EP0383892A1 - Ball-throwing device, in particular for tennis balls. - Google Patents

Ball-throwing device, in particular for tennis balls.

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Publication number
EP0383892A1
EP0383892A1 EP89909675A EP89909675A EP0383892A1 EP 0383892 A1 EP0383892 A1 EP 0383892A1 EP 89909675 A EP89909675 A EP 89909675A EP 89909675 A EP89909675 A EP 89909675A EP 0383892 A1 EP0383892 A1 EP 0383892A1
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EP
European Patent Office
Prior art keywords
ball
feed
shot
balls
settings
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
EP89909675A
Other languages
German (de)
French (fr)
Other versions
EP0383892B1 (en
Inventor
Werner Salansky
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Individual
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Individual
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Publication date
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Publication of EP0383892A1 publication Critical patent/EP0383892A1/en
Application granted granted Critical
Publication of EP0383892B1 publication Critical patent/EP0383892B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • Ball throwing device in particular for tennis balls
  • the invention relates to a ball throwing device, in particular for tennis balls, with a ball magazine, a ball ejection device and a feed device which feeds the balls from the ball magazine individually to the ball ejection device, the ball ejection device each ball according to one of its pre-programmable shot settings, the speed, Define twist and / or direction of the ball, shoots.
  • Balles defined.
  • the disadvantage of the known ball throwing devices is that they are uniform through the feed device. fixed feed sequence and the.
  • the object of the invention is to provide a ball throwing device of the type mentioned at the beginning, with which a varied heron and realistic gameplay can be achieved.
  • the changeable feed film frequency of the feed device is controlled as a function of the shot settings of the ball ejection device, each of which is controlled by the ball throwing device for firing a ball shot setting a time interval measure to fix
  • the shot setting determined by the ball ejection device therefore always defines the time interval after which the next ball is fed from the magazine by the feed device.
  • the feed sequence frequency (and thus of course also the ejection sequence frequency) can be chosen such that the pause is short after a short, fast ball and longer after a high ball.
  • the device according to the invention gives the player, with increased criticism, the feeling of not simply playing against a machine with a uniform ejection rhythm, but against a real opponent.
  • the fact that the subsequent pause is always determined by a shot setting is particularly advantageous if the sequence of the shot settings is determined by a random generator, because then despite the random sequence of the shot settings it is always ensured that the intervals between the balls remain realistic thanks to the always remaining units "ball and break after the ball". Even if the sequence of the shot settings is programmed arbitrarily by the user, the intervals between the balls remain realistic.
  • the above-mentioned time interval measure specifies via a corresponding control device for each shot setting when the feed device feeds the next ball. According to a preferred embodiment of the invention it is provided that a. Setting device is provided, by means of which all the time intervals between the balls fed in combination with the shot settings of the ejection device can be jointly extended or shortened by an adjustable factor.
  • Ball passage sensor can be fixed in the feed path leading from the ball magazine to the ejection device. In principle, it would also be conceivable to use certain positions of the feed member on the bottom of the ball magazine for determining the start of such time intervals. However, the ball passage sensor allows the true ball passage to be clearly determined and thus a very precise "ball-related" functional sequence. If, for example, a ball fails to appear despite the correct position of the feed device or is a little late, this does not interfere with the functional sequence, since, for example, the ejection device can only be switched to a next shot setting after a specific one
  • the sensor can also be used as a switch-off sensor, which after a certain time
  • the device switches off automatically.
  • FIG. 1 shows a side view, partly in section, of a ball throwing device according to the invention
  • FIG. 2 shows a top view of a ball throwing device according to the invention
  • FIG. 3 shows a view from below of the ball throwing device according to the invention.
  • the ball throwing machine consists of a box 1, in which the ball magazine 2 is arranged at the top and the ball ejection device 3 is arranged at the bottom.
  • the ball ejection device 3 is connected to the ball magazine 2 via a tubular feed line, which is formed by a wire helix 4.
  • the supply of the individual balls 5 from the ball magazine 2 to the ball throwing mechanism 3 is carried out in a conventional manner
  • the driver 6 is driven by an electric motor 10.
  • the driver 6 is mounted on an axis of rotation 9
  • the two main parts of the Ausschei nri device 3 are the two rollers 11 and 12.
  • the two rollers 11 and 12 are mounted on a rocker 13.
  • the angle of inclination of the rocker 13 in the vertical, ie its pivoting in the direction of arrow A in FIG. 1, is controlled by an electric motor.
  • the rocker 13 is at the bearing 14 by a vertical
  • Rotation axis 15 rotatably mounted.
  • a very large horizontal swivel angle of up to 120 is achieved.
  • the pivotal movement is caused by the wire helix 4
  • the entire ball ejection device 3 is surrounded by a cylindrical jacket 17 which has an opening 18 for the passage of the balls 5.
  • the box 1 is provided with rollers 19, but these only serve to transport the ball throwing machine.
  • the box stops during the pivoting of the throwing mechanism 3. Only the parts carried by the axis 15 move.
  • the feed device has, as an essential component, the rotatably mounted feed element (driver) 6.
  • the driver 6 has on its outer surfaces a friction lining 24, which ensures good entrainment of the adjacent tennis balls.
  • the entire course of the game ie the shooting settings of the ball ejection device 3 and the feed member 6 (for reasons of clarity, the control lines leading to the ball ejection device are not shown) is controlled by an electronic control device, generally designated 22.
  • an electronic control device generally designated 22.
  • a remote control with content-changeable storage device 25 stores shot setting-related data, each data record corresponding to a specific shot setting or ball flight characteristic.
  • the programming of these shot settings can be done in a user-friendly manner by not directly entering the roll speeds and roll positions, but rather the desired ball speed, ball direction, swirl etc.
  • the entered and stored data can be displayed on a screen.
  • sequence of the now pre-programmed shot settings can be defined via a user-programmable sequence control device 27, whereby for
  • Certain balls can also be requested several times in succession for training purposes.
  • Ballausscheinri device 3 supplies, not essentially constant as before, but in dependence on the shot settings of the ball ejection device 3rd
  • Shot setting is associated with a time interval measure for determining the supply of the next ball by the supply device.
  • the beginning of the time inversion is conveniently determined by a ball passage sensor 29 in the wire helix. 4 set which of the true ballzu leadership recorded.
  • preprogrammed shot settings itself is determined by a random number generator.
  • the time intervals associated with each pre-programmed shot setting for the supply of the next ball can be stored in the memory 25 as relative time interval dimensions, the actual time interval then resulting in each case from the time interval dimension multiplied by a factor.
  • this common factor via an adjusting device 26 or a remote control, the whole game can be made faster or slower overall without changing the actual game characteristics.
  • electronic monitoring unit can monitor the sensor signals and cause that in the absence of
  • Feeding device takes place.
  • the invention is not restricted to the exemplary embodiment shown.
  • re the specific design of the feed device 6 and the ball ejection device can vary considerably within the scope of the invention.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pinball Game Machines (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

PCT No. PCT/AT89/00075 Sec. 371 Date May 16, 1990 Sec. 102(e) Date May 16, 1990 PCT Filed Aug. 28, 1989 PCT Pub. No. WO90/01975 PCT Pub. Date Mar. 8, 1990.A ball delivery apparatus, in particular for tennis balls, includes a ball magazine, a ball firing system, and a feed system that moves balls from the ball magazine one by one to the ball firing system. The ball firing system fires each ball in accordance with a preprogrammed firing setting that in each instance determines the speed, spin, and/or direction of each ball. A variable feed sequence frequency of the feed system is controlled as a function of the firing settings of the ball firing system. A time interval scale for establishing the movement of the next ball through the feed system is associated with each firing setting accepted by the ball firing system for firing a ball. The intervals between the balls can be matched to the particular ball characteristics.

Description

Ballwurfeinrichtung, insbesondere für Tennisbälle  Ball throwing device, in particular for tennis balls
Die Erf indung bezieht sich auf eine Bal lwurfeinrichtung insbesondere für Tennisbälle, mit einem Ballmagazin, einer Ballauswurfeinrichtung und einer Zufuhreinrichtung, die die Bälle aus dem Ballmagazin einzeln der Ballauswurfeinrichtung zuführt, wobei die Ballauswurfeinrichtung jeden Ball entsprechend einer ihrer vorprogrammierbaren Schußeinstellungen, die jewei ls Geschwindigkeit, Drall und/oder Abschußri chtung des Balles festlegen, abschießt.  The invention relates to a ball throwing device, in particular for tennis balls, with a ball magazine, a ball ejection device and a feed device which feeds the balls from the ball magazine individually to the ball ejection device, the ball ejection device each ball according to one of its pre-programmable shot settings, the speed, Define twist and / or direction of the ball, shoots.
Bei bekannten Ballwurfmaschinen erfolgt im allgemeinen die Schwenkung in der Hori zontalen automatisch, um dem Spieler die Bälle auf unterschiedli che Art zuzuwerfen. In known ball throwing machines, the panning in the horizontal direction takes place automatically in order to throw the balls to the player in different ways.
Um das Spiel realistischer zu gestalten, ist es bereits bekannt, bestimmte Schußeinstel lungen der Bal lauswurfeinrichtung vorzuprogrammieren und dann abzurufen. Durch eine solche Schufleinstel lung werden im allgemeinen Geschwindigkeit, Drall und Richtung des abgeschossenen In order to make the game more realistic, it is already known to pre-program certain shot settings of the ball ejection device and then to call them up. Such a Schufleinstel development generally speed, swirl and direction of the shot
Balles def iniert. Nachtei lig wi rkt sich bei den bekannten BalIwurfeinrichtungen die gleichmäßige durch die Zufuhreinrichtung. festgelegte Zufuhrfolgef requenz und die. Balles defined. The disadvantage of the known ball throwing devices is that they are uniform through the feed device. fixed feed sequence and the.
damit verknüpfte gleiche Auswurf foIgef requenz der Bälle aus. Um das Spiel schneller oder langsamer zu gestalten, ist es zwar bekannt, diese Zufuhrfolgef requenz zu verstellen. Durch die bei einmal gewählter Spielschnelligkeit immer gleich langen Pausen zwischen den Bällen wird das Spiel aber leicht monoton und entspricht kaum einem realen Teπnisspiel. associated same ejection of the balls. In order to make the game faster or slower, it is known to adjust this feed sequence. Due to the fact that the pauses between the balls are always the same length once the game speed is selected, the game becomes slightly monotonous and hardly corresponds to a real game of tennis.
Aufgabe der Erfindung ist es, eine Ballwurfeinrichtung der eingangs genannten Art zu schaffen, mit der ein abwechslungsreieher und realistischer Spielverlauf erzielbar ist.  The object of the invention is to provide a ball throwing device of the type mentioned at the beginning, with which a varied heron and realistic gameplay can be achieved.
Dies wi rd erfindungsgemäß dadurch erreicht, daß die veränderbare ZufuhrfoIgef requenz der Zufuhreinrichtung in Abhängigkeit von den Schußeinstellungen der Ballauswurfeinrichtung gesteuert ist, wobei jeder von der Ballaus wurfeinrichtung zum Abschuß eines Balles eingenommenen Schußeinstellung ein ZeitinervalImaß zur Festlegung This is achieved according to the invention in that the changeable feed film frequency of the feed device is controlled as a function of the shot settings of the ball ejection device, each of which is controlled by the ball throwing device for firing a ball shot setting a time interval measure to fix
der Zufuhr des nächsten Balles durch die Zufuhreinrichtung zugeordnet ist. Die durch die Ballauswurfeinrichtung festgelegte Schußeinstellung legt also immer das Zeitintervall fest, nach dem der nächste Ball aus dem Magazin durch die Zufurheinrichtung zugeführt wird. the supply of the next ball is assigned by the supply device. The shot setting determined by the ball ejection device therefore always defines the time interval after which the next ball is fed from the magazine by the feed device.
Damit ist es möglich, die Pausen zwischen den abgeschossene Bällen den durch die Schußeinstellungen festgelegten This makes it possible to set the pauses between the shot balls as determined by the shot settings
Flugcharakteristika anzupassen, wie es auch in einem richtigen Tennisspiel der Fall ist. Beispielsweise kann die Zufuhrfolgefrequenz (und damit natürlich immer auch die Auswurffolgefrequenz), so gewählt sein, daß die Pause nach einem kurzen, schnellen Ball kurz ist und nach einem hohen Ball länger ist. Die erfindungsgemäße Einrichtung vermittelt dem Spieler in verstärktem Haß das Gefühl, nicht einfach gegen eine Maschine mit gleichmäßigem Auswurfrhythmus, sondern gegen einen wirklichen Gegenspieler zu spielen. Adapt flight characteristics, as is the case in a real tennis game. For example, the feed sequence frequency (and thus of course also the ejection sequence frequency) can be chosen such that the pause is short after a short, fast ball and longer after a high ball. The device according to the invention gives the player, with increased hatred, the feeling of not simply playing against a machine with a uniform ejection rhythm, but against a real opponent.
Die Tatsache, daß durch eine Schußeinstellung immer die nachfolgende Pause festgelegt wird, ist vor allem dann von Vorteil, wenn die Abfolge der Schußeinstellungen durch einen Zufallsgenerator bestimmt wird, weil dann trotz der zufälligen Abfolge der Schußeinstellungen immer sichergestellt ist, daß die Intervalle zwischen den Bällen durch die immer zusammenbleibenden Einheiten "Ball und Pause nach dem Ball" realistisch bleiben. Auch bei einer vom Benutzer willkürlich vorgenommenen Programmierung der Abfolge der Schußeinstellungen bleiben die Intervalle zwischen den Bällen realistisch. Das oben angesprochene Zeitintervallmaß legt über eine entsprechende Steuereinrichtung für jede Schußeinstellung fest, wann die Zufuhreinrichtung den nächsten Ball zuführt. Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß eine. Einstel lvorrichtung vorgesehen ist, über welche alle in Kombination mit den Schußeinstellungen der Auswurf einri chtung festgelegten Zeitintervalle zwischen den zugeführten Bällen um einen einstellbaren Faktor gemeinsam verlängerbar bzw. verkürzbar sind. Damit lassen sich die Auswurf zeiten zwischen den Bällen proportional verändern, d.h. die verschieden zu den einzelnen Schußeinstellungen in Form von Zeitintervallmaßen programmierten Zeitinterval le werden alle um den gleichen Faktor verlängert oder verkürzt. Damit bleibt das Spiel "sinngemäß" gleich. Es wird nur insgesamt schneller oder langsamer. Diese Gesamtspielschnelligkeit läßt sich günstigerweise über eine Fernsteuerung vom Spieler verändern. The fact that the subsequent pause is always determined by a shot setting is particularly advantageous if the sequence of the shot settings is determined by a random generator, because then despite the random sequence of the shot settings it is always ensured that the intervals between the balls remain realistic thanks to the always remaining units "ball and break after the ball". Even if the sequence of the shot settings is programmed arbitrarily by the user, the intervals between the balls remain realistic. The above-mentioned time interval measure specifies via a corresponding control device for each shot setting when the feed device feeds the next ball. According to a preferred embodiment of the invention it is provided that a. Setting device is provided, by means of which all the time intervals between the balls fed in combination with the shot settings of the ejection device can be jointly extended or shortened by an adjustable factor. This allows the ejection times between the balls to be changed proportionally, ie the time intervals programmed differently to the individual shot settings in the form of time interval measurements are all lengthened or shortened by the same factor. So the game remains "analogous". It just gets faster or slower overall. This overall game speed can conveniently be changed by the player via remote control.
Der Beginn jedes Zeitintervalls, nach dem die Zuführeinrichtung den nächsten Ball zuführt, kann über einen The beginning of each time interval after which the feed device feeds the next ball can be over a
Balldurchgangssensor in der vom Ballmagazin zur Auswurfeinrichtung führenden Zufuhrbahn festgelegt sein. Prinzipiell wäre es auch denkbar etwa bestimmte Stellungen des Zufuhrorgans am Boden des Ballmagazins für die Festlegung des Beginns solcher Zeitintervalle heranzuziehen. Der Balldurchgangssensor erlaubt jedoch, den wahren Balldurchgang eindeutig festzustellen und damit einen sehr genauen "ballbezogenen" Funktionsablauf. Bleibt beispielsweise einmal ein Ball trotz richtiger Stellung der Zuführeinrichtung aus oder kommt etwas verspätet, so stört dies den Funktionsablauf nicht, da beispielsweise eine Weiterschaltung der Auswurfeinrichtung auf eine nächste Schußeinstellung erst nach einer bestimmten  Ball passage sensor can be fixed in the feed path leading from the ball magazine to the ejection device. In principle, it would also be conceivable to use certain positions of the feed member on the bottom of the ball magazine for determining the start of such time intervals. However, the ball passage sensor allows the true ball passage to be clearly determined and thus a very precise "ball-related" functional sequence. If, for example, a ball fails to appear despite the correct position of the feed device or is a little late, this does not interfere with the functional sequence, since, for example, the ejection device can only be switched to a next shot setting after a specific one
Zeit nach dem wahren Balldurchgang erfolgt und auch die Zufuhrsteuerung den wahren Balldurchgang als Start Signal nimmt. Der Sensor läßt sich ebenfalls als Abschaltsensor verwenden, der nach einer bestimmten Zeit bei Time after the true ball passage takes place and also the feed control the true ball passage as a start Signal takes. The sensor can also be used as a switch-off sensor, which after a certain time
Ausbleiben der Bälle das Gerät automatisch abschaltet. If there are no balls, the device switches off automatically.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Figuren der beiliegenden Zeichnungen eingehend beschrieben. An exemplary embodiment of the invention is described in detail below with reference to the figures in the accompanying drawings.
Die Fig.1 zeigt eine Seitenansicht teilweise im Schnitt einer erfindungsgemäßen BalIwurfeinrichtung, die Fig.2 zeigt eine Draufsicht auf eine erfindungsgemäße Ballwurfeinrichtung, und die Fig.3 zeigt eine Ansicht von unten auf die erfindungsgemäße Ballwürfeinrichtung. 1 shows a side view, partly in section, of a ball throwing device according to the invention, FIG. 2 shows a top view of a ball throwing device according to the invention, and FIG. 3 shows a view from below of the ball throwing device according to the invention.
Wie aus den Figuren der Zeichnung ersichtlich, besteht die erfindungsgemäße BalIwurfmaschine aus einem Kasten 1, in dem oben das Ballmagazin 2 und unten die Ballauswurfeinrichtung 3 angeordnet sind. As can be seen from the figures of the drawing, the ball throwing machine according to the invention consists of a box 1, in which the ball magazine 2 is arranged at the top and the ball ejection device 3 is arranged at the bottom.
Die Ballauswurfeinrichtung 3 steht über eine schlauchförmige Zuführleitung, die von einer Drahtwendel 4 gebildet wird, mit dem Ballmagazin 2 in Verbindung. The ball ejection device 3 is connected to the ball magazine 2 via a tubular feed line, which is formed by a wire helix 4.
Die Zufuhr der einzelnen Bälle 5 vom Ballmagazin 2 zum BalIwurfmechanismus 3 wird in herkömmlicher Art und The supply of the individual balls 5 from the ball magazine 2 to the ball throwing mechanism 3 is carried out in a conventional manner
Weise von einem Treiber 6 geregelt, der zwischen Armen 7 die Bälle 5 aufnimmt und diese einzeln einer Einlaßöffnung 8 der seh lauchförmi gen Drahtwendel 4 zuführt.  Way regulated by a driver 6, which receives the balls 5 between arms 7 and feeds them individually to an inlet opening 8 of the wire coil 4, which is very easy.
Der Antrieb des Treibers 6 erfolgt über einen Elektromotor 10. Der Treiber 6 ist auf einer Drehachse 9 gelagert  The driver 6 is driven by an electric motor 10. The driver 6 is mounted on an axis of rotation 9
Die beiden Hauptteile der Auswurfei nri chtung 3 sind die beiden Rollen 11 und 12. Die beiden Rollen 11 und 12 sind auf einer Wippe 13 gelagert. Der Neigungswinkel der Wippe 13 in der Vertikalen, d.h. deren Schwenkung in der Richtung des Pfeiles A der Fig.1 wird über einen Elektromotor gesteuert. Die Wippe 13 ist an der Lagerstelle 14 um eine vertikale The two main parts of the Auswurfei nri device 3 are the two rollers 11 and 12. The two rollers 11 and 12 are mounted on a rocker 13. The angle of inclination of the rocker 13 in the vertical, ie its pivoting in the direction of arrow A in FIG. 1, is controlled by an electric motor. The rocker 13 is at the bearing 14 by a vertical
Drehachse 15 drehbar gelagert. Dabei wird ein sehr großer horizontaler Schwenkwinkel von bis zu 120 erzielt.  Rotation axis 15 rotatably mounted. A very large horizontal swivel angle of up to 120 is achieved.
Die Schwenkbewegung wird von der Drahtwendel 4, die  The pivotal movement is caused by the wire helix 4
die Zuführbahn für die Bälle 5 bildet, nicht behindert.  the feed path for the balls 5 is not obstructed.
Die Drehung um die Drehachse 15 in der Horizontalen, d.h. The rotation about the axis of rotation 15 in the horizontal, i.e.
in der Richtung des Pfeiles B der Fig.3 wird von einem Elektromotor 16 bewirkt. in the direction of arrow B in FIG. 3 is effected by an electric motor 16.
Die gesamte Ballauswurfeinrichtung 3 ist mit einem zylindrisch Mantel 17 umgeben, der eine Öffnung 18 für den Durchlaß der Bä l le 5 aufweist. The entire ball ejection device 3 is surrounded by a cylindrical jacket 17 which has an opening 18 for the passage of the balls 5.
Der Kasten 1 ist mit Rollen 19 versehen, jedoch dienen diese nur dem Transport der BalIwurfmaschine. Während der Schwenkung des Wurfmechanismus 3 bleibt der Kasten stehen. Es bewegen sich nur die von der Achse 15 getragenen Teile. The box 1 is provided with rollers 19, but these only serve to transport the ball throwing machine. The box stops during the pivoting of the throwing mechanism 3. Only the parts carried by the axis 15 move.
Die Zufuhreinrichtung weist als wesentlichen Bestandteil das drehbar gelagerte Zufuhrorgan (Treiber) 6 auf. Zur Verbesserung der Zufuhr weist der Treiber 6 an seinen Außenflächen einen Reibbelag 24 auf, welcher für eine gute Mitnähme der anliegenden Tennisbälle sorgt. The feed device has, as an essential component, the rotatably mounted feed element (driver) 6. To improve the supply, the driver 6 has on its outer surfaces a friction lining 24, which ensures good entrainment of the adjacent tennis balls.
Die Stellung der Wippe 13, der Verdrehwinkel um die vertikale Achse 15 und die Geschwindigkeiten der beiden Rollen 11, The position of the rocker 13, the angle of rotation about the vertical axis 15 and the speeds of the two rollers 11,
12 definieren die Schußeinstellung der Ballauswurfeinrichtung 3 und damit die Flugcharakteristik des abgeschossenen Balles. 12 define the shot setting of the ball ejection device 3 and thus the flight characteristic of the shot ball.
Der gesamte Spielablauf, d.h. die Schüßeinstel lungen der Ballauswurfeinrichtung 3 und das Zufuhrorgan 6 (aus Gründen der ϋbersichtlichkeit sind die zur Ballauswurfeinrichtung führenden Steuerleitungen nicht dargestellt), wird von einer allgemein mit 22 bezeichneten elektronischen Steuereinrichtung gesteuert. In der vom Benutzer über die Tastatur 23 oder eine Fernsteuerung inhaltlich veränderbare Speichεreinrichtung 25 sind schußeinstellungsbezogene Daten abgespeichert, wobei jeder Datensatz einer bestimmten Schußeinstellung bzw. Ballflugcharacteristik entspricht. Die Einprogrammi erung dieser Schußeinstellungen kann auf benutzerfreundliche Weise erfolgen, indem nicht die Rollengeschwindigkeiten und Rollenstellungen direkt, sondern etwa die gewünschte Ballgeschwindigkeit, Ballrichtung, Drall etc. eingegeben werden. Die eingegebenen und eingespeicherten Daten sind über einen Bildschirm anzeigbar. The entire course of the game, ie the shooting settings of the ball ejection device 3 and the feed member 6 (for reasons of clarity, the control lines leading to the ball ejection device are not shown) is controlled by an electronic control device, generally designated 22. In the by the user about the Keyboard 23 or a remote control with content-changeable storage device 25 stores shot setting-related data, each data record corresponding to a specific shot setting or ball flight characteristic. The programming of these shot settings can be done in a user-friendly manner by not directly entering the roll speeds and roll positions, but rather the desired ball speed, ball direction, swirl etc. The entered and stored data can be displayed on a screen.
Die Abfolge der nun vorprogrammierten Schußeinstellungen kann über eine vom Benutzer programmierbare Ablaufsteuereinrichtung 27 festgelegt sein, wobei für The sequence of the now pre-programmed shot settings can be defined via a user-programmable sequence control device 27, whereby for
Trainingszwecke bestimmte Bälle (Scbußeinstellungen) auch mehrmals hintereinander verlangt werden können. Certain balls (shot settings) can also be requested several times in succession for training purposes.
Daneben besteht die Möglichkeit, die Abfolge der Schußeinst ellungen über einen Zufallsgenerator 28 zu bestimmen In addition, there is the possibility of determining the sequence of the weft settings via a random generator 28
Erfindungswesentlich ist nun, daß die Zufuhrfolgefrequenz mit der das Zufuhrorgan 6 Bälle 5 aus dem Magazin 2 derIt is essential to the invention that the feed sequence frequency with which the feed member 6 balls 5 from the magazine 2
Ballauswurfeinri chtung 3 zuführt, nicht wie bisher im wesentlichen konstant, sondern in Abhängigkeit von den Schußeinstellungen der Ballauswurfeinrichtung 3 Ballauswurfeinri device 3 supplies, not essentially constant as before, but in dependence on the shot settings of the ball ejection device 3rd
veränderlich gesteuert ist. Damit kann der Spielverlauf realistischer gestaltet werden, weil die Pausen zwischen den Bällen, wie im richtigen Spiel, auf die Art der gespielten Bälle abstimmbar sind.  is variably controlled. This makes the course of the game more realistic because the pauses between the balls, like in the right game, can be adjusted to the type of balls played.
Dabei ist es besonders günstig, daß jeder von der Ballauswurfeinrichtung zum Abschluß eines Balles eingenommenen It is particularly favorable that everyone ingested by the ball ejection device to complete a ball
Schußeinstellung ein Zeitintervallmaß zur Festlegung der Zufuhr des nächsten Balles durch die Zufuhreinrichtung zugeordnet ist. Der Beginn des Zeitinvertalls wird günstigerweise durch einen Balldurchgangssensor 29 in der Drahtwendel. 4 festgelegt, welcher die wahre Ballzu führung erfaßt. Nach einem von der Schußeinstellung des abgeschossenen Balles abhängigen, vom Benutzer im Speicher 25 vorprogrammierbaren Zeitintervall erfolgt -gesteuert durch die elektronische Steuereinrichtung -die Zufuhr des nächsten Balles. Dabei kann sich der Shot setting is associated with a time interval measure for determining the supply of the next ball by the supply device. The beginning of the time inversion is conveniently determined by a ball passage sensor 29 in the wire helix. 4 set which of the true ballzu leadership recorded. After a time interval which is dependent on the shot setting of the shot ball and can be preprogrammed by the user in the memory 25, the next ball is fed, controlled by the electronic control device. The can
Treiber 6 laufend drehen, wobei die Drehzahl je Rotate driver 6 continuously, the speed depending
nach kurzem oder langem Zeitintervall erhöht oder increased after a short or long time interval or
erniedrigt wird. Dadurch, daß jeder Schußeinstellung immer .jene Pause zugeordnet ist, nach is lowered. Because each shot setting is always associated with that pause after
der der nächste Ball zugeführt wird, bleibt das the next ball is fed remains
Spiel auch dann realitätsnah,. wenn die Abfolge der Game realistic, too. if the sequence of
vorprogrammierten S chußeinstellungen selbst durch einen Zufallsgenerator festgelegt ist. preprogrammed shot settings itself is determined by a random number generator.
Die zu jeder vorprogrammierten Schußeinstellung gehörigen Zeitintervalle für die Zufuhr des nächsten Balles können als relative ZeitintervalImaße im Speicher 25 abgespeichert sein, wobei sich das tatsächliche Zeitintervall dann jeweils aus dem mit einem Faktor multiplizierten Zeitintervallmaß ergibt. Durch Veränderung dieses gemeinsamen Faktors über eine Einstellvorrichtung 26 oder eine Fernsteuerung kann das ganze Spiel ingesamt schneller oder langsamer gemacht werden, ohne die eigentliche Spielcharakteristik zu verändern. Die Relation der in The time intervals associated with each pre-programmed shot setting for the supply of the next ball can be stored in the memory 25 as relative time interval dimensions, the actual time interval then resulting in each case from the time interval dimension multiplied by a factor. By changing this common factor via an adjusting device 26 or a remote control, the whole game can be made faster or slower overall without changing the actual game characteristics. The relation of in
Abhängigkeit von der Schußeinstellung der Auswurfeinrichtung verschieden vorprogrammierten Zeitintervalle bleibt ja bei Verändern des genannten Faktors vorhanden. Depending on the shot setting of the ejection device, different preprogrammed time intervals remain after changing the factor mentioned.
Eine an den Balldurchgangs sensor 29 angeschlossene, A connected to the ball passage sensor 29
elektronische Überwachungseinheit kann die Sensorsignale überwachen und bewirken, daß bei Ausbleiben eines electronic monitoring unit can monitor the sensor signals and cause that in the absence of
Sensorsignals über eine vorgebbare Zeitdauer eine Abschaltung der Ballauswurfeinrichtung und/oder der Switching off the ball ejection device and / or the sensor signal over a predefinable period of time
Zufuhreinrichtung erfolgt. Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Insbesonde. re die konkrete Ausbildung der Zufuhreinrichtung 6 und der Ballauswurfeinrichtung kann im Rahmen der Erfindung beträchtlich variieren. Feeding device takes place. The invention is not restricted to the exemplary embodiment shown. In particular. re the specific design of the feed device 6 and the ball ejection device can vary considerably within the scope of the invention.

Claims

P a t e n t n s p ü c h e Patent patties
1. Ballwurfmaschine insbesondere für Tennisbälle, mit 1. Ball throwing machine, especially for tennis balls, with
einem Ballmagazin, einer Ballauswurfeinrichtung und einer Zufuhreinrichtung, die die Bälle aus dem Ballmagazin einzeln der Ballauswürfeinrichtung zuführt, wobei die Ballauswurfeinrichtung jeden Ball entsprechend einer ihrer vorprogrammierbaren Schußeinstellungen, die jeweils Geschwindigkeit, Drall und/oder Abschußrichtung des Balles festlegen, abschießt, dadurch gekennzeichnet, daß die veränderbare Zufuhrfolgefrequenz der Zufuhreinrichtung (6) in Abhängigkeit von den Schußeinstellungen der Ballauswurfeinrichtung (3) gesteuert ist, wobei jeder von der Ballauswurfeinrichtung (3) zum Abschuß eines Balles (5) eingenommenen Schußeinstellung ein Zeitintervallmaß zur Festlegung der Zufuhr des nächsten Balles durch die Zufuhreinrichtung (6) zugeordnet ist.  a ball magazine, a ball ejection device and a feed device which feeds the balls from the ball magazine individually to the ball ejection device, the ball ejection device firing each ball in accordance with one of its preprogrammable shot settings, which in each case determine the speed, swirl and / or direction of the ball, characterized in that the changeable feed sequence frequency of the feed device (6) is controlled as a function of the shot settings of the ball ejection device (3), each shot setting taken by the ball ejection device (3) to shoot a ball (5) being a time interval measure for determining the feed of the next ball by the feed device (6) is assigned.
2. Ballwürfeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine vorzugsweise vom Benutzer inhaltlich veränderbare Speiehereinrichtung (25) vorgesehen ist, in der die schußeinstellungsbezogenen Daten zur Steuerung der Ballauswürfeinrichtung (3) und die zugehörigen zufuhrbezogenen Daten zur Steuerung der Zufuhreinrichtung (6) in Abhängigkeit von den Schußeinstellungen abgespeichert sind. 2. Ball throwing device according to claim 1, characterized in that a storage device (25) which can preferably be changed by the user is provided, in which the shot setting-related data for controlling the ball ejecting device (3) and the associated feed-related data for controlling the feeding device (6) in dependence saved from the shot settings.
3. BalIwurfeinrichtung nach Anspruch 1 oder 2, dadurch 3. Ball throwing device according to claim 1 or 2, characterized
gekennzeichnet, daß eine Einstellvorrichtung (26) vorgesehen ist, über welche alle in Kombination mit den Schußeinstellungen der Auswurfeinrichtung (3) festgelegten Zeitintervalle zwischen den zugeführten Bällen (5) um einen einstellbaren Faktor gemeinsam verlängerbar bzw. verkürzbar sind. characterized in that an adjusting device (26) is provided, by means of which all the time intervals between the balls fed in combination with the shot settings of the ejection device (3) are established (5) can be extended or shortened together by an adjustable factor.
4. BalIwurfeinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Abfolge der vorprogrammierten 4. Ball throwing device according to claim 2 or 3, characterized in that the sequence of the preprogrammed
Schußeinstellungen der Ballaύswurfeinrichtung (3) durch eine vom Benutzer programmierbare Ab lauf st eue reinri chtung (27) festgelegt ist.  Shot settings of the ball throwing device (3) is defined by a user-programmable sequence control device (27).
5. Ballwurfeinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Abfolge der vorprogrammierten 5. Ball throwing device according to claim 2 or 3, characterized in that the sequence of the pre-programmed
Schußeinstellungen durch einen an sich bekannten Zufallsgenerator (28) bestimmt ist.  Shot settings is determined by a known random generator (28).
6. Ballwurfeinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß ein vorzugsweise im unteren Bereich des Ballmagazins (2) angeordnetes Zufuhrsteuerorgan (6) vorgesehen ist, von dem aus die Bälle (5) über eine vorzugsweise schlauchförmige Zufuhrbahn (4) der Ballauswürfeinrichtung (3) zugeführt werden. 6. Ball throwing device according to one of claims 1 to 5, characterized in that a preferably in the lower region of the ball magazine (2) arranged feed control member (6) is provided, from which the balls (5) via a preferably tubular feed path (4) Ball ejection device (3) are supplied.
7. BalIwurfeinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß im Bereich der Zufuhrbahn (4) ein Balldurchgangssensor (29) angeordnet ist. 7. Ball throwing device according to claim 6, characterized in that a ball passage sensor (29) is arranged in the region of the feed path (4).
8. BalIwurfeinrichtung nach Anspruch 7, dadurch gekennzeich net, daß bei Ausbleiben eines Sensorsignals über eine vorgebbare Zeitdauer eine Abschaltung der Ballauswurfeinrichtung (3) und/oder der Zufuhreinrichtung (6) erfolgt. 8. ball throwing device according to claim 7, characterized in that when there is no sensor signal for a predetermined period of time, the ball ejection device (3) and / or the feed device (6) is switched off.
9. Ballwurfeinrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß der Balldurchgangssensor jeweils den Beginn des in Abhängigkeit von der Schußeinstellung des durchgegangenen Balles bestimmten Zeitintervalls fest legt, nach dem die Zufuhr, des nächsten Balles erfolgt 9. Ball throwing device according to claim 7 or 8, characterized in that the ball passage sensor each determines the start of the time interval determined as a function of the shot setting of the passed ball after the next ball is delivered
10. BalIwurfeinrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß das Zufuhrsteuerorgan ein an sich bekannter, drehbar .gelagerter Bauteil (6) mit mehreren Aufnahmefächern für einzelne Bälle ist, und daß dieser Bauteil an seinen äußeren Umfangsflächen einen Reibbelag (24) aufweist. 10. ball throwing device according to one of claims 6 to 9, characterized in that the feed control member is a known, rotatably.. Bearing component (6) with a plurality of receiving compartments for individual balls, and that this component has a friction lining (24) on its outer peripheral surfaces having.
11. Ballwurfeinrichtung nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß die schlauchförmige 11. Ball throwing device according to one of claims 6 to 10, characterized in that the tubular
Zufuhrbahn durch einen Drahtwendel (4) gebildet ist.  Feed path is formed by a wire coil (4).
EP89909675A 1988-08-29 1989-08-28 Ball-throwing device, in particular for tennis balls Expired - Lifetime EP0383892B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT211188 1988-08-29
AT2111/88 1988-08-29

Publications (2)

Publication Number Publication Date
EP0383892A1 true EP0383892A1 (en) 1990-08-29
EP0383892B1 EP0383892B1 (en) 1993-08-11

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Family Applications (1)

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US (1) US5107820A (en)
EP (1) EP0383892B1 (en)
AT (1) ATE92780T1 (en)
AU (1) AU620445B2 (en)
CA (1) CA1324043C (en)
WO (1) WO1990001975A1 (en)

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Also Published As

Publication number Publication date
AU4186889A (en) 1990-03-23
EP0383892B1 (en) 1993-08-11
ATE92780T1 (en) 1993-08-15
WO1990001975A1 (en) 1990-03-08
AU620445B2 (en) 1992-02-20
US5107820A (en) 1992-04-28
CA1324043C (en) 1993-11-09

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