A steering lock device includes a camshaft including a shaft portion having an axis, a lock actuation cam that radially projects from a first position of the shaft portion in an axial direction, and a projection that radially projects from a second position of the shaft portion in the axial direction; a housing rotatably accommodating the camshaft; and a lock bar moved by the lock actuation cam in a locking direction or an unlocking direction when the camshaft is rotated about the axis when a key cylinder is operated by a mechanical key. When the lock bar locks the steering shaft, the camshaft is configured so that the projection is separated from the shaft portion if a load exceeding a predetermined strength acts on the projection of the camshaft. The predetermined strength rotates the lock actuation cam to disengage the lock bar from the steering shaft.

The invention relates to a lock for an anti-theft device for a motor vehicle steering column comprising a rotor (5), a stator head (4), a lug (13) and a complementary profile (14), one supported by the rotor (5) and the other by the stator head (4), the complementary profile (14) being shaped such that the engagement of same with the lug (13) blocks the rotation of the rotor (5) in a predetermined direction of rotation (AR) from a predetermined angular position (PIA) and allows the rotation of the rotor (5) by pushing the rotor (5) in beforehand. The complementary profile (14) is also shaped so that the engagement of the complementary profile (14) and the lug (13) guides the assembly of the rotor (5) in the stator head (4) according to a push-rotated assembly in which the rotor (5) is axially retained in the stator head (4).

A lock for an antitheft device for a motor vehicle steering column is provided and includes a stator having a stator head with an opening, a rotor rotatably mounted about an axis with respect to the stator having an annular flange, a cam to rotate as one with the rotor, and an elastic element arranged between the cam and the rotor in order to exert a thrust load axially on the rotor. The opening of the stator is designed to engage with the annular flange to prevent the rotor from rotating in a predetermined rotation direction from a predetermined angular position and allows the rotor to rotate beyond the predetermined angular position by prior depression of the rotor.

A steering lock device includes a camshaft including a shaft portion having an axis, a lock actuation cam that radially projects from a first position of the shaft portion in an axial direction, and a projection that radially projects from a second position of the shaft portion in the axial direction; a housing rotatably accommodating the camshaft; and a lock bar moved by the lock actuation cam in a locking direction or an unlocking direction when the camshaft is rotated about the axis when a key cylinder is operated by a mechanical key. When the lock bar locks the steering shaft, the camshaft is configured so that the projection is separated from the shaft portion if a load exceeding a predetermined strength acts on the projection of the camshaft. The predetermined strength rotates the lock actuation cam to disengage the lock bar from the steering shaft.

A lock for an antitheft device for a motor vehicle steering column is provided and includes a stator having a stator head with an opening, a rotor rotatably mounted about an axis with respect to the stator having an annular flange, a cam to rotate as one with the rotor, and an elastic element arranged between the cam and the rotor in order to exert a thrust load axially on the rotor. The opening of the stator is designed to engage with the annular flange to prevent the rotor from rotating in a predetermined rotation direction from a predetermined angular position and allows the rotor to rotate beyond the predetermined angular position by prior depression of the rotor.

The purpose of the present invention is to provide a steering lock device that can prevent improper access to a cylinder lock due to the deformation of a mounting hole formed in a cut-out shape. The steering lock device comprises: a frame (4) that is provided with a cylindrical section (1) open at one end, and that houses a lock body (3) which moves in and out of a steering column as a result of the manipulation of a cylinder lock (2) secured in the cylindrical section (1); and a mounted member (6) that is mounted in a mounting hole (5), one end of which opens to the open end of the cylindrical section (1) and is formed in a cut-out shape. At both side ends of the mounting hole (5), to-be-locked sections (9) are provided that regulate the widthwise deformation of the mounting hole (5) by locking circumferentially with locking sections (8) of an inserted member (7) which is inserted into the cylindrical section (1) within the frame (4).