Golf clubs and golf club heads

A technology for golf clubs and club heads, which is applied to golf balls, golf clubs, rackets, etc., and can solve problems such as increasing the initial speed of the ball and flying distance

Inactive Publication Date: 2007-10-03
NIKE INNOVATE CV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in these known golf club heads, it has been impossible to increase the initial velocity of the ball sufficiently to prolong the golf cl

Method used

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  • Golf clubs and golf club heads
  • Golf clubs and golf club heads
  • Golf clubs and golf club heads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] First, a titanium alloy panel having a face having a thickness of 2.8 mm and a flange having a thickness of 1.5 mm, and a base plate of stainless steel (SUS 314) having a thickness of 1.5 mm were respectively forged. Next, the flange surfaces of the face plate and the base plate were roughened by blast working, and then these surfaces were degreased using acetone.

[0074] Next, in the first preform manufacturing step, a prepreg having carbon fibers arranged in two intersecting directions (PYROFIL manufactured by Mitsubishi Rayon Co., Ltd.) is impregnated with epoxy resin.  TR350), and first formed into the general configuration of the sole of a golf club head, thereby forming a first preform (thickness 1.5mm). At this time, hole portions are formed in the first preform so that the threaded holes on the bottom plate are not blocked by the bottom preform.

[0075]Next, in an assembly step, as shown in FIG. 4 , the bottom surface of the first preform 71 is bonded to the...

Embodiment 2

[0083] A golf club head was obtained in the same manner as in Example 1 except that grooves were not formed in the upper mold. The resulting golf club head was identical to the golf club head in Example 1 except that no raised portion was provided.

Embodiment 3

[0085] A golf club head was obtained in the same manner as in Example 2, except that a second preform was formed by laminating prepregs such that the direction of carbon fibers thereof alternated between 0° and 90° with respect to the ball striking face.

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Abstract

A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g., a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.

Description

field of invention [0001] The present invention relates to golf club heads, golf clubs including such golf club heads, and methods of making such golf club heads. In at least some examples, golf club heads according to this invention will be formed from one or more metal components and one or more fiber reinforced plastic (FRP) components. Background technique [0002] Golf clubs and their associated golf club heads require long flight distances and excellent directional stability. In order to meet these demands, a high degree of design freedom for the center of gravity and the moment of inertia is sought in the golf club head structure. In recent years, in order to increase the design freedom of the center of gravity and moment of inertia, a composite material type golf club head has been proposed in which a metal member is placed low and a fiber-reinforced plastic member is placed high (See, eg, Japanese Patent No. 2773009 and Japanese Laid-Open Patent Publication Nos. 5...

Claims

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Application Information

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IPC IPC(8): A63B53/04
CPCA63B53/0466A63B2209/02A63B2053/045A63B2053/0433Y10T29/49947A63B2053/0416A63B2053/0491Y10T156/1043A63B2209/023A63B2053/0437A63B60/02A63B53/0416A63B53/0433A63B53/0437A63B53/045A63B53/04
Inventor 川口洋迈克尔·F·凯利儿玉斎高野恒男
Owner NIKE INNOVATE CV
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