JP6715999B2 - Golf club with hosel insert and related methods - 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. It is a continuation-in-part application of U.S. patent application Ser. No. 14/282,786, filed May 20, 2014, which claims benefit. U.S. patent application Ser. No. 14/282,786 is (i) U.S. patent application Ser. No. 13/795,653, filed Mar. 12, 2013; (ii) Mar. 24, 2012. U.S. patent application Ser. No. 13/429,319, (iii) filed May 10, 2012, U.S. patent application Ser. No. 13/468,663, (iv) filed May 10, 2012 U.S. Patent Application No. 13/468,675, and (v) U.S. Patent Application No. 13/735,123, filed Jan. 7, 2013.

U.S. Patent Application No. 13/429,319 is U.S. Provisional Patent Application No. 61/590,232, filed January 24, 2012, and U.S. Provisional Patent, filed Aug. 31, 2011. Claim the benefit of application No. 61/529,880. Further, US Patent Application No. 13/468,663 and US Patent Application No. 13/468,675 are each a continuation-in-part application of US Patent Application No. 13/429,319. .. Similarly, U.S. Patent Application No. 13/468,677 is a continuation application of U.S. Patent Application No. 13/429,319.

On the other hand, U.S. Patent Application No. 13/735,123 is U.S. Patent Application No. 13/468,663, filed May 10, 2012, U.S. Patent Application, filed May 10, 2012. No. 13/468,675 and U.S. Patent Application No. 13/468,677, filed May 10, 2015, which is a continuation-in-part application.

US Provisional Patent Application No. 62/107,240, US Provisional Patent Application No. 62/254,081, US Patent Application No. 14/282,786, US Patent Application No. 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 associated methods.

Some sports, such as golf, require equipment with features that are selectable or specifically adaptable to individual characteristics or preferences. For example, the recommended club shaft type, club head type and/or club head loft angle 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, unalterable coupling mechanism between its golf club shaft and golf club head. Therefore, it is not necessary to have a golf club with such a fixed coupling mechanism to try various combinations of club shafts, club heads, loft angles and/or lie angles when determining equipment suitable for an individual. Should be available to many. In addition, if an individual's characteristics or preferences change, his or her golf equipment cannot be adjusted to accommodate such changes. Although the adjustable coupling mechanism may be configured to provide the flexibility to variably set various features of such golf clubs, the lack of coupling in the golf club head and golf club shaft coupling or This can lead to instability leading to stress concentrations. In view of the above, further developments in golf coupling mechanisms and related methods will enhance the utility 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.

FIG. 6 illustrates a front perspective view of a golf club head having a golf coupling mechanism, according to an example of the present disclosure. 2 is a top perspective view of a golf club head having the golf coupling mechanism of FIG. 1. FIG. 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 of FIG. 4 shows a cross-sectional view of the golf club head and golf coupling mechanism taken along section line IV-IV of FIG. FIG. 2A shows a side view of a shaft sleeve separated from a golf club head. FIG. 6 shows a sectional view of the shaft sleeve along the section line VI-VI in FIG. 5. Figure 7 shows a sectional view of the shaft sleeve along the section line VII-VII in Figure 5; FIG. 2 is 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. 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. FIG. 6 shows a side view of a portion of a sleeve coupler set of shaft sleeves. FIG. 6 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 sleeves of FIGS. 1-7 and 10. FIG. 12 shows a side perspective view of a portion of a receiver coupler set for a shaft receiver similar to the shaft receivers of FIGS. 1-4, 8-9 and 11. FIG. 6 shows a top cross-sectional view of the golf coupling mechanism of the first configuration, taken along section line XIV-XIV in FIG. 4. FIG. 6 shows a top cross-sectional view of the golf coupling mechanism of the second configuration, taken along section line XIV-XIV in FIG. 4. FIG. 6 shows a top cross-sectional view of the third configuration of the golf coupling mechanism taken along the line XIV-XIV of FIG. 4 with the shaft sleeve removed from the golf coupling mechanism. FIG. 6 shows a top cross-sectional view of the golf coupling mechanism of the fourth configuration taken along line XIV-XIV of FIG. 4 with the shaft sleeve removed from the golf coupling mechanism. 5 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. 11 shows a comparison of stagnant drag wake areas for each hosel of different golf club heads 1910 and 1920. 20 shows a chart of drag as a function of open face angle for the hosel diameter of the golf club head of FIG. FIG. 3A illustrates a front perspective view of a golf club head having a golf coupling mechanism, according to one embodiment. 22 illustrates a side view of a shaft sleeve of a golf coupling mechanism of a golf club head separated from the golf club head according to the embodiment of FIG. 21. FIG. FIG. 23 shows a cross-sectional view of the shaft sleeve taken along line XXIII-XXIII of FIG. 22, according to the embodiment of FIG. 21. 22 shows a side view of a shaft sleeve body of a shaft sleeve separated from a shaft sleeve cap of the shaft sleeve, according to the embodiment of FIG. 21. FIG. 22 illustrates a side view of a shaft sleeve cap separated from a shaft sleeve body, according to the embodiment of FIG. 21. FIG. FIG. 22 shows an elevation view of a shaft sleeve cap separated from the shaft sleeve body, according to the embodiment of FIG. 21. 3 shows a flowchart of a method according to one embodiment. 28 illustrates an exemplary operation of preparing a shaft sleeve according to the embodiment of FIG. FIG. 3A illustrates a front perspective view of a golf club head having a golf coupling mechanism, according to one embodiment. FIG. 30 illustrates a side view of a shaft sleeve of a golf coupling head golf coupling mechanism separated from the golf club head according to the embodiment of FIG. 29. FIG. FIG. 30 shows a cross-sectional view of the shaft sleeve along the line XXXIII-XXXIII of FIG. 30, according to the embodiment of FIG. 29. 30 shows a side view of a shaft sleeve body of a shaft sleeve separated from a shaft sleeve cap of the shaft sleeve, according to the embodiment of FIG. 29. FIG. FIG. 30 illustrates a side view of a shaft sleeve cap separated from a shaft sleeve body according to the embodiment of FIG. 29. FIG. 30 shows a top angled view of the shaft sleeve cap separated from the shaft sleeve body, according to the embodiment of FIG. 29. FIG. FIG. 33B illustrates a cross-sectional view of the shaft sleeve cap along line XLVV-XLVV of FIG. 33B, according to the embodiment of FIG. 29. FIG. 30 illustrates a top view of a shaft sleeve cap separated from a shaft sleeve body, according to the embodiment of FIG. 29. FIG. 30 shows a top view of a shaft sleeve body separated from the golf head, according to the embodiment of FIG. 29. 3 shows a flowchart of a method according to one embodiment. FIG. 36 illustrates an exemplary operation of preparing a shaft sleeve according to the embodiment of FIG. 35.

For the sake of simplicity and clarity of the drawings, the drawings show general structures, and descriptions and details of known features and techniques may be omitted to avoid unnecessarily obscuring the present disclosure. .. In addition, the elements in the figures are not necessarily drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help improve understanding of embodiments of the present disclosure. The same reference numbers in different figures identify the same elements.

Where the term "first", "second", "third", "fourth", etc. is used in the specification and claims, it is used to distinguish between similar elements. , Not necessarily to indicate any particular sequential or chronological order. The term thus used is such that the embodiments described herein are operable, for example, in other orders than those illustrated or otherwise described herein. In addition, it should be understood that they can be exchanged under appropriate circumstances. Furthermore, the terms “comprising” and “having” and any variations thereof shall include non-exclusive inclusions, and any process, method, system, article, device or apparatus that includes a listing of elements is not necessarily limited to these elements. Not included, or may include other elements not explicitly described or specific to such process, method, system, article, device or apparatus.

Where the description and claims include terms such as “left”, “right”, “front”, “rear”, “top”, “bottom”, “top”, “bottom”, etc. , And not necessarily for describing permanent relative positions. The term thus used refers to the orientation in which the embodiments of the apparatus, methods and/or articles of manufacture described herein are illustrated, for example, herein or otherwise. It should be understood that it can be replaced under appropriate circumstances so that it can be operated in other orientations.

The terms "couple," "coupled," "couples," "coupled," etc., are to be understood broadly and include two or more elements mechanically or It should mean connecting in any other way. The coupling (mechanical or otherwise) may be of any length of time, eg permanent or semi-permanent or just a moment.

The absence of words such as "detachable" and "detachable" near the word "coupled" does not mean that the object's bond or the like is removable or not removable. Absent.

As defined herein, two or more elements are "integral" if they include the same component. As defined herein, two or more elements are "non-integral" if they each include different components.

Some embodiments include a golf club head. The golf club head has a club head body, and the golf club head body includes a sole portion including a sole lower end portion, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, and a rear portion. And a front part facing the rear part and a hosel. The front portion has a striking surface. The golf club head also has a shaft sleeve insertable into the hosel and configured to couple the golf club shaft with the hosel. 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 the 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. When the golf club head is in the address position with the shaft sleeve secured in the hosel, the center of gravity of the shaft sleeve may be located at a shaft sleeve CG vertical distance of about 46 millimeters or less relative to the lower end of the sole.

In these or other embodiments, the shaft sleeve body may have an intermediate region and the shaft sleeve body may have a sleeve body wall, the sleeve body wall having an intermediate region of about 0.020 inches. 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 has a maximum thickness of the sleeve body wall in the coupler region. To a minimum thickness of the sleeve body wall, the maximum thickness of the sleeve body wall may be about 0.75 inches or less, and the minimum thickness of the sleeve body wall may be The length 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 at least one coupler, and when the hosel hole receives the shaft sleeve, the at least one coupler is It may engage at least one receiver to 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, at least one coupler may have multiple couplers, and the multiple couplers may have first and second couplers, and the coupler length of the first coupler is The length may be different from the coupler length of the second coupler.

In these or other embodiments, 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 configured to allow the cap wall to axially compress. Good.

In these or other embodiments, the shaft sleeve cap may have a cap hole and one or more ribs that extend into the cap hole, and when the shaft hole receives the end of the golf club shaft, 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 greater than or equal to about 0.3 grams and less than or equal to about 1.0 grams.

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 secured to the shaft sleeve. When secured to the hosel, the golf club head may have an assembled club head mass, and the assembled 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 secured to the shaft sleeve. When secured to the hosel, the golf club head may have an assembled club head mass, the shaft sleeve may have a shaft sleeve mass, and the ratio of the shaft sleeve mass to the assembled 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 about 45.3 millimeters or more with respect to the sole bottom.

In these or other embodiments, the shaft sleeve has a shaft sleeve height when the shaft sleeve body is coupled to the shaft sleeve cap, the shaft sleeve height being greater than or equal to about 1.78 inches and less than or equal to about 1.82 inches. 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 about 1.529 inches or more and about 1.569 inches or less, And/or 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 greater than or equal to about 0.46 inches and less than or equal to about 0.50 inches. Good.

A further embodiment includes a golf club head. The golf club head has a club head body, and the golf club head body includes a sole portion including a sole lower end portion, a top portion facing the sole portion, a heel portion, a toe portion facing the heel portion, and a rear portion. And a front part facing the rear part and a hosel. The front portion has a striking surface. The golf club head also has a shaft sleeve insertable into the hosel and 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. The shaft sleeve, on the other hand, has a shaft sleeve body having (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. The shaft sleeve body may further have 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 The shaft can be centrally located 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 center of gravity of the shaft sleeve is 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.

Another embodiment has a method. The method may include providing a shaft sleeve. On the other hand, the step of preparing the shaft sleeve may include the step of preparing the shaft sleeve main body and the step of preparing the shaft sleeve cap. Also, the shaft sleeve can 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 body and a hosel, the golf club head body including a sole portion including a sole lower end portion, a top portion facing the sole portion, a heel portion, and a heel portion. May have a toe portion that faces the rear portion, a rear portion, and a front portion that faces the rear portion. The front portion may have a striking surface. Furthermore, the hosel may have a hosel hole configured to receive the shaft sleeve. The shaft sleeve also includes (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. When the golf club head is in the address position with the shaft sleeve secured in the hosel, the center of gravity of the shaft sleeve may be located at a shaft sleeve CG vertical distance of about 46 millimeters or less relative to the lower end of the sole.

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

Referring to the drawings, FIG. 1 illustrates 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 golf club head 101 taken along line III-III of FIG. 2 showing golf coupling mechanism 1000 with shaft sleeve 1100 inserted into shaft receiver 3200. FIG. 4 shows a cross-sectional view of golf club head 101 and golf coupling mechanism 1000 taken along line IV-IV of FIG.

In this embodiment, the golf coupling mechanism 1000 has a shaft sleeve 1100 configured to be coupled to the end of a golf club shaft, such as the golf club shaft 102 (FIG. 1). FIG. 5 shows a side view of shaft sleeve 1100 separated from golf club head 101 (FIG. 1). FIG. 6 shows a cross-sectional view of shaft sleeve 1100 taken along line VI-VI of FIG. In this example, the shaft sleeve 1100 has a shaft hole 3120 configured to receive the end of the golf club shaft 102. Shaft sleeve 1100 also has a sleeve shaft 5150 that extends from sleeve upper end 1191 to sleeve lower end 3192 along the longitudinal centerline of shaft sleeve 1100. In this embodiment, the sleeve outer wall 3130 is a right angle cylinder and the sleeve outer wall 3130 is a shaft hole within the sleeve outer wall 3130 such that at least a portion of the sleeve outer wall 3130 is substantially parallel to the sleeve axis 5150. It borders 3120. In other words, in this embodiment, the sleeve shaft 5150 is the center of the sleeve outer wall 3130. In this example, the shaft hole 3120 extends coaxially with the shaft hole axis 6150 and is angled with respect to the sleeve axis 5150 and is therefore non-coaxial with the sleeve axis 5150. In this embodiment, the shaft hole axis 6150 forms an angle of about 0.5 degrees with the sleeve axis 5150, but such an angle is about 0.2 degrees to about 4 degrees with respect to the sleeve axis 5150. There may be an example such that 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 hole axis 6150 may be substantially collinear with the sleeve axis 5150 so that the sleeve outer wall 3130 and the shaft hole 3120 may be substantially concentric.

Shaft sleeve 1100 has a sleeve coupler set 3110 having one or more couplers protruding from sleeve outer wall 3130. FIG. 7 shows a cross-sectional view of shaft sleeve 1100 with sleeve coupler set 3110 taken along line VII-VII of 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, and the sleeve coupler 3112 extends along the outer peripheral portion 7191 of the sleeve outer wall 3130. The sleeve coupler 7115 is arranged to face the sleeve coupler 5116, and the sleeve coupler 7115 is arranged to face the sleeve coupler 5116. As can be seen from FIG. 7, in the present embodiment, the sleeve coupler set 3110 has alternating concave and convex surfaces formed on the outer peripheral portion 7191.

The sleeve couplers of sleeve coupler set 3110 have arcuate surfaces configured to limit rotation of shaft sleeve 1100 relative to golf club head 101 when shaft sleeve 1100 is inserted and secured in shaft receiver 3200. For example, as seen in FIGS. 3, 5 and 7, (a) sleeve coupler 3111 has a curved arcuate surface 3151 over the outer region of sleeve coupler 3111 and (b) sleeve coupler 3112 is , (C) the sleeve coupler 5116 has a curved arcuate surface 5156 over the exterior region of the sleeve coupler 5116, and (d) the sleeve coupler 5116 has a curved arcuate surface 5156 over the exterior region of the sleeve coupler 3116. 7115 has an arcuate surface 7155 that is curved over the outer area of the sleeve coupler 7115.

Golf coupling mechanism 1000 also has a shaft receiver 3200 configured to receive shaft sleeve 1100, as seen in FIGS. FIG. 8 shows 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 taken along line III-III of FIG. 2 with the shaft sleeve 1100 removed from the golf club head 101.

In this example, the shaft receiver 3200 is integral with the hosel 1015 of the club head 101, but the shaft receiver 3200 is separate from the hosel 1015, and may include, for example, an adhesive, a thread mechanism and/or bolts or rivets. There may be embodiments that may be coupled to 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 in which the golf club head 101 may have a head hole in its crown or top rather than the hosel 1015. In such an embodiment, shaft receiver 3200 may also be part of or coupled to such a head hole.

Shaft sleeve 1100 is configured to be inserted into shaft receiver 3200 and may be subdivided into several parts. For example, the shaft sleeve 1100 has a sleeve insert 3160 bounded by an outer sleeve 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 example, the shaft sleeve 1100 also has a sleeve top portion 3170 configured to remain exterior to the shaft receiver 3200 when the shaft sleeve 1100 is secured within the shaft receiver 3200. However, there may be other examples without the sleeve top portion 3170 and/or similar to the shaft sleeve 1100, but having a shaft sleeve configured to be entirely inserted into the shaft receiver 3200.

The shaft receiver 3200 has a hosel outer wall 3240, and has a receiver inner wall 3230 configured to come into contact with the sleeve insertion portion 3160 of the shaft sleeve 1100 and the sleeve outer wall 3130 when inserted into the shaft receiver 3200. Shaft receiver 3200 also includes a receiver coupler set 3210 configured to engage coupler set 3110 of shaft sleeve 1100 and limit rotation of shaft sleeve 1100 relative to shaft receiver 3200. As shown in FIG. 8, in the present 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, The receiver coupler 8218 faces the receiver coupler 8217.

The receiver couplers of receiver coupler set 3210 within shaft receiver 3200 have arcuate surfaces that are complementary to the arcuate surfaces of sleeve coupler set 3110 of shaft sleeve 1100. For example, (a) the receiver coupler 3213 has a curved arcuate surface 3253 over the 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. (B) the receiver coupler 3214 has a curved arcuate surface 3254 over the interior region of the receiver coupler 3214 (FIG. 8 ), the arcuate surface 3254 of the receiver coupler 3214 being Complementary to the arcuate surface 3152 of the sleeve coupler 3112 (FIG. 7), (c) the receiver coupler 8217 has a curved arcuate surface 8257 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), and (d) the receiver coupler 8218 has a curved arcuate surface 8258 over the interior region of the receiver coupler 8218. 8 (FIG. 8), the arcuate surface 8258 of the receiver coupler 8218 is complementary to the arcuate surface 5156 of the sleeve coupler 5116 (FIG. 7).

In this embodiment, the arcuate surface of sleeve coupler set 3110 and the arcuate surface of receiver coupler set 3210 are curved over their respective sleeve and receiver couplers. 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. As seen in FIGS. 7 and 10, in this example, the arcuate surface 5156 of the sleeve coupler 5116 has a horizontal radius of curvature 7176 and 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. Also, in this example, the arcuate surface of the sleeve coupler set 3110 has a vertical taper ring that decreases in thickness toward the sleeve lower end 3192 of the shaft sleeve 1100 and toward the sleeve axis 5150 (FIGS. 5-6). ). For example, as seen in FIG. 10, the arcuate surface 5156 of the sleeve coupler 5116 has a vertical taper ring 10186 and 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 taper ring 10182. Although not shown in FIG. 10, arcuate surface 7155 of sleeve coupler 7115 also has a vertical taper ring similar to vertical taper ring 10186 of 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 example, the arcuate surface 8258 of the receiver coupler 8218 causes the horizontal radius of curvature 7176 of the sleeve coupler 5116 (FIGS. 7, 10). ), and the arcuate surface 3253 of the receiver coupler 3213 has a horizontal radius of curvature 8173 that is complementary to the horizontal radius of curvature 7171 of the sleeve coupler 3111 (FIG. 7). 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 (FIG. 7) of the sleeve coupler 3112, and the arcuate surface 8257 of the receiver coupler 8217 is the horizontal curvature radius of the sleeve coupler 7115. It has a horizontal radius of curvature 8277 that is complementary to radius 7175 (FIG. 7).

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

In this embodiment, the vertical tapering of the arcuate surface of sleeve coupler set 3110 is substantially linear, as seen in the profile view of vertical tapering 10181 and 10182 of sleeve couplers 3111 and 3112 in FIG. Linearly decreases. 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 the sleeve coupler set 3110 and the arcuate surface of the receiver coupler set 3210 includes large or infinite vertical radii of curvature that are substantially straight. May be considered as a thing.

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

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

Different sleeve couplers and receiver couplers of the present disclosure may have curvatures within a corresponding specific range. For example, referring to FIGS. 7 and 10, the horizontal radii of curvature 7171, 7172, 7175 and 7176 of the sleeve coupler set 3110 are each about 0.175 inches (4.45 millimeters (mm)), 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 complementary to or the same as or similar to the horizontal radii of curvature 7171, 7172, 7175 and 7176 (FIG. 7, FIG. 10), respectively. Good. In addition, the horizontal radii of curvature of the sleeve coupler set 12110 and receiver coupler set 13210 in the embodiment of FIGS. 12-13 also refer to the embodiment of FIGS. 1-11 of the sleeve coupler set 3110 and/or receiver coupler set 3210. It may be similar to that described above.

As mentioned above, in the embodiment of FIGS. 1-11, the vertical taperings of sleeve coupler set 3110 (FIG. 10) and receiver coupler set 3210 (FIG. 11) may include a substantially infinite vertical radius of curvature, This results in a substantially straight line. 12-13, the vertical taperings of sleeve coupler set 12110 (FIG. 12) and receiver coupler set 13210 (FIG. 13) include 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 inches (20.32 mm), but between about 0.4 inches (10.16 mm) and 2 inches (50. There may be embodiments that can range from 8 mm). The vertical radii of curvature of other similar portions of sleeve coupler set 12110 may also be within the same ranges as described for vertical taper ring 12186. Additionally, the vertical radius of curvature of receiver coupler set 13210 (FIG. 13) may be the same or similar complementarily to the vertical radius of curvature described for sleeve coupler set 12110 (FIG. 12).

In some examples, the arcuate surfaces of the sleeve coupler and/or receiver coupler may include portions of 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) includes a quadric surface complementary to the arcuate surface of sleeve coupler 12116. May be included. In such instances, the quadric surfaces of sleeve coupler 12116 and receiver coupler 13218 may include, for example, a portion of a paraboloid or a portion of a hyperboloid. There may be instances where the quadric surface comprises 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 examples may be similar to those of FIGS. 10-11 for sleeve coupler set 3110 and receiver coupler set 3200.

In the embodiments of FIGS. 10-11 and 12-13, the arcuate surfaces of the sleeve couplers 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/or 13210 (FIG. 13) may be configured to be free of any inflection points, eg, continuously curved. In the same or other embodiments, such arcuate surfaces may also be configured to be edgeless (except at their respective perimeters). For example, the total surface area of sleeve coupler 5116 (FIG. 10) is borderless with respect to any portion of its total surface area within its perimeter. In addition, the total surface area of receiver coupler 8218 (FIG. 11) is also borderless with respect to any portion of its total surface area within its perimeter. Similar edgeless characteristics are also common to sleeve coupler 12110 (FIG. 12) and receiver coupler 13218 (FIG. 13). The above mentioned properties allow the contact area to be maximized when the sleeve coupler is fixed to the receiver coupler, limiting the rotation of its shaft sleeve relative to its corresponding shaft receiver.

As seen in FIGS. 3-7 and 10, the sleeve coupler set 3110 projects from the upper portion of the sleeve outer wall 3130. Similarly, as seen in FIGS. 3-4, 8-9 and 11, receiver coupler set 3210 is recessed in the upper portion of receiver inner wall 3230. However, there may be other embodiments where sleeve coupler set 3110 and receiver coupler set 3210 may be located elsewhere. For example, the sleeve coupler set 3110 and receiver coupler set 3210 may be located on or toward the lower 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 receiver coupler set 3210 are reversed in shape so that the sleeve coupler set 3110 is recessed in the sleeve outer wall 3130 and the receiver coupler set 3210 projects from the receiver inner wall 3230. May be. The devices, methods and articles of manufacture described herein are not limited in this respect.

As seen in the cross-sectional view shown in FIG. 3, the golf coupling mechanism 1000 also includes a locking fastener 3400 configured to lock the shaft sleeve 1100 to the shaft receiver 3200. In this example, the fastening fastener 3400 has a bolt configured to mate with the sleeve lower end 3192 of the shaft sleeve 1100 via a passage in the lower portion of the shaft receiver 3200. The fastening fastener 3400 is configured to couple with the sleeve lower end 3192 by a threaded mechanism. As the thread mechanism is tightened, the locking fastener 3400 is configured to pull the shaft sleeve 1100 toward the lower end of the shaft receiver 3200, thereby causing the arcuate surface of the sleeve coupler set 3110 to move to the receiver coupler. Fix against the arcuate surface of set 3210.

In an example such as this embodiment, the total mass of the body of the golf club head 101, the shaft sleeve 1100, and the fastening fasteners 3400 may be referred to as the assembled club head mass, while the shaft sleeve 1100 and the fastening fasteners. The mass of the body of the golf club head 101 without the 3400 is sometimes referred to as the club head mass after disassembly.

In this embodiment, the fastening fastener 3400 has a retaining element 3450. Retaining element 3450 is coupled to locking fastener 3400 and limits or at least prevents complete removal from shaft receiver 3200 when locking fastener 3400 is separated from shaft sleeve 1100. Retaining element 3450 is disposed within shaft receiver 3200 and includes a washer coupled around the threads of locking fastener 3400. In this embodiment, for example, by pushing the locking fastener 3400 into the retaining element 3450, its positioning along the threads of the locking fastener 3400 is enabled, and, for example, of the locking fastener 3400. Retaining element 3450 may be configured to flexibly engage the threads of locking fastener 3400 such that it remains substantially in that position when positioned along the threads. Thus, the retention element 3450 can retain the end of the locking fastener 3400 within the shaft receiver 3200 after the shaft sleeve 1100 is removed from the shaft receiver 3200, and the locking fastener to the sleeve lower end 3192. The insertion of the end of 3400 may be possible. In some examples, the retention element 3450 may include a material that is more flexible than the material of the fastening fasteners 3400, such as nylon material or other plastic material.

In another example, the hole in which the fastening fastener 3400 enters the shaft receiver 3200 may include threads that correspond to the threads of the fastening fastener 3400, such threads thereby providing a retaining element. May function. In these other examples, the retaining element 3450 may be omitted.

When shaft sleeve 1110 is secured within shaft receiver 3200 by securing 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 done. For example, in the embodiment of FIGS. 10-11, when secured relative to each other, at least a majority of the entire surface of sleeve coupler 5116 and a majority of the entire surface of receiver coupler 8218 contact each other and shaft receiver 3200. Rotation of the shaft sleeve 1100 with respect to is limited. As another example, in the embodiments of FIGS. 11-12, when secured relative to each other, a majority of all surfaces of sleeve coupler 12116 and a majority of all surfaces of receiver coupler 13218 also contact each other. Then the rotation is restricted. In the same or other examples, between individual sleeve couplers of sleeve coupler set 3110 (FIG. 10) or 12110 (FIG. 12) and individual receiver couplers of receiver coupler set 3210 (FIG. 11) or 13210 (FIG. 13). The contact area defined by the boundaries of the individual receiver couplers may be from about 51% to about 95% of the total surface of the individual receiver couplers or individual sleeve couplers. In some embodiments, such contact areas may be even larger, such as substantially close to or equal to the total surface of individual receiver couplers and/or individual sleeve couplers. The arcuate surface of the sleeve coupler of the sleeve coupler set 3110 (FIG. 10) or 12110 (FIG. 12) is fixed with respect to the arcuate surface of the receiver coupler of the receiver coupler set 3200 (FIG. 11) or 13210 (FIG. 13). There may be an example in which the normal forces act on each other over the contact areas.

In this embodiment, when the fixing fastener 3400 is fixing the shaft sleeve 1100 in the shaft receiver 3200, the sleeve top portion 3170 remains outside the shaft receiver 3200, and the sleeve coupler set 3110 is fixed to the receiver coupler set 3210. Thus, the lower end portion 3171 of the sleeve top portion 3170 is separated from the upper end portion of the shaft receiver 3200. Manufacturing tolerances are relaxed by such a built-in space, and it is ensured that the sleeve coupler set 3110 can be appropriately fixed to the receiver coupler set 3210.

In the same or other examples, a portion of one or more sleeve couplers of sleeve coupler set 3110 may project beyond the upper end of shaft receiver 3200. There may be instances where one or more sleeve couplers of sleeve coupler set 3110 may extend beyond the lower ends of one or more receiver couplers of receiver coupler set 3210. In other examples, one or more receiver couplers of the receiver coupler set may extend beyond the lower ends of one or more sleeve couplers of sleeve coupler set 3110. While some of the features described above may be designed into the golf coupling mechanism 1000 to reduce required manufacturing tolerances, it still allows proper locking of the sleeve coupler set 3110 to the receiver coupler set 3210. Good.

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

15 shows a top cross-sectional view of golf coupling mechanism 1000 of configuration 1500, taken along 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 hole axis 6150 (FIG. 6) is non-coaxial with the sleeve axis 5150 of the shaft sleeve 1100, so the configuration 1500 of FIG. 15 has a shaft hole axis 6150 (FIG. 6) and a 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). You can

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

17 shows a top cross-sectional view of golf coupling mechanism 1000 of configuration 1700, taken 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 axis 6150 (FIG. 6) is non-coaxial with the sleeve axis 5150 of the shaft sleeve 1100, so the configuration 1700 of FIG. 17 has a shaft hole axis 6150 (FIG. 6) and a shaft receiver 3200 (FIG. 3). 4 and 8-9 and/or a fourth lie angle and a fourth loft angle between the shaft 102 (FIG. 1) and the golf club head 101 (FIG. 1).

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 alignment may be obtained with the configurations shown in FIGS. For example, in the present embodiment, as seen in FIG. 6, the shaft hole shaft 6150 and the sleeve shaft 5150 are arranged so that the shaft 102 (FIG. 1) tilts toward the sleeve coupler 3112 when inserted into the shaft sleeve 1100. The angle between directs the bottom of shaft hole 3120 toward sleeve coupler 3111.

Therefore, 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 to tilt the grip end of the shaft 102 toward the heel of the golf club head 101 (FIG. 1) from about 0.2 degrees to about 4 degrees. This reduces the lie angle of the golf club in configuration 1400. The neutral first loft angle in this example does not affect the tilt 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, which loft angle is 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 to incline the grip end of the shaft 102 toward the toe of the golf club head 101 (FIG. 1) by about 0.2 degrees to about 4 degrees. This increases the lie angle of the golf club in configuration 1500. The second loft angle, which is neutral in this example, does not affect the tilt of shaft 102 in 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 to tilt the grip end of the shaft 102 toward the rear of the golf club head 101 (FIG. 1) from about 0.2 degrees to about 4 degrees. This reduces the loft angle of the golf club in configuration 1600. The neutral third lie angle of this example does not affect the tilt 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 the lie angle may be configuration 1600. It may be similar to or equal to the third lie angle of FIG. As an example, the fourth loft angle may be set such that the grip end of the shaft 102 is inclined about 0.2 degrees to about 4 degrees toward the front portion or the striking surface of the golf club head 101 (FIG. 1). Yes, this increases the loft angle of the golf club in configuration 1700. The fourth lie angle, which is neutral in this example, does not affect the tilt of the shaft 102 in the configuration 1700.

In other embodiments, other lie and loft angle relationships are constructed by changing the angle and/or orientation of the shaft bore axis 6150 (FIG. 6) relative to the sleeve axis 5150 (FIG. 6) of the shaft sleeve 1100. May be. Further, as can be seen in FIGS. 14-17, the sleeve couplers 3111, 3112, 5116 and 7115 are symmetrical to each other and the receiver couplers 3213, 3214, 8217 and 8218 are also symmetrical to each other. In different embodiments, even if only opposing ones of the sleeve coupler and receiver coupler are symmetrical to each other, such that only two (rather than four) different lie and loft angles can be combined. Good.

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

As seen in FIG. 8, in this embodiment, the top wall thickness 9250 varies in thickness along the receiver top end 1032 such that the receiver top end 1032 has at least one hosel top wall thinned portion 8252 and And one hosel upper wall thick portion 8251. The hosel top wall thickened portion 8251 at the receiver top end 1032 can have a thickness of about 2.3 mm or less when measured radially with respect to the center point of the hosel diameter 1031. The hosel top wall thinned portion 8252 at the receiver top end 1032 can have a thickness of about 0.9 mm or less when measured radially with respect to the center of the hosel diameter 1031. In this 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, minimizing the hosel diameter 1031 reduces the aerodynamic drag of the hosel 1015, which can improve the aerodynamic characteristics of the golf club head 101. 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 inch and golf club head 1920 has a larger hosel diameter of about 0.62 inch. In some examples, golf club head 1910 may be similar to 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 stagnant drag wake region 1921 downstream of the hosel when compared to the smaller stagnant drag wake region 1911 of the club head 1910. Higher aerodynamic drag value. FIG. 20 shows a chart of drag as a function of open face angle for hosel diameter of golf club heads 1910 and 1920. In some examples, 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, in an open face orientation 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 less than about 0.1 pounds. In the same or other examples, the drag of the 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 masses and/or mass ratios of the golf coupler mechanisms of FIGS. 1-17 are 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 mass ratio of the golf coupler mechanism 1000 to the assembled club head 101 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 those shown in Table 3 below. It may have similar mass characteristics.

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

There may be examples where the above-described mass, size, and/or location characteristics may provide advantages and/or flexibility regarding the mass distribution and/or location of the center of gravity (CG) of the golf club head. For example, the shaft sleeve centroid 1150 (FIG. 1) of the shaft sleeve 1100 may be configured to be located at the 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 It may be configured to be positioned at a shaft sleeve CG vertical distance 1159 of less than about 50 mm above the outer sole lower end 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 may also, in some embodiments, be about 0.59 inches above the assembled club head center of gravity 1050 (FIG. 1) of the driver-type assembled golf club head 101. It may be configured to be placed at a shaft sleeve CG vertical distance 1059 (FIG. 1) of 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 assembled club head CG vertical distance 1058 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 may be a fairway. It may be configured to be positioned at a shaft sleeve CG vertical distance 1159 of less than about 35.6 mm above the outer sole lower end of the sole 1014 of the wood club head 101. In the same or other examples, shaft sleeve CG vertical distance 1159 may be less than about 1.35 inches above outer sole lower end 10141 of sole 1014 of fairway wood club head 101. The shaft sleeve center of gravity 1150 of the shaft sleeve 1100 also, in some embodiments, is less than about 19 mm above the assembled club head center of gravity 1050 (FIG. 1) of the fairway wood type assembled golf club head 101. It may be configured to be located at CG vertical distance 1059 (FIG. 1). In the same or other embodiments, the shaft sleeve CG vertical distance 1159 may be greater than the assembled club head CG vertical distance 1058 of the fairway wood club head 101 by at least about 16.5 mm.

In this example, as seen in FIG. 1, hosel 1015 has a hosel shaft 1016 extending along a longitudinal centerline of 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 horizontally tangent to the sole lower end portion 10141. In some embodiments, hosel lie angle 1018 may be, for example, about 58 degrees. 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.

The club head 101 also has a crown height vertical distance 1018 that extends perpendicular to the upper end of the crown 1017 and to the sole lower end 10141. For example, in some embodiments where club head 101 has a driver-type golf club head, crown height vertical distance 1018 may be at least about 59.7 mm relative to sole bottom 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, the receiver top end 1032 may be on top of the hosel 1015 and configured to remain below the top end 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 does not substantially define the cylindrical outer shape of the hosel 1015, but substantially at the receiver top end 1032 of the hosel 1015. It is also possible to shift to a circular outer peripheral portion. With such a feature, the position of the center of gravity of the shaft sleeve 1100 can be brought closer to the center of gravity of the golf club head 101 after assembly.

Returning to the drawings, FIG. 18 illustrates a flowchart of a method 18000 that may be used to provide, form, and/or manufacture a golf coupler mechanism according to this disclosure. In some examples, the golf coupler mechanism may be similar to golf coupler mechanism 1000 of FIGS. 1-11 and 14-16 or golf coupler mechanism of FIGS. 12-13.

The method 18000 comprises a block 18100 for providing a shaft sleeve coupled with an end of a golf club shaft and including a sleeve arcuate coupler set. In some examples, the shaft sleeve may be similar to shaft sleeve 1100 (FIGS. 1-7, 10, 10, 14-16) and/or shaft sleeve 12100 (FIG. 12). The golf club shaft may be similar to golf club shaft 102 (FIGS. 1, 5). In the same or other examples, the sleeve arcuate coupler set is also similar to the sleeve coupler set 3110 (FIGS. 3-7, FIG. 10, FIGS. 14-17) and/or the sleeve coupler set 12110 (FIG. 12). Good.

Block 18200 of method 18000 comprises providing a shaft receiver for a golf club head having a receiver arcuate coupler set configured to mate with a sleeve arcuate coupler set for the shaft sleeve. In some examples, the shaft receiver is also similar to shaft receiver 3200 (FIGS. 3-4, 8-9, 11, 14, 17) and/or shaft receiver 13200 (FIG. 13). Good. The receiver bow 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 locking fastener configured to lock the shaft sleeve to the shaft receiver. In some examples, the locking fastener may be similar to locking fastener 3400 (FIGS. 3-4). The locking fastener may be configured to pull the shaft sleeve toward the shaft receiver to lock the sleeve bow coupler set to the receiver bow coupler set.

In some examples, one or more of the different blocks of method 18000 may be combined in 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, if desired. 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 the horizontal radius of curvature of the arcuate surface of the sleeve coupler of the sleeve arcuate coupler set and a vertical taper ring of the arcuate surface of the sleeve coupler of the sleeve arcuate coupler set. And a sub-block for There may be examples where method 18000 may have additional or different blocks. By way of example, the method 18000 may have another block for providing a golf club head for a shaft receiver of block 18200 and/or another block for providing a shaft for a shaft sleeve of block 18100. Good. Additionally, there may be instances where method 18000 may include only some of the steps described above. For example, block 18300 may be optional in some implementations. Other variations of method 18000 may be implemented without departing from the scope of this disclosure.

Slot Cap Golf Coupling Mechanism Referring to the previous figures, 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 the end of a golf club shaft, such as the golf club shaft 21102. In various embodiments, golf club head 21101 may be similar to golf club head 101 (FIG. 1), golf coupling mechanism 211000 may be similar to golf coupling mechanism 1000 (FIG. 1), and/or Alternatively, golf club shaft 21102 may be similar or identical to 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 figures, FIG. 22 shows a side view of shaft sleeve 211100 separated from golf club head 21101 (FIG. 21), according to the embodiment of FIG. 23 shows a cross-sectional view of shaft sleeve 211100 taken along line XXIII-XXIII of FIG. 22, according to the embodiment of FIG.

Referring to FIG. 22, the shaft sleeve 211100 has 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 There may be a receiver coupler set configured to engage the sleeve coupler set 223110 of 211100 and limit rotation of the shaft sleeve 211100 relative to the shaft receiver 213200. In these or other embodiments, sleeve coupler set 213110 may be similar to sleeve coupler set 3110 (FIG. 3), sleeve body outer wall 223130 may be similar to sleeve outer wall 3130 (FIG. 3), and/or The receiver coupler set may be similar to receiver coupler set 3210 (FIG. 3). 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), as described in further detail below. It may be.

On the other hand, referring now to FIG. 23, the shaft sleeve 211100 is in (i) a shaft hole 233120 configured to receive the end of the golf club shaft 21102 (FIG. 21), and (ii) the sleeve body lower end 233192. It may have fastening fastener holes 23105, (iii) hole bottom surface 23111, and/or (iv) shaft sleeve upper end 231191. To secure shaft sleeve 211100 to shaft receiver 213200 (FIG. 21), locking fastener holes 23105 may be configured to receive locking fasteners (not shown). Further, 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 locking fastener hole 23105 is similar to a hole configured to receive locking fastener 3400 (FIG. 3). May or may be the same, the sleeve body lower end 233192 may be similar or identical to the sleeve lower end 3192 (FIG. 3), and the fastening fastener may be the fastening fastener 3400 (FIG. 3). Shaft sleeve upper end 231191 may be similar or identical to 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 includes a shaft sleeve height 23119, a shaft sleeve body height 23120, a shaft sleeve cap height 23121, and a shaft sleeve cap upper height. 23122. 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 body height 23120 may mean the distance from the sleeve body lower end 233192 to the upper end of the shaft sleeve body 22103, measured parallel to the shaft sleeve height 23119. Shaft sleeve cap height 23121 may refer to the distance from the bottom of shaft sleeve cap 22104 to the top end of shaft sleeve 231191, measured parallel to 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, shaft sleeve height 23119 may be greater than or equal to about 1.78 inches and less than or equal to about 1.82 inches. In particular examples, shaft sleeve height 23119 may be approximately 1.8 inches.

Further, the shaft sleeve body height 23120 may be greater than or equal to about 1.527 inches and less than or equal to about 1.567 inches. 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 about 0.47 inches or less. 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 top height 23122 may be greater than or equal to about 0.23 inches and less than or equal to about 0.27 inches. In a particular example, shaft sleeve body height 23122 may be about 0.25 inches.

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

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

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

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

Fixing the shaft sleeve 211100 (FIG. 21) to the shaft receiver 213200 (FIG. 21) with a fastening fastener can help offset high stresses in the fastener region 24107. Further, due to the high stresses that may be experienced in the coupler region 24109, the couplers of the sleeve coupler set 223110 may have solid lobes configured to impart additional thickness to the sleeve body wall of the shaft sleeve body 22103. ) May be included. Thus, the coupler can reinforce the sleeve body wall in the coupler region 24109 and offset these high stresses in the coupler region 24109. The couplers of the sleeve coupler set 223110 can be graded (eg, linearly or curvilinearly) such that the end of the coupler region 24109 furthest from the sleeve body lower end 233192 (eg, the coupler region 24109 becomes the cap interface region 24110). Has a maximum thickness at the connecting position) and a minimum thickness at the end of the coupler region 24109 closest to the sleeve body lower end 233192 (FIG. 23) (eg, the position at which 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 in sleeve coupler set 223110 (FIG. 22) can provide continuity (eg, a smooth transition in thickness) between intermediate region 24108 and cap interface region 24110. it can.

In some embodiments, the couplers in sleeve coupler set 223110 may be symmetrical in profile. 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 has a first portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103 that is longer than another portion (eg, the portion that faces or is 180 degrees opposite the first portion). Thus, the couplers in 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) or 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 in the sleeve coupler set 223110 (FIG. 22) have a coupler at the end of the coupler region 24109 that is furthest from the sleeve body lower end 233192 (eg, where coupler region 24109 connects with cap interface region 24110). It may be the longest part of the sleeve body outer wall 223130 of the shaft sleeve body 22103 that is closest to the sleeve axis of the shaft sleeve body 22103. The sleeve shaft may be similar or identical to sleeve shaft 5150 (FIG. 5). In other words, the couplers of the sleeve coupler set 223110 (FIG. 22) have a sleeve axis and are longest at the portion of the sleeve body outer wall 223130 of the shaft sleeve body 22103 that intersects a plane 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 manipulated to hit a golf ball, the stress experienced by the intermediate region 24108 is lower, so that the sleeve body wall of the shaft sleeve body is less than the coupler region 24109. It may be thinner in the intermediate region 24108 than some or all, and/or the intermediate region 24108 may have holes or recesses to reduce weight. For example, the sleeve body wall of shaft sleeve body 22103 in intermediate region 24108 may have a thickness (eg, an average thickness) of about 0.020 inches.

Returning now to FIG. 23, in some embodiments, shaft bore 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 across shaft hole 233120.

In various embodiments, the shaft sleeve body 22103 has an etching channel 23112 in the shaft hole 233120 to provide a more suitable surface area for epoxy bonding the golf club shaft 21102 (FIG. 21) to the shaft sleeve body 22103. it can. Etch channel 23112 may be a portion of intermediate region 24108 (FIG. 24), such as to coupler region 24109 (FIG. 24) and/or for example half of intermediate region 24108 (FIG. 24) closer to coupler region 24109 (FIG. 24). It may be arranged all over.

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 located in the cap interface area 24110 (FIG. 24). In many embodiments, the receiving groove 23113 may be located at the interface between the cap interface area 24110 (FIG. 24) and the coupler area 24109 (FIG. 24).

Referring now to the previous figures, FIG. 25 illustrates a side view of shaft sleeve cap 22104 separated from 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 extending from the cap wall 25115, such as, for example, an end of the cap wall 25115. Thus, the protrusion 25114 may have a width (eg, diameter) that is greater than the width (eg, diameter) of the rest of the cap wall 25115 and/or the shaft hole 233120.

On the other hand, the slit 25116 allows the cap wall 25115 (e.g., the protrusion 25114) to (when the shaft sleeve cap 22104 is coupled to the shaft sleeve body 22103 (FIG. 22) and when separated from the shaft sleeve body 22103). For example, it may be (temporarily) elastically (eg, axially) compressed 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 the shaft sleeve body 22103 (FIG. 22) and to separate it from the shaft sleeve body 22103 (FIG. 22). May be done. In these embodiments, the protrusion 25114 may be operable as a locking feature to lock or snap the shaft sleeve cap 22104 in place.

Shaft sleeve cap 22104 may also be operable to provide damping (eg, vibration and/or stress reduction) between golf club shaft 21102 (FIG. 21) and 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). Accordingly, the shaft sleeve cap 22104 can prevent damage to the golf club shaft 21102 (FIG. 21) and extend the overall life of the golf club head 21101 (FIG. 21).

Referring to the previous figures, 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 centering features 26118. In some embodiments, 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, 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) can lead to shaft orientation misalignment. Therefore, in order to prevent misalignment of the golf club shaft 21102 (FIG. 21), the centering function part 26118 may protrude from the inner surface of the cap hole 26116. The distance that the centering feature 26118 extends from the inner surface of the cap hole 26116 depends on the collective size within the cap hole 26116 in an effective width (eg, diameter) that is approximately less than or equal to the width of the golf club shaft 21102 (FIG. 21). May be at least sufficient to give The cap hole width 26117 is larger than the effective width of the cap hole 26116 obtained from the centering function part 26118. Further, the cap hole width 26117 may be similar 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 centering function part 26118 causes the golf club shaft 21102 (FIG. 21) to enter the cap hole 26116. And operable to be positioned approximately centrally about the sleeve axis described above.

Referring again to FIG. 22, the shaft sleeve body 22103 may include any suitable material. For example, in some embodiments, the shaft sleeve body 22103 may include a metal or metal alloy (eg, aluminum alloy). In these examples, the aluminum alloy may include about 70% or more aluminum and about 75% or less aluminum. In a more specific example, the aluminum alloy may include about 70%, 71%, 72%, 73%, 74% or 75% aluminum. Similarly, the shaft sleeve cap 22104 may include 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 mass of the sleeve described above with respect to sleeve 1100 (FIG. 1).

In these or other embodiments, the shaft sleeve mass may be about 4.3 grams or more. Further, the shaft sleeve body mass may be greater than or equal to about 3.3 grams and less than or equal to about 3.8 grams. Furthermore, the shaft sleeve cap mass may be greater than or equal to about 0.5 grams and less than or equal to about 1.0 grams. In various embodiments, the shaft sleeve mass may be about 0.5 grams less than the mass of sleeve 1100 (FIG. 1). Further, the shaft sleeve mass combined with the locking 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, golf club head 21101 may have a disassembled club head mass and an assembled club head mass. The disassembled club head mass may be similar to the disassembled club head mass described above for golf club head 101 (FIG. 1), and the assembled club head mass is the assembled club head mass described above for golf club head 101 (FIG. 1). It may be similar to 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 assembled club head mass can be greater than or equal to about 188 grams and less than or equal to about 213 grams. In these or other embodiments, the assembled club head mass may be about 199 grams or more.

Further, the ratio of shaft sleeve mass to disassembled club head mass may be no more than about 2.0%, 2.2% or 2.4%, and the ratio of shaft sleeve mass to assembled club head mass is about 1%. May be less than or equal to 0.95%, 2.16%, or 2.35%, and the ratio of the mass of the shaft sleeve to the mass of the fastening fastener to the mass of the club head after disassembly is about 3.4%, 3.6%, or May be less than or equal to 3.8%, and/or the ratio of shaft sleeve mass and fastening fastener mass to assembled club head mass may be less than or equal to about 3.3%, 3.5%, or 3.7%. May be.

On the other hand, the golf club head 21101 may have an assembled club head CG related to the assembled club head CG vertical distance, and the shaft sleeve 211100 may have a shaft sleeve CG related to the shaft sleeve CG vertical distance. You can 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. Vertical distance 1058 (FIG. 1) may be similar or identical, shaft sleeve CG may be similar or identical to shaft sleeve CG1032 (FIG. 1), and/or shaft sleeve CG vertical distance. May be similar or identical to the shaft sleeve CG vertical distance 1159 (FIG. 1). In many embodiments, the shaft sleeve CG vertical distance is greater than the shaft sleeve CG vertical distance 1159 (FIG. 1) by about 0.010 inches (about 0.254 millimeters) or more and about 0.050 inches (about 1.27 millimeters). The number may be reduced as follows. For example, the shaft sleeve CG vertical distance may be about 44.9 millimeters or more from the sole bottom end of the golf club head 21101 and about 46 millimeters or less from the sole bottom end of the golf club head 21101. In a particular example, 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, about 44.9 millimeters or more from the sole bottom end of the golf club head 21101. 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 mm or more. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 211000 is about 44.9 millimeters or less, about 45.0 millimeters or less, about 45.1 millimeters or less from the bottom of the sole of the golf club head 41101. About 45.2 mm or less, about 45.3 mm or less, about 45.4 mm or less, about 45.5 mm or less, about 45.6 mm or less, about 45.7 mm or less, about 45.8 mm 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 millimeters from the bottom end of the sole of the golf club head 41101. The sole bottom end may be similar or identical to the sole bottom end 10141 (FIG. 1).

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

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

For example, in FIG. 28, operation 27001 may include operation 28001 of 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 operation 28002 of 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 act 27002 of preparing (eg, manufacturing) a golf club head. The golf club head may be similar or identical to golf club head 21101 (FIG. 21). In some embodiments, operation 27001 may be performed before operation 27002 and vice versa. In other embodiments, task 27001 and task 27002 may be performed at about the same time.

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

The method 2700 may also include the act 27004 of inserting the golf club shaft into the shaft hole. The golf club shaft may be similar or identical to golf club shaft 21102 (FIG. 21), and the shaft hole may be similar or identical to shaft hole 233120 (FIG. 23).

On the other hand, the method 2700 may include the act 27005 of 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 at substantially the same time. In a further embodiment, operation 27003 may be performed before operation 27004 and/or operation 27005 and vice versa. In many embodiments, one or more of acts 27001-27003 may be performed before one or more of acts 27004-27005, or vice versa.

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

Solid Rib Cap Coupling Mechanism Referring to the previous drawings, FIG. 29 illustrates 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, golf club head 41101 may be similar to golf club head 101 (FIG. 1), golf coupling mechanism 411000 may be similar to golf coupling mechanism 1000 (FIG. 1), and/or Alternatively, golf club shaft 41102 may be similar or identical to 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 resemble the shaft sleeve 1100 (FIG. 1) and/or the shaft receiver 413200 may resemble the shaft receiver 3200 (FIG. 3).

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

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

On the other hand, referring now to FIG. 31, the shaft sleeve 411100 has (i) a shaft hole 433120 configured to receive the end of the golf club shaft 41102 (FIG. 29), and (ii) the sleeve body lower end 433192. A locking fastener hole 43105, (iii) hole bottom surface 43111, (iv) a cap hole 42110 configured to receive an end of the golf club shaft 41102 and couple to the shaft hole 433120, and/or (v) a shaft sleeve. It may have an upper end 431191. To secure shaft sleeve 411100 to shaft receiver 413200 (FIG. 29), locking fastener holes 43105 may be configured to receive locking fasteners (not shown). Further, the hole bottom surface 43111 may have a 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 locking fastener hole 43105 may be a hole configured to receive the locking fastener 3400 (FIG. 3). The sleeve body lower end 433192 may be similar or identical, and the sleeve lower end 3192 (FIG. 3) may be similar or identical, and the locking fastener may be the locking 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 includes a shaft sleeve height 43119, a shaft sleeve body height 43120, a shaft sleeve cap height 43121, and a shaft sleeve cap upper height. 43122, and 43. 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 the distance from the sleeve body lower end 433192 to the upper end of the shaft sleeve body 42103, measured parallel to the shaft sleeve height 43119. Shaft sleeve cap height 43121 may mean the distance from the bottom of shaft sleeve cap 42104 to shaft sleeve upper end 431191, measured parallel to 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, shaft sleeve height 43119 may be greater than or equal to about 1.78 inches and less than or equal to about 1.82 inches. In particular examples, 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 particular examples, shaft sleeve body height 43120 may be approximately 1.549 inches.

Furthermore, the shaft sleeve cap height 43121 may be greater than or equal to about 0.46 inches and less than or equal to about 0.50 inches. In particular examples, shaft sleeve cap height 43121 may be about 0.48 inches.

On the other hand, for example, the shaft sleeve cap top height 43122 may be greater than or equal to about 0.23 inches and less than or equal to about 0.27 inches. In a particular example, the shaft sleeve body height 43122 may be about 0.25 inches.

In some embodiments, locking fasteners (not shown) for insertion into locking fastener holes 23105 may include titanium coated steel. Further, the locking fastener may have a locking fastener mass. The fastening fastener mass may be greater than or equal to about 2.7 grams.

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

Fastener region 44107 may refer to a portion of shaft sleeve body 42103 located between sleeve body lower end 433192 and hole bottom surface 43111 (FIG. 31). On the other hand, the coupler region 44109 is located from the lowest point of the sleeve coupler set 423110 (for example, the point of the sleeve coupler set 423110 closest to the sleeve body lower end portion 433192 (FIG. 31)) to the highest point of the sleeve coupler set 423110 (for example, the sleeve). It may refer to a portion of the shaft sleeve body located from the body lower end 433192 to the furthest point of the sleeve coupler set 423110). On the other hand, the intermediate region 44108 may refer to 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 the portion of shaft sleeve body 42103 that is opposite coupler region 44109 with respect to intermediate region 44108. Still referring to FIG. 32, the cap interface region 44110 (FIG. 32) may further include a top ring 44115 (FIG. 32).

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

Fastening the shaft sleeve 411100 (FIG. 29) to the shaft receiver 413200 (FIG. 29) with fastening fasteners can help offset high stresses in the fastener region 44107. Further, due to the high stresses that may be experienced in coupler region 44109, the couplers in sleeve coupler set 423110 have solid lobes configured to impart additional thickness to the sleeve body wall of shaft sleeve body 42103. May be. Thus, the coupler can reinforce the sleeve body wall in the coupler region 44109 and offset these high stresses in the coupler region 44109. The couplers of the sleeve coupler set 423110 can be graded (eg, linearly or curvilinearly) and at the end of the coupler region 44109 furthest from the sleeve body lower end 433192 (eg, coupler region 44109 is cap interface region 44110). Position where the coupler body 44109 has a maximum thickness and is closest to the sleeve body lower end 433192 (FIG. 31) at the end of the coupler region 44109 (eg, 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, grading the couplers in sleeve coupler set 423110 (FIG. 30) can provide continuity (eg, a smooth transition in thickness) between intermediate region 44108 and cap interface region 44110. it can.

In some embodiments, the couplers in sleeve coupler set 423110 may be symmetrical in contour. 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 is such that the first portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 is longer than another portion (eg, the portion directly opposite or 180 degrees opposite the first portion). Thus, the couplers in sleeve coupler set 423110 may be asymmetric in profile. 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) or 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 couplers in sleeve coupler set 423110 (FIG. 30) connect the ends of coupler region 44109 (FIG. 32) farthest from sleeve body lower end 433192 (eg, coupler region 44109 connects with cap interface region 44110). Position), may be the longest in the portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 that is closest to the sleeve axis of the shaft sleeve body 42103. The sleeve shaft may be similar or identical to sleeve shaft 5150 (FIG. 5). In other words, the couplers of the sleeve coupler set 423110 (FIG. 30) have the longest length at the portion of the sleeve body outer wall 423130 of the shaft sleeve body 42103 that has a sleeve axis and intersects a plane that extends 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 hit the golf ball, the stress experienced by the intermediate region 44108 is lower, so that the sleeve body wall of the shaft sleeve body is less than the coupler region 44109. It may be thinner in the intermediate region 44108 than some or all, and/or the intermediate region 44108 may have holes or recesses to reduce the weight of the intermediate region 44108. For example, the sleeve body wall of shaft sleeve body 42103 in intermediate region 44108 may have a thickness (eg, 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, outer diameter). The outer diameter of the shaft sleeve body 42103 may be greater than or equal to about 0.405 inches and less than or equal to about 0.445 inches. In a particular example, the outer diameter of the shaft sleeve body may be 0.425 inches.

In some embodiments, the shaft bore 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 bottom hole 43150 may have a diameter of about 0.320 inches or more and about 0.360 inches or less. In a particular example, the bottom hole diameter may be 0.340 inches. The diameter of the intermediate shaft hole 433130 may be greater than or equal to about 0.326 inches and less than or equal to 0.366 inches. 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 greater than or equal to about 0.326 inches and less than or equal to 0.366 inches. In a particular example, the diameter of cap hole 42115 may be 0.346 inches.

In various embodiments, the shaft sleeve body 42103 has an etching channel 43112 in the shaft hole 433120 to provide a more suitable surface area for epoxy bonding the golf club shaft 41102 (FIG. 29) to the shaft sleeve body 42103. You can Etch channel 43112 may be a portion of intermediate region 44108 (FIG. 32), such as to coupler region 44109 (FIG. 32) and/or for example half of intermediate region 44108 (FIG. 32) closer to coupler region 44109 (FIG. 32). Alternatively, they may be arranged all over.

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 secure 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 located in the cap interface area 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).

33A shows an upright side view of shaft sleeve cap 42104 separated from shaft sleeve body 42103 (FIG. 30), in accordance with the embodiment of FIG. 33B shows an angled top view of shaft sleeve cap 42104 separated from shaft sleeve body 42103 (FIG. 30), according to the embodiment of FIG. 34 shows a cross-sectional view of shaft sleeve cap 42104 taken along line XLV-XLV of FIG. 33A, according to the embodiment of FIG. 29. 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. The upper cap region 45050 may have an upper ring 45045 on top of the upper cap region 45050 and a lower edge shelf 45055 on the lower end of the upper cap region 45050. The top cap region 45050 increases in diameter from top to bottom to the bottom edge shelf 45055. The lower cap region 45060 has a smaller outer diameter than the 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). Thus, the protrusion 45114 may have a width (eg, diameter) 45300 that is greater than the width 45200 of the rest 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 provided with a receiving groove 43113 (FIG. 34) to couple the shaft sleeve cap 41204 to the shaft sleeve body 42103 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 may operate as a locking feature or may be snapped in 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 as it is installed within the shaft sleeve body 42103 (FIG. 32). Still referring to FIG. 32, when the shaft sleeve cap 41204 is installed within the shaft sleeve body 42103, the lower end shelf 45055 of the shaft sleeve cap 42104 is positioned over 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). Shaft hole diameter 43130 is constant throughout both upper cap region 45050 and lower cap region 45060 (FIG. 34). The combination of the shaft sleeve cap 42104 (upper and lower regions) with the cap interface region 44110 and the coupler region 44109 of the shaft sleeve body 42103 prevent epoxy leaching during the assembly process.

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

Shaft sleeve cap 42104 provides stability as compared to shaft sleeve body 42103 without shaft sleeve cap 42104. (1) Overall design of the shaft sleeve cap 42104, (2) Ribs 45202 on the inner cap wall 45120 of the shaft sleeve cap 42104, (3) Projections 45115, (4) on the outer cap wall 45115 of the shaft sleeve cap 42104. ) The receiving groove 43113 of the shaft sleeve body 42103, and (5) the hole diameters that decrease 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, the shaft of the golf club. 41102 can be centrally located within both the top and bottom of shaft sleeve 411100, and 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 swing of the golf club head and impact with the golf ball.

These elements, alone or in combination, also provide damping (eg, vibration) and stress reduction between golf club shaft 41102 (FIG. 29) and shaft sleeve body 42103 (FIG. 29). For example, shaft sleeve cap 42104 may function as a “shaft pillow” by increasing the concentricity of golf club shaft 41102 (FIG. 30) within 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). Therefore, (1) the rib 45202 on the inner cap wall 45120 of the shaft sleeve cap 42104, (2) the protrusion 45115 on the outer cap wall 45115 of the shaft sleeve cap 42104, (3) the receiving groove 43113 of the shaft sleeve body 42103, and (4) The hole diameters decreasing 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, allow the shaft sleeve cap 42104 to prevent damage to the golf club shaft 41102 (FIG. 29). This can increase the overall life of the golf club head 41101 (FIG. 29).

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 include a metal or metal alloy (eg, aluminum alloy). In these examples, the aluminum alloy may include about 70% or more aluminum and about 75% or less aluminum. In a more specific example, the aluminum alloy may include about 70%, 71%, 72%, 73%, 74% or 75% aluminum.

Shaft sleeve cap 42104 may include any suitable material configured to allow cap wall 25115 (FIG. 25) to elastically compress as described above. For example, the shaft sleeve cap 22104 may include a polymeric plastic material. The polymeric plastic material may be a thermoplastic material or a soft polymeric plastic on the 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 mass of the sleeve described above with respect to 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 grams. It may be 0.5 grams or more, about 4.6 grams or more, about 4.7 grams or more, about 4.8 grams or more, about 4.9 grams or more, or about 5.0 grams or more. 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 about 3.8 grams or more, about 3.9 grams or more, about 4.0 grams or more, about 4.1 grams or more, about 4.2 grams or more, about 4.3 grams or more. Alternatively, it may be about 4.4 grams or more. The shaft sleeve cap mass may be greater than or equal to about 0.1 grams and less than or equal to about 0.7 grams. In various embodiments, the shaft sleeve mass may be about 0.4 grams less than the mass of sleeve 1100 (FIG. 1). Further, the shaft sleeve mass combined with the securing 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, golf club head 41101 may have a disassembled club head mass and an assembled club head mass. The post-disassembly club head mass may be similar to the post-disassembly club head mass described above for golf club head 101 (FIG. 1) and the post-assembly club head mass is the post-assembly club head mass described above for 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 assembled club head mass can be greater than or equal to about 188 grams and less than or equal to about 213 grams. In these or other embodiments, the assembled club head mass may be about 199 grams or more.

Further, the ratio of shaft sleeve mass to club head mass after disassembly may be no more than about 2.0%, 2.2%, or 2.4%. The ratio of the shaft sleeve mass to the assembled club head mass may be about 1.95%, 2.16% or 2.35% or less, and the shaft sleeve mass and the fastening fastener mass to the disassembled club head mass. May be less than or equal to about 3.4%, 3.6%, or 3.8%, and/or the ratio of shaft sleeve mass to fastening fastener mass to club head mass after assembly is about 3%. It may be 0.3%, 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. You can 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 Head CG vertical distance 1058 (FIG. 1) may be similar or identical, shaft sleeve CG may be similar or identical to shaft sleeve CG1032 (FIG. 1), and/or shaft sleeve CG. The vertical distance may also be similar or the same as 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 more than the shaft sleeve CG vertical distance of the shaft sleeve 211100 (FIG. 23), It may be less than or equal to 0.092 inches (about 2.34 millimeters). The shaft sleeve CG vertical distance of the shaft sleeve 411100 (FIG. 31) is about 0.042 inch (about 1.07 mm) or more and 0.062 inch (about 1.58) greater 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 about 43.5 millimeters or more from the sole bottom end of the golf club head 41101 and about 47.0 millimeters or less from the sole bottom end of the golf club head 41101. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is about 43.5 millimeters or more, about 43.6 millimeters or more, about 43.7 millimeters or more from the sole bottom of the golf club head 41101. About 43.8 mm or more, about 43.9 mm or more, about 44.0 mm or more, about 44.1 mm or more, about 44.2 mm or more, about 44.3 mm or more, about 44.4 mm or more, about 44.5 mm or more, about 44.6 mm or more, about 44.7 mm or more, about 44.8 mm or more, about 44.9 mm or more, about 45.0 mm or more, about 45.1 mm or more, about 45 .2 mm or more, 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 46.0 mm or more, about 46.1 mm or more, about 46.2 mm or more, about 46.3 mm or more, about 46.4 mm or more, about 46.5 mm or more, about 46.6. It may be millimeters or more, about 46.7 millimeters or more, about 46.8 millimeters or more, about 46.9 millimeters, or about 47.0 millimeters or more. In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is about 43.5 millimeters or less, about 43.6 millimeters or less, about 43.7 millimeters or less from the bottom end of the sole of the golf club head 41101. About 43.8 mm or less, about 43.9 mm or less, about 44.0 mm or less, about 44.1 mm or less, about 44.2 mm or less, about 44.3 mm or less, about 44.4 mm 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 0.2 mm or less, about 45.3 mm or less, about 45.4 mm or less, about 45.5 mm or less, about 45.6 mm or less, about 45.7 mm or less, about 45.8 mm or less, about 45.4 mm or less. 9 mm or less, about 46.0 mm or less, about 46.1 mm or less, about 46.2 mm or less, about 46.3 mm or less, about 46.4 mm or less, about 46.5 mm or less, about 46.6. It may be less than or equal to millimeters, less than or equal to about 46.7 millimeters, less than or equal to about 46.8 millimeters, less than or equal to about 46.9 millimeters, or less than or equal to about 47.0 millimeters. 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 bottom end may be similar or identical to the sole bottom end 10141 (FIG. 1).

In some embodiments, the shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is about 32.0 millimeters or more, about 32.1 millimeters or more, about 32.3 millimeters or more from the bottom end of the sole of the golf club head 41101. About 32.4 mm or more, about 32.5 mm or more, about 32.6 mm or more, about 32.7 mm or more, about 32.8 mm or more, about 32.9 mm or more, about 33.0 mm or more, about 33.1 mm or more, about 33.2 mm or more, about 33.3 mm or more, about 33.4 mm or more, about 33.5 mm or more, about 33.6 mm or more, about 33.7 mm or more, about 33 .8 mm or more, about 33.9 mm or more, about 34.0 mm or more, about 34.1 mm or more, about 34.2 mm or more, about 34.3 mm or more, about 34.4 mm, or about 34.4 mm. It may be 5 mm or more. The shaft sleeve CG vertical distance of the golf coupling mechanism 411000 is about 32.0 mm or less, about 32.1 mm or less, about 32.3 mm or less, about 32.4 mm or less from the bottom end of the sole of the golf club head 41101. About 32.5 mm or less, about 32.6 mm or less, about 32.7 mm or less, about 32.8 mm or less, about 32.9 mm or less, about 33.0 mm or less, about 33.1 mm or less, about 33.2 mm or less, about 33.3 mm or less, about 33.4 mm or less, about 33.5 mm or less, about 33.6 mm or less, about 33.7 mm or less, about 33.8 mm or less, about 33 1.9 millimeters or less, about 34.0 millimeters or less, about 34.1 millimeters or less, about 34.2 millimeters or less, about 34.3 millimeters or less, about 34.4 millimeters or less, or about 34.5 millimeters or less Good. The vertical distance of the shaft sleeve CG 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 figures, FIG. 36 shows a flowchart of a method 47000 according to one embodiment. In many embodiments, method 47000 may include a method of making a golf club head in one or more parts of a golf club head. The golf club head may be similar or identical to golf club head 41101 (FIG. 29).

Method 47000 may include operation 47001 of providing a shaft sleeve. The shaft sleeve may be similar or identical to 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 of preparing (eg, manufacturing) a shaft sleeve body. The shaft sleeve body may be similar or identical to shaft sleeve body 42103 (FIG. 37).

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

Referring again to FIG. 36, the method 47000 may include an act 47002 of 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 at substantially the same time.

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

The method 4700 may also include the act 47004 of inserting the golf club shaft into the shaft hole. The golf club shaft may be similar or identical to golf club shaft 41102 (FIG. 29), and the shaft hole may be similar or identical to shut hole 433120 (FIG. 31).

On the other hand, the method 47000 may include the act 47005 of inserting the shaft sleeve cap into the shaft hole. In some embodiments, operation 47004 may be performed before operation 47005 or vice versa. In other embodiments, operations 47004 and 47005 may be performed at substantially the same time. 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 47001-47003 may be performed before one or more of operations 47004-47005, or vice versa (FIG. 37).

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

Although the golf coupling mechanism and associated methods have been described herein with reference to particular embodiments, various modifications may be made without departing from the spirit or scope of the disclosure. As an example, the sleeve coupler set 3110 (FIGS. 3 to 7, FIG. 10, FIG. 14 to FIG. 17), the sleeve coupler set 12110 (FIG. 12), the sleeve coupler set 223110 (FIG. 22), and/or the 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 thereof. Receiver coupler set with more receiver couplers and correspondingly an increased number of possible lie and loft angle combinations.

Such modifications and other additional examples have been described above. Other permutations of different embodiments having one or more of the features of the various figures are likewise contemplated. Accordingly, the specification, claims and drawings herein are intended to be illustrative of the scope of the present disclosure and not limiting. The scope of the present application is to be limited only to the extent required by the appended claims.

The golf coupling mechanism and associated methods described herein may be practiced in various embodiments, and the above description of specific ones of these embodiments is for all possible embodiments. It does not necessarily mean a complete explanation. Rather, the detailed description of the drawings, and the drawings themselves, disclose at least one preferred embodiment, as well as alternative embodiments.

Additionally, benefits, other advantages, and solutions to problems with particular embodiments have been described. However, any benefit, advantage, solution of a problem and any one or more factors that may cause any benefit, advantage or solution to arise or become more prominent, Should not be construed as any necessary or essential features or elements of any or all of the claims unless specifically stated in such claims.

Golf rules may change often (eg, may new rules be adopted by Golf Standards Associations and/or governing bodies, such as the US Golf Association (USGA), the British Golf Association (R&A), etc.) , Or old rules may be eliminated or modified), so that the golf equipment associated with the devices, methods, and articles of manufacture described herein meet the rules of golf at any particular time, or It may not fit. Accordingly, golf equipment associated with the devices, methods, and articles of manufacture described herein may be advertised, sold, and/or sold as conforming or non-conforming golf equipment. The devices, methods and articles of manufacture described herein are not limited in this respect.

Although the above examples may be described in the context of driver-type golf clubs, the devices, methods and articles of manufacture described herein include fairway wood-type golf clubs, hybrid-type golf clubs, iron-type golf clubs. 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.

Furthermore, the embodiments and limitations disclosed herein are not claimed as such (1) in the claims, and (2) claimed under the doctrine of equivalents. No substantive equivalent of the explicit elements and/or limitations in the paragraph shall be made publicly available under the doctrine of dedication.

Claims (18)

A golf coupling mechanism for a golf club head and golf club shaft, comprising:
A shaft sleeve configured to be coupled to the end of the golf club shaft and the hosel,
The shaft sleeve is
A shaft hole configured to receive the end of the golf club shaft,
A shaft sleeve body having a sleeve outer wall;
A shaft sleeve cap configured to be coupled to the shaft sleeve,
A first coupler protruding from the outer wall of the sleeve;
A second coupler protruding from the outer wall of the sleeve;
A third coupler protruding from the outer wall of the sleeve;
A fourth coupler protruding from the outer wall of the sleeve,
The first coupler has a first arcuate surface that is curved over the first coupler,
The second coupler has a second arcuate surface that is curved over the second coupler,
The third coupler has a third arcuate surface that is curved over the third coupler,
The fourth coupler has a fourth arcuate surface that is curved over the fourth coupler,
The shaft sleeve is
A fifth coupler projecting from the outer wall of the sleeve and having a fifth arcuate surface that is curved over its entirety;
A sixth coupler having a sixth arcuate surface that protrudes from the outer wall of the sleeve and is curved over the entire outer wall.
Golf coupling mechanism. The shaft sleeve is
A seventh coupler having a seventh arcuate surface that projects from the outer wall of the sleeve and is curved over the entire sleeve;
The golf coupling mechanism according to claim 1, further comprising: an eighth coupler protruding from the outer wall of the sleeve and having an eighth arcuate surface that is curved over the entire outer wall. The golf coupling mechanism according to claim 2, wherein the first to eighth arcuate surfaces are configured to limit rotation of the shaft sleeve relative to the golf club head. 4. The golf coupling mechanism according to claim 2, wherein the first coupler to the eighth coupler have asymmetrical contours. The first to eighth couplers have a coupler length,
The golf coupling mechanism according to claim 2, wherein the coupler length is about 0.260 inches or more and about 0.38 inches or less. The first, second, third, fourth, fifth, sixth, seventh and eighth couplers project from an upper portion of the sleeve outer wall toward a sleeve upper end portion. The golf coupling mechanism according to any one of claims. 7. The golf coupling mechanism according to claim 2, wherein the shaft hole has a plurality of etching channels. The shaft sleeve cap has a protrusion,
The shaft sleeve cap has at least one slit and a cap wall,
The golf coupling mechanism according to claim 2, wherein the at least one slit is located at a part of the protrusion and the cap wall. The shaft sleeve cap is detachably coupled to the shaft sleeve body,
9. The golf coupling mechanism according to any one of claims 2-8, wherein the shaft sleeve cap comprises a soft polymer plastic, and the soft polymer plastic can be 55 or less on the Shore D durometer scale. A golf coupling mechanism for a golf club head and golf club shaft, comprising:
A shaft sleeve configured to be coupled to the end of the golf club shaft and the hosel,
A shaft receiver of the golf club head configured to receive the shaft sleeve,
The shaft sleeve is
A shaft hole configured to receive the end of the golf club shaft,
A shaft sleeve body having a sleeve outer wall;
A shaft sleeve cap configured to be coupled to the shaft sleeve,
A first coupler protruding from the outer wall of the sleeve;
A second coupler protruding from the outer wall of the sleeve;
A third coupler protruding from the outer wall of the sleeve;
A fourth coupler protruding from the outer wall of the sleeve,
The first coupler has a first arcuate surface that is curved over the first coupler,
The second coupler has a second arcuate surface that is curved over the second coupler,
The third coupler has a third arcuate surface that is curved over the third coupler,
The fourth coupler has a fourth arcuate surface that is curved over the fourth coupler,
The shaft receiver is
A fifth coupler recessed in the inner wall of the sleeve,
A sixth coupler recessed in the inner wall of the sleeve,
A seventh coupler recessed in the inner wall of the sleeve,
An eighth coupler recessed in the inner wall of the sleeve,
The fifth coupler has a fifth arcuate surface that is curved over the fifth coupler,
The sixth coupler has a sixth arcuate surface that is curved over the entire sixth coupler,
The seventh coupler has a seventh arcuate surface that is curved over the seventh coupler,
The eighth coupler has an eighth arcuate surface that is curved over the entire eighth coupler,
The shaft sleeve is
A ninth coupler having a ninth arcuate surface projecting from the sleeve outer wall and curving over the entire surface;
A tenth coupler having a tenth arcuate surface projecting from the outer wall of the sleeve and curving over the whole thereof;
The shaft receiver is
An eleventh coupler having an eleventh arcuate surface that is concavely provided on the inner wall of the sleeve and that is curved over the entire inner surface;
A twelfth coupler having a twelfth arcuate surface that is concavely provided in the inner wall of the sleeve and that is curved over the entire inner wall.
Golf coupling mechanism. The shaft sleeve is
A thirteenth coupler having a thirteenth arcuate surface projecting from the outer wall of the sleeve and curving over the whole thereof;
Further comprising a fourteenth coupler having a fourteenth arcuate surface protruding from the sleeve outer wall and curved over the entire outer wall.
The shaft receiver is
A fifteenth coupler having a fifteenth arcuate surface that is concavely provided on the inner wall of the sleeve and that is curved over the entire surface;
The golf coupling mechanism according to claim 10, further comprising: a sixteenth coupler provided in the inner wall of the sleeve and having a sixteenth arcuate surface that is curved over the entire inner wall. The first, second, third, fourth, ninth, tenth, thirteenth and fourteenth couplers form a coupler set on the shaft sleeve,
The golf coupling mechanism according to claim 11, wherein the fifth, sixth, seventh, eighth, eleventh, twelfth, fifteenth and sixteenth couplers form a receiver coupler set on the shaft receiver. .. 13. The golf cup of claim 12, wherein the receiver coupler set of the shaft receiver is configured to engage the coupler set of the shaft sleeve and limit rotation of the shaft sleeve relative to the golf club head. Ring mechanism. The golf coupling mechanism according to claim 12 or 13, wherein the coupler set projects from an upper portion of the outer wall of the sleeve toward an upper end of the sleeve. The golf coupling mechanism according to any one of claims 12 to 14, wherein the receiver coupler set is recessed in an upper portion of an inner wall of the receiver. The golf coupling mechanism according to any one of claims 11 to 15, wherein the shaft hole has a plurality of etching channels. The shaft sleeve cap has a protrusion,
The shaft sleeve cap has at least one slit and a cap wall,
The golf coupling mechanism according to claim 11, wherein the at least one slit is located at a part of the protrusion and the cap wall. The shaft sleeve cap is detachably coupled to the shaft sleeve body,
18. The golf coupling mechanism according to any one of claims 11-17, wherein the shaft sleeve cap comprises a soft polymer plastic, and the soft polymer plastic can be 55 or less on the Shore D durometer scale.

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