Method of manufacturing commutator of rotary electric machine

Details Method of manufacturing commutator of rotary electric machine Method of manufacturing commutator of rotary electric machine

2006-05-16

2006-05-16

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S596000, C029S598000, C029S840000, C029SDIG012, C029SDIG029, C228S903000, C310S233000, C310S236000, C310S237000

Reexamination Certificate

active

07043822

ABSTRACT:
A method of manufacturing a commutator of a rotary electric machine includes a step of forming a first unitary material having nail portions, a step of forming a second unitary material for the commutator segments, a step of fixing the first unitary material and the second unitary material together to form a pre-commutator unit so that the nails extend radially outward from the periphery of the pre-commutator unit, a step of inserting the pre-commutator unit between a pair of dies so that the dies hold the nails without a gap, and a step of charging liquid resinous material into the inside of the dies to mold the pre-commutator unit.

REFERENCES:
patent: 4783906 (1988-11-01), Gingerich et al.
patent: 5552652 (1996-09-01), Shimoyama et al.
patent: 5677588 (1997-10-01), Strobl
patent: 5932949 (1999-08-01), Ziegler et al.
patent: 6114791 (2000-09-01), Ito et al.
patent: 6541889 (2003-04-01), Moroto et al.

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