| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device for simply opening/closing a greenhouse sheet making it possible for an operator to surely have his (her) stance not only at the bottom part of a greenhouse in a ridge direction but also along the gable part of the greenhouse. <P>SOLUTION: This device for simply opening/closing the greenhouse sheet has the following structure: a rotational transmission device is built in a casing; a guide pipe-insertion hole is longitudinally prepared so as to pierce the casing; the casing is provided with an opening part where ends of an input axis and an output axis are exposed; a handle is connected to the input axis; and a greenhouse-sheet take-up axis is connective to the output axis. A C-shaped grip has a holding part integrally formed at the device, is structured so that a turnable axis of the grip is parallel to the guide pipe insertion hole, and is fixed to the casing at a place between a position where the holding part faces in the same direction as that of the input axis and a position where the holding part orthogonally crosses the input axis at right angles. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
