Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2016/009750
Kind Code:
A1
Abstract:
An electric actuator (10) such that a nut (52) threadedly engaged with a sliding screw shaft (18) is displaced along an axial direction under the operation of a motor (12), the sliding screw shaft (18) being made of a light metal or light metal alloy. A diamond-like carbon film (50, 60) is formed on at least either a portion of screw threads (58) of the nut (52) that is located at least within three threads from a starting end in the axial direction, or screw threads (48) of the sliding screw shaft (18).
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Inventors:
NAKAYAMA TORU (JP)
SUGIYAMA TORU (JP)
MASUI RYUICHI (JP)
OKUHIRA HIROYUKI (JP)
SUGIYAMA TORU (JP)
MASUI RYUICHI (JP)
OKUHIRA HIROYUKI (JP)
Application Number:
PCT/JP2015/066692
Publication Date:
January 21, 2016
Filing Date:
June 10, 2015
Export Citation:
Assignee:
SMC CORP (JP)
International Classes:
F16H25/20; C01B31/02; C23C28/00
Foreign References:
| JP2005282708A | 2005-10-13 | |||
| JP2008051335A | 2008-03-06 | |||
| JP2003294102A | 2003-10-15 | |||
| JPH08200466A | 1996-08-06 | |||
| JP2012159124A | 2012-08-23 | |||
| JPH11247962A | 1999-09-14 | |||
| JP2007247534A | 2007-09-27 |
Other References:
See also references of EP 3173665A4
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
Takehiro Chiba (JP)
Takehiro Chiba (JP)
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