LOCK Russian patent published in 1999 - IPC

FIELD: locking devices. SUBSTANCE: located inside body of lock is turnable axle with drum and set of paired spring-biased pins and pushers located in longitudinal cells of drum. Also made in body is central hole for turnable axle. Central hole is converted into cylindrical space which is coaxial with drum. Cylindrical space is intended for accommodation of drum of turnable axle. Circular space which is concentric with central hole is used to locate part of length of spring-biased pins together with members for holding of pins. Also provided is set of additional pushers installed at least by one additional pusher in longitudinal cells of drum at side which is opposite to pins. Sections of pins and pushers at side of their interacting ends are made as narrowing in direction of interacting ends with smooth transition towards their external surfaces. Circular space of body at zone of its end and longitudinal cells of drum at side of circular space of body are made as widening towards each other with smooth transition towards their longitudinal generating lines. Aforesaid embodiment of lock allows for preventing its breaking-in by foreign objects. EFFECT: higher efficiency. 1 cl, 13 dwg