Patent · US Active

Filament cutterhead for a brushcutter

US9693500B2 · kind B2 · utility

2Cited by

9References

15Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

David Guenther · Waiblingen, DE
Thomas Hauber · Aalen, DE

Key dates

Filing date	Apr 27, 2015
Grant date	Jul 4, 2017
Priority date	—
Expiry date	Sep 12, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D34/4165
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A filament cutterhead for a brushcutter is able to be driven in a rotatable manner during operation in a rotational direction about a rotational axis. The filament cutterhead has a base body on which at least one cutting filament is retained and which has a lower face facing the ground during operation. The cutting filament extends from an outer face of the base body through an opening as far as an inner region of the base body which is open toward the lower face of the base body. In order to achieve a low degree of soiling of the filament cutterhead during operation, a shield element is provided in the inner region and the leading portion of the cutting filament in the inner region is arranged in the slipstream of the shield element relative to the rotational direction.

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