Pit ladder type E

The ALU folding ladder is particularly suitable for shaft conditions in which it is not possible to attach the ladder to the shaft wall or, as in the case of glass elevators, a ladder should not be noticeably visible. In shafts with shallow shaft depths and high shaft pits, the folding ladder is a suitable aid to ascent and descent. The ALU folding ladder is available in a version with one or two pairs of steel joints. The folding ladder has a hook-on profile that can be adjusted as required according to the maximum shaft pit depth and, when installed lengthways, is used to lock in the guide groove of the door threshold. A tilting back of the applied ladder can thus be prevented. If the ladder can only be installed parallel to the doorstep, a safety contact (optionally attached to the wall or floor) should (optionally) monitor the position of the ladder.

The ladder is automatically locked by pulling it up using a chain of knots attached to the shaft wall. After use, the steel joints are unlocked with the help of pulling ropes so that the folding ladder can be brought into rest position by lowering it. The bearing block to be fixed on the shaft bottom gives the unfolded and applied ladder on the one hand a secure stand against slipping and on the other hand ensures that the ladder is safely guided from the rest position to the end position. In the case of hydraulic elevators, the bearing block can be attached via an additional wall bracket, since drilling into the bottom of the shaft may not be permitted.

The ladder rungs are pressed together with the ladder rails and are ribbed to prevent slipping. Fastening material is completely enclosed with the ladder. The ladder can optionally be supplemented with height-adjustable stile extensions at the top end of the ladder. The pit ladder type E complies with DIN EN 131 + DIN EN 81-20/50 requirements.

European Patent No. 1609943

FURTHER LENGTHS ON REQUEST!