EP0037806B1 - Ballmaschine mit grosser Schussgenauigkeit - Google Patents

Ballmaschine mit grosser Schussgenauigkeit Download PDF

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Publication number
EP0037806B1
EP0037806B1 EP81870018A EP81870018A EP0037806B1 EP 0037806 B1 EP0037806 B1 EP 0037806B1 EP 81870018 A EP81870018 A EP 81870018A EP 81870018 A EP81870018 A EP 81870018A EP 0037806 B1 EP0037806 B1 EP 0037806B1
Authority
EP
European Patent Office
Prior art keywords
ball
striker
shaft
deviation
axis
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.)
Expired
Application number
EP81870018A
Other languages
English (en)
French (fr)
Other versions
EP0037806A2 (de
EP0037806A3 (en
Inventor
Georges Defosse
Joseph Hensenne
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
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 filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to AT81870018T priority Critical patent/ATE11872T1/de
Publication of EP0037806A2 publication Critical patent/EP0037806A2/de
Publication of EP0037806A3 publication Critical patent/EP0037806A3/fr
Application granted granted Critical
Publication of EP0037806B1 publication Critical patent/EP0037806B1/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

Definitions

  • European patent 80 200 346.7 EP-A-19311 published after the filing date of the present application describes, through a few exemplary embodiments, a device in which the percussion lever is of low mass and which is arranged to recover, before impact with the ball, the kinetic energy accumulated by the other elements of motion transmission.
  • a player modifies the point of percussion on the ball in such a way that the latter is animated by a rotational movement around an axis which depends on the position of the point of percussion. relative to the center of gravity of the ball.
  • European patent 79 200 221.4 EP-A-0018 444 published after the filing date of the present application describes a device which gives a left trajectory to the balloon by imposing on it, in the sending position, a speed rotation predetermined around a predetermined axis.
  • the percussive mass of the balloon launcher does not strike the balloon low enough to obtain the desired type of trajectory.
  • the trajectory given to the ball by the impact of the percussive mass must be modified by an adequate device.
  • the usual way is to arrange an inclined plane according to a slope chosen at a determined level.
  • the contact between the balloon and the inclined plane communicates to the balloon a rotation about a horizontal axis perpendicular to the greatest slope of the inclined plane.
  • This rotation modifies the trajectory of the ball by shortening its point of fall and gives a false rebound.
  • the ball is felt more harshly.
  • the modification of the coefficient of friction between the ball and the inclined plane depending on whether both are dry, wet, covered with mud ... the trajectory is very little repetitive during successive shots.
  • Patents US-A-3277878 and US-A-2646785 describe ball launching devices which, using elastic tensioners, gradually communicate the speed to the ball and whose gusset, driving the ball on the launching pad , is provided with prominences to prevent the ball from zigzagging on the launching pad and to limit the adhesion between the ball and the gusset during the ejection of the ball.
  • Patent AT-B-220528 describes a percussion device composed, at least, of two percussion elements hitting the ball one after the other. The first percussion element hits the ball to release it from its support, the second percussion element hits the ball to communicate its final speed.
  • the percussion device mounted at the end of the percussion lever, carries several percussion points arranged symmetrically with respect to the plane in which the percussion lever moves and simultaneously striking the ball.
  • the symmetrical arrangement of the percussion points of the percussive end with respect to the plane perpendicular to the axis of suspension of the lever passing through the departure trajectory of the ball compensates for the irregularities of the surface of the ball and greatly reduces the deformation of the outer envelope thereof.
  • this device called a percussion device improves the precision of the trajectory of the ball.
  • another device modifies the trajectory of the ball. It is arranged symmetrically with respect to the vertical plane passing through the firing axis.
  • FIG. 1 shows an exemplary embodiment of a percussion device comprising several percussion elements.
  • a percussion lever 2 is terminated by a fork made up of two teeth 3 each equipped, at the free end, with an axis 4 intended to receive two rollers 5 free to rotate around this axis 4.
  • L'orienta tion of each axis 4 is approximately parallel to the axis of rotation along which the ball turns when we want to communicate a left trajectory.
  • Each axis 4 is therefore parallel to the axis of rotation 6 of a presentation device 7 for the balloon 8.
  • the balloon 8 shown in phantom is placed on a small diameter cup 9 connected to a suction system (not shown) which maintains the balloon 8 on the cup regardless of the speed of rotation of the presentation device 7.
  • the orientation of the teeth 3 of the fork can be adjustable by an appropriate device for modifying the percussion points of the rollers 5 on the ball 8.
  • the percussion device 1 strikes, by means of the four rollers 5, the balloon 8 simultaneously at four points, the deformation of the outer envelope of the balloon 8 is small and practically does not interfere with the rotation given beforehand to the balloon 8 according to the axis 6.
  • the striking of the ball distributed in several points, requires less of its envelope and thus contributes to reducing wear.
  • FIG. 2 represents an exemplary embodiment of the device for deflecting or modifying the trajectory of the balloons.
  • a stirrup 10 made integral with the chassis 11 by fixing means comprises two branches 12 arranged symmetrically with respect to the plane defined by the arrival and departure paths of the ball.
  • This bracket 10 serves as a support for a mobile assembly 13 which can oscillate around a horizontal axis 14, placed perpendicular to the vertical plane passing through the firing axis to occupy either a high position or a low position as shown in the figure 2.
  • This movable assembly 13 comprises two forks 15 each threaded on a branch 12 of the stirrup 10 and joined together by a flat 16.
  • Each fork 15 carries an axis 17, parallel to the axis 14, around which a roller 18 freely pivots
  • These rollers or deflection elements 18 occupy a symmetrical position with respect to the plane perpendicular to the axis 14 passing through the firing axis.
  • the rollers 18 are of small diameter and of low inertia. The same is true for the rollers (5).
  • the position of the rollers 5 and 18 is symmetrical both to the plane of movement of the percussion arm 2 and to the shooting axis of the ball.
  • the symmetry with respect to the plane of movement of the percussion arm 2 ensures, on the one hand, good centering of the balloon 8 when the rollers 5 release it from the positioning cup 9 and project it forward.
  • the symmetry with respect to the firing axis allows, on the other hand, the rollers 18 to maintain the correct guiding of the balloon 8 when it crashes on these rollers and then reshapes resiliently to resume a more ascending trajectory.
  • the rollers are cylindrical in shape with strongly rounded edges so as not to damage the balloons.
  • shape, the diameter or the number of rollers can vary as long as the principle of a symmetrical arrangement with respect to the plane of movement of the percussion arm is respected.
  • the rollers 5 and 18 can be of frustoconical or hyperbolic shape.
  • the invention is in no way limited to the exemplary embodiments described by way of example.
  • it comprises percussion elements which are not mounted on the end of a percussion lever, but for example on the end of a piston.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pinball Game Machines (AREA)
  • Toys (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (6)

1. Ballmaschine zum Werfen eines Balls durch elastischen Stoß, die mit einer am Ende eines Schlaghebels (2) oder dergleichen montierten Schlagvorrichtung (1) ausgerüstet ist, um am Hubende des Schlaghebels (2) oder dergleichen einen auf einer Auflagevorrichtung (7) liegenden Ball (8) zu schlagen und in Richtung einer Ziellinie zu werfen, dadurch gekennzeichnet, daß die besagte Schlagvorrichtung (1) so ausgebildet ist, daß sie mehrere Schlagelemente (5) aufweist, die den Ball (8) gleichzeitig berühren und symmetrisch zu der Ebene angeordnet sind, in der sich der Schlaghebel (2) bewegt, und daß die besagte Ballmaschine eine Ablenkvorrichtung (10, 13, 14) zur Ablenkung des Balls (8) aufweist, die so ausgebildet ist, daß Ablenkelemente (18) in die Wurfbahn gebracht oder zurückgezogen werden können, die den Ball (8) gleichzeitig berühren und symmetrisch zu der durch die Ziellinie gehenden vertikalen Ebene angeordnet sind.
2. Ballmaschine gemäß Anspruch 1, dadurch gekennzeichnet, daß jedes Schlagelement (5) um eine Achse (4) drehbar ist, die ungefähr parallel zu einer Drehachse (6) der Auflagevorrichtung (7) ist, auf die der Ball (8) vor dem Schlagen gelegt wird, und daß jedes Schlagelement einen Durchmesser hat, der wesentlich kleiner als derjenige des Balls (8) ist, und außerdem nur eine geringe Trägheit besitzt, und daß jedes Ablenkelement (18) um eine ungefähr horizontale, zu der Ziellinie senkrechte Achse drehbar ist, und ebenfalls einen Durchmesser aufweist, der wesentlich kleiner als derjenige des Balls (8) ist. und außerdem eine geringe Trägheit besitzt.
3. Ballmaschine gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schlagvorrichtung (1) einen Einstellmechanismus aufweist, mit dem die Position der Schlagelemente (5) bezüglich des Schlaghebels (2) verändert werden kann.
4. Ballmaschine gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ablenkvorrichtung (10, 13, 14) einen Einstellmechanismus (19, 20) aufweist, mit dem die Position der Ablenkelemente (18)" bezüglich der Positionierungsschale (9) verändert werden kann.
5. Ballmaschine gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schlagvorrichtung (1) aus einer Gabel mit zwei Zinken (3) ` steht, von denen jede an ihrem freien Ende mit ..ner Achse (4) ausgerüstet ist, um die sich mindestens eine Rolle (5), die ein Schlagelement bildet, frei dreht, und daß beim Schlagen des Balls (8) jede Achse (4) ungefähr parallel zu der Drehachse (6) der Auflagevorrichtung (7) des Balls (8) ist.
6. Ballmaschine gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ablenkvorrichtung aus einem Bügel (10) besteht, der zwei Schenkel (12) aufweist, auf denen sich, um eine Achse (14), die senkrecht zu einer durch die Ziellinie verlaufenden vertikalen Ebene ist, ein beweglicher Teil (13) dreht, der aus zwei Gabeln (15) besteht, die durch eine Platte (16) miteinander verbunden sind, und von denen jede eine zu der Achse (14) parallele Achse (17) aufweist, um die sich eine Rolle (18) von kleinem Durchmesser und geringer Trägheit frei dreht, und daß der bewegliche Teil (13) ein Einstellsystem (19, 20) aufweist, mit dem die Position der Rollen (18) verändert werden kann.
EP81870018A 1980-04-04 1981-04-01 Ballmaschine mit grosser Schussgenauigkeit Expired EP0037806B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81870018T ATE11872T1 (de) 1980-04-04 1981-04-01 Ballmaschine mit grosser schussgenauigkeit.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE882650 1980-04-04
BE882650 1980-04-04
EP80200886 1980-09-22
EP80200886 1980-09-22

Publications (3)

Publication Number Publication Date
EP0037806A2 EP0037806A2 (de) 1981-10-14
EP0037806A3 EP0037806A3 (en) 1982-01-06
EP0037806B1 true EP0037806B1 (de) 1985-02-20

Family

ID=25659191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81870018A Expired EP0037806B1 (de) 1980-04-04 1981-04-01 Ballmaschine mit grosser Schussgenauigkeit

Country Status (3)

Country Link
EP (1) EP0037806B1 (de)
AT (1) ATE11872T1 (de)
DE (1) DE3168992D1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335701A (en) * 1980-03-31 1982-06-22 Bozich Stan A Ball projecting apparatus with adjustable ball impact means

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646785A (en) * 1950-11-21 1953-07-28 Goldman Martin Ball throwing device
US2805063A (en) * 1955-04-05 1957-09-03 Thomas J Butler Bat and ball game apparatus
AT220528B (de) * 1959-08-12 1962-03-26 Andreas Ing Palencsar Motorisch angetriebenes Ballwurfgerät
US3277878A (en) * 1964-04-27 1966-10-11 Orlando K Pankratz Baseball throwing machine
US3470859A (en) * 1966-08-23 1969-10-07 Lorenzo J Ponza Ball throwing machine with pivotal resilient mount
NL169414C (nl) * 1971-05-07 1982-07-16 Tech Handelsonderneming De Bru Trainingsinrichting voor het afgeven van ballen.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335701A (en) * 1980-03-31 1982-06-22 Bozich Stan A Ball projecting apparatus with adjustable ball impact means

Also Published As

Publication number Publication date
EP0037806A2 (de) 1981-10-14
ATE11872T1 (de) 1985-03-15
EP0037806A3 (en) 1982-01-06
DE3168992D1 (en) 1985-03-28

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