DOOR LOCK Russian patent published in 2017 - IPC E05B15/10 

FIELD: construction.

SUBSTANCE: bevelled latch (5) comprises the sloping surfaces (10A, 10B) on both sides, so that the end part (5A) is narrower at its top than at the rear part of the end part. The end part has the recesses (53A, 53B) in its lower part and upper part, which extend from the top to the rear part. Both recesses are open at the top end of the end part and on the other inclined surface (10A, 10B), so that the upper part recess is open on the inclined surface opposite the lower part recess. Both recesses have the rotatable part (31A, 31B).

EFFECT: tension of the bevelled latch parts subject to wear is reduced, thus allowing to increase their service life.

12 cl, 7 dwg