| 摘要 |
<p>PURPOSE:To restrict the maximum steering angle of the rear wheels in the same phase as the front wheels, and secure the driving response without losing a capability of small sharp turns, by composing a rotation pickup piston, a rotation input piston, and racks to gear therewith in variable gear mechanisms respectively. CONSTITUTION:While a straight rack 7 furnished at the front side of one half of a rack shaft 6 is geared to a pinion 5 of a pinion shaft 4 linked to the steering shaft, a pinion 16 of a rotation pickup pinion shaft 15 is geared to a variable rack 8 with a different pitch furnished at the lower side of the other half of the rack shaft 6, to compose the first variable gear ratio mechanism I. And a variable rack 25 is furnished at the lower side of a rack shaft 24 to gear with a pinion 22 of a rotation input pinion shaft 21 which is linked to the pinion shaft 15, to form the second variable gear mechanism II. Therefore, even though the rear wheel turning angle to the handle steering angle is made larger, the maximum steering angle of the wheels in the same phase as the front wheels can be restricted.</p> |
