Patent · US Expired

Power tool

US7397153B2 · kind B2 · utility

17Cited by

9References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Manfred Buck · Jeffery Road, DE
Siegfried Fehrle · Echterdingen, DE
Uwe Engelfried · Esslingen am Neckar, DE
Michael Weiss · Dittelbrunn, DE

Key dates

Filing date	Aug 2, 2005
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Apr 17, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH02K23/66
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power tool has an electric motor, a brush element that is supported rotatably for switchover between clockwise operation and counterclockwise operation of the electric motor and includes a brush holder, and a switch unit, embodied separately from the brush element and connected in form-locking fashion to the brush element, which switch unit has an actuating element for actuation by a user, can be slipped in the axial direction onto the brush element, located on the electric motor, and is connected in the axial direction to the brush element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.