SUPPORT AND MOVEMENT STRUCTURE FOR AN INDUSTRIAL DOOR SHEET

Abstract

A structure designed to support and move a sheet for an industrial door comprises two vertical support posts, a towing trolley sliding along each vertical support post, and a plurality of towed trolleys. Each towing trolley and each towed trolley is provided with sheet connection means adapted to be linked to a respective transverse sheet stiffening element, and with vertical coupling means adapted to transfer the tensile load exerted on the trolley by the respective transverse stiffening element to the respective vertical axis. (Support upright.)The structure further includes two trolley traction devices capable of operating in vertical translation, each capable of being positioned between the respective vertical support upright and the sheet connection means of the trolleys and capable of pulling the towing trolley at least in the direction from bottom to top along the right vertical support.