COMBINATION LOCK Russian patent published in 2024 - IPC E05B37/20 

FIELD: locks.

SUBSTANCE: combination lock comprises a sleeve, in which the main housing having radial holes, and an axis with code discs installed on it, and a control device are coaxially placed. Each disc has protrusions on end surfaces and recesses on outer diameter for locking balls arranged in radial holes of the housing. Additional housing with additional code discs is installed in the sleeve on the said axis. Additional housing is fixed along the angle with the main housing through a ring installed between them with slots on the inner diameter according to the number of characters in the code bit. In the axis there is a central hole for arrangement with the possibility of axial movement of the control shaft pressed by the spring, having radial protrusion for alternate interaction with protrusions of extreme to the ring code discs in their extreme axial positions and entering the slots of the ring in the intermediate axial position of the control shaft. Control device is made in the form of a cover fixed on the sleeve and is equipped with a rotary pusher interacting with the control shaft and equipped with radial protrusions entering the inclined slots made on the control device. In the control shaft there is a through slot for arrangement of a pin fixed diametrically on the control device with the possibility of axial movement of the control shaft by the rotary pusher.

EFFECT: higher secrecy of locking by increasing bit depth of combinations with simplicity of control.

3 cl, 7 dwg