Background of the invention

Heavy loads are commonly lifted by cranes in construction and loading operations. This is hardly possible inside buildings. In addition, there are numerous tasks for which the approach or assembly of a crane is not possible or too costly.

Task

The task of the present invention is to enable the use of lifting gear without the use of a crane.

Solution

The solution consists in assembling a tri- or multipod from usually readily available and inexpensive structural supports, over which traction ropes with winches can be passed, or to which rope or chain hoists are directly attached, with which loads can be lifted. This is done with the aid of a device in which the construction supports are locked by means of connecting plates arranged thereon and there is a suspension for loads.

Prior Art

For temporary use as hoists, construction props are occasionally tied together at their top or under their top plate with straps and the hoist is attached to them.

However, this is not a safe procedure.

Description of the Invention In contrast to the temporary solution described above, the assembly of tripods according to the invention is carried out with a crown which, in the simplest case, takes the form of an equilateral triangle with connecting squares attached to the edges and bent at a selected angle to the triangular surface, the size of which squares corresponds to those of the end plates of building props and which also contain the corresponding holes for fastening the building props so that they can be simply bolted to them.

Instead of bolts, it would also be possible to use snap-fit fasteners as described in DE 20 2020 102 383.

Preferably, the surfaces remaining between the connecting plates can also be shape- optimized by FEM and connected to the connecting plates on both sides, resulting in a stable shell as a crown. As a cold-formed part, this can be made lighter and easier to transport.

In an extended version, the connecting plates are designed as pockets into which the end plate of the building supports can be inserted and locked; this serves to simplify and speed up assembly and disassembly.

It is sufficient to fold the edges of the connecting squares by 180° on three sides in each case and to lock them on the fourth side with cotter pins inserted through long eyelets attached to them.

In an advantageous further embodiment, a further construction support can be mounted as a mast on the crown.

This makes it possible to temporarily support construction elements such as beams or slabs that are to be mounted at a higher level.

This mast can also be used for lighting purposes, for loudspeakers and other construction aids.

The base plate of this additional construction support can be placed directly on the crown and bolted with four bolts inserted through corresponding holes in the crown. Description based on the drawings

Fig. 1 shows a tripod (1 ) according to the invention, which consists of three construction supports (2, 3, 4) connected to a crown (5) to form a toad-bearing unit.

Fig. 2 shows a detail of Fig.1 and demonstrates how the head plates (5) of the construction supports are bolted to that of the crown (6).

Fig. 3 shows how another construction support (7) is used as a mast, which is placed on the crown (6) and fastened with nuts (7) that are bolted with bolts (8) inserted through holes in the crown from below.

Fig. 4 shows how a suspension eye (9) is attached to the center of the crown (6), to which a hoist or chain hoist can be attached.

Fig. 5 shows an angled compensating foot (10) for the construction supports, in which a base plate (11 ) is connected to the support in correspondence with the angle of inclination of the support to the ground.