The invention relates to an unloading vehicle for the rotary unloading of a container which is able to be covered by a fixed cover, which has a container base with two fork pockets, with a frame on which a carrier, provided with a pair of fork prongs, is rotatably mounted about an axis running horizontally and parallel to the fork prongs. The invention further relates to a combination of an unloading vehicle with a container cover.
From EP-A-1690809 a container is known for the transporting of bulk goods in railway freight transportation or on lorries. The container can be unloaded by rotating or tipping. Moisture-sensitive bulk goods or bulk goods which could be blown off during the journey must be covered during transportation; usually tarpaulin systems are used for this. A disadvantage in this solution is the considerable effort in handling.
The invention is based on the problem of simplifying the handling for emptying a container filled with bulk goods, which is provided with a cover for transportation.
The problem which is posed is solved according to the invention in that above the rotatably arranged carrier, a further carrier is provided which is provided with a receiving arrangement to take hold of the cover of the container and is vertically adjustable and/or swivellable up and down with respect to the frame.
The invention therefore allows not only the container to be handled with an unloading vehicle, but also its cover, so that it is no longer necessary to remove the latter in advance. A device designed according to the invention therefore distinctly shortens the expenditure of time for the handling of the container for emptying and therefore also simplifies the procedure for emptying the container.
The unloading vehicle is to have an expedient and, at the same time, stable construction, which allows the desired handling of the container and its cover. It is therefore advantageous if the frame has an upper and a lower frame part, wherein the upper frame part carries the carrier which is provided with the receiving arrangement.
In order to carry out the movement sequences necessary for taking hold of and lifting the cover in an expedient manner, the upper frame part is vertically displaceable or adjustable with respect to the lower frame part.
In a preferred embodiment of the invention, the receiving arrangement for taking hold of the cover of the container is a further pair of fork prongs. In an alternative variant embodiment, the receiving arrangement can be provided with electromagnets, in particular on its underside.
An unloading vehicle constructed according to the invention allows either a removal of the cover of the container by lifting, by the upper frame part with the receiving arrangement and the cover taken hold of thereby being moved up, or by a swivelling up of a further carrier which for this purpose is arranged so as to be swivelled up and down on the upper frame part.
The invention further relates to combinations of unloading vehicles with container covers. In a particularly preferred such combination, a container cover is provided which is provided with a pair of fork mountings. The further pair of fork prongs can be moved into these fork mountings for the handling of the container cover. In a further combination according to the invention, the container cover is provided with at least one metallic part which is able to be engaged by the electromagnets.
Further features, advantages and details of the invention are now described in further detail by means of the drawings, illustrating example embodiments diagrammatically, in which are shown.
a a detail of
a to 7e,
The container 1 illustrated by way of example in
The cover 2, which is merely resting in the embodiment which is shown, is secured by a lashing strap 4, mounted for example on reinforcement plates. As
On the frame 6, a rectangular cover element is fastened, which according to
a shows a variant embodiment of an unloading vehicle 12 with a chassis 13 with four wheels 13a and a driver's cab 14 and with a lifting frame 14 arranged on the chassis 13. The lifting frame 15, standing vertically, has a lower frame part 15a and an upper frame part 15b which is displaceable with respect thereto in vertical direction. On the lower frame part 15a a carrier 16, which has two parallel fork prongs 17 running horizontally, is arranged displaceably in vertical direction. The lower carrier 16 is mounted here on a rotary arrangement 16b and is rotatable in such a way relative to the lifting frame about an axis running parallel to the fork prongs 17. On the upper frame part 15b a further carrier 18 is fastened, which is likewise provided with two fork prongs 19 running horizontally and parallel to each other. The frame part 15b can be connected with the rotary arrangement, in order to couple vertical movements. In addition, provision can be made to arrange the lifting frame 15 so as to be displaceable with respect to the chassis 13 in lateral direction. The fork prongs 17 on the lower carrier 16 are constructed to be longer than the fork prongs 19 on the upper carrier 18.
b to 7e show stages in the handling and emptying of a container 1 with the loading vehicle 12.
An alternative embodiment of an unloading vehicle 12′ and the container handling therewith is shown by
a to 9f show a further embodiment of an unloading vehicle 12″ and stages of the handling of a container 1. The unloading vehicle 12″ has a chassis 13, wheels 13a, a drivers cab 14 and a lifting frame 15. The lifting frame 15, standing vertically, has a lower frame part 15a and an upper frame part 15b, displaceable or adjustable in vertical direction with respect thereto. On the lower frame part 15a, a carrier 16, which has two parallel fork prongs 17 running horizontally, is arranged so as to be displaceable in vertical direction. The carrier 16 is mounted here on a rotary arrangement 16a and is rotatable in such a way relative to the lifting frame about an axis running parallel to the fork prongs 17. On the frame part 15b a carrier 23, having fork prongs 19, is rotatably arranged about an axis running horizontally and transversely to the fork prongs 19. The reciprocal distance between the carriers 16, 23 or their fork prongs 17, 19 is adapted or able to be adapted to the distance of the fork pockets 3 of the container 1 to the fork mountings 7 in the cover 2 which is positioned thereon. The longer fork prongs 17 on the carrier 23 move firstly into the fork pockets 3 on the container 1, then the fork prongs 19 into the cover 2. The container 1 received by the unloading vehicle 12″ (
The unloading vehicles 12, 12′ and 12″ constructed according to the invention can be additionally used to close containers 1, filled with bulk goods and positioned on the transport vehicle, with covers 2.