Camming clamp for roof seam
A clamp described herein can secure a solar cell array to a seam of a standing seam metal roof. The clamp has a cam that is rotated by the tightening of a bolt to cause the cam to engage the seam. The clamp also has a receiver for receiving the seam and the rotated cam. By installing the clamp on the seam, the solar cell array can be secured to the standing seam metal roof without drilling into the roof. Because no screws are required to be drilled into the rooftop, the damage to the rooftop is substantially reduced. Also, by reversing the process described above, the clamp can be uninstalled in a similar fashion.
1. A clamp for securing a module to a roof seam, the clamp comprising:
a cam receiver comprising:
a horizontal component configured to abut the module and a module clamp;
a first vertical component extending from a first end of the horizontal component, the vertical component further comprising a flange configured to abut the roof seam; and
a second vertical component extending from a second end of the horizontal component, wherein the horizontal component and the first vertical component form a first corner, and the horizontal component and the second vertical component form a second corner;
a cam comprising:
a first cam component configured to abut the second corner;
a threaded cam insert extending from the first cam component; and
a second cam component extending from the threaded cam insert, wherein the second cam component is configured to abut the roof seam; and
a bolt comprising a threaded component, wherein the bolt extends from the module clamp through the horizontal component of the cam receiver and the threaded component extends to the threaded cam insert of the cam, wherein the bolt is configured to:
engage the threaded cam portion of the cam;
pull the cam towards the horizontal component until the first cam component abuts the second corner, preventing further movement of the cam towards the horizontal component; and
thereby cause the can to rotate toward the cam receiver, and whereby the flange of the vertical component abuts the roof seam, the second cam component abuts the roof seam, and the roof seam abuts the first corner.
2. The clamp according to claim 1 , wherein the second cam component and the threaded cam insert form a third corner, and wherein the third corner is configured to receive the roof seam.
3. The clamp according to claim 1 , further comprising a receiving flange extending from the horizontal component of the cam receiver, wherein the void between the receiving flange and the first vertical component is configured to receive the roof seam.
4. The clamp according to claim 1 , wherein the cam rotates about a pivot point substantially near the second corner.
5. The clamp according to claim 1 , wherein the bolt comprises a tightening component configured to rotate the bolt.
6. The clamp according to claim 5 , wherein the tightening component extends beyond the module clamp.
7. The clamp according to claim 5 , wherein the tightening component has a polygonal shape.