Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1978-10-26
1980-10-14
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
2924352, 227 68, B21D 3900, B23P 1100
Patent
active
042272947
ABSTRACT:
A two part die set and method including an upper die half supporting a male die and a lower die half containing a spring biased female die receiving the male die and cutting out an area of a panel placed therebetween. The die set is actuated by a conventional machine press of the type having a ram movable toward a fixed bed. The male punch includes a shank and an annular groove forming an area of reduced diameter supporting a ferrule with integral fastening tines. Extended movement of the punch into engagement with the panel cuts out an area of said panel and further extended movement moves the tines through the panel. Continued extended movement of the male die moves the ferrule downwardly and engages angular portions of the tines with the peripheral edge of the cut out in the panel deflecting the tines outwardly on the underneath side of the panel. Further downward movement of the male die engages its shank with the tines and forces them into frictional engagement with the peripheral edge of the panel cut out deforming a portion of the panel downwardly permanently forming a countersink in the panel around the cut out. The ferrule includes a flange in contact with the upper surface of the panel. The upper die half also has a downwardly extending abutment that engages a spring biased carriage assembly and the female die. The carriage assembly and female die are moved downwardly against the force of their biasing springs until a latching detent is cammed away from a latching surface on the female die. The female die is released permitting its biasing spring to rapidy move it upwardly clenching the ferrule tines against the underneath side of the panel securing the ferrule in place.
REFERENCES:
patent: 626722 (1899-06-01), Pusey
patent: 822527 (1906-06-01), Kappel
patent: 1302942 (1919-06-01), McMurray
patent: 1437245 (1922-11-01), Henchcliff
patent: 1838973 (1931-12-01), Wilder
patent: 2325929 (1943-08-01), Amesbury et al.
patent: 3456483 (1969-07-01), Crothers et al.
patent: 3942240 (1976-03-01), Gebelius
patent: 4161059 (1979-07-01), Francois
Engle Charles R.
General Motors Corporation
Moon Charlie T.
LandOfFree
Method of installing a ferrule does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of installing a ferrule, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of installing a ferrule will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2094629