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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.:

US 9452777 B1

PDFFull Text
Date of Patent:
Sep. 27, 2016

Filed:

Nov. 18, 2013

Power-steering device

Applicant:

Hitachi Automotive Systems Steering, Ltd., Hiki-gun, Saitama, JP;

Inventors:

Toshiro Yoda, Higashimatsuyama, JP;

Takuya Ishihara, Kumagaya, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD., Saitama, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Joseph Rocca

Assistant Examiner:

Felicia L Brittman

Int. Cl.
CPC ...
B62D 5/06 (2006.01); H02K 1/28 (2006.01); H02K 5/173 (2006.01); H02K 7/06 (2006.01); B62D 5/09 (2006.01); B62D 5/04 (2006.01); B62D 6/00 (2006.01); F16C 35/063 (2006.01); F16C 35/067 (2006.01); H02K 11/00 (2016.01); B62D 5/083 (2006.01); B62D 5/12 (2006.01); B62D 5/14 (2006.01); B62D 5/22 (2006.01);
U.S. Cl.
CPC ...
B62D 5/064 (2013.01); B62D 5/04 (2013.01); B62D 5/06 (2013.01); B62D 5/083 (2013.01); B62D 5/092 (2013.01); B62D 5/12 (2013.01); B62D 5/14 (2013.01); B62D 5/22 (2013.01); B62D 6/00 (2013.01); B62D 6/003 (2013.01); F16C 35/063 (2013.01); F16C 35/067 (2013.01); H02K 1/28 (2013.01); H02K 5/173 (2013.01); H02K 5/1732 (2013.01); H02K 7/06 (2013.01); H02K 11/00 (2013.01);
Abstract

A power steering device is provided with a device body and a hollow motor. The device body has a steering system in which a piston is disposed on an output shaft via a ball screw mechanism so that a steering (rotational) torque is transmitted from an input shaft to the output shaft and converted to rotation of a sector shaft by axial movement of the piston for steering of steerable wheels. The hollow motor is connected to the outer circumference of the input shaft and driven by energization control based on driving support information from a vehicle-mounted camera and the like. A key and a key groove are provided on the outer circumference of the input shaft and the inner circumference of a rotor of the hollow motor, respectively, so as to constitute a key connection between the input shaft and the hollow motor.

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