JP6710982B2 - Golf club ring and golf club - Google Patents

Description

The present invention relates to a golf club ring into which a tip portion of a golf club shaft is inserted, and a golf club to which the golf club ring is attached.

It is known to arrange a member such as a ferrule near the hosel hole in order to prevent the stress from being locally concentrated on the shaft near the hosel hole of the golf club (Patent Documents 1 to 7). Further, a golf club in which a shaft holder (sleeve) is attached to the tip of a shaft with a ferrule is also known. (Patent Document 8).

JP 2006-158498 A Japanese Patent Laid-Open No. 2003-93552 JP 2002-177417 A JP-A-2002-771 Japanese Patent Laid-Open No. 7-185048 Actual exploitation Sho 59-69764 51-114160 JP2011-103985

In the golf club in which the ferrule is further arranged on the upper side of the sleeve, the portion of the head protruding from the hosel becomes the upper portion of the sleeve and the ferrule on the upper portion of the sleeve, and this portion may be felt long at the time of addressing and may be difficult to hold.

INDUSTRIAL APPLICABILITY The present invention can prevent the stress from locally concentrating on the shaft portion, the portion of the head protruding from the hosel is short, and can be easily held at the time of addressing. It is an object of the present invention to provide a ring for a golf club, which can increase the adhesive strength of the golf club, and a golf club including the ring for a golf club.

The ring for a golf club of the present invention has a shaft insertion hole through which a shaft is inserted, and is a ring for a golf club mounted on the shaft, which has an upper portion and a lower portion having a diameter larger than the upper portion. The outermost diameter of the upper portion is smaller than the outermost diameter of the lower portion.

In one aspect of the golf club ring of the present invention, the outer peripheral surface on the upper side of the upper portion is an inclined portion whose diameter decreases toward the upper side.

In one aspect of the golf club ring of the present invention, a penetrating portion that communicates the shaft insertion hole and an outer peripheral surface of the upper portion is provided in the upper portion.

A golf club of the present invention has a head having a hosel hole, a sleeve shaft insertion hole, a sleeve inserted into the hosel hole, a shaft inserted into the sleeve shaft insertion hole, and a shaft through which the shaft is inserted. In a golf club having a golf club ring having an insertion hole, the golf club ring has an upper part and a lower part having a diameter larger than the upper part, and the outermost diameter of the upper part is the outermost part of the lower part. The diameter of the sleeve shaft insertion hole is smaller than the diameter, and the sleeve shaft insertion hole has a diameter smaller than that of the lower portion of the golf club ring and an upper portion of the sleeve shaft insertion hole into which the lower portion of the golf club ring is inserted. It is characterized by having.

In one aspect of the golf club of the present invention, in the golf club ring, the upper outer peripheral surface of the upper portion is an inclined portion whose diameter decreases toward the upper side.

In one aspect of the golf club of the present invention, the golf club ring is provided in the upper portion with a penetrating portion that communicates the shaft insertion hole with an outer peripheral surface of the upper portion.

In one aspect of the golf club of the present invention, the outermost diameter of the upper portion of the golf club ring is smaller than the upper portion of the sleeve shaft insertion hole.

In one aspect of the golf club of the present invention, an adhesive is filled between the upper portion of the golf club ring and the inner peripheral surface of the upper portion of the sleeve shaft insertion hole.

In the golf club ring and the golf club of the present invention, it is possible to prevent the stress from being locally concentrated on the shaft portion, and the portion of the head projecting from the hosel is short, so that it is easy to hold when addressing. Therefore, the adhesive force between the golf club ring and the sleeve can be enhanced.

1 is a front view of a golf club ring according to an embodiment. It is a longitudinal cross-sectional view of the golf club ring of FIG. It is a longitudinal cross-sectional view of the sleeve upper part provided with the ring for golf clubs of FIG. It is a longitudinal cross-sectional view of the vicinity of the hosel of the golf club according to the embodiment. FIG. 3A is a side view of a sleeve used in the golf club according to the embodiment. FIG. 3B is a vertical cross-sectional view of this sleeve and a golf club ring attached to the sleeve. FIG. 6 is a perspective view of the sleeve of FIG. 5.

A golf club ring 10 according to the embodiment will be described with reference to FIGS.

The material of the golf club ring 10 is not particularly limited, but for example, celluloid resin or other resin composition can be used.

The golf club ring 10 has a substantially circular ring shape having a shaft insertion hole 14 penetrating in the vertical direction. The diameter C of the shaft insertion hole 14 is smaller than the diameter of the tip portion of the shaft 4 (FIG. 4) inserted into the shaft insertion hole 14. Although not particularly limited, the diameter C is 7 mm or more and 10 mm or less. In this embodiment, the diameter C is 8.3 mm.

The golf club ring 10 has a lower portion 11 and an upper portion 12 having a diameter smaller than that of the lower portion 11. The upper side of the upper portion 12 is a tapered inclined portion 12a whose diameter decreases toward the upper side, and the lower side of the inclined portion 12a has an equal diameter across the longitudinal direction Z except for a penetrating portion 13 described below. Is a cylindrical portion 12b. In the vertical direction Z, the inclination angle θ of the inclined portion 12a with respect to the cylindrical portion 12b is more than 0° and 45° or less. In this embodiment, the inclination angle θ is 17°. The lower portion 11 has a cylindrical shape having a uniform diameter in the vertical direction Z. The vertical direction Z in FIG. 1 is a direction parallel to the central axis 14X of the shaft insertion hole 14. Further, a direction orthogonal to the vertical direction Z is defined as a horizontal direction Y.
The outermost diameter B of the upper part is not particularly limited, but is 7 mm or more and 12 mm or less, and is 10.0 mm in this embodiment. The outermost diameter A of the lower portion is not particularly limited, but is 7.5 mm or more and 13 mm or less, and is 10.3 mm in this embodiment. The outermost diameter B of the upper part is smaller than the outermost diameter A of the lower part.
The height F of the upper portion is not particularly limited, but is 2 mm or more and 10 mm or less. The height H of the lower portion is not particularly limited, but is 1 mm or more and 10 mm or less.

The upper portion 12 is provided with a penetrating portion 13 that penetrates in the radial direction and connects the shaft insertion hole 14 and the upper outer peripheral surface 12g. In this embodiment, two penetrating portions 13 are provided facing each other in the diametrical direction of the upper portion 12, but three or more penetrating portions 13 may be provided. When providing three or more penetrating parts, each penetrating part 13 may be arranged at equal intervals in the circumferential direction. Although the penetrating portion 13 is an elliptical penetrating hole having a length D in the lateral direction in this embodiment, the penetrating portion 13 is not limited to this and may have a shape such as a circle or a polygon. The lateral length D of the penetrating portion 13 is 1 mm or more and 10 mm or less, and is 3.0 mm in this embodiment. The vertical height G of the through portion 13 is 1 mm or more and 5 mm or less, and is 1.8 mm in this embodiment.

Hereinafter, the golf club 1 according to the embodiment will be described with reference to FIGS. In this golf club 1, a golf club ring 10 and a sleeve 5 with a shaft 4 are inserted into a hosel hole 3H of a hosel 3 of a head 2 and detachably fixed with a bolt (fixing screw) 6. In this embodiment, the head 2 is a hollow wood type, but may be an iron type, a utility type or the like.

The hosel hole 3H has an open upper end, and a bolt insertion hole 7a is provided in the bottom surface portion 7 at the lower end. The bolt 6 is screwed into the sleeve screw hole 6h of the sleeve 5 through the bolt insertion hole 7a. The vertical direction Z in FIG. 5B is a direction parallel to the central axis 6A of the sleeve screw hole 6h. Further, a direction orthogonal to the vertical direction Z is defined as a horizontal direction Y. The vertical direction Z in FIG. 1 and the vertical direction Z in FIG. 5B are the same direction.

In this embodiment, the axial direction 9X of the sleeve shaft insertion hole 9 is the same as the vertical direction Z, but may be inclined with respect to the vertical direction Z.

The hosel hole 3H has a hosel hole upper portion 3a, a hosel hole middle portion 3b, and a hosel hole lower portion 3c. A female spline 8a formed so as to engage with a male spline 8b of a sleeve engaging portion 5a described below is provided on the inner peripheral surface of the hosel hole upper portion 3a. The hosel hole middle portion 3b has an inner diameter into which the sleeve middle portion 5b of the sleeve 5 described below can be inserted. The hosel hole lower portion 3c has the same diameter as the hosel hole middle portion 3b.

As shown in FIGS. 5 and 6, the sleeve 5 has a sleeve upper portion 5d, a sleeve engaging portion 5a, a sleeve intermediate portion 5b, and a sleeve lower portion 5c, which are arranged in this order from the upper side. A male spline 8b is provided on the outer peripheral surface of the sleeve engaging portion 5a.

The side surface (outer peripheral surface) of the sleeve upper portion 5d is composed of a cylindrical surface portion 5e and an inclined surface portion 5f above the cylindrical surface portion 5e, the diameter of which becomes smaller toward the upper side.

The inclination angle α of the inclined surface portion 5f with respect to the vertical direction is more than 0° and 45° or less. In this embodiment, the inclination angle α is 14°. Thereby, as in the conventional case, a ferrule having a side surface with an inclination angle is attached to the tip side of the shaft, and the ferrule is brought into contact with the sleeve top surface 5g to reduce the difference between the outer diameter of the shaft and the outer diameter of the sleeve top surface. There is no need to do that.

The diameter of the cylindrical surface portion 5e is larger than that of the sleeve engaging portion 5a, and the boundary portion between the cylindrical surface portion 5e and the sleeve engaging portion 5a is a step-shaped sleeve hosel upper surface contact portion 5s.

The sleeve 5 is inserted into the hosel hole 3H while engaging the female spline 8a of the hosel hole 3H and the male spline 8b of the sleeve 5 until the sleeve hosel upper surface contact portion 5s contacts the upper end 3t of the hosel 3. .

The sleeve middle portion 5b has a smaller diameter (outer diameter) than the sleeve engagement portion 5a and a larger diameter (outer diameter) than the sleeve lower portion 5c. At least a part of the sleeve middle portion 5b may have an outer peripheral surface portion that extends in the same direction as the vertical direction Z and a curved surface portion that is recessed toward the central axis of the sleeve shaft insertion hole. In this embodiment, the sleeve middle portion 5b has an outer peripheral surface portion extending in the same direction as the vertical direction Z.

A sleeve shaft insertion hole 9 is provided downward from the sleeve top surface 5g. The sleeve shaft insertion hole 9 has a large diameter sleeve shaft insertion hole upper portion 9a, a small diameter sleeve shaft insertion hole lower portion 9c, and a sleeve shaft insertion hole transition portion 9b therebetween. The sleeve shaft insertion hole transition portion 9b has a smaller diameter toward the lower side. The inner peripheral surface 9i of the sleeve shaft insertion hole transition portion 9b may be tapered, and has a curvature that curves so as to be convex toward the axial center of the sleeve shaft insertion hole 9 in the longitudinal direction of the sleeve 5 in the circumferential direction. You may have over. In this embodiment, the inner peripheral surface 9i has a curving curvature in the circumferential direction. Thereby, when the golf ball is hit, stress is prevented from concentrating on the shaft 4 in the vicinity of between the sleeve shaft insertion hole upper portion 9a and the sleeve shaft insertion hole lower portion 9c.

The inner diameter (diameter) d ₁ of the sleeve shaft insertion hole lower portion 9c is smaller than the lowermost outer diameter A of the golf club ring 10. The inner diameter (diameter) d ₂ of the upper portion 9a of the sleeve shaft insertion hole is large enough to allow the lower portion 11 of the golf club ring 10 to be inserted. The inner diameter d ₂ of the sleeve shaft insertion hole upper portion 9 a is larger than the outermost diameter B of the upper portion 12 of the golf club ring 10. Thus, when the golf club ring 10 is inserted into the sleeve shaft insertion hole upper portion 9a, a comparison is made between the inner peripheral surface 9n of the sleeve shaft insertion hole upper portion 9a and the outer peripheral surface 12g of the upper portion 12 of the golf club ring 10. A wide gap can be generated. By filling the gap with an adhesive, the adhesive force between the golf club ring 10 and the sleeve 5 can be increased, and the golf club ring can be prevented from shifting from the shaft when hitting the golf ball.
Further, by providing the penetrating portion 13 on the golf club ring 10, the penetrating portion 13 is also filled with the adhesive. Thereby, the adhesive force between the golf club ring 10, the sleeve 5, and the shaft can be further increased.

By disposing the golf club ring 10 between the sleeve shaft insertion hole upper portion 9a and the shaft 4, it is possible to prevent stress from locally concentrating on the shaft 4 in the vicinity of the sleeve shaft insertion hole upper portion 9a. The golf club ring 10 is inserted into the sleeve shaft insertion hole 9 until it abuts on a boundary portion 9k between the sleeve shaft insertion hole upper portion 9a and the sleeve shaft insertion hole transition portion 9b. The axial length L ₁ of the sleeve shaft insertion hole upper portion 9a is smaller than the height E (height F+height H) of the golf club ring 10. When the golf club ring 10 is attached to the sleeve 5, the difference T=L ₁ −E between the axial length L ₁ of the sleeve shaft insertion hole upper portion 9 a and the height E of the golf club ring 10 is set. Only, it projects from the top surface 5g of the sleeve 5. The protrusion length T is 0.5 mm or more and 2 mm or less. In this embodiment, the protrusion length T is 1 mm. If the protrusion length T is too large, this portion may be perceived as long at the time of addressing, and it may be difficult to hold.

The height I of the inclined portion 12a is preferably equal to or larger than the protrusion length T. As a result, the portion of the golf club ring 10 that projects from the top surface 5g of the sleeve 5g is only the inclined portion 12a. In this embodiment, the height I and the protruding length T of the inclined portion 12a are the same.

In this golf club 1, the inclined portion 12a of the golf club ring 10 projects upward from the upper top surface 5g of the sleeve 5, and the upper end surface 10g of the golf club ring 10 and the outer diameter of the shaft 4 are separated from each other. The difference is small and it is easy to hold when addressing. In addition, since the inclined surface portion 5f is provided on the side surface of the sleeve upper portion 5d and has an inclined angle, the difference between the upper end surface 5g of the sleeve 5 and the outer diameter of the shaft 4 is small, and it is easier to hold when addressing.

As a procedure for fixing the shaft 4, the golf club ring 10 and the sleeve 5, the shaft 4 is first inserted into the shaft insertion hole 14 of the golf club ring 10. Next, an adhesive is applied around the golf club ring 10 and around the tip of the shaft 4. Next, the golf club ring 10 is inserted into the sleeve shaft insertion hole 9 until it abuts on the boundary 9k between the sleeve shaft insertion hole upper portion 9a and the sleeve shaft insertion hole transition portion 9b, and the adhesive sticking out of the sleeve insertion hole is adhered. The shaft 4, the golf club ring 10, and the sleeve 5 are fixed by wiping off the agent and curing the adhesive. However, the fixing procedure is not limited to this.

In the golf club ring 10 and the golf club 1, by filling an adhesive between the outer peripheral surface 12g of the upper portion 12 of the golf club ring 10 and the inner peripheral surface 9n of the sleeve shaft insertion hole 9a, The adhesive force between the golf club ring 10 and the sleeve 5 can be enhanced. This can prevent the golf club ring from being displaced from the shaft when hitting the golf ball.

The above embodiment is an example of the present invention, and the present invention may have a configuration other than the above. For example, in a sleeveless golf club, the golf club ring 10 may be inserted directly into the hosel hole of the golf club head.

1 Golf Club 2 Head 3 Hosel 3H Hosel Hole 4 Shaft 5 Sleeve 6 Bolt 9 Sleeve Shaft Insertion Hole 10 Golf Club Ring 11 Lower Golf Club Ring 12 Upper Golf Club Ring 13 Penetration 14 Shaft Through Hole

Claims (7)

A head with a hosel hole,
A sleeve which has a sleeve shaft insertion hole and is inserted into the hosel hole;
A shaft inserted into the sleeve shaft insertion hole,
In a golf club having a golf club ring having a shaft insertion hole through which a shaft is inserted,
The golf club ring has an upper portion and a lower portion having a larger diameter than the upper portion, and the outermost diameter of the upper portion is smaller than the outermost diameter of the lower portion,
The upper portion of the golf club ring projects from the sleeve by a length T, and the projecting length T is 0.5 to 2.0 mm.
The sleeve shaft insertion hole has a lower portion of the sleeve shaft insertion hole having a diameter smaller than that of the lower portion of the golf club ring, and an upper portion of the sleeve shaft insertion hole into which the lower portion of the golf club ring is inserted. A golf club characterized by. 2. The golf club according to claim 1 , wherein the golf club ring has an inclined outer surface on the upper side of the upper portion, the diameter of which decreases toward the upper side. According to claim 1 or 2, wherein the golf club ring, the upper, the shaft insertion hole and a golf club, wherein a through portion communicating with the outer peripheral surface of the upper portion. The golf club according to any one of claims 1 to 3 , wherein an outermost diameter of the upper portion of the golf club ring is smaller than an upper portion of the sleeve shaft insertion hole. The golf club according to any one of claims 1 to 4 , wherein an adhesive is filled between an upper portion of the golf club ring and an inner peripheral surface of an upper portion of the sleeve shaft insertion hole. 6. The golf club ring according to claim 1, wherein an outer peripheral surface on the upper side of the upper portion of the golf club ring is an inclined portion whose diameter decreases toward the upper side , and the height I of the inclined portion is the protrusion. Gorufukura Bed characterized in that it is the same as the length T. The golf club according to any one of claims 1 to 6, wherein an inclined surface portion (5f) is provided on a side surface of an upper portion (5d) of the sleeve.

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