Title:
PROCESS FOR MANUFACTURING GOLF CLUB SHAFT
Document Type and Number:
Japanese Patent JP3165060
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To largely improve the working efficiency in comparison with the conventional process and manufacture uniformly molded golf club shafts with a fine reproducibility, in a process for manufacturing a golf club shaft, by the internal pressure molding.
SOLUTION: A prepreg 2 of a reinforcing fiber impregnated with a thermosetting resin is wound around a mandrel 1 to obtain a wound laminate 4, which is then solidified by cooling and drawn from the mandrel 1. Then, an elastomeric tube 5 is inserted in a hollow part of this drawn wound laminate 4a, compressed air 7 is brought in the elastomeric tube 5 to cause an expansion, and with applying the internal pressure, the wound laminate 4a of the prepreg 2 is molded by heating with a metal mold 6 for molding.
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| JP2022068723 | GOLF CLUB SHAFT |
Inventors:
Hitoshi Oyama
Application Number:
JP7703097A
Publication Date:
May 14, 2001
Filing Date:
March 28, 1997
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
A63B53/10; B32B1/08; B32B5/00; A63B102/32; (IPC1-7): A63B53/10
Domestic Patent References:
| JP872157A | ||||
| JP58199134A | ||||
| JP93777A |
Attorney, Agent or Firm:
Kazumi Owada