| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilating device in a vinyl house, easily performing the rotation of a rotary-driving member, not restricted with a space for mounting it and capable of installing at the same time with the assembly of the skeletal structure of the vinyl house. SOLUTION: This ventilating device 10 in the vinyl house B by winding the one end of a sheet 1 spread over the skeletal structure of the vinyl house B on a shaft 12, and winding up or down the sheet 1 by rotating the shaft 12 through a rotary-driving member 15 in one direction is provided by installing a reinforcing frame 16 at the rotary-driving member 15 together as one unit, installing one or plural mounting holes 17 at the reinforcing frame 16, inserting a supporting rod 18 fixed at the skeletal structure of the vinyl house B into the above mounting hole 17, further, constituting the shaft 12 with a first universal joint 19 connected with the rotary-driving member 15, a rod 20 freely extendable and contractible and connected with the first universal joint 19, a second universal joint 21 connected with the tip of the freely extendable and contractible rod 20, and a winding shaft 22 connected with the second universal joint 21. |
