Shock-absorbing golf-club head

Information

  • Patent Grant
  • 6443857
  • Patent Number
    6,443,857
  • Date Filed
    Friday, January 12, 2001
    23 years ago
  • Date Issued
    Tuesday, September 3, 2002
    22 years ago
  • Inventors
  • Examiners
    • Passaniti; Sebastiano
    Agents
    • Pro-Techtor International Services
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.
Description




BACKGROUND OF THE INVENTION




This invention relates to a shock-absorbing golf club head, particularly to one having a double-deck shock-absorbing layer to effectively absorb wrenching and shock force caused by hitting to achieve effective shock-absorbing, shock-lessening, and stability of ball-controlling.




Generally, when a golfer swings a golf club in striking a ball, the striking face of the golf club will give rise to a kind of wrenching and shock force, which may hurt a golfer's wrists.




In order to eliminate such drawbacks, some conventional golf club heads are integrally provided with a shock-absorbing layer for absorbing the wrench and shock force caused by hitting. U.S. Pat. No. 5,772,527 is a typical example.




In accordance with U.S. Pat. No. 5,772,527, the striking face


21


of a golf club head


2


is provided with a recess


22


having projections


23


around a front circumferential edge to be fixedly mounted with a metal face plate


25


by welding, sealing the recess


22


and forming an intermediate hollow with a slot


24


on an upper edge for injecting shock-absorbing material into the recess


22


to form a shock-absorbing layer


1


, as shown in

FIGS. 1

,


2


, and


3


.




However, the wrench and shock force of a golf club head caused by hitting takes place instantly and spreads so quickly that it can hardly be absorbed completely by the single shock-absorbing layer inside the striking face of the golf club head.




SUMMARY OF THE INVENTION




The objective of this invention is to offer a golf club head having a double layer for shock absorbing, able to effectively absorb the wrench and shock force caused by hitting, enabling a golfer to acquire stability of ball controlling.











BRIEF DESCRIPTION OF DRAWINGS




This invention will be better understood by referring to the accompanying drawings, wherein:





FIG. 1

is a perspective view or a known conventional golf club head with a metal faceplate separated:





FIG. 2

is a perspective view of the known conventional golf club head:





FIG. 3

is a side cross-sectional view of the known conventional golf club head.





FIG. 4

is an exploded perspective view of a golf club head with a metal faceplate separated in the present invention:





FIG. 5

is a rear view of the golf club head half completed in the present invention.





FIG. 6

is a front view of the golf club head in the present invention:





FIG. 7

is a rear view of the golf club head in present invention:





FIG. 8

is a vertical side cross-sectional view of the golf club head in the present invention: and





FIG. 9

is a horizontal side cross-sectional view of the golf club head in the present invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




A preferred embodiment of a shock-absorbing golf club head in the present invention, as shown in

FIGS. 4 and 5

, includes a front recess


32


in the striking face of a golf club head, extending to the top and the rear portions of the striking face and communicating with a rear recess


33


by means of a plurality of through holes


321


. Then, a shock-absorbing layer


4


is formed into shape and affixed to the front and the rear recesses


32


and


33


, and a metal face plate


34


is fixedly mounted on the front recess


32


, having a dented portion around its circumferential edge fixed with the striking face synchronously when the shock-absorbing layer


4


is formed and affixed to the front and the rear recess


32


and


33


, as shown in

FIGS. 6

,


7


,


8


, and


9


.




In addition, the shock-absorbing layer


4


is formed by compression with shock-absorbing material such as pure rubber or thermoplastic elastomers (so called TPE).




Further,

FIG. 8

shows that the front and the rear recesses


32


,


33


are respectively provided with a shock-absorbing layer


4


formed integrally to make up a double layer for shock-absorbing. With this design, the front shock-absorbing layer


4


in the striking face can directly absorb or lessen the wrench and shock force caused by hitting, and subsequently the rear shock-absorbing layer


4


in the rear recess


33


will completely absorb or eliminate the remaining shock force, thus obtaining an effectiveness of shock-absorbing, shock-lessening and stability of controlling balls.




While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.



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.
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Number Name Date Kind
2034936 Barnhart Mar 1936 A
2429351 Fetterolf Oct 1947 A
4027885 Rogers Jun 1977 A
4398965 Campau Aug 1983 A
4523759 Igarashi Jun 1985 A
4664383 Aizawa May 1987 A
5078397 Aizawa Jan 1992 A
5301941 Allen Apr 1994 A
5398929 Kitaichi Mar 1995 A
5425535 Gee Jun 1995 A
5492327 Biafore Feb 1996 A
5766092 Mimeur Jun 1998 A
5772527 Liu Jun 1998 A
5899821 Hsu May 1999 A
6042486 Gallagher Mar 2000 A
6093116 Hettinger Jul 2000 A