发明授权
US06367206B1 Retractable stadium roofs and transport mechanism therefor 有权
可伸缩体育场屋顶及其运输机制

Retractable stadium roofs and transport mechanism therefor
摘要:
A stadium that is adapted for open use during good weather as well as for covered use during poor weather includes a foundation and a pair of movable end roof members that are movable between first, retracted positions and second, operational positions for covering first and second end areas, respectively, of the stadium. The stadium also includes a center roof member that is movable between a retracted position and an operational position for covering a center area of the stadium. All of the roof members are supported for movement between the retracted positions and the operational positions by a guide and support assembly that includes at least one rail member that is secured to the foundation and a plurality of independently suspended follower assemblies that are mounted to the respective roof member. Each of said follower assemblies include a wheel member that is positioned in contact with the rail and a resilient member that is interposed between the wheel member and the roof member, so that each of the wheel members is independently suspended with respect to the other wheel members. This creates a number of advantages, including that it makes alignment easier to achieve and maintain, and that it allows the guide and support assembly to be constructed with a large number of small wheels and to have a relatively low profile, which makes the system attractive from both an aesthetic and a structural standpoint.
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