| 摘要 |
PURPOSE:To perform rice planting work with stable attitude assured for the operator by furnishing an idling wheel which has possibility to change its position between upper accomodation and lower ground working positions while the machine is held afloat by a sliding grounder member adjustable with its elevating and sinking. CONSTITUTION:A pair of levers 5 stretching to fore and back, for sliding in contact with the hard ground, are supported on the machine body rotatably around its transverse shaft 11 behind the wheel which has possiblity to be driven and rotated, forming a sliding grounder. This lever 5 is swung in the vertical direction by an oil hydraulic cylinder 10. The transverse shaft 11 bears a swing arm 12 oscillatingly in the vertical direction and an idling wheel 13 is fixed to the idle end of this arm 12. This wheel 13 is arranged so that it can shift from the upper housing position to lower grounding position or vice versa and be fixed at each position by a pin 16. |
