Patent · US Expired

Percussion electrical hand-held tool

US6520266B2 · kind B2 · utility

60Cited by

4References

8Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Hans-Werner Bongers-Ambrosius · Munich, DE
Martin Richter · Stuttgart, DE
Konrad Artmann · Schondorf am Ammersee, DE

Key dates

Filing date	Jul 11, 2001
Grant date	Feb 18, 2003
Priority date	—
Expiry date	Jul 11, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/221
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A percussion electrical hand-held tool including a housing (10), a percussion element (2) located in the housing, and a planetary gear unit (5) located in the housing (10) for converting a rotational movement (107) of the drive shaft (&ohgr;) of the hand-held tool (8) into a reciprocating movement (&ugr;) of the percussion element (2), with the planetary gear unit (5) including a sun gear (6) changing of a setting (&agr;) of which provides for adjusting of an impact amplitude of the reciprocating movement (&agr;) of the percussion element (2), and control unit located in the housing (10) for adjusting the impact amplitude in accordance with a manual axial force applied to the handle of the hand-held tool (8).

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