US20050204717A1 - Device for automatically picking up objects - Google Patents
Device for automatically picking up objects Download PDFInfo
- Publication number
- US20050204717A1 US20050204717A1 US11/077,866 US7786605A US2005204717A1 US 20050204717 A1 US20050204717 A1 US 20050204717A1 US 7786605 A US7786605 A US 7786605A US 2005204717 A1 US2005204717 A1 US 2005204717A1
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- United States
- Prior art keywords
- machine
- station
- golf balls
- paper sheets
- dead leaves
- 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.)
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- 238000011084 recovery Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
-
- 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
- A63B47/021—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting for picking-up automatically, e.g. by apparatus moving over the playing surface
-
- G05D1/244—
-
- G05D1/646—
-
- G05D1/661—
-
- 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
- A63B47/021—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting for picking-up automatically, e.g. by apparatus moving over the playing surface
- A63B2047/022—Autonomous machines which find their own way around the playing surface
-
- G05D2105/14—
-
- G05D2107/24—
-
- G05D2109/10—
-
- G05D2111/36—
Definitions
- Most golf clubs have a practice green, i.e. a lawn surface designed for the training of golf players.
- Special golf ball pick up machines particularly operating on practice greens are already known. They generally operate with a system which comprises spaced flexible disks having the width of a golf ball (see for instance U.S. Pat. No. 5,711,388).
- the disks rotate and are vertically fitted on a horizontal shaft, perpendicular to the forward movement of the machine, the latter being pulled by a self-propelled vehicle or pushed by hand.
- This invention provides a fully automatic system for picking up and returning balls, which needs no labor and allows the players to keep on practicing while balls are picked up.
- the invention provides a system for picking up objects on a delimited surface, consisting of an automatic mobile machine equipped with a motor and a power source, e.g. a rechargeable battery, and provided with an onboard computer.
- the machine carries a mechanical device for gripping and storing objects in a container, a device for emptying said container, a device for detecting the limits of the surface for picking up.
- the system further comprises at least one station for recharging the rechargeable batteries and one station for unloading the picked up objects.
- the system includes a self-contained mobile machine which circulates in a random or pseudo-random manner, over the ball pick-up surface.
- the surface is preferably delimited by a peripheral wire wherein a low frequency signal circulates to be detected by the machine.
- a peripheral wire wherein a low frequency signal circulates to be detected by the machine.
- Other systems for delimiting the operating surface may be used, including physical obstacles, such as those described in patent application no. PCT/BE91/00068, which discloses a robotic lawn mower.
- the pick up machine includes a chassis and driving and guiding members which are known per se, e.g. like those described in patent applications PCT/BE91/00068 and PCT/BE98/00038.
- the mowing system disclosed in the above documents is replaced by a system for picking up balls.
- the system for picking up balls consists, for instance, of a roller formed by a set of parallel flexible disks, which have a suitable profile and are spaced at a distance which is equal or slightly lower than a ball diameter.
- the roller wedges the latter between two adjacent flexible disks which, by the ascending circular movement and the effect of deviation members in the descending path, bring them back into a collecting basket supported by the machine.
- the flexible disk system is preferably fitted on one or more joints, or is anyway flexibly mounted, which allows it to stay in contact with the ground in case of irregularities.
- the collecting basket has an opening on its bottom side, which is controlled by the onboard computer.
- the flexible disk system comprises an articulated shaft which is adapted to be lifted, e.g. by means of a screw jack.
- the computer forces the flexible disk system to be lifted up to avoid a considerable friction with the ground, as well as the degradations of the grass surface and the additional power consumption that may result therefrom.
- the computer for controlling the forward movement of the machine triggers an algorithm which allows to return it toward a fixed location (station).
- the ball filling limit in the collecting basket may be detected, for instance by an IR transceiver system connected to the microcomputer.
- the machine returns to the recharging station by looking for the peripheral wire, i.e. by running, for instance, a straight path in a random manner and after detecting it, by following it at a fixed distance until reaching the terminal or recharging station.
- the latter may advantageously be connected to and integrated with a ball recovery station.
- the machine stops and possibly finds a more accurate position.
- the computer controls the door opening, allowing the basket to be emptied and maintains the machine in a recharging state until batteries are full. After recharging, the machine starts again for a new pick up cycle, and covers the surface of the practice green in a random or quasi-random manner.
- the machine can reach the recharging station by other means, e.g. by analyzing a magnetic field with a possible induction recharge (see for instance U.S. Pat. No. 5,869,910) by radio control or by infrared signal detection.
- the machine of the invention incorporates a system which allows it to be controlled and positioned relative to a fixed station which operates by means of a directional infrared beam, transmitted by the fixed station, the mobile robot being provided with a directional infrared transmission detection system (i.e. detectors) which is connected to the microcomputer incorporated in the robot, said robot being displaced over an operating surface in a substantially random manner, and said microcomputer comprising an algorithm for controlling the return to the fixed station by displacing the robot toward the direction of transmission of said infrared beam.
- a directional infrared transmission detection system i.e. detectors
- the infrared beam may be a narrow directional beam and the detection system may be advantageously situated on the chassis at the center of rotation of the robot, turned toward the moving direction of the robot, the accurate positioning in the fixed station being obtained by rotating the machine about a vertical axis according to an algorithm based on the detection of the narrow beam, e.g. through 2 to 12°.
- This system may operate with at least two beams having substantially different directions, transmitted from or near the fixed station, the less directional beam/s being used to get closer to the fixed station, while the more directional beam/s are used for the final accurate robot positioning step, relative to said fixed station.
- the machine of the invention may operate while balls are being driven.
- the machine has a lower profile, of little significance as compared with classic pulled or towing machines, and the collision with a ball is thereby reduced.
- the shell of the machine e.g. made of plastic, possibly covered with foam, is conceived in such a manner as to be able to support the impact of golf balls without being damaged thereby.
- the surface be totally clear of balls, e.g. to mow the lawn in a conventional manner.
- the recovery on a random or quasi-random path system is no longer desirable.
- a systematic path system may be used here to cover the whole surface in an optimized time.
- the machine may follow the peripheral wire at a certain distance from the latter. Thanks to a constant measurement of the domain of a peripheral wire for delimiting the working surface such as the one described in patents EP 0550 472 B1 and 0 744 093 B1, the machine constantly determines its distance from the wire and may increase the latter after each run. Balls will be recovered in parallel bands from the periphery inwards.
- the machine is positioned along the peripheral wire.
- the onboard computer periodically measures, in a well-known manner, the width of the signal transmitted by the peripheral wire. This measurement allows the onboard computer to determine its distance from the wire and to control the direction of the machine in order to maintain a fixed distance from the wire.
- the latter may determine with a reasonable accuracy the moment in which a turn has been completed by the mower along the wire. Then, the mower can move away from the wire to a distance equal to the cutting width in such a manner as to be able to perform a new loop at a distance from the wire which is increased by the cutting width. Hence, the operation may be repeated by increasing every time the distance between the mower and the peripheral wire, ideally until reaching the center of the area to be mowed.
- the length of the above wire shall not be necessarily entered into the computer.
- said length may be determined by the onboard computer by integrating the speed differences between the driving wheels of the machine (changes of direction) until the total change reaches or exceeds 360°.
- the system may also advantageously integrate a magnetic or inertial compass.
- FIG. 1 is a bottom view of the machine of the invention.
- FIG. 2 is a side sectional view of the machine as shown in FIG. 1 .
- FIG. 3 shows the path followed by the machine.
- FIG. 4 shows an example of electric recharging and golf ball unloading station.
- FIG. 5 shows a recharging system in detail.
- FIG. 1 is a bottom view of the machine of the invention. It shows the flexible disks 1 , the balls which are wedged between the disks, the transverse disk rotation shaft 3 , which is preferably linked to the chassis in a non rigid manner, the case comprising the control electronics and the onboard computer 4 , the batteries 5 , the motors for the wheels 6 , the idle rollers 7 mounted at the front part, the peripheral wire detector 8 , the optical basket fill detector 30 , 31 , consisting of an infrared transmitter and receiver.
- FIG. 2 is a sectional side view of the machine or FIG. 1 .
- the ball receiving basket 9 is visible herein, provided at its bottom wall with an opening door which pivots about the axis 11 and whose opening is controlled by the screw jack 12 .
- the fingers 13 situated on the circular path of the wedged balls extract the balls out of the disks to let them fall into the basket 9 .
- FIG. 3 shows an example of the machine path. This path is typically of the random type.
- the machine looks for the peripheral wire 15 and follows it until it detects the station 17 .
- FIG. 4 shows one embodiment wherein the station is raised so that a container 18 designed to collect the balls may be introduced thereunder.
- the ramps 19 allow the machine to reach the platform 20 in which the recharging station is situated.
- the platform 20 is fitted with a grid 21 through which the balls released from the basket opening 9 may reach the container or the ball return duct.
- FIG. 5 shows the machine connected to the recharging station. While following the peripheral wire, and at the station, two brushes 23 at the sides of the machine come in contact with two guiding rails 24 mounted on each flank of the machine. By providing rails on the two flanks allows the machine to reach the station from either direction.
- the brushes 23 are mounted on the station via the arm 25 fitted to the case in a flexible manner in 26 , which allows the arm to pivot when the machine contacts it.
- the onboard computer constantly checks the tension on the brushes 23 . Whenever a tension is detected, the presence of rails, hence of the station, is acknowledged, and this allows the computer to stop the machine.
- the ball unloading system may be advantageously connected to an automatic ball return system in the immediate proximity of the players.
- This system may include slightly inclined ducts, which convey the balls by gravity.
- a recharging station which is situated appreciably higher than the ball driving site, and accessible through ramps, will be particularly suitable to this end.
- a receiving tub at ground level or a bowl in the ground may be provided, the tub or the bowl being equipped with a ball lifting system, e.g. a feed screw, a band conveyor, or the like, to bring balls into the containers or the return ducts.
- a ball lifting system e.g. a feed screw, a band conveyor, or the like
- system described herein may be adapted to collect objects other than golf balls. Particularly, by modifying the system, these objects might be rubbish or vegetables.
- the mechanical gripping device may consist of a rotary brush provided with spikes, radially arranged around the shaft of said brush.
- the spikes are adapted to pierce objects situated on said surface, and said objects are dragged along into a circular movement, released from the spikes by fixed elements which are engaged between the spikes, and deviate the objects toward a storage device.
- the objects may be, dead leaves or pieces of paper.
- system of the invention may be connected to a mowing system, possibly carried by the same chassis.
- An automatic mowing device as described in the above PCT applications may be developed separately, while using the same peripheral wire and the same discharging station.
- the robot motor may be associated to a power source other than a rechargeable battery, for instance a fuel cell, or a thermal or hybrid motor.
- the system of this invention would not include a driving means of its own, but would be towed by a mobile mowing robot whereto it would possibly be linked.
Abstract
A system for picking up golf balls over a golf practice green consists of an automatic mobile machine equipped with a motor and a power source, for example a rechargeable battery, and provided with an onboard computer. The machine carries a mechanical device for gripping and storing the golf balls in a container, a device for emptying such container, a device for detecting the limits of the surface for picking up. The system further comprise at least a station for discharging the balls picked up and preferably a station for recharging the rechargeable batteries. Both stations are advantageously integrated to each other.
Description
- Most golf clubs have a practice green, i.e. a lawn surface designed for the training of golf players.
- Golfers practice their “drives” from a reserved space and hit balls to distances which are typically of 50 to 200 meters. These balls have to be regularly picked up and returned to the driving site.
- Special golf ball pick up machines, particularly operating on practice greens are already known. They generally operate with a system which comprises spaced flexible disks having the width of a golf ball (see for instance U.S. Pat. No. 5,711,388). The disks rotate and are vertically fitted on a horizontal shaft, perpendicular to the forward movement of the machine, the latter being pulled by a self-propelled vehicle or pushed by hand.
- In order to prevent an excessive number of balls from being in circulation, the picking up action has to be performed regularly, which involves a considerable labor cost and a regular disturbance for golf players.
- Hence, there exists an actual need for a system that picks up balls in a fully automatic manner, and that can operate without interrupting the players and with no risk of accidents due to strong drives.
- This invention provides a fully automatic system for picking up and returning balls, which needs no labor and allows the players to keep on practicing while balls are picked up.
- In a more general manner, the invention provides a system for picking up objects on a delimited surface, consisting of an automatic mobile machine equipped with a motor and a power source, e.g. a rechargeable battery, and provided with an onboard computer. The machine carries a mechanical device for gripping and storing objects in a container, a device for emptying said container, a device for detecting the limits of the surface for picking up. The system further comprises at least one station for recharging the rechargeable batteries and one station for unloading the picked up objects.
- According to an aspect of the invention, the system includes a self-contained mobile machine which circulates in a random or pseudo-random manner, over the ball pick-up surface.
- In a well-known manner, the surface is preferably delimited by a peripheral wire wherein a low frequency signal circulates to be detected by the machine. Other systems for delimiting the operating surface may be used, including physical obstacles, such as those described in patent application no. PCT/BE91/00068, which discloses a robotic lawn mower.
- The pick up machine includes a chassis and driving and guiding members which are known per se, e.g. like those described in patent applications PCT/BE91/00068 and PCT/BE98/00038.
- The mowing system disclosed in the above documents is replaced by a system for picking up balls. The system for picking up balls consists, for instance, of a roller formed by a set of parallel flexible disks, which have a suitable profile and are spaced at a distance which is equal or slightly lower than a ball diameter. As the machine advances, the flexible disk system which rests on the ground is passively driven into rotation and rolls over the balls it finds in its way. The roller wedges the latter between two adjacent flexible disks which, by the ascending circular movement and the effect of deviation members in the descending path, bring them back into a collecting basket supported by the machine. The flexible disk system is preferably fitted on one or more joints, or is anyway flexibly mounted, which allows it to stay in contact with the ground in case of irregularities. The collecting basket has an opening on its bottom side, which is controlled by the onboard computer.
- In accordance with one embodiment, the flexible disk system comprises an articulated shaft which is adapted to be lifted, e.g. by means of a screw jack. In case of a change of direction the computer forces the flexible disk system to be lifted up to avoid a considerable friction with the ground, as well as the degradations of the grass surface and the additional power consumption that may result therefrom.
- When the basket is full or the batteries of the machine have to be recharged, the computer for controlling the forward movement of the machine triggers an algorithm which allows to return it toward a fixed location (station). The ball filling limit in the collecting basket may be detected, for instance by an IR transceiver system connected to the microcomputer.
- According to one embodiment, the machine returns to the recharging station by looking for the peripheral wire, i.e. by running, for instance, a straight path in a random manner and after detecting it, by following it at a fixed distance until reaching the terminal or recharging station. The latter may advantageously be connected to and integrated with a ball recovery station.
- In fact, according to a preferred embodiment, once the terminal has been detected, e.g. by contact, the machine stops and possibly finds a more accurate position. The computer controls the door opening, allowing the basket to be emptied and maintains the machine in a recharging state until batteries are full. After recharging, the machine starts again for a new pick up cycle, and covers the surface of the practice green in a random or quasi-random manner.
- In accordance with other embodiments, currently less preferred, the machine can reach the recharging station by other means, e.g. by analyzing a magnetic field with a possible induction recharge (see for instance U.S. Pat. No. 5,869,910) by radio control or by infrared signal detection.
- In the latter case, the machine of the invention incorporates a system which allows it to be controlled and positioned relative to a fixed station which operates by means of a directional infrared beam, transmitted by the fixed station, the mobile robot being provided with a directional infrared transmission detection system (i.e. detectors) which is connected to the microcomputer incorporated in the robot, said robot being displaced over an operating surface in a substantially random manner, and said microcomputer comprising an algorithm for controlling the return to the fixed station by displacing the robot toward the direction of transmission of said infrared beam. The infrared beam may be a narrow directional beam and the detection system may be advantageously situated on the chassis at the center of rotation of the robot, turned toward the moving direction of the robot, the accurate positioning in the fixed station being obtained by rotating the machine about a vertical axis according to an algorithm based on the detection of the narrow beam, e.g. through 2 to 12°.
- This system may operate with at least two beams having substantially different directions, transmitted from or near the fixed station, the less directional beam/s being used to get closer to the fixed station, while the more directional beam/s are used for the final accurate robot positioning step, relative to said fixed station.
- The machine of the invention may operate while balls are being driven. The machine has a lower profile, of little significance as compared with classic pulled or towing machines, and the collision with a ball is thereby reduced. Moreover, the shell of the machine, e.g. made of plastic, possibly covered with foam, is conceived in such a manner as to be able to support the impact of golf balls without being damaged thereby.
- At certain times, it might be desirable that the surface be totally clear of balls, e.g. to mow the lawn in a conventional manner. In this case, the recovery on a random or quasi-random path system is no longer desirable. A systematic path system may be used here to cover the whole surface in an optimized time.
- For example, the machine may follow the peripheral wire at a certain distance from the latter. Thanks to a constant measurement of the domain of a peripheral wire for delimiting the working surface such as the one described in patents EP 0550 472 B1 and 0 744 093 B1, the machine constantly determines its distance from the wire and may increase the latter after each run. Balls will be recovered in parallel bands from the periphery inwards.
- More precisely, according to the latter method, at first the machine is positioned along the peripheral wire. Once the machine is started, the onboard computer periodically measures, in a well-known manner, the width of the signal transmitted by the peripheral wire. This measurement allows the onboard computer to determine its distance from the wire and to control the direction of the machine in order to maintain a fixed distance from the wire.
- If the length of the wire has been first entered into the memory of the onboard computer, the latter may determine with a reasonable accuracy the moment in which a turn has been completed by the mower along the wire. Then, the mower can move away from the wire to a distance equal to the cutting width in such a manner as to be able to perform a new loop at a distance from the wire which is increased by the cutting width. Hence, the operation may be repeated by increasing every time the distance between the mower and the peripheral wire, ideally until reaching the center of the area to be mowed.
- According to a variant embodiment, the length of the above wire shall not be necessarily entered into the computer. In fact, said length may be determined by the onboard computer by integrating the speed differences between the driving wheels of the machine (changes of direction) until the total change reaches or exceeds 360°. To this end, the system may also advantageously integrate a magnetic or inertial compass.
- The invention will be further described with reference to the following embodiment, and referring to the drawings annexed by way of non-limiting examples.
-
FIG. 1 is a bottom view of the machine of the invention. -
FIG. 2 is a side sectional view of the machine as shown inFIG. 1 . -
FIG. 3 shows the path followed by the machine. -
FIG. 4 shows an example of electric recharging and golf ball unloading station. -
FIG. 5 shows a recharging system in detail. -
FIG. 1 is a bottom view of the machine of the invention. It shows theflexible disks 1, the balls which are wedged between the disks, the transversedisk rotation shaft 3, which is preferably linked to the chassis in a non rigid manner, the case comprising the control electronics and theonboard computer 4, thebatteries 5, the motors for thewheels 6, theidle rollers 7 mounted at the front part, theperipheral wire detector 8, the opticalbasket fill detector -
FIG. 2 is a sectional side view of the machine orFIG. 1 . Theball receiving basket 9 is visible herein, provided at its bottom wall with an opening door which pivots about theaxis 11 and whose opening is controlled by thescrew jack 12. Thefingers 13 situated on the circular path of the wedged balls extract the balls out of the disks to let them fall into thebasket 9. -
FIG. 3 shows an example of the machine path. This path is typically of the random type. When the machine is filled up with balls, and/or when the battery is sufficiently empty, the machine looks for theperipheral wire 15 and follows it until it detects thestation 17. -
FIG. 4 shows one embodiment wherein the station is raised so that acontainer 18 designed to collect the balls may be introduced thereunder. Theramps 19 allow the machine to reach theplatform 20 in which the recharging station is situated. Theplatform 20 is fitted with agrid 21 through which the balls released from thebasket opening 9 may reach the container or the ball return duct. -
FIG. 5 shows the machine connected to the recharging station. While following the peripheral wire, and at the station, twobrushes 23 at the sides of the machine come in contact with two guidingrails 24 mounted on each flank of the machine. By providing rails on the two flanks allows the machine to reach the station from either direction. Thebrushes 23 are mounted on the station via thearm 25 fitted to the case in a flexible manner in 26, which allows the arm to pivot when the machine contacts it. The onboard computer constantly checks the tension on thebrushes 23. Whenever a tension is detected, the presence of rails, hence of the station, is acknowledged, and this allows the computer to stop the machine. - The ball unloading system may be advantageously connected to an automatic ball return system in the immediate proximity of the players. This system may include slightly inclined ducts, which convey the balls by gravity. As mentioned above, a recharging station which is situated appreciably higher than the ball driving site, and accessible through ramps, will be particularly suitable to this end.
- Nevertheless, a receiving tub at ground level or a bowl in the ground may be provided, the tub or the bowl being equipped with a ball lifting system, e.g. a feed screw, a band conveyor, or the like, to bring balls into the containers or the return ducts.
- It shall be also appreciated that the system described herein may be adapted to collect objects other than golf balls. Particularly, by modifying the system, these objects might be rubbish or vegetables.
- Hence, the mechanical gripping device may consist of a rotary brush provided with spikes, radially arranged around the shaft of said brush. The spikes are adapted to pierce objects situated on said surface, and said objects are dragged along into a circular movement, released from the spikes by fixed elements which are engaged between the spikes, and deviate the objects toward a storage device. The objects may be, dead leaves or pieces of paper.
- Also, it shall be understood that the system of the invention may be connected to a mowing system, possibly carried by the same chassis. An automatic mowing device as described in the above PCT applications may be developed separately, while using the same peripheral wire and the same discharging station.
- It shall be further understood that the robot motor may be associated to a power source other than a rechargeable battery, for instance a fuel cell, or a thermal or hybrid motor.
- According to another variant, the system of this invention would not include a driving means of its own, but would be towed by a mobile mowing robot whereto it would possibly be linked.
Claims (13)
1. A system for picking up and collecting golf balls, dead leaves and paper sheets in a golf practice without interrupting the players comprising an automatic mobile machine provided with an on-board computer and a power source, said machine having mechanical means to pick up and store said golf balls, dead leaves and paper sheets, the machine being programmed to move in a substantially random way on said golf practice to pick up and store said golf balls, dead leaves and paper sheets in a container and to return, and automatically unload, by gravity action, the golf balls, at a station, said station being provided with recharging means for said power source.
2. The system of claim 1 , wherein said golf practice is provided with a wire extending at the periphery of said golf practice and being detectable by a detector carried by the machine.
3. The system of claim 2 , wherein the automatic mobile machine reaches the station by following the golf practice limiting wire, the station being situated along said wire or on an extension thereof.
4. The system of claim 1 , wherein the mechanical means to pick up the golf balls, dead leaves and paper sheets is a driven rotating flexible disc system.
5. The system as claimed in claim 1 , wherein a recharging means and unloading means for the golf balls, dead leaves and paper sheets are coupled.
6. The system as claimed in claim 1 , wherein the machine has a plurality of spaced-apart flexible discs connected to a transverse rotation shaft such that the golf balls, dead leaves and paper sheets become wedged between adjacent flexible discs,
a plurality of fingers disposed transversely on the machine between the flexible discs to extract the golf balls, dead leave and paper sheets out of the discs wherein the golf balls, dead leaves and paper sheets fall into the container.
7. A system as claimed in claim 1 , wherein the station has a means to transmit at least one directional beam, the machine having a receiver to receive the at least one directional beam such that the machine may be controlled to direct the machine to the station.
8. A system as claimed in claim 1 , wherein the station comprises a recovery bowl for the golf balls, dead leaves and paper sheets equipped with a lifting system and connected to a duct which is adapted to convey the golf balls, dead leaves and paper sheets at least partly by gravity from the mobile machine.
9. The system as claimed in claim 1 , wherein the station is raised, the station having ramps connected to an elevated platform, the mobile machine being directed onto the platform, a recovery bowl being disposed under the platform wherein the container in the mobile machine is emptied into the recovery bowl.
10. The system as claimed in claim 1 , wherein the container for the golf balls, dead leaves and paper sheets has a door, the door being opened by the computer to empty the container.
11. The system as claimed in claim 1 , further comprising the station having means to recharge the power source.
12. The system as claimed in claim 1 , wherein the station has at least one fixed rail which is adapted to come in contact with one of two side brushes carried by the automatic mobile machine, and side brushes detecting the presence of the fixed rail.
13. The system as claimed in claim 1 , further having a detector, the detector sensing when the power source is in need of recharging and when the container is full such that the detector directs the machine to the station.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/077,866 US20050204717A1 (en) | 1999-06-17 | 2005-03-11 | Device for automatically picking up objects |
US11/707,707 US20070183873A1 (en) | 1999-06-17 | 2007-02-16 | Device for automatically picking up objects |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9900422 | 1999-06-17 | ||
BE9900422 | 1999-06-17 | ||
PCT/BE2000/000064 WO2000078410A1 (en) | 1999-06-17 | 2000-06-16 | Device for automatically picking up objects |
US3074501A | 2001-12-14 | 2001-12-14 | |
US11/077,866 US20050204717A1 (en) | 1999-06-17 | 2005-03-11 | Device for automatically picking up objects |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BE2000/000064 Division WO2000078410A1 (en) | 1999-06-17 | 2000-06-16 | Device for automatically picking up objects |
US3074501A Division | 1999-06-17 | 2001-12-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/707,707 Continuation US20070183873A1 (en) | 1999-06-17 | 2007-02-16 | Device for automatically picking up objects |
Publications (1)
Publication Number | Publication Date |
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US20050204717A1 true US20050204717A1 (en) | 2005-09-22 |
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EP1191982B1 (en) | 2004-06-02 |
US20070183873A1 (en) | 2007-08-09 |
EP1191982A1 (en) | 2002-04-03 |
AU5376400A (en) | 2001-01-09 |
DE60011266T2 (en) | 2005-01-20 |
ES2222906T3 (en) | 2005-02-16 |
DE60011266D1 (en) | 2004-07-08 |
WO2000078410A1 (en) | 2000-12-28 |
ATE268196T1 (en) | 2004-06-15 |
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