Brush holder assembly

Patent metadata

Field	Value
Publication number	US-12015229-B2
Application number	US-202117517070-A
Country	US
Kind code	B2
Filing date	Nov 2, 2021
Priority date	Nov 4, 2020
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

An example brush holder assembly for positioning a conductive carbon brush in contact with a conductive surface of an electrical device is disclosed. In some aspects, the example brush holder assembly includes a brush holder including a backbone extending therefrom and a removable handle. Further, the removeable handle includes a frame releasably engaged with the backbone and a grip secured to the frame. In some aspects, the brush holder assembly includes a removable catch arm removably coupled to an upper beam and a lower beam of the brush holder assembly. Removal of the catch arm allows the upper beam to be disassembled from the lower beam.

First claim

What is claimed is:

1. A brush holder assembly, comprising:
a lower beam;
an upper beam pivotably coupled to the lower beam; and
a removable catch arm including a first end region and a second end region;
wherein the first end region of the catch arm is configured to removably attach to the upper beam;
wherein the second end region of the catch arm is configured to removably attach to the lower beam; and
wherein the upper beam is configured to be disassembled from the lower beam upon removal of the catch arm from the upper beam and the lower beam;
wherein the catch arm further includes a first aperture positioned along the first end region of the catch arm, and wherein the first aperture is configured to receive a pin extending from the upper beam;
wherein the catch arm further includes a second aperture positioned along the second end region of the catch arm, and wherein the second aperture is configured to receive a pin extending from the lower beam.

2. The brush holder assembly of claim 1 , wherein the second aperture includes a tapered surface, and wherein the pin extending from the lower beam includes a tapered surface configured to mate with the tapered surface of the second aperture.

3. The brush holder assembly of claim 2 , wherein the second aperture is non-circular, wherein the pin extending from the lower beam is extendable through the second aperture in a first rotational orientation, but is prevented from extending through the second aperture in a second rotational orientation different from the first rotational orientation.

4. The brush holder assembly of claim 1 , further comprising a cover plate extending along a side surface of the lower beam, the cover plate including a first end region positioned between the second end region of the catch arm and the side surface of the lower beam, wherein the end region of the cover plate exerts a lateral outward force against a rear surface of the catch arm.

5. A brush holder assembly, comprising:
an upper beam;
a lower beam pivotably coupled to the upper beam;
a brush holder attached to the lower beam, the brush holder configured to slidably receive a carbon brush therein;
a removable catch arm including a first end region and a second end region, wherein the first end region of the catch arm is configured to attach to the upper beam, and wherein the second end region of the catch arm is configured to attach to the lower beam;
wherein the catch arm includes a first aperture positioned along the first end region of the catch arm and a second aperture positioned along the second end region of the catch arm, wherein the first aperture is configured to receive a pin extending from the upper beam, and wherein the second aperture is configured to receive a pin extending from the lower beam;
wherein the upper beam is configured to be repeatedly assembled and disassembled from the lower beam;
wherein the lower beam includes a first sidewall and a second sidewall defining a channel therebetween, the channel configured to removably receive a mounting block to secure the brush holder assembly to an electrical device;
wherein the first sidewall includes an opening extending through the sidewall into the channel.

6. The brush holder assembly of claim 5 , further comprising:
a cover plate extending along the first sidewall of the lower beam, the cover plate including a first end region positioned between the second end region of the catch arm and the first sidewall of the lower beam;
wherein the cover plate extends across the opening of the first sidewall.

7. A brush holder assembly, comprising:
a lower beam;
an upper beam pivotably coupled to the lower beam;
a removable catch arm including a first end region and a second end region; and
a cover plate extending along a side surface of the lower beam, the cover plate including a first end region positioned between the second end region of the catch arm and the side surface of the lower beam;
wherein the first end region of the catch arm is configured to attach to the upper beam; and
wherein the second end region of the catch arm is configured to attach to the lower beam; and
wherein the end region of the cover plate exerts a lateral outward force against a rear surface of the catch arm.

8. The brush holder assembly of claim 7 , wherein the catch arm further includes a first aperture positioned along the first end region of the catch arm, and wherein the first aperture is configured to receive a pin extending from the upper beam.

9. The brush holder assembly of claim 8 , wherein the catch arm further includes a second aperture positioned along the second end region of the catch arm, and wherein the second aperture is configured to receive a pin extending from the lower beam.

10. The brush holder assembly of claim 9 , wherein the second aperture includes a tapered surface, and wherein the pin extending from the lower beam includes a tapered surface configured to mate with the tapered surface of the second aperture.

11. The brush holder assembly of claim 10 , wherein the second aperture is non-circular, wherein the pin extending from the lower beam is extendable through the second aperture in a first rotational orientation, but is prevented from extending through the second aperture in a second rotational orientation different from the first rotational orientation.

12. A brush holder assembly, comprising:
an upper beam;
a lower beam pivotably coupled to the upper beam;
a brush holder attached to the lower beam, the brush holder configured to slidably receive a carbon brush therein;
a removable catch arm including a first end region, a second end region, a first aperture positioned along the first end region of the catch arm, and a second aperture positioned along the second end region of the catch arm;
wherein the first aperture is configured to receive a pin extending from the upper beam to attach the first end region of the catch arm to the upper beam;
wherein the second aperture is configured to receive a pin extending from the lower beam to attach the second end region of the catch arm to the lower beam;
wherein the lower beam includes a first sidewall and a second sidewall defining a channel therebetween, the channel configured to removably receive a mounting block to secure the brush holder assembly to an electrical device;
wherein the first sidewall includes an opening extending through the sidewall into the channel; and
a cover plate extending along the first sidewall of the lower beam, the cover plate including a first end region positioned between the second end region of the catch arm and the first sidewall of the lower beam;
wherein the cover plate extends across the opening of the first sidewall.

Assignees

• Cutsforth Inc

Inventors

• Cutsforth Robert S

Classifications

• H02K5/14

  Means for supporting or protecting brushes or brush holders · CPC title

• H01R39/415 Primary

  with self-recoiling spring · CPC title

• H01R39/58

  Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear · CPC title

• H01R43/14

  Maintenance of current collectors, e.g. reshaping of brushes, cleaning of commutators · CPC title

• H01R39/42

  Devices for lifting brushes · CPC title