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Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2018/051887
Kind Code:
A1
Abstract:
This electric actuator 1 comprises: a motor 7; a motion conversion mechanism 11 that converts rotational motion generated by the drive of the motor 7, to linear motion; and a first case 12 having the motion conversion mechanism 11 housed therein. The motion conversion mechanism 11 has: a rotating unit 30 that receives rotational motion from the motor 7 and rotates; and a linear motion unit 31 that receives rotational motion from the rotating unit 30 and performs linear motion. The rotating unit 30 is supported by two rolling bearings 13, 14 arranged separated in the center line direction thereof. In addition, the rolling bearing 13 that, out of the two rolling bearings 13, 14, is on one side of the first case 12 in the axial direction, is supported by the first case 12 in the axial direction and via a plate-shaped elastic member 42. The rolling bearing 14 on the other side of the first case 12 in the axial direction is in a state in which same is pressed in the axial direction by a pressing member 24.

Inventors:
SHIMIZU TATSUNORI (JP)
Application Number:
PCT/JP2017/032265
Publication Date:
March 22, 2018
Filing Date:
September 07, 2017
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02K5/173; F16H25/24; H02K7/06
Foreign References:
JP2016151332A2016-08-22
JP2003319607A2003-11-07
EP2891824A22015-07-08
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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