EP0642811A1 - Vibrationsdämpfer für Tennisschläger - Google Patents

Vibrationsdämpfer für Tennisschläger Download PDF

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Publication number
EP0642811A1
EP0642811A1 EP94402008A EP94402008A EP0642811A1 EP 0642811 A1 EP0642811 A1 EP 0642811A1 EP 94402008 A EP94402008 A EP 94402008A EP 94402008 A EP94402008 A EP 94402008A EP 0642811 A1 EP0642811 A1 EP 0642811A1
Authority
EP
European Patent Office
Prior art keywords
uprights
grooves
central
vibration damper
racket
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.)
Withdrawn
Application number
EP94402008A
Other languages
English (en)
French (fr)
Inventor
Bart A. Hillock
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
Application filed by Individual filed Critical Individual
Publication of EP0642811A1 publication Critical patent/EP0642811A1/de
Withdrawn legal-status Critical Current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 vibration damper for tennis rackets.
  • EP-A-0 465 848 describes an elastic band which is inserted between the strings of a racket, terminated at each of its ends by a toric piece of mass higher than that of the band.
  • the O-rings are held on the rope by slots.
  • FR-A-2 554 723 and FR-A-2 666 237 relates to a vibration damper for tennis racket strings, consisting of a pad having lateral slots for introducing strings.
  • FR-A- 2 666 237 relates to a vibration damper consisting of a main elastomer body mounted between two cords by means of slots provided with tongues.
  • the object of the present invention is to provide a shock absorber with three-point attachment intended to be mounted directly on the rope which is more effective than the preceding shock absorbers and is held in place by its three hooks whatever the violence of the shocks to which it is subjected. racket.
  • the vibration damper intended to be mounted on the string of a tennis racket is characterized in that it consists of a symmetrical oblong body whose length is slightly greater than the sum of the distances of the six central uprights, having four central grooves and two lateral grooves intended to receive the six uprights, respectively above and below the oblong body, the grooves being formed by four flanges respectively long and short joined by studs perpendicular to the surface of the flaccid.
  • the central grooves have a "T" section which can receive, in the angles of the horizontal branch of the T, two adjacent central uprights.
  • the symmetry of the shock absorber is reflected in the fact that the rope is trapped in the slots on either side of the axis of symmetry and is thus firmly held.
  • the damper generally designated by the reference 10 is of substantially oval shape. It is obtained by molding a synthetic viscoelastic elastomer material such as polyurethane. In the example shown, it is mounted at the bottom of the racket on six central uprights M below the beam closest to the handle.
  • the damper 10 is formed by four flanges 1,2,3,4 of oblong shape, namely, two flanges 1 and 3 long and two flanges 2 and 4 short.
  • Each face of the shock absorber includes a long flange and a short flange.
  • the flanges are joined by studs 5 which determine peripheral 6 and central grooves 7.
  • the two outermost uprights are inserted in the grooves 6 while the most central uprights are inserted in the grooves 7, at the rate of two uprights per groove. They come to bear, with a certain clearance against the studs 5 which ensures, from the point of view of vibrations, a certain joining of the uprights which thus can no longer vibrate at their natural frequency.
  • FIG. 3 represents the shock absorber seen from above and, preferably, the flanges 1 and 2 have an inner edge 8, 9 rounded so that the uprights introduced into the grooves 6 and 7 are covered over part of their length which prevents them from coming out of the grooves when the cords are deformed following an impact.
  • Figure 4 is an end view of the damper according to the invention We see that a long flange 1 is opposite a short flange 4 as on the other side the long flange 3 is arranged opposite the short flange 2.
  • the shock absorber is thus perfectly locked on the uprights and, by its elastic nature, follows the deformations of the strings and quickly brings them to rest.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Vibration Dampers (AREA)
  • Vibration Prevention Devices (AREA)
EP94402008A 1993-09-10 1994-09-09 Vibrationsdämpfer für Tennisschläger Withdrawn EP0642811A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9310767A FR2709671B1 (fr) 1993-09-10 1993-09-10 Amortisseur de vibrations pour raquette de tennis.
FR9310767 1993-09-10

Publications (1)

Publication Number Publication Date
EP0642811A1 true EP0642811A1 (de) 1995-03-15

Family

ID=9450723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94402008A Withdrawn EP0642811A1 (de) 1993-09-10 1994-09-09 Vibrationsdämpfer für Tennisschläger

Country Status (2)

Country Link
EP (1) EP0642811A1 (de)
FR (1) FR2709671B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734732A1 (fr) * 1995-06-02 1996-12-06 Bianchi Jean Claude Dispositif anti-vibration pour raquette de jeu de balle.
FR2817482A1 (fr) * 2000-12-06 2002-06-07 Jean Claude Bianchi Anti-vibration ajustable pour toute raquette de jeu de balle
WO2004020048A1 (de) 2002-08-09 2004-03-11 Head Technology Gmbh Dämfungsvorrichtung für ballspielschläger
DE102006004850B3 (de) * 2006-02-02 2007-10-04 Head Technology Gmbh Dämpfungsvorrichtung für Ballspielschläger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554723A1 (fr) * 1983-11-16 1985-05-17 Robaldo Aldo Tampon d'amortissement de vibrations de cordes de raquette de tennis
EP0465848A1 (de) * 1990-06-11 1992-01-15 Prince Sports Group, Inc. Vibrationsdämpfer für die Saiten eines Tennisschlägers
FR2666237A1 (fr) * 1990-08-30 1992-03-06 Bianchi Jean Claude Dispositif antivibratoire pour raquette de tennis.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554723A1 (fr) * 1983-11-16 1985-05-17 Robaldo Aldo Tampon d'amortissement de vibrations de cordes de raquette de tennis
EP0465848A1 (de) * 1990-06-11 1992-01-15 Prince Sports Group, Inc. Vibrationsdämpfer für die Saiten eines Tennisschlägers
FR2666237A1 (fr) * 1990-08-30 1992-03-06 Bianchi Jean Claude Dispositif antivibratoire pour raquette de tennis.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"elastomer takes the strain for tennis players", ENGINEERING, vol. 231, no. 11, December 1991 (1991-12-01), LONDON, GB, pages 11 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734732A1 (fr) * 1995-06-02 1996-12-06 Bianchi Jean Claude Dispositif anti-vibration pour raquette de jeu de balle.
FR2817482A1 (fr) * 2000-12-06 2002-06-07 Jean Claude Bianchi Anti-vibration ajustable pour toute raquette de jeu de balle
WO2004020048A1 (de) 2002-08-09 2004-03-11 Head Technology Gmbh Dämfungsvorrichtung für ballspielschläger
DE10236633B4 (de) * 2002-08-09 2013-02-28 Head Sport Ag Dämpfungsvorrichtung für Ballspielschläger
DE102006004850B3 (de) * 2006-02-02 2007-10-04 Head Technology Gmbh Dämpfungsvorrichtung für Ballspielschläger
US7572196B2 (en) 2006-02-02 2009-08-11 Head Technology Gmbh Dampening device for a racket

Also Published As

Publication number Publication date
FR2709671A1 (fr) 1995-03-17
FR2709671B1 (fr) 1995-11-24

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