EP1882500B1 - Dispositif destiné à éjecter des balles - Google Patents

Dispositif destiné à éjecter des balles Download PDF

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Publication number
EP1882500B1
EP1882500B1 EP07014778A EP07014778A EP1882500B1 EP 1882500 B1 EP1882500 B1 EP 1882500B1 EP 07014778 A EP07014778 A EP 07014778A EP 07014778 A EP07014778 A EP 07014778A EP 1882500 B1 EP1882500 B1 EP 1882500B1
Authority
EP
European Patent Office
Prior art keywords
accelerating
lever
ball
balls
supply
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.)
Not-in-force
Application number
EP07014778A
Other languages
German (de)
English (en)
Other versions
EP1882500A1 (fr
Inventor
Ernst Scheiwiller
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.)
SCHEIWILLER, ERNST
Original Assignee
Scheiwiller Ernst
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 Scheiwiller Ernst filed Critical Scheiwiller Ernst
Publication of EP1882500A1 publication Critical patent/EP1882500A1/fr
Application granted granted Critical
Publication of EP1882500B1 publication Critical patent/EP1882500B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0025—Football
    • 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
    • A63B69/406—Stationarily-arranged devices for projecting balls or other bodies with rotating discs, wheels or pulleys gripping and propelling the balls or bodies by friction

Definitions

  • the present invention relates to a device for throwing balls, with a device for accelerating the balls.
  • the object of the present invention is to deliver the balls separated and controlled the accelerator device, as well as to eliminate other disadvantages of the prior art.
  • the present device for throwing balls 19 comprises a chassis 4, which has a substantially rectangular frame 5.
  • the present device further comprises a device 1 for accelerating the balls 19.
  • This accelerating device 1 comprises inter alia a housing 2, which has the shape of a flat cuboid.
  • This housing 2 is pivotally mounted in the frame 5 of the chassis 4.
  • the frame 5 has four legs 51, 52, 53 and 54.
  • the first shorter leg 51 of the frame 5 is located in the front region of the approximately rectangular chassis 4.
  • the third leg 53 is located in the rear region of the chassis 4.
  • the second leg 52 and the fourth leg 54 represent the longer sides of the rectangular frame 5 ,
  • the chassis further includes front rollers 55 and a rear 56 which are located on the underside of the frame 5. These rollers 55 and 56 may be provided with locking devices (not shown) so that the device can hardly change its position during its operation.
  • Each of the front rollers 51 is located on the underside of one of the longer frame legs 52 and 54 and they are arranged in the vicinity of the front frame leg 51.
  • the third roller 56 is located on the underside of the rear frame leg 51.
  • this rear frame leg 51 From the top of this rear frame leg 51 projects an approximately U-shaped guide bracket 57 up. From the top of the longer frame legs 52 and 54 is depending on an approximately V-shaped bracket 58 from.
  • the free end games Bock leg 581 and 582 are mounted on top of frame legs 52 and 54, respectively. At the point where the legs 581 and 582 of the bracket 58 meet, a pin 59 is mounted, which allows the accelerator 1 can be adjusted in a vertical plane.
  • the acceleration device 1 further comprises elongated acceleration units 6 and 7, which are located on the upper side 3 of the housing 2 and which are arranged at a distance from each other.
  • the respective acceleration unit 6 or 7 has a pair of deflection rollers 8 and 9, which are at a distance from each other.
  • the main body 81 of the deflection roller 8 or 9 has an upper end face 78 and a lower end face or base 79 and a curved outer face 82.
  • the vertical section through the deflection roll 8 or 9 has contours of the cross section of a biconcave lens , Consequently, the outer surface 82 of the deflection roller 8 or 9, which is rotatable about the rotation axis D, has the shape of a globoid, wherein the base body 81 of the deflection roller 8 or 9 can have the shape of a globoide wheel.
  • the radius of curvature of the arcuate outer surface 82 of the deflection roller 8 or 9 corresponds to the radius or diameter of the ball 19th
  • the globoiden outer surface 82 of the guide roller 8 and 9 are circumferential grooves ( Fig. 4 ).
  • the globoide outer surface 82 of the guide roller 8 and 9 five grooves 83, 84, 85, 86 and 87 on.
  • the grooves 83 to 85 are parallel to each other, they are perpendicular to the axis of rotation D of the guide rollers 8 and 9 and they are distributed along the axis of rotation D of the guide roller 8 and 9 at intervals from each other.
  • the grooves 83 to 87 are intended for receiving a respective belt of the respective acceleration unit 6 and 7 respectively.
  • the belt set 10 comprises three belts 101, 102 and 103.
  • the belt set 10 may also contain more than three belts or even only two belts. In the latter case, these are the outer belts 101 and 103. These are those belts 101 and 103 which lie in the grooves 83 and 87 of the guide rollers 8 and 9, respectively, which face the end faces 78 and 79 of the guide roller 8 and 9 are closest (not shown).
  • Fig. 4 In the illustrated case, only the center belt 102 is shown for ease of illustration.
  • the cross section of the respective groove 83 to 87 corresponds to the cross section of the belt 101 to 103, which the grooves 83 to 87 should receive.
  • the belts 101 to 103 may have a round cross-section or they may be V-belts. In the case shown, V-belts 101 to 103 are used. As is known, V-belts have converging side edges 104 and 105 (FIG. Fig. 4 ). In the outer region of the respective V-belt 101 to 103, where the ends of the belt flanks 104 and 105 have the greater distance from each other, there is the back 106 of the V-belt 101 to 103, which comprises a top surface 107 connecting the outer ends of the flanks 104 and 105.
  • the flanks 88 and 89 of the grooves 83 to 87 are designed to converge.
  • the grooves 83 to 87 are also designed so that the central axis M of the respective groove 83 to 87, which lies between the converging flanks 88 and 89 of the groove 83 to 87, to that portion of the globoiden outer surface 82 of the guide roller 8 and 9 respectively is perpendicular, in which the respective groove 83 to 87 carried out. It follows that the bottom 80 of the respective groove 83 to 87 is perpendicular to said central axis M.
  • the depth of the grooves 83 and the spacing of the groove flanks 88 and from one another are dimensioned such that the back 106 of the V-belt 101 to 103, including its cover surface 107, projects out of the groove 83 to 87.
  • the ball 19, which is located between the two acceleration units 6 and 7 ( Fig. 3 ) rests on the top surface 107 of the back 106 of the belts 101 to 103.
  • the respective groove 83 is thus embodied such that the cover surfaces 107 of the V-belts 101 to 103 inserted into the grooves 83 to 87 of the guide rollers 8 and 9, respectively, rest tangentially on the round surface of the ball 19.
  • At least one of the deflection rollers 8 and 9 is driven.
  • the front drive roller 8 can be driven.
  • these pulleys 8 sits firmly on the shaft 41 of a motor 39 and 40, which is located in the interior of the housing 2.
  • the acceleration unit 6 or 7 further comprises a reinforcing plate 11 which is fastened on the outside of the upper side 3 of the housing 2.
  • the shaft 41 of the drive motor 39 or 40 protrudes through the reinforcing plate 11.
  • the drive motor 39 or 40 is expediently an electric motor, it is assigned to the underside of the reinforcing plate 11 and it is attached to this plate 11.
  • the drive motor 39 or 40 could also be a hydraulic motor.
  • the other guide roller 9 of the acceleration units 6 and 7 is mounted in the illustrated case freewheeling and it sits on bearings 42 on a fixed shaft 43.
  • the lower end of this shaft 43 is attached to a tensioning device 45.
  • the reinforcing plate 11 has an edge portion 46 which is perpendicular to the rest of the reinforcing plate 11 and upright.
  • the tensioning device 45 has a support plate 47, which is mounted on the reinforcing plate 11 of the acceleration unit 6 or 7 in the longitudinal direction thereof displaceable and lockable.
  • the lower end of the fixed shaft 43 is fixed on the support plate 47.
  • This support plate 47 also has an edge portion 48, which to the remaining part of the support plate 47 is perpendicular and upright, so that this edge portion 48 extends to the edge portion 46 of the reinforcing plate 11 is practically parallel.
  • the tensioning device 45 also includes a screw 49, which is screwed into the edge part 46 of the reinforcing plate 11 and whose inner end rests against the outside of the edge part 48 of the support plate 47. By means of this screw 49, the distance between the axes A1 and A2 of the shafts 41 and 43 of the acceleration unit 6 or 7 and thus also the tension in the belts 101 to 103 can be adjusted.
  • the belts 101 to 103 of the acceleration units 6 and 7 each have an inside run 108 and an outside run 109.
  • the lying inside is Trumm 108, which faces the other acceleration unit 6 or 7.
  • the ball 19 is engaged with the inside run 108 of the acceleration units 6 and 7.
  • the distance between the inside runners 108 of the acceleration units 6 and 7 corresponds to the diameter of a ball 19, for example a football. However, this distance must be slightly smaller than the diameter of the ball 19 so that the backs 106 of the belts 101 to 103 can exert such a high pressure on the ball 19 that the ball 19 on the top surfaces 107 of the belts 101 to 103 during acceleration does not slip back.
  • the acceleration units 6 and 7 are not parallel to each other, as in Fig. 2 is shown.
  • the angle alpha which extends between the longitudinal axes L1 and L2 of the acceleration units 6 and 7, may be between 2 and 10 degrees. This has the consequence that the distance between the end portions of the acceleration units 6 and 7 is different. That portion of the accelerator device 1 in which the distance between the end portions of the acceleration units 6 and 7 is greater, The area of the acceleration device 1 in which the distance between the end parts of the acceleration units 6 and 7 is smaller represents the exit section 13 of the acceleration device 1.
  • the present device also includes a device 20 for receiving a supply of balls 19 (FIG. Fig. 1 ).
  • This storage device 20 has an advantageously at least partially funnel-shaped container 21 for receiving the stock of balls.
  • the container 21 comprises a circular outlet mouth 22 and a filling area 23 for balls 19.
  • the outlet mouth 22 of the storage device 20 lies in a horizontal plane, it lies above the accelerating device 1 and it is the entry portion 12 of the accelerator 1 in the horizontal direction upstream.
  • the vertical distance between the outlet mouth 22 of the storage device 20 and the entry section 12 of the accelerator device 1 is slightly larger than the diameter of a ball 19th
  • the container 21 has a curved, advantageously a banana-shaped course, wherein the vertical axis of the outlet orifice 22 merges into a virtually horizontal axis of the filling region 23 of the container 21.
  • the storage device 20 is designed to be pivotable relative to the acceleration device 1 in a horizontal plane and about the vertical axis of the outlet orifice 22.
  • a device 25 which can deliver the storage device 20 taken balls 19 to the accelerator 1.
  • This dispensing device 25 represents the connecting link between the storage device 20 and the accelerating device 1.
  • the dispensing device 25 comprises a tiltably mounted lever 26, which is located below the outlet orifice 22 of the storage device 20.
  • the tiltable Lever 26 has in the illustrated case a crescent-shaped main body, wherein the thickness of this lever 26 is smaller than the height thereof.
  • the concave side of the lever 26 opens against the outlet mouth 22 of the storage device 20 back.
  • the radius of curvature of the concave top of the crescent lever 26 may correspond to the radius or diameter of a ball 19.
  • a slot-shaped opening 35 is executed, which is the input part 12 of the accelerator device 1 partially upstream and partially within this inlet section 12.
  • This slot 35 is straight and its longitudinal direction coincides with the central axis MA of the accelerator 1.
  • the tilting lever 26 is designed as a two-armed lever, wherein the tilting axis 24 of such a lever 26 is located approximately in the middle of its length.
  • This tilting axis 24 is mounted on the underside of the upper housing part 3 by means of bearing blocks 34. These stand from the bottom of the upper housing part 3 from practically at right angles.
  • the second arm 29 of the lever 26 is located substantially below the upper housing part. 3
  • the first arm 28 of the lever 26 passes through the slot 35 in the upper housing part 3 and it protrudes from the slot 35.
  • the free end portion 33 of the first lever arm 28 is above the upper housing part 3 and it is intended for direct action on the ball 19 to convey this to the accelerator device 1.
  • the free end portion 33 thereof has a corner portion which would rest on the ball 19.
  • this sharp edges having corner portion 33 of the free arm end 33 could damage the surface of the ball 19.
  • this sharp corner part could cause a delay in the conveyance of the ball to the accelerator 1, depending on how much the ball 19 is inflated.
  • the ball 19 facing edge the free end 33 of the first lever arm 28 with a plate 44 (FIG. Fig.
  • This plate 44 is at right angles to the main plane of the lever 26. On the other hand, this impact plate 44 is inclined relative to the surface of the ball 19 so that it rests as large as possible on the surface of the ball 19 when the ball 19 is conveyed by the lever 26 to the accelerator device 1.
  • the plate 44 has a rectangular outline and it is advantageously welded at the free end 33 of the first lever arm 28 centrally.
  • the dispenser 25 also includes means 30 for actuating the tiltable lever 26 (FIG. Fig. 3 ).
  • This actuator 30 is in the illustrated case, an electric lifting cylinder 31. However, this actuator 30 may also be designed as a hydraulic cylinder.
  • the connected to the armature of the solenoid 30 at one end piston rod 32 is connected at the other end to the second arm 29 of the tilting lever 26.
  • a rail 36 and 37 is arranged on each of the longitudinal sides of the slot 35 on the upper side 3 of the housing.
  • the rails 36 and 37 are parallel to the slot 35 and they are designed as L-profiles.
  • the first leg 38 of the profiles 36 and 37 (FIG. Fig. 2 ) lies flat on the upper part 3 of the housing 2 and it is firmly connected to this upper part 3.
  • the second leg 39 of the profiles 36 and 37 is perpendicular to the upper part 3.
  • the distance between the second legs 39 is smaller than the diameter of the ball 19 so that it can rest on the upper edges of the second leg 39.
  • the present device also includes a control device 60, which may be attached to the guide bracket 57, for example.
  • This device 60 is designed to control the operation and cooperation of the individual devices of the present device.
  • This control device 60 contains circuits which control the speed of the Electric motors 39 and 40 can control each other independently. This results in different speeds of the belt sets 10 in the acceleration units 6 and 7, whereby one can achieve a deviation of the trajectory of the ball 19 from the central axis MA of the accelerator 1.
  • Such circuits could also be programmable, eliminating the need for manual operation of such control circuits.
  • such circuits can also work on a random basis.
  • the control device 60 also includes circuits which are connected to the lifting magnet 30. Such circuits send pulses to the solenoid, which provides the carriage of the balls 10 by means of the rocker arm 26 to the accelerator device 1. Such circuits may also operate at random, so that they send control pulses to the solenoid 30 at irregular intervals while the belt sets 10 are running without interruption. This ensures that the balls 19 reach the accelerator 1 at irregular intervals and then leave them.
  • the tilting lever 26 is in its substantially horizontal position, so that the free end portion 33 of the first lever arm 28 is in its lower position.
  • the distance between this free end portion 33 of the first lever arm 28 and the dispensing opening 22 of the storage device 20 is at least as large as the diameter of the ball 19.
  • the ball 19 to be transported soon rests on the plate 44 on this free end portion 33 of the ball first lever arm 28 is attached.
  • the soon to be carried ball 19 rests on the edges of the vertical legs 39 of the L-rails 36 and 37 (FIG. Fig. 3 ). The next ball 19 is still in the storage device 20 and it rests on this soon to be transported ball 19.
  • the control device 60 sends a signal to the electromagnet 30. This pulls the piston rod 32 back, so that the second and lower lever arm 29 is pulled down jerkily. This has the consequence that the first lever arm 28 of the two-armed lever 26 is moved upwardly jerkily.
  • the support plate 44 on the first lever arm 28 jumps on an arcuate path from right to left ( Fig. 1
  • the ball 19 between the inner Trumme 108 of the belt 101 to 103 of the belt 101 to 103 of the acceleration units 6 and 7 is taken laterally, taken on the Speed of these inner Riementrumme 108 of 101 accelerated and thrown in the direction of movement BR from the device.
  • the speed of forward movement of the free lever end 33 can even be adjusted so that there is a relatively small difference between the speed of the conveyed ball 19 and the speed of the run 108 of the belt set 10 with which the ball 19 in the accelerator 1 comes into contact.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Pinball Game Machines (AREA)
  • Temperature-Responsive Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)

Claims (12)

  1. Système pour éjecter des balles, comprenant un dispositif d'accélération (1) pour accélérer les balles, qui présente des courroies (101, 102, 103) pour accélérer les balles (19), de même qu'est prévu un dispositif de distribution (25) qui distribue les balles individuelles (19) au dispositif d'accélération (1), le dispositif de distribution (25) se trouvant au moins en partie entre le dispositif de stockage (20) et le dispositif d'accélération (1), caractérisé en ce que le dispositif de distribution (25) comprenant un levier basculant (26) qui est disposé de telle sorte que sa partie d'extrémité (28) distribuant les balles (19) se trouve à la fois dans la région de l'embouchure de sortie (22) du dispositif de stockage (20) et dans la région d'entrée (12) du dispositif d'accélération (1), et le levier (26) étant raccordé à un dispositif d'actionnement (30).
  2. Système selon la revendication 1, caractérisé en ce que le dispositif d'accélération (1) présente des unités d'accélération allongées (6, 7) qui se trouvent à une distance l'une de l'autre qui correspond approximativement au diamètre d'une balle (19), en ce que l'unité d'accélération respective (6, 7) présente un jeu (10) d'au moins deux courroies (101 ; 103) qui sont guidées sur une paire de poulies de renvoi (8, 9), en ce qu'au moins une poulie (8) de la paire respective peut être entraînée, et en ce que les unités d'accélération (6, 7) sont essentiellement espacées les unes des autres de la même distance, les axes longitudinaux (L1, L2) des unités d'accélération (6, 7) formant un angle α de 2° à 10°.
  3. Système selon la revendication 2, caractérisé en ce que la surface extérieure (82) du rouleau respectif (8 ; 9) présente une coupe longitudinale biconcave, le corps de base (81) de la poulie de renvoi respective (8, 9) présentant la forme d'une roue globoïde, en ce que le rayon de la surface extérieure globoïde (82) de la poulie de renvoi (8 ; 9) correspond au rayon de la balle (19), en ce que des rainures périphériques (83 à 87) sont réalisées dans la surface extérieure globoïde (82) de la poulie de renvoi (8, 9), lesquelles s'étendent parallèlement les unes aux autres et sont réparties à distance les unes des autres le long de l'axe de rotation (D) de la poulie de renvoi (8 ; 9), en ce que chaque rainure (83 à 87) est prévue pour recevoir l'une des courroies (101 ; 102 ; 103) de l'unité d'accélération respective (1) et en ce que la section transversale de la rainure (83 à 87) correspond à la section transversale de la courroie (101 ; 102 ; 103).
  4. Système selon la revendication 3, caractérisé en ce que la courroie (101) est une courroie trapézoïdale, en ce que les flancs de la rainure (83) convergent avec les flancs de la courroie trapézoïdale (101), en ce que l'axe médian (M) de la rainure (83) situé entre les flancs de la rainure (83) convergents est perpendiculaire à chaque section de surface de la surface extérieure globoïde (82) de la poulie (8 ; 9), dans laquelle est réalisée la rainure respective (83), et en ce que la rainure respective (83) est réalisée de telle sorte que la surface de recouvrement (107) de la courroie trapézoïdale insérée (101 ; 102 ; 103) s'applique tangentiellement à la surface périphérique de la balle (19).
  5. Système selon la revendication 1, caractérisé en ce qu'un dispositif (20) pour recevoir un stock de balles (19) est prévu, en ce que ce dispositif de stockage (20) est associé à la partie d'entrée (12) du dispositif d'accélération (1) et en ce que le dispositif de stockage (20) peut être réalisé de manière à pouvoir pivoter dans un plan horizontal par rapport au dispositif d'accélération (1).
  6. Système selon la revendication 5, caractérisé en ce que le dispositif de stockage (20) présente un récipient (21) de préférence au moins en partie en forme d'entonnoir pour recevoir le stock de balles (19) et en ce que l'embouchure de sortie (22) de ce récipient (21) est associée à la partie d'entrée (12) du dispositif d'accélération (1).
  7. Système selon la revendication 2, caractérisé en ce que le dispositif de stockage (20) est disposé de telle sorte que l'embouchure de sortie (22) du récipient de stockage (20) soit disposée au-dessus de la partie d'entrée (12) du dispositif d'accélération (1) et en ce que la distance entre les parties d'extrémité des unités d'accélération (1) se trouvant dans cette région d'entrée (12) du dispositif d'accélération (1) est plus grande que le diamètre d'une balle (19).
  8. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'actionnement (30) est un cylindre de levage électrique (31).
  9. Système selon la revendication 1, caractérisé en ce que le levier basculant (26) a un corps de base (27) s'étendant en forme de croissant, en ce que le côté concave du levier (26) s'ouvre vers l'embouchure de sortie (22) du dispositif de stockage (20) et en ce que le rayon de courbure du côté concave du levier en forme de croissant (26) correspond au rayon de la balle (19).
  10. Système selon la revendication 1, caractérisé en ce que le levier basculant (26) est un levier à deux bras, en ce que l'une des parties d'extrémité (28 ; 29) d'un tel levier (26) assure la distribution des balles (19) au dispositif d'accélération (1) et en ce que le dispositif d'actionnement (30) est raccordé à l'autre bras du levier à deux bras (26).
  11. Système selon la revendication 1, caractérisé en ce que le dispositif d'accélération (1) est monté du côté supérieur (3) d'un boîtier (2), en ce qu'une ouverture en forme de fente (35) est réalisée dans le côté supérieur du boîtier (3) et en ce que le levier basculant (26) est disposé sur le boîtier (2), par rapport à cette fente (35), de telle sorte que les parties d'extrémité (28, 29) du levier basculant (26) puissent passer à travers la fente (35).
  12. Système selon la revendication 2, caractérisé en ce que la poulie de renvoi entraînable (8) des unités d'accélération respectives (6, 7) est raccordée à un moteur électrique (39 ; 40), en ce que cette poulie d'entraînement (8) est associée à la région de sortie (13) du dispositif d'accélération (1) et en ce qu'un dispositif de commande est prévu, lequel commande le mode de fonctionnement des dispositifs individuels du système.
EP07014778A 2006-07-28 2007-07-27 Dispositif destiné à éjecter des balles Not-in-force EP1882500B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH12392006 2006-07-28

Publications (2)

Publication Number Publication Date
EP1882500A1 EP1882500A1 (fr) 2008-01-30
EP1882500B1 true EP1882500B1 (fr) 2010-05-26

Family

ID=38669752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014778A Not-in-force EP1882500B1 (fr) 2006-07-28 2007-07-27 Dispositif destiné à éjecter des balles

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EP (1) EP1882500B1 (fr)
AT (1) ATE468895T1 (fr)
DE (1) DE502007003906D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009132471A1 (fr) * 2008-05-02 2009-11-05 ETH Zürich Lance-balles destiné à générer des tirs à spin reproductibles dans des directions quelconques
ITTV20100121A1 (it) * 2010-09-02 2012-03-03 Silvia Maiutto Macchina lancia palle terra-terra e terra-aria
DE202012005968U1 (de) 2012-06-21 2012-08-08 Thomas Reiter Vorrichtung zur dynamischen Beschleunigung Ballkanone
CN103585749B (zh) * 2013-11-15 2016-02-03 兰州大学 篮球投篮综合训练系统
CN105749529A (zh) * 2016-04-05 2016-07-13 安徽机电职业技术学院 一种智能防倾倒自动计数乒乓球发球机
CN105749530A (zh) * 2016-04-05 2016-07-13 安徽机电职业技术学院 一种节能型智能棒球发球机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844267A (en) * 1973-05-07 1974-10-29 J Mohr Tennis ball pitching apparatus with anti-jamming ball feed mechanism
NL7605989A (en) * 1976-06-03 1977-12-06 Ir Frederik Willem Joseph Schw Ball game training equipment - has belts fitting loosely round ball projecting rollers
US6440013B1 (en) * 2000-03-14 2002-08-27 Harvey B. Brown Pitching machine
FR2861312A1 (fr) * 2003-10-24 2005-04-29 Gerardus Cornelis Ouwerling Dispositif afin de propulser des ballons ou des balles rond(e)s utilise(e)s dans divers sports (football, tennis, etc)

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Publication number Publication date
DE502007003906D1 (de) 2010-07-08
ATE468895T1 (de) 2010-06-15
EP1882500A1 (fr) 2008-01-30

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