| 摘要 |
The invention relates to locking devices, in particular – to lock devices that are used for locking doors of dwelling premises, offices, safes and deposit cabinets, and can be used in locking devices for household and industrial objects. In the secret head of the mechanical locking device that has a body in the cylindrical cavity of which a central rotary cylinder is installed, according to the invention in the cavity of the body additionally are installed placed concentrically with respect to the body fixed cylinder and a hollow cylinder rigidly connected to it, this surrounds the central cylinder, and the second rotary cylinder that surrounds the fixed cylinder. The kinematic link between the rotary cylinders is realized through a lever fixed at the end of the central cylinder and the supports at the end of the second rotary cylinder displaced from the neutral position of the lever by angle ± &bgr;, chosen from condition &bgr; > α, where α is chosen from condition sinα/2 = d/D, where d – diameter of pin opening, and D – diameter of the central rotary cylinder. Additional cylinders are intended for fixation of code of the key since at turn of the central rotary cylinder by angle larger than α one excludes possibility of its change. |
