Title:
近接センサ
Document Type and Number:
Japanese Patent JP7439580
Kind Code:
B2
Abstract:
To provide a proximity sensor with improved hardness of a core.SOLUTION: A proximity sensor detects at least one of the presence/absence and the position of a metal body by using a magnetic field. The proximity sensor comprises: a core having a cylindrical part, a bottom part which closes one end of the cylindrical part, a first intermediate shaft part which is surrounded by the cylindrical part, and a second intermediate shaft part which is continuous with the first intermediate shaft part and the bottom part, with its diameter increasing from the first intermediate shaft part toward the bottom part; and a detection coil, for generating the magnetic field, which is wound around the first intermediate shaft part and the second intermediate shaft part inside the cylindrical part.SELECTED DRAWING: Figure 3
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Inventors:
Yusuke Nakayama
Ryota Hasegawa
Ryota Hasegawa
Application Number:
JP2020043413A
Publication Date:
February 28, 2024
Filing Date:
March 12, 2020
Export Citation:
Assignee:
Omron Corporation
International Classes:
H01H36/00; H01H11/00
Domestic Patent References:
| JP2001076598A | ||||
| JP2009048902A |
Foreign References:
| WO2006046358A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toyotaka Abe
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toyotaka Abe