JP5045957B2 - Golf club shaft and grip - Google Patents

Description

The present invention relates to a golf club in which both the shaft and the grip have a function capable of easily mounting and removing the grip on the shaft of the golf club.

Since the shaft and grip of a conventional golf club are firmly fixed to the shaft with double-sided tape or adhesive, the shaft is firmly bonded and fixed by cutting the grip with a cutter or the like to replace the grip The work of stripping off the grip was also difficult and inconvenient.

When exchanging grips by individuals, the work of inserting the grips into the shaft with double-sided tape or adhesive requires a considerable skill of exchanging technique and is inconvenient.

Further, after replacing the grip, it was inconvenient that the golf club could not be used unless it was left in a well-ventilated place for 24 hours or more and the grip was completely fixed on the shaft.

When a conventional golf club is taken in and out of a golf bag (caddy bag), the golf clubs are entangled with each other, and grips are caught between each other. there were.

Some conventional golf club grips have a convex portion on the grip inner diameter portion. (See Patent Documents 1 and 2)
Japanese Patent Publication No. 2003-180892 Japanese Patent Publication No. 2007-185252

Further, as a method for easily exchanging the shaft and the head portion, there is a method described in Patent Document 3.
Japanese Patent Publication No. 2000-5349

Since the shaft and grip of a conventional golf club are firmly fixed to the shaft with double-sided tape or adhesive, the shaft is firmly bonded and fixed by cutting the grip with a cutter or the like to replace the grip The work of stripping off the grip was also difficult, and there was a drawback that the grip could not be exchanged smoothly from the shaft.

The present invention has been made in view of the above points. The object of the present invention is to easily attach and detach a grip from a shaft of a golf club, which cannot be achieved by a conventional golf club, It is to solve the problem so that the golf club can be easily taken in and out of the caddy bag.

In order to solve the above-described problems, the present invention provides a golf club shaft and grip, wherein the shaft has an outer diameter of a portion to which the grip is attached and a grip end side of the shaft is narrowed toward a head portion side. It has a tapered shape that is thicker, and has a concave groove with a length approximately equal to the length of the grip in the longitudinal direction of the shaft outer peripheral surface of the part where the grip is mounted. The grip has a tapered shape with a width narrowing toward the part side, and the grip has a taper-shaped convex protrusion fitted in the concave groove in the longitudinal direction of the inner peripheral surface.

As a function that can be easily attached to and detached from both the golf club shaft and the grip, the shaft has a tapered concave groove, and the grip has a tapered convex protrusion. It is a golf club in which grips can be easily attached and detached from the shaft.

Since the grip can be freely attached and removed from the shaft, if you have a weak or weak grip with your initial handle or your favorite pattern, make a grip that matches the grip strength of your grip. Therefore, various ways of enjoying can be expected for the user.

When a conventional golf club is taken in and out of a golf bag (caddy bag), the golf clubs are entangled with each other, grips are caught together, and it is difficult to put in and out of the golf bag (caddy bag). Since the golf club can be stored in the golf bag (caddy bag) with the grip removed from the shaft, the golf clubs are not caught between the golf clubs, and the golf club can be easily put in and out of the golf bag (caddy bag).

As a function for mounting the golf club shaft on the hosel of the golf club head part, the head part hosel has the function of a concave groove or convex projection part. Since each part can be separated, compact storage is possible, and slimming of a golf bag (caddy bag) can be expected.

1 is an overall view of a golf club or a cross-sectional explanatory view of a grip portion configuration. It is a section explanatory view of a shaft provided with a female screw part for a fixation screw of a grip in an inner diameter part of a shaft end part. It is explanatory drawing of the shaft provided with the taper-shaped recessed groove | channel on the shaft outer peripheral surface. FIG. 4 is a cross-sectional explanatory view of a shaft shown in FIG. 3. FIG. 5 is a cross-sectional explanatory view of a shaft provided with a female screw portion for a fixing set screw in an inner diameter portion of a shaft end portion shown in FIG. 4. FIG. 6 is a cross-sectional explanatory diagram of a shaft and a grip in which a grip provided with a tapered convex protrusion is mounted on the shaft illustrated in FIG. 5. It is explanatory drawing of the internal thread part of the shaft described in FIG. FIG. 7 is a cross-sectional explanatory view of a state where a grip fixing screw is attached to the shaft shown in FIG. 6. It is explanatory drawing of the grip provided with the taper-shaped convex projection part in the internal diameter part of the grip. It is explanatory drawing of the grip provided with the taper-shaped polygon surface in the internal diameter part of the grip. It is explanatory drawing of the shaft provided with the taper-shaped polygon surface in the outer-diameter surface of the taper-shaped shaft, or the internal thread part for fixing screws in the shaft end part. FIG. 12 is an explanatory cross-sectional view of the shaft illustrated in FIG. 11 with the grip illustrated in FIG. 10 attached thereto. It is a section explanatory view of a fixed set screw which fixes a grip to a shaft.

The outer peripheral surface of the outer diameter part of the shaft end that attaches the grip to the shaft of the golf club is provided with a concave groove equivalent to the length of the grip, and the side walls on both sides of the concave groove are tapered. In addition, the tapered inner surface of the grip is provided with a tapered convex protrusion corresponding to the length of the grip, and the tapered convex protrusion portion of the grip is inserted into the tapered concave groove of the shaft. By inserting the, the taper part of the uneven part of both the shaft and the grip is matched at the insertion end point, and it is safe by attaching and fixing the fixing screw to the female screw part for the fixing screw provided in the shaft, And it is a golf club which can be used functionally.

FIG. 1 is an overall view of a golf club or a cross-sectional explanatory view of a grip portion configuration.
In FIG. 1, the shaft 1 is directed to the outer diameter portion of the shaft 1 where the grip 2 is attached to the golf club toward the head portion 16 side from the end portion of the shaft 1 into which the grip 2 is inserted. Is a shaft having a taper-like length corresponding to the length of the grip 2.

The tapered shape of the outer diameter portion of the shaft 1 is a shape in which the end portion on the grip 2 insertion port side of the shaft 1 is narrowed and thickened toward the head portion 16 side.

FIG. 3 is an explanatory view of a shaft provided with a tapered concave groove on the outer peripheral surface of the shaft.
FIG. 4 is a cross-sectional explanatory view of the shaft shown in FIG.
In these drawings, the length of the grip 2 is equal to the tapered outer peripheral surface 5 of the outer diameter portion of the shaft 1 where the grip 2 is attached to the tapered portion of the shaft 1 from the shaft end side 19 toward the head portion 16 side. The golf club shaft includes a tapered concave groove 3 having a length corresponding to a length, and the side wall portions 4 on both sides of the concave tapered groove 3 are tapered.

The tapered shape of the side wall portion of the tapered concave groove 3 of the shaft 1 is a tapered shape in which the width of the grip insertion port portion of the shaft end portion 19 is wide and the width is narrowed toward the head portion 16 side of the shaft 1.

The length of the tapered portion of the tapered concave groove 3 is about 26 cm to 27 cm, which is approximately the same as the length of the grip.

FIG. 9 is an explanatory view of a grip provided with a tapered convex protrusion on the inner diameter portion of the grip.
In FIG. 9, the golf club grip is provided with a tapered convex protrusion 6 on the inner circumferential surface of the shaft grip 2 that has a length equivalent to the length of the grip 2.

The taper shape of the tapered convex protrusion 6 on the grip inner circumferential surface is such that the width of the side wall of the tapered convex protrusion on the insertion port side of the shaft 1 is narrow, and the taper convex toward the grip end 23 side. It is a taper shape in which the width of the side wall portion of the mold protrusion 6 is widened.

FIG. 2 is a cross-sectional explanatory view of a shaft provided with an internal thread portion for a grip fixing screw at an inner diameter portion of the shaft end portion.
FIG. 5 is a cross-sectional explanatory view of a shaft provided with a female screw portion for a fixing set screw in the inner diameter portion of the shaft end portion.
FIG. 6 is a cross-sectional explanatory view of a shaft and a grip in which a grip provided with a tapered convex protrusion is attached to the shaft shown in FIG.
FIG. 7 is an explanatory view of the female thread portion of the shaft shown in FIG.
FIG. 8 is a cross-sectional explanatory view of a state where a grip fixing screw is attached to the shaft shown in FIG.
FIG. 13 is a cross-sectional explanatory view of a fixing set screw for fixing the grip to the shaft.
In these drawings, the grip 2 with the tapered convex protrusion 6 is inserted into the shaft 1 with the tapered concave groove 3 from the end side of the shaft 1 so that the shaft 1 and the grip 2 are matched and fixed. In addition, the shaft is provided with a female screw portion 10 for the fixing set screw 12 for preventing the grip 2 from coming out of the shaft 1 on the inner diameter portion of the shaft end portion 19 into which the grip 2 is inserted.

The length of the female screw portion 10 for the fixing screw 12 of the grip 2 provided on the inner diameter portion of the shaft end portion 19 is approximately 1 cm to 1.5 cm.

By inserting the tapered convex protrusion 6 of the grip 2 into the tapered concave groove 3 of the golf club shaft, the taper on the concave groove 3 of the shaft and the convex protrusion on the inner circumferential surface of the grip 2 are obtained. Since the taper of 6 matches the taper of the concave and convex portions at the end of inserting the grip 2 to the shaft 1 and the end portion of the grip end portion 23 is crimped by the fixing set screw 12, the shaft 1 and the grip 2 are fixed. The golf club can be used safely without rotating the shaft and grip during use.

After attaching the fixing screw 12 to the female screw portion 10 provided in the inner diameter portion of the shaft end portion 19 to which the grip 2 is attached, the fixing screw 12 is loosened and the fixing screw 12 is detached from the female screw portion 10 of the shaft 1. In order to prevent accidents and the like, by making the length of the male screw portion 13 for the fixing set screw 12 approximately 1.5 cm to 2.0 cm, an unexpected accident that the fixing set screw 12 is detached does not occur. It is a fixed set screw.

Depending on the degree of looseness of the fixing screw 12 attached to the female threaded portion 10 of the shaft end portion 19, the grip 2 and the shaft are removed when a loose gap of about 5 mm is opened at the portion where the grip 2 and the fixing screw 12 are in contact with each other. Since 1 is not fixed, an accident can be prevented by retightening the fixing screw 12 when the user notices play between the grip 2 and the shaft 1.

This grip is provided with a gentle wave-like undulation of about 3 waves around the grip ring section to prevent the fixing screw 12 from loosening the thick part of the grip ring section at the grip end portion 23 side.

On the contact surface portion on the fixing screw 12 side that is in contact with the thick portion of the grip ring section on the grip end portion 23 side, a gentle wave shape of about 3 waves around the contact surface to prevent the fixing screw 12 from loosening. It is a fixed set screw that is undulated.

FIG. 10 is an explanatory diagram of a grip having a tapered polygonal surface on the inner diameter portion of the grip.
FIG. 11 is an explanatory view of a shaft provided with a tapered polygonal surface on the outer diameter surface of the tapered shaft or a female screw portion for a fixing set screw at the shaft end portion.
12 is an explanatory cross-sectional view of the shaft shown in FIG. 11 with the grip shown in FIG. 10 attached thereto.
A golf club having an outer peripheral surface of an outer diameter portion of a shaft end portion 19 where the grip 2 is attached to the golf club is a pentagonal or hexagonal polygonal outer peripheral surface 7 corresponding to the length of the grip 2. It is a shaft.

This is a golf club shaft in which the polygonal outer peripheral surface 7 of the shaft 1 is tapered.

The taper shape of the polygonal outer peripheral surface 7 of the shaft is a taper in which the end side of the shaft 1 into which the grip 2 is inserted is narrowed and thickened toward the head portion 16 side of the shaft 1.

This is a golf club grip in which the polygonal inner peripheral surface 8 of the grip attached to the shaft is a pentagonal or hexagonal polygonal surface similar to the shaft 1.

The head portion, shaft portion, and grip portion can be attached and detached by providing the outer diameter portion of the shaft with a concave groove or polygonal function on both the head portion 16 side of the shaft 1 and the grip 2 side of the shaft 1. It is a golf club that can be easily exchanged and can be freely combined according to the feeling of each user.

The height of the protruding portion of the protruding protrusion 6 provided on the grip inner peripheral surface 15 is about 2 mm higher than the grip inner peripheral surface 15, and the height of the protruding portion protruding from the grip inner peripheral surface 15 is as follows. The width is a tapered convex projection within a range of about 2 mm to 3.5 mm.

The depth of the tapered concave groove 3 provided in the outer peripheral surface portion of the tapered outer peripheral surface 5 of the shaft 1 to which the grip is attached has a depth of about 2.5 mm from the tapered outer peripheral surface 5 of the shaft 1. The groove width is a tapered concave groove in the range of about 3.5 mm to 2 mm.

The shape of the tapered concave groove 3 provided on the tapered outer peripheral surface 5 of the shaft 1 or the shape of the convex portion of the convex protrusion 6 provided on the grip inner diameter surface 15 is a quadrangular shape.

The grip 2 having the tapered convex protrusion 6 is inserted into the tapered concave groove 3 of the shaft 1, and when the concave and convex portions of both the shaft 1 and the grip 2 are matched, the groove bottom 14 and the grip of the tapered concave groove 3 are gripped. There is a gap of at least about 0.5 mm between the protruding portion of the protruding protrusion 6 of the inner diameter surface 15 so that the protruding protrusion 6 does not directly contact, and the groove bottom 14 of the tapered recessed groove 3 and the protruding protrusion. In this configuration, the protruding convex portion 6 does not directly contact.

The grip 2 having the tapered convex protrusion 6 is inserted into the tapered concave groove 3 of the shaft 1, and the twist and undulation are formed on the outer diameter surface of the grip 2 in a state where the concave and convex portions of both the shaft 1 and the grip 2 are matched. It is a structure in which no change occurs.

When the grip 2 with the tapered convex protrusion 6 is inserted into the shaft 1 in the tapered concave groove 3 of the shaft 1 and used, and the golf club is used, the functional part where both the concaves and convexes are matched from the matching point. The height of the convex portions of the tapered concave groove 3 and the tapered convex projection 6 is sufficiently high so that they do not come off or the shaft 1 and the grip 2 are not fixed and a situation such as rotation does not occur. And strength.

The inner diameter hole 15 of the golf club grip 2 body has a cylindrical shape that penetrates through the center axis of the grip 2 body from the insertion opening side of the grip 2 to the shaft 1 to the grip end portion 23.

The grip 2 with the tapered convex protrusion 6 is inserted into the shaft 1 of the tapered concave groove 3, and when the matched concave and convex side walls are in use, the matched concave and convex portions come off or the grip 2 The structure has a strength that does not cause deformation.

By utilizing the function of the present invention, it becomes possible to easily exchange the grip to the shaft, and the use range for the user can be expected to be widened.

Further, by utilizing the function of the present invention, the golf bag (caddy bag) can be easily stored and taken out, and a slim golf bag (caddy bag) can be expected.

DESCRIPTION OF SYMBOLS 1 Shaft 2 Grip 3 Tapered concave groove 4 Side wall part 5 Tapered outer peripheral surface 6 Tapered convex protrusion 7 Polygonal outer peripheral surface 8 Polygonal inner peripheral surface 9 Shaft inner diameter portion 10 Female thread portion 11 Female screw 12 Fixing screw 13 Male screw part 14 Groove bottom part 15 Grip inner peripheral surface 16 Head part 17 Taper part 18 Hole for marker of fixing screw part 19 Shaft end part 20 Face to which the grip of the fixing screw is crimped 21 Tapered shape of shaft Polygon outer peripheral surface 22 Clip insertion port 23 Shaft end

Claims (1)

For golf club shafts and grips, the shaft has a tapered shape in which the outer diameter of the shaft where the grip is mounted is tapered toward the grip end side of the shaft and thicker toward the head side. The concave groove of the length is provided in the longitudinal direction portion of the outer peripheral surface of the shaft where the grip is mounted, and the concave groove has a tapered shape in which the width on the grip end side of the shaft is wide and the width is narrowed toward the head portion side. A golf club shaft and grip, characterized in that the grip has a taper-shaped protruding protrusion that fits in the concave groove in the longitudinal direction of the inner peripheral surface.

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