Patent ID: 8579268
Filing Date: 2013-11-12
Classification: E05D,E05F,E05Y,F41H,Y10T

Abstract:
1. A damping device for a hatch in a military vehicle used during its closing and opening, said hatch being hinged with respect to an interface, wherein: said damping device comprises a tubular body hinged between two bearings integral with said interface, said tubular body encloses two damping systems between which a rod is positioned, said rod is driven in rotation by said tubular body, a finger is integral with said interface and is engaged in a helical groove of said rod so as to cause a translational movement of said rod, said rod is mobile in translation to activate one of said damping systems during the opening of said hatch and wherein said rod is mobile in translation to activate the other of said damping systems during the closing of said hatch, said damping systems are each in the form of a cartridge enclosing Belleville washers and inserted into said tubular body, and each of said cartridges comprises a piston to compress said washers, each of the pistons equipped with a piston finger pressing on said rod.