A lock system for operation of a roll top cover for covering a cargo bed of a vehicle enables a plurality of locking or engagement points. The system includes: one or more lock assemblies configured to operate a plurality of locking mechanisms for reversibly engaging the cargo bed; and an actuator assembly having an actuator operably connected to the lock assemblies for operation thereof between locked and unlocked positions.

An end cap for a roller tonneau cover of a truck includes, among other things, an end portion having a primary sliding surface and a first interlocking feature that provides an interface between the end cap and a slat of the tonneau cover, a tooth portion including teeth for engaging with a pinion gear, and a connection portion between the end portion and the tooth portion.

The disclosure discloses a transmission stretching truck box covering device with heating control, comprising: a clutch-type drive gear box, wherein the drive of the transmission motor drives the electric roller shutter to operate, and the motor is communicatively connected to a roller shutter control board; an electric roller shutter, one end of which is connected to the clutch-type drive gear box, the other end of which is fixed in a driven bearing; a roller shutter cover, which stretches along the extension direction of a side rod; a side rod, which is a support frame in which the roller shutter cover stretches; wherein the inner side of the side rod is a guide rail in which the roller shutter cover stretches, and the outer side is attached to the two side walls of the open top cover in the truck box.

A retractable aerodynamic panel for an automotive truck cargo bed comprises a first support rail adapted to be mounted onto a top edge of a first side wall of an automotive truck bed and a second support rail adapted to be mounted onto a top edge of a second side wall of an automotive truck cargo bed, a panel adapted to be mounted onto a tailgate of the automotive truck cargo bed, the panel adapted to extend between a retracted position, wherein the automotive truck cargo bed is substantially open, and a deployed position, wherein the panel extends outward from the tailgate across a portion of the automotive truck cargo bed between the top edges of the first and second side walls, the panel supported between side walls within the support rails, and an actuator adapted to selectively extend the panel between the retracted and deployed positions.

A side rail for a cargo bed of a vehicle enables the fitting or mounting of a broad range of automotive accessories to a roll top cover. The side rail comprises: an elongate body that defines a longitudinal axis; an axially extending drive channel disposed at a medial side of the body and defining an opening therein for receiving a drive chain, the drive channel having a recessed inner portion and a stepped outer portion adjacent the opening; an axially extending first support channel recessed in an upper side of the body and opening upwardly therefrom; and an axially extending second support channel recessed in the upper side of the body and opening upwardly therefrom, the second support channel disposed laterally adjacent to the first support channel.

A drive chain element for operably connecting a slat of a roll top cover to a drive rail enables more efficient roll top cover operation. The drive chain element includes: an elongate body that defines a longitudinal axis and first and second ends, an inner side of the elongate body configured for engaging an end portion of the slat; first and second hinge elements disposed at the respective first and second ends of the body, the first and second hinge elements configured to define a hinge arrangement between adjacent drive chain elements that facilitates relative pivotal movement therebetween; and first and second pins disposed in a spaced arrangement along an outer side of the body and extending outwardly therefrom; wherein the first and second pins are configured for operably contacting a drive system during operation of the roll top cover.

A side rail for a cargo bed of a vehicle enables improved and smoother control and operation of an associated drive chain and slat assembly. The side rail comprises: an elongate body that defines a longitudinal axis; an axially extending drive channel disposed at a medial side of the body and defining an opening therein for receiving a drive chain, the drive channel having a recessed inner portion and a stepped outer portion adjacent the opening; a first receiving channel disposed within an upper wall of the outer portion of the drive channel and extending axially therealong; a first sealing member disposed within the first receiving channel; a second receiving channel disposed opposite the first receiving channel within a lower wall of the outer portion of the drive channel and extending axially therealong; and a guide element disposed within the second receiving channel and projecting upwardly therefrom, the guide element having an upper contact surface for slidably contacting a surface of the drive chain.

A drive system for operation of a roll top cover for covering a cargo bed of a vehicle enables improved and smoother roll top cover movement. The drive system includes: 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.

A rolling tarp deployment system includes a trailer, a bulkhead fixed to the trailer, first and second bows movable along the trailer, first and second tensioning assemblies, and a cover. The first tensioning assembly has a first member secured to the first bow, a second member secured to the bulkhead, and a first actuator configured to engage the first and second members to restrain the first bow to the bulkhead. The second tensioning assembly has a third member secured to the second bow, a fourth member fixed to the trailer, and a second actuator configured to engage the third and fourth members and move the second bow away from the bulkhead. The cover is tensioned when both the first and second members and the third and fourth members are engaged.

A shutter couples to an upper part of a cargo bed by left and right tracks mounted on left and right side walls of the cargo bed. A tailgate is mounted on a rear end of the cargo bed. A bed liner seal member is provided on rear ends of the left and right side walls. A touch member provided on a rear part of the shutter makes elastic contact with the bed liner seal member when the shutter is fully extended. A shutter seal member provided on the shutter makes elastic contact with the tailgate. A tailgate seal member provided on the tailgate makes elastic contact with the bed liner seal member. First and second seal beads on an upper surface are provided on an upper wall of a protrusion of the bed liner seal member. The touch member touches the first and second seal beads.