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Golf club

Inactive Publication Date: 2016-02-25
DUNLOP SPORTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to make a golf club that is reliable and easy to use. This helps to create a better experience for golfers.

Problems solved by technology

For example, golfers who cannot satisfy the performance of the purchased golf club easily change the head and the shaft by themselves.

Method used

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Experimental program
Comparison scheme
Effect test

second embodiment

[0111]FIG. 15 is a cross sectional view of a golf club 100 according to a The golf club 100 has a head 104, a shaft 6, a sleeve 8, a screw 10, and a washer 16. The sleeve 8 is fixed to a tip of the shaft 6. A grip (not shown) is attached to a butt of the shaft 6. A shaft-sleeve assembly 12 is formed by the shaft 6 and the sleeve 8 fixed to each other.

[0112]Unlike the above-mentioned golf club 2, the golf club 100 does not have an intermediate member. As shown in FIG. 15, a head body 106 of the head 104 has a flange 108 in place of the intermediate member. A screw hole 110 is formed in an inner peripheral surface of the flange 108. The screw hole 110 is a female screw. The screw hole 110 is a body screw part. The screw hole 110 is a multiple-thread screw. The screw hole 110 is a double-thread screw. A specification of the screw hole 110 is the same as a specification of the screw part of the inner peripheral surface 56 of the intermediate member 14. A pitch Pt of the screw hole 110 ...

first embodiment

[0121]Furthermore, the inner peripheral surface 56 (female screw) of the intermediate member 14 is the double-thread screw in the Therefore, the time required for attaching and detaching the shaft 6 can be further shortened.

third embodiment

[0122]FIG. 18 is a cross sectional view of a golf club 200 according to a The golf club 200 has a head 204, a shaft 6, a sleeve 8, a screw 206, and a washer 208. The washer 208 is a spring washer. The sleeve 8 is fixed to a tip of the shaft 6. A grip (not shown) is attached to a butt of the shaft 6. A shaft-sleeve assembly 12 is formed by the shaft 6 and the sleeve 8 fixed to each other.

[0123]Unlike the above-mentioned golf club 2, the golf club 100 does not have an intermediate member. As shown in FIG. 18, a head body 210 of the head 204 has a flange 212 in place of the intermediate member. A screw hole 214 is formed in the inner peripheral surface of the flange 212. The screw hole 214 is a female screw. The screw hole 214 is a body screw part. The screw hole 214 is a multiple-thread screw. The screw hole 214 is a double-thread screw. A specification of the screw hole 214 is the same as a specification of the screw part of the inner peripheral surface 56 of the intermediate member...

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PUM

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Abstract

There is provided a golf club including a head and a shaft detachably attached to the head, and having excellent reliability. This golf club includes a head, a shaft, a sleeve, and a screw. The sleeve is fixed to a tip part of the shaft. A head has a head body and an engaging member. The engaging member is fixed to the head body. Rotation of the sleeve to the head is regulated based on engagement between the sleeve and the engaging member. Withdrawal of the sleeve from the head is regulated based on connection between the sleeve and the screw. The screw is a multiple-thread screw.

Description

TECHNICAL FIELD[0001]The present invention relates to a golf club. In particular, the present invention relates to a golf club having a head and a shaft detachably mounted to each other.BACKGROUND ART[0002]A golf club having a head and a shaft detachably mounted to each other has been proposed. It is useful to detachably mount the shaft and the head body to each other for several reasons. If golfers themselves detachably mount the shaft and the head body to each other, the golfers can change the head and the shaft easily. For example, golfers who cannot satisfy the performance of the purchased golf club easily change the head and the shaft by themselves. The golfers themselves can easily assemble an original golf club in which a favorite head and a favorite shaft are combined. The golfers can purchase the favorite head and the favorite shaft, and can assemble the head and the shaft by themselves. Golf club stores can select a combination of a head and a shaft properly corresponding ...

Claims

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Application Information

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IPC IPC(8): A63B53/02A63B53/06
CPCA63B53/02A63B2053/023A63B53/06A63B53/023A63B60/00
Inventor YAMAMOTO, AKIO
Owner DUNLOP SPORTS CO LTD