PROBLEM TO BE SOLVED: To improve workability during a tilling operation by sufficiently providing resisting force to the tractive force of a tilling device by the wheels in a walking-type working machine that has a constitution of shifting an operation state to a movement state or reversely the movement state to the operation state without attaching wheels to a body or removing the wheels.SOLUTION: In the walking type working machine 1 equipped with a tilling device 4 at the front of a machine body, the wheels 8 are attached to the rear of the machine body so as to adjust the vertical position and a rotation resistance providing means 40 for providing the wheels 8 with rotation resistance is provided.COPYRIGHT: (C)2009,JPO&INPIT【課題】車輪を車体に取り付けたり、取り外したりすることなく、作業状態から移動状態へ、あるいは逆に移動状態から作業状態への移行を可能とする構成で、該車輪にて耕耘装置の牽引力に対する抵抗力を十分に与えて、耕耘作業時における作業性の向上を図る。【解決手段】機体前部に耕耘装置4を備えた歩行型作業機1において、機体後部に車輪8を上下位置調節可能に取り付け、該車輪8に回転抵抗を付与可能とする回転抵抗付与手段40を設けた。【選択図】図4