Spring arm bearing retainer

Claim 2

In a dynamoelectric machine having a frame, an armature assebly including a shaft and commutator means rotatably supported within the frame with support bearing means at the end of the shaft adjacent the commutator means and thrust bearing means at the other end of the shaft, and a brush assembly supported on the shaft free of the frame and adjacent the commutator in engagement therewith; a member comprising a main body adapted for attachment to the frame for retention of the support bearing therein and an integral pair of spaced, parallel, resilient arms 66 projecting from one side of the main body and bent back between the main body and the brush assembly in expansive engagement with the latter to bias the brush assembly axially against the armature assembly and the armature assembly against the thrust bearing.

Claim 3

In a dynamoelectric machine having a frame, an armature assembly including a shaft and commutator means rotatably supported within the frame with support bearing means at the end of the shaft adjacent the commutator means and thrust bearing means at the other end of the shaft, and a brush assembly supported on the shaft free of the frame and adjacent the commutator in engagement therewith; a member comprising a main body adapted for attachment to the frame for retention of the supporting bearing therein and an integral pair of spaced parallel arms projecting from one side of the main body and bent back into engagement with the brush assembly as stops to prevent the latter from rotating with the armature assembly.

Claim 4

In a dynamoelectric machine having a frame, an armature assembly including a shaft and commutator means rotatably supported within the frame with support bearing means at the end of the shaft adjacent the commutator means and thrust bearing means at the other end of the shaft, and a brush assembly supported on the shaft free of the frame and adjacent the commutator in engagement therewith; a member comprising a main body adapted for attachment to the frame for retention of the supporting bearing therein and an integral pair of spaced parallel arms projecting from one side of the main body and bent back into engagement with the brush assembly as stops to prevent the latter from rotating with the armature assembly.

Claim 5

The apparatus of claim 1 in which each of the arms carries a tab projecting therefrom for further engagement with the brush assembly as a stop to prevent its rotation with the armature.

Claim 6

In a dynamoelectric machine having a frame, an armature assembly including a shaft and commutator means rotatAbly supported within the frame with support bearing means at the end of the shaft adjacent the commutator means and thrust bearing means at the other end of the shaft, and a brush assembly supported on the shaft free of the frame and adjacent the commutator in engagement therewith, the brush assembly including a brush holder having a contact portion thereof surrounding the shaft and projecting axially toward the support bearing, the contact portion ending in a surface having at least one generally straight edge; a member comprising a main body adapted for attachment to the frame for retention of the support bearing therein and an integral pair of spaced, parallel, resilient arms projecting from one side of the main body and bent back between the main body and the brush assembly in expansive engagement with the surface of the latter on opposite sides of the shaft to bias the brush assembly axially against the armature assembly, whereby the brush assembly is axially aligned with the armature assembly, and thus to bias the armature assembly against the thrust bearing, each of the arms having a tab projecting therefrom, each of the tabs bending around the edge to form a stop for the prevention of brush assembly rotation.

Claim 7

In a dynamoelectric machine having a frame, an armature assembly including a shaft and commutator means rotatAbly supported within the frame with support bearing means at the end of the shaft adjacent the commutator means and thrust bearing means at the other end of the shaft, and a brush assembly supported on the shaft free of the frame and adjacent the commutator in engagement therewith, the brush assembly including a brush holder having a contact portion thereof surrounding the shaft and projecting axially toward the support bearing, the contact portion ending in a surface having at least one generally straight edge; a member comprising a main body adapted for attachment to the frame for retention of the support bearing therein and an integral pair of spaced, parallel, resilient arms projecting from one side of the main body and bent back between the main body and the brush assembly in expansive engagement with the surface of the latter on opposite sides of the shaft to bias the brush assembly axially against the armature assembly, whereby the brush assembly is axially aligned with the armature assembly, and thus to bias the armature assembly against the thrust bearing, each of the arms having a tab projecting therefrom, each of the tabs bending around the edge to form a stop for the prevention of brush assembly rotation.