PROBLEM TO BE SOLVED: To provide a walking type transplanting machine in which a row of seedling in two ridges (two rows in total) can be planted, respectively, and two sensor rollers are provided and proper elevation control of a machine body is made possible, and further the surface pressure to a ridge surface of two sensor rollers can be equalized or reduced by half so as not to break the ridges.SOLUTION: A walking type transplanting machine is configured such that a control unit controls an actuator based on detection results of a detection unit for detecting irregularities of the upper surface of ridges, and the controlled actuator lifts and lowers a machine body provided with a pair of left and right planting units for planting seedlings in the ridges, and thereby the planting depth of the seedlings to the ridges by the planting unit is kept constant. The detection unit comprises a roller support attached on a machine body in a vertically oscillating manner, a balance rod with left and right sides formed in a vertically oscillating manner by pivoting a central part in the roller support, and a pair of left and right sensor rollers attached to the left side end and right side end of the balance rod. The pair of left and right sensor rollers is brought into abutment on the upper surface of the ridges, and thereby the irregularities on the upper surface of the ridges are detected.COPYRIGHT: (C)2015,JPO&INPIT【課題】2条の畝にそれぞれ1条(計2条)の苗を植付け可能とするとともに、2つのセンサローラを設けて適切な機体の昇降制御を可能とし、しかも、畝が崩され難いように2つのセンサローラの畝面への面圧を均等化させることができ、かつ、半減化させることができる歩行型移植機を提供すること。【解決手段】畝の上面の凹凸を検出する検出部の検出結果に基づいて制御部がアクチュエータを制御動作させて、制御動作されたアクチュエータが畝に苗を植付ける左右一対の植付部を設けた機体を昇降動作させることで、植付部による畝への苗の植深を一定に保つようにした歩行型移植機であって、検出部は、機体に上下揺動自在に取り付けたローラ支持体と、ローラ支持体に中央部を枢支することで左右側部を上下揺動自在となした天秤桿と、天秤桿の左側端部及び右側端部に取り付けた左右一対のセンサローラと、を具備し、畝の上面上に左右一対のセンサローラを当接させて、畝の上面の凹凸を検出するようにした。【選択図】図1
