EP0340127B1 - Tennisschläger - Google Patents

Tennisschläger Download PDF

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Publication number
EP0340127B1
EP0340127B1 EP89420150A EP89420150A EP0340127B1 EP 0340127 B1 EP0340127 B1 EP 0340127B1 EP 89420150 A EP89420150 A EP 89420150A EP 89420150 A EP89420150 A EP 89420150A EP 0340127 B1 EP0340127 B1 EP 0340127B1
Authority
EP
European Patent Office
Prior art keywords
racket
branches
section
basket
level
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
EP89420150A
Other languages
English (en)
French (fr)
Other versions
EP0340127A1 (de
Inventor
Annie Blanc née Faure
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 AT89420150T priority Critical patent/ATE60242T1/de
Publication of EP0340127A1 publication Critical patent/EP0340127A1/de
Application granted granted Critical
Publication of EP0340127B1 publication Critical patent/EP0340127B1/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
    • 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
    • A63B49/10—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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B2049/0211—Frames with variable thickness of the head in a direction perpendicular to the string plane
    • 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
    • A63B2049/0217—Frames with variable thickness of the head in the string plane

Definitions

  • the present invention relates to a ball game racket, more particularly intended for the game of tennis, and more specifically to a racket of this type made of composite material, based on a fibrous reinforcement and a matrix of organic material. (epoxy resin for example).
  • the document EP-A-0 176 021 relates, for example, to a cross-section tennis racket. variable, which is designed to optimize the bouncing effect of the bale by tuning the frame's oscillation frequency to the beating frequency of the bale.
  • This racket has a thickness (taken in the orthoganol direction to the plane of the racket) which is variable and which is maximum at the branches, this thickness being moreover than that of the handle.
  • the rackets obtained are very rigid, so that if they are likely to be appreciated by very good players, they are less suitable for beginners because of their low tolerance for decentering the point of impact of the ball. It should also be noted that the racket obtained may appear unsightly to some users, rather inclined to acquire a racket of fine appearance, and therefore rather elegant.
  • the invention relates to a tennis racket, and more particularly a racket made of composite material, the frame of which is of variable section, and which, while retaining a fine and elegant external appearance, is shaped to minimize the risks of frame rupture. , while optimizing the qualities of play and remaining in a range accessible to the general public, that is to say not specially reserved for elite players.
  • the section of the frame of this racket is, as mentioned above, variable along the branches and the basket. However, this section maintains a constant perimeter all along these branches and this basket. In addition, this section is of thickness which is less than that of the handle and which is maximum in the respective median zones of the lateral parts of the basket. In this last zone, the width of this same section is minimal (it should be recalled that the height of the frame in the direction orthogonal to the plane of the racket is called “thickness", and "width" that of the section of the frame taken in the plane of the racket). Finally, the frame is provided without an external groove for passage of the cords and, therefore, has a section whose external face is strictly convex over its entire length.
  • this tennis racket is composed of a handle, or handle, 1 which is extended by two branches 2,3 which carry the basket 4, the lower part of which forms the bridge 5.
  • the basket 4 carries , itself the sieve 6, composed of longitudinal and transverse strings and forming the striking surface.
  • the thickness e of the frame of this racket is less than the thickness E of the handle 1.
  • the section S of this frame is variable along the branches 2,3 and the basket 4, the perimeter of this section S however remaining constant along these branches and this basket.
  • the thickness e of this Section S is maximum in the median zone (respectively 7 and 8) of the two lateral parts of the basket 4.
  • the section S in this zone is visible in FIG. 4.
  • the width L of the variable section S is minimal, while the ratio e / L is maximum and equal to 2.2 in this example, so that the section S has a rather elongated appearance in the direction of the thickness e.
  • the thickness e of the section S is minimal, while its width L is maximum, as can be seen in FIG. 7: in these zones, the section S looks rather massive, the e / L ratio being minimal, and equal to 1.53 in this example.
  • the section of the frame at the level of the head 9 of the basket is represented in FIG. 6.
  • the aforementioned e / L value has a value which constitutes substantially the average center that at the median lateral zones (FIG. 4) and that at the branches ( Figure 7): in this specific example, this e / L ratio at the top of the frame is equal to 1.82.
  • FIG. 5 shows for example the section of the basket in zones 10 and 11 which make the transition between the median lateral zones 7,8 and the head zone 9 on the one hand, and between these same zones 7,8 and the branches 2.3 on the other hand.
  • the invention is not limited to the embodiment which has just been described, and is on the contrary capable of being produced in multiple, equivalent forms. It obviously applies to ball rackets which are from the same family as tennis rackets, such as squash or badmington rackets.
  • the aforementioned ratio L is between 2 and 2.5 at the level of the median lateral zones 7.8, is between 1.3 and 1.6 at the level of the branches 2.3, and is between 1.6 and 2 at head 9.

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)
  • Polarising Elements (AREA)
  • Prostheses (AREA)
  • Tires In General (AREA)

Claims (5)

1. Schläger für Ballspiele, insbesondere für das Tennisspiel, bestehend aus einem Verbundmaterial auf Basis einer Faserverstärkung und einer Matrize aus organischem Material, dieser Schläger umfassend einen Rahmen mit zwei Armen (2,3) und einem Schlägerkopf (4), der die die Schlagfläche bildende Bespannung (6) trägt, wobei der Querschnitt (S) des Rahmens über die Länge der Arme (2,3) und des Schlägerkopfes (4) variiert, dadurch gekennzeichnet, daß dieser Querschnitt einen über die Länge der Arme (2,3) und des Schlägerkopfes (4) gleichbleibenden Umfang behält und daß seine Dicke (e) kleiner ist als die des Griffes (1) des Schlägers und am größten in den jeweiligen Mittenbereichen (7,8) der Seitenabschnitte des Schlägerkopfes (4) ist.
2. Schläger nach Anspruch 1, dadurch gekennzeichnet, daß sein Rahmen keine äußere Vertiefung für den Durchgang der Saiten umfaßt.
3. Schläger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dicke (e) in den Bereichen der Arme (2,3) am kleinsten ist.
4. Schläger nach Anspruch 3, dadurch gekennzeichnet, daß in Höhe des oberen Endes (9) des Rahmens dans Verhältnis (e/L) zwischen der Dicke (e) und der Breite (L) dieses Querschnitts (S) ungefähr gleich dem Mittelwert zwischen diesem Verhältnis in Höhe der mittleren Seitenbereiche (7,8) des Schlägerkopfes (4) und in Höhe der Arme (2,3) ist.
5. Schläger nach Anspruch 4, dadurch gekennzeichnet, daß dieses Verhältnis (e/L) zwischen 2 und 2,5 in Höhe der mittleren Seitenbereiche (7,8), zwischen 1,3 und 1,6 in Höhe der Arme (2,3) und zwischen 1,6 und 2 in Höhe des oberen Endes (9) ist.
EP89420150A 1988-04-26 1989-04-25 Tennisschläger Expired - Lifetime EP0340127B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420150T ATE60242T1 (de) 1988-04-26 1989-04-25 Tennisschlaeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806066A FR2630336B1 (fr) 1988-04-26 1988-04-26 Raquette de tennis
FR8806066 1988-04-26

Publications (2)

Publication Number Publication Date
EP0340127A1 EP0340127A1 (de) 1989-11-02
EP0340127B1 true EP0340127B1 (de) 1991-01-23

Family

ID=9366040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420150A Expired - Lifetime EP0340127B1 (de) 1988-04-26 1989-04-25 Tennisschläger

Country Status (5)

Country Link
US (1) US5110125A (de)
EP (1) EP0340127B1 (de)
AT (1) ATE60242T1 (de)
DE (1) DE68900028D1 (de)
FR (1) FR2630336B1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2649899B1 (fr) * 1989-07-19 1992-05-22 Rossignol Sa Raquette de tennis
AT393967B (de) * 1989-09-11 1992-01-10 Head Sportgeraete Gmbh Ballschlaeger, insbesondere tennisschlaeger
US5540434A (en) * 1990-08-21 1996-07-30 Wilson Sporting Goods Co. Tennis racket
DE4037568A1 (de) * 1990-11-26 1992-05-27 Donnay Int Sa Tennisschlaeger
GB9120585D0 (en) * 1991-09-27 1991-11-06 Dunlop Ltd Games racket frame
US5306004A (en) * 1992-11-12 1994-04-26 Soong Tsai C Sports rackets having all strings dampened for vibration
US5312102A (en) * 1993-02-04 1994-05-17 Lisco, Inc. Variable inertia head racket
US5368295A (en) * 1993-06-02 1994-11-29 Wilson Sporting Goods Co. Tennis racket
EP0687486A1 (de) * 1994-06-15 1995-12-20 Head Sport Aktiengesellschaft Ballschläger
USD369194S (en) 1994-10-13 1996-04-23 Wilson Sporting Goods Co. Tennis racquet
US5562283A (en) * 1995-05-11 1996-10-08 Prince Sports Group, Inc. Sports racquet having power ring
GB0319259D0 (en) * 2003-08-15 2003-09-17 Imp College Innovations Ltd Tennis racket
US7806789B2 (en) * 2007-05-03 2010-10-05 John L Sledge Sports racket

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191102205A (en) * 1911-01-28 1911-10-12 Carl Oscar Uner Improvements in Tennis Racquets and the like.
US2171223A (en) * 1937-12-02 1939-08-29 Roy H Robinson Racket for tennis and batting games and method of manufacturing same
FR2195163A5 (de) * 1972-08-02 1974-03-01 Martel Rene
US4291574A (en) * 1976-01-05 1981-09-29 Frolow Jack L Tennis racket
CH616849A5 (en) * 1976-09-20 1980-04-30 Peter Zimmerli Metal frame for rackets, in particular for tennis, badminton or squash rackets
JPS5344235A (en) * 1976-10-04 1978-04-20 Nippon Gakki Seizo Kk Racket frame and method of manufacturing the same
US4662634A (en) * 1984-05-31 1987-05-05 Chris Development Corporation Tennis racket with convex throat
US4561655A (en) * 1984-06-14 1985-12-31 Ektelon Tubular steel racquet frame having varying cross-section
ZA852092B (en) * 1984-07-31 1985-11-27 Cons Sporting Goods Tapered racquet
US4768786A (en) * 1986-10-17 1988-09-06 Siegfried Kuebler Tennis racket
JPH0429624Y2 (de) * 1987-11-17 1992-07-17
JPH0429621Y2 (de) * 1988-01-23 1992-07-17

Also Published As

Publication number Publication date
DE68900028D1 (de) 1991-02-28
EP0340127A1 (de) 1989-11-02
ATE60242T1 (de) 1991-02-15
US5110125A (en) 1992-05-05
FR2630336A1 (fr) 1989-10-27
FR2630336B1 (fr) 1990-07-13

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