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Title:
SEAMLESS GOLF BALL AND METHOD AND APPA- RATUS FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JPH05208053
Kind Code:
A
Abstract:
PURPOSE: To manufacture a golf ball which has a uniform characteristic and noncomformity. CONSTITUTION: An upper metal mold 30 and a lower metal mold 12 have a large number of pins 24, 26 respectively, and a core 28 that has been projectingly and previously manufactured is supported inside hemispherical cavity parts 34 and 36. The lower metal mold 12 on the one side is provided with ejection pins, so that the extrusion of the golf ball after cooling and the separation from the mold thereof can be enabled. Either or both of the upper metal mold 10 and/or the lower metal mold 12 are provided with pouring ports, and heated liquid polymer is supplied to the cavity parts 34, 36 of the respective molds. A plurality of projecting dimples are arranged to the surface of the cavity parts 34, 36 of both the upper metal mold 10 and the lower metal mold 12 of the same hemispherical dimension. Thus, recessed dimples are formed on the surface of a golf ball during the molding work.

Inventors:
SUIIWAADO ESU MIRAA
Application Number:
JP33012591A
Publication Date:
August 20, 1993
Filing Date:
November 19, 1991
Export Citation:
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Assignee:
W P I AKUIJISHIYON CORP
International Classes:
A63B37/00; A63B37/12; A63B45/00; B29C45/00; (IPC1-7): A63B37/00; A63B45/00; B29C45/00
Domestic Patent References:
JPS4938955A1974-04-11
JPS5230863A1977-03-08
JPS61173907A1986-08-05
Attorney, Agent or Firm:
Wakabayashi Hiroshi (1 person outside)



 
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