EP0372249A1 - Dispositif pour le ramassage de balles, en particulier de balles de tennis et/ou pour le planage de court de jeu - Google Patents

Dispositif pour le ramassage de balles, en particulier de balles de tennis et/ou pour le planage de court de jeu Download PDF

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Publication number
EP0372249A1
EP0372249A1 EP89120769A EP89120769A EP0372249A1 EP 0372249 A1 EP0372249 A1 EP 0372249A1 EP 89120769 A EP89120769 A EP 89120769A EP 89120769 A EP89120769 A EP 89120769A EP 0372249 A1 EP0372249 A1 EP 0372249A1
Authority
EP
European Patent Office
Prior art keywords
ball
collecting arm
collecting
balls
tube
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
EP89120769A
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German (de)
English (en)
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EP0372249B1 (fr
Inventor
Bruno Wilbert
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.)
TRANSITA VERTRIEBS- und HANDELSGESELLSCHAFT mbH
Original Assignee
TRANSITA VERTRIEBS- und HANDELSGESELLSCHAFT mbH
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 TRANSITA VERTRIEBS- und HANDELSGESELLSCHAFT mbH filed Critical TRANSITA VERTRIEBS- und HANDELSGESELLSCHAFT mbH
Priority to AT89120769T priority Critical patent/ATE84978T1/de
Publication of EP0372249A1 publication Critical patent/EP0372249A1/fr
Application granted granted Critical
Publication of EP0372249B1 publication Critical patent/EP0372249B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B47/00—Devices for handling or treating balls, e.g. for holding or carrying balls
    • A63B47/02—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting
    • A63B47/025—Installations continuously collecting balls from the playing areas, e.g. by gravity, with conveyor belts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B47/00—Devices for handling or treating balls, e.g. for holding or carrying balls
    • A63B47/02—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting
    • A63B47/024—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting for collecting by using a sweeping means moving across the playing surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2208/00—Characteristics or parameters related to the user or player
    • A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children

Definitions

  • the invention relates to a device for collecting balls, in particular tennis balls, and / or for smoothing the playing surface.
  • the process of collecting the balls represents an interruption of the playing and training process, which can be undesirable for many reasons.
  • a ball-throwing machine is used to train one or more tennis players, which delivers a large number of balls in a relatively short time
  • the ball-collecting process takes a relatively long time in relation to the effective training time and thus increases the relative effort for the training, especially if the ball machine and / or the space is rented per unit of time, in particular by the hour.
  • the ball-gathering process is unpopular because it is not a physical activity in itself. Ball boys for manual collection are hardly available anymore.
  • Ball collecting devices are therefore already known which are intended to facilitate the collection, in particular, of tennis balls.
  • Known ball collecting devices of this type are equipped with a suction pipe which sucks the balls from the floor of the tennis court and can transport them to a collecting device - a basket.
  • Such a ball collecting device saves the player having to bend down, but not walking around on the playing field and the adjacent area, in order to pick up all the balls which are generally scattered around to take.
  • the ball collection, which is carried out with known ball collecting devices of this type is still too cumbersome and takes too long.
  • the invention has for its object to provide a device which balls, which lie on a tennis court half, largely and automatically in a short time in an area on the tennis court from which they can be easily picked up.
  • the device for smoothing the playing surface should in particular be suitable from covering particles, so that manual preparation of the space before or after the game can largely be dispensed with.
  • the facility should also be designed so that it can be accommodated on a tennis court without disrupting the game.
  • This device is particularly suitable for driving balls together on tennis courts or playground halves on which there is no ball machine, so that they can be picked up comfortably from a point or a small area of the court. If necessary, another automatic device can be used for this purpose. In a simple basic version, the device drives the balls together on one side of a space.
  • the device can be equipped with a collecting arm according to claim 5 with a smoothing element facing the floor, which is used for automatically smoothing the surface of the square, ie for evenly distributing and optionally compacting coating particles.
  • the device according to claim 1 has the features that a collecting arm across the floor of the tennis court transverse to its longitudinal axis, i.e. the longitudinal axis of the collecting arm is movable, which is guided at one of its two ends in a running rail.
  • the collecting arm can preferably be moved at right angles to the network of the tennis court and thus transversely to its own axis in order to completely cover the tennis court half.
  • the running rail on which a carriage on which the collecting arm is attached, can be moved, is preferably arranged at a head end of the tennis court. There it enables the collecting arm to be moved at right angles to the tennis court network and least disturbs the play.
  • the formation of the collecting arm means that the receiving and sliding console is arranged at a distance above the floor that is less than half a tennis ball diameter. With this dimensioning, the receiving and sliding console can easily pick up and collect the balls, especially if they are bevelled on the outside, when the balls come up against an abutment.
  • a plurality of drive wheels are preferably arranged offset in the direction of the longitudinal axis of the collecting arm.
  • the drive is very safe without any significant strain on the tennis court floor.
  • the drive wheels are particularly advantageously coupled to one drive element each and this is either synchronous, i.e. drivable at the same speed, or drivable at different speeds, that the collecting arm describes a circle around its pivot point.
  • each drive element can consist of an electric motor and a gearbox, which couples the shaft of the electric motor to the drive wheel.
  • the collecting arm is moved in a uniform translatory manner over the floor of the tennis court.
  • the collecting arm can also describe an arc around its fulcrum by means of defined different drive speeds of the individual drive wheels. The last control is activated when the collecting arm is to be moved from its rest position into a working position or vice versa.
  • the drive wheels serve to control the drive wheels at least two offset switches in the direction of the longitudinal axis of the collecting arm, which are actuated by the collecting arm, the end positions.
  • the limit switches can be arranged outside the collecting arm, for example on the side walls which enclose the tennis court, so that they are actuated there by the collecting arm when the latter has completely moved to a side wall.
  • the control can preferably take place in such a way that the limit switches are assigned to the drive elements, which in each case move the collecting arm towards the relevant one of the limit switches.
  • a partial area of the floor of the tennis court i.e. specifically a tennis court half, enclosed on at least three sides by a guide rail with an inclined surface, the guide rail connecting to vertical boundaries of the partial area, especially the walls around the tennis court, and to the net.
  • the guide bar has the function of providing a defined arrangement of the receiving and sliding console of the collecting arm in its end positions, by the inclined surface of the balls raised by the receiving and collecting console rolling onto the conveyor belt above the receiving and sliding console.
  • the guide bar is arranged in a U-shaped plan view in order to enclose one half of the tennis court, the vertical boundaries being formed by two walls delimiting the tennis court with the net in between.
  • the guide bar is designed in such a way that, when the collecting arm is applied, it leaves no space in which tennis balls are not detected.
  • the guide bar is rounded in the corners in order to be adapted to a corresponding shape of the collecting arm or of the carriage in this area.
  • the construction of the collecting arm includes the features that the receiving and sliding brackets prior to their beveling, i.e. outside, each have an elevation on which the rotating conveyor belt rests, which is also provided on the outside with a ring-shaped elevation on which a deflection disk arranged at a deflection point of the rotating conveyor belt, on which the conveyor belt rests at the deflection point.
  • the conveyor belt is essentially horizontal, but is inclined somewhat inwards to the longitudinal axis of the collecting arm on the elevations, which also improve the sliding of the conveyor belt on the receiving and collecting console, since the conveyor belt does not lie with its entire surface.
  • contact strips are arranged according to claim 14 on the running rail, with which contacts attached to the carriage engage.
  • the described variant of the device according to claims 1-14 can advantageously be supplemented by a ball collecting device which can be used in connection with a ball throwing machine and sweeps over the other half of the tennis court.
  • a ball collecting device which can be used in connection with a ball throwing machine and sweeps over the other half of the tennis court.
  • two copies of the described variant of the facility can also cover a total of both halves of the tennis court. The latter arrangement is particularly recommended when playing with a trainer who uses a large number of balls.
  • the ball collecting device It is possible to operate the ball collecting device simultaneously while the ball throwing machine is in operation, so that no interruption of the training operation is required. In particular, higher ball delivery rates of the ball throwing machine are possible over a long time. Renting a ball machine can be economically attractive through the device for collecting the balls, which results in improved use of the ball throwing machine.
  • the device is characterized by simple operability, which is essentially limited to actuation of electrical switching elements, which can be combined in a control panel.
  • Essential parts of the device for collecting the balls can be made of plastic with little wear and with little manufacturing effort. This applies in particular to the guide bar according to claim 11, which is preferably arranged in a ring including a tennis court half.
  • a variant of the device which is suitable both for collecting balls and for smoothing the playground, namely a tennis court if it is provided with a particulate covering, has the features according to claim 15 that the collecting arm has a ball-repellent outer profile and that Flat ball receptacles are arranged on the long sides of the playground to which the collecting arm can be moved.
  • the collecting arm has a ball-collecting function in connection with the ball receivers, but without such channels the collecting arm as Can act smoothing, which evenly distributes a particulate court surface and also drives balls to one side of the playground, namely the long side of the playground to which it is moved.
  • the collecting arm is oriented transversely to the network of a tennis court and is moved along the network.
  • This variant of the device is that both halves of a tennis court can be used both for coaches and for playing without disturbing the players or the coach. Training with a ball machine is easily possible.
  • This variant of the device can therefore be used very versatile. It is based on the variant of the facility defined first and can be supplemented with its characteristics.
  • the last-mentioned means comprises at least a flat circumferential horizontal conveyor is arranged for the balls according to claim 16 in the ball receiver channel.
  • this horizontal conveyor With this horizontal conveyor, the balls that were driven into the ball receiving channel by the collecting arm can be collected in one place. Variants of this horizontal conveyor which are particularly expedient are given below.
  • the ball receiving groove on the side facing the collecting arm has a flat slope and the outer profile of the collecting arm is retracted in a shape-like manner on its outside, ie it springs back so that the flat slope of the ball receiving groove can be approximately positive.
  • the tennis balls driven to the ball receiving channel are thus pushed securely into the ball receiving channel through the collecting arm.
  • the transport to a specific collecting point need not be carried out exclusively by the collecting arm. Rather, the collecting arm can be reset immediately if it has pushed the tennis balls driven onto one side of the tennis court into the ball receiving groove on this side.
  • the ball receiving channel has two endless belts which run flat next to one another, wherein two mutually facing internal trims rest on the channel and two mutually facing external trims are covered by the outer profile of the swivel arm.
  • the sections of the endless belt that are not required for the ball transport are thus protected.
  • the endless belts are designed in particular as round belts.
  • a particular advantage of this arrangement of the endless belts in one plane is that the ball receiving groove can be made flat and rises only slightly above the ground.
  • the round belts as endless belts enable a high ball transport speed with safe ball guidance.
  • the collecting arm has a smoothing element directed towards the bottom, as shown in claim 5, which, according to claim 19, can preferably be pivoted about an axis lying parallel to the longitudinal axis of the collecting arm.
  • the pivotability means that when the collecting arm is moved, then stopping and reversing the direction of movement, no burr-shaped accumulations of the coating particles are formed or remain.
  • the pivoting position of the smoothing element is preferably motorized reversed so that the smoothing element forms a wedge-shaped gap to the bottom, which is open to the front in the direction of movement.
  • An overall device for collecting balls using the collecting arm with ball receptacles is according to claim 20 that on a front side of the playground half between the longitudinal sides of the playground, to which the collecting arm can be moved, a further flat ball receiving groove is arranged, which is directed at the corners to arranged on the longitudinal sides of the playground is, and that a ball collector is arranged on the further ball receiving channel.
  • the other ball receiving channel can be fed by both ball receiving channels on the long sides of the playground.
  • the direction of movement of the horizontal conveyor on the further ball receiving channel can either be switched depending on which ball receiving channel delivers balls to it, or the horizontal conveyor of the further ball receiving channel can be divided such that it in any case transports balls to the ball collector.
  • ball receiving channels in the further ball receiving channels cooperating with the ball collector according to claim 21 depending on a short conveyor belt is at the corners, where the ball receiving channels meet, arranged diagonally between the abutting ball receiving channels.
  • the ball collector is provided with a vertical conveyor - approximately - between the level of the ball receiving channel, which is also referred to as the conveyor channel, and a ball tube which can be pivoted above head height.
  • This ball tube which is fed from the ball collector, makes it practically possible for a trainer to continue without hindrance is constantly supplied with balls, which he can pass on to the player to be trained. It is therefore not necessary for the trainer to remove the balls from a ball container. The trainer's ball release frequency can thus be increased.
  • the balls emerging from the ball tube controlled individually or in a row, can be comfortably hit by the trainer, since the balls falling from the ball tube jump sufficiently high from the court.
  • the ball tube can be swiveled and can thus be swiveled forward to the impact line, for example.
  • a telescopically displaceable supply pipe can be arranged between the ball collector and a ball machine - if not only to be played with the trainer. Due to the telescopic displaceability, the connection between the ball collector and the ball machine is maintained with different positioning of the ball machine.
  • the baling machine In order that the sweeping over the playground half is not impeded by the collecting arm by the baling machine, the baling machine according to claim 24 preferably at a distance to each other automatically alternately raisable and lowerable wheels or feet formed.
  • the position of the collecting arm with respect to the ball machine, especially the wheels or feet sensing sensors are provided, which control the lifting and lowering of the feet so that the collecting arm can pass under the ball machine while maintaining the position of the ball machine.
  • the speed of movement of the collecting arm can be reduced by a sensor when it passes under the ball machine.
  • a particularly advantageous embodiment of the vertical conveyor in the ball collector is according to claim 25 in that the vertical conveyor has two rotating belts with two upward running strands facing each other at a distance from the balls.
  • the vertical conveying speed can thus be increased considerably since the balls can follow one another directly.
  • the balls are practically clamped between the mutually facing strands of the vertical conveyor during transport, in accordance with the embodiment of claim 25.
  • a vertically adjustable ejector is arranged in the upper region between the endless conveyors.
  • a lifting magnet is used in particular for vertical adjustment.
  • the balls are fed to the tube or the ball receiving device which is about to be activated.
  • the device according to claim 29 can have features that the ball tube and / or the supply tube can be closed by a controlled flap. As described, this allows the removal of the balls from the ball tube for training to be individually controlled. By operating the flap on the supply tube, on the other hand, the operation of the ball machine can be monitored and, in particular, made dependent on the payment of a fee - insertion of a coin.
  • the device can be developed so that an output opening is guided to a deflecting tube pivotable with a lifting magnet, which leads either to a ball cage or a closed ball container.
  • This swiveling deflection tube thus represents an additional switch for the balls to be dispensed.
  • the balls can thus be collected, for example, in four stations, the ball tube, the ball machine, a basket for the balls or a closed ball storage from which the balls are made cannot be removed easily.
  • a counter can be arranged at an outlet opening of the deflecting tube in order to control the balls which have been dispensed and used for playing or training. This counter can also be used to check the completeness of the balls.
  • each of these tubes is connected to a weight bridge with a contact according to claim 35, which is actuated by the weight of the supply tube or the ball tube, if a predetermined one Number of balls in the tube is exceeded.
  • the vertical conveyor is switched off in good time by actuating the contact.
  • an intermediate store with two auxiliary vertical conveyors extending upward from the ball receiving channel and a horizontal conveyor belt is arranged between the ball receiving channel and the vertical conveyor Vertical conveyor leads.
  • An intermediate store is formed above the horizontal conveyor, from which the balls are automatically actuated by the horizontal conveyor be fed to the vertical conveyor of the ball collector.
  • the other horizontal conveyor belonging to it consists of a conveyor belt running around two superimposed levels, which is guided laterally in a guide profile. Soiling of the central part of the ball receiving groove, in particular in ash places, is avoided, since any coating particles are transported to the deflection points of the horizontal conveyor and fall there. Furthermore, the horizontal conveyor on the side can hardly be dismantled or damaged by unauthorized persons, especially children.
  • the last-described variant of the collecting arm is advantageously movable according to claim 36 in a guide rail which is arranged parallel to the network of the playing field and which consists of two mutually parallel profiles made of conductive material, which include a gap in which an impeller is guided, wherein the profiles fall flat outwards and there is a pantograph on each guide rail that also serves as a conductor rail.
  • this guide rail can be designed so flat and rising a little above the ground that it does not form a dangerous tripping edge.
  • a variant of the device according to claim 37 is that a grid mesh strip, which extends at least over the width of the field, can be moved at least over one half of the space in its longitudinal direction.
  • a simple rope guide on both sides of the playground can advantageously be used for this purpose.
  • the mesh can be walked on and is particularly suitable for outdoor spaces.
  • Figures 1 et seq. Relate to embodiments of the collecting arm 133 in FIG. 1 or of the mesh strip 196 in FIG. 18, which are provided for driving the tennis balls together on a court side and / or for smoothing the court surface if they have a particulate covering, in particular one Has ash coating.
  • ball receptacles 137-138 are arranged along the - half - longitudinal sides of the playground and the front side according to FIG. 1. Such ball receptacles are shown in cross section in FIGS. 2 and 14.
  • a ball collector is arranged on and partially above the ball receiving channel 137, as shown in FIGS Figures 9 and 13 can be seen overall.
  • FIG. 1 an embodiment of the device is shown roughly schematically in FIG. 1, which has a collecting arm 133 which runs across a net 133a on a ball run groove 137 is movable.
  • the collecting arm has arranged along its longitudinal extent, indicated with dots, but not provided with reference numerals, and associated contact switches, so that it can be moved until it lies evenly against one of the ball receptacles 138, 139.
  • 1 further schematically indicates how a ball tube with a closable opening for delivering balls to a trainer is pivotably attached to a ball collector 157.
  • a supply pipe 159 which is telescopically expandable, leads to a ball machine 160.
  • the mobility of the supply pipe is indicated by two double arrows, not designated.
  • the ball collecting movement is marked by two angled arrows 137a, 137b.
  • FIG. 2 the shape of the profile of the ball receiving channel 137 is shown with associated broken guide part 135 for the collecting arm 133.
  • the roller like the other rollers, is each driven by an electric motor.
  • the ball receiving channel 137 has an external slope 137a, which serves to slide or roll tennis balls, eg 131, if corresponding ball receiving channels 138, 139 are arranged on the longitudinal sides of the playground.
  • the tennis balls roll to a central flat section 137b over inward slopes where they are transported in the longitudinal direction of the ball receptacles.
  • the central flat portion 137b can also be referred to as a bottom.
  • a horizontal conveyor is used to transport the balls over the floor.
  • it consists of two endless belts 138a, 139a arranged circumferentially next to each other.
  • the mutually facing strands of these endless belts lie on the floor 137b, while the respective other dummies move in cavities of the ball receiving channel, which are not marked.
  • the balls are well guided through the internal trumms and transported at high transport speeds.
  • rollers 148, 149 are mounted displaceably against springs 140, 141 in the collecting arm. If a person accidentally steps on the collecting arm, it will not be easily damaged due to the resilience of the springs.
  • the outer profile or a housing 133b is curved at the top so that the balls can roll off, and is undercut laterally to match the slope 137a of the ball receiving groove.
  • the most protruding are limit switches 142, 143, which are wired to switch off the drives of the running wheels 134, 134a when the collecting arm hits one of the ball receptacles.
  • a brush 144 which is used to smooth the square surface by evenly distributing particulate coating, can be raised or lowered on one side in the direction of the double arrows 144a, 144b.
  • the adjustment of the brush 144 is carried out so that a wedge-shaped gap is formed which is open in the direction of movement of the collecting arm.
  • FIG. 4 shows a transition point between the two ball receiving grooves 137, 138 arranged at right angles to one another in the plan view, at which a small horizontal conveyor 150 is arranged diagonally. This horizontal conveyor facilitates the transition of the tennis balls from the ball receiving channel 138 to the ball receiving channel 137 and thus to the ball collector 157.
  • FIGS. 5-7 show how the collecting arm 133 moves under the ball machine 160 when it is driven by the electric motor 147, see FIG. 3 and further electric motors in the direction of the arrows not shown in FIGS. 26-28.
  • Sensors or contact switches 161, 162 sense the position of the collecting arm 133.
  • the ball machine is on support wheels 165, 166, see Fig. 5 when the collector arm reaches sensor 161, the support wheels 163, 164 are lowered and the inner support wheels 165, 166 are tightened, see Fig. 6 when the collector arm 133 is below the sensor 162 is driven, the original configuration of the support wheels 163-166 is restored, see FIG. 7.
  • the overall structure of the ball collector 157 is shown in FIGS. 9 and 13.
  • the ball collector includes two small auxiliary vertical conveyors 187, 188, which receive balls conveyed in the direction of arrows 132, 132a and can enter them into a catch basin 189, where the balls are temporarily stored. There they are transported by a horizontal conveyor 190 to the foot of a vertical conveyor 173, which is shown in detail in FIG. 10. 10, however, the vertical conveyor is shown without the horizontal conveyor 190 being interposed above the ball receiving channel 137.
  • the vertical conveyor 173 consists essentially of two vertically arranged revolving belts 165, 165a, which are arranged at such a distance from one another that a tennis ball 131 is held clamped between them.
  • the two circulating belts 165, 165a are held by deflection rollers 166-169, of which the lower deflection rollers 166, 167 also define the ball receiving opening of the vertical conveyor.
  • an ejector 170 is arranged which can be adjusted electromagnetically so that it can eject the balls clamped between the bands at an outlet opening 172 or at a lower opposite point, which cannot be seen in the section in FIG Ball exit opening is defined.
  • the adjustability of the ball ejector 170 with a lifting magnet 171 is indicated in FIG. 11, see double arrow, not shown.
  • the illustration in FIG. 11 is rotated by 90 ° with respect to that in FIG. 10.
  • the outlet opening 172 leads to a pipe 174a according to FIG. 11.
  • a deflecting tube 174 can also be adjustable, specifically about a vertical axis with the lifting magnet 179, see FIG. 12. Depending on the setting of the deflecting tube 174, the balls are transported into an outlet opening 181 to a closed ball storage 178 or to an open ball basket 177, see also Figures 9 and 13.
  • FIG. 9 there is a further outlet opening to a supply pipe 159, which is guided telescopically to the ball machine 160 and can be closed at its lower section by a flap 175, via an outlet opening (not designated) to the deflection tube 134.
  • a supply pipe 159 which is guided telescopically to the ball machine 160 and can be closed at its lower section by a flap 175, via an outlet opening (not designated) to the deflection tube 134.
  • an outlet opening for the ball tube 158 in the area of the vertical conveyor which can be closed in a controlled manner by a flap 176 and is used for direct training operation.
  • a weight bridge 183 and 186 is arranged both on the ball tube 158 and on the supply tube 159, the structure of which is shown in detail in FIG. 8:
  • the ball machine 160 can be provided with a footboard which, in FIGS. 5-7, lies in the areas of the support rollers 163, 164, so that a person is not hindered when the collecting arm is passed through when standing on it.
  • attachment points for the contact switches accommodated in the collecting arm 133 are designated by 197-202, in order to ensure a uniform contact of the collecting arm with the relevant ball receptacles.
  • the collecting arm is guided in a guide rail 193 across a network 133a.
  • the structure of the guide rail 193 results in detail from Fig. 17.
  • the guide rail consists of two profiles 194, 195, which are asymmetrically shaped roof-shaped and form a gap or channel between their shorter, steeply falling parts, in which an impeller 203 of the swivel arm is guided laterally is.
  • Sliding contacts 204, 205 which are electrically insulated from one another and are used to supply current to the drive motors accommodated in the swivel arm, are also attached to the swivel arm.
  • the profiles 194, 195 are made of electrically conductive material - metal - and thus also serve as a busbar.
  • the embodiment shown in Figures 37 and 38 is characterized above all by the fact that a grating as a collecting arm braid strip 196 is used, which extends approximately across the width of the square. On the long sides of the square, the grid mesh strip is held by pulling cables 206, 207, which are endlessly stretched around deflection rollers 208-211.
  • the deflection rollers 208 and 210 are connected to a drive motor, see FIG. 16 - drive motor 212.
  • Switches 213, 214 which are electrically connected to the drive motors are used to set a return movement into a desired end position.
  • a double-sided adhesive tape 193 is used to fix the ball receiving channel, so that the floor is not damaged as is otherwise the case when dowels are attached. This fixation can also be done quickly and easily.

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EP89120769A 1988-11-09 1989-11-09 Dispositif pour le ramassage de balles, en particulier de balles de tennis et/ou pour le planage de court de jeu Expired - Lifetime EP0372249B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120769T ATE84978T1 (de) 1988-11-09 1989-11-09 Einrichtung zum sammeln von baellen, insbesondere tennisbaellen, und/oder zum glaetten des spielbelags.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3838023 1988-11-09
DE3838023 1988-11-09
DE3901555A DE3901555A1 (de) 1988-11-09 1989-01-20 Einrichtung zum sammeln von baellen, insbesondere tennisbaellen, und/oder zum glaetten des spielbelags
DE3901555 1989-01-20

Publications (2)

Publication Number Publication Date
EP0372249A1 true EP0372249A1 (fr) 1990-06-13
EP0372249B1 EP0372249B1 (fr) 1993-01-27

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EP89120769A Expired - Lifetime EP0372249B1 (fr) 1988-11-09 1989-11-09 Dispositif pour le ramassage de balles, en particulier de balles de tennis et/ou pour le planage de court de jeu

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EP (1) EP0372249B1 (fr)
DE (2) DE3901555A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664171A1 (fr) * 1990-07-06 1992-01-10 Couderc Laurent Installation adjointe a un terrain de tennis permettant de recuperer globalement les balles a la fin de chaque echange.
CN110681133A (zh) * 2019-10-31 2020-01-14 北京工业大学 一种用于捡乒乓球机器人的双模态控制方法
CN112337063A (zh) * 2020-11-05 2021-02-09 安徽震雄新材料有限公司 一种网球比赛中自动捡球装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711298A1 (de) * 1997-03-19 1998-09-24 Hans Nopper Verfahren und Vorrichtung zum Sammeln von Gegenständen
ES2378708B1 (es) 2010-01-12 2013-02-25 Foxtenn Bgreen, S.L. Método, sistema y aparato de recogida automática y entrega de elementos esféricos de juego.
CN110685418B (zh) * 2018-07-06 2021-11-23 赵炳九 用于球类项目自动供给的涂层地板倾斜结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430916A1 (de) * 1974-06-27 1976-01-08 Alms Karl Einrichtung zum sammeln von tennisbaellen auf tennisplaetzen
DE2448830B2 (de) * 1974-10-14 1978-11-16 Otto 2053 Schwarzenbek Gansewig Vorrichtung zum horizontalen Ausrichten einer Sandoberfläche
DE3242358A1 (de) * 1981-11-20 1983-05-26 Joseph Adrianus Helmond Groes Ballsammel- und -rueckfuehreinrichtung fuer tennisplaetze
US4456252A (en) * 1981-09-14 1984-06-26 Hartland Albert C Tennis service practice court with recovering and collecting means
US4575081A (en) * 1984-09-24 1986-03-11 Cavanagh Peter A Tennis ball retrieving system
US4606543A (en) * 1981-09-14 1986-08-19 Hartland Albert C Practice tennis court

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430916A1 (de) * 1974-06-27 1976-01-08 Alms Karl Einrichtung zum sammeln von tennisbaellen auf tennisplaetzen
DE2448830B2 (de) * 1974-10-14 1978-11-16 Otto 2053 Schwarzenbek Gansewig Vorrichtung zum horizontalen Ausrichten einer Sandoberfläche
US4456252A (en) * 1981-09-14 1984-06-26 Hartland Albert C Tennis service practice court with recovering and collecting means
US4606543A (en) * 1981-09-14 1986-08-19 Hartland Albert C Practice tennis court
DE3242358A1 (de) * 1981-11-20 1983-05-26 Joseph Adrianus Helmond Groes Ballsammel- und -rueckfuehreinrichtung fuer tennisplaetze
US4575081A (en) * 1984-09-24 1986-03-11 Cavanagh Peter A Tennis ball retrieving system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664171A1 (fr) * 1990-07-06 1992-01-10 Couderc Laurent Installation adjointe a un terrain de tennis permettant de recuperer globalement les balles a la fin de chaque echange.
CN110681133A (zh) * 2019-10-31 2020-01-14 北京工业大学 一种用于捡乒乓球机器人的双模态控制方法
CN112337063A (zh) * 2020-11-05 2021-02-09 安徽震雄新材料有限公司 一种网球比赛中自动捡球装置

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EP0372249B1 (fr) 1993-01-27
DE3901555A1 (de) 1990-05-10

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