DOOR LOCKING DEVICE Russian patent published in 1994 - IPC

FIELD: mechanisms for locking safe. SUBSTANCE: door locking device has a body with a cover, clasps, driving mechanism in the form of toothed racks, being monolithic with the clasps. A locking mechanism of the device, arranged in the body, has movable link in the form of a toothed disc. A key with a pivotable drift is also arranged in the body. The toothed disc is placed symmetrically relative to a connection plane and it is mounted on a sleeve, having guiding hole for the key. A rear end of the sleeve coincides with an end of the disc. The locking mechanism of the locking device has spring-loaded plunger-rods and code plungers, having stepped form. A step of the plunger rod, engaging the code plunger, has a diameter, non-equal to a diameter of a reciprocal part of the last one. The pivotable drift of the key has a dent, limiting its rotation in longitudinal direction, and it is arranged in a through longitudinal groove with possibility of rotation by 270 degrees and with possibility of fixation upon folded state of the key. The key is provided by a ball stopper and rotary handle, having П-shaped cross section and secured with possibility of engaging with the stopper and with the pivotable drift, being in a folded state. EFFECT: enhanced reliability. 3 cl, 7 dwg