The present invention relates to a strip for rolling shutters having a particular profile. The present invention also relates to a rolling shutter comprising said strip.
The known rolling shutters comprise a plurality of horizontal strips hinged to each other for being rolled up around a roller. For this purpose, these strips comprise a lateral concave surface that will result turned toward the roller and a lateral convex surface that will result turned toward the opposite side of the roller. Thanks to this curved profile of the strips, the known rolling shutters can be rolled up into a small-sized rolling-shutter box.
However, the rolling-shutter box is often mounted outside the windows, for example when the latter are not prepared yet for mounting rolling shutters, so that the rolling shutters show outwards a series of concave surfaces, otherwise they could be contained only in a large-sized rolling-shutter box. In any case, the known rolling shutters are unaesthetic if mounted outside a building.
It is therefore an object of the present invention to provide a rolling shutter which is free from said disadvantages, i.e. a rolling shutter which has an aesthetically valuable outer profile and can be mounted outside a building in a small-sized rolling-shutter box. Said object is achieved with a strip for rolling shutters and a rolling shutter, the main features of which are disclosed in claims 1 and 11, respectively, while other features are disclosed in the remaining claims.
Thanks to their particular outer profile, the strips for rolling shutters according to the present invention are aesthetically valuable and can be employed in a rolling shutter to be rolled up into a small rolling-shutter box mounted outside a building.
According to a particular aspect of the invention, the strips for rolling shutters can have an inner profile complementary to the outer profile, so that they are aesthetically valuable also when seen from the inside.
Furthermore, the rolling shutters assembled with the strips according to the present invention preferably have the same inner and outer wavy profiles. For this purpose, the strips for rolling shutters can also have a horizontal central groove which simulates the contact line between one strip and the other one.
Further advantages and features of the strip for rolling shutters and the rolling shutter according to the present invention will become evident to those skilled in the art from the following detailed and non-limiting description of two embodiments thereof with reference to the attached drawings, wherein:
Referring to
According to the invention, the central portion of a lateral surface of strip 1, in particular of the first lateral surface 1a that will result turned toward the roller, is concave, while its upper and lower portions are convex. Preferably, said central, upper and lower portions have substantially the same bend radiuses and the height h2 of the central portion is substantially equal to the sum of the heights h1 and h3 of the upper and lower portions of the first lateral surface 1a. The central portion of the opposite lateral surface of strip 1, for example of the second lateral surface 1b that will result turned toward the opposite side of the roller, is convex, while its upper and lower portions are concave. Preferably, the bend radiuses of said portions are substantially the same, as well as substantially equal to the bend radiuses of the portions of the first lateral surface 1a, while the height h5 of the central portion of the second lateral surface 1b is substantially equal to the sum of the heights h4 and h6 of the upper and lower portions of the latter lateral surface, as well as to the height h2 of the central portion of the first lateral surface 1a
With the above arrangements, strips 1, 5 and 7 arranged one on the other have one or both lateral surfaces having a wavy profile, the contact lines between a strip and the other being arranged in the concave zones of a wavy profile and in the convex zones of the opposite wavy profile.
Referring to
Referring finally to
Changes and/or additions, if any, may be made by those skilled in the art to the embodiments of the invention described and illustrated hereinabove, while remaining within the scope of the same invention.
Number | Date | Country | Kind |
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RM2002A000620 | Dec 2002 | IT | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/IT03/00575 | 11/20/2003 | WO | 5/18/2005 |