| 摘要 |
<p>The slatted shutter has at the extremities of its slats (1) sliding means (21) which run through the corresponding vertical lateral guides (3) and through conformed labyrinthian guides (4), as an upper extension of the former, in the internal sides of the box (23). The labyrinthian guide (4) comprises an inlet (5) and an outlet (6) which are common to the respective vertical lateral guide (3) so that, during the rolling/unrolling of the slatted shutter, said slatted shutter shows the same face to one side or the other, in other words internally or externally, making possible to clean both faces of the slatted shutter from the same side. During the rolling/unrolling of the slatted shutter, the slats (1) are driven by means of toothed wheels (26) or pinions (9), the extreme sliding elements (21) of the slats coming in between the teeth of the pinions. In an improved alternative, internal sides (22) of the box are formed by appropriately fixed plates (24), in the internal face of which is arranged a labyrinthian channel (4) which forms the guide of the slatted shutter, the inlet (5) and outlet (6) communicating with the vertical lateral guides (3). The slats (1) have, at their extremities, parts (17) provided with sprockets (21) which mesh with toothed wheels (10) which are appropriately synchronously actuated by motor means (11), so that said toothed wheels, when rotating, drive the slats and displace them along the lateral guides (3) and the labyrinthian guides (4) in such a way that the face of the slatted shutter facing the otside at the inlet remains facing the inside at the outlet and vice versa, so that it is possible to clean both faces of the slatted shutter while standing on the same side. <IMAGE></p> |
