DOOR RIM LOCK Russian patent published in 1999 - IPC

FIELD: locking devices. SUBSTANCE: main components of this lock are as follows: body which incorporates secrecy mechanism, latches which are kinematically linked with central turnable core of secrecy mechanism, rack-and-gear actuator of latches which converts rotation motion of key into straightline motion of latches. Lock body is made up of internal strip which is located on internal side of door, and spacers screwed to internal strip. Made in one of spacers are guide holes for latches. Also provided is rear strip which is screwed to spacers. Both strips are screwed by means of screws with tapered heads which are sunken simultaneously in both parts being screwed together. Rack-and-gear actuator includes toothed rack secured with latches, and gear which is engaged with rack. Additionally provided is external strip which is fastened with internal strip. Secrecy mechanism is made in the form of cylinder mechanism. Aforesaid embodiment of door lock is easy to manufacture, simple in use and strong enough. EFFECT: higher efficiency. 2 cl, 5 dwg