Andreas Stihl Ag Co. Kg

Stabilus Gmbh

Dirk Schweinberger

Daniel Herbst

Rolf Mintgen

Georg Maier

Heiko Rosskamp

Volker Reber

Axel Knopp

Rainer Massmann

Karl-Heinz Darscheid

Stefan Bonnekessel

Alexander Erkert

Torsten Rickenberg

Jörg-Erwin Scheuer

Joachim Völlinger

Marcus Saak

A spring system has a first pulling part with a first fastening element connected by a tension spring to a second pulling part with a second fastening element. The pulling parts are moveable relative to one another so as to increase or relieve stressing on the tension spring. A damping device damps the movement of the pulling parts in relation to one another. A cylinder is fastened on the first pulling part and a piston 3 is axially displacesably arranged therein, subdividing the interior of the cylinder into a first cylinder chamber and a second cylinder chamber. A piston rod connected to the piston is arranged on the second pulling part. The interior of the cylinder is connected to the surroundings via one or more restrictor openings.

Spring system

A portable handheld work apparatus has a drive motor as well as an adjusting element for controlling the drive motor. The work apparatus has at least one actuating element. A movement of the actuating element is transmitted to the adjusting element via a transmitting unit. A good operator control is achieved when at least one transmitting characteristic () of the transmitting unit runs nonlinearly as a function of the actuating displacement (s) of the actuating element.

Portable handheld work apparatus

Growing community of inventors

Karlsruhe, Germany

Dirk Schweinberger