SHUTTER OF VENTILATOR

PURPOSE:To drastically reduce the number of noise preventing parts for preventing abnormal noise generated when a shutter of a ventilator is opened and closed, and reduce the man-hours of assembly work of the shutter. CONSTITUTION:Two or more shutter plates 5 are rotatably pivoted on one side of an opening of a shutter frame 2 so that they can open and close the opening. Cushioning members 10 integrally provided with first cushioning parts 8 and when second cushioning parts 9 are provided at the base ends of the shutter plates 5. The edges of the adjacent shutter plates 5 come in contact with the first cushioning parts 8 when the shutter plates 5 are closed, and the second cushioning parts 9 come in contact with connecting plates 6 when the shutter plates 5 are opened so that the shutter plates 5 are positioned. Thereby, the number of parts for preventing abnormal noise generated when a shutter is opened and closed can be reduced, resulting in a reduction in man-hour of assembly work of the shutter.