Title:
GREASE COMPOSITION FOR ELECTRIC POWER STEERING DEVICE, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/034761
Kind Code:
A1
Abstract:
Provided are both a grease composition for an electric power steering device and an electric power steering device. The grease composition can keep a sufficiently low coefficient of friction in a sliding area between a steel and a resin over a long period, is less susceptible to being expelled from the sliding area, does not cause oil film shortage, and thus can minimize the occurrence of stick-slips. A grease composition for an electric power steering device, comprising a synthetic hydrocarbon oil which exhibits a density of 0.75 to 0.95g/cm3 at 15°C, a saturated aliphatic amide compound, boron nitride, a glycerin fatty acid partial ester, and a metal-soap based thickener; and an electric power steering device using the grease composition.
Inventors:
ARAI TAKASHI (JP)
SAKAI KAZUMI (JP)
SHITARA YUJI (JP)
TANIUCHI SATOSHI (JP)
SHIINO KOHTARO (JP)
SUZUKI TATSURO (JP)
SAKAI KAZUMI (JP)
SHITARA YUJI (JP)
TANIUCHI SATOSHI (JP)
SHIINO KOHTARO (JP)
SUZUKI TATSURO (JP)
Application Number:
PCT/JP2013/073105
Publication Date:
March 06, 2014
Filing Date:
August 29, 2013
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD (JP)
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD (JP)
International Classes:
B62D5/04; C10M169/00; C10M105/04; C10M107/02; C10M117/00; C10M125/26; C10M129/76; C10M133/16; C10N20/00; C10N30/00; C10N30/06; C10N40/04; C10N50/10
Foreign References:
JPH08209167A | 1996-08-13 | |||
JP2011225781A | 2011-11-10 | |||
JP2008231293A | 2008-10-02 | |||
JP2008208199A | 2008-09-11 | |||
JP2005133791A | 2005-05-26 | |||
JP2002371290A | 2002-12-26 | |||
JP2003003185A | 2003-01-08 | |||
JP2008208199A | 2008-09-11 | |||
JP2002363589A | 2002-12-18 | |||
JP2007191523A | 2007-08-02 |
Other References:
See also references of EP 2891702A4
Attorney, Agent or Firm:
MOEGI PATENT OFFICE (JP)
Patent business corporation It burns and is ぎ特許事務所. (JP)
Patent business corporation It burns and is ぎ特許事務所. (JP)
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