Title:
STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/209016
Kind Code:
A1
Abstract:
An electric power steering device (100) comprises: a first pinion gear (16) that is provided on a steering shaft (11) and rotates with the steering shaft (11); a drive shaft (22) that is rotationally driven by an electric motor (21); a second pinion gear (23) that is provided on the drive shaft (22) and rotates together with the drive shaft (22); a first biasing mechanism (60) that biases a rack shaft (12) toward the first pinion gear (16); and a second biasing mechanism (70) that biases the rack shaft (12) toward the second pinion gear (23). The first holding force by which the first pinion gear (16) is held on the rack shaft (12) by the rack shaft (12) being biased by the first biasing mechanism (60) and the second holding force by which the second pinion gear (23) is held on the rack shaft (12) by the rack shaft (12) being biased by the second biasing mechanism (70) are different.
Inventors:
MASUDA HIROKI (JP)
ITO TAKUZO (JP)
SHIMODA KATSUMI (JP)
AOYAMA MASASHI (JP)
KITSUDA SHIN (JP)
YAMADA HIROSHI (JP)
CAI GUANHUAMR (JP)
ITO TAKUZO (JP)
SHIMODA KATSUMI (JP)
AOYAMA MASASHI (JP)
KITSUDA SHIN (JP)
YAMADA HIROSHI (JP)
CAI GUANHUAMR (JP)
Application Number:
PCT/JP2021/044749
Publication Date:
October 06, 2022
Filing Date:
December 06, 2021
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
B62D3/12; B62D5/04
Domestic Patent References:
| WO2017010345A1 | 2017-01-19 |
Foreign References:
| JP2017154634A | 2017-09-07 | |||
| JP2019089355A | 2019-06-13 | |||
| JP2014084002A | 2014-05-12 | |||
| JP2020001558A | 2020-01-09 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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