Tonneau cover and clamp assembly

A tonneau cover for covering a cargo box of a pickup truck, the tonneau cover comprising:

• a cover assembly configured to cover the cargo box of the pickup truck;
• and
• at least one clamp assembly secured to the cover assembly, the clamp assembly comprising an elongated strap, and
• a clamp mechanism in sliding engagement with the strap and movable between a plurality of secured positions along the strap, the clamp mechanism including
• a clamp configured for engagement with the cargo box of the pickup truck,
• a pawl pivotally supported by the clamp and spaced apart from a portion of the clamp, the strap extending between the portion of the clamp and the pawl, and an end of the pawl being biased into engagement with the strap, and
• a release member pivotally supported by the clamp and moveable between released position and an unreleased position, in the released position the release member being coupled to the pawl and the pawl being disengaged from the strap, in the unreleased position the pawl being engaged with the strap.