Title:
GOLF CLUB FACE
Document Type and Number:
Japanese Patent JP3719961
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a built-up golf club face which imparts increased structural integrity to a given weight and size.
SOLUTION: This golf club face 10 consists of a ball striking surface 12 and a rear surface 14 on the side opposite to this ball striking surface 12. The rear surface 14 builds up to give the face 10 with a plurality of thicknesses and the face 10 has a first region having a first thickness and a second region having a second thickness smaller than the first thickness. As a result, the face has nearly uniform stress when the impact load of a ball acts thereon. More specifically, the built-up golf club face 10 consists of a perpendicularly reinforcing region 16, a decreased horizontally reinforcing region 18, four analogous built-up quadrants 20a-d made gradually thinner toward the center and a face/sole intersecting region 38 and face/crown intersecting region 40 of increased thicknesses. The thicknesses of the adjacent regions are gradually fused to impart the smoothly built-up surface.
Inventors:
John Bee Cosmatoka
Application Number:
JP2001237951A
Publication Date:
November 24, 2005
Filing Date:
October 22, 1997
Export Citation:
Assignee:
Callaway Golf Company
International Classes:
A63B69/36; (IPC1-7): A63B53/04
Domestic Patent References:
| JP2041006Y2 |
Foreign References:
| US2087685 | ||||
| US4213613 |
Attorney, Agent or Firm:
Tadahiko Ito
Sadao Sasaki
Sadao Sasaki
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