Safety lock for automobiles

A safety lock for an automobile with a manual transmission operable by a floor-mounted shift stick, said shift stick including a double-armed shift lever having an operating ball pivotally supported in a neck member mounted on the floor of the automobile, said safety lock comprising a flanged double tube member having lower and upper tube sections interconnected by an intermediate flange, said lower tube section closely fitting over said neck member for engagement therewith and said upper tube section projecting upwardly from said intermediate flange, a locking sleeve disposed on said shift stick and being axially movable thereon between upper and lower end positions, said sleeve having a locking member disposed at its lower end and adapted and sized to fit into said upper tube section so as to be tightly received therein when said locking sleeve is in its lower end position thereby to prevent operation of said shift stick, and a lock disposed at the upper free end of said shift stick and capable of locking said sleeve in at least one of its upper and lower end positions, said shift stick including an inner tube adapted to be firmly connected to said shift lever, with said locking sleeve being slidably disposed on said inner tube with an annular gap therebetween and a coil spring disposed in said annular gap abutting at one end tubular means connected to said inner tube and at the other end a ring member movable with said locking sleeve for resiliently forcing said locking sleeve toward its upper end position.