EP0208639B1 - Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern - Google Patents

Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern Download PDF

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Publication number
EP0208639B1
EP0208639B1 EP86440038A EP86440038A EP0208639B1 EP 0208639 B1 EP0208639 B1 EP 0208639B1 EP 86440038 A EP86440038 A EP 86440038A EP 86440038 A EP86440038 A EP 86440038A EP 0208639 B1 EP0208639 B1 EP 0208639B1
Authority
EP
European Patent Office
Prior art keywords
strings
tennis racket
string system
torus
elastomeric material
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
EP86440038A
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English (en)
French (fr)
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EP0208639A1 (de
Inventor
Louis Boschian
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Individual
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Individual
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Filing date
Publication date
Priority claimed from FR8507830A external-priority patent/FR2582224B1/fr
Priority claimed from FR8511356A external-priority patent/FR2585257B1/fr
Application filed by Individual filed Critical Individual
Priority to AT86440038T priority Critical patent/ATE59310T1/de
Publication of EP0208639A1 publication Critical patent/EP0208639A1/de
Application granted granted Critical
Publication of EP0208639B1 publication Critical patent/EP0208639B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 attenuate the vibrations of a tennis racket when the ball is struck. It is well known that each stroke struck with the racket causes high frequency vibrations of the racket, and that these vibrations are attributed to the harmful effects on the player, in the hand and arm, including affection known as "tennis elbow".
  • the document FR-A 1 398 833 presents a vibration damper for tennis rackets or other similar games, constituted by a plate of elastomeric material which is engaged in a quadrilateral formed by four contiguous strings, this damper being mounted with a some play between the hub and the rope.
  • the document FR-A 2 385 417 proposes to couple at least two longitudinal parallel cords with an element of elastomeric material molded or glued over these two cords outside the transverse cords so as to bring them together. the other.
  • the "active" element is a counterweight centered with respect to the device, and connected to it by flexible elements which transmit the vibrations to it in its entirety.
  • this counterweight is located in the center of the device and connected to it by a flexible membrane secured to at least part of its periphery.
  • the counterweight can for example consist of a steel ball trapped between two thin films of the elastomeric material, playing the role of said membrane. It can also come from molding with said membrane and the entire device.
  • the counterweight is formed by two plates each located in a plane above the cords and joined by small columns of elastomeric material playing the role of the device for spacing the four adjacent cords mentioned above.
  • the racket R consists, in the usual way, of a frame 1, a handle 2, longitudinal strings 3 and transverse strings 4
  • the device according to the invention consists of a disc 5 inserted in the square delimited by the strings 3a, 3b, 4a and 4b. As can be seen in FIG. 2, it has on its periphery a groove in which are housed said strings of said square, which ensures that device 5 is kept in place.
  • the diameter D of the groove is approximately 2 to 3 mm greater than the distance d between the two corresponding cords 4a-4b; if the disc is exactly circular, this diameter D is also greater by the distance between the strings 3a-3b. If the device 5 is slightly oblong, as shown in FIG. 1, to take account of the geometry of the rope, its diameter D ′ in the longitudinal direction will be correspondingly greater than d ′.
  • the device 5 once in place, therefore deviates about 2 to 3 mm from each other each pair of parallel strings 3a-3b and 4a-4b. This results in an equidirectional action on the string represented by the arrows F. Experience shows that this action already has the consequence of damping and considerably attenuating the vibrations which normally arise in the racket at each impact on the ball.
  • an advantage of this device is that it is removable, instead of being glued or molded on site like devices of the same kind already. propo sés, and in particular those described in the aforementioned French document. It can therefore be placed in the area of the rope where it exerts its optimal effect.
  • the device can be circular or slightly oblong. It can also consist of a solid disc or a ring as shown. We can also give it any other shape (square, etc ). It can be made of any elastomeric material, the flexibility of which allows it to be put in place without damaging the strings, while retaining sufficient rigidity to ensure the spacing of the strings under the effect of the forces F.
  • the device also consists of a torus 10, also made of elastomeric material, and in a groove 11 of which are housed the four cords C forming one of the mesh of the racket sieve, as described with reference to FIGS. 1 and 2, but comprising, moreover, according to the invention, a steel ball 12 trapped between two thin membranes 13_a-13_b made of elastomeric material also and integral with the torus 10 in its median plane.
  • the embodiment shown in section in FIG. 4 differs from the previous one in that, instead of a steel ball, trapped between two membranes, there is provided, for the same effect, a counterweight 14 molded in a single piece with a single membrane 15, itself integral with the torus 10.
  • the connection zones 16 of this torus 10 with the membrane 15 are advantageously chamfered.
  • the counterweight 12 or 14 when the racket hits the ball will receive the vibrations of the racket, transmitted by the membrane (s), and experience shows that thanks to the presence of this vibrating, foreign element with the racket, the composition of the various phenomena leads to an almost total cancellation of the harmful vibrations of the racket.
  • FIG. 5 represents another embodiment of such a counterweight this time consisting of two square plates 18 and 18 ′ joined by four colonettes 17 made of elastomeric material, coming to be placed inside the square formed by the four cords C, by exerting on them a push towards the outside.
  • the vibrations of the strings C are thus transmitted to the plates 18-18 ', which thus play, outside the strings C, the same role as the preceding flyweights 12 and 14, located inside.
  • the plates 18-18 ' can also be circular or of any other symmetrical shape.
  • FIG. 6 illustrates the fact that the membrane (s) or plates may be integral with the torus only on certain fractions of their periphery to take account of the pressure differences between the strings.
  • the pressure on the vertical strings being stronger than on the horizontal strings, it is possible to cut the membrane or the pads so that the attachment of the flyweight is preferably done on the vertical strings.
  • the metal ball 12 may consist of a drop of mercury trapped between the films 13a, 13b.
  • the advantage which one draws from it is to profit from a significant weight located punctually.
  • Incidentally it can be used to decorate or personalize the racket, by its color or shape, or by serving as a support for an initial.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Vibration Prevention Devices (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (8)

1. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung zur Dämpfung der durch die Verwendung dieses Tennisschlägers hervorgerufenen Vibrationen versehen ist, wobei diese Vorrichtung aus wenigstens einer Platte aus elastomerem Material besteht, die eine umfängliche Kehle aufweist und dazu bestimmt ist, in einem von vier benachbarten Saiten des besagten Tennisschlägers begrenzten Viereck angeordnet zu werden, dadurch gekennzeichnet, daß die Abmessungen dieser Platte derart sind, daß, wenn sie ohne Spiel in dieser Kehle einmal am Platz ist, die beiden parallelen Saiten eines jeden Saitenpaares, die das Viereck bilden, voneinander mit einem Abstand in der Größenordnung von 2-3 mm getrennt sind, und daß wenigstens ein Ansatzteil mit der erwähnten Platte durch eine ihm vollständig die Vibrationen der Saiten übertragende Membran verbunden ist.
2. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach dem Anspruch 1 versehen ist, dadurch gekennzeichnet, daß die Vorrichtung aus einem Torus eines elastomeren Materials besteht, wobei vier Saiten der Bespannung in einer umfänglichen Kehle von diesem zu liegen kommen und das erwähnte Ansatzteil mit dem Torus durch eine dieses im Zentrum des Torus haltende Membran verbunden ist.
3. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach den Ansprüchen 1 und 2 versehen ist, dadurch gekennzeichnet, daß das Ansatzteil eine im Zentrum des Torus durch zwei Häutchen aus elastomerem Material, die zusammen die Rolle der Membran erfüllen, eingeschlossene metallische Kugel ist.
4. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach den Ansprüchen 1 und 2 versehen ist, dadurch gekennzeichnet, daß das Ansatzteil ein einstückig mit der Membran sowie dem Torus entstandener Block aus elastomerem Material ist.
5. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach Anspruch 3 versehen ist, dadurch gekennzeichnet, daß die metallische Kugel ein Quecksilbertropfen ist.
6. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach Anspruch 1 versehen ist, dadurch gekennzeichnet, daß das Ansatzteil aus zwei über den Saiten angeordneten und durch Rundstifte aus elastomerem Material, die gleichzeitig einen Schub nach außen auf die vier angrenzenden Saiten ausüben, verbundenen Platten gebildet ist.
7. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach einem der Ansprüche 1 bis 6 versehen ist, dadurch gekennzeichnet, daß die Membran derart zugeschnitten ist, daß sie bevorzugt die Vibrationen von bestimmten Saiten überträgt.
8. Gitterbespannung eines Tennisschlägers, die mit einer Vorrichtung nach Anspruch 1 versehen ist, dadurch gekennzeichnet, daß das Ansatzteil durch eine Anordnung von Unwuchten, die symmetrisch auf dem besagten System verteilt sind, gebildet ist.
EP86440038A 1985-05-22 1986-05-22 Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern Expired - Lifetime EP0208639B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86440038T ATE59310T1 (de) 1985-05-22 1986-05-22 Einrichtung zum daempfen der schwingungen von tennisschlaegern.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8507830 1985-05-22
FR8507830A FR2582224B1 (fr) 1985-05-22 1985-05-22 Dispositif pour l'attenuation des vibrations sur une raquette de tennis
FR8511356 1985-07-23
FR8511356A FR2585257B1 (fr) 1985-07-23 1985-07-23 Dispositif pour la suppression des vibrations d'une raquette de tennis

Publications (2)

Publication Number Publication Date
EP0208639A1 EP0208639A1 (de) 1987-01-14
EP0208639B1 true EP0208639B1 (de) 1990-12-27

Family

ID=26224518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86440038A Expired - Lifetime EP0208639B1 (de) 1985-05-22 1986-05-22 Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern

Country Status (6)

Country Link
US (1) US4761007A (de)
EP (1) EP0208639B1 (de)
AU (1) AU588876B2 (de)
DE (1) DE3676575D1 (de)
ES (1) ES8706461A1 (de)
PT (1) PT82630B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD331436S (en) 1990-05-15 1992-12-01 Phagason Co. Vibration damper for a racket
USD368749S (en) 1995-01-30 1996-04-09 Wilson Sporting Goods Co. Vibration dampener for a game racquet

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34420E (en) * 1986-06-19 1993-10-26 Darling James P Sports racquet
EP0261994A3 (en) * 1986-09-24 1988-06-01 Bart A. Hillock Fluid vibration damper for racquet
US4927143A (en) * 1986-09-24 1990-05-22 Hillock Bart A Fluid vibration damper for racquet
FR2615113A1 (fr) * 1987-05-13 1988-11-18 Boschian Louis Perfectionnement aux attenuateurs de vibrations pour raquettes de tennis
FR2630019B1 (fr) * 1988-04-14 1991-04-19 Bianchi Jean Claude Dispositif anti-vibratoire pour raquette et tennis ou jeu de balle
US4911445A (en) * 1989-01-27 1990-03-27 Ferrari Importing Company Vibration dampening device for a sports racket having a strung striking surface
US5022651A (en) * 1989-05-24 1991-06-11 Barone Michael A Exercise and training tensioning device for sporting racquets
AT394139B (de) * 1990-03-02 1992-02-10 Aichlseder Hans Walter Zusatzvorrichtung fuer tennisspieler
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
AT394658B (de) * 1990-09-28 1992-05-25 Aichlseder Hans Walter Zubehoer fuer tennisschlaeger
US5137769A (en) * 1990-12-11 1992-08-11 Supracor Systems, Inc. Vibration dampening means for strung or spoked equipment
US5096194A (en) * 1991-01-31 1992-03-17 Rubbermade Accessories Sdn. Bhd. Device for preventing tennis elbow
US5106086A (en) * 1991-10-23 1992-04-21 Acosta Richard J Vibration dampener for rackets
US5149090A (en) * 1991-12-30 1992-09-22 Chen Sam H Vibration damping device for sports racquet
DE19516501A1 (de) * 1995-04-15 1996-10-17 Siegfried Kuebler Schläger für Tennis o. dgl. Spiele sowie Einsatz dafür
US5651545A (en) * 1995-06-07 1997-07-29 Roush Anatrol, Inc. Vibration damping device for stringed racquets
JPH10211303A (ja) * 1997-01-31 1998-08-11 Kimonii:Kk ラケットにおけるストリング、フレームの振動止め装置
US5776020A (en) * 1997-05-19 1998-07-07 Barone; Michael A. Tensioning device for sporting racquets
US6755756B2 (en) * 2002-08-05 2004-06-29 Hung-Fu Sung Device for deadening noise and absorbing shock of tennis racket strings
US7014579B1 (en) * 2004-10-12 2006-03-21 Hung-Fu Sung Shock absorbing device for racket
CN100548415C (zh) * 2006-12-01 2009-10-14 宋宏富 网球拍的声响避震器
US8066592B2 (en) 2007-04-20 2011-11-29 Nike, Inc. Dampening system for stringed-racquet
US7530910B1 (en) * 2007-06-14 2009-05-12 Gene Niksich Vibration dampening device for a strung sports racquet
US7749110B2 (en) * 2007-07-05 2010-07-06 Great Southern Corporation Racquet sport training system
WO2009092173A1 (de) * 2008-01-21 2009-07-30 Andreas Saladin Dämpfer für rackets mit elastisch gelagerter masse zur vibrationsdämpfung
US20130310203A1 (en) * 2012-05-15 2013-11-21 HK Innovations, LLC Device and method for improved tennis racket damping and weight adjustment
ES2577577B1 (es) * 2015-01-15 2017-04-24 Ángel David CALAMARDO CARRIÓN Antivibrador externo para pala de pádel
USD884808S1 (en) 2018-12-27 2020-05-19 David Pacheco Vibration dampener
CZ309274B6 (cs) * 2021-02-18 2022-07-06 Petr Petrášek Závaží pro sportovní raketu a způsob úpravy švihové hmotnosti rakety a/nebo vyvážení rakety
US12076627B2 (en) * 2021-09-01 2024-09-03 Rudolf Harrer Racket dampener swing sensor apparatus
IT202200021291A1 (it) * 2022-10-17 2024-04-17 Additive Appliances S R L Dispositivo smorzatore di vibrazioni per una racchetta sportiva con telaio e piatto corde
US12605605B1 (en) * 2024-02-05 2026-04-21 David Pacheco Tennis racket dampener device with variable dampening
JP7540679B1 (ja) 2024-05-24 2024-08-27 Ｄｒｕｃｋｅｎ株式会社 ストリング振動止め用ホルダ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1398833A (fr) * 1964-03-31 1965-05-14 Amortisseur de vibrations pour raquettes de tennis ou jeux analogues
DE2501659A1 (de) * 1975-01-17 1976-07-22 Gebhard Dischinger Tennisschlaegerbespannung mit fuehrungskreuzstuecken
US4057250A (en) 1975-09-05 1977-11-08 Kuban William G Tennis racket construction
DE2642694A1 (de) * 1976-09-20 1978-03-23 Benno Prof Dr Krieg Bespannung fuer ballschlaeger
AT352590B (de) 1977-03-31 1979-09-25 Fischer Gmbh Einrichtung zur tilgung von schwingungen bei ballschlaegern
DE3123690A1 (de) * 1981-06-15 1983-03-17 Michael 8035 Gauting Reeb Zusatzgewicht und einrichtung zur schwingungsdaempfung fuer tennisschlaeger und aehnliche sportschlaeger
US4589662A (en) * 1983-11-16 1986-05-20 Robaldo Aldo Michele Plug for damping vibrations of tennis racket cords
US4609194A (en) * 1984-05-30 1986-09-02 Krent Edward D Vibration dampening device for sporting rackets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD331436S (en) 1990-05-15 1992-12-01 Phagason Co. Vibration damper for a racket
USD368749S (en) 1995-01-30 1996-04-09 Wilson Sporting Goods Co. Vibration dampener for a game racquet

Also Published As

Publication number Publication date
US4761007A (en) 1988-08-02
AU5770086A (en) 1987-01-15
ES8706461A1 (es) 1987-03-16
DE3676575D1 (de) 1991-02-07
ES555688A0 (es) 1987-03-16
AU588876B2 (en) 1989-09-28
EP0208639A1 (de) 1987-01-14
PT82630B (pt) 1992-07-31
PT82630A (fr) 1986-06-01

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