IP Library Granted Patent US 7,815,356
Granted Patent B2
US 7,815,356 · App. 11/852,487 · Granted Oct 19, 2010

Illuminating hand-held power tool

Assignee: Robert Bosch GmbH
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Quick Facts
Patent No.
US 7,815,356
App. No.
11/852,487
Granted
Oct 19, 2010
Kind
B2
Abstract

A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.

Claims (12)

1. A hand-held power tool used in a working direction for an insertion tool directed towards a working area, comprising:

a housing;

a tool fitting for receiving said insertion tool and located in a front region of the housing facing the working area; and

at least one passive illuminating element for illuminating the working area, wherein said at least one passive illuminating element is configured as an optical waveguide having a proximal end adjacent to said tool fitting and a distal end opposite said proximal end, said proximal end being bent into a ring around said tool fitting, said distal end having a solid cross section and receiving at least one active illuminating element, both the at least one passive illuminating element and the at least one active illuminating element radiating light in a same predetermined direction essentially parallel to the working direction, the ring radiating light in the working direction and providing direct illumination of the working area.

2. A hand-held power tool as defined in claim 1 , wherein said proximal end is configured as a closed ring.

3. A hand-held power tool as defined in claim 1 , wherein said distal end comprises an opening for receiving said at least one active illuminating element.

4. A hand-held power tool as defined in claim 1 , wherein said optical waveguide comprises at least one branching at which said optical waveguide separates.

5. A hand-held power tool as defined in claim 4 , wherein said at least one branching projects outward from said optical waveguide and light from the at least one braching radiates outwardly at a free end of said at least one branching.

6. A hand-held power tool as defined in claim 1 , further comprising a transmission housing, wherein said optical waveguide is accommodated on an end face of said transmission housing.

7. A hand-held power tool as defined in claim 1 , wherein said optical waveguide is designed as one piece.

8. A hand-held power tool as defined in claim 1 , wherein said optical waveguide is designed as a part having a plurality of components.

9. A hand-held power tool as defined in claim 8 , wherein said components are connected with each other so that light from one component is directed into an other component connected to the one component.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2007
From: LUTZ, MANFRED; YEOH, SIM TEIK; ESENWEIN, FLORIAN
To: ROBERT BOSCH GMBH
Reel/Frame 019802/0326 →
Priority Claims (1)
DE 10 2006 045 157 · Sep 25, 2006 · national
Continuity (1)
Related Publication 20080074865A1 · Mar 27, 2008