shaft sleeve cap has a cap hole, a cap wall, and a lip extending outward from the cap wall;
The inner surface of the cap hole has one or more alignment function parts that interact with the golf club shaft,
The cap wall has one or more slits that elastically compress the cap wall;
The lip of the shaft sleeve cap engages the receiving groove of the shaft sleeve body;
The club head body further has a club head center of gravity after assembly when the club head body is assembled with the shaft sleeve and the fastening fastener;
The post-assembly club head center of gravity is located at a post-assembly club head CG vertical distance with respect to the lower end of the sole,
With the shaft sleeve fixed in the hosel and when the golf club head is in the address position, the shaft sleeve center of gravity is at a shaft sleeve CG vertical distance of about 46.5 mm or less with respect to the lower end of the sole. The shaft sleeve CG vertical distance is at least about 7.6 mm greater than the post-assembly club head CG vertical distance;
Golf club head. The shaft sleeve body has an intermediate region;
The shaft sleeve body has a sleeve body wall;
The golf club head of claim 1, wherein the sleeve body wall has an intermediate region thickness of about 0.020 inches in the intermediate region. The shaft sleeve body has a coupler region;
The shaft sleeve body has a sleeve body wall;
The sleeve body wall has a coupler region thickness that varies from a maximum thickness of the sleeve body wall to a minimum thickness of the sleeve body wall in the coupler region;
The maximum thickness of the sleeve body wall is about 0.75 inches or less;
The golf club head of claim 1, wherein the minimum thickness of the sleeve body wall is about 0.020 inches or greater. The hosel hole has at least one receiver configured to engage the at least one coupler;
The golf club head of claim 1, wherein when the hosel hole receives the shaft sleeve, the at least one coupler engages the at least one receiver to limit rotation of the shaft sleeve relative to the hosel.   The golf club head according to claim 1, wherein the shaft sleeve cap is detachably coupled to the shaft sleeve body. The at least one coupler has a plurality of couplers;
The plurality of couplers include a first coupler and a second coupler,
The golf club head according to claim 1, wherein a coupler length of the first coupler is the same as a coupler length of the second coupler. The at least one coupler has a coupler length;
The golf club head of claim 1, wherein the coupler length is about 0.260 inches or greater and about 0.38 inches or less. Before Symbol shaft sleeve cap has a protruding portion,
The golf club head of claim 1, wherein the receiving groove is configured to receive the protrusion when the shaft sleeve body is coupled to the shaft sleeve cap. The shaft sleeve cap has at least invite Bed,
The golf club head of claim 1, wherein the at least one rib is configured to securely couple to the shaft sleeve cap and position the shaft sleeve cap in the center. The shaft sleeve cap, one or more re blanking extending Previous Symbol cap holes have a,
The golf club head of claim 1, wherein the one or more ribs center the golf club shaft within the shaft hole when the shaft hole receives the end of the golf club shaft. The shaft sleeve has a shaft sleeve mass of about 4.5 grams;
The shaft sleeve body has a shaft sleeve body mass of about 4.1 grams or less;
The shaft sleeve cap has a shaft sleeve cap mass of about 0.3 grams or more and about 1.0 grams or less;
The golf club head of claim 1, wherein the golf club head is at least one of the following. When the shaft sleeve cap is coupled to the shaft sleeve body and the fastener secures the shaft sleeve to the hosel, the golf club head has a club head mass after assembly;
The golf club head of claim 1, wherein the assembled club head mass is about 199 grams or less. When the shaft sleeve cap is coupled to the shaft sleeve body and the fastener secures the shaft sleeve to the hosel, the golf club head has a club head mass after assembly;
The shaft sleeve has a shaft sleeve mass;
The golf club head of claim 1, wherein a ratio of the shaft sleeve mass to the assembled club head mass is about 2.2% or less. The golf club head has a club head mass after disassembly,
The shaft sleeve has a shaft sleeve mass;
The golf club head of claim 1, wherein a ratio of the shaft sleeve mass to the post-decomposition club head mass is about 2.3% or less.   The golf club head of claim 1, wherein the shaft sleeve CG vertical distance is about 45.3 millimeters or less with respect to the sole lower end. When the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve height, and the shaft sleeve height is greater than or equal to about 1.78 inches and less than or equal to about 1.82 inches;
When the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve body height, and the shaft sleeve body height is not less than about 1.529 inches and not more than about 1.569 inches. Or
When the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve has a shaft sleeve cap height, and the shaft sleeve cap height is about 0.46 inches or more and about 0.50 inches or less. Or
The golf club head of claim 1, wherein the golf club head is at least one of the following.   The golf club head of claim 1, wherein the shaft sleeve cap includes a soft polymer plastic, and the soft polymer plastic may be 55 or less on a Shore D durometer scale. A golf club head,
A sole portion including a lower end portion of the sole, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, a rear portion, and a front portion facing the rear portion, A club head body having the front portion including a surface and a hosel;
A shaft sleeve insertable into the hosel and configured to couple a golf club shaft with the hosel;
A fastening fastener configured to be coupled to a sleeve lower end of the shaft sleeve to secure the shaft sleeve in the hosel;
The hosel has a hosel hole configured to receive the shaft sleeve;
The shaft sleeve is
A shaft hole configured to receive an end of the golf club shaft;
A shaft sleeve body having a sleeve body outer wall and at least one coupler on the sleeve body outer wall;
A shaft sleeve cap configured to be coupled to the shaft sleeve body;
The shaft sleeve body further comprises an intermediate region and a sleeve body wall;
The shaft sleeve has a shaft sleeve mass of about 4.5 grams;
The shaft sleeve body has a shaft sleeve body mass of about 4.1 grams or less;
The shaft sleeve cap has a cap hole, a cap wall, and one or more ribs extending into the cap hole;
When the shaft hole receives the end of the golf club shaft, the one or more ribs center the golf club shaft within the shaft hole;
The shaft sleeve cap is detachably coupled to the shaft sleeve body,
The cap wall has one or more slits that elastically compress the cap wall when the shaft sleeve cap is inserted into and removed from the shaft sleeve body.
The club head body further has a club head center of gravity after assembly when the club head body is assembled with the shaft sleeve and the fastening fastener;
The post-assembly club head center of gravity is located at a post-assembly club head CG vertical distance with respect to the lower end of the sole,
When the golf club head is in the address position with the shaft sleeve fixed in the hosel, the center of gravity of the shaft sleeve is about 43.5 millimeters or more and about 47.0 millimeters or less with respect to the lower end portion of the sole. A shaft sleeve CG vertical distance, wherein the shaft sleeve CG vertical distance is at least about 7.6 mm greater than the post-assembly club head CG vertical distance.

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