Title:
多層ゴルフボールの製造方法
Document Type and Number:
Japanese Patent JP4058242
Kind Code:
B2
Abstract:
The present invention provides a golf ball and a method for making the ball. Two cups are molded from an elastomer separately from a center. In one embodiment of the method, the cups are molded on both sides of a center mold plate with hemispherical protrusions. The protrusions force the elastomer cup material into cavities in outer mold plates on either side of the center mold plate, thus forming cups with cavities. The solid or fluid-filled center is placed within the cup cavities, and the cups are joined, preferably by raising the temperature of the mold above the cure activation temperature of the cup material. In some embodiments of the cups, the cups can be formed with non-planar mating surfaces that mesh with each other. The non-planar mating surfaces preferably have a pattern that is symmetrical about the cavities, such as concentric ridges or a tongue and a groove.
Inventors:
Brown Robert A
Cavalaro christopher
Cavalaro christopher
Application Number:
JP2000580706A
Publication Date:
March 05, 2008
Filing Date:
November 09, 1999
Export Citation:
Assignee:
ACUSHNET COMPANY
International Classes:
A63B45/00; A63B37/00; A63B37/08; B29C43/02; B29C43/14; B29C65/02; B29D99/00
Domestic Patent References:
| JP58220719A |
Foreign References:
| US5683312 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Kenji Asai
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Kenji Asai