To provide a natural ventilation system capable of being downsized while enabling impact relaxation in full opening of a panel.
The natural ventilation system includes the panel 3 which is disposed in a vent hole 1 for communicating the inside and outside of a building with each other, and a driving mechanism 5 for swinging the panel 3. The panel 3 swings in the inward/outward direction of the building so as to open/close the vent hole 1. The driving mechanism 5 includes a driving means which includes a motor 10 for outputting a driving force and the like, and a shaft 14 for transferring the driving force of the motor 10 to the panel 3. A first damper 21A for braking the rotation of the shaft 14 is connected to the shaft 14 via a connecting means 20. The connecting means 20 connects the first damper 21A to the shaft 14 when the panel 3 is brought into a predetermined closing attitude in a process of fully closing the vent hole 1.
HIROSE MASAAKI
HORI YOSHIAKI
NAOI KOJI
YKK ARCHITECTURAL
| JP2011179743A | 2011-09-15 | |||
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| JPH0432443U | 1992-03-17 | |||
| JPS5878436U | 1983-05-27 | |||
| JPH0468952U | 1992-06-18 | |||
| JPH0230412U | 1990-02-27 | |||
| JP2003194375A | 2003-07-09 | |||
| JPS62274126A | 1987-11-28 | |||
| JPS6236747U | 1987-03-04 | |||
| JPS63155936U | 1988-10-13 | |||
| JP2006189234A | 2006-07-20 | |||
| JPS6043341U | 1985-03-27 | |||
| JP2001317773A | 2001-11-16 | |||
| JP2011179743A | 2011-09-15 | |||
| JPS61250443A | 1986-11-07 | |||
| JPH0432443U | 1992-03-17 | |||
| JPS5878436U | 1983-05-27 | |||
| JPH0468952U | 1992-06-18 | |||
| JPH0230412U | 1990-02-27 | |||
| JP2003194375A | 2003-07-09 | |||
| JPS62274126A | 1987-11-28 | |||
| JPS6236747U | 1987-03-04 | |||
| JPS63155936U | 1988-10-13 |