DOOR LOCK Russian patent published in 2004 - IPC

FIELD: locksmith's work.

SUBSTANCE: the door lock has a cross-bar with a pin, spring-loaded U-shaped tumbler installed in the body, cover with a cylinder mechanism, handle with a dog and a locking plank. It is provided with a latch located above the slab and made in the form of a square-shaped plate with the ends bent at a right angle and having on one side two square-shaped bulges for engagement with the tumbler, and on the other side-one square-shaped bulge located between them for engagement with the body, the length of the plate is larger than the width of the body by the value of the latch travel, and grooves are made coaxially in the body side walls, their width and depth equals the width and depth of the latch respectively.

EFFECT: enhanced resistance to an unauthorized unlocking.

13 dwg