Title:
FORCE SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/163581
Kind Code:
A1
Abstract:
Provided is a force sensor which is capable of inhibiting infiltration of liquid and dust from a space between a main body and a movable body, and which is capable of improving reliability. A force sensor 10B according to an embodiment of the present invention has a main body 11 which is cylindrical. A cylindrical movable body 12 is capable of moving with respect to the main body, and has at least three circular openings provided to the circumference. A strain body 16 is fixed to the main body and the movable body, and is capable of deforming in accordance with the movement of the movable body. A strain sensor 16a is provided to the strain body. First stoppers 14 are provided inside each of the openings, and are provided with first side surfaces having a first external diameter that is smaller than the diameter of the openings. A sealing member 40 covers at least the openings and a movable portion between the main body and the movable body.
Inventors:
ENDO TAKAYUKI (JP)
Application Number:
PCT/JP2017/047121
Publication Date:
September 13, 2018
Filing Date:
December 27, 2017
Export Citation:
Assignee:
NIDEC COPAL ELECTRONICS CORP (JP)
International Classes:
G01L5/16; G01L1/26
Foreign References:
| US20130340537A1 | 2013-12-26 | |||
| JPS6469927A | 1989-03-15 | |||
| JPS61193344U | 1986-12-02 | |||
| JP2014119347A | 2014-06-30 | |||
| JP2010008343A | 2010-01-14 | |||
| JPH0643937B2 | 1994-06-08 |
Other References:
See also references of EP 3594648A4
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
Download PDF: