Title:
MULTI-PIECE SOLID GOLF BALL
Document Type and Number:
Japanese Patent JP3543629
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To give a golf ball an excellent flying performance and an extremely soft and good impact feeling.
SOLUTION: A surrounding layer 2 and intermediate layer 3 have a Shore D hardness from 10 to 50, where the Shore D hardness of the surrounding layer 2 is not more than that of the intermediate layer 3 which is also set not more than that of a cover 4. A solid core 1 exhibits deformation A from 2.5 to 7.0 mm under a load of 100 kg. Under a load of 100 kg, one sphere consisting of the solid core 1 covered in the surrounding layer 2, another consisting of the above sphere further covered in the intermediate layer 3, and the complete ball exhibit respective deformation values B, C and D all measured in millimeters, which satisfy relations: 0.85≤B/A≤1.15, 0.85≤C/B≤1.15, 0.7≤D/C≤1.0.
More Like This:
Inventors:
Junji Hayashi
Hisashi Yamagishi
Dr. Higuchi
Yasumasa Shimizu
Hisashi Yamagishi
Dr. Higuchi
Yasumasa Shimizu
Application Number:
JP23449198A
Publication Date:
July 14, 2004
Filing Date:
August 20, 1998
Export Citation:
Assignee:
Bridgestone Sports Co., Ltd.
International Classes:
A63B37/00; A63B37/04; A63B37/12; (IPC1-7): A63B37/00; A63B37/04
Domestic Patent References:
| JP8336618A | ||||
| JP9299510A | ||||
| JP9056848A | ||||
| JP8299497A |
Attorney, Agent or Firm:
Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Saori Shigematsu
Katsunari Kobayashi