JPS62192183A - Vibration absorbing apparatus of racket frame - Google Patents
Vibration absorbing apparatus of racket frameInfo
- Publication number
- JPS62192183A JPS62192183A JP61034181A JP3418186A JPS62192183A JP S62192183 A JPS62192183 A JP S62192183A JP 61034181 A JP61034181 A JP 61034181A JP 3418186 A JP3418186 A JP 3418186A JP S62192183 A JPS62192183 A JP S62192183A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- racket
- vibration absorbing
- frame
- racket 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.)
- Pending
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Vibration Prevention Devices (AREA)
- Body Structure For Vehicles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えばテニスラケット等に装備されるラケ
ットフレームの振動吸収装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration absorbing device for a racket frame installed in, for example, a tennis racket.
従来、この種のラケットフレームの振動吸収装置として
は、フレーム本体の外部に簡Ｉｌｌな粘性振子を装着し
て打球時に発生する撮動を減衰させてなる構成を有する
ものが提案されている。Conventionally, as a vibration absorbing device for a racket frame of this type, one has been proposed in which a simple viscous pendulum is attached to the outside of the frame body to damp the vibration that occurs when hitting a ball.
しかしながら、このような従来装置においてｔよ、機構
的に機能分割が曖昧であることから、ラケットの振動特
性との最適なマツチングが困難であるといった問題があ
った。However, in such a conventional device, the mechanical division of functions is ambiguous, making it difficult to optimally match the vibration characteristics of the racket.
この発明は、上記の事情のちとになされたもので、その
目的とするところは、あらゆるラケットにおいて最適の
ダンピング効果が得られるようにしたラケットフレーム
の振動吸収装置を提供することにある。The present invention was made in view of the above circumstances, and its purpose is to provide a vibration absorbing device for a racket frame that can provide an optimal damping effect for any racket.
上記した問題点を解決するために、この発明は、フレー
ム本体内に、高粘性ゴムの両面が板バネ部材でサンドイ
ッチ状に挾持されかつその自由端部に質量体が取着され
た振動吸収体を片持ち状に設置してなる構成としたもの
である。In order to solve the above-mentioned problems, the present invention provides a vibration absorber in which both sides of high-viscosity rubber are sandwiched between leaf spring members and a mass body is attached to the free end of the vibration absorber. It has a structure in which it is installed in a cantilevered manner.
〔作 用）
すなわら、この発明は、上記の構成とすることによって
、フレーム本体のグリップ部内またはヨーク部内に、高
粘性ゴムを片持ち状の板バネ部材でサンドイッチしてそ
の自由端部に質量体を取着した振動吸収体を設置してな
ることから、２打球時にフレーム張弦部に発生する振動
は振動吸収体に伝播して板バネ部材を共振させ、これに
よって高粘性ゴムに剪断変形を起こさせて振動エネルギ
を熱発散させることができるとともに、板バネ部材のス
トローク、質ａ体の質量及び高粘性ゴムの硬度を任意に
選択することにより、あらゆるラケットにＪ５ける特定
の周波数ＷＩ域の振動のみを吸収させることが可能にな
る。[Function] In other words, the present invention has the above-mentioned configuration, and a high viscosity rubber is sandwiched between a cantilevered leaf spring member within the grip portion or the yoke portion of the frame body, and the free end portion of the high viscosity rubber is sandwiched between the grip portion and the yoke portion of the frame body. Since a vibration absorber with a mass body attached is installed, the vibration generated in the stringed part of the frame when the second ball is hit propagates to the vibration absorber and causes the plate spring member to resonate, thereby causing shear deformation in the high viscosity rubber. In addition, by arbitrarily selecting the stroke of the leaf spring member, the mass of the mass, and the hardness of the high viscosity rubber, any racket can be adjusted to a specific frequency WI range of J5. It becomes possible to absorb only vibrations.
以下、この発明を図示実施例に基づいて説明する。 The present invention will be explained below based on illustrated embodiments.
第１図は、この発明に係る振動吸収装置を装置したテニ
スラケットフレームの全体図で、図中１はフレーム本体
である。このフレーム本体１は、フレーム張弦部２と、
ヨーク部３を含むシャフト部４と、このシャフト部４の
端末部に形成されるグリップ部５とから構成されている
とともに、前記グリップ部５内の中空部には、振動吸収
装置が設置されている。FIG. 1 is an overall view of a tennis racket frame equipped with a vibration absorbing device according to the present invention, and numeral 1 in the figure is the frame body. This frame body 1 includes a frame stringing section 2,
It is composed of a shaft part 4 including a yoke part 3 and a grip part 5 formed at the end part of this shaft part 4, and a vibration absorbing device is installed in the hollow part in the grip part 5. There is.
上記振動吸収装置は、第２図及び第３図に示びょうに、
高粘性ゴム６の両面を一対の板バネ部材７．８でサンド
イッチ状に挟持し、かつ該板バネ部材７．８の自由端部
に質は体９をボルト１０、ナツト１１で取着した振動吸
収体１２からなり、この振動吸収体１２を構成する板バ
ネ部材８の他端側を前記フレーム本体１のグリップ部５
内に固着された台座１３上にネジ１４．１４止めしてな
るものである。The above vibration absorbing device is shown in FIGS. 2 and 3,
Both sides of the high viscosity rubber 6 are sandwiched between a pair of leaf spring members 7.8, and a material body 9 is attached to the free end of the leaf spring member 7.8 with bolts 10 and nuts 11. The other end of the leaf spring member 8 constituting the vibration absorber 12 is connected to the grip portion 5 of the frame body 1.
It is formed by fixing screws 14 and 14 onto a pedestal 13 fixed inside.
しかして、上記したＷｌｌ］吸収体１２は、打球時にフ
レーム張弦部２に発生する振動の伝播によって、第２図
２点破線で示すように、高粘性ゴム６を挟持した板バネ
部材７，８が共振して上下運動し、高粘性ゴム６に９１
断変形を起こさせて振動エネルギを熱発散させ、第４図
に示すように振動を急激に減衰させてなるもので、第７
図に示す振動吸収体１２の未装着状態における振動吸収
特性と比較してダンピング効果を高めることを可能にし
ている。Therefore, in the absorber 12 described above, the leaf spring members 7 and 8 holding the high-viscosity rubber 6 between them are caused by the propagation of vibrations generated in the frame stringing section 2 when the ball is hit, as shown by the two-dot broken line in FIG. It resonates and moves up and down, causing high viscosity rubber 6 to move 91
The vibration energy is thermally dissipated by causing deformation, and the vibration is rapidly attenuated as shown in Figure 4.
This makes it possible to enhance the damping effect compared to the vibration absorption characteristics in a state where the vibration absorber 12 is not installed as shown in the figure.
また、第５図及び第６図はラケットの周波数モードに応
じて板バネ部材７．８のストローク、質ｍ休９の質量及
び高粘性ゴム６の硬度（粘性）を選択することにより最
適なダンピング効果が得られるようにした例を示し、第
５図は１次振動のみの吸収例、第６図は２次振動のみの
吸収例を示したもので、これによって、特定の周波数帯
域の振動のみを吸収可能にしている。In addition, FIGS. 5 and 6 show optimal damping by selecting the stroke of the leaf spring member 7, 8, the mass of the spring 9, and the hardness (viscosity) of the high-viscosity rubber 6 according to the frequency mode of the racket. Figure 5 shows an example of absorbing only the primary vibration, and Figure 6 shows an example of absorbing only the secondary vibration. It makes it possible to absorb.
なお、上記の実施例では、振動吸収装置をフレーム本体
のグリップ部内に設置したが、これには限定されず、ヨ
ーク部内に設置してもこの発明の作用・効果を同様に発
揮させることが可能であり、その伯、この発明の要旨を
変えない範囲で種々変形実施可能なことは勿論である。In the above embodiment, the vibration absorbing device is installed inside the grip part of the frame body, but the invention is not limited to this, and even if it is installed inside the yoke part, the functions and effects of the present invention can be exhibited in the same way. Of course, various modifications can be made without departing from the gist of the invention.
（発明の効果）
以上の説明から明らかなように、この発明は、フレーム
本体のグリップ部あるいはヨーク部内に機械的なダンパ
機構を設け、打球時に発生する振動から任意の周波数を
選択して振動を減衰させることができるようにしたこと
から、ラケットの特定の周波数帯域の振動のみを吸収す
ることかできるため、あらゆるラケットにおいて最適な
ダンピング効果が得られるというすぐれた効果を奏する
ものである。(Effects of the Invention) As is clear from the above description, the present invention provides a mechanical damper mechanism in the grip section or yoke section of the frame body, and selects an arbitrary frequency from the vibrations generated when hitting a ball to dampen the vibrations. Since it can be damped, only vibrations in a specific frequency band of the racket can be absorbed, so it has the excellent effect of providing an optimal damping effect for any racket.
第１図はこの発明に係る撮動吸収装置を装着したラケッ
トフレームの一実施例を示す全体図、第２図は同じく要
部拡大断面図、
第３図は同じく一部切欠して示す要部拡大斜視図、
第４図は同じく打球時の撮動吸収特性を示す説明図、
第５図及び第６図は同じく１次モード及び２次モードの
周波数モードに応じた振動吸収特性をそれぞれ示す説明
図、
第７図は撮動吸収装置の未装着状態におけるラケット娠
動吸収特性を示す説明図
である。
１・・・フレーム本体、 ５・・・グリップ部、６・・
・高粘性ゴム、 ７．８・・・板バネ部材、９・・・
質（３％体、 １２・・・振動吸収体。
特許出願人 日木楽器製造株式会社１．どゴｑ
１ ）し−ム本１本
第１図
第２図
第３図
第５図
第６図
第７図Fig. 1 is an overall view showing an embodiment of a racket frame equipped with an image capturing and absorbing device according to the present invention, Fig. 2 is an enlarged cross-sectional view of the main part, and Fig. 3 is a partially cutaway view of the main part. An enlarged perspective view, FIG. 4 is an explanatory diagram showing the absorption characteristics when hitting a ball, and FIGS. 5 and 6 are explanatory diagrams showing the vibration absorption characteristics according to the frequency modes of the primary mode and the secondary mode, respectively. FIG. 7 is an explanatory diagram showing the racket motion absorption characteristics when the imaging absorption device is not attached. 1...Frame body, 5...Grip part, 6...
・High viscosity rubber, 7.8...Plate spring member, 9...
Quality (3% body, 12...vibration absorber. Patent applicant: Hiki Musical Instruments Manufacturing Co., Ltd. 1. Dogoq 1) 1 book Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 Figure 7
Claims (3)
ドイッチ状に挾持されかつその自由端部に質量体が取着
された振動吸収体を片持ち状に設置したラケットフレー
ムの振動吸収装置。(1) A vibration absorbing device for a racket frame in which a vibration absorber is installed in a cantilevered manner on the frame body, the vibration absorber having both sides of rubber sandwiched between leaf spring members and a mass body attached to its free end.
の振動吸収装置において、 該振動吸収体をフレーム本体のグリップ部内に設置した
ことを特徴とする装置。(2) The racket frame vibration absorbing device according to claim 1, wherein the vibration absorber is installed within a grip portion of the frame body.
の振動吸収装置おいて、 該振動吸収体をフレーム本体のヨーク部内に設置したこ
とを特徴とする装置。(3) The racket frame vibration absorbing device according to claim 1, wherein the vibration absorber is installed within a yoke portion of the frame body.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61034181A JPS62192183A (en) | 1986-02-19 | 1986-02-19 | Vibration absorbing apparatus of racket frame |
| DE19873704121 DE3704121A1 (en) | 1986-02-19 | 1987-02-11 | VIBRATION ABSORBER FOR A ROCKET |
| GB8703317A GB2186493B (en) | 1986-02-19 | 1987-02-13 | A vibration absorber for a racket |
| US07/015,941 US4811947A (en) | 1986-02-19 | 1987-02-18 | Vibration absorber for a racket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61034181A JPS62192183A (en) | 1986-02-19 | 1986-02-19 | Vibration absorbing apparatus of racket frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62192183A true JPS62192183A (en) | 1987-08-22 |
Family
ID=12407031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61034181A Pending JPS62192183A (en) | 1986-02-19 | 1986-02-19 | Vibration absorbing apparatus of racket frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62192183A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948131A (en) * | 1988-05-14 | 1990-08-14 | Kabushiki Kaisha Sigel | Vibration dampening racket |
| US20230020641A1 (en) * | 2019-12-23 | 2023-01-19 | Vestas Wind Systems A/S | Modular wind turbine blade with vibration damping |
-
1986
- 1986-02-19 JP JP61034181A patent/JPS62192183A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948131A (en) * | 1988-05-14 | 1990-08-14 | Kabushiki Kaisha Sigel | Vibration dampening racket |
| US20230020641A1 (en) * | 2019-12-23 | 2023-01-19 | Vestas Wind Systems A/S | Modular wind turbine blade with vibration damping |
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