| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure switch capable of easily obtaining arbitrary operation pressure and eliminating a pressure adjusting process for every switch. SOLUTION: This pressure switch 1 is constituted of a body 10 having an opening 12 for communicating internal space to external space and a surrounding rise part 14, a switch case 20 formed to have space for housing a pressure switch assembly 60 and caulked to the body 10, a diaphragm 30 for dividing internal space made of the body 10 and the switch case 20 into operating pressure space 13 and reference pressure space 26, and an operation rod guide member 50, an operation rod 55 and the switch 60 arranged in the reference space 26. In addition, the pressure switch 1 has a drawn projection part directed the reference pressure space 26, and a flat part surrounding the projection part, and the projection part is reversed in a direction for operation at preset pressure.
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