PROBLEM TO BE SOLVED: To make favorable the fore-and-aft balance of a machine body, and to facilitate the exchange of a tail wheel at the time of switching of tillage work and ridging work, in a walking-type tiller.SOLUTION: A connecting support face (41c) of a connecting part (41) with respect to the longitudinal direction of a tail wheel support rod (31) is formed into a front-downward inclined shape. At the time of movement of a walking-type tiller, the connecting part (41) is attached to a lower end of a resistance rod (13), a tail wheel is oriented downward, and the tail wheel support rod (31) is inclined rear-downwardly. At the time of ribbing work, the tail wheel (32) is attached to a tail wheel holder (35) downwardly, and the tail wheel support rod (31) is attached to the tail wheel holder rear-downwardly, and at the time of tillage work, the tail wheel (32) is attached to the tail wheel holder (35) upwardly, and the tail wheel support rod (31) is attached to the tail wheel holder rear-upwardly.COPYRIGHT: (C)2015,JPO&INPIT【課題】歩行型耕耘機において機体の前後バランスを良くし、耕耘作業と培土作業の切り換え時の尾輪の付け換えを容易にする。【解決手段】尾輪支持棒(31)の長手方向に対して連結部(41)の連結支持面(41c)を前下がり傾斜状に構成する。歩行型耕耘機の移動時には抵抗棒(13)の下端部に連結部(41)を取り付け尾輪(32)を下方にし尾輪支持棒(31)を後下がり傾斜にし、畝立て作業時には尾輪ホルダ(35)に尾輪(32)を下方にし尾輪支持棒(31)を後下がり傾斜に取り付け、耕耘作業時には尾輪ホルダ(35)に尾輪(32)を上方にし尾輪支持棒(31)を後上り傾斜に取り付ける。【選択図】図1