| 摘要 |
<p>The upper side of the roller shutter slat is fitted with a connecting element engaging through a cutout on the underside of the next slat. A pair of securing elements (7, 8) is formed onto every slat, in the area covering part of the next slat. These consist of a groove (7, 8) extending lengthways on the slat, and a stem piece (12) engaging the groove when the slats are arranged with no gaps between them. The connecting element can be a hook-shaped slat (6), with one part of the pair of securing elements fitted in the area defined by the outward facing part of this and by the adjoining section (5') of the slat's sloped upper side.</p> |
