CODE LOCK Russian patent published in 2002 - IPC

FIELD: equipment preventing unauthorized access. SUBSTANCE: given code lock can be installed in doors, safes, containers, chests, vehicles. Code lock includes body with mark or marks, cross-bar or locking bar, code elements with marks, aid protecting against unauthorized selection of code and insulator. Code elements with marks, insulator and aid protecting against unauthorized selection of code come in the form of rings with grooves placed uniaxially one relative to another and form at least one secrecy module. Code elements with marks are kinematically coupled to aid protecting against unauthorized selection of code and insulator is located between surface of following code element with marks and surface of aid protecting against unauthorized selection of code kinematically communicating with surface of previous code element with marks. Insulator is fixed with reference to body. Cross-bar or locking bar is installed perpendicular to surface of code elements with marks and insulator. Code elements with marks, in insulator and in cross-bar or locking bar have grooves. One groove as minimum in cross-bar or locking bar is intended for kinematic interaction with code elements with marks and aid protecting against unauthorized selection of code. Inner diameter of each following ring is less than inner diameter of previous ring. EFFECT: enhanced safety of code lock. 3 cl, 10 dwg