Metal working – Method of mechanical manufacture – Electrical device making
Patent
1986-12-19
1988-02-16
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
29 33M, 29 33K, 295648, 29756, 29759, 83440, 83566, 337252, H01H 6902, B23P 1900
Patent
active
047246065
ABSTRACT:
A method for assembling terminal cup-shaped end caps over the ends of cartridge-type electrical subminiature fuses during the assembly thereof has for its novel feature the provision of a centered axially extending handling wire attached to the outer face of each end cap prior to the assembly process. By configuring the lengths of the handling wires substantially longer than the dimensions of the cap itself, the use of an alignment fixture employing the wires for handling and alignment purposes allows for precise orientation of the end caps during the press-on assembly process over the ends of the fuse body. After assembly the wires are removed from their respective end caps. A shearing station suitable for mass production lead removal has upwardly extending sheraing blades with the fuses passed sequentially past the blades with their leads extending slightly over the top of the blade cutting edges. Axial pressure forces the end caps into abutting relationship with the blades, whereupon a movable piston engages the fuse body to force the wires in a shearing direction across the blade edges to result in a burr-free removal.
REFERENCES:
patent: 2046669 (1936-07-01), Wood
patent: 2592019 (1952-04-01), Farnett
patent: 2929289 (1960-03-01), Gorecki
patent: 3414959 (1968-12-01), Konazewski et al.
patent: 3636806 (1972-01-01), Vyncke
Arnold Stephen R.
Echols P. W.
Hattis Russell E.
Littelfuse Inc.
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