Abstract: A vehicle steering system includes: a sensor mechanism having a sensor coil 13; an antitheft device which has a key lock collar 4 and is disposed on the rear side of the sensor mechanism, in which the outer diameter of the key lock collar 4 of the antitheft device is larger than the inner diameter of the sensor coil 13 of the sensor mechanism; and a member 15 which has a diameter larger than the inner diameter of the sensor coil 13 and which is disposed on the front side of the sensor mechanism, wherein a steering shaft 3 or 6 to which the member 15 having the large diameter is fixed is inserted to the sensor coil 13 and then the key lock collar 4 is fitted to the steering shaft 3 or 6.

Abstract: An electric power steering apparatus includes a steering shaft having its upper end to which a steering wheel is fitted, a steering column rotatably supporting the steering shaft, tilting about a pivot as a fulcrum and moving telescopically together the steering shaft in axis-directions, an electric assist motor unit attached to the steering column and serving for a steering assist of the steering wheel, and a tilt/telescopic adjustment means for fixing the steering column in a predetermined angular position and fixing the steering column in a predetermined axis-directional position, wherein the pivot is disposed between the electric motor unit and the tilt/telescopic adjustment means.

Abstract: An electric power steering apparatus includes a steering shaft having its upper end to which a steering wheel is fitted, a steering column rotatably supporting the steering shaft, tilting about a pivot as a fulcrum and moving telescopically together the steering shaft in axis-directions, an electric assist motor unit attached to the steering column and serving for a steering assist of the steering wheel, and a tilt/telescopic adjustment means for fixing the steering column in a predetermined angular position and fixing the steering column in a predetermined axis-directional position, wherein the pivot is disposed between the electric motor unit and the tilt/telescopic adjustment means.

Abstract: In an impact absorbing type steering column apparatus for an automotive vehicle in which an upper column is fitted to a lower column fixed to a car body so as to absorb an impact energy upon a secondary collision while moving the upper column along the lower column towards a front side of the automotive vehicle, a low-friction material treatment is effected on one or both of slide surfaces of fitting portions of the two columns, or a sleeve subjected to the low-friction material treatment is interposed between the fitting portions thereof.

Abstract: An electric power assisting steering apparatus comprises a housing, a motor mounted on the housing to generate auxiliary steering power in a rotating shaft, an output shaft to transmit the steering power for steering the wheels, a bearing for supporting the output shaft to be freely rotatable, and a worm gear mechanism having a worm connected to the rotating shaft and a worm wheel connected to the output shaft, to transmit the auxiliary steering power of the motor to the output shaft. An elastic body is provided between at least one of the rotating shaft and the housing and the bearing, so that when a tooth surface of the worm and that of the worm wheel are brought into contact with each other, the rotating shaft is moved in at least one of the axial direction and the radial direction relative to the housing by deforming the elastic body.