Patent · US Active

Hand-held power tool with locking nut

US7972199B2 · kind B2 · utility

4Cited by

3References

4Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Thomas Blatz · Kaufering, DE
Joachim Guenther · Ingolstadt, DE
Roland Meuer · Ettringen, DE
Friedemann Moeller · Munich, DE
Klaus Nagelschmied · Germering, DE

Key dates

Filing date	Dec 8, 2008
Grant date	Jul 5, 2011
Priority date	—
Expiry date	Nov 26, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB27B5/32
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A hand-held power tool includes a drive spindle (2) rotatable about a rotational axis (A) and provided at its free end with a clamping flange (3) and a locking thread (4) having at least one thread undercut (8), and a locking nut (7) tightenable on the locking thread (4) for securing a disc-shaped tool (5) between its clamping surface (6) and the clamping flange (3) of the drive spindle (2), with the thread undercut (8) having an axial length that corresponds to at least an axial length of an inner thread (9) of the locking nut (7).

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