DESCRIPTION TECHNICAL AREA A goods wagon for trackbound container transport in connection with loading and unloading of trackbound goods wagons. Further the goods wagon is arranged to shunt other trackbound wagons and admit reloading of goods as well.

More specifically, the invention is directed to enable a fast and simple reloading of a number of goods wagons.

THE BACKGROUND OF THE INVENTION AND THE PROBLEM At a loading or unloading of a container at a trackbound goods wagon, for instance when a first set of trackbound goods wagons are to be reloaded to a second set of trackbound goods wagons, or at reloading between a lorry and a trackbound goods wagons it happens that unloading of the first set occurs at a first location. Consequently, the goods is transported a distance to be loaded on the second set of goods wagons at a second location. In between the goods can be displaced with other types of vehicles, e. g. industrial trucks, chargers and/or lorries. Here a cargo area is required, wherein these vehicles can be driven. This reloading is also time consuming, expensive and resource demanding.

In other cases crane arrangements of different types are present, which are arranged above the goods wagons, whereby the cranes can lift the containers from the goods wagons to a storage yard while waiting for a following possible loading.

In still other cases extra traction-or sliding force is required, which is principally valid for heavy train sets and/or at heavy passages, for instance at an upgrade, whereby assistance can be necessary.

SUMMARY OF THE INVENTION AND THE SOLUTION OF THE PROBLEM The object of the invention is to solve one or several of the problems stated above.

This is achieved by means of an arrangement according to claim 1.

By the fact that a trackbound goods wagon having a goods bearer is provided with a driving unit comprising an engine, for instance an diesel engine, arranged under the bearer, and a control unit with the possibility to control the control unit at a distance, an independent shunting wagon or auxiliary wagon for other wagons and for reloading of goods is provided, which preferably is encased in containers. By providing the goods wagon with a cable lift comprising at least two lifting units arranged to lift a container arranged on the cable lift upwards toward an elevated position, or lower it to a lowered position, and to detain the container in a predetermined position on the goods wagon when the container is at the lowered position, and partly two lifting units, which are e. g. pneumatic, hydraulic or electric, and at least a support connected with the lifting units, arranged to support against the bearer of the goods wagon, which leads to that the cable lift can lift and lower the container, respectively for loading and unloading the goods wagon, respectively, when it is located between a container and the bearer of the goods wagon.

By the fact that the goods wagon for both unloading and loading can be driven under an elevated container, a. o. because of the goods wagon is not driven by electricity of overhead power transmission lines, its ability to move is increased, i. e. on a shunting yard, and the transport distance for the containers to be reloaded is simultaneously minimised as the trackbound reloading decreases the need of reloading area around the tracks. Further, by means of the goods wagon has a self-supporting driver unit, and means to be controlled via air in the preferred embodiment, a goods wagon is obtained which can be driven nearby e. g. other goods wagons and other occurring obstacles, i. e. posts.

BRIEF DESCRIPTION OF THE DRAWINGS In the following the invention will be described with reference to the embodiments according to enclosed drawings, in which: Fig. 1 shows a schematic sketch of a cable lift according to the invention arranged at an engine-driven trackbound goods wagon.

Fig. 2 shows a schematic sketch of a trackbound engine-driven goods wagon with a container in an elevated position and a container in a lowered position, and a pilothouse and an alternative pilothouse position as well.

Fig. 3 shows a schematic section marked sketch of a cable lift according to the invention.

Fig. 4-8 show schematic explanatory sketches, describing goods wagons in different positions at reloading from a first goods wagon to a second goods wagon according to the invention.

Fig. 9 shows a schematic sketch seen from above of a cable lift according to the invention.

DESCRIPTION OF PREFERRED EMBODIMENTS A cable lift is generally denoted with 1 in the drawing, and a goods wagon is denoted with 2, whereby the goods wagon has goods bearer 2a, onto which the cable lift 1 is arranged to be applied. Further a lifting unit is denoted with 3, and a container is denoted with 4. The goods wagon 2 has a wheel arrangement 2c with wheels 2d arranged to be driven by a driving unit 2e, which comprises an engine, which is exemplified with a diesel engine in the figure. The wheel arrangement 2c and the driving unit 2e are arranged under the goods bearer 2a. Further the driving unit 2e has a control unit 2f comprising a receiving unit 2g for control signals, which can be transferred to the receiving unit 2g by way of wire or preferably through air. The driving unit 2e is self-supporting, which means that it also comprises a working fluid, for instance diesel.

Further the goods wagon 2 shows a pilothouse 2h in which a driver can control. The pilothouse 2h is detachable from the goods wagon 2, whereby the goods wagon can be controlled by way of wire or through airborne signals. The goods wagon 2 comprises two locations for the pilothouse, one location in each end of the goods wagon. There are pilothouse bars 2i for admitting displacement of the pilothouse 2 h from one end to the second end, on which the pilothouse 2h can be laterally displaced, and consequently outside the goods wagon 2. There is a turning device 2j between the pilothouse bars 2i and the pilothouse 2h, which is exemplified with a turntable 2j in the drawing.

The turning device 2j can turn the pilothouse 180 degrees in an opposite direction in such a way that it is correctly turned to be brought onto the goods wagon 2 in the other end.

Another situation when the pilothouse 2 h must be brought off from the goods wagon 2 is when the goods wagon 2 shall drive under an obstacle, for instance a put up container 4.

The pilothouse 2h has also legs 2k projecting downwards from the pilothouse 2h, on which legs the pilothouse 2h can be put, for instance at the side of the track to be turned 180 degrees. In the preferred embodiment the legs 2k are hydraulically driven telescopic legs, but the legs 2k can be bendably shaped and/or insertable into the pilothouse in other embodiments.

In the preferred embodiment the cable lift 1 has a frame 5 manufactured of e. g. round or rectangular steel tubes. Further the cable lift 1 shows at least two, and preferably at least four lifting units 3, which are arranged to work between a support 8 arranged under the frame 5 and the frame 5, which support 8 comprises a support frame 8 of a substantially the same magnitude as the frame 5 in the preferred embodiment, and arranged to support against the bearer 2a of the goods wagon. Preferably, the lifting units 3 are pneumatically driven, but they can also be driven by means of hydraulics and/or electrical current. The lifting units 3 are controllable from the control unit 2f, which controls the lifting units by way of wire or through airborne signals. The size of the frame 5 corresponds to the size of the underside of the container 4 the cable lift 4 shall lift. Thus, the position of the four corners 5a of the frame 5 will substantially correspond to the position of the four lower corners 4a of a container placed on the frame 5. The frame 5 shows a retaining member 6 at each respective corner 5a, which retaining member 6 is arranged to detachably grip or hold the respective corners 4a of the container. Preferably, the notches 4b arranged at the underside of the most containers are here utilized for holding or loading/unloading. The

tube construction of the frame 5 makes it light, and thus, it doesn't constitute any greater part of the cargo of the goods wagon in relation to the maximal cargo of the goods wagon.

Preferably, a bearer 2a of a goods wagon refers to a plane surface for goods, which surface substantially covers the major part of a goods wagon, but a bearer 2a of a goods wagon can also relate to one or several surfaces, which together form a sufficiently plane surface for supporting a cable lift 1.

The cable lift 1 has also a limit switch arranged at the respective corner, arranged to interrupt continued elevation when the respective corners of the cable lift 1 have been lifted to their maximum height of lift. The limit switch 7 is exemplified with a wire 7a in Fig. 3, and a cut-off unit 7b, which for instance cuts off a supply current or an oil/air flow to the cable lift units 1 when the wire 7a is stretched. In one alternative embodiment the limit switches are located at one side of the cable lift 1.

Further a ball joint 9 is arranged at the respective corner between the frame 5 and the supporting frame 8, comprising a ball 9a connected with the supporting frame 8 and a corresponding ball glove 9c arranged at the frame 5 as well, see Fig. 3. When all the lifting units 3 are engaged the entire frame 5 is lifted straight upward, whereby every ball glove 9b leave the corresponding ball 9a. Thus, the cable lift 1 can lift the container 4, substantially straight upward to a height of approx. 5-80 cm or more, and preferably approx. 20-40 cm upward from the goods bearer 2a on the goods wagon 2.

Locking devices 10 are placed along the four sides of the cable lift, which locking devices 10 are arranged to lock the frame 5 in its lower position, but are not arranged to prevent the frame 5 to rotate around a locking device 10. The locking devices 10 are in Fig. 4 exemplified by a locking bolt 10a displaceable along its own axis, which can be brought into an ancillary locking opening lOb. The axis 10a of the locking bolt is arranged along one side of the cable lift 1. Preferably, there are at least two locking devices 10 along each side of the cable lift 1. The cable lift 1 has two longer sides and two shorter sides, whereby at least the two longer sides, respectively, preferably show more than two locking devices 10. The lifting units 3 being arranged along a first side of the cable lift 1 can also be controlled to be simultaneously operated in a group. When the lifting units 3 along a first

side are operated all the locking devices 10 are released. Here the frame 5 will be rotate around the ball joints 9 of the second side, whereby a container 4 placed on the frame 5 will be rotate along. Thus, since all four sides of the cable lift 1 have ball joints 9 and lifting units 3, a loaded container 4 can be rotated/wobbled in four directions, i. e. orthogonal to the four sides of the cable lift. This wobbling can facilitate at the unloading of goods, for instance unloading of bulk goods enclosed in the container 4, whereby this goods can be poured out of the container 4.

The cable lift 1 has a size corresponding to the magnitude of the container 4 which will be arranged on it. Preferably, one, two, three or four cable lifts 1 are used onto a goods wagon 2, whereby one cable lift 1 carries one container. In alternative embodiments the cable lift 1 can also be adjusted, e. g. by means of several retaining members 6 such that two or more containers 4 can be arranged at the same cable lift 1.

There is at least one side displacement protection 12 between the frame 5 and the supporting frame 8, which side displacement protection 12 is executed as a dowel pin 12a connected with the supporting frame 8, and a dowel pin position 12 b connected with the frame 5 in the preferred embodiment. The side displacement protection 12 is arranged to prevent displacement of the frame due to high side loads, for instance at shunting, when the cable lift 1 is in its lower position and thus, when the dowel pin 12a is placed in the dowel pin position 12b.

Before reloading of a container 4, from a first goods wagon to a second goods wagon, the first goods wagon is driven to the reloading position by means of the driving unit, see Fig.

5. At the reloading position the container 4 is unloaded from the goods wagon 3a, see Fig.

6. Here it is used at the cable lift 1 arranged on the goods wagon 3, which consequently lifts the container 4 upward and substantially straight upward, so that at least a ground support 11 can hold/grip the container 4. Consequently, the cable lift 1 is lowered and the container 4 is detained above the wagons by means of the ground support 11, whereupon the goods wagon is carried away, see Figs. 5-6. Here the lift height of the cable lift 1 is adjusted in such a way that the wagon can be brought under the container 4 except obstacles from containers 4 or the ground supports 11. Subsequently, the second goods wagon is driven in under the container 4, which for instance can occur by means of the

driving unit of the second wagon, or a locomotive connected with the second goods wagon, or coupled together with the first goods wagon during the time it leaves the reloading position, see Figs. 6-7. The second goods wagon is arranged in a position under the container 4 and the cable lift 1 of the goods wagon is lifted and receives the container 4 from the ground supports 11, see Fig. 7, and lowers it to a position on the bearer 2c of the goods wagon. Hence the second goods wagon can be driven away, see Fig. 8.

The invention shall not be regarded as limited to the embodiments described above, but can be varied within the scope of the claims, for instance reloading can occur between a lorry and a goods wagon.

LIST OF REFERENCE NUMERALS cable lift 2 goods wagon 2a bearer of the goods wagon 2b 2c wheel arrangement 2d wheel 2e driving unit 2f control unit 2g receiving unit 2h control house 2i pilothouse bars 2j turntable 2k legs 3 lifting unit 4 container 4a corners of the container 4b notch 5 frame 5a corner of the frame 6 retaining member 7 limit switch 8 supporting frame 9 ball joint 9a ball 9b ball glove 10 locking device 11 ground support 12 side displacement protection