To provide a tractor with which structure is simplified, the number of parts is reduced and operability is improved by changing the operating speed of external hydraulic equipment corresponding to the manipulated variable of lever from an operation stop area.
A mode switching means is provided for switching control modes more than two and in the 1st control mode, the elevation of working machine is controlled corresponding to the operation of position lever 22. In the 2nd control mode, on the other hand, an external hydraulic mechanism selectively connected to a traveling machine body is controlled corresponding to the operation of prescribed manipulator, and this 2nd control mode is set with external hydraulic equipment control for controlling the external hydraulic equipment such as a dump cylinder 18 of dump trailer 14 connected to a hydraulic take-out part 10 corresponding to the operation of position lever 22. At the same time, 1st and 2nd operation areas for operating the external hydraulic equipment respectively in opposite directions and the operation stop area interposed between these operation areas are set to the operation area of position lever in external hydraulic equipment control state and further, the operating speed of external hydraulic equipment is changed corresponding to the manipulated variable of lever from the operation stop area.
| JP3509622 | RICE TRANSPLANTER |
| JPH02163002 | TILLING DEPTH CONTROLLING APPARATUS FOR FARM TRACTOR |
NOJIMA TATSUHIKO
KIMURA SHIGEHARU
TAMURA TOMOSHI
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