Patent · US Expired

Eccentric drive for a portable handheld work apparatus

US6598299B2 · kind B2 · utility

11Cited by

5References

12Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Thomas Stark · Waiblingen, DE
Florian Krane · Steinheim an der Murr, DE

Key dates

Filing date	Nov 6, 2001
Grant date	Jul 29, 2003
Priority date	—
Expiry date	Dec 11, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/18296
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to an eccentric drive (1) and especially to an eccentric drive for a portable handheld work apparatus having a wheel (3) driven by a drive motor (2). A cam (5) is eccentrically fixed to an end face (4) of the wheel (3). The cam (5) is held by a connecting rod (6) and cylinder-shaped roller bodies (7) are mounted between the connecting rod (6) and the cam (5). The roller bodies (7) have axial ends (8) which engage in an annular slot (9) of the wheel (3). A holding element (11) is disposed on the cam (5) and limits the axial play of the roller bodies (7).

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