EP0019311A1 - Device for propelling a ball by elastic impact - Google Patents

Device for propelling a ball by elastic impact Download PDF

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Publication number
EP0019311A1
EP0019311A1 EP80200346A EP80200346A EP0019311A1 EP 0019311 A1 EP0019311 A1 EP 0019311A1 EP 80200346 A EP80200346 A EP 80200346A EP 80200346 A EP80200346 A EP 80200346A EP 0019311 A1 EP0019311 A1 EP 0019311A1
Authority
EP
European Patent Office
Prior art keywords
lever
percussion
balloon
arm
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP80200346A
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German (de)
French (fr)
Other versions
EP0019311B1 (en
Inventor
Georges Defosse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to AT80200346T priority Critical patent/ATE9961T1/en
Publication of EP0019311A1 publication Critical patent/EP0019311A1/en
Application granted granted Critical
Publication of EP0019311B1 publication Critical patent/EP0019311B1/en
Expired legal-status Critical Current

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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
    • A63B69/40—Stationarily-arranged devices for projecting balls or other bodies
    • 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
    • A63B69/40—Stationarily-arranged devices for projecting balls or other bodies
    • A63B2069/402—Stationarily-arranged devices for projecting balls or other bodies giving spin
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/05—Miscellaneous features of sport apparatus, devices or equipment with suction cups
    • A63B2225/055—Miscellaneous features of sport apparatus, devices or equipment with suction cups used for fixing

Definitions

  • ball launching devices consist of a ball-holding element in a well-defined position, a guide corridor for variable horizontal and vertical orientations and mobile elements launching the ball.
  • the balloon is launched, for example, using springs, compressed air, rollers or rollers rotating at high speed, one-piece swinging arm actuated by a spring or a motor. rotary.
  • the swing arm which is very long to reach the speeds necessary for propelling the ball, is fragile if it is of light construction or has a mass that is difficult to absorb after the ball is struck if it is of more robust construction.
  • the present invention relates to a balloon propulsion device by elastic shock which aims at a device of a very large: simplicity, robustness to any test, a rapid rate of fire, a high fidelity in the repetition of the power and the precision of the shooting, of an almost zero maintenance, of a compact size, of easy handling and of a use of great safety.
  • the device according to the invention is characterized by an articulated arm in the form of an oscillating lever and a percussion lever on the axes are parallel and by a motor device comprising at least one electromagnet coil, at least one plunger core attracted by this coil and a mechanical connection element connecting the plunger core to the articulated arm.
  • the balloon launcher consists of a solenoid coil 1 fixed to a frame 2, a plunger core 3 sliding in the coil 1 and integral with a rod 4, a connecting rod 5, the head of which is connected to the rod 4 via an axis 6, and of a lever 7 oscillating around an axis 8 parallel to the axis 6 and connected to the connecting rod 5 via an axis 9 parallel to axis 8 and to axis 6.
  • the connecting rod 5 can be replaced by another mechanical connection element for example: a wheel 10 ⁇ ig.2) or a cam with an appropriate profile 11 (Fig.3) integral with the oscillating lever 7 and pivoting around the 'axis (8).
  • the wheel 10 or the cam 11 has a peripheral groove guiding a cable 12 which connects the rod 4. To the oscillating lever 7.
  • a percussion lever 13 pivoting around an articulation axis 14, parallel to the axes 6, 8 and 9, located at the end of the oscillating lever 7 and which determines on this percussion lever 13 two arms of unequal size, the shortest constituting a driving arm 15, the longest being the percussion arm 16 terminated by a percussive mass 17.
  • an elastic stop composed of a rod 18 whose free end is arranged to strike the motor arm 15 of a shoulder 19, and of a helical spring 20 threaded on the rod 18 which from the impact of the motor arm 15 is compressed against a tube 21 secured to the chassis 2 and serving as a guide for the rod (18).
  • a latching system not shown normally maintains the percussion lever 13 in the extension of the oscillating lever 7. This latching system releases the percussion lever 13 when the arm 15 of the latter strikes the rod 18 of the elastic stop .
  • the electromagnet coil 1 is supplied with an electrical voltage proportional to the desired firing power.
  • the plunger core 3 penetrates into the coil 1 at increasing speed depending on the establishment. progressive current in the coil.
  • the attraction force developed by the electromagnet 1 is progressively increasing and it is important to make the best use of this characteristic to communicate to the striking mass 17 a maximum speed at the time of impact on the ball 22.
  • the motor arm 15 comes into contact with the rod 18 of the elastic stop and compresses the spring 20, in particular yielding to it the kinetic energy of the system comprising the plunger core 3, the connecting rod 5 and the oscillating lever 7 whose movement is stopped.
  • This energy is largely restored by the relaxation of the spring 20 which pushes the motor arm 15 further accelerates the movement of the percussion arm 16.
  • the percussive mass 17 is not braked by the elastic stop and continues its course by pivoting around the hinge pin 14 until it strikes the ball 22 placed in a well-defined position to be propelled by elastic shock.
  • Figure 4 shows another arrangement in which the oscillating lever is embodied by a set of two levers 7.
  • Each lever 7 pivots about an axis 8 and is set in motion by an electromagnet 1 by means of a core plunger 3 and a connecting rod 5.
  • the connection between the two levers 7 and the percussion lever 13 pivoting about an axis 14 parallel to the axis 8 of the levers 7 is provided by a flexible connection 24 such as cable, chain , telescopic arms.
  • an intermediate part 26 oscillates around an axis 27 parallel to the axes 8 and 14 and consists of a cylinder 28 coaxial with the axis 27 carrying at each end an arm 29 of short length at the end of which are mounted rollers 25 and provided in its center with an arm 30 of greater length at the end of which is a roller 31.
  • the frame 2 supports a stop 32 specially profiled to adapt the kinematics of the mechanism to the increasing attraction force of the electromagnet 1 and of suitable width to support the impact of 'a sole secured to the mating arm 15.
  • the stroke of the plunger core 3 must simultaneously achieve, on the one hand, progressive acceleration of the percussion arm 13 and, on the other hand, progressive braking of the oscillating lever 7. This is achieved in the following way in this example of execution.
  • the sole 33 secured to the motor arm 15 comes into contact with the profiled stop 32 at a point as far as possible from the articulation axis 14 so as to give the motor arm (18) a maximum effective length.
  • the point of contact between the profiled stop (32) and the sole of the motor arm 15 is closer and closer to the axis of articulation 14.
  • the same angular displacement of the oscillating lever 7 corresponds to an increasing angular displacement of the percussion arm 16 which therefore accelerates more and more and gives the percussive mass 17 a maximum speed upon impact with the ball 22.
  • the percussive mass 17 is free from any rotation so as not to thwart a possible rotational movement given to the balloon 22.
  • the percussion arm 16 After impact with the ball 22, the percussion arm 16 ends its stroke on a stop 34.
  • FIG. 5 In this embodiment shown in Figure 5 is also shown a device for aligning the percussion lever 13 relative to the oscillating lever 7 when the latter is in the high position.
  • This alignment device comprises an anchoring piece 35 integral with the percussion lever 13 on which two rods (36) are articulated, each supporting a spring 37. The free end of each rod 36 slides in a tip 38 oscillating in a end piece 39 of the oscillating lever 7 and serving as a stop for each spring 37.
  • the balloon launcher is also equipped with a feeding device, shown in FIG. 6, responsible for bringing each balloon to a cup 40 which exactly positions the balloon to be struck.
  • This balloon supply device comprises an exhaust part 41 alternately actuated by a motor 42 and by a return spring 43 by means of a reduction gear 44, an eccentric 45 and a telescopic arm 46 Firstly, under the action of the electric motor 42, the exhaust part 41 places a balloon in the waiting position. Secondly, under the action of the return spring 43, the part exhaust 41 allows the balloon to access the positioning cup 40.
  • This positioning cup 40 has a diameter much smaller than that of the balloon 22 so as to avoid contact with the outer edge of the positioning cup 40 , likely to modify the trajectory of the balloon 22.
  • the positioning cup 40 is hollow and is connected to a vacuum cleaner 47 by means of a flexible tube 48 into which a vacuum relay 49 is inserted which registers the presence of the ball on the cup and authorizes the shooting of the ball 22 as soon as it is correctly positioned.
  • the positioning cup 40 is adjustable in height by a suitable device shown in FIG. 7.
  • This device comprises a drive motor 50, with two directions of travel, provided with a control pinion 51 meshing with a toothed wheel 52, one side of which is provided with a disc 53 made of a material having characteristic friction properties.
  • the toothed wheel 52 and the disc 53 are integral with one another and are applied against a metal disc 54 with a pressure force exerted by a set of elastic washers 55 and adjustable by a nut 56.
  • the metal disc 54 is secured to a threaded rod 57 on which moves an internally threaded piece 58 secured to an arm 59 supporting the positioning cup 40.
  • the disc 53 secured to the toothed wheel 52 and the metal disc 54 secured to the threaded rod 57 are held against each other with a certain pressure and can slide relative to each other when the resistive torque becomes greater than an adjustable value by crushing the elastic washers 55 according to the position of the nut 56 on the end of the threaded rod 57.
  • This arrangement functions as a torque limiter and intervenes when the threaded part 58 reaches the end of the travel of the threaded rod 57.
  • the chassis 2 constitutes the mobile part of the device for propelling balloons by elastic shock.
  • the chassis 2 pivots by a certain angle around an axis 60, integral with a basic structure '61.
  • An electric motor 62 in two directions of travel, equipped with a pinion 63 meshes in a rack 64, arranged in an arc of a circle and integral with the base structure 61, to pivot the chassis 2.
  • Three 65 casters arranged at the rear of chassis 2 ensure both stability and mobility. Each of these rollers 65 is oriented to roll on a track 66 located immediately above the rack 64.
  • a torque limiter operates in the same manner as described above when the pinion 63 arrives at the end of the rack 64.
  • the basic structure 61 is equipped with two carrying wheels 67 and two steerable wheels 68 retractable by means of the drawbar 69 to rest this basic structure 61 on a foot 70.
  • the lever arm ratios of the drawbar 69 have been designed to produce easily placing it on the stand 70 and loading the steered wheels 68. A single operator can thus maneuver the machine without difficulty in orienting it roughly and giving it a stable base.
  • the elastic shock balloon propulsion device described above can be powered either by battery or by a DC power supply or by an AC power supply through a rectifier device.
  • the accumulators are preferably housed in the propulsion device or in the immediate vicinity thereof because of the large current draws at the time of each shot.
  • the immediate proximity of the accumulators then requires cables of large section of very short length.
  • the charging of the accumulators can be done by means of a power supply of low power rectifiers during downtime or even during the operation of the propulsion device.
  • an AC power supply with a rectifying device.
  • such an installation must be capable of providing pulses of direct current of considerable intensity which, in turn, imposes a device of large section. This is a serious handicap, since the propulsion device is called upon to operate on a sports ground, often very far from a power outlet.
  • the propulsion device is equipped with a power supply comprising a device rectifier 72 of relatively low power, supplying, through a current limiting resistor 74, an electrolytic capacitor of sufficient capacity to store a large part of the electrical energy necessary for shooting a balloon.
  • a power supply comprising a device rectifier 72 of relatively low power, supplying, through a current limiting resistor 74, an electrolytic capacitor of sufficient capacity to store a large part of the electrical energy necessary for shooting a balloon.
  • the sizes of the rectifier device and of the current limiting resistor 74 are chosen such that the time between two successive close shots is longer than the time required to charge the capacitor 73.
  • a transformer 71 adapts the charging voltage of the capacitor 73 to an optimum value to achieve a rapid rise in current in the electromagnet coil 1 when the firing is controlled by the closing of 'a switch 75.
  • a freewheeling diode 76 is mounted in parallel on the capacitor 73 to avoid the application of a voltage of opposite sign across the terminals of the capacitor 73 during voltage oscillations consecutive to the discharge of the capacitor in the circuit composed of the coil d electromagnet 1 and capacitor 73.
  • An elastic shock balloon propulsion device supplied in this way can be connected to a city power supply network by means of flexible cables of moderate section and easy handling, even if these cables are very long.
  • a voltage detector is inserted in the circuit of the capacitor bank 73 for. cut the power supply to transformer 71 as soon as the preset voltage is reached.
  • An auxiliary contactor is controlled at the same time as the switch 75 to maintain the closing of the switch 75 for a determined time, independent of the duration during which the operator presses the push-button of the control unit. and chosen to safely cover the time necessary for the mechanical operation during the firing and the time necessary for the complete discharge of the capacitor bank 73 so that the switch 75 opens the circuit when there is no longer any current.
  • the operator presses the push button to trigger the firing by closing the switch 75 he connects the capacitor bank 73 to the terminals of the electromagnet 1 Simultaneously the electric motor 42 actuates the exhaust part 41 to place another balloon in the waiting position.
  • the return spring 43 again actuates the exhaust part 41 to allow the balloon, placed on standby, to access the positioning cup 40.
  • the supply transformer 71 is connected to the terminals of the rectifier 72 which supplies the capacitor bank 73 via a resistor 74. This supply is cut off by the voltage detector as soon as the preset voltage, corresponding to a certain firing power, is reached. From this moment, the machine is ready for a new shot.

Abstract

Un dispositif à propulsion de ballon (22) par choc élastique comprend une bobine d'électro-aimant (1), un noyau plongeur (3) attiré par cette bobine (1 ), un levier oscillant (7) et une liaison mécanique (5,10 ou 11,12) reliant le noyau plongeur (3) au levier oscillant (7).An elastic shock balloon propulsion device (22) comprises an electromagnet coil (1), a plunger core (3) attracted by this coil (1), an oscillating lever (7) and a mechanical connection (5 , 10 or 11,12) connecting the plunger core (3) to the oscillating lever (7).

Le levier oscillant (7) est prolongé par un levier de percussion (13) pivotant autour d'un axe (14) fixé à l'extrémité libre du levier oscillant (7). Le levier de percussion (13) se compose de deux bras (15,16) d'inégale grandeur. En fin de parcours du levier oscillant (7), le bras le plus court (15) du levier de percussion (13) heurte une butée (32) qui l'arrête et contribue à accélérer le bras le plus long (16) du levier de percussion (13); la masse percutante (17) fixée en bout du levier de percussion (13) heurte ainsi le ballon (22) à vitesse maximum.

Figure imgaf001
The oscillating lever (7) is extended by a percussion lever (13) pivoting around an axis (14) fixed to the free end of the oscillating lever (7). The percussion lever (13) consists of two arms (15,16) of unequal size. At the end of the swing lever (7), the shortest arm (15) of the percussion lever (13) strikes a stop (32) which stops it and helps to accelerate the longest arm (16) of the lever percussion (13); the percussive mass (17) fixed at the end of the percussion lever (13) thus strikes the balloon (22) at maximum speed.
Figure imgaf001

Description

Il existe de nombreux brevets de dispositifs de lancement d'un balle.n. Ces dispositifs sont constitués d'un élément de maintien du ballon dans une position bien déterminée, d'un couloir de guidage d'orientations horizontale et verticale variables et d'éléments mobiles lançant le ballon. Dans ces dispositifs le lancement du ballon se fait, par exemple, à l'aide de ressorts, d'air comprimé, de rouleaux ou de galets tournant à grande vitesse, de bras oscillant d'une seule pièce actionné par un ressort ou un moteur rotatif.There are many patents for ball launching devices.n. These devices consist of a ball-holding element in a well-defined position, a guide corridor for variable horizontal and vertical orientations and mobile elements launching the ball. In these devices, the balloon is launched, for example, using springs, compressed air, rollers or rollers rotating at high speed, one-piece swinging arm actuated by a spring or a motor. rotary.

Tous ces dispositifs présentent des inconvénients qui en limitent fortement l'utilisation; les dispositifs à air comprimé sont très bruyants, les dispositifs à ressort ont une faible cadence de tir et une puissance rapidement altérée par l'avachissement des ressorts, les dispositifs équipés de moteurs électriques sont peu puissants et très so- phistiqués rendant ainsi leur entretien couteux et difficile.All these devices have drawbacks which greatly limit their use; compressed air devices are very noisy, the spring devices have a low rate of fire and power quickly altered by the limpness of the springs, devices equipped with electric motors are very powerful and very so- phisti q making ESU and their expensive and difficult maintenance.

Le bras oscillant, de grande longueur pour atteindre les vitesses nécessaires à la propulsion du ballon, est fragile s'il est de construction légère ou présente une masse difficile à amortir après la percussion du ballon s'il est de construction plus robuste.The swing arm, which is very long to reach the speeds necessary for propelling the ball, is fragile if it is of light construction or has a mass that is difficult to absorb after the ball is struck if it is of more robust construction.

La présente invention est relative à un dispositif de propulsion de ballon par choc élastique qui a pour but un dispositif d'une très g:ande simplicité, d'une robustesse à toute épreuve, d'une cadence de tir rapide, d'une haute fidélité dans la répétition de la puissance et de la précision du tir, d'un entretien pratiquement nul, d'un encombrement faible, de manipulation facile et d'une utilisation de grande sécurité.The present invention relates to a balloon propulsion device by elastic shock which aims at a device of a very large: simplicity, robustness to any test, a rapid rate of fire, a high fidelity in the repetition of the power and the precision of the shooting, of an almost zero maintenance, of a compact size, of easy handling and of a use of great safety.

Le dispositif suivant l'invention est caractérisé par un bras articulé sous forme d'un levier oscillant et d'un levier de percussion dent les axes sont parallèles et par un dispositif moteur comprenant au moins une bobine d'électro-aimant, au moins un noyau plongeur attiré p-r cette bobine et un élément de liaison mécanique reliant le noyau plongeur au bras articulé.The device according to the invention is characterized by an articulated arm in the form of an oscillating lever and a percussion lever on the axes are parallel and by a motor device comprising at least one electromagnet coil, at least one plunger core attracted by this coil and a mechanical connection element connecting the plunger core to the articulated arm.

L'invention est décrite ci-dessous par rapport à un exemple d' exécution représenté à la figure l.qui montre une vue en perspective d'un dispositif suivant l'invention. D'autres variantes du dispositif selon la figure 1 sont représentées schématiquement aux figures 2,3 et 4. 29.21/1801.The invention is described below with respect to an exemplary embodiment shown in Figure l. Which shows a perspective view of a device according to the invention. Other variants of the device according to Figure 1 are shown schematically in Figures 2,3 and 4. 29.21 / 1801.

Dans la figure 1, le lanceur de ballon est constitué d'une bobine d' électro-aimant 1 fixé à un châssis 2 , d'un noyau plongeur 3 coulissant dans la bobine 1 et solidaire d'une tige 4 , d'une bielle 5 dont la tête est reliée à la tige 4 par l'intermédiaire d'un axe 6 , et d'un levier 7 oscillant autour d'un axe 8 parallèle à l'axe 6 et relié à la bielle 5 par l'intermédiaire d'un axe 9 parallèle à l'axe 8 et à l'axe 6 . En variante, la bielle 5 peut être remplacée par un autre élément de liaison mécanique par exemple: une roue 10 Ùig.2) ou une came d'un profil approprié 11 (Fig.3) solidaire du levier oscillant 7 et pivotant autour de l'axe (8). La roue 10 ou la came 11 présente une gorge périphérique guidant un câble 12 qui relie la tige 4 .au levier oscillant 7 .In Figure 1, the balloon launcher consists of a solenoid coil 1 fixed to a frame 2, a plunger core 3 sliding in the coil 1 and integral with a rod 4, a connecting rod 5, the head of which is connected to the rod 4 via an axis 6, and of a lever 7 oscillating around an axis 8 parallel to the axis 6 and connected to the connecting rod 5 via an axis 9 parallel to axis 8 and to axis 6. As a variant, the connecting rod 5 can be replaced by another mechanical connection element for example: a wheel 10 Ùig.2) or a cam with an appropriate profile 11 (Fig.3) integral with the oscillating lever 7 and pivoting around the 'axis (8). The wheel 10 or the cam 11 has a peripheral groove guiding a cable 12 which connects the rod 4. To the oscillating lever 7.

A l'extrémité du levier oscillant 7 est fixé un levier de percussion 13 pivotant autour d'un axe d'articulation 14 , parallèle aux axes 6, 8 et 9 , situé en bout du levier oscillant 7 et qui détermine sur ce levier de percussion 13 deux bras d'inégale grandeur, le plus court constituant un bras moteur 15 , le plus long étant le bras de percussion 16 terminé par une masse percutante 17 .At the end of the oscillating lever 7 is fixed a percussion lever 13 pivoting around an articulation axis 14, parallel to the axes 6, 8 and 9, located at the end of the oscillating lever 7 and which determines on this percussion lever 13 two arms of unequal size, the shortest constituting a driving arm 15, the longest being the percussion arm 16 terminated by a percussive mass 17.

Dans cet exemple de réalisation une butée élastique, composée d'une tige 18 dont l'extrémité libre est agencée pour percuter le bras moteur 15 d'un épaulement 19 , et d'un ressort hélicoidal 20 enfilé sur la tige 18 qui dès l'impact du bras moteur 15 est comprimé contre un tube 21 solidaire du châssis 2 et servant de guide à la tige (18).In this embodiment an elastic stop, composed of a rod 18 whose free end is arranged to strike the motor arm 15 of a shoulder 19, and of a helical spring 20 threaded on the rod 18 which from the impact of the motor arm 15 is compressed against a tube 21 secured to the chassis 2 and serving as a guide for the rod (18).

Un système d'encliquetage non représenté maintient normalement le levier de percussion 13 dans le prolongement du levier oscillant 7. Ce système d'encliquetage dégage le levier de percussion 13 lorsque le bras 15 de celui-ci vient heurter la tige 18 de la butée élastique.A latching system not shown normally maintains the percussion lever 13 in the extension of the oscillating lever 7. This latching system releases the percussion lever 13 when the arm 15 of the latter strikes the rod 18 of the elastic stop .

Pour propulser un ballon 22 , on alimente la bobine d'électro- aimant 1 en une tension électrique proportionnée à la puissance de tir désirée.Par attraction électro magnétique, le-noyau plongeur 3 pénètre dans la bobine 1 à vitesse croissante selon l'établissement progressif du courant dans la bobine.To propel a balloon 22, the electromagnet coil 1 is supplied with an electrical voltage proportional to the desired firing power. By electromagnetic attraction, the plunger core 3 penetrates into the coil 1 at increasing speed depending on the establishment. progressive current in the coil.

Compte tenu du fait que le courant n'atteint pas la valeur nominale instantanément,la force d'attraction développé par l'électro-aimant 1 est progressivement croissante et il importe d'exploiter au mieux cette caractéristique pour communiquer à la masse percutante 17 une vitesse maximum au moment de l'impact sur le ballon 22 .In view of the fact that the current does not reach the nominal value instantaneously, the attraction force developed by the electromagnet 1 is progressively increasing and it is important to make the best use of this characteristic to communicate to the striking mass 17 a maximum speed at the time of impact on the ball 22.

Lorsque le levier oscillant 7 arrive presque en bout de course, le bras moteur 15 entre en contact avec la tige 18 de la butée élastique et comprime le ressort 20 en lui cédant notamment l'énergie cinétique du système comprenant le noyau plongeur 3, la bielle 5 et le levier oscillant 7 dont le mouvement est arrêté. Cette énergie est restituée en grande partie par la détente du ressort 20 qui repoussant le bras moteur 15 accélère encore le mouvement du bras de percussion 16. La masse percutante 17 n'est pas freinée par la butée élastique et poursuit sa course en pivotant autour de l'axe d'articulation 14 jusqu'à ce qu'elle heurte le ballon 22 mis dans une position bien déterminée pour être propulsé par choc élastique.When the oscillating lever 7 comes almost to the end of its travel, the motor arm 15 comes into contact with the rod 18 of the elastic stop and compresses the spring 20, in particular yielding to it the kinetic energy of the system comprising the plunger core 3, the connecting rod 5 and the oscillating lever 7 whose movement is stopped. This energy is largely restored by the relaxation of the spring 20 which pushes the motor arm 15 further accelerates the movement of the percussion arm 16. The percussive mass 17 is not braked by the elastic stop and continues its course by pivoting around the hinge pin 14 until it strikes the ball 22 placed in a well-defined position to be propelled by elastic shock.

Après l'impact, un ressort 23 reliant le levier oscillant 7 au bâti 2 le ramène à sa position de départ.After impact, a spring 23 connecting the oscillating lever 7 to the frame 2 returns it to its starting position.

La figure 4 montre une autre disposition dans laquelle le levier oscillant est matérialisé par un ensemble de deux leviers 7. Chaque levier 7 pivote autour d'un axe 8 et est mis en mouvement par un un électro-aimant 1 au moyen d'un noyau plongeur 3 et d'une bielle 5. La liaison entre les deux leviers 7 et le levier de percussion 13 pivotant autour d'un axe 14 parallèle à l'axe 8 des leviers 7 est assurée par une liaison souple 24 telle que câble, chaîne, bras télescopiques. Dans cette disposition, une pièce intermédiaire 26 oscille autour d'un axe 27 parallèle aux axes 8 et 14 et se compose d'un cylindre 28 coaxial à l'axe 27 portant à chaque extrémité un bras 29 de petite longueur au bout duquel sont montés des rouleaux 25 et nanti en son centre d'un bras 30 de plus grande longueur en bout duquel se trouve un rouleau 31. Lorsque le leviers 7 arrivent presqu'en fin de course, leurs extrémités entrent en contact avec les rouleaux 25 de la pièce intermédiàire 26 qui en pivotant autour de l'axe 27 amène le rouleau 31 en contact avec le levier de percussion 13. La pièce intermédiaire 26 ralentit les leviers 7 et simultanément accélère le levier de percussion 13 par transfert d'énergie cinétique des leviers 7 vers le levier de percussion 13. Il en résulte une plus grande vitesse de la masse percutante 17 lorsqu' elle entre en contact avec le ballon.Figure 4 shows another arrangement in which the oscillating lever is embodied by a set of two levers 7. Each lever 7 pivots about an axis 8 and is set in motion by an electromagnet 1 by means of a core plunger 3 and a connecting rod 5. The connection between the two levers 7 and the percussion lever 13 pivoting about an axis 14 parallel to the axis 8 of the levers 7 is provided by a flexible connection 24 such as cable, chain , telescopic arms. In this arrangement, an intermediate part 26 oscillates around an axis 27 parallel to the axes 8 and 14 and consists of a cylinder 28 coaxial with the axis 27 carrying at each end an arm 29 of short length at the end of which are mounted rollers 25 and provided in its center with an arm 30 of greater length at the end of which is a roller 31. When the levers 7 reach almost the end of their travel, their ends come into contact with the rollers 25 of the part 26 which pivots around the axis 27 brings the roller 31 into contact with the percussion lever 13. The intermediate piece 26 slows the levers 7 and simultaneously accelerates the percussion lever 13 by kinetic energy transfer from the levers 7 to the percussion lever 13. This results in a greater speed of the percussive mass 17 when it comes into contact with the ball.

Dans un autre exemple de réalisation représenté à la figure 5, le châssis 2 supporte une butée 32 spécialement profilée pour adapter la cinématique du mécanisme à la force d'attraction croissante de l'électro aimant 1 et de largeur convenable pour supporter l'impact d'une semelle le solidaire du bras mateur 15. Il faut notamment, enfin de course du noyau plongeur 3 réaliser simultanément d'une part une accélération pro- gressive du bras de percussion 13 et d'autre part un freinage progressif du levier cscillant 7. Ceci se réalise de la manière suivante dans cet exemple d'exécution. Lorsque le levier oscillant 7 arrive presqu'en bout de course la semelle 33 solidaire du bras moteur 15 entre en contact avec la butée profilée 32 en un point le plus éloigné possible de l'axe d'ar- ticulation 14 de façon à donner au bras moteur (18) une longueur efficace maximum. Au fur et à mesure que le levier oscillant 7 poursuit son mouvement, le point de contact entre la butée profilée (32) et la semelle du bras moteur 15 se rapproche de plus en plus de l'axe d'articulation 14. De la sorte à un même déplacement angulaire du levier oscillant 7 correspond un déplacement angulaire de plus en plus grand du bras de percussion 16 qui accèlère donc de plus en plus et donne à la masse percutante 17 une vitesse maximale lors de l'impact avec le ballon 22.In another exemplary embodiment shown in FIG. 5, the frame 2 supports a stop 32 specially profiled to adapt the kinematics of the mechanism to the increasing attraction force of the electromagnet 1 and of suitable width to support the impact of 'a sole secured to the mating arm 15. In particular, finally the stroke of the plunger core 3 must simultaneously achieve, on the one hand, progressive acceleration of the percussion arm 13 and, on the other hand, progressive braking of the oscillating lever 7. This is achieved in the following way in this example of execution. When the oscillating lever 7 comes almost to the end of its travel, the sole 33 secured to the motor arm 15 comes into contact with the profiled stop 32 at a point as far as possible from the articulation axis 14 so as to give the motor arm (18) a maximum effective length. As the oscillating lever 7 continues its movement, the point of contact between the profiled stop (32) and the sole of the motor arm 15 is closer and closer to the axis of articulation 14. In this way the same angular displacement of the oscillating lever 7 corresponds to an increasing angular displacement of the percussion arm 16 which therefore accelerates more and more and gives the percussive mass 17 a maximum speed upon impact with the ball 22.

Dans cette réalisation, la masse percutante 17 est libre de toute rotation pour ne pas contrarier un éventuel mouvement de rotation donné au ballon 22.In this embodiment, the percussive mass 17 is free from any rotation so as not to thwart a possible rotational movement given to the balloon 22.

Après impact avec le ballon 22, le bras de percussion 16 termine sa course sur une butée d'arrêt 34.After impact with the ball 22, the percussion arm 16 ends its stroke on a stop 34.

Dans cet exemple de réalisation repris en figure 5 est également représenté un dispositif d'alignement du levier de percussion 13 par rapport au levier oscillant 7 lorsque celui-ci est en position haute. Ce dispositif d'alignement comprend une pièce d'ancrage 35 solidaire du levier de percussion 13 sur laquelle s'articulent deux tiges (36) supportant chacune un ressort 37. L'extrémité libre de chaque tige 36 coulisse dans un embout 38 oscillant dans une pièce terminale 39 du levier oscillant 7 et servant de butée à chaque ressort 37.In this embodiment shown in Figure 5 is also shown a device for aligning the percussion lever 13 relative to the oscillating lever 7 when the latter is in the high position. This alignment device comprises an anchoring piece 35 integral with the percussion lever 13 on which two rods (36) are articulated, each supporting a spring 37. The free end of each rod 36 slides in a tip 38 oscillating in a end piece 39 of the oscillating lever 7 and serving as a stop for each spring 37.

Le lanceur de ballon est également équipé d'un dispositif d'alimentation, montré à la figure 6, chargé d'amener chaque ballon sur une coupelle 40 qui positionne exactement le ballon à percuter. Ce dispositif d'alimentation des ballons comprend une pièce d'échappement 41 alternativement actionnée par un moteur 42 et par un ressort de rappel 43 par l'intemédiaire d'un engrenage réducteur 44, d'un excentrique 45 et d'un bras télescopique 46. Dans un premier temps, sous l'action du moteur électrique 42 la pièce d'échappement 41 place un ballon en position d'attente.Dans un second temps,sous l'action du ressort de rappel 43 la pièce d'échappement 41 permet au ballon d'accéder à la coupelle de positionnement 40.Cette coupelle de positionnement 40 présente un diamètre nettement plus petit que celui du ballon 22 de façon à éviter un contact, avec le bord extérieur de la coupelle de positionnement 40 , susceptible de modifier la trajectoire du ballon 22 .The balloon launcher is also equipped with a feeding device, shown in FIG. 6, responsible for bringing each balloon to a cup 40 which exactly positions the balloon to be struck. This balloon supply device comprises an exhaust part 41 alternately actuated by a motor 42 and by a return spring 43 by means of a reduction gear 44, an eccentric 45 and a telescopic arm 46 Firstly, under the action of the electric motor 42, the exhaust part 41 places a balloon in the waiting position. Secondly, under the action of the return spring 43, the part exhaust 41 allows the balloon to access the positioning cup 40.This positioning cup 40 has a diameter much smaller than that of the balloon 22 so as to avoid contact with the outer edge of the positioning cup 40 , likely to modify the trajectory of the balloon 22.

Compte tenu de petit diamètre de la coupelle de positionnement 40 un maintien ferme et précis du ballon 22 sur la coupelle 40 est assuré par un dispositif d'aspiration représenté à la figure 5. La coupelle de positionnement 40 est creuse et est reliée à un aspirateur 47 par l'intermédiaire d'un tube souple 48 dans lequel est inséré un relais à dépression 49 qui enregistre la présence du ballon sur la coupelle et autorise le tir du ballon 22 dès qu'il est correctement positionné. La coupelle de positionnement 40 est réglable en hauteur par un dispositif approprié représenté à la figure 7.Given the small diameter of the positioning cup 40, a firm and precise holding of the balloon 22 on the cup 40 is ensured by a suction device shown in FIG. 5. The positioning cup 40 is hollow and is connected to a vacuum cleaner 47 by means of a flexible tube 48 into which a vacuum relay 49 is inserted which registers the presence of the ball on the cup and authorizes the shooting of the ball 22 as soon as it is correctly positioned. The positioning cup 40 is adjustable in height by a suitable device shown in FIG. 7.

Ce dispositif comprend un moteur d'entraînement 50 , à deux sens de marche, nanti d'un pignon de commande 51 engrenant avec une roue dentée 52 dont un flanc est garni d'un disque 53 en matériau a propriété de frottement caractéristiques. La roue dentée 52 et le disque 53 sont solidaires l'un de l'autre et sont appliqués contre un disque métallique 54 avec un effort de pression exercé par un jeu de rondelles élastiques 55 et réglable par un écrou 56 . Le disque métallique 54 est solidaire d'une tige filetée 57 sur laquelle se déplace une pièce filetée intérieurement 58 solidaire d'un bras 59 supportant la coupelle de positionnement 40 . Le disque 53 solidaire de la roue dentée 52 et le disque métallique 54 solidaire de la tige filetée 57 sont maintenus l'un contre l'autre avec une certaine pression et peuvent glisser l'un par rapport à l'autre lorsque le couple résistant devient supérieur à une valeur réglable par l'écrasement des rondelles élastiques 55 selon la position de l'écrou 56 sur l'extrémité de la tige filetée 57 . Cette disposition fonctionne comme limiteur du couple et intervient lorsque la pièce filetée 58 arrive en fin de course de la tige filetée 57 .This device comprises a drive motor 50, with two directions of travel, provided with a control pinion 51 meshing with a toothed wheel 52, one side of which is provided with a disc 53 made of a material having characteristic friction properties. The toothed wheel 52 and the disc 53 are integral with one another and are applied against a metal disc 54 with a pressure force exerted by a set of elastic washers 55 and adjustable by a nut 56. The metal disc 54 is secured to a threaded rod 57 on which moves an internally threaded piece 58 secured to an arm 59 supporting the positioning cup 40. The disc 53 secured to the toothed wheel 52 and the metal disc 54 secured to the threaded rod 57 are held against each other with a certain pressure and can slide relative to each other when the resistive torque becomes greater than an adjustable value by crushing the elastic washers 55 according to the position of the nut 56 on the end of the threaded rod 57. This arrangement functions as a torque limiter and intervenes when the threaded part 58 reaches the end of the travel of the threaded rod 57.

Dans la figure 5, le châssis 2 constitue la partie mobile du dispositif de propulsion de ballons par choc élastique. Le châssis 2 pivote d'un certain angle autour d'un axe 60 , solidaire d'une structure de base '61 .Sur cet axe 60 s'emboîte une crapaudine 77 solidaire du châssis 2 et située à l'avant du châssis 2 c'est-à-dire un peu en retrait de la coupelle de positionnement 40. Un moteur électrique 62, à deux sens de marche, équipé d'un pignon 63 engrène dans une crémaillère 64, disposée en arc de cercle et solidaire de la structure de base 61, pour faire pivoter le châssis 2.Trois roulettes 65 disposées à l'arrière du châssis 2 en assurent à la fois la stabilité et la mobilité. Chacune de ces roulettes 65 est orientée pour rouler sur une piste 66 située immédiatement au dessus de la crémaillère 64. Un limiteur de couple, non représenté, intervient de la même manière que décrit précédemment lorsque le pignon 63 arrive en fin de la crémaillère 64. La structure de base 61 est équipée de deux roues porteuses 67 et de deux roues directrices 68 escamotables au moyen du timon 69 pour reposer cette structure de base 61 sur un pied 70. Les rapports de bras de leviers du timon 69 ont été conçus pour réaliser facilement la pose sur le pied 70 et la mise en charge des roues directrices 68.'Un seul opérateur peut_ainsi manoeuvrer l'engin sans difficultés pour l'orienter grossièrémént et lui donner une assise stable.In FIG. 5, the chassis 2 constitutes the mobile part of the device for propelling balloons by elastic shock. The chassis 2 pivots by a certain angle around an axis 60, integral with a basic structure '61. On this axis 60 fits a clamp 77 integral with the chassis 2 and located at the front of the chassis 2 c is to say a little set back from the positioning cup 40. An electric motor 62, in two directions of travel, equipped with a pinion 63 meshes in a rack 64, arranged in an arc of a circle and integral with the base structure 61, to pivot the chassis 2.Three 65 casters arranged at the rear of chassis 2 ensure both stability and mobility. Each of these rollers 65 is oriented to roll on a track 66 located immediately above the rack 64. A torque limiter, not shown, operates in the same manner as described above when the pinion 63 arrives at the end of the rack 64. The basic structure 61 is equipped with two carrying wheels 67 and two steerable wheels 68 retractable by means of the drawbar 69 to rest this basic structure 61 on a foot 70. The lever arm ratios of the drawbar 69 have been designed to produce easily placing it on the stand 70 and loading the steered wheels 68. A single operator can thus maneuver the machine without difficulty in orienting it roughly and giving it a stable base.

Le dispositif de propulsion de ballons par choc élastique décrit ci-dessus peut être alimenté, soit par batterie, soit par une alimentation en courant continu, soit par une alimentation en courant alternatif à travers un dispositif redresseur.The elastic shock balloon propulsion device described above can be powered either by battery or by a DC power supply or by an AC power supply through a rectifier device.

Dans le cas d'une alimentation par batterie d'accumulateurs ,les accumulateurs sont de préférence logés dans le dispositif de propulsion ou à proximité immédiate de celui-ci en raison des appels de courant importants au moment de chaque tir. La proximité immédiate des accumulateurs nécessite alors des câbles de section importante de très courte longueur. Par contre le chargement des accumulateurs peut se faire au moyen d'une alimentation de redresseurs de faible puissance pendant des temps d'arrêt ou même pendant le fonctionnement du dispositif de propulsion. Lorsqu'on_ne désire pas s'encombrer du poids considérable d'accumulateurs, ni de l'entretien qu'ils nécessitent, il est possible d'utiliser une alimentation en courant alternatif avec un dispositif redresseur Toutefois, une telle installation doit être capable de fournir des impulsions de courant continu d'une intensité considérable qui, à son tour, impose un dispositif de grosse section. Ceci est un handicap sérieux, puisque le dispositif de propulsion est appelé à fonctionner sur un terrain de sports, souvent très éloigné d'une prise de courant.In the case of a supply by accumulator battery, the accumulators are preferably housed in the propulsion device or in the immediate vicinity thereof because of the large current draws at the time of each shot. The immediate proximity of the accumulators then requires cables of large section of very short length. On the other hand, the charging of the accumulators can be done by means of a power supply of low power rectifiers during downtime or even during the operation of the propulsion device. When one does not wish to burden oneself with the considerable weight of accumulators, or with the maintenance which they require, it is possible to use an AC power supply with a rectifying device. However, such an installation must be capable of providing pulses of direct current of considerable intensity which, in turn, imposes a device of large section. This is a serious handicap, since the propulsion device is called upon to operate on a sports ground, often very far from a power outlet.

De préférence, comme représenté à la figure 8, le dispositif de propulsion est équipé d'une alimentation comprenant un dispositif redresseur 72 d'une puissance relativement faible, alimentant, à travers une résistance de limitation de courant 74, un condensateur élecxrolyti- que de capacité suffisante pour emmagasiner une partie importante de l'énergie électrique nécessaire au tir d'un ballon.Preferably, as shown in FIG. 8, the propulsion device is equipped with a power supply comprising a device rectifier 72 of relatively low power, supplying, through a current limiting resistor 74, an electrolytic capacitor of sufficient capacity to store a large part of the electrical energy necessary for shooting a balloon.

Les tailles du dispositif redresseur et de la résistance de limitation de courant 74 sont choisies telles que le temps entre deux tirs successifs rapprochés soit plus long que le temps nécessaire au chargement du condensateur 73.The sizes of the rectifier device and of the current limiting resistor 74 are chosen such that the time between two successive close shots is longer than the time required to charge the capacitor 73.

Dans le but de tirer le meilleur parti de cette alimentation, un transformateur 71 adapte la tension de charge du condensateur 73 à une valeur optimum pour réaliser une montée rapide du courant dans la bobine d'électroaimant 1 lorsque le tir est commandé par la fermeture d'un interrupteur 75.In order to make the most of this supply, a transformer 71 adapts the charging voltage of the capacitor 73 to an optimum value to achieve a rapid rise in current in the electromagnet coil 1 when the firing is controlled by the closing of 'a switch 75.

Une diode de roue libre 76 est montée en parallèle sur le condensateur 73 pour éviter l'application d'une tension de signe contraire aux bornes du condensateur 73 lors des oscillations de tensions consécutives à la décharge du condensateur dans le circuit composé de la bobine d' électroaimant 1 et du condensateur 73.A freewheeling diode 76 is mounted in parallel on the capacitor 73 to avoid the application of a voltage of opposite sign across the terminals of the capacitor 73 during voltage oscillations consecutive to the discharge of the capacitor in the circuit composed of the coil d electromagnet 1 and capacitor 73.

Un dispositif de propulsion de ballons par choc élastique alimenté de cette manièrepeut être raccordé à un réseau d'alimentation en courant de ville au moyen de câbles souples de section modérée et de manipulation facile, même si ces câbles sont de grande longueur.An elastic shock balloon propulsion device supplied in this way can be connected to a city power supply network by means of flexible cables of moderate section and easy handling, even if these cables are very long.

Un détecteur de tension, non représenté à la figure 8 est inséré dans le circuit de la batterie de condensateurs 73 pour. couper l'alimentation du transformateur 71 dès que la tension préréglée est atteinte.A voltage detector, not shown in FIG. 8, is inserted in the circuit of the capacitor bank 73 for. cut the power supply to transformer 71 as soon as the preset voltage is reached.

Un contacteur auxiliaire, non représenté, est commandé en même temps que l'interrupteur 75 pour maintenir la fermeture de l'interrupteur 75 pendant un temps déterminé, indépendant de la durée pendant laquelle l'opérateur appuye sur le bouton -poussoir du boitier de commande et choisi pour couvrir en toute sécurité, le temps nécessaire à l'opération mécanique lors du tir et le temps nécessaire à la décharge complète de la batterie de condensateurs 73 de sorte que l'interrupteur 75 ouvre le circuit quand il n'y a plus de courant.An auxiliary contactor, not shown, is controlled at the same time as the switch 75 to maintain the closing of the switch 75 for a determined time, independent of the duration during which the operator presses the push-button of the control unit. and chosen to safely cover the time necessary for the mechanical operation during the firing and the time necessary for the complete discharge of the capacitor bank 73 so that the switch 75 opens the circuit when there is no longer any current.

Le dispositif de propulsion de ballons par choc élastique est commandé à distance par un équipement dont la commande est regroupée en un seul boitier. Ce boitier de commande comprend:

  • - un bouton-poussoir du type "coup de poing" pour commander l' arrêt immédiat de la machine en coupant toute son alimentation en électricité.
  • - un contact glissant pour régler la puissance de tir.
  • - un bouton-poussoir pour déclencher le tir.
  • - une commande à deux directions pour orienter horizontalement le châssi.s mobile 2.
  • - une commande à deux directions pour régler la hauteur de la coupelle de positionnement 40
  • - un contact glissant à deux directions avec position neutre pour régler le sens et la vitesse de rotation de la coupelle de positionnement 40, si elle est rotative selon la demande de brevet EP 79200221.
The elastic shock balloon propulsion system is remotely controlled by equipment, the control of which is grouped in a single box. This control unit includes:
  • - a push button of the "punch" type to control the immediate stop of the machine by cutting all its electricity supply.
  • - a sliding contact to adjust the firing power.
  • - a push button to trigger the shot.
  • - a two-way control to orient the mobile chassis 2 horizontally.
  • - a two-way control to adjust the height of the positioning cup 40
  • a sliding contact in two directions with neutral position to adjust the direction and the speed of rotation of the positioning cup 40, if it is rotary according to patent application EP 79200221.

Lorsque l'opérateur appuie sur lebouton-poussoir pour déclencher le tir par la fermeture de l'interrupteur 75 , il branche la batterie de condensateurs 73 aux bornes de l'électro-aimant 1 Simultanément le moteur électrique 42 actionne la pièce d'échappement 41 pour placer un autre ballon en position d'attente. Immédiatement après le tir d'un premier ballon, le ressort de rappel 43 actionne à nouveau la pièce d'échappement 41 pour permettre au ballon, placé en attente, d'accéder.à la coupelle de positionnement 40 . En même temps, le transformateur d'alimentation 71 est branché aux bornes du redresseur 72 qui alimente par l'intermédiaire d'une résistance 74 la batterie de condensateurs 73 . Cette alimentation est coupée par le détecteur de tension dès que la tension de préréglage, correspondante à une certaine puissance de tir, est atteinte. Dès cet instant, la machine est prête pour un nouveau tir.When the operator presses the push button to trigger the firing by closing the switch 75, he connects the capacitor bank 73 to the terminals of the electromagnet 1 Simultaneously the electric motor 42 actuates the exhaust part 41 to place another balloon in the waiting position. Immediately after the firing of a first balloon, the return spring 43 again actuates the exhaust part 41 to allow the balloon, placed on standby, to access the positioning cup 40. At the same time, the supply transformer 71 is connected to the terminals of the rectifier 72 which supplies the capacitor bank 73 via a resistor 74. This supply is cut off by the voltage detector as soon as the preset voltage, corresponding to a certain firing power, is reached. From this moment, the machine is ready for a new shot.

Claims (10)

1. Dispositif de propulsion de ballons par choc élastique comprenant sur un chassis (2) un dispositif moteur, un levier oscillant et un dispositif de présentation pour le ballon,
caractérisé en ce que le levier oscillant (7) est relié à un levier de percussion (13) pivotant autour d'un axe (14) approximativement parallèle à l'axe (8) du levier oscillant (7).1. Device for propelling balloons by elastic shock comprising on a chassis (2) a motor device, an oscillating lever and a presentation device for the balloon,
characterized in that the swing lever (7) is connected to a percussion lever (13) pivoting about an axis (14) approximately parallel to the axis (8) of the swing lever (7). 2. Dispositif suivant la revendication 1, caractérisé en ce que le levier oscillant (7) supporte l'axe 14 du levier de percussion (13)composé d'un bras moteur (15) d'un côté de cet axe (14) et d'un bras de percussion (16) de l'autre côté de cet axe (14),
et en ce que une butée (18,19,20,21 ou 32) est disposée sur le chemin du bras moteur (15) pour arrêter progressivement ce dernier.2. Device according to claim 1, characterized in that the oscillating lever (7) supports the axis 14 of the percussion lever (13) composed of a motor arm (15) on one side of this axis (14) and a percussion arm (16) on the other side of this axis (14),
and in that a stop (18,19,20,21 or 32) is arranged in the path of the motor arm (15) to gradually stop the latter. 3. Dispositif suivant la revendication 1 caractérisé en ce que un dispositif intermédiaire pivotant (25,26,28,29,30,31) susceptible d' entrer en contact avec le bras de percussion (16) est placé sur le chemin du levier oscillant (7) pour l'arrêter progressivement en transmettant son énergie au bras de percussion (16).3. Device according to claim 1 characterized in that a pivoting intermediate device (25,26,28,29,30,31) capable of coming into contact with the percussion arm (16) is placed on the path of the oscillating lever (7) to gradually stop it by transmitting its energy to the percussion arm (16). 4. Dispositif suivant une des revendications précédentes, caractérisé en ce que le dispositif moteur comprend au moins une bobine d'électro- aimant (1), au moins un noyau plongeur (3) attiré par la bobine de l' électro-aimant (1) et une liaison mécanique reliant le noyau plongeur (3) au levier oscillant (7).4. Device according to one of the preceding claims, characterized in that the motor device comprises at least one electromagnet coil (1), at least one plunger core (3) attracted by the coil of the electromagnet (1 ) and a mechanical connection connecting the plunger core (3) to the oscillating lever (7). 5. Dispositif selon une des revendications précédentes caractérisé en ce que, au repos, le levier de percussion (13) est maintenu dans une position bien déterminée par un dispositif comprenant au moins un ressort (37) enfilé sur une tige (36) dont une extrémité coulisse dans un embout (32) oscillant dans la partie terminale (39) du levier oscillant (7) et dont l'autre extrémité s'articule sur une pièce d'ancrage (35) solidaire du levier de percussion (13)5. Device according to one of the preceding claims, characterized in that, at rest, the percussion lever (13) is held in a well-determined position by a device comprising at least one spring (37) threaded on a rod (36), one of which end slides in an end piece (32) oscillating in the end part (39) of the oscillating lever (7) and the other end of which is articulated on an anchoring piece (35) integral with the percussion lever (13) 6. Dispositif selon une des revendications précédentes, caractérisé en ce que le dispositif de présentation est une coupelle de positionnement (40) de petit diamètre et est reliée à un dispositif d'aspiration (47,48) pour maintenir le ballon avec précision et fermeté.6. Device according to one of the preceding claims, characterized in that the presentation device is a positioning cup (40) of small diameter and is connected to a suction device (47,48) to hold the ball with precision and firmness . 7. Dispositif selon une des revendications précédentes caractérisé 29.21/ 1801.
en ce qu'un dispositif de détection (49) est inséré dans le dispositif d' aspiration (47,48) empêchant le tir du ballon (22) quand il n'est pas en bonne position sur la coupelle de positionnement (40).7. Device according to one of the preceding claims characterized 29.21 / 1801.
in that a detection device (49) is inserted in the suction device (47,48) preventing the shooting of the balloon (22) when it is not in good position on the positioning cup (40). 8. Dispositif selon une des revendications précédentes caractérisé en ce qu'un dispositif de réglage de hauteur du dispositif de présentation est prévu.8. Device according to one of the preceding claims, characterized in that a device for adjusting the height of the presentation device is provided. 9. Dispositif selon une des revendications précédentes caractérisé en ce que un dispositif d'échappement (41) est alternativement actionné par un moteur (42) et par un ressort de rappel (43) pour placer, dans un premier temps, un ballon en position d'attente et, dans un second temps, pour permettre au ballon d'accéder au dispositif de présentation.9. Device according to one of the preceding claims, characterized in that an exhaust device (41) is alternately actuated by a motor (42) and by a return spring (43) to first place a balloon in position waiting time and, secondly, to allow the balloon to access the presentation device. 10. Dispositif suivant une des revendications précédentes caractérisé en ce que le châssis (2) est rendu mobile par rapport à une structure de base (61) par une crémaillère (64), dans laquelle engrène un pignon (63) d'un moteur électrique (62) à deux sens de marche et en ce que un des deux éléments: crémaillère 64 et moteur 62 avec pignon 63 étant solidaire du châssis (2), l'autre étant solidaire de la structure de base (61).10. Device according to one of the preceding claims, characterized in that the chassis (2) is made movable relative to a basic structure (61) by a rack (64), in which meshes a pinion (63) of an electric motor (62) in two directions of travel and in that one of the two elements: rack 64 and motor 62 with pinion 63 being integral with the chassis (2), the other being integral with the basic structure (61).
EP80200346A 1979-05-07 1980-04-17 Device for propelling a ball by elastic impact Expired EP0019311B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80200346T ATE9961T1 (en) 1979-05-07 1980-04-17 DEVICE FOR ACCELERATING A BALL BY ELASTIC IMPACT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP79200222 1979-05-07
EP79200222 1979-05-07

Publications (2)

Publication Number Publication Date
EP0019311A1 true EP0019311A1 (en) 1980-11-26
EP0019311B1 EP0019311B1 (en) 1984-10-24

Family

ID=8186287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200346A Expired EP0019311B1 (en) 1979-05-07 1980-04-17 Device for propelling a ball by elastic impact

Country Status (12)

Country Link
US (1) US4365612A (en)
EP (1) EP0019311B1 (en)
JP (1) JPS5685370A (en)
AR (1) AR226308A1 (en)
AT (1) ATE9961T1 (en)
BR (1) BR8002746A (en)
DD (1) DD150546A5 (en)
DE (1) DE3069490D1 (en)
DK (1) DK162980A (en)
ES (1) ES8101395A1 (en)
MX (1) MX151893A (en)
SU (1) SU1088646A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347975A (en) * 1991-04-16 1994-09-20 Werner Salansky Ball throwing device for tennis balls
FR3078265A1 (en) * 2018-02-27 2019-08-30 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) BALLOON LAUNCHER, IN PARTICULAR RUGBY

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855794B2 (en) * 1979-03-02 1983-12-12 英樹 安藤 pitching device
JP2540161Y2 (en) * 1990-06-25 1997-07-02 一 丸山 Ball launcher
DE4207454C2 (en) * 1992-02-01 1997-02-13 Struck Gustav Device for catapulting a ball
US5415150A (en) * 1993-09-07 1995-05-16 Dallas Tech Tools, Inc. Apparatus for projecting a ball
DE19719086B4 (en) * 1997-04-30 2005-08-25 Rainer Beyer Football training equipment - soccer thrower
EP1020207A1 (en) * 1999-01-14 2000-07-19 Karl Hugo Apparatus for launching balls
DE20318493U1 (en) * 2003-11-29 2005-04-07 Breher Johann Football training equipment has balls dropped onto a support ramp and struck by a tensioned elastic shaft released by a remote control catch
ES2319148B1 (en) * 2007-04-13 2010-01-22 Vicente Badal Mateu MACHINE FOR THE DIRECTED LAUNCH OF BALLS.
FR2959806B1 (en) * 2010-05-05 2015-01-09 Laporte Holding APPARATUS FOR LAUNCHING TARGETS
FR2964324B1 (en) * 2010-09-03 2012-10-12 Stephane Darmon DEVICE FOR LAUNCHING BALLOONS
DK177346B1 (en) * 2011-01-19 2013-01-28 Ball Training Machine Aps Ball ejection apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884253A (en) * 1956-04-25 1959-04-28 Rivero-Ferro Juan Simulated soccer game apparatus
US3310311A (en) * 1964-03-06 1967-03-21 Maurice E Peeples Golf putting cup with random-direction ball ejection means
DE1428824A1 (en) * 1962-07-13 1968-12-05 Internat Tennis Machines Inc Exercise machine for tennis players
DE1728166A1 (en) * 1967-09-11 1972-03-09 Stelmema Sa Electrically operated football game
DE2434716A1 (en) * 1973-07-18 1975-02-06 Francesco Dornetti BALL THROWING DEVICE
DE2447797A1 (en) * 1974-12-21 1976-04-15 Hans Knoop Football training apparatus - with striker pendulum tensioned against spring pressure and adjustable shooting ramp
DE2511149A1 (en) * 1975-03-14 1976-09-23 Ulrich Kiess Ejection gadget for football training - uses spring-loaded swivelable firing element
BE850907A (en) * 1976-12-10 1977-08-01 Scheiwiller Kurt METHOD AND APPARATUS FOR LAUNCHING FOOTBALL BALLS TOWARDS A DETERMINED LOCATION

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16361B (en) * 1903-06-05 1904-05-25 Tom Settle Method and device for generating luminous gas.
DE1728166U (en) 1956-05-23 1956-08-16 Ernst Hentschel FLOWER POT HOLDER.
FR1433452A (en) 1965-02-16 1966-04-01 Automatic ball thrower, particularly tennis ball thrower
NL169414C (en) 1971-05-07 1982-07-16 Tech Handelsonderneming De Bru BALL DELIVERY TRAINING DEVICE.
DE2810260A1 (en) * 1976-11-10 1978-09-14 Kurt Scheiwiller Appts. for simulating football kicking - can be adjusted to strike ball in any part of its surface
CH603180A5 (en) 1976-12-02 1978-08-15 Stubo Ag

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884253A (en) * 1956-04-25 1959-04-28 Rivero-Ferro Juan Simulated soccer game apparatus
DE1428824A1 (en) * 1962-07-13 1968-12-05 Internat Tennis Machines Inc Exercise machine for tennis players
US3310311A (en) * 1964-03-06 1967-03-21 Maurice E Peeples Golf putting cup with random-direction ball ejection means
DE1728166A1 (en) * 1967-09-11 1972-03-09 Stelmema Sa Electrically operated football game
DE2434716A1 (en) * 1973-07-18 1975-02-06 Francesco Dornetti BALL THROWING DEVICE
DE2447797A1 (en) * 1974-12-21 1976-04-15 Hans Knoop Football training apparatus - with striker pendulum tensioned against spring pressure and adjustable shooting ramp
DE2511149A1 (en) * 1975-03-14 1976-09-23 Ulrich Kiess Ejection gadget for football training - uses spring-loaded swivelable firing element
BE850907A (en) * 1976-12-10 1977-08-01 Scheiwiller Kurt METHOD AND APPARATUS FOR LAUNCHING FOOTBALL BALLS TOWARDS A DETERMINED LOCATION

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347975A (en) * 1991-04-16 1994-09-20 Werner Salansky Ball throwing device for tennis balls
FR3078265A1 (en) * 2018-02-27 2019-08-30 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) BALLOON LAUNCHER, IN PARTICULAR RUGBY
WO2019166738A1 (en) * 2018-02-27 2019-09-06 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) Ball throwing device, in particular for rugby

Also Published As

Publication number Publication date
ES491159A0 (en) 1980-12-16
DK162980A (en) 1980-11-08
DE3069490D1 (en) 1984-11-29
JPS5685370A (en) 1981-07-11
DD150546A5 (en) 1981-09-09
MX151893A (en) 1985-05-02
EP0019311B1 (en) 1984-10-24
US4365612A (en) 1982-12-28
BR8002746A (en) 1980-12-16
AR226308A1 (en) 1982-06-30
SU1088646A3 (en) 1984-04-23
ATE9961T1 (en) 1984-11-15
ES8101395A1 (en) 1980-12-16

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