Spring type guide bar stop for portable power chain saw

US4123843A · kind A · utility

Assignee

• Firma Andreas Stihl AG & Co. · DE

Inventors

• Peter Bauer · Nuremberg, DE
• Guenter Dietzsch · Fellbach, DE
• Goetz Landwehr · Winnenden, DE
• Gotthilf Schulin · Fellbach, DE

Key dates

• Filing date: Jul 18, 1977
• Grant date: Nov 7, 1978
• Expiry date: Jul 18, 1997

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B27B17/0083
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A spring action guide bar stop for portable power chain saw is located adjacent the saw housing near where the chain returns to the housing to absorb and dampen vibration during operation of the saw. The spring stop is preferably a leaf spring coiled into a loop so that the side of the loop contacts the object being cut with friction dampening being obtained by providing frictional contact between the ends of the spring loop.