PROBLEM TO BE SOLVED: To prevent elevation of a planting machine to which an operator does not intend, in a transplanter improved in operability by installing an elevation operating device for elevating a planting implement to a grip part of a speed change lever.SOLUTION: A transplanter is equipped with a planting implement 7 connected to be liftable to the rear part of a travelling machine body 3, a control unit 23 carrying out lift control of the planting implement 7 and an elevation operating device 24 installed to the grip part 18a of the speed change lever 18 for operating to change speed and carrying out the elevation operation of the planting implement 7. In the transplanter, a speed detection means 41 for detecting travel speed is installed, the control unit 23 has a regulation mode for regulating elevation action of the planting implement 7 by elevation operation of the planting implement 7 of the elevation operation device 24 and, when detected that the travel speed reaches a predetermined speed or more by the speed detection means 41, the restriction mode is moved to a permission mode for permitting the elevation action of the planting implement 7 by elevation operation of the planting implement 7 of the elevation operation device 24.COPYRIGHT: (C)2010,JPO&INPIT【課題】植付作業機の上昇操作を行う上昇操作具を変速レバーの把持部に設けて操作性を向上させた移植機において、オペレータの意図しない植付作業機の上昇を防止することを課題とする。【解決手段】本発明は、走行機体3の後部に昇降可能に連結された植付作業機7と、植付作業機7の昇降制御を行う制御部23と、走行変速操作を行う変速レバー18の把持部18aに設けられて植付作業機7の上昇操作を行う上昇操作具24とを備えた移植機において、走行速度を検出する速度検出手段41を設け、制御部23が、上昇操作具24の植付作業機7上昇操作による植付作業機7の上昇作動を規制する規制モードを有し、速度検出手段41によって走行速度が所定速度以上になったことが検出されると、上記規制モードから、上昇操作具24の植付作業機7上昇操作による植付作業機7の上昇作動を許容する許容モードに移行する。【選択図】図10
