| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems such that the consideration concerning attachment of an insect control net is lacked, and problems in secure of sucking volume of outer air and substitution of air are left, although a cultivation method utilizing the insect control net becomes mainstream even in a greenhouse culture because agrochemical-free farm products such as vegetable, leaf vegetable, fruit and flower are convenient, and the agrochemical-free cultivation is essential when health of human beings, cure of disease, agriculture of this country and the like are considered. SOLUTION: The ventilation fan with an insect control net for a greenhouse is constituted by attaching a three-dimensional frame for supporting the insect control net to a ventilation fan frame of the ventilation fan installed on the wall surface of the greenhouse, covering an opening part of the three-dimensional frame with the insect control net, and covering the opening such as the blowoff side of the ventilation fan with the insect control net. As a result, the assembly of the insect control net to the ventilation fan installed in the greenhouse is facilitated, and the ventilation fan of the greenhouse can be easily covered with the insect control net. COPYRIGHT: (C)2007,JPO&INPIT |
