Title:
PRESSURE SWITCH
Document Type and Number:
Japanese Patent JP2017054780
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure switch capable of suppressing cost by reducing the number of components in a pressure switch of a body ground structure using a metallic diaphragm.SOLUTION: A pressure switch 100 comprises: a conductive joint 111 including a duct 111a for supplying a pressure of an actuation medium; a diaphragm 200 which is displaced in response to the pressure of the actuation medium and has conductivity; a terminal 132 provided with a contact member fitting part 132a to fit a contact member which is brought into contact with the diaphragm 200, thereto when the diaphragm 200 is displaced to an atmospheric pressure side, and a signal transmission part 132b for transmitting an ON/OFF signal to an external circuit; and an insulative terminal block 131 for fixing the terminal 132. In the diaphragm 200, a bowl-shaped pressure reaction part 200a which is displaced in response to the pressure of the actuation medium is formed in a central part and a gear-shaped belleville spring part including a leaf spring 200b is formed in an outer peripheral part.SELECTED DRAWING: Figure 3
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Inventors:
KATSUKI GEN
MATSUYAMA KENICHI
HAMABE YOSHIHIRO
MATSUYAMA KENICHI
HAMABE YOSHIHIRO
Application Number:
JP2015179770A
Publication Date:
March 16, 2017
Filing Date:
September 11, 2015
Export Citation:
Assignee:
SAGINOMIYA SEISAKUSHO INC
International Classes:
H01H35/34; G01L9/00
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office