Title:
RACKET FRAME WITH GUT HOLE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPS6211620
Kind Code:
A
Abstract:
A method of making a fiber-reinforced molded racquet frame is disclosed. The method comprises: placing a core including a tube comprising at least one layer of woven reinforcing fibers in a mold shaped to define the frame; providing, as a portion of the mold, a plurality of side-action devices each including at least one needle-like projection; closing the mold; piercing with the projections the weave of the woven reinforcing fibers and the remainder of the core and extending the projections across the mold cavity to define respective stringing-holes passing radially through the mold frame; and injecting a plastics material into the mold around the core and the needle-like projections. A mold for use in the method is also disclosed.
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Inventors:
JIYONASAN SHII MOTSUTO
Application Number:
JP11712686A
Publication Date:
January 20, 1987
Filing Date:
May 21, 1986
Export Citation:
Assignee:
DAIBAASHIFUAIDO PROD CORP
International Classes:
A63B49/10; A63B49/00; B29C45/14; B29C45/26; B29K33/04; B29K105/04; B29K105/08; B29L31/52; (IPC1-7): A63B49/10; B29C45/14; B29C45/26; B29K33/04; B29K105/04; B29K105/08; B29L31/52
Attorney, Agent or Firm:
Kyozo Yuasa
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