Collar for the commutator of an automotive starter

Details Collar for the commutator of an automotive starter Collar for the commutator of an automotive starter

1986-11-12

1987-09-22

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

384371, H02K 1310, H01R 3916

Patent

active

046957553

ABSTRACT:
The armature of an automotive starter motor has a protective collar for its commutator. The collar has an annular disc body that is bonded to the rear wall of the commutator, and it has a projecting rim which overlays the marginal free ends of the bars of the commutator so as to restrain them from a tendency to peel or lift away under the strong forces developed as the armature is rotated in cranking a motor vehicle engine. The body of the collar also has a rearwardly extending hub provided with grease-filled cavities, whereby the hub serves as a lubricated thrust washer and spacer for the armature relative to the end frame of the starter's housing, as the armature rotates.

REFERENCES:
patent: 228545 (1880-06-01), Maxim
patent: 1120344 (1914-12-01), Templin
patent: 1826443 (1931-10-01), Aufiero et al.
patent: 4152614 (1979-05-01), Noguchi et al.
patent: 4587861 (1986-05-01), Morishita

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