SAFETY-AND-ACTUATING MECHANISM OF FUSE Russian patent published in 2005 - IPC

FIELD: military equipment, in particular, safety-and-actuating mechanisms of fuses of aircraft anti-aircraft missiles and projectiles.

SUBSTANCE: the safety-and-actuating mechanism has a cylindrical body, in which provision is made for a propulsor with a blasting component, bursting charge, starting electric primer, contact group of the firing circuit and a transfer charge, a catch is installed on the front end-face of the propulsor, that is made in the form of a tapered bowl of deformable material, for example, soft annealed steel, with the larger base directed towards the motion of propulsor, and on the inner surface of body adjoining the end face an annular boring is made. The width of annular boring b is determined by relation b(2-3)a, where a - the thickness of the bowl wall, and the diameter of the boring D=(1,2-1,5)d, where d - the diameter of the propulsor. The diameter of the larger base of the tapered bowl d₁ is determined by relation d₁=0.6-0.9d, where d - the propulsor diameter. The bursting charge is installed coaxially on the rear end face of the propulsor opposite the starting electric primer; the safety-and-actuating mechanism additionally has catches, for example, pyrotechnical, inertial, electromagnetic ones. In the initial position (no-cocked in the electric circuit) the contacts of the firing circuit are open, the propulsor is held by the catches, for example, by pyrotechnical, inertial, electromagnetic, etc.). The blasting component is shifted relative to the electric detonator that is positioned in the body of the safety-and-actuating mechanism providing safety of the fuse at a random actuation of the electric detonator in service handling, at launching of the ammunition, on the trajectory up to the moment of cocking.

EFFECT: enhanced impact resistance to the action of impulse mechanical forces of various nature on the missile flight path and reliability of ammunition functioning at an impact with the obstacle.

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