JPS5446626A - Racket - Google Patents

Racket

Info

Publication number
JPS5446626A
JPS5446626A JP11272777A JP11272777A JPS5446626A JP S5446626 A JPS5446626 A JP S5446626A JP 11272777 A JP11272777 A JP 11272777A JP 11272777 A JP11272777 A JP 11272777A JP S5446626 A JPS5446626 A JP S5446626A
Authority
JP
Japan
Prior art keywords
frame body
sandwich
box construction
approximately
shape
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
JP11272777A
Other languages
Japanese (ja)
Other versions
JPS5611471B2 (en
Inventor
Kunimasa Muroi
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 JP11272777A priority Critical patent/JPS5446626A/en
Publication of JPS5446626A publication Critical patent/JPS5446626A/en
Publication of JPS5611471B2 publication Critical patent/JPS5611471B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)

Abstract

PURPOSE: To provide a racket which has excellent hitting ability, good damping property, wide degree of freedom for designing distribution of rigidity, and good durability, wherein a ginko member and a protective member for gut are not needed, and there is no uncontinuous portion in a neck of a frame body thereof.
CONSTITUTION: A frame body 1 has a hollow FRP box construction or a FRP box construction having a core of low-density form with the shape of the body 1 being a desired thickness, width and length. A head portin 2 of the body 1 is formed approximately into an oval shape, and the head portion 2 is formed with a box construction having two layers which comprise a lower sandwich portion 4 and an upper sandwich portion 5. In the two-layered box construction and between the sandwich portions 4,5 is fitted and adhered a core layer 6 having approximately an oval shape with approximately the same width as that of the head portion 2 so that a sandwich construction is formed. A neck 7 of the frame body of the layer 6 is constituted to have a ginko shape, and the thickness of the layer 6 is about 1/3 of the thickness of the frame body
COPYRIGHT: (C)1979,JPO&Japio
JP11272777A 1977-09-21 1977-09-21 Racket Granted JPS5446626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11272777A JPS5446626A (en) 1977-09-21 1977-09-21 Racket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11272777A JPS5446626A (en) 1977-09-21 1977-09-21 Racket

Publications (2)

Publication Number Publication Date
JPS5446626A true JPS5446626A (en) 1979-04-12
JPS5611471B2 JPS5611471B2 (en) 1981-03-14

Family

ID=14594018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11272777A Granted JPS5446626A (en) 1977-09-21 1977-09-21 Racket

Country Status (1)

Country Link
JP (1) JPS5446626A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117383A1 (en) * 1981-05-02 1982-11-18 Brown, Boveri & Cie Ag, 6800 Mannheim "ELECTROCHEMICAL STORAGE CELL"

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915534A (en) * 1972-04-05 1974-02-12
JPS5134771A (en) * 1974-09-18 1976-03-24 Sanyo Electric Works KORYUDENATSUJITSUKOCHIKENSHUTSUSOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915534A (en) * 1972-04-05 1974-02-12
JPS5134771A (en) * 1974-09-18 1976-03-24 Sanyo Electric Works KORYUDENATSUJITSUKOCHIKENSHUTSUSOCHI

Also Published As

Publication number Publication date
JPS5611471B2 (en) 1981-03-14

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