PROBLEM TO BE SOLVED: To provide a reaping height detector and a reaping height controller for a combine harvester in which the reaping height detector is disposed in a relatively narrower space so that the detector may not be damaged by an external force acting on a grounding body in front/back and left/right directions while following the front-back and left-right motions of a reaping part.SOLUTION: In the reaping height detector, a first supporting shaft (1) is horizontally disposed to the lower part of a grass dividing body (42) provided to a reaping device (27) a first supporting body (2) is vertically-slidably and rotatably attached to the first supporting shaft (1) a second supporting body (4) is rotatably attached to the second supporting shaft (3) disposed to the rear side part of the first supporting body (2) in directions on the front and back the base part of a grounding body (6) extending obliquely downward and backward is attached to the third supporting shaft (5) attached to the second supporting body (4) in directions on the right and left and an angle sensor (10) for detecting the angle of the rotation of the third supporting shaft (5) due to the vertical shaking of the grounding body (6) is disposed.COPYRIGHT: (C)2013,JPO&INPIT【課題】比較的狭いスペースに刈高さ検出装置を設けて、刈取部の前後左右の動きに追従して接地体に前後左右方向から作用する外力で刈高さ検出装置が破損しないようにしたコンバインの刈高さ検出装置及び刈高さ制御装置を提供する。【解決手段】刈取装置(27)に備えた分草体(42)の下部に上下方向の第一支持軸(1)を設け、この第一支持軸(1)に対して第一支持体(2)を上下スライド自在及び回動自在に取り付け、この第一支持体(2)の後側部に設けた前後方向の第二支持軸(3)に対して第二支持体(4)を回動自在に取り付け、この第二支持体(4)に設けた左右方向の第三支持軸(5)に対して斜め後下方へ延出する接地体(6)の基部を取り付け、この接地体(6)の上下揺動による第三支持軸(5)の回動角度を検出する角度センサ(10)を設けたコンバインの刈高さ検出装置【選択図】図2
