US 12,436,614 B2
Contact pressure sensor, knit product having same, and method of manufacturing contact pressure sensor
Tetsuya Namikawa, Kyoto (JP); Shuichi Fukuhara, Kyoto (JP); Tatsuya Kosui, Wakayama (JP); and Takafumi Kamei, Wakayama (JP)
Assigned to Murata Machinery, Ltd., Kyoto (JP); and Shima Seiki Mfg., Ltd., Wakayama (JP)
Appl. No. 17/779,798
Filed by Murata Machinery, Ltd., Kyoto (JP); and SHIMA SEIKI MFG., LTD., Wakayama (JP)
PCT Filed Nov. 27, 2020, PCT No. PCT/JP2020/044331
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/107131, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2022/0413610 A1, Dec. 29, 2022
Int. Cl. G06F 3/01 (2006.01); D04B 1/28 (2006.01); G01L 1/22 (2006.01)
CPC G06F 3/014 (2013.01) [D04B 1/28 (2013.01); G01L 1/2287 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A contact pressure sensor that detects a pressing force applied to a pressed body by a pressing body through a sensor portion disposed between the pressing body and the pressed body,
wherein the sensor portion is formed of a knitting yarn including a carbon nanotube yarn, and
the sensor portion comprises:
a pressing body contact surface with which the pressing body comes into contact;
a pressed body contact surface with which the pressed body comes into contact;
knitting yarn intersecting portions formed between the pressing body contact surface and the pressed body contact surface; and
void portions formed between the pressing body contact surface and the pressed body contact surface, the void portions being spaces in which the knitting yarn is not disposed;
wherein a first end portion and a second end portion, which are both ends of the sensor portion in a course direction, each includes a terminal formed of the knitting yarn derived from a plurality of courses of the sensor portion.