Brush device for a miniature electric motor

Details Brush device for a miniature electric motor Brush device for a miniature electric motor

1978-07-14

1980-12-09

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310246, H02K 1300

Patent

active

042387035

ABSTRACT:
A brush device for a miniature electric motor of a type, wherein the commutator brush is inserted into a brush holding member made of a leaf spring which is generally bent in the form of a letter "L", one side of which is in a slightly bent form at about the middle portion thereof with a brush fitting portion being provided at the extreme end thereof, and the other side of which is rectilinear with a fitting portion to the main body of the motor being provided at the extreme end thereof. The brush fitting section has a pair of brush holding flaps which are mutually opposed along the lengthwise direction of the holder, and formed by inwardly bending from the flat surface part of the holder, a brush inserting guide section, and a slip-preventive member to prevent the brush from slipping out in the direction of its insertion; the slightly bent portion of the brush holder is provided with reinforcing means to hold the slightly bent portion in its original shape; and the brush per se has a head section to be inserted between the pair of flaps on the holder.

REFERENCES:
patent: 2358958 (1944-09-01), Brown
patent: 3234420 (1966-02-01), Linder
patent: 3296473 (1967-01-01), Mabuchi
patent: 3482132 (1969-12-01), Hurlin
patent: 4085346 (1978-04-01), Yoshida
patent: 4088912 (1978-05-01), Yoshida
patent: 4117363 (1978-09-01), Honda

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