Foldable tonneau cover with an extruded forward section

1. A tonneau cover for a cargo box of a truck, the tonneau cover comprising:

a plurality of sections comprising a forward section and rear sections, each section spanning between a front edge and a rear edge;

the rear sections being pivotably coupled and foldable between a deployed arrangement in which the forward and rear sections are generally planar and a storage arrangement in which the rear sections are folded into a stack, wherein each of the rear sections has a multi-component construction between the front edge and the rear edge of each rear section that includes both a central panel and support frame members;

the forward section mountable to the cargo box and pivotably coupled to an adjacent rear section to support the stack in an upward angled position; and

the forward section being formed of an unitary extruded panel having an upper wall member and a lower wall member spaced apart from the upper wall member, the lower wall member at least partially defining a channel, wherein the forward section has a single-component construction between the front edge and the rear edge of the front section that is defined by the unitary extruded panel.

2. The tonneau cover of claim 1 , wherein the central panel of each of the rear sections is a rigid central panel.

3. The tonneau cover of claim 2 , wherein the extruded panel is an extruded metal panel and the rigid central panel is a polymeric panel.

4. The tonneau cover of claim 1 , wherein a pair of outer walls extend between the upper and lower wall members, and an internal rib is positioned internally between the outer walls and extends from a portion of the lower wall member defining an upper wall of the channel to the upper wall member.

5. The tonneau cover of claim 1 , further comprising a tonneau-to-cargo-box-attachment clamp slidably received in the channel.

6. The tonneau cover of claim 1 , wherein the forward section comprises a front edge and a rear edge, the upper wall member and the lower wall member being joined at a forward edge and a rear edge of the forward section, and wherein the forward section is pivotably coupled to the adjacent rear section at the rear edge.

7. The tonneau cover of claim 1 , wherein the upper wall member includes a central region recessed relative to the front edge and the rear edge.

8. The tonneau cover of claim 1 , wherein the channel is positioned within the extruded panel between the upper wall member and the lower wall member.

9. The tonneau cover of claim 1 , wherein the lower wall member includes a central region that is planar, and wherein the channel includes a longitudinal opening at the central region and a base wall member opposite the opening, and wherein the base wall member is disposed intermediate the upper wall member and the lower wall member.

10. The tonneau cover of claim 1 , wherein the extruded panel comprises a first lateral end and a second lateral end opposite the first lateral end, and wherein the forward section further comprises a first end cap attached to the first lateral end and a second end cap attached to the second lateral end.

11. The tonneau cover of claim 10 , wherein a pair of outer walls extend between the upper and lower wall members, and an internal rib is positioned internally between the outer walls and the internal rib comprises a coupling aperture, and wherein the first end cap is attached to the extruded panel by a threaded member engageably received in the coupling aperture.