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:
Oct. 06, 2020
Filed:
Aug. 09, 2017
Thyssenkrupp Presta Ag, Eschen, LI;
Thyssenkrupp Ag, Essen, DE;
Marius Breuer, Fishers, IN (US);
Janick Durot, Widnau, CH;
Paul Schwarzhans, Feldkirch, AT;
Joachim Tuertscher, Feldkirch, AT;
Robert Josef Maerk, Feldkirch, AT;
THYSSENKRUPP PRESTA AG, Eschen, LI;
THYSSENKRUPP AG, Essen, DE;
Abstract
A method for producing a length-adjustable steering shaft having a hollow shaft in which a toothed shaft is received so as to be axially telescopic. The toothed shaft has a toothing with teeth on an external circumference that extend in the axial direction and which engages in a form-fitting manner in an inner toothing of the hollow shaft. A sliding layer of thermoplastic plastics material is at least in portions attached between the inner toothing and the toothing. In order to enable an improved fastening of the sliding layer to the toothing, prior to attaching the sliding layer, form-fitting elements which for forming a form-fitting connection that is effective in the axial direction are brought to engage with the sliding layer are configured in the region of the toothing of the toothed shaft or the inner toothing of the hollow shaft.