US20120165110A1 - Apparatus For Connecting A Golf Club Shaft To A Golf Club Head And Golf Clubs Including The Same - Google Patents
Apparatus For Connecting A Golf Club Shaft To A Golf Club Head And Golf Clubs Including The Same Download PDFInfo
- Publication number
- US20120165110A1 US20120165110A1 US12/978,381 US97838110A US2012165110A1 US 20120165110 A1 US20120165110 A1 US 20120165110A1 US 97838110 A US97838110 A US 97838110A US 2012165110 A1 US2012165110 A1 US 2012165110A1
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- US
- United States
- Prior art keywords
- main portion
- adapter
- adjustment tube
- lumen
- rotation restrictor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/02—Joint structures between the head and the shaft
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/02—Joint structures between the head and the shaft
- A63B53/022—Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft
- A63B53/023—Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft adjustable angular orientation
Definitions
- the present inventions relate generally to golf clubs.
- FIG. 1A is a side view of a golf club in accordance with one embodiment of a present invention.
- FIG. 1B is a partial section view of the golf club illustrated in FIG. 1A .
- FIG. 2 is a side view of an adapter in accordance with one embodiment of a present invention.
- FIG. 3 is an end view of the adapter illustrated in FIG. 2 .
- FIG. 4 is a section view taken along line 4 - 4 in FIG. 2 .
- FIG. 5 is a side view of an angular adjustment tube in accordance with one embodiment of a present invention.
- FIG. 6 is an end view of the angular adjustment tube illustrated in FIG. 5 .
- FIG. 7 is another end view of the angular adjustment tube illustrated in FIG. 5 .
- FIG. 8 is a section view taken along line 8 - 8 in FIG. 5 .
- FIG. 9 is a side view of a tube lock in accordance with one embodiment of a present invention.
- FIG. 10 is an end view of the tube lock illustrated in FIG. 9 .
- FIG. 11 is a section view taken along line 11 - 11 in FIG. 9 .
- FIGS. 12A-12D are section and partial section views showing the assembly of a golf club in accordance with one embodiment of a present invention.
- FIG. 13 is a rear view of a portion of a golf club in accordance with one embodiment of a present invention.
- FIG. 14 is a top view of an adapter in accordance with one embodiment of a present invention showing the locations of various indicia around the perimeter of the adapter.
- FIG. 15 is a top view of an angular adjustment tube in accordance with one embodiment of a present invention showing the locations of various indicia around the perimeter of the angular adjustment tube.
- FIG. 16 is a partial section view of a portion of a golf club in accordance with one embodiment of a present invention.
- FIG. 17 is a side view of a tube lock in accordance with one embodiment of a present invention.
- FIG. 18 is an end view of the tube lock illustrated in FIG. 17 .
- FIG. 19 is a section view taken along line 19 - 19 in FIG. 17 .
- FIG. 20 is a section view of a portion of a golf club in accordance with one embodiment of a present invention.
- FIG. 21 is a section view of an angular adjustment tube in accordance with one embodiment of a present invention.
- the exemplary golf club 10 illustrated in FIGS. 1A and 1B includes a shaft 100 with a tip portion 102 and grip portion 104 , a club head 106 that has a cylindrical hosel 108 and is adjustably and releasably mounted on the tip portion of the shaft, and a grip 110 carried on the grip portion of the shaft.
- the exemplary golf club 10 is a “driver” and the club head 104 is a driver type club head.
- the present inventions are, however, equally applicable to any and all golf clubs including, but not limited to, all “woods,” “irons,” and “wedges.”
- the exemplary shaft 102 is a fiber reinforced resin composite shaft. Other suitable shafts include, but are not limited to, metal shafts.
- the club head 106 is adjustably and releasably mounted onto the shaft 100 by way of a mounting apparatus 112 that is capable of positioning the club head at a variety of face angles, loft angles, lie angles and combinations thereof.
- the exemplary mounting apparatus 112 includes an adapter 114 that is secured to the shaft tip portion 102 , an angular adjustment tube (or “adjustment tube”) 116 and a tube lock 118 . As discussed in greater detail below with reference to FIGS.
- the adapter 114 may be permanently secured to the shaft 100 and used to bias the shaft at a predetermined loft and/or lie angle
- the adjustment tube 116 may be used to fix the rotational orientation of the adapter and to bias the shaft at a loft and/lie angle that is combined with the adapter bias
- the tube lock 118 may be used to fix the rotational orientation of the adjustment tube relative to the club head 106 .
- a first structure is “adjustably” mounted (or secured) to a second structure if the first structure can be mounted in more than one orientation relative to the second structure
- a first structure is “releasably” mounted (or secured) to a second structure if the first structure can be decoupled from the second structure without excessive effort or destruction of either structure or the instrumentality that is securing the structures to one another.
- “permanently” mounted (or secured) structures may not be separated from one another without excessive effort, destruction of either structure and/or destruction of the instrumentality that is securing the two structures to one another.
- instrumentalities that “permanently” secure structures to one another include high strength adhesives, such as epoxy and cyanoacrylate adhesives, and welds.
- the exemplary adapter 114 includes a cylindrical main portion 120 with top and bottom (or “longitudinal”) ends 122 and 124 , a cylindrical lumen 126 within the main portion for the shaft 100 ( FIGS. 1A and 1B ), an adapter rotation restrictor 128 at the main portion bottom end, and a lip 130 at the main portion top end.
- the main portion 120 has a longitudinal axis A 120 , an outer surface 132 and an inner surface 134 that defines the cylindrical lumen 126 .
- the cylindrical lumen 126 which has a longitudinal axis A 126 , is angularly offset (or “biased”) relative to the main portion 120 by an angle ⁇ .
- longitudinal axis A 126 is not parallel to longitudinal axis A 120 .
- the shaft 100 is carried within the cylindrical lumen 126 when the golf club 10 is in the assembled state and will also be angularly offset from the main portion by angle ⁇ .
- angle ⁇ may range from about 0.25° to 5° in some implementations, depending on club type, and is 1° in the illustrated implementation.
- the lip 130 will rest on the adjustment tube lip 150 (discussed below) when the adapter 114 is inserted into the adjustment tube 116 ( FIG. 1B ).
- the exemplary adapter rotation restrictor 128 is configured to mate with a rotation restrictor on the adjustment tube 116 in the manner described below.
- the exemplary adapter 114 is also provided with an internal connector 136 (e.g. a threaded lumen) that may be connected to a bolt 170 (or other fastener) in the manner described below with reference to FIGS. 12C and 12D .
- an internal connector 136 e.g. a threaded lumen
- the internal connector 136 may be omitted.
- the exemplary adjustment tube 116 includes a cylindrical main portion 138 with top and bottom (or “longitudinal”) ends 140 and 142 , a cylindrical lumen 144 within the main portion for the adapter 114 ( FIGS. 1A and 1B ), a first tube rotation restrictor 146 associated with the lumen, a second tube rotation restrictor 148 at the main portion bottom end, and a lip 150 at the main portion top end.
- the main portion 138 has a longitudinal axis A 138 , an outer surface 152 with a taper 153 , and an inner surface 154 that defines the cylindrical lumen 144 .
- the cylindrical lumen 144 has a longitudinal axis A 144 and is angularly offset (or “biased”) relative to the main portion 138 by an angle ⁇ (as is the first tube rotation restrictor 146 ).
- longitudinal axis A 144 is not parallel to longitudinal axis A 138 .
- angle ⁇ may range from about 0.25° to 5° in some implementations, depending on club type, and is 1° in the illustrated implementation.
- the adapter 114 is carried within the cylindrical lumen 144 when the golf club 10 is in the assembled state and will be angularly offset from the adjustment tube main portion 138 by angle ⁇ , while the shaft 100 will be angularly offset from the adjustment tube main portion by the combination of angle ⁇ and angle ⁇ .
- the exemplary adapter lip 130 which is perpendicular to the adapter cylindrical main portion 120 , will rest on the adjustment tube lip 150 when the adapter 114 is inserted into the adjustment tube 116 ( FIG. 1B ). In order to insure a proper fit, the top surface 156 of the adjustment tube lip 150 slopes at angle ⁇ .
- the first tube rotation restrictor 146 is configured to mate with the adapter rotation restrictor 128
- the second tube rotation restrictor 148 is configured to mate with a corresponding rotation restrictor 162 on the tube lock 118 , in the manner described below.
- the exemplary adjustment tube 116 is also provided with apertures 158 a and 158 b through which a bolt 170 (or other fastener) may pass in the manner described below with reference to FIGS. 12C and 12D .
- the diameter of the aperture 158 b is larger than the diameter of the associated portion of the bolt 170 (or other fastener) in order to insure sufficient clearance during assembly.
- the apertures 158 a and 158 b may also be the same size in some embodiments. In embodiments that do not include such a fastener (e.g., the embodiment illustrated in FIG. 16 ), the apertures may be omitted.
- the exemplary tube lock 118 includes a cylindrical wall 160 and a lock rotation restrictor 162 associated with the wall.
- the lock rotation restrictor 162 is configured to mate with the second tube rotation restrictor 148 in the manner described below.
- An aperture 164 through which a bolt 170 (or other fastener) may pass in the manner described below with reference to FIGS. 12C and 12D , may be provided.
- the diameter of the aperture 164 is larger than the diameter of the associated portion of the bolt 170 (or other fastener) in order to insure sufficient clearance during assembly.
- the aperture may be omitted.
- the rotation restrictors 128 , 146 , 148 and 162 fix the rotational orientations of the adapter 114 , adjustment tube 116 and lock 118 relative to one another and, as a result, the rotational orientations of angle ⁇ and angle ⁇ relative to one another and to the golf club head.
- the golf club head 106 will, therefore, be biased relative to the shaft 100 by the combination of angle ⁇ and angle ⁇ .
- the rotation restrictors 128 , 146 , 148 and 162 are gear-like and include projections 166 and recesses 168 .
- the respective configurations of the projections 166 and recesses 168 are such that the projections of one rotation restrictor (e.g. rotation restrictor 148 ) fit into recesses of the associated rotation restrictor (e.g. rotation restrictor 162 ) and vice versa.
- the number of relative rotational orientations of the adapter 114 , adjustment tube 116 and tube lock 118 is dictated by the configurations of the rotation restrictors.
- the number of indentations and recesses may be increased or decreased in other implementations and, although the number of possible relative orientations of the adapter 114 and adjustment tube 116 is equal to the number of possible relative orientations of the adjustment tube 116 and tube lock 118 , the present inventions are not so limited.
- the rotation restrictors are not limited to the illustrated gear-like configuration.
- one or both of the rotation restrictors may be a geometric shape such as a square, triangle, or hexagon.
- the exemplary rotation restrictors also have male/female relationships. To that end, the rotation restrictors 128 and 148 are respectively inserted into the rotation restrictors 146 and 162 when the recesses and protrusions are aligned. This relationship may be reversed in other implementations. It should also be noted that the adjustment tube 116 has two rotation restrictors, one male and one female, although the adjustment tube may be provided with two male rotation restrictors or two female rotation restrictors in other implementations.
- the manner in which the exemplary mounting apparatus 112 may be used to adjustably and releasably mount the club head 106 to the shaft 100 at the desired loft and lie angles is described below with reference to FIGS. 12A-12D .
- the tube lock 118 is positioned within the club head hosel 108 and permanently secured thereto by, for example, an epoxy adhesive or welding. In other implementations, the tube lock 118 may simply be an integral portion of the club head hosel.
- the adjustment tube 116 is then inserted into the hosel 108 .
- the outer diameter of the cylindrical main portion 138 is essentially identical to the inner diameter of the hosel 108 and, accordingly, there is a tight fit therebetween.
- the club head 106 includes a taper 107 that is slightly greater than or equal to the adjustment tube taper 153 .
- the adjustment tube 116 may then be rotated about the longitudinal axis A 138 of the main portion 138 in order to position the cylindrical lumen 144 (which is biased at angle ⁇ ) at one of the eight possible orientations, relative to the tube lock 118 and club head 106 , where the projections 166 and recesses 168 of the rotation restrictors 148 and 162 are aligned.
- the adjustment tube 116 is then pushed toward the tube lock 118 until the rotation restrictor 148 is fully seated in the rotation restrictor 162 and the lip 150 abuts the top of the hozel as shown in FIG. 12B . Rotation of the adjustment tube 116 relative to the tube lock 118 is thereby prevented. However, as the assembly is not complete, the adjustment tube 116 may be pulled back, rotated, and pushed back into the tube lock 118 if desired.
- a resilient washer e.g. a rubber washer
- the washer prevents the bolt 170 (or other fastener) from easily falling out of the club head when loosened.
- the adapter 114 is inserted into the adjustment tube 116 .
- the shaft 100 will have been inserted into the adapter lumen 126 , and permanently secured thereto with an adhesive or other suitable instrumentality, prior to the adapter 114 being inserted into the adjustment tube 116 .
- the diameter of the adapter outer surface 132 is essentially identical to the diameter of the adjustment tube inner surface 154 and, accordingly, there is a tight fit therebetween.
- the adapter 114 (and shaft 100 ) may then be rotated about the longitudinal axis A 120 of the main portion 120 in order to position the cylindrical lumen 126 (which is biased at angle ⁇ ) and the shaft 100 at one of the eight possible orientations, relative to the adjustment tube 116 , where the projections 166 and recesses 168 of the rotation restrictors 128 and 146 are aligned.
- the adapter 114 is then pushed toward the adjustment tube 116 until the rotation restrictor 128 is fully seated in the rotation restrictor 146 and the lip 130 abuts the top surface 156 of the adjustment tube lip 150 as shown in FIG. 12C . Rotation of the adapter 114 (and shaft 100 ) relative to the adjustment tube 116 is thereby prevented.
- the adapter 114 may be pulled back, rotated, and pushed back into the adjustment tube 116 if desired.
- the mounting apparatus 112 is releasably secured to the club head 106 by way of a bolt 170 ( FIGS. 12C and 12D ), which has a threaded portion 172 and a head 174 , and a club head recess 176 , which has an end wall 178 and an end wall aperture 180 .
- the bolt head 174 may include an indentation (not shown) for a tool such as a screwdriver, Allen wrench or the like.
- the diameter of the end wall aperture 180 is smaller than the diameter of the bolt head 174 .
- the bolt 170 is inserted through the end wall aperture 180 , tube lock aperture 164 and adjustment tube apertures 158 a and 158 b , and is secured to the internal connector 136 on the adapter 114 via rotation of the bolt.
- a lock washer may be positioned between the bolt head 174 and the recess end wall 178 . Tightening the bolt 170 results in the bolt head 174 abutting the end wall 180 , the adapter tube 114 being pulled tightly against the adjustment tube 116 , and the adjustment tube being pushed tightly against the tube lock 118 in the manner illustrated in FIG. 12D , thereby completing the assembly of the mounting apparatus 112 and golf club 10 . Should subsequent adjustment be desired, the user need only remove the bolt 170 to facilitate disassembly of the mounting apparatus 112 .
- a ferrule 182 may be positioned on the shaft 110 and abutting the adapter tube 114 for cosmetic purposes.
- the club head 106 may be provided with a marker 184 that serves as a reference point.
- the marker 184 may be located on the heel 186 , as shown, or any other suitable location.
- the adapter 114 and adjustment tube 116 may be provided with indicia corresponding to the effects of the various orientations of the adapter and adjustment tube (and the angles ⁇ and ⁇ thereof) relative to the reference point.
- the adapter 114 and adjustment tube 116 in the illustrated implementation each have eight possible rotational positions relative to the marker 184 .
- the indicia may be provided on the sides of the adapter lip 130 and adjustment tube lip 150 , as shown in FIG. 13 , or on the top of the lips.
- the overall configuration of the mounting apparatus 112 , the orientation of the tube lock 118 , and location of marker 184 are such that the indicia will be aligned with the marker at each rotational position of the adapter 114 and adjustment tube 116 .
- the indicia in the illustrated implementation includes letters “L,” “R,” “U,” “F” and dots therebetween.
- the respective positions of the exemplary indicia on the sides of the adapter lip 130 and adjustment tube lip 150 are shown in FIGS. 14 and 15 .
- alignment of the L with the marker 184 results in a more leftward shot (i.e. a more closed face and slightly higher loft)
- alignment of the R with the marker results in a more rightward shot (i.e. a more open face and slightly lower loft)
- alignment of the U with the marker results in a more upright lie
- alignment of the F with the marker results in a more flat lie
- alignment with the dots results in a combination of the biasing associated with the adjacent letters.
- aligning the Ls of the adapter 114 and adjustment tube 116 with the marker 184 would maximize the leftward bias without effecting the lie, while the orientations illustrated in FIG. 13 would result in slightly less bias to the left and a small increase in flat bias. It should also be noted that the biasing effect of the mounting apparatus 112 may be eliminated by aligning the L of the adapter 114 with the R adjustment tube 116 .
- Suitable materials for the mounting apparatus 112 include but are not limited to 6061-T6 aluminum, 7075-T7 aluminum, titanium, and lightweight alloys of similar strength.
- the present inventions are not limited to the bolt-based releasable anchoring of the mounting apparatus described above.
- the exemplary golf club 10 a illustrated in FIG. 16 is substantially similar to golf club 10 and similar elements are represented by similar reference numerals.
- the mounting apparatus 112 a is releasably secured to the club head 106 a with a removable cap 188 .
- threads 190 and 192 are provided on the outer surface of the club head 106 a and the inner surface of the cap 188 .
- the cap 188 also has an abutment surface 194 that engages the adapter lip 130 .
- the cap 188 drives the adapter 114 a into the adjustment tube 116 a , and drives the adjustment tube into the tube lock 118 a , as it is screwed onto the club head 106 a .
- the adapter 114 a , adjustment tube 116 a and tube lock 118 a may be provided without the internal connector 136 and apertures 158 a , 158 b and 164 (shown in FIG. 12C ), and the club head 106 a may be provided without the club head recess 176 and end wall aperture 180 .
- the exemplary cap 188 also has an aperture 196 for the shaft 100 .
- the diameter of the aperture 196 is larger that the diameter of the corresponding portion of the shaft 100 .
- the cap 188 will typically be positioned on the shaft 100 prior to permanently securing the adapter 114 a to the shaft.
- the exemplary tube lock 118 b is essentially identical to tube lock 118 and similar elements are represented by similar references numerals.
- the rotation restrictor 162 extends from top to bottom.
- the tube lock 118 b may be employed in, among others, the exemplary mounting apparatus 112 and 112 a .
- the tube lock 118 b may also be a separate structure that is attached to the club head (as shown) or an integral portion of the club head hosel.
- angle ⁇ and angle ⁇ are both non-zero, i.e. there is some possible biasing associated with both the adapter and the adjustment tube.
- the angle ⁇ may be zero and the angle ⁇ may be non-zero, or the angle ⁇ may be non-zero and the angle ⁇ may be zero.
- cylindrical surfaces described herein may slightly tapered, i.e. slightly frusto-conical, if necessary or desired.
- the adapter lumen 126 may be slightly tapered.
- the main portion outer surface 132 ( FIG. 2 ) and adjustment tube inner surface 154 ( FIG. 8 ) may be slightly tapered.
- the adjustment tube outer surface 152 ( FIG. 5 ) may be slightly tapered.
- the locations of the rotations restrictors may also vary from the illustrated locations.
- the adapter rotation restrictor 128 ( FIG. 4 ) may be located on the exterior of the main portion 120 near the lip 130 and the adjustment tube rotation restrictor 146 ( FIG. 8 ) may be located along the inner surface 154 inward of the lip 150 .
- the tube lock 118 c may be an integral portion of the exemplary club head 106 c and located at the top of the hosel 108 c .
- the adjustment tube 116 c is provided with a corresponding second tube rotation restrictor 148 c (in place of the rotation restrictor 148 in FIG. 8 ) as well as a first tube rotation restrictor 146 in the position illustrated in FIG. 8 .
- the angular adjustment tube 116 d includes a main portion 138 d that is only long enough to accommodate the first and second rotation restrictors 146 and 148 , and is significantly shorter than the length of the hosel.
- the first rotation restrictor 146 is biased to angle ⁇ as is described above.
- the present inventions include golf clubs having a shaft, a club head, and the apparatus described above and claimed below.
Abstract
Apparatus for connecting a golf club shaft to a golf club head, including an adjustment tube, and golf clubs including the same.
Description
- 1. Field of the Inventions
- The present inventions relate generally to golf clubs.
- 2. Description of the Related Art
- Golfers frequently customize their clubs to better suit their particular swing during the trial and error process commonly referred to as “fitting.” A golfer may try various shafts and club heads, as well as various face, loft and lie angles for each shaft and club head combination, during the fitting process. In order to accommodate such customization, various connector apparatus that releasably and adjustably mount club heads onto shafts have been proposed. The present inventor has determined that such apparatus is susceptible to improvement. For example, the present inventor has determined that conventional connector apparatus can create an unstable connection between the shaft and club head.
- Detailed description of embodiments of the inventions will be made with reference to the accompanying drawings.
-
FIG. 1A is a side view of a golf club in accordance with one embodiment of a present invention. -
FIG. 1B is a partial section view of the golf club illustrated inFIG. 1A . -
FIG. 2 is a side view of an adapter in accordance with one embodiment of a present invention. -
FIG. 3 is an end view of the adapter illustrated inFIG. 2 . -
FIG. 4 is a section view taken along line 4-4 inFIG. 2 . -
FIG. 5 is a side view of an angular adjustment tube in accordance with one embodiment of a present invention. -
FIG. 6 is an end view of the angular adjustment tube illustrated inFIG. 5 . -
FIG. 7 is another end view of the angular adjustment tube illustrated inFIG. 5 . -
FIG. 8 is a section view taken along line 8-8 inFIG. 5 . -
FIG. 9 is a side view of a tube lock in accordance with one embodiment of a present invention. -
FIG. 10 is an end view of the tube lock illustrated inFIG. 9 . -
FIG. 11 is a section view taken along line 11-11 inFIG. 9 . -
FIGS. 12A-12D are section and partial section views showing the assembly of a golf club in accordance with one embodiment of a present invention. -
FIG. 13 is a rear view of a portion of a golf club in accordance with one embodiment of a present invention. -
FIG. 14 is a top view of an adapter in accordance with one embodiment of a present invention showing the locations of various indicia around the perimeter of the adapter. -
FIG. 15 is a top view of an angular adjustment tube in accordance with one embodiment of a present invention showing the locations of various indicia around the perimeter of the angular adjustment tube. -
FIG. 16 is a partial section view of a portion of a golf club in accordance with one embodiment of a present invention. -
FIG. 17 is a side view of a tube lock in accordance with one embodiment of a present invention. -
FIG. 18 is an end view of the tube lock illustrated inFIG. 17 . -
FIG. 19 is a section view taken along line 19-19 inFIG. 17 . -
FIG. 20 is a section view of a portion of a golf club in accordance with one embodiment of a present invention. -
FIG. 21 is a section view of an angular adjustment tube in accordance with one embodiment of a present invention. - The following is a detailed description of the best presently known modes of carrying out the inventions. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the inventions.
- The
exemplary golf club 10 illustrated inFIGS. 1A and 1B includes ashaft 100 with atip portion 102 andgrip portion 104, aclub head 106 that has acylindrical hosel 108 and is adjustably and releasably mounted on the tip portion of the shaft, and agrip 110 carried on the grip portion of the shaft. Although the present inventions are not so limited, theexemplary golf club 10 is a “driver” and theclub head 104 is a driver type club head. The present inventions are, however, equally applicable to any and all golf clubs including, but not limited to, all “woods,” “irons,” and “wedges.” Theexemplary shaft 102 is a fiber reinforced resin composite shaft. Other suitable shafts include, but are not limited to, metal shafts. - The
club head 106 is adjustably and releasably mounted onto theshaft 100 by way of amounting apparatus 112 that is capable of positioning the club head at a variety of face angles, loft angles, lie angles and combinations thereof. Theexemplary mounting apparatus 112 includes anadapter 114 that is secured to theshaft tip portion 102, an angular adjustment tube (or “adjustment tube”) 116 and atube lock 118. As discussed in greater detail below with reference toFIGS. 2-12D , theadapter 114 may be permanently secured to theshaft 100 and used to bias the shaft at a predetermined loft and/or lie angle, theadjustment tube 116 may be used to fix the rotational orientation of the adapter and to bias the shaft at a loft and/lie angle that is combined with the adapter bias, and thetube lock 118 may be used to fix the rotational orientation of the adjustment tube relative to theclub head 106. - It should be noted that, as used herein, a first structure is “adjustably” mounted (or secured) to a second structure if the first structure can be mounted in more than one orientation relative to the second structure, and a first structure is “releasably” mounted (or secured) to a second structure if the first structure can be decoupled from the second structure without excessive effort or destruction of either structure or the instrumentality that is securing the structures to one another. By contrast, “permanently” mounted (or secured) structures may not be separated from one another without excessive effort, destruction of either structure and/or destruction of the instrumentality that is securing the two structures to one another. Examples of instrumentalities that “permanently” secure structures to one another include high strength adhesives, such as epoxy and cyanoacrylate adhesives, and welds.
- Turning first to
FIGS. 2-4 , theexemplary adapter 114 includes a cylindricalmain portion 120 with top and bottom (or “longitudinal”) ends 122 and 124, acylindrical lumen 126 within the main portion for the shaft 100 (FIGS. 1A and 1B ), anadapter rotation restrictor 128 at the main portion bottom end, and alip 130 at the main portion top end. Themain portion 120 has a longitudinal axis A120, anouter surface 132 and aninner surface 134 that defines thecylindrical lumen 126. Thecylindrical lumen 126, which has a longitudinal axis A126, is angularly offset (or “biased”) relative to themain portion 120 by an angle α. In other words, longitudinal axis A126 is not parallel to longitudinal axis A120. Theshaft 100 is carried within thecylindrical lumen 126 when thegolf club 10 is in the assembled state and will also be angularly offset from the main portion by angle α. Although not limited to any particular magnitude, angle α may range from about 0.25° to 5° in some implementations, depending on club type, and is 1° in the illustrated implementation. Thelip 130 will rest on the adjustment tube lip 150 (discussed below) when theadapter 114 is inserted into the adjustment tube 116 (FIG. 1B ). The exemplaryadapter rotation restrictor 128 is configured to mate with a rotation restrictor on theadjustment tube 116 in the manner described below. - The
exemplary adapter 114 is also provided with an internal connector 136 (e.g. a threaded lumen) that may be connected to a bolt 170 (or other fastener) in the manner described below with reference toFIGS. 12C and 12D . In other implementations, such as that described below with reference toFIG. 16 , theinternal connector 136 may be omitted. - Referring to
FIGS. 5-8 , theexemplary adjustment tube 116 includes a cylindricalmain portion 138 with top and bottom (or “longitudinal”) ends 140 and 142, acylindrical lumen 144 within the main portion for the adapter 114 (FIGS. 1A and 1B ), a firsttube rotation restrictor 146 associated with the lumen, a secondtube rotation restrictor 148 at the main portion bottom end, and alip 150 at the main portion top end. Themain portion 138 has a longitudinal axis A138, anouter surface 152 with ataper 153, and aninner surface 154 that defines thecylindrical lumen 144. Thecylindrical lumen 144 has a longitudinal axis A144 and is angularly offset (or “biased”) relative to themain portion 138 by an angle β (as is the first tube rotation restrictor 146). In other words, longitudinal axis A144 is not parallel to longitudinal axis A138. Although not limited to any particular magnitude, angle β may range from about 0.25° to 5° in some implementations, depending on club type, and is 1° in the illustrated implementation. Theadapter 114 is carried within thecylindrical lumen 144 when thegolf club 10 is in the assembled state and will be angularly offset from the adjustment tubemain portion 138 by angle β, while theshaft 100 will be angularly offset from the adjustment tube main portion by the combination of angle α and angle β. Theexemplary adapter lip 130, which is perpendicular to the adapter cylindricalmain portion 120, will rest on theadjustment tube lip 150 when theadapter 114 is inserted into the adjustment tube 116 (FIG. 1B ). In order to insure a proper fit, thetop surface 156 of theadjustment tube lip 150 slopes at angle β. The firsttube rotation restrictor 146 is configured to mate with theadapter rotation restrictor 128, and the secondtube rotation restrictor 148 is configured to mate with acorresponding rotation restrictor 162 on thetube lock 118, in the manner described below. - The
exemplary adjustment tube 116 is also provided withapertures FIGS. 12C and 12D . Giving the range of possible angular orientations of theadjustment tube 116, the diameter of theaperture 158 b is larger than the diameter of the associated portion of the bolt 170 (or other fastener) in order to insure sufficient clearance during assembly. Theapertures FIG. 16 ), the apertures may be omitted. - Referring to
FIGS. 9-11 , theexemplary tube lock 118 includes acylindrical wall 160 and alock rotation restrictor 162 associated with the wall. Thelock rotation restrictor 162 is configured to mate with the secondtube rotation restrictor 148 in the manner described below. Anaperture 164, through which a bolt 170 (or other fastener) may pass in the manner described below with reference toFIGS. 12C and 12D , may be provided. The diameter of theaperture 164 is larger than the diameter of the associated portion of the bolt 170 (or other fastener) in order to insure sufficient clearance during assembly. In embodiments that do not include such a fastener (e.g., the embodiment illustrated inFIG. 16 ), the aperture may be omitted. - The rotation restrictors 128, 146, 148 and 162 fix the rotational orientations of the
adapter 114,adjustment tube 116 and lock 118 relative to one another and, as a result, the rotational orientations of angle α and angle β relative to one another and to the golf club head. Thegolf club head 106 will, therefore, be biased relative to theshaft 100 by the combination of angle α and angle β. - A wide varied of rotation restrictors may be employed. In the illustrated implementation, the
rotation restrictors projections 166 and recesses 168. The respective configurations of theprojections 166 and recesses 168 are such that the projections of one rotation restrictor (e.g. rotation restrictor 148) fit into recesses of the associated rotation restrictor (e.g. rotation restrictor 162) and vice versa. The number of relative rotational orientations of theadapter 114,adjustment tube 116 andtube lock 118 is dictated by the configurations of the rotation restrictors. In the illustrated implementation, there are eightprojections 166 and eightrecesses 168 and, accordingly, there are eight relative orientations of theadapter 114 and theadjustment tube 116 as well as eight relative orientations of theadjustment tube 116 and thetube lock 118. Thus, there are sixty-four combinations of the rotational position of angle α and the rotational position of angle β. - The number of indentations and recesses may be increased or decreased in other implementations and, although the number of possible relative orientations of the
adapter 114 andadjustment tube 116 is equal to the number of possible relative orientations of theadjustment tube 116 andtube lock 118, the present inventions are not so limited. It should also be noted that the rotation restrictors are not limited to the illustrated gear-like configuration. By way of example, but not limitation, one or both of the rotation restrictors may be a geometric shape such as a square, triangle, or hexagon. - The exemplary rotation restrictors also have male/female relationships. To that end, the
rotation restrictors rotation restrictors adjustment tube 116 has two rotation restrictors, one male and one female, although the adjustment tube may be provided with two male rotation restrictors or two female rotation restrictors in other implementations. - The manner in which the exemplary mounting
apparatus 112 may be used to adjustably and releasably mount theclub head 106 to theshaft 100 at the desired loft and lie angles is described below with reference toFIGS. 12A-12D . - Referring first to
FIG. 12A , thetube lock 118 is positioned within theclub head hosel 108 and permanently secured thereto by, for example, an epoxy adhesive or welding. In other implementations, thetube lock 118 may simply be an integral portion of the club head hosel. - The
adjustment tube 116 is then inserted into thehosel 108. The outer diameter of the cylindricalmain portion 138 is essentially identical to the inner diameter of thehosel 108 and, accordingly, there is a tight fit therebetween. It should also be noted that theclub head 106 includes ataper 107 that is slightly greater than or equal to theadjustment tube taper 153. Theadjustment tube 116 may then be rotated about the longitudinal axis A138 of themain portion 138 in order to position the cylindrical lumen 144 (which is biased at angle β) at one of the eight possible orientations, relative to thetube lock 118 andclub head 106, where theprojections 166 and recesses 168 of therotation restrictors adjustment tube 116 is then pushed toward thetube lock 118 until therotation restrictor 148 is fully seated in therotation restrictor 162 and thelip 150 abuts the top of the hozel as shown inFIG. 12B . Rotation of theadjustment tube 116 relative to thetube lock 118 is thereby prevented. However, as the assembly is not complete, theadjustment tube 116 may be pulled back, rotated, and pushed back into thetube lock 118 if desired. - In some instances, a resilient washer (e.g. a rubber washer) or other washer may be positioned at the end of the adjustment
tube rotation restrictor 148 and the bottom inner surface of thetube lock 118. The washer prevents the bolt 170 (or other fastener) from easily falling out of the club head when loosened. - Next, as also shown in
FIG. 12B , theadapter 114 is inserted into theadjustment tube 116. Theshaft 100 will have been inserted into theadapter lumen 126, and permanently secured thereto with an adhesive or other suitable instrumentality, prior to theadapter 114 being inserted into theadjustment tube 116. The diameter of the adapterouter surface 132 is essentially identical to the diameter of the adjustment tubeinner surface 154 and, accordingly, there is a tight fit therebetween. The adapter 114 (and shaft 100) may then be rotated about the longitudinal axis A120 of themain portion 120 in order to position the cylindrical lumen 126 (which is biased at angle α) and theshaft 100 at one of the eight possible orientations, relative to theadjustment tube 116, where theprojections 166 and recesses 168 of therotation restrictors adapter 114 is then pushed toward theadjustment tube 116 until therotation restrictor 128 is fully seated in therotation restrictor 146 and thelip 130 abuts thetop surface 156 of theadjustment tube lip 150 as shown inFIG. 12C . Rotation of the adapter 114 (and shaft 100) relative to theadjustment tube 116 is thereby prevented. However, as the assembly is not complete, theadapter 114 may be pulled back, rotated, and pushed back into theadjustment tube 116 if desired. - The assembly of the mounting
apparatus 112 and, therefore, thegolf club 10 is completed when the mounting apparatus is releasably anchored or otherwise releasably secured to theclub head 106. In the exemplary embodiment illustrated inFIGS. 1-12D , the mountingapparatus 112 is releasably secured to theclub head 106 by way of a bolt 170 (FIGS. 12C and 12D ), which has a threadedportion 172 and ahead 174, and aclub head recess 176, which has anend wall 178 and anend wall aperture 180. Thebolt head 174 may include an indentation (not shown) for a tool such as a screwdriver, Allen wrench or the like. The diameter of theend wall aperture 180 is smaller than the diameter of thebolt head 174. Thebolt 170 is inserted through theend wall aperture 180,tube lock aperture 164 andadjustment tube apertures internal connector 136 on theadapter 114 via rotation of the bolt. In some instances, a lock washer may be positioned between thebolt head 174 and therecess end wall 178. Tightening thebolt 170 results in thebolt head 174 abutting theend wall 180, theadapter tube 114 being pulled tightly against theadjustment tube 116, and the adjustment tube being pushed tightly against thetube lock 118 in the manner illustrated inFIG. 12D , thereby completing the assembly of the mountingapparatus 112 andgolf club 10. Should subsequent adjustment be desired, the user need only remove thebolt 170 to facilitate disassembly of the mountingapparatus 112. - In some implementations, a
ferrule 182 may be positioned on theshaft 110 and abutting theadapter tube 114 for cosmetic purposes. - Another aspect of the assembly process is, as alluded to above, obtaining the desired rotational orientations of the
adapter 114 andadjustment tube 116 relative to theclub head 106. Referring toFIGS. 13-15 , theclub head 106 may be provided with amarker 184 that serves as a reference point. Themarker 184 may be located on theheel 186, as shown, or any other suitable location. Theadapter 114 andadjustment tube 116 may be provided with indicia corresponding to the effects of the various orientations of the adapter and adjustment tube (and the angles α and β thereof) relative to the reference point. Theadapter 114 andadjustment tube 116 in the illustrated implementation each have eight possible rotational positions relative to themarker 184. The indicia may be provided on the sides of theadapter lip 130 andadjustment tube lip 150, as shown inFIG. 13 , or on the top of the lips. The overall configuration of the mountingapparatus 112, the orientation of thetube lock 118, and location ofmarker 184 are such that the indicia will be aligned with the marker at each rotational position of theadapter 114 andadjustment tube 116. - The indicia in the illustrated implementation includes letters “L,” “R,” “U,” “F” and dots therebetween. The respective positions of the exemplary indicia on the sides of the
adapter lip 130 andadjustment tube lip 150 are shown inFIGS. 14 and 15 . For both theadapter 114 andadjustment tube 116, alignment of the L with themarker 184 results in a more leftward shot (i.e. a more closed face and slightly higher loft), alignment of the R with the marker results in a more rightward shot (i.e. a more open face and slightly lower loft), alignment of the U with the marker results in a more upright lie, alignment of the F with the marker results in a more flat lie, and alignment with the dots results in a combination of the biasing associated with the adjacent letters. For example, aligning the Ls of theadapter 114 andadjustment tube 116 with themarker 184 would maximize the leftward bias without effecting the lie, while the orientations illustrated inFIG. 13 would result in slightly less bias to the left and a small increase in flat bias. It should also be noted that the biasing effect of the mountingapparatus 112 may be eliminated by aligning the L of theadapter 114 with theR adjustment tube 116. - Suitable materials for the mounting
apparatus 112, e.g. theadapter 114,adjustment tube 116 and atube lock 118, include but are not limited to 6061-T6 aluminum, 7075-T7 aluminum, titanium, and lightweight alloys of similar strength. - Although the present inventions have been described in terms of the preferred embodiments above, numerous modifications and/or additions to the above-described preferred embodiments would be readily apparent to one skilled in the art.
- By way of example, but not limitation, the present inventions are not limited to the bolt-based releasable anchoring of the mounting apparatus described above. To that end, the
exemplary golf club 10 a illustrated inFIG. 16 is substantially similar togolf club 10 and similar elements are represented by similar reference numerals. Here, however, the mountingapparatus 112 a is releasably secured to theclub head 106 a with aremovable cap 188. There are a variety of ways to releasably secure thecap 188 to theclub head 106 a. In the illustrated embodiment,threads club head 106 a and the inner surface of thecap 188. Thecap 188 also has anabutment surface 194 that engages theadapter lip 130. Thecap 188 drives theadapter 114 a into theadjustment tube 116 a, and drives the adjustment tube into thetube lock 118 a, as it is screwed onto theclub head 106 a. If desired, theadapter 114 a,adjustment tube 116 a andtube lock 118 a may be provided without theinternal connector 136 andapertures FIG. 12C ), and theclub head 106 a may be provided without theclub head recess 176 and endwall aperture 180. Theexemplary cap 188 also has anaperture 196 for theshaft 100. Given the wide variety of possible angular orientations of theshaft 100, the diameter of theaperture 196 is larger that the diameter of the corresponding portion of theshaft 100. Also, thecap 188 will typically be positioned on theshaft 100 prior to permanently securing theadapter 114 a to the shaft. - Turning to
FIGS. 17-19 , theexemplary tube lock 118 b is essentially identical totube lock 118 and similar elements are represented by similar references numerals. Here, however, therotation restrictor 162 extends from top to bottom. Thetube lock 118 b may be employed in, among others, the exemplary mountingapparatus tube lock 118 b may also be a separate structure that is attached to the club head (as shown) or an integral portion of the club head hosel. - In the exemplary embodiments described above, angle α and angle β are both non-zero, i.e. there is some possible biasing associated with both the adapter and the adjustment tube. In other implementations, the angle α may be zero and the angle β may be non-zero, or the angle α may be non-zero and the angle β may be zero.
- It should also be noted that many of the cylindrical surfaces described herein may slightly tapered, i.e. slightly frusto-conical, if necessary or desired. For example, should the tip portion of the associated golf club shaft be tapered, the adapter lumen 126 (
FIG. 4 ) may be slightly tapered. The main portion outer surface 132 (FIG. 2 ) and adjustment tube inner surface 154 (FIG. 8 ) may be slightly tapered. Should the associated golf club hosel be tapered, the adjustment tube outer surface 152 (FIG. 5 ) may be slightly tapered. - The locations of the rotations restrictors may also vary from the illustrated locations. For example, the adapter rotation restrictor 128 (
FIG. 4 ) may be located on the exterior of themain portion 120 near thelip 130 and the adjustment tube rotation restrictor 146 (FIG. 8 ) may be located along theinner surface 154 inward of thelip 150. - Turning to
FIG. 20 , thetube lock 118 c, with arotation restrictor 162 c, may be an integral portion of theexemplary club head 106 c and located at the top of thehosel 108 c. Theadjustment tube 116 c is provided with a corresponding secondtube rotation restrictor 148 c (in place of therotation restrictor 148 inFIG. 8 ) as well as a firsttube rotation restrictor 146 in the position illustrated inFIG. 8 . - Various portions of the exemplary angular adjustment tube 116 (
FIGS. 5-8 ) may be omitted. As illustrated for example inFIG. 21 , theangular adjustment tube 116 d includes amain portion 138 d that is only long enough to accommodate the first andsecond rotation restrictors first rotation restrictor 146 is biased to angle β as is described above. - It is intended that the scope of the present inventions extend to all such modifications and/or additions. Moreover, the present inventions include golf clubs having a shaft, a club head, and the apparatus described above and claimed below.
Claims (41)
1. An apparatus for use with a golf club shaft adapter having an adapter rotation restrictor and a golf club head with a hosel having a hosel rotation restrictor, the apparatus comprising:
a main portion defining first and second longitudinal ends and a main portion longitudinal axis;
a lumen, within the main portion and adapted to receive the golf club shaft adapter, defining an opening associated with the first longitudinal end of the main portion and a lumen longitudinal axis that is not parallel to the main portion longitudinal axis;
a first main portion rotation restrictor associated with the cylindrical lumen and configured to engage the adapter rotation restrictor; and
a second main portion rotation restrictor associated with an exterior of the main portion.
2. An apparatus as claimed in claim 1 , wherein the main portion has a cylindrical outer surface.
3. An apparatus as claimed in claim 1 , wherein the lumen comprises a cylindrical lumen.
4. An apparatus as claimed in claim 1 , wherein the lumen longitudinal axis and the main portion longitudinal axis are angularly offset by an angle of about 0.25 degrees to 5 degrees.
5. An apparatus as claimed in claim 1 , wherein
the lumen defines a first longitudinal end associated with the opening and a second longitudinal end; and
the first main portion rotation restrictor is associated with the second longitudinal end of the lumen.
6. An apparatus as claimed in claim 5 , wherein the second main portion rotation restrictor is associated with the second longitudinal end of the main portion.
7. An apparatus as claimed in claim 1 , wherein at least one of the first and second main portion rotation restrictors includes a plurality of projections and a plurality of recesses.
8. An apparatus as claimed in claim 1 , wherein one of the first and second main portion rotation restrictors is a male rotation restrictor and the other of the first and second main portion rotation restrictors is a female rotation restrictor.
9. An apparatus as claimed in claim 1 , wherein the main portion defines an outer surface and at least part of the outer surface is tapered.
10. An apparatus as claimed in claim 1 , further comprising
an aperture extending from the second longitudinal end of the main portion to the lumen.
11. An apparatus for use with a golf club shaft and a golf club head with a hosel, the apparatus comprising:
a tube lock including a tube lock rotation restrictor;
an adapter including an adapter main portion defining an adapter main portion longitudinal axis, an adapter lumen configured to receive the golf club shaft and defining an adapter lumen longitudinal axis, and an adapter rotation restrictor; and
an adjustment tube including an adjustment tube main portion defining an adjustment tube main portion longitudinal axis, an adjustment tube lumen configured to receive the adapter and defining an adjustment tube lumen longitudinal axis, a first adjustment tube rotation restrictor configured to engage the adapter rotation restrictor, and a second adjustment tube rotation restrictor configured to engage the tube lock rotation restrictor;
wherein the adapter lumen longitudinal axis is not parallel to the adapter main portion longitudinal axis and/or the adjustment tube lumen longitudinal axis is not parallel to the an adjustment tube main portion longitudinal axis.
12. An apparatus as claimed in claim 11 , wherein the tube lock is configured to be inserted into the hosel and secured thereto.
13. An apparatus as claimed in claim 11 , wherein the tube lock rotation restrictor includes a plurality of projections and a plurality of recesses.
14. An apparatus as claimed in claim 11 , wherein the adapter main portion has a cylindrical outer surface.
15. An apparatus as claimed in claim 11 , wherein the adapter main portion defines first and second longitudinal ends and the adapter rotation restrictor is associated with the second longitudinal end.
16. An apparatus as claimed in claim 15 , wherein the adapter main portion includes a connector associated with the second longitudinal end.
17. An apparatus as claimed in claim 11 , wherein the adapter lumen longitudinal axis and the adapter main portion longitudinal axis are angularly offset by an angle of about 0.25 degrees to 5 degrees.
18. An apparatus as claimed in claim 11 , wherein the adapter rotation restrictor includes a plurality of projections and a plurality of recesses.
19. An apparatus as claimed in claim 11 , wherein the adjustment tube main portion has a cylindrical outer surface.
20. An apparatus as claimed in claim 11 , wherein the adjustment tube main portion has an outer surface and at least part of the outer surface is tapered.
21. An apparatus as claimed in claim 11 , wherein the adjustment tube lumen comprises a cylindrical lumen.
22. An apparatus as claimed in claim 11 , wherein the adjustment tube lumen longitudinal axis and the adjustment tube main portion longitudinal axis are angularly offset by an angle of about 0.25 degrees to 5 degrees.
23. An apparatus as claimed in claim 11 , wherein the first and second adjustment tube rotation restrictors are adjacent to one another.
24. An apparatus as claimed in claim 11 , wherein the first and second adjustment tube rotation restrictors are associated with opposite longitudinal portions of the adjustment tube main portion.
25. An apparatus as claimed in claim 11 , wherein at least one of the first and second adjustment tube rotation restrictors includes a plurality of projections and a plurality of recesses.
26. An apparatus as claimed in claim 11 , wherein one of the first and second adjustment tube rotation restrictors is a male rotation restrictor and the other of the first and second adjustment tube rotation restrictors is a female rotation restrictor.
27. An apparatus as claimed in claim 11 , further comprising:
an aperture extending from a longitudinal end of the adjustment tube to the adjustment tube lumen.
28. An apparatus as claimed in claim 11 , further comprising:
means for releasably securing the adapter and adjustment tube to the golf club head.
29. An apparatus as claimed in claim 11 , wherein
the first adjustment tube rotation restrictor and the adapter rotation restrictor are respectively configured such that they can be engaged with one another at a plurality of different rotational orientations; and
the second adjustment tube rotation restrictor and the tube lock rotation restrictor are respectively configured such that they can be engaged with one another at a plurality of different rotational orientations.
30. An apparatus as claimed in claim 11 , wherein
the hosel defines a diameter;
the adjustment tube main portion defines an outer diameter, that is substantially equal to the hosel diameter, and an inner diameter; and
the adapter main portion defines an outer diameter that is substantially equal to the inner diameter of the adjustment tube main portion.
31. An apparatus as claimed in claim 11 , wherein the adapter lumen longitudinal axis is not parallel to the adapter main portion longitudinal axis and the adjustment tube lumen longitudinal axis is not parallel to the an adjustment tube main portion longitudinal axis.
32. An apparatus as claimed in claim 1 , wherein
the second main portion rotation restrictor is associated with the first longitudinal end of the main portion.
33. An apparatus as claimed in claim 32 , wherein
the lumen defines a first longitudinal end associated with the opening and a second longitudinal end; and
the first main portion rotation restrictor is associated with the second longitudinal end of the lumen.
34. An apparatus as claimed in claim 32 , wherein
the second main portion rotation restrictor includes a plurality of projections.
35. An apparatus for use with a golf club shaft adapter having an adapter rotation restrictor, the apparatus comprising:
a golf club head including a hosel with a top portion and a hosel rotation restrictor at the top portion of the hosel; and
angular adjustment tube including
a main portion defining first and second longitudinal ends and a main portion longitudinal axis,
a lumen, within the main portion and adapted to receive the golf club shaft adapter, defining an opening associated with the first longitudinal end of the main portion and a lumen longitudinal axis that is not parallel to the main portion longitudinal axis,
a first main portion rotation restrictor associated with the cylindrical lumen and configured to engage the adapter rotation restrictor, and
a second main portion rotation restrictor associated with the exterior of the first longitudinal end of the main portion.
36. An apparatus as claimed in claim 35 , wherein the hosel rotation restrictor is integral with the top portion of the hosel.
37. An apparatus as claimed in claim 35 , wherein the second main portion rotation restrictor includes a plurality of projections.
38. An apparatus as claimed in claim 37 , wherein the hosel rotation restrictor includes a plurality of recesses.
39. An apparatus as claimed in claim 37 , wherein the hosel rotation restrictor includes a plurality of projections that defines a plurality of spaces therebetween.
40. An apparatus as claimed in claim 35 , wherein one of the first and second main portion rotation restrictors is a male rotation restrictor and the other of the first and second main portion rotation restrictors is a female rotation restrictor.
41. An apparatus as claimed in claim 35 , wherein the lumen longitudinal axis and the main portion longitudinal axis are angularly offset by an angle of about 0.25 degrees to 5 degrees.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/978,381 US20120165110A1 (en) | 2010-12-23 | 2010-12-23 | Apparatus For Connecting A Golf Club Shaft To A Golf Club Head And Golf Clubs Including The Same |
US13/342,182 US20120165111A1 (en) | 2010-12-23 | 2012-01-02 | Apparatus for connecting a golf club shaft to a golf club head and golf clubs including the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/978,381 US20120165110A1 (en) | 2010-12-23 | 2010-12-23 | Apparatus For Connecting A Golf Club Shaft To A Golf Club Head And Golf Clubs Including The Same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/342,182 Continuation-In-Part US20120165111A1 (en) | 2010-12-23 | 2012-01-02 | Apparatus for connecting a golf club shaft to a golf club head and golf clubs including the same |
Publications (1)
Publication Number | Publication Date |
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US20120165110A1 true US20120165110A1 (en) | 2012-06-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/978,381 Abandoned US20120165110A1 (en) | 2010-12-23 | 2010-12-23 | Apparatus For Connecting A Golf Club Shaft To A Golf Club Head And Golf Clubs Including The Same |
Country Status (1)
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US (1) | US20120165110A1 (en) |
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