EP0520929A1

EP0520929A1 - Electromecanical apparatus for launching balls, in particular footballs

Info

Publication number: EP0520929A1
Application number: EP92480091A
Authority: EP
Inventors: Jean-Pierre Magnone; Roberto Uttinacci
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-24
Filing date: 1992-06-23
Publication date: 1992-12-30
Anticipated expiration: 2012-06-23
Also published as: PL168790B1; AU666658B2; ES2072735T3; DK0520929T3; EP0520929B1; FI96180B; FI935849A; AU2174092A; CA2111582A1; FI935849A0; WO1993000138A1; NO300668B1; US5465978A; NO934336D0; FR2677892B1; FR2677892A1; ATE119795T1; DE69201685D1; DE69201685T2; FI96180C

Abstract

Training apparatus for launching balls, in particular footballs, of the type using a magazine containing the balls (3). The said balls (3) are led via a chute (4) and by means of gravity, one by one, to a firing station (5), where a means acts as a launching arm. The lower end (8) of the chute (4) for supplying the balls (3), which emerges at the firing station (5), is provided with a single dispenser of balls (3). The ejection arm (10) is mounted integrally with a shaft (11) mounted on bearings (12, 13, 14) and equipped with a return spring (42) on which a launching arm (15) is also mounted, the said launching arm (15) is actuated by a motorisation arm (16) which strikes the launching arm (15) in rotation, the motorisation arm (16) comprises an adjustment means which makes it possible to vary its radius (R, R) so as to give greater or lesser power to its lever arm. The firing station (5) is formed by a cradle which is provided with means for adjustment in horizontal (F7, F8) and vertical (F9, F10) translation. Football training apparatus. <IMAGE>

Description

L'invention a pour objet un appareil électromécanique d'entraînement pour lancer des ballons, notamment de football.The invention relates to an electromechanical training device for throwing balls, in particular footballs.

L'état de la technique peut être défini par les brevets suivants :The state of the art can be defined by the following patents:

FR-A-2.334.381 "Method of launching soccer balls towards a determined location, characterized in that, by removing balls from a store, mechanically or by gravity, they are brought one by one to a post of shooting and they are launched by applying to them at the desired place a blow whose force is adjustable. We apply to the ball a shot oriented at will horizontally or upwards. We can modify at will the position of the point of impact on the ball in a range between the horizontal median plane of the ball and a plane passing through the center of this ball and making with this horizontal plane a downward angle greater than 30 °. The percussion is created by a bat having substantially the length of the leg and oscillating like a pendulum. The apparatus comprises a balloon magazine, a device for placing these balloons, which opens out at the shooting station, and a percussion mechanism, as well as an apparatus to control this device tif of establishment and this mechanism. "
FR-A-2.433.956: "Apparatus comprising, in accordance with the main patent, a magazine, a shooting station and a positioning device making it possible to pick up the balls from the magazine and to place them individually at the shooting station, this apparatus comprising in addition, a percussion mechanism and a control device intended to enable the balls to be thrown with an adjustable intensity force, the point of impact of which can be selected on the ball. on a pivoting lever, the pivoting of this lever making it possible to adjust the position of the percussion mechanism relative to the ball. Application to the training of footballers. "
FR-A-2.409.059: "Balloon throwing apparatus characterized in that it consists of a tube provided at one of its ends with an orifice of section greater than the section of the balloons to be thrown, thus that of a supply device connected to a reserve of balloons capable of introducing a balloon into the tube, the tube containing an expulsion device capable of expelling the balloon out of the tube at a given time and under predetermined conditions . "
FR-A-2.580.507: "The invention relates to sports equipment. The device which is the subject of the invention is characterized in particular in that the mechanism for synchronizing the movements of the pusher and the batter comprises a crank mechanically connected to the pusher and mounted on a drive shaft supported by the base, arranged substantially parallel to the control shaft and rotating in the opposite direction thereof, the crank being movable in rotation, jointly with the drive shaft and at the speed of the latter, as well as at a higher speed than the latter during the movement of a ball by the pusher towards the striking position. It is advantageous to use the device in question for throwing balls, balloons or the like for training especially tennis, football, hockey players. "
FR-A-2.577.813: "The invention relates to sports equipment. The device which is the subject of the invention is characterized in that it includes a chamber for fixing balls or the like, in the striking position, connected to the separator, communicating with the latter, containing the pusher and formed by side walls, an upper wall and a lower wall, one of said side walls being disposed on the side of the angular plane of movement of the striker, transversely to the shaft of the control, while the function of side wall opposite the side wall is fulfilled by the pusher during the fixing of balls or the like and said walls of the chamber being pierced with openings for the entry and exit of the batter and for passing thrown balls or the like. device in question can be used, in particular for training tennis, football, hockey players. "

On peut citer également les brevets :Patents can also be cited:

DE-A-2 716 643
BE.A.649142: the subject of the invention is a ball-throwing or ball-throwing apparatus, in particular a tennis ball-thrower, characterized by the following points, taken separately or in combination:
1 ° The ball-throwing apparatus is constituted by means of a chassis on which is articulated an arm which is moved by an elastic means and one end of which strikes the ball, held in the apparatus by tightening, to give this ball the impetus necessary for its launch.
EP 0 213 195: method for the directed launch of balloons, in which the balloon from an initial position of launching in a retaining element, is accelerated on an acceleration path by a hunting arm moving along 'a circular trajectory and is then released, characterized in that at the end of the acceleration path, the direction of the normal of the force of the hunting arm, which passes through the center of the ball and through the point of impact , coincides with the desired launching direction, and that in order to obtain a balloon launch subjected to a gyratory movement and whose shooting direction can be chosen, the retaining element is moved around a center of rotation, the radius of rotation of the retaining element essentially corresponding to the radius of the circular path of the flushing arm.

Tous ces brevets décrivent des lance-ballons automatiques réglables. Ces lance-ballons présentent de nombreux inconvénients.All these patents describe adjustable automatic balloon launchers. These balloon launchers have many disadvantages.

De nombreux appareils ne présentent pas des fonctions multiples : puissance de tir réglable, trajectoire réglable en longueur, trajectoire réglable en hauteur, effet gauche ou droit, cadence de tir réglable, précision des tirs.Many devices do not have multiple functions: adjustable firing power, adjustable trajectory in length, adjustable trajectory in height, left or right effect, adjustable rate of fire, accuracy of shots.

Les appareils qui comportent des fonctions multiples présentent les inconvénients suivants :

Ces appareils sont chers, encombrants ; du fait de leur complexité, ils sont peu fiables et leur maintenance est élevée. Il n'est pas possible d'obtenir deux réglages en même temps.

Devices with multiple functions have the following disadvantages:

These devices are expensive, bulky; because of their complexity, they are unreliable and their maintenance is high. It is not possible to obtain two settings at the same time.

L'appareil selon l'invention comporte toutes les fonctions multiples pour un meilleur rendement des entraînements. De plus, l'appareil selon l'invention est simple de conception, donc fiable, et facile à entretenir. Il est peu encombrant. Il peut travailler dans les deux sens horizontal et vertical. Enfin, il est d'un coût beaucoup plus faible que les appareils équivalents actuellement sur le marché. Il est donc à la portée de tous les clubs sportifs.The apparatus according to the invention includes all the functions multiple for better training performance. In addition, the device according to the invention is simple in design, therefore reliable, and easy to maintain. It is space-saving. It can work in both horizontal and vertical directions. Finally, it is much lower cost than equivalent devices currently on the market. It is therefore within the reach of all sports clubs.

L'appareil est une machine à lancer les ballons de football qui permet l'entraînement de l'enfant au joueur professionel et, ce, pour tous les gestes techniques qui nécessitent le concours d'une autre personne, l'amorti du pied et de la poitrine, reprise de volée, jeu de tête et entraînement (spécifique du goal). Grâce à ses cinq caractéristiques : puissance des tirs réglable, angle des tirs orienté, cadence des tirs variable, commande à distance électronique, chargeur de ballons à grande capacité, cet appareil est le complément indispensable de l'entraîneur. Le mécanisme et le fonctionnement de l'appareil sont simples et entièrement électro-mécaniques ce qui lui donne une robustesse et une fiabilité absolues. Les seuls éléments sujets à usure sont les coussinets de rotation et le ressort principal. Leur remplacement ne nécessite pas de qualification spéciale. L'appareillage électrique fonctionne en 24 volts et il est donc absolument sûr et conforme aux normes européennes. L'alimentation principale est en 220 volts.The device is a soccer ball throwing machine which allows the training of the child to the professional player and, for all technical gestures which require the assistance of another person, the cushioning of the foot and chest, volley, head game and training (specific to the goal). Thanks to its five characteristics: adjustable power of shots, angle of shots directed, variable rate of shots, electronic remote control, high capacity ball charger, this device is the essential complement of the trainer. The mechanism and operation of the device are simple and fully electro-mechanical which gives it absolute robustness and reliability. The only items subject to wear are the rotation bearings and the main spring. Their replacement does not require any special qualification. The electrical equipment operates on 24 volts and is therefore absolutely safe and complies with European standards. The main power supply is 220 volts.

A cet effet, l'appareil d'entraînement pour lancer des ballons, notamment de football, est du type utilisant un magasin contenant des ballons, lesdits ballons sont conduits par une goulotte et par gravité, un à un, à un poste de tir, où un moyen faisant office de bras de lancement les percute à un point de percussion réglable, par des moyens de réglage et avec une force réglable par des moyens de réglage de la puissance de tir. L'extrémité inférieure de la goulotte d'amenée des ballons, qui débouche au niveau du poste de tir, est pourvue d'un distributeur unique de ballons, tel qu'un levier articulé actionné par un électro-aimant, de manière à libérer un à un les ballons qui descendent par gravité de la goulotte.To this end, the training apparatus for throwing balls, in particular soccer balls, is of the type using a magazine containing balls, said balls are led by a chute and by gravity, one by one, to a shooting station, where a means acting as launching arm strikes them at an adjustable point of percussion, by adjustment means and with an adjustable force by means of adjustment of the firing power. The lower end of the balloon supply chute, which opens out at the shooting station, is provided with a single balloon distributor, such as an articulated lever actuated by an electromagnet, so as to release a one balloons descending by gravity from the chute.

Ledit appareil est caractérisé par le fait que le bras d'éjection est monté solidaire d'un axe monté sur paliers et équipé d'un ressort de rappel sur lequel est monté également un bras de lancement, ledit bras de lancement est actionné par un bras de motorisation qui vient armer le bras de lancement en rotation, le bras de motorisation comporte un moyen de réglage qui permet de faire varier son rayon de manière à bander plus ou moins le ressort de rappel.Said apparatus is characterized in that the ejection arm is mounted integral with an axis mounted on bearings and equipped with a return spring on which is also mounted a launch arm, said launch arm is actuated by a motorization arm which comes to arm the launching arm in rotation, the motorization arm comprises an adjustment means which makes it possible to vary its radius so as to more or less band the spring reminder.

Le poste de tir est formé par un berceau qui reçoit le ballon avant la frappe, ledit berceau est pourvu de moyens de réglage en translation horizontale et en translation verticale.The shooting station is formed by a cradle which receives the ball before striking, said cradle is provided with adjustment means in horizontal translation and in vertical translation.

Selon un mode de réalisation, l'axe sur lequel sont montés le bras d'éjection et le bras de lancement est équipé d'une butée d'arrêt.According to one embodiment, the axis on which the ejection arm and the launch arm are mounted is equipped with a stopper.

Le moyen de réglage qui permet de régler le rayon du bras de motorisation est un arbre creux rotatif monté entre deux paliers, un moto-réducteur fait tourner ledit arbre sur lequel est monté perpendiculairement le bras de motorisation, ce bras est équipé d'une crémaillère, qui engrène avec un pignon, disposé dans l'arbre creux, ledit pignon est actionné par un axe muni à son extrémité d'un volant qui apparaît à l'extérieur de l'appareil et permet ainsi de régler le rayon du bras de motorisation.The adjustment means which makes it possible to adjust the radius of the motorization arm is a rotary hollow shaft mounted between two bearings, a geared motor rotates said shaft on which the motorization arm is mounted perpendicularly, this arm is equipped with a rack , which meshes with a pinion, arranged in the hollow shaft, said pinion is actuated by an axis provided at its end with a flywheel which appears outside the apparatus and thus makes it possible to adjust the radius of the motorization arm. .

Les moyens de réglage en translation du berceau sont, pour la translation horizontale, une bielle qui est actionnée par un moto-réducteur, tandis que le berceau est monté sur des glissières horizontales.The means for adjusting the translation of the cradle are, for horizontal translation, a connecting rod which is actuated by a geared motor, while the cradle is mounted on horizontal slides.

Pour la translation verticale, le berceau est équipé de colonnes verticales le long desquelles le berceau peut monter ou descendre par l'action de cames solidaires d'un arbre horizontal qui est actionné en rotation par un moto-réducteur, une chaîne de transmission et des roues.For vertical translation, the cradle is equipped with vertical columns along which the cradle can go up or down by the action of cams integral with a horizontal shaft which is rotated by a gear motor, a transmission chain and wheels.

Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention.The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

La figure 1 est une vue schématique de l'appareil, mettant en évidence la goulotte d'alimentation en ballons, le poste de tir avec son berceau, le volant de réglage de la puissance de tir.Figure 1 is a schematic view of the device, highlighting the balloon feed chute, the shooting station with its cradle, the firing power adjustment wheel.

La figure 2 est une vue schématique mettant en évidence l'action du bras de motorisation qui vient armer le bras de lancement avec un rayon R qui bande le ressort de rappel sur une courte course.Figure 2 is a schematic view showing the action of the motor arm which comes to arm the launch arm with a radius R which band the return spring on a short run.

La figure 3 est une vue selon la figure 2, mais où le rayon est "r" est plus petit, ce qui augmente la course qui permet de bander moins le ressort de rappel.Figure 3 is a view according to Figure 2, but where the radius is "r" is smaller, which increases the stroke which allows to band less the return spring.

La figure 4 est une vue en perspective du bras d'éjection, du bras de lancement, de l'axe sur lequel ils sont montés, des paliers de cet axe et du ressort de rappel que le bras de motorisation réglable en longueur peut bander plus ou moins.Figure 4 is a perspective view of the ejection arm, the launch arm, the axis on which they are mounted, the bearings of this axis and the return spring that the motor arm adjustable in length can band more or less.

La figure 5 est une vue en perspective du bras de motorisation et du moyen de réglage de son rayon.Figure 5 is a perspective view of the motor arm and the means for adjusting its radius.

La figure 6 est une vue en perspective du berceau.Figure 6 is a perspective view of the cradle.

La figure 7 est une vue en coupe du berceau selon E représenté à la figure 6.FIG. 7 is a sectional view of the cradle according to E shown in FIG. 6.

La figure 8 est une vue de l'extrémité inférieure de la goulotte d'amenée des ballons avec son distributeur de ballons.Figure 8 is a view of the lower end of the balloon supply chute with its balloon dispenser.

L'appareil pour lancer des ballons est représenté en perspective à la figure 1. Cet appareil est disposé dans un bâti 1 avec, dans sa partie supérieure, un orifice 2 qui permet d'alimenter en ballons 3 l'appareil. Cet orifice 2 aboutit à un magasin contenant lesdits ballons 3. Lesdits ballons 3 sont conduits par une goulotte 4 à un poste de tir 5 qui débouche par une fenêtre 6 sur la face avant 7 de l'appareil. L'extrémité inférieure 8 de la goulotte 4 d'amenée des ballons 3 débouche au niveau du poste de tir 5. Cette extrémité 8 de la goulotte 4 est pourvue d'un distributeur unique de ballons 3, tel qu'un levier articulé 9, actionné par un électro-aimant non représenté sur la figure, de manière à libérer un à un les ballons 3 qui descendent par gravité de la goulotte 4. Les flèches F1 et F2 représentent à la figure 8 l'action du levier articulé 9 qui libère un à un les ballons 3 qui tombent par gravité de la goulotte 4.The apparatus for launching balloons is shown in perspective in FIG. 1. This apparatus is arranged in a frame 1 with, in its upper part, an orifice 2 which makes it possible to supply the apparatus with balloons 3. This orifice 2 leads to a store containing said balloons 3. Said balloons 3 are led by a chute 4 to a shooting station 5 which opens out through a window 6 on the front face 7 of the device. The lower end 8 of the chute 4 for supplying the balloons 3 opens out at the shooting station 5. This end 8 of the chute 4 is provided with a single distributor of balloons 3, such as an articulated lever 9, actuated by an electromagnet not shown in the figure, so as to release one by one the balloons 3 which descend by gravity from the chute 4. The arrows F1 and F2 represent in Figure 8 the action of the articulated lever 9 which releases one by one the balloons 3 which fall by gravity from the chute 4.

Dans les figures 2, 3, 4, et 5, sont représentés des moyens de réglage de la puissance du tir et d'éjection du ballon.In Figures 2, 3, 4, and 5, are shown means for adjusting the power of the shot and ejecting the ball.

Dans la figure 4, le bras d'éjection 10 est monté solidaire d'un axe 11, monté sur des paliers 12, 13, 14. Cet axe 11 peut tourner selon les flèches F3, F4. Sur cet axe 11, est également monté un bras de lancement 15 qui oscille également dans le sens des flèches F3 et F4. Sur cet axe 11, sont montés un ressort de rappel 42 et une butée d'arrêt 43.In Figure 4, the ejection arm 10 is mounted integral with an axis 11, mounted on bearings 12, 13, 14. This axis 11 can rotate according to the arrows F3, F4. On this axis 11, is also mounted a launch arm 15 which also oscillates in the direction of the arrows F3 and F4. On this axis 11, a return spring 42 and a stopper 43 are mounted.

Comme représenté dans les figures 2 et 3, le bras de lancement 15 est armé par le bras de motorisation 16. A cet effet, le bras de motorisation 16 est réglable en longueur et rotatif, son extrémité se termine par un galet 17 qui vient en contact avec le bras de lancement 15. Les axes de rotation des deux bras 15 et 16 sont distants de d. En tournant, le bras de motorisation 16 va venir en contact, par son galet 17, avec le bras de lancement 15, il va faire tourner le bras de lancement 15 donc l'axe 11 et bander ainsi le ressort de rappel 42 et ce, jusqu'à ce que l'extrémité du bras de motorisation échappe par son galet 17 l'arc de cercle, pour un rayon R, sera donc a (voir la figure 2).As shown in Figures 2 and 3, the launch arm 15 is armed by the motorization arm 16. For this purpose, the motorization arm 16 is adjustable in length and rotatable, its end ends with a roller 17 which comes into contact with the launching arm 15. The axes of rotation of the two arms 15 and 16 are distant from d . By turning, the motorization arm 16 will come into contact, by its roller 17, with the launching arm 15, it will rotate the launching arm 15 therefore the axis 11 and thus band the return spring 42 and this, until the end of the motorization arm escapes via its roller 17 the arc of a circle, for a radius R, will therefore be a (see FIG. 2).

Pour un rayon r du bras de motorisation 16 qui est réglable en longueur, l'axe de cercle sera A, le ressort 42 sera plus bandé que dans le cas précédent, on obtiendra donc après échappement du bras de motorisation 16 du bras de lancement 15, une puissance de tir très grande au niveau du bras d'éjection 10 qui percute le ballon 3.For a radius r of the motor arm 16 which is adjustable in length, the circle axis will be A, the spring 42 will be more banded than in the previous case, so after exhausting the motor arm 16 of the launch arm 15 , a very high firing power at the level of the ejection arm 10 which strikes the ball 3.

Le moyen de réglage qui permet de régler le rayon du bras de motorisation 16 est un arbre creux 18, rotatif, monté entre deux paliers 19 et 20. Un moto-réducteur 21 fait tourner ledit arbre 18 sur lequel est monté, perpendiculairement, le bras de motorisation 16. Ce bras de motorisation 16 est équipé d'une crémaillère 22 qui engrène avec un pignon 23 disposé dans l'arbre creux 18. Le pignon 23 est actionné en rotation par un axe 24 muni à son extrémité d'un volant 40 qui est manoeuvrable à l'extérieur de l'appareil 1 et qui permet, en faisant tourner le pignon 23 sur la crémaillère, de régler le rayon du bras de motorisation 16, dans un sens F5 ou F6, ce qui augmente ou diminue ledit rayon du bras de motorisation 16 dont le galet 17 vient en contact avec le bras de lancement 16 pour bander plus ou moins le ressort de rappel 42.The adjustment means which makes it possible to adjust the radius of the motorization arm 16 is a hollow rotary shaft 18 mounted between two bearings 19 and 20. A geared motor 21 rotates said shaft 18 on which the arm is mounted perpendicularly motorization 16. This motorization arm 16 is equipped with a rack 22 which meshes with a pinion 23 disposed in the hollow shaft 18. The pinion 23 is actuated in rotation by a pin 24 provided at its end with a flywheel 40 which is maneuverable outside the device 1 and which allows, by rotating the pinion 23 on the rack, to adjust the radius of the motor arm 16, in a direction F5 or F6, which increases or decreases said radius of the motorization arm 16, the roller 17 of which comes into contact with the launching arm 16 to more or less band the return spring 42.

Le poste de tir 5 est formé par un berceau 25 qui reçoit le ballon 3 à lancer avant la frappe. Ledit berceau 25 est pourvu de moyens de réglages en translation horizontale F8, F7, et en translation verticale F10, F9.The shooting station 5 is formed by a cradle 25 which receives the ball 3 to be thrown before striking. Said cradle 25 is provided with adjustment means in horizontal translation F8, F7, and in vertical translation F10, F9.

Les moyens de réglage en translation du berceau 25 sont pour la translation horizontale F8, F7, une bielle 26 qui est actionnée par un moto-réducteur 27. L'arbre dudit moto-réducteur 27 entraîne une roue 28, une chaîne 29 et actionne un plateau manivelle 30 qui manoeuvrent le berceau 25. Ledit berceau 25 est monté sur des glissières horizontales non représentées.The means for adjusting the translation of the cradle 25 are for the horizontal translation F8, F7, a connecting rod 26 which is actuated by a geared motor 27. The shaft of said geared motor 27 drives a wheel 28, a chain 29 and actuates a crank plate 30 which maneuver the cradle 25. Said cradle 25 is mounted on horizontal slides not shown.

Pour la translation verticale, le berceau 25 est équipé de colonnes verticales 31, 32, le long desquelles le berceau 25 peut monter ou descendre par l'action de cames 33, 34, solidaires d'un arbre horizontal 35, monté sur des paliers 36 et 37. Ledit arbre horizontal 35 est actionné en rotation par un moto-réducteur 41 et une chaîne de transmission 38 qui agit sur un pignon 39, disposée à l'extrémité de l'arbre horizontal 35.For vertical translation, the cradle 25 is equipped with vertical columns 31, 32, along which the cradle 25 can go up or down by the action of cams 33, 34, integral with a horizontal shaft 35, mounted on bearings 36 and 37. Said horizontal shaft 35 is actuated in rotation by a geared motor 41 and a transmission chain 38 which acts on a pinion 39, disposed at the end of the horizontal shaft 35.

REFERENCES

1. Bâti
2. Orifice du bâti
3. Ballons
4. Goulotte
5. Poste de tir
6. Fenêtre
7. Face avant de l'appareil
8. Extrémité inférieure de la goulotte
9. Levier articulé
10. Bras d'éjection
11. Axe
12. 13. 14. Paliers
15. Bras de lancement
16. Bras de motorisation
17. Galet
18. Arbre creux
19.20. Paliers
21. Moto-réducteur
22. Crémaillère
23. Pignon
24. Axe du pignon
25. Berceau
26. Bielle
27. Moto-réducteur
28. Roue
29. Chaîne
30. Plateau manivelle
31. 32. Colonnes verticales
33.34. Cames
35. Arbre horizontal
36.37. Paliers
38. Chaîne de transmission
39. Pignon
40. Volant
41. Moto-réducteur
42. Ressort de rappel
43. Butée d'arrêt

F1, F2, F3, F4, F5, F6, F7, F8, F9, F10. Flèches
R. Grand rayon du bras de motorisation
r. Petit rayon du bras de motorisation
d. Distance entre bras de motorisation et bras de lancement

1. Frame
2. Frame hole
3. Balloons
4. Chute
5. Shooting post
6. Window
7. Front of the device
8. Lower end of the chute
9. Articulated lever
10. Ejection arm
11. Axis
12. 13. 14. Landings
15. Launch arm
16. Motorization arm
17. Pebble
18. Hollow shaft
19.20. Bearings
21. Gear motor
22. Rack
23. Pinion
24. Pinion axis
25. Cradle
26. Rod
27. Gear motor
28. Wheel
29. Chain
30. Crank tray
31. 32. Vertical columns
33.34. Cams
35. Horizontal tree
36.37. Bearings
38. Transmission chain
39. Pinion
40. Steering wheel
41. Gear motor
42. Return spring
43. Stopper

F1, F2, F3, F4, F5, F6, F7, F8, F9, F10. Arrows
R. Large radius of the motor arm
r . Small radius of the motor arm
d . Distance between motor arm and launch arm

Claims

Training device for throwing balls, in particular soccer balls, of the type using a magazine containing balls (3), said balls (3) are led by a chute (4) and by gravity, one by one, to a post of firing (5), where a means, acting as launching arm (15), strikes them at a point of percussion adjustable by means of adjustment, with a force adjustable by means of adjusting the power of shooting, the lower end (8) of the chute (4) for supplying the balloons (3), which opens at the shooting station (5), is provided with a single distributor of balloons (3), such as a lever articulated (9) actuated by an electromagnet, so as to release one by one the balloons (3) which descend by gravity from the chute (4), said apparatus being characterized by the fact
that the ejection arm (10) is mounted integral with an axis (11) mounted on bearings (12, 13, 14) and equipped with a return spring (42) on which is also mounted a launch arm ( 15), said launch arm (15) is actuated by a motorization arm (16) which rotates the launching arm (15) in rotation, the motorization arm (16) comprises an adjustment means which makes it possible to make vary its radius (R, r ) so as to band the return spring (42) by turning the launching arm (15) more or less.
that the shooting station (5) is formed by a cradle (25) which receives the ball before striking, said cradle (25) is provided with adjustment means in horizontal translation (F8, F7) and in vertical translation (F9, F10).

Training device according to claim 1, characterized in that
that the axis (11) on which are mounted the ejection arm (10) and the launch arm (15) is equipped with a stopper (43).

Training device according to claim 1, characterized in that
that the adjustment means which makes it possible to adjust the radius (R, r ) of the motorization arm (16) is a hollow hollow shaft (18) mounted between two bearings (19,20), a gear motor (21) rotates said shaft (18) on which the motorization arm (16) is mounted perpendicularly, this arm (16) is equipped with a rack (22), which meshes with a pinion (23), disposed in the hollow shaft (18), said pinion (23) is actuated by an axis (24) provided at its end with a flywheel (40) which appears outside the device and thus makes it possible to adjust the radius (R, r ) of the motorization arm (16).

Training device according to claim 1, characterized in that
that the means of adjustment in translation (F8, F7, F10, F9) of the cradle (25) are, for the horizontal translation (F8, F7) a connecting rod (26) which is actuated by a geared motor (27), while that the cradle (25) is mounted on horizontal slides.

Training device according to claim 4, characterized in that
that, for vertical translation (F10, F9), the cradle (25) is equipped with vertical columns (31, 32), along which the cradle (25) can go up or down by the action of cams (33, 34 ) integral with a horizontal shaft (35) which is rotated by a gear motor (41), a transmission chain (38) and sprockets (39).