DE9307633U1 - Device for picking up and lifting a container - Google Patents

Description

DREHTAINER Technology Company for Container Special Construction mbH

2 000 Hamburg

Device for picking up and lifting a container

The invention relates to a device for picking up and lifting a container placed on the ground by means of a trailer vehicle, which has: a horizontal, U-shaped frame for gripping the container on its two longitudinal sides and one transverse side and a drawbar which is hinged to the base of the U-shaped frame, frame cross parts, can be pivoted about a vertical axis and can be coupled to a shunting vehicle at its free end.

It is known to pick up containers using trailer vehicles that essentially have a horizontal, U-shaped frame. This depends very much on the skill of the driver of the towing vehicle, as he must bring the frame around the stationary container in such a way that the two longitudinal parts of the frame are parallel and at a sufficient distance from the long sides of the container. Even a slight deviation in this direction of movement with respect to the longitudinal alignment of the container leads to one of the two front vertical side edges of the container resting on the frame. Further vehicle movement can lead to

Damage to the frame and the container can occur, as, depending on the weight of the container and the nature of the ground, considerable forces can be exerted. In this case, maneuvering situations are conceivable where even the most skilled driver can no longer achieve the desired alignment of the U-shaped frame in the container, for example because the limited space available hinders the maneuvering process. Particularly problematic in this context is the fact that the drawbar of the trailer vehicle or the U-shaped pickup frame can be swiveled around vertical axes, and in addition the maneuvering vehicle can also perform movements around vertical axes because it itself has steerable wheels.

It is not just the shunting situation that causes difficulties, there is also the fact that it is often desired that the shunting vehicle can be driven under the container that is to be picked up. This means that the container has to be lifted.

The invention is based on the object of designing a device of the type mentioned at the outset in such a way that containers can be picked up and raised and lowered, whereby the device itself as a whole should also be transported in a commercially available container.

This is achieved by the features specified in the characterising part of the claim.

It is essential for the invention that the U-shaped frame consists of telescopic elements. In the retracted state, the frame can therefore be adjusted to a size

so that it fits into the interior of a container. When extended, however, the frame is large enough to encompass the same container.

The lifting devices of the device according to the invention are also designed to be telescopic. In the retracted state, they have such a low height that they can be brought into the interior of a standard container. In the extended state, however, they can raise the container itself to a height so that its lower surface can be raised up to 1.5 m above the ground.

In principle, the lifting devices are piston-cylinder arrangements, so that a cylinder can be extended vertically downwards. A cable or similar is attached to the extended end of the piston-cylinder arrangement, which is deflected over a roller arranged at the top and attached to the lower end of the container to be lifted. By extending the cylinder of the lifting device, the free end of the cable is moved upwards and in this way takes the container with it.

The invention is explained below using the drawing as an example:

Fig. 1 shows a plan view of the device according to the invention.

Fig. 2 shows a side view of the arrangement shown in Fig. 1.

Fig. 3 shows a front view of two

Operating positions of the arrangement shown in Fig. 1.

Fig. 4 shows one of the lifting devices in the

retracted state.

Fig. 5 shows one of the lifting devices in

extended state.

In Figure 1, 10 generally designates a transport vehicle, which is designed with a drawbar 14 and wheels that are not provided with reference numbers. The lifting vehicle 10 has a horizontally arranged U-shaped frame that consists of two longitudinal parts 12 and two transverse parts 11. Both the longitudinal frame parts 12 and the transverse frame parts 11 are designed to be telescopic. In Figure 1, they are shown in the extended state. The associated means for extending and retracting are not shown, and the associated units are also not provided with reference numbers.

In Figures 1 to 3, a container is designated with 15. In Figure 1, it can be seen that there is another device according to the invention inside the container 15. To distinguish them, however, their parts are provided with the same reference numbers - but supplemented by the number 100. It can be seen that all frame parts 112, 111 and 120 are in the retracted state.

There are a total of four lifting devices 20 in the longitudinal frame parts 12. These are any devices that are able to lift a container attached to them by extending.

In Figure 5, an embodiment of such a lifting device is shown with details and corresponding reference numerals. The lifting device 20 consists essentially of a vertically arranged tube 40 which is attached to the longitudinal frame part 12. Inside the tube 40 there is a piston-cylinder arrangement 41 and a cylindrical part 42 is attached to the extendable piston rod. At the lower end of the cylinder 42 there is a wheel 43 which can rest on the ground and allows corresponding compensating movements there, so that the maneuvering process of picking up a container is made easier. In Figure 5, the wheel 43 is arranged on a block 30, i.e. the wheel 43 rests above the ground so that a greater lifting height can be achieved, which is also clear from Figure 3 (right).

A cable is attached to the extendable part of the piston-cylinder arrangement 41, which is deflected over a roller attached to the top of the housing 40 and guided downwards. The cable 44 can be attached to the corresponding fastening parts of a container when the container is resting on the ground. This is the operating position shown in Figure 4. If the cylinder 42 is now extended, the wheel 43 comes to the ground or the block 30. It is now no longer possible to move further downwards. However, if the piston of the piston-cylinder arrangement is extended further, the upper wheel 45 gains further height and the cable is extended in a ratio of 1:2.

44 and the container 15 is raised accordingly. The corresponding conditions can also be seen in Figure 3, where the left-hand side shows the state where the container 15 is resting on the ground. In the position shown on the right, the lifting device 20 is fully extended, so that a free space of 1.5 m in height has been created below the container 15.

Claims (1)

Claim for protection 1. Device for picking up and lifting a container (15) placed on the ground by means of a trailer vehicle (10 - 14), which has: a horizontal, U-shaped frame (H, 12) for enclosing the container on its two longitudinal sides and one transverse side and a drawbar (14) which is hinged to frame cross parts (11) at the base of the U-shaped frame, can be pivoted about a vertical axis and can be coupled to a shunting vehicle at its free end, characterized in that the frame parts (11, 12) are designed to be telescopic in their respective longitudinal extensions and that lifting devices (20) for lifting a container (15) are provided at the front and rear of the two leg parts (12) of the U-shaped frame (11, 12), which are also designed to be telescopic. phone Telecopier Deutsche Bank AG Postgiro office Bayer. Vereinsbank Telephone Facsimile Hamburg Hamburg Munich (0 40) 38 12 33 (0 &Ogr;) 3 80 92 88 KIo.-No, G 312 131 Account No. 852 02 202 Account No. 46 5IiT 08( (0 40) 38 12 34 BtZ 200 .'00 00 Bl/ 200 100 20 Bank code 700 202 /0