| 摘要 |
PROBLEM TO BE SOLVED: To be capable of enhancing pressure resistance without increasing production costs and avoiding size increase of a pressure switch associated with pressure resistance reinforcement.SOLUTION: In a diaphragm assembly 20 of the pressure switch, an outer peripheral edge of a diaphragm group 20B is sandwiched by an upper plate 20A and a lower plate 20C. A portion closer to a center side than the outer peripheral edge of the diaphragm group 20B is held by an O ring 24. |
