EP0241393A1 - Vorrichtung zum Dämpfen der Schwingungen einer Schlägerbespannung - Google Patents

Vorrichtung zum Dämpfen der Schwingungen einer Schlägerbespannung Download PDF

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Publication number
EP0241393A1
EP0241393A1 EP87420093A EP87420093A EP0241393A1 EP 0241393 A1 EP0241393 A1 EP 0241393A1 EP 87420093 A EP87420093 A EP 87420093A EP 87420093 A EP87420093 A EP 87420093A EP 0241393 A1 EP0241393 A1 EP 0241393A1
Authority
EP
European Patent Office
Prior art keywords
membrane
rope
damping
racket
vibrations
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.)
Granted
Application number
EP87420093A
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English (en)
French (fr)
Other versions
EP0241393B1 (de
Inventor
Dominique Deville
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9334312&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0241393(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP0241393A1 publication Critical patent/EP0241393A1/de
Application granted granted Critical
Publication of EP0241393B1 publication Critical patent/EP0241393B1/de
Anticipated expiration legal-status Critical
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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
    • 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
    • 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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/028—Means for achieving greater mobility of the string bed

Definitions

  • the present invention relates to a device for damping the vibrations of the stringing of a racket, such as a tennis, squash, badminton, or other racket, more particularly intended for damping the vibrations of the strings.
  • a tennis racket or other generally consists of a handle held by the player, extended by a frame called basket, of round or oval shape for example, itself carrying the sieve composed of longitudinal strings and transverse strings, forming the striking surface.
  • Each rope generally crosses the frame right through, passing inside a hole provided for this purpose.
  • the base of the basket located near the handle, generally forms a "bridge" supporting the central longitudinal cords.
  • the subject of the invention is a device for damping the vibrations of the stringing of a racket and the noise which results thereby making it possible to overcome this drawback. It is constituted by at least one flexible annular membrane, pierced with an orifice of diameter smaller than that of the rope, and fixed respectively in one of the holes of at least the lower part of the basket, or bridge, holes intended for each to deliver passage to the rope.
  • the flexible annular membrane is fixed in a tubular piece, called a barrel or an eyelet, itself passing through the bore and serving as a passage for the rope.
  • This tubular part is, in a manner known per se, intended to avoid cutting the rope.
  • a tennis racket 1 is composed of a handle 2, two branches 2b, extended by a basket 3, the lower part 4 of which forms a "bridge ".
  • the frame 3 itself carries the "sieve” 5, composed of longitudinal strings 6 and transverse strings 7, forming the striking surface.
  • each rope is fixed to the basket 3 by passing through holes 8 in this frame, and more precisely in tubular parts 9, or “barrels", or eyelets, in polyamide for example, fixed in these holes.
  • a flexible annular membrane 10, made of elastomer for example is attached, glued or force fitted, in the barrels 9 relating to the longitudinal ropes 6, and at least in the central part of the bridge 4.
  • all the barrels 9 relating to the longitudinal strings 6, whatever they are, are each fitted with a membrane 10.
  • each membrane 10 is of smaller diameter than that of the cord. It is therefore strongly pinched by the membrane.
  • each membrane 10 is fixed towards the end of the barrel 9, that is to say of the bore 8, situated towards the inside of the basket 3.
  • each membrane 10 can be produced at the same time as the associated barrel 9, by bi-injection, overmolding or any other process.
  • barrels 9 could be absent, in which case each membrane would be fixed directly in the corresponding bore 8, which would then have the same internal diameter as the barrel 9.
  • the barrels 9, each equipped with their membrane 10, can be produced individually, but, as shown in FIG. 2, they can also be produced in a single molding piece in groups of two or more.
  • the bridge 4 is equipped, in its main central part with four rope jumpers 11, molded in one piece and shaped as shown to allow passage to the longitudinal rope.
  • both the transverse and longitudinal strings stretched along the lateral parts of the basket 3 pass through successive barrels 9 which are formed by molding in one piece with a common strip 12, carrying said barrels, and fixed, as shown in a groove 13 in the outer part of the basket 3.
  • FIG. 4 shows a barrel 9, equipped with its membrane 10, before passage of the associated cord.
  • the membrane 10 may have not J conical double-entry.
  • FIG. 5 shows the same barrel 9, after passage and tension of the longitudinal rope 6. It can be seen that the membrane 10 is strongly deformed towards the inside of the racket and that, the central orifice 14 having been greatly enlarged by force by the passage of the cord 6, a permanent contact zone has been created between the membrane and the cord.
  • the invention is of course not limited to the embodiment which has just been described by way of example. It applies in particular to the damping of transverse as well as longitudinal strings.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Vibration Dampers (AREA)
  • Vibration Prevention Devices (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Cereal-Derived Products (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Buffer Packaging (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP87420093A 1986-04-08 1987-04-07 Vorrichtung zum Dämpfen der Schwingungen einer Schlägerbespannung Expired - Lifetime EP0241393B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605479 1986-04-08
FR8605479A FR2596661B1 (fr) 1986-04-08 1986-04-08 Dispositif amortisseur de vibrations de cordage d'une raquette

Publications (2)

Publication Number Publication Date
EP0241393A1 true EP0241393A1 (de) 1987-10-14
EP0241393B1 EP0241393B1 (de) 1990-08-16

Family

ID=9334312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420093A Expired - Lifetime EP0241393B1 (de) 1986-04-08 1987-04-07 Vorrichtung zum Dämpfen der Schwingungen einer Schlägerbespannung

Country Status (6)

Country Link
US (2) US4909511A (de)
EP (1) EP0241393B1 (de)
JP (1) JPS62295675A (de)
DE (2) DE3764293D1 (de)
ES (1) ES2016645B3 (de)
FR (1) FR2596661B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553769A1 (de) * 1992-01-29 1993-08-04 FRANZ VÖLKL GmbH & CO. SKI UND TENNIS SPORTARTIKELFABRIK KG Ballspielschläger, insbesondere Tennisschläger
US5290031A (en) * 1991-12-28 1994-03-01 Yamaha Corporation String protector for a racket frame
EP0601701A2 (de) * 1992-11-12 1994-06-15 Tsai Chen Soong Sportschläger, an dem alle Saiten schwingungsgedämpft sind
WO1998028049A1 (en) * 1996-12-23 1998-07-02 Prince Sports Group, Inc. Notched, slotted grommet for sports racquet
US5833560A (en) * 1997-03-19 1998-11-10 Prince Sports Group, Inc. Racquetball racquet
US6527656B1 (en) 2001-11-27 2003-03-04 Wilson Sporting Goods Co. Two-piece grommet assembly for a sports racquet

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222998A (en) * 1992-01-31 1993-06-29 Ferrari Importing Company Device for facilitating application of variable tension to sports racquet stringing bed
US5409229A (en) * 1992-08-05 1995-04-25 Callaway Golf Company Golf club head with audible vibration attenuation
US5458331A (en) * 1994-07-22 1995-10-17 Bothwell; Brett P. Game racket with adjustable string suspension system
DE29708231U1 (de) * 1997-05-07 1997-07-24 Shaw, Ching-Song, Taichung Schläger mit einem Kopfrahmen mit Stoßdämpfungswirkung
US6506134B2 (en) 1997-06-25 2003-01-14 Fabio Paolo Bertolotti Interlocking string network for sports rackets
US6132325A (en) * 1997-06-25 2000-10-17 Bertolotti; Fabio P Interlocking string network for sport rackets
US6540626B1 (en) * 2002-04-03 2003-04-01 Steven Tsai Racket structure with ball-striking racket face
US7097576B2 (en) * 2002-05-17 2006-08-29 Ef Composite Technologies, L.P. String bearing assemblies for sports racquets
US6852048B1 (en) * 2002-05-17 2005-02-08 Ef Composite Technologies, L.P. Guiding and vibration dampening string tubes for sports racquets
TW540400U (en) * 2002-06-12 2003-07-01 Sung-Gung Tsai Shock-absorption structure for thread of racket
US6811502B1 (en) 2003-04-30 2004-11-02 Wilson Sporting Goods Co. Racquet with elongated peripheral main string segments and enlarged sweet spot
US9132321B2 (en) 2007-11-26 2015-09-15 Brett Bothwell System and method for an inflation bladder composite game racket
US9821197B2 (en) 2007-11-26 2017-11-21 Brett Bothwell System and method for a game racquet including a grommet actuator
US9320946B2 (en) 2007-11-26 2016-04-26 Brett Bothwell System and method for a game racquet including an actuator
US8834306B2 (en) 2011-07-20 2014-09-16 Ef Composite Technologies, L.P. Racquet with elongated grommet barrels
TWI814023B (zh) * 2021-01-28 2023-09-01 陳威融 球拍減震裝置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567225A (en) * 1968-03-26 1971-03-02 Brancroft Racket Co Racket including string engaging elastomeric bushings and pads
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
FR2371941A1 (fr) * 1976-11-26 1978-06-23 Dorestyl Cadre de raquette pour la pratique du tennis ou autres sports et jeux similaires
FR2495477A1 (fr) * 1980-12-04 1982-06-11 Ireb Raquette de tennis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1697814A (en) * 1925-12-12 1929-01-01 Gen Motors Corp Grommet
US3642283A (en) * 1970-02-02 1972-02-15 Howard John Wilkens Magnesium tennis racket with weighted throat piece
US3990701A (en) * 1974-11-26 1976-11-09 Sung Baik Kim Tennis racket
DE2752673A1 (de) * 1977-11-25 1979-05-31 Kuebler & Co Tennisschlaeger
US4204681A (en) * 1978-07-13 1980-05-27 Amf Incorporated Game ball racket wherein certain racket components are structurally integrated with the racket frame by the string with which the racket is strung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567225A (en) * 1968-03-26 1971-03-02 Brancroft Racket Co Racket including string engaging elastomeric bushings and pads
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
FR2371941A1 (fr) * 1976-11-26 1978-06-23 Dorestyl Cadre de raquette pour la pratique du tennis ou autres sports et jeux similaires
FR2495477A1 (fr) * 1980-12-04 1982-06-11 Ireb Raquette de tennis

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290031A (en) * 1991-12-28 1994-03-01 Yamaha Corporation String protector for a racket frame
EP0553769A1 (de) * 1992-01-29 1993-08-04 FRANZ VÖLKL GmbH & CO. SKI UND TENNIS SPORTARTIKELFABRIK KG Ballspielschläger, insbesondere Tennisschläger
EP0601701A2 (de) * 1992-11-12 1994-06-15 Tsai Chen Soong Sportschläger, an dem alle Saiten schwingungsgedämpft sind
EP0601701A3 (de) * 1992-11-12 1995-02-15 Soong Tsai C Sportschläger, an dem alle Saiten schwingungsgedämpft sind.
WO1998028049A1 (en) * 1996-12-23 1998-07-02 Prince Sports Group, Inc. Notched, slotted grommet for sports racquet
US5833560A (en) * 1997-03-19 1998-11-10 Prince Sports Group, Inc. Racquetball racquet
US6527656B1 (en) 2001-11-27 2003-03-04 Wilson Sporting Goods Co. Two-piece grommet assembly for a sports racquet

Also Published As

Publication number Publication date
ES2016645B3 (es) 1990-11-16
DE3764293D1 (de) 1990-09-20
FR2596661B1 (fr) 1989-08-25
DE241393T1 (de) 1990-06-13
EP0241393B1 (de) 1990-08-16
FR2596661A1 (fr) 1987-10-09
US4993711A (en) 1991-02-19
JPS62295675A (ja) 1987-12-23
US4909511A (en) 1990-03-20

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