Title:
ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2019056460
Kind Code:
A
Abstract:
To provide an electric actuator capable of preventing biting from being caused between a screw shaft and a nut by the collision of a rotation restricting member provided on the screw shaft with the end face of the nut.SOLUTION: The electric actuator includes a motor part, and a motion conversion mechanism for converting the rotating motion of the motor part into linear motion, the motion conversion mechanism having a nut 17 rotatably supported, and a screw shaft 18 to be moved in the axial direction along with the rotation of the nut 17, the screw shaft 18 being provided with a rotation restricting member 21 protruded in the outer diameter direction for restricting the rotation around the axis. Between the rotation restricting member 21 and an end face 17a of the nut 17, an elastic member 27 is provided.SELECTED DRAWING: Figure 3
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Inventors:
SAITO TAKAHIDE
MIKURIYA ISAO
KURITA MASAO
MIKURIYA ISAO
KURITA MASAO
Application Number:
JP2017182337A
Publication Date:
April 11, 2019
Filing Date:
September 22, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H25/22; F16H25/20; F16H25/24; H02K7/06
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Hideaki Nomura
Tsuyoshi Kumano
Hideaki Nomura