| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ventilator capable of dispensing with an energizing means for opening and closing a door, simplifying a configuration, reducing its size and cost, and ensuring airtightness and strength of a ventilation port. <P>SOLUTION: This ventilator is provided with the doors 14, 15 for opening and closing the ventilation port 12, an electromagnetic solenoid 22 having a movable piston 23, a retainer member 30 having supporting shaft holding parts 30a, 30b for supporting door supporting shaft parts 14a, 15a turnably and operating by following the movement of the movable piston, and a holder member 31 for holding the retainer member 30. This ventilator is provided with an engaging step part 35 protruding from the holder member and facing a side face 36 on a movable piston side of a door terminal part through a cut-out part 35b facing the door terminal part in a closed condition so as to engage, and its corner part is used as a first engaging part 35a being an action point when opening the door. This ventilator is provided with an engaging projecting part 37 protruding from the holder member and facing an engaging face 38 in the direction of thickness of the door terminal part so as to engage, and its corner part is used as a second engaging part 37a being an action point when closing the door. <P>COPYRIGHT: (C)2007,JPO&INPIT |
