US20050215345A1 - Golf club - Google Patents
Golf club Download PDFInfo
- Publication number
- US20050215345A1 US20050215345A1 US11/087,888 US8788805A US2005215345A1 US 20050215345 A1 US20050215345 A1 US 20050215345A1 US 8788805 A US8788805 A US 8788805A US 2005215345 A1 US2005215345 A1 US 2005215345A1
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- United States
- Prior art keywords
- shaft
- head
- golf club
- hosel hole
- attachment member
- 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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Classifications
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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
-
- 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
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
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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
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
Definitions
- the present invention relates to a golf club that increases the distance of a struck ball and stabilizes the direction of a struck ball.
- the striking force F at the moment of impact with such golf clubs is expressed as 1 ⁇ 2 ⁇ m ⁇ v 2 (where m is the mass of the head, and v is the head speed).
- the striking force F is proportional to the mass m of the clubhead and is also proportional to the square of the head speed v. To increase the flight distance, this striking force F must be increased.
- the present invention is to solve the above-described problems, and it is an object of the present invention to provide a golf club that increases the directional stability and flight distance of a struck ball.
- the shaft can be hollow, and the shaft vibration damping member can be disposed within the hollow space inside the shaft.
- the shaft attachment member can be made of a plurality of segmented members that are segmented in the peripheral direction, and the shaft insertion hole in the shaft attachment member may have a closed bottom.
- the space between the hosel hole of the head and the outer peripheral surface of the shaft attachment member, and the space between the shaft and the inner peripheral surface of the shaft insertion hole of the shaft attachment member can be filled with an adhesive for fixing the shaft attachment member to the head and shaft.
- the hosel hole in the head can be filled with an adhesive for fixing the shaft to the head.
- the inside diameter of the upper opening of the hosel hole in the head can be substantially the same as the outside diameter of the shaft that is to be inserted into the hosel hole.
- the golf club of the present invention provides an excellent effect that increases the directional stability and flight distance of a struck ball.
- FIG. 1 is a cross sectional view of the golf club of Embodiment 1 according to the present invention.
- FIG. 2 is a top view thereof
- FIG. 3 is a bottom view thereof
- FIG. 4 is an oblique view of the shaft attachment member of used in the golf club of the present invention.
- FIG. 5 shows in cross section the detail of the vicinity of the shaft vibration damping member used in the golf club of the present invention
- FIG. 6 is a cross sectional view of the golf club of Embodiment 2 according to the present invention.
- FIG. 7 is a cross sectional view of the golf club of Embodiment 3 according to the present invention.
- FIG. 8 is an oblique view of the shaft supporting member used in the golf club of Embodiment 3.
- a golf club 10 of Embodiment 1 of the present invention is comprised of a head (clubhead) 12 , through which a hosel hole 12 A is formed, and a shaft 14 fixed to this head 12 .
- the head 12 has a mass of 160 g or larger and 180 g or less; and in this Embodiment, it is designed to have a low center of gravity in order to increase the flight distance.
- the hosel hole 12 A in the head 12 has a tapered shape so that the diameter of the hosel hole 12 A increases from the upper portion of the head 12 toward the bottom.
- the inside diameter of the upper opening of this hosel hole is the same as the outside diameter of the shaft 14 that is to be inserted into the hosel hole 12 A.
- the head 12 is also equipped with a shaft attachment member 16 whose external shape is substantially the same as the shape of the hosel hole 12 A.
- the shaft attachment member 16 is comprised of two segmented members, namely, a first attachment unit 16 A and a second attachment unit 16 B.
- the shaft attachment member 16 is inserted and fixed in the hosel hole 12 A from the bottom side of the head 12 .
- a shaft insertion hole 16 C is formed in the shaft attachment member 16 .
- the centerline axis L 1 of shaft insertion hole 16 C is inclined at a specific angle ⁇ with respect to the sole surface 12 B of the head 12 ; and into the shaft insertion hole 16 C, the shaft 14 is inserted from the upper side of the head 12 .
- the specific angle ⁇ here refers to what is known as the lie angle.
- the lie angle can be suitably set according to the user of the golf club, and it is preferable to set to be an angle of approximately 52° to 61°.
- the shaft 14 has hardness in which the characteristic frequency is 225 cpm or less; and in this Embodiment, the shaft has a closed bottom and is hollow inside.
- the hardness of the shaft of a golf club is generally called “flex,” and the flex is expressed by one of the symbols L, A, R, RS, S, SX, X, and XX, in the order of the increasing hardness of the shaft.
- the characteristic frequency ⁇ at each flex level is 185 cpm for flex L, 205 cpm for flex A, 225 cpm for flex R, 235 cpm for flex RS, 245 cpm for flex S, 255 cpm for flex SX, 265 cpm for flex X, and 275 cpm for flex XX.
- the shaft in the present invention has a characteristic frequency of 225 cpm or less, that is, it has a flex of L, A, or R.
- This shaft 14 is equipped with a shaft vibration damping member 20 within its interior space.
- the shaft vibration damping member 20 comprises a substantially cylindrical fixture component 22 and a vibration component 24 .
- the fixture component 22 is tightly fixed to the shaft 14 and is disposed coaxially with the shaft 14 , and the vibration component 24 is provided in the fixture component 22 so that it is able to vibrate independently from the shaft 14 .
- the vibration component 24 When a ball is struck with a golf club with this shaft vibration damping member 20 installed, the weight of the head 12 and the bending of the shaft 14 during the takeback and downswing of the club prior to striking the ball cause the shaft 14 to vibrate, but the vibration component 24 , when it is in a non-contact state with the shaft 14 , vibrates according to the vibration of the shaft 14 , and if it is in a non-resonant state, then the vibration component 24 acts to suppress the vibration of the shaft.
- vibration component 24 installed, shaking of the head 12 is suppressed when the ball is hit, and the ball is hit much more efficiently, the result of which being a longer flight distance and better directionality of the struck ball. Furthermore, the vibration of the shaft 14 after the ball is struck is quickly attenuated by the vibration of the vibration component 24 , and thus the club feels better in the hand.
- the first step is to coat the inner peripheral surface of the shaft insertion hole 16 C and the outer peripheral surface of the shaft attachment member 16 with an adhesive 18 (see FIG. 1 ), then the shaft 14 is inserted into the shaft insertion hole 16 C from the upper side of the head 12 while the shaft attachment member 16 is inserted into the hosel hole 12 A from the bottom side of the head 12 , and then these components are fixed. As a result, the head 12 and the shaft 14 are fixed via the shaft attachment member 16 .
- the golf club 10 of Embodiment 1 is comprised of the head 12 and the shaft 14 ; and the head 12 has a mass of no more than 180 g and through which is formed the tapered hosel hole 12 A whose diameter increases from the upper portion of the head 12 to the bottom portion, and the shaft 14 has the hardness with the characteristic frequency of 225 cpm or less.
- the head 12 is equipped with the shaft attachment member 16 that can be inserted and fixed in the hosel hole 12 A from the bottom side of the head 12 and that has an external shape which is substantially the same as the shape of the hosel hole 12 A; and inside of this shaft attachment member 16 is formed a shaft insertion hole 16 C that is inclined at a specific angle ⁇ with respect to the sole surface 12 B of the head 12 so that the shaft 14 is inserted in the shaft insertion hole 16 C from the upper side of the head 12 .
- the shaft 14 is equipped with the shaft vibration damping member 20 , and this shaft vibration damping member 20 comprises the substantially cylindrical fixture component 22 and the vibration component 24 ; and the cylindrical fixture component 22 is tightly fixed to the shaft 14 and is disposed in coaxial with the shaft 14 , and the vibration component 24 is provided in the fixture component 22 so that it vibrates independently from the shaft 14 . Therefore, the weight reduction of the head 12 is accomplished, providing an increased head speed; and with the use of a shaft 14 that is soft, the bending of the shaft 14 is effectively utilized. Accordingly, the flight distance of the golf ball will be greater than a conventional golf club.
- the shaft 14 has a hollow structure and the shaft vibration damping member 20 is provided inside the interior space of the shaft 14 , the shaft vibration damping member 20 does not get in the way when the golf club is being used, nor does it adversely affect the appearance of the golf club.
- the shaft attachment member 16 is comprised of two segmented members (the first attachment unit 16 A and the second attachment unit 16 B), the shaft attachment member 16 is easily insertable and fixed in the hosel hole 12 A, making it even easier to attach and adjust the angle of the shaft 14 .
- the inside diameter of the upper opening of the hosel hole 12 A is substantially the same as the outside diameter of the shaft 14 that is inserted in the hosel hole 12 A, the angle of the shaft 14 can be easily adjusted, using the upper opening as the point of support in fixing the shaft 14 in the hosel hole 12 A, and this makes it easier to attach and adjust the angle of the shaft 14 .
- FIG. 6 shows Embodiment 2, and as seen from FIG. 6 , the golf club 30 of Embodiment 2 includes a shaft attachment member 32 that has a shaft insertion hole 32 A with its bottom closed, instead of the shaft attachment member 16 in the golf club 10 of the above-described Embodiment 1.
- the shaft 14 can be attached to the head 12 more securely than in the golf club 10 of Embodiment 1.
- FIG. 7 shows Embodiment 3, and as seen from FIG. 7 , the golf club 40 of Embodiment 3 of the present invention includes a substantially plate-form shaft supporting member 42 that is inserted and fixed near the bottom of the hosel hole 12 A, instead of the shaft attachment member 16 of the golf club 10 of the above-described Embodiment 1.
- the shaft insertion hole 42 A in which the shaft 14 is inserted and supported is formed in the shaft supporting member 42 .
- the shaft supporting member 42 When the shaft supporting member 42 is used to attach the shaft 14 to the head 12 , the shaft supporting member 42 is inserted into the hosel hole 12 A and fixed in a notch 12 A 1 formed in this hosel hole 12 A as shown in FIG. 7 , and the shaft 14 is inserted into the shaft insertion hole 42 A of the shaft supporting member 42 . The space in the hosel hole 12 A is then filled with the adhesive 44 to fix the head 12 and the shaft 14 .
- the golf club 40 of Embodiment 3 is comprised of the head 12 and the shaft 14 ; and the head 12 has a mass of no more than 180 g and through which is formed a tapered hosel hole 12 A whose diameter increases from the upper portion of the head 12 to the bottom portion, and the shaft 14 has a hardness of the characteristic frequency with 225 cpm or less.
- the head 12 is equipped with a substantially plate-form shaft supporting member 42 that is inserted and fixed in the hosel hole 12 A from the bottom side of the head 12 ; and in this shaft supporting member 42 is formed a shaft insertion hole 42 A in which the shaft 14 is inserted and supported.
- the shaft 14 is equipped with the shaft vibration damping member 20 and the vibration component 24 ; and the shaft vibration damping member 20 is comprised of a substantially cylindrical fixture component 22 which is tightly fixed to the shaft 14 and is disposed in coaxial with the shaft 14 , and the vibration component 24 is provided in the fixture component 22 so that it vibrates independently from the shaft 14 . Therefore, just as in the golf club 10 of Embodiment 1, the golf club 40 increases the ball flight distance and stabilizes the directionality of a struck ball.
- the golf club of the present invention is not limited to the shape, structure, and so forth of the golf clubs 10 , 30 and 40 of Embodiments 1 to 3 described above.
- the shaft may have a solid structure, and the shaft vibration damping member 20 may be disposed around the outer periphery of the shaft.
- the shaft attachment member 16 is comprised of two segmented members (the first attachment unit 16 A and the second attachment unit 16 B) in the above Embodiments, but the present invention is not limited to this; and for example, the first attachment unit 16 A and the second attachment unit 16 B can be formed integrally.
- the inside diameter of the upper opening of the hosel hole 12 A is substantially the same as the outside diameter of the shaft 14 to be inserted into the hosel hole 12 A in the above Embodiments; however, the present invention is not limited to this, as long as the shaft 14 can be inserted into the hosel hole 12 A.
Abstract
A golf club that includes a head which has a mass of at least 160 g and no more than 180 g and has a hosel hole and a shaft that has a hardness of characteristic frequency of 225 cpm or less; wherein the head has a shaft attachment member that is inserted and fixed in the hosel hole from the bottom side of the head, and within the shaft attachment member is formed a shaft insertion hole that is inclined with respect to the sole of the head and into which the shaft is inserted from the upper side of the head, and the shaft has a shaft vibration damping member comprising a cylindrical fixture component, which is fixed to the shaft and is disposed coaxially with the shaft, and a vibration component, which is provided in the fixture component and vibrates independently from the shaft.
Description
- 1. Technical Field
- The present invention relates to a golf club that increases the distance of a struck ball and stabilizes the direction of a struck ball.
- 2. Description of the Related Art
- Golf clubs designed to increase the head speed and the flight distance of the golf ball by, for instance, making the head (or clubhead) lighter have been widely known as, for example, disclosed in Japanese Patent Application Laid-Open (Kokai) Nos. 2004-531 and 2003-135629.
- Generally, the striking force F at the moment of impact with such golf clubs is expressed as ½×m×v2 (where m is the mass of the head, and v is the head speed). The striking force F is proportional to the mass m of the clubhead and is also proportional to the square of the head speed v. To increase the flight distance, this striking force F must be increased.
- Nevertheless, in conventional golf clubs, though the head speed v can indeed be increased a certain amount by lightening the clubhead, since a reduction in the mass m of the head results in a reduction in the striking force F, there is a specific limit to how much a head can be lightened, and this approach also makes it difficult to increase the flight distance.
- Also, giving the shaft a suitable amount of flexibility and taking advantage of the bending of the shaft are common ways to increase the flight distance. However, if the shaft is too flexible, the directionality of the struck ball will suffer, and poor directionality becomes a particular problem when the lie angle of the clubhead is off at the point of impact.
- The present invention is to solve the above-described problems, and it is an object of the present invention to provide a golf club that increases the directional stability and flight distance of a struck ball.
- The above object is accomplished by a unique structure of the present invention for a golf club that includes:
-
- a head which has a mass of at least 160 g and no more than 180 g and through which is formed a tapered hosel hole whose diameter increases from the upper portion of the head to the bottom portion of the head, and
- a shaft that has a hardness of characteristic frequency of 225 cpm or less; and in the present invention:
- the head is equipped with a shaft attachment member that is inserted and fixed in the hosel hole from the bottom side of the head and that has an external shape which is substantially the same as the shape of the hosel hole, and within the shaft attachment member is formed a shaft insertion hole that is inclined at a specific angle with respect to the sole surface of the head and into which the shaft is inserted from the upper side of the head, and
- the shaft is equipped therein with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is tightly fixed to the shaft and is disposed coaxially with the shaft, and a vibration component, which is provided in the fixture component and vibrates independently from the shaft.
- In this structure, the shaft can be hollow, and the shaft vibration damping member can be disposed within the hollow space inside the shaft.
- Furthermore, the shaft attachment member can be made of a plurality of segmented members that are segmented in the peripheral direction, and the shaft insertion hole in the shaft attachment member may have a closed bottom.
- In addition, the space between the hosel hole of the head and the outer peripheral surface of the shaft attachment member, and the space between the shaft and the inner peripheral surface of the shaft insertion hole of the shaft attachment member can be filled with an adhesive for fixing the shaft attachment member to the head and shaft.
- The above object is further accomplished by another unique structure of the present invention for a golf club that includes:
-
- a head which has a mass of at least 160 g and no more than 180 g and through which is formed a tapered hosel hole whose diameter increases from the upper portion of the head to the bottom portion of the head, and
- a shaft that has a hardness of characteristic frequency of 225 cpm or less; and in the present invention:
- the head is equipped with a substantially plate-form shaft supporting member that is inserted and fixed in the hosel hole from the bottom side of the head, and within the shaft supporting member is formed a shaft insertion hole in which the shaft is inserted, and
- the shaft is equipped with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is tightly fixed to the shaft and is disposed coaxially with the shaft, and a vibration component, which is provided in the fixture component and vibrates independently from the shaft.
- In this structure, the hosel hole in the head can be filled with an adhesive for fixing the shaft to the head.
- In addition, the inside diameter of the upper opening of the hosel hole in the head can be substantially the same as the outside diameter of the shaft that is to be inserted into the hosel hole.
- With the structure of the present invention described above, the golf club of the present invention provides an excellent effect that increases the directional stability and flight distance of a struck ball.
-
FIG. 1 is a cross sectional view of the golf club of Embodiment 1 according to the present invention; -
FIG. 2 is a top view thereof; -
FIG. 3 is a bottom view thereof; -
FIG. 4 is an oblique view of the shaft attachment member of used in the golf club of the present invention; -
FIG. 5 shows in cross section the detail of the vicinity of the shaft vibration damping member used in the golf club of the present invention; -
FIG. 6 is a cross sectional view of the golf club of Embodiment 2 according to the present invention; -
FIG. 7 is a cross sectional view of the golf club of Embodiment 3 according to the present invention; and -
FIG. 8 is an oblique view of the shaft supporting member used in the golf club of Embodiment 3. - The golf club of the present invention will now be described in detail with respect to the accompanying drawings.
- As shown in FIGS. 1 to 3, a
golf club 10 of Embodiment 1 of the present invention is comprised of a head (clubhead) 12, through which ahosel hole 12A is formed, and ashaft 14 fixed to thishead 12. - The
head 12 has a mass of 160 g or larger and 180 g or less; and in this Embodiment, it is designed to have a low center of gravity in order to increase the flight distance. Thehosel hole 12A in thehead 12 has a tapered shape so that the diameter of thehosel hole 12A increases from the upper portion of thehead 12 toward the bottom. The inside diameter of the upper opening of this hosel hole is the same as the outside diameter of theshaft 14 that is to be inserted into thehosel hole 12A. Thehead 12 is also equipped with ashaft attachment member 16 whose external shape is substantially the same as the shape of thehosel hole 12A. - As shown in
FIG. 4 , theshaft attachment member 16 is comprised of two segmented members, namely, afirst attachment unit 16A and asecond attachment unit 16B. Theshaft attachment member 16 is inserted and fixed in thehosel hole 12A from the bottom side of thehead 12. Ashaft insertion hole 16C is formed in theshaft attachment member 16. The centerline axis L1 ofshaft insertion hole 16C is inclined at a specific angle α with respect to the sole surface 12B of thehead 12; and into theshaft insertion hole 16C, theshaft 14 is inserted from the upper side of thehead 12. The specific angle α here refers to what is known as the lie angle. The lie angle can be suitably set according to the user of the golf club, and it is preferable to set to be an angle of approximately 52° to 61°. - The
shaft 14 has hardness in which the characteristic frequency is 225 cpm or less; and in this Embodiment, the shaft has a closed bottom and is hollow inside. The hardness of the shaft of a golf club is generally called “flex,” and the flex is expressed by one of the symbols L, A, R, RS, S, SX, X, and XX, in the order of the increasing hardness of the shaft. The characteristic frequency ω at each flex level is 185 cpm for flex L, 205 cpm for flex A, 225 cpm for flex R, 235 cpm for flex RS, 245 cpm for flex S, 255 cpm for flex SX, 265 cpm for flex X, and 275 cpm for flex XX. The shaft in the present invention has a characteristic frequency of 225 cpm or less, that is, it has a flex of L, A, or R. Thisshaft 14 is equipped with a shaftvibration damping member 20 within its interior space. - As shown in
FIG. 5 , the shaftvibration damping member 20 comprises a substantiallycylindrical fixture component 22 and a vibration component 24. Thefixture component 22 is tightly fixed to theshaft 14 and is disposed coaxially with theshaft 14, and the vibration component 24 is provided in thefixture component 22 so that it is able to vibrate independently from theshaft 14. - When a ball is struck with a golf club with this shaft
vibration damping member 20 installed, the weight of thehead 12 and the bending of theshaft 14 during the takeback and downswing of the club prior to striking the ball cause theshaft 14 to vibrate, but the vibration component 24, when it is in a non-contact state with theshaft 14, vibrates according to the vibration of theshaft 14, and if it is in a non-resonant state, then the vibration component 24 acts to suppress the vibration of the shaft. - Therefore, with the vibration component 24 installed, shaking of the
head 12 is suppressed when the ball is hit, and the ball is hit much more efficiently, the result of which being a longer flight distance and better directionality of the struck ball. Furthermore, the vibration of theshaft 14 after the ball is struck is quickly attenuated by the vibration of the vibration component 24, and thus the club feels better in the hand. - When the above-described
shaft attachment member 16 is used to attach theshaft 14 to thehead 12, the first step is to coat the inner peripheral surface of theshaft insertion hole 16C and the outer peripheral surface of theshaft attachment member 16 with an adhesive 18 (seeFIG. 1 ), then theshaft 14 is inserted into theshaft insertion hole 16C from the upper side of thehead 12 while theshaft attachment member 16 is inserted into thehosel hole 12A from the bottom side of thehead 12, and then these components are fixed. As a result, thehead 12 and theshaft 14 are fixed via theshaft attachment member 16. - As seen from the above, the
golf club 10 of Embodiment 1 is comprised of thehead 12 and theshaft 14; and thehead 12 has a mass of no more than 180 g and through which is formed the taperedhosel hole 12A whose diameter increases from the upper portion of thehead 12 to the bottom portion, and theshaft 14 has the hardness with the characteristic frequency of 225 cpm or less. Thehead 12 is equipped with theshaft attachment member 16 that can be inserted and fixed in thehosel hole 12A from the bottom side of thehead 12 and that has an external shape which is substantially the same as the shape of thehosel hole 12A; and inside of thisshaft attachment member 16 is formed ashaft insertion hole 16C that is inclined at a specific angle α with respect to the sole surface 12B of thehead 12 so that theshaft 14 is inserted in theshaft insertion hole 16C from the upper side of thehead 12. On the other hand, theshaft 14 is equipped with the shaftvibration damping member 20, and this shaftvibration damping member 20 comprises the substantiallycylindrical fixture component 22 and the vibration component 24; and thecylindrical fixture component 22 is tightly fixed to theshaft 14 and is disposed in coaxial with theshaft 14, and the vibration component 24 is provided in thefixture component 22 so that it vibrates independently from theshaft 14. Therefore, the weight reduction of thehead 12 is accomplished, providing an increased head speed; and with the use of ashaft 14 that is soft, the bending of theshaft 14 is effectively utilized. Accordingly, the flight distance of the golf ball will be greater than a conventional golf club. - Also, excessive vibration by the
shaft 14 is suppressed with the shaftvibration damping member 20, and the lie angle is easily adjustable with theshaft attachment member 16. As a result, the directionality of a struck ball will be more stable than with a conventional golf club. Furthermore, since theshaft attachment member 16 has a tapered shape and its external shape is substantially the same as the shape of thehosel hole 12A, thehead 12 is effectively prevented from coming loose from theshaft 14. - In addition, since the
shaft 14 has a hollow structure and the shaftvibration damping member 20 is provided inside the interior space of theshaft 14, the shaftvibration damping member 20 does not get in the way when the golf club is being used, nor does it adversely affect the appearance of the golf club. - Further, since the
shaft attachment member 16 is comprised of two segmented members (thefirst attachment unit 16A and thesecond attachment unit 16B), theshaft attachment member 16 is easily insertable and fixed in thehosel hole 12A, making it even easier to attach and adjust the angle of theshaft 14. - In addition, since the inside diameter of the upper opening of the
hosel hole 12A is substantially the same as the outside diameter of theshaft 14 that is inserted in thehosel hole 12A, the angle of theshaft 14 can be easily adjusted, using the upper opening as the point of support in fixing theshaft 14 in thehosel hole 12A, and this makes it easier to attach and adjust the angle of theshaft 14. -
FIG. 6 shows Embodiment 2, and as seen fromFIG. 6 , thegolf club 30 of Embodiment 2 includes ashaft attachment member 32 that has ashaft insertion hole 32A with its bottom closed, instead of theshaft attachment member 16 in thegolf club 10 of the above-described Embodiment 1. - In the
golf club 30 of Embodiment 2, since theshaft insertion hole 32A of theshaft attachment member 32 has a closed bottom, theshaft 14 can be attached to thehead 12 more securely than in thegolf club 10 of Embodiment 1. -
FIG. 7 shows Embodiment 3, and as seen fromFIG. 7 , thegolf club 40 of Embodiment 3 of the present invention includes a substantially plate-formshaft supporting member 42 that is inserted and fixed near the bottom of thehosel hole 12A, instead of theshaft attachment member 16 of thegolf club 10 of the above-described Embodiment 1. In addition, as seen fromFIG. 8 , theshaft insertion hole 42A in which theshaft 14 is inserted and supported is formed in theshaft supporting member 42. - When the
shaft supporting member 42 is used to attach theshaft 14 to thehead 12, theshaft supporting member 42 is inserted into thehosel hole 12A and fixed in a notch 12A1 formed in thishosel hole 12A as shown inFIG. 7 , and theshaft 14 is inserted into theshaft insertion hole 42A of theshaft supporting member 42. The space in thehosel hole 12A is then filled with the adhesive 44 to fix thehead 12 and theshaft 14. - As seen from the above, the
golf club 40 of Embodiment 3 is comprised of thehead 12 and theshaft 14; and thehead 12 has a mass of no more than 180 g and through which is formed a taperedhosel hole 12A whose diameter increases from the upper portion of thehead 12 to the bottom portion, and theshaft 14 has a hardness of the characteristic frequency with 225 cpm or less. Thehead 12 is equipped with a substantially plate-formshaft supporting member 42 that is inserted and fixed in thehosel hole 12A from the bottom side of thehead 12; and in thisshaft supporting member 42 is formed ashaft insertion hole 42A in which theshaft 14 is inserted and supported. Theshaft 14 is equipped with the shaftvibration damping member 20 and the vibration component 24; and the shaftvibration damping member 20 is comprised of a substantiallycylindrical fixture component 22 which is tightly fixed to theshaft 14 and is disposed in coaxial with theshaft 14, and the vibration component 24 is provided in thefixture component 22 so that it vibrates independently from theshaft 14. Therefore, just as in thegolf club 10 of Embodiment 1, thegolf club 40 increases the ball flight distance and stabilizes the directionality of a struck ball. - The golf club of the present invention is not limited to the shape, structure, and so forth of the
golf clubs vibration damping member 20 may be disposed around the outer periphery of the shaft. - Also, the
shaft attachment member 16 is comprised of two segmented members (thefirst attachment unit 16A and thesecond attachment unit 16B) in the above Embodiments, but the present invention is not limited to this; and for example, thefirst attachment unit 16A and thesecond attachment unit 16B can be formed integrally. - In addition, the inside diameter of the upper opening of the
hosel hole 12A is substantially the same as the outside diameter of theshaft 14 to be inserted into thehosel hole 12A in the above Embodiments; however, the present invention is not limited to this, as long as theshaft 14 can be inserted into thehosel hole 12A.
Claims (10)
1. A golf club comprising:
a head formed with a tapered hosel hole whose diameter increases from an upper portion of said head to a bottom portion of said head, and
a shaft that is attached at one end thereof to said head; wherein
said head is equipped with a shaft attachment member that is inserted and fixed in said hosel hole from a bottom side of said head and that has an external shape which is substantially the same as a shape of said hosel hole, and within said shaft attachment member is formed a shaft insertion hole that is inclined at a specific angle with respect to a sole surface of said head and into which said shaft is inserted from an upper side of said head, and
said shaft is equipped with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is fixed to said shaft and is disposed coaxially with said shaft, and a vibration component, which is provided in said fixture component and vibrates independently from said shaft.
2. The golf club according to claim 1 , wherein said shaft is hollow, and said shaft vibration damping member is provided in said hollow space of said shaft.
3. The golf club according to claim 1 , wherein said shaft attachment member is comprised of a plurality of segmented members that are segmented in a peripheral direction thereof.
4. The golf club according to claim 1 , wherein said shaft insertion hole in said shaft attachment member is closed at a bottom thereof.
5. The golf club according to claim 1 , wherein a space between said hosel hole of said head and an outer peripheral surface of said shaft attachment member, and a space between said shaft and an inner peripheral surface of said shaft insertion hole of said shaft attachment member are filled with an adhesive for fixing said shaft attachment member to said head and shaft.
6. A golf club comprising:
a head formed with a tapered hosel hole whose diameter increases from an upper portion of said head to a bottom portion of said head, and
a shaft that is attached at one end thereof to said head; wherein
said head is equipped with a substantially plate-form shaft supporting member that is inserted and fixed in a hosel hole from a bottom side of said head, and within said shaft supporting member is formed a shaft insertion hole in which said shaft is inserted, and
said shaft is equipped with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is fixed to said shaft and is disposed coaxially with said shaft, and a vibration component, which is provided in said fixture component and vibrates independently from said shaft.
7. The golf club according to claim 6 , wherein said hosel hole in the head is filled with an adhesive for fixing said shaft to said head.
8. The golf club according to claim 1 or 6 , wherein said head has a mass of at least 160 g and no more than 180 g, and said shaft has a hardness of characteristic frequency of 225 cpm or less;
9. The golf club according to any one of claims 1 to 7 , wherein an inside diameter of an upper opening of said hosel hole in said head is substantially the same as an outside diameter of said shaft that is to be inserted into said hosel hole.
10. The golf club according to claims 8, wherein an inside diameter of an upper opening of said hosel hole in said head is substantially the same as an outside diameter of said shaft that is to be inserted into said hosel hole.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004085389A JP2005270222A (en) | 2004-03-23 | 2004-03-23 | Golf club |
JP2004-85389 | 2004-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050215345A1 true US20050215345A1 (en) | 2005-09-29 |
Family
ID=34990742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/087,888 Abandoned US20050215345A1 (en) | 2004-03-23 | 2005-03-23 | Golf club |
Country Status (2)
Country | Link |
---|---|
US (1) | US20050215345A1 (en) |
JP (1) | JP2005270222A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120100927A1 (en) * | 2008-04-08 | 2012-04-26 | Martin John Lenzini | Inhibiting vibration in sports equipment and hand tools |
CN103041554A (en) * | 2011-10-12 | 2013-04-17 | 邓禄普体育用品株式会社 | Golf club |
US20130095946A1 (en) * | 2011-10-12 | 2013-04-18 | Dunlop Sports Co. Ltd. | Golf club |
US8925790B1 (en) * | 2011-03-01 | 2015-01-06 | David Edel | Method for attaching the hosel to a putter head |
US20150031473A1 (en) * | 2013-07-24 | 2015-01-29 | Fusheng Precision Co., Ltd | Sole with a Shaft Adjusting Hole for a Gold Club Head |
US9364726B2 (en) * | 2014-05-20 | 2016-06-14 | Acushnet Company | Metal wood club |
US20180178086A1 (en) * | 2016-12-28 | 2018-06-28 | Dunlop Sports Co. Ltd. | Golf club |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101302343B1 (en) | 2005-09-16 | 2013-08-30 | 가부시키가이샤 미쓰바 | Vacuum film forming apparatus and vacuum film forming method |
US20110081986A1 (en) * | 2009-10-01 | 2011-04-07 | Nike, Inc. | Golf clubs and golf club heads having a removable mass ring |
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US5538246A (en) * | 1994-08-04 | 1996-07-23 | Daiwa Seiko, Inc. | Golf club |
US6117028A (en) * | 1998-12-17 | 2000-09-12 | You; Chin-San | Shock absorbing device for use in ballgame goods having tubular rod-shaped body |
US6319150B1 (en) * | 1999-05-25 | 2001-11-20 | Frank D. Werner | Face structure for golf club |
US6328660B1 (en) * | 1999-03-01 | 2001-12-11 | Bunn, Iii Julian W. | Method for club fitting |
US6575843B2 (en) * | 2001-10-10 | 2003-06-10 | Acushnet Company | Metal wood golf club head with selectable loft and lie angulation |
-
2004
- 2004-03-23 JP JP2004085389A patent/JP2005270222A/en active Pending
-
2005
- 2005-03-23 US US11/087,888 patent/US20050215345A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5538246A (en) * | 1994-08-04 | 1996-07-23 | Daiwa Seiko, Inc. | Golf club |
US6117028A (en) * | 1998-12-17 | 2000-09-12 | You; Chin-San | Shock absorbing device for use in ballgame goods having tubular rod-shaped body |
US6328660B1 (en) * | 1999-03-01 | 2001-12-11 | Bunn, Iii Julian W. | Method for club fitting |
US6319150B1 (en) * | 1999-05-25 | 2001-11-20 | Frank D. Werner | Face structure for golf club |
US6575843B2 (en) * | 2001-10-10 | 2003-06-10 | Acushnet Company | Metal wood golf club head with selectable loft and lie angulation |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120100927A1 (en) * | 2008-04-08 | 2012-04-26 | Martin John Lenzini | Inhibiting vibration in sports equipment and hand tools |
US8925790B1 (en) * | 2011-03-01 | 2015-01-06 | David Edel | Method for attaching the hosel to a putter head |
CN103041554A (en) * | 2011-10-12 | 2013-04-17 | 邓禄普体育用品株式会社 | Golf club |
US20130095946A1 (en) * | 2011-10-12 | 2013-04-18 | Dunlop Sports Co. Ltd. | Golf club |
US20130095945A1 (en) * | 2011-10-12 | 2013-04-18 | Dunlop Sports Co. Ltd. | Golf club |
US8858355B2 (en) * | 2011-10-12 | 2014-10-14 | Dunlop Sports Co., Ltd. | Golf club |
US8882607B2 (en) * | 2011-10-12 | 2014-11-11 | Dunlop Sports Co. Ltd. | Golf club |
US20150031473A1 (en) * | 2013-07-24 | 2015-01-29 | Fusheng Precision Co., Ltd | Sole with a Shaft Adjusting Hole for a Gold Club Head |
US9364726B2 (en) * | 2014-05-20 | 2016-06-14 | Acushnet Company | Metal wood club |
US20180178086A1 (en) * | 2016-12-28 | 2018-06-28 | Dunlop Sports Co. Ltd. | Golf club |
US10369426B2 (en) * | 2016-12-28 | 2019-08-06 | Sumitomo Rubber Industries, Ltd. | Golf club |
Also Published As
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JP2005270222A (en) | 2005-10-06 |
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