Structure of a roll-up door, particularly of the rapid sliding type

Abstract

A fast vertical sliding roller door includes a stationary portal structure mounted at the opening of a wall and comprising an upper cross-member and a pair of uprights made by hollow sections having a connecting plate for fixing to a side of the opening. A flexible closing element is slidably mounted along the uprights, whose longitudinal edges have projections slidingly mounted in a guide formation associated with a respective upright. One lateral face of each upright comprises at least one removable cover, the removal of which allows internal access to the upright, and is provided with a support profile having a pair of parallel flanges and an intermediate portion traversed by stems projecting from the guide formation. One flange has transverse slots for engagement of screws fixed along them by a nut, in order to adjust the transverse tension of the closing element.

Dependencies are inferred from the claim text.