US 11,852,548 B2
Switch
Takashi Kawamura, Tokyo (JP); Yoichi Yasunaga, Tokyo (JP); Takeshi Higaki, Tokyo (JP); Toshihiko Terashita, Tokyo (JP); Shintaro Ogura, Tokyo (JP); Shigenori Inamoto, Tokyo (JP); Yuki Takahashi, Tokyo (JP); Kotaro Eguchi, Nagano (JP); Kui Li, Nagano (JP); and Satoshi Sato, Nagano (JP)
Assigned to MITSUMI ELECTRIC CO., LTD., Tokyo (JP)
Appl. No. 17/047,512
Filed by Takashi Kawamura, Tokyo (JP); Yoichi Yasunaga, Tokyo (JP); Takeshi Higaki, Tokyo (JP); Toshihiko Terashita, Tokyo (JP); Shintaro Ogura, Tokyo (JP); Shigenori Inamoto, Tokyo (JP); Yuki Takahashi, Tokyo (JP); Kotaro Eguchi, Nagano (JP); Kui Li, Nagano (JP); and Satoshi Sato, Nagano (JP)
PCT Filed Apr. 17, 2019, PCT No. PCT/JP2019/016525
§ 371(c)(1), (2) Date Oct. 14, 2020,
PCT Pub. No. WO2019/208367, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 2018-085637 (JP), filed on Apr. 26, 2018.
Prior Publication US 2021/0156753 A1, May 27, 2021
Int. Cl. G01L 1/00 (2006.01); G01L 1/22 (2006.01); G05G 1/02 (2006.01); G05G 5/05 (2006.01); H01H 13/14 (2006.01)
CPC G01L 1/22 (2013.01) [G05G 1/02 (2013.01); G05G 5/05 (2013.01); G05G 2505/00 (2013.01); H01H 13/14 (2013.01); H01H 2215/004 (2013.01); H01H 2239/052 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A switch comprising:
a base including a recessed portion on one surface of the base;
a click spring having a dome shape, the click spring being provided at the recessed portion such that the bottom of the recessed portion is contacted at a dome-shaped opening side of the click spring;
a cover provided to cover the recessed portion and to house the click spring at the recessed portion; and
a strain detecting element attached to another surface of the base,
wherein the strain detecting element is configured to
detect strain of the base, the strain occurring in accordance with a depression amount of the click spring that is depressed, and
output an amount of the detected strain, the amount of the detected strain increasing in accordance with an increase in the depression amount of the click spring, upon occurrence of a condition in which the amount of the detected strain exceeds a threshold.