| 摘要 |
PURPOSE:To permit to assemble each parts, accommodated in a frame body for the ventilator, before incorporating a supporting body into the frame body by a method wherein shutters are supported by bearings to the supporting body, supporting a motor to the inside of the frame body for the ventilator. CONSTITUTION:The ventilator 1 consists of the cylindrical frame 2 of the ventilator, a ventilating decoration grille 3 attached to the indoor side opening of the frame body 2 and the peripheral rim thereof is abutting against the surface of the wall of the opening, the supporting body 5 attached to the inside of the frame body 2 by a screw 4, the motor 7 attached to the supporting body 5 by the screw 6, a blade 8 attached to the rotating shaft of the motor 7, two sheets of shutters 9U, 9D supported to the supporting body 5 by the bearings and opened or closed freely in the frame body 2 and a bow type attaching and holding spring 10 attached to the outside surface of the frame body 2 by the screw 4 fixing the supporting body 5. Accordingly, the attaching and removing of said shutters 9U, 9D may be effected easily by withdrawing the frame body 2 from said supporting body 5. |
