Title:
POWER STEERING DEVICE AND ASSEMBLY METHOD THEREOF
Document Type and Number:
Japanese Patent JP2015058834
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve an assembly working property of a ball bearing outer race of a ball screw mechanism in a power steering device.SOLUTION: A disc spring 42 is disposed between a rolling shaft storage part 30 and an outer race 41 of a ball bearing 24 for supporting a ball nut 20, the disc spring 42 energizes the outer race 41 in a rolling shaft negative direction side, the outer race 41 is energized, and in the state the outer race is fastened and fixed. A fastening load of a lock nut 25 can be reduced, and accuracy management of fastening torque is made easy.
More Like This:
| WO/2011/054475 | STEER-BY-WIRE STEERING SYSTEM HAVING AN ELECTROMECHANICAL STEERING LOCK |
| WO/2003/010040 | STEER UNIT FOR STEER-BY-WIRE |
| JP4501599 | Electric power steering device |
Inventors:
YOSHIDA OSAMU
MARUYAMA TATSUYOSHI
SHIRAKUBO KIYOTAKA
MARUYAMA TATSUYOSHI
SHIRAKUBO KIYOTAKA
Application Number:
JP2013194385A
Publication Date:
March 30, 2015
Filing Date:
September 19, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD
International Classes:
B62D5/04; F16C19/06; F16C25/08; F16C33/62; F16C33/64; F16C35/067; F16H25/22
Domestic Patent References:
| JP2010069995A | 2010-04-02 | |||
| JP2006176025A | 2006-07-06 |
Attorney, Agent or Firm:
Masamichi Ayada