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Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2019/059355
Kind Code:
A1
Abstract:
This electric actuator is provided with a motor part and a motion conversion mechanism that converts a rotary motion of the motor part into a linear motion, wherein: the motion conversion mechanism has a nut 17 rotatably supported, and a screw shaft 18 which moves in the axial direction according to the rotation of the nut 17; the screw shaft 18 is provided with a rotation restriction member 21 restricting the rotation around the shaft such that the rotation restriction member 21 protrudes in the outer diameter direction; and an elastic member 27 is provided between the rotation restriction member 21 and an end surface 17a of the nut 17.

Inventors:
SAITO TAKAHIDE (JP)
MIKURIYA ISAO (JP)
KURITA MASAO (JP)
Application Number:
PCT/JP2018/035076
Publication Date:
March 28, 2019
Filing Date:
September 21, 2018
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H25/22; F16H25/20; F16H25/24; H02K7/06; F16D65/14; F16D121/24; F16D125/40
Foreign References:
JP2014088920A2014-05-15
DE102011014922A12012-09-27
JPH11150912A1999-06-02
US20080246421A12008-10-09
JPH04128523U1992-11-24
JPH10119795A1998-05-12
JP2016065605A2016-04-28
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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