JPS6136294Y2 - - Google Patents
Info
- Publication number
- JPS6136294Y2 JPS6136294Y2 JP1980028419U JP2841980U JPS6136294Y2 JP S6136294 Y2 JPS6136294 Y2 JP S6136294Y2 JP 1980028419 U JP1980028419 U JP 1980028419U JP 2841980 U JP2841980 U JP 2841980U JP S6136294 Y2 JPS6136294 Y2 JP S6136294Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- racket
- frame
- yoke member
- hitting
- 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.)
- Expired
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Landscapes
- Golf Clubs (AREA)
Description
【考案の詳細な説明】
この考案は、テニス用ラケツトのヨーク部材の
構造に関し、ヨーク部材を左右一対に分割形成し
て打球時のフレーム打球部の捩れ、撓みに追従さ
せることにより、設計の自由度を高め、かつ性能
の向上を図るようにしたものである。[Detailed description of the invention] This invention relates to the structure of the yoke member of a tennis racket.The yoke member is divided into a pair of left and right parts and is made to follow the twisting and deflection of the ball hitting part of the frame when the ball is hit, allowing for freedom in design. This is designed to increase the degree of accuracy and improve performance.
従来、この種のテニス用ラケツトにおいては、
スロート部に架設されるヨーク部材が、本体と一
体に成形されているか、または別体的にねじ等で
強固に固定され、打球時の衝撃によるフレーム打
球部の捩れ、撓みを防ぐように構成されている。 Conventionally, in this type of tennis racket,
The yoke member installed on the throat part is either molded integrally with the main body or is firmly fixed separately with screws, etc., and is configured to prevent twisting and deflection of the frame hitting part due to impact when hitting the ball. ing.
しかしながら、このような従来構造のもので
は、特に打球時におけるフレーム打球部の適度の
捩れ、撓みは性能上必要であるが、ラケツトフレ
ーム本体に対するヨーク部材の固定部分に応力が
集中し、耐久性に大きな問題が生じ、この欠点を
解決するためには、フレーム打球部のみならずラ
ケツトフレーム全体を極度に硬く設計する必要が
あることから、ラケツト自体の性能の幅を拡げる
自由度に乏しく、設計に限度があつた。 However, with such a conventional structure, moderate twisting and flexing of the ball hitting part of the frame is necessary for performance, especially when hitting a ball, but stress concentrates on the part where the yoke member is fixed to the racket frame body, which reduces durability. In order to solve this problem, it is necessary to design not only the ball-striking part of the frame but also the entire racket frame to be extremely hard, which means that there is little freedom to expand the range of performance of the racket itself. There were limits to the design.
この考案は、上記従来の欠点を解消することを
目的としたもので、以下、図示の実施例に基づい
て説明する。 This invention is aimed at solving the above-mentioned conventional drawbacks, and will be explained below based on the illustrated embodiment.
第１図に示すように、図中１はラケツトフレー
ム本体で、フレーム打球部２、スロート部３、シ
ヤフト部４とから構成され、該スロート部３には
ヨーク部材５が架設されている。 As shown in FIG. 1, reference numeral 1 in the figure is a racket frame body, which is composed of a frame ball-striking section 2, a throat section 3, and a shaft section 4, and a yoke member 5 is installed over the throat section 3.
該ヨーク部材５は、第２図及び第３図に示すよ
うに、中心軸ａ−ａに対して対称的に分割形成さ
れた左右一対の分割体６，６からなり、該両分割
体６，６の一端面６ａ，６ａをラケツトフレーム
本体１のフレーム打球部２の内周側面にビス７等
により固着する一方、互いに対峙する他端自由端
面部６ｂ，６ｂをほゞ半球面凹部に形成し、かつ
これら両端面部６ｂ，６ｂ間に連結部材となるボ
ールベアリング８を挾着させることにより連結す
るなどして、前記左右一対の分割体６，６の端面
の間に全方向に回動可能にした連結部材を介在さ
せてなる構成となつている。 As shown in FIGS. 2 and 3, the yoke member 5 consists of a pair of left and right divided bodies 6, 6 that are symmetrically formed with respect to the central axis a-a. One end surface 6a, 6a of the racket frame body 1 is fixed to the inner circumferential surface of the frame ball-hitting portion 2 with screws 7, etc., while the other free end surface portions 6b, 6b facing each other are formed into a substantially hemispherical concave portion. And, by connecting these end surfaces 6b, 6b by clamping a ball bearing 8 serving as a connecting member between them, it is possible to rotate in all directions between the end surfaces of the pair of left and right divided bodies 6, 6. The structure is such that a connecting member is interposed therebetween.
したがつて、上記したこの考案に係る構成によ
れば、ラケツトフレーム本体１のスロート部３に
架設されるヨーク部材５を左右一対の分割体６，
６で連結形成し、例えばボールベアリング８など
の連結部材を介して全方向に回動自在にしたこと
から、打球時に、フレーム打球部２に捩れ、撓み
が生じた際、その力の方向に追従してヨーク部材
５の連結端部はボールベアリング８を中心に自由
に回動し、フレーム打球部の捩れ、撓みを妨げる
ことがない。 Therefore, according to the configuration according to the invention described above, the yoke member 5 installed on the throat portion 3 of the racket frame body 1 is divided into a pair of left and right divided bodies 6,
6 and is rotatable in all directions via a connecting member such as a ball bearing 8, so that when the frame ball hitting portion 2 is twisted or deflected when hitting a ball, it will follow the direction of the force. The connecting end of the yoke member 5 can freely rotate around the ball bearing 8, without interfering with twisting or bending of the ball-hitting part of the frame.
以上説明したように、この考案はラケツトフレ
ーム本体のスロート部に架設されるヨーク部材
を、打球時のフレーム打球部の捩れ、撓み動作に
追従させたことを特徴とするもので、これによつ
て、ヨーク部材の固定部分における応力の集中を
防ぐことができるために、フレーム全体を柔かく
設計することができ、特に女性や子供といつた非
力なプレーヤに対して最適な剛性をもつラケツト
を容易に設計することができるばかりでなく、中
級・上級者を対象とした剛いラケツトについて
も、弾性を十分に活用した設計が可能になるな
ど、実用性にすぐれた効果を奏するものである。 As explained above, this invention is characterized by making the yoke member installed at the throat part of the racket frame body follow the twisting and bending motion of the ball hitting part of the frame when hitting a ball. This prevents stress concentration at the fixed part of the yoke member, making it possible to design the entire frame to be flexible, making it easy to create a racket with optimal rigidity, especially for weak players such as women and children. This not only makes it possible to design rigid rackets aimed at intermediate and advanced players, but also makes it possible to design rigid rackets that take full advantage of elasticity, resulting in excellent practical effects.
第１図はこの考案に係るテニス用ラケツトの一
実施例を示す説明図、第２図は第１図Ａ部におけ
る要部拡大説明図、第３図は第２図−線にお
ける要部縦断側面図である。
１……ラケツトフレーム本体、２……フレーム
打球部、３……スロート部、５……ヨーク部材、
６，６……分割体、６ａ，６ａ……固定端面部、
６ｂ，６ｂ……連結端面部、７……ねじ、８……
ボールベアリング。
Fig. 1 is an explanatory diagram showing one embodiment of the tennis racket according to this invention, Fig. 2 is an enlarged explanatory diagram of the main part in section A of Fig. 1, and Fig. 3 is a longitudinal cross-sectional side view of the main part taken along the line - Fig. 2. It is a diagram. 1... Racket frame body, 2... Frame ball hitting part, 3... Throat part, 5... Yoke member,
6, 6... divided body, 6a, 6a... fixed end surface part,
6b, 6b...Connecting end face portion, 7...Screw, 8...
ball bearing.
Claims (1)
部材を架設するにあたり、 該ヨーク部材を、左右一対の分割体及び全方向
に回動可能な連結部材で構成し、該連結部材を、
前記左右一対の分割体の間に介在させたことを特
徴とするラケツト。[Claims for Utility Model Registration] When installing a yoke member on the throat portion of the racket frame main body, the yoke member is constituted by a pair of left and right divided bodies and a connecting member rotatable in all directions, and the connecting member is parts,
A racket characterized in that the racket is interposed between the pair of left and right divided bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980028419U JPS6136294Y2 (en) | 1980-03-05 | 1980-03-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980028419U JPS6136294Y2 (en) | 1980-03-05 | 1980-03-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56130764U JPS56130764U (en) | 1981-10-03 |
| JPS6136294Y2 true JPS6136294Y2 (en) | 1986-10-21 |
Family
ID=29624342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980028419U Expired JPS6136294Y2 (en) | 1980-03-05 | 1980-03-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136294Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009261914A (en) * | 2008-03-31 | 2009-11-12 | Mizuno Corp | Racket frame |
-
1980
- 1980-03-05 JP JP1980028419U patent/JPS6136294Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56130764U (en) | 1981-10-03 |
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