MECHANICAL FUSE Russian patent published in 2004 - IPC

FIELD: combined double-action, impact and time, fuses actuated by inertia motion of mechanisms at an impact with an obstacle and on expiration of a preset time period from the moment of the shot, determined by combustion of the powder charge of the self-destruction mechanism. SUBSTANCE: the mechanical fuse has a body placed in a casing and closed with gaskets at the ends, it carries the firing pin of the inertia cocking mechanism, whose igniter is coupled to the explosive charges of the self-destruction primer detonator, and a stopper of the distant cocking mechanism kinematically linked with a safety gate valve resting on a spring; as well as an impact inertia-reaction mechanism installed above the source of detonation of the main charge. The novelty is in the fact that the source of detonation of the main charge is provided with an additional primer detonator fastened in the gate valve representing an eccentric and shifted from the longitudinal axis of the fuse, the eccentric is made with a groove and provided with a stepped lock installed for radial motion, the spring is of the plate type, and its free end is engageable with a centrifugal stop and placed in the eccentric groove, a lead charge is axially placed in the body between the eccentric of the gate valve and the source of detonation of the main charge. EFFECT: universality of the fuse design is provided, in which contact and preset remote blastings and self-destruction of small-caliber artillery ammunitions are precisely and reliably accomplished, enhanced safety of handling, prevented unauthorized blastings of the articles. 2 cl, 10 dwg