IP Library Granted Patent US 8,529,084
Granted Patent B2
US 8,529,084 · App. 13/119,406 · Granted Sep 10, 2013

Hand-held power tool

Inventor: Heiko Roehm (Stuttgart, DE)
Assignee: Robert Bosch GmbH
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,529,084
App. No.
13/119,406
Granted
Sep 10, 2013
Kind
B2
Abstract

A hand-held power tool is equipped with a lighting element for illuminating the working field, the lighting element including a light source and a trigger switch for activating or adjusting a drive motor forming a component of the lighting element in such a way that light beams emitted by the light source are guided via the trigger switch to the working field.

Claims (25)

1. An electrically operated hand-held power tool comprising:

a housing;

a drive motor situated in the housing;

a first trigger switch for activating the drive motor;

a second trigger switch performing a power tool operation function different from the first trigger switch and movable relative to the housing; and

an illuminating element for illuminating a working field of the power tool, the illuminating element including a light source;

wherein the second trigger switch forms a component of the illuminating element, such that light beams emitted by the light source are guided via the second trigger switch to the working field.

2. The hand-held power tool as recited in claim 1 , wherein the power tool is one of a rechargeable screwdriver or rechargeable drill.

3. The hand-held power tool as recited in claim 1 , wherein the light source is situated on the housing outside of the second trigger switch and the light beams of the light source are directed at the trigger switch.

4. The hand-held power tool as recited in claim 1 , wherein the second trigger switch is made at least partially of a transparent material.

5. The hand-held power tool as recited in claim 1 , wherein a surface of the second trigger switch is at least partially of reflective design.

6. The hand-held power tool as recited in claim 5 , wherein the surface of the second trigger switch is at least partially polished.

7. The hand-held power tool as recited in claim 5 , wherein the surface of the second trigger switch is at least partially mirror-coated.

8. The hand-held power tool as recited in claim 1 , wherein the second trigger switch has a curved contour for one of bundling or scattering light.

9. The hand-held power tool as recited in claim 1 , wherein the second trigger switch is movable relative to the housing.

10. The hand-held power tool as recited in claim 1 , wherein the second trigger switch has light-emitting surfaces which are at a distance from actuating surfaces of the second trigger switch, which are configured to be actuated by an operator.

11. The hand-held power tool as recited in claim 1 , wherein the light source is integrated into an interior of the second trigger switch.

12. The hand-held power tool as recited in claim 1 , wherein the second trigger switch actuates a rotation-reversing switch.

13. The hand-held power tool as recited in claim 1 , wherein the second trigger switch is a movable part of a power-on block.

14. The hand-held power tool as recited in claim 1 , wherein the second trigger switch is a movable part of a power-on arrest.

15. The hand-held power tool as recited in claim 1 , wherein the second trigger switch actuates a motor current switch.

16. The hand-held power tool as recited in claim 1 , wherein the second trigger switch adjusts the drive motor differently from the first trigger switch.

17. The hand-held power tool as recited in claim 1 , wherein the second trigger switch adjusts a rotational speed of the drive motor.

18. The hand-held power tool as recited in claim 1 , wherein the second trigger switch provides a power-on blocking of drive motor operation.

19. The hand-held power tool as recited in claim 1 , wherein the second trigger switch provides a power-on lock for continuous operation of the drive motor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2011
From: ROEHM, HEIKO
To: ROBERT BOSCH GMBH
Reel/Frame 026322/0016 →
Priority Claims (1)
DE 10 2008 042 426 · Sep 29, 2008 · national
Continuity (1)
Related Publication 20120106133A1 · May 3, 2012