DOOR LOCK Russian patent published in 2008 - IPC E05B47/00 

FIELD: protection of different objects against intrusion.

SUBSTANCE: lock comprises body provided with cavity and cross-bar reciprocating inside the cavity. Device also has means to provide cross-bar retention in locked position. Cross-bar is made as a separate part. If one of said components is fixed to movable door member another one is secured to fixed door member. Cross-bar is made as plate with shaped cut of varying width having round section located in area of cross-bar cooperation with locking member. The round section has diameter exceeding width of linear shaped cut section beginning from plate end. Means for cross-bar fixation in locked position is made as rotary cylindrical shaft installed in lock body so that the cylindrical shaft may rotate about axis transversal to cross-bar surface. Shaft has cross-section corresponding to rounded shaped cut section diameter. Shaft has grooves arranged in area of shaft cooperation with cross-bar. Distance between groove bottoms exceeds width of linear shaped cut section. Groove widths are not less than cross-bar thickness. Shaft has rotary means made as rotary drive, which is preferably driven by means of controller.

EFFECT: increased reliability of cross-bar fixation in lock body and improved breaking-in resistance.

2 cl, 5 dwg