Patent · US Active

Hedge trimmer

US8918998B2 · kind B2 · utility

6Cited by

48References

21Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Georg Heinzelmann · Winnenden, DE
Markus Hittmann · Waiblingen, DE
Antonio Fattorusso · Echterdingen, DE
Marcus Stein · Dresden, DE

Key dates

Filing date	Dec 17, 2009
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Oct 20, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01G3/053
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A hedge trimmer having a rear handle, a tubular handle and a blade arrangement with at least one cutter bar disposed in a cutter bar plane. An internal combustion engine drives the cutter bars in a reciprocating manner, and has a combustion chamber and a crankshaft mounted in a crankcase so as to be rotatable about an axis of rotation. The combustion chamber faces the rear handle, and the crankcase faces the blade arrangement. The blade arrangement has a longitudinal central axis, and the hedge trimmer has a longitudinal plane that is disposed parallel to the axis of rotation of the crankshaft and transverse to the cutter bar plane. The longitudinal central axis of the blade arrangement lies in the longitudinal plane of the hedge trimmer.

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