LOCKING DEVICE Russian patent published in 2009 - IPC E05B29/02 

FIELD: instrument engineering.

SUBSTANCE: invention refers to finish hardware and concerns a locking device that comprises a key, a body with in-built set of discretion disks with key holes and circumferential grooves. It is supplied with fixed and travelling covers plates closing the body from both sides. The fixed cover plate is rigidly connected to the body through the central axis with its one end fastened in the hub of the fixed cover plate and with another end mounted in the travelling cover plate turnable about its central axis. The fixed cover plate is also rigidly related to a contactor comprising a bearing box and a turnable spring-loaded single-arm hooked lever. On its external surface, the bearing box has a groove and a segmental sample wherein said spring-loaded single-arm lever is axially installed to interact through the hooks with the grooves of the discretion disks and the bearing box. The bearing box is turnable on the hub of the fixed cover plate, and covers the discretion disks with its internal surface, a sector-ledge plug movable on the central axis and rigidly connected with the travelling cover, the sector samples in the discretion disks movable on the plug and covering the sector ledge. The disks and the plug are coupled by an elastic element, and on interface shelves of the plug and disks, there are contoured grooves forming a key opening.

EFFECT: presented design provides higher reliability and locking discretion.

5 cl, 9 dwg