Abstract: A folding seat, having a supporting structure, to be fixed to a wall, for a sitting surface which can be tilted from a vertical inactive position to a horizontal active position by way of a tilting mechanism. The seat includes a group of elements used for adjusting a tilting force.

Abstract: A door lock includes an outer enclosure constituted by a body that is substantially shaped like a flattened parallelepiped. The lock has a hole passing through the enclosure, with an axis of extension that is perpendicular to the base of the body, and is suitable for the insertion of a double handle unit. The lock further includes a spring latch exiting from a side wall of the body, through an opening, the spring latch being connected to the edge of the through hole and adapted to be actuated by the handle unit. The lock includes a seat for a cylinder, of the mortise type, the latter provided with an end cam and being accessible from the side of the enclosure that is adapted to correspond to the outside of the door, the cylinder being adapted to release the lock.