Self-punching tee-nut insertion machine

Details Self-punching tee-nut insertion machine Self-punching tee-nut insertion machine

1992-12-24

1994-06-28

Echols, P. W.

Metal working

Means to assemble or disassemble

Means to drive self-piercing work part

29282, 227 16, B23P 1900, B23P 1904

Patent

active

053235312

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.

REFERENCES:
patent: 2120711 (1938-06-01), Phillips
patent: 2217026 (1940-10-01), Nickerson
patent: 3208135 (1965-09-01), Newbold et al.
patent: 4224731 (1980-09-01), Lingle
patent: 4610072 (1986-09-01), Muller
patent: 4821940 (1989-08-01), Rotherham
patent: 4825527 (1989-05-01), Ladouceur

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