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US 7,960,891 B2Granted
Power tool with integrated auxiliary tool for replacing brushes
AssigneeRobert Bosch GmbH
InventorFlorian Esenwein
Life of this patent
Estimating the term…
Abstract
A power tool has an electric motor that includes a commutator, with which at least one commutator brush is acted upon with spring force via at least one commutator spring in the direction of a non-rotatable collector of the commutator. At least one auxiliary tool for adjusting the commutator spring is located on a component of the power tool.
Claims12
A power tool, comprising:
- a housing component formed as a brush cover;
- an electric motor that includes at least one commutator brush;
- at least one commutator spring acting upon said at least one commutator brush;
- at least one auxiliary tool extended longitudinally and located completely outside of said brush cover, said at least one auxiliary tool having a first end which is non-removably, fixedly secured to an underside of said brush cover outside of the latter and a second end longitudinally opposite the first end and configured for displacing said commutator spring;
- and
- a joint selected from the group consisting of a pivot joint and a swivel joint and arranged so that said auxiliary tool is movable in a way selected from the group consisting of rotated and swiveled, and both, using said joint
- on the underside of the brush cover and completely outside of the latter.
4 more elements
A power tool, comprising;
- a housing component formed as a brush cover;
- an electric motor that includes at least one commutator brush;
- at least one commutator spring acting upon said at least one commutator brush;
- at least one auxiliary tool extended longitudinally and having a first end and a second end longitudinally opposite the first end and configured for displacing said commutator spring;
- and
- a joint selected from the group consisting of a pivot joint and a swivel joint and arranged so that said auxiliary tool is movable in a way selected from the group consisting of rotated and swiveled, and both, using said joint on the underside of the brush cover, wherein said auxiliary tool is secured to said brush cover which is removable together with said auxiliary tool from said power tool so that said auxiliary tool can be used.
3 more elements
Dependencies are inferred from the claim text.