| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of a risk due to the driving of a hydraulic equipment connected to pressure oil connecting holes, or the like, on the left and right sides of a fire engine body at the same time by allowing the hydraulic equipment to be driven by operating a selective operation device on the left side of the fire engine body when the hydraulic equipment is connected to a pressure oil connecting hole, or the like, on the left side of the fire engine body and allowing the hydraulic equipment to be driven by operating a selective operation device on the right side of the engine body when the hydraulic equipment is connected to the pressure oil connecting hole, or the like, on the right side of the engine body, and by making the selective operation device on the opposite side of the engine body inoperable even if an operator tries to operate the selective operation device on the opposite side while driving the hydraulic equipment on one side. SOLUTION: A hydraulic pump P driven by the engine of the fire engine is mounted on a hydraulic actuation device in the fire engine, and the pressure oil from the hydraulic pump is divided into two hydraulic circuits 2L and 2R. Each hydraulic equipment mounted on the fire engine is driven by each hydraulic circuit. Selective switching device A and A' for supplying a pressure oil from the hydraulic pump for either one o the two hydraulic circuits selectively are mounted between the hydraulic pump and the two hydraulic circuits, respectively, and also, selective operation device 12L and 12R for selectively actuating the selective switching devices are mounted on the two hydraulic circuits, respectively.
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