Deployment mechanism for a retractable roof system for a large building structure

摘要

A retractable roof system (30) for a large building structure (32) for selectively closing off an opening (39) of a fixed roof (34) of the building structure (32), the system includes at least one roof section (40) movably mountable on at least one pier (42). A deployment mechanism (46) is provided and includes ropes (66) and pulleys (68) appropriately mounted on the top section (50) of the pier (42). The ropes (66) extend from an actuating piston (60) to the movable part (44) of the top section (50).