Patent · US Active

Hand-held power tool with a belt tensioning device

US7823653B2 · kind B2 · utility

3Cited by

21References

3Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Ralf Meixner · Germaringen, DE
Guenther Veik · Matrei in Osttirol, AT
Hans-Joerg Rieger · Bludenz, AT

Key dates

Filing date	Sep 16, 2008
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Dec 8, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25F5/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A hand-held power tool for driving a working tool (1) includes a drive belt (3), first and second arms (5a, 5b) longitudinally displaceable relative to each other and carrying respective deflection rollers (6) of the drive belt (3), a belt tensioning device (4) located between the first and second arms (5a, 5b) and including a spring (8) preloaded against the first arm (5a), and a displaceable pressure piston (9) located between the spring (8) and the second arm (56).

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