PROBLEM TO BE SOLVED: To simply change over furrowing operation and tilling operation in a walking type power tiller provided with a ridging body (furrower) as an issue.SOLUTION: The walking type power tiller includes: a tillage rear cover (B) installed at the rear end of a tillage upper cover (11) for covering the upper side of tillage tines (10) the tillage rear cover (B) formed of the ridging body (20) in the right and left central part and tillage cover bodies (21) on both the right and left sides of the ridging body (20) and the ridging body (20) and tillage cover bodies (21) each separately rotatably composed with a rotating shaft (30) which is a transverse shaft center provided in the upper part as a fulcrum, composed to connect the tillage cover bodies (21) to the ridging body (20) during tillage operation, release the connection of the tillage cover bodies (21) to the ridging body (20) during ridging operation, and connect the tillage cover bodies (21) on both the right and left sides with a connecting body (22).COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明は、培土板を備えた歩行型の耕耘機において、培土作業と耕耘作業とを簡単に切り換えることを課題とする。【解決手段】耕耘爪(10)の上方を覆う耕耘上部カバー(11)の後端に耕耘後部カバー(B)を設け、該耕耘後部カバー(B)は左右中央部の培土体(20)と培土体(20)の左右両側の耕耘カバー体(21)とで形成し、培土体(20)と耕耘カバー体(21)は上部に設ける横軸芯の回動軸(30)を支点にそれぞれ別個に回動可能に構成し、耕耘作業時には耕耘カバー体(21)を培土体(20)とを連結し、培土作業時には耕耘カバー体(21)を培土体(20)の連結を解除する構成とし、左右両側の耕耘カバー体(21)は連結体(22)で連結する構成とした。【選択図】 図5
