The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2007
Filed:
Jul. 30, 2003
Johannes Menzel, Wernau, DE;
Günter Wolf, Oppenweiler, DE;
Helmut Lux, Waiblingen, DE;
Jens Kutzbach, Schlaitdorf, DE;
Johannes Menzel, Wernau, DE;
Günter Wolf, Oppenweiler, DE;
Helmut Lux, Waiblingen, DE;
Jens Kutzbach, Schlaitdorf, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
An antivibration element () is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring () and at least one guide. An end section () of the coil spring () is fixed to the guide. In order to provide a progressive characteristic line of the coil spring () in a simple way, the coil spring () has a transition section (), which borders at the end section () and is guided with play on the guide. When the coil spring is under load, the turns of the transition section come at least in part into contact engagement with a helically-shaped slot in the guide so that the spring stiffness of the antivibration unit increases.