EP0501895B1 - Schläger mit länglicher Asymmetrie - Google Patents

Schläger mit länglicher Asymmetrie Download PDF

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Publication number
EP0501895B1
EP0501895B1 EP92420039A EP92420039A EP0501895B1 EP 0501895 B1 EP0501895 B1 EP 0501895B1 EP 92420039 A EP92420039 A EP 92420039A EP 92420039 A EP92420039 A EP 92420039A EP 0501895 B1 EP0501895 B1 EP 0501895B1
Authority
EP
European Patent Office
Prior art keywords
racket
demi
different
parts
racket according
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
EP92420039A
Other languages
English (en)
French (fr)
Other versions
EP0501895A1 (de
Inventor
Gilles Du Gardin
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.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
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 Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP0501895A1 publication Critical patent/EP0501895A1/de
Application granted granted Critical
Publication of EP0501895B1 publication Critical patent/EP0501895B1/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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B2049/0211—Frames with variable thickness of the head in a direction perpendicular to the string plane
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B2049/0217—Frames with variable thickness of the head in the string plane
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/01—Special aerodynamic features, e.g. airfoil shapes, wings or air passages
    • 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
    • A63B60/006—Surfaces specially adapted for reducing air resistance
    • 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
    • A63B60/02—Ballast means for adjusting the centre of mass

Definitions

  • the present invention relates to a ball game racket or the like, such as a tennis racket, squash racket, badminton racket, etc.
  • such a racket consists of a handle, aligned in the longitudinal axis of a flat basket.
  • This basket is composed of a frame carrying a sieve formed by the cord, intended for striking the ball.
  • the basket is connected to the handle either directly or via two branches in the shape of a "V".
  • the part of the frame connecting the end of the two branches of the "V" is called "bridge”.
  • a tennis racket is used, among other things, to make two main strokes: the "forehand” and the "backhand".
  • the overall position of the racket sieve plane at the time of impact with the ball is similar.
  • the plane of the sieve is then practically perpendicular to the ground, as well as to the direction provided for the return of the ball, the head of the racket being slightly raised relative to the handle.
  • One of the objects of the invention is to modify, without shifting the center of gravity of the racket with respect to its median longitudinal axis, or more precisely with respect to the median longitudinal plane containing this axis and orthogonal to the plane of the racket, of this racket while correcting, by the structure of said racket, the discomfort caused by offset of impacts.
  • Another object of the invention is to improve the stability of the racket, and therefore the accuracy of the shots, in particular on "worked”, “lifted” or “caught” shots.
  • These strokes unlike the "flat” strokes, are strongly offset on the racket sieve, and it is therefore important to design a racket which can compensate, by its structure, for asymmetrical use.
  • the invention relates for this purpose to a racket for a ball game, or the like as set out in claim 1, that is to say generally comprising a handle aligned in the longitudinal axis of a basket. plane which comprises a frame carrying a sieve formed by the cord and intended for striking the ball, a longitudinal plane, which is orthogonal to the surface of this sieve and which comprises the longitudinal axis of the handle as well as the center of gravity of the racket, dividing the frame into two half-parts which, while giving the racket a practically symmetrical external appearance, actually have different physical characteristics.
  • physical characteristics is meant here both mechanical characteristics and dynamic and / or aerodynamic characteristics.
  • FIG. 1 it is a tennis racket with a completely conventional external appearance, and resembling at first glance most of the rackets currently sold by the Applicant.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
  • Toys (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Claims (12)

  1. Schläger für ein Ballspiel oder änliches, mit einem Schaft (2), der in der Längsachse eines ebenen Flechtwerks ausgerichtet ist, das einen Rahmen (6) umfaßt, der eine durch die Saiten gebildete Bespannung (8) hat, die zum Schlagen des Balles bestimmt ist, und mit einer Längsebene (1), die senkrecht zu der Fläche der Bespannung ist und die Längsachse des Schaftes sowie den Schwerpunkt des Schlägers enthält und den Rahmen in zwei Halbteile (6d, 6g) aufteilt, dadurch gekennzeichnet, daß zum Erzielen einer Asymmetrie des Schlägerverhaltens ohne Verschieben des Schlägerschwerpunktes bezüglich der Längsebene (1) die Symmetrielängsebene (1) den Schläger in zwei Rechts-Links-Halbteile (6d, 6g) aufteilt, die, obwohl sie dem Schläger ein praktisch symmetrisches äußeres Aussehen verleihen, in Wirklichkeit unterschiedliche physikalische (d.h. mechanische und/oder dynamische und/oder aerodynamische) Eigenschaften besitzen.
  2. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Halbteile unterschiedliche Steifigkeitseigenschaften besitzen.
  3. Schläger nach Anspruch 2, dadurch gekennzeichnet, daß der Steifigkeitsunterschied durch unterschiedliche Faserverteilungen oder Faserorientierungen erzielt wird.
  4. Schläger nach Anspruch 2, dadurch gekennzeichnet, daß der Steifigkeitsunterschied durch Verwendung identischer Materialien, jedoch in unterschiedlichen Mengen, erzielt wird.
  5. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Halbteile unterschiedliche Dämpfungseigenschaften besitzen, die ohne Änderung der äußeren Form des Schlägers erzielt werden.
  6. Schläger nach Anspruch 5, dadurch gekennzeichnet, daß die unterschiedlichen Dämpfungseigenschaften durch Hinzufügen innerer Dämpfungselemente (9, 10, 11) im Inneren der einen (6g) und/oder der anderen (6d) der beiden Halbteile des Rahmens (6) erzielt werden.
  7. Schläger nach Anspruch 5, dadurch gekennzeichnet, daß die unterschiedlichen Dämpfungseigenschaften durch Verwenden wesentlicher Bestandteile jeder der Halbteile (6g, 6d) mit unterschiedlichen Dämpfungseigenschaften erzielt werden.
  8. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die Rechts-Links-Asymmetrie durch unterschiedliche Schnittformen des Rahmens für symmetrische Punkte bezuglich der Symmetrielängsebene (1) erzeugt wird.
  9. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die Rechts-Links-Asymmetrie durch unterschiedliche Aerodynamikkoeffizienten erzeugt wird.
  10. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Halbseiten so eingerichtet (12) sind, daß sie dem Wind eine unterschiedliche Angriffsfläche bieten.
  11. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß die Rechts-Links-Asymmetrie durch unterschiedliche Masseverteilungen erzeugt wird, wobei jedoch der Schwerpunkt des Schlägers in der mittleren Längsebene (1) beibehalten wird.
  12. Schläger nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß mindestens eine seiner Rechts-Links-Hälften des Rahmens (6d, 6g) mit einem Siebdruck einer Verzierung oder Färbung versehen ist, die sie von der anderen Hälfte unterscheidet.
EP92420039A 1991-02-28 1992-02-04 Schläger mit länglicher Asymmetrie Expired - Lifetime EP0501895B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102635A FR2673381B1 (fr) 1991-02-28 1991-02-28 Raquette a asymetrie longitudinale.
FR9102635 1991-02-28

Publications (2)

Publication Number Publication Date
EP0501895A1 EP0501895A1 (de) 1992-09-02
EP0501895B1 true EP0501895B1 (de) 1995-04-12

Family

ID=9410366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420039A Expired - Lifetime EP0501895B1 (de) 1991-02-28 1992-02-04 Schläger mit länglicher Asymmetrie

Country Status (5)

Country Link
US (1) US5226651A (de)
EP (1) EP0501895B1 (de)
AT (1) ATE120973T1 (de)
DE (1) DE69201986T2 (de)
FR (1) FR2673381B1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691073B1 (fr) * 1992-05-14 1995-06-23 Rossignol Sa Raquette asymetrique pour la pratique du tennis ou analogue.
US5409229A (en) * 1992-08-05 1995-04-25 Callaway Golf Company Golf club head with audible vibration attenuation
CA2174696A1 (en) * 1996-04-22 1997-10-23 Charles Dicerbo Sports racket
US5913740A (en) * 1997-07-25 1999-06-22 Miklos; Edward J. Flat beam aerodynamic tennis racquet
JP3295905B2 (ja) * 1998-02-12 2002-06-24 住友ゴム工業株式会社 ラケットフレーム
JP3734008B2 (ja) * 1999-06-14 2006-01-11 Ｓｒｉスポーツ株式会社 ラケットフレーム
JP3519350B2 (ja) * 2000-08-04 2004-04-12 住友ゴム工業株式会社 ラケットフレーム
US20040248677A1 (en) * 2003-06-06 2004-12-09 Michael Vu Tennis racquet with ballast urged preferred face position
US7130971B2 (en) * 2004-03-30 2006-10-31 Hitachi, Ltd. Assuring genuineness of data stored on a storage device
DE102007042320A1 (de) 2007-09-06 2009-03-19 Head Technology Gmbh Ballschläger, bzw. Schlägerkomponenten, insbesondere Tennisschläger mit einschichtiger Bespannung und mit jeweils einer funktionellen Vorder- und Rückseite
JP5948082B2 (ja) * 2012-02-27 2016-07-06 ヨネックス株式会社 テニスラケット
DK3318308T3 (da) * 2015-06-05 2021-12-20 Yonex Co Ltd Badmintonketsjer
CN107921313A (zh) * 2015-06-05 2018-04-17 尤尼克斯株式会社 球拍
JP6776883B2 (ja) * 2016-12-26 2020-10-28 住友ゴム工業株式会社 テニスラケットフレーム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1523638A (en) * 1922-12-26 1925-01-20 Rubber Dev Company Articles of manufacture such as handles and the like
US4326714A (en) * 1980-06-09 1982-04-27 Novack Robert L Game implement
IT8153581V0 (it) * 1981-09-04 1981-09-04 Gibello Carlo Racchetta per il gioco del tennis
DE3325098A1 (de) * 1983-07-12 1985-01-24 Johannes 6630 Saarlouis Ulbl Tennisschlaegerrahmendreieckskonstruktion
FR2592804B1 (fr) * 1986-01-13 1989-04-07 Rossignol Sa Raquette de tennis en materiau stratifie
AU5741290A (en) * 1989-06-06 1991-01-07 Josef Baumgartner Tennis racket
FR2649899B1 (fr) * 1989-07-19 1992-05-22 Rossignol Sa Raquette de tennis
US5029858A (en) * 1990-07-17 1991-07-09 Dennis Chen Structure of a composite fiber racket
US5048830A (en) * 1990-09-20 1991-09-17 Lo Kun Nan Racket frame with shock absorbing characteristics
US5100136A (en) * 1990-11-23 1992-03-31 Chen Dennis C S Structure of racket

Also Published As

Publication number Publication date
FR2673381A1 (fr) 1992-09-04
DE69201986T2 (de) 1995-12-07
EP0501895A1 (de) 1992-09-02
US5226651A (en) 1993-07-13
DE69201986D1 (de) 1995-05-18
ATE120973T1 (de) 1995-04-15
FR2673381B1 (fr) 1994-05-06

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