EP0214949B1 - Dispositif de protection du cordage d'une raquette, en particulier d'une raquette de tennis - Google Patents

Dispositif de protection du cordage d'une raquette, en particulier d'une raquette de tennis Download PDF

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Publication number
EP0214949B1
EP0214949B1 EP86890196A EP86890196A EP0214949B1 EP 0214949 B1 EP0214949 B1 EP 0214949B1 EP 86890196 A EP86890196 A EP 86890196A EP 86890196 A EP86890196 A EP 86890196A EP 0214949 B1 EP0214949 B1 EP 0214949B1
Authority
EP
European Patent Office
Prior art keywords
strings
support
frame
circumferential groove
parts
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
Application number
EP86890196A
Other languages
German (de)
English (en)
Other versions
EP0214949A1 (fr
Inventor
Helmut Ing. Umlauft
Karl-Heinz Ing. Wäger
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.)
Head Sport GmbH
Original Assignee
Head Sportgerate and Co oHG GmbH
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 Head Sportgerate and Co oHG GmbH filed Critical Head Sportgerate and Co oHG GmbH
Publication of EP0214949A1 publication Critical patent/EP0214949A1/fr
Application granted granted Critical
Publication of EP0214949B1 publication Critical patent/EP0214949B1/fr
Expired 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
    • A63B49/022—String guides on frames, e.g. grommets

Definitions

  • the invention relates to a device for protecting the strings of a ball racket, in particular a tennis racket, having a band-shaped carrier which can be positioned in a circumferential groove on the outside of the frame and which has tubular projections which engage in radial openings in the circumferential groove of the frame, the carrier having an external one Has circumferential groove.
  • a disadvantage of these known designs is the fact that the portions of the strings running on the circumference of the frame of the tennis racket are exposed without protection, and for this purpose it has already been proposed to provide a circumferential groove on the outside of the tennis racket for a certain protection to ensure the strings in this area.
  • the strings remain exposed, so that on the one hand there is an external sight disturbing the overall picture of the racket, and on the other hand there is the risk that when the outer edge of the racket comes into contact with pointed objects, an unintentional shift of parts of the strings in this groove and thus an unintentional change in the tension of the strings and damage to the strings.
  • US-A-4 220 335 shows and describes a racket with a carrier for tubular attachments arranged in a circumferential groove on the outside of the frame, which engage in openings in the circumferential groove of the frame, through which the strings are guided during stringing.
  • the carrier is designed according to the outer contour of the frame and the string lies on the surface of the carrier after tensioning.
  • the invention now aims to provide a device of the type mentioned, which makes it possible to define the position of the strings on the outer contour of the frame of a tennis racket more precisely, and offers the possibility of bracing these strings protected and concealed.
  • the invention essentially consists in that the circumferential groove is delimited by recessed wall parts of the carrier, which can be moved relative to one another by tensioning the strings inserted into the circumferential groove of the carrier.
  • the circumferential groove of the carrier is at least partially closed, so that the strings lie in the circumferential groove in a completely protected manner.
  • the carrier consists of an elastically deformable material, in particular plastic.
  • the design is such that the side of the carrier facing the frame in the untensioned state of the strings between the base of the circumferential groove of the frame and the carrier leaves a space in which the carrier can be deformed by tensioning the strings.
  • the procedure is expediently such that the mutually facing edges of the recessed wall parts abut one another after assembly of the strings and have recesses or openings aligned with the tubular projections.
  • the recesses or openings aligned with the tubular lugs facilitate the assembly of the strings and the passage of the strings through the tubular lugs.
  • the arrangement can be made according to the invention such that the parts of the carrier which overlap the frame include an angle to the axis of the tubular lugs which is different from the angle of the adjacent frame surfaces to the axis of the tubular lugs before the strings are installed.
  • This angle which the parts of the carrier enclosing the frame enclose before the strings are installed, can be larger, for example.
  • the design is expediently such that the protruding wall parts of the circumferential groove of the carrier after the assembly of the strings complete the circumferential groove by deforming the angle of the parts of the carrier overlapping the frame.
  • the lateral parts of the carrier are appropriately shaped in the cross-sectional profile of the outer contour of the frame.
  • the lateral edges of the lateral parts of the carrier lie snugly against the tennis racket frame, which results in an aerodynamically favorable embodiment.
  • the tennis racket offers less aerodynamic drag when struck thanks to this aerodynamically favorable embodiment, and the strike can therefore be carried out more forcefully with less effort.
  • the circumferential groove is completely closed with the exception of the openings and the parts of the strings lying in the circumferential groove are therefore properly protected.
  • the base of the circumferential groove of the carrier adjacent to the tubular projections in the cross-sectional profile expediently has adjacent, longitudinally extending grooves with a rounded cross-section.
  • the cross section of the grooves is preferably at least the same size as the cross section of the strings, and a longitudinal bulge is provided between the grooves opposite the projecting wall parts. Due to the bead running between the grooves, the string is inevitably steered into one of the two grooves, so that it assumes a precisely defined position in the circumferential groove.
  • the strings are protected from damage and by reducing the air resistance when struck, a stronger stroke is made possible.
  • a frame 1 of a tennis racket is shown.
  • a carrier 2 with a plurality of tubular projections 3 is provided, in which a circumferential groove 4 for receiving a string 5 is arranged.
  • the string 5 is already under tension, so that the carrier 2 is pressed against the outer contour 6 of the frame 1.
  • the contour of the side parts 7 and 8 of the carrier facing the frame 1 is designed in accordance with the outer contour 6 of the frame 1, so that there is a positive overlap.
  • the circumferential groove 4 has two grooves 9 and 10, respectively, which promote the elastic deformation of the lateral parts 7 and 8.
  • the string 5 is subsequently passed through the cavity 11 of the tubular extension and the tubular extensions 3 and guided to the opposite side of the frame.
  • the carrier 2 shows the carrier 2 in the untensioned state, in which it is still placed on the frame 1.
  • the carrier 2 is formed in one piece with the tubular lugs and made of an elastically deformable material, such as plastic.
  • the carrier By tensioning the strings, the carrier, as shown in FIG. 3, is pressed in the direction of arrow 16, the inner contour 17 of the lateral parts 7 and 8 positively engaging the outer contour 6 of the frame 1.
  • this deformation triggers a movement of the edges 13 of the projecting wall parts 12 relative to one another, which is achieved in that the angle a, which encloses the lateral regions 7 and 8 with the axis 18 of the tubular projections 3, before tensioning or moving in the direction of arrow 16 is smaller than the angle ⁇ , which the lateral regions 7 and 8 assume after bracing with said axis 18, as shown in FIG. 3.
  • the lateral regions 7 and 8 are thus entangled in the direction of the arrows 19 when the tubular extensions move in the direction of the arrow 16, which results in the closed configuration shown in FIG. 3.
  • the tubular lugs 3 are arranged at intervals from one another on the carrier 2, which correspond to the intervals of the holes 20 in the tennis racket frame and penetrate into the holes 20 when the carrier moves in the direction of the arrow 16.
  • the carrier 2 which has been slightly modified in its profile, is placed on the frame 1 and the strings 5 are tensioned.
  • the carrier 2 is pressed against the frame 1 in the direction of the arrow 16 in FIG.
  • a slight air gap 21 can be seen between the frame 1 and the carrier 2. It is only essential that the outer edges 22 rest snugly on the frame 1, as a result of which the aerodynamically favorable shape is achieved.
  • Such an air gap 21 even has a favorable effect, since it favors the elastic deformation of the lateral parts 7 and 8 and the protruding wall parts 12.
  • Fig. 5 explains the assembly of the strings.
  • the carrier 2 lies in its position pressed against the frame, in which it is held by the already tensioned strings.
  • the string 5 to be assembled is placed in the position 5 'on the edges 13 of the recessed wall parts 12.
  • the string is inserted through the opening 14 into the tubular extension 3.
  • the string 5 When the string 5 is tensioned, it presses the projecting wall parts 12 downward and the string 5 slides from the position 5 'between the pressed-in projecting wall parts 12 into the circumferential groove 4 of the carrier 2, whereupon the projecting wall parts 12 snap back into the position shown.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Artificial Filaments (AREA)
  • Clamps And Clips (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Display Devices Of Pinball Game Machines (AREA)

Claims (11)

1. Dispositif destiné à protéger les cordes (5) d'une raquette, notamment d'une raquette de tennis, comprenant un support ou élément d'appui (2) destiné à être positionné dans une gorge périphérique prévue sur le côte extérieur du cadre (1 ) et muni de tétons tubulaires (3) qui s'engagent dans des trous radiaux de la gorge périphérique du cadre (1 ), l'élément d'appui (2) présentant aussi une gorge périphérique extérieure (4), caractérisé en ce que la gorge (4) de l'élément d'appui (2) est limitée par des parties des parois (12) rentrantes, formées sur l'élément d'appui, lesquelles parties de parois sont aptes à se rappocher l'une de l'autre sous l'effet de la tension des cordes (5) mises en place dans la gorge périphérique (4) de l'élément d'appui (2).
2. Dispositif selon la revendication 1, caractérisé en ce que l'élément d'appui (2) est fait d'une matière élastiquement déformable notamment, d'une matière plastique.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que, dans l'état détendu des cordes (5), la face de l'élément d'appui (2) qui est dirigée vers le cadre laisse libre entre le fond de la gorge périphérique du cadre (1) et l'élément d'appui (2) un espace dans lequel l'élément d'appui (2) peut se déformer sous l'effet de la tension des cordes (5).
4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les parties de parois rentrantes (12) de l'élément d'appui (2) sont reliées à des parties latérales (7, 8) de l'élément d'appui (2) qui recouvrent le cadre (1).
5. Dispositif selon une des revendications 1 à 4, caractérisé en ce que les.bordes (13) des parties de parois rentrantes (12) qui sont dirigés l'un vers l'autre sont en appui l'un contre l'autre après le montage des cordes (5) et présentent des évidements ou ouvertures (14, 15) situés dans l'alignement des tétons tubulaires (3).
6. Dispositif selon une des revendications 1 à 4, caractérisé en ce que, avant le montage des cordes (5), les parties (7, 8) de l'élément d'appui (2) qui recouvrent le cadre (1) forment, avec l'axe des tétons tubulaires (3), un angle différent de l'angle que les surfaces adjacentes du cadre forment avec l'axe des tétons tubulaires (3).
7. Dispositif selon la revendication 6, caractérisé en ce que, après le montage des cordes (5), les parties de parois rentrantes (12) de la gorge périphérique (4) de l'élément d'appui (2) referment la gorge périphérique (4) avec déformation des angles des parties (7, 8) de l'élément d'appui qui recouvrent le cadre (1
8. Dispositif selon une des revendications 1 à 7, caractérisé en ce que les parties latérales (7, 8) de l'élément d'appui (2) sont d'une configuration qui correspond en profil de section au profil extérieur (6) du cadre (1).
9. Dispositif selon une des revendications 1 à 7, caractérisé en ce que, après le montage des cordes (5) au moins les bords latéraux des parties latérales (7, 8) de l'élément d'appui (2) sont en appui partoute leur surface contre le cadre (1) de la raquette de tennis.
10. Dispositif selon une des revendications 1 à 9, caractérisé en ce que le fond de la gorge périphérique (4) de l'élément d'appui (2) qui est adjacent aux tétons tubulaires (3) présente des gorges (9, 10) à section arrondie, qui s'étendent dans la direction longitudinale et sont adjacentes aux parties de parois rentrantes (12) dans le profil de la section.
11. Dispositif selon la revendication 10, caractérisé en ce que la section transversale des gorges (9, 10) est au moins égale à la section transversale des cordes (5) et en ce que qu'il est prévu entre les gorges (9, 10) un bourrelet longitudinal (23) qui fait face à la partie de paroi rentrante (12).
EP86890196A 1985-07-09 1986-07-01 Dispositif de protection du cordage d'une raquette, en particulier d'une raquette de tennis Expired EP0214949B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2031/85 1985-07-09
AT0203185A AT386531B (de) 1985-07-09 1985-07-09 Einrichtung zum schutz der saiten eines ballschlaegers, insbesondere tennisschlaegers

Publications (2)

Publication Number Publication Date
EP0214949A1 EP0214949A1 (fr) 1987-03-18
EP0214949B1 true EP0214949B1 (fr) 1989-05-03

Family

ID=3526319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890196A Expired EP0214949B1 (fr) 1985-07-09 1986-07-01 Dispositif de protection du cordage d'une raquette, en particulier d'une raquette de tennis

Country Status (6)

Country Link
US (1) US4776592A (fr)
EP (1) EP0214949B1 (fr)
JP (1) JPS6214872A (fr)
AT (1) AT386531B (fr)
CA (1) CA1268792A (fr)
DE (1) DE3663110D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT388106B (de) * 1987-05-05 1989-05-10 Fischer Gmbh Rahmen fuer ballschlaeger
USD314028S (en) 1988-06-27 1991-01-22 Prince Manufacturing, Inc. Bumper strip for tennis racquets
US5165687A (en) * 1989-07-06 1992-11-24 Soong Tsai C Damping layer assembly with constraining plate layer for sports racket
US5102132A (en) * 1991-04-23 1992-04-07 Dennis Chen Protective assembly for tennis rackets
US5280907A (en) * 1992-10-26 1994-01-25 Leueis Liu Protective casing for a game racket
US5362071A (en) * 1993-09-27 1994-11-08 Leueis Liu Protective casing for a racket frame
TW348549U (en) * 1995-05-10 1998-12-21 Prince Sports Group Inc Cushion bumper assembly for sports racquets
US7407457B2 (en) * 2005-05-03 2008-08-05 Jeffrey David Dollins Racket bumper guard
JP2017217067A (ja) * 2016-06-03 2017-12-14 ヨネックス株式会社 ラケット、及び、グロメット
CN109107121B (zh) * 2018-08-09 2024-03-22 厦门新凯复材科技有限公司 一种中空球拍及其生产方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7604028U1 (fr) * Eltro Gmbh, Gesellschaft Fuer Strahlungstechnik, 6900 Heidelberg
GB212195A (en) * 1923-09-18 1924-03-06 Hobbies Ltd Improvements in metal framed tennis and similar racquets
US3642283A (en) * 1970-02-02 1972-02-15 Howard John Wilkens Magnesium tennis racket with weighted throat piece
DE2010450A1 (de) * 1970-03-05 1971-09-23 Groupement Industriel de Realisation et dEtudes (G.I.R.E.), Villemomble, Seine-Saint-Denis (Frankreich) Schläger zur Ausübung von Tennis oder anderen gleichartigen Sportarten
FR2371941A1 (fr) * 1976-11-26 1978-06-23 Dorestyl Cadre de raquette pour la pratique du tennis ou autres sports et jeux similaires
US4220335A (en) * 1977-12-31 1980-09-02 Alloway Trust Limited Games rackets
US4280699A (en) * 1980-01-25 1981-07-28 Leach Industries Game racquet
GB2086236B (en) * 1980-11-04 1984-07-04 Mott Jonathan Christopher Racquets

Also Published As

Publication number Publication date
CA1268792A (fr) 1990-05-08
ATA203185A (de) 1988-02-15
US4776592A (en) 1988-10-11
EP0214949A1 (fr) 1987-03-18
AT386531B (de) 1988-09-12
DE3663110D1 (en) 1989-06-08
JPS6214872A (ja) 1987-01-23

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