| 摘要 |
Roller shutter comprising a plurality of slats 30 in order to provide a curtain sliding in a couple of sliding guides. The slats 30 comprise a fixed frame 40 and at least a movable swinging wing 1. The roller shutter does not contain any active driving mechanisms for rotating the swinging wings as their rotation is only provided by the gravity force. The winding up of the curtain around the roller in the rising and lowering steps can be either manual and motorized. The roller shutter allows the double function of aerating rooms and protecting them from light, water and dust infiltrations and can be realized in any material.
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