WO1997034778A1

WO1997034778A1 - Vehicle-mounted device for loading and unloading interchangeable load bodies

Info

Publication number: WO1997034778A1
Application number: PCT/EP1997/001228
Authority: WO
Inventors: Friedhelm Schneider; Rudolf Melles
Original assignee: Georg, Edgar
Priority date: 1996-03-16
Filing date: 1997-03-11
Publication date: 1997-09-25
Also published as: DE29604947U1; EP0837791A1

Abstract

The invention concerns a vehicle-mounted device for loading and unloading interchangeable load bodies, in particular collection containers, the device having a lifting frame (7) divided into two parts by an articulation shaft (10) which runs at right angles to the longitudinal axis of the vehicle. The lifting frame extends under the interchangeable load body (15) and is driven to pivot by a drive unit (12) mounted on the vehicle chassis (6). The rear part (8) of the lifting frame is articulated on the vehicle chassis with a tilt shaft (9) and the front part (11) of the frame is equipped with a sliding element which is connected to a drive and fitted with an arm (13) whose far ends has a hook (14) which can be inserted in an eye (16) located on the face of the interchangeable load body (15) to be loaded or unloaded, slightly above the base of the body (15).

Description

Description: Device on a vehicle for picking up and setting down swap bodies

description

DE-B-21 44 562 describes a device on a truck for loading and unloading or tipping a container, which is also known under the name "hook lift". This device has a tilting and supporting frame which is pivotably mounted about a transverse axis fixedly arranged on the rear of the vehicle. On this tilting and supporting frame, pivotable guide rails are articulated about an axis aligned parallel to the fixed transverse axis, which enable the received container to be displaced in the longitudinal direction of the vehicle. To pick up and set down the container, an angled gripper arm is arranged on the guide rails, which has a hook arrangement at its free end. The angled part of the gripping arm points vertically upwards during driving operation and is directed downwards during the pick-up process of the container standing on the floor behind the vehicle, so that a gripping eye arranged on the upper edge of the front side of the container can be grasped. The disadvantage of this known hook lift is that the angled gripper arm part is arranged in operation between the front wall of the container and the rear of the cab, so that there is no possibility of accommodating additional units in this area, such as a pressing device with a hopper or the like.

DE-A-16 80 152 also describes a device which has a lifting arm articulated on the vehicle frame, which is provided at its free end with a bent gripping hook and which is effective by a swivel angle of almost 180 ° in the longitudinal direction of the vehicle with the help of two in succession becoming hydraulic cylinder is pivotable. The swivel geometry in connection with the dimensions of the container to be accommodated is designed so that a gripping eye can be arranged on the front wall of the container in the region of its lower edge. Due to the deep arrangement of the gripping eye on the container, the offset of the gripping hook on the lifting arm must be relatively large in order to be able to grasp a container standing on the floor behind the vehicle with the lifting arm and to be able to pull it onto the vehicle. Horizontal displacements of the container on the vehicle are not possible with this system.

The invention has for its object to provide a device of a similar type, which allows swap bodies to be mounted on and placed on a vehicle, which have a gripping eye arranged at a short distance above the ground, and which is designed such that the

The space between the rear of the driver's cab and the front of the interchangeable superstructure is free and is available for other superstructures.

This object is achieved for vehicles for picking up and setting down swap bodies, in particular collecting containers, with a tilting frame which is divided by a folding axis extending transversely to the longitudinal direction of the vehicle, which runs under the swap body to be picked up and can be pivoted via a swivel drive connected to the vehicle frame and its rear tilting part is articulated on the vehicle frame via a tilting axis and the front bent part of which is provided with a sliding part which is connected to a sliding drive and which is provided with an extended arm part, the free end of which has a gripping hook which is connected to one on the front side of the one to be handled Swap body can be connected at a small distance above the standing level of the swap body. Such a device has the advantage that the entire swiveling process for picking up and setting down the swap body on the one hand and, on the other hand, any desired tilting of a swap body designed as a collecting container with a swiveling drive, for example in the form of a simple or in pair¬ designed hydraulic piston-cylinder unit can be carried out. A swap body mounted on the tilting frame lying flat on the vehicle can then be pushed against the rear wall of the cab using the sliding drive or pulled off the rear wall of the cab by a corresponding amount, the extended arm part running below the standing level of the swap body and only the one with the Gripping hooks connected to the gripping hook slightly overlap the stand level. This has the advantage that, depending on the design of the vehicle, the front wall of the swap body can either be pushed as close as possible to the rear wall of the cab or, when arranging additional equipment on the vehicle in the area immediately behind the rear wall of the cab, such as supports for swivel arm arrangements, arrangements of overhead loading systems , Filling and compression device, can be pushed towards this. In particular in the case of the arrangement of filling and compression systems, this provides the possibility of bringing an end-side filling opening of an interchangeable structure designed as a container to the filling opening of the filling system and "docking" in a sealing manner.

In an advantageous embodiment of the invention it is provided that the swivel drive is designed as a hydraulic cylinder and is articulated on the articulated part of the tilting frame. This arrangement has the advantage that the entire swiveling range of the articulated part can be carried out from the receiving position for the interchangeable body behind the vehicle until it rests on the tilting frame with a single or a pair of straight-running hydraulic cylinders.

In an advantageous further embodiment of the invention it is provided that locking means are provided for locking the articulated part and the tilting part in the extended position. Such locking means make it possible to connect to the articulated part of the articulated frame. which swivel drive the tipping frame as a whole around in

Swing up the tilt axis arranged in the area of the vehicle rear so that, for example, when containers are used as an interchangeable body, such containers can be emptied directly from the vehicle. The locking can take place via separate, for example hydraulically actuated locking means between the bent part and the tilting part. However, it is also possible by the arrangement of sliding hooks on the articulated part and / or on the tilting part, which engage in corresponding eyelets on the swap body in the end position on the tilting part, so that even the knuckle part and tilting part are locked in the extended position via the swap body.

In a further advantageous embodiment of the invention, it is provided that the tilting part is provided with a stop for limiting the swiveling movement of the bent part and as a driver for pivoting the tilted part after unlocking the bent part and the tilting part. This design offers the possibility of swiveling up the tilting part with an extended arm part after swiveling the articulated part up to the stop without additional swiveling drives, so that the gripping hook swivels to the floor behind the vehicle and one grips on the floor with the gripping eye the swap body can be connected.

In another advantageous embodiment of the invention it is provided that the extended arm part is pivotally connected to the articulated part and that a swivel drive is provided for pivoting the arm part from the extended position into a position angled relative to the articulated part. Due to the pivotable design of the elongated arm part, it is also possible to hold a swap body in the transport position with the arm part lying flat on the vehicle and also to carry out the short displacements that may be necessary for docking the swap body to additional devices. If the interchangeable bodies have a gripping eyelet which is arranged only a short distance above the standing level of the interchangeable body, then one embodiment of the invention provides that means are provided for releasing the connection between the gripping hook and the gripping eyelet. In this case, the interchangeable structure has two gripping eyes on its end face, namely the gripping eye arranged only a short distance above the floor surface and a second gripping eye arranged at the usual distance in the upper region of the end wall. To pick up the swap body onto the vehicle, the gripping hook first engages in the gripping eyelet at the top, so that the swiveling part can be picked up and placed on the tilting frame by pivoting the articulated part. Then the gripping hook is released and the arm part swiveled backwards into the horizontal position and then brought into connection with the gripping eye below, so that the interchangeable body can then be moved to the end position via the sliding part. Settling then takes place in the reverse order.

In an expedient embodiment of the invention it is provided here that the means for releasing the connection between the gripping hook and gripping eye are formed by lifting elements which raise the interchangeable structure relative to the receiving plane of the tilting frame.

The invention is explained in more detail with reference to schematic drawings of exemplary embodiments. Show it:

1 to 5 a first embodiment in sequence of the functional sequence,

6 to 11 a second embodiment in

Sequence of operations. The first exemplary embodiment shown in FIG. 1 shows a vehicle 1, behind whose driver's cab 2 a filling and compression device 3 is arranged. The filling and compression device has an upwardly open hopper 4 which opens into the compression chamber of a press, the discharge opening 5 of which is open horizontally to the rear. The vehicle 1 is provided with a loading device, not shown here, through which waste containers can be picked up from the earth and can be emptied into the hopper 4 of the filling and compacting device 3 by means of a pivoting process.

A tilting frame 7 is arranged on the vehicle frame 6 of the vehicle 1. The tilting frame 7 is constructed in two parts and has a tilting part 8 which can be pivoted about a tilting axis 9 arranged on the vehicle frame. At the other end of the tilting part 8 there is a kink axis 10, via which a kinking part 11 is articulated on the tilting part 8. A pivot drive 12 in the form of at least one hydraulic cylinder, which is articulated on the vehicle frame 6, is arranged with the bent part 11. Between the tilting part 8 and the articulated part 11, a stop (not shown here in more detail) is provided, by means of which the pivoting path of the articulated part 11 relative to the tilting part 8 is limited and which acts as a driver, so that the pivot drive articulated on the articulated part 11

12, the tilting part 8 can also be pivoted into the receiving position shown in FIG. 1.

An elongated arm part 13 is slidably mounted in the bent part 11 and is connected to its own sliding drive, for example in the form of a hydraulic cylinder. The free end of the elongated arm part 13 is provided with a gripping hook 14, which is designed such that, in the receiving position shown, it can engage in a gripping eye 16 arranged on an interchangeable structure 15 to be received, for example in the form of a collecting container. The Gripping eyelet 16 is arranged at a short distance above the level of the interchangeable body 15.

As soon as the gripping hook 14 has gripped the gripping eye 16, the tilting frame 7 is pivoted back via the pivot drive 12, as shown in FIG. 2, the tilting part 8 first being pivoted into the flat-lying position shown in FIG. 2, the interchangeable body 15 is raised accordingly with its front end. In the event of a further retraction, the articulated part 11 is then also pivoted about the articulated axis 10 into the horizontal position in the direction of the driver's cab, so that at the end of this pivoting movement the swap body 15 assumes the position shown in FIG. 3. The stretched arm part 13 with its gripping hook 14 is pulled back here by the sliding drive.

From the intermediate position shown in FIG. 3, the stretched arm part 13 is now advanced in the direction of the driver's cab 2 via the sliding drive, so that the interchangeable body 15, here a collecting container, with a filling opening arranged in the end wall in the direction of the opening 5 the filling and compression device advanced and "docked" to this. In this docked position, the locking hooks 17 shown in FIG. 3 engage in corresponding holding elements on the interchangeable structure 15 and thus bring about a longitudinally rigid connection between the filling and compacting device 3 on the one hand and the interchangeable structure 15 designed as a container on the other, so that substances to be loaded, for example waste materials, can be inserted into the container in a compacting manner via the filling and compacting device 3, the reaction forces between the filling device and the container being absorbed via the locking hooks 17. The tilting frame, in particular the sliding drive for the extended arm part, is not claimed by this. The swap body is then removed from the in

Fig. 4 shown driving position in reverse order.

By means of a corresponding locking on the tilting frame 7, by means of which the tilting part 8 and the bent part 11 can be locked together in the extended position and thus form a rigid tilting frame, it is then possible, as shown in FIG. 5, for example to pick up a collecting container by swiveling it up to empty the tilting frame 7 in a conventional manner via the swivel drive 12. These locking means can be designed as separate elements, for example locking bolts which can be actuated via hydraulic cylinders. However, it is also possible to provide a hook arrangement which is open to the rear on the buckling part 11 or the tilting part 8 and which engages in corresponding eyelets on the underside of the interchangeable body when the interchangeable body 15 is pushed into the end position shown in FIG. 4, so that Tilting part 8 and articulated part 11 are rigidly locked to one another via the interchangeable body. If the tilting process shown in FIG. 5 is to be initiated, the elongated arm part is pulled back a little by the sliding drive after the locking means 17 have been released, so that the interchangeable body, as shown in FIG. 5, can subsequently be pivoted up.

FIG. 6 shows another embodiment of the device for receiving and depositing an interchangeable body 15. The structure of the vehicle itself corresponds to the vehicle described with reference to FIG. 1, that is to say it is provided with a filling and compression device 3 behind the driver's cab 2, the opening 5 of which points horizontally towards the rear. The interchangeable body 15 to be accommodated, in the form of a collecting container for waste materials, has a corresponding filling opening on its front end wall, which has to be sealingly docked to the opening 5 of the filling and compacting device 3. In this exemplary embodiment too, the tilting frame 7 has a tilting part 8 which can be pivoted about a tilting axis 9 on the rear of the vehicle. The kink part 11 is articulated to this tilt part 8 via the kink axis 10. The

5 swivel drive 12 is in turn articulated on the articulated part 11 and can be pivoted in the vehicle longitudinal direction via the swivel drive 12 from the receiving position shown in FIG. 6 lying flat on the vehicle frame.

I _Q In the exemplary embodiment shown in FIG. 6, an arm pocket 13.1 provided with a gripping hook 14 is articulated on a sliding part 18, which is displaceably guided on the folding part 11 by means of a sliding drive (not shown here). The arm part 13.1

15 can be pivoted via a swivel drive 19 from the angled position shown in FIG. 6 into an extended position pointing in the direction of the bent part 11.

When picking up the interchangeable body 15 from that in FIG. 6

In the position shown in FIG. 20, the articulated part 11 is first pivoted in the direction of the driver's cab via the swivel drive 12 until the position shown in FIG. 7 is reached. Then the interchangeable body 15 is so far on the tilting frame in the direction of the

25 advanced cab until it has reached the intermediate position shown in Fig. 8. In this intermediate position, the interchangeable body 15 is raised by a small amount via lifting elements arranged on the vehicle frame or on the tilting frame, so that the gripping hook 14, as shown in FIG. 8,

30 comes out of engagement with the overhead gripping eye 16.1. Thereafter, as shown in FIG. 9, the arm part 13.1 is pivoted down and pulled back again via the sliding drive until the position shown in FIG. 10 is reached. By lowering the swap body 15 over the lifting elements

35, the gripping hook 14 comes into engagement with the gripping eyelet 16 below and can then be advanced and pushed into the end position shown in FIG the discharge opening 5 of the filling and compression device 3 is docked and locked with it, as described above.

In this embodiment as well, in the manner described above, it is possible to empty a swap body designed as a container, as in the manner described with reference to FIG. 5. For this purpose, after releasing the locks between the swap body 15 and the filling and compression device 3 via the sliding drive, the swap body 15 is pushed back so far that the tilting frame can be swiveled up about the tilting axis 9 at the rear of the vehicle after the closure of the trained rear door 20 has been opened and so the container can be emptied.

The embodiments shown and described above for the tilting frame can also be used in vehicles for handling and transporting containers as exchangeable bodies which have a filling opening in the ceiling area, so that the filling takes place via a so-called overhead loading device. In such containers, the front end wall is designed as a press plate, so that only the necessary pressure cylinders for displacing the press plate are accommodated on the vehicle itself in a carrier arranged directly behind the rear wall of the cab. In these embodiments, too, the container is moved towards the carrier in the final phase and locked with it, so that the pressure cylinders can then be brought into engagement with the press plate. In this embodiment, too, the interchangeable structure designed as a container is docked onto the locking means of the carrier.

Claims

Expectations

1. Device on a vehicle for picking up and setting down swap bodies (15), in particular collecting containers, with a tilting frame (7) divided by a folding axis (10) running transversely to the longitudinal direction of the vehicle, which runs under and over the swap body (15) to be picked up a swivel drive (12) connected to the vehicle frame (6) can be swiveled and its rear tilting part (8) is articulated on the vehicle frame (6) via a tilting axis (9) and its front articulated part (11) is provided with a sliding part which is connected to a sliding drive and which is provided with an elongated arm part (13), the free end of which has a gripping hook (14) which, with one on the end face of the swap body (15) to be handled, is at a short distance above the standing level of the swap body (15) arranged gripping eye (16) can be connected.

2. Device according to claim 1, characterized in that the swivel drive (12) is ausgebil¬ det as a hydraulic cylinder and is articulated on the articulated part (11) of the tilting frame (7).

3. Device according to claim 1 or 2, characterized in that locking means are provided in the extended position for locking the bent part (11) and the tilting part (8).

4. Device according to one of claims 1 to 3, characterized in that the tilting part (8) with a stop to limit the pivoting movement of the bent part (11) and as a driver for pivoting the tilting part (8) after unlocking the bent part (11) and tilting part (8) is provided.

5. Device according to one of claims 1 to 4, characterized in that the stretched arm part (13) is rigidly connected to the sliding part.

6. Device according to one of claims 1 to 4, characterized in that the extended arm part (13.1) is pivotally connected to the bent part (11) and in that a pivot drive (19) for pivoting the arm part (13.1) from the extended position into one angled position relative to the bent part (11) is provided.

7. Device according to one of claims 1 to 6, characterized in that means for releasing the connection between the gripping hook (14) and gripping eye (16) are provided.

8. Device according to one of claims 1 to 7, characterized in that the means for releasing the connection between the gripping hook (14) and gripping eyelet (16) are formed by lifting elements, which the interchangeable structure (15) relative to the support plane of the tilting frame (7) raise and lower.