JPH01120868U - - Google Patents
Info
- Publication number
- JPH01120868U JPH01120868U JP1988016991U JP1699188U JPH01120868U JP H01120868 U JPH01120868 U JP H01120868U JP 1988016991 U JP1988016991 U JP 1988016991U JP 1699188 U JP1699188 U JP 1699188U JP H01120868 U JPH01120868 U JP H01120868U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- tennis racket
- hitting surface
- thickness
- 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
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
Landscapes
- Golf Clubs (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
第１図はこの考案の実施例を示す側面図、第２
図は第１図のテニスラケツトの正面図、第３図は
第２図の―線断面説明図、第４図は第２図の
―線断面説明図、第５図は第２図の―線
断面説明図、第６図はたわみ量測定方法の説明図
、第７図はねじれ量測定方法の説明図、第８図は
従来のテニスラケツトの側面図、第９図は他の従
来のテニスラケツトの側面図、第１０図は慣性モ
ーメント測定方法の説明図である。
１…フレーム、Ｆ…フエース面（打球面）、１
１…先端部、１２…中央両側部、１３…基端部。
Figure 1 is a side view showing an embodiment of this invention, Figure 2 is a side view showing an embodiment of this invention.
The figure is a front view of the tennis racket in Figure 1, Figure 3 is an explanatory cross-sectional view along the line - in Figure 2, Figure 4 is an explanatory view in cross-section along the line - in Figure 2, and Figure 5 is a cross-sectional view along the line - in Figure 2. 6 is an explanatory diagram of the method for measuring the amount of deflection, FIG. 7 is an explanatory diagram of the method for measuring the amount of twist, FIG. 8 is a side view of a conventional tennis racket, and FIG. 9 is a side view of another conventional tennis racket. , FIG. 10 is an explanatory diagram of the method for measuring the moment of inertia. 1... Frame, F... Face surface (ball hitting surface), 1
1...Tip part, 12...Central both sides, 13...Proximal end part.
Claims (1)
ニスラケツトにおいて、上記フレームの打球面と
直角な方向の厚みが上記打球面の中央両側部で最
も大となり、これより上方および下方にいくにし
たがつて小となるように形成されていることを特
徴とするテニスラケツト。 ２ フレームの打球面中央両側部における打球面
と直角な方向の厚みが先端部の厚みの１．３〜１
．８倍の範囲に設定されていることを特徴とする
請求項１記載のテニスラケツト。[Claims for Utility Model Registration] 1. In a tennis racket having an annular frame that forms a ball-hitting surface, the thickness of the frame in the direction perpendicular to the ball-hitting surface is greatest at both sides of the center of the ball-hitting surface, and above this and A tennis racket characterized by being formed so that it becomes smaller as it goes downward. 2 The thickness in the direction perpendicular to the ball-hitting surface on both sides of the center of the ball-striking surface of the frame is 1.3 to 1 of the thickness of the tip.
．． 2. The tennis racket according to claim 1, wherein the tennis racket is set to a range of 8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988016991U JPH0530782Y2 (en) | 1988-02-09 | 1988-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988016991U JPH0530782Y2 (en) | 1988-02-09 | 1988-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01120868U true JPH01120868U (en) | 1989-08-16 |
| JPH0530782Y2 JPH0530782Y2 (en) | 1993-08-06 |
Family
ID=31230395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988016991U Expired - Lifetime JPH0530782Y2 (en) | 1988-02-09 | 1988-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530782Y2 (en) |
-
1988
- 1988-02-09 JP JP1988016991U patent/JPH0530782Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530782Y2 (en) | 1993-08-06 |
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