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. 20, 2024
Filed:
Oct. 04, 2019
Robert Bosch Gmbh, Stuttgart, DE;
Jie Bao, Shanghai, CN;
Bernhard De Graaff, Karlsruhe, DE;
Daniel Cettier, Karlsruhe, DE;
Guang Qiao, Shanghai, CN;
Holger Thoene, Rastatt, DE;
Otmar Hertwig, Buehl, DE;
Volker Hertweck, Baden-Baden, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for producing a gear worm () which is located in particular on an armature shaft () of an electromotive drive unit (), wherein firstly a worm gear () having screw flanks () axially opposite one another on a longitudinal axis () is formed by means of a rolling tool, and subsequently a groove structure () which is concentric about the longitudinal axis () is formed on the screw flanks () by means of an additional process step. The invention also relates to a gear worm () produced according to the method according to the invention, and to a transmission drive unit () containing such a gear worm ().