Control equipment for fire-fighting cars and fire-fighting vehicles

摘要

PROBLEM TO BE SOLVED: To provide a control device of a fire-fighting and utility truck capable of being further quickly changed over and operated in a utility truck having at least two types of devices of a crane device and a winch device using a common hydraulic circuit as a drive system, and a fire-fighting device operated using hydraulic pressure.SOLUTION: The fire-fighting and utility truck uses a hydraulic valve selector switch satisfying both of the following requirements (a) and (b). The requirement (a): hydraulic valve selector switches correspond to at least two types of hydraulic actuators respectively and are provided on or near the respective instruments of the hydraulic actuators. The requirement (b): the hydraulic valve selector switches comprise momentary switches, transmit electric signals for holding a self-holding circuit of one hydraulic actuator of the at least two hydraulic actuators corresponding to the switches, and transmit electric signals for releasing the self-holding circuit to at least one type of the other hydraulic actuator, thereby changing over the hydraulic valve.