TRIGGER MECHANISM Russian patent published in 2008 - IPC F42C1/04 

FIELD: small arms.

SUBSTANCE: trigger mechanism of an igniting device comprises a case, a percussion primer mounted in the cavity of said case, a spring-loaded firing pin having a groove and being capable of axial displacement, a spring-loaded inertial cylindrical shell capable of axial displacement and balls entering into contact with the groove of said firing pin. The case is provided with aligned holes and a guiding pin on its outer cylindrical surface, the axis of which is perpendicular to the axis of the shell. The firing pin groove has the form of two segments, one of which is inclined at an angle to the vertical axis. The inertial cylindrical shell embraces the case and has aligned slots on its end face portion and a Z-shaped through slot on its cylindrical surface. The balls come into contact with the case holes and inner cylindrical surface of the inertial cylindrical shell, the Z-shaped through slot of the inertial cylindrical shell comes into contact with the guiding pin, and the aligned slots on the end face portion of the inertial cylindrical shell come into contact with the balls when the shell is in its extreme position.

EFFECT: increase in reliability of the trigger mechanism.

3 dwg