Patent · US Active

Handheld work apparatus

US8567520B2 · kind B2 · utility

4Cited by

10References

18Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Gunter Wolf · Eberdingen, DE
Johannes Menzel · Oberhausen, DE
Maximilian Eberhardt · Eßlingen, DE
Ulrich Kapinsky · Waiblingen, DE

Key dates

Filing date	Mar 4, 2011
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Oct 31, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB27B17/0033
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A handheld work apparatus includes a drive motor (28) to drive a tool and at least one handle (3) as well as at least one anti-vibration element (9) that includes a coil spring (10). The coil spring (10) is operatively connected to the handle (3) at one end and with the drive motor (28) at the other end. The anti-vibration element has a tear-off guard (29) which extends through the anti-vibration element (9). A centering element (21) is arranged on the tear-off guard (29) to avoid, in a simple manner, that the tear-off guard moves radially outwards.

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