DOOR BOLT WITH HANDLE-BUTTON Russian patent published in 1998 - IPC

FIELD: locking devices. SUBSTANCE: door bolt with handle- button uses a superposed case and a box-shaped locking plate furnished with means for installation on the door of the object to be locked, and a handle having a through step hole in its axis for fastening to the case by means of a hollow bush with a shoulder in the handle and a nut on the inside of the case. A bolt is installed inside the case for longitudinal movement and that is engageable with the locking plate at locking. A rod is positioned inside the handle bush, the rod is coupled to a retainer installed in U-shaped guides for movement in the plane perpendicular to the bolt movement. The retainer has a hole receiving the bolt for longitudinal movement in it, and a groove is made on the bolt, its width exceeding the retainer thickness, for fixing the bolt in the locked position by shifting the retainer hole under the action of the spring on the rod. EFFECT: enhanced reliability. 3 dwg