EP0219310A2 - Dämpfungseinrichtung für Ballschläger - Google Patents

Dämpfungseinrichtung für Ballschläger Download PDF

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Publication number
EP0219310A2
EP0219310A2 EP86307789A EP86307789A EP0219310A2 EP 0219310 A2 EP0219310 A2 EP 0219310A2 EP 86307789 A EP86307789 A EP 86307789A EP 86307789 A EP86307789 A EP 86307789A EP 0219310 A2 EP0219310 A2 EP 0219310A2
Authority
EP
European Patent Office
Prior art keywords
racquet
spine
shock absorbing
absorbing device
beading
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Withdrawn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
EP86307789A
Other languages
English (en)
French (fr)
Other versions
EP0219310A3 (en
Inventor
Barry Alan Hughes Todd
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.)
Fin Sports Ltd
Original Assignee
Fin Sports Ltd
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 Fin Sports Ltd filed Critical Fin Sports Ltd
Priority claimed from AU64440/86A external-priority patent/AU588641B2/en
Publication of EP0219310A2 publication Critical patent/EP0219310A2/de
Publication of EP0219310A3 publication Critical patent/EP0219310A3/en
Withdrawn legal-status Critical Current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
    • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
    • 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
    • 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

  • This invention relates to strung racquets, and more especially to shock absorbing means utilised in such racquets.
  • this invention consists in a shock absorbing device for a racquet, comprising a strip of resilient material, a central spine on the strip for location within a grommet recess in the racquet head, a plurality of apertures through the spine for alignment with string holes in the racquet head, longitudinally extending integral beading to either side of the spine for at least partial covering of the outer edges of the racquet head adjacent the grommet recess, and one or more protuberances formed along the inner surface of the beading for engagement with the racquet head to cushion impact forces delivered thereto.
  • a plurality of integrally formed grommets extend from said spine for insertion within string holes of the racquet, the bore of each grommet respectively coinciding with one of the apertures.
  • the spine has one or more interruptions in the inner racquet engaging face thereof, said interruptions being formed between the apertures and including a plurality of protuberances formed therein to engage the bottom of the grommet recess. This arrangement provides for additional absorption of impact forces delivered to the device.
  • one or more recesses are preferably formed in the outer racquet remote face of the spine, the recesses extending between two or more of the apertures and being longitudinally spaced from the interruptions in the inner face of the spine. This spacing prevents weakening of the spine as would occur if the recesses and interruptions coincided.
  • the shock absorbing device 3 shown in the drawings consists of a moulded strip of thermoplastic material, provided with a degree of resiliency, which is intended for insertion within the grommet recess provided in the outer periphery of a racquet head (not shown).
  • the device 3 consists of a central longitudinally extending spine 4 supporting integral upstanding grommets 5 each provided with an axial bore 6. Apertures 6a are formed through the spine 4 and are spaced for alignment with the string holes in the racquet. The bore 6 of each grommet 5 coincides with one of the apertures 6a.
  • the spacing of the grommets 5 thus corresponds in position with the string holes in the racquet head so that each grommet 5 extends through a respective string hole when the device 3 is applied to the grommet recess of the racquet head. Stringing for the racquet will therefore be passed through a grommet 5a and back through the grommet 5b to secure the device 3 in position upon the racquet. It will be noted from Figure 1 that some grommets 5 are arranged in larger groups than others, such as grouping 5c and this is for the purpose of tying-off of strings in a manner which will be made clear hereafter.
  • the device 3 is provided with lateral beadings 7 extending longitudinally of the device and to either side of the spine 4.
  • the beadings 7 are arcuate in transverse cross section so that when the device is positioned upon the racquet head the beading 7 will extend from the grommet recess to, or enclose the outer edges of the racquet head.
  • This provision will safeguard against abrasion to the racquet frame, but by this invention a row of protuberances 8 are integrally formed on the inner surface of each beading 7. They will function to absorb impact shocks delivered to the side of the racquet head.
  • the protuberances 8 may be of many forms such as a continuous, or discontinuous rib, (not shown), prongs or spikes (not shown) or a series of raised dots as shown. It will be apparent that the beadings can be any suitable transverse cross-sectional shape and need only partly cover the outer edge of the racquet head.
  • protuberances 9 are formed at interruptions 10 in the inner racquet engaging face of the spine 4 at spaced intervals therealong.
  • the protuberances 9 will engage with the bottom of the grommet recess therein.
  • the spine 4 does not possess a uniform thickness of material throughout its length.
  • a recess 11 is provided in the outer racquet remote face 12 of the device 3 which, as shown in Fig. 1, communicates with a group of four grommets 5.
  • tying-off of strings may be effected between these four grommets 5 without exposure beyond the surface 12.
  • an interruption 10 is provided on the inner face of the device 3 no recess 11 is provided thereunder. Therefore, the spine 4 is thickened immediately beneath any interruption 10 to improve the shock absorbing quality of the device 3.
EP86307789A 1985-10-11 1986-10-09 A racquet shock absorbing device Withdrawn EP0219310A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPH286485 1985-10-11
AU2864/85 1985-10-11
AU64440/86A AU588641B2 (en) 1985-10-11 1986-10-10 Racquet shock absorbing device

Publications (2)

Publication Number Publication Date
EP0219310A2 true EP0219310A2 (de) 1987-04-22
EP0219310A3 EP0219310A3 (en) 1988-08-03

Family

ID=25634353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86307789A Withdrawn EP0219310A3 (en) 1985-10-11 1986-10-09 A racquet shock absorbing device

Country Status (1)

Country Link
EP (1) EP0219310A3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858928A (en) * 1986-06-10 1989-08-22 Yamaha Corporation Racket frame
US4913434A (en) * 1987-05-05 1990-04-03 Fischer Gesellschaft M.B.H. Frame for a ball game racquet
US4989870A (en) * 1988-05-16 1991-02-05 Spalding & Evenflo Companies, Inc. Tennis racket
ES2060475A2 (es) * 1991-06-13 1994-11-16 Carlos Daniel Perez Mejoras en la estructura de las paletas para jugar al paddle o paddle tennis.
EP0884074A3 (de) * 1997-06-13 1999-02-10 Wilson Sporting Goods Company Spielschläger mit Schlitzen für Saiten in der Innenwand

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7604028U1 (de) * Eltro Gmbh, Gesellschaft Fuer Strahlungstechnik, 6900 Heidelberg
DE2546028A1 (de) * 1974-10-21 1976-04-22 Prince Mfg Inc Tennisschlaeger
DE2065888A1 (de) * 1969-08-28 1976-10-28 Maark Corp Tennisschlaeger mit einem handgriff aus kunststoff und verfahren zur herstellung des handgriffs und zu dessen verbindung mit dem tennisschlaeger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7604028U1 (de) * Eltro Gmbh, Gesellschaft Fuer Strahlungstechnik, 6900 Heidelberg
DE2065888A1 (de) * 1969-08-28 1976-10-28 Maark Corp Tennisschlaeger mit einem handgriff aus kunststoff und verfahren zur herstellung des handgriffs und zu dessen verbindung mit dem tennisschlaeger
DE2546028A1 (de) * 1974-10-21 1976-04-22 Prince Mfg Inc Tennisschlaeger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858928A (en) * 1986-06-10 1989-08-22 Yamaha Corporation Racket frame
US4913434A (en) * 1987-05-05 1990-04-03 Fischer Gesellschaft M.B.H. Frame for a ball game racquet
US4989870A (en) * 1988-05-16 1991-02-05 Spalding & Evenflo Companies, Inc. Tennis racket
ES2060475A2 (es) * 1991-06-13 1994-11-16 Carlos Daniel Perez Mejoras en la estructura de las paletas para jugar al paddle o paddle tennis.
EP0884074A3 (de) * 1997-06-13 1999-02-10 Wilson Sporting Goods Company Spielschläger mit Schlitzen für Saiten in der Innenwand
US6050909A (en) * 1997-06-13 2000-04-18 Wilson Sporting Goods Co. Game racquet with string slots in inner wall

Also Published As

Publication number Publication date
EP0219310A3 (en) 1988-08-03

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Inventor name: TODD, BARRY ALAN HUGHES