JPS63143370U - - Google Patents
Info
- Publication number
- JPS63143370U JPS63143370U JP1987037502U JP3750287U JPS63143370U JP S63143370 U JPS63143370 U JP S63143370U JP 1987037502 U JP1987037502 U JP 1987037502U JP 3750287 U JP3750287 U JP 3750287U JP S63143370 U JPS63143370 U JP S63143370U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- hitting
- connecting portion
- compared
- section modulus
- 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
- Golf Clubs (AREA)
- Laminated Bodies (AREA)
Description
図面は本考案の一実施例を示すものであつて、
第１図は本実施例の正面図、第２図は側面図、第
３図は打球面を形成する枠体の断面図、第４図は
接続部の断面図、第５図は外形寸法を示す正面図
である。
１……ラケツトフレーム、２……枠体、３……
打球面、５……グリツプ部、１０……接続部、Ｘ
……打球方向、Ｙ……打球方向に直交する方向。
The drawings show one embodiment of the present invention,
Fig. 1 is a front view of this embodiment, Fig. 2 is a side view, Fig. 3 is a sectional view of the frame forming the ball hitting surface, Fig. 4 is a sectional view of the connecting part, and Fig. 5 shows the external dimensions. FIG. 1... Racket frame, 2... Frame body, 3...
Ball hitting surface, 5...Grip part, 10...Connection part, X
...The direction of the ball, Y...The direction perpendicular to the direction of the ball.
Claims (1)
される接続部と、接続部の端部に形成されるグリ
ツプ部とから構成されるテニスラケツトフレーム
において、前記接続部の打球方向の面と打球方向
と直交する方向の面との断面係数を、打球面を形
成する枠部の同方向の面の断面係数より１５〜７
０％に減少させ、しかも前記接続部の単位長さ当
りの重量を前記枠部より５０〜８５％に減少させ
たことを特徴とするテニスラケツトフレーム。 In a tennis racket frame composed of a ball-hitting surface, a connecting portion formed continuously from the ball-hitting surface, and a grip portion formed at an end of the connecting portion, a surface of the connecting portion in the ball-hitting direction and The section modulus of the surface in the direction perpendicular to the ball hitting direction is 15 to 7 compared to the section modulus of the surface in the same direction of the frame forming the ball hitting surface.
0%, and furthermore, the weight per unit length of the connection part is reduced by 50 to 85% compared to the frame part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987037502U JPH0440686Y2 (en) | 1987-03-13 | 1987-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987037502U JPH0440686Y2 (en) | 1987-03-13 | 1987-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63143370U true JPS63143370U (en) | 1988-09-21 |
| JPH0440686Y2 JPH0440686Y2 (en) | 1992-09-24 |
Family
ID=30848886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987037502U Expired JPH0440686Y2 (en) | 1987-03-13 | 1987-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440686Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149652U (en) * | 1977-04-28 | 1978-11-25 | ||
| JPS542064U (en) * | 1977-06-07 | 1979-01-08 |
-
1987
- 1987-03-13 JP JP1987037502U patent/JPH0440686Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149652U (en) * | 1977-04-28 | 1978-11-25 | ||
| JPS542064U (en) * | 1977-06-07 | 1979-01-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440686Y2 (en) | 1992-09-24 |