PROBLEM TO BE SOLVED: To prevent a grounding sensor for controlling the reaping height by a combine harvester from being broken even when a machine body is driven backward while grounding the sensor on a field.SOLUTION: The sensor (8) for detecting the angle of a sensor-attached body (1) turned in the upper or lower direction based on a reaping device by the grounding of the grounding body (3) is obtained by axially supporting the front part of the sensor-attaching body (1) by a horizontal shaft (1a) at the lower part of the reaping device so as to be freely turnable in the upper and lower directions, and axially supporting the grounding body (3) grounding on the field surface by a vertical shaft (4) at the rear part of the sensor-attaching body (1) so as to be turned in the right and left directions. The grounding body (3) is formed into a belt bent in an arc shape in the side view, and a position at the rear side of the grounding point of the grounding body (3) is set apart from the field surface. The rear part of the grounding body (3) is cut into a bamboo blind.COPYRIGHT: (C)2012,JPO&INPIT【課題】コンバインの刈り高さ制御用の接地センサを、圃場に接地したまま機体を後進させても破損しないものとする。【解決手段】刈取装置の下部にセンサ取付体(1)の前部を横軸(1a)で上下回動自在に軸支し、該センサ取付体(1)の後部に圃場面に接地する接地体(3)を縦軸(4)で左右回動自在に軸支し、該接地体(3)の接地によってセンサ取付体(1)が刈取装置に対して上下回動した角度を検出するセンサ(8)とする。また、接地体(3)を側面視で円弧状に湾曲した帯状体とし、該接地体(3)の接地点から後方の部位を圃場面から離間させる。また、接地体(3)の後部を簾状に切り欠く。【選択図】図4
