Patent · US Active

Cutting assembly of a chainsaw and saw chain

US9732795B2 · kind B2 · utility

1Cited by

4References

28Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Oliver Gerstenberger · Ditzingen, DE
Berthold Schell · Backnang, DE
Alexander Fuchs · Tuttlingen, DE
Jan Föhrenbach · Fellbach, DE

Key dates

Filing date	Jul 7, 2011
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Aug 27, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/909
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A cutting assembly of a chainsaw includes a saw chain and a guide bar (4) for guiding the saw chain (3) along a peripheral edge (5) of the guide bar. The saw chain (3) has drive links (6) having drive bases (7) which with their side surfaces (8, 8′) are slidingly guided between the side walls (9) of a guide groove (10) of the guide bar (4) with the formation of a friction pairing. Lubricant pockets (11) are formed in the side surface (8). The lubricant pockets (11) are only open toward the corresponding side wall (9) of the guide groove (10) and are otherwise closed. Offside the lubricant pockets (11), the side surface (8) has a flat sliding surface (12) which slides on the side wall (9) of the guide groove (10). The lubricant pocket (11) has a mean diameter and a maximum depth. The ratio of the mean diameter to the maximum depth lies in a range of 5.0 up to and including 25.0.

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