Patent · US Expired

Shank for a rotary and/or percussive tool

US7309195B2 · kind B2 · utility

1Cited by

4References

18Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Werner Kleine · Achim, DE
Hans-Werner Bongers-Ambrosius · Munich, DE
Josef Obermeier · Peiting, DE
Werner Britten · Riegelsberg, DE

Key dates

Filing date	Jun 20, 2003
Grant date	Dec 18, 2007
Priority date	—
Expiry date	Aug 19, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/953
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A shank for a rotary and percussive tool has a locking groove (3) arranged between two guided regions (1a, 1b) and axially closed at its opposite ends for receiving at least one radially displaceable and axially displaceable, within predetermined limits, locking member (4) of a chuck in which the shank is received, with the guide dimension (F) of the guide region being smaller than the width (B) of the axial region (A) of the locking groove (3) and that includes the radial extent of an entrain strip (2) provided in that region (A), and greater than the thickness (D) of the axial region measured in a direction transverse to the width measurement direction.

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