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:
Feb. 22, 2005
Filed:
Dec. 15, 2001
Friedrich Löser, Riemerling, DE;
Siegfried Ellmann, Aschheim, DE;
Friedrich Löser, Riemerling, DE;
Siegfried Ellmann, Aschheim, DE;
ThyssenKrupp Automotive AG, Bochum, DE;
Abstract
The invention relates to a spring carrier for the chassis of a motor vehicle. Said carrier is used to support a coil spring () which is braced between two spring plates (). At least one of said spring plates () can be axially adjusted by means of a drive unit comprising a gearbox and an electric motor. Preferably, at least one part of the piston rod () and/or the shock-absorber tube () of a shock-absorber or a suspension strut is arranged inside the coil spring (). The aim of the invention is to develop one such spring carrier in such a way that the distance between the upper spring end and the vehicle body can be kept small in a cost-effective manner. To this end, the electric motor is embodied in the form of a ring motor having an external stator () and an internal rotor () which comprises a displacement nut on its inner side, said displacement nut axially displacing a spring plate carrier () connected to the spring plate () and externally embodied as a threaded spindle.