| 摘要 |
PURPOSE:To prevent plows from sticking into the ground by installing an elevating mechanism which allows each of wheels to be elevated or lowered independently so as to permit the wheel on the downhill side to be lowered with a reference at the ground contacting point of the wheel on the uphill side of an inclined ground in keeping a cultivator level. CONSTITUTION:The cultivator 1 allows wheels 4a and 4b to be driven by an engine 2 installed on the front side by way of a transmission 3, simultaneously, permits a rotary cultivating device 5 to be driven. In this case, the wheels 4a and 4b are installed on a transmission case 6a and 6b while they can be elevated as required by means of a hydraulic cylinder 7a and 7b which composes an elevating mechanism A. And the hydraulic cylinder 7a and 7b is operated by pressurized oil from a hydraulic pump 9 driven by the engine 2. Pressurized oil from the hydraulic pump 9 is controlled in feeding based on signals detected by a tilt sensor 10 installed on the cultivator. This configuration allows the wheel on the downhill side to be lowered with a reference at a ground contacting point of the wheel on the uphill side of a titled ground so as to keep the cultivator level. |
