US 11,788,338 B2
Pinch detection switch and pinch detection method
Katsuya Akimoto, Tokyo (JP); Shuichi Suzuki, Tokyo (JP); and Katsutoshi Nakatani, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Appl. No. 16/969,706
Filed by Hitachi Metals, Ltd., Tokyo (JP)
PCT Filed Jun. 26, 2018, PCT No. PCT/JP2018/024171
§ 371(c)(1), (2) Date Aug. 13, 2020,
PCT Pub. No. WO2019/159388, PCT Pub. Date Aug. 22, 2019.
Claims priority of application No. 2018-025422 (JP), filed on Feb. 15, 2018.
Prior Publication US 2021/0002941 A1, Jan. 7, 2021
Int. Cl. E05F 15/40 (2015.01); E05F 15/46 (2015.01); E05F 15/44 (2015.01)
CPC E05F 15/46 (2015.01) [E05F 15/443 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A pinch detection switch comprising one tubular pressure-sensitive detection member having a first hollow portion and a plurality of electrode wires spaced apart from one another by the first hollow portion, the plurality of electrode wires being formed in a spiral shape extending along a longitudinal direction of the pressure-sensitive detection member, and a cover member covering the pressure-sensitive detection member,
wherein, when the cover member is viewed in cross section, the cover member comprises a base portion, a second hollow portion, and a deformation portion provided on the base portion so as to cover the second hollow portion of the cover member,
the pressure-sensitive detection member is arranged in the deformation portion,
a receiving portion configured to receive the pressure-sensitive detection member is arranged on the base portion,
the receiving portion has at least two substantially planar receiving surfaces formed at positions facing the pressure-sensitive detection member, the at least two receiving surfaces being configured to receive the pressure-sensitive detection member, and
wherein, when the cover member is viewed in cross section, the receiving portion has a protruding shape protruding in a stepwise manner from the base portion toward the deformation portion, and
in the protruding shape, an upper surface and an inclined surface facing the pressure-sensitive detection member act as the two receiving surfaces.