Brush device having a pair of U-shaped attaching pieces and tap

Details Brush device having a pair of U-shaped attaching pieces and tap Brush device having a pair of U-shaped attaching pieces and tap

1994-05-12

1996-01-16

Nguyen, Matthew V.

Electrical generator or motor structure

Dynamoelectric

Rotary

310242, H02K 1300

Patent

active

054850487

ABSTRACT:
A brush device having a brush holding frame made of an insulation material provided with a plurality of brush accommodating portions which are open at end portions thereof in the axial direction and at inner peripheral portions thereof in the radial direction, and a pair of protruded portions at opposing outer ends thereof in the radial direction; brushes accommodated in the brush accommodating portions along with brush springs, press-contacting a commutator of a direct current machine; an insulation plate touching an end face of the brush holding frame in the axial direction, covering the open portions at the end portions of the brush accommodating portion; and a pair of U-shaped attaching pieces mounted on and pinching both end faces of the pair of protruded portions of the brush holding frame thereby fixing the insulation plate to the end face of the brush holding frame in the axial direction comprises tap accommodating holes previously provided for accommodating front ends of taps for machining tapped holes at positions of first straight portions of said U-shaped attaching pieces in correspondence to tapped holes of second straight portions of said U-shaped attaching pieces.

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Journal of Nippondenso Technical Disclosure, Feb. 15, 1990 p. 177.

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