Patent · US Expired

Chuck for a percussion hand-held power tool

US6659473B2 · kind B2 · utility

18Cited by

6References

5Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Armin Below · Kaufering, DE
Uto Plank · Freising, DE
Erwin Manschitz · Germering, DE
Josef Anzinger · Munich, DE
Harald Geiger · Schwanau, DE

Key dates

Filing date	Aug 29, 2001
Grant date	Dec 9, 2003
Priority date	—
Expiry date	Aug 29, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T279/17811
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A chuck for a percussion hand-held power tool including a coupling sleeve (3) for receiving a working tool and having two diametrically opposite, slot-shaped, radial openings (4, 4′) in which two locking members (5) radially and axially displace a locking sleeve 6 surrounding the coupling sleeve (3) and the locking members (5), and a spring-biased push-sleeve (8) formlockingly cooperating with the locking members (5), with the locking members (5) being supported against the inner surface (7) of the locking sleeve (6), extending into an interior of the coupling sleeve (3), and having each a radial dimension greater than a thickness of the coupling sleeve wall and a width decreasing toward a chuck axis (A).

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