STARTING MECHANISM Russian patent published in 2005 - IPC

FIELD: ammunition, applicable for accomplishment of starting of the power supply source or removal of the fuse protection stage of jet projectiles.

SUBSTANCE: the starting mechanism has a hollow cylindrical body, positioned in whose upper part are the bob-weight, the first group of balls, the first cylindrical compression spring, as well as the firing pin, hammer and the percussion primer. The mechanism is featured by the fact that it is provided with the second group of balls, second bob-weight made in the form of a case enveloping with a clearance the upper part of the body, second cylindrical compression spring enveloping the body and installed between the lower base of the body and the case, and the first bob-weight is made in the form of the first cylindrical bush, installed coaxially and with a clearance in the upper cavity of the body, the inner surface of the first bush is made stepped, the larger inside diameter of the first bush is made on the side of its upper face, the larger part of the second group of balls is positioned in a through hole made in the side wall of the body, and the smaller part is positioned in the first circular groove made on the outer surface of the first bush, the balls of the second group are engageable with the inner surface of the lower section of the case, with the second circular groove made in its upper section; a guide rod is fastened coaxially on the lower base of the body, and the hammer is made in the form of the second bush loose-fitted onto the guide rod and installed with a clearance inside the first bush, a flange resting on the step on the inner surface of the first bush is made in the upper section of the second bush, through holes are made in the upper section of the first bush, with the respective ball of their first group of balls engageable with the inner surface of the side wall of the body located with its larger part in each of them, made in the lower part of the side wall are through holes corresponding to the dimensions of the first group of balls, the lower, projecting part of each ball of the first group, from the bottom, is engageable with the flange of the second bush so as to prevent its motion upwards, a guide groove is made in the side wall of the body, a pin fastened in the wall of the first bush is positioned in the guide groove, the first cylindrical compression spring is fitted onto the guide rod between the lower base of the body and the lower face of the second bush, the firing pin and the percussion cap are installed above the hammer in the upper part of the body.

EFFECT: reduced probability of unauthorized actuation.

2 cl, 7 dwg