Patent · US Active

Wobble drive of a hand-held power tool

US8403075B2 · kind B2 · utility

11Cited by

7References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerd Schlesak · Tamm, DE
Juergen Lennartz · Esslingen am Neckar, DE
Stefan Holst · Küsnacht (ZH), CH
Klaus Kuespert · Echterdingen, DE

Key dates

Filing date	Oct 22, 2008
Grant date	Mar 26, 2013
Priority date	—
Expiry date	Mar 27, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/331
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a wobble drive of a hand-held machine tool, particularly a drilling or chipping hammer, having a drive shaft, a wobble bearing disposed on the drive shaft, and a wobble plate supported on the wobble bearing. At least two wobble fingers having wobble finger axes being provided on the wobble plate. The invention provides that the axes of the wobble fingers form an angle different from 180°.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.