| 摘要 |
PURPOSE:To hold a straight movement attitude accurately through simple operation by detecting the steering angle position of a vehicle body and stopping swiveling operation when a steering control means is set to a straight movement state. CONSTITUTION:The main body 4 of the vehicle 2 has the front part 6 and rear part 8 linked together pivotally through a pin 10, and a couple of fluid cylinder mechanisms 12a and 12b for steering are interposed between both parts. Those mechanisms 12a and 12b constitute a fluid pressure controlling means for a main-directional control valve 22, etc., and are controlled by a receiver on the basis from an operation signal from the steering control means. This main body 4 is provided with a steering angular displacement detector to detects its steering angle, and swiveling operation is stopped under the straight movement attitude control of the steering control means by a straight movement position signal from said detector to hold the straight movement attitude of the vehicle 2. |
