EP0208639A1 - Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern - Google Patents

Einrichtung zum Dämpfen der Schwingungen von Tennisschlägern Download PDF

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Publication number
EP0208639A1
EP0208639A1 EP86440038A EP86440038A EP0208639A1 EP 0208639 A1 EP0208639 A1 EP 0208639A1 EP 86440038 A EP86440038 A EP 86440038A EP 86440038 A EP86440038 A EP 86440038A EP 0208639 A1 EP0208639 A1 EP 0208639A1
Authority
EP
European Patent Office
Prior art keywords
strings
torus
elastomeric material
plate
counterweight
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
Application number
EP86440038A
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English (en)
French (fr)
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EP0208639B1 (de
Inventor
Louis Boschian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
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 a new device intended to attenuate the vibrations of a tennis ball when striking the ball. 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".
  • This means consists of a removable device, which, once in place, exerts a pressure and spreading effect simultaneously on four contiguous cords, namely two transverse cords and two longitudinal cords defining the square in which the device is housed.
  • the damping device is in the form of a disc of elastomeric material, the thickness of which is of the order of ten millimeters and which has on its periphery a groove in which the four cords are housed concerned, the diameter of the disc at the bottom of this groove being approximately 2mm greater than the spacing between two parallel strings, so that once in place in a square, the device determines a spacing of the two parallel strings of each couple, and consequently an additional tension effect distributed equidirectionally on the four sides of the square.
  • this device can be completed, which can be considered as “passive” by an “active” element, that is to say capable of itself taking a movement.
  • vibratory which, coming to be composed with that of the racket, manages to cancel it.
  • this "active" element is a counterweight centered with respect to the device, and connected to it by flexible elements which completely transmit the vibrations to it.
  • 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 be consisting 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 3 a , 3 b , 4 a and 4 b . As seen in Figure 2, it has on its periphery a groove in which are housed said strings of said square, which keeps the device in place 5.
  • the diameter D of the groove is approximately 2 to 3 mm greater than the distance d between the two corresponding cords 4 a -4 b ; if the disc is exactly circular, the diameter D is also higher as the distance d 'between the ropes 3 a -3 b. 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 3 a -3 b and 4 a -4 b .
  • this action has the consequence of damping and practically total attenuation of the vibrations which normally arise in the racket at each impact on the ball.
  • the advantage of the device according to the invention is that it is removable, instead of being glued or molded on site like the devices. of the same kind already proposed, and in particular those described in the aforementioned French patent. 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 consists still a torus 10, also made of elastomeric material, and in a groove 11 of which are housed the four strings C forming one of the meshes of the sieve of the racket, as described with reference to FIGS. 1 and 2, but comprising, moreover, according to the invention, a steel ball 12 held captive between two thin membranes 13 a -13 b also elastomeric material and secured to the core 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 shows 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 (or) membrane (s) or plates may be integral with the torus only on certain fractions of their periphery, to take account of pressure differences between the strings.
  • the pressure on the vertical strings being greater 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 3 can consist of a drop of mercury trapped between the films 4 a -4 b .
  • 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.
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
FR8507830A FR2582224B1 (fr) 1985-05-22 1985-05-22 Dispositif pour l'attenuation des vibrations sur une raquette de tennis
FR8507830 1985-05-22
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 true EP0208639A1 (de) 1987-01-14
EP0208639B1 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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261994A2 (de) * 1986-09-24 1988-03-30 Bart A. Hillock Mit Flüssigkeit gefüllter Vibrationsdämpfer für Sportschläger
FR2630019A1 (fr) * 1988-04-14 1989-10-20 Bianchi Jean Claude Dispositif anti-vibratoire pour raquette et tennis ou jeu de balle
US5022651A (en) * 1989-05-24 1991-06-11 Barone Michael A Exercise and training tensioning device for sporting racquets
US5149090A (en) * 1991-12-30 1992-09-22 Chen Sam H Vibration damping device for sports racquet
EP0747097A1 (de) * 1995-06-07 1996-12-11 Roush Anatrol Inc. Schwingungsdämpfungseinrichtung für besaitete Schläger
FR2758993A1 (fr) * 1997-01-31 1998-08-07 Kimony S Inc Dispositif d'amortissement des vibrations pour cordes ou cadre d'une raquette
US5792011A (en) * 1995-04-15 1998-08-11 Kuebler; Siegfried Vibration dampner for sports racket
WO2009092173A1 (de) * 2008-01-21 2009-07-30 Andreas Saladin Dämpfer für rackets mit elastisch gelagerter masse zur vibrationsdämpfung
WO2024084355A1 (en) * 2022-10-17 2024-04-25 Additive Appliances S.R.L. Vibration damping device for a sports racket with frame and string plate

Families Citing this family (22)

* 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
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
US4911445A (en) * 1989-01-27 1990-03-27 Ferrari Importing Company Vibration dampening device for a sports racket having a strung striking surface
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
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
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
WO2013173387A1 (en) * 2012-05-15 2013-11-21 Hk Innovations 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
US20230069340A1 (en) * 2021-09-01 2023-03-02 Rudolf Harrer Racket Dampener Swing Sensor Apparatus

Citations (6)

* 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
FR2385417A1 (fr) 1977-03-31 1978-10-27 Fischer Gmbh Dispositif de suppression des vibrations de raquettes pour jeux de balle
FR2554723A1 (fr) * 1983-11-16 1985-05-17 Robaldo Aldo Tampon d'amortissement de vibrations de cordes de raquette de tennis

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123690A1 (de) * 1981-06-15 1983-03-17 Michael 8035 Gauting Reeb Zusatzgewicht und einrichtung zur schwingungsdaempfung fuer tennisschlaeger und aehnliche sportschlaeger
US4609194A (en) * 1984-05-30 1986-09-02 Krent Edward D Vibration dampening device for sporting rackets

Patent Citations (6)

* 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
FR2385417A1 (fr) 1977-03-31 1978-10-27 Fischer Gmbh Dispositif de suppression des vibrations de raquettes pour jeux de balle
FR2554723A1 (fr) * 1983-11-16 1985-05-17 Robaldo Aldo Tampon d'amortissement de vibrations de cordes de raquette de tennis

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261994A2 (de) * 1986-09-24 1988-03-30 Bart A. Hillock Mit Flüssigkeit gefüllter Vibrationsdämpfer für Sportschläger
EP0261994A3 (en) * 1986-09-24 1988-06-01 Bart A. Hillock Fluid vibration damper for racquet
FR2630019A1 (fr) * 1988-04-14 1989-10-20 Bianchi Jean Claude Dispositif anti-vibratoire pour raquette et tennis ou jeu de balle
US5022651A (en) * 1989-05-24 1991-06-11 Barone Michael A Exercise and training tensioning device for sporting racquets
US5149090A (en) * 1991-12-30 1992-09-22 Chen Sam H Vibration damping device for sports racquet
US5792011A (en) * 1995-04-15 1998-08-11 Kuebler; Siegfried Vibration dampner for sports racket
EP0747097A1 (de) * 1995-06-07 1996-12-11 Roush Anatrol Inc. Schwingungsdämpfungseinrichtung für besaitete Schläger
FR2758993A1 (fr) * 1997-01-31 1998-08-07 Kimony S Inc Dispositif d'amortissement des vibrations pour cordes ou cadre d'une raquette
WO2009092173A1 (de) * 2008-01-21 2009-07-30 Andreas Saladin Dämpfer für rackets mit elastisch gelagerter masse zur vibrationsdämpfung
WO2024084355A1 (en) * 2022-10-17 2024-04-25 Additive Appliances S.R.L. Vibration damping device for a sports racket with frame and string plate

Also Published As

Publication number Publication date
ES555688A0 (es) 1987-03-16
DE3676575D1 (de) 1991-02-07
PT82630A (fr) 1986-06-01
US4761007A (en) 1988-08-02
PT82630B (pt) 1992-07-31
AU5770086A (en) 1987-01-15
EP0208639B1 (de) 1990-12-27
ES8706461A1 (es) 1987-03-16
AU588876B2 (en) 1989-09-28

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