BURGLAR-RESISTANT TUMBLER LOCK Russian patent published in 2018 - IPC E05B15/14 

FIELD: instrument engineering.

SUBSTANCE: tumbler lock with lock bar, which is partially located in the key rotation zone in the key channel, and with plate tumblers, which have zones with specific slots for interaction with the locking post located on the locking rail, plate-shaped toggle switches are mounted with a possibility of rectilinear displacement along, at least two guide fingers that are located in the guiding slots on the plate tumblers, and, at least, one of the guide fingers is installed in the housing movably, that is, with the possibility of displacement together with plate-like toggle switches under the action, at least one incorrectly installed plate-type toggle switch, and on the plate toggle switches there are special locking slots, in front of which a special locking lug is fixed in the body.

EFFECT: to ensure the same lock correctly and incorrectly installed plate toggle switches when trying to open the lock, the locking bar is removed from the key rotation zone in the key channel, and the movable guide finger or other movable member is displaceable under the action of a separate pushing device, which is not rigidly connected to the locking strip, has at least one control protrusion extending into the key rotation area and is rotatably mounted with respect to the movable guide pin or other movable member.

7 cl, 5 dwg