ES38085U - Blinds for roll-up shutters (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Blinds for roll-up shutters characterized by their special shape defined by a profile that forms in the upper part a projection of substantially semi-cylindrical shape, which is joined by an incoming edge and quite alive with the rear surface, corrugated, whose section is a segment of circumference of great radius, and, by the previous part, by means of a slot in almost straight angle, of rounded apex, with the front surface constituted, like the later one, by a cylindrical segment of great radius. The tablet, in its lower part, has the shape of two lobes separated by a groove of rounded profile corresponding to that of the projection of the immediate tablet. The shape of the new Model is, exactly, the one represented in the figures and this form improves the function of the tablet from the following points of view: the shape of the cylindrical segment of great radius, given to the internal surface, favors the winding of the shutter for being the theoretical winding surfaces, perfect cylinders, and this advantage stands out especially if the junction between clapboard and splint meets good technical conditions; the greater height of one lobe over the other, combined with the special shape of the surfaces that have to fit, allows in the blinds with tilting slats that the slats are separated enough to begin the tilting, before they pass between them. sun or air, because the closure continues between the projection and the lobe of the upper immediate tablet, with the advantage, in addition to the external actions, such as wind pressure, on the exterior surface, blows or pressures to try to open the blind, will always tend to tighten the lobe against the projection with which the closure is secured. (Machine-translation by Google Translate, not legally binding)