JPS61206174U

JPS61206174U -

Info

Publication number: JPS61206174U
Application number: JP9113685U
Authority: JP
Priority date: 1985-06-17
Filing date: 1985-06-17
Publication date: 1986-12-26
Anticipated expiration: 2000-06-17
Also published as: JPH056460Y2

Description

[Brief explanation of the drawing]

第１図ないし第２図は本考案の一実施例を示す
図であつて、第１図はＡ系統からガスが供給され
ている状態の概略断面図、第２図はＢ系統からガ
スが供給されている状態の概略断面図、第３図な
いし第５図は中圧調整器を設けた従来の自動切換
装置で、ガス圧の差により供給系統が切換わる作
用を示した図である。７，８……シリンダ装置、９，１０……弁（バ
ルブ）、１３，１４……ケーシング、１５，１６
……筒状ピストン、１９，２０……内部ピストン
、２１，２２……バネ、２７，２８……調整ネジ
、２９，３０……ガス供給口、３１，３２……第
１ガス供給口、３３，３４……第２ガス供給口。 Figures 1 and 2 are diagrams showing one embodiment of the present invention, in which Figure 1 is a schematic cross-sectional view of a state in which gas is supplied from system A, and Figure 2 is a schematic cross-sectional view of a state in which gas is supplied from system B. 3 to 5 are schematic cross-sectional views of a conventional automatic switching device equipped with an intermediate pressure regulator, and are diagrams illustrating the effect of switching the supply system due to a difference in gas pressure. 7, 8... Cylinder device, 9, 10... Valve, 13, 14... Casing, 15, 16
... Cylindrical piston, 19, 20 ... Internal piston, 21, 22 ... Spring, 27, 28 ... Adjustment screw, 29, 30 ... Gas supply port, 31, 32 ... First gas supply port, 33 , 34...Second gas supply port.

補正昭６１．１．１４図面の簡単な説明を次のように補正する。明細書第１５頁第１行目、「概略断面図、」の
後に次分を追加する。「第３図は本考案の他の実施例を示す概略断面
図、」明細書第１５頁第１行目〜第２行目、「第３図
ないし第５図」を「第４図ないし第６図」に補正
する。Amendment January 14, 1981 The brief description of the drawing is amended as follows. In the first line of page 15 of the specification, the following is added after "Schematic sectional view." ``Figure 3 is a schematic sectional view showing another embodiment of the present invention.'' Page 15 of the specification, lines 1 to 2, ``Figures 3 to 5'' to ``Figures 4 to 5'' Corrected to Figure 6.

Claims

[Scope of utility model registration request]

It has two gas supply systems, and each of these supply systems is provided with a valve that opens and closes the supply system, and these valves are operated by the gas pressure of the supply system to open and close the valves. The automatic switching device is equipped with a pair of cylinder devices, the cylinder device being coaxial with a casing and a cylindrical piston provided in the casing so as to be slidable toward one end and the other end of the casing. an internal piston having a rod that is inserted into the casing and extends toward one end of the casing; a spring that biases the cylindrical piston toward the one end; and an adjustment screw that adjusts the biasing force of the spring; is provided with a gas supply port for sliding the cylindrical piston toward the other end of the casing, and the cylindrical piston is provided with a first gas supply port for sliding the internal piston toward the other end. and a second gas supply port slidable in the direction of the one end, and the first gas supply port of one cylinder device and the second gas supply port of the other cylinder device communicate with each other, and The second gas supply port of the cylinder device and the first gas supply port of the other cylinder device are in communication, and the valve is opened when the cylindrical piston or the internal piston slides toward the one end. An automatic switching device for a gas supply system, characterized in that it has a configuration in which: