DE7015201U - SHELVING PRODUCTS. - Google Patents

Description

J ¹ ATtNTANWXLTE ' J

DR.-ING. BY KREISLER DR.-ING. SCHONWALD DR.-ING. TH. MEYER DR. FUES DlPL-CHEM. ALEK VON KREISLER DIPL.-CHEM. CAROLA KELLER DR.-ING. KLOPSCH

COLOGNE 1, DEICHMANNHAUS

Sch / est

Köttgen & Cie GmbH, 507 Bergisch-Gladbach, Paffrather Strasse 79-121

Shelf conveyor

The invention relates to a storage and retrieval vehicle, that is to say to a mobile lifting device, in particular a storage and retrieval device as a vehicle that can be moved on the floor independently of the shelf.

There are known storage and retrieval vehicles on the chassis a lifting frame is provided and a load carrier and an operating station are arranged so that they can be raised. Such storage and retrieval vehicles serve to carry out agreement work, This means that loads can be stored or removed from the shelves, with partial loads being derived from the stored load units can remove and collide to other load units.

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There are also so-called reach trucks, in which the mast is used as a lifting frame on the chassis to the front is arranged displaceably. Such a construction of the conveyor requires a complex and heavy construction. Since the mast can be moved to the end of the chassis and on the moved mast the load can be lifted, it is necessary to create a sufficient counterweight in the chassis. As a result, the conveyor is relatively heavy and has a large dead weight, which makes it economical impaired and requires a relatively high drive energy.

The object of the invention is to create a storage and retrieval vehicle with which the loads can be absorbed from the ground, lifted to relatively great heights and moved horizontally with the lowest possible dead weight and external dimensions. The rack conveyor, on the chassis of which a lifting frame is provided and a load carrier and a control stand are arranged to be liftable, is characterized according to the invention in that the load carrier with its load handling device and the control stand are arranged to be longitudinally displaceable. Here, the rear pair of wheels of the conveyor should be provided near the end of the track ^{e traversable load carrier.}

Such a design gives a stacker truck with a low dead weight, since the center of gravity of the load is located within the wheel base, so that a counterweight as in the case of Gabelsfeplern can be omitted. The lifting device is remains despite the movability of the load carrier

fixed far forward. The load on the mast is almost completely relieved when lifting the load outside. Few & | las mast not shifted any play that may occur in the bearings will not have any effect when the operator's platform is raised unnecessary fluctuations. Also the dynamic forces,

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which occur during acceleration and deceleration processes, are conveniently included in the storage and retrieval vehicle. Maintaining the center of gravity within the Wheelbase oles vehicle brings a considerable weight saving. The load carrier with its load-bearing means is advantageous on a fixed lifting frame liftable lifting carriage provided so that it can be moved longitudinally.

So that the loads can be picked up from the floor, the load carrier of the storage and retrieval vehicle can be in a Position that allows the same to be lowered to the ground. To lower down to the The load carrier is moved so that it can be lowered onto the ground in front of the chassis. The vehicle thereby receives an external load stroke, i.e. the load center of gravity comes to lie outside the wheelbase. However, by means of the advance, the vehicle is lengthened so that that it acts as a counterweight. The fixed mast offers a particular advantage here, as it with its relatively high weight on a relatively large lever arm can be used as a counterweight. the The effects of dynamic forces are reduced to a minimum, as this process only takes place near the ground. As soon as the load is to be raised to a greater height, the load carrier must inevitably first be withdrawn will.

In order to relieve the fixed mast from larger forces, the load carrier is in guide rails pushed forward. Here, the lifting carriage has the guide rails along which a feed carriage is movable. The feed slide can carry the operator's stand at the .vorderen end of the chassis facing side vertical contacts are arranged for the load carrier, which extend up to near the walking floor of the conveyor.

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In a further embodiment of the storage and retrieval vehicle a transverse guide can be arranged between the vertical guides for the load carrier and the load carrier itself be on which the load carrier is pivotably mounted about a vertical pin. By such a swiveling thrust device it is possible to pick up and set down loads to the side of the vehicle.

The invention is explained below with reference to the exemplary embodiments shown in the drawing.

Fig. 1 shows the rack conveyor according to the invention in a side view schematically.

FIG. 2 shows a top view of the conveyor of FIG. 1.

FIGS. 3 and K show, in side view and in plan, the rack conveyor of FIGS. 1 and 2 in a position in which the load carrier with the load suspension means is lowered to the ground in order to be able to pick up loads from the ground.

FIGS. 5 and 6 illustrate a further exemplary embodiment of the subject matter of the invention in side view and top view.

The storage and retrieval vehicle 1 has the chassis 2 to which the running wheels 3 and K are articulated. Here, each wheel is rotatably mounted about a vertical axis and two running wheels, one behind the other in the direction of travel, can be provided with guide elements through which a positive steering effective from outside the car is possible, the guide elements being rigidly connected to the running wheel or the running wheel holder. On the chassis 1

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there is also the hub; - trust 5, which is stored in a stationary manner is and on which a Hubschj i.:·.an 6 in height direction with usual means can be shifted. The lifting slide «is provided with guide rails 7 which extend to the front end of the chassis 2 and between which a displaceable feed slide 8 is mounted. The feed slide 8 can have a driver's cab 9 wear. On the feed carriage 8, a load carrier 10 is arranged so that it can be moved in height, which is equipped with load handling means, e.g. forks 11. The vertical guides 12 for the load carrier 10, 11 are under the Chassis pulled down and extend advantageously to near the floor for the conveyor.

To carry out a work cycle, for example to pick up a load from the floor and to adjust With this load in a compartment of the shelf, the lifting carriage 6 with the guide rails 7 is lowered onto the chassis 2. The feed slide 8 is together with the load carrier 10, 11 from the position of FIG. 1 to that of Fig. 3, i.e. displaced along the guide rails 7 until the load carrier is on the outside in front of the chassis, whereupon it is lowered to its lowest position (Fig. 5) The vehicle can now drive under the load, e.g. a pallet or the like, with the load handling device 11, i.e. the forks and raise sdfeit that the feed slide 8 together Can be withdrawn again with the load carrier 10, 11 into the position of the figure. During these operations is the lifting frame 5 is almost completely relieved by the support of the guide rails 7 of the lifting carriage 6 on the chassis. The load center is in the position of FIG. 1 within the wheelbase and the lifting carriage 6 can together with the feed carriage and the load carrier 10, 11 can be raised vertically. The lifted load

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can then be stored manually on the shelf. Correspondingly, you can proceed in reverse order. The load carrier 10, 11 can form the parts of the driver's cab 9 on the guide rails, not only but also up to a certain height be proceeded above.

In the embodiment of FIGS. 5 and 6 is between the vertical guide rails 12 for the load carrier 10 eir..e swivel thrust device 13 interposed.

This consists of a boom 14 on which the load carrier 10 is articulated so as to be pivotable about a vertical pin 15. The boom 1.4 is displaceable on a transverse guide in the transverse direction, the guide 16 in the vertical guide rails 12 is mounted displaceably in the height direction. The pivoting thrust device 13 enables picking up or putting down loads from the side. Entire storage units can be automatically removed from the Shelf can be removed from or stored in the shelf. Like the positions of the load carrier shown in dashed lines 10, 11 in Fig. 6 show, the load carrier with the load handling device can move forward and to either side be pivoted. The lowering of the load carrier when pivoting sideways can be done in the foremost position of the Load carrier or the transverse guide 16 are made.

The steering of the storage and retrieval vehicle is expediently carried out by means of an all-wheel steering, which enables the precise To drive into the rack aisles. In the case of heavy types, the steering can be operated with hydraulic power be provided.

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Claims (8)

- 7 claims 1. Storage and retrieval vehicle, on the chassis of which a mast is provided and a load carrier and an operator's stand are arranged to be liftable, characterized in that the load carrier (10) with its load-bearing means (11) and the operator (9) are arranged to be longitudinally displaceable. 2. Storage and retrieval vehicle according to claim 1, characterized in that the load carrier (10) with its load receiving means (ll) can be moved longitudinally on a lifting carriage (6) which can be raised on the stationary lifting frame (5). 3. Storage and retrieval vehicle according to claim 1 or 2, characterized in that the front pair of wheels (4) of the conveyor (l) is provided near the end of the path of the longitudinally movable load carrier (10, 11). 4. Shelf conveyor according to claim 1 to 3, characterized in that the load carrier (10, 11) can be lowered at its end of the track below the height of the lifting carriage (8) to close to the floor. 5. Storage and retrieval vehicle according to one of claims 1 to 4, characterized in that the load carrier (10, 11) and the operating station (9) can be moved together longitudinally. 6. Shelf conveyor according to one of claims 1 to 5> characterized in that the load carrier (10, 11) on vertical guides (12) .des feed slide (8) is adjustable in height and that the vertical guides (12) are part of the control station (9) form. 701521130.8.71 7. Shelf conveyor according to one of claims 1 to 6, characterized in that the lifting carriage (6) has guide rails (7), along which the feed slides (8) is displaceable, and that the feed slide carries the operator's station (9) on which in Front end of the chassis (2) facing the side vertical guides for the load carrier (10,11) are arranged, which extend to near the floor of the conveyor. 8. Shelf conveyor according to one of claims 1 to 7 » characterized in that a pivoting pushing device (13) is arranged between the vertical guides (12) for the load carrier and the load carrier (10, 11), and that this swiveling pushing device is a has transversely movable boom (14), on which the list carrier (10, 11), in particular a vertical pin (15), is pivotably mounted. 701521130. ·. 71