Electrical device comprising a carbon brush shape adapting device
AssigneeRobert Bosch GmbH
InventorFlorian Esenwein
Life of this patent
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Abstract
In an electrical device, in particular a power tool, equipped with a commutator motor, and in an accessory for an electrical device of this kind, a carbon brush shape adapting device is an integral component of the electrical device or of the accessory.
Claims12
An electrical device arranged in a housing, comprising:
- a commutator motor;
- a carbon brush;
- and
- a carbon brush shape adapting device which is configured as a grinding device with a rough surface region and as congruent in shape to a desired shape of said carbon brush, the grinding device formed integrally with the electrical device to extend from a surface of the housing in a non-detachable manner, wherein said rough surface region comprises either a file plate or a rasp plate permanently attached to the integral grinding device.
An accessory for an electrical device, the electrical device comprising a commutator motor and a carbon brush arranged in a housing, wherein the accessory comprises a carbon brush shape adapting device which is configured as a grinding device with a rough surface region and as congruent in shape to a desired shape of said carbon brush, wherein said grinding device is an integral component of the accessory that extends from a surface of the housing in a non detachable manner and comprises either a file plate or a rasp plate permanently attached to the integral grinding device.
Dependencies are inferred from the claim text.