ACTUATION CONTROL DEVICE FOR GARBAGE DISCHARGE PLATE IN GARBAGE COLLECTING CAR

PROBLEM TO BE SOLVED: To prevent the inside of an extension actuating circuit of a discharge plate driving extensible-contractible cylinder from being excessively put under high pressure by arranging an orifice part in an oil passage to communicate a hydraulic pump and an extension actuating chamber with each other when a directional control valve is switched to an advance switching position. SOLUTION: A directional control valve V can be selectively switched to a left side advance switching position 5A to advance a garbage discharge plate by communicating an extension side operating fluid chamber 4a of an extensible-contractible cylinder C with a hydraulic pump (p) and a contraction side operating fluid chamber 4b with an oil tank T, a right side retreat switching position 5B to retreat the garbage discharge plate by communicating the extension side operating fluid chamber 4a with the oil tank T and the contraction side operating fluid chamber 4b with the hydraulic pump (p) and a neutral position 5N. An orifice part O to regulate a flow rate of operating fluid proceeding to the extension side operating fluid chamber 4a from the hydraulic pump (p), is arranged in the middle of an oil passage to communicate the hydraulic pump (p) and the extension side operating fluid chamber 4a with each other when the directional control valve V is switched to the advance switching position 5A.