Patent · US Active

Impact wrench and control method for an impact wrench

US9469019B2 · kind B2 · utility

5Cited by

4References

13Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Dieter Profunser · Feldkirch, AT
Peter Brugger · Feldkirch, AT
Jochen Kuntner · Dornbirn, AT

Key dates

Filing date	Apr 19, 2010
Grant date	Oct 18, 2016
Priority date	—
Expiry date	May 30, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B23/1475
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A control method according for an impact wrench includes ascertaining whether the impact wrench applies an impact when the drive shaft rotates in a lower speed range. The speed of the drive shaft then is increased to a higher speed range as a function of an ascertained impact during the rotation in the lower speed range.

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