초록 ▼

A light-weight, one piece maintenance free, weather-resistant, stiff, warp and sag-proof planar molded plastics material cover or lid for containers has embossed portions defining hinge structure along the rear edge thereof, spaced transverse ribs across the width thereof and a longitudinal rib adja

A light-weight, one piece maintenance free, weather-resistant, stiff, warp and sag-proof planar molded plastics material cover or lid for containers has embossed portions defining hinge structure along the rear edge thereof, spaced transverse ribs across the width thereof and a longitudinal rib adjacent the front edge thereof merged into the transverse ribs. A peripheral lip is also formed around at least the front and sides. The lid or cover is substantially uniform in thickness, the embossed ribs are preferably U-shaped in cross section, and the embossed hinged structure has apertures forming bearings for a hinge rod.

대표청구항 ▼

In combination with a container having an open top section with hinge rod brackets and a hinge rod at the back edge thereof, a one piece molded plastics material lid for said open section comprising a substantially planar sheet of substantially uniform thickness with a dependent peripheral lip along

In combination with a container having an open top section with hinge rod brackets and a hinge rod at the back edge thereof, a one piece molded plastics material lid for said open section comprising a substantially planar sheet of substantially uniform thickness with a dependent peripheral lip along the front and sides of the sheet, said sheet having U-shaped hinge portions extending along the rear edge thereof with end wall portions having bores adapted to receive the hinge rod carried by the brackets of the container, and a plurality of embossments in said sheet extending transversely and longitudinally providing reinforcing ribs including at least one longitudinal rib spanning the sheet near the front edge thereof and a plurality of transverse ribs spanning the sheet between the longitudinal rib and the U-shaped hinge portions.