| 摘要 |
1. Antitheft device for a motor vehicle steering column having a latch mounted at a fixed point and serving to cooperate with a sleeve surrounding the steering wheel shaft, characterized in that the sleeve (10, 40, 62) has a cross-section with at least two planar faces (11, 12, 50, 51) and is coaxially threaded around a portion (6, 46, 60) of the steering wheel shaft, whose section is substantially shaped like a regular polygon in such a way that when the sleeve is immobilized by the bolt of the latch, the rotation of the steering wheel shaft (2) is opposed by an opposing torque, which varies periodically. |
