Filament cutting head for a trimmer

US10694663B2 · kind B2 · utility

Assignee

• Andreas Stihl AG & Co. KG · DE

Inventors

• Sven Lang · Eßlingen, DE
• David Gunther · Weingarten, DE

Key dates

• Filing date: May 9, 2018
• Grant date: Jun 30, 2020
• Expiry date: Jul 28, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01D34/4167
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A rotatingly drivable filament cutting head for a trimmer, having a basic body on which a cutting filament is held. The cutting filament extends from outside the basic body through an opening into an interior region of the filament cutting head open to the surrounding area. A stop is arranged on the filament cutting head, so that, in a first position of the cutting filament, the stop delimits a filament portion of the cutting filament, which is insertable into the interior region, to an insertion length. A deflection element is arranged in the interior region so that the cutting filament can be switched from its first position, without the cutting filament being longitudinally displaced, into a second position. The cutting filament abuts against the deflection element in its second position and the stop does not delimit the length of the filament portion which is insertable into the interior region.