| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic circuit device of a crane truck capable of controlling supply of a hydraulic fluid to an air conditioning portion with a simple circuit configuration without erroneously operating an actuator in being applied to various crane trucks.SOLUTION: A hydraulic circuit device of a crane truck includes: a common valve block 1 which is connected to a hydraulic pump P, to which a hydraulic fluid is supplied from the hydraulic pump P, and which controls flow of the hydraulic fluid to a common portion to operate the common portion loaded on crane trucks in common; a valve block 3 for an actuator connected to an auxiliary actuator A selectively loaded, and controlling flow of the hydraulic fluid to the auxiliary actuator A; and a valve block 2 for air conditioning, connecting the common valve block 1 and the valve block 3 for an actuator, connected to a hydraulic motor M to drive a compressor S of an air conditioning portion R, and controlling the flow of the hydraulic fluid supplied from the hydraulic pump P through the common valve block 1 to the valve block 3 for an actuator and the hydraulic motor M.SELECTED DRAWING: Figure 1 |
