Patent attributes
A clamp to secure a tonneau cover to a frame of a cargo box includes a first clamp member coupled to the tonneau cover and has a first clamping surface. A second clamp member is coupled to the tonneau cover and has a second clamping surface. A ramp mechanism can include at least one ramp surface between the first and second clamp members shaped to cause lateral translation of the second clamping surface toward the first clamping surface in response to axial movement of the second clamp member toward the first clamp member as the clamp moves from an unclamped position to a clamped position. When in the clamped position, the first clamping surface of the first clamp member can be in opposed relationship to the second clamping surface to apply a clamping force therebetween, which can reinforce and prevent permanent deformation of the frame.