EP0076203A1 - Training device for a tennis player - Google Patents

Training device for a tennis player Download PDF

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Publication number
EP0076203A1
EP0076203A1 EP82401714A EP82401714A EP0076203A1 EP 0076203 A1 EP0076203 A1 EP 0076203A1 EP 82401714 A EP82401714 A EP 82401714A EP 82401714 A EP82401714 A EP 82401714A EP 0076203 A1 EP0076203 A1 EP 0076203A1
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EP
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Prior art keywords
player
racket
obstacle
telescopic rod
harness
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EP82401714A
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German (de)
French (fr)
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EP0076203B1 (en
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Pierre Erick Gilly
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/38—Training appliances or apparatus for special sports for tennis

Definitions

  • the invention aims to create a training device capable of giving the player immediate information on how he performs the different strokes of tennis.
  • Such a device allowing the player to control the technical quality of his gestures even during the execution of the strokes, is according to the invention characterized in that it comprises an object capable of constituting an obstacle for the racket of the player, this object being mounted on an adjustable frame rigidly fixed in the player's back and allowing the object to be placed in a position close to that which the racket must come to take at one end of its stroke during the execution of a determined stroke .
  • the device according to the invention therefore provides the player, with whom it forms part, a reference element cons staggered by the aforementioned object, which allows him to realize with each stroke played if he has correctly or not maneuvered his racket.
  • the latter hitting the obstacle gives the player an immediate and concrete sensation which indicates to him whether his gesture is correct, or too high, too low, too short, too wide, too early or too late vis-à-vis the ball to send back, without the slightest doubt can remain in his mind.
  • it can even provide information on the angle of inclination of the racket plane.
  • the player is thus "physically” aware of his exact gestures at the very moment when he performs them, which is much more beneficial to him than the late observation of his image recorded on a video recorder.
  • the device according to the invention is simple and inexpensive. It is light and its presence does not hinder the player, who retains all his freedom of play. Normally used on a tennis court, it can also be at home to work the execution of such or such movement and acquire by l '' training an almost automatic ability to execute different tennis strokes (shadow-tennis).
  • the position of the obstacle object can be adjusted in order to control the position either of preparation or of finishing shots. It can be placed both on the right and on the left of the player, depending on the genre of moves to be studied. Its position can be changed gradually to gradually correct a player's faults on a particular move.
  • the frame thereof comprises a telescopic rod bent in the region of its ends and orientable around its end of attachment to the dorsal region of a worn harness by the player, while at the other end is fixed the aforementioned object.
  • this harness is simply constituted by a wide abdominal belt, which forms a stable support for said telescopic rod without creating any obstacle to the movements of the player.
  • said telescopic rod preferably attached to the harness by means of a lockable ball joint, is advantageously formed of two rectilinear segments which can slide and rotate one inside the other and be mutually locked in the chosen position.
  • the length of the rod and the orientation of the obstacle object fixed at its end can thus be easily adjusted.
  • the latter preferably has a flexible structure.
  • it can be designed either to constitute an obstacle which cannot be crossed by the racket, or to constitute an obstacle which can be crossed by the racket, then giving the player an indication relating to the position of his racket, but without preventing it from continuing its movement backwards.
  • the object can be a simple block of elastic material, for example in the form of a rectangular panel or ball, firmly fixed on its support frame.
  • it can be produced in the form of a flexible stick arranged in a substantially vertical plane and preferably directed downwards.
  • a device according to the invention can be double and include a second frame carrying a second object with an adjustable position independently of that of the first object, these complementary elements being formed and arranged in the manner previously described. The player then simultaneously has two obstacle objects which allow him to study the execution of two kinds of moves in the same exercise phase.
  • the device given as an example essentially comprises a support constituted by a wide abdominal belt 1 and a rigid telescopic rod 2, which can be oriented practically in all directions thanks to a ball joint 3 which connects one end to the center of the dorsal part 1a of the belt 1, while its other end carries an object 9 of flexible material, capable of obstructing the tennis racket of a player equipped with the device.
  • the belt 1 made of leather or plastic, has lateral portions 1b of elastic fabric and is closed by means of fittings 1c of the "Velcro" type.
  • the ball 3a thereof which can be locked in any desired position by maneuvering a threaded ring 3b, is integral with the end of the first tubular segment 2a of the telescopic rod 2, bent at right angles to 6 at a short distance from the ball joint 3a.
  • the second segment 2b of said rod also tubular and bent at a right angle at 7 near its end, can turn and slide in the first segment and be locked there in any desired position by means of a knurled screw 8 (an eccentric roller locking system could also be used here, which is easier to handle).
  • the aforementioned flexible material object namely a thick rectangular panel 9 of plastic foam, by means of a short connecting rod 4.
  • the object can also be ( figure 2) a ball 9 'of flexible plastic foam, or alternatively (figure 4) a flexible stick 9 ", preferably wrapped in an elastic foam sheath.
  • Figures 3 and 4 show two examples of the use of a device according to the invention worn by a player after having tightened around his waist the belt 1, the rod 2 projecting laterally in his back.
  • the device is adjusted for the study of punt shots; it is provided with a panel 9 arranged in a substantially frontal plane, the terminal elbow 7 of the rod 2 being oriented towards the front.
  • This panel constitutes a stop defining the correct position of the racket 11 of the player at the end of preparation, which is in principle adjusted so as not to be touched by the racket.
  • a contact immediately warns the player that he is sending his racket 11 too far back.
  • the device provided with a flexible stick 9 ", is adjusted for the study of the forehand.
  • the stick 9" is oriented downwards substantially in a vertical plane, the elbow 7 being turned for this purpose down.
  • the stick 9 "constitutes, unlike the objects 9 and 9 ', an obstacle which can be crossed by the racket 11, at the passage of which it is erased by bending, so that it can come into a more remote end position 11' , while the player was warned by momentary contact with the 9 "stick that his racket was arriving in the correct position.
  • the rod 2 of the device is, in Figures 3 and 4, oriented to the right of the player. It can just as well be oriented to its left, for the study of backhands.
  • the different settings of the device can be identified by graduations or appropriate marks avoiding trial and error to find a previously developed setting.
  • the belt 1 has a width of 14 cm, increased lying at 23 cm in its dorsal region.
  • the rod 2, the elbow 6 of which is offset backwards by about 10 cm relative to said region la of the belt, is composed of two rectilinear segments 2a, 2b, of about 50 cm.
  • the main dimensions of panel 9 are 15 x 22 cm, the ball 9 'has a diameter of 6.5 cm and the flexible stick 9 "is approximately 40 cm long.
  • FIG. 5 illustrates an alternative embodiment. It is a double device, comprising, carried by a common base 5 fixed on the belt 1, two similar rods 2, telescopic and orientable, adjustable independently of one another.
  • Each rod 2 is, as in the simple device previously described, on the one hand extendable and retractable according to the double arrow 13, and on the other hand orientable in any direction along the double arrow 14 as well as towards the front or towards the rear thanks to a respective ball joint 3, each obstacle 9 being itself orientable in its plane along the double arrow 10.
  • the player thus has two obstacles 9 located for example one to his right, the other to his left, identical or different, which allow him to control his forehand as well as his backhand.

Abstract

Dispositif d'entraînement porté par un joueur et comprenant une tige (2) télescopique et orientable, fixée à une large ceinture (1) dans la région dorsale (la) de celle-ci et portant à son extrémité un obstacle (9) dont la position est réglée pour définir l'endroit où doit venir s'arrêter la raquette du joueur dans l'exécution correcte d'un coup de genre déterminé. Le joueur perçoit immédiatement, par une sensation physique directe, s'il a correctement ou non exécuté le coup.

Figure imgaf001
Training device carried by a player and comprising a telescopic and orientable rod (2) fixed to a wide belt (1) in the dorsal region (la) thereof and carrying at its end an obstacle (9) the position is set to define the place where the racket of the player must come to stop in the correct execution of a certain type of stroke. The player immediately perceives, by a direct physical sensation, whether or not he has correctly executed the stroke.
Figure imgaf001

Description

Enseigner à bien jouer au tennis est une entreprise difficile. Les professeurs et entraîneurs constatent bien souvent que leurs élèves exécutent mal les mouvements qui leur sont enseignés, tout en étant convaincus que leurs gestes sont corrects. Autrement dit, les élèves n'ont pas toujours une conscience exacte des gestes qu'ils accomplissent réellement. Plus généralement, il apparaît que l'une des difficultés du tennis est pour un joueur (débutant ou confirmé) de savoir ce qu'il fait, qui ne coincide pas forcément avec ce qu'il croit faire.Teaching how to play tennis well is a difficult business. Teachers and coaches often find that their students perform poorly the movements they are taught, while being convinced that their gestures are correct. In other words, students do not always have an exact awareness of the gestures they are actually performing. More generally, it appears that one of the difficulties of tennis is for a player (beginner or experienced) to know what he is doing, which does not necessarily coincide with what he thinks he is doing.

Pour pallier ce phénomène gênant, il est connu d'enregistrer sur magnétoscope les élèves ou les stagiaires au cours de leur étude des différents mouvements du tennis, afin de leur montrer ensuite par leur propre image leur comportement dans l'exécution de ces mouvements. Mais cette méthode présente une efficacité limitée, car elle ne permet qu'une vérification tardive en raison de l'intervalle de temps inévitable en pratique entre le jeu réel et sa restitution par magnétoscope devant le joueur ; il n'est d'ailleurs pas rare que ce dernier, bien qu'ayant constaté se défauts sur l'image, recommence les mêmes fautes à la leçonisuivante.To overcome this annoying phenomenon, it is known to record pupils or trainees on a video recorder during their study of the different movements of tennis, in order to then show them by their own image their behavior in the execution of these movements. However, this method has limited effectiveness, since it only allows a late verification due to the inevitable time interval in practice between the real game and its restitution by VCR in front of the player; moreover, it is not uncommon for the latter, although having noticed faults in the image, repeats the same mistakes at the following lesson.

L'invention a pour but de créer un dispositif d'entraînement capable de donner au joueur une information immédiate sur la façon dont il exécute les différents coups du tennis.The invention aims to create a training device capable of giving the player immediate information on how he performs the different strokes of tennis.

Un tel dispositif, permettant au joueur de contrôler la qualité technique de ses gestes lors même de l'exécution des coups, est selon l'invention caractérisé par le fait qu'il comporte un objet susceptible de constituer un obstacle pour la raquette du joueur, cet objet étant monté sur une armature réglable rigidement fixée dans le dos du joueur et permettant de disposer l'objet en une position voisine de celle que doit venir prendre la raquette à une extrémité de sa course lors de l'exécution d'un coup déterminé.Such a device, allowing the player to control the technical quality of his gestures even during the execution of the strokes, is according to the invention characterized in that it comprises an object capable of constituting an obstacle for the racket of the player, this object being mounted on an adjustable frame rigidly fixed in the player's back and allowing the object to be placed in a position close to that which the racket must come to take at one end of its stroke during the execution of a determined stroke .

Le dispositif selon l'invention fournit donc au joueur, avec lequel il fait corps, un élément repère constitué par l'objet précité, qui lui permet de se rendre compte à chaque coup joué s'il a correctement ou non manoeuvré sa raquette. Cette dernière venant heurter l'obstacle donne au joueur une sensation immédiate et concrète qui lui indique si son geste est correct, ou trop haut, trop bas, trop court, trop large, trop tôt ou trop tard vis-à-vis de la balle à renvoyer, sans que le moindre doute puisse subsister dans son esprit. Suivant le genre d'obstacle utilisé, celui-ci peut même procurer une information sur l'angle d'inclinaison du plan de la raquette. Il en résulte que le joueur a ainsi "physiquement" conscience de ses gestes exacts au moment même où il les accomplit, ce qui lui est beaucoup plus profitable que l'observation tardive de son image enregistrée au magnétoscope. A cela s'y ajoute que le dispositif selon l'invention est simple et peu coûteux. Il est léger et sa présence ne gêne nullement le joueur, qui conserve toute sa liberté de jeu. Normalement utilisé sur un court de tennis, il peut également l'être chez soi pour travailler l'exécution de tel ou tel mouvement et acquérir par l'entraînement une faculté d'exécution quasi automatique des différents coups de tennis (shadow-tennis).The device according to the invention therefore provides the player, with whom it forms part, a reference element cons staggered by the aforementioned object, which allows him to realize with each stroke played if he has correctly or not maneuvered his racket. The latter hitting the obstacle gives the player an immediate and concrete sensation which indicates to him whether his gesture is correct, or too high, too low, too short, too wide, too early or too late vis-à-vis the ball to send back, without the slightest doubt can remain in his mind. Depending on the type of obstacle used, it can even provide information on the angle of inclination of the racket plane. As a result, the player is thus "physically" aware of his exact gestures at the very moment when he performs them, which is much more beneficial to him than the late observation of his image recorded on a video recorder. To this is added that the device according to the invention is simple and inexpensive. It is light and its presence does not hinder the player, who retains all his freedom of play. Normally used on a tennis court, it can also be at home to work the execution of such or such movement and acquire by l '' training an almost automatic ability to execute different tennis strokes (shadow-tennis).

La position de l'objet-obstacle peut être réglée en vue du contrôle de la position soit de préparation, soit de finition des coups. Il peut être disposé aussi bien sur la droite que sur la gauche du joueur, suivant le genre des coups à étudier. Sa position peut être modifiée graduellement pour effectuer une correction progressive des défauts d'un joueur sur un coup particulier.The position of the obstacle object can be adjusted in order to control the position either of preparation or of finishing shots. It can be placed both on the right and on the left of the player, depending on the genre of moves to be studied. Its position can be changed gradually to gradually correct a player's faults on a particular move.

Dans une forme d'exécution préférée du dispositif selon l'invention, l'armature de celui-ci comprend une tige télescopique coudée dans la région de ses extrémités et orientable autour de son extrémité d'attache à la région dorsale d'un harnais porté par le joueur, tandis qu'à son autre extrémité est fixé l'objet précité. Il est avantageux que ce harnais soit simplement constitué par une large ceinture abdominale, qui forme un support stable pour ladite tige télescopique sans créer aucune entrave aux mouvements du joueur.In a preferred embodiment of the device according to the invention, the frame thereof comprises a telescopic rod bent in the region of its ends and orientable around its end of attachment to the dorsal region of a worn harness by the player, while at the other end is fixed the aforementioned object. It is advantageous that this harness is simply constituted by a wide abdominal belt, which forms a stable support for said telescopic rod without creating any obstacle to the movements of the player.

.Ladite tige télescopique, de préférence attachée au harnais au moyen d'une articulation à rotule blocable, est avantageusement formée de deux segments rectilignes pouvant coulisser et tourner l'un dans l'autre et être verrouillés mutuellement dans la position choisie. La longueur de la tige et l'orientation de l'objet-obstacle fixé à son extrémité peuvent ainsi être aisément ajustées. Afin de pouvoir facilement caractériser les différentes configura-' tions que peut prendre le dispositif, il convient d'associer aux organes qu'il comporte pour permettre son réglage (tels qu'articulation à rotule et segments mobiles de tige télescopique) des graduations de repérage..Said telescopic rod, preferably attached to the harness by means of a lockable ball joint, is advantageously formed of two rectilinear segments which can slide and rotate one inside the other and be mutually locked in the chosen position. The length of the rod and the orientation of the obstacle object fixed at its end can thus be easily adjusted. In order to be able to easily characterize the different configurations that the device can take, it is advisable to associate with the organs that it comprises to allow its adjustment (such as ball joint and mobile segments of telescopic rod) of the marking graduations .

Pour éviter tout choc rude de la raquette sur l'objet-obstacle, celui-ci présente de préférence une structure souple. Il peut d'autre part être conçu soit pour constituer un obstacle qui ne puisse être franchi par la raquette, soit pour constituer un obstacle qui puisse être franchi par la raquette, donnant alors au joueur une indication relative à la position de sa raquette, mais sans empêcher celle-ci de continuer son mouvement vers l'arrière. Dans le premier cas, l'objet peut être un simple bloc de matière élastique, par exemple en forme de panneau rectangulaire ou de balle, fermement fixé sur son armature-porteuse. Dans le second cas, il peut être réalisé sous la forme d'un bâton flexible disposé dans un plan sensiblement vertical et dirigé de préférence vers le bas.To avoid any sharp impact of the racket on the obstacle object, the latter preferably has a flexible structure. On the other hand, it can be designed either to constitute an obstacle which cannot be crossed by the racket, or to constitute an obstacle which can be crossed by the racket, then giving the player an indication relating to the position of his racket, but without preventing it from continuing its movement backwards. In the first case, the object can be a simple block of elastic material, for example in the form of a rectangular panel or ball, firmly fixed on its support frame. In the second case, it can be produced in the form of a flexible stick arranged in a substantially vertical plane and preferably directed downwards.

En variante, un dispositif selon l'invention peut être double et comprendre une deuxième armature portant un deuxième objet de position réglable indépendamment de celle du premier objet, ces éléments complémentaires étant constitués et agencés de la façon précédemment décrite. Le joueur dispose alors simultanément de deux objets-obstacles qui lui permettent d'étudier l'exécution de deux sortes de coups dans une même phase d'exercice.As a variant, a device according to the invention can be double and include a second frame carrying a second object with an adjustable position independently of that of the first object, these complementary elements being formed and arranged in the manner previously described. The player then simultaneously has two obstacle objects which allow him to study the execution of two kinds of moves in the same exercise phase.

La description qui va suivre, en regard des dessins annexés à titre d'exemples non limitatifs, permettra de bien comprendre comment la présente invention peut être mise en pratique.

  • La figure 1 représente en perspective un dispositif selon l'invention.
  • La figure 2 représente l'extrémité de la tige télescopique du dispositif de la figure 1, munie d'un obstacle de forme différente.
  • Les figures 3 et 4 représentent un joueur utilisant un dispositif selon l'invention dans deux configurations différentes.
  • La figure 5 représente en variante un dispositif double, vu en plan.
The following description, with reference to the accompanying drawings by way of nonlimiting examples, will make it possible to understand clearly how the present invention can be put into practice.
  • Figure 1 shows in perspective a device according to the invention.
  • 2 shows the end of the telescopic rod of the device of Figure 1, provided with an obstacle of different shape.
  • Figures 3 and 4 show a player using a device according to the invention in two different configurations.
  • FIG. 5 shows a variant of a double device, seen in plan.

Conformément à la figure 1, le dispositif donné en exemple comprend essentiellement un support constitué par une large ceinture abdominale 1 et une tige télescopique 2 rigide, orientable pratiquement en tous sens grâce à une articulation à rotule 3 qui en relie une extrémité au centre de la partie dorsale la de la ceinture 1, tandis que son autre extrémité porte un objet 9 de matière souple, susceptible de faire obstacle à la raquette de tennis d'un joueur muni du dispositif.In accordance with FIG. 1, the device given as an example essentially comprises a support constituted by a wide abdominal belt 1 and a rigid telescopic rod 2, which can be oriented practically in all directions thanks to a ball joint 3 which connects one end to the center of the dorsal part 1a of the belt 1, while its other end carries an object 9 of flexible material, capable of obstructing the tennis racket of a player equipped with the device.

La ceinture 1, en cuir ou en matière plastique, comporte des portions latérales 1b en tissu élastique et se ferme au moyen de garnitures 1c du type "Velcro". Sur sa partie dorsale 1a, élargie pour constituer une surface d'assis stable, est fixé un socle 5 supportant l'articulation à rotule 3. La rotule 3a de celle-ci, qui peut être bloquée en toute position désirée par manoeuvre d'une bague filetée 3b, est solidaire de l'extrémité du premier segment tubulaire 2a de la tige télescopique 2, coudé à angle droit en 6 à faible distance de la rotule 3a. Le second segment 2b de ladite tige, également tubulaire et coudé à angle droit en 7 à proximité de son extrémité, peut tourner et coulisser dans le premier segment et y être verrouillé en toute position voulue au moyen d'une vis à tête moletée 8 (on pourrait utiliser également ici un système de blocage à galet excentrique, de maniement plus aisé).The belt 1, made of leather or plastic, has lateral portions 1b of elastic fabric and is closed by means of fittings 1c of the "Velcro" type. On its dorsal part 1a, enlarged to constitute a stable seating surface, is fixed a base 5 supporting the ball joint 3. The ball 3a thereof, which can be locked in any desired position by maneuvering a threaded ring 3b, is integral with the end of the first tubular segment 2a of the telescopic rod 2, bent at right angles to 6 at a short distance from the ball joint 3a. The second segment 2b of said rod, also tubular and bent at a right angle at 7 near its end, can turn and slide in the first segment and be locked there in any desired position by means of a knurled screw 8 ( an eccentric roller locking system could also be used here, which is easier to handle).

Au bout de la tige 2 ainsi constituée est monté l'objet de matière souple précité, savoir un épais panneau rectangulaire 9 de mousse de matière plastique, par l'intermédiaire d'une courte tige de liaison 4. L'objet peut aussi être (figure 2) une balle 9' de mousse de plastique souple, ou encore (figure 4) un bâton flexible 9", de préférence enveloppé d'une gaine de mousse élastique.At the end of the rod 2 thus formed is mounted the aforementioned flexible material object, namely a thick rectangular panel 9 of plastic foam, by means of a short connecting rod 4. The object can also be ( figure 2) a ball 9 'of flexible plastic foam, or alternatively (figure 4) a flexible stick 9 ", preferably wrapped in an elastic foam sheath.

Les figures 3 et 4 montrent deux exemples d'utilisation d'un dispositif selon l'invention que porte un joueur après avoir serré autour de sa taille la ceinture 1, la tige 2 faisant saillie latéralement dans son dos. Dans le cas de la figure 3, le dispositif est réglé pour l'étude des coups de volée ; il est muni d'un panneau 9 disposé dans un plan sensiblement frontal, le coude terminal 7 de la tige 2 étant orienté vers l'avant. Ce panneau constitue une butée définissant la position correcte de la raquette 11 du joueur en fin de préparation, qui est en principe réglée pour devoir n'être pas touchée par la raquette. Un contact avertit immédiatement le joueur qu'il envoie sa raquette 11 trop loin vers l'arrière. Dans le cas de la figure 4, le dispositif, muni d'un bâton flexible 9", est réglé pour l'étude du coup droit. Le bâton 9" est orienté vers le bas sensiblement dans un plan vertical, le coude 7 étant tourné à cet effet vers le bas. Ici, le bâton 9" constitue, contrairement aux objets 9 et 9', un obstacle franchissable par la raquette 11, au passage de laquelle il s'efface en fléchissant, de sorte qu'elle peut venir en une position terminale 11' plus reculée, tandis que le joueur a été averti par le contact momentané avec le bâton 9" que sa raquette arrivait en position correcte.Figures 3 and 4 show two examples of the use of a device according to the invention worn by a player after having tightened around his waist the belt 1, the rod 2 projecting laterally in his back. In the case of FIG. 3, the device is adjusted for the study of punt shots; it is provided with a panel 9 arranged in a substantially frontal plane, the terminal elbow 7 of the rod 2 being oriented towards the front. This panel constitutes a stop defining the correct position of the racket 11 of the player at the end of preparation, which is in principle adjusted so as not to be touched by the racket. A contact immediately warns the player that he is sending his racket 11 too far back. In the case of FIG. 4, the device, provided with a flexible stick 9 ", is adjusted for the study of the forehand. The stick 9" is oriented downwards substantially in a vertical plane, the elbow 7 being turned for this purpose down. Here, the stick 9 "constitutes, unlike the objects 9 and 9 ', an obstacle which can be crossed by the racket 11, at the passage of which it is erased by bending, so that it can come into a more remote end position 11' , while the player was warned by momentary contact with the 9 "stick that his racket was arriving in the correct position.

La tige 2 du dispositif est, sur les figures 3 et 4, orientée vers la droite du joueur. Elle peut tout aussi bien être orientée vers sa gauche, en vue de l'étude des coups de revers.The rod 2 of the device is, in Figures 3 and 4, oriented to the right of the player. It can just as well be oriented to its left, for the study of backhands.

Les différents réglages du dispositif peuvent être repérés par des graduations ou des marques appropriées évitant les tâtonnements pour retrouver un réglage précédemment mis au point. On peut par exemple inscrire sur le segment 2b de la tige télescopique 2 une échelle de graduation 12 permettant de repérer l'extension donnée à cette tige. On peut aussi doter la rotule 3a de l'articulation 3 d'anneaux colorés caractérisant l'orientation donnée à la tige 2.The different settings of the device can be identified by graduations or appropriate marks avoiding trial and error to find a previously developed setting. One can for example write on the segment 2b of the telescopic rod 2 a graduation scale 12 for identifying the extension given to this rod. It is also possible to endow the ball joint 3a of the joint 3 with colored rings characterizing the orientation given to the rod 2.

A titre indicatif, dans un exemple de réalisation concret, la ceinture 1 présente une largeur de 14 cm, augmentée à 23 cm dans sa région dorsale la. La tige 2, dont le coude 6 se trouve déporté en arrière de 10 cm environ par rapport à ladite région la de la ceinture, est composée de deux segments rectilignes 2a, 2b, de 50 cm environ. Le panneau 9 a pour dimensions principales 15 x 22 cm, la balle 9' a pour diamètre 6,5 cm et le bâton flexible 9" a pour longueur 40 cm environ.As an indication, in a concrete embodiment, the belt 1 has a width of 14 cm, increased lying at 23 cm in its dorsal region. The rod 2, the elbow 6 of which is offset backwards by about 10 cm relative to said region la of the belt, is composed of two rectilinear segments 2a, 2b, of about 50 cm. The main dimensions of panel 9 are 15 x 22 cm, the ball 9 'has a diameter of 6.5 cm and the flexible stick 9 "is approximately 40 cm long.

La figure 5 illustre une variante de réalisation. Il s'agit d'un dispositif double, comportant, portées par un socle 5 commun fixé sur la ceinture 1, deux tiges 2 semblables, télescopiques et orientables, réglables indépendamment l'une de l'autre. Chaque tige 2 est, comme dans le dispositif simple précédemment décrit, d'une part extensible et rétractable suivant la double flèche 13, et d'autre part orientable en toute direction suivant la double flèche 14 ainsi que vers l'avant ou vers l'arrière grâce à une articulation à rotule 3 respective, chaque obstacle 9 étant lui-même orientable dans son plan suivant la double flèche 10. Le joueur dispose ainsi de deux obstacles 9 situés par exemple l'un à sa droite, l'autre à sa gauche, identiques ou différents, qui lui permettent de contrôler aussi bien ses coups droits que ses revers.FIG. 5 illustrates an alternative embodiment. It is a double device, comprising, carried by a common base 5 fixed on the belt 1, two similar rods 2, telescopic and orientable, adjustable independently of one another. Each rod 2 is, as in the simple device previously described, on the one hand extendable and retractable according to the double arrow 13, and on the other hand orientable in any direction along the double arrow 14 as well as towards the front or towards the rear thanks to a respective ball joint 3, each obstacle 9 being itself orientable in its plane along the double arrow 10. The player thus has two obstacles 9 located for example one to his right, the other to his left, identical or different, which allow him to control his forehand as well as his backhand.

Claims (12)

1. Dispositif d'entraînement pour joueur de tennis, permettant à celui-ci de contrôler la qualité technique de ses gestes lors de l'exécution des coups, caractérisé par le fait qu'il comporte un objet (9, 9', 9") susceptible de constituer un obstacle pour la raquette (11) du joueur, cet étant objet/monté sur une armature réglable (2) rigidement fixée dans le dos du joueur et permettant de disposer l'objet en une position voisine de celle que doit venir prendre la raquette à une extrémité de sa course lors de l'exécution d'un coup déterminé.1. Training device for tennis players, allowing them to control the technical quality of their gestures during the execution of strokes, characterized in that it includes an object (9, 9 ′, 9 ″ ) likely to constitute an obstacle for the racket (11) of the player, this being an object / mounted on an adjustable frame (2) rigidly fixed in the back of the player and allowing the object to be placed in a position close to that which is to come take the racket at one end of its course when executing a determined stroke. 2. Dispositif selon la revendication 1, caractérisé par le fait que l'armature comprend une tige télescopique (2) coudée dans la région de ses extrémités et orientable autour de son extrémité d'attache à la région dorsale d'un harnais (1) porté par le joueur, tandis qu'à son autre extrémité est fixé l'objet précité.2. Device according to claim 1, characterized in that the frame comprises a telescopic rod (2) bent in the region of its ends and orientable around its end of attachment to the dorsal region of a harness (1) worn by the player, while at the other end is fixed the aforementioned object. fait 3. Dipositif selon la revendication 2, caractérisé par le/que le harnais (1) est constitué par une large ceinture abdominale.does 3 . Dipositif according to claim 2, characterized in / that the harness (1) is constituted by a wide abdominal belt. 4. Dispositif selon la revendication 2 ou 3, caractérisé par le fait que la tige télescopique (2) est attachée au harnais (1) au moyen d'une articulation à rotule (3) blocable.4. Device according to claim 2 or 3, characterized in that the telescopic rod (2) is attached to the harness (1) by means of a ball joint (3) lockable. 5. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé par le fait que la tige télescopique/est forméede deux segments rectilignes (2a, 2b) pouvant coulisser et tourner l'un dans l'autre et être verrouillés mutuellement dans la position choisie.5. Device according to any one of claims 2 to 4, characterized in that the telescopic rod / is formed of two rectilinear segments (2a, 2b) which can slide and turn one inside the other and be locked mutually in the chosen position. 6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé par le fait qu'aux organes permettant le réglage qu'il comporte sont associées des graduations (12) de repérage des différentes configurations du dispositif.6. Device according to any one of claims 1 to 5, characterized in that the members allowing the adjustment that it comprises are associated graduations (12) for identifying the various configurations of the device. 7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé par le fait que l'objet (9, 9',9") présente une structure souple.7. Device according to any one of claims 1 to 6, characterized in that the object (9, 9 ', 9 ") has a flexible structure. 8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé par le fait que l'objet (9, 9') constitue un obstacle qui ne peut être franchi par la raquette.8. Device according to any one of claims 1 to 7, characterized in that the object (9, 9 ') constitutes an obstacle which cannot be crossed by the racket. 9. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé par le fait que l'objet (9") constitue un obstacle qui peut être franchi par la raquette.9. Device according to any one of claims 1 to 7, characterized in that the object (9 ") constitutes an obstacle which can be crossed by the racket. 10. Dispositif selon les revendications 7 et 8, caractérisé par le fait que l'objet (9, 9') est un bloc de matière élastique.10. Device according to claims 7 and 8, characterized in that the object (9, 9 ') is a block of elastic material. 11. Dispositif selon les revendications 7 et 9, caractérisé par le fait que l'objet (9") est un bâton flexible disposé dans un plan sensiblement vertical.11. Device according to claims 7 and 9, characterized in that the object (9 ") is a flexible stick arranged in a substantially vertical plane. 12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé par le fait qu'il est double et comprend une deuxième armature (2) portant un deuxième objet (9, 9', 9") de position réglable indépendamment de celle du premier objet (9, 9', 9"), ces éléments complémentaires étant constitués et agencés selon l'une quelconque des revendications précédentes.12. Device according to any one of claims 1 to 11, characterized in that it is double and comprises a second frame (2) carrying a second object (9, 9 ', 9 ") of position adjustable independently of that of the first object (9, 9 ', 9 "), these complementary elements being constituted and arranged according to any one of the preceding claims.
EP82401714A 1981-09-29 1982-09-21 Training device for a tennis player Expired EP0076203B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8118332 1981-09-29
FR8118332A FR2513526A1 (en) 1981-09-29 1981-09-29 TRAINING DEVICE FOR TENNIS PLAYER

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EP0076203A1 true EP0076203A1 (en) 1983-04-06
EP0076203B1 EP0076203B1 (en) 1985-03-20

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EP (1) EP0076203B1 (en)
DE (1) DE3262688D1 (en)
FR (1) FR2513526A1 (en)

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Also Published As

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US4519608A (en) 1985-05-28
EP0076203B1 (en) 1985-03-20
FR2513526B1 (en) 1984-12-14
FR2513526A1 (en) 1983-04-01
DE3262688D1 (en) 1985-04-25

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