RIM LOCK Russian patent published in 1997 - IPC

FIELD: locking devices. SUBSTANCE: this device is intended for locking doors and gates of buildings and structures and is reliable in operation and simple in design. Lock has body with key hole and spring-loaded detents, disk with holes for key and pushers, span-piece fastened on side surface of disk, pushers, key with head in the form of double-arm lever, its arms having different static mass. Made in end surface of disk is diametrically located slot for accommodation of key head. Two stops are installed in slot. Made in key head are cut-outs of different depth for interaction with disk pushers. Key is provided with second head in the form of double-arm lever. EFFECT: high efficiency. 1 cl, 3 dwg