Title:
ELECTRONIC POWER STEERING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/004897
Kind Code:
A1
Abstract:
An electronic power steering apparatus, according to one embodiment of the present invention, comprises: an output shaft rotated by means of a reduction gear connected to a driving motor; a ball screw having an upper end coupled to a lower end of the output shaft, and having outer circumferential screw grooves formed on an outer circumferential surface thereof to rotate in conjunction with the output shaft; a ball nut having gear teeth formed on an outer circumferential surface thereof and inner circumferential screw grooves corresponding to the outer circumferential screw grooves formed on an inner circumferential surface thereof, the ball nut being coupled to the ball screw via a ball and sliding in an axial direction; and a sector shaft, coupled to the gear teeth of the ball nut, for operating a pitman arm while rotating during the axial sliding of the ball nut.
Inventors:
KO KYUNG MIN (KR)
PARK JUNG SIK (KR)
AHN SANG HEE (KR)
PARK JUNG SIK (KR)
AHN SANG HEE (KR)
Application Number:
PCT/KR2019/007642
Publication Date:
January 02, 2020
Filing Date:
June 25, 2019
Export Citation:
Assignee:
MANDO CORP (KR)
International Classes:
B62D5/04; B62D3/04; B62D3/06; B62D6/10; F16H1/02; F16H25/20
Foreign References:
| JPH05124527A | 1993-05-21 | |||
| KR20180045236A | 2018-05-04 | |||
| JP2007057012A | 2007-03-08 | |||
| KR20170040493A | 2017-04-13 | |||
| KR20100038894A | 2010-04-15 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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