EP0541135B1 - Installation for emptying containers, particularly refuse containers - Google Patents

Installation for emptying containers, particularly refuse containers Download PDF

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Publication number
EP0541135B1
EP0541135B1 EP92121350A EP92121350A EP0541135B1 EP 0541135 B1 EP0541135 B1 EP 0541135B1 EP 92121350 A EP92121350 A EP 92121350A EP 92121350 A EP92121350 A EP 92121350A EP 0541135 B1 EP0541135 B1 EP 0541135B1
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EP
European Patent Office
Prior art keywords
lifting
tipping
valve
switch element
pressure medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92121350A
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German (de)
French (fr)
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EP0541135A1 (en
Inventor
Renate Würtz
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.)
OTTO LIFT-SYSTEME GmbH
Otto Lift Systeme GmbH
Original Assignee
OTTO LIFT-SYSTEME GmbH
Otto Lift Systeme GmbH
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Publication date
Application filed by OTTO LIFT-SYSTEME GmbH, Otto Lift Systeme GmbH filed Critical OTTO LIFT-SYSTEME GmbH
Publication of EP0541135A1 publication Critical patent/EP0541135A1/en
Application granted granted Critical
Publication of EP0541135B1 publication Critical patent/EP0541135B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/02—Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F3/04—Linkages, pivoted arms, or pivoted carriers for raising and subsequently tipping receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/02—Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F2003/022—Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto the discharging means comprising a device for determining the weight of the content of refuse receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/02—Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F2003/025—Constructional features relating to actuating means for lifting or tipping containers
    • B65F2003/0256—Means for vibrating or shaking the containers for facilitating emptying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/001—Vehicles particularly adapted for collecting refuse for segregated refuse collecting, e.g. vehicles with several compartments

Definitions

  • the invention relates to a device for emptying containers, in particular garbage containers, with at least one lifting and tipping device which is provided with a lifting and tipping frame for receiving the container to be emptied, with a pressure medium power circuit for actuating the lifting and tipping frame, with an electrical control device for Activate the pressure medium power circuit and with an actuating device for activating the electrical control device.
  • a device is known (WO 85/03689) which is provided with an electrical control circuit which contains a switch actuated by a container placed on the lifting and tilting device for switching on the control sequence and a time switch which determines the time valve control for the movement sequence.
  • a multi-way valve arranged in the pressure medium power circuit is moved into its OPEN position, so that the pressure medium can flow to the lifting or pivoting cylinders causing the movement of the lifting / tilting frame.
  • a bypass line leads from the multi-way valve via a return valve to a pressure medium reservoir, which means that the lifting and tipping device can be started automatically by the container attached to the lifting and tipping device. If the garbage container is not correctly positioned on the lifting and tipping device, the device cannot be set in motion.
  • the electrical control circuit provided for the temporal valve control can be known in this
  • the device can also be designed such that when the container seated on the lifting and tipping device is released by the switch starting the lifting and tipping device, the lifting and tipping device is returned to its starting position. This ensures that the stroke-tilt movement is not continued if the container should have lost its contact seat on the switch.
  • the switch is used to automatically start the emptying process.
  • the emptying process is interrupted as soon as the waste container is no longer on the switch.
  • the likelihood that a correctly placed container should lose its seat during the emptying process is arbitrarily improbable and, for example, only conceivable if structural members break. If something like this should occur, this known emergency shutdown, which interrupts the lift-tilt process, would not be very helpful. In such an accident, the container would fall back in an uncontrolled manner regardless of the retraction of the lifting and tipping frame.
  • the emptying process can only be started in any case when the container has taken its proper seat on the lifting and tipping device, since it can only contact the switch on the lifting and tipping device in this position.
  • the presence of a switch which is automatically actuated by a container hanging from the lifting / tilting device in accordance with regulations is known from DE-OS 27 21 059.
  • the switch there serves to check that the waste container is seated correctly in such a way that the switch is turned on by the container and a control lamp lights up. If the indicator light does not come on, the container is not properly seated on the lifting and tipping device.
  • An operator who initiates and monitors the garbage process then has the option of interrupting the further lifting and tilting process by actuating corresponding actuating members.
  • the object of the invention is to provide an improved, safe device for emptying containers, in particular refuse containers.
  • the solution of this invention is given by the features of the main claim.
  • the device according to the invention for emptying garbage containers is accordingly distinguished by improved automation of the actual lifting and tipping process and thus of the emptying process.
  • This is achieved in that in the bypass line there is a second shut-off valve designed as a multi-way valve and a cylinder which can be acted on from both sides by this line, in that the lifting cylinder is connected to a device counting the movements of its piston, whereby by switching the second shut-off valve this movement is reversible in its respective direction that a Switching element is present in the line leading to the lift-tilt cylinders that this switch element is connected to the second shut-off valve in such a way that when a predetermined line pressure is reached, at which the lift-tilt cylinders are in their maximum lift-tilt position, this second shut-off valve its shut-off position is switchable and that the counting device is connected to the control device for the first shut-off valve short-circuite
  • a second piston is present in the lifting cylinder, which is displaceable by the first piston and is so effective outside the lifting cylinder as a contact for an electrical counter that the latter continues to count with each contact of the second piston with the counter.
  • the device according to the invention is designed as a sequential circuit; This means that during the upward movement of the lifting and tilting frame, the latter is first raised by a first cylinder unit and then pivoted by a second cylinder unit.
  • a branching valve is present between the first shut-off valve and the lift-tilt cylinders, with which the pressure medium can be controlled either to a first cylinder unit causing the lifting movement or to a second cylinder unit causing the pivoting movement; there is also a line between the first and the second cylinder unit with a pressure relief valve, the pressure relief valve being surrounded by a bypass line with a check valve and the check valve blocking the bypass line in the direction of the second cylinder unit.
  • the branch valve is advantageously switched by the lift-tilt device itself. It is thereby achieved that the branching valve is changed accordingly depending on the stroke-tilt movement.
  • a structurally simple way to switch the branch valve by the lifting and tilting device is characterized in that an actuating member is provided on the lifting and tilting frame in such a way that, after overcoming a predetermined stroke, the branching valve blocks and closes the pressure medium flow to the cylinder unit causing the lifting movement releases the other cylinder unit, the actuator holding the branch valve in this position as long as the actual stroke of the lifting and tilting frame does not fall below the predetermined stroke.
  • the automatically operating device for emptying containers in particular refuse containers
  • a switching element that is constantly present in the working area of the lifting and tilting device, and to connect this switching element to the shut-off valve present in the pressure medium power circuit, that when the switching element is contacted by a stranger, the shut-off valve is moved into its position blocking the line flow of the pressure medium.
  • the further workflow is automatically interrupted, so that people who enter the work area or are present there due to the movement of the lifting and tilting frame cannot be injured.
  • a first switching element is advantageously provided, which is so extensive that it largely covers the lifting and tipping frame on the side.
  • a second element can be present, which in turn is designed so that it largely covers the lifting and tilting frame which is pivoted upwards as much as possible from below.
  • a three-way valve 14 is acted upon by a pump P via a line 12 with a pressure medium.
  • a pressure medium line 16 leads from the three-way valve 14 to a two-way valve 18.
  • the pressure medium can be directed from this two-way valve 18 via a further line 20 to a lifting and tilting cylinder 22.
  • Via a further line 24 the pressure medium is introduced from the two-way valve 18 at point 28 into a line 26 branching off line 20. From there it flows in line 26 to a branching point 38, where it opens into a left swivel cylinder 32 in a left line 30 and into a right swivel cylinder 36 in a right line 34.
  • a switch 40 is connected, which is switched from its position a to its position b at a certain line pressure.
  • a line 42 branches off from line 16 to a lifting cylinder 44.
  • a piston 46 is movably mounted in this lifting cylinder 44. If pressure medium is introduced into the lifting cylinder 44 through the line 42, the piston 46 is displaced to the right in FIG. 1.
  • a further line 48 leads from the right end of the lifting cylinder 44 to the pressure medium supply tank T.
  • a two-way valve 50 is seated in this line 48.
  • a line 52 leads back to the three-way valve 14 between the two-way valve 50 and the tank T.
  • the two-way valve 50 is connected to the line 12 via a further line 53.
  • This line 53 leads through the same in a position a of the two-way valve 50 and opens into a line 54, which in turn opens into a further three-way valve 56.
  • a return line 58 also leads from this three-way valve 56 to the pressure medium supply tank T back.
  • Another line 60 leads from this three-way valve 56 to line 16.
  • Another pressure relief valve 68 is provided in a line 69 which connects line 53 to line 48.
  • the three-way valve 14 is adjusted into its different positions a, b, c by means of a control device 70.
  • a hand switch 72 is connected to this control device 70. By actuating this switch 72, the three-way valve 14 is switched to its position c.
  • On the other three-way valve 56 which is adjusted via a manually operated actuating lever 74, a locking member 76 is present, which leaves the three-way valve 56 in its locked position b and prevents the valve 56 could be adjusted by means of the actuating lever 74. If the blocking element 76 is moved upward from its blocking position - in FIG. 1 - it comes into contact with two contacts 80. An electrical current then flows in the line 82 containing the contacts 80 to the control device 70, which causes that the three-way valve 14 cannot be adjusted from its locked position b via the electrical line 84, not even by actuating the switch 72.
  • a counter Z is also connected to the control device 70 via an electrical line 86.
  • the counter Z is in turn connected to two contacts 88. These contacts 88 can be contacted by a piston 90, which protrudes into the lifting cylinder 44 with its end facing away from the contacts 88.
  • This piston 90 can be displaced by the piston 46 of the lifting cylinder 44 to the right and thus into a position contacting the contacts 88. Every time the piston 90 bears against the contacts 88, an electrical contact flows to the counter Z, whereby the latter is adjusted by one.
  • the counting position of this counter Z is registered in the control device 70 and, when a predetermined value is reached, the three-way valve 14 is adjusted into its position a which releases the reflux.
  • a switch 92 is also connected to the control device 70 and is switched via a lever 93.
  • This lever 93 is brought into its two switching positions by the lifting and tilting frame of the lifting and tilting device.
  • the switch 92 is connected to a contact member 94 which is fixed to the lifting and tipping frame (FIGS. 2, 3).
  • Another contact member 96 is adjacent to the contact member 94 and is fastened to a cantilever member 98.
  • the cantilever 98 is cantilevered on a balance beam 100.
  • This balance beam 100 is pivotally mounted about an axis 102.
  • the cover edge 104 of a waste container 106 rests on the balance beam 100 from above, as will be described in more detail in FIGS. 2 and 3.
  • the two-way valve 18 present in the line 16 is adjusted into its two positions a or b by corresponding actuation of the lever 110.
  • the two-way valve In the lowered position of the lifting and tipping frame, the two-way valve is in its position a (FIG. 1).
  • the pressure medium flows through in this position the lines 16 and 20 to the lifting cylinder 22, with the result that the lifting cylinder 22 moves the lifting and tipping frame upwards.
  • the pressure medium flows through line 28 to the swivel cylinders 32, 36.
  • the pressure medium lines to the cylinders 22, 32, 36 are designed such that first the lifting cylinder 22 and then the two swivel cylinders 32, 36 are adjusted.
  • the switch 40 When a certain pressure in the line 30, 34 is exceeded, the switch 40 is moved from its position a to its position b.
  • the piston 46 present in the lifting cylinder 44 is consequently adjusted to the left in FIG. 1.
  • This causes a pressure drop in the line 30, 34, whereby the pivot cylinders 32, 36 are set back to a certain extent.
  • the pressure drop also causes the switch 40 to be returned to its position a shown in FIG. 1, which in turn causes the two-way valve 50 to be returned to its position a shown in FIG. 1.
  • the container 106 can be set in a shaking motion by repeating these method steps several times.
  • the number of shaking movements is determined by the counter Z.
  • the counter Z connected to the control device 70 brings about a certain number of vibrations, that the opened three-way valve 14 is returned to its reflux position a.
  • the pressure medium When flowing back, the pressure medium first flows from lines 30, 34 into line 24 and from there via line 16 through the opened three-way valve 14 back into line 52 and from there via line 69 into tank T. Das Two-way valve 18 is in its position b, in which the line 20 to the lifting cylinder 22 is shut off. The pressure medium can therefore only flow out of the lifting cylinder 22 through the pressure-limiting valve 62 into the line 24 when the pressure in the lines 30, 34 has dropped below the limit value of the pressure-limiting valve 62. This means that first the swivel cylinders 32, 36 and then the lifting cylinder 22 move back into their respective starting positions.
  • the lifting and tilting frame is present so far lowered that it adjusts the lever 110 of the two-way valve 18 and thus returns the two-way valve to its position a.
  • the pressure medium can now flow back into the tank T from the line 20.
  • the lifting and tilting device can be actuated “by hand” using the actuating lever 74 in a known manner.
  • the counter Z is not activated with this type of actuation of the lifting and tilting frame and is therefore not used.
  • the contacts 94, 96 on the switch 92 function in the following manner.
  • the cover edge 104 of the container 106 comes into contact with the top of the balance beam 100 from above.
  • the balance beam 100 is pressed downward against the force of a spring 112 and parallel to the cover edge 104 aligned.
  • the cantilever 98 projecting downward from the balance beam 100 is also adjusted accordingly. If the container 106 is its predetermined Has taken position on the receiving bar 108, the contact member 96 is exactly adjacent to the contact member 94, which is present on the lifting and tipping frame.
  • the balance beam 100 is generally not aligned parallel to the receiving bar 108.
  • the direction W normal to it which also reflects the direction of the tensioning force of the spring 112 is not aligned in space parallel to the stroke direction H of the lift / tilt frame 111.
  • the lifting and tilting frame 111 is aligned in the same way as the garbage truck to which it is attached. Regardless of this, there is a direction B with which the container 106 is aligned in the vertical direction.
  • This direction B is normally on the level 116 on which the waste container 106 rests.
  • This level 116 is generally not the same as the level on which the garbage truck stands with its wheels during the emptying process.
  • the direction B is generally not aligned parallel to the stroke direction H.
  • the lifting and tilting frame 111 is set in lifting movement by actuating the switch 72, the receiving bar 108 resting against the edge of the container 106 from below and the container 106 with the continuing lifting movement upwards lifts up.
  • the envelope edge 104 lies on the balance beam 100 from above, as a result of which the two contacts 94, 96 come into contact with one another. If the container 106 does not rest exactly on the receiving bar 108, the cover edge 104 cannot lie exactly on the balance beam 100, so that the two contacts 94, 96 cannot come into mutual contact position.
  • the correspondingly correct or incorrect position of the container on the balance beam 100 and thus on the receiving bar 108 is determined after a predetermined stroke and the three-way valve 14 is adjusted accordingly or left in its open position c.
  • the device according to the invention can be arranged both for single beds and for multiple beds of any design.
  • the contact members 94, 96 can be any contacting means, which also presuppose mutual contact.
  • Fig. 4 the lifting and tipping frame 111 is shown with attached container 106, which is provided with a safety device which is intended to prevent people from being injured by contact with the moving lifting and tipping frame.
  • a switching element 120 is laterally attached to the lifting and tilting frame 111.
  • This switching element has a two-dimensional extent and largely covers the space between the waste container 106 and the one adjacent to the waste container Swing arms of the lifting and tilting frame 111. These switching elements 120 are switched by touching them from the side. This switching causes the lift-tilt frame 111 to be blocked in its current lift-tilt position. This is achieved in that the shut-off valve 14 present in the pressure medium power circuit is adjusted into its blocking position b by switching the switching element 120.
  • a further switching element 122 prevents the side of the lifting / tilting frame 111 facing away from the container 106 it is present that a person who has fallen under the lifted lift and tilt frame 111.1 can be injured by the lifted and tilting frame moving down.
  • the switching element 122 acts on the shut-off valve 14 in the same way as the switching element 120.
  • the switching element 122 which is present under the lifting / tipping frame 111.1 would first come into contact with a person present under the lifting / tipping frame. Through this contact, the shut-off valve 14 would be adjusted to its shut-off position b in a manner similar to that by the switching element 120.
  • the switching element 122 is also flat. While the switching element 120 largely covers the lifting and tilting frame 111 on the side, the switching element 122 protects the raised and tilting frame 111.1 from below. The shape and size of the switching elements 120, 122 thus depend on the design and size of the respective lifting / tilting frame 111.

Abstract

In an installation for emptying containers, particularly refuse containers, the lifting and tilting frame (111) for emptying the container (106) is actuated by means of a pressure medium power circuit. This installation possesses, inter alia, an electrical control device (70) for actuating the pressure medium power circuit and an actuating device (72) for activating the electrical control device (70). This installation is characterised by a hydraulically operating metering device, by means of which the number of vibratory movements made by the container in its actual emptying position can be predetermined. <IMAGE>

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine Vorrichtung zum Entleeren von Behältern, insbesondere Müllbehältern, mit zumindest einer Hub-Kippvorrichtung, die mit einem Hub-Kipprahmen zum Aufnehmen des zu entleerenden Behälters versehen ist, mit einem Druckmittelleistungskreis zum Betätigen des Hub-Kipprahmens, mit einer elektrischen Steuereinrichtung zum Aktivieren des Druckmittelleistungskreises und mit einer Betätigungseinrichtung zum Aktivieren der elektrischen Steuereinrichtung.The invention relates to a device for emptying containers, in particular garbage containers, with at least one lifting and tipping device which is provided with a lifting and tipping frame for receiving the container to be emptied, with a pressure medium power circuit for actuating the lifting and tipping frame, with an electrical control device for Activate the pressure medium power circuit and with an actuating device for activating the electrical control device.

STAND DER TECHNIKSTATE OF THE ART

Es ist eine Vorrichtung bekannt (WO 85/03689), die mit einem elektrischen Steuerstromkreis versehen ist, der einen von einem auf die Hub-Kippvorrichtung angesetzten Behälter betätigten Schalter zum Einschalten des Steuerungsablaufes und einen die zeitliche Ventilsteuerung für den Bewegungsablauf bestimmenden Zeitschalter enthält. Durch das Einschalten des Steuerungsablaufes wird ein in dem Druckmittelleistungskreis angeordnetes Mehr-Wege-Ventil in seine AUF-Stellung verstellt, so daß das Druckmittel zu den die Bewegung des Hub-Kipprahmens bewirkenden Hub- bzw. Schwenkzylindern strömen kann. Von dem Mehr-Wege-Ventil führt eine Bypassleitung über ein Rücklaufventil in ein Druckmittelreservoir zurück.Die Hub-Kippvorrichtung kann damit automatisch durch den auf die Hub-Kippvorrichtung angesetzten Behälter gestartet werden. Sofern der Müllbehälter nicht richtig auf der Hub-Kippvorrichtung vorhanden ist, läßt sich die Vorrichtung nicht in Bewegung setzen. Der für die zeitliche Ventilsteuerung vorgesehene elektrische Steuerstromkreis kann bei dieser bekannten Vorrichtung ferner derart ausgebildet sein, daß bei Freigabe des auf der Hub-Kippvorrichtung aufsitzenden Behälters von dem die Hub-Kippvorrichtung startenden Schalter die Hub-Kippvorrichtung in ihre Ausgangsstellung zurückversetzt wird. Hiermit wird erreicht, daß die Hub-Kippbewegung dann nicht fortgeführt wird, wenn der Behälter seinen Kontaktsitz auf dem Schalter verloren haben sollte.A device is known (WO 85/03689) which is provided with an electrical control circuit which contains a switch actuated by a container placed on the lifting and tilting device for switching on the control sequence and a time switch which determines the time valve control for the movement sequence. By switching on the control sequence, a multi-way valve arranged in the pressure medium power circuit is moved into its OPEN position, so that the pressure medium can flow to the lifting or pivoting cylinders causing the movement of the lifting / tilting frame. A bypass line leads from the multi-way valve via a return valve to a pressure medium reservoir, which means that the lifting and tipping device can be started automatically by the container attached to the lifting and tipping device. If the garbage container is not correctly positioned on the lifting and tipping device, the device cannot be set in motion. The electrical control circuit provided for the temporal valve control can be known in this The device can also be designed such that when the container seated on the lifting and tipping device is released by the switch starting the lifting and tipping device, the lifting and tipping device is returned to its starting position. This ensures that the stroke-tilt movement is not continued if the container should have lost its contact seat on the switch.

Bei dieser Ausbildung dient der Schalter dazu, den Entleerungsvorgang automatisch in Gang zu setzen. Der Entleerungsvorgang wird allerdings unterbrochen, sobald der Müllbehälter nicht mehr auf dem Schalter aufliegt. Die Wahrscheinlichkeit, daß ein richtig angesetzter Behälter seinen Sitz während des Entleervorganges verlieren sollte, ist beliebig unwahrscheinlich und beispielsweise nur bei einem Bruch von tragenden Baugliedern vorstellbar. Falls etwas Derartiges eintreten sollte, wäre allerdings diese bekannte, den Hub-Kippvorgang unterbrechende Notabschaltung wenig hilfreich. Der Behälter würde in einem derartigen Unglücksfall unabhängig von dem Zurückfahren des Hub-Kipprahmens unkontrolliert zurückfallen.With this design, the switch is used to automatically start the emptying process. However, the emptying process is interrupted as soon as the waste container is no longer on the switch. The likelihood that a correctly placed container should lose its seat during the emptying process is arbitrarily improbable and, for example, only conceivable if structural members break. If something like this should occur, this known emergency shutdown, which interrupts the lift-tilt process, would not be very helpful. In such an accident, the container would fall back in an uncontrolled manner regardless of the retraction of the lifting and tipping frame.

Bei dieser bekannten Vorrichtung kann der Entleerungsvorgang in jedem Falle nur dann gestartet werden, wenn der Behälter seinen vorschriftsmäßigen Sitz auf der Hub-Kippvorrichtung eingenommen hat, da er nur in dieser Lage den an der Hub-Kippvorrichtung vorhandenen Schalter kontaktieren kann.In this known device, the emptying process can only be started in any case when the container has taken its proper seat on the lifting and tipping device, since it can only contact the switch on the lifting and tipping device in this position.

Nun sind die örtlichen Verhältnisse beim Entleeren von Müllbehältern nicht immer so, daß die Standfläche des Müllbehälters in derselben Ebene liegt wie die Standfläche, auf der während eines Entleervorganges das Müllfahrzeug mit seinen Rädern aufsteht. Quer- und Längsneigungen der Straßenoberfläche bewirken, daß in aller Regel der Behälter schiefwinklig an der Rückwand des Müllfahrzeugs vorhanden ist. Dies ist auch der Grund dafür, daß bei dieser bekannten Vorrichtung der Müllbehälter auf die Hub-Kippvorrichtung aufgesetzt werden muß, da er im die Hub-Kippvorrichtung nicht belastenden Zustand nicht parallel zur Aufnahmeleiste der Hub-Kippvorrichtung ausgerichtet ist. Der Entleervorgang kann nämlich erst gestartet werden, wenn der Behälter auf der Hub-Kippvorrichtung - in vorgeschriebener Ausrichtung - aufgelagert worden ist.Now the local conditions when emptying garbage containers are not always such that the footprint of the garbage container is in the same plane as the footprint on which the garbage truck stands with its wheels during an emptying process. Transverse and longitudinal inclinations of the road surface mean that the container is usually present at an oblique angle on the rear wall of the refuse collection vehicle. This is also the reason why, in this known device, the waste container must be placed on the lifting and tipping device, since it is not aligned parallel to the receiving bar of the lifting and tipping device in the non-loading condition of the lifting and tipping device. The emptying process can only be started when the container has been placed on the lifting and tipping device - in the prescribed orientation.

Das Vorhandensein eines Schalters, der durch einen vorschriftsmäßig an der Hub-Kippvorrichtung hängenden Behälter automatisch betätigt wird, ist im übrigen aus der DE-OS 27 21 059 bekannt. Der dortige Schalter dient zum Kontrollieren des richtigen Sitzes des Müllbehälters in der Weise, daß der Schalter durch den Behälter eingeschaltet wird und eine Kontrolleuchte zum Leuchten bringt. Leuchtet die Kontrollleuchte nicht auf, so sitzt der Behälter nicht ordnungsgemäß auf der Hub-Kippvorrichtung auf. Eine den Müllvorgang einleitende und überwachende Bedienperson hat dann die Möglichkeit, durch Betätigen entsprechender Betätigungsglieder den weiteren Hub-Kippvorgang zu unterbrechen.The presence of a switch which is automatically actuated by a container hanging from the lifting / tilting device in accordance with regulations is known from DE-OS 27 21 059. The switch there serves to check that the waste container is seated correctly in such a way that the switch is turned on by the container and a control lamp lights up. If the indicator light does not come on, the container is not properly seated on the lifting and tipping device. An operator who initiates and monitors the garbage process then has the option of interrupting the further lifting and tilting process by actuating corresponding actuating members.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine verbesserte, sichere Vorrichtung zum Entleeren von Behältern, insbesondere Müllbehältern anzugeben.On the basis of this prior art, the object of the invention is to provide an improved, safe device for emptying containers, in particular refuse containers.

Die Lösung dieser Erfindung ist durch die Merkmale des Hauptanspruchs gegeben. Die erfindungsgemäße Vorrichtung zum Entleeren von Müllbehältern, insbesondere Müllbehältern der eingangs genannten Art, zeichnet sich dementsprechend durch eine verbesserte Automatisation des eigentlichen Hub-Kippvorganges und damit des Entleerungsvorganges aus. Dies wird dadurch erreicht, daß in der Bypassleitung ein zweites, als Mehr-Wege-Ventil ausgebildetes Absperrventil und ein durch diese Leitung zweiseitig beaufschlagbarer Zylinder in Reihe geschaltet vorhanden sind, daß der Hubzylinder mit einer die Bewegungen seines Kolbens zählenden Einrichtung verbunden ist, wobei durch das Umschalten des zweiten Absperrventils diese Bewegung in ihrer jeweiligen Richtung umkehrbar ist, daß ein Schaltorgan in der zu den Hub-Kippzylindern führenden Leitung vorhanden ist, daß dieses Schaltorgan mit dem zweiten Absperrventil derart verbunden ist, daß bei Erreichen eines vorbestimmten Leitungsdruckes, bei dem die Hub-Kippzylinder sich in ihrer maximalen Hub-Kippstellung befinden, dieses zweite Absperrventil aus seiner Absperrstellung umschaltbar ist und daß die Zähleinrichtung mit der Steuereinrichtung für das von der Bypassleitung kurzgeschlossene erste Absperrventil derart verbunden ist, daß bei Erreichen einer vorbestimmten Anzahl von Bewegungen des Kolbens das erste Absperrventil in seine den freien Rückfluß des Druckmittels aus den Hub-Kippzylindern ermöglichende Rückflußstellung umschaltbar ist. Eine derartig ausgebildete automatisch arbeitende Entleervorrichtung besitzt damit eine hydraulisch arbeitende Zähleinrichtung, mit der die Anzahl der Rüttelbewegungen des Behälters in seiner eigentlichen Entleerstellung vorbestimmt werden kann.The solution of this invention is given by the features of the main claim. The device according to the invention for emptying garbage containers, in particular garbage containers of the type mentioned at the outset, is accordingly distinguished by improved automation of the actual lifting and tipping process and thus of the emptying process. This is achieved in that in the bypass line there is a second shut-off valve designed as a multi-way valve and a cylinder which can be acted on from both sides by this line, in that the lifting cylinder is connected to a device counting the movements of its piston, whereby by switching the second shut-off valve this movement is reversible in its respective direction that a Switching element is present in the line leading to the lift-tilt cylinders that this switch element is connected to the second shut-off valve in such a way that when a predetermined line pressure is reached, at which the lift-tilt cylinders are in their maximum lift-tilt position, this second shut-off valve its shut-off position is switchable and that the counting device is connected to the control device for the first shut-off valve short-circuited by the bypass line in such a way that when a predetermined number of movements of the piston is reached, the first shut-off valve is in its reflux position which allows the pressure medium to flow back freely from the lift-tilt cylinders is switchable. An automatically operating emptying device designed in this way thus has a hydraulically operating counting device with which the number of shaking movements of the container in its actual emptying position can be predetermined.

Vorbekannt ist es in diesem Zusammenhang aus der bereits erwähnten WO 85/03689, den Rüttelvorgang über ein Zeitrelais zu steuern. Nach einer bestimmten Zeitdauer wird der Entleervorgang durch dieses Zeitrelais beendet. In der durch das Zeitrelais zur Verfügung gesetzten Zeit zum Entleeren eines Müllbehälters hängt die Anzahl der Rüttelbewegungen, die für ein vollständiges Entleeren von Müllbehältern unumgänglich sind, von der Geschwindigkeit ab, mit der die Behälter hin- und herbewegt werden. Nachdem sich ungleiche Behälter aber nicht in jedem Fall mit konstant gleicher Geschwindigkeit aus ihrer maximalen Hubstellung zurückbewegen, ist die Anzahl der Rüttelbewegungen dementsprechend unterschiedlich. Mit der erfindungsgemäßen Vorrichtung läßt sich dieser Nachteil vermeiden, da nicht die Zeitdauer sondern die Anzahl der Rüttelbewegungen dem Entleervorgang zugrundegelegt werden.In this context, it is previously known from the already mentioned WO 85/03689 to control the shaking process via a time relay. After a certain period of time, the emptying process is ended by this time relay. In the time provided by the time relay for emptying a garbage container, the number of shaking movements that are essential for a complete emptying of garbage containers depends the speed at which the containers are moved back and forth. Since unequal containers do not always move back from their maximum stroke position at the same constant speed, the number of shaking movements varies accordingly. This disadvantage can be avoided with the device according to the invention, since the emptying process is not based on the duration but the number of shaking movements.

In vorteilhafter Weise ist in dem Hubzylinder ein zweiter Kolben vorhanden, der durch den ersten Kolben verschiebbar ist und dar außerhalb des Hubzylinders als Kontakt für ein elektrisches Zählwerk derart wirksam ist, daß bei jeder Kontaktierung des zweiten Kolbens mit dem Zählwerk letzteres weiterzählt.Advantageously, a second piston is present in the lifting cylinder, which is displaceable by the first piston and is so effective outside the lifting cylinder as a contact for an electrical counter that the latter continues to count with each contact of the second piston with the counter.

Die erfindungsgemäße Vorrichtung ist nach einem weiteren Merkmal der Erfindung als Folgeschaltung ausgebildet; das bedeutet, daß während der Aufwärtsbewegung des Hub-Kipprahmens letzterer durch eine erste Zylindereinheit zuerst angehoben und anschließend durch eine zweite Zylindereinheit verschwenkt wird. Bei einer derartig ausgebildeten erfindungsgemäßen Vorrichtung ist zwischen dem ersten Absperrventil und den Hub-Kippzylindern ein Verzweigungsventil vorhanden, mit dem das Druckmittel entweder zu einer die Hubbewegung verursachenden ersten Zylindereinheit oder zu einer die Schwenkbewegung verursachenden zweiten Zylindereinheit steuerbar ist; ferner ist eine Leitung zwischen der ersten und der zweiten Zylindereinheit mit einem Druckbegrenzungsventil vorhanden, wobei das Druckbegrenzungsventil von einer Bypassleitung mit einem Rückschlagventil umgeben ist und das Rückschlagventil die Bypassleitung in Richtung auf die zweite Zylindereinheit hin versperrt. Das Verzweigungsventil wird dabei in vorteilhafter Weise durch die Hub-Kippvorrichtung selber umgeschaltet. Damit wird erreicht, daß in Abhängigkeit von der zurückgelegten Hub-Kippbewegung das Verzweigungsventil entsprechend umgestellt wird.According to a further feature of the invention, the device according to the invention is designed as a sequential circuit; This means that during the upward movement of the lifting and tilting frame, the latter is first raised by a first cylinder unit and then pivoted by a second cylinder unit. In such a device according to the invention, a branching valve is present between the first shut-off valve and the lift-tilt cylinders, with which the pressure medium can be controlled either to a first cylinder unit causing the lifting movement or to a second cylinder unit causing the pivoting movement; there is also a line between the first and the second cylinder unit with a pressure relief valve, the pressure relief valve being surrounded by a bypass line with a check valve and the check valve blocking the bypass line in the direction of the second cylinder unit. The branch valve is advantageously switched by the lift-tilt device itself. It is thereby achieved that the branching valve is changed accordingly depending on the stroke-tilt movement.

Eine konstruktiv einfache Möglichkeit, um das Verzweigungsventil durch die Hub-Kippvorrichtung umzuschalten, zeichnet sich dadurch aus, daß ein Betätigungsglied am Hub-Kipprahmen so vorhanden ist, daß nach Überwindung eines vorbestimmten Hubweges das Verzweigungsventil den Druckmittelzufluß zu der die Hubbewegung verursachenden Zylindereinheit versperrt und zu der anderen Zylindereinheit freigibt, wobei das Betätigungsglied das Verzweigungsventil in dieser Stellung hält, solange der tatsächliche Hubweg des Hub-Kipprahmens den vorbestimmten Hubweg nicht unterschreitet.A structurally simple way to switch the branch valve by the lifting and tilting device is characterized in that an actuating member is provided on the lifting and tilting frame in such a way that, after overcoming a predetermined stroke, the branching valve blocks and closes the pressure medium flow to the cylinder unit causing the lifting movement releases the other cylinder unit, the actuator holding the branch valve in this position as long as the actual stroke of the lifting and tilting frame does not fall below the predetermined stroke.

Aus arbeitsschutzrechtlichen Überlegungen ist es wünschenswert, daß automatisch ablaufende Arbeitsvorgänge beim Auftreten von möglichen Gefahrenmomenten ohne das Einwirken von Bedienpersonen automatisch angehalten werden können. Dies bedeutet für den vorliegenden automatischen Arbeitsablauf der Entleervorrichtung, daß verhindert werden muß, daß die Vorrichtung bedienende oder fremde Personen, die während des Entleervorganges in den Arbeitsbereich der Hub-Kippvorrichtung gelangen, oder daß dort vorhandene Personen durch die Bewegung des Hub-Kipprahmens - beispielsweise bei der Abwärtsbewegung desselben infolge Kontakt mit dem Hub-Kipprahmen - verletzt werden.For reasons of occupational health and safety law, it is desirable that automatically running work processes can be stopped automatically without the intervention of operating personnel when possible moments of danger occur. For the present automatic work flow of the emptying device, this means that it must be prevented that the device is operated by people or other people who get into the working area of the lifting and tipping device during the emptying process, or that people present there by the movement of the lifting and tilting frame - for example when moving downward as a result of contact with the lifting and tipping frame.

Unter diesen Gesichtspunkten hat es sich als günstig herausgestellt, die automatisch arbeitende Vorrichtung zum Entleeren von Behältern, insbesondere Müllbehältern mit einem Schaltelement auszugestalten, das ständig im Arbeitsbereich der Hub-Kippvorrichtung vorhanden ist, und dieses Schaltelement mit dem im Druckmittelleistungskreis vorhandenen Absperrventils so zu verbinden, daß bei Kontaktierung des Schaltelements durch eine fremde Person das Absperrventil in seine den Leitungsfluß des Druckmediums blockierende Stellung verstellt wird. Durch Berührung mit dem Schaltelement wird damit automatisch der weitere Arbeitsablauf unterbrochen, so daß in den Arbeitsbereich eindringende oder dort vorhandene Personen durch die Bewegung des Hub-Kipprahmens nicht verletzt werden können.From these points of view, it has proven to be advantageous to design the automatically operating device for emptying containers, in particular refuse containers, with a switching element that is constantly present in the working area of the lifting and tilting device, and to connect this switching element to the shut-off valve present in the pressure medium power circuit, that when the switching element is contacted by a stranger, the shut-off valve is moved into its position blocking the line flow of the pressure medium. By touching the switching element, the further workflow is automatically interrupted, so that people who enter the work area or are present there due to the movement of the lifting and tilting frame cannot be injured.

Als besonders günstig hat es sich herausgestellt, das Schaltelement am Hub-Kipprahmen zu befestigen. Das Schaltelement wird dann bei der Bewegung des Hub-Kipprahmens mitbewegt, was nicht störend ist; vielmehr wird dadurch auf konstruktiv einfache Weise sichergestellt, daß das Schaltelement immer in unmittelbarer Nachbarschaft zu dem sich bewegenden und die Gefahr auslösenden Hub-Kipprahmen vorhanden ist.It has proven to be particularly favorable to attach the switching element to the lifting and tilting frame. The switching element is then moved with the movement of the lifting and tilting frame, which is not disturbing; Rather, it is ensured in a structurally simple manner that the switching element is always present in the immediate vicinity of the moving and tilting lifting frame which triggers the danger.

Um einen großen Arbeitsbereich mit Hilfe dieses Schaltelementes sichern zu können, ist in vorteilhafter Weise ein erstes Schaltelement vorhanden, das so ausgedehnt vorhanden ist, daß es den Hub-Kipprahmen seitlich zum größten Teil abdeckt. In Ergänzung oder alternativ dazu kann ein zweites Element vorhanden sein, das seinerseits so ausgedehnt ausgebildet ist, daß es den maximal nach oben hochgeschwenkten Hub-Kipprahmen zum größten Teil von unten her abdeckt. Eine Bedienperson, die zufälligerweise unter den hochgeschwenkten Hub-Kipprahmen geraten ist, kann so nicht durch den sich herabbewegenden Hub-Kipprahmen verletzt werden, da beim Abwärtsbewegen des Hub-Kipprahmens die Person zeitlich vor ihrer Berührung mit dem Hub-Kipprahmen mit dem unter dem Hub-Kipprahmen vorhandenen Schaltelement in Berührung kommt. Dies hat zur Folge, daß der Hub-Kipprahmen in seiner momentanen Stellung arretiert wird. Ähnliches gilt für eine seitlich an den Hub-Kipprahmen herantretende Person, die ebenfalls zeitlich vor dem Kontakt mit dem Hub-Kipprahmen vorher mit dem seitlich an Hub-Kipprahmen vorhandenen Schaltelement in Kontakt gerät, dieses seitlich verschiebt und ebenfalls dadurch bewirkt, daß der Hub-Kipprahmen in seiner momentanen Stellung arretiert wird.In order to be able to secure a large working area with the aid of this switching element, a first switching element is advantageously provided, which is so extensive that it largely covers the lifting and tipping frame on the side. In addition or as an alternative to this, a second element can be present, which in turn is designed so that it largely covers the lifting and tilting frame which is pivoted upwards as much as possible from below. An operator who has accidentally gotten under the swung-up lifting and tipping frame cannot be injured by the moving down and tipping frame, because when the lifting and tipping frame is moved down, the person timed before they came into contact with the lifting and tipping frame with the one under the lift -Tilting frame existing switching element comes into contact. This has the consequence that the lifting and tilting frame is locked in its current position. The same applies to a person approaching the lifting and tipping frame on the side, who also comes into contact with the switching element provided on the side of the lifting and tipping frame before the contact with the lifting and tipping frame, moves it laterally and also causes the lifting and Tilt frame is locked in its current position.

Weitere Ausgestaltungen und Vorteile der Erfindung sind den in den Ansprüchen weiterhin aufgeführten Merkmalen zu entnehmen.Further refinements and advantages of the invention can be found in the features which are also listed in the claims.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Die der Beschreibung und der Zeichnung zu entnehmenden Merkmale können bei anderen Ausführungsformen der Erfindung einzeln für sich oder zu mehreren in beliebiger Kombination angewendet werden. Es zeigen:

Fig. 1
ein Schaltschema für eine Vorrichtung zum Entleeren von Müllbehältern, die mit einer den richtigen Sitz des Müllbehälters kontrollierenden Überwachungseinrichtung ausgestattet ist,
Fig. 2
eine perspektivische Teilansicht des mit Elementen der Überwachungseinrichtung ausgestatteten Hub-Kipprahmens und eines vor dem Hub-Kipprahmen positionierten Müllbehälters,
Fig. 3
eine perspektivische Ansicht des auf dem Hub-Kipprahmen positionierten Behälters nach Fig. 2, und
Fig. 4
eine schematische Seitenansicht des Hub-Kipprahmens mit angesetztem Müllbehälter in einer - durchgezogenen - unteren Stellung und - strichpunktierten - oberen Stellung, der sowohl seitlich als auch von unten mit einer Sicherungseinrichtung versehen ist.
The invention is described and explained in more detail below with reference to the embodiment shown in the drawing. The features that can be gathered from the description and the drawing can be used in other embodiments of the invention individually or in groups in any combination. Show it:
Fig. 1
1 shows a circuit diagram for a device for emptying waste containers, which is equipped with a monitoring device that checks that the waste container is seated correctly,
Fig. 2
2 shows a perspective partial view of the lifting and tilting frame equipped with elements of the monitoring device and a waste container positioned in front of the lifting and tilting frame,
Fig. 3
a perspective view of the container positioned on the lifting and tilting frame according to FIG. 2, and
Fig. 4
is a schematic side view of the lifting and tilting frame with attached waste container in a - solid - lower position and - dash-dotted - upper position, which is provided both laterally and from below with a safety device.

WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS OF CARRYING OUT THE INVENTION

Aus einem nicht dargestellten Druckmittel-Versorgungstank wird mittels einer Pumpe P über eine Leitung 12 ein Drei-Wege-Ventil 14 mit einem Druckmittel beaufschlagt. Von dem Drei-Wege-Ventil 14 führt eine Druckmittelleitung 16 zu einem Zwei-Wege-Ventil 18. Das Druckmittel kann von diesem Zwei-Wege-Ventil 18 über eine weitere Leitung 20 zu einem Hub-Kippzylinder 22 geleitet werden. Über eine weitere Leitung 24 wird das Druckmittel von dem Zwei-Wege-Ventil 18 an der Stelle 28 in eine von der Leitung 20 abzweigende Leitung 26 eingeleitet. Von dort strömt es in der Leitung 26 weiter zu einer Verzweigungsstelle 38, wo es in einer linken Leitung 30 in einen linken Schwenkzylinder 32 und in einer rechten Leitung 34 in einen rechten Schwenkzylinder 36 einmündet.From a pressure medium supply tank, not shown, a three-way valve 14 is acted upon by a pump P via a line 12 with a pressure medium. A pressure medium line 16 leads from the three-way valve 14 to a two-way valve 18. The pressure medium can be directed from this two-way valve 18 via a further line 20 to a lifting and tilting cylinder 22. Via a further line 24, the pressure medium is introduced from the two-way valve 18 at point 28 into a line 26 branching off line 20. From there it flows in line 26 to a branching point 38, where it opens into a left swivel cylinder 32 in a left line 30 and into a right swivel cylinder 36 in a right line 34.

In der Verzweigungsstelle 38 ist ein Schalter 40 angeschlossen, der aus seiner Stellung a bei einem bestimmten Leitungsdruck in seine Stellung b umgeschaltet wird.In the branch point 38, a switch 40 is connected, which is switched from its position a to its position b at a certain line pressure.

Von der Leitung 16 zweigt eine Leitung 42 zu einem Hubzylinder 44 ab. In diesem Hubzylinder 44 ist ein Kolben 46 beweglich gelagert. Sofern Druckmittel durch die Leitung 42 in den Hubzylinder 44 eingeleitet wird, wird der Kolben 46 nach - in Fig. 1 - rechts versetzt. Von dem rechten Ende des Hubzylinders 44 führt eine weitere Leitung 48 zu dem Druckmittel-Versorgungstank T.A line 42 branches off from line 16 to a lifting cylinder 44. A piston 46 is movably mounted in this lifting cylinder 44. If pressure medium is introduced into the lifting cylinder 44 through the line 42, the piston 46 is displaced to the right in FIG. 1. A further line 48 leads from the right end of the lifting cylinder 44 to the pressure medium supply tank T.

In dieser Leitung 48 sitzt ein Zwei-Wege-Ventil 50. Zwischen dem Zwei-Wege-Ventil 50 und dem Tank T führt eine Leitung 52 zu dem Drei-Wege-Ventil 14 zurück. Das Zwei-Wege-Ventil 50 ist über eine weitere Leitung 53 mit der Leitung 12 verbunden. Diese Leitung 53 führt durch in einer Stellung a des Zwei-Wege-Ventils 50 durch dasselbe hindurch und mündet in eine Leitung 54, die ihrerseits in ein weiteres Drei-Wege-Ventil 56 einmündet. Von diesem Drei-Wege-Ventil 56 führt ebenfalls eine Rückführleitung 58 zu dem Druckmittel-Versorgungstank T zurück. Eine weitere Leitung 60 führt von diesem Drei-Wege-Ventil 56 zu der Leitung 16.A two-way valve 50 is seated in this line 48. A line 52 leads back to the three-way valve 14 between the two-way valve 50 and the tank T. The two-way valve 50 is connected to the line 12 via a further line 53. This line 53 leads through the same in a position a of the two-way valve 50 and opens into a line 54, which in turn opens into a further three-way valve 56. A return line 58 also leads from this three-way valve 56 to the pressure medium supply tank T back. Another line 60 leads from this three-way valve 56 to line 16.

In der im Bereich zwischen dem Hubzylinder 22 und den beiden Schwenkzylindern 32, 36 vorhandenen Leitung 26 ist ein Druckbegrenzungsventil 62 vorhanden, das erst bei einem bestimmten Leitungsdruck die Leitung 26 freigibt. Dieses Druckbegrenzungsventil 62 ist von einer Bypassleitung 64 umgeben, in der ein Rückschlagventil 66 vorhanden ist. Dieses Rückschlagventil versperrt die Strömungsrichtung aus Richtung der Hubzylinder 22 zu den Schwenkzylindern 32, 36 hin.In the line 26 present in the area between the lifting cylinder 22 and the two swivel cylinders 32, 36 there is a pressure relief valve 62 which only releases the line 26 at a certain line pressure. This pressure relief valve 62 is surrounded by a bypass line 64 in which a check valve 66 is present. This check valve blocks the flow direction from the direction of the lifting cylinders 22 to the pivot cylinders 32, 36.

Ein weiteres Druckbegrenzungsventil 68 ist in einer Leitung 69 vorhanden, die die Leitung 53 mit der Leitung 48 verbindet.Another pressure relief valve 68 is provided in a line 69 which connects line 53 to line 48.

Das Drei-Wege-Ventil 14 wird mittels einer Steuereinrichtung 70 in seine verschiedenen Stellungen a, b, c verstellt. An dieser Steuereinrichtung 70 ist ein Handschalter 72 angeschlossen. Durch Betätigen dieses Schalters 72 wird das Drei-Wege-Ventil 14 in seine Stellung c geschaltet. An dem anderen Drei-Wege-Ventil 56, das über einen von Hand zu betätigenden Betätigungshebel 74 verstellt wird, ist ein Sperrglied 76 vorhanden, das das Drei-Wege-Ventil 56 in seiner Sperr-Stellung b beläßt und verhindert, daß das Ventil 56 mittels des Betätigungshebels 74 verstellt werden könnte. Sofern das Sperrglied 76 aus seiner Sperr-Stellung - in Fig. 1 - nach oben verstellt wird, gelangt es in Kontakt mit zwei Kontakten 80. In der die Kontakte 80 enthaltenden Leitung 82 fließt dann ein elektrischer Strom zu der Steuereinrichtung 70, der bewirkt, daß über die elektrische Leitung 84 das Drei-Wege-Ventil 14 aus seiner Sperr-Stellung b nicht verstellt werden kann, auch nicht durch Betätigen des Schalters 72.The three-way valve 14 is adjusted into its different positions a, b, c by means of a control device 70. A hand switch 72 is connected to this control device 70. By actuating this switch 72, the three-way valve 14 is switched to its position c. On the other three-way valve 56, which is adjusted via a manually operated actuating lever 74, a locking member 76 is present, which leaves the three-way valve 56 in its locked position b and prevents the valve 56 could be adjusted by means of the actuating lever 74. If the blocking element 76 is moved upward from its blocking position - in FIG. 1 - it comes into contact with two contacts 80. An electrical current then flows in the line 82 containing the contacts 80 to the control device 70, which causes that the three-way valve 14 cannot be adjusted from its locked position b via the electrical line 84, not even by actuating the switch 72.

Mit der Steuereinrichtung 70 ist ferner über eine elektrische Leitung 86 ein Zählwerk Z verbunden. Das Zählwerk Z ist seinerseits mit zwei Kontakten 88 verbunden. Diese Kontakte 88 können von einem Kolben 90 kontaktiert werden, der mit seinem von den Kontakten 88 abgewandten Ende in den Hubzylinder 44 hineinragt. Dieser Kolben 90 kann durch den Kolben 46 des Hubzylinders 44 nach rechts und damit in eine die Kontakte 88 kontaktierende Stellung verschoben werden. Jedesmal, wenn der Kolben 90 an den Kontakten 88 anliegt, fließt ein elektrischer Kontakt zu dem Zählwerk Z, wodurch letzteres um eins weiterverstellt wird. Die Zählstellung dieses Zählwerks Z wird in der Steuereinrichtung 70 registriert und bei Erreichen eines vorbestimmten Werts das Drei-Wege-Ventil 14 in seine den Rückfluß freigebende Stellung a verstellt.A counter Z is also connected to the control device 70 via an electrical line 86. The counter Z is in turn connected to two contacts 88. These contacts 88 can be contacted by a piston 90, which protrudes into the lifting cylinder 44 with its end facing away from the contacts 88. This piston 90 can be displaced by the piston 46 of the lifting cylinder 44 to the right and thus into a position contacting the contacts 88. Every time the piston 90 bears against the contacts 88, an electrical contact flows to the counter Z, whereby the latter is adjusted by one. The counting position of this counter Z is registered in the control device 70 and, when a predetermined value is reached, the three-way valve 14 is adjusted into its position a which releases the reflux.

An der Steuereinrichtung 70 ist ferner ein Schalter 92 angeschlossen, der über einen Hebel 93 geschaltet wird. Dieser Hebel 93 wird durch den Hub-Kipprahmen der Hub-Kippvorrichtung in seine beiden Schaltstellungen gebracht. Der Schalter 92 ist mit einem Kontaktglied 94 verbunden, das fest an dem Hub-Kipprahmen vorhanden ist (Fig. 2, 3). Dem Kontaktglied 94 ist ein weiteres Kontaktglied 96 benachbart, das an einem Kragglied 98 befestigt ist. Das Kragglied 98 ist an einem Waagebalken 100 auskragend befestigt. Dieser Waagebalken 100 ist um eine Achse 102 schwenkbar gelagert. Auf dem Waagebalken 100 liegt von oben der Umschlagrand 104 eines Müllbehälters 106 auf, wie näher in den Figuren 2 und 3 noch beschrieben wird. Bei einer bestimmten Hubstellung des Hub-Kipprahmens und einer entsprechenden Schaltstellung des Hebels 93 und damit Schaltstellung des Schalters 92 erfolgt bei Stellung der beiden Kontakte 94, 96 in der in Fig. 1 dargestellten Lage in der Steuereinrichtung 70 ein derartiger Steuerungsbefehl, daß das Drei-Wege-Ventil 14 in seiner den Zufluß des Druckmediums freigebenden Stellung c belassen bleibt.A switch 92 is also connected to the control device 70 and is switched via a lever 93. This lever 93 is brought into its two switching positions by the lifting and tilting frame of the lifting and tilting device. The switch 92 is connected to a contact member 94 which is fixed to the lifting and tipping frame (FIGS. 2, 3). Another contact member 96 is adjacent to the contact member 94 and is fastened to a cantilever member 98. The cantilever 98 is cantilevered on a balance beam 100. This balance beam 100 is pivotally mounted about an axis 102. The cover edge 104 of a waste container 106 rests on the balance beam 100 from above, as will be described in more detail in FIGS. 2 and 3. With a certain lifting position of the lifting and tilting frame and a corresponding switching position of the lever 93 and thus switching position of the switch 92, when the two contacts 94, 96 are in the position shown in FIG. The directional valve 14 remains in its position c releasing the inflow of the pressure medium.

Das in der Leitung 16 vorhandene Zwei-Wege-Ventil 18 wird in seine zwei Stellungen a oder b durch entsprechende Betätigung des Hebels 110 verstellt. In abgesenkter Stellung des Hub-Kipprahmens ist das Zwei-Wege-Ventil in seiner Stellung a (Fig. 1). In dieser Stellung fließt das Druckmittel durch die Leitungen 16 und 20 zu dem Hubzylinder 22, mit der Folge, daß der Hubzylinder 22 den Hub-Kipprahmen nach oben bewegt. Gleichzeitig fließt das Druckmittel durch die Leitung 28 zu den Schwenkzylindern 32, 36. Die Druckmittelleitungen zu den Zylindern 22, 32, 36 sind so ausgelegt, daß zuerst der Hubzylinder 22 und anschließend die beiden Schwenkzylinder 32, 36 verstellt werden.The two-way valve 18 present in the line 16 is adjusted into its two positions a or b by corresponding actuation of the lever 110. In the lowered position of the lifting and tipping frame, the two-way valve is in its position a (FIG. 1). The pressure medium flows through in this position the lines 16 and 20 to the lifting cylinder 22, with the result that the lifting cylinder 22 moves the lifting and tipping frame upwards. At the same time, the pressure medium flows through line 28 to the swivel cylinders 32, 36. The pressure medium lines to the cylinders 22, 32, 36 are designed such that first the lifting cylinder 22 and then the two swivel cylinders 32, 36 are adjusted.

Bei Überschreiten eines bestimmten Druckes in der Leitung 30, 34 wird der Schalter 40 aus seiner Stellung a in seine Stellung b verstellt. Der mit dem Zwei-Wege-Ventil 50 verbundene Schalter 40 bewirkt bei seiner Stellung b, daß das Zwei-Wege-Ventil 50 in seine Stellung b verstellt wird. In dieser Stellung b kann Druckmedium durch die Leitung 53 durch dieses Ventil 50 hindurch und weiter in die Leitung 48 zu dem Hubzylinder 44 strömen. Der in dem Hubzylinder 44 vorhandene Kolben 46 wird infolgedessen in Fig. 1 nach links verstellt. Dadurch wird ein Druckabfall in der Leitung 30, 34 hervorgerufen, wodurch die Schwenkzylinder 32, 36 um ein gewisses Maß zurückversetzt werden. Der Druckabfall bewirkt außerdem, daß der Schalter 40 wieder in seine in Fig. 1 dargestellte Stellung a zurückversetzt wird, wodurch wiederum das Zwei-Wege-Ventil 50 in seine in Fig. 1 dargestellte Stellung a zurückversetzt wird. Dadurch wird wiederum der Zufluß durch die Leitung 48 in den Hubzylinder 44 unterbrochen. Durch weiteres Zuführen von Druckmedium durch die Leitung 12, 16 wird auch der Hubzylinder 44 durch die Leitung 42 hindurch mit Druckmedium beaufschlagt, so daß der Kolben 46 nach rechts, gegen die Kontakte 48 geschoben wird. Gleichzeitig steigt der Druck in den Leitungen 30, 34 an, wodurch die Schwenkzylinder 32, 36 wieder in ihre obere maximale Stellung verstellt werden.When a certain pressure in the line 30, 34 is exceeded, the switch 40 is moved from its position a to its position b. The switch 40 connected to the two-way valve 50, in its position b, causes the two-way valve 50 to be moved into its position b. In this position b, pressure medium can flow through the line 53 through this valve 50 and further into the line 48 to the lifting cylinder 44. The piston 46 present in the lifting cylinder 44 is consequently adjusted to the left in FIG. 1. This causes a pressure drop in the line 30, 34, whereby the pivot cylinders 32, 36 are set back to a certain extent. The pressure drop also causes the switch 40 to be returned to its position a shown in FIG. 1, which in turn causes the two-way valve 50 to be returned to its position a shown in FIG. 1. As a result, the inflow through line 48 into lifting cylinder 44 is again interrupted. By further supplying pressure medium through the line 12, 16, the lifting cylinder 44 is also acted upon by pressure line through the line 42, so that the piston 46 is pushed to the right against the contacts 48. At the same time, the pressure in the lines 30, 34 rises, as a result of which the swivel cylinders 32, 36 are again adjusted to their upper maximum position.

Durch mehrfaches Wiederholen dieser Verfahrensschritte kann der Behälter 106 in eine Rüttelbewegung versetzt werden. Die Anzahl der Rüttelbewegungen wird durch das Zählwerk Z festgestellt. Das mit der Steuereinrichtung 70 verbundene Zählwerk Z bewirkt bei einer bestimmten Anzahl von Rüttelbewegungen, daß das geöffnete Drei-Wege-Ventil 14 in seine Rückflußstellung a zurückversetzt wird.The container 106 can be set in a shaking motion by repeating these method steps several times. The number of shaking movements is determined by the counter Z. The counter Z connected to the control device 70 brings about a certain number of vibrations, that the opened three-way valve 14 is returned to its reflux position a.

Beim Zurückfließen strömt das Druckmittel zuerst aus den Leitungen 30, 34 in die Leitung 24 und von dort über die Leitung 16 durch das geöffnete Drei-Wege-Ventil 14 zurück in die Leitung 52 und von dort über die Leitung 69 in den Tank T. Das Zwei-Wege-Ventil 18 befindet sich dabei in seiner Stellung b, in der die Leitung 20 zum Hubzylinder 22 abgesperrt ist. Aus dem Hubzylinder 22 kann damit das Druckmittel durch das Druckbegrenzungsventil 62 erst dann in die Leitung 24 abfließen, wenn der Druck in den Leitungen 30, 34 unter den Begrenzungswert des Druckbegrenzungsventils 62 gesunken ist. Das bedeutet, daß erst die Schwenkzylinder 32, 36 und dann der Hubzylinder 22 in ihre jeweilige Ausgangsstellung zurückfahren. In dem Zeitpunkt, wo der Hubzylinder 22 sich absenken will, ist der Hub-Kipprahmen soweit abgesenkt vorhanden, daß er den Hebel 110 des Zwei-Wege-Ventils 18 verstellt und damit das Zwei-Wege-Ventil in seine Stellung a zurückversetzt. Nunmehr kann auch aus der Leitung 20 das Druckmittel in den Tank T zurückfließen.When flowing back, the pressure medium first flows from lines 30, 34 into line 24 and from there via line 16 through the opened three-way valve 14 back into line 52 and from there via line 69 into tank T. Das Two-way valve 18 is in its position b, in which the line 20 to the lifting cylinder 22 is shut off. The pressure medium can therefore only flow out of the lifting cylinder 22 through the pressure-limiting valve 62 into the line 24 when the pressure in the lines 30, 34 has dropped below the limit value of the pressure-limiting valve 62. This means that first the swivel cylinders 32, 36 and then the lifting cylinder 22 move back into their respective starting positions. At the time when the lifting cylinder 22 wants to lower, the lifting and tilting frame is present so far lowered that it adjusts the lever 110 of the two-way valve 18 and thus returns the two-way valve to its position a. The pressure medium can now flow back into the tank T from the line 20.

Mit Hilfe das zusätzlich an der Hub-Kippvorrichtung vorhandenen Drei-Wege-Ventils 56 läßt sich die Hub-Kippvorrichtung "von Hand" mit Hilfe des Betätigungshebels 74 in bekannter Weise betätigen. Das Zählwerk Z wird bei dieser Art der Betätigung des Hub-Kipprahmens nicht aktiviert und damit nicht eingesetzt.With the help of the three-way valve 56 additionally present on the lifting and tilting device, the lifting and tilting device can be actuated “by hand” using the actuating lever 74 in a known manner. The counter Z is not activated with this type of actuation of the lifting and tilting frame and is therefore not used.

Die an dem Schalter 92 vorhandenen Kontakte 94, 96 funktionieren auf folgende Weise. Durch Ansetzen des Behälters 106 auf der Aufnahmeleiste 108 des Hub-Kipprahmens 111 kommt der Umschlagrand 104 des Behälters 106 von oben in Kontakt mit der Oberseite des Waagebalkens 100. Der Waagebalken 100 wird dabei entgegen der Kraft einer Feder 112 nach unten gedrückt und parallel zum Umschlagrand 104 ausgerichtet. Das nach unten vom Waagebalken 100 wegragende Kragglied 98 wird entsprechend mitverstellt. Sofern der Behälter 106 seine vorbestimmte Lage auf der Aufnahmeleiste 108 eingenommen hat, liegt das Kontaktglied 96 genau benachbart zum Kontaktglied 94, das am Hub-Kipprahmen vorhanden ist. Sofern nun durch Betätigen des Hebels 93 der Schalter 92 entsprechend geschaltet wird, fließt durch die in Kontaktstellung gegenüberliegenden Kontakte 94, 98 ein entsprechender Steuerungsstrom zu der Steuereinrichtung 70 der bewirkt, daß das Drei-Wege-Ventil 14 in seiner Stellung c verharrt. Sofern die Kontakte 94, 96 sich nicht genau gegenüberliegen, und zwar zu dem Zeitpunkt, wo der Schalter 92 durch den Hebel 93 geschaltet wird, wird mittels der Steuereinrichtung 70 das Drei-Wege-Ventil 14 in seine Stellung a zurückverstellt. Es ist allerdings auch möglich, das Drei-Wege-Ventil in seine Absperrstellung b zu verstellen, in der das Druckmittel nicht in den Tank T zurückströmt, sondern in den Leitungen verharrt, so daß die Hub-Kippvorrichtung und damit der Hub-Kipprahmen ebenfalls in seiner eingenommenen Hub-Kippstellung verharrt. Es kann dann beispielsweise entschieden werden, ob der Hub-Kipprahmen zurück in seine Ausgangsstellung versetzt werden soll oder ob der Hub-Kippvorgang z. B. mit Hilfe des Drei-Wege-Ventils 56 "per Hand" fortgesetzt werden soll. Letzteres wäre beispielsweise denkbar, weil der Behälter 106 trotz nicht exakter Lage auf der Aufnahmeleiste 108 sicher vom Hub-Kipprahmen 110 weiterbewegt und entleert werden kann.The contacts 94, 96 on the switch 92 function in the following manner. By placing the container 106 on the receiving bar 108 of the lifting / tilting frame 111, the cover edge 104 of the container 106 comes into contact with the top of the balance beam 100 from above. The balance beam 100 is pressed downward against the force of a spring 112 and parallel to the cover edge 104 aligned. The cantilever 98 projecting downward from the balance beam 100 is also adjusted accordingly. If the container 106 is its predetermined Has taken position on the receiving bar 108, the contact member 96 is exactly adjacent to the contact member 94, which is present on the lifting and tipping frame. If the switch 92 is now switched accordingly by actuating the lever 93, a corresponding control current flows to the control device 70 through the contacts 94, 98 opposite in the contact position, which causes the three-way valve 14 to remain in its position c. If the contacts 94, 96 are not exactly opposite one another, namely at the time when the switch 92 is switched by the lever 93, the three-way valve 14 is moved back into its position a by means of the control device 70. However, it is also possible to adjust the three-way valve into its shut-off position b, in which the pressure medium does not flow back into the tank T, but remains in the lines, so that the lifting and tilting device and thus the lifting and tilting frame are also in remains in its assumed stroke-tilt position. It can then be decided, for example, whether the lifting and tilting frame should be moved back to its starting position or whether the lifting and tilting process, for. B. to be continued "by hand" with the help of the three-way valve 56. The latter would be conceivable, for example, because the container 106 can be safely moved and emptied by the lifting and tilting frame 110 despite the inaccurate position on the receiving bar 108.

Der Waagebalken 100 ist im nichtbelasteten Zustand im allgemeinen nicht parallel zur Aufnahmeleiste 108 ausgerichtet. So ist die auf ihm normal stehende Richtung W, die auch die Richtung der Spannkraft der Feder 112 wiedergibt, nicht parallel zur Hubrichtung H des Hub-Kipprahmens 111 im Raum ausgerichtet. Der Hub-Kipprahmen 111 ist dabei in gleicher Weise wie das Müllfahrzeug, an dem er befestigt ist, ausgerichtet. Unabhängig dazu ist eine Richtung B vorhanden, mit der der Behälter 106 in vertikaler Richtung ausgerichtet ist. Diese Richtung B steht normal auf der Ebene 116, auf der der Müllbehälter 106 aufruht. Diese Ebene 116 ist im allgemeinen nicht dieselbe wie die Ebene, auf der das Müllfahrzeug während des Entleervorganges mit seinen Rädern aufsteht. So ist auch die Richtung B im allgemeinen nicht parallel zur Hubrichtung H ausgerichtet.In the unloaded state, the balance beam 100 is generally not aligned parallel to the receiving bar 108. Thus, the direction W normal to it, which also reflects the direction of the tensioning force of the spring 112, is not aligned in space parallel to the stroke direction H of the lift / tilt frame 111. The lifting and tilting frame 111 is aligned in the same way as the garbage truck to which it is attached. Regardless of this, there is a direction B with which the container 106 is aligned in the vertical direction. This direction B is normally on the level 116 on which the waste container 106 rests. This level 116 is generally not the same as the level on which the garbage truck stands with its wheels during the emptying process. The direction B is generally not aligned parallel to the stroke direction H.

Sobald der Behälter über der Aufnahmeleiste 108 positioniert ist, wird der Hub-Kipprahmen 111 durch Betätigen des Schalters 72 in Hubbewegung versetzt, wobei sich die Aufnahmeleiste 108 von unten gegen den Rand des Behälters 106 anlegt und den Behälter 106 bei Fortsetzung der Hubbewegung nach oben mit hochhebt. Während dieses Anhebens des Behälterrandes und damit des Behälters legt sich der Umschlagrand 104 von oben auf den Waagebalken 100, wodurch die beiden Kontakte 94, 96 in Kontaktstellung zueinander geraten. Sofern der Behälter 106 nicht genau auf der Aufnahmeleiste 108 aufruht, kann der Umschlagrand 104 auch nicht genau auf dem Waagebalken 100 liegen, so daß die beiden Kontakte 94, 96 nicht in gegenseitige Kontaktstellung geraten können. Die entsprechend richtige oder falsche Position des Behälters auf dem Waagebalken 100 und damit auf der Aufnahmeleiste 108 wird nach einem vorbestimmten Hubweg festgestellt und das Drei-Wege-Ventil 14 entsprechend verstellt bzw. in seiner offenen Stellung c belassen.As soon as the container is positioned above the receiving bar 108, the lifting and tilting frame 111 is set in lifting movement by actuating the switch 72, the receiving bar 108 resting against the edge of the container 106 from below and the container 106 with the continuing lifting movement upwards lifts up. During this lifting of the container edge and thus the container, the envelope edge 104 lies on the balance beam 100 from above, as a result of which the two contacts 94, 96 come into contact with one another. If the container 106 does not rest exactly on the receiving bar 108, the cover edge 104 cannot lie exactly on the balance beam 100, so that the two contacts 94, 96 cannot come into mutual contact position. The correspondingly correct or incorrect position of the container on the balance beam 100 and thus on the receiving bar 108 is determined after a predetermined stroke and the three-way valve 14 is adjusted accordingly or left in its open position c.

Die erfindungsgemäße Vorrichtung kann sowohl für Einfach-Schüttungen als auch für beliebig auszugestaltende Mehrfach-Schüttungen angeordnet werden. Die Kontaktglieder 94, 96 können beliebige - auch eine gegenseitige Berührung voraussetzende - Kontaktierungsmittel sein.The device according to the invention can be arranged both for single beds and for multiple beds of any design. The contact members 94, 96 can be any contacting means, which also presuppose mutual contact.

In Fig. 4 ist der Hub-Kipprahmen 111 mit angehängtem Behälter 106 dargestellt, der mit einer Sicherungseinrichtung versehen ist, die verhindern soll daß durch Kontakt mit dem sich bewegenden Hub-Kipprahmen Personen verletzt werden können.In Fig. 4 the lifting and tipping frame 111 is shown with attached container 106, which is provided with a safety device which is intended to prevent people from being injured by contact with the moving lifting and tipping frame.

An dem Hub-Kipprahmen 111 ist jeweils seitlich ein Schaltelement 120 befestigt. Dieses Schaltelement besitzt eine flächige Ausdehnung und bedeckt weitgehend den Zwischenraum zwischen dem Müllbehälter 106 und den dem Müllbehälter benachbarten Schwenkarmen des Hub-Kipprahmens 111. Diese Schaltelemente 120 werden durch seitliches Berühren geschaltet. Dieses Schalten bewirkt, daß der Hub-Kipprahmen 111 in seiner momentanen Hub-Kippstellung blockiert wird. Dies wird dadurch erreicht, daß durch das Schalten des Schaltelements 120 das in dem Druckmittelleistungskreis vorhandene Absperrventil 14 in seine Sperr-Stellung b verstellt wird.A switching element 120 is laterally attached to the lifting and tilting frame 111. This switching element has a two-dimensional extent and largely covers the space between the waste container 106 and the one adjacent to the waste container Swing arms of the lifting and tilting frame 111. These switching elements 120 are switched by touching them from the side. This switching causes the lift-tilt frame 111 to be blocked in its current lift-tilt position. This is achieved in that the shut-off valve 14 present in the pressure medium power circuit is adjusted into its blocking position b by switching the switching element 120.

Während durch das Schaltelement 120 somit verhindert wird, daß eine seitlich in den Schwenkbereich des Hub-Kipprahmens 111 geratene Person durch den Hub-Kipprahmen 111 verletzt wird, verhindert ein weiteres Schaltelement 122, das an der dem Behälter 106 abgewandten Seite des Hub-Kipprahmens 111 vorhanden ist, daß eine unter den angehobenen Hub-Kipprahmen 111.1 geratene Person durch den sich herabbewegenden Hub-Kipprahmen verletzt werden kann. Dazu wirkt das Schaltelement 122 in gleicher Weise wie das Schaltelement 120 auf das Absperrventil 14 ein. So würde beim Abwärtsbewegen des strichpunktiert dargestellten angehobenen Hub-Kipprahmens 111.1 zuerst das unter dem Hub-Kipprahmen 111.1 vorhandene Schaltelement 122 mit einer unter dem Hub-Kipprahmen vorhandenen Person in Kontakt geraten. Durch diesen Kontakt würde das Absperrventil 14 in ähnlicher Weise wie es auch durch das Schaltelement 120 erfolgt, das Absperrventil 14 in seine Sperr-Stellung b verstellt werden.While the switching element 120 thus prevents a person who laterally falls into the pivoting range of the lifting / tilting frame 111 from being injured by the lifting / tilting frame 111, a further switching element 122 prevents the side of the lifting / tilting frame 111 facing away from the container 106 it is present that a person who has fallen under the lifted lift and tilt frame 111.1 can be injured by the lifted and tilting frame moving down. For this purpose, the switching element 122 acts on the shut-off valve 14 in the same way as the switching element 120. Thus, when the raised lifting / tipping frame 111.1 shown in dash-dot lines is moved downward, the switching element 122 which is present under the lifting / tipping frame 111.1 would first come into contact with a person present under the lifting / tipping frame. Through this contact, the shut-off valve 14 would be adjusted to its shut-off position b in a manner similar to that by the switching element 120.

Ebenso wie das Schaltelement 120 ist auch das Schaltelement 122 flächenhaft ausgebildet. Während das Schaltelement 120 den Hub-Kipprahmen 111 seitlich weitgehend bedeckt, schützt das Schaltelement 122 den angehobenen Hub-Kipprahmen 111.1 von unten her. Form und Größe der Schaltelemente 120, 122 richtet sich so nach der konstruktiven Ausbildung und Größe des jeweiligen Hub-Kipprahmens 111.Just like the switching element 120, the switching element 122 is also flat. While the switching element 120 largely covers the lifting and tilting frame 111 on the side, the switching element 122 protects the raised and tilting frame 111.1 from below. The shape and size of the switching elements 120, 122 thus depend on the design and size of the respective lifting / tilting frame 111.

Claims (9)

  1. Apparatus for emptying containers, particularly refuse containers, with
    - at least one lifting and tipping apparatus, which is provided with a lifting and tipping frame (111) to receive the container (106) to be emptied.
    - a pressure medium power circuit to actuate the lifting and tipping frame (111),
    - an electrical control device (70) to activate the pressure medium power circuit,
    - an actuating device (72) for activating the electrical control device (70),
    - a bypass duct (42, 48, 52) for a shutoff valve (14) which is configured as a multi-path valve in the pressure medium power circuit,
    characterized in that
    - a second shutoff valve (50) configured as a multi-path valve and a lifting cylinder (44) which is acted on on both sides through this duct are present in series in the bypass duct,
    - the lifting cylinder (44) is connected to a device which counts the motions of its piston (46), so that this motion is reversible in its respective direction by changeover of the second shutoff valve (50),
    - a switch element (40) is present in the duct leading to the lifting and tipping cylinders,
    - this switch element (40) is connected to the second shutoff valve (50) such that when a predetermined duct pressure is reached at which the lifting and tipping cylinders are in their maximum lifting and tipping position, this second shutoff valve can be changed over from its shutoff position (a),
    - the counting device (Z) is connected to the control device (70) for the first shutoff valve (14) which is short-circuited by the bypass duct, such that, when a predetermined number of motions of the piston (46) is reached, the first shutoff valve (14) can be changed over into its return flow position (a) in which the free return flow of the pressure medium from the lifting and tipping cylinders is made possible.
  2. Apparatus according to Claim 1,
    characterized in that
    - a second piston (90) is present in the lifting cylinder (44), is displaceable by the first piston (46), and is effective outside the lifting cylinder as a contact (88) for an electrical counter (Z) such that the counter counts further on each contact with it of the second piston.
  3. Apparatus according to Claim 1,
    characterized in that
    - a branching valve (18) is present between the first shutoff valve (14) and the lifting and tipping cylinders, and can control the pressure medium to pass either to a first cylinder unit (22) causing the lifting motion or to a second cylinder unit (32, 36) causing the pivoting motion,
    - a duct (26) is present between the first and the second cylinder unit, with a pressure limiting valve (62),
    - the pressure limiting valve (62) is surrounded by a bypass duct (64) with a check valve (66), wherein the check valve blocks the bypass duct in the direction towards the second cylinder unit.
  4. Apparatus according to Claim 3,
    characterized in that
    the branching valve (18) can be changed over by the lifting and tipping apparatus.
  5. Apparatus according to Claim 4,
    characterized in that
    an actuating element (110) is present on the lifting and tipping frame (106 [sic]) such that after a predetermined lifting path has been travelled, the branching valve (18) shuts off the pressure medium supply to the cylinder unit (22) causing the lifting motion and releases it to the other cylinder unit (32, 36), wherein the actuating element (110) holds the branching valve (18) in this position as long as the actual lifting path of the lifting and tipping frame does not fall below the predetermined lifting path.
  6. Apparatus according to Claim 1,
    characterized in that
    - a switch element (120, 122) is constantly present in the operating region of the lifting and tipping apparatus (111),
    - this switch element (120, 122) is connected to the shutoff valve (14) such that when contacting of the switch element occurs, the shutoff valve (14) can be displaced into its position (b) which shuts off the duct flow of the pressure medium.
  7. Apparatus according to Claim 6,
    characterized in that
    the switch element (120, 122) is attached to the lifting and tipping frame (111).
  8. Apparatus according to Claim 6,
    characterized in that
    a first switch element (120) is present and is enlarged flat, such that it largely covers the lifting and tipping frame (111) laterally, this switch element being switchable by pressure which acts on the switch element in the transverse direction, i.e., in a direction normal to the lifting and tipping plane.
  9. Apparatus according to Claim 6,
    characterized in that
    a second switch element (122) is present and is enlarged flat, such that it largely covers from below the lifting and tipping frame which has been maximally pivoted upwards, this switch element being switchable by pressure which acts on it in the lifting and tipping direction.
EP92121350A 1987-10-20 1988-10-15 Installation for emptying containers, particularly refuse containers Expired - Lifetime EP0541135B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19873735420 DE3735420A1 (en) 1987-10-20 1987-10-20 DEVICE FOR EMPTYING CONTAINERS, IN PARTICULAR WASTE CONTAINERS
DE3735420 1987-10-20
EP88908929A EP0398877B1 (en) 1987-10-20 1988-10-15 Device for emptying containers, in particular refuse containers

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP88908929.8 Division 1988-10-15

Publications (2)

Publication Number Publication Date
EP0541135A1 EP0541135A1 (en) 1993-05-12
EP0541135B1 true EP0541135B1 (en) 1996-01-10

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ID=6338679

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Application Number Title Priority Date Filing Date
EP92121350A Expired - Lifetime EP0541135B1 (en) 1987-10-20 1988-10-15 Installation for emptying containers, particularly refuse containers
EP88908929A Expired - Lifetime EP0398877B1 (en) 1987-10-20 1988-10-15 Device for emptying containers, in particular refuse containers

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88908929A Expired - Lifetime EP0398877B1 (en) 1987-10-20 1988-10-15 Device for emptying containers, in particular refuse containers

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US (1) US5064333A (en)
EP (2) EP0541135B1 (en)
AT (2) ATE91109T1 (en)
AU (1) AU2545488A (en)
DE (3) DE3735420A1 (en)
WO (1) WO1989003794A1 (en)

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Also Published As

Publication number Publication date
US5064333A (en) 1991-11-12
AU2545488A (en) 1989-05-23
DE3882147D1 (en) 1993-08-05
DE3854901D1 (en) 1996-02-22
EP0398877B1 (en) 1993-06-30
ATE132832T1 (en) 1996-01-15
DE3735420A1 (en) 1989-05-03
ATE91109T1 (en) 1993-07-15
WO1989003794A1 (en) 1989-05-05
EP0398877A1 (en) 1990-11-28
EP0541135A1 (en) 1993-05-12

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