IP Library › Granted Patent US 9,573,257
Granted Patent B2
US 9,573,257 · App. 14/677,504 · Granted Feb 21, 2017

Handheld power tool, method for operating a handheld power tool

Inventors: Andreas Kynast (Stuttgart, DE); Guenter Lohr (Leinfelden-Echterdingen, DE)
Assignee: Robert Bosch GmbH
B25B23/18B25B21/00F21V33/0084H05B33/0842H05B33/0854H05B37/0227F21W2131/30
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Quick Facts
Patent No.
US 9,573,257
App. No.
14/677,504
Granted
Feb 21, 2017
Kind
B2
Abstract

A handheld power tool, in particular an electric handheld power tool, includes an actuable drive device configured to drive a tool and an illumination device. The illumination device is connected to an acceleration sensor and varies its generated light depending on movements of the handheld power tool that are detected by the acceleration sensor.

Claims (17)

1. A handheld power tool, comprising:

an actuable drive device configured to drive a tool; and

an illumination device connected to an acceleration sensor, the illumination device being configured to vary its generated light depending on movements of the handheld power tool that are detected by the acceleration sensor,

wherein the illumination device includes a mechanism configured to vary a light cone.

2. The handheld power tool according to claim 1 , wherein the illumination device includes a mechanism configured to direct the light cone.

3. The handheld power tool according to claim 1 , wherein the illumination device includes a mechanism configured to one or more of expand and narrow the light cone.

4. The handheld power tool according to claim 1 , wherein the mechanism includes a light-emitting diode array with a multiplicity of light-emitting diodes that are actuable independently of one another in order to direct, narrow, or expand a common generated light cone.

5. The handheld power tool according to claim 4 , wherein the light-emitting diode array is configured in a manner surrounding the tool.

6. The handheld power tool according to claim 1 , wherein the mechanism includes at least one displaceable lens having a variable transparency configured to influence the light cone.

7. The handheld power tool according to claim 1 , wherein the mechanism includes at least one reflector that is displaceable for influencing the light cone.

8. A method for operating a handheld power tool including an actuable drive device configured to drive a tool and an illumination device, comprising:

monitoring the handheld power tool for movements with an acceleration sensor; and

varying the light generated by the illumination device depending on the detected movements,

wherein a light cone of the illumination device is varied depending on the detected movements.

9. The handheld power tool according to claim 1 , wherein the handheld power tool is configured as an electric handheld power tool.

10. The handheld power tool according to claim 5 , wherein the light-emitting diode array is configured in a manner surrounding the tool coaxially.

11. The method according to claim 10 , wherein the light cone is directed, expanded, or narrowed depending on the detected movements.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2015
From: KYNAST, ANDREAS; LOHR, GUENTER
To: ROBERT BOSCH GMBH
Reel/Frame 036002/0101 →
Priority Claims (1)
DE 10 2014 206 271 · Apr 2, 2014 · national
Continuity (1)
Related Publication 20150283685A1 · Oct 8, 2015