Flat roof solar sensor structures and clamp
A solar panel clamp and method of fabrication for use in affixing solar panels in the channels of elongated purlins includes a strip of sheet metal bent into an elongated U-shaped channel with a longitudinal mid-portion designated a clamp end. The channel defines a base or bight of the U-shape and channel sides extending substantially perpendicular to the base. Portions are removed from both channel sides adjacent the clamp end. The elongated channel is bent into a U-shape with the clamp end defining a bight of the U-shape and including substantially parallel, spaced apart opposed legs extending from the clamp end with the removed portions allowing limited movement of the spaced apart legs toward and away from each other. A position fixing device is associated with the clamp and designed to move the spaced apart legs toward each other in a clamping orientation.
1. A solar panel clamp for use in affixing solar panels in the channels of elongated purlins comprising:
a strip of sheet metal longitudinally bent into an elongated U-shaped channel with a longitudinal mid-portion, designated a clamp end, the the U-shaped channel defining legs oppositely extending from the clamp end, each oppositely extending leg having a distal end defined by the U-shaped channel, the U-shaped channel defining a base of the U-shape and channel sides extending substantially perpendicular to the base for the length of the base except for a plurality of gaps formed in each of the channel sides at the clamp end with the plurality of gaps allowing bending of the U-shaped channel at the clamp end;
gripping teeth formed in the channel sides of each of the oppositely extending legs starting at the distal end of each oppositely extending leg and extending inwardly towards the clamp end;
an inlet hole positioned in the base of the U-shaped channel between the clamp end and the gripping teeth in one of the oppositely extending legs, and a mating outlet hole positioned in the base of the U-shaped channel between the clamp end and the gripping teeth in the other of the oppositely extending legs;
the elongated U-shaped channel transversely bent into a U-shaped clamp with the clamp end defining a bight of the U-shaped clamp and the oppositely extending legs positioned to form substantially parallel, spaced apart opposed legs extending from the clamp end, the gripping teeth formed in the channel sides being oriented in an opposed relationship; and
a position fixing device with at least a portion designed to be received in the inlet and outlet holes and designed to move the spaced apart legs and the gripping teeth formed therein toward each other in a clamping orientation.
2. A solar panel clamp as claimed in claim 1 wherein the plurality of gaps are a plurality of wedge shaped portions forming slots at the bight of the U-shaped clamp allowing limited movement of the spaced apart legs toward and away from each other.
3. A solar panel clamp as claimed in claim 1 wherein the plurality of gaps are formed in the U-shaped channel sides at the clamp end allowing limited movement of the spaced apart legs toward and away from each other.
4. A solar panel clamp as claimed in claim 1 wherein the inlet hole is defined in the base of the elongated channel approximately midway along a first of the opposed legs and the mating outlet hole is defined in the base of the elongated channel approximately midway along a second of the opposed legs, the inlet and mating outlet holes being designed to receive at least a portion of the position fixing device therethrough.
5. A solar panel clamp as claimed in claim 4 wherein the position fixing device includes a carriage bolt with a shaft having a head end and threaded at a distal end, and a portion of the shaft immediately adjacent and in contact with the head having a square cross-section, the inlet hole having a square periphery that matches the square cross-section portion of the carriage bolt shaft and the outlet hole having a round periphery approximately matching the threaded distal end of the carriage bolt shaft.