EP4116496A1 - Véhicule de nettoyage des plages - Google Patents

Véhicule de nettoyage des plages Download PDF

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Publication number
EP4116496A1
EP4116496A1 EP22174094.7A EP22174094A EP4116496A1 EP 4116496 A1 EP4116496 A1 EP 4116496A1 EP 22174094 A EP22174094 A EP 22174094A EP 4116496 A1 EP4116496 A1 EP 4116496A1
Authority
EP
European Patent Office
Prior art keywords
collection container
cleaning vehicle
weighing
control unit
beach cleaning
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
EP22174094.7A
Other languages
German (de)
English (en)
Other versions
EP4116496B1 (fr
Inventor
Moritz Knupfer
Dennis Ott
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.)
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
Original Assignee
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
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 Kassbohrer Gelandefahrzeug AG, Kaessbohrer Gelaendefahrzeug AG filed Critical Kassbohrer Gelandefahrzeug AG
Publication of EP4116496A1 publication Critical patent/EP4116496A1/fr
Application granted granted Critical
Publication of EP4116496B1 publication Critical patent/EP4116496B1/fr
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Classifications

    • 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
    • E01H12/00—Cleaning beaches or sandboxes

Definitions

  • the invention relates to a beach cleaning vehicle with a chassis and with at least one wheel axle, and with a cleaning system arranged on the chassis, to which at least one collection container for receiving flotsam picked up by the cleaning system is assigned, and with lifting kinematics for moving the collection container between different functional positions relative to the chassis.
  • Such a beach cleaning vehicle is from DE 10 2010 006 278 A1 known.
  • the beach cleaning vehicle has a chassis with a single wheel axle.
  • the beach cleaning vehicle is towed by a tractor.
  • a cleaning system is provided on the chassis, which is provided for collecting contaminated sand from a subsurface, for separating the sand from contaminants and for conveying the contaminants into a collection container.
  • the collection container is arranged on the rear of the chassis by means of lifting kinematics. The lifting kinematics are used to lower and raise the collection container and to be able to tilt it for emptying.
  • the object of the invention is to create a stand cleaning vehicle of the type mentioned at the outset that enables improved driving stability.
  • the lifting kinematics are assigned a position sensor for detecting a weighing position of the collection container, and that a weighing system is provided for weighing the collection container in the weighing position, which can be activated by a control unit as a function of sensor signals from the position sensors, which indicate that the Signal weighing position.
  • the weighing system enables an improved capacity utilization of the collection container, so that the collection container is only emptied when it is sufficiently full. As a result, reliable and economical operation of the beach cleaning vehicle can be achieved.
  • the weighing system prevents the beach cleaning vehicle from being overloaded, which could impair the driving stability of the beach cleaning vehicle. In particular, the risk of the beach cleaning vehicle tipping over due to the excessive weight of the collection container is reduced.
  • the position sensors ensure that the collection container is only weighed when the collection container is in a position that has been raised by the lifting kinematics. This rules out the possibility of falsified weighing results resulting from a collection container that is partially still supported on the ground.
  • the inventive Beach cleaning vehicles can be towed or powered vehicles. If the beach cleaning vehicle according to the invention is towed, it is attached to a towing vehicle such as in particular a tractor. If the beach cleaning vehicle is provided with a traction drive, it forms a self-propelled beach cleaning vehicle. Such a self-propelled beach cleaning vehicle has a driver's cab for a driver of the beach cleaning vehicle, which can be covered to form a driver's cab.
  • the at least one collection container is preferably arranged at the rear of the beach cleaning vehicle.
  • the at least one collection container is arranged relative to the cleaning system in such a way that flotsam picked up by the cleaning system is necessarily conveyed into an opening of the collection container.
  • the flotsam is dirt on the sandy beach of various sizes, such as cigarette butts, beverage cans or bottles, packaging waste, plant waste and the like.
  • the weighing system can have a simple design and can only record a limit value for maximum capacity utilization of the collection container.
  • the weighing system can be complex and, in conjunction with the control unit, can provide exact weight force values for the contents of the at least one collection container.
  • the control unit can also be equipped with just a simple switching function or with complex electronics and a data processing unit.
  • the concept of the weighing system is to be understood in general as a measuring system of at least one physical parameter that allows conclusions to be drawn about differences in the weight of the collection container including its contents.
  • the position sensor system includes an induction sensor that is stationary relative to the chassis and an electrical conductor that is arranged on a movable component of the lifting kinematics and that enters an electromagnetic field of the induction sensor when the collecting container reaches the weighing position.
  • the induction sensor thus sends an electrical signal that can be processed in a switching or control function of the control unit.
  • the electrical conductor arranged on the lifting kinematics is designed as a sword-like metal sheet which is adjustably fastened to the lifting kinematics.
  • the adjustability enables adaptation to the respective stationary position of the induction sensor, so that it is ensured that the at least one collection container is located in the weighing position in a position that is freely supported by the lifting kinematics and is at a distance from the ground.
  • the sword-like metal blade is guided past the induction sensor. as soon as that electromagnetic field of the induction sensor has detected the metal sheet, the control unit is signaled that the weighing position has been reached.
  • the metal sheet is curved in accordance with a movement path of the component of the lifting kinematics. This ensures that the metal sheet is guided past the induction sensor over a sufficiently large section of the movement path to ensure that the induction sensor also detects the metal sheet.
  • the metal sheet is advantageously curved in the shape of a circular arc. A corresponding activation of the induction sensor by the electrical conductor, preferably by the metal sheet, takes place exclusively during a lifting process upwards from the lowered rest position of the collection container in the direction of an upper functional position.
  • the induction sensor As soon as the collection container is lifted above the weighing position by the lifting kinematics, the induction sensor remains continuously activated in order to prevent another weighing process being initiated when the collection container is lowered.
  • the metal sheet consequently has a length that corresponds to a movement path of the associated component of the lifting kinematics from the weighing position to an upper end position.
  • the metal sheet remains in the field area of the induction sensor in a simple manner from the weighing position to the upper end position, so that the induction sensor remains activated.
  • a rectilinear or curved design of the metal sheet corresponding to the movement path of the component what has been said applies accordingly.
  • the weighing system has a pressure sensor system in at least one hydraulic cylinder of the lifting kinematics.
  • the hydraulic pressure in the hydraulic cylinder which is necessary to raise the collection container and its contents or to hold it in a corresponding functional position, changes depending on the weight of the collection container and its contents.
  • the present embodiment uses this. A weight force of the collection container including its contents is thus indirectly detected via the pressure sensor system.
  • control unit is designed to be electronic and to control the lifting kinematics.
  • the control unit can stop further movement of the lifting kinematics for a defined period of time in order to be able to reliably carry out one or more weighing processes.
  • the control unit can calculate a mean value and, depending on this, initiate further control functions.
  • the control unit has a time switch function that can be used to control weighing functions of the weighing system.
  • the timer function can be matched to a necessary measurement period for reliable values from the weighing system. This makes it possible, in particular, to rule out dynamic effects in corresponding pressure measurements, which can occur as a result of post-vibration of the collection container and the lifting kinematics when the lifting kinematics are blocked.
  • the time switch function prevents the collection container from being raised for an adjustable period of time. If the control unit is designed as a simple pressure switch assigned to the pressure sensor system, the corresponding pressure in the hydraulic cylinder is detected during the lifting function of the lifting kinematics that is blocked by the timer function.
  • the collection container can be raised further to the upper end position by the lifting kinematics after the pressure measurement. If the switching point is exceeded, the collection tank is overloaded.
  • the control unit in the form of the pressure switch can be coupled to a signal generator, in particular a display device, which signals the overload.
  • control unit has a memory with at least one pressure setpoint, and the pressure sensors are coupled to the control unit in such a way that actual pressure values from the pressure sensors are compared with the at least one pressure setpoint and, depending on a result of the In comparison, the control unit activates a control function, in particular a control function of the lifting kinematics.
  • This refinement is used in the case of an electronic version of the control unit.
  • a corresponding software program that supports the functions described is assigned to the control unit.
  • a computer program is stored in the control unit, which calculates a weight of the contents of the collection container from the actual pressure values recorded.
  • a corresponding software program uses a corresponding calculation algorithm to relate physical parameters such as pressure differences in the hydraulic cylinder to differences in the weight of the collection container when it is empty or full, in order to calculate a current weight of the contents of the collection container.
  • control unit is assigned a display device which displays a loading status of the collection container.
  • the display device can be designed in different ways. In the case of an optical display device, this can either only have color displays for overloading or underloading or else digital or analog weight displays in kilograms or pounds.
  • An acoustic display device can be implemented by an acoustic signal transmitter.
  • the position sensor system is designed as a path sensor system or angle sensor system assigned to the lifting kinematics.
  • the path of at least one corresponding kinematic component of the lifting kinematics is detected in order to be able to determine the presence of the weighing position of the collection container if the position sensor system is designed as a path sensor system.
  • a pivoting angle of a corresponding kinematic component of the lifting kinematic system between a lowered rest position and the weighing position is detected in a simple manner in order to arrive at the same result.
  • a beach cleaning vehicle 1 according to Figures 1 to 3 has a chassis 3, which is carried by a wheel axle 2, which stands on a ground.
  • the beach cleaning vehicle 1 is towed by a tractor T.
  • the chassis 3 is provided with a suitable coupling.
  • the beach cleaning vehicle 1 has a cleaning system 4, shown only schematically, with which contaminated sand is picked up while the tractor T and the beach cleaning vehicle 1 are driving, cleaned and returned to the ground in a cleaned state.
  • Corresponding flotsam which has led to the contamination of the sand, is conveyed diagonally upwards and backwards via a conveying device of the cleaning system 4 in order to be received in a collection container 5 at a rear area of the beach cleaning vehicle 1 .
  • a drive of the cleaning system 4 is driven via a PTO drive of the tractor T in the illustrated embodiment.
  • the collection container 5 is carried by a lifting mechanism 6 which is supported on the chassis 3 .
  • the lifting kinematics is, as shown in the 2 and 3 can be seen, provided with a parallelogram linkage system.
  • the lifting kinematics 6 is assigned an unspecified tilting device. This tilting device is optional, since the collection container 5 can be emptied, depending on the design, and through an openable flap on the collection container 5, so that the collection container 5 does not have to be tilted.
  • the collection container 5 is in accordance with its rest position 1 up to an upper and tilted end position (see dashed representation in 1 ) by means of the lifting kinematics 6 movable.
  • the lifting kinematics 6 has a lifting drive that is designed hydraulically.
  • the lifting kinematics 6 include two hydraulic cylinders, which are supported on the chassis 3 and extend obliquely upwards and backwards and are coupled to the parallelogram linkage system of the lifting kinematics 6 .
  • the two hydraulic cylinders extend on opposite sides of the chassis 3 and are each positioned above the wheel axle 2, as shown in FIG 2 and 3 is recognizable.
  • the cleaning system 4 has an unspecified, lattice or sieve-shaped conveyor belt, which conveys the flotsam that contributes to the contamination of the sand backwards and upwards, but at the same time allows the cleaned sand to go back down through the sieve or lattice openings onto the ground to fall.
  • the collection container 5 is assigned a weighing system described in more detail below.
  • the collecting container 5 is weighed in a defined weighing position.
  • a position sensor system is assigned to the weighing system, which in the illustrated exemplary embodiment is provided by an induction sensor 8 ( 3 ) is formed.
  • the induction sensor 8 is attached to the chassis 3 of the beach cleaning vehicle 1 and is therefore fixed to the vehicle.
  • an electrical conductor is provided, presently in the form of a metal sheet 10 curved in the shape of an arc of a circle, which is guided past the induction sensor 8 during a lifting movement of the lifting kinematics 6 .
  • the metal sheet 10 is adjustably fastened to a pivotable component 9 of the lifting kinematics 6 .
  • Corresponding adjusting screws 11 and an unspecified slot allow adjustment of the metal sheet 10 relative to the component of the lifting kinematics 6 and thus an adaptation to the spatial conditions on the beach cleaning vehicle 1.
  • the metal blade 10 In a lower resting position of the collecting container 5 , the metal blade 10 is pivoted back so far in the direction of the collecting container 5 that a free end region of the metal blade 10 in the shape of a circular arc is at a distance from the induction sensor 8 .
  • the induction sensor 8 As soon as the lifting kinematics 6 have lifted the collection container 5 far enough for the metal sheet 10 to enter a corresponding electromagnetic field of the induction sensor 8, the induction sensor 8 necessarily emits an electrical signal.
  • the front face end area of the metal sheet 10 is positioned approximately laterally next to the induction sensor 8 . With that shows 3 about a weighing position of the collection container 5.
  • the induction sensor 8 is coupled to a control unit S, which is designed as an electronic control unit S.
  • the weighing system is also connected to the control unit S, which in the exemplary embodiment shown is formed by a respective pressure sensor 7 in the opposite hydraulic cylinders of the lifting kinematics 6 .
  • the pressure sensor 7 is provided at a lower end portion of the hydraulic cylinder. Because the two hydraulic cylinders of the lifting kinematics 6 support the parallelogram linkage system, which is coupled to the collection container 5, a pressure measured in the corresponding hydraulic cylinder is proportional to the weight of the collecting container 5 acting on the hydraulic cylinder, including the corresponding components of the lifting kinematics 6.
  • the length and curvature of the metal sheet 10 is dimensioned in such a way that the metal sheet 10 is moved past the induction sensor 8 up to the upper end position after it has reached the weighing position.
  • the induction sensor 8 remains activated over the entire further stroke of the collection container 5 up to the upper end position and back to the weighing position. This also ensures that when the collection container 5 is lowered from the upper end position and the weighing position is reached from above, the induction sensor 8 is not activated again and therefore cannot emit a signal that would cause the weighing system to be activated.
  • the control unit S has a software program that calculates a weight of the contents of the collection container 5 from corresponding pressure measurements of the at least one hydraulic cylinder.
  • the control unit S is also assigned an electronic memory SP with setpoint pressure values, the setpoint pressure values defining at least one pressure threshold value from which maximum utilization of the collection container 5 occurs.
  • the control unit S compares the actual pressure values transmitted by the pressure sensor system 7 with the pressure setpoint values stored in the memory SP and in particular with the at least one pressure threshold value. Depending on the result of the comparison, the control unit S controls further functions F. These functions F include releasing the lifting kinematics 6 for further lifting up to the upper end position.
  • the other functions F which can be activated by the control unit S depending on the result of the weighing process, also include a display device that can either display a weight of the contents of the collection container 5 and/or generate an acoustic or visual warning if an overload is detected.
  • a further lifting process of the lifting kinematics 6 is blocked when an overload of the collection container 5 is detected, or such a lifting process can be activated manually by an operator despite the displayed overload.
  • the functions F also include the control unit S blocking the lifting kinematics 6 when the weighing position is reached, so that the lifting kinematics 6 and the collection container 5 remain in this weighing position for a specific period of time.
  • This period of time can be defined by a timer element assigned to the control unit S.
  • the weighing system formed by the pressure sensor system 7 carries out a number of pressure measurement processes, from which the control unit S calculates a mean value which is then used as the actual pressure value to be compared with corresponding pressure setpoint values.
  • control unit S can be designed very simply as a pressure switch element.
  • This pressure switching element is assigned to the corresponding hydraulic cylinder of the lifting kinematics 6 .
  • a corresponding signal is sent to a timer element which also belongs to the control unit.
  • the timer blocks further actuation of the lifting kinematics 6 for a certain period of time.
  • the pressure in the hydraulic cylinder of the lifting kinematics 6 is then detected by the pressure switching element.
  • the pressure switching element has a switching point that corresponds to the maximum utilization of the collection container 5 .
  • the collection container can be raised further to the upper end position after the period of time specified by the timer element has elapsed. If the switching point is exceeded, then the collection container 5 is overloaded.
  • a simple acoustic signal transmitter in particular a warning buzzer, is assigned to the pressure switch and is activated when the switching point is exceeded. If a corresponding signal tone of the However, if the signal generator is ignored by the operator, the collection container can still be raised further.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuse-Collection Vehicles (AREA)
EP22174094.7A 2021-07-09 2022-05-18 Véhicule de nettoyage des plages Active EP4116496B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021207262.3A DE102021207262B4 (de) 2021-07-09 2021-07-09 Strandreinigungsfahrzeug

Publications (2)

Publication Number Publication Date
EP4116496A1 true EP4116496A1 (fr) 2023-01-11
EP4116496B1 EP4116496B1 (fr) 2024-07-03

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EP22174094.7A Active EP4116496B1 (fr) 2021-07-09 2022-05-18 Véhicule de nettoyage des plages

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EP (1) EP4116496B1 (fr)
DE (1) DE102021207262B4 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125312A1 (de) * 1991-07-31 1993-02-04 Fac Frank Abels Consult & Tech Verfahren und vorrichtung zum ermitteln des gewichtes des inhaltes eines muellbehaelters sowie dafuer geeigneter muellbehaelter
AT918U1 (de) * 1995-04-04 1996-07-25 Flaga Tech Trade Ges M B H Dynamisches müllwägesystem für müllfahrzeuge
DE102010006278A1 (de) 2010-01-25 2011-07-28 Kässbohrer Geländefahrzeug AG, 88471 Strandpflege- und -reinigungsfahrzeug

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125312A1 (de) * 1991-07-31 1993-02-04 Fac Frank Abels Consult & Tech Verfahren und vorrichtung zum ermitteln des gewichtes des inhaltes eines muellbehaelters sowie dafuer geeigneter muellbehaelter
AT918U1 (de) * 1995-04-04 1996-07-25 Flaga Tech Trade Ges M B H Dynamisches müllwägesystem für müllfahrzeuge
DE102010006278A1 (de) 2010-01-25 2011-07-28 Kässbohrer Geländefahrzeug AG, 88471 Strandpflege- und -reinigungsfahrzeug

Also Published As

Publication number Publication date
EP4116496B1 (fr) 2024-07-03
DE102021207262A1 (de) 2023-01-12
DE102021207262B4 (de) 2023-06-15

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