Title:
MULTI-PIECE GOLF BALL AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/120651
Kind Code:
A1
Abstract:
A multi-piece golf ball and a method of manufacturing the golf ball. The golf ball comprises a core (3), an intermediate layer (5), and a cover (7) and characterized in that the core (3) further comprises a spherical body part (31) and a plurality of ribs (32) formed on the body part (31), the intermediate layer (5) is filled in recessed parts (33) surrounded by the ribs (32) and has a layer thickness of the approximately same height as the ribs (32), the ribs (32) are formed so that their widths are increased from the cover side to the core side, the recessed parts (33) are formed in a pyramid shape by the side faces of the ribs (32), and the hardness of the intermediate layer (5) is lower than that of the core (3). By this constitution, the golf ball with sufficiently soft feeling and high repulsion performance can be provided.
Inventors:
NINOMIYA NORIKAZU
ONODA KENJI
OGAWA MASAO
NAKA YURI
ONODA KENJI
OGAWA MASAO
NAKA YURI
Application Number:
PCT/JP2005/010388
Publication Date:
December 22, 2005
Filing Date:
June 07, 2005
Export Citation:
Assignee:
MIZUNO KK (JP)
International Classes:
A63B37/00; A63B37/04; A63B45/00; A63B37/02; (IPC1-7): A63B37/04; A63B45/00
Domestic Patent References:
| WO2004087265A1 | 2004-10-14 |
Foreign References:
| JP2003024472A | 2003-01-28 |
Attorney, Agent or Firm:
Saegusa, Eiji (1-7-1 Doshomachi, Chuo-ku Osaka-sh, Osaka 45, JP)
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