INTERLOCKING DEVICE FOR CAR DOOR LOCK (VERSIONS) Russian patent published in 2001 - IPC

FIELD: automotive industry. SUBSTANCE: proposed device is designed for preventing unauthorized getting into car. Device has cylindrical body with inner surface of variable cross-section accommodating detent spring-loaded relative to body and engaging with locking unit along sliding line tilted relative to axis of device. Locking unit is made in form of two cylinders connected for relative and combined longitudinal travel inside body. Locking unit is connected at one side with tie-rod of interlock, and at other side, with rod of central lock system electrically-operated device. Proposed device is available in two design versions, namely, direct- and inverse-action types. According to first design version, device has stop to limit displacement of cylinder from "released" to "locked" position, and detent is made in form of hollow bushing installed inside cylindrical body in space limited by guide bushing with provision of possibility of cross displacement at L_lock.str≅L_ex.tr where L_ex.tr is length of excess travel of rod of electrically-operated device relative to working stroke of car door interlock, tie-rod L_lock.str is length of locking stroke of locking unit cylinder from stop relative to projecting inner part of cylinder until said cylinder thrust against device cylinder. According to second design version, with interlock tie-rod in horizontal position, for instance, when device is installed in car rear door, end face surface of cylinder in contact with cylinder is made stepped, thus forming a slot. Detent element gets into this slot in "locked" position. Groove is made on surface of locking unit cylinder along which engagement with detent is provided. Cylinder groove surface engages with detent surface along sliding line tilted relative to axis of device. As in first design version, L_lock.str≅L_ex.tr. EFFECT: simplified process of device making. 17 cl, 10 dwg