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EP0291434B1 - Vibration-reducing device for tennis rackets - Google Patents

Vibration-reducing device for tennis rackets Download PDF

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Publication number
EP0291434B1
EP0291434B1 EP88440037A EP88440037A EP0291434B1 EP 0291434 B1 EP0291434 B1 EP 0291434B1 EP 88440037 A EP88440037 A EP 88440037A EP 88440037 A EP88440037 A EP 88440037A EP 0291434 B1 EP0291434 B1 EP 0291434B1
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EP
European Patent Office
Prior art keywords
plates
racket
pair
parallel
screen
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 - Lifetime
Application number
EP88440037A
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German (de)
French (fr)
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EP0291434A1 (en
Inventor
Louis Boschian
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Individual
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Individual
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Priority to AT88440037T priority Critical patent/ATE54573T1/en
Publication of EP0291434A1 publication Critical patent/EP0291434A1/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations

Definitions

  • the present invention relates to devices intended to dampen the vibrations induced in tennis rackets at the time of the impact of the ball on the sieve.
  • the damping system consists of a pair of parallel plates of elastomeric material, intended to be inserted on either side of the sieve in a mesh of the latter so as to separate from one another the strings forming this mesh, an additional flyweight uniting these plates at the center of the system, playing the role of damping and additional stabilization.
  • shock absorbers are by no means “universal”, given the immense diversity of snowshoes and their conditions of use.
  • the invention aims to overcome this drawback with a device comprising means for "adjusting" its effects at the discretion of the user.
  • the invention relates to a vibration damping device of the aforementioned type, consisting of a pair of parallel plates of elastomeric material intended to be inserted on either side of the sieve of a racket in a mesh of this sieve. so as to separate the strings from each other by at least one pair of strings forming this mesh, this device being characterized in that it comprises, on the outside of each plate at least one additional removable element, the shape and dimensions can be chosen at will to adapt to the vibration system specific to the racket considered.
  • the device comprises on each side of the screen a stack of several additional discs spaced from each other and playing the role of "antennas", ensuring the suffocation of the components high frequency of the vibration system.
  • It consists of a central body 1, shown here in square section, and having substantially the dimensions of a mesh of the sieve of the racket, formed by the two pairs of strings C 1 '- C'i and C 2 -C ' 2 , in width and thickness.
  • a second pair of plates 4 and 5 identical to each other, but of smaller diameter than plates 2 and 3 is also molded in one piece with the body 1. These auxiliary plates are intended to dampen high frequency vibrations racket.
  • each of the outer plates 4 and 5 is inserted a stud 6 (and 7) integral with a removable plate 8 (and 9), the diameter and thickness of which can be selected by the player depending on the racket used.
  • a stud 6 integral with a removable plate 8 (and 9)
  • This removable and interchangeable nature of elements 6-7 and 8-9 therefore makes it possible to modify the resonance characteristics of the device, and consequently the effects produced on the vibrations of the racket.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Vibration Prevention Devices (AREA)
  • Golf Clubs (AREA)

Abstract

1. Vibration absorber for a tennis racket of the type consisting of a pair of parallel plates (2, 3) made from an elastomeric material and intended to be inserted on either side of the screen of a racket in a mesh thereof so as to move apart the cords (C1 , C'1 ) of at least one pair of cords forming said screen, characterized in that it comprises, on the outside of each plate (2, 3), at least one additional detachable element (8, 9) parallel to the plates (2, 3) and whose shape and dimensions can be chosen at random in order to adapt the vibratory system of the racket in question.

Description

La présente invention concerne les dispositifs destinés à amortir les vibrations induites dans les raquettes de tennis au moment de l'impact de la balle sur le tamis.The present invention relates to devices intended to dampen the vibrations induced in tennis rackets at the time of the impact of the ball on the sieve.

On sait depuis quelques temps que cet impact détermine la création dans tout le cadre et dans le manche lui-même d'un système vibratoire comportant des composantes à haute fréquence, lesquelles sont responsables de la fatigue et des lésions dont sont victimes de nombreux joueurs.We have known for some time that this impact determines the creation throughout the frame and in the handle itself of a vibratory system comprising high frequency components, which are responsible for the fatigue and injuries suffered by many players.

Partant de l'étude de ce phénomène, il a été proposé divers systèmes pour eliminer ces vibrations ou tout au moins les amortir.Starting from the study of this phenomenon, various systems have been proposed to eliminate these vibrations or at least dampen them.

Selon l'une de ces propositions, décrite au brevet DE-A 3 443 009, le système d'amortissement consiste en un couple de plaquettes parallèles en matériau élastomère, destinées à être insérées de part et d'autre du tamis dans une maille de ce dernier de manière à écarter l'une de l'autre les cordes formant cette maille, une masselotte additionnelle réunissant ces plaquettes au centre du système, en jouant le rôle d'amortissement et de stabilisation supplémentaire.According to one of these proposals, described in patent DE-A 3 443 009, the damping system consists of a pair of parallel plates of elastomeric material, intended to be inserted on either side of the sieve in a mesh of the latter so as to separate from one another the strings forming this mesh, an additional flyweight uniting these plates at the center of the system, playing the role of damping and additional stabilization.

Toutefois, il faut considérer que le phénomène considéré, s'il se produit bien avec toutes les raquettes, se développe de manière différente selon la constitution de chaque raquette, de sorte qu'un tel dispositif d'amortissement efficace sur une raquette peut très bien être beaucoup moins efficace sur une autre. On peut d'ailleurs également considérer que le système vibratoire créé par un impact sur une raquette donnée sera différent selon le joueur, qui frappera la balle avec une force moyenne différente d'un joueur à l'autre.However, it must be considered that the phenomenon under consideration, if it occurs well with all rackets, develops differently depending on the constitution of each racket, so that such an effective damping device on a racket can very well be much less effective on another. We can also consider that the vibration system created by an impact on a given racket will be different depending on the player, who will hit the ball with an average force different from one player to another.

L'inconvénient des dispositifs amortisseurs connus est donc de n'être nullement «universels,,, face à l'immense diversité des raquettes et de leurs conditions d'usage.The drawback of known shock absorbers is therefore that they are by no means "universal", given the immense diversity of snowshoes and their conditions of use.

L'invention vise à pallier cet inconvénient grâce à un dispositif comportant des moyens de «réglage» de ses effets au gré de l'utilisateur.The invention aims to overcome this drawback with a device comprising means for "adjusting" its effects at the discretion of the user.

A cet effet, l'invention vise un dispositif amortisseur de vibrations du type précité, consistant en un couple de plaquettes parallèles en matériau élastomère destinées à être insérées de part et d'autre du tamis d'une raquette dans une maille de ce tamis de manière à écarter l'une de l'autre les cordes d'au moins un couple des cordes formant cette maille, ce dispositif étant caractérisé en ce qu'il comporte, sur l'extérieur de chaque plaquette au moins un élément additionnel amovible dont la forme et les dimensions peuvent être choisies à volonté pour s'adapter au système vibratoire propre à la raquette considérée.To this end, the invention relates to a vibration damping device of the aforementioned type, consisting of a pair of parallel plates of elastomeric material intended to be inserted on either side of the sieve of a racket in a mesh of this sieve. so as to separate the strings from each other by at least one pair of strings forming this mesh, this device being characterized in that it comprises, on the outside of each plate at least one additional removable element, the shape and dimensions can be chosen at will to adapt to the vibration system specific to the racket considered.

Selon une seconde caractéristique, au lieu de deux plaquettes séparées par les cordes, le dispositif comporte de chaque côté du tamis un empilement de plusieurs disques additionnels écartés les uns des autres et jouant le rôle d'«antennes», assurant l'étouffement des composantes haute fréquence du système vibratoire.According to a second characteristic, instead of two plates separated by the strings, the device comprises on each side of the screen a stack of several additional discs spaced from each other and playing the role of "antennas", ensuring the suffocation of the components high frequency of the vibration system.

On va maintenant décrire l'invention en se référant au dessin annexé sur lequel:

  • - la figure 1 est une vue de dessus d'un dispositif selon l'invention, partiellement en coupe,
  • - et la figure 2 est une coupe suivant II-II de la figure 1.
We will now describe the invention with reference to the accompanying drawing in which:
  • FIG. 1 is a top view of a device according to the invention, partially in section,
  • - And Figure 2 is a section along II-II of Figure 1.

Le dispositif représenté sur ce dessin constitue un exemple de la réalisation la plus complète de l'invention.The device shown in this drawing constitutes an example of the most complete embodiment of the invention.

Il se compose d'un corps central 1, représenté ici à section carrée, et ayant sensiblement les dimensions d'une maille du tamis de la raquette, formée par les deux couples de cordes C1'- C'i et C2-C'2, en largeur et en épaisseur.It consists of a central body 1, shown here in square section, and having substantially the dimensions of a mesh of the sieve of the racket, formed by the two pairs of strings C 1 '- C'i and C 2 -C ' 2 , in width and thickness.

D'une seule pièce avec ce corps 1, deux plaquettes circulaires identiques entre elles 2 et 3, viennent pincer ces cordes, la mise en place du dispositif se faisant par simple déformation du matériau de ces disques, conformément à la constitution et au rôle du système connu, décrit ci-dessus.In one piece with this body 1, two circular plates identical to each other 2 and 3, pinch these strings, the installation of the device being done by simple deformation of the material of these discs, in accordance with the constitution and the role of known system, described above.

Dans la réalisation représentée, un second couple de plaquettes 4 et 5 identiques entre elles, mais de diamètre inférieur aux plaquettes 2 et 3 est également moulé en une seule pièce avec le corps 1. Ces plaquettes auxiliaires sont destinées à étouffer les vibrations à haute fréquence de la raquette.In the embodiment shown, a second pair of plates 4 and 5 identical to each other, but of smaller diameter than plates 2 and 3 is also molded in one piece with the body 1. These auxiliary plates are intended to dampen high frequency vibrations racket.

Selon la caractéristique essentielle de l'invention, dans chacune des plaquettes extérieures 4 et 5 vient s'insérer un tenon 6 (et 7) solidaire d'une plaquette amovible 8 (et 9), dont le diamètre et l'épaisseur peuvent être sélectionnés par le joueur en fonction de la raquette utilisée. Ce caractère amovible et interchangeable des éléments 6-7 et 8-9 permet donc de modifier les caractéristiques de résonance du dispositif, et par suite les effets produits sur les vibrations de la raquette.According to the essential characteristic of the invention, in each of the outer plates 4 and 5 is inserted a stud 6 (and 7) integral with a removable plate 8 (and 9), the diameter and thickness of which can be selected by the player depending on the racket used. This removable and interchangeable nature of elements 6-7 and 8-9 therefore makes it possible to modify the resonance characteristics of the device, and consequently the effects produced on the vibrations of the racket.

Le dispositif selon l'invention présente donc, sur tous les systèmes connus, le double avantage:

  • - d'étouffer les vibrations hautes fréquences, grâce aux plaquettes extérieures, qui ne sont pas au contact des cordes, et qui jouent le rôle d'«antennes». Ces plaquettes extérieures ne sont pas absolument indispensables, et leurs formes et dimensions ne sont pas nécessairement celles représentées circulaires à titre d'exemple sur le dessin. Toutefois leur utilité est incontestable. Au lieu d'un seul couple de plaquettes extérieures, on peut d'ailleurs en prévoir plusieurs, pour éliminer toutes les harmoniques du système vibratoire:
  • - d'être réglable, par le choix approprié des éléments amovibles. Ces éléments peuvent être adaptés sur le corps du dispositif par des moyens différents des tenons 6 et 7, pourvu que ces moyens permettent la mise en place et le retrait de ces éléments. La forme et les dimensions de ces éléments seront étudiées en fonction des résultats expérimentaux propres à chaque raquette, et même selon le style de jeu de l'utilisateur. La caractéristique essentielle de l'invention est de permettre une telle adaptation qui n'est possible avec aucun dispositif existant.
The device according to the invention therefore has the double advantage over all known systems:
  • - to stifle the high frequency vibrations, thanks to the external plates, which are not in contact with the strings, and which play the role of "antennas". These outer plates are not absolutely essential, and their shapes and dimensions are not necessarily those shown circular by way of example in the drawing. However, their usefulness is indisputable. Instead of a single pair of external pads, we can also provide several, to eliminate all the harmonics of the vibratory system:
  • - to be adjustable, by the appropriate choice of removable elements. These elements can be adapted to the body of the device by means different from the pins 6 and 7, provided that these means allow the positioning and removal of these elements. The shape and dimensions of these elements will be studied according to the experimental results specific to each racket, and even according to the style of play of the user. The essential characteristic of the invention is to allow such adaptation which is not possible with any existing device.

Bien que la description précédente se soit référée aux plaquettes 2-3-4-5-6-8-9-10-11... en termes de «circulaires», ou «disques», il est bien entendu qu'elles peuvent prendre des formes géométriques différentes, telles que notamment triangulaires.Although the preceding description referred to the plates 2-3-4-5-6-8-9-10-11 ... in terms of "circulars", or "discs", it is understood that they can take geometrical forms different triques, such as in particular triangular.

Claims (2)

1. Vibration absorber for a tennis racket of the type consisting of a pair of parallel plates (2, 3) made from an elastomeric material and intended to be inserted on either side of the screen of a racket in a mesh thereof so as to move apart the cords (C1, C'1) of at least one pair of cords forming said screen, characterized in that it comprises, on the outside of each plate (2, 3), at least one additional detachable element (8, 9) parallel to the plates (2, 3) and whose shape and dimensions can be chosen at random in order to adapt the vibratory system of the racket in question.
2. Vibration absorber according to claim 1, characterized in that each of the detachable elements (8, 9) is inserted by a stud (6, 7) in an additional plate (4, 5) parallel to the plates (2, 3) and forming the basic absorber and moulded in one piece with said plates.
EP88440037A 1987-05-13 1988-05-11 Vibration-reducing device for tennis rackets Expired - Lifetime EP0291434B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88440037T ATE54573T1 (en) 1987-05-13 1988-05-11 DEVICE FOR REDUCING VIBRATIONS FOR TENNIS RACKETS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706810A FR2615113A1 (en) 1987-05-13 1987-05-13 IMPROVEMENT TO VIBRATION ATTENUATORS FOR TENNIS RACKETS
FR8706810 1987-05-13

Publications (2)

Publication Number Publication Date
EP0291434A1 EP0291434A1 (en) 1988-11-17
EP0291434B1 true EP0291434B1 (en) 1990-07-18

Family

ID=9351112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88440037A Expired - Lifetime EP0291434B1 (en) 1987-05-13 1988-05-11 Vibration-reducing device for tennis rackets

Country Status (6)

Country Link
US (1) US4909509A (en)
EP (1) EP0291434B1 (en)
AT (1) ATE54573T1 (en)
DE (1) DE3860327D1 (en)
ES (1) ES2016679B3 (en)
FR (1) FR2615113A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039097A (en) * 1990-04-12 1991-08-13 Bartlett William L Snap-on weight for a tennis racket
US5211397A (en) * 1990-06-11 1993-05-18 Prince Manufacturing, Inc. String vibration dampener for a tennis racquet
US5106086A (en) * 1991-10-23 1992-04-21 Acosta Richard J Vibration dampener for rackets
EP0790847B1 (en) * 1993-05-17 2006-06-14 Steven C. Sims, Inc. Vibration damping
FR2734732B1 (en) * 1995-06-02 1997-08-29 Bianchi Jean Claude ANTI-VIBRATION DEVICE FOR BALL GAME RACKET.
US5651545A (en) * 1995-06-07 1997-07-29 Roush Anatrol, Inc. Vibration damping device for stringed racquets
US5935027A (en) * 1995-12-28 1999-08-10 Roush Anatrol, Inc. Multi-mode vibration absorbing device for implements
JPH10211303A (en) * 1997-01-31 1998-08-11 Kimonii:Kk Vibration preventive device for string and frame of racket
US5776020A (en) * 1997-05-19 1998-07-07 Barone; Michael A. Tensioning device for sporting racquets
FR2789320B1 (en) * 1999-02-04 2001-04-27 Jean Claude Bianchi ANTI-VIBRATION WITH ROTARY MECHANISM FOR ANY TENNIS RACKET
US6447411B1 (en) * 1999-02-04 2002-09-10 Jean-Claude Bianchi Vibration damper using a rotary mechanism for all tennis rackets
US7014579B1 (en) * 2004-10-12 2006-03-21 Hung-Fu Sung Shock absorbing device for racket
US20060102441A1 (en) * 2004-11-05 2006-05-18 Nease Charles E Vibration dampener structure for archery bows
US7517293B1 (en) 2006-07-17 2009-04-14 Smith Timothy V Combination tennis scoring and dampening device
US7335118B1 (en) * 2006-12-06 2008-02-26 Hung-Fu Sung Shock absorbing and sound producing device for tennis racket
US8066592B2 (en) * 2007-04-20 2011-11-29 Nike, Inc. Dampening system for stringed-racquet
US7749110B2 (en) * 2007-07-05 2010-07-06 Great Southern Corporation Racquet sport training system
USD884808S1 (en) * 2018-12-27 2020-05-19 David Pacheco Vibration dampener
US11224788B2 (en) 2019-10-29 2022-01-18 Easton Diamond Sports, Llc Vibration-damping end caps for ball bats
IT202200021291A1 (en) * 2022-10-17 2024-04-17 Additive Appliances S R L VIBRATION DAMPER DEVICE FOR A SPORTS RACKET WITH FRAME AND STRING PLATE

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1398833A (en) * 1964-03-31 1965-05-14 Vibration damper for tennis rackets or similar games
DE2642694A1 (en) * 1976-09-20 1978-03-23 Benno Prof Dr Krieg Tennis racket for imparting high degree of spin - has pointed or ribbed insert fitted between strings to increase friction against ball
AT352590B (en) * 1977-03-31 1979-09-25 Fischer Gmbh DEVICE FOR THE ELIMINATION OF VIBRATIONS IN BALL CLUBS
DE3324142A1 (en) * 1983-07-05 1985-01-24 Puma-Sportschuhfabriken Rudolf Dassler Kg, 8522 Herzogenaurach BALL RACKET
US4627635A (en) * 1983-09-20 1986-12-09 Koleda Michael T Vibration damping units and vibration damped products
US4609194A (en) * 1984-05-30 1986-09-02 Krent Edward D Vibration dampening device for sporting rackets
US4776590A (en) * 1984-05-30 1988-10-11 Krent Edward D Vibration dampening device for sporting rackets
DE3443009A1 (en) * 1984-11-26 1986-05-28 Puma-Sportschuhfabriken Rudolf Dassler Kg, 8522 Herzogenaurach Racket, in particular tennis racket
DE3504137A1 (en) * 1985-02-07 1986-08-07 Herbert 8501 Heroldsberg Zöschinger Bat, especially for racket games, such as tennis, badminton, squash and the like
US4761007A (en) * 1985-05-22 1988-08-02 Louis Boschian Device for reducing vibrations of a tennis racquet

Also Published As

Publication number Publication date
US4909509A (en) 1990-03-20
DE3860327D1 (en) 1990-08-23
EP0291434A1 (en) 1988-11-17
ES2016679B3 (en) 1990-11-16
FR2615113A1 (en) 1988-11-18
ATE54573T1 (en) 1990-08-15

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