JPS5446626A - Racket - Google Patents
RacketInfo
- 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
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
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)
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)
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 |
-
1977
- 1977-09-21 JP JP11272777A patent/JPS5446626A/en active Granted
Patent Citations (2)
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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