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. 11, 2014
Filed:
Aug. 13, 2012
Dennis Fuechsel, Schwaebisch Gmuend, DE;
Ekkehard Kneer, Wendlingen, DE;
Jens Hafermalz, Waeschenbeuren, DE;
Arne Kuhlen, Ostenfelde, DE;
Marco Grau, Schwaebisch Gmuend, DE;
Dennis Fuechsel, Schwaebisch Gmuend, DE;
Ekkehard Kneer, Wendlingen, DE;
Jens Hafermalz, Waeschenbeuren, DE;
Arne Kuhlen, Ostenfelde, DE;
Marco Grau, Schwaebisch Gmuend, DE;
ZF Lenksysteme GmbH, Schwaebisch Gmuend, DE;
Abstract
An electric power-assisted steering system of a motor vehicle comprises a helical pinion which engages into a helical gear. A reloading device comprises a reloaded pressure piece which presses the helical pinion into the toothing of the helical gear. The requirements of assembly are reduced and the elastically urging of the helical pinion or the worm need not be adjusted during assembly since the necessary elastically urging is automatically adjusted such that friction in the gearing is minimized, improved efficiency is achieved and the spring force can be held as constant as possible throughout the service life and unwanted noise development in the gearing can be largely reduced.