| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a plant cultivation device reducing cost by decreasing the number of detecting means of the storage position of a cultivation tray stored on a cultivation shelf, facilitating management of a cultivation tray storage position, and improving detection accuracy of a cultivation tray storage position. <P>SOLUTION: This plant cultivation device includes a transfer machine 140 which is movable to a transfer direction A1, and has an engagement rod 147 transferring a cultivation tray 110 between cultivation shelves in an engaged condition with a hook 117 of the cultivation tray 110, and limit switches 181 and 182 which are installed in the transfer machine 140, and detect the contact with the hook 117 as a part to be in contact in the cultivation tray 110 when moving the transfer machine 140 in the vertical direction. The limit switches 181 and 182 have a contact part 186 in contact with the hook 117 when the storage position of the cultivation tray 110 stored in the cultivation shelf is a projecting position getting out of an appropriate position allowing engagement of the hook 117 and the engagement rod 147. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
