| 摘要 |
Slats (22) of the shutter consist of profiles in the shape of an isosceles triangle, the base of which has a V shape (24) having its tip directed towards the apex of the triangle. At the ends of each slat, the V-shaped base has its profile modified so as to form a smaller V (28), the tip of which, which is further away from the apex of the triangle than that of the usual profile (24), forms a notch (30) into which the apex of the neighbouring slat is positioned. <IMAGE>
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