Patent · US Active

Protective shield for a trimmer

US7836602B2 · kind B2 · utility

7Cited by

23References

21Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Klaus Langhans · Winnenden, DE
Josef Egger · Kufstein, AT
Kai-Ulrich Machens · Stuttgart, DE
Marcus Stein · Dresden, DE
Markus Herzog · Ergolding, DE
Dieter Kremsler · Löwenstein, DE

Key dates

Filing date	Oct 26, 2005
Grant date	Nov 23, 2010
Priority date	—
Expiry date	Dec 20, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D34/826
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A protective shield for a trimmer having a cutting head that is rotatable about an axis of rotation and supports a cutting thread that rotates about an axis of rotation with the cutting head and determines a cutting circle, covers at least partially the cutting circle. The protective cover has a base member and a cutting-to-length blade arranged on the base member so as to be positioned circumferentially relative to a cutting circle of the rotating cutting thread. The cutting-to-length blade has a cutting edge that, relative to the axis of rotation of the rotating cutting thread, is arranged in an axially displaced position displaced in an axial direction relative to the cutting circle. A device for axially deflecting the rotating cutting thread out of the cutting circle to the cutting edge is provided.

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