Threaded insert with flange tabs
US6079922A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Jul 16, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/122
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.