The lifting mechanism is used in sofas and corners. Its construction enables to unfold the furniture to the sleeping position through the slight uplifting of the seat and moving it to the front. In comparison to the traditional solutions of this kind, the construction eliminates any danger of floor scratches and castor creaking. It is far more easy in handling, because it prevents the seat from bending and blocking when unfolding. Moreover it enables to fix the decorative furniture feet in the frontal part of the furniture. The producer offers other versions of the lifting mechanism, e.g. PF 072-A-5 - mechanism positioning the seat at 3,5º angle, which intensifies the ergonomy of the seat, or PF 085-5 - the mechanism with an automatically unfolding leg, thanks to it, there is no need to assemble any legs supporting the seat after the sofa has been unfolded, and the blend can be low.