JP2004069144A

JP2004069144A - Pressure regulator for gas fitting, oscillating film member and diaphragm

Info

Publication number: JP2004069144A
Application number: JP2002227802A
Authority: JP
Inventors: Masahiro Tanaka; 田中　雅浩
Original assignee: TONII SEIKI SEISAKUSHO KK
Current assignee: TONII SEIKI SEISAKUSHO KK
Priority date: 2002-08-05
Filing date: 2002-08-05
Publication date: 2004-03-04
Anticipated expiration: 2022-08-05
Also published as: KR100562198B1; HK1061572A1; CN1475685A; CN1311176C; KR20040014275A; JP3715264B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a diaphragm and an oscillating film member easily assemblable in the production process and preventing gas leakage, without cost increase and metal fatigue, and also to provide a pressure regulator for gas fittings having such oscillating film member. <P>SOLUTION: The diaphragm 2 according to the present invention comprises: a disk-shaped main body 5; an upward protrusion 6 extending upward from the center of an upper surface of the main body; and a downward protrusion 7 extending downward from the center of a lower surface of the main body and having a insertion hole, in the direction orthogonal to the extending direction, for inserting an end of a controller controlling gas introduced into a regulating chamber thereinto. These parts are integrally formed from a resilient material. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は小型ガス容器を使用するガス器具用の圧力調整器に関する。
【０００２】
【従来の技術】
着脱式の小型ガス容器を使用するガス器具では、ガス器具に装着された小型ガス容器から供給されたガスは、ガス器具の圧力調整器（ガバナー或いは減圧器ともいう）により圧力が調整された後、コック部を介し連結管を通ってバーナー部に送られる。
【０００３】
圧力調整器は、図６のように亜鉛ダイカスト製の圧力調整器本体２０と、カバー５４とからなり、圧力調整器本体２０は小型ガス容器３０のノズル部３１を受容する接続部４０と、ガスの圧力を調整する調整室５０と、ガスの流量を調整するコック部６０と、ガス排出口７０とを有する。
【０００４】
接続部４０には、接続部４０に挿入された小型ガス容器３０のノズル部３１を押し込んで開弁させてガスを噴出させると共に、小型ガス容器３０内のガス圧が異常に上昇して高圧のガスが噴出するような場合にはガスを遮断する役目を有する逆止弁が配置されている。
【０００５】
小型ガス容器３０から接続部４０に供給されたガスは、逆止弁の周囲の隙間を通って、次の調整室５０に送られる。
【０００６】
図７のように、調整室５０の上方は圧力調整手段５１により閉塞され、圧力調整手段５１は、上下動する振動膜部材５２と、該振動膜部材５２を下方に押圧しているバネよりなる戻し部材５３を有し、戻し部材５３は、バネ受けを兼ねたカバー５４により覆われている。カバー５４は圧力調整器本体２０にネジ止めされているが、振動膜部材５２の周縁部（ダイヤフラム８１の周縁部）はカバー５４と圧力調整器本体２０との間に挟まれて圧力調整器本体２０に固定されている。
【０００７】
図８のように、接続部４０と調整室５０との間には小孔４５が設けられ、調整室５０内の小孔４５の出口付近には開閉子５５が設けられている。開閉子５５は支点５６で枢軸支され、開閉子５５の一方端５５ａは振動膜部材５２の中心を縦方向に貫通している調整桿８３の下端に設けられた挿入孔５７内に挿入され、一方、開閉子５５の他方端５５ｂは小孔４５の出口４５ａを塞ぐように配置されている。小孔４５の出口４５ａと接する開閉子５５の個所にはシール部材５８が設けられている。
【０００８】
小型ガス容器３０を接続部４０に装着すると、接続部４０の逆止弁の外方端が小型ガス容器３０のノズル部３１を押し込んで開弁させガスを噴出させる。噴出したガスは、逆止弁の周囲の隙間を通って、接続部４０と調整室５０との間にある小孔４５に入り、開閉子５５の他方端５５ｂを押し上げて調整室５０に入る。
【０００９】
調整室５０内にガスが入り調整室５０内のガス圧が高まると、振動膜部材５２が戻し部材５３の押圧力に対抗して上昇し、それと共に振動膜部材５２の中心を縦方向に貫通している調整桿８３の下端に設けられた挿入孔５７内に挿入されている開閉子５５の一方端５５ａが上昇する結果、開閉子５５の他方端５５ｂは下降して小孔４５の出口４５ａを塞いで、調整室５０へのガスの流入を阻止する。
【００１０】
調整室５０内のガスが、コック部６０の操作によりガス排出口７０を介して排出されて調整室５０内の圧力が下がると、振動膜部材５２が下降し再び調整室５０内にガスが導入される。
【００１１】
【発明が解決しようとする課題】
調整室５０の圧力調整手段５１を形成している振動膜部材５２は、図９のように円盤状のゴム製のダイヤフラム８１と、アルミニウム等の金属からなるダイヤフラム受８２と、亜鉛ダイカスト製の調整桿８３と、スプリングワッシャー８４と、ナット８５とからなる。
【００１２】
ダイヤフラム８１の上にダイヤフラム受８２が重なるように配置され、ダイヤフラム８１及びダイヤフラム受８２の中心にそれぞれ穿たれた穴に、下方から調整桿８３が挿入される。
【００１３】
調整桿８３は、上述した開閉子５５の一方端が挿入される挿入孔５７を有する下部８３Ｂと、ネジが形成された上部８３Ａと、下部８３Ｂと上部８３Ａとの間にあってダイヤフラム８１及びダイヤフラム受８２の中心にそれぞれ穿たれた穴より大きな径の円形のストッパーを兼ねる中間部８３Ｃとからなる。
【００１４】
調整桿８３の上部８３Ａを、調整桿８３の中間部８３Ｃの上面がダイヤフラム８１の下面と当接するまで、ダイヤフラム８１及びダイヤフラム受８２の中心にそれぞれ穿たれた穴に挿入し、ダイヤフラム受８２より上方に出た調整桿８３の上部８３Ａの部分にスプリングワッシャー８４を装着し、ナット８５を螺合して締め付けることにより、ダイヤフラム８１に調整桿８３が取りつけられる。
【００１５】
しかしながらこのような振動膜部材５２は、第一にガス漏れが生じやすいという欠点がある。即ち、調整桿８３の上部８３Ａをダイヤフラム８１の中心に穿たれた穴に挿入するため、挿入しやすいように調整桿８３の上部８３Ａの外径より、ダイヤフラム８１の穴の径が若干大きくなされている為、調整桿８３の上部８３Ａの外周面と、ダイヤフラム８１の中心の穴の内周面との間に隙間ができ気密にできない。
【００１６】
また、ダイヤフラム８１と調整桿８３との間の気密性を高めるべくナット８５を締め付けていくとダイヤフラム８１に、中心の穴を中心とする回転方向の力が加わり、ゴム製のダイヤフラム８１によれが生じ、ガス漏れがしやすくなる。さらにナット８５の締め付けが強すぎると、ダイヤフラム８１が切れてガス漏れの原因となる。
【００１７】
第二に、従来の振動膜部材５２では、組み立てが面倒であるという欠点がある。即ち、従来の振動膜部材５２は、ダイヤフラム８１と、ダイヤフラム受８２と、調整桿８３と、スプリングワッシャー８４と、ナット８５からなり、その組み立てにはダイヤフラム８１の上にダイヤフラム受８２を重ねる工程と、ダイヤフラム８１の中心の穴とダイヤフラム受８２の中心の穴とに調整桿８３の上部８３Ａを挿入する工程と、調整桿８３の上部８３Ａにスプリングワッシャー８４を装着する工程と、調整桿８３の上部８３Ａにナット８５を螺合して締め付ける工程の少なくとも４工程を必要とする。
【００１８】
さらにナット８５を螺合して締め付ける工程では、まずナット８５を調整桿８３の上部８３Ａのネジに適性にネジ込まれるように仮締めし、その後、増す締め（本締め）するという２段階の締め付け工程が行われるというように、工程数が増えてしまう。
【００１９】
第三に、従来の振動膜部材５２では、ダイヤフラム８１と、ダイヤフラム受８２と、調整桿８３と、スプリングワッシャー８４と、ナット８５の５つの部品からなるというように部品点数が多く、コストが高くなるという欠点がある。
【００２０】
第四に、従来の振動膜部材５２では、調整桿８３は形状乃至構造が複雑なため、亜鉛ダイカスト製のものが使用されているが、このような亜鉛ダイカスト製の部品は、製造段階で「す」が入ったりする為、製造管理が難しく、また、金属疲労の原因になりやすいという欠点がある。
【００２１】
本発明はかかる欠点を克服した、ガス漏れがなく、製造の際の組み立てが容易で、コストも高くならず、金属疲労等が生じない、ダイヤフラム、振動膜部材及びこのような振動膜部材を有した、ガス器具の圧力調整器を提供することを目的としている。
【００２２】
【課題を解決するための手段】
本発明のダイヤフラムは、円盤状の本体部と、該本体部の上面の中心から上方に伸びる上方突出部と、本体部の下面の中心から下方に伸延しその伸延方向と交差する方向に、調整室に導入されるガスを制御する制御部材の一方端が挿入される挿入孔を有する下方突出部とを有し、これら各部が弾性材料により一体に成形されていることを特徴とする。
【００２３】
ダイヤフラムはまた、上方突出部の根元付近に、ダイヤフラム上に重畳配置されるダイヤフラム受の中心の穴と嵌合するくびれ部を有し、該くびれ部の上方に止め具と係合する係合部を有するようになされ、また下方突出部材が、本体部に連接して設けられた拡大部と、該拡大部から下方に伸延している伸延部とを有し、伸延部にガスを制御する制御部材の一方端が挿入される挿入孔が設けられている。
【００２４】
さらに本発明の振動膜部材は、振動膜部材が、円盤状の本体部と、該本体部の上面の中心から上方に伸びる上方突出部と、本体部の下面の中心から下方に伸延しその伸延方向と交差する方向に、調整室に導入されるガスを制御する制御部材の一方端が挿入される挿入孔を有する下方突出部とが弾性材料により一体に成形されてなるダイヤフラムと、中心に上記ダイヤフラムの上方突出部が貫通する穴を有するダイヤフラム上に重畳配置されるダイヤフラム受と、ダイヤフラム受の中心の穴を貫通して突出するダイヤフラムの上方突出部に嵌合してダイヤフラム上に重畳配置されたダイヤフラム受を固定する止め具とを具備する。
【００２５】
また本発明のガス器具用の圧力調整器は、円盤状の本体部と、該本体部の上面の中心から上方に伸びる上方突出部と、本体部の下面の中心から下方に伸延しその伸延方向と交差する方向に、調整室に導入されるガスを制御する制御部材の一方端が挿入される挿入孔を有する下方突出部とが弾性材料により一体に成形されてなるダイヤフラムと、中心に上記ダイヤフラムの上方突出部が貫通する穴を有するダイヤフラム上に重畳配置されるダイヤフラム受と、ダイヤフラム受の中心の穴を貫通して突出するダイヤフラムの上方突出部に嵌合してダイヤフラム上に重畳配置されたダイヤフラム受を固定する止め具とを具備する振動膜部材を有するように構成されている。
【００２６】
【発明の実施の形態】
図１において、本発明の振動膜部材１は、円盤状のダイヤフラム２と、ダイヤフラム２の上に重畳配置される円盤状のダイヤフラム受３と、ダイヤフラム２上に重畳配置されたダイヤフラム受３をダイヤフラム２に固定する為の止め具４とを具備する。
【００２７】
図２〜４のように、ダイヤフラム２は、円盤状の本体部５と、該本体部５の上面の中心から上方に伸びる丸棒状の上方突出部６と、本体部５の下面の中心から下方に伸びる下方突出部７とを有し、これら各部は一体に形成されている。
【００２８】
ダイヤフラム２は、ゴムや合成樹脂等の弾性材料からなり、ゴムとしては例えばＮＢＲ（アクリロニトリルーブタジエンゴム）が使用できる。
【００２９】
本体部５の大きさは様々であるが、例えば直径が１３ｍｍから１５０ｍｍのものが使用される。また厚さは例えば０．１ｍｍから１ｍｍのものが使用される。
【００３０】
本体部５の上面の上方突出部６の周囲には、ダイヤフラム受３を重畳した際にダイヤフラム受３を位置決め固定すべく、ダイヤフラム受３の形状に相応する大きさの凹部８が設けられている。
【００３１】
また、本体部５の下面の周縁には、本体部５の周縁が調整室９（図５）と該調整室９にかぶせられるカバー１０との間に挟まれて固定される際に、固定しやすいように調整室９の周囲の溝１１と嵌合する下向きの突条１２が円周状に設けられている。１０ａはバネよりなる戻し部材である。
【００３２】
図２のように上方突出部６の根元付近には、くびれ部１３が形成され、ここにダイヤフラム受３の中心の穴１９が嵌合して位置決め固定される。またこのくびれ部１３の上方に止め具４と係合する係合部１４が設けられ、ここに止め具４が嵌合し、本体部５上に重畳配置されたダイヤフラム受３を固定する。
【００３３】
本体部５の下面の中心から下方に伸延している下方突出部７は、補強の為に本体部５に連接して設けられた横断面が円形の拡大部１５と、該拡大部から下方に伸延している横断面が角形の伸延部１６とを有している。伸延部１６には、その伸延方向と交差する方向に挿入孔１７が設けられ、この挿入孔１７に調整室９に導入されるガスを制御する制御部材である開閉子１８の一方端が挿入される。
【００３４】
ダイヤフラム受３は、金属製で、例えばアルミニウム、メッキされた鉄板、亜鉛鋼板などからなる。ダイヤフラム受３の中心にはダイヤフラム２の上方突出部６が挿入される穴１９が設けられている。
【００３５】
止め具４は、上方突出部６の係合部１４にワンタッチで嵌合するだけで、ダイヤフラム２上に重畳配置されたダイヤフラム受３を固定できるようなものが好ましく、例えばＣＳ型の止め輪や、Ｅリングなどが使用される。
【００３６】
本発明の振動膜部材１の組み立ては、ダイヤフラム２の上方突出部６をダイヤフラム受３の中心の穴１９に挿入して、ダイヤフラム受３をダイヤフラム２の上面に重畳し、上方突出部６の係合部１４に止め具４を嵌合してダイヤフラム受３を固定するだけで完了する。
【００３７】
【発明の効果】
本発明のダイヤフラム、振動膜部材及び圧力調整器では、ダイヤフラムを構成する本体部、上方突出部及び下方突出部が弾性材料で一体に成形されているので、ガス漏れが生じる心配が全くない。
【００３８】
また、本発明の振動膜部材及び圧力調整器では、振動膜部材の組み立てに際し、ダイヤフラムの上方突出部をダイヤフラム受の中心の穴に挿入して、ダイヤフラム受をダイヤフラムの上面に重畳する工程と、上方突出部に止め具を嵌合してダイヤフラム受を固定する工程の２工程だけで完了し、ネジの仮締めや本締めも不要であるので、製造組み立て作業が短時間で簡単に済み効率的である。
【００３９】
さらにダイヤフラムの上方突出部の根元付近にくびれ部が設けられているので、上方突出部にダイヤフラム受の中心の穴を挿入した場合に、位置決め及び固定が確実且つ容易にでき、ダイヤフラム受を重畳する工程での作業効率が上がる。
【００４０】
また下方突出部に、本体部に連接して拡大部が設けられて補強され、該拡大部から下方に伸延している伸延部にガスを制御する制御部材の一方端が挿入される挿入孔が設けられているので、下方突出部は制御部材の頻繁に行われる上下方向の運動に対しても十分耐えることができ耐久性が向上する。
【００４１】
さらに本発明の振動膜部材及び圧力調整器では、振動膜部材を構成する部品点数が少なくコストの削減が図れる。
【００４２】
また、本発明の振動膜部材及び圧力調整器では、振動膜部材に亜鉛ダイカスト製の部品などが使用されていないため、金属疲労の原因となる部品がなく、長期間の使用に耐えるという利点がある。
【図面の簡単な説明】
【図１】本発明の振動膜部材の断面図。
【図２】ダイヤフラムの断面図。
【図３】ダイヤフラムを斜上方から見た斜視図。
【図４】ダイヤフラムを斜下方から見た斜視図。
【図５】本発明の圧力調整器の分解図。
【図６】圧力調整器の一例を示す図。
【図７】従来の振動膜部材を有する圧力調整器の分解図。
【図８】従来の圧力調整器の断面図。
【図９】従来の振動膜部材の断面図。
【符号の説明】
１　振動膜部材
２　ダイヤフラム
３　ダイヤフラム受
４　止め具
５　本体部
６　上方突出部
７　下方突出部
８　凹部
９　調整室
１０　カバー
１１　溝
１２　突条
１３　くびれ部
１４　係合部
１５　拡大部
１６　伸延部
１７　挿入孔
１８　制御部材（開閉子）
１９　穴[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pressure regulator for a gas appliance using a small gas container.
[0002]
[Prior art]
In a gas appliance using a detachable small gas container, the gas supplied from the small gas container attached to the gas appliance is subjected to pressure adjustment by a pressure regulator (also referred to as governor or decompressor) of the gas appliance. Then, it is sent to the burner part through the connecting pipe through the cock part.
[0003]
As shown in FIG. 6, the pressure regulator comprises a pressure regulator main body 20 made of zinc die-casting and a cover 54. The pressure regulator main body 20 has a connecting portion 40 for receiving the nozzle portion 31 of the small gas container 30, It has an adjustment chamber 50 for adjusting the pressure of the gas, a cock section 60 for adjusting the flow rate of gas, and a gas outlet 70.
[0004]
In the connecting portion 40, the nozzle portion 31 of the small gas container 30 inserted into the connecting portion 40 is pushed in to open the valve to eject the gas, and the gas pressure in the small gas container 30 rises abnormally to increase the high pressure. In the case where gas is blown out, a check valve is provided which serves to shut off the gas.
[0005]
The gas supplied from the small gas container 30 to the connection part 40 is sent to the next adjustment chamber 50 through a gap around the check valve.
[0006]
As shown in FIG. 7, the upper part of the adjustment chamber 50 is closed by a pressure adjusting unit 51, and the pressure adjusting unit 51 includes a vibrating membrane member 52 that moves up and down and a spring that presses the vibrating membrane member 52 downward. It has a return member 53, and the return member 53 is covered with a cover 54 also serving as a spring receiver. The cover 54 is screwed to the pressure regulator main body 20, but the peripheral edge of the diaphragm member 52 (the peripheral edge of the diaphragm 81) is sandwiched between the cover 54 and the pressure regulator main body 20. 20.
[0007]
As shown in FIG. 8, a small hole 45 is provided between the connection portion 40 and the adjustment chamber 50, and a switch 55 is provided near the outlet of the small hole 45 in the adjustment chamber 50. The switching element 55 is pivotally supported at a fulcrum 56, and one end 55a of the switching element 55 is inserted into an insertion hole 57 provided at the lower end of an adjustment rod 83 that vertically passes through the center of the diaphragm member 52, On the other hand, the other end 55b of the opening / closing element 55 is arranged so as to close the outlet 45a of the small hole 45. A seal member 58 is provided at a portion of the opening / closing element 55 that contacts the outlet 45a of the small hole 45.
[0008]
When the small gas container 30 is mounted on the connection portion 40, the outer end of the check valve of the connection portion 40 pushes the nozzle portion 31 of the small gas container 30 to open the valve and eject gas. The jetted gas passes through the gap around the check valve, enters the small hole 45 between the connection portion 40 and the adjustment chamber 50, pushes up the other end 55 b of the switch 55, and enters the adjustment chamber 50.
[0009]
When the gas enters the adjustment chamber 50 and the gas pressure in the adjustment chamber 50 increases, the diaphragm member 52 rises against the pressing force of the return member 53 and simultaneously penetrates the center of the diaphragm member 52 in the vertical direction. As a result, the one end 55a of the switch 55 inserted into the insertion hole 57 provided at the lower end of the adjusting rod 83 ascending rises, so that the other end 55b of the switch 55 descends and the outlet 45a of the small hole 45 moves. To prevent gas from flowing into the adjustment chamber 50.
[0010]
When the gas in the adjustment chamber 50 is exhausted through the gas outlet 70 by operating the cock section 60 and the pressure in the adjustment chamber 50 decreases, the diaphragm member 52 descends and the gas is introduced into the adjustment chamber 50 again. Is done.
[0011]
[Problems to be solved by the invention]
As shown in FIG. 9, the diaphragm member 52 forming the pressure adjusting means 51 of the adjusting chamber 50 includes a disk-shaped rubber diaphragm 81, a diaphragm receiver 82 made of metal such as aluminum, and an adjustment made of zinc die-cast. It comprises a rod 83, a spring washer 84, and a nut 85.
[0012]
The diaphragm receiver 82 is arranged so as to overlap the diaphragm 81, and the adjustment rod 83 is inserted from below into holes formed in the centers of the diaphragm 81 and the diaphragm receiver 82, respectively.
[0013]
The adjustment rod 83 includes a lower part 83B having an insertion hole 57 into which one end of the above-described opening / closing element 55 is inserted, an upper part 83A formed with a screw, and a diaphragm 81 and a diaphragm receiver 82 between the lower part 83B and the upper part 83A. And an intermediate portion 83C also serving as a circular stopper having a diameter larger than the hole formed in each of the holes.
[0014]
The upper portion 83A of the adjusting rod 83 is inserted into holes respectively formed in the centers of the diaphragm 81 and the diaphragm receiver 82 until the upper surface of the intermediate portion 83C of the adjusting rod 83 comes into contact with the lower surface of the diaphragm 81. The adjustment rod 83 is attached to the diaphragm 81 by attaching a spring washer 84 to the upper part 83A of the adjustment rod 83 and screwing and tightening the nut 85.
[0015]
However, such a vibrating membrane member 52 has a drawback that gas leakage easily occurs first. That is, since the upper part 83A of the adjusting rod 83 is inserted into the hole formed in the center of the diaphragm 81, the diameter of the hole of the diaphragm 81 is made slightly larger than the outer diameter of the upper part 83A of the adjusting rod 83 so as to facilitate insertion. Therefore, a gap is formed between the outer peripheral surface of the upper portion 83A of the adjustment rod 83 and the inner peripheral surface of the center hole of the diaphragm 81, so that the airtightness cannot be achieved.
[0016]
When the nut 85 is tightened to increase the airtightness between the diaphragm 81 and the adjusting rod 83, a force is applied to the diaphragm 81 in a rotational direction about the center hole, and the rubber diaphragm 81 is distorted. Gas leakage is likely to occur. Further, if the nut 85 is excessively tightened, the diaphragm 81 breaks and causes gas leakage.
[0017]
Second, the conventional diaphragm member 52 has a disadvantage that the assembly is troublesome. That is, the conventional vibration membrane member 52 includes a diaphragm 81, a diaphragm receiver 82, an adjusting rod 83, a spring washer 84, and a nut 85, and assembling the same includes a step of stacking the diaphragm receiver 82 on the diaphragm 81. Inserting the upper part 83A of the adjusting rod 83 into the center hole of the diaphragm 81 and the central hole of the diaphragm receiver 82, attaching the spring washer 84 to the upper part 83A of the adjusting rod 83, At least four steps of screwing and tightening the nut 85 to 83A are required.
[0018]
Further, in the step of screwing and tightening the nut 85, first, the nut 85 is temporarily tightened so as to be appropriately screwed into the screw of the upper portion 83A of the adjustment rod 83, and then is further tightened (finally tightened) in two steps. The number of steps is increased as if the steps were performed.
[0019]
Thirdly, the conventional diaphragm member 52 has a large number of components such as a diaphragm 81, a diaphragm receiver 82, an adjusting rod 83, a spring washer 84, and a nut 85. Disadvantage.
[0020]
Fourth, in the conventional diaphragm member 52, the adjustment rod 83 is made of zinc die-casting because of its complicated shape or structure. However, there is a drawback that manufacturing control is difficult and metal fatigue is likely to occur.
[0021]
The present invention has a diaphragm, a vibrating membrane member and such a vibrating membrane member which overcomes such disadvantages, has no gas leakage, is easy to assemble during manufacturing, does not increase cost, and does not cause metal fatigue or the like. It is an object of the present invention to provide a pressure regulator for gas appliances.
[0022]
[Means for Solving the Problems]
The diaphragm of the present invention has a disk-shaped main body, an upper protruding portion extending upward from the center of the upper surface of the main body, and extending downward from the center of the lower surface of the main body and adjusted in a direction intersecting the extending direction. A lower protrusion having an insertion hole into which one end of the control member for controlling the gas introduced into the chamber is inserted, and these parts are integrally formed of an elastic material.
[0023]
The diaphragm also has, near the base of the upwardly projecting portion, a constricted portion that fits into a center hole of the diaphragm receiver that is superimposed on the diaphragm, and an engaging portion that engages with a stopper above the constricted portion. Wherein the downwardly projecting member has an enlarged portion provided in connection with the main body portion and an extended portion extending downward from the enlarged portion, and controls the gas to the extended portion. An insertion hole into which one end of the member is inserted is provided.
[0024]
Further, in the vibration membrane member of the present invention, the vibration membrane member has a disk-shaped main body, an upper protruding portion extending upward from the center of the upper surface of the main body, and extending downward from the center of the lower surface of the main body. In the direction intersecting with the direction, a lower protruding portion having an insertion hole into which one end of a control member for controlling gas introduced into the adjustment chamber is inserted, and a diaphragm formed integrally with an elastic material, A diaphragm receiver overlapped on a diaphragm having a hole through which an upper protrusion of the diaphragm penetrates, and an upper protrusion of the diaphragm protruding through a center hole of the diaphragm receiver and fitted on the diaphragm so as to be overlapped and disposed on the diaphragm. And a stopper for fixing the diaphragm receiver.
[0025]
The pressure regulator for a gas appliance according to the present invention further includes a disk-shaped main body, an upper protruding portion extending upward from the center of the upper surface of the main body, and a downward extending direction extending from the center of the lower surface of the main body. A diaphragm having a lower projection having an insertion hole into which one end of a control member for controlling gas introduced into the adjustment chamber is inserted in a direction intersecting with the diaphragm, and a diaphragm formed integrally with an elastic material; The upper projecting portion of the diaphragm is overlapped on the diaphragm having the through hole, and the upper projecting portion of the diaphragm projecting through the center hole of the diaphragm receiving portion is fitted on the upper portion of the diaphragm. The diaphragm member is provided with a stopper for fixing the diaphragm receiver.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
In FIG. 1, a diaphragm member 1 according to the present invention includes a disk-shaped diaphragm 2, a disk-shaped diaphragm receiver 3 superimposed on the diaphragm 2, and a diaphragm receiver 3 superposed and disposed on the diaphragm 2. And a stopper 4 for fixing to the fixing member 2.
[0027]
As shown in FIGS. 2 to 4, the diaphragm 2 includes a disk-shaped main body 5, a round bar-shaped upper protruding part 6 extending upward from the center of the upper surface of the main body 5, and a lower part from the center of the lower surface of the main body 5. And each of these parts is integrally formed.
[0028]
The diaphragm 2 is made of an elastic material such as rubber or a synthetic resin. As the rubber, for example, NBR (acrylonitrile butadiene rubber) can be used.
[0029]
Although the size of the main body 5 varies, for example, a body having a diameter of 13 mm to 150 mm is used. For example, a thickness of 0.1 mm to 1 mm is used.
[0030]
A recess 8 having a size corresponding to the shape of the diaphragm receiver 3 is provided around the upper protruding part 6 on the upper surface of the main body 5 so as to position and fix the diaphragm receiver 3 when the diaphragm receiver 3 is superimposed. .
[0031]
When the peripheral edge of the main body 5 is fixed between the adjustment chamber 9 (FIG. 5) and the cover 10 over the adjustment chamber 9, the peripheral edge of the lower surface of the main body 5 is fixed. A downwardly protruding ridge 12 that fits into a groove 11 around the adjustment chamber 9 is provided in a circumferential shape so as to be easy. 10a is a return member made of a spring.
[0032]
As shown in FIG. 2, a constricted portion 13 is formed near the base of the upwardly protruding portion 6, and a central hole 19 of the diaphragm receiver 3 is fitted and fixed in position. Further, an engaging portion 14 is provided above the constricted portion 13 so as to engage with the stopper 4. The stopper 4 is fitted into the engaging portion 14 to fix the diaphragm receiver 3 superposed on the main body 5.
[0033]
The downward protruding portion 7 extending downward from the center of the lower surface of the main body portion 5 includes an enlarged portion 15 having a circular cross section provided in connection with the main body portion 5 for reinforcement, and a downward extending portion from the enlarged portion. The extending cross section has a rectangular extension 16. The extension portion 16 is provided with an insertion hole 17 in a direction intersecting the direction of extension, into which one end of a switch 18 which is a control member for controlling gas introduced into the adjustment chamber 9 is inserted. You.
[0034]
The diaphragm receiver 3 is made of metal and is made of, for example, aluminum, a plated iron plate, a zinc steel plate, or the like. At the center of the diaphragm receiver 3, a hole 19 into which the upper protruding portion 6 of the diaphragm 2 is inserted is provided.
[0035]
The stopper 4 is preferably one that can fix the diaphragm receiver 3 superimposed on the diaphragm 2 by merely fitting the engaging portion 14 of the upper protruding portion 6 with one touch. For example, a CS-type retaining ring or the like can be used. , E-rings and the like are used.
[0036]
To assemble the diaphragm member 1 of the present invention, the upper projecting portion 6 of the diaphragm 2 is inserted into the center hole 19 of the diaphragm receiver 3 so that the diaphragm receiver 3 is superimposed on the upper surface of the diaphragm 2 and the upper projecting portion 6 is engaged. This is completed only by fitting the stopper 4 to the joint portion 14 and fixing the diaphragm receiver 3.
[0037]
【The invention's effect】
In the diaphragm, the diaphragm member, and the pressure regulator of the present invention, since the main body, the upper protruding portion, and the lower protruding portion constituting the diaphragm are integrally formed of an elastic material, there is no fear of gas leakage.
[0038]
Further, in the vibration membrane member and the pressure regulator of the present invention, when assembling the vibration membrane member, inserting the upper protrusion of the diaphragm into the center hole of the diaphragm receiver, and superimposing the diaphragm receiver on the upper surface of the diaphragm, It is completed in only two steps of fitting the stopper to the upper protruding part and fixing the diaphragm holder, and it is not necessary to temporarily tighten or fully tighten the screws, so manufacturing and assembling work is simple and easy in a short time It is.
[0039]
Further, since a constricted portion is provided near the base of the upper protruding portion of the diaphragm, when the center hole of the diaphragm receiver is inserted into the upper protruding portion, positioning and fixing can be performed reliably and easily, and the diaphragm receiver is superposed. Work efficiency in the process increases.
[0040]
In addition, the lower protruding portion is provided with an enlarged portion connected to the main body portion and reinforced, and an insertion hole into which one end of a control member for controlling gas is inserted into an extended portion extending downward from the enlarged portion is provided. Since it is provided, the downward projecting portion can sufficiently withstand the frequent vertical movement of the control member, and the durability is improved.
[0041]
Furthermore, in the vibrating membrane member and the pressure regulator of the present invention, the number of components constituting the vibrating membrane member is small, and the cost can be reduced.
[0042]
Moreover, in the diaphragm member and the pressure regulator of the present invention, since components made of zinc die-casting are not used for the diaphragm member, there is no component that causes metal fatigue, and there is an advantage that the diaphragm can be used for a long time. is there.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a diaphragm member according to the present invention.
FIG. 2 is a sectional view of a diaphragm.
FIG. 3 is a perspective view of the diaphragm as viewed obliquely from above.
FIG. 4 is a perspective view of the diaphragm viewed from obliquely below.
FIG. 5 is an exploded view of the pressure regulator of the present invention.
FIG. 6 is a diagram showing an example of a pressure regulator.
FIG. 7 is an exploded view of a conventional pressure regulator having a vibrating membrane member.
FIG. 8 is a sectional view of a conventional pressure regulator.
FIG. 9 is a cross-sectional view of a conventional diaphragm member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vibration membrane member 2 Diaphragm 3 Diaphragm receiver 4 Stopper 5 Main part 6 Upper protruding part 7 Lower protruding part 8 Recess 9 Adjustment chamber 10 Cover 11 Groove 12 Protrusion 13 Constriction part 14 Engaging part 15 Enlarged part 16 Extension part 17 Insertion Hole 18 control member (switch)
19 holes

Claims

In a diaphragm used for a diaphragm member arranged in an adjustment chamber of a pressure regulator for a gas appliance, a diaphragm has a disk-shaped main body, and an upper protruding portion extending upward from a center of an upper surface of the main body, A lower projecting portion having an insertion hole into which one end of a control member for controlling gas introduced into the adjustment chamber is inserted in a direction extending downward from the center of the lower surface of the main body and intersecting the direction of extension. A diaphragm characterized in that these parts are integrally formed of an elastic material.

Claims: A constricted portion near the base of the upper protruding portion for fitting into a center hole of a diaphragm receiver overlapped on a diaphragm, and an engaging portion for engaging a stopper above the constricted portion. 2. The diaphragm according to 1.

The downwardly projecting member has an enlarged portion provided in connection with the main body portion and an extended portion extending downward from the enlarged portion, and one end of a control member for controlling gas is inserted into the extended portion. 3. The diaphragm according to claim 1, wherein an insertion hole is provided.

In a diaphragm member arranged in an adjustment chamber of a pressure regulator for a gas appliance, the diaphragm member includes a disk-shaped main body, an upper protruding portion extending upward from a center of an upper surface of the main body, and a main body. A lower projection extending downward from the center of the lower surface and having an insertion hole into which one end of a control member for controlling gas introduced into the adjustment chamber is inserted in a direction intersecting with the extension direction is integrally formed of an elastic material. A molded diaphragm, a diaphragm receiver overlapped on a diaphragm having a hole through which the upper protrusion of the diaphragm penetrates at the center, and an upper protrusion of the diaphragm that protrudes through the center hole of the diaphragm receiver. A vibrating membrane member, comprising: a stopper that fits and fixes a diaphragm receiver superimposed on the diaphragm.

A disk-shaped main body, an upper protruding portion extending upward from the center of the upper surface of the main body, and a gas introduced into the adjustment chamber in a direction extending downward from the center of the lower surface of the main body and intersecting with the extending direction. A lower projection having an insertion hole into which one end of the control member is inserted is formed integrally with a diaphragm formed of an elastic material, and a diaphragm having a hole in the center through which the upper projection of the diaphragm penetrates is provided. A diaphragm having a superimposed diaphragm receiver and a stopper that fits into an upper protruding portion of the diaphragm that protrudes through a center hole of the diaphragm receiver and fixes the superimposed diaphragm receiver on the diaphragm. A pressure regulator for a gas appliance having a member.