SHUTTER OPENING-CLOSING DEVICE FOR VENTILATION FAN

摘要

PROBLEM TO BE SOLVED: To provide a shutter opening-closing device for a ventilation fan which enables minimizing of discarding due to troubles and use of gear motors with varied shapes by facilitating the replacement of the gear motors and electric parts individually. ;SOLUTION: An opening-closing device 15 is provided with a gear motor 17 and electric parts 28 for operating a shutter link plate 11 to open or close a shutter 8 and an opening-closing device case 31 is formed to arrange a gear motor holding part that allows detachably mounting of the gear motor 17 or gear motors with varied shapes and an electric part housing part 29 for housing the electric parts 28 individually therein. This enables replacing of the gear motor 17 and the electric parts 28 individually to minimize discarding due to troubles and also allows the use of the gear motors with varied shapes.;COPYRIGHT: (C)2000,JPO