LEVER TUMBLER LOCK Russian patent published in 2020 - IPC E05B25/02 

FIELD: locks.

SUBSTANCE: invention relates to ironmongery and can be used in safes, in overhead, mortise locks for inner doors of residential and public buildings. Lever tumbler lock comprises a housing with key lock, cylindrical post being a vertical guide for a set of spring-loaded levers equipped with rectangular stepped rods, shanks of which are located in the holes of the plate fixed in the housing, besides, the cylindrical post is a horizontal guide for the crossbar plate, equipped with a blocking device, crossbars and a comb interacting with the key, wherein the locking means is equipped with an additional comb interacting with the electromagnet armature, the controlled photo-relay, the optical axis of which is located perpendicular to the surface of the lower shanks of the levers, provided with holes coinciding with the height of the key beard profile, besides, the lower shanks of the levers are placed in the light-proof barrel containing the light block from the magnetic liquid held by the permanent magnet.

EFFECT: advantage of the invention consists in the fact that the lock does not open with pickles, impression, self-impression and devices according to RF patents No 2361050 and 2489560, since there is no mechanical connection between the crossbar plate and the levers.

9 cl, 3 dwg