| 摘要 |
PURPOSE:To prevent the occurrence of an error by a tilt in the longitudinal direction of a machine body or a working machine by fitting a plate of a tilt sensor in a deviated state in the proceeding direction side with respect to the width direction of the working machine with a plane view. CONSTITUTION:The tilt sensor 20 is fitted to the upper part of a rotary cultivator. This sensor 20 is the electrostatic capacity type tilt sensor and electrode plates 23, 24 and 25 of three layers before and behind are provided at the intervals to the inside of a case 21. Spacers 26 and 26' are interposed in a front part of these interval part and electrode plate 23 and a rear part of the electrode plate 25 and fluid storing spaces 28 and 28' circular with the front view are formed to the interval part of the electrode plates 23-25 by these and silicon oil 27 is filled by about half therein. In this way, two capacitors A and B (C and D) constituted of the layers 23 and 24 (24 and 25) are provided respectively in the sensor 20 and these are connected mutually with a bridge circuit. When the sensor 20 is tilted alpha in the horizontal direction, either of the capacitors A and C, and B and C become low and the electrostatic capacity at the side is changed and this is measured with the bridge circuit and the tilt is detected.
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