Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/169846
Kind Code:
A1
Abstract:
Provided is an electric actuator (1) equipped with a motor (A) and a motion converting mechanism (B), the motion converting mechanism (B) being provided with a ball screw shaft (33) and a ball screw nut (32) rotatably fitted to the outer periphery of the ball screw shaft (33) with balls (34) therebetween, and the ball screw shaft (33) moving linearly in the axial direction with the rotation of the ball screw nut (32). A compression coil spring (48) is disposed on the outer side of the ball screw shaft (33) in the radial direction, and an end of the compression coil spring (48) to one axial direction side and an end of the ball screw nut (32) to the other axial direction side are engaged together in the axial direction.

Inventors:
MATSUTOU TAKUSHI (JP)
IKEDA YOSHINORI (JP)
NAITOU YUUKI (JP)
Application Number:
JP2017/010656
Publication Date:
October 05, 2017
Filing Date:
March 16, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTN TOYO BEARING CO LTD (?5500003, JP)
International Classes:
H02K7/06; F16H25/20; F16H25/22; F16H25/24; H02K7/116; H02K11/215; H02K11/33
Foreign References:
JP2003329070A2003-11-19
JP2011002047A2011-01-06
JP2013130286A2013-07-04
JP2005170064A2005-06-30
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (Ehara Patent Office, 2-15 Bakurou-machi 4-chome, Chuo-ku, Osaka-sh, Osaka 59, 〒5410059, JP)
Download PDF: