Importance

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Abstract

A channel nut for space framing systems characterized by having a pair of outwardly and downwardly extending arms which form a channel, a machine nut which is securely fastened thereto, and a resilient spring projecting upwardly from the machine nut. Such channel nuts are used to thread bolts into space framing members to secure lighting fixtures and the like into ceilings particularly for commercial utilization in plants and other buildings. The channel framing may be extended horizontally or vertically, and the channel nut must have some ability to withstand lateral thrusts so that it grips firmly into slots of the channel framing. The channel nuts of this invention include ordinary machine nuts of the square, hexagonal or elongated rectangular type, which are projection welded to the saddle to strengthen it. The method of making this channel nut consists of taking strip, punching through the strip for the threaded opening, serrating the stock at its ends, cutting the stock into pieces, chamfering the diagonal corners, and forming the pieces into a channel by bending the arms downwardly. Then a slot is cut into the sides of the channel for a spring, a nut is projection welded onto the channel over the opening, with the nut being square, hexagonal or elongated rectangular in shape, and the spring is secured in the channel in the slot by peening.

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First Claim