EP0490035A1 - Raquette synthétique pour le tennis et sports apparentés - Google Patents

Raquette synthétique pour le tennis et sports apparentés Download PDF

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Publication number
EP0490035A1
EP0490035A1 EP91116667A EP91116667A EP0490035A1 EP 0490035 A1 EP0490035 A1 EP 0490035A1 EP 91116667 A EP91116667 A EP 91116667A EP 91116667 A EP91116667 A EP 91116667A EP 0490035 A1 EP0490035 A1 EP 0490035A1
Authority
EP
European Patent Office
Prior art keywords
frame
racket
central region
channel
thickness
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Withdrawn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
EP91116667A
Other languages
German (de)
English (en)
Inventor
Matthias S. Bothe
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 EP0490035A1 publication Critical patent/EP0490035A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/10—Frames made of non-metallic materials, other than wood
    • 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

Definitions

  • the invention relates to a racket made of plastic, in particular a tennis, squash, badminton or racquetball racket, the frame height of which is transverse to the plane in which the strings are located, and is greater than the frame thickness in the string plane.
  • the invention has for its object to provide a plastic racket of the type mentioned, the frame thickness can be further reduced.
  • the invention has the advantages over the known that a much thinner frame can be produced than was previously possible.
  • tennis rackets can be made with a frame thickness of 7 mm or less, and with badminton rackets a frame thickness of 5 mm or less can be achieved. This improves the aerodynamic properties of the racket and its shape becomes slimmer than before, which leads to an improvement in the design of the racket. Furthermore, the stability of the racket is increased despite the reduction in the frame thickness.
  • a racket 1 made of plastic for tennis, badminton, squash or racquetball essentially comprises a clamping frame 2 or 3, a bridge 4, shafts 5, 6 forming the heart area of the racket and a handle 9.
  • a first embodiment of the racket according to the invention with the tensioning frame 2 for tensioning the strings 18 has a cross section at least at one point along the line II-II, as shown in FIG. 2.
  • the frame height of the racket transversely to the plane in which the strings lie is greater than the frame thickness in the string plane.
  • the frame for example the tensioning frame 2, is solid in its central region 7 and has a channel-shaped cavity 10, 11 at narrow ends 14, 15 facing away from each other.
  • the channel-shaped cavity 10, 11 is filled with air.
  • the tensioning frame 3 (FIG. 1) has a cross section at least at one point along the line III-III, as shown in FIG. 3.
  • the cross section initially corresponds to that according to FIG. 2.
  • the tensioning frame 3 is also solid in its central region 8 and has a channel-shaped cavity 12, 13 at narrow ends 16, 17 facing away from one another.
  • the channel-shaped cavity 12, 13 is filled with a material.
  • a filling material that inflates when heated and other materials that improve the strength or damping properties of the racket are suitable.
  • the central region 7 or 8 (FIGS. 2, 3) is formed homogeneously from a single material in a first embodiment of the invention.
  • the central region 7 or 8 is formed from more than one material (which, however, is not shown in the drawing).
  • FIGS. 2 and 3 extends in another embodiment of the invention over several areas of the relevant clamping frame 2 or 3.
  • the cross section described with reference to FIGS. 2 and 3 is continuously present on the relevant clamping frame 2 or 3.
  • the cross section described with reference to FIGS. 2 and 3 is provided on the bridge 4 of the racket 1.
  • the cross section described with reference to FIGS. 2 and 3 is provided on the shafts 5, 6 in the heart region of the racket 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
EP91116667A 1990-10-03 1991-09-30 Raquette synthétique pour le tennis et sports apparentés Withdrawn EP0490035A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031180A DE4031180A1 (de) 1990-10-03 1990-10-03 Schlaeger, insbesondere tennis-, squash-, badminton- oder racketballschlaeger
DE4031180 1990-10-03

Publications (1)

Publication Number Publication Date
EP0490035A1 true EP0490035A1 (fr) 1992-06-17

Family

ID=6415441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116667A Withdrawn EP0490035A1 (fr) 1990-10-03 1991-09-30 Raquette synthétique pour le tennis et sports apparentés

Country Status (5)

Country Link
EP (1) EP0490035A1 (fr)
JP (1) JPH05123423A (fr)
AU (1) AU8487791A (fr)
CA (1) CA2052675A1 (fr)
DE (1) DE4031180A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5913740A (en) * 1997-07-25 1999-06-22 Miklos; Edward J. Flat beam aerodynamic tennis racquet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100378A1 (fr) * 1982-08-11 1984-02-15 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Structure composée à noyau expansé renforcé utilisée comme cadre de raquette de tennis
WO1990009213A1 (fr) * 1989-01-27 1990-08-23 Ferrari Importing Company, Inc. Cadre de raquette avec trous pour la rigidite du cadre
DE9100325U1 (de) * 1991-01-12 1991-04-04 Suchy, Peter, Dipl.-Ing., 8520 Erlangen Saitenbespannbarer Schläger zum Spielen von Bällen, insbesondere Tennis-, Squash-Schläger o.dgl.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923652A (en) * 1956-04-05 1960-02-02 Oka Tokichi Method of manufacturing racket frames
SE7611409L (sv) * 1976-10-14 1978-04-15 Astrom Karl Gustav Badmintonracket
EP0108652B1 (fr) * 1982-06-14 1987-09-23 Cousin Freres S.A. Cadre de raquette de tennis et son procédé de fabrication
DE3609453A1 (de) * 1986-03-20 1987-10-01 Erbsloeh Julius & August Tennisschlaeger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100378A1 (fr) * 1982-08-11 1984-02-15 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Structure composée à noyau expansé renforcé utilisée comme cadre de raquette de tennis
WO1990009213A1 (fr) * 1989-01-27 1990-08-23 Ferrari Importing Company, Inc. Cadre de raquette avec trous pour la rigidite du cadre
DE9100325U1 (de) * 1991-01-12 1991-04-04 Suchy, Peter, Dipl.-Ing., 8520 Erlangen Saitenbespannbarer Schläger zum Spielen von Bällen, insbesondere Tennis-, Squash-Schläger o.dgl.

Also Published As

Publication number Publication date
AU8487791A (en) 1992-05-07
JPH05123423A (ja) 1993-05-21
DE4031180A1 (de) 1992-04-09
CA2052675A1 (fr) 1992-04-04

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