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Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/169855
Kind Code:
A1
Abstract:
Provided is an electric actuator 1 equipped with a motor A and a motion converting mechanism B for converting rotary motion from the motor A to linear motion and outputting the linear motion, the motion converting mechanism B being provided with a threaded shaft 33 disposed coaxially with the center of rotation of a rotor 24 of the motor A, and a nut member 32 rotatably fitted to the outer periphery of the threaded shaft 33, and the threaded shaft 33 moving linearly in the axial direction with the rotation of the nut member 32. The rotor 24 is provided with a rotor inner member 26 as a hollow rotary shaft having the nut member 32 disposed in the inner periphery thereof. Rotary motion from the rotor 24 is transmitted to the nut member 32 via an intermediate member Z disposed between the inner peripheral surface of the rotor inner member 26 and the outer peripheral surface 32b of the nut member 32.

Inventors:
MATSUTOU TAKUSHI (JP)
IKEDA YOSHINORI (JP)
NAITOU YUUKI (JP)
Application Number:
JP2017/010711
Publication Date:
October 05, 2017
Filing Date:
March 16, 2017
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (?5500003, JP)
International Classes:
F16H25/20; F16C19/16; F16C33/64; F16H25/22; F16H25/24; H02K7/06
Foreign References:
JP2015149799A2015-08-20
JP2003247576A2003-09-05
JP2005170064A2005-06-30
Other References:
See also references of EP 3438503A4
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (?5410059, JP)
Kunihiko Shiromura (?5410059, JP)
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