| 摘要 |
<p>PURPOSE:To reduce manufacturing cost by composing a device in which the rotation of an electric motor is transmitted to a shaft via a worm gear and a worm wheel integral left and right, and rear wheels are steered via a tie rod, etc., by the eccentric motion of an operation part fitted to the shaft. CONSTITUTION:A worm gear 3 rotatably supported in a housing 5 is fixed to the rotation axis of an electric motor 1, and a pair of worm wheels 11 and 13 rotatably supported in the same housing 5 is engaged with a symmetric position across the gear 3. A potentiometer 20 is connected to the upper end of each shaft 15 and 17 integral with each worm wheel 11 and 13 via an Oldham's coupling 27. Eccentric pins 31 and 33 are fixed to the end surface on an opposit-potentiometer 29 side of each shaft 15 and 17, each of eccentric pins 31 and 33 is connected to tie rods 37 and 37 integrally providing ball joints 35 so as to make each tie rod 37 movable in an axis line direction, and rear wheels 39 are steered by the axis line direction movement of each tie rod 37.</p> |
