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:
Jun. 19, 2018
Filed:
Jan. 11, 2016
Applicant:
Johnson Electric S.a., Murten, CH;
Inventors:
Yuan Chun Zhang, Shenzhen, CN;
Fa Yun Qi, Shenzhen, CN;
Jin An Nie, Shenzhen, CN;
Rui Feng Qin, Hong Kong, CN;
Assignee:
JOHNSON ELECTRIC S.A., Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 41/067 (2006.01); F16D 65/16 (2006.01); F16D 121/24 (2012.01); F16D 125/50 (2012.01); F16D 127/06 (2012.01);
U.S. Cl.
CPC ...
F16D 65/16 (2013.01); F16D 2121/24 (2013.01); F16D 2125/50 (2013.01); F16D 2127/06 (2013.01);
Abstract
An actuator of an electric parking brake system includes a motor, an output member, and a transmission device. The transmission device includes a housing, a self-locking unit and a transmission unit. The self-locking unit includes a fixed sleeve, and a driving member, a driven member and a lock holder that are rotatable with respect to the sleeve. The lock holder supports lock elements arranged to prevent the driven member from turning unless it is driven by the driving member. A planetary gear unit may be provided as part of the transmission device.