JPS593451U

JPS593451U - 2-action pressure switch

Info

Publication number: JPS593451U
Application number: JP9723782U
Authority: JP
Inventors: 久寿広田
Original assignee: 株式会社テージーケー
Priority date: 1982-06-30
Filing date: 1982-06-30
Publication date: 1984-01-10
Also published as: JPS642354Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すもので、第１．２゜３図は
それぞれ作動状態を示す断面図、第４図は第１可動接点
の斜視図、第５図は固定接点と第２可動接点の関係を示
した斜視図、第６図は各設定圧力の関係を示した説明図
、第７，８図は従来のものを示したもので、第７図は全
体の断面図、第８図は設定圧力の関係を示した説明図で
ある。２０は上部体、２３は下部体、２４はダイアフラム、３
３．３４は固定接点、３５はピストン、３６．３６．３
７は第１可動接点、３９は反転円板、４１はロッド、４
３．４７はスプリング、４８は第２可動接点。The drawings show an embodiment of the present invention. Figures 1, 2 and 3 are sectional views showing the operating states, Figure 4 is a perspective view of the first movable contact, and Figure 5 is a fixed contact and the second movable contact. FIG. 6 is an explanatory diagram showing the relationship between the set pressures; FIGS. 7 and 8 are conventional ones; FIG. 7 is an overall sectional view; FIG. The figure is an explanatory diagram showing the relationship between set pressures. 20 is an upper body, 23 is a lower body, 24 is a diaphragm, 3
3.34 is a fixed contact, 35 is a piston, 36.36.3
7 is a first movable contact, 39 is an inversion disk, 41 is a rod, 4
3. 47 is a spring, 48 is a second movable contact.

Claims

[Scope of utility model registration request]

A pressure chamber is provided between an upper body and a lower body by airtightly sandwiching a diaphragm, and the switch has a piston on the side opposite to the pressure chamber of the diaphragm that moves up and down by the pressure received through the diaphragm. An inversion disk having a second effective pressure receiving area smaller than the effective pressure receiving area of the piston is provided on the inside of the upper surface so as to be able to be turned upside down, and the piston is accommodated via a holder so as to be movable up and down with a spring. A pair of fixed contacts connected to the terminals that lock the holder and protrude from the lower body are fixed to the lower body, and the first electrical switching is performed by the pair of first movable contacts provided on the lower surface of the piston and the fixed contacts. A second movable contact and the first movable contact, which are housed in the holder by springing from below, form a second electric opening/closing part, and in a through hole provided at the center of the piston, A two-action pressure switch comprising a rod that directly interlocks the reversing disk and the second movable contact.