Title:
STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039009
Kind Code:
A1
Abstract:
Provided is a steering device having a lock nut that fixes the outer ring of a steering nut screwed to a rack bar and in which a loosening prevention protrusion formed in a lock nut body is brought into contact with a radial abutting section and loosening of the lock nut is suppressed by frictional force, a lock nut recess for reducing mechanical rigidity is formed on the outer circumferential surface of the loosening prevention protrusion, external force acting from the outer ring is buffered by the lock nut recess, and decreases in the area of contact between the loosening prevention protrusion and the radial abutting section are thereby suppressed.
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Inventors:
ENOMOTO MASATOSHI (JP)
Application Number:
PCT/JP2020/022232
Publication Date:
March 04, 2021
Filing Date:
June 05, 2020
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16B37/00; B62D5/04; F16B39/284; F16C19/06; F16C33/64; F16C35/077; F16H25/22; F16H25/24
Domestic Patent References:
| WO2018135107A1 | 2018-07-26 | |||
| WO2009101794A1 | 2009-08-20 |
Foreign References:
| JP2007132480A | 2007-05-31 | |||
| JP2001254749A | 2001-09-21 | |||
| US20120298439A1 | 2012-11-29 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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