| 主权项 |
1. A retractable cover for a structure having an open space, said open space having a deck with a perimeter, said perimeter defining an open area, said cover having:
a center section having a front roller being curved downward at distal ends, said front roller having a curved inner shaft affixed to a frame at terminal ends and a rotatable outer portion circumscribing said curved inner shaft, a front fabric having an inner edge affixed to said rotatable outer shaft, said center section having a rear roller being curved downward at distal ends, said rear roller having a curved inner shaft affixed to said frame at terminal ends and a rotatable outer portion circumscribing said curved inner shaft, a rear fabric having an inner edge affixed to said rotatable outer shaft; a front section having an elongate front beam being curved downward near distal ends, said front fabric having an outer edge affixed along a lateral edge of said front beam, a front folding linkage connecting said front beam to said center section and having an outer end pivotably affixed to said front beam at an outer end and having an inner end pivotably affixed to said center section at an inner end, said front folding linkage having a center pivot point located intermediate said inner and outer end; a rear section having an elongate rear beam being curved downward near said distal ends, said rear fabric having an outer edge releasably affixed along a lateral edge of said rear beam, a rear folding linkage connecting said rear beam to said center section and having an outer end pivotably affixed to said rear beam at an outer end and having an inner end pivotably affixed to said center section at an inner end, said rear folding linkage having a center pivot point located intermediate said inner and outer end; a lifting mechanism having a mounting portion affixed to said structure on one end and affixed to said center section at a second end, said lifting mechanism moveable between a rearward stored position and a forward covered position, said rearward stored position being defined by said center section being located rearward said mounting portion, said forward covered position defined by said center section located forward said mounting portion; said front section moveable between a retracted position and an extended position, said refracted position defined by said front beam located relatively near said center section, said extended position defined by said front beam located relatively far said center section; and said rear section moveable between a retracted position and an extended position, said refracted position defined by said rear beam located relatively near said center section, said extended position defined by said rear beam located relatively far said center section. |
