EP0233128B1 - Beschichteter Tennisschläger - Google Patents

Beschichteter Tennisschläger Download PDF

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Publication number
EP0233128B1
EP0233128B1 EP87420011A EP87420011A EP0233128B1 EP 0233128 B1 EP0233128 B1 EP 0233128B1 EP 87420011 A EP87420011 A EP 87420011A EP 87420011 A EP87420011 A EP 87420011A EP 0233128 B1 EP0233128 B1 EP 0233128B1
Authority
EP
European Patent Office
Prior art keywords
handle
frame
fibres
pieces
matrix
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
EP87420011A
Other languages
English (en)
French (fr)
Other versions
EP0233128A1 (de
Inventor
Gilles Du Gardin
Roger Macaire
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
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 filed Critical Skis Rossignol SA
Priority to AT87420011T priority Critical patent/ATE50916T1/de
Publication of EP0233128A1 publication Critical patent/EP0233128A1/de
Application granted granted Critical
Publication of EP0233128B1 publication Critical patent/EP0233128B1/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
    • 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
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • 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
    • A63B60/06—Handles
    • A63B60/14—Coverings specially adapted for handles, e.g. sleeves or ribbons
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
    • 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
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/04—Ethylene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/07—Glass fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/08—Urethane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/16—Acrylic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/23—High modulus filaments

Definitions

  • the invention relates to the field of rackets used for the practice of sports requiring the striking of an object, in particular a ball. It therefore particularly targets tennis rackets, squash, badminton, etc.
  • rackets many are those whose frame and handle are made of composite materials with fiber and synthetic resin layering.
  • braids of fibers are arranged around a flexible mandrel, inflatable or heat-deformable, and this fibrous reinforcement is impregnated by injection of resin under pressure.
  • the fiber braids extend over the entire length of the frame and the only structural discontinuities are constituted by possible local reinforcements.
  • the object of the invention is to provide a racket obtained economically, having an excellent weight / resistance ratio, and responding best to mechanical stresses.
  • the racket that it concerns, of the type formed by superimposing at least two braids of fibers impregnated with synthetic resin or by winding plies or fabrics of fibers impregnated with synthetic resin around a mandrel made of cellular material.
  • the frame constituting the core of the racket, the frame comprising a handle connected to the basket by two branches, the basket and the two branches forming the main frame of the frame which is produced by one or more elements, the handle and the frame elements main forming zones of the frame, which follow one another but are differentiated by the nature of the mandrel, is characterized in that these zones are also differentiated by the nature and / or the arrangement of the fibers enveloping each .
  • the connection of the two zones of the frame being made by local overlap of the envelopes of the mandrels, and in that in the zone of the handle, the stops of the two branches and of the mandrel of the handle are axially offset one relative to the other.
  • a racket frame according to the invention is produced with a lower material cost and an improved strength / weight ratio thanks to the judicious choice of the nature and orientation of the fibers according to the mechanical stresses specific to each region of the frame.
  • this racket frame is constituted by a basket 1, two branches 2, a point 3 and a handle 4.
  • the assembly 1, 2 forms the main frame of the frame.
  • connection between the various areas of the framework is effective. It is, in fact, produced by local overlapping of the windings of fibers from one zone of the frame to the other; this is the case in 13 for the connection of the basket 1 with the branches 2, in 14 for the connection of the bridge 3 with the basket 1 and the branches 2, and in 15 for the connection of the handle 4 with the branches 2.
  • This connection by overlapping and by the subsequent impregnation of resin can, moreover, be completed by an adhesive bonding, end to end, of the mandrels of the various parts of the frame.
  • connection between the handle 4 and the branches 2 is ensured by overlapping, over a few centimeters, of the braids 7 by the braids 11.
  • This connection by overlapping the textile plies 7 and 11 and by resin impregnation is advantageously completed by bonding. , butt to, of the mandrels 8 and 12.

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)
  • Moulding By Coating Moulds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polarising Elements (AREA)

Claims (7)

1. Rahmen für ein Racket für Tennis oder andere Spiele, der aus Schichtwerkstoff besteht und durch die Anordnung wenigstens zweier kunstharzgetränkter Fasergeflechte über einem die Racketseele bildenden Kern aus zellbildendem Werkstoff oder durch Umwickeln dieses Kerns mit kunstharzgetränkten Faserlagen oder -geweben gebildet ist,
wobei der Rahmen einen durch zwei Schenkel (2) mit dem Korb (1) verbundenen Griff (4) besitzt und der Korb (1) und die beiden Schenkel (2) das Hauptgestell des Rahmens (1, 2) bilden, der aus einem oder mehreren Elementen besteht,
und wobei der Griff und die Elemente des Hauptgestells Zonen des Rahmens bilden, die aneinander anschließen, die sich jedoch durch die Art des Kerns (8, 12) voneinander unterscheiden, dadurch gekennzeichnet,
daß diese Zonen sich außerdem durch die Art und/oder die Anordnung der jeden Kern umschließenden Fasern (7, 11) voneinander unterscheiden, wobei die Verbindung der beiden Zonen des Rahmens durch lokales Übergreifen der Umhüllungen der Kerne erfolgt,
und daß in der Zone des Griffs (4) die Endbereiche (17,18) der beiden Schenkel (2) und des Kerns (12) des Griffs (4) in axialer Richtung gegeneinander versetzt sind.
2. Racketrahmen nach Anspruch 1, dadurch gekennzeichnet, daß die Endbereiche (19, 20) der die Kerne (8) der beiden Schenkel (2) umschließenden Fasern (7); in der Zone des Griffs (4) ebenfalls in axialer Richtung gegeneinander versetzt sind.
3. Racketrahmen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß vier Zonen unterschiedlicher Anordnung vorgesehen sind, nämlich der Korb (1), die beiden Schenkel (2), die Brücke (3) und der Griff (4).
4. Racketrahmen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß drei Zonen unterschiedlicher Anordnung vorgesehen sind, nämlich der Korb (1) und die beiden Schenkel (2), die Brücke (3) und der Griff (4).
5. Racketrahmen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwei Zonen unterschiedlicher Anordnung vorgesehen sind, nämlich der Korb (1) und die beiden Schenkel (2) einerseits und der Griff (4) anderseits.
6. Racketrahmen nach Anspruch 3, dadurch gekennzeichnet, daß der Kern (6) des Korbs (1) aus Polyäthylenschaum, der Kern (8) der beiden Schenkel (2) aus halbsteifen Polyurethanschaum, der Kern (9) der Brücke (3) aus steifen Polyurethanschaum und der Kern (12) des Griffs aus Acrylschaum bestehen und daß die Fasern (5) der Umwicklung des Korbs (1) aus Kohlenstoff bestehen und eine Richtung a haben, die Fasern (7) der Unwicklung der beiden Schenkel (2) aus Glas und Kohlenstoff bestehen und mit der Längachse dieser Schenkel einen Winkel β bilden, die Fasern (9) der Umwicklung der Brücke (3) aus Glas und Kohlenstoff bestehen und mit der Längsachse der Brücke einen von dem vorgenannten Winkel abweichenden Winkel y bilden, und die Fasern der Umwicklung des Griffs (4) aus Glas bestehen und mit der Längsachse des Griffs einen Winkel 5 bilden.
7. Racketrahmen nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der Kern (8) des den Korb (1) und die beiden Schenkel (2) umfassenden Hauptgestells aus weichen Schaum, beispielsweise aus Polyäthylenschaum, besteht und einem weichen Kern bildet, der von drei aufeinanderfolgenden Faserschichten umgeben ist, einer zentralen Schicht (21) mit einem überwiegenden Anteil von Kohlenstoffasern, die zwischen zwei dünne, im wesentlichen aus Glasfasern bestehende Schichten (12, 23) gefaßt ist, und daß der Kern (12) des Griffs (4) aus steifen Schaum, beispielsweise aus Acrylschaum, besteht und von zwei dickwandigen Geflechten (24, 25) aus Glasfasern völlig überzogen ist, die die Endbereiche der drei Faserschichten des Hauptgestells lokal übergreifen.
EP87420011A 1986-01-13 1987-01-12 Beschichteter Tennisschläger Expired - Lifetime EP0233128B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420011T ATE50916T1 (de) 1986-01-13 1987-01-12 Beschichteter tennisschlaeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8600726A FR2592804B1 (fr) 1986-01-13 1986-01-13 Raquette de tennis en materiau stratifie
FR8600726 1986-01-13

Publications (2)

Publication Number Publication Date
EP0233128A1 EP0233128A1 (de) 1987-08-19
EP0233128B1 true EP0233128B1 (de) 1990-03-14

Family

ID=9331276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420011A Expired - Lifetime EP0233128B1 (de) 1986-01-13 1987-01-12 Beschichteter Tennisschläger

Country Status (7)

Country Link
US (1) US4725059A (de)
EP (1) EP0233128B1 (de)
JP (1) JPS62211078A (de)
AT (1) ATE50916T1 (de)
CA (1) CA1277687C (de)
DE (1) DE3761873D1 (de)
FR (1) FR2592804B1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826167A (en) * 1988-01-05 1989-05-02 Lo Pi Tuan Racket having a cushioning shaft portion
AT393967B (de) * 1989-09-11 1992-01-10 Head Sportgeraete Gmbh Ballschlaeger, insbesondere tennisschlaeger
FR2656537B1 (fr) * 1990-01-02 1993-05-28 Jeanrot Patrick Raquette comportant un manche injecte et son procede de realisation.
FR2673381B1 (fr) * 1991-02-28 1994-05-06 Rossignol Sa Skis Raquette a asymetrie longitudinale.
AU635417B2 (en) * 1991-04-24 1993-03-18 Chin-San You A sports racket frame
US5071125A (en) * 1991-05-08 1991-12-10 Walter Shen Racket
US5155896A (en) * 1991-08-20 1992-10-20 Pai Chin Dong Method of manufacturing the throat portion of an aluminum racket
US5303917A (en) * 1992-04-13 1994-04-19 Uke Alan K Bat for baseball or softball
US5310516A (en) * 1992-05-06 1994-05-10 Walter Shen Method of making a composite racket
FR2691074A1 (fr) * 1992-05-14 1993-11-19 Rossignol Sa Raquette de tennis ou analogue.
US5175919A (en) * 1992-05-20 1993-01-05 Lo Kun Nan Method for manufacturing a racket frame
US5273279A (en) * 1992-06-17 1993-12-28 You Chin San Racket frame of plastic compound material
US5445382A (en) * 1993-01-26 1995-08-29 Edo Sports, Inc. Golf club head of entangled fiber reinforced plastic
JPH06315547A (ja) * 1993-03-09 1994-11-15 Yamaha Corp テニス用ラケットフレーム
US5368298A (en) * 1994-01-07 1994-11-29 You; Chin-San Game racket of composite material
US6422958B1 (en) * 1994-02-24 2002-07-23 David W. Repetto Frame for a game racquet formed by filament winding
US5423533A (en) * 1994-03-28 1995-06-13 Hsu; Henry Y. C. Game racket of composite material
BE1008451A3 (nl) * 1994-05-19 1996-05-07 Yamipa Consulting Bv Racket en werkwijze voor het vervaardigen van zulke racket.
US5562283A (en) * 1995-05-11 1996-10-08 Prince Sports Group, Inc. Sports racquet having power ring
US5913740A (en) * 1997-07-25 1999-06-22 Miklos; Edward J. Flat beam aerodynamic tennis racquet
US6447412B1 (en) 2000-04-18 2002-09-10 Ef Composite Technologies, L.P. Sports racket with undulations in frame interior surface
US20020090874A1 (en) * 2000-09-08 2002-07-11 Mckague Elbert L. Unitized fastenerless composite structure
US6663515B1 (en) * 2002-08-15 2003-12-16 Chin-Dong Pai Racket with a head and a handle both made of different materials
US20050043123A1 (en) * 2003-08-22 2005-02-24 Harvey Charles M. Lacrosse stick
US7736251B2 (en) * 2004-07-26 2010-06-15 Quikstick Lacrosse, Llc Lacrosse stick
GB2438173A (en) * 2006-05-15 2007-11-21 Dunlop Slazenger Group Ltd Racquet frame
DE102008064385B4 (de) 2008-12-22 2011-05-05 Head Technology Gmbh Ballspielschläger
US20180229092A1 (en) * 2017-02-13 2018-08-16 Cc3D Llc Composite sporting equipment
US11975250B1 (en) * 2020-04-30 2024-05-07 Wm. T. Burnett Ip, Llc Unitary lacrosse stick and method for making

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344235A (en) * 1976-10-04 1978-04-20 Nippon Gakki Seizo Kk Racket frame and method of manufacturing the same
EP0025126B1 (de) * 1979-08-24 1983-03-09 Dunlop Limited Schlägerrahmen
US4399992A (en) * 1980-03-10 1983-08-23 Questor Corporation Structural member having a high strength to weight ratio and method of making same
FR2496470A1 (fr) * 1980-12-22 1982-06-25 Guyot Michel Cadre de raquette, en particulier pour jeu de tennis, en matiere synthetique polymerisee armee de fibres resistantes, et son procede de fabrication

Also Published As

Publication number Publication date
US4725059A (en) 1988-02-16
ATE50916T1 (de) 1990-03-15
JPS62211078A (ja) 1987-09-17
FR2592804B1 (fr) 1989-04-07
CA1277687C (fr) 1990-12-11
FR2592804A1 (fr) 1987-07-17
DE3761873D1 (de) 1990-04-19
EP0233128A1 (de) 1987-08-19

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