Shock-absorbing golf-club head

• US 6,443,857 B1
• Filed: 01/12/2001
• Issued: 09/03/2002
• Est. Priority Date: 01/12/2001
• Status: Expired due to Fees

• Current Assignee: Renesas Technology Corporation (Renesas Electronics Corporation)
• Original Assignee: Sport Yard Industrial Co., Ltd.
• Inventors: Chuang, Chao-Jan
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US09/759,417
• Publication Number:
  US 20020094883A1
• Time in Patent Office: 599 Days
• Field of Search: 473/324, 473/329, 473/332, 473/342, 473/349, 473/350, 473/326, 473/345
• US Class Current: 473/332
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/002 Clubs made of composite, plastics or rubber materials, with integral head and shaft
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0425 the face insert comprising two or more different materials
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

A shock-absorbing golf club head includes a front recess in the striking face of a golf club head, having a plurality of through holes communicating with a rear recess in order to form a shock-absorbing layer when the front recess and the rear recess are formed into shape. A metal face plate affixed to the striking face is mounted in the front recess. When shock-absorbing material is put into the front and rear recesses, a double layer for shock-absorbing is formed, thereby adding shock-absorbing, shock-lessening, and stability to the golf club head to give better ball control.

Claims

1. A shock-absorbing golf club head comprising:

at least four layers of materials, said layers including

a metal face plate,

a first shock-absorbing layer,

a body of said golf club head, and

a second shock-absorbing layer;

wherein

said body of said golf club head comprises a plurality of through holes, and

said first and second shock absorbing layers are formed from a shock-absorbing material, said shock-absorbing material also fills said through holes in said body of said golf club head, an open space on a top side of said golf club head, and an open groove around a perimeter of said metal face plate;

such that

said shock-absorbing material is exposed on a front side of said golf club head around said perimeter of said metal face plate, said top side of said golf club head, and a rear side of said golf club head, said second shock-absorbing layer covering a majority of said rear side of said golf club head, and

said first shock-absorbing layer is in physical contact with said second shock-absorbing layer, thereby maximizing a damping effect.

2. The golf-club head as claimed in claim 1, wherein:

said shock-absorbing material is a thermoplastic elastomer.

3. The golf-club head as claimed in claim 1, wherein:

said shock-absorbing material is rubber.