FORCE SENSOR - NIDEC COPAL ELECTRONICS CORP

Title:

FORCE SENSOR

Document Type and Number:

WIPO Patent Application WO/2018/163579

Kind Code:

A1

Abstract:

Provided is a force sensor which is capable of inhibiting breakage of a strain body, and improving reliability, even if the rigidity of the strain body differs in the axial direction. A force sensor 10 according to an embodiment of the present application 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 13 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 outer circumferential surfaces having a first external diameter that is smaller than the diameter of the openings. A cylindrical second stopper 24 is provided a first distance away from a first inner circumferential surface of the main body, and is provided with a second outer circumferential surface having a second external diameter that is smaller than the diameter of the first inner circumferential surface.

More Like This:

JP2000249609

CAPACITANCE-TYPE SENSOR

Inventors:

ENDO TAKAYUKI (JP)

Application Number:

PCT/JP2017/047119

Publication Date:

September 13, 2018

Filing Date:

December 27, 2017

Export Citation:

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Assignee:

NIDEC COPAL ELECTRONICS CORP (JP)

International Classes:

G01L5/16; G01L1/26

Foreign References:

JPH01189534A	1989-07-28
JP2010008343A	2010-01-14
JP2012520451A	2012-09-06
JP2005515421A	2005-05-26
JPS61223625A	1986-10-04
CN105651446A	2016-06-08
JP2010008343A	2010-01-14
JPH0643937B2	1994-06-08

Other References: