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. Lock comprises housing with lock key for key, rectangular bar fixed on housing with two rows of symmetrically located slots for spring-loaded lever tumblers, wherein plate by its middle is located on vertical axis passing through cylindrical post, which is guide for set of spring-loaded lever tumblers and crossbar plate, on which three crossbars are fixed. Crossbar plate has a comb interacting with key. Upper crossbar has blind holes interacting with electromagnet armature, controlled photorelay, which optical axis is located perpendicular to the surface of the lever tumblers provided with holes coinciding with the height of the key bit. Light switch can operate in both visible light and infrared light. Advantage of invention consists in minimized size of lever tumblers. Provided is protection against extraneous light.

EFFECT: lock does not open with pickpockets, impression, self-impression and devices according to RF patents Nos 2361050 and 2489560.

6 cl, 5 dwg