Title:
ELECTRICAL POWER-STEERING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/129509
Kind Code:
A1
Abstract:
The present invention relates to an electrical power-steering apparatus, and particularly, to an electrical power-steering apparatus that uses a worm gear to transfer assistive steering force from a drive motor to an output shaft, wherein: a bearing at the side opposite the drive motor is surrounded at the outer periphery thereof by a bearing-supporting member; a resilient ring member is coupled to an annular slot defined in the outer periphery of the bearing-supporting member; spherical bodies are configured to contact each other in between the outer peripheries of the resilient ring member and the bearing, through a through-hole defined in one side of the outer periphery of the bearing-supporting member; and a worm gear preloading mechanism is provided so as to reduce the gap generated at the portion of the worm gear and reduce rattling noises caused by the gap while improving assemblability at the same time.
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Inventors:
HONG, Sung Jong (2 Sampung Apt, Seocho-dong Seocho-gu, Seoul 137-070, 137-070, KR)
홍성종 (서울특별시 서초구 서초동 삼풍아파트 25동 1003호, 137-070 Seoul, 137-070, KR)
SONG, Kang Seok (101-701 Jugong 1-Danji Apt, Jeongwang 3-dongSiheung -Si, Gyeonggi-Do 429-785, 429-785, KR)
홍성종 (서울특별시 서초구 서초동 삼풍아파트 25동 1003호, 137-070 Seoul, 137-070, KR)
SONG, Kang Seok (101-701 Jugong 1-Danji Apt, Jeongwang 3-dongSiheung -Si, Gyeonggi-Do 429-785, 429-785, KR)
Application Number:
KR2010/008288
Publication Date:
October 20, 2011
Filing Date:
November 23, 2010
Export Citation:
Assignee:
NAMYANG IND.CO.,LTD (390 Mongnae-dong, Danwon-guAnsan-Si, Gyeonggi-Do 425-100, 425-100, KR)
남양공업㈜ (경기도 안산시 단원구 목내동 390번지, 425-100 Gyeonggi-Do, 425-100, KR)
HONG, Sung Jong (2 Sampung Apt, Seocho-dong Seocho-gu, Seoul 137-070, 137-070, KR)
홍성종 (서울특별시 서초구 서초동 삼풍아파트 25동 1003호, 137-070 Seoul, 137-070, KR)
남양공업㈜ (경기도 안산시 단원구 목내동 390번지, 425-100 Gyeonggi-Do, 425-100, KR)
HONG, Sung Jong (2 Sampung Apt, Seocho-dong Seocho-gu, Seoul 137-070, 137-070, KR)
홍성종 (서울특별시 서초구 서초동 삼풍아파트 25동 1003호, 137-070 Seoul, 137-070, KR)
International Classes:
B62D3/04; B62D5/04
Attorney, Agent or Firm:
KIM, Soon Woong (209 KICOX Venture Center, 188-5 Guro-dongGuro-gu, Seoul 152-050, 152-050, KR)
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