To provide a hydraulic system that allows attaching/detaching of an electric connector in parallel with that of the hydraulic system.
In a joint attaching/detaching device of a hydraulic system between a vehicle and a working machine in a working machine vehicle where the working machine detachably attached to the vehicle is driven by a hydraulic pressure from a hydraulic drive system of the vehicle, a vehicle side joint housing 10a is fixed to the vehicle so that a first attachment/detachment surface 13 faces upward and is inclined, a first terminal E1 of an electric connector is disposed on a higher part of the first attachment/detachment surface 13, and a plurality of first joints P1, N1, T1 connected to the hydraulic drive system of the vehicle by a plurality of hydraulic hoses are disposed on a part lower than the first terminal E1.
KUMAZAWA NAOKI
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| JP2001263204A | 2001-09-26 | |||
| JPS6419646U | 1989-01-31 | |||
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| JPH02109279A | 1990-04-20 | |||
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Tsuyoshi Kumano
Hideka Tanaka