JPS5476672A - Production of racket frame - Google Patents

Production of racket frame

Info

Publication number
JPS5476672A
JPS5476672A JP14439077A JP14439077A JPS5476672A JP S5476672 A JPS5476672 A JP S5476672A JP 14439077 A JP14439077 A JP 14439077A JP 14439077 A JP14439077 A JP 14439077A JP S5476672 A JPS5476672 A JP S5476672A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
laminate
trs
fibers
tm
etc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14439077A
Inventor
Hiroshi Oota
Toshio Shimada
Shogo Shiokawa
Original Assignee
Nippon Carbon Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To obtain the title uniform frame having a dense structure free from voids, by packing a hollow laminate, impregnated with a thermosetting resin whose hollow part is provided with a pressing tube, into a mold under specific temperature conditions, followed by heating and curing the laminate.
CONSTITUTION: For example, high-moldulus fibers, e.g. carbon fibers, etc. and low-moldulus fibers, e.g. glass fibers, etc. are knitted and braided into cylinders separately, then laminated and impregnated with a thermosetting resin, e.g. epoxy resin, etc. The resin is semi-dried or semi-cured to form the hollow laminate 4. The pressing tube 8 is attached to the hollow part of the laminate 4. The laminate 4 is then packed into the groove 3 of the molds 1 and 2 under the following conditions: Trs≈Tm (Tm is a mold temperature) when Trs is ≥140°C, Trs>Tm when Trs is <140°C. The laminate 4 is hot-cured while being pressurized by a fluid sent to the tube 8 to give the desired racket frame.
COPYRIGHT: (C)1979,JPO&Japio
JP14439077A 1977-11-30 1977-11-30 Production of racket frame Pending JPS5476672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14439077A JPS5476672A (en) 1977-11-30 1977-11-30 Production of racket frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14439077A JPS5476672A (en) 1977-11-30 1977-11-30 Production of racket frame

Publications (1)

Publication Number Publication Date
JPS5476672A true true JPS5476672A (en) 1979-06-19

Family

ID=15361019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14439077A Pending JPS5476672A (en) 1977-11-30 1977-11-30 Production of racket frame

Country Status (1)

Country Link
JP (1) JPS5476672A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6271617A (en) * 1985-08-22 1987-04-02 Budd Co Fiber-reinforced hollow structure and manufacture thereof
WO1997036653A1 (en) * 1996-04-02 1997-10-09 Toray Industries, Inc. Frp racket and method for producing the same
GB2375502A (en) * 2001-03-17 2002-11-20 Visteon Global Tech Inc Moulded composite transverse leaf spring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6271617A (en) * 1985-08-22 1987-04-02 Budd Co Fiber-reinforced hollow structure and manufacture thereof
JPH0351203B2 (en) * 1985-08-22 1991-08-06 Budd Co
WO1997036653A1 (en) * 1996-04-02 1997-10-09 Toray Industries, Inc. Frp racket and method for producing the same
US5897447A (en) * 1996-04-02 1999-04-27 Toray Industries, Inc. FRP racket and method for producing the same
GB2375502A (en) * 2001-03-17 2002-11-20 Visteon Global Tech Inc Moulded composite transverse leaf spring

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