EP0220111B1 - Training apparatus for tennis - Google Patents

Training apparatus for tennis Download PDF

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Publication number
EP0220111B1
EP0220111B1 EP86402232A EP86402232A EP0220111B1 EP 0220111 B1 EP0220111 B1 EP 0220111B1 EP 86402232 A EP86402232 A EP 86402232A EP 86402232 A EP86402232 A EP 86402232A EP 0220111 B1 EP0220111 B1 EP 0220111B1
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EP
European Patent Office
Prior art keywords
trap door
net
accordance
zone
plates
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Expired - Lifetime
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EP86402232A
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German (de)
French (fr)
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EP0220111A3 (en
EP0220111A2 (en
Inventor
Antonio Obradors Pregonas
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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
    • A63B63/00—Targets or goals for ball games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B63/00—Targets or goals for ball games
    • A63B2063/001—Targets or goals with ball-returning means

Definitions

  • the present invention relates to a new apparatus for tennis training, but which can be used, in general, for training in any other game in which a ball moving at high speed over long distances is used; this device is used as an effective partner, both by beginners and by people already used to these games.
  • the apparatus according to the invention has an important advantage over known "ball-throwing machines", which require, for their use, a large quantity of balls. It requires only one ball for training.
  • This important advantage results from the fact that even if one of the ball throws is badly directed, it still penetrates inside the device, due to the width of the mouth of it, a beginner can be placed less than two meters from the device.
  • This device provides a game that is both educational and entertaining and can be applied to a large number of different games. This is not the case, for example, of the apparatus described in document WO-A 8 001 650, which comprises inclined lateral uprights and supported by feet, a fabric stretched between the lateral uprights, the apparatus having a cover shape at its upper part; this cover allows the bounce of the ball.
  • This device does not include means for holding the ball in an area facing the player; it follows that the player must show great skill in order to train with only one ball; if his address is unimportant, this player must have a large quantity of balls, to avoid picking up any ball lost as a result of an awkward stroke.
  • This known device is also not very adaptable to a large number of different games.
  • the invention remedies these drawbacks by proposing an apparatus, in which, after the ball has entered it, it cannot come out of it randomly because it is always directed towards one of the exit paths planned; these again direct the ball into the area where the player is located, who can then resume playing in peace.
  • the apparatus consists of a receptacle defined by uprights forming a structure of parallelepipedic external shape, closed on its sides and supported by four feet, a pair of which carries movable parts which can allow them to vary their height, and whose lower upright of the structure comprises a front extension articulated in its junction part and which is provided with a tie rod making it possible to make the whole rigid, this extension as well as the rest of the uprights facilitating the support of a net which, subdivided into various different zones and having a shape with a parabolic tendency, closes the apparatus both at the lower part than at the rear part, and which is extended to the front part by the front part and remains immobilized by means of a counterweight placed at its lower part, said net remaining stretched at its rear part by a transverse plate in its first zone, while the end of a conde zone is fixed to a tilting hatch closing the device at its upper rear; this hatch having another net which hangs from one of the plates which form it, while the rest of the upper surface
  • the player stands opposite the front part and throws the ball inwards, so that it strikes the nets which occupy the lower and rear parts; the speed of the ball is damped and the ball changes direction depending on the angle of incidence; in any case, the ball reaches the outside by crossing the mouth of the device, even when a flap, located at the top, is closed.
  • the hatch is provided with an operating rod provided with two orifices.
  • the second hole allows it to be fixed in position thanks to a protruding stud; it follows that when the hatch is open the two half-parts can have the shape of a double-pitched roof; the ball which reaches the hatch can then be returned with a different inclination depending on the position of the slope of the roof that it strikes.
  • the new device especially for tennis training, is therefore very complete and also makes it possible to try and repeat a large quantity of distinct games, which ensures its wide use, and justifies its great usefulness.
  • the new device according to the invention for training in a game of ball and in particular in tennis has a rectangular parallelepidedic structure 1, inclined, mounted on four feet; the rear feet 2 are provided with wheels 3, to facilitate the transport of the device, while each front foot has a lower part 5, connected to this foot by a pin 6 around which this lower part can pivot; this pivoting makes it possible to place the part 5 in the extension of the foot 4 (FIG. 2) and thus to increase the height of the foot 4.
  • the lower part 5 is inclined backwards.
  • the paralleledipedic structure 1 which constitutes the general body of the apparatus, comprises external uprights 7, the lower front parts of which extend forward at 8 (FIG. 3); each external upright comprises an arm 9 joined to the lower front part 8 by means of a pin 10; a tie rod 11 retains this arm in position so that it makes it possible to adjust the relative position of the arm 9 with respect to the front extension 8 of the upright 7.
  • This arm and this tie rod thus have a variable angle.
  • a lower net extends in the device, both at the lower part than at the rear part; this net is subdivided into three zones 43, 44, 55, two of which are related (43 and 44).
  • the front part of the zone 43 hangs freely and is ballasted with a mass 14; the upper end 15 of the zone 44 is connected to a movable hatch 16 extending transversely and which closes the device at its rear upper part.
  • the rear part of the device is provided with a transverse cover 17 whose lower part 18 can move at will by means of a hinge, this cover is located below the hatch 16, facing the player.
  • the apparatus also comprises an upper thread 19, folded in two parts around a transverse bar 20.
  • the upper end 21 of the thread 19 is fixed by a tensioner 13, while the opposite lower end 22 moves on guides 23, thus allowing the said ends to be brought closer or further apart, by enlarging or decreasing the length of the thread 19.
  • the hatch 16 is open, the ball comes out through the opening thus formed in the upper part of the apparatus for sliding on the net 19 and falling in a damped fall in front of the player, at a variable distance.
  • this is fixed to a means 24 for controlling the rotation of the hatch projecting relative to the device and being able to rotate about an axis 25.
  • This rotation is facilitated by the existence of a posterior element 26, joined to element 24, which, when pulled down, forces said hatch to rise, as shown in FIGS. 4 and 5.
  • the hatch 16 is retained by means of a rod 27, the end 28 of which is introduced into one of the separate orifices presented by an extension 29 of one of the rear legs 2 of the structure.
  • the hatch 16 proper it consists of two rectangular plates 30 and 31, hinged together by a hinge 32.
  • a bent metal lug 33 prevents the separation of the two plates when the hatch is closed.
  • a counterweight 34 which moves rearward when the hatch is raised to the maximum, allows, when desired, to move the plate 31 relative to the plate 30 so as to place it in a perfectly open position relative to the plate 30 It is then possible to hold the plate 31 in its position, thanks to another rod 35, one end of which 36 is fixed to an extension of a rear leg, opposite to the extension 29 to which the rod 27 described above is fixed. In this position, the ball rises almost vertically and strikes the net 15 which dampens its movement, then the ball slides on the net 19, falling gently in front of the player.
  • the rear part of the device also comprises a transverse rectangular flap 37 fixed to an axis 38 around which it can rotate. In its lower part, this flap is joined, by a cord or the like 39, to the plate 30 of the hatch 16. The end of this cord, opposite the end by which it is fixed to the rectangular flap 37, is connected by a spring 40, to a part 41 integral with a handle 26 which allows you to move the hatch.
  • the flap 37 bears against the net 44; in this position, we can play as if it were a pediment, by throwing the ball against a hard surface, while when the hatch is open, contact ceases between the flap 37 and the net 44 and we avoid thus dangerous bounces of the ball.
  • This second embodiment of the hatch 48 lies in the fact that the hatch is divided transversely into two rectangular plates 51 and 53 joined by a hinge 54 and directed from the rear to the front of the structure. This allows this hatch to take the form of a double-pitched roof, ensuring that the axis 50 is perfectly introduced inside the corresponding orifice of the rod 2T, by means of a spring 55.
  • the movement of the rod 27, is transmitted to the hatch 48 by means of an articulated bar 56 fixed at 57 to the plate 52, placed at the top of the hatch.
  • FIG. 12 represents a second embodiment of the structure 1 in which the front leg 4 is offset towards the rear, allowing the front uprights 8 and 57 to protrude which can rotate around their junction points 58 and 59 so that the whole structure can be folded.
  • An improvement in the overall structure of the device can be made by virtue of an axis 60 around which the front part of the net 12 forms a loop. A portion of this loop, close to the end of the net passes over another axis 61.
  • This axis 61 is made movable by a double part 62. This part makes it possible to move the net according to the positions shown in the two views of the figure 13. These views show how it is possible to vary the angle of the lower zone of the net significantly with respect to the ground and thus obtain different directions of the ball, according to a more or less stretched parabola.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)
  • Rehabilitation Tools (AREA)
  • Gates (AREA)
  • Emergency Lowering Means (AREA)

Description

La présente invention concerne un nouvel appareil pour l'entraînement au tennis, mais qui peut être utilisé, en général, pour l'entraînement à tout autre jeu dans lequel on utilise une balle se déplaçant à grande vitesse sur de longues distances; cet appareil est utilisé comme partenaire efficace, aussi bien par des débutants que par des personnes déjà habituées à ces jeux.The present invention relates to a new apparatus for tennis training, but which can be used, in general, for training in any other game in which a ball moving at high speed over long distances is used; this device is used as an effective partner, both by beginners and by people already used to these games.

L'appareil, selon l'invention, présente un avantage important par rapport aux "machines lance-balles" connues, qui nécessitent, pour leur utilisation une grands quantité de balles. Il ne nécessite pour l'entraînement, qu'une seule balle.The apparatus according to the invention has an important advantage over known "ball-throwing machines", which require, for their use, a large quantity of balls. It requires only one ball for training.

Cet avantage important résulte du fait que même si l'un des lancements de balle est mal dirigé, celle-ci pénètre toujours à l'intérieur de l'appareil, par suite de la largeur de l'embouchure de celui-ci, un débutant pouvant se placer à moins de deux mètres de l'appareil. Cet appareil permet d'obtenir un jeu à la fois formateur et distrayant et s'applique à un grand nombre de jeux différents. Ce n'est pas le cas par exemple, de l'appareil décrit dans le document WO-A 8 001 650, qui comporte des montants latéraux inclinés et soutenus par des pieds, une toile tendue entre les montants latéraux, l'appareil présentant une forme de capot à sa partie supérieure; ce capot permet le rebond de la balle. Cet appareil ne comporte pas de moyens pour maintenir la balle dans une zone en regard du joueur; il en résulte que le joueur doit faire preuve d'une grande adresse pour ne s'entraîner qu'avec une seule balle; si son adresse est peu importante, ce joueur doit posséder une grande quantité de balles, pour éviter de ramasser toute balle perdue par suite d'un coup maladroit. Cet appareil connu est d'autre part peu adaptable à un grand nombre de jeux différents.This important advantage results from the fact that even if one of the ball throws is badly directed, it still penetrates inside the device, due to the width of the mouth of it, a beginner can be placed less than two meters from the device. This device provides a game that is both educational and entertaining and can be applied to a large number of different games. This is not the case, for example, of the apparatus described in document WO-A 8 001 650, which comprises inclined lateral uprights and supported by feet, a fabric stretched between the lateral uprights, the apparatus having a cover shape at its upper part; this cover allows the bounce of the ball. This device does not include means for holding the ball in an area facing the player; it follows that the player must show great skill in order to train with only one ball; if his address is unimportant, this player must have a large quantity of balls, to avoid picking up any ball lost as a result of an awkward stroke. This known device is also not very adaptable to a large number of different games.

L'invention remédie à ces inconvénients en proposant un appareil, dans lequel, après que la balle ait pénétré dans celui-ci, elle ne peut pas en sortir d'une façon aléatoire car elle est toujours dirigée vers l'une des voies de sortie prévues; celles-ci dirigent de nouveau la balle dans la zone où se trouve le joueur, qui peut alors se remettre à jouer en toute tranquillité.The invention remedies these drawbacks by proposing an apparatus, in which, after the ball has entered it, it cannot come out of it randomly because it is always directed towards one of the exit paths planned; these again direct the ball into the area where the player is located, who can then resume playing in peace.

L'appareil selon l'invention est constitué par un réceptacle défini par des montants formant une structure de forme extérieure parallélépipédique, fermé sur ses côtés et supporté par quatre pieds, dont une paire porte des parties mobiles pouvant leur permettre de varier leur hauteur, et dont le montant inférieur de la structure comporte un prolongement avant articulé dans sa partie de jonction et qui est muni d'un tirant permettant de rendre le tout rigide, ce prolongement ainsi que le reste des montants facilitant l'appui d'un filet qui, subdivisé en diverses zones différentes et ayant une forme à tendance parabolique, ferme l'appareil aussi bien à la partie inférieure qu'à la partie arrière, et qui se prolonge à la partie antérieure par la partie avant et reste immobilisé au moyen d'un contrepoids placé à sa partie inférieure, ledit filet restant tendu à sa partie arrière par une plaque transversale dans sa première zone, tandis que l'extrémité d'une seconde zone est fixée à une trappe basculante fermant l'appareil à sa partie supérieure arrière; cette trappe possédant un autre filet qui pend de l'une des plaques qui la forment, tandis que le reste de la surface supérieure est couvert par un filet plié pour former un angle autour d'un axe avec ses extrémités fixées par deux barres dont une est reliée à un ressort de tension et l'autre glisse dans des guides latéraux, en permettant ainsi d'approcher ou d'éloigner lesdites extrémités ce qui provoque une longueur plus grande du filet, tandis qu'à sa partie arrière, l'appareil est fermé par deux plaques reliées entre elles par une charnière, de telle façon que la plaque supérieure ait la possibilité de se déplacer, en laissant découverte la partie intérieure de l'appareil dans une zone plus grande que lorsqu'elle est abaissée, alors que sur deux côtés de l'appareil et visibles de l'avant, il existe deux larges parties, qui aident le joueur à centrer l'embouchure de l'entrée de l'appareil.The apparatus according to the invention consists of a receptacle defined by uprights forming a structure of parallelepipedic external shape, closed on its sides and supported by four feet, a pair of which carries movable parts which can allow them to vary their height, and whose lower upright of the structure comprises a front extension articulated in its junction part and which is provided with a tie rod making it possible to make the whole rigid, this extension as well as the rest of the uprights facilitating the support of a net which, subdivided into various different zones and having a shape with a parabolic tendency, closes the apparatus both at the lower part than at the rear part, and which is extended to the front part by the front part and remains immobilized by means of a counterweight placed at its lower part, said net remaining stretched at its rear part by a transverse plate in its first zone, while the end of a conde zone is fixed to a tilting hatch closing the device at its upper rear; this hatch having another net which hangs from one of the plates which form it, while the rest of the upper surface is covered by a net folded to form an angle around an axis with its ends fixed by two bars, one of which is connected to a tension spring and the other slides in lateral guides, thus allowing to approach or move away said ends which causes a greater length of the net, while at its rear part, the device is closed by two plates connected to each other by a hinge, in such a way that the upper plate has the possibility of moving, leaving the inside of the device uncovered in a larger area than when it is lowered, while on two sides of the device and visible from the front, there are two large parts, which help the player to center the mouth of the entry of the device.

Pour utiliser l'appareil, le joueur se place en regard de la partie avant et lance la balle vers l'intérieur, de sorte que celle-ci vient heurter les filets qui occupent les parties inférieure et arrière; la vitesse de la balle est amortie et la balle change de direction en fonction de l'angle d'incidence; de toute façon, la balle parvient à l'extérieur en traversant l'embouchure de l'appareil, même lorsqu'une trappe à abattant, située à la partie supérieure, est fermée.To use the device, the player stands opposite the front part and throws the ball inwards, so that it strikes the nets which occupy the lower and rear parts; the speed of the ball is damped and the ball changes direction depending on the angle of incidence; in any case, the ball reaches the outside by crossing the mouth of the device, even when a flap, located at the top, is closed.

Au moment où la trappe supérieure s'ouvre, la balle ne descend pas sur le filet d'entrée, mais sort par la partie supérieure de l'appareil, en suivant une parabole plus ou moins étirée selon l'angle d'ouverture de la trappe, ce qui permet ainsi de pratiquer des volées ou des smash dans l'ouverture de la machine. Si la trappe est ouverte, et si les deux plaques qui la composent sont totalement ouvertes, la balle qui suit une direction verticale, ("lob") vient heurter le filet fixé à cette trappe et tombe, ainsi amortie, sur le filet de la partie supérieure, la balle glisse alors que ce filet pour venir tomber doucement devant le joueur, ce qui est tout à fait approprié à des joueurs débutants.When the upper hatch opens, the ball does not descend onto the entry net, but leaves through the upper part of the device, following a parabola more or less stretched according to the opening angle of the hatch, which allows you to practice volley or smash in the opening of the machine. If the hatch is open, and if the two plates which compose it are completely open, the ball which follows a vertical direction, ("lob") strikes the net fixed to this hatch and falls, thus damped, on the net of the upper part, the ball slides while this net to gently fall in front of the player, which is entirely suitable for beginners.

Dans un autre mode de réalisation, il est possible de faire varier la disposition de la trappe supérieure, en la remplaçant par une plaque plane élargie, subdivisée transversalement en deux parties, réunies entre elles par des charnières; la trappe est munie d'une tige de manoeuvre munie de deux orifices. Le second orifice permet de la fixer en position grâce à un téton faisant saillie; il en résulte que lorsque la trappe est ouverte les deux demi-parties peuvent présenter la forme d'un toit à double pente; la balle qui parvient jusqu'à la trappe peut alors être renvoyée avec une inclinaison différente en fonction de la position du versant du toit qu'elle vient heurter.In another embodiment, it is possible to vary the arrangement of the upper hatch, by replacing it with an enlarged flat plate, divided transversely into two parts, joined together by hinges; the hatch is provided with an operating rod provided with two orifices. The second hole allows it to be fixed in position thanks to a protruding stud; it follows that when the hatch is open the two half-parts can have the shape of a double-pitched roof; the ball which reaches the hatch can then be returned with a different inclination depending on the position of the slope of the roof that it strikes.

Il est également possible de faire varier la disposition de l'ensemble de la structure de l'appareil, pour facitiliter son stockage, en diminuant son volume total; pour cela, il suffit de rapprocher entre eux les pieds avant et arrière, en laissant la partie avant en saillie; cette partie est rendue suffisamment rigide, de sorte qu'au moment où l'on cesse d'utiliser l'appareil, il est possible de le replier sur lui-même et de le laisser appuyé contre ce qui reste de son support; le volume d'encombrement est ainsi réduit de manière importante.It is also possible to vary the arrangement of the entire structure of the device, to facilitate its storage, by reducing its total volume; for this, it suffices to bring the front and rear feet together, leaving the front part projecting; this part is made sufficiently rigid, so that when you stop using the device, it is possible to fold it over himself and let him lean against what remains of his support; the overall volume is thus reduced significantly.

Le nouvel appareil, notamment pour l'entraînement au tennis, est donc très complet et permet aussi d'essayer et de répéter une grande quantité de jeux distincts, ce qui lui assure une large utilisation, et justifie sa grande utilité.The new device, especially for tennis training, is therefore very complete and also makes it possible to try and repeat a large quantity of distinct games, which ensures its wide use, and justifies its great usefulness.

Pour faciliter la compréhension de l'invention, la description est accompagnée de dessins dans lesquels on a représenté, à titre d'exemple illustratif mais non limitatif, un mode de réalisation d'un appareil pour l'entraînement au tennis, conforme à l'invention.To facilitate understanding of the invention, the description is accompanied by drawings in which there is shown, by way of illustrative but nonlimiting example, an embodiment of an apparatus for tennis training, in accordance with invention.

Sur ces dessins:

  • la figure 1 présente une vue de profil et en coupe partielle du nouvel appareil de l'invention, pour l'entraînement au tennis;
  • les figures 2 et 3 montrent en élévation, des détails des deux parties de la structure dudit appareil;
  • les figures 4 et 5, montrent les deux mêmes coupes en élévation, de la partie supérieure du nouvel appareil selon l'invention, dans laquelle on a placé la trappe supérieure dans deux des .positions possibles;
  • la figure 6 représente une vue en élévation avant de l'appareil selon l'invention;
  • la figure 7 représente un détail de la figure 6;
  • les figures 8 et 9 représentent deux vues en élévation, d'un mode de réalisation de la trappe de fermeture supérieure de l'appareil, en forme de toît;
  • les figures 10 et 11 sont des vues de profil dudit mode de réalisation;
  • la figure 12 montre un second mode de réalisation de l'ensemble de la structure de l'appareil; et
  • la figure 13 montre un détail, en élévation, de la fixation du filet au montant avant, dans ce second mode de réalisation, suivant deux inclinaisons possibles.
In these drawings:
  • Figure 1 shows a side view in partial section of the new apparatus of the invention, for tennis training;
  • Figures 2 and 3 show in elevation, details of the two parts of the structure of said apparatus;
  • Figures 4 and 5 show the same two sections in elevation of the upper part of the new device according to the invention, in which the upper hatch has been placed in two of the possible positions;
  • Figure 6 shows a front elevational view of the apparatus according to the invention;
  • Figure 7 shows a detail of Figure 6;
  • Figures 8 and 9 show two elevational views of an embodiment of the upper closure flap of the device, roof-shaped;
  • Figures 10 and 11 are side views of said embodiment;
  • Figure 12 shows a second embodiment of the entire structure of the device; and
  • Figure 13 shows a detail, in elevation, of the attachment of the net to the front upright, in this second embodiment, according to two possible inclinations.

Comme représenté sur la figure 1, le nouvel appareil conforme à l'invention pour l'entraînement à un jeu de balle et notamment au tennis, comporte une structure parallélépidédique rectangulaire 1, inclinée, montée sur quatre pieds; les pieds arrière 2 sont munis de roues 3, pour faciliter le transport de l'appareil, tandis que chaque pied avant comporte une pièce inférieure 5, reliée à ce pied par une goupille 6 autour de laquelle cette pièce inférieure peut pivoter; ce pivotement permet de placer la pièce 5 dans le prolongement du pied 4 (figure 2) et ainsi d'augmenter la hauteur du pied 4. Quand on ne souhaite pas l'utiliser, la pièce inférieure 5 est inclinée vers l'arrière.As shown in Figure 1, the new device according to the invention for training in a game of ball and in particular in tennis, has a rectangular parallelepidedic structure 1, inclined, mounted on four feet; the rear feet 2 are provided with wheels 3, to facilitate the transport of the device, while each front foot has a lower part 5, connected to this foot by a pin 6 around which this lower part can pivot; this pivoting makes it possible to place the part 5 in the extension of the foot 4 (FIG. 2) and thus to increase the height of the foot 4. When it is not desired to use it, the lower part 5 is inclined backwards.

La structure parallèlédipédique 1, qui constitue le corps général de l'appareil, comprend des montants extérieurs 7, dont les parties inférieures avant se prolongent vers l'avant en 8 (figure 3); chaque montant extérieur comporte un bras 9 réuni à la partie inférieure avant 8 au moyen d'une goupille 10; un tirant 11 retient ce bras en position de sorte qu'il permet de régler la position relative du bras 9 par rapport au prolongement avant 8 du montant 7. Ce bras et ce tirant présentent ainsi un angle variable. Un filet inférieur s'étend dans l'appareil, aussi bien à la partie inférieure qu'à la partie arrière; ce filet est subdivisé en trois zones 43, 44, 55 dont deux sont en relation (43 et 44). La partie avant de la zone 43 pend librement et est lestée par une masse 14; l'extrémité supérieure 15 de la zone 44, est reliée à une trappe mobile 16 s'étendant transversalement et qui ferme l'appareil à sa partie supérieure arrière.The paralleledipedic structure 1, which constitutes the general body of the apparatus, comprises external uprights 7, the lower front parts of which extend forward at 8 (FIG. 3); each external upright comprises an arm 9 joined to the lower front part 8 by means of a pin 10; a tie rod 11 retains this arm in position so that it makes it possible to adjust the relative position of the arm 9 with respect to the front extension 8 of the upright 7. This arm and this tie rod thus have a variable angle. A lower net extends in the device, both at the lower part than at the rear part; this net is subdivided into three zones 43, 44, 55, two of which are related (43 and 44). The front part of the zone 43 hangs freely and is ballasted with a mass 14; the upper end 15 of the zone 44 is connected to a movable hatch 16 extending transversely and which closes the device at its rear upper part.

La partie postérieure de l'appareil est munie d'un capot transversal 17 dont la partie inférieure 18 peut se déplacer à volonté au moyen d'une charnière, ce capot est situé en dessous de la trappe 16, en regard du joueur.The rear part of the device is provided with a transverse cover 17 whose lower part 18 can move at will by means of a hinge, this cover is located below the hatch 16, facing the player.

A sa partie supérieure, l'appareil comporte également un filet supérieur 19, plié en deux parties autour d'une barre transversale 20. L'extrémité supérieure 21 du filet 19 est fixée par un tendeur 13, tandis que l'extrémité inférieure opposée 22 se déplace sur des guides 23, permettant ainsi de rapprocher ou d'éloigner lesdites extrémités, en agrandissant ou en diminuant la longueur du filet 19. Il en résulte que lorsque la trappe 16 est ouverte, la balle sort par l'ouverture ainsi ménagée dans la partie supérieure de l'appareil pour glisser sur le filet 19 et tomber en chute amortie en face du joueur, à une distance variable.At its upper part, the apparatus also comprises an upper thread 19, folded in two parts around a transverse bar 20. The upper end 21 of the thread 19 is fixed by a tensioner 13, while the opposite lower end 22 moves on guides 23, thus allowing the said ends to be brought closer or further apart, by enlarging or decreasing the length of the thread 19. As a result, when the hatch 16 is open, the ball comes out through the opening thus formed in the upper part of the apparatus for sliding on the net 19 and falling in a damped fall in front of the player, at a variable distance.

En ce qui concerne la trappe arrière 16, celle-ci est fixée à un moyen 24 de commande de rotation de la trappe faisant saillie par rapport à l'appareil et pouvant tourner autour d'un axe 25. Cette rotation est facilitée par l'existence d'un élément postérieur 26, conjoint à l'élément 24, qui, lorsqu'on le tire vers le bas, oblige ladite trappe à se lever, comme le montrent les figures 4 et 5. Une fois placée dans la position désirée, la trappe 16 est retenue au moyen d'une tige 27 dont l'extrémité 28 est introduite dans l'un des orifices distincts que présente un prolongement 29 de l'un des pieds arrière 2 de la structure.As regards the rear hatch 16, this is fixed to a means 24 for controlling the rotation of the hatch projecting relative to the device and being able to rotate about an axis 25. This rotation is facilitated by the existence of a posterior element 26, joined to element 24, which, when pulled down, forces said hatch to rise, as shown in FIGS. 4 and 5. Once placed in the desired position, the hatch 16 is retained by means of a rod 27, the end 28 of which is introduced into one of the separate orifices presented by an extension 29 of one of the rear legs 2 of the structure.

Si l'on se réfère à la trappe 16 proprement dite, celle-ci est constituée par deux plaques rectangulaires 30 et 31, articulées entre elles grâce à une charnière 32. Un ergot métallique coudé 33 évite la séparation des deux plaques lorsque la trappe est fermée. Un contrepoids 34 qui se déplace vers l'arrière lorsque la trappe est soulevée au maximum, permet lorsqu'on le désire de déplacer la plaque 31 par rapport à la plaque 30 de manière à la placer en position parfaitement ouverte par rapport à la plaque 30. On peut alors procéder au maintien de la plaque 31 dans sa position, grâce à une autre tige 35, dont une extrémité 36 est fixée à un prolongement d'un pied arrière, opposé au prolongement 29 auquel est fixée la tige 27 précédemment décrite. Dans cette position, la balle monte presque verticalement et vient heurter le filet 15 qui amortit son mouvement, puis la balle glisse sur le filet 19, en tombant doucement devant le joueur.If we refer to the hatch 16 proper, it consists of two rectangular plates 30 and 31, hinged together by a hinge 32. A bent metal lug 33 prevents the separation of the two plates when the hatch is closed. A counterweight 34 which moves rearward when the hatch is raised to the maximum, allows, when desired, to move the plate 31 relative to the plate 30 so as to place it in a perfectly open position relative to the plate 30 It is then possible to hold the plate 31 in its position, thanks to another rod 35, one end of which 36 is fixed to an extension of a rear leg, opposite to the extension 29 to which the rod 27 described above is fixed. In this position, the ball rises almost vertically and strikes the net 15 which dampens its movement, then the ball slides on the net 19, falling gently in front of the player.

La partie postérieure de l'appareil comporte aussi un volet rectangulaire transversal 37 fixé à un axe 38 autour duquel il peut tourner. Dans sa partie inférieure ce volet est réuni, par un cordon ou analogue 39, à la plaque 30 de la trappe 16. L'extrémité de ce cordon, opposée à l'extrémité par laquelle il est fixé au volet rectangulaire 37, est reliée par un ressort 40, à une pièce 41 solidaire d'une poignée 26 qui permet de déplacer la trappe. Lorsque la trappe 16 est fermée, le volet 37 s'appuie contre le filet 44; dans cette position, on peut jouer comme s'il s'agissait d'un fronton, en lançant la balle contre une surface dure, tandis que lorsque la trappe est ouverte, le contact cesse entre le volet 37 et le filet 44 et on évite ainsi des rebonds dangereux de la balle.The rear part of the device also comprises a transverse rectangular flap 37 fixed to an axis 38 around which it can rotate. In its lower part, this flap is joined, by a cord or the like 39, to the plate 30 of the hatch 16. The end of this cord, opposite the end by which it is fixed to the rectangular flap 37, is connected by a spring 40, to a part 41 integral with a handle 26 which allows you to move the hatch. When the hatch 16 is closed, the flap 37 bears against the net 44; in this position, we can play as if it were a pediment, by throwing the ball against a hard surface, while when the hatch is open, contact ceases between the flap 37 and the net 44 and we avoid thus dangerous bounces of the ball.

  • Les figures 6 et 7 montrent la partie avant de l'appareil. On voit sur ces figures la partie supérieure des pieds 4 qui, dans leur prolongement inférieur, constituent les appuis avant de la structure sur le sol; des deux côtés des montants et des pieds, sont disposés deux écrans empêchant la balle de s'échapper; la partie supérieure de la figure 6, fait apparaître la trappe 16. Sur la figure 7, on a représenté, pour une meilleure compréhension, un agrandissement qui montre les pieds 4, l'écran latéral 42, le filet supérieur 19, et les guides 23 sur lesquels glisse l'axe 22 auquel est fixée l'extrémité du filet 19.Figures 6 and 7 show the front of the device. These figures show the upper part of the legs 4 which, in their lower extension, constitute the front supports of the structure on the ground; on both sides of the uprights and the feet, two screens are arranged preventing the ball from escaping; the upper part of Figure 6, shows the hatch 16. In Figure 7, there is shown, for better understanding, an enlargement which shows the feet 4, the side screen 42, the upper thread 19, and the guides 23 on which the axis 22 slides to which the end of the thread 19 is fixed.
  • La figure 4 montre la disposition de l'appareil lorsqu'il est utilisé pour l'entraînement au tennis, la trappe 16 étant soulevée et ses deux plaques 30 et 31 étant séparées par pivotement autour de la charnière 32. Dans ce cas, le volet rectangulaire 37 cesse de s'appuyer sur le filet 45 qui et tiré vers l'extérieur par la trappe et sort par la partie supérieure de l'appareil. Ainsi, lorsque la trappe est parfaitement maintenue au moyen des tiges 27 et 35, la balle lancée à la partie inférieure de l'appareil, sort à l'extérieur, par la partie supérieure de l'appareil, et tombe tout en étant freinée au sommet du filet 19 qui la dirige alors vers le joueur, dans une position totalement distincte de celle qui est obtenue quand on joue à la manière d'un fronton, ainsi que cela est représenté sur la figure 1. On peut en outre faire varier la position de chute de la balle, uniquement en déplaçant le filet 19 et en faisant varier vers l'arrière ou l'avant, la position de la barre 22 qui retient l'extrémité inférieure de ce filet. Cette barre peut glisser à l'intérieur des guides 23 pour réduire la tension créée à l'autre extrémité 21 du filet 19, en permettant la contraction du ressort 13.FIG. 4 shows the arrangement of the device when it is used for tennis training, the hatch 16 being raised and its two plates 30 and 31 being separated by pivoting around the hinge 32. In this case, the flap rectangular 37 ceases to rely on the net 45 which, pulled outwards by the hatch and exits through the upper part of the device. Thus, when the hatch is perfectly maintained by means of rods 27 and 35, the ball launched at the bottom of the device, leaves outside, through the top of the device, and falls while being braked at top of the net 19 which then directs it towards the player, in a position completely distinct from that which is obtained when one plays in the manner of a pediment, as that is shown in FIG. 1. One can also vary the ball drop position, only by moving the net 19 and varying backwards or forwards, the position of the bar 22 which retains the lower end of this net. This bar can slide inside the guides 23 to reduce the tension created at the other end 21 of the thread 19, by allowing the spring 13 to contract.
  • La figure 5 montre une autre vue de l'appareil selon l'invention, pour l'entraînement au tennis, la trappe 16 étant ouverte, les deux plaques 30 et 31, qui la constituent, étant superposées et parallèles entre elles.FIG. 5 shows another view of the apparatus according to the invention, for tennis training, the hatch 16 being open, the two plates 30 and 31, which constitute it, being superimposed and parallel to one another.
  • Les figures 8, 9, 10 et 11 représentent un second mode de réalisation d'une trappe de fermeture de l'appareil à sa partie supérieure. Sur ces figures ladite trappe 48 forme un élément longitudinal plan, réuni au moyen de deux axes 49 et 50, transversaux à la structure générale 1. Le déplacement de cette trappe est réalisé au moyen d'une tige 27' comportant deux orifices 51 et 52 permettant l'introduction de l'axe 50 faisant saillie.Figures 8, 9, 10 and 11 show a second embodiment of a device closing flap at its upper part. In these figures, said hatch 48 forms a flat longitudinal element, joined by means of two axes 49 and 50, transverse to the general structure 1. The displacement of this hatch is carried out by means of a rod 27 'comprising two orifices 51 and 52 allowing the introduction of the projecting axis 50.

La caractéristique fondamentale de ce second mode de réalisation de la trappe 48, réside dans le fait que la trappe est divisée transversalement en deux plaques rectangulaires 51 et 53 réunies par une charnière 54 et dirigées de l'arrière vers l'avant de la structure. Ceci permet à cette trappe de prendre la forme d'un toît à double pente, en s'assurant que l'axe 50 est parfaitement introduit à l'intérieur de l'orifice correspondant de la tige 2T, grâce à un ressort 55. Le mouvement de la tige 27, est transmis à la trappe 48 au moyen d'une barre articulée 56 fixée en 57 à la plaque 52, placée au sommet de la trappe. Ceci permet, comme on peut l'observer sur les figures 10 et 11, d'ouvrir et de fermer la trappe et de la disposer selon une position quelconque présentant la forme d'un toît à double pente, qui diffère sur la figure 10 et sur la figure 11; pour cela il suffit d'un mouvement de rotation de l'ensemble et de la tige 27' qui comporte deux orifices 51 et 52 de réglage de sa hauteur, permettant ainsi de faire varier la position du point de rotation de l'ensemble.The fundamental characteristic of this second embodiment of the hatch 48 lies in the fact that the hatch is divided transversely into two rectangular plates 51 and 53 joined by a hinge 54 and directed from the rear to the front of the structure. This allows this hatch to take the form of a double-pitched roof, ensuring that the axis 50 is perfectly introduced inside the corresponding orifice of the rod 2T, by means of a spring 55. The movement of the rod 27, is transmitted to the hatch 48 by means of an articulated bar 56 fixed at 57 to the plate 52, placed at the top of the hatch. This makes it possible, as can be seen in FIGS. 10 and 11, to open and close the hatch and to arrange it in any position having the shape of a double slope roof, which differs in FIG. 10 and in Figure 11; for this it is sufficient to rotate the assembly and the rod 27 ′ which has two orifices 51 and 52 for adjusting its height, thus making it possible to vary the position of the point of rotation of the assembly.

La figure 12 représente un second mode de réalisation de la structure 1 dans lequel le pied avant 4 est décalé vers l'arrière, laissant dépasser les montants avant 8 et 57 qui peuvent tourner autour de leurs points de jonction 58 et 59 pour que l'ensemble de la structure puisse être plié.FIG. 12 represents a second embodiment of the structure 1 in which the front leg 4 is offset towards the rear, allowing the front uprights 8 and 57 to protrude which can rotate around their junction points 58 and 59 so that the whole structure can be folded.

Une amélioration de l'ensemble de la structure de l'appareil peut être apportée grâce à un axe 60 autour duquel la partie avant du filet 12, forme une boucle. Une portion de cette boucle, proche de l'extrémité du filet passe sur un autre axe 61. Cet axe 61 est rendu mobile par une pièce double 62. Cette pièce permet de déplacer le filet selon des positions représentées sur les deux vues de la figure 13. Ces vues montrent comment on peut faire varier de façon importante l'angle de la zone inférieure du filet par rapport au sol et obtenir ainsi différentes directions de la balle, suivant une parabole plus ou moins étirée.An improvement in the overall structure of the device can be made by virtue of an axis 60 around which the front part of the net 12 forms a loop. A portion of this loop, close to the end of the net passes over another axis 61. This axis 61 is made movable by a double part 62. This part makes it possible to move the net according to the positions shown in the two views of the figure 13. These views show how it is possible to vary the angle of the lower zone of the net significantly with respect to the ground and thus obtain different directions of the ball, according to a more or less stretched parabola.

Les différents modes de réalisation de l'appareil de l'invention, qui ont été décrits en regard des dessins annexés montrent le grand nombre de possibilités offertes par cet appareil, qui peut être utilisé comme un partenaire efficace par toute personne intéressée par l'entraînement au tennis ou à un jeu analogue, que cette personne souhaite apprendre ce jeu, ou qu'elle en ait déjà une connaissance approfondie.The various embodiments of the apparatus of the invention, which have been described with reference to the accompanying drawings, show the large number of possibilities offered by this apparatus, which can be used as an effective partner by anyone interested in training. in tennis or a similar game, whether this person wishes to learn this game, or whether he already has a thorough knowledge of it.

Claims (12)

1. Apparatus for training in tennis, constituted by a receptacle defined by uprights (7) forming a structure (1) of parallelepipedal external shape which is closed on its sides and supported by four legs (2, 4), one pair of which carries movable portions permitting height variation of these latter, the lower upright of the structure being provided with a front extension which is articulated at its point of junction and is provided with a tie-rod for rigidifying the complete assembly, said extension as well as the remainder of the uprights being intended to provide assistance in supporting a net (12) which is subdivided into different zones and has a tendency to be parabolic in shape, closes the apparatus both at the bottom and at the rear, which has a front extension and remains in a stationary position by means of a balance weight placed at its bottom portion, said net (12) being continuously stretched at the rear end by means of a transverse plate (47) in its first zone whilst the end of a second zone (44) is attached to a pivoting trap door (16) which closes the apparatus in the top rear portion thereof, said trap door being provided with another net (19) suspended from one of the plates which form said trap door whilst the remainder of the top surface is covered by a net (19) which is folded so as to form an angle about a pin (20) with its ends attached by means of two bars, one of which is connected to a tension spring whilst the other slides within lateral guides (23), thus making it possible to move said ends towards each other or away from each other so as to produce a greater length of the net (19) whilst the apparatus is closed at the rear end by two plates connected together by means of a hinge so that the top plate should have the possibility of moving and uncovering the internal portion of the apparatus in a larger zone than when it is lowered whereas on two sides of the apparatus which are visible from the front, there exist two wide portions (42) which assist the player in centring the entrance opening of the apparatus.
2. Apparatus in accordance with claim 1, characterized in that said movable trap door (16) is rigidly fixed to a means (24) for controlling the rotation of said trap door about a pin (25) in order to lift the trap door and a corresponding zone (15) of the bottom net (12) above the top net (19) and in order to permit delivery of a ball through an opening of said top portion, said opening being formed as a result of lifting of the trap door in order that the ball should fall back on the top net (19) towards the player.
3. Apparatus in accordance with claim 2, characterized in that the trap door (16) is provided with a rod (27) for retaining the trap door in a raised position, said rod being rigidly fixed to the trap door and having one end (27) which engages in an orifice of an extension of one of the rear legs (2).
4. Apparatus in accordance with claim 3, characterized in that the trap door (16) is made up of two rectangular plates (30, 31) pivoted to each other by means of a hinge (32), one of said plates being rigidly fixed to another rod (35) having one end attached to an extension of another rear leg so as to ensure that the two plates (30, 31) are superposed and parallel at the time of opening of the trap door or that these two plates are in an adjustable open position with respect to each other.
5. Apparatus in accordance with claim 3, characterized in that the trap door (16) is made up of two rectangular plates (52, 53) pivoted to each other by means of a hinge (54) which is directed from the rear end to the front end of the structure, a first plate (52) being connected to the lateral rear portion of the structure by means of a first cross-pin (49), and a second plate (53) being connected to the lateral rear portion of the structure by means of a second cross-pin (51), a cross-bar (56) rigidly fixed to the first plate and pivotally attached to a rod (2T) in which are formed orifices (50, 52) for adjusting its height, said orifices being capable of engaging on the second pin (51), and the rod (27') being capable of rotating about said second pin so as to open the trap door and, depending on the adjustment orifice chosen, to give the trap door the shape of a ridge- roof.
6. Apparatus in accordance with claim 2, characterized in that it comprises a transverse rectangular flap (37) connected to the trap door (16) so as to bear on the bottom net (12) in the vicinity of said trap door when this latter is closed and so as to withdraw from the bottom net (12) when said trap door (16) is open.
7. Apparatus in accordance with any one of claims 1 to 6, characterized in that the top net (19) has an upper end (21) and a lower end (22) and means (23, 13) for moving the lower end (22) towards or away from the upper end (21).
8. Apparatus in accordance with any one of claims 1 to 7, characterized in that the bottom net
(12) comprises means (8, 9, 10, 11 or 60, 61, 62) for lengthening or shortening the bottom zone of the bottom net and for orienting said bottom zone with respect to the ground in order to ensure that a ball which falls from the top net (19) rebounds on said bottom zone while following a parabolic path which depends on the orientation of said bottom zone.
9. Apparatus in accordance with any one of claims 1 to 8, characterized in that each rear leg (2) is fitted with a wheel (2) for moving the apparatus.
10. Apparatus in accordance with any one of claims 1 to 8, characterized in that each front leg (4) comprises means (5) for adjusting the height of the bottom portion of the apparatus.
11. Apparatus in accordance with any one of claims 1 to 8, characterized in that said transverse cover (17) is at least partly orientable.
EP86402232A 1985-10-11 1986-10-08 Training apparatus for tennis Expired - Lifetime EP0220111B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES289954 1985-10-11
ES1985289954U ES289954Y (en) 1985-10-11 1985-10-11 NEW APPARATUS FOR TENNIS TRAINING

Publications (3)

Publication Number Publication Date
EP0220111A2 EP0220111A2 (en) 1987-04-29
EP0220111A3 EP0220111A3 (en) 1988-04-06
EP0220111B1 true EP0220111B1 (en) 1990-09-12

Family

ID=8438020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402232A Expired - Lifetime EP0220111B1 (en) 1985-10-11 1986-10-08 Training apparatus for tennis

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EP (1) EP0220111B1 (en)
DE (1) DE3674138D1 (en)
ES (1) ES289954Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111629794A (en) * 2018-01-18 2020-09-04 亚历山大·伦佛斯 Tennis ball wall

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2676147T3 (en) * 2009-12-10 2018-07-17 Miracle Inc. Tennis training device
US11691065B1 (en) * 2021-08-18 2023-07-04 Mario Llano Tennis practice apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161463A (en) * 1937-07-06 1939-06-06 Harold P Frost Ball returning target for table tennis
US2458105A (en) * 1946-04-08 1949-01-04 Vernon D Sell Golf practice device
FR2408364A2 (en) * 1977-11-10 1979-06-08 Torres Remy Training aid for ball games e.g. football - comprises net tensioned horizontally between posts of portal frame
SE424813B (en) * 1979-02-15 1982-08-16 Esselte Studium Ab TENNIS OR SQUASH TRAINING EQUIPMENT
US4333646A (en) * 1979-08-01 1982-06-08 Robert Pfeilsticker Tennis practice and training aid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111629794A (en) * 2018-01-18 2020-09-04 亚历山大·伦佛斯 Tennis ball wall
CN111629794B (en) * 2018-01-18 2021-11-09 亚历山大·伦佛斯 Tennis ball wall

Also Published As

Publication number Publication date
ES289954U (en) 1986-04-01
DE3674138D1 (en) 1990-10-18
EP0220111A3 (en) 1988-04-06
ES289954Y (en) 1987-09-16
EP0220111A2 (en) 1987-04-29

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