Title:
LINEAR MOTION DEVICE
Document Type and Number:
Japanese Patent JP2021085467
Kind Code:
A
Abstract:
To provide a linear motion device equipped with a shaft and a nut, which has a function of suppressing the linear motion of the shaft to the nut.SOLUTION: A linear motion device 1 is equipped with a shaft 10 having a male screw portion MS, and a nut 20 having a female screw portion FS screwed with the male screw portion MS of the shaft 10. In a screwing portion of the male screw portion MS and the female screw portion FS, magnetic viscous fluid MRF is filled. Furthermore, the liner motion device 1 is equipped with an electric magnet 40 applying a magnetic field to the screwing portion between the shaft 10 and the nut 20.SELECTED DRAWING: Figure 8
Inventors:
NAGATA HIDEMICHI
YOSHIDA MASAMICHI
YOSHIDA MASAMICHI
Application Number:
JP2019215157A
Publication Date:
June 03, 2021
Filing Date:
November 28, 2019
Export Citation:
Assignee:
AISIN SEIKI
International Classes:
F16H25/20; F16D63/00; F16D65/16; F16F9/53; F16H25/24
Attorney, Agent or Firm:
Patent business corporation Prospec patent office