PROBLEM TO BE SOLVED: To solve the problem with the fixed type cleaning brush of a dispensing roller wherein it cannot reach trash caught in the bottom of each dispensing groove and is hard to clean and the trash accumulating in the dispensing grooves reduces the capacity of the dispensing grooves, making it impossible to sow a preset amount of seeds.SOLUTION: In a seeding machine, a dispensing roller 2 having dispensing grooves 1 formed on its rotating peripheral surface is mounted on a shaft 4 in a dispensing chamber 3 and is rotated so that seeds are dispensed to a discharge chamber 7 therebelow from a hopper 5 thereabove through a supply chamber 6 as they are fitted into the dispensing grooves 1. A cleaning brush 10 comprising a plurality of unit brushes 8 arranged along the direction of width of the dispensing grooves 1 and independently snapped by springs 9 so that they can be pushed into the dispensing grooves 1 is provided in the discharge chamber 7 of the dispensing roller 2.COPYRIGHT: (C)2013,JPO&INPIT【課題】繰出ロールの清掃ブラシが固定式であると、繰出溝の奥底に詰まった夾雑物に届かず、掃除し難く、繰出溝に蓄積する夾雑物により繰出溝の容量が減ってしまい、設定した量の種子が播種されなくなる。【解決手段】回転周面に繰出溝1を形成した繰出ロール2を繰出室3に軸装4回転して、種子を上側のホッパ5から供給室6を経て前記各繰出溝1へ勘合させながら下側の排出室7へ繰出す播種機において、前記繰出ロール2の排出室7に、繰出溝1幅の方向に亘って複数個の単位ブラシ8を並べて、各スプリング9によって独立的に弾発させて繰出溝1内へ押込可能の清掃ブラシ10を設けて構成する。【選択図】 図3