Arched, translucent covers for sport grounds, swimming pools, hothouses and the like
First Claim
1. A translucent arched cover for swimming pools, sport grounds, hothouses and the like comprisesa supporting structure including a plurality of rigid, arcuate ribs of uniform cross section held in parallel, distanced alignment by a plurality of purlins extending between two adjacent ribs, each said rib being bent from rigid bar material containing an outwardly extending channel and two parallel co-planar flanges on both sides of said channel extending along the outside of said structure,a plurality of rectangular panels of a translucent, semi-rigid material of a length slightly shorter than the length of said ribs and of a width coextensive with the distance between two adjacent ribs, each said channel being positioned with its longitudinal margins on and along said flanges of two adjacent ribs,a plurality of flexible strips, one strip for each said rib, of a width coextensive with the width of said rib across said two flanges and of a length corresponding to the length of said translucent panels, the ends of each said strip being provided with tension means cooperating with the lower portions of the corresponding rib,wherein each said strip is positioned along the outside of a rib covering the margins of said panel or panels positioned on and along said flanges of said rib, and is tensioned on said panel or panels by said tensioning means, thus securing said panels to said ribs by pressure and friction.
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Accused Products
Abstract
A translucent cover for swimming pools, hothouses and the like comprises, a rigid supporting structure covered by rectangular panels (4) of polycarbonate sheeting. The structure comprises a number of rigid arcuate ribs (1) interconnected in parallel distanced alignment by purlins (2). The ribs are bent into arcuate shape from channels (10) open towards the outside of the cover, each rib having two co-planar flanges (11) extending along both sides of the channel opening. The panels (4) are of a width so as to cover the distance between two adjacent ribs with their two opposite margins resting on the flanges, and are held in position and pressed onto the flanges by means of flexible strips (3). The strips are of a width equal to the distance between the outer edges of the flanges (11) and of a length somewhat shorter than the length of the ribs. Each strip is lengthwise tensioned at both ends by tensioning screws fastened to the arc-shaped ribs close to their bases near the ground, whereby they press the panel edges onto the flanges and secure them in position on the structure by friction.
54 Citations
22 Claims
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1. A translucent arched cover for swimming pools, sport grounds, hothouses and the like comprises
a supporting structure including a plurality of rigid, arcuate ribs of uniform cross section held in parallel, distanced alignment by a plurality of purlins extending between two adjacent ribs, each said rib being bent from rigid bar material containing an outwardly extending channel and two parallel co-planar flanges on both sides of said channel extending along the outside of said structure, a plurality of rectangular panels of a translucent, semi-rigid material of a length slightly shorter than the length of said ribs and of a width coextensive with the distance between two adjacent ribs, each said channel being positioned with its longitudinal margins on and along said flanges of two adjacent ribs, a plurality of flexible strips, one strip for each said rib, of a width coextensive with the width of said rib across said two flanges and of a length corresponding to the length of said translucent panels, the ends of each said strip being provided with tension means cooperating with the lower portions of the corresponding rib, wherein each said strip is positioned along the outside of a rib covering the margins of said panel or panels positioned on and along said flanges of said rib, and is tensioned on said panel or panels by said tensioning means, thus securing said panels to said ribs by pressure and friction.
Specification