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(11) | EP 1 531 307 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Ventilation device |
(57) In order to provide a simple design of ventilation device which has a relatively
open aperture of pleasing aesthetic appearance, there is provided a face 2 for facing
into a room, the face including an aperture 3. Three closure parts 5 are provided
for closing the aperture 3. The closure parts 5 are rotatably mounted adjacent to
the aperture 3 about pivots 9 located around the periphery of the aperture. A drive
means is provided for moving the closure parts between an open position and a closed
position. A suitable fan 6 can be provided for drawing air through the aperture when
the closure parts are in the open position. In a first aspect of the invention, the
closure parts 5 each comprise closures surfaces having edges, the edges abutting one
another in the closed position. In a second aspect of the invention, there is drive
member 12 for contacting a drive part 11 of a closure part 5, the drive part 11 being
located close to the pivot 9. In a third aspect of the invention, the drive means
12 is configured to act on a drive part 11 of each closure part, the pivot 9 and the
drive part 11 being mounted on the same side of the closure part 5.
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