| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation structure for working apparatus of working vehicle, provided with an attitude-control means for outputting an operation signal and making an actuator operate for making a prescribed attitude of the working apparatus maintained, and which is effective for preventing damages to the actuator, when the actuator is operated at high speed, according to the operation signal of the attitude-control means. SOLUTION: The operation structure is provided with the attitude-control means for making an actuator 38 operate by an operation signal, outputted to make a prescribed attitude of the working apparatus maintained, and the actuator 38 is operated at high speed, according to the operation signal of the attitude-control means. The operation signal of the attitude-control means that corresponds to the preset operation speed of the actuator 38 is set as the preset operation signal. The actuator 38 is operated, at working speed that is slower than the working speed attained by the operation signal of the attitude-control means, when the operation signal of the attitude-control means is increased to the high-speed operation side, exceeding the preset operation signal. COPYRIGHT: (C)2008,JPO&INPIT
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