AUXILIARY HANDLE DEVICE

• US 20090038818A1
• Filed: 07/31/2008
• Published: 02/12/2009
• Est. Priority Date: 08/06/2007
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Eicher, Bernhard, Eicher, Roswitha, Esenwein, Florian, Schuller, Marcus, Heess, Stefan, Maute, Joerg
• Application Number:
  US12/183,157
• Publication Number:
  US 20090038818A1
• Time in Patent Office: Days
• US Class Current: 173/162.200
• CPC Class Codes: B24B 23/028 Angle tools
• CPC Class Codes: B25F 5/006 Vibration damping means
• CPC Class Codes: B25F 5/026 in the form of an auxiliary handle B25F5/024 takes precedence

Abstract

An auxiliary handle device, in particular for a hand-held power tool, has an auxiliary handle and a damping unit. The damping unit includes a rotation unit with at least one rotation element, which is provided to rotate about at least one rotation axis.

Claims

1. An auxiliary handle device, comprising an auxiliary handle;

a damping unit, said damping unit including a rotation unit with at least one rotation;

element which is configured to rotate about at least one rotation axis.

2. An auxiliary handle device as defined in claim 1, wherein said rotation unit includes at least one first rotation element with at least one first rotation axis, and at least one second rotation element with at least one second rotation axis that is different from said first rotation axis.

3. An auxiliary handle device as defined in claim 1, wherein said rotation element is an absorber mass element.

4. An auxiliary handle device as defined in claim 1, and further comprising a second such rotation element, so that there are at least two rotation elements located one after the other along an axial direction of said auxiliary handle.

5. An auxiliary handle device as defined in claim 1, wherein said rotation unit has a varying mass distribution along an axial direction of said auxiliary handle.

6. An auxiliary handle device as defined in claim 1, wherein said rotation element is supported such that it is oscillatable in at least one direction.

7. An auxiliary handle device as defined in claim 1, wherein said rotation unit includes at least one bearing element configured to support said rotation element.

8. An auxiliary handle device as defined in claim 7, wherein said bearing element is configured as a damping fluid.

9. An auxiliary handle device as defined in claim 7, wherein said bearing element is configured as an absorber mass element.

10. An auxiliary handle device as defined in claim 7, wherein said bearing element is located such that it is rotatable about at least one rotation axis which is different from said at least one rotation axis of said at least one rotation element.

11. An auxiliary handle device as defined in claim 1, wherein said rotation unit has at least one rotation element;

and further comprising a drive unit provided for producing a rotation moment for said at least one rotation element.

12. An auxiliary handle device as defined in claim 1, wherein said auxiliary handle includes a grip sleeve with at least a portion having a receiving area for said rotation unit.

13. An auxiliary handle device as defined in claim 12, wherein said grip sleeve includes a closing element for closing and opening said receiving area.

14. A hand-held power tool, comprising a main handle;

and an auxiliary handle device including an auxiliary handle; and

a damping unit, said damping unit including a rotation unit with at least one rotation element which is configured to rotate about at least one rotation axis.

15. A hand-held power tool as defined in claim 14, wherein the hand-held power tool is configured as an angle grinder.