Fast roll-up door comprising a curtain having resilient edges

Abstract

The present invention concerns a fast roll-up door for closing an aperture (20), said roll-up door comprising:(a) a curtain (1) having two opposite and parallel lateral edges extending along a longitudinal direction, and two opposite end edges joining the lateral edges, each of the two lateral edges being held in, (b) a pair of elongated guiding rails (4) suitable for holding the lateral edges of the curtain, and for guiding them as the curtain is being wound or unwound about a rotating axle, X1, characterized in that, the curtain comprises at least one resilient portion (3a) extending parallel to said lateral edges, said resilient portion being suitable for reversibly stretching along a transverse direction, normal to the longitudinal direction, from a rest configuration, L0, to a stretched configuration, L1=L0+delta L, upon application of a pressure, P, applied substantially normal onto the surface of the curtain, and for returning substantially to its rest configuration, L0, upon release of said pressure.

Description

technical field [0001] The invention relates to a fast rolling door comprising a roller blind having side edges coupled to guide rails for guiding the roller blind during winding of the roller blind about a winding shaft and during unrolling. In particular, said side edges are elastic to provide reversible deformation of the roller blind when subjected to a pressure applied transversely to the plane defined by the roller blind, such as wind or impact from a vehicle or the like. Background technique [0002] There are many types of locking systems for closing cabins, dividing rooms or covering swimming pools etc. A fast roll-up door comprises a flexible roller shade adapted to be wound or unwound around a winding shaft at high speeds to allow openings of large size to be opened and closed in a very short time. High-speed rolling doors are particularly suitable for closing an opening between two rooms or between a room and the outside in warehouses, workshops, shops, laborato...

AI Technical Summary

Problems solved by technology

These elements adversely affect the cost of the rolling door system

Also, metal rods that slide through holes in the metal static supports when the springs are strained create noise

can be obtained by using as in WO9220895 Figure 4 and Figure 5 foam or elastomeric materials shown in to reduce noise, however, foam is prone to creep

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