EP0340127A1 - Tennisschläger - Google Patents
Tennisschläger Download PDFInfo
- Publication number
- EP0340127A1 EP0340127A1 EP89420150A EP89420150A EP0340127A1 EP 0340127 A1 EP0340127 A1 EP 0340127A1 EP 89420150 A EP89420150 A EP 89420150A EP 89420150 A EP89420150 A EP 89420150A EP 0340127 A1 EP0340127 A1 EP 0340127A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- racket
- section
- branches
- frame
- basket
- 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
Links
Images
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 playing qualities of a racket are determined by a fairly large number of criteria which can generally be classified into two categories: - performance criteria: performance, nervousness, stiffness, etc; - the player's comfort criteria: softness, maneuverability, etc.
- the document EP-A-0 176 021 relates for example to a tennis racket with a section frame. 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 direction orthogonal 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. On the other hand, this section keeps 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 of 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 central 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 shape 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 between 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 quite 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 e / L ratio is between 2 and 2.5 at the median lateral zones 7.8, is between 1.3 and 1.6 at 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)
- Tires In General (AREA)
- Polarising Elements (AREA)
- Prostheses (AREA)
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 |
---|---|---|---|
FR8806066 | 1988-04-26 | ||
FR8806066A FR2630336B1 (fr) | 1988-04-26 | 1988-04-26 | Raquette de tennis |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0340127A1 true EP0340127A1 (de) | 1989-11-02 |
EP0340127B1 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) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991003283A1 (de) * | 1989-09-11 | 1991-03-21 | Head Sportgeräte Gesellschaft M.B.H. & Co. Ohg | Ballschläger, insbesondere tennisschläger |
EP0477533A1 (de) * | 1990-08-21 | 1992-04-01 | Wilson Sporting Goods Company | Tennisschläger |
US5211691A (en) * | 1990-11-26 | 1993-05-18 | Donnay International S.A. | Tennis rackets |
EP0601701A2 (de) * | 1992-11-12 | 1994-06-15 | Tsai Chen Soong | Sportschläger, an dem alle Saiten schwingungsgedämpft sind |
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 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2649899B1 (fr) * | 1989-07-19 | 1992-05-22 | Rossignol Sa | Raquette de tennis |
GB9120585D0 (en) * | 1991-09-27 | 1991-11-06 | Dunlop Ltd | Games racket frame |
US5312102A (en) * | 1993-02-04 | 1994-05-17 | Lisco, Inc. | Variable inertia head racket |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 | |
EP0171500A2 (de) * | 1984-07-31 | 1986-02-19 | Consolidated Sporting Goods Pty. Limited | Schlägerramen mit verringernder Dicke |
Family Cites Families (9)
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. |
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 |
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 |
-
1988
- 1988-04-26 FR FR8806066A patent/FR2630336B1/fr not_active Expired - Fee Related
-
1989
- 1989-04-25 AT AT89420150T patent/ATE60242T1/de not_active IP Right Cessation
- 1989-04-25 DE DE8989420150T patent/DE68900028D1/de not_active Expired - Fee Related
- 1989-04-25 EP EP89420150A patent/EP0340127B1/de not_active Expired - Lifetime
-
1991
- 1991-02-20 US US07/658,440 patent/US5110125A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 | |
EP0171500A2 (de) * | 1984-07-31 | 1986-02-19 | Consolidated Sporting Goods Pty. Limited | Schlägerramen mit verringernder Dicke |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991003283A1 (de) * | 1989-09-11 | 1991-03-21 | Head Sportgeräte Gesellschaft M.B.H. & Co. Ohg | Ballschläger, insbesondere tennisschläger |
US5183265A (en) * | 1989-09-11 | 1993-02-02 | Head Sportgerate Gesellschaft M.B.H. & Co. Ohg | Racquets, in particular tennis racquets |
EP0477533A1 (de) * | 1990-08-21 | 1992-04-01 | Wilson Sporting Goods Company | Tennisschläger |
US5540434A (en) * | 1990-08-21 | 1996-07-30 | Wilson Sporting Goods Co. | Tennis racket |
US5211691A (en) * | 1990-11-26 | 1993-05-18 | Donnay International S.A. | Tennis rackets |
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. |
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 |
Also Published As
Publication number | Publication date |
---|---|
US5110125A (en) | 1992-05-05 |
FR2630336A1 (fr) | 1989-10-27 |
EP0340127B1 (de) | 1991-01-23 |
DE68900028D1 (de) | 1991-02-28 |
ATE60242T1 (de) | 1991-02-15 |
FR2630336B1 (fr) | 1990-07-13 |
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