Patent ID: 7410038
Filing Date: 2008-08-12
Classification: F16H

Abstract:
1. Locking unit for locking of movement of a piston which can be impinged with pressure, said locking unit comprising a piston, an electromagnet provided with an armature bar acting on an operating element, said operating element cooperating with a catching element of the piston in such a way that, in a locking position of the pistons, the catching element blocks continued movement of the piston, and, in an unlocking position of the piston, the catching element allows movement of the piston, the catching element and the operating element co-operate surface to surface by axial movement toward and away from each other, a bolt on the armature bar, the bolt acting through movement of the armature bar on the operating element, and at least one tapered beveling of the bolt co-operating with a conical inwardly extending projection of the operating element by slidingly engaging the at least one tapered beveling of the bolt with the conical inwardly extending projection of the operating element during movement of the armature bar to release the operating element from engaging the catching element and preventing movement of the piston, the conically inwardly extending projection being located between the catching element and the electromagnet.