Material or article handling – Vehicle with load-receiving portion and means for relocating...
Patent
1993-06-01
1995-03-28
Kramer, Dean J.
Material or article handling
Vehicle with load-receiving portion and means for relocating...
414495, 294 683, B60P 102, B65G 6702
Patent
active
054011370
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for the collection of domestic refuse and similar materials, comprising a number of containers which are disposed in layers above one another, the containers in each layer being accommodated in a support which can be moved up and down.
Such a device is known from FR-A-759,768. The device described therein, which is in the form of a lorry, can be loaded with containers in two layers. The top layer of containers is in this case placed on a support which can be moved up and down. During the loading, this support is placed initially in the lowest position, and containers are placed thereon. The support is then moved up, following which containers can again be placed below it. The operation is the reverse for unloading. In this way a lorry can be loaded with two layers of containers with less work involved.
The disadvantage is that in the case of the device according to FR-A-759,768 the containers in the bottom layer have to be removed before the containers in the top layer can be lowered. Such a device is therefore not suitable if, for example, the containers are intended to be filled while they are already situated in the device. Such a possibility is required, for example, for the increasingly common separate collection of different types of domestic refuse. The domestic refuse supplied, for example, by the different households in one street is in this case pre-sorted and emptied in small quantities into the containers situated in the device. This emptying is carried out mainly by hand, and the height of the containers above the ground therefore has to be as low as possible. In order still to obtain a sufficient degree of loading of the device, it is desirable to store containers therein in several layers. For good working it is in this case not admissible for containers to have to be placed outside the device during the filling.
The object of the invention is to solve the problem described above. For this purpose, a device of the type mentioned above is provided, in which the containers are shaped in such a way that in the low position of the support the containers of a top layer project into the containers of the layer below them.
In this way all containers can be filled by hand from the ground, without any of them having to be removed from the device, and without the workload of the workers being increased in the process.
For example,, the containers can flare out from the bottom upwards, as a result of which they can nest easily.
For a further handling of %he containers, for example for emptying them, it is preferable for the support to be formed in such a way that the containers accommodated by it can be moved out of it and placed in it laterally, thus at right angles to the up and down movement of the support. For example, the containers for this purpose can have at their top end projecting parts with which they can rest on parts of the support, so that they are carried by it.
For easy emptying, the containers can have near their bottom means for gripping them with mechanical means, in order to be able to tilt them through approximately 180.degree..
The invention will now be explained in greater detail by the description which follows of an example of an embodiment of the most important parts of the device for the invention shown in the drawings. In these drawings:
FIG. 1 shows a somewhat schematic side view of a trailer with tractor and containers according to the invention; and
FIG. 2 shows a side view of said trailer with separate layers for the containers.
A tractor 1 has a front axle which can be lifted, for example by means of a hydraulic cylinder 2, said axle having two wheels 3, one on each side of the vehicle, with its own drive motor between the wheels 3 for a single rear wheel 4 in the centre, controllable by rotation about the vertical shaft 5. Behind that, said tractor has on each side a fork tooth 6, connected by lifting means at 7 to the tractor 1, and serving for coupling to a trailer 8 to be described below. Other coupling means could also be used, for
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patent: 2685398 (1954-08-01), King
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patent: 3760966 (1973-09-01), Jones, Jr. et al.
patent: 3870339 (1975-03-01), Goff
patent: 5096216 (1992-03-01), McCalla
Kramer Dean J.
N.C.H. Hydraulische Systemen B.V.
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