Patent ID: 6647751
Filing Date: 2003-11-18
Classification: B60R,Y10T

Abstract:
A motor vehicle steering column lock, comprising a locking element including two radial projections and displaceable reciprocally between locked and unlocked positions; a control element driveable rotationally in opposite directions by a drive and arranged to axially displace said locking element in opposite directions; said control element surrounding the locking element and comprising first and second inner bevel surfaces which cooperate with said two radial projections of the locking element, said projections being located on mutually diametrically opposite sides of the axis of rotation of the control element, each of said first and second inner bevel surfaces merging at their respective ends into respective first and second, and third and fourth, terminal surfaces located in respective planes extending orthogonal to the axis of rotation of the control element; the first one of the bevel surfaces of the control element and the respective first and second terminal surfaces of the first bevel surface being offset from the second one of the bevel surfaces of the control element and the respective third and fourth terminal surfaces of the second bevel surface along the direction of the axis of rotation of the control element, said first and second bevel surfaces and their respective terminal surfaces being located at different distances away from and extending around the axis of rotation of the control element; the two projections of the locking element being mounted in a stationary manner relative to the locking element and the first projection of the locking element which cooperates with the bevel surface of the control element that is located farther away from the axis of rotation of the control element and with its respective terminal surfaces located farther away from the axis of rotation of the control element being located commensurately spaced along the axis of rotation of the control element relative to and having a commensurately longer length than the second projection of said locking element which is arranged to cooperate with the second bevel surface of the control element and with its respective terminal surfaces.