DE7613533U1 - AID STAIRS - Google Patents

Description

Raabe & Co. Maschinenfabrik, Imkerweg 23, Postfach 1160,

4936 Augustdorf / Lippe

Makeshift stairs

The present innovation relates to a makeshift staircase for inspecting commercial vehicles, shelves, warehouse structures etc. The task of the present innovation is to provide a makeshift streope of the type mentioned to create a safe and effortless access to commercial vehicles, shelves, warehouse structures etc. and which can also be collapsed when not in use in a confined space and in the shortest possible time is.

According to the innovation, this object is achieved by two spaced apart and interconnected Concertina gate, each in the area of the in operating position horizontally extending legs are provided with step plates.

With the innovation the advantage is achieved that such a makeshift staircase on the one hand a perfect one in the operating position and allows safe access to commercial vehicles, shelves, warehouse structures, etc., but on the other hand also quickly to the smallest space is collapsible, which is often of crucial importance, especially when using makeshift stairs.

7613533 08/19/76

Embodiments of the innovation are shown in the drawings and are described in more detail below. Show it:

Fig. 1 a temporary staircase for the inspection of a commercial vehicle in side view,

Fig. 2 the makeshift staircase shown in Fig. 1 in the collapsed Status,

a view in the direction of arrow III in Fig. 1,

a side view of a makeshift staircase for inspection of storage, office shelves or the like.,

the makeshift staircase shown in Fig. 4 in the collapsed Status,

a side view of an inventive makeshift staircase for inspecting a warehouse structure.

The makeshift stairs shown in the drawings as exemplary embodiments of the innovation essentially consist of two Scissor bars 1, which scissor bars 1 are arranged at a predetermined distance from one another and firmly connected to one another and from step plates 2, which step plates 2 each in the area of the legs 3 which extend horizontally in the operating position Concertina gate 1 are arranged.

The connection of the two concertina gates 1 to one another can be done in a simple manner in that the tread plates be attached to the opposite legs 3 of the two concertina gates 1. Thus, the tread plates 2 form the cross connection between the scissor bars 1 and, since the tread plates 2 have approximately the same depth as the horizontally extending legs 3, a very high one becomes Stability of the makeshift stairs achieved.

7613533 08/19/76

The horizontally extending legs 3 and the vertically extending tabs 4 of the concertina gate 1 are articulated to each other at all hinge points by hollow rivets 5,
it is advantageous between the legs 3 and the
Lugs 4 to reduce friction, plastic washers 6
to arrange.

The construction described above is all in the
Drawings shown embodiments of the innovation peculiar to, although it must be expressly said that it is easily possible and conceivable within the scope of the present innovation, for example, the articulated connection through
to achieve other aids than the hollow rivets 5 described and shown. It is also possible to establish the connection of the two concertina bars 1, for example, by means of continuous axes arranged at the intersection of the horizontal legs 3 and the vertical brackets.

The exemplary embodiments of the illustrated in the drawings Innovation differ leaigucn je ndüi AumcuJu. ^ OIull both in training at the top as well as at the bottom. For example, in FIGS. 1 to 3 there is a makeshift staircase shown, which are intended for inspection of a commercial vehicle is, wherein in Figs. 1 and 2, the rear part of the loading space 7 of a utility vehicle is indicated by way of illustration. For use in a utility vehicle, for example a truck, the temporary staircase according to FIGS. 1 to 3 is on their upper end on the floor δ of the cargo space 7 is pivotably articulated, namely each of the horizontal legs 3 of the two concertina gate 1 by means of a bolt 9 between two Winkeh 10 pivotally attached, so that the makeshift staircase at When not in use in the form shown in FIG. 2, it can be collapsed into the cargo space 7 in a very small space.

7613533 08/19/76

At the lower end is the makeshift staircase according to FIGS. 1 to 3 each provided on the lowermost horizontal leg 3a with a toothed floor support 11, whereby the temporary staircase is securely supported on the floor in the operating position. Slipping away the makeshift staircase is prevented without further aids. However, it can be done without significant additional effort an additional safeguard of the operating position can be created, for example, that two adjacent Legs 3 and tabs 4 of the concertina gate 1 by a rigid bolt or the like. be fixed, eliminating an unintentional and unintentional further pulling apart of the concertina gate 1 is mechanically prevented.

4 and 5, an embodiment of the innovation is shown in which the temporary staircase at its lower horizontal "■ Leg 3a is movable on a carriage 12 transversely to the direction of desire and in which the upper horizontal legs 3 on their front end are each provided with a recess 13, which AussDarunqen 13 for hanging the upper horizontal legs 3 in a guide rail or guide rail: 2l4 serve which Guide rail 14, for example, on a hinted at one shown Shelf 15 is attached. As a result, the makeshift staircase according to the invention is on the one hand against unintentional pulling apart secured and on the other hand it is achieved that the makeshift staircase quickly and easily to any location on the shelf 15 can be moved. In this example, too, eve Temporary stairs collapsible when not in use in a confined space and by storing the temporary stairs on the carriage 12 can this type of collapsed temporary staircase quickly and easily to any other location or for storage in a storage chamber or the like. to be brought.

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FIG. 6 shows the use of a makeshift staircase according to the innovation in a storage structure 16, this exemplary embodiment being to be regarded as a possibility for this, like a staircase according to the innovation Makeshift staircase can be used in cases in which the makeshift staircase may be used for a long time, but not for should be used continuously. In this embodiment according to FIG. 6, the auxiliary staircase is according to the example

1 to 3 at the front ends of their upper horizontal legs 3, pivotable at angles 10 by means of a bolt 9 hinged, which angle 10 in this case on the bearing structure 16 or the like. are attached. On the lower horizontal leg 3a the makeshift staircase according to FIG. 6, non-slip support feet 17 are provided, which non-slip support feet 17 slide away laterally prevent the makeshift stairs. In this application example, too, it is conceivable to pass the two scissor-type gates 1 through to mechanically block an additional bolt or similar aid.

In principle, within the scope of the present innovation, any material which has a strength corresponding to the loads to be expected, but it is particularly advantageous if the concertina gate 1 made of a light metal, in particular aluminum, while the tread plates 2, for example, made of aluminum with a non-slip plastic covering provided on the tread can be produced, but it is also possible to use the Make step plates 2 entirely from plastic. This choice of material has the advantage that with a very high static Load capacity the total weight of the makeshift staircase very much is kept low.

Of course, the innovation is not limited to the exemplary embodiments shown in the drawings, as it is readily available further examples of use and, accordingly, further possibilities for the formation of the makeshift staircase on the upper as well as on the lower End are conceivable.

7613533 08/19/76

Equipping the makeshift staircase according to FIG. 6 with a handrail is possible, this can be attached on one or both sides and is fulfilled with a corresponding knee support all security conditions.

The production of the step plates 2 is also possible from aluminum corrugation or aluminum checker plate.

7613533 08/19/76

Claims (13)

Protection claims 1. Makeshift stairs for the inspection of commercial vehicles, shelves, Bearing structures, etc., characterized by two concertina gates (1) connected to one another and arranged at a distance f from one another, f each in the area of the horizontal νer- f in the operating position running legs (3) are provided with step plates (2). s 2. Staircase according to claim 1, characterized in that the two concertina bars through the tread plates (2), each on two opposite horizontal legs (3) are set, are connected to each other. 3. Staircase according to claim 1 or 2, characterized in that the horizontal legs · (3) and the vertically extending tabs (4) the concertina gate (1) one below the other by means of hollow rivets (5) are pivotally connected to each other. 4. Staircase according to claim 3, characterized in that between the horizontal legs (3) and the vertical tabs (4) in the area of each hinge point plastic disks (6) are arranged. 5. Staircase according to one of the preceding claims, characterized in that that a toothed floor support (11) is provided on the lower horizontal leg (3a) of each concertina gate (1). 6. Staircase according to one of the preceding claims, characterized in that that the makeshift staircase is arranged on a carriage (12). 7. Staircase according to claim 6, characterized in that the upper horizontal legs (3) in the region of their front end with Recesses (13) are provided. 7613533 08/19/76 8. Staircase according to one of the preceding claims, characterized in that that non-slip feet (17) are attached to the lower end of the makeshift staircase. 9. Staircase according to one of the preceding claims, characterized in that that the concertina gate (1) are made of aluminum. 10. Staircase according to one of the preceding claims, characterized in that that the step plates (2) are made of aluminum and have a non-slip covering on their step surface made of plastic or rubber. 11. Staircase according to one of the preceding claims, characterized in that that the step plates (2) are made of plastic. 12. Staircase according to one of the claims, characterized in that that the tread plates (2) made of aluminum or corrugated Aluminum checker plate are made. 13. Staircase according to one of the preceding claims, characterized in that that the stairs are provided with handrails and knee supports on one or both sides. 7613533 08/19/76