EP0467419B1 - Device for picking-up and opening hinged containers - Google Patents

Device for picking-up and opening hinged containers Download PDF

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Publication number
EP0467419B1
EP0467419B1 EP91116090A EP91116090A EP0467419B1 EP 0467419 B1 EP0467419 B1 EP 0467419B1 EP 91116090 A EP91116090 A EP 91116090A EP 91116090 A EP91116090 A EP 91116090A EP 0467419 B1 EP0467419 B1 EP 0467419B1
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EP
European Patent Office
Prior art keywords
shells
hydraulic cylinder
cylinder
actuation
hooks
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
EP91116090A
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German (de)
French (fr)
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EP0467419A1 (en
Inventor
Gerhard Schäfer
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Fritz Schaefer GmbH
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Fritz Schaefer GmbH
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.)
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Publication date
Priority claimed from DE8805173U external-priority patent/DE8805173U1/en
Application filed by Fritz Schaefer GmbH filed Critical Fritz Schaefer GmbH
Priority to EP91116090A priority Critical patent/EP0467419B1/en
Priority to AT91116090T priority patent/ATE86581T1/en
Publication of EP0467419A1 publication Critical patent/EP0467419A1/en
Application granted granted Critical
Publication of EP0467419B1 publication Critical patent/EP0467419B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/12—Refuse receptacles; Accessories therefor with devices facilitating emptying
    • B65F1/125—Features allowing the receptacle to be lifted and emptied by its bottom

Definitions

  • the invention relates to a device for attaching and opening folding containers consisting of two half-shells, such as are used for collecting or for taking up and disposing of old material, garbage or the like, in which a hanging crosspiece projecting downwards, in particular to be arranged on a crane boom, has hydraulically actuated hooks, which can be brought into engagement with hooking elements on the two half-shells of the folding container, which are hingedly connected to one another along a swivel axis at the top, and are guided on at least one horizontal support of the suspension crossmember and a hydraulic cylinder is arranged above the horizontal support with the hook in connection.
  • the hanging crossbar to be arranged on a crane boom has hydraulically actuated hooks that protrude downwards, which with Hooking elements on the two half-shells of the folding container, which are articulated on the upper side along a pivot axis, can be brought into engagement.
  • the suspension crossmember has two horizontally displaceable hooks with hook openings lying upwards, and the hooking elements are arranged on the upper side of the half-shells of the folding container in such a way that their connecting line lies on a horizontal plane running above and at a distance from the pivot axis of the half-shells.
  • the hooks are guided on at least one horizontal support of the suspension crossmember and a hydraulic cylinder is arranged above the horizontal support, which is connected with its cylinder jacket to one hook and with its piston rod to the other hook.
  • the aim of the invention is to provide a generic device which ensures that the two container sections or half-shells of each folding container can be properly emptied in succession by remote control, for example from the driver's seat of the disposal vehicle.
  • Such a device for attaching and opening folding containers is according to the invention characterized in that the hydraulic cylinder can be brought from its basic position corresponding to the closed position of the two half-shells of the folding container into two different actuation positions, a first spreading position of the two half-shells being determinable by the first actuation position while the second actuation position of an expanded spreading position of the two half-shells and at the same time the unlocking position of a bulkhead arranged between the half-shells is associated with that in the direction of the basic position with pressure medium or in the direction the actuating positions relieved cylinder space of the - double-acting - hydraulic cylinder is assigned a metering unit, which consists of a metering cylinder, and parallel to it a manually operated 2/2-way valve and a preload valve, that the metering cylinder has a predetermined filling volume has and can be acted upon from the aforementioned cylinder chamber of the hydraulic cylinder that the biasing valve is a check valve that can only be opened to the
  • a metering unit designed in this way limits the actuating travel of the hydraulic cylinder of the device for attaching and opening folding containers to the first actuating position via the metering cylinder.
  • this hydraulic cylinder can only be moved into its second actuation position after the 2/2-way valve has been opened manually.
  • the hydraulic cylinder is finally returned to its basic position via the preload valve designed as a check valve.
  • the entire metering unit is arranged between the hydraulic cylinder and a 3/2-way valve which is automatically held in its closed position and manually movable in two different actuation positions.
  • the piston of the metering cylinder is held under tension against its filling direction and / or can be pressurized so that it can be emptied again via the 2/2-way valve brought into the open position , after the Hydraulic cylinder has reached its second actuation position.
  • the drawing shows a folding container 1 as it can be used in particular for collecting or for receiving and disposing of old material, garbage or the like. It consists of two container sections or half-shells 2a and 2b, which are connected to one another at their upper side via joints 3 in such a way that the marginal edges of their mutually facing opening sides can either be placed close together on a vertical central plane or else spread apart in a wedge shape around the joints 3 can be, as can be seen particularly clearly in FIGS. 1 and 2 of the drawing.
  • Each container section or each half-shell 2a and 2b of the folding container 1 has a hooking element 4a or 4b on its or its upper edge laterally and vertically offset from the axis of the joints 3, with which a power-driven hook 5a or 5b can be selected can couple or uncouple.
  • the power-driven hooks 5a and 5b are slidably guided on a suspension cross member 6, which in turn is carried by a crane boom 7, for example on a disposal vehicle.
  • the folding container 1 can be lifted on the one hand via the crane boom 7.
  • the hooks 5a and 5b can be displaced relative to one another by the power drive on the suspension crossmember 6 such that the two container sections or half-shells 2a and 2b of the folding container 1 can inevitably be displaced in angle relative to one another about the axes of the joints 3 connecting them.
  • the opening edges of the two container sections or half-shells 2a and 2b lie close together on a vertical plane, so that the folding container 1 is closed in itself.
  • its container sections or half-shells 2a and 2b can also be spread apart in a wedge shape around their joints 3, with a first spreading position in FIG. 1 and a second spreading position in FIG. 2 of the drawing.
  • an additional bulkhead 8 is arranged between the opening sides of the two container sections or half-shells 2a and 2b, which is in its closed position or in front of the opening side of one of the container sections or one of the half-shells 2a, 2b in the embodiment shown can be locked on or in front of that of the container section or half-shell 2b.
  • the bulkhead 8 In its locking position, the bulkhead 8 assumes at least approximately parallel position to the opening edge of the container section or the half-shell 2b, as can be clearly seen in FIGS. 1 and 2 of the drawing.
  • the bulkhead 8 is designed as a lifting and pivoting wall, which at its lower end carries latching claws 9, which can be unlocked behind abutments at the lower end of the opening side of the container section or the half-shell 2b.
  • the upper end of the bulkhead 8 carries a hinge axis 10 which runs in sliding guides which are arranged at the upper end of the container section or the half-shell 2b and which extends approximately parallel to the opening plane or the same.
  • the sliding guides for the hinge axis 10 can consist of loops.
  • the length of the sliding guides is dimensioned such that they are at least slightly larger than the depth of engagement of the locking claws 9 behind the abutments.
  • the Power-driven hooks 5a and 5b of the suspension crossmember 6 can be moved along the horizontal support of the suspension crossmember 6 by a power drive, for example a double-acting hydraulic cylinder 14.
  • a power drive for example a double-acting hydraulic cylinder 14.
  • the hydraulic cylinder 14 can be shifted between a basic position, which is assigned to the correct closed position of the folding container 1, and two different actuation positions, which in turn are assigned to different spreading or opening positions of the folding container 1.
  • the first actuation position of the hydraulic cylinder 14 can be seen in FIG. 1 of the drawing, while the second actuation position thereof can be seen in FIG. 2 of the drawing.
  • the hydraulic cylinder 14 preferably engages the hook 5a with its piston rod 14a and the hook 5b with its cylinder housing 14b in order to bring about the opening and closing of the folding container 1.
  • the bulkhead 8 When the folding container 1 is moved from a spreading or opening position corresponding to FIG. 1 into the - larger - spreading or opening position corresponding to FIG. 2, the bulkhead 8 also arrives with the abutments on the container section or on the half-shell 2b disengaged. It moves under the effect of its own weight into the hanging position shown in FIG. 2 and thereby enables the second container section or the half-shell 2b to be emptied automatically.
  • Fig. 3 of the drawing it can be seen that the hydraulic cylinder 14 is designed as a double-acting cylinder, one cylinder space 15a can be acted upon via a pressure medium line 16a, while the other cylinder space 15b via a pressure medium line 16b can be supplied with pressure medium.
  • the pressure medium lines 16a and 16b is assigned a 3/2-way valve 17 which automatically - for. B. by spring force - is held in its central shut-off position. By means of an operating handle 18, however, it can be brought from its central shut-off position into two opposite actuation positions. In the actuation position shifted to the left, the pressure medium line 16a for the cylinder space 15a is acted upon by pressure medium, while the pressure medium line 16b is relieved at the same time. In the actuated position of the 3/2-way valve 17 pushed to the right, however, pressure medium line 16 is acted upon by pressure medium, while pressure medium line 16a is relieved.
  • a metering unit 19 In the pressure medium line 16b leading to the cylinder space 15b of the hydraulic cylinder 14, a metering unit 19 is connected, which essentially comprises three functional components, namely a metering cylinder 20, a 2/2-way valve 21 and a biasing valve 22.
  • the 2/2-way valve 21 is automatically, for. B. by the action of a biasing spring 23, held in its shut-off position and can be brought into its open position manually by an operating lever 24, against the action of the spring 23.
  • the preload valve 22 which has, for example, a set pressure of approximately 20 bar, is located as a check valve in a line branch 16c to the pressure line 16b in such a way that it can only be opened in the flow direction to the cylinder space 15b.
  • the 2/2-way valve 21 When the 2/2-way valve 21 is in the closed position, the cylinder space 15b can thus only come from the pressure medium line 16b via the branch line 16b and so on bias valve 22 arranged therein are acted upon so that the hydraulic cylinder 14 reaches its basic position.
  • the cylinder space 20a of the metering cylinder 20 is in constant communication with the cylinder space 15b of the hydraulic cylinder 14 via a spur line 16d. Its maximum filling volume corresponds to a fraction of the maximum filling volume for the cylinder space 15b.
  • the cylinder space 20a of the metering cylinder 20 is closed off by a piston 20b, which, for example by a spring 20c, is pretensioned in the sense of a reduction in the filling volume for the cylinder space 20.
  • a branch line 16e of the pressure line 16b also leads into the cylinder space of the metering cylinder 20 containing the spring 20c, so that a hydraulic pressure building up here can support the action of the spring 20c.
  • the pressure line 16a comes under pressure medium pressure, while the pressure line 16b is relaxed.
  • the pressure medium flowing into the cylinder space 15a displaces the piston of the hydraulic cylinder 14 carried by the piston rod 14a from left to right, the medium located in the cylinder space 15b being displaced therefrom via the pressure line 16b. Since the 2/2-way valve 21 is in its blocking position and the preload valve 22 acts as a check valve, the medium can only be displaced from the cylinder space 15b via the pressure line 16b and the branch line 16d into the cylinder space 20a of the metering cylinder 20 until the piston 20 reaches its rear end position.
  • the operating lever 24 of the 2/2-way valve 21 must first be pushed into its open position to the left.
  • the remaining medium can now also escape from the cylinder space 15b of the hydraulic cylinder 14.
  • the metering cylinder 20 can also be emptied by the restoring action of the spring 20c with the 2/2-way valve 21 open.
  • this emptying process takes place only as long as the 2/2-way valve 21 is held in its open position by the operating lever 24 against the action of the return spring 23.
  • the 3/2-way valve 17 must first be brought into its right end position via the operating lever 18.
  • the pressure line 16a is then relieved of the hydraulic pressure, while on the other hand the pressure line 16b is acted upon by hydraulic pressure.
  • the pressure fluid then not only flows into the cylinder space 15b of the hydraulic cylinder 14 via the preload valve 22 and the branch line 16c, but it is also present via the branch line 16e at the rear of the piston 20b in the metering cylinder 20.
  • the piston 20b is advanced so far that the cylinder space 20a of the metering cylinder 20 assumes its smallest filling volume. The entire hydraulic system is now ready for a new operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Refuse-Collection Vehicles (AREA)

Abstract

For the purpose of collecting and disposing of waste material, refuse or the like, hinged containers 1 are used which have two half- shells 2a and 2b which are separated from one another by means of a bulkhead partition 8 and are interconnected in an articulated manner at their upper side along a swivel axis 3. A coupling and opening device comprising a suspended cross-member 6 which is arranged on the jib 7 of a crane and is provided with hydraulically actuated hooks serves to empty these hinged containers 1, said hooks being capable of engaging with hook-in elements 4a and 4b situated on both half-shells 2a and 2b. A hydraulic cylinder is connected to the hooks as actuator. So that the two half-shells 2a and 2b of the hinged container 1 can be successively emptied in an orderly manner by remote actuation, the hydraulic cylinder can be moved from its basic position into two different actuating positions, of which each corresponds to one of two different spreading positions of the half-shells 2a and 2b. The first actuating position of the hydraulic cylinder is determined by the metering cylinder of a metering unit, the filling volume of which corresponds to only a fraction of the filling volume of a cylinder space in the hydraulic cylinder. The second actuating position of the hydraulic cylinder can, by contrast, only be achieved after manual operation and opening of a relief valve. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Anhängen und Aufklappen von aus zwei Halbschalen bestehenden Klappbehältern, wie sie zum Sammeln bzw. zur Aufnahme und Entsorgung von Altmaterial, Müll oder dergleichen benutzt werden, bei welcher eine, insbesondere an einem Kranausleger anzuordnende, Hängetraverse nach unten vorstehende, hydraulisch betätigbare Haken hat, welche mit Einhakelementen an den beiden Halbschalen des Klappbehälters, die an dessen Oberseite längs einer Schwenkachse miteinander gelenkig verbunden sind, in Eingriff bringbar sind sowie an zumindest einem Horizontalträger der Hängetraverse geführt sind und oberhalb des Horizontalträgers ein Hydraulikzylinder angeordnet ist, der mit den Haken in Stellverbindung steht.The invention relates to a device for attaching and opening folding containers consisting of two half-shells, such as are used for collecting or for taking up and disposing of old material, garbage or the like, in which a hanging crosspiece projecting downwards, in particular to be arranged on a crane boom, has hydraulically actuated hooks, which can be brought into engagement with hooking elements on the two half-shells of the folding container, which are hingedly connected to one another along a swivel axis at the top, and are guided on at least one horizontal support of the suspension crossmember and a hydraulic cylinder is arranged above the horizontal support with the hook in connection.

Vorrichtungen dieser Art zum Anhängen und Aufklappen von Klappbehältern gehören bereits zum Stand der Technik, wie bspw. der EP-A-0 143 197 entnommen werden kann.Devices of this type for attaching and opening folding containers already belong to the prior art, as can be seen, for example, from EP-A-0 143 197.

Die an einem Kranausleger anzuordnende Hängetraverse hat nach unten vorstehende, hydraulisch betätigbare Haken, welche mit Einhakelementen an den beiden Halbschalen des Klappbehälter, die an dessen Oberseite längs einer Schwenkachse miteinander in Gelenkverbindung stehen, in Eingriff bringbar sind. Die Hängetraverse hat zwei horizontal zueinander verschiebliche Haken mit nach oben hin liegenden Hakenöffnungen, und die Einhakelemente sind oberseitig an den Halbschalen des Klappbehälters derart angeordnet, daß ihre Verbindungslinie auf einer oberhalb und im Abstand von der Schwenkachse der Halbschalen verlaufenden Horizontalebene liegt. Die Haken sind an zumindest einem Horizontalträger der Hängetraverse geführt und oberhalb des Horizontalträgers ist ein Hydraulikzylinder angeordnet, der mit seinem Zylindermantel mit dem einen Haken und mit seiner Kolbenstange mit dem anderen Haken verbunden ist.The hanging crossbar to be arranged on a crane boom has hydraulically actuated hooks that protrude downwards, which with Hooking elements on the two half-shells of the folding container, which are articulated on the upper side along a pivot axis, can be brought into engagement. The suspension crossmember has two horizontally displaceable hooks with hook openings lying upwards, and the hooking elements are arranged on the upper side of the half-shells of the folding container in such a way that their connecting line lies on a horizontal plane running above and at a distance from the pivot axis of the half-shells. The hooks are guided on at least one horizontal support of the suspension crossmember and a hydraulic cylinder is arranged above the horizontal support, which is connected with its cylinder jacket to one hook and with its piston rod to the other hook.

Ziel der Erfindung ist es, eine gattungsgemäße Vorrichtung zu schaffen, welche gewährleistet, daß die beiden Behälterabschnitte bzw. Halbschalen jedes Klappbehälters nacheinander durch Fernbetätigung, bspw. vom Fahrersitz des Entsorgungsfahrzeuges aus, ordnungsgemäß entleert werden können.The aim of the invention is to provide a generic device which ensures that the two container sections or half-shells of each folding container can be properly emptied in succession by remote control, for example from the driver's seat of the disposal vehicle.

Eine solche Vorrichtung zum Anhängen und Aufklappen von Klappbehältern ist erfindungsgemäß dadurch gekennzeichnet, daß der Hydraulikzylinder aus seiner der Schließstellung der beiden Halbschalen des Klappbehälters entsprechenden Grundstellung in zwei verschiedene Betätigungsstellungen bringbar ist, wobei durch die erste Betätigungsstellung eine erste Spreizstellung der beiden Halbschalen bestimmbar ist, während die zweite Betätigungsstellung einer erweiterten Spreizstellung der beiden Halbschalen sowie zugleich der Entriegelungsstellung einer zwischen den Halbschalen angeordnete Schottwand zugeordnet ist, daß dem in Richtung der Grundstellung mit Druckmittel beaufschlagbaren bzw. in Richtung der Betätigungsstellungen entlastbaren Zylinderraum des - doppelt wirkend ausgelegten - Hydraulikzylinders eine Zumeß-Einheit zugeordnet ist, die aus einem Zumeß-Zylinder, und parallel dazu einem manuell betätigbaren 2/2-Wegeventil sowie einem Vorspannventil besteht, daß dabei der Zumeß-Zylinder ein vorbestimmtes Füllvolumen hat und aus dem vorgenannten Zylinderraum des Hydraulikzylinders beaufschlagbar ist, daß das Vorspannventil ein lediglich zum vorgenannten Zylinderraum öffenbares Rückschlagventil ist, und daß das 2/2-Wegeventil selbsttätig in seiner Schließlage gehalten, aber manuell in seine Öffnungsstellung bringbar ist.Such a device for attaching and opening folding containers is according to the invention characterized in that the hydraulic cylinder can be brought from its basic position corresponding to the closed position of the two half-shells of the folding container into two different actuation positions, a first spreading position of the two half-shells being determinable by the first actuation position while the second actuation position of an expanded spreading position of the two half-shells and at the same time the unlocking position of a bulkhead arranged between the half-shells is associated with that in the direction of the basic position with pressure medium or in the direction the actuating positions relieved cylinder space of the - double-acting - hydraulic cylinder is assigned a metering unit, which consists of a metering cylinder, and parallel to it a manually operated 2/2-way valve and a preload valve, that the metering cylinder has a predetermined filling volume has and can be acted upon from the aforementioned cylinder chamber of the hydraulic cylinder that the biasing valve is a check valve that can only be opened to the aforementioned cylinder chamber, and that the 2/2-way valve is automatically held in its closed position but can be brought manually into its open position.

Eine solchermaßen ausgelegte, Zumeß-Einheit begrenzt bei in Schließlage befindlichem 2/2-Wegeventil über den Zumeß-Zylinder den Betätigungs-Stellweg des Hydraulikzylinders der Vorrichtung zum Anhängen und Aufklappen von Klappbehältern auf die erste Betätigungsstellung. Erst nach manuellem Öffnen des 2/2-Wegeventils kann hingegen dieser Hydraulikzylinder in seine zweite Betätigungsstellung weitergefahren werden. Das Zurückfahren des Hydraulikzylinders in seine Grundstellung erfolgt schließlich über das als Rückschlagventil ausgelegte Vorspannventil.When the 2/2-way valve is in the closed position, a metering unit designed in this way limits the actuating travel of the hydraulic cylinder of the device for attaching and opening folding containers to the first actuating position via the metering cylinder. However, this hydraulic cylinder can only be moved into its second actuation position after the 2/2-way valve has been opened manually. The hydraulic cylinder is finally returned to its basic position via the preload valve designed as a check valve.

Es ist weiterhin wichtig, daß die gesamte Zumeß-Einheit zwischen dem Hydraulikzylinder und einem selbsttätig in seiner Schließlage gehaltenen sowie manuell in zwei verschiedene Betätigungsstellungen bewegbaren 3/2-Wegeventil angeordnet ist.It is also important that the entire metering unit is arranged between the hydraulic cylinder and a 3/2-way valve which is automatically held in its closed position and manually movable in two different actuation positions.

Als wichtig hat es sich schließlich aber auch erwiesen, daß nach der Erfindung der Kolben des Zumeß-Zylinders entgegen seiner Füllrichtung unter Vorspannung gehalten und/oder mit Druckmittel beaufschlagbar ist, damit er sich über das in Öffnungsstellung gebrachte 2/2-Wegeventil wieder entleeren läßt, nachdem der Hydraulikzylinder seine zweite Betätigungsstellung erreicht hat.Finally, it has also proven to be important that, according to the invention, the piston of the metering cylinder is held under tension against its filling direction and / or can be pressurized so that it can be emptied again via the 2/2-way valve brought into the open position , after the Hydraulic cylinder has reached its second actuation position.

In der Zeichnung ist der Gegenstand der Erfindung in einem Ausführungsbeispiel dargestellt. Es zeigen

  • Figur 1 in Seitenansicht einen an einer Hängetraverse eines Kranauslegers angeordneten Klappbehälter in einer Spreiz- bzw. Öffnungsstellung zum Entleeren des linken Behälterabschnitts bzw. der linken Halbschale,
  • Figur 2 eine der Fig. 1 entsprechende Seitenansicht, jedoch in einer Spreiz- bzw. Öffnungslage des Klappbehälters für das Entleeren des rechten Behälterabschnitts bzw. der rechten Halbschale,
  • Figur 3 das Schaltschema eines Hydrauliksystems an einer Vorrichtung zum Anhängen und Aufklappen eines Klappbehälters, wie sie in den Fig. 1 und 2 der Zeichnung andeutungsweise gezeigt ist.
In the drawing, the object of the invention is shown in one embodiment. Show it
  • FIG. 1 shows a side view of a folding container arranged on a hanging cross member of a crane boom in an expanded or open position for emptying the left container section or the left half-shell,
  • 2 shows a side view corresponding to FIG. 1, but in a spread or open position of the folding container for emptying the right container section or the right half-shell,
  • 3 shows the circuit diagram of a hydraulic system on a device for attaching and opening a folding container, as indicated in FIGS. 1 and 2 of the drawing.

Die Zeichnung zeigt einen Klappbehälter 1, wie er insbesondere zum Sammeln bzw. zur Aufnahme und Entsorgung von Altmaterial, Müll oder dergleichen benutzt werden kann. Er besteht aus zwei Behälterabschnitten bzw. Halbschalen 2a und 2b, die an ihrer Oberseite über Gelenke 3 so miteinander verbunden sind, daß sich die Randkanten ihrer aneinander zugewendeten Öffnungsseiten entweder auf einer vertikalen Mittelebene dicht gegeneinander legen lassen oder aber um die Gelenke 3 keilförmig voneinander weggespreizt werden können, wie das besonders deutlich den Fig. 1 und 2 der Zeichnung entnommen werden kann.The drawing shows a folding container 1 as it can be used in particular for collecting or for receiving and disposing of old material, garbage or the like. It consists of two container sections or half-shells 2a and 2b, which are connected to one another at their upper side via joints 3 in such a way that the marginal edges of their mutually facing opening sides can either be placed close together on a vertical central plane or else spread apart in a wedge shape around the joints 3 can be, as can be seen particularly clearly in FIGS. 1 and 2 of the drawing.

Jeder Behälterabschnitt bzw. jede Halbschale 2a und 2b des Klappbehälters 1 weist an seiner bzw. ihrer Oberkante seitwärts und in der Höhe versetzt zur Achse der Gelenke 3 ein Einhakelement 4a bzw. 4b auf, mit dem sich je ein kraftantreibbarer Haken 5a bzw. 5b wahlweise kuppeln oder entkuppeln läßt. Die kraftantreibbaren Haken 5a und 5b sind dabei an einer Hängetraverse 6 verschiebbar geführt, die wiederum von einem Kranausleger 7, bspw. an einem Entsorgungsfahrzeug, getragen wird.Each container section or each half-shell 2a and 2b of the folding container 1 has a hooking element 4a or 4b on its or its upper edge laterally and vertically offset from the axis of the joints 3, with which a power-driven hook 5a or 5b can be selected can couple or uncouple. The power-driven hooks 5a and 5b are slidably guided on a suspension cross member 6, which in turn is carried by a crane boom 7, for example on a disposal vehicle.

Wenn die kraftangetriebenen Haken 5a und 5b der Hängetraverse 6 mit den Einhakelementen 4a und 4b an beiden Behälterabschnitten bzw. Halbschalen 2a und 2b des Klappbehälters gekuppelt sind, kann der Klappbehälter 1 einerseits über den Kranausleger 7 angehoben werden. Andererseits lassen sich dabei die Haken 5a und 5b durch den Kraftantrieb an der Hängetraverse 6 so relativ zueinander verschieben, daß die beiden Behälterabschnitte bzw. Halbschalen 2a und 2b des Klappbehälters 1 um die Achsen der sie miteinander verbindenden Gelenke 3 zwangsläufig relativ zueinander winkelverlagert werden können. In der geschlossenen Grundstellung des Klappbehälters 1 liegen dabei die Öffnungsränder der beiden Behälterabschnitte bzw. Halbschalen 2a und 2b auf einer Vertikalebene dicht aneinander, so daß der Klappbehälter 1 in sich geschlossen ist. Zum Öffnen des Klappbehälters 1 können dessen Behälterabschnitte bzw. Halbschalen 2a und 2b aber auch um ihre Gelenke 3 keilförmig voneinander weg gespreizt werden, wobei eine erste Spreizlage in Fig. 1 sowie eine zweite Spreizlage in Fig. 2 der Zeichnung zu sehen ist.When the power-driven hooks 5a and 5b of the suspension cross member 6 are coupled to the hooking elements 4a and 4b on both container sections or half-shells 2a and 2b of the folding container, the folding container 1 can be lifted on the one hand via the crane boom 7. On the other hand, the hooks 5a and 5b can be displaced relative to one another by the power drive on the suspension crossmember 6 such that the two container sections or half-shells 2a and 2b of the folding container 1 can inevitably be displaced in angle relative to one another about the axes of the joints 3 connecting them. In the closed basic position of the folding container 1, the opening edges of the two container sections or half-shells 2a and 2b lie close together on a vertical plane, so that the folding container 1 is closed in itself. To open the folding container 1, its container sections or half-shells 2a and 2b can also be spread apart in a wedge shape around their joints 3, with a first spreading position in FIG. 1 and a second spreading position in FIG. 2 of the drawing.

Die Besonderheit des in der Zeichnung dargestellten Klappbehälters 1 liegt darin, daß zwischen den Öffnungsseiten der beiden Behälterabschnitte bzw. Halbschalen 2a und 2b eine zusätzliche Schottwand 8 angeordnet ist, die sich in ihrer Schließlage an bzw. vor der Öffnungsseite eines der Behälterabschnitte bzw. einer der Halbschalen 2a, 2b beim gezeigten Ausführungsbeispiel nämlich an bzw. vor derjenigen des Behälterabschnitts bzw. der Halbschale 2b verriegeln läßt.The peculiarity of the folding container 1 shown in the drawing is that an additional bulkhead 8 is arranged between the opening sides of the two container sections or half-shells 2a and 2b, which is in its closed position or in front of the opening side of one of the container sections or one of the half-shells 2a, 2b in the embodiment shown can be locked on or in front of that of the container section or half-shell 2b.

In ihrer Verriegelungsstellung nimmt dabei die Schottwand 8 wenigstens annähernd Parallellage zum Öffnungsrand des Behälterabschnitts bzw. der Halbschale 2b ein, wie dies deutlich den Fig. 1 und 2 der Zeichnung zu entnehmen ist.In its locking position, the bulkhead 8 assumes at least approximately parallel position to the opening edge of the container section or the half-shell 2b, as can be clearly seen in FIGS. 1 and 2 of the drawing.

Die Schottwand 8 ist als eine Hub-Schwenkwand ausgebildet, welche an ihrem unteren Ende Rastklauen 9 trägt, die sich jeweils hinter Widerlagern am unteren Ende der Öffnungsseite des Behälterabschnitt bzw. der Halbschale 2b entriegeln lassen.The bulkhead 8 is designed as a lifting and pivoting wall, which at its lower end carries latching claws 9, which can be unlocked behind abutments at the lower end of the opening side of the container section or the half-shell 2b.

Das obere Ende der Schottwand 8 trägt eine Gelenkachse 10, die in Schiebeführungen läuft, die am oberen Ende des Behälterabschnitts bzw. der Halbschale 2b angeordnet sind und sich etwa parallel zur Öffnungsebene desselben bzw. derselben erstreckt. Die Schiebeführungen für die Gelenkachse 10 können dabei aus Schlaufen bestehen. Die Länge der Schiebeführungen wird dabei so bemessen, daß sie wenigstens geringfügig größer sind, als die Eingriffstiefe der Rastklauen 9 hinter den Widerlagern.The upper end of the bulkhead 8 carries a hinge axis 10 which runs in sliding guides which are arranged at the upper end of the container section or the half-shell 2b and which extends approximately parallel to the opening plane or the same. The sliding guides for the hinge axis 10 can consist of loops. The length of the sliding guides is dimensioned such that they are at least slightly larger than the depth of engagement of the locking claws 9 behind the abutments.

Mit seitlichen Abstand von den Gelenken 3 sowie an Stellen die ständig unterhalb der Gelenke 3 liegen, ist mit jedem der beiden Behälterabschnitte bzw. jeder der beiden Halbschalen 2a und 2b mindestens eine Zugmittelschlaufe 12, bspw. ein Stahlseil oder eine Kette, fest verbunden.At a lateral distance from the joints 3 and at locations which are always below the joints 3, at least one traction means loop 12, for example a steel cable or a chain, is firmly connected to each of the two container sections or each of the two half-shells 2a and 2b.

In den Fig. 1 und 2 der Zeichnung ist noch angedeutet, daß die kraftangetriebenen Haken 5a und 5b der Hängetraverse 6 durch einen Kraftantrieb, bspw. einen doppelt wirkenden Hydraulikzylinder 14 längs dem Horizontalträger der Hängetraverse 6 verschoben werden können. Zu diesem Zweck kann der Hydraulikzylinder 14 zwischen einer Grundstellung, welche der ordnungsgemäßen Schließstellung des Klappbehälters 1 zugeordnet ist, sowie zwei verschiedenen Betätigungsstellungen, die wiederum unterschiedlichen Spreiz- bzw. Öffnungsstellungen des Klappbehälters 1 zugeordnet sind, verlagert werden. Die erste Betätigungsstellung des Hydraulikzylinders 14 ist dabei in Fig. 1 der Zeichnung zu sehen, während die zweite Betätigungsstellung desselben aus Fig. 2 der Zeichnung hervorgeht.1 and 2 of the drawing it is indicated that the Power-driven hooks 5a and 5b of the suspension crossmember 6 can be moved along the horizontal support of the suspension crossmember 6 by a power drive, for example a double-acting hydraulic cylinder 14. For this purpose, the hydraulic cylinder 14 can be shifted between a basic position, which is assigned to the correct closed position of the folding container 1, and two different actuation positions, which in turn are assigned to different spreading or opening positions of the folding container 1. The first actuation position of the hydraulic cylinder 14 can be seen in FIG. 1 of the drawing, while the second actuation position thereof can be seen in FIG. 2 of the drawing.

Vorzugsweise greift der Hydraulikzylinder 14 mit seiner Kolbenstange 14a am Haken 5a und mit seinem Zylindergehäuse 14b am Haken 5b an, um das Öffnen und Schließen des Klappbehälters 1 zu bewirken.The hydraulic cylinder 14 preferably engages the hook 5a with its piston rod 14a and the hook 5b with its cylinder housing 14b in order to bring about the opening and closing of the folding container 1.

Wenn der Klappbehälter 1 aus einer der Fig. 1 entsprechenden Spreiz- bzw. Öffnungsstellung in die der Fig. 2 entsprechende - größere - Spreiz- bzw. Öffnungsstellung bewegt wird, gelangt auch die Schottwand 8 mit den Widerlagern am Behälterabschnitt bzw. an der Halbschale 2b außer Eingriff. Sie bewegt sich unter der Wirkung ihres Eigengewichtes in die aus Fig. 2 ersichtliche Hängelage und ermöglicht dadurch das selbsttätige Entleeren des zweiten Behälterabschnitts bzw. der Halbschale 2b.When the folding container 1 is moved from a spreading or opening position corresponding to FIG. 1 into the - larger - spreading or opening position corresponding to FIG. 2, the bulkhead 8 also arrives with the abutments on the container section or on the half-shell 2b disengaged. It moves under the effect of its own weight into the hanging position shown in FIG. 2 and thereby enables the second container section or the half-shell 2b to be emptied automatically.

In Fig. 3 der Zeichnung ist zu sehen, daß der Hydraulikzylinder 14 als doppelt wirkender Zylinder ausgelegt ist, wobei der eine Zylinderraum 15a über eine Druckmittelleitung 16a beaufschlagbar ist, während der andere Zylinderraum 15b über eine Druckmittelleitung 16b mit Druckmittel beliefert werden kann.In Fig. 3 of the drawing it can be seen that the hydraulic cylinder 14 is designed as a double-acting cylinder, one cylinder space 15a can be acted upon via a pressure medium line 16a, while the other cylinder space 15b via a pressure medium line 16b can be supplied with pressure medium.

Den Druckmittelleitungen 16a und 16b ist ein 3/2-Wegeventil 17 zugeordnet, das selbsttätig - z. B. durch Federkraft - in seiner mittleren Absperrstellung gehalten wird. Durch eine Bedienungshandhabe 18 läßt es sich jedoch aus seiner mittleren Absperrstellung in zwei zueinander entgegengesetzte Betätigungsstellungen bringen. In der nach links geschobenen Betätigungsstellung wird dabei die Druckmittelleitung 16a für den Zylinderraum 15a mit Druckmittel beaufschlagt, während gleichzeitig die Druckmittelleitung 16b entlastet ist. In der nach rechts geschobenen Betätigungsstellung des 3/2-Wegeventils 17 wird hingegen die Druckmittelleitung 16 mit Druckmittel beaufschlagt, während die Druckmittelleitung 16a entlastet ist.The pressure medium lines 16a and 16b is assigned a 3/2-way valve 17 which automatically - for. B. by spring force - is held in its central shut-off position. By means of an operating handle 18, however, it can be brought from its central shut-off position into two opposite actuation positions. In the actuation position shifted to the left, the pressure medium line 16a for the cylinder space 15a is acted upon by pressure medium, while the pressure medium line 16b is relieved at the same time. In the actuated position of the 3/2-way valve 17 pushed to the right, however, pressure medium line 16 is acted upon by pressure medium, while pressure medium line 16a is relieved.

In die zum Zylinderraum 15b des Hydraulikzylinders 14 führende Druckmittelleitung 16b ist eine Zumeß-Einheit 19 eingeschaltet, welche im wesentlichen drei Funktionskomponenten umfaßt, nämlich einen Zumeß-Zylinder 20, ein 2/2-Wegeventil 21 sowie ein Vorspannventil 22.In the pressure medium line 16b leading to the cylinder space 15b of the hydraulic cylinder 14, a metering unit 19 is connected, which essentially comprises three functional components, namely a metering cylinder 20, a 2/2-way valve 21 and a biasing valve 22.

Das 2/2-Wegeventil 21 wird selbsttätig, z. B. durch die Wirkung einer Vorspannfeder 23, in seiner Absperrstellung gehalten und kann durch einen Bedienungshebel 24 manuell, entgegen der Wirkung der Feder 23, in seine Öffnungsstellung gebracht werden.The 2/2-way valve 21 is automatically, for. B. by the action of a biasing spring 23, held in its shut-off position and can be brought into its open position manually by an operating lever 24, against the action of the spring 23.

Das Vorspannventil 22, welches bspw. einen Einstelldruck von etwa 20 bar hat, liegt so als Rückschlagventil in einem Leitungszweig 16c zur Druckleitung 16b, daß es lediglich in Strömungsrichtung zum Zylinderraum 15b hin öffenbar ist. Bei in Schließlage befindlichem 2/2-Wegeventil 21 kann von der Druckmittelleitung 16b her der Zylinderraum 15b also nur über die Zweigleitung 16b und das darin angeordnete Vorspannventil 22 beaufschlagt werden, damit der Hydraulikzylinder 14 in seine Grundstellung gelangt.The preload valve 22, which has, for example, a set pressure of approximately 20 bar, is located as a check valve in a line branch 16c to the pressure line 16b in such a way that it can only be opened in the flow direction to the cylinder space 15b. When the 2/2-way valve 21 is in the closed position, the cylinder space 15b can thus only come from the pressure medium line 16b via the branch line 16b and so on bias valve 22 arranged therein are acted upon so that the hydraulic cylinder 14 reaches its basic position.

Der Zylinderraum 20a des Zumeß-Zylinders 20 steht mit dem Zylinderraum 15b des Hydraulikzylinders 14 ständig über eine Stichleitung 16d in Verbindung. Sein maximales Füllvolumen entspricht dabei einem Bruchteil des maximalen Füllvolumens für den Zylinderraum 15b. Nach hinten ist der Zylinderraum 20a des Zumeß-Zylinders 20 durch einen Kolben 20b abgeschlossen, welcher, bspw. durch eine Feder 20c, im Sinne einer Verkleinerung des Füllvolumens für den Zylinderraum 20 unter Vorspannung gesetzt ist. Darüberhinaus führt in den die Feder 20c enthaltenden Zylinderraum des Zumeß-Zylinders 20 auch noch eine Stichleitung 16e der Druckleitung 16b, so daß ein sich hier aufbauender Hydraulikdruck die Wirkung der Feder 20c unterstützen kann.The cylinder space 20a of the metering cylinder 20 is in constant communication with the cylinder space 15b of the hydraulic cylinder 14 via a spur line 16d. Its maximum filling volume corresponds to a fraction of the maximum filling volume for the cylinder space 15b. To the rear, the cylinder space 20a of the metering cylinder 20 is closed off by a piston 20b, which, for example by a spring 20c, is pretensioned in the sense of a reduction in the filling volume for the cylinder space 20. In addition, a branch line 16e of the pressure line 16b also leads into the cylinder space of the metering cylinder 20 containing the spring 20c, so that a hydraulic pressure building up here can support the action of the spring 20c.

Wird das 3/2-Wegeventil 17 in seine nach links geschobene Betätigungsstellung gebracht, dann gelangt die Druckleitung 16a unter Druckmitteldruck, während die Druckleitung 16b entspannt wird. Das in den Zylinderraum 15a einströmende Druckmittel verschiebt dabei den von der Kolbenstange 14a getragenen Kolben des Hydraulikzylinders 14 von links nach rechts, wobei das im Zylinderraum 15b befindliche Medium hieraus über die Druckleitung 16b verdrängt wird. Da sich das 2/2-Wegeventil 21 in seiner Sperrstellung befindet und das Vorspannventil 22 als Rückschlagventil wirkt, kann das Medium aus dem Zylinderraum 15b nur über die Druckleitung 16b und die Stichleitung 16d in den Zylinderraum 20a des Zumeß-Zylinders 20 verdrängt werden, bis der Kolben 20 in seine hintere Endstellung gelangt. Sobald das Gesamtvolumen des Zylinderraums 20a im Zumeß-Zylinder 20 gefüllt ist, wird die Bewegung des die Kolbenstange 14a tragenden Kolbens im Hydraulikzylinder 14 gestoppt, wobei dessen erste Betätigungsstellung erreicht ist, welche mit der Betätigungsstellung nach Fig. 1 der Zeichnung übereinstimmt.If the 3/2-way valve 17 is brought into its actuation position shifted to the left, then the pressure line 16a comes under pressure medium pressure, while the pressure line 16b is relaxed. The pressure medium flowing into the cylinder space 15a displaces the piston of the hydraulic cylinder 14 carried by the piston rod 14a from left to right, the medium located in the cylinder space 15b being displaced therefrom via the pressure line 16b. Since the 2/2-way valve 21 is in its blocking position and the preload valve 22 acts as a check valve, the medium can only be displaced from the cylinder space 15b via the pressure line 16b and the branch line 16d into the cylinder space 20a of the metering cylinder 20 until the piston 20 reaches its rear end position. As soon as the total volume of the cylinder space 20a in the metering cylinder 20 is filled, the movement of the piston carrying the piston rod 14a in the hydraulic cylinder 14 is stopped, with its first actuation position is reached, which corresponds to the actuating position of FIG. 1 of the drawing.

Soll daran anschließend der Hydraulikzylinder 14 in die der Fig. 2 entsprechende Betätigungsstellung gelangen, dann muß zunächst über den Bedienungshebel 24 des 2/2-Wegeventil 21 in seine Öffnungsstellung nach links geschoben werden. Nunmehr kann auch das restliche Medium aus dem Zylinderraum 15b des Hydraulikzylinders 14 entweichen. Sobald der die Kolbenstange 14a tragende Kolben im Hydraulikzylinder 14 seine hintere Endstellung erreicht hat, welche der zweiten Betätigungsstellung entspricht, kann auch der Zumeß-Zylinder 20 durch die Rückstellwirkung der Feder 20c bei geöffnetem 2/2-Wegeventil 21 entleert werden. Dieser Entleerungsvorgang findet jedoch nur so lange statt, wie das 2/2-Wegeventil 21 durch den Bedienungshebel 24 entgegen der Wirkung der Rückstellfeder 23 in seiner Öffnungslage gehalten wird.If the hydraulic cylinder 14 is then to reach the actuation position corresponding to FIG. 2, then the operating lever 24 of the 2/2-way valve 21 must first be pushed into its open position to the left. The remaining medium can now also escape from the cylinder space 15b of the hydraulic cylinder 14. As soon as the piston carrying the piston rod 14a in the hydraulic cylinder 14 has reached its rear end position, which corresponds to the second actuation position, the metering cylinder 20 can also be emptied by the restoring action of the spring 20c with the 2/2-way valve 21 open. However, this emptying process takes place only as long as the 2/2-way valve 21 is held in its open position by the operating lever 24 against the action of the return spring 23.

Soll der Hydraulikzylinder 14 wieder in seine Grundstellung zurückgeführt werden, dann muß zunächst über den Bedienungshebel 18 das 3/2-Wegeventil 17 in seine rechte Endstellung gebracht werden. Es wird dann die Druckleitung 16a vom Hydraulikdruck entlastet, während andererseits die Druckleitung 16b mit Hydraulikdruck beaufschlagt wird. Die Druckflüssigkeit strömt dann nicht nur über das Vorspannventil 22 und die Zweigleitung 16c in den Zylinderraum 15b des Hydraulikzylinders 14, sondern sie steht auch über die Stichleitung 16e an der Rückseite des Kolbens 20b im Zumeß-Zylinder 20 an. Hierdurch wird der Kolben 20b so weit vorgeschoben, daß der Zylinderraum 20a des Zumeß-Zylinders 20 sein kleinstes Füllvolumen einnimmt. Nunmehr ist das gesamte Hydrauliksystem wieder für einen neuen Arbeitsvorgang bereit.If the hydraulic cylinder 14 is to be returned to its basic position, then the 3/2-way valve 17 must first be brought into its right end position via the operating lever 18. The pressure line 16a is then relieved of the hydraulic pressure, while on the other hand the pressure line 16b is acted upon by hydraulic pressure. The pressure fluid then not only flows into the cylinder space 15b of the hydraulic cylinder 14 via the preload valve 22 and the branch line 16c, but it is also present via the branch line 16e at the rear of the piston 20b in the metering cylinder 20. As a result, the piston 20b is advanced so far that the cylinder space 20a of the metering cylinder 20 assumes its smallest filling volume. The entire hydraulic system is now ready for a new operation.

Claims (4)

  1. A mechanism for suspending and opening hinged containers (1) which
       consist of pairs of half-shells (2a, 2b) for collecting or receiving and disposing of scrap material, refuse or the like, the said mechanism having a hanger crossbar (6) which may be arranged on a crane jib (7) and has hydraulically actuable hooks (5a and 5b) projecting downwards which may be brought into engagement with hook-on members (4a and 4b) on the pair of half-shells (2a, 2b) which are connected together in a hinge at the top by a pivotpin (3), the said hooks being carried on a horizontal bearer of the hanger crossbar (6) whilst a hydraulic cylinder (14) which is connected to the hooks (5a and 5b) for positioning them is arranged above the horizontal bearer as a power drive,
    characterized in that
    the hydraulic cylinder (14) may be brought from its normal position corresponding with the closed position of the pair of half-shells (2a, 2b) of the hinged container (1) into two different positions of actuation, whereby a first spread position of the pair of half-shells (2a, 2b) may be determined by the first position of actuation, whilst the second position of actuation is associated with a more widely spread position of the pair of half-shells (2a, 2b) as well as with the unlocking position of a partition (8) arranged between the half-shells, that there is associated with the cylindrical space (15b) in the hydraulic cylinder (14), which is acted upon by pressure medium in the direction of the normal position or may be unloaded in the direction of the positions of actuation, a proportioning unit (19) which consists of a proportioning cylinder (20) and in parallel with it a manually actuable 2/2-way valve (21) as well as a prestress valve (22), that at the same time the proportioning cylinder (20) has a predetermined volume of fill (20a) and may be acted upon (16b, 16d) from the cylindrical space (15b), that the prestress valve (22) is a non-return valve which may be opened merely to the cylindrical space (15b), and that the 2/2-way valve (21) is held automatically (23) in its closed position but may be brought manually (24) into its open position.
  2. A mechanism as in Claim 1,
       characterized in that
    the whole proportioning unit (19) is arranged between the hydraulic cylinder (14) and a 3/2-way valve (17) which is held automatically in its closed position but may be moved manually (18) into two different positions of actuation.
  3. A mechanism as in one of the Claims 1 and 2,
    characterized in that
    the piston (20b) of the proportioning cylinder (20) is held under prestress (20c) against its direction of fill and/or may be acted upon by pressure medium (16b, 16e).
  4. A mechanism as in Claim 1,
       characterized in that
    the hydraulic cylinder (14) engages by its piston rod (14a) with one hook (5a) and by its cylinder housing (14b) with the other hook (5b) of the hanger crossbar (6).
EP91116090A 1988-04-19 1989-04-18 Device for picking-up and opening hinged containers Expired - Lifetime EP0467419B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP91116090A EP0467419B1 (en) 1988-04-19 1989-04-18 Device for picking-up and opening hinged containers
AT91116090T ATE86581T1 (en) 1988-04-19 1991-09-21 DEVICE FOR ATTACHING AND OPENING FOLDING CONTAINERS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE8805173U 1988-04-19
DE8805173U DE8805173U1 (en) 1988-04-19 1988-04-19 Folding container
EP91116090A EP0467419B1 (en) 1988-04-19 1989-04-18 Device for picking-up and opening hinged containers

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP89106891.8 Division 1989-04-18

Publications (2)

Publication Number Publication Date
EP0467419A1 EP0467419A1 (en) 1992-01-22
EP0467419B1 true EP0467419B1 (en) 1993-03-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116090A Expired - Lifetime EP0467419B1 (en) 1988-04-19 1989-04-18 Device for picking-up and opening hinged containers

Country Status (2)

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EP (1) EP0467419B1 (en)
AT (1) ATE86581T1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ543945A (en) * 2003-05-22 2008-10-31 James Crispian Garth Trace Stackable skips
CN107758056A (en) * 2017-10-30 2018-03-06 江阴方圆环锻法兰有限公司 A kind of material carrying case

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804954A1 (en) * 1978-02-06 1979-08-09 Ludmann Gmbh & Co Kg Karl Multichamber refuse container - has separate hinging floor for each chamber with actuating mechanism for independent operation
DE8325137U1 (en) * 1983-09-01 1983-12-08 Fa. Heinz Grumbach, 4834 Harsewinkel ARRANGEMENT FOR OPERATING A FOLDING CONTAINER
DE3403824A1 (en) * 1984-02-03 1985-08-14 Lothar 3304 Wendeburg Rühland COLLECTIBLE FOR REUSABLE COLLECTIBLES

Also Published As

Publication number Publication date
EP0467419A1 (en) 1992-01-22
ATE86581T1 (en) 1993-03-15

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