INSECT SCREEN FOR VENTILATION, AND VENTILATION METHOD FOR PVC GREENHOUSE

摘要

PPROBLEM TO BE SOLVED: To prevent intrusion of insect pests into a greenhouse via a ventilation face provided in an agricultural PVC greenhouse or the like by easily providing an insect screen irrespective of existence or new provision of the ventilation fan. PSOLUTION: A framework 3 is composed by erecting U-shaped frames 2 on a substantially square installation frame 1. The insect screen for ventilation is composed by covering a screen 4 sewn into a box shape, on the framework 3. The framework 3 composed of a rail like member, and a fastening part 11 is provided in a bottom of the screen 4 to provide fixing to the rail member. After covering the framework 3, the screen 4 is fixed by holding the fastening part 11 of the base in a rail portion of the rail member 5 of the installation frame 1 by a spring member 4. PCOPYRIGHT: (C)2008,JPO&INPIT