FI77187C - Device for trucks - Google Patents

Description

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Truck equipment - Anordning för lastfordon

The invention relates to a device for trucks, in particular semi-trailers, for lowering and lifting loads, in particular long containers, from a vehicle using a load lowering and lifting device and support legs for raising and lowering the rear end of a pallet, the rear gear being arranged to move towards the front rear end fall.

Such a device is disclosed in Finnish patent publication 57718 for handling long (12 meters, 40 feet) containers. The device includes support legs with which the rear end of the trailer is supported on the ground, after which the wheel is moved by its fluid motor on the guides formed in the frame of the trailer. The device is intended to be also applicable to a conventional truck and to the handling of other elongate pieces instead of containers.

To some extent, similar devices are also disclosed in U.S. Pat. No. 3,303,950, DE 24 51 165 and DE 27 30 803.

In contrast to the above, the device according to the invention is characterized in that a lateral movement is arranged on the pallet by means of support legs.

The purpose of the solution according to the invention is to move, for example by means of the support legs, the entire rear part of the semi-trailer laterally with respect to the container to be loaded precisely. Thus, reversing the vehicle to the container is easier because there is no need to align the vehicle exactly with the container while driving.

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The solution according to the invention will be described in more detail below with reference to the accompanying drawing.

Figure 1 shows a truck with a container-loaded semi-trailer.

Figure 2 shows the same with the container lowered.

Figure 3 shows a cross-sectional view of the support legs.

In the drawing, reference numeral 1 denotes a bogie structure which supports the rear end of the semi-trailer 2. The semi-trailer 2 has guides 3 / on which the gear 1 can be moved forward, whereby the rear end of the trailer can be lowered. These movements, i.e. the forward movement of the gear (direction a) and the rearward tilting of the pallet, are combined with the rearward pushing of the container 4 relative to the pallet 2 by means of previously known devices which are not shown in the drawing. The timing of the movements is appropriately selected and finally the position shown in Fig. 2 is reached, in which the container 4 is completely on the ground. Compared to conventional pallet handling, the tilting of the container remains low.

The support legs 5 are provided with such members that a lateral movement of the pallet is obtained. The means in question are a hydraulic cylinder piston device with its valves and the purpose is to facilitate the alignment of the locking means of the container transfer device on the pallet with respect to the container when the loading begins. The arrangement may be such that the Lateral Movement is or is associated with a vibration suitable for mediation.

In the case shown in the figures, the support legs 5 are in the middle of the rear bogie and pulled up (short) during driving. For handling the load, the outriggers are spread and pressed against the ground 3 77187 (extended) to the position indicated by the dotted lines in Fig. 3, whereby a lateral fitting movement can be used to make the container more easily connected to the lifting device coupling members.

Claims (2)

4 77187 A device for lowering and lifting loads, in particular long containers (4), from a vehicle for trucks, in particular semi-trailers, using a load lowering and lifting device and support legs (5) for raising and lowering the rear end of a pallet (2), the rear gear (1) being arranged to be moved towards the front end of the tractor before lowering the rear end of the pallet (2), characterized in that a lateral movement of the pallet (2) is provided by means of the support legs (5). Device according to Claim 1, characterized in that the lateral movement is made vibrating or is accompanied by such a step.