Telescopic shelter for materials stored in open air e.g. road salt or grain has series of arched roof modules that can be extended or retracted

摘要

The shelter consists of a number of arched roof modules, (2 - 5) each made from a metal (aluminum) frame (22) and panels (24). The lateral edges of the frames are equipped with rollers, preferably on ball bearings, which allow them to be deployed or retracted on guide rails (6) along the top of fixed side walls (1), either mechanically by a handle or an electric motor.