| 摘要 |
PURPOSE:To facilitate operation performance by arranging an advance pedal and a retreat pedal in parallel and connecting the both pedals with an accelerating device through an interlocking operation mechanism for operating the accelerating decide to a high speed side. CONSTITUTION:When an advance pedal 25 and a retreat pedal 26 which are arranged in parallel are stepped ON, limit switches 37 and 38 are turned ON, and a pressurized oil feeding valve is switched to an advance side or retreat side, and the advance or retreat drive state is generated. Further, a cam 30 is turned according to the stepping-ON quantity, and an accelerator device 35 is operated to a high speed side through an interlocking operation mechanism 45. Therefore, advance and retreat are carried out only by the stepping-ON operations of the pedals 25 and 26, and the traveling speed can be increased and reduced according to the stepping-ON quantity. Further, in the traveling on a road, traveling is performed by setting an accelerating lever 23 to a prescribed position and lightly stepping ON the advance pedal 25. |
