| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular variable steering device capable of increasing the turning angle when the steering angle is increased without using any rack of irregular pitch. SOLUTION: The vehicular variable steering device to perform the steering by changing the direction of wheels by operating a tie rod and to increase the turning angle when the steering angle is increased comprises rack shafts 202, 212 provided with a helical rack and linked to a tie rod, helical pinions 301, 311, 361 which are engaged with the helical rack, and supported movably in the axial direction, and provided with the steering rotational force to move the rack shafts in the axial direction, and pinion guide mechanisms 304-307 operated to move the helical pinion in the axial direction according to the rotation of the helical pinion. The rack-pinion system may be changed to the worm-worm wheel system, or the screwed rack system. COPYRIGHT: (C)2006,JPO&NCIPI |
