File for filing the cutting tooth of a saw chain

US11007589B2 · kind B2 · utility

Assignee

• Andreas Stihl AG & Co. KG · DE

Inventors

• Thomas Lux · Welzheim, DE
• Friedrich Hollmeier · Welzheim, DE
• Georg Maier · Weisendorf, DE
• Bertil Stapel · Schorndorf, DE
• Tobias Grams · Waiblingen, DE
• Norbert Althoff · Lindlar, DE

Key dates

• Filing date: Sep 30, 2019
• Grant date: May 18, 2021
• Expiry date: Sep 30, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23D71/04
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a file for filing a saw tooth of a saw chain. The file includes a file body defining a circumferential direction and a circumference. The file body, in a cross section, has an unhewn guide surface and a file surface adjoining the unhewn guide surface in the circumferential direction. The unhewn guide surface extends over at least ⅙ of the circumference in the cross section.