Patent · US Expired

Chuck for a boring tool

US6543789B2 · kind B2 · utility

20Cited by

3References

12Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Jens Frenzel · Fürstenfeldbruck, DE
Uto Plank · Freising, DE
Helmut Nussrainer · Isen, DE

Key dates

Filing date	May 17, 2001
Grant date	Apr 8, 2003
Priority date	—
Expiry date	May 17, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T279/17786
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A chuck for receiving a tool shank of a boring tool and including radially displaceable engagement members (5) formlockingly engageable in the radial recesses (3) formed in the clamp region of the tool shank, an axially displaceable control sleeve (6) for radially displacing the engagement members between their engagement and release positions, and a resilient holding member (8) arranged between the control sleeve (6) and the clamp region of the tool shank and having a detent element (9) for preventing displacement of the control sleeve into its locking position (7) from its release position (10) into which the control sleeve was displaced upon insertion of the boring tool.

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