LOCK Russian patent published in 2000 - IPC

FIELD: locking devices. SUBSTANCE: lock may be used in locking devices with plate detents where cutout key bit turns. Lock body accommodates revolving cylinder in which package of plate detents is located. Each detent with cutout for receiving the key bit is installed for motion perpendicular to key longitudinal axis and for location in radial recesses of cylinder and body. Plate part of lock protecting member has keyhole and locates in body parallel to plate detents between their package and body cover for turning relative to them by means of key and overlapping the keyhole of body cover. Protective member has at least one projection for prevention relative displacement of plate detents in radial recesses of cylinder and body. Projection is located in cutouts of plate detents for contacting simultaneously all plate detents in case of coincidence of keyholes of protective member plate part and body cover. Body, cylinder and protective member plate part have recesses for receiving simultaneously in body and in cylinder of roller for prevention of contact of plate detents and body with cylinder turned in it to initial position. In open state of lock, roller is located simultaneously in cylinder and protective member plate part and fixes mutual position of moved by key movable parts located in cylinder. EFFECT: higher operating reliability of lock. 4 dwg