Motor vehicle antitheft system comprising improved latch bolt retaining means

The antitheft system as claimed in the preceding claim, wherein the displacement of the latch bolt retaining member toward its effaced rear axial position against its return spring is controlled by the backward axial displacement of the manual control member into its pulled back locked position.

The antitheft system as claimed in either of the preceding claims, wherein a portion of the latch bolt located inside the housing has a transverse rear face in which said latch bolt retaining notch is formed which is open axially toward the rear and in which the finger for retaining the latch bolt can be accommodated.

The antitheft system as claimed in the preceding claim, wherein, when the steering column is in the locked position, the front free end of the latch bolt retaining member extends facing said rear transverse face.

The antitheft system as claimed in the preceding claim, wherein the manual control member has a tab for axially retaining the manual control member with respect to the housing that forms a stator, which extends radially outward from the peripheral edge of said flange and which is accommodated in axial sliding in a complementary slot belonging to the housing to allow the axial displacements of the manual control member between its two axial positions, namely its pulled back locked position and its pushed forward unlocked position.

The antitheft system as claimed in any of the preceding claims, and which comprises:

• a motorized member, particularly an electromagnetic member, for immobilizing in terms of rotation the control member with respect to the housing and the release of which is brought about when a coded antitheft signal is furnished by an identification unit to an electronic circuit for controlling the immobilization member;
• and a switch for initiating an interrogation and identification step, which is carried by the housing and which is initiated by the manual control member.

The antitheft system as claimed in the preceding claim, wherein the manual control member comprises a front rotor which is mounted to rotate with respect to the housing forming a stator between two extreme angular positions, one of which corresponds to said angular position of rest, which controls the displacements of the latch bolt and which is axially immobilized with respect to the housing that forms the stator, and a rear control rod which is mounted to slide axially with respect to the rotor, to which it is connected in terms of rotation, between a pulled back locked position and an extreme forward unlocked position.

The antitheft system as claimed in the preceding claim, wherein the immobilizing notch is formed in an annular rear face of the rotor of the manual control member.

The motor vehicle antitheft system as claimed in the preceding claim, wherein the electromagnetic immobilizing member and the initiating switch belong to a subassembly constituting a subassembly attached in the housing.

The antitheft system as claimed in the preceding claim, wherein the attached subassembly comprises a printed circuit board which carries said switch and the electromagnetic immobilizing member.

The antitheft system as claimed in the preceding claim, wherein the printed circuit board is in the shape of a flat annulus oriented transversely.

The antitheft system as claimed in any one of claims 52 [sic], wherein the rear axial end of the control rod is connected in terms of axial translation and in terms of rotation to an operating knob.