DE9303311U1 - Steel staircase - Google Patents

Description

Steel staircase
State of the art

The invention relates to a steel shell staircase, which can usually be covered with treads. The treads used for this shell staircase are then removed after the shell has been completed and the intended steps of the finished staircase are then attached. The disadvantage of this procedure is that treads are attached twice and the steps of the shell staircase have to be disposed of.

Up to now, it has been necessary to measure and manufacture each staircase individually. If the staircase is damaged, it must be replaced with a new staircase.

problem

The task is to eliminate the above-mentioned disadvantages.

According to the invention, the problem is solved with the measures according to claims 1 to 4.

Beneficial effects

In the specified application, the invention ensures that the prefabricated shell staircase is ready for use without further assembly of the treads.
This also eliminates the need to dispose of the steps of the unfinished staircase.

By combining standardized stair elements, the shell staircase can be adapted to any floor height.

The use of standardized stair elements creates the conditions for automated stair construction.

The use of the unfinished staircase according to the invention enables the coverings to be replaced without major effort if necessary, e.g. for design reasons.

For the prefabricated staircase, which was subsequently converted from the shell staircase, an advantage can be seen in that the railing, which is designed to be screwed onto the staircase elements, can be removed if necessary, e.g. when transporting very bulky goods.

Further development of the invention

Advantageous embodiments of the invention are specified in claims 2 to 4.

The further development according to claim 2 enables a good adaptation to almost any staircase,

The transport of the shell staircase is made easier by dividing it into individual staircase elements.

Another advantage is that the shell staircase can only be assembled on site and can be used immediately after assembly.

The prefabrication of the shell staircase also ensures that standardized adjustment dimensions can be used.

In general, it should also be noted that the shell staircase according to the invention allows a sufficiently large width of the finished staircase, whereby it must be ensured that the running line of the finished staircase lies in the area of the shell staircase.

Description of the invention

An embodiment of the invention is explained with reference to figures 1 to 3.

Show it:

Figure 1 a side view of a straight staircase element Figure 2 a front view of the staircase element according to Figure 1

Figure 3 a top view of a 1/4 spiral staircase element

The steps made up of sheet metal risers 2 and sheet metal treads 3 are welded onto the profile tubes 1. Upper connection plates 4 and lower connection plates 5 are welded onto the profile tubes 1.

Claims (1)

Protection claims Steel slab staircase, characterized in that sheet metal steps consisting of sheet metal treads (3) and sheet metal risers (2) are attached to preferably two profile tubes (1) which fulfill the function of running plates. Structural staircase according to claim 1, characterized in that several staircase elements are arranged according to the required staircase length and can be screwed together. Structural staircase according to claim 2, characterized in that flange-like connecting plates (4, 5) are arranged at the ends of the profile tubes (1) of each staircase element, which enable a connection of the staircase elements. Structural staircase according to claims 1 to 3, characterized in that standardized staircase elements are also used for spiral staircases.