| 摘要 |
PROBLEM TO BE SOLVED: To provide a failsafe device for a constant speed travel device surely canceling when there is some abnormality in the constant speed travel device or controlled stop and also holding the state. SOLUTION: The constant speed travel device comprising a command signal input means 2, a cancel signal input means 3, a motor type actuators with clutch 8, 10, a CPU 6, and a latch means 9 outputs a signal making the actuator 8 return to the initial position in inputting a cancel signal or detecting something abnormal by the CPU 6, actuates the latch means 9 to turn off the clutch 10, and holds the latch means 9 in its state unless executing a prescribed procedure. |
