DIAPHRAGM AND FLUID DEVICE

To provide a diaphragm which can inhibit a fluid from remaining between a diaphragm side taper surface and a body side taper surface, and to provide a fluid device.SOLUTION: A diaphragm 30 includes: a fixed part 32 fixed to a body part 10; and a flexible thin film part 33 integrally connected with t...

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Bibliographische Detailangaben
Hauptverfasser:	TEJIMA KAZUKIYO, NAKANO ATSUSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CYLINDERS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	To provide a diaphragm which can inhibit a fluid from remaining between a diaphragm side taper surface and a body side taper surface, and to provide a fluid device.SOLUTION: A diaphragm 30 includes: a fixed part 32 fixed to a body part 10; and a flexible thin film part 33 integrally connected with the fixed part 32. The fixed part 32 has: a cylindrical press-fitting part 34 press-fitted in a cylindrical seal groove 15 formed at the body part 10; and a diaphragm side taper surface 38 formed at its axis C side relative to the press-fitting part 34. In a state where the press-fitting part 34 is press-fitted in the seal groove 15, an inclination angle θ1 of the diaphragm side taper surface 38 relative to an axis C is smaller than an inclination angle θ2 of a body side taper surface 18 formed at the body part 10 relative to the axis C. An end part 38a of the diaphragm side taper surface 38 contacts with the body side taper surface 18.SELECTED DRAWING: Figure 2 【課題】ダイアフラム側テーパ面とボディ側テーパ面との間に流体が残存するのを抑制できるダイアフラム、及び流体機器を提供する。【解決手段】ダイアフラム３０は、ボディ部１０に対して固定される固定部３２と、固定部３２に一体に接続された可撓性を有する薄膜部３３とを備える。固定部３２は、ボディ部１０に形成された筒状のシール溝１５に圧入される筒状の圧入部３４と、圧入部３４よりもその軸心Ｃ側に形成されたダイアフラム側テーパ面３８と、を有する。圧入部３４がシール溝１５に圧入された状態で、ダイアフラム側テーパ面３８の軸心Ｃに対する傾斜角度θ１が、ボディ部１０に形成されたボディ側テーパ面１８の軸心Ｃに対する傾斜角度θ２よりも小さく、ダイアフラム側テーパ面３８の端部３８ａが、ボディ側テーパ面１８に当接する。【選択図】図２