Golf club head and method of fabricating the same

Inactive Publication Date: 2005-01-13
O TA PRECISION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] The softened region can increase the COR of the faceplate and cause a ball to travel a greater distance. Consequently, the faceplate has a high strength sweet spot and higher COR to hit the ball powerfully and successfully.
[0017] The main objective of the invention is to provide a golf club head with a high strength sweet spot and a softened region around the sweet spot to increase the COR of the golf club head to hit balls powerfully and successfully.

Problems solved by technology

However, the stiffness and the toughness of the same material are inversely proportional mechanical properties, which means if the stiffness is increased, the toughness will decrease.

Method used

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  • Golf club head and method of fabricating the same
  • Golf club head and method of fabricating the same
  • Golf club head and method of fabricating the same

Examples

Experimental program
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Embodiment Construction

[0033] With reference to FIGS. 1a, 1b and 3, a golf club head (10) for an iron or a wood in accordance with the present invention includes a body (11) and a faceplate (12). The body (11) has a hosel (110), a face (111) and a shank (112). The hosel (110) is defined at the shank (112) and is adapted to connect to a shaft (not shown) of the golf club. The face (111) is formed on the body (11) and is adapted to hit a golf ball (not shown). The face (111) may be a recess in which the faceplate (12) is mounted.

[0034] The faceplate (12) is attached firmly to or formed integrally on the face (111) of the body (11) by welding, forging or other means and has a center of percussion, called a “sweet spot,” and a softened region (121). The sweet spot represents the spot of desired contact with the ball, and the softened region (121) is formed around the sweet spot by a heat treatment technique. The faceplate (12) is made out of high strength precipitation hardening stainless steel (typical of s...

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PUM

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Abstract

A golf club head or metal wood includes a body and a faceplate. The body has a face adapted to hit a ball. The faceplate has a sweet spot and a softened region. The softened region is formed around the sweet spot in the faceplate by a heat treatment technique. The treatment technique applies a high-frequency current to induce eddy currents in the faceplate and locally heat the faceplate to form the softened region in the faceplate. This, the golf club head will have a higher coefficient of restitution (COR), and the strength of the faceplate is retained to hit the ball successfully and powerfully.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a golf club head and a method of fabricating the same, and more particularly to a golf club head has a faceplate with a modified sweet spot to cause a golf ball to travel a farther distance. [0003] 2. Description of Related Art [0004] Types of golf clubs are woods, irons and putters. Each of them has a grip, a shaft and a head. The shaft has two ends. The grip is attached to one end of the shaft, and the head is attached to the other end of the shaft. The grip is used by a golfer to hold the club, and the head is used to hit balls. The head on a club with a longer shaft hits a ball a greater distance. To hit the ball powerfully and successfully, the head of the golf club is made of high strength material such as metal or composite materials. [0005] Generally speaking, a golfer hits balls with a swing speed from 30 to 50 meters per second (m / s) with an impact duration of about 0.0045 ...

Claims

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Application Information

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IPC IPC(8): A63B53/04
CPCA63B53/0466A63B53/047A63B2053/0416A63B2053/042A63B2053/0454A63B2209/00A63B2053/0408A63B2053/0425A63B53/042A63B53/0425A63B53/0454A63B53/0408A63B53/0416
Inventor CHAO, CHIH-YEHLIN, CHON-CHEN
Owner O TA PRECISION IND
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