PROBLEM TO BE SOLVED: To provide a ridge-forming machine which has a ridge-forming tool for forming ridges with soil tilled with a rotary tiller located behind the tiller, is attached to the rear portion of a travel member, is moved on a field, forms ridges on the field, and can repair the collapsed upper and lateral sides of a ridge formed, when forming a ridge adjacent to the formed ridge, while part of it overlaps the formed ridge.SOLUTION: This ridge-forming machine includes an auxiliary ridge-forming tool 19 for repairing the collapsed upper and lateral sides Ra, Rb of the formed ridge R2, when the ridge R1 is formed adjacent to the formed ridge R2, while making a part of it overlap the formed ridge R2.COPYRIGHT: (C)2009,JPO&INPIT【課題】 ロータリ耕耘装置の後方に、該ロータリ耕耘装置で耕耘された土で畝を成形する畝成形具を備えると共に、走行体の後部に装着されて圃場を移動しながら該圃場に畝を成形する畝成形機において、既成形畝に一部オーバーラップさせながら該既成形畝に隣接する畝を成形する際に、該既成形畝の、崩された側の上面及び側面を修復することができる畝成形機を提供する。【解決手段】 既成形畝R2に一部オーバーラップさせながら該既成形畝R2に隣接する畝R1を成形する際に、前記既成形畝R2の、崩された側の上面Ra及び側面Rbを修復する補助畝成形具19を設ける。【選択図】図1
