Abstract: A rigid cover assembly for covering the rear cargo compartment of a pickup truck. There is a tip plastic sheet that may have an acrylic surface placed over it for improved visual appearance. A bottom plastic sheet conforms to the shape of the top plastic sheet and is joined around the perimeter to the top plastic sheet. There is a fiberglass layer that is placed on the inside surface of the top and bottom plastic sheets that provides a bonding means for attaching a honey comb structural layer to the fiberglass layers. This provides light weight structural strength to the cover. The honeycomb that is attached to the plastic sheets reduces wetness marks.

Abstract: A releasable hinge for attaching tonneau covers to the cargo compartment of pickup trucks. The hinge has a hinge mechanism fastened to the bottom or underside of the tonneau cover. A complementary locking tab is mounted to the cab end of the cargo compartment. The hinge mechanism has a plate with a locking tongue that is received in a locking channel in the locking tab to latch the tonneau cover to the cargo compartment. To remove the tonneau cover from the cargo compartment, the tonneau cover is raised above a predetermined angle which disengages the locking tongue from the locking channel. This allows the hinge to separate from the locking tab. Any gas struts are released from their mounting brackets and the tonneau cover can be removed from the cargo compartment.

Abstract: A rigid cover assembly for covering the rear cargo compartment of a pickup truck. There is a top plastic sheet that may have an acrylic surface placed over it for improved visual appearance. A bottom plastic sheet conforms to the shape of the top plastic sheet and is joined around the perimeter to the top plastic sheet. There is a fiberglass layer that is placed on the inside surface of the top and bottom plastic sheets that provides a bonding means for attaching a honeycomb structural layer to the fiberglass layers. This provides light weight structural strength to the cover. The honeycomb that is attached to the plastic sheets reduces wetness marks.

Abstract: A releasable hinge for attaching tonneau covers to the cargo compartment of pickup trucks. The hinge has a hinge mechanism fastened to the bottom or underside of the tonneau cover. A complementary locking tab is mounted to the cab end of the cargo compartment. The hinge mechanism has a plate with a locking tongue that is received in a locking channel in the locking tab to latch the tonneau cover to the cargo compartment. To remove the tonneau cover from the cargo compartment, the tonneau cover is raised above a predetermined angle which disengages the locking tongue from the locking channel. This allows the hinge to separate from the locking tab. Any gas struts are released from their mounting brackets and the tonneau cover can be removed from the cargo compartment.