EP0283485B1 - Schwingungsdämpfungsgerät, insbesondere für tennis- oder squashschläger - Google Patents

Schwingungsdämpfungsgerät, insbesondere für tennis- oder squashschläger Download PDF

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Publication number
EP0283485B1
EP0283485B1 EP87905763A EP87905763A EP0283485B1 EP 0283485 B1 EP0283485 B1 EP 0283485B1 EP 87905763 A EP87905763 A EP 87905763A EP 87905763 A EP87905763 A EP 87905763A EP 0283485 B1 EP0283485 B1 EP 0283485B1
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EP
European Patent Office
Prior art keywords
strings
under
fact
terms
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.)
Expired - Lifetime
Application number
EP87905763A
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English (en)
French (fr)
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EP0283485A1 (de
Inventor
Jean-Claude Bianchi
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Individual
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Individual
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Publication date
Priority claimed from FR8613958A external-priority patent/FR2604365B1/fr
Priority claimed from FR8705639A external-priority patent/FR2613946B1/fr
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Publication of EP0283485A1 publication Critical patent/EP0283485A1/de
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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 a device which dampens the vibrations of the strings to which tennis rackets are subjected following an impact from the ball, and causing joint disorders in the elbow of the player.
  • the devices existing to date have one or often several of the following imperfections: ineffectiveness due to their arrangement on the frame or the string of the racket; their difficult implementation; their uncertain locking separating them from the rope during violent and repeated impacts with the ball; their complexity of implementation; their prominence on the line suitable for deflecting the balls from the desired trajectory.
  • French Patent No. 2,585,256 dated 30.01.87 is defined as consisting of a flat, wide and rigid polypropylene having no means allowing its positive lateral immobilization during the vibratory movement of the sieve.
  • This principle has also already been claimed in a US patent. N ° 4.575.083 of 3/7/84 whose easy installation can only be done when stringing the racket and whose constituent material must be able to deform in a plastic way (therefore inelastic).
  • This device is arranged under the intersection of the perpendicular cords.
  • French Patent No. 2,385,417 of October 27, 78 is a damping device of a length specified in its figure 2 equal to the pitch of two consecutive strings of a mesh, at the ends of which is provided a passage allowing it to be accommodated on two strings during the stringing of the racket in an irremovable manner, and to be really effective several of these devices must be mounted on the string or be much more massive and prominent in the manner of French patent N ° 1.398.833 of 31/3 / 64 or another similar French patent N ° 2,587,257 whose membrane for holding the flyweight is relaxed under the pressure of the strings, preventing it from damping any vibration mode. These last two types of device have a tendency to get out of the racket when the vibrations are violent.
  • the present device makes it possible to remedy these drawbacks by acting coherently on all the modes of vibration of the sieve of the racket and shortening the neuro-muscular perception time of the player's hand.
  • the device consists of a flexible elastomer element interweaving in the meshes of the rope following a path thereto without modifying either the geometry or the tension. Its qualities of flexibility and elasticity also allow it to be put in place again, which is carried out by entwining a turn on the strings of the sieve.
  • the device can tie the strings by skipping several stitches or by wrapping around a single strand in order to be able to modulate its potential for absorption in vibrations.
  • the device is provided at its ends with prominences which may be spherical blocking the knot on the rope or intended to be stowed in recesses arranged on the periphery of the frame of the racket.
  • the device is provided in the middle with at least one bulge intended to stiffen and / or increase its local linear mass, optimizing its damping capacities while retracting under an impact accidental bullet.
  • the device consists of an elastomeric material based on silicone or polyurethane or natural rubber offering good tear resistance and with viscoelastic property providing it with good structural damping.
  • the device may be hollow and / or of substantially oval section.
  • a variant with a composite structure consists in juxtaposing at least two materials of different density. For example, the densest is placed in the middle of the element, the section of which can then be continuous and see its linear density increased, the most flexible and least dense material arranged on either side facilitating the execution of the node. The bulge or the central material may extend beyond one of the mesh of the sieve.
  • the section of the longifile element of small section can be composed of at least two strands arranged side by side covering all or part of the length between the protrusions of ends.
  • At least one prominence is maintained outside or inside the element (1) by at least one element of small section.
  • the multiplicity of contacts of the device with the strings stresses in alternating bending, during vibrations, the elongated element which, thanks to its elastic properties, is always kept in contact with the strings.
  • its viscous properties are responsible for stimulating the movement of the strings by converting it into heat which is dissipated by convection with the surrounding air.

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

Claims (10)

1. Antivibrations-Vorrichtung für Tennisschläger, aus Elastomer, mit länglicher Form, bestehend im Prinzip aus einem Element mit geringem Querschnitt (1), das in die Maschen eines Tennisschlägers geflochten wird und das an seinen Enden mit Verdickungen versehen ist, gekennzeichnet dadurch, daß es aus einer Baugruppe besteht mit
einem Element mit geringem Querschnitt (1), die sein Zusammenhalten mit dem Tennisschläger während seiner Schlagbewegungen durch die Umschlingungen der eingeflochtenen Stränge sicherstellt,
mit Verdickungen an den Enden des Elementes (1), die das Ankoppeln durch einen Knoten sicherstellen, dessen Ausführung um den Kreuzungspunkt zwischen einer Längs- und einer Quersehne des Netzes vorgesehen ist,
mit mindestens einer Querschnittsverdickung (3) in der Mitte de Vorrichtung, um diese zu versteifen und örtlich seine längenbezogene Masse zu erhöhen.
2. Vorrichtung gemäß Anspruch 1, gekennzeichnet dadurch, daß das fadenförmige Element (1) überall einen etwa ovalen Querschnitt besitzt.
3. Vorrichtung gemäß Anspruch 1, gekennzeichnet dadurch, daß der Querschnitt des Elements (1) und dessen Elastizität es ermöglicht, ohne Änderung ihrer Form eine Sehne zu umschlingen, und so den Zusammenhalt mit jeder der umschlungenen Sehnen während der Schwingungen des Netzes zu gewährleisten.
4. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß ihr mittlerer Bereich eine höhere Dichte besitzt, um das Absorptionspotential der Zone mit maximalem Ausschlag zu erhöhen.
5. Vorrichtung gemäß Anspruch 1, gekennzeichnet dadurch, daß die elastischen Eigenschaften des Elementes (1) das Umschlingen sowohl in Längs- als auch in Querrichtung ermöglichen, und daß der Widerstand seines Querschnittes so schwach ist, daß mindestens zwei Umschlingungen der gleichen Sehne innerhalb mindestens einer quadratischen Netzmasche möglich sind.
6. Vorrichtung gemäß Anspruch 1, gekennzeichnet dadurch, daß das Element (1) aus mehreren fadenförmigen Strängen besteht, die nebeneinander angeordnet sind.
7. Vorrichtung auf einem Tennisschläger gemäß Anspruch 1, gekennzeichnet dadurch, daß sich die Vedickungen (2) in Vertiefungen (4) befestigen lassen, die sich auf dem Umfang des Rahmens des Tennisschlägers (5) befinden.
8. Vorrichtung auf einem Tennisschläger gemäß Anspruch 1, gbekennzeichnet dadurch, daß die Verdickungen (2) an den Enden der Vorrichtung (1) das um den Kreuzungspunkt zweier Sehnen vorgesehene Ankoppeln durch einen Knoten sicherstellen, der wie folgt auszuführen ist:
Einfädeln der Vorrichtung gegen und in die Richtung der ersten Sehne (7),
Durchziehen unter der zweiten Sehne (8) der gewählten Kreuzungsstelle, von oben kommend und in Richtung der Winkelhalbierenden (8) der beiden Sehnen,
Durchziehen unter der Kreuzung um die Verdirkkung (2) zwischen der Sehne (7) und dem bereits eingefädelten Teil der Vorrichtung herauszuziehen.
9. Vorrichtung auf einem Tennisschläger gemäß Anspruch 1, gekennzeichnet dadurch, daß die Verdickung (3) aus einer Kugel besteht, die sich im Bereich der Symmetrieachse der Bespannung befindet, d.h. dem Ort mit maximaler Amplitude für alle ungeraden Schwingungsarten des Netzes.
10. Vorrichtung auf einem Tennisschläger gemäß Anspruch 1, gekennzeichnet dadurch, daß die Vedickung (3) sich soweit erstreckt, daß sie mit mindestens einer Sehne der Netzmasche in Kontakt ist.
EP87905763A 1986-09-30 1987-09-09 Schwingungsdämpfungsgerät, insbesondere für tennis- oder squashschläger Expired - Lifetime EP0283485B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8613958 1986-09-30
FR8613958A FR2604365B1 (fr) 1986-09-30 1986-09-30 Dispositif antivibratile pour raquettes de tennis ou de squash
FR8705639A FR2613946B1 (fr) 1987-04-16 1987-04-16 Dispositif antivibratoire pour raquette de tennis
FR8705639 1987-04-16

Publications (2)

Publication Number Publication Date
EP0283485A1 EP0283485A1 (de) 1988-09-28
EP0283485B1 true EP0283485B1 (de) 1990-12-12

Family

ID=26225512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905763A Expired - Lifetime EP0283485B1 (de) 1986-09-30 1987-09-09 Schwingungsdämpfungsgerät, insbesondere für tennis- oder squashschläger

Country Status (4)

Country Link
US (1) US4962928A (de)
EP (1) EP0283485B1 (de)
AU (1) AU7910587A (de)
WO (1) WO1988002271A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911445A (en) * 1989-01-27 1990-03-27 Ferrari Importing Company Vibration dampening device for a sports racket having a strung striking surface
US5158286A (en) * 1989-03-08 1992-10-27 Soong Tsai C Damping device for sports rackets
US5169146A (en) * 1989-03-08 1992-12-08 Soong Tsai C Damping device for sports rackets
US5211397A (en) * 1990-06-11 1993-05-18 Prince Manufacturing, Inc. String vibration dampener for a tennis racquet
US5096194A (en) * 1991-01-31 1992-03-17 Rubbermade Accessories Sdn. Bhd. Device for preventing tennis elbow
US5149090A (en) * 1991-12-30 1992-09-22 Chen Sam H Vibration damping device for sports racquet
US6364791B1 (en) * 1999-10-04 2002-04-02 Benetton Sportsystem Usa, Inc. Double loop string vibration damper for sports racquets
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
US8066592B2 (en) * 2007-04-20 2011-11-29 Nike, Inc. Dampening system for stringed-racquet
US20150182828A1 (en) * 2014-01-01 2015-07-02 John T. McElveen, JR. Shock-attenuated sports racquet with shock damping sleeve
US20170274257A1 (en) * 2016-03-24 2017-09-28 JOHN Han CHAE Vibration dampener
CN112973052A (zh) * 2021-04-13 2021-06-18 盐城工学院 一种网球训练用网球收集装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US763059A (en) * 1903-10-26 1904-06-21 John E Hindon Hyde Tennis-racket.
AT352590B (de) * 1977-03-31 1979-09-25 Fischer Gmbh Einrichtung zur tilgung von schwingungen bei ballschlaegern
US4299385A (en) * 1978-07-21 1981-11-10 Boden Robert O Racquet
DE3123690A1 (de) * 1981-06-15 1983-03-17 Michael 8035 Gauting Reeb Zusatzgewicht und einrichtung zur schwingungsdaempfung fuer tennisschlaeger und aehnliche sportschlaeger
DE3324142A1 (de) * 1983-07-05 1985-01-24 Puma-Sportschuhfabriken Rudolf Dassler Kg, 8522 Herzogenaurach Ballschlaeger
DE3447608A1 (de) * 1984-12-28 1986-07-03 F. Kleinekathöfer KG, 8207 Endorf Tennissaite
FR2585256B1 (fr) * 1985-07-29 1988-08-19 Leyssene Bruno Systeme antivibration pour raquette de tennis
US4732383A (en) * 1986-04-21 1988-03-22 Ferrari Importing Company Shock and vibration absorber for racquets and method for its use

Also Published As

Publication number Publication date
AU7910587A (en) 1988-04-21
EP0283485A1 (de) 1988-09-28
WO1988002271A1 (fr) 1988-04-07
US4962928A (en) 1990-10-16

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