US 2017/0250038 A1Published application

Electric Power Tool

AssigneeRobert Bosch GmbH

InventorsFlorian Esenwein, Manfred Lutz, Achim Trick, Thomas Schomisch

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Abstract

An electric power tool has a tool receptacle and a tool housing in which a drive motor for driving the tool receptacle is arranged. The drive motor is switchable on and off via an electric switch. An operating part for indirectly actuating the switch is arranged on the tool housing and extends approximately parallel to a longitudinal axis of the tool housing. The operating part is lever-like and is pivotably arranged on the tool housing. An actuating member of the switch is displaceable approximately parallel to the longitudinal axis by an actuating force that acts on the operating part approximately perpendicularly to the longitudinal axis. The drive motor is switched on by the actuating force acting on the operating part against a restoring force of the switch, and the drive motor is switched off automatically, via the restoring force, when the operating part is released by a user.

Claims15

Dependent claims

An electric power tool, comprising:

a tool receptacle;
and
a tool housing in which a drive motor configured to drive the tool receptacle is arranged, wherein:
the drive motor is configured to be switched on and off via an electric on/off switch,
an operating part for at least indirectly actuating the on/off switch is arranged on the tool housing, the operating part at least regionally extends at least approximately parallel to a longitudinal axis of the tool housing,
the operating part is configured as a lever and is arranged pivotably on the tool housing,
an actuating member of the electric on/off switch is displaceable at least approximately parallel to the longitudinal axis by an actuating force that acts on the operating part at least approximately perpendicularly to the longitudinal axis,
the drive motor is configured to be switched on when the actuating force acts on the operating part counter to a restoring force of the electric on/off switch, and
the drive motor is configured to be switched off automatically when the operating part is released by a user, due at least in part to the restoring force of the electric on/off switch.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/500,147Filed 5 May 2015
Priority: DE 10 2014 214 982.730 Jul 2014
Published: 31 Aug 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01H 21/10
Cases; Covers: casing of switch constituted by a handle serving a purpose other than the actuation of the switch
B24B 23/028
With rotating grinding tools; Accessories therefor: angle tools
B25F 5/00
Details or components of portable power-driven tools not particularly related to the
H01H 21/24
Operating parts, e.g. handle: biased to return to normal position upon removal of operating force