Cargo container door closure mechanism
Embodiments of the invention described herein thus provide systems and methods for improved securement of a cargo cover/flexible door to a cargo container. The systems generally provide securement using cooperating frame securement features positioned on the cargo container and securement plates positioned on door straps of the cargo cover.
1. A cargo container closure system, comprising:
a cargo cover for closing an opening of a cargo container, the cargo cover comprising a plurality of securement plates secured thereto, each securement plate comprising a head and a stem;
a plurality of frame securement features secured to the cargo container, wherein the number of frame securement features corresponds to the number of securement plates, each frame securement feature comprising a head-receiving portion for receiving the head and an elongated portion for receiving the stem, wherein the frame securement feature comprises a D-slot.
2. The system of claim 1 , wherein at least one frame securement feature has a first orientation and at least a second frame securement feature has a second orientation.
3. The system of claim 2 , wherein upper frame securement features are positioned in the first orientation and a lowermost frame securement feature is positioned in the second orientation.
4. The system of claim 1 , wherein the frame securement features are installed on the cargo cover at an angle.
5. The system of claim 1 , wherein each securement plate is secured to a strap positioning the securement plate on the cargo cover.
6. The system of claim 1 , wherein each securement plate comprises a release handle for removing the securement plate with respect to each frame securement feature.
7. The system of claim 1 , further comprising a plurality of cargo door straps secured to the cargo cover, the plurality of cargo door straps comprising the plurality of securement plates.
8. The system of claim 1 , further comprising a cargo door strap secured to each securement plate, wherein the cargo door strap comprises a sizing feature.
9. The system of claim 1 , wherein the head-receiving portion and the elongated portion of the frame securement feature are angled with respect to one another.
10. The system of claim 1 , wherein the head of the securement plate comprises a circular dimension.
11. The system of claim 1 , wherein the cargo door cover comprises a composite sheet at its lower portion.
12. A cargo container closure system, comprising:
a cargo cover for closing an opening of a cargo container, the cargo cover comprising a plurality of securement plates secured thereto, each securement plate comprising a head and a stem;
a plurality of frame securement features secured to the cargo container, wherein the number of frame securement features corresponds to the number of securement plates, each frame securement feature comprising a head-receiving portion for receiving the head and an elongated portion for receiving the stem, wherein each securement plate comprises at least one through hole for receiving a security seal.
13. The system of claim 12 , wherein at least one frame securement feature has a first orientation and at least a second frame securement feature has a second orientation.
14. The system of claim 13 , wherein upper frame securement features are positioned in the first orientation and a lowermost frame securement feature is positioned in the second orientation.
15. The system of claim 12 , wherein the frame securement features are installed on the cargo cover at an angle.
16. The system of claim 12 , wherein each securement plate is secured to a strap positioning the securement plate on the cargo cover.
17. The system of claim 12 , wherein each securement plate comprises a release handle for removing the securement plate with respect to each frame securement feature.
18. The system of claim 12 , wherein each securement plate comprises symmetrical through holes at opposite edges of the securement plate.
19. The system of claim 12 , further comprising a plurality of cargo door straps secured to the cargo cover, the plurality of cargo door straps comprising the plurality of securement plates.
20. The system of claim 12 , further comprising a cargo door strap secured to each securement plate, wherein the cargo door strap comprises a sizing feature.
21. The system of claim 12 , wherein the head-receiving portion and the elongated portion of the frame securement feature are angled with respect to one another.
22. The system of claim 12 , wherein the head of the securement plate comprises a circular dimension.
23. The system of claim 12 , wherein the cargo door cover comprises a composite sheet at its lower portion.
24. A cargo container closure system, comprising:
a cargo cover for closing an opening of a cargo container, the cargo cover comprising a plurality of securement plates secured thereto, each securement plate comprising
a head; a stem; two strap attachment openings configured to be secured to a door strap of the cargo cover and a release handle; and at least one through hole;
a plurality of frame securement features secured to the cargo container, wherein the number of frame securement features corresponds to the number of securement plates, each frame securement feature comprising a head-receiving portion for receiving the head and an elongated portion for receiving the stem, wherein at least one frame securement feature has a first orientation and at least a second frame securement feature has a second orientation.
25. The system of claim 24 , wherein upper frame securement features are positioned in the first orientation and a lowermost frame securement feature is positioned in the second orientation.
26. The system of claim 24 , wherein the cargo cover comprises a composite sheet at its lower portion.