PROBLEM TO BE SOLVED: To provide a root vegetable harvester which can automatically lift the conveyance-starting end portion of a pulling conveyer in response to the unevenness of a field surface.SOLUTION: In the root vegetable harvester, a rotating wheel 203 is disposed on the conveyance-starting end side of a pulling conveyer 24, a detection member 204 is provided for detecting the rise of the rotating wheel 203, an elevation member 23 is provided for elevating the conveyance-starting end side of the pulling conveyer 24, when the detection member 204 detects the rise of the rotating wheel 203, a rotatable rotating wheel arm 202 having the rotating wheel 203 and an actuator 207 are disposed on the conveyance-starting end side of a pulling conveyer 24, a detection member 204 having a first contact member 206 is disposed on one of the actuator 207 and the rotating wheel arm 202, and a second contact member 207a is disposed on the other, wherein the first contact member 206 is contacted with the second contact member 207a to detect the rise of the rotating wheel 203 with the detection member 204, and the actuator 207 can be extended or contracted to adjust the contact position of the first contact member 206 with the second contact member 207a.COPYRIGHT: (C)2011,JPO&INPIT【課題】圃場面の凹凸に対応して引抜搬送装置の搬送始端部を自動的に上昇させる根菜類収穫機を提供する。【解決手段】引抜搬送装置24の搬送始端側に転輪203を設け、転輪203の上昇を検知する検知部材204を設け、検知部材204が転輪203の上昇を検知すると引抜搬送装置24の搬送始端側を上昇させる昇降部材23を設け、転輪203を設けた回動自在な転輪アーム202とアクチュエータ207を引抜搬送装置24の搬送始端側に設け、アクチュエータ207と転輪アーム202の何れか一方に第1接触体206を備えた検知部材204を設け、他方に第2接触体207aを設け、第1接触体206が第2接触体207aに接触して検知部材204が転輪203の上昇を検知する構成とすると共に、前記アクチュエータ207を伸縮させて第1接触体206と第2接触体207aの接触位置を調節可能に構成する。【選択図】 図6
