Self-punching tee-nut insertion machine
US5323531A · kind A · utility
Inventors
Key dates
| Filing date | Dec 24, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Dec 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53987
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for inserting Tee-nuts in a solid wooden workpiece, the Tee-nuts having flanges and threaded sleeves of predetermined length, the workpiece having a thickness greater than the sleeve length. The apparatus has an anvil, an anvil die supported on the anvil, a through bore in the anvil die extending along an axis normal to the anvil, and a circular cutting edge. A power operated device is mounted so as to be reciprocable towards and away from the anvil. A moveable die is mounted on the reciprocable device in registration with the anvil die. The movable die includes a stub portion which can be slidingly received in the threaded sleeve of a Tee-nut, and which registers co-axially with the through bore in the anvil die. The anvil die is generally frusto-conical and has two outer surface portions meeting at an obtuse angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.