US 12,222,252 B2
Load sensor
Takashi Matsumoto, Osaka (JP); Hiroyuki Furuya, Osaka (JP); Yuta Moriura, Osaka (JP); and Susumu Uragami, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Apr. 25, 2022, as Appl. No. 17/728,245.
Application 17/728,245 is a continuation of application No. PCT/JP2020/040108, filed on Oct. 26, 2020.
Claims priority of application No. 2019-196686 (JP), filed on Oct. 29, 2019.
Prior Publication US 2022/0244112 A1, Aug. 4, 2022
Int. Cl. G01L 1/14 (2006.01); G01N 5/00 (2006.01)
CPC G01L 1/14 (2013.01) [G01L 1/146 (2013.01); G01N 5/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A load sensor comprising:
an element part in which capacitance changes in accordance with a load, wherein the element part includes an electrically-conductive elastic body that is electrically conductive and that forms one pole for the capacitance;
a copper wire having a first end shaped into a loop that is electrically in contact with a surface of the electrically-conductive elastic body, and a second end adapted to be connected to a circuit for detecting capacitance; and
a fixation tool configured to press and fix the copper wire to the surface of the electrically-conductive elastic body, while the copper wire is allowed to be movable on the surface of the electrically-conductive elastic body in response to elastic deformation of the electrically-conductive elastic body.