Threaded insert with flange tabs

Details Threaded insert with flange tabs Threaded insert with flange tabs

1999-07-16

2000-06-27

Wilson, Neill

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Threaded fastener locked to a discreet structure

Nut, and means to engage substructure on its opposite faces...

411 61, 411437, 470 25, F16B 3704, F16B 3716

Patent

active

060799226

ABSTRACT:
An insert for plastic sections is manufactured from a flat strip of metal by high-speed progressive die-stamping, which forms the strip into a threaded female insert. The metal strip is first cut into a flat blank and then thread regions are impressed on the face of the strip, providing a thread pitch profile. During the stamping operation, the strip is folded to form a triangular hollow tube with sharp-edged protrusions extending radially outward from each corner of the triangle. An interlocking side tab and interlocking cutout secure the abutting longitudinal side edges of the strip and ensures axial alignment of the thread regions. As a result of the folding and stamping process, the thread regions lie along the interior wall of the tubular construction and define a thread pitch diameter, which will accept the screw threaded into the center of the insert.

REFERENCES:
patent: 2823572 (1958-02-01), Gisondi
patent: 4354782 (1982-10-01), Newport
patent: 4430033 (1984-02-01), McKewan
patent: 5927920 (1999-07-01), Swanstrom

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