FR2569989A1 - RACKET TO PLAY - Google Patents
RACKET TO PLAY Download PDFInfo
- Publication number
- FR2569989A1 FR2569989A1 FR8513191A FR8513191A FR2569989A1 FR 2569989 A1 FR2569989 A1 FR 2569989A1 FR 8513191 A FR8513191 A FR 8513191A FR 8513191 A FR8513191 A FR 8513191A FR 2569989 A1 FR2569989 A1 FR 2569989A1
- Authority
- FR
- France
- Prior art keywords
- racket
- vibration damping
- damping element
- vibration
- shaft
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 4
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 4
- 230000001413 cellular effect Effects 0.000 claims abstract description 3
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 3
- 229920001194 natural rubber Polymers 0.000 claims abstract description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 3
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 claims abstract 2
- 239000005060 rubber Substances 0.000 claims abstract 2
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- A63B49/08—Frames with special construction of the handle
-
- 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
- A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits
Abstract
L'INVENTION CONCERNE UNE RAQUETTE POUR JOUER. LA RAQUETTE EST POURVUE D'UN ELEMENT D'AMORTISSEMENT DE VIBRATIONS 20 FORME D'UN MATERIAU DEFORMABLE PAR HYSTERESIS QUI EST PLACE SUR LA TIGE DE MANCHE ET, DANS LE CAS D'UNE RAQUETTE A DEUX TIGES, QUI PEUT ETRE FIXE ENTRE CES TIGES 11A ET 11B A MOINS DE 50MM DE PART ET D'AUTRE DU CENTRE DE GRAVITE CG DE LA RAQUETTE; IL PEUT SE PRESENTER SOUS LA FORME D'UNE BARRE OU CYLINDRE ALLONGE CONSTITUE DE CAOUTCHOUC NATUREL OU SYNTHETIQUE, OU BIEN D'UN MATERIAU ANALOGUE A DU CAOUTCHOUC, OU BIEN D'UN MATERIAU CELLULAIRE COMME DE LA MOUSSE DE POLYURETHANE. APPLICATION AU TENNIS.THE INVENTION RELATES TO A RACKET FOR PLAYING. THE RACQUET IS PROVIDED WITH A 20 VIBRATION DAMPING ELEMENT IN THE FORM OF A HYSTERESIS DEFORMABLE MATERIAL THAT IS PLACED ON THE SHAFT SHAFT AND, IN THE CASE OF A TWO-SHAFT RACKET, WHICH CAN BE FIXED BETWEEN THESE SHAFTS 11A AND 11B AT LESS THAN 50MM ON EACH OTHER OF THE CG CENTER OF GRAVITY OF THE RACKET; IT MAY BE IN THE FORM OF AN ELONGATED BAR OR CYLINDER CONSISTING OF NATURAL OR SYNTHETIC RUBBER, OR OF A MATERIAL ANALOGUE TO RUBBER, OR OF A CELLULAR MATERIAL SUCH AS POLYURETHANE FOAM. APPLICATION TO TENNIS.
Description
La présente invention concerne une raquette pour jouer et en particulierThe present invention relates to a racket for playing and in particular
une raquette pourvue d'una racket equipped with a
élément d'amortissement de vibrations. vibration damping element.
La présente invention a pour but de créer une raquette dans laquelle un élément d'amortissement de vibra- tions, constitué d'un matériau déformable par hystérésis, est placé sur la tige de manche de la raquette, à moins de mm d'un côté ou de l'autre du centre de gravité de la raquette. Dans un mode de réalisation de l'invention, la raquette comporte une seule tige de manche et l'élément It is an object of the present invention to provide a racket in which a vibration damping member, made of a hysteresis deformable material, is placed on the handle shaft of the racket, within one mm of a side or the other center of gravity of the racket. In one embodiment of the invention, the racket comprises a single handle shaft and the element
d'amortissement de vibrations est fixé sur cette tige. vibration damping is attached to this rod.
En variante, l'élément d'amortissement de vibrations peut être moulé autour de la tige de manche, par exemple Alternatively, the vibration damping element may be molded around the handle shaft, for example
par moulage par injection.by injection molding.
Dans un second mode de réalisation de la présen- In a second embodiment of the present
te invention, la raquette comporte deux tiges de manche et l'élément d'amortissement de vibrations est fixé entre les deux tiges. La fixation de l'élément d'amortissement de vibrations peut être réalisée par emmanchement par friction In the invention, the racket has two handle rods and the vibration damping element is fixed between the two rods. The fixing of the vibration damping element can be carried out by friction fitting
entre les tiges de manche, avec ou sans l'aide d'un adhésif. between the sticks, with or without the aid of an adhesive.
L'élément d'amortissement de vibrations peut être constitué de caoutchouc naturel ou synthétique ou bien d'un matériau analogue au caoutchouc. En variante, l'élément d'amortissement de vibrations peut être formé d'un matériau The vibration damping element may be made of natural or synthetic rubber or a rubber-like material. Alternatively, the vibration damping element may be formed of a material
cellulaire, par exemple une mousse de polyuréthane. cellular, for example a polyurethane foam.
Avantageusement, l'élément d'amortissement de vibrations se présente sous la forme d'une barre allongée Advantageously, the vibration damping element is in the form of an elongated bar
ou d'un cylindre allongé.or an elongated cylinder.
Le poids maximal de l'élément d'amortissement The maximum weight of the damping element
de vibrations conforme à la présente invention est de 10 g. vibration according to the present invention is 10 g.
Conformément à l'invention, on a trouvé que l'élément d'amortissement de vibrations peut réduire l'effet de vibration produit dans la raquette lors d'un impact avec une balle en faisant en sorte que la vibration soit atténuée plus rapidement que si l'élément d'amortissement n'était According to the invention, it has been found that the vibration damping element can reduce the vibration effect produced in the racket during impact with a ball by causing the vibration to be attenuated more rapidly than if the depreciation item was
pas présent.not here.
D'autres caractéristiques et avantages de la présente invention seront mis en évidence dans la Other features and advantages of the present invention will be highlighted in the
suite de la description; donnée à titre d'exemple non following the description; given as an example no
limitatif, en référence aux dessins annexes dans lesquels: - la figure 1 est une vue schématique d'une raquette équipée d'un élément d'amortissement de vibrations conforme à l'invention; - la figure 2 montre, au moyen de courbes de vibrations comparatives, l'atténuation des vibrations après impact d'une balle sur la raquette de la figure 1, avec et sans l'élément d'amortissement de vibrations de la présente invention. En référence à la figure 1, la raquette comprend une partie-tête 10 (représentée seulement en partie) et une partie-manche se composant de deux tiges minces llA et 118. Un élément d'amortissement de vibrations 20, formé de mousse de polyuréthane et pesant 2,0 g, est fixé entre les tiges 11 A et 11B de manière à s'étendre sur une distance approximativement égale de part et d'autre du centre de gravité de la raquette (représenté par la ligne en trait limiting, with reference to the accompanying drawings in which: - Figure 1 is a schematic view of a racket equipped with a vibration damping element according to the invention; FIG. 2 shows, by means of comparative vibration curves, the attenuation of the vibrations after the impact of a bullet on the racket of FIG. 1, with and without the vibration damping element of the present invention. Referring to Figure 1, the racket comprises a head portion 10 (shown only in part) and a handle portion consisting of two thin rods 11A and 118. A vibration damping member 20, formed of polyurethane foam and weighing 2.0 grams, is attached between the rods 11A and 11B so as to extend an approximately equal distance on either side of the center of gravity of the paddle (represented by the line in the line
mixte CG).mixed CG).
L'atténuation des vibrations lors d'un impact *25 d'une balle sur la raquette a été testée avant et après la fixation de l'élément d'amortissement de vibrations et les The attenuation of vibrations during a ball impact on the racket was tested before and after the attachment of the vibration damping element and the
résultats sont indiqués sur la figure 2. Results are shown in Figure 2.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB848422666A GB8422666D0 (en) | 1984-09-07 | 1984-09-07 | Games rackets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2569989A1 true FR2569989A1 (en) | 1986-03-14 |
Family
ID=10566416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8513191A Pending FR2569989A1 (en) | 1984-09-07 | 1985-09-05 | RACKET TO PLAY |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS6168068A (en) |
| DE (1) | DE3531861A1 (en) |
| FR (1) | FR2569989A1 (en) |
| GB (2) | GB8422666D0 (en) |
| ZA (1) | ZA856500B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9009831D0 (en) * | 1990-05-02 | 1990-06-27 | Dunlop Ltd | Games racket frame |
| US5236198A (en) * | 1990-05-02 | 1993-08-17 | Dunlop Limited | Games racket frame |
| US5178387A (en) * | 1990-07-27 | 1993-01-12 | Siegfried Kuebler | Racket for ball games, in particular a tennis racket |
| US5524884A (en) * | 1991-07-18 | 1996-06-11 | Dunlop Limited | Striking implements |
| TW286290B (en) * | 1992-07-16 | 1996-09-21 | Minnesota Mining & Mfg | |
| JP2003070937A (en) * | 2001-08-31 | 2003-03-11 | Sumitomo Rubber Ind Ltd | Racket frame |
| CN210933658U (en) * | 2019-06-26 | 2020-07-07 | 南京工程学院 | Superstructure damping tennis racket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB447638A (en) * | 1935-03-05 | 1936-05-22 | Baker Macpherson & Company Ltd | Improvements in implement handles |
| DE2338534A1 (en) * | 1972-07-31 | 1974-02-14 | Patentex Sa | TENNIS RACKETS, BASEBALL RACKETS, AND SIMILAR DEVICES |
| EP0074094A2 (en) * | 1981-09-04 | 1983-03-16 | Kneissl International GmbH | Balancing device for a tennis racket |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB594310A (en) * | 1944-12-28 | 1947-11-07 | Horace Henry Kent | Game racket |
| GB429666A (en) * | 1933-11-09 | 1935-06-04 | Charles Aristide Viriot | Improvements in tools and instruments consisting of a handle and a striking mass |
| FR1473356A (en) * | 1966-02-21 | 1967-03-17 | Tennis racket | |
| FR2211857A5 (en) * | 1972-12-26 | 1974-07-19 | Carpano & Pons | |
| US4005864A (en) * | 1974-11-06 | 1977-02-01 | Stewart Samuel F | Racket weighting means |
| JPS5213455A (en) * | 1975-07-24 | 1977-02-01 | Nippon Kokan Kk | Method of shape control for thin plate rolling |
| FR2352220A1 (en) * | 1976-05-21 | 1977-12-16 | Malnar Leon | Vibration damping for tennis rackets - uses hollow frame filled with natural or synthetic shock absorbent |
| JPS52156031A (en) * | 1976-06-21 | 1977-12-26 | Kawasaki Racket Kogyo | Apparatus for absorbing vibration of tennis racket |
| US4205844A (en) * | 1978-02-01 | 1980-06-03 | Gombas Laszlo A | Game racket |
| EP0080797A3 (en) * | 1981-11-27 | 1984-03-07 | Kun Nan Lo | Metal racket frame |
-
1984
- 1984-09-07 GB GB848422666A patent/GB8422666D0/en active Pending
-
1985
- 1985-08-14 GB GB08520364A patent/GB2163963A/en not_active Withdrawn
- 1985-08-27 ZA ZA856500A patent/ZA856500B/en unknown
- 1985-09-02 JP JP60193679A patent/JPS6168068A/en active Pending
- 1985-09-05 FR FR8513191A patent/FR2569989A1/en active Pending
- 1985-09-06 DE DE19853531861 patent/DE3531861A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB447638A (en) * | 1935-03-05 | 1936-05-22 | Baker Macpherson & Company Ltd | Improvements in implement handles |
| DE2338534A1 (en) * | 1972-07-31 | 1974-02-14 | Patentex Sa | TENNIS RACKETS, BASEBALL RACKETS, AND SIMILAR DEVICES |
| EP0074094A2 (en) * | 1981-09-04 | 1983-03-16 | Kneissl International GmbH | Balancing device for a tennis racket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6168068A (en) | 1986-04-08 |
| GB8520364D0 (en) | 1985-09-18 |
| GB2163963A (en) | 1986-03-12 |
| DE3531861A1 (en) | 1986-03-20 |
| GB8422666D0 (en) | 1984-10-10 |
| ZA856500B (en) | 1987-04-29 |
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