| 摘要 |
PROBLEM TO BE SOLVED: To provide a working vehicle capable of carrying out attaching operation of an external implement to the vehicle as simply as possible. SOLUTION: In the working vehicle, valve bodies 50 and 51 are each equipped with an opening 65 for first input made to communicate from a pump 60 to a relief valve 54, an opening 61 of oil passage (a) for first output feeing out an pressure oil in which pressure is kept by the relief valve 54 to an external joistic valve 55, an opening 62 of oil passage (b) for second input taking the pressure oil returned from the oil passage (a) for first output again and an opening 66 of oil passage (b) for second input feeing out pressure oil from the opening 62 of oil passage (b) for the second input to a control valve 73, and a lid body 34 attached in stuck type to these valve bodies 50 and 51 and equipped with an oil passage (c) to which both of the oil passage (a) and the oil passage (b) are directly connected without passing through the valve 55 is provided, and these valve bodies 50 and 51 and the lid body 34 are constituted so as to be changeable to a state attaching these valve bodies 50 and 51 and the lid body 55 in stuck type without passing through the valve 55 and a state attaching these valve bodies 50 and 51 in stuck type through the valve 55. COPYRIGHT: (C)2005,JPO&NCIPI
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