Patent · US Active

Chain saw

US8615890B2 · kind B2 · utility

7Cited by

4References

12Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Gunter Wolf · Eberdingen, DE
Maximilian Eberhardt · Eßlingen, DE
Wolfgang Weissert · Winnenden, DE

Key dates

Filing date	Mar 21, 2011
Grant date	Dec 31, 2013
Priority date	—
Expiry date	Apr 12, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB27B17/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A chain saw includes a guide bar for a saw chain, a housing, a sprocket wheel cover, and a stud fixed on the housing for threadably fastening the sprocket wheel cover and the guide bar. The free thread end of the stud has a maximum usable screw-in depth (tmax) for a nut. A stop for the sprocket wheel cover having a stop surface as well as a support surface for contact engaging the stop surface are provided. In the mounted state of the guide bar, a distance (a) remains between the stop surface and the support surface. The support surface contact engages the stop surface when the guide bar is removed and the nut is tightened and screwed onto the studs to a stop screw-in depth. The stop is configured in such a manner that the maximum usable screw-in depth (tmax) is greater than the stop screw-in depth.

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