Mechanism PF 257-5
The mechanism is used in corners and sofas. It can be mounted in furniture with fixed backrest pillows. The unfolding of the sleeping surface consists in pulling out the seat and then slight uplifting and lowering the seat to the front onto the floor. An advantage of this solution it not only the fact, that removing the backrest pillows is not necessary but also that the mechanism is very easy in handling, eliminates any danger of floor scratches and ensures the high comfort of sleeping on both lying surfaces. It is very significant, because only the fixed part of the lying surface ensures the proper lying comfort so far. Another version of this mechanism is PF 121-5 - a mechanism with an automatically unfolding leg.