Patent Application
20140221119
Not Applicable
1. Field of the Invention
The present invention relates to a golf club head having an adjustable shaft and hosel assembly. More specifically, the present invention relates to a golf club shaft and hosel connection assembly that allows a user to adjust the loft, lie, and face angle of the golf club head, either dependently or independently without requiring the user to remove the shaft from the hosel completely.
2. Description of the Related Art
It is known that changing the angle of a golf club shaft with respect to the golf club head will change certain club specifications, including loft angle, lie angle, and face angle. Several types of adjustable golf clubs are currently available on the market. These models allow the user to adjust loft, lie and face angle by adjusting certain golf club components, which themselves rotate the shaft in a cone-shaped path about a reference axis.
Current adjustable golf club models include rotatable component features that are used for angle indexing and for transmitting torque forces between the club body and shaft, and vice-versa. These component features limit the number of shaft angle adjustments, however. The maximum angular range of these designs has been found to be approximately ±2.0° from the reference axis. None of the currently available adjustable golf clubs permit a 0° angle adjustment with respect to the reference axis.
The adjustable golf club models currently on the market have other drawbacks in addition to limited shaft angle adjustability. Because the shaft is fixed to the standard rotating features of these golf clubs, which operate on a fixed cone range of movement, the shaft graphics and grip reminder rotate out of orientation with the club head body when angles are adjusted. This can frustrate golfers who rely on grip reminders or asymmetric grips while using their clubs.
Furthermore, in many cases a user has to remove certain shaft components to make angle adjustments, thus increasing the difficulty of making adjustments as well as increasing the likelihood that the user will lose important pieces of the adjustable golf club head. For example, with current designs, shaft interchangeability is achieved by removing mechanical fastener(s) that attach the shaft component to the club head body. A different shafted component can then be added and the mechanical fastener(s) can be re-used to attach the shaft component to the club head body. Golfers run the risk of losing the mechanical fastener(s) when they make desired adjustments.
The present invention relates to wood golf club heads that have angular adjustable shaft and hosel assemblies.
One aspect of the present invention is an adjustable golf club head comprising a face, a sole, a crown, a shaft sleeve having a shaft sleeve axis and a shaft-receiving bore, the shaft-receiving bore having a bore axis that is coaxial with the shaft sleeve axis, a hosel having a hosel bore extending from the sole to the crown, at least part of the hosel bore having a diameter sized to receive at least a part of the shaft sleeve, and a first tubular adjustment piece having non-parallel upper and lower surfaces, wherein the first tubular adjustment piece fits around a section of the shaft sleeve when at least a part of the shaft sleeve is inserted within the hosel bore, wherein rotating the first tubular adjustment piece around the shaft sleeve changes the angle of the shaft sleeve with respect to the face, wherein the first tubular adjustment piece provides a plurality of angular adjustments, and wherein the shaft sleeve does not rotate around the bore axis more than 5 degrees for any of the plurality of angular adjustments. This adjustable golf club head may further comprise a flange within the hosel bore, wherein the flange comprises a convex lower surface and a fastener comprising a fastener head and a threaded body, wherein the fastener is inserted into the hosel bore through the sole, wherein the threaded body engages the shaft sleeve to connect the shaft sleeve to the head, and wherein the fastener head abuts the convex lower surface of the flange when the threaded body is fully engaged with the shaft sleeve.
In a further embodiment, the adjustable golf club head comprises a washer disposed between the fastener head and the convex lower surface of the flange, wherein the washer comprises a concave surface that mates with the convex lower surface of the flange. In an alternative embodiment, the fastener head comprises a concave surface that mates with the convex lower surface of the flange. In a further embodiment, a radius of the convex lower surface is equivalent to a distance between a rotation point of the shaft sleeve and a point at which the fastener head makes contact with the flange. In another embodiment, a radius of the convex lower surface is 0.1 to 3.0 inches. In yet another embodiment, the shaft sleeve further comprises a universal joint connection having a joint bore sized to securely receive the threaded body of the fastener, and the universal joint connection may protrude from a lower portion of the shaft sleeve and comprise at least two planar sides and at least two curved sides. In a further embodiment, the golf club head may comprise a fitting member sized to fit within the hosel bore proximate the crown, the fitting member comprising a fitting member bore sized to receive the universal joint connection. The fitting member may be able move within the hosel bore along a first axis, and the universal joint connection may be able move within the fitting member bore along a second axis. In a further embodiment, the first axis is perpendicular to the second axis. The shaft sleeve of these embodiments may have a 360 degree range of angular movement around a rotation point when the fitting member and the universal joint connection are fully assembled with the hosel
In another embodiment, the adjustable golf club head may further comprise a second tubular adjustment piece having non-parallel upper and lower surfaces, wherein the second tubular adjustment piece is disposed proximate the first tubular adjustment piece. In this embodiment, the first and second tubular adjustment pieces may each comprise one or more markings on an external surface, and wherein the one or more markings indicate angular adjustments provided by said adjustment pieces. The adjustable golf club head may be any type of club head, such as a wood-type golf club head, or more specifically a driver golf club head.
Another aspect of the present invention is an adjustable driver head comprising a face, a sole, a crown, a shaft sleeve comprising a shaft sleeve axis, a shaft-receiving bore having a bore axis that is coaxial with the shaft sleeve axis, and a universal joint connection protruding from a lower portion of the shaft sleeve, wherein the universal joint connection comprises at least two flat sides and at least two curved sides, and wherein the universal joint connection further comprises a threaded joint bore, a fitting member comprising a fitting member bore and an external surface, wherein each of the fitting member bore and the external surface have at least two flat sides and at least two curved sides, and wherein the fitting member bore is sized to receive the universal joint connection, a hosel comprising a hosel bore extending from the sole to the crown, wherein a region of the hosel bore proximate the crown comprises at least two flat sides and at least two curved sides and wherein the region of the hosel bore proximate the crown is sized to receive the fitting member, first and second tubular adjustment pieces, each comprising non-parallel upper and lower surfaces, wherein the first tubular adjustment piece fits around the shaft sleeve when the universal joint connection is assembled with the fitting member and the hosel bore, and a fastener comprising a head and a threaded body, wherein the threaded body engages the threaded joint bore, wherein rotating the first and second tubular adjustment piece around the shaft sleeve changes the angle of the shaft sleeve with respect to the face, and wherein the shaft sleeve does not rotate around the bore axis more than 5 degrees.
In a further embodiment, the driver head may further comprise a flange disposed within the hosel bore, wherein the fastener head abuts the convex lower surface of the flange when the threaded body is fully engaged with the threaded joint bore, and wherein the flange comprises a convex lower surface having a radius that is equivalent to a distance between a rotation point of the shaft sleeve and a point at which the fastener head makes contact with the flange. The radius of the lower convex surface may be between 0.1 and 3 inches.
Yet another aspect of the present invention is an adjustable driver head comprising a face, a sole, a crown, a shaft sleeve comprising a shaft sleeve axis and a shaft-receiving bore, the shaft-receiving bore having a bore axis that is coaxial with the shaft sleeve axis, a hosel having a hosel bore extending from the sole to the crown, the hosel bore sized to receive at least a part of the shaft sleeve, a first tubular adjustment piece disposed around the shaft sleeve and providing a plurality of angular adjustments for the shaft sleeve, a flange within the hosel bore, wherein the flange comprises a convex lower surface, and a fastener comprising a fastener head and a threaded body, wherein the fastener is inserted into the hosel bore through the sole, wherein the threaded body engages the shaft sleeve to connect the shaft sleeve to the head, wherein the fastener head abuts the convex lower surface of the flange when the threaded body is fully engaged with the shaft sleeve, and wherein the shaft sleeve does not rotate around the bore axis more than 5 degrees for any of the plurality of angular adjustments.
Another aspect of the present invention is an adjustable shaft and hosel assembly for a golf club head, the adjustable shaft and hosel assembly comprising a shaft sleeve comprising a joint portion, a hosel portion, and a fitting piece, wherein the adjustable shaft and hosel assembly can independently alter a loft angle, a lie angle, and a face angle of the golf club head. The assembly further comprises a fastener, the joint portion is a side key ball joint, and the hosel portion is integrally formed with the golf club head. The loft angle, lie angle, and face angle of the golf club head may be adjusted using an angle adjustment tool, and in this embodiment the shaft sleeve does not need to be removed from the hosel portion for a user to make angular adjustments.
The adjustable shaft and hosel assembly may further comprise a shaft having graphics and a grip reminder, wherein the shaft is at least partially disposed within the shaft sleeve, and wherein the graphics and the grip reminder do not rotate out of orientation with the golf club head when a user makes angular adjustments. In this embodiment, torque forces are transmitted between the golf club head and the shaft. The loft, lie, and face angles of the golf club head may each have an angular adjustment range of 0° to ≧2° from a reference axis.
Another aspect of the present invention is an adjustable shaft and hosel assembly for a golf club head, the adjustable shaft and hosel assembly comprising a shaft sleeve comprising an extension portion and a side key ball joint, a fitting piece sized to receive the side key ball joint, a hosel portion integrally formed with the golf club head and sized to receive the fitting piece, a first shim encircling the shaft sleeve and having an upper surface and a lower surface, a second shim encircling the hosel piece and having an upper surface and a lower surface, and a fastener, wherein the upper surface of the first shim is nonparallel with the lower surface of the first shim, wherein the upper surface of the second shim is non parallel with the lower surface of the second shim, and wherein a lie angle, a loft angle, and a face angle of the golf club head can be adjusted by rotating the first shim around the shaft sleeve and the second shim around the hosel portion. The first and second shims each have angle indicators on their exterior surfaces, and the shaft sleeve does not need to be removed from the hosel portion for a user to make angular adjustments.
A further embodiment of this aspect of the present invention may comprise a shaft having graphics and a grip reminder, wherein the shaft is at least partially disposed within the shaft sleeve, and wherein the graphics and the grip reminder do not rotate out of orientation with the golf club head when a user makes angular adjustments. The loft, lie, and face angles of the golf club head may each have an angular adjustment range of 0° to ≧2° from a reference axis.
Yet another aspect of the present invention is an adjustable shaft and hosel assembly for a golf club head, the adjustable shaft and hosel assembly comprising a shaft sleeve comprising an extension portion and a side key ball joint, a fitting piece sized to receive the side key ball joint, a hosel portion integrally formed with the golf club head and sized to receive the fitting piece, a first wheel having a first bore with a first diameter, a second wheel having a second bore with a second diameter that is smaller than the first diameter, and a fastener, wherein the fastener affixes the first and second wheels to the shaft sleeve, and wherein a lie angle, a loft angle, and a face angle of the golf club head can be adjusted by rotating the first and second wheels. The first and second wheels may each have angle indicators on their exterior surfaces. The first bore provides a pivot surface and the second wheel causes the fastener to move along the pivot surface when the second wheel is turned. The shaft sleeve does not need to be removed from the hosel portion for a user to make angular adjustments.
In a further embodiment of this aspect of the invention, the shaft and hosel assembly comprises a shaft having graphics and a grip reminder, wherein the shaft is at least partially disposed in the shaft sleeve, and wherein the graphics and the grip reminder do not rotate out of orientation with the golf club head when a user makes angular adjustments.
Yet another aspect of the present invention is a method of adjusting a loft, lie, or face angle of a golf club head, the method comprising providing a golf club head having a hosel portion with a hosel bore extending from a sole of the golf club head to a top most portion of the hosel portion, providing a fitting member sized to be received within the hosel bore and to move along a first axis within the hosel bore, providing a shaft sleeve with a universal joint connection sized to be received within the fitting member and to move along a second axis within the fitting member that is perpendicular to the first axis, the universal joint portion comprising a joint bore, providing a fastener to be received within the joint bore, rotating the shaft sleeve to have a desired angle with respect to the golf club head, and tightening the fastener so that the shaft sleeve retains the desired angle.
Another aspect of the present invention is an adjustable golf club head comprising a body comprising a face, a sole, and a crown, a shaft sleeve comprising a shaft-receiving bore and a joint connection, wherein the joint connection protrudes from a lower surface of the shaft sleeve and comprises two joint connection pins and a fastener bore, a hosel comprising a plurality of side notches and a hosel bore extending from the sole to the crown, a fitting member sized to fit within the hosel bore proximate the crown, wherein the fitting member comprises a fitting member bore, a plurality of fitting member notches, and two fitting member pins, and a fastener, wherein the universal joint connection fits within the fitting member bore such that the joint connection pins rest within the fitting member notches, wherein the fitting member fits within the hosel bore such that the fitting member pins rest within the side notches, and wherein the fitting member can move within the hosel bore along a first axis, wherein the universal joint connection can move within the fitting member bore along a second axis, wherein the first axis is perpendicular to the second axis, and wherein moving the shaft sleeve changes the angle of the shaft sleeve with respect to the face. The golf club head may further comprise a first tubular adjustment piece having non-parallel upper and lower surfaces, wherein the first tubular adjustment piece fits around a section of the shaft sleeve when at least a part of the shaft sleeve is inserted within the hosel bore, wherein rotating the first tubular adjustment piece around the shaft sleeve changes the angle of the shaft sleeve with respect to the face, wherein the first tubular adjustment piece provides a plurality of angular adjustments, and wherein the shaft sleeve does not rotate around the bore axis more than 5 degrees for any of the plurality of angular adjustments.
In one embodiment, the golf club head may further comprise a flange within the hosel bore, wherein the flange comprises a convex lower surface, wherein the fastener comprises a fastener head and a threaded body, wherein the fastener is inserted into the hosel bore through the sole, wherein the threaded body engages the fastener bore to connect the shaft sleeve to the head, and wherein the fastener head abuts the convex lower surface of the flange when the threaded body is fully engaged with the shaft sleeve. A radius of the convex lower surface may be equivalent to a distance between a rotation point of the shaft sleeve and a point at which the fastener head makes contact with the flange, and may be 0.1 to 3.0 inches. In another embodiment, the fastener head may comprise a concave upper surface that mates with the convex lower surface of the flange. In yet another embodiment, the golf club head may further comprise a washer disposed between the fastener head and the convex lower surface of the flange, wherein the washer comprises a concave surface that mates with the convex lower surface of the flange and a flat lower surface that mates with the fastener head.
In an alternative embodiment, the adjustable golf club head may further comprise a flange disposed within the hosel bore, the flange comprising a flat lower surface, a first washer comprising a flat upper surface and a convex lower surface, and a second washer comprising a concave upper surface and a flat lower surface, wherein the fastener comprises a fastener head and a threaded body, wherein the fastener is inserted into the hosel bore through the sole, wherein the threaded body passes through the first and second washers and engages the fastener bore to connect the shaft sleeve to the head, wherein the flat upper surface of the first washer abuts the flat lower surface of the flange, wherein the concave upper surface of the second washer abuts the convex lower surface of the second flange, and wherein the fastener head abuts the flat lower surface of second washer flange when the threaded body is fully engaged with the shaft sleeve.
In another embodiment, the golf club head may further comprise a second tubular adjustment piece having non-parallel upper and lower surfaces, wherein the second tubular adjustment piece is disposed proximate the first tubular adjustment piece. The first and second tubular adjustment pieces may each comprise one or more markings on an external surface, and the one or more markings may indicate angular adjustments provided by said adjustment pieces. The adjustable golf club head may be a wood-type golf club head, such as a driver golf club head.
Another aspect of the present invention is an adjustable driver head comprising a body comprising a face, a sole, a crown, and a hosel, wherein the hosel comprises a plurality of side notches and a hosel bore, a shaft sleeve comprising a shaft-receiving bore and a joint connection, wherein the joint connection comprises two joint connection pins, a fitting member sized to fit within the hosel bore, wherein the fitting member comprises a fitting member bore, a plurality of fitting member notches, and two fitting member pins, and a first tubular adjustment piece having non-parallel upper and lower surfaces so as to provide a plurality of angular adjustment positions, wherein the universal joint connection fits within the fitting member bore such that the joint connection pins rest within the fitting member notches, wherein the fitting member fits within the hosel bore such that the fitting member pins rest within the side notches, and wherein the first tubular adjustment piece fits around a section of the shaft sleeve when at least a part of the shaft sleeve is inserted within the hosel bore, and wherein rotating the first tubular adjustment piece around the shaft sleeve changes the angle of the shaft sleeve with respect to the face. The adjustable driver head may further comprise a second tubular adjustment piece disposed proximate the first adjustment piece, wherein the second tubular adjustment piece has non-parallel upper and lower surfaces.
In a further embodiment, the fitting member notches and the side member notches may be arcuate. The two joint connection pins may be integrally formed with the shaft sleeve, and the two fitting member pins may be integrally formed with the fitting member. In some embodiments, the face, sole, and hosel may all be composed of a metal material. In other embodiments, the face, sole, and hosel may be integrally cast from a titanium alloy, and the crown may be composed of a composite material.
Yet another aspect of the present invention is an adjustable driver head comprising a body comprising a face, a sole, a crown, and a hosel, wherein the hosel comprises a plurality of arcuate side notches and a hosel bore, a shaft sleeve comprising a shaft-receiving bore and a joint connection, wherein the joint connection comprises two joint connection pins, and a fitting member sized to fit within the hosel bore, wherein the fitting member comprises a fitting member bore, a plurality of arcuate fitting member notches, and two fitting member pins, wherein the universal joint connection fits within the fitting member bore such that the joint connection pins rest within the fitting member notches, wherein the fitting member fits within the hosel bore such that the fitting member pins rest within the side notches, wherein moving the shaft sleeve changes the angle of the shaft sleeve with respect to the face, wherein the face, sole, and hosel are integrally cast from a metal material, wherein the crown is composed of a composite material, and wherein the body has a volume no less than 420 cubic centimeters and no more than 480 cubic centimeters.
Having briefly described the present invention, the above and further objects, features and advantages thereof will be recognized by those skilled in the pertinent art from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Angular adjustability in a golf club head is achieved through universal movement of the golf club shaft with respect to the golf club head, which almost always requires the shaft to rotate around a reference axis. As shown in
In addition to having non-ideal adjustability features, many of the adjustable golf club heads currently available on the market are difficult to use because they require a user to make minute linear movements with respect to a pivot point to achieve the desired angular change. For example, a 1° change that is made using an adjustability feature located 1 inch from the pivot point requires the user to make a precise, 0.0174 inch linear movement. In contrast with the currently available technology, the present invention includes precise methods for setting and fixing the angular adjustments desired.
The present invention provides golfers with a structure that can be used to easily and quickly modify club specifications such as loft, lie and face angle of their golf club. This invention enables golfers to change these specifications at the practice range or golf course. The tools used to alter the club's specifications are few in number and can be carried in a pocket of the user's golf bag. Furthermore, the technical ability required to modify the club specifications with this invention is minimal and its approach is intuitive and easy to understand.
The present invention is also valuable because a golfer's swing often changes over time, which can require alterations to his clubs. A golfer may improve his game through lessons and may gain greater flexibility and strength through practice and exercise. As such, it is reasonable for a golfer to wish to change his club's face, lie, and/or loft angles to help improve his accuracy, distance, and feel as needed or desired. This applies to all types of golf clubs. In fact, though the Figures show the present invention in connection with a driver-type golf club head, the embodiments of the present invention disclosed herein may be used in connection with other wood-type golf club heads as well as with irons and putters.
A preferred embodiment of the present invention is shown in
In the preferred embodiment, the fitting member 70 fits within the hosel 30 of the adjustable hosel assembly 10. As shown in
The movement of the universal joint connection 25 and the fitting member 70 can be facilitated further through the inclusion of pins 21, 71 protruding from external surfaces of the universal joint connection 25 and fitting member 70. As shown in FIGS. 6A and 14-20B, in an alternative embodiment, the universal joint connection 25 and the fitting member 70 have the same features as the preferred embodiment, with opposing flat and curved sides. In this embodiment, however, the universal joint connection 25 comprises a pin 21 protruding from each of the two flat sides 25a. When the universal joint connection 25 is assembled with the fitting member 70, these pins 21 rest within arcuate notches 74 in the curved sides of the fitting member 70, which also has pins 71 protruding from the external surfaces of its two flat sides. The pins 71 of the fitting member 70 rest within arcuate notches 34 in the side of the hosel 30. It is not necessary, however, for the hosel mouth 32 to be keyed, i.e., have flat and curved sides, as the pins 71 maintain the position of the fitting member 70 within the hosel 30. Similarly, it is not necessary for the fitting member 70 or universal joint connection 25 to be keyed due to the presence of the pins 21. As such, in an alternative embodiment, the mating surfaces of these pieces 25, 32, 70 may be completely cylindrical.
In this embodiment, it is preferable for the pins 21, 71 to be located proximate an uppermost region or surface of the universal joint connection 25 and fitting member 70 so that these pieces 25, 70 can more securely nest within the fitting member 70 and the hosel mouth 32, respectively. The pins 21, 71 allow the shaft sleeve 20, and thus the shaft, to sink further into the hosel 30, and thus the golf club head 100. The presence of the shaft inside the golf club head 100 affects the center of gravity of the golf club head 100, so adjustments to the depth of the shaft within the hosel 30 allows for adjustments to the overall center of gravity of the head 100. Shaft sleeves 20 having different overall lengths, or having pins 21, 71 located at different vertical heights along the sleeves 20, can be used with this embodiment to adjust the length of the shaft contained within the hosel 30 to achieve different center of gravity characteristics. Fasteners 60 having different overall lengths can also be used to adjust center of gravity characteristics. Alternatively, spacers may be placed between the shaft sleeve 20 and the fastener 60 to adjust the height of the sleeve 20, the depth of the shaft within the hosel 30, and/or the overall weight of the hosel assembly 10.
As with the preferred embodiment, in the embodiment including pins 21, 71 shown in
When the universal joint connection 25, fitting member 70, and hosel 30 described above with respect to the embodiments shown in
As shown in
In the preferred embodiment shown in
The shims 40, 50, shaft sleeve 20, fitting member 70, and hosel 30 of the embodiments of the golf club head 100 described herein are held together by the fastener 60. The fastener 60, which in the preferred embodiment is a bolt or screw, is inserted through an opening 125 in the sole 120 of the golf club head 100 and engages the universal joint connection 25 of the shaft sleeve 20, which includes a hollow, threaded bore 22 sized to receive the fastener 60. In an alternative embodiment, the fastener 60 comprises one or more snap rings, which may or may not be permanently attached to the hosel assembly 10. In the preferred embodiment, the fastener 60 provides the preload force necessary to hold the other components of the embodiment together during use. The component sizes of these connections are what limit the maximum angular adjustment. Removal of the shaft is not necessary for angular adjustment in the preferred embodiment—instead, the fastener 60 needs only to be loosened from the shaft sleeve 20 so that the component parts can be rotated with respect to each other.
As shown in
The present invention is functional when the contact surface between the fastener 60 and flange 35 is flat, as shown in
This problem can be overcome by incorporating into the hosel 30 a flange 35 that has a convex lower surface 36, as shown in
As shown in
In order to prevent loss of the fastener 60 after it is loosened to adjust the angle of the shaft sleeve 20, the fastener 60 may be retained within the hosel 30 of the golf club head 100 by any number of mechanisms or features, including those disclosed in U.S. Pat. No. 8,002,644, the disclosure of which is hereby incorporated in its entirety herein. In the preferred embodiment, the fastener 60 is retained within the hosel 30 by means of an o-ring 160 attached to the threaded portion 64 of the fastener 60 after it is inserted into the hosel 30, such that the flange 35 is sandwiched between the head 62 of the fastener 60 or a washer 140 and the o-ring as shown in
A second embodiment of the present invention is disclosed in
The wheels 90, 95 each have bores 92, 97 through their centers to receive the fastener 60 and are connected to the shaft and hosel assembly 10 via the fastener 60, as shown in
The first wheel 90, which is closest to the golf club head, sweeps the shaft sleeve 20 the desired angle 360° around the reference axis 80. The second wheel 95 rotates the shaft sleeve 20 from 0° to the maximum degree with respect to the reference axis. Combinations of these rotations modify the loft, lie, and face angles by rotating the universal joint connection 25, and thus the shaft sleeve 20 and the shaft (not shown) around the reference axis 80.
A third embodiment of the present invention is shown in
The angle adjustment tool 200 preferably has tapered gauge thicknesses 210, 215, 220, 225, 230, 235, 240, 245 at multiple locations around its circumference. The tool 200 is used to set a desired gap angle between the shaft sleeve 20 and hosel 30. The combination of the gap angles of the tool 200 and the orientation of the tool 200 about a reference axis 80 modifies the loft, lie, and face angle of the golf club head. In order to make an adjustment, the fastener 60 is loosened so that a gap angle between the shaft sleeve 20 and the hosel 30 can be adjusted. Once the shaft sleeve 20 is adjusted to have the desired angle with respect to the hosel 30, the fastener is tightened so that the golf club head retains the chosen angle. The fastener head 62, or a washer 140 with which it interacts, and a flange 35 may further have the concave-convex structure discussed in detail herein.
The embodiments of the adjustable shaft and hosel assembly 10 described herein allow for universal angular adjustment, and also allow a user to remove the shaft sleeve from the hosel portion entirely so that a different shaft and/or shaft sleeve can be attached to the golf club head. Preferably, for each of the embodiments, the angular adjustment range is a minimum of 0° to ≧2° from the reference axis 80. The assembly 10 of the present invention allows for torque forces to be transmitted between the body and the shaft, and visa-versa. The universal joint connection 25 also prevents shaft graphics and grip reminders on a golf club shaft from rotating out of orientation from the club head.
The embodiments disclosed herein may be made of any number of materials, including those material compositions disclosed in U.S. Pat. Nos. 6,244,976, 6,332,847, 6,386,990, 6,406,378, 6,440,008, 6,471,604, 6,491,592, 6,527,650, 6,565,452, 6,575,845, 6,478,692, 6,582,323, 6,508,978, 6,592,466, 6,602,149, 6,607,452, 6,612,398, 6,663,504, 6,669,578, 6,739,982, 6,758,763, 6,860,824, 6,994,637, 7,025,692, 7,070,517, 7,112,148, 7,118,493, 7,121,957, 7,125,344, 7,128,661, 7,163,470, 7,226,366, 7,252,600, 7,258,631, 7,314,418, 7,320,646, 7,387,577, 7,396,296, 7,402,112, 7,407,448, 7,413,520, 7,431,667, 7,438,647, 7,455,598, 7,476,161, 7,491,134, 7,497,787, 7,549,935, 7,578,751, 7,717,807, 7,749,096, and 7,749,097, the disclosure of each of which is hereby incorporated in its entirety herein. Furthermore, the shims 40, 50, and fitting member 70 may be composed of lightweight materials, such as plastic, composite, aluminum, titanium alloy, and/or other such materials.
From the foregoing it is believed that those skilled in the pertinent art will recognize the meritorious advancement of this invention and will readily understand that while the present invention has been described in association with a preferred embodiment thereof, and other embodiments illustrated in the accompanying drawings, numerous changes, modifications and substitutions of equivalents may be made therein without departing from the spirit and scope of this invention which is intended to be unlimited by the foregoing except as may appear in the following appended claims. Therefore, the embodiments of the invention in which an exclusive property or privilege is claimed are defined in the following appended claims.
The present application is a division of U.S. patent application Ser. No. 13/367,045, filed on Feb. 6, 2012, and issued on Apr. 15, 2014, as U.S. Pat. No. 8,696,486, which is a continuation-in-part of U.S. patent application Ser. No. 13/311,319, filed on Dec. 5, 2011, and issued on Apr. 1, 2014, as U.S. Pat. No. 8,684,859, which claims priority to U.S. Provisional Application No. 61/451,523, filed on Mar. 10, 2011, and to U.S. Provisional Application No. 61/452,521, filed on Mar. 14, 2011, the disclosures of which are hereby incorporated by reference in their entireties herein.
| Number | Date | Country | |
|---|---|---|---|
| 61451523 | Mar 2011 | US | |
| 61452521 | Mar 2011 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13367045 | Feb 2012 | US |
| Child | 14243134 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13311319 | Dec 2011 | US |
| Child | 13367045 | US |
