DE2348793A1 - Shelf loading transporter with floor wheels - has wide chassis projecting under shelving for improving stability - Google Patents

Abstract

The transporter for the storage areas for loding the shelves has wheels which are not guided by rails. The transporter moves pallets and boxes into or from individual shelves. The vehicle has a tall column for stacking purposes. The vehicle is stabilised within the narrow aisles between the shelves. The vehicle chassis is low and flat and it reaches under the shelves on both sides. This considerably improves the stability because of the width of the chassis. Hence the maximum stacking height is very high which contributes significantly to better utilisation of given ground area for the storage.

Description

The invention sets up 'sica aui'? _L leveling conveyance with Xalji ¹ -uohienenireien Laui'wheels by means of deosen pallets, anoxes or the like. By driving and lifting movements in connection with a suitable fork system, shelf stack heights of up to approx. 10 : a can be achieved with known shelf trucks.

The aforementioned limited stack height of about Io ι is caused primarily by the required stability of the shelf truck, turn soft materially from the track width of the rollers of Regaiförderzeuges depends. To uiögiichst intensive use uea La ge rr au arvoltune ns nan endeavor naturally to keep the aisle width as low as possible.

The object of the invention is to improve the stability while maintaining the smallest possible shelf aisle width and thus to increase the achievable stacking height, as well as the storage and retrieval vehicle for moving one rack aisle

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in. another parallel shelf aisle in a confined space to design it as cheaply as possible with little effort.

This object is achieved according to the invention in that the shelf conveyor eye has a flat aisle on both sides provided under the chassis extending over the Rega! is. as can be seen, this increases the stability of the shelf conveyor eye in the transverse direction of the aisle improved and thus the achievement of a "considerably greater maximum stack height possible, which in turn is a much better one Utilization of a given G-round area for storage purposes results.

In a further development of the invention, it is particularly advantageous on the chassis in the area extending under the shelves, four each pivotable about a vertical axis To arrange wheel sets and to assign a lifting device to each wheel set, by means of v / elcher the respective wheel set slightly can be lifted off the floor.

This training ensures that the vehicle is arranged on the front after driving out of a rack aisle Cross aisle with minimal space requirements can be driven to any parallel rack aisle and then drive into it can. It can be seen that the pivoting of the Wheels with very little energy expenditure without friction opposite can be done on the ground. It can also be seen that in this maneuvering due to the wide pahr-

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23 ^ 8793

track of the storage and retrieval vehicle provides excellent stability is guaranteed.

An advantageous design results when each wheel set has at least two running wheels arranged one behind the other, whereby the wheel track also "with two and more wheels required to take up the weight of the storage and retrieval vehicle with load can be chosen as broadly as possible.

Furthermore, it is advantageous to use each lifting device as in transfer areas of the storage and retrieval vehicle provided centering points in the floor to train cooperating adjustment devices. This makes it possible to use the storage and retrieval vehicle before entering a shelf aisle or the front cross or engraving aisle to align precisely.

Finally, two sets of wheels arranged in a transverse axis can be designed to be steerable in order to move the storage and retrieval vehicle in any desired manner to be able to move in another way.

The invention is explained in more detail below with reference to the drawing, for example. This shows in

pig. 1 shows a storage and retrieval vehicle according to the invention in the direction a cross or traversing aisle arranged at the end of a parallel shelf aisles and in

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pig. 2 the storage and retrieval vehicle according to pig. 1 seen in the direction of a shelf aisle.

The storage and retrieval vehicle shown in FIGS. 1 and 2 consists essentially from a mast 1, from a flat chassis 2 and a pallet truck 3 with load fork and driver's cab.

Vie in particular pig. 2 shows the chassis 2 as a whole kept extremely flat and extends laterally under indicated shelves, such that the track width Q of the storage and retrieval vehicle is considerably larger than the normal aisle width.

Every corner of the chassis 2 is as far out as possible horizontally, a wheel set 4 with two running wheels 7 arranged one behind the other is mounted pivotably about a vertical axis 5, drives 6 suitable for pivoting are provided.

Each wheel set 4 is assigned a lifting device 8, by means of which the wheel set in question can be lifted slightly from the ground, in such a way that the wheels 7 do not rub or erase on the ground ^{when the wheel sets are pivoted by 9 r>, so that they swivel with it} can take place very little expenditure of energy, and especially in a confined space and the width R needs of the end-side of the aisles transverse or Traversierganges not to be much larger than ^1, the longitudinal extension of the shelf conveyor implement (see FIG. 1).

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Each lifting device can be useful as a tell device be designed which cooperates with centering points provided in the floor or hallway, in such a way that the rack conveyor before entering a rack aisle or the cross or traversing aisle can be precisely aligned. Here, for example, the lifting devices can be designed as small hydraulic presses be, whose piston rods are conical at the free end, which conical ends in correspondingly conical, Insert inserts embedded in the floor or hallway.

Of course, the exemplary embodiment described can be modified in many ways without departing from the basic concept of the invention, for example, instead of the wheel sets with! As already mentioned, the training described the Yorteil to make the track of the vehicle as wide as possible. The operation of the lifting device and the drives for the swiveling of the wheel sets can automatically so be coordinated that are initially extended the lifters by means of a release operation, and then accurately pivots the wheel sets to 9o ^0, after which again takes place retraction of the lifting device, so that the The storage and retrieval vehicle is ready to drive in a direction of travel offset by 90 °. Of course, the pivoting of the wheel sets could also be done by hand and the like. More.

Expectations"

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Claims (5)

15 /! Storage and retrieval vehicle with rail-free running wheels, characterized in that, that this with a flat, on both sides of a rack aisle extending under the shelves chassis (2) is provided. 2. Storage and retrieval vehicle according to claim 1, characterized in that andän Chassis (2) in the area extending under the shelves, four wheel sets each pivotable about a vertical axis (5) (4) are arranged and that a lifting device (8) is assigned to each wheel set, by means of which the respective wheel set can be lifted slightly from the floor. 3. Storage and retrieval vehicle according to claim 2, characterized in that each wheel set (4) two running wheels (7) arranged one behind the other having. 4. Storage and retrieval vehicle according to claim 3, characterized in that each lifting device (8) as with in the transfer areas of the storage and retrieval vehicle provided in the ground centering part cooperating adjustment device is formed. 5. Storage and retrieval vehicle according to claim 2 or one of the following, characterized characterized in that two wheel sets (4) arranged in a transverse axis are designed to be steerable. 6098U / 0185 ι ^Γ · j. Empty barrels