| 摘要 |
PURPOSE:To travel a working machine along an operating line, by setting a sensing member to detect a left and right position relationship between a furrow by sleights and the working machine and a controlling means to travel a driving front wheel based on the detected result. CONSTITUTION:A driving front wheel 6 is set at the central position of left and right of a working machine, tail sleighs 12 are laid symmetrically with respect to the center of the machine and at a position standing astride four lines of rice seedling. An automatic operation controlling means D consists of sensing members 15 set in front of the sleighs 12, respectively, a selecting means 18 to receive only a signal from the sensing members 15, a control device 19 to judge an operation direction based on the signal, a driver 20 to amplify an output signal, a solenoid valve 21 to be operated by the signal and a hydraulic cylinder 22 for operation to oscillate a mission case 3. Consequently, the machine can be traveled along a furrow clearly formed along a working line.
|
