EP0019311A1 - Vorrichtung zum Beschleunigen eines Balls durch elastischen Stoss - Google Patents

Vorrichtung zum Beschleunigen eines Balls durch elastischen Stoss 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
Other languages
English (en)
French (fr)
Other versions
EP0019311B1 (de
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.)
Filing date
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/de
Publication of EP0019311A1 publication Critical patent/EP0019311A1/de
Application granted granted Critical
Publication of EP0019311B1 publication Critical patent/EP0019311B1/de
Expired legal-status Critical Current

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Classifications

    • 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.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Manipulator (AREA)
  • Toys (AREA)
  • Press Drives And Press Lines (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
EP80200346A 1979-05-07 1980-04-17 Vorrichtung zum Beschleunigen eines Balls durch elastischen Stoss Expired EP0019311B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80200346T ATE9961T1 (de) 1979-05-07 1980-04-17 Vorrichtung zum beschleunigen eines balls durch elastischen stoss.

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 (de) 1980-11-26
EP0019311B1 EP0019311B1 (de) 1984-10-24

Family

ID=8186287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200346A Expired EP0019311B1 (de) 1979-05-07 1980-04-17 Vorrichtung zum Beschleunigen eines Balls durch elastischen Stoss

Country Status (12)

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

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 (fr) * 2018-02-27 2019-08-30 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) Appareil lanceur de ballon, notamment de rugby

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855794B2 (ja) * 1979-03-02 1983-12-12 英樹 安藤 投球装置
JP2540161Y2 (ja) * 1990-06-25 1997-07-02 一 丸山 ボール発射装置
DE4207454C2 (de) * 1992-02-01 1997-02-13 Struck Gustav Vorrichtung zum Katapultieren eines Balles
US5415150A (en) * 1993-09-07 1995-05-16 Dallas Tech Tools, Inc. Apparatus for projecting a ball
DE19719086B4 (de) * 1997-04-30 2005-08-25 Rainer Beyer Trainingsgerät für den Fußballsport -Fußballschleuder-
EP1020207A1 (de) * 1999-01-14 2000-07-19 Karl Hugo Ballschiessvorrichtung
DE20318493U1 (de) * 2003-11-29 2005-04-07 Breher Johann Fußball-Trainingsgerät
ES2319148B1 (es) * 2007-04-13 2010-01-22 Vicente Badal Mateu Maquina para el lanzamiento dirigido de balones.
FR2959806B1 (fr) * 2010-05-05 2015-01-09 Laporte Holding Appareil pour le lancement de cibles
FR2964324B1 (fr) * 2010-09-03 2012-10-12 Stephane Darmon Dispositif a lancer des ballons
DK177346B1 (da) * 2011-01-19 2013-01-28 Ball Training Machine Aps Apparat til udskydning af bolde

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 (de) * 1962-07-13 1968-12-05 Internat Tennis Machines Inc UEbungsgeraet fuer Tennisspieler
DE1728166A1 (de) * 1967-09-11 1972-03-09 Stelmema Sa Elektrisch betaetigbares Fussballspiel
DE2434716A1 (de) * 1973-07-18 1975-02-06 Francesco Dornetti Ballwurfgeraet
DE2447797A1 (de) * 1974-12-21 1976-04-15 Hans Knoop Fussball-trainingsgeraet
DE2511149A1 (de) * 1975-03-14 1976-09-23 Ulrich Kiess Vorrichtung zum abschiessen von sportbaellen
BE850907A (fr) * 1976-12-10 1977-08-01 Scheiwiller Kurt Procede et appareil de lancement de ballons de football vers un emplacement determine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16361B (de) * 1903-06-05 1904-05-25 Tom Settle Verfahren und Vorrichtung zur Erzeugung von Leuchtgas.
DE1728166U (de) 1956-05-23 1956-08-16 Ernst Hentschel Blumentopfhuelle.
FR1433452A (fr) 1965-02-16 1966-04-01 Appareil lance-balle automatique, particulièrement lance-balle de tennis
NL169414C (nl) 1971-05-07 1982-07-16 Tech Handelsonderneming De Bru Trainingsinrichting voor het afgeven van ballen.
DE2810260A1 (de) * 1976-11-10 1978-09-14 Kurt Scheiwiller Geraet zum nachbilden des schussvorganges beim fussballspiel
CH603180A5 (de) 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 (de) * 1962-07-13 1968-12-05 Internat Tennis Machines Inc UEbungsgeraet fuer Tennisspieler
US3310311A (en) * 1964-03-06 1967-03-21 Maurice E Peeples Golf putting cup with random-direction ball ejection means
DE1728166A1 (de) * 1967-09-11 1972-03-09 Stelmema Sa Elektrisch betaetigbares Fussballspiel
DE2434716A1 (de) * 1973-07-18 1975-02-06 Francesco Dornetti Ballwurfgeraet
DE2447797A1 (de) * 1974-12-21 1976-04-15 Hans Knoop Fussball-trainingsgeraet
DE2511149A1 (de) * 1975-03-14 1976-09-23 Ulrich Kiess Vorrichtung zum abschiessen von sportbaellen
BE850907A (fr) * 1976-12-10 1977-08-01 Scheiwiller Kurt Procede et appareil de lancement de ballons de football vers un emplacement determine

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 (fr) * 2018-02-27 2019-08-30 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) Appareil lanceur de ballon, notamment de rugby
WO2019166738A1 (fr) * 2018-02-27 2019-09-06 Institut National Des Sciences Appliquees De Toulouse (Insa Toulouse) Appareil lanceur de ballon, notamment de rugby

Also Published As

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

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