Title:
An electric actuator and an actuator unit
Document Type and Number:
Japanese Patent JP6230873
Kind Code:
B2
Abstract:
An actuator is driven even if a jammed state, a motor stop, or the like occurs. An electromechanical actuator includes: an electric motor attached to a housing; a conversion mechanism portion having a drive portion that is driven to rotate by the electric motor and a driven portion that is driven by the drive portion and advances and withdraws in a predetermined advancing and withdrawing direction, the conversion mechanism portion being accommodated in the housing; a sliding support mechanism that transmits rotational force of the electric motor to the drive portion and allows the drive portion to slide in the advancing and withdrawing direction with respect to the electric motor; and a piston portion controlled so as to be at a predetermined position in the advancing and withdrawing direction with respect to the housing by means of pressure of a fluid supplied to and discharged from the housing.
Inventors:
Hirai
Application Number:
JP2013221165A
Publication Date:
November 15, 2017
Filing Date:
October 24, 2013
Export Citation:
Assignee:
Nabtesco Co., Ltd.
International Classes:
F15B15/14; F15B20/00; H02K7/06
Domestic Patent References:
| JP2007155075A | ||||
| JP2012060725A | ||||
| JP2012046169A | ||||
| JP3009105A | ||||
| JP2013099175A |
Foreign References:
| US5960693 | ||||
| US4290240 | ||||
| US8277205 | ||||
| US20120304787 | ||||
| US6989646 | ||||
| US8109163 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda