JPS54115928A - Molding of frp racket frame with groove - Google Patents

Molding of frp racket frame with groove

Info

Publication number
JPS54115928A
JPS54115928A JP2220378A JP2220378A JPS54115928A JP S54115928 A JPS54115928 A JP S54115928A JP 2220378 A JP2220378 A JP 2220378A JP 2220378 A JP2220378 A JP 2220378A JP S54115928 A JPS54115928 A JP S54115928A
Authority
JP
Japan
Prior art keywords
groove
molding
core material
slices
racket frame
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.)
Granted
Application number
JP2220378A
Other languages
Japanese (ja)
Other versions
JPS6117510B2 (en
Inventor
Itsushi Nagamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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
Application filed by Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP2220378A priority Critical patent/JPS54115928A/en
Publication of JPS54115928A publication Critical patent/JPS54115928A/en
Publication of JPS6117510B2 publication Critical patent/JPS6117510B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE: To improve the moldability of groove on molded racket frame by composing core material of at least three-ply slices laminated in the hitting direction.
CONSTITUTION: A fiber reinforced plastic racket frame of manocoque structure provided peripherally, at least partially, with groove 31, is molded by hot pressing the frame molding material 20 consists of foamed synthetic resin core material 21 wrapped in the fiber reinforced plastic molding prepreg 22. Said core material 21 is composed of the three-ply slices 21a to 21c which are laminated in the hitting direction. The middle slice 21b located at the portion to be compressed, is formed so as to have it's thickness corresponding to the molded width of said groove. When molding the groove by compression of molding die 23, the middle slice is separately compressed having no effect an any other slices, so that overall deformation of the core material may be prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP2220378A 1978-02-28 1978-02-28 Molding of frp racket frame with groove Granted JPS54115928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2220378A JPS54115928A (en) 1978-02-28 1978-02-28 Molding of frp racket frame with groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2220378A JPS54115928A (en) 1978-02-28 1978-02-28 Molding of frp racket frame with groove

Publications (2)

Publication Number Publication Date
JPS54115928A true JPS54115928A (en) 1979-09-08
JPS6117510B2 JPS6117510B2 (en) 1986-05-08

Family

ID=12076227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2220378A Granted JPS54115928A (en) 1978-02-28 1978-02-28 Molding of frp racket frame with groove

Country Status (1)

Country Link
JP (1) JPS54115928A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543043U (en) * 1978-09-13 1980-03-19
JPH05139361A (en) * 1991-11-22 1993-06-08 Kawasaki Heavy Ind Ltd Swing arm made of fiber-reinforced synthetic resin and manufacture thereof
JP2007237506A (en) * 2006-03-07 2007-09-20 Toyota Industries Corp Composite material molded object and its manufacturing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947351A (en) * 1972-05-02 1974-05-08
JPS5119630A (en) * 1974-08-09 1976-02-17 Nippon Carbon Co Ltd
JPS5245328U (en) * 1975-09-25 1977-03-31

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947351A (en) * 1972-05-02 1974-05-08
JPS5119630A (en) * 1974-08-09 1976-02-17 Nippon Carbon Co Ltd
JPS5245328U (en) * 1975-09-25 1977-03-31

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543043U (en) * 1978-09-13 1980-03-19
JPH05139361A (en) * 1991-11-22 1993-06-08 Kawasaki Heavy Ind Ltd Swing arm made of fiber-reinforced synthetic resin and manufacture thereof
JP2007237506A (en) * 2006-03-07 2007-09-20 Toyota Industries Corp Composite material molded object and its manufacturing method
JP4687509B2 (en) * 2006-03-07 2011-05-25 株式会社豊田自動織機 COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME

Also Published As

Publication number Publication date
JPS6117510B2 (en) 1986-05-08

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