PROBLEM TO BE SOLVED: To provide a harvester for harvesting crops cultured on a ridge covered with a mulch sheet while preventing winding of the mulch sheet to a side of a soil knock-off wheel.SOLUTION: The harvester 1 includes a soil knock-off part 11 to knock off soil on a root of the crop with the soil knock-off wheel 36 under the middle part of a transfer conveyor 7 to transfer the crop backward while clamping the leaf and stem of the crop and pulling off the crop, and a sheet pressing part 9 to prevent winding of the mulch sheet S to the side of the transfer conveyor 7 by pressing the mulch sheet S with a roller 46. The winding of the mulch sheet S to the side of the soil knock-off wheel 36 is prevented by contacting the roller 46 with the soil knock-off wheel 36 to restrict the lifting motion and rotating the roller 46 downward reverse to the rotation of the soil knock-off wheel 36 when the roller 46 of the sheet pressing part 9 is lifted from a sheet rolling posture to a winding prevention posture.COPYRIGHT: (C)2012,JPO&INPIT【課題】マルチシートで覆った畝に栽培される作物を、土落輪側へのマルチシートの巻き付きを防止しながら収穫する収穫装置を提供する。【解決手段】葉茎部を挟持して引き抜きながら後方に搬送する搬送コンベア部7の中途部下方で、土落輪36によって根部の土を振るい落とす土落部11と、マルチシートSをローラ46で押接し搬送コンベア部7側への巻き付きを防止するシート押え部9とを備えた収穫装置1であって、シート押え部9のローラ46が、シート転圧姿勢から上動して巻き込み防止姿勢になるとき、ローラ46を土落輪36に接当させて上動を規制すると共に、ローラ46を土落輪36と逆向きの下向き回転をさせることにより、マルチシートSの土落輪36側への巻き付きを防止するように構成した。【選択図】図1
