| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pulley member for a greenhouse lightening pulley exchange work easier and reducing working time. <P>SOLUTION: The pulley member for a greenhouse is structured so that attaching plates 32c, 32d are connected to a pair of bearing plates 32a, 32b faced each other while interposing the pulley between them to be superimposed to each other, and are attached to pipe members to be fixed. A pair of the superimposed and fixed attaching plates 32c, 32d are separated from each other when disconnected from the pipe members so as to detach a driving wire hung around the pulley through the space between both of the attaching plates. In the pulley exchange work, the attaching plates 32c, 32d are detached from the clamping plates of a greenhouse pulley unit and the pipe members, and thereby only the pulley members for being arranged for the greenhouse can be detached through the space between the pair of the attaching plates 32c, 32d while the driving wire is kept stretched. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
