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. 06, 2016
Filed:
Feb. 15, 2013
Applicant:
Johnson Electric S.a., Murten, CH;
Inventors:
Assignee:
JOHNSON ELECTRIC S.A., Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/16 (2006.01); F16H 57/00 (2012.01);
U.S. Cl.
CPC ...
F16H 1/16 (2013.01); F16H 57/0025 (2013.01); Y10T 74/19828 (2015.01);
Abstract
A drive unit includes an electric motor, a worm shaft coupled to the motor, a worm gear engaging with the worm shaft, and an output shaft connected to the worm gear. The motor has a motor shaft on which the worm shaft is fixed. The worm shaft is made of plastic. The drive unit further includes a metallic sleeve press fitted to the motor shaft. An outer profile of the sleeve is non-circular. A correspondingly shaped receiving hole is formed in the worm shaft to receive the sleeve. The sleeve rotates with the motor shaft and drives the worm shaft.