Process of producing front commutators for the rotors of direct

Details Process of producing front commutators for the rotors of direct Process of producing front commutators for the rotors of direct

1981-04-30

1983-01-25

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29418, 310 43, 310237, H01R 4308

Patent

active

043695663

ABSTRACT:
Process of producing front commutators for the rotors of direct current machines. A linear shaped copper strip is formed, the shaped strip incorporating a plurality of serially connected commutator segment halves. After the formation of the shaped strip it is alternately bent in an upward direction and in a downward direction to form a intermediate product in which the upper surfaces of the segment halves of each pair thereof are pressed together. The resulting intermediate product is then bent into a circle so that there is formed a commutator ring with a plurality of confronting pairs of segment halves disposed in radial directions. Between the bent, initially upper shaped parts of the shaped strip there are formed slots for the reception of the rotor winding between confronting segment halves; and between the bent, initially lower linear parts of the shaped strip there are formed air gaps between the consecutive segments of the commutator.

REFERENCES:
patent: 3459983 (1969-08-01), Bowcott
patent: 3925881 (1975-12-01), Bowcott

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