PROBLEM TO BE SOLVED: To solve a problem that, in a tractor mounted with a work device including a seeder tape to be wound out following work-traveling, even if the seeder tape decreases gradually and is then used up, an operator still work-travels without noticing it, requiring the work to be performed once again.SOLUTION: In a tractor in which a work device 2 is mounted to a machine body, and a wound body 51 wound with a seeder tape 51a holding seeds at constant intervals is arranged on the work device 2, following work travel of the tractor, the seeder tape 51a is wound out from the wound body 51, and detection means 53 detecting rotation speed of the wound body 51 is arranged. The detection means 53 is connected to an input side of control means 100, alarm means 60 is connected to an output side of the control means 100, and when rotation of the wound body 51 gets into a generally stopped state, the alam means 60 delivers an alarm.COPYRIGHT: (C)2016,JPO&INPIT【課題】トラクタに作業装置を装着し、この作業装置に種紐を設け、作業走行につれて種紐が巻き出される構成で、作業走行につれて種紐が次第に少なくなって種紐が無くなっても運転者は気がつかずに作業走行してしまい、再び作業をし直さなければならないという課題がある。【解決手段】機体に作業装置2を装着し、種子を一定間隔で保持している種紐51aを巻いた巻体51を作業装置2に設けたトラクタにおいて、トラクタの作業走行につれて巻体51から種紐51aが巻き出される構成とし、巻体51の回転数を検出する検出手段53を設けたことを特徴とするトラクタの構成とする。そして、制御手段100の入力側に検出手段53を接続し、制御手段100の出力側に警報手段60を接続し、巻体51の回転が略停止状態になると、警報手段60で警報を出す構成とする。【選択図】図7
