PROBLEM TO BE SOLVED: To improve interlocking properties between a work part and an extension work part in a working machine capable of changing over a part thereof between a storage state and a working state.SOLUTION: The working machine includes: a first work part that includes a first cover member provided on a rear side of a first work rotor for rotating a working claw, and a first land-leveling member rotationally connected to the first cover member a second work part that includes a second cover member connected to the first work part so as to change over between a storage state and a working state and provided on the rear side of a second work rotor for rotating the working claw in the working state, and a second land-leveling member rotationally connected to the second cover member and a connecting part disposed at the first land-leveling member and the second land-leveling member, and including a first stopper and a locking member. In the working state, the locking member is pressed in a first direction, and the first stopper has an inclined plane inclined to a surface orthogonally crossing to the first direction.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2019,JPO&INPIT【課題】収納状態と作業状態とを切り替え可能な作業機において、作業状態における作業部と延長作業部との間の連動性を向上させること。【解決手段】作業機は、作業爪を回転させる第1作業ロータの後方に設けられた第1カバー部材、および第1カバー部材に回動可能に接続された第1整地部材を有する第1作業部と、収納状態と作業状態とを切り替え可能に第1作業部に接続され、作業状態において作業爪を回転させる第2作業ロータの後方に設けられた第2カバー部材、および第2カバー部材に回動可能に接続された第2整地部材を有する第2作業部と、第1整地部材および第2整地部材に配置され、第1ストッパおよび係止部材を含む連結部と、を有し、作業状態において、係止部材は、第1方向に押し付けられ、第1ストッパは、第1方向に直交する面に対して傾斜する傾斜面を有する。【選択図】図4
