| 摘要 |
<p>A motor-operated tilt steering device including a fixed bracket (1) fixed to the body of a vehicle and supporting a lower steering shaft (4) by means of a lower column (2), a tilt bracket (5) pivotally movably attached to the fixed bracket and supporting by an upper column (7) an upper steering shaft (8) connected to the lower steering shaft by a universal joint (10), a tilting electric motor (16) attached to the fixed bracket, and conversion means for converting the rotation of the motor (16) to the pivotal movement of the tilt bracket. The conversion means comprises a screw shaft (13) attached to the fixed bracket in parallel to the motor, a timing belt coupling the motor to the screw shaft, a screw nut (32) in meshing engagement with the screw shaft, and an eccentric member coupling the screw nut to the tilt bracket.</p> |
