US Patent 7703256 Multi-piece attachment mounting clamp for trapezoidal rib profile panels

A clamp (42) is mounted on a hollow rib (18) of a panel assembly (142). The clamp (42) includes a first clamping member (46) and a separate second clamping member (82). The first clamping member (42) includes a first section (50) that is disposed beyond a top wall (30) of the rib (18), and that includes an arcuately-shaped recess (58). The second clamping member (82) includes a convex, arcuately-shaped distal end (90) that is disposed within the recess (58) of the first clamping member (42) to allow the second clamping member (82) to pivot relative to the first clamping member (46) at least generally about the distal end (90) to secure the clamp (42) to the rib (18). An attachment (150) may be mounted on the clamp (42).