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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)
Application Number:
PCT/JP2013/073105
Publication Date:
March 06, 2014
Filing Date:
August 29, 2013
Export Citation:
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Assignee:
JX NIPPON OIL & ENERGY CORP (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:
JPH08209167A1996-08-13
JP2011225781A2011-11-10
JP2008231293A2008-10-02
JP2008208199A2008-09-11
JP2005133791A2005-05-26
JP2002371290A2002-12-26
JP2003003185A2003-01-08
JP2008208199A2008-09-11
JP2002363589A2002-12-18
JP2007191523A2007-08-02
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)
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