CPC B60J 7/0573 (2013.01) [B60J 7/068 (2013.01); B60J 7/02 (2013.01); B60J 7/04 (2013.01); B60J 7/041 (2013.01); B60J 7/067 (2013.01); B60J 7/085 (2013.01); B60J 7/1607 (2013.01); B60P 7/02 (2013.01); B60P 7/04 (2013.01); E05F 15/00 (2013.01); E05F 15/632 (2015.01); E05Y 2201/656 (2013.01); E05Y 2201/66 (2013.01); E05Y 2201/668 (2013.01); E05Y 2900/53 (2013.01)] | 9 Claims |
1. A drive system for operation of a roll top cover for covering a cargo bed of a vehicle comprising:
an elongate housing that defines a longitudinal axis and first and second ends, the housing including an axially extending aperture for receiving the roll top cover therethrough;
first and second receiving plates disposed transversely within the housing at the respective first and second ends thereof, the receiving plates comprising opposed spiral-shaped slots extending therethrough, each of the spiral-shaped slots having an open end proximally and a closed end distally; and
a drive shaft assembly disposed within the housing and extending axially between the first and second ends thereof;
wherein the drive shaft assembly is adapted for being operably connected to a drive chain and driving movement thereof within the spiral-shaped slots during operation of the roll top cover; and
wherein each of the receiving plates further comprise a curved channel adjacent the open end of the spiral-shaped slots and extending downwardly therefrom, the curved channel for receiving and rotatably supporting an end portion of the drive shaft assembly therein.
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9. A drive system for operation of a roll top cover for covering a cargo bed of a vehicle comprising:
an elongate housing that defines a longitudinal axis and first and second ends, the housing including an axially extending aperture for receiving the roll top cover therethrough;
first and second receiving plates disposed transversely within the housing at the respective first and second ends thereof, the receiving plates comprising opposed spiral-shaped slots extending therethrough, each of the spiral-shaped slots having an open end proximally and a closed end distally; and
a drive shaft assembly disposed within the housing and extending axially between the first and second ends thereof;
wherein the drive shaft assembly is adapted for being operably connected to a drive chain and driving movement thereof within the spiral-shaped slots during operation of the roll top cover; and
wherein the receiving plates further comprise one or more supporting elements disposed on a lateral surface thereof and extending transversely across their respective spiral-shaped slot.
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