Motor assembly with combined armature shaft bearing support and

Details Motor assembly with combined armature shaft bearing support and Motor assembly with combined armature shaft bearing support and

1990-08-09

1991-10-08

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 62, 310 90, 310239, H02K 500

Patent

active

050557289

ABSTRACT:
A motor assembly including a unitary member which functions as a combined armature shaft bearing support and brush tube holder. The member is a molded plastic piece which has two legs extending from a bearing support portion and straddling the commutator and armature shaft of the motor for attachment to the motor field assembly. Ledges are formed in the legs to hold the brush tubes, which have lanced projections cooperating with notches formed in the legs for precisely locating the brush tubes and preventing longitudinal movement thereof. To clamp the brush tubes to the ledges, shoulders are provided adjacent the ledges and tabs straddling the brush tubes and the shoulders are secured by screws which pass through the tabs and into the shoulders. In order to accommodate different size brush tubes, different height shoulders are provided on opposite sides of the ledges. In addition, the legs are open at both ends of the ledges to accommodate different lengths of brush tubes.

REFERENCES:
patent: 3694680 (1972-09-01), Jacyno
patent: 3978354 (1976-08-01), Lee
patent: 4219749 (1980-08-01), Rettberg
patent: 4342929 (1982-08-01), Horne
patent: 4774430 (1988-09-01), Rodriguez
patent: 4896067 (1990-01-01), Walther

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