Slide-in Store for Roller Pallets and a Process for Inserting Goods Into and Withdrawing Goods Out of Said Store

1. Field of the Invention

This invention has to do with a slide-in warehouse for roller pallets with one or more superimposed and horizontally positioned storage planes in which each storage plane is connected to at least one transport passage, in which transport vehicles can move, at a right angle with the storage channels positioned at the storage plane, which provide the appropriate devices for the insertion and withdrawal of the roller pallets in the storage channels and the devices respectively position the roller pallets at the beginning of a storage channel and couple them with a roller pallet located in the storage channel and turn around, as well as a process of insertion and withdrawal of goods.

The warehouse should have a high storage density and it should serve for the storage of bulk goods.

2. The Prior Art

For the accomplishment of this purpose, a storage system limited to three levels is already known in which the entire conveyance flow of insertion and withdrawal is handled through the central storage level and, with each conveyance cycle, from the middle storage level outward, the goods are conveyed and exchanged alternately once in the higher and once in the lower storage level. The particular disadvantage here is that the number of the storage areas is limited to three storage levels. If further storage areas are required, then the storage system must be expanded even beyond the existing storage system of three storage levels. In the expanded storage system, then, the middle storage level is also used for the conveyance flow of insertion and withdrawal. Furthermore, with this type of storage additional surfaces are required for the preparation and consignment of the goods.

An object of the invention is to create a warehouse with the least possible ground space in which a greater number of storage areas are available and, furthermore, where it is possible to have sorting which is automatic and specific as to place for more of the storage and shipping operations within the warehouse according to the loading lists issued. The advantage which is achieved by the invention is constituted particularly in the fact that, in a relatively minimal ground surface area of the warehouse, the storage, consignment and preparation of goods according to the shipping orders or the loading lists can be executed, so that precise sorting is made possible with the parallel execution of more operations.

An example of the application of the invention is represented in the drawing, and is described in more detail in the following. This displays:

FIG. 1 a slide-in warehouse in side view, in cross section,

FIG. 2 the operational plane, viewed from above,

FIG. 3 a storage plane, viewed from above,

FIG. 4 the auxiliary operational plane, viewed from above.

FIG. 5 shows a roller pallet carrying goods.

FIG. 6 shows coupling means for the roller pallets.

In FIG. 1, there is the insertion and withdrawal of the goods on the operational plane of a slide-in warehouse.

The operational level or plane (1) has cargo vehicle ramps (2) for the receipt and dispatch of the goods (22) by cargo vehicle as well as ramps for the dispatch of the goods by rail (3). The ramps are positioned at the respective loading stations (4).

Underneath the operational level or plane (1) the auxiliary operational level or plane (5) is positioned in the basement. On this plane, the empty roller pallets (21) are stored and again brought to the operational plane (1) on the appropriate devices. Above the operational plane (1) the storage level or planes (6) are positioned. The storage planes (6) are connected to each other and to the operational plane (1) by means of elevators or hoists (7). Each storage plane has a transport passage (8) in which a transport vehicle (9) can travel. At a right angle to this transport passage (8) are positioned the loading channels (10) as well as the storage lanes (11). At the transport passage (8) and the hoist (7) a handling area (12) is positioned in each storage plane (6) so that no additional means of transport is required between the hoist (7) and the transport vehicle (9). The storage lanes (11) are positioned to the rear of the hoists (7).

In the following, the process for the insertion and the withdrawal of the goods is described in more detail.

The delivery of the goods takes place by means of the cargo vehicle on a cargo vehicle ramp (2) with any suitable known devices (13) for the rapid unloading and any suitable known devices (14) for the rapid unstacking of the goods, which devices are not indicated in further detail. In the next work step, the goods are placed on roller pallets at a handling station (15) and are prepared for their further transport in the storage planes (6). For this, the roller pallets are brought directly to the handling station (15) over the auxiliary operational plane (5) on a transport device (19). Here, in one work step, a maximum of three large packed household appliances, etc., can be placed on roller pallets. This unit of goods for storage is brought to a loading hoist (16) for subsequent transport in the storage lanes (6). The insertion of the goods takes place only by means of this loading hoist (16). The loading hoist (16) carries the unit of goods for storage to a storage plane (6) as established by the storage management and places the unit of goods in the handling area (12) of the storage plane (6) positioned at the loading hoist (16). The transport vehicle (9) of the respective transport passage (8) takes on the unit of goods for subsequent transport in the loading or storage channels (10). If the chosen handling area (12) is already full, then the unit of goods can also be transported in the storage lane (11) positioned at the loading hoist (16) and stored there temporarily until a later point in time for transport in the storage channels.

Inside of the loading or storage channels (10) and storage lanes (11) it is not required that there be any auxiliary means of transport for the goods. The roller pallets are interconnected by means of known coupling mechanisms and are coupled and uncoupled with each other in the insertion and withdrawal out of a loading or storage channel (10) or a storage lane (11).

FIGS. 5 and 6 illustrate the roller pallet

wherein 9 denotes horizontal transport vehicles;

wherein 12 denotes handling areas;

wherein 7 denotes hoist;

wherein 27 denotes devices for insertion and withdrawal;

wherein 23 denotes coupling devices on the roller pallets;

wherein 28 denotes supporting beam for hoist 7;

wherein 29 denotes chassis of the transport vehicle;

wherein 24 denotes devices for docking in the handling areas 12;

wherein 25 denotes means for docking to the horizontal transport vehicles 9; and

wherein 26 denotes means for docking to the hoist 7.

The above elements are briefly explained as follows:

With regard to 27, the driver drives beneath the pallet and can then engage the coupling device 23 of the pallet. Means 24 for docking on the handling area are needed when the roller pallet is transferred from the hoist or horizontal transport vehicle to the handling area. Means 25 for docking on the horizontal transport vehicle receive means 24 from the handling area. Means 26 for docking on the hoist receive 24 from the handling area.

Devices which may be utilized for rapidly loading or unloading and stacking or unstacking of the roller pallet are fork-lifts. The fork-lifts can also be used to couple and uncouple the roller pallets. The roller pallets can be transported inside the auxiliary storage level by fork-lifts. The roller pallets can be brought to the operational plane from the auxiliary level by transport device 19. Fork-lifts can also be used for insertion and withdrawal of the roller pallets.

The withdrawal of the goods takes place by means of the so-called sorting hoist (17). From the handling areas (12), pursuant to the delivery order of a readied cargo vehicle, various large household appliances are assembled into a delivery unit. In order for this, the transport vehicle (9) of the transport passages (8) carries the respective household appliance out of the loading or storage channels (10) to the handling areas (12) of a designated sorting hoist (17) which is positioned at the cargo vehicle ramp (2) utilized. The sorting hoist (17) is sent to it with the goods in a chosen storage lane (11) positioned at the rear of the storage plane (6) which represents a consignment zone. In this way, the various types of appliances can be stored temporarily in the same order as that of their subsequent delivery to the shipping destination. By this means, for example, it is possible to have a loading for the circular delivery tour called for in shipping.

As soon as the cargo vehicle is standing available at the ramp (2) the sorting function of the respective hoist (17) is halted and the hoist (17) is made available only for the withdrawal of the goods. In this, the roller pallets with the appliances are transferred on an unloading station (18), the appliances are separated from the roller pallets and, for example, with the assistance of fork-lifts, etc., are loaded into the cargo vehicle or for shipment by rail in cars. The empty roller pallets are carried on a transport device (19) into the auxiliary operational plane (5) and then on to the handling station (15) in the operational plane (1) to be made available. The transport of the empty roller pallets inside of the auxiliary operational plane (5) is effected by means of a transport system (20) between the transport devices (19), which system is not described in further detail.