PROBLEM TO BE SOLVED: To provide a screen taking-up machine for a tea plant ridge solving the problem that a conventional apparatus is not usable because swivel of a machine body at the edge of the width of a tea ridge is impossible or difficult.SOLUTION: The screen taking-up machine 1 for a tea plant ridge includes a machine body 2 which is supported by a pair of wheels 3 each travelling on both sides of a tea plant ridge U and formed into a gate shape striding across the tea plant ridge U. In the machine body 2, a taking-up shaft 4 is supported rotationally around a central axis extending in a ridge width direction above the tea plant ridge U. The machine body 2 includes a pair of stretchable frames 30 where a vertical interval between the taking-up shaft 4 and the respective wheels 3 is independently adjustable. The stretchable frames 30 includes: an upper hollow tube and a lower hollow tube combined in a nested state a biasing means inserted into the tubes of the upper hollow tube and the lower hollow tube and biasing so that the upper hollow tube and the lower hollow tube may relatively be separated from each other in a vertical direction and a fixing means fixing the upper hollow tube and the lower hollow tube to each other so as to have a relative positional relationship between them in a vertical direction.COPYRIGHT: (C)2011,JPO&INPIT【課題】従来装置では茶畝幅端における機体の旋回が不可能又は困難なため使用できない。【解決手段】茶樹畝用スクリーン巻取機1は、茶樹畝Uの両側をそれぞれ走行する一対の車輪3により支持されており、該茶樹畝Uを跨ぐ門型に形成された機体2を備え、該機体2には、茶樹畝Uの上方において、畝幅方向に延びる中心軸周りに回転自在に巻取軸4が支持されている。機体2は、巻取軸4と各車輪3との間における上下方向の間隔を個別に調節可能とする一対の伸縮フレーム30を備えており、該伸縮フレーム30は、入れ子状に組まれた上部中空管及び下部中空管と、該上部中空管及び下部中空管の管内に挿入されるとともに、該上部中空管及び該下部中空管が上下方向へ相対的に離れるように付勢する付勢手段と、上部中空管及び下部中空管を上下方向における任意の相対位置関係で固定する固定手段とを備えている。【選択図】図1
