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Golf club head

Inactive Publication Date: 2007-05-24
YONEX CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] The present invention is made in the light of the above problem, and an object of the present invention is to provide a golf club head capable of providing a longer carry of a ball than ever before, by causing a larger repulsive force to act on the ball, which force is produced using deformation of a metallic striking face part at the time when the golf club head strikes the ball.
[0011] When the golf club head strikes a golf ball, the face section is deformed to bulge backward and to compress the closed void section of the reinforced fiber member therebehind. With the compression force, the closed void section is elastically deformed. Elastic restoring forces of the face plate and of the void section are combined to act on the golf ball as a repulsive force, thus increasing the carry of the golf ball.

Problems solved by technology

However, the deformation of the metallic striking face part at the time of striking the ball is very small.
The repulsive force produced from the deformation of the layer alone is small, and the carry of the ball cannot be increased much.

Method used

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Embodiment Construction

[0020] Hereinafter, a description is given of preferred embodiments of the present invention with reference to the accompanying drawings.

[0021] FIGS. 1 to 3 show an iron golf club head according to a preferred embodiment of the present invention. In the front view of FIG. 1, a head body 10 of the club head is formed in a frame-shape composed of a hosel section 1, into which a shaft (not shown) is inserted, a heel section 2 under the hosel section 1, a circular arc-shaped toe section 3, a belt-shaped upper edge section 4 connecting the upper ends of the heel section 2 and of the toe section 3, and a sole 5 connecting the lower ends of the heel section 2 and of the toe section 3.

[0022] As shown in FIGS. 2 and 3, on the back side of the head body 10, a chevron-shaped extension section 6 and a belt-shaped section 7 are provided. The chevron-shaped extension section 6 protrudes upward from the rear edge of the sole section 5 substantially at a right angle thereto. The belt-shaped exten...

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PUM

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Abstract

A metallic frame-shaped iron head body is composed of a heel section, a toe section, an upper edge section connecting superior ends of the heel section and of the toe section, and a sole section. On a front face of the head body, a metallic thin-walled face section having a high coefficient of restitution is provided. The head body includes rear wall sections spaced apart from the face section and extending upward from a rear end of the sole section. A reinforced fiber member is placed in an area surrounded by the face section, the sole section, and the rear wall sections. This reinforced fiber member abuts on a back of the face section to form a closed hollow void section, and apart of a back of the reinforced fiber member is supported on the rear wall sections.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2003-415114, filed on Dec. 12, 2003; the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a golf club head, and more specifically, relates to an iron-type golf club head composed of a metallic head body and a reinforced fiber member. [0004] 2. Description of the Related Art [0005] In publicly-known conventional iron-type golf club heads each composed of a metallic head body and a reinforced fiber member, a metallic striking face part is formed to be thin-walled, and a thick-walled fiber reinforced plastic layer is attached to or filled in the back of the striking face part as shown in Japanese Patent publications No. 65708 / 1992 and No. 88153 / 1993 and Japanese Patent Laid-open publication No. 173513 / 1997. [0006] Such go...

Claims

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Application Information

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IPC IPC(8): A63B53/00A63B53/04
CPCA63B53/0475A63B2053/0416A63B2053/0425A63B53/047A63B2209/02A63B2209/023A63B2209/00A63B53/0425A63B53/0416
Inventor YONEYAMA, KOSAKU
Owner YONEX CO LTD
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