JP3729474B2

JP3729474B2 - Gas quantity control device for gas combustor

Info

Publication number: JP3729474B2
Application number: JP34677496A
Authority: JP
Inventors: 義弘森
Original assignee: パロマ工業株式会社
Priority date: 1996-12-10
Filing date: 1996-12-10
Publication date: 2005-12-21
Anticipated expiration: 2016-12-10
Also published as: JPH10169992A

Description

【０００１】
【発明の属する技術分野】
この発明は、ガステーブル等のガス燃焼器のガス量制御装置に関し、詳しくは点滅装置と火力調節装置とを連動させてバーナの火力を変化させる連動装置を有するガス量制御装置に関する。
【０００２】
【従来の技術】
ガステーブル等のガス燃焼器のガス量制御装置において、たとえば、操作釦のプッシュ操作でメイン弁、マグネット弁等のガス弁を開弁する点滅装置と、火力調節レバーを操作してニードル弁を進退させることによりガス量を調節してバーナの火力をコントロールする火力調節装置とを上記操作釦の操作に連動する連動レバーを介して一定の条件下にあるときのみ連動させて、一定の条件下にあるとき、たとえば、バーナの火力をコントロールする火力調節レバーが火力「弱」又は「強」の状態にあるときに点火操作されたときは連動レバーで火力調節レバーを少なくとも火力「中」の位置まで戻した後、火力「中」のガス量で点火することにより、点火不良又は点火時にあふれた炎が着衣の袖等に引火する等の危険をなくし安全を期するようにしている。
【０００３】
そこで、従来の点滅装置と火力調節装置とを連動する連動装置の連動レバーは、たとえば、図８及び図９に示されているように、１枚の板体を略クランク状に折曲げて形成されているにすぎないから、この連動レバー２′は弁本体１４′に一体形成された軸受け３′に片持ち状に軸支され、かつ、この軸支部には連動レバー２′の抜脱を防止するための止め座、Ｃリング等の止め部材６′及び座金７′等が用いられている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の技術では、連動レバーが１枚の板体で折曲げ形成され、しかも、片持ち状に軸支されているにすぎないから、操作釦のプッシュ操作により下端の押片１１′による押力を上端の押板片１３′による押動力として火力調節レバー１′に伝達して揺動する連動レバー２′の作動時に連動レバー２′にこじれが生ずるためにその作動にバラつきがあって安定性がなく、また、止め座、Ｃリング等による止め部材６′及び座金７′等が構成部品として必要なため、その組みつけ作業に多くの時間を要し作業能率の低下が著しいばかりでなく、止め部材６′、座金７′等の構成部品の増大と相まってコスト的にも相当高くなってしまうという問題点があった。
【０００５】
この発明は、上記課題を解決し、作動の安定化と組みつけ作業の能率化を図り、併せて、コスト的にも安価なガス燃焼器のガス量制御装置の提供を目的としている。
【０００６】
【課題を解決するための手段】
上記課題を解決するこの発明の第１のガス燃焼器のガス量制御装置は、
操作釦などのプッシュ操作でガス弁を開弁する点滅手段と、火力調節レバーを操作してバーナの火力をコントロールする火力調節手段と、上記操作釦などの操作に連動する連動レバーを揺動させ上記火力調節レバーを所定の火力位置に移動させる連動手段とを備えたガス燃焼器のガス量制御装置において、
上記連動レバーは、軸受部の両側に備えた支軸に揺動自在に軸支され、上記操作釦などのプッシュ操作による揺動角度範囲から外れた角度で上記軸受部から脱着できる両持ち支持構造としたことを特徴とする。
上記構成を有するこの発明の第１のガス燃焼器のガス量制御装置は、連動レバーが軸受部の両側に備えた支軸に余分な部品を用いることなく両持ち支持構造のもとに取付け軸支される。この結果、作動の安定化は勿論のこと、強度的にも強く、また、構成部品も少ないので、コスト的にも安くなる。
【０００７】
上記課題を解決するこの発明の第２のガス燃焼器のガス量制御装置は、上記第１のガス燃焼器のガス量制御装置の連動レバーが、
断面コ字状の両側平行２面の一方の側壁に軸受部の一方に設けられた丸軸に軸支できる軸孔を備え、他方の側壁には軸受部の他方に設けられた角軸に軸支できる丸孔とその径より小さく上記角軸が挿通できるスリット溝とからなる軸孔を備えた連動レバーを設け、上記連動レバーの上記揺動角度範囲から外れた角度において軸受部の軸に連動レバーの軸孔を嵌めつけ、連動レバーを上記揺動角度範囲内に変位したとき軸孔と軸とが外れないように軸支されることを特徴とする。
上記構成を有するこの発明の第２のガス燃焼器のガス量制御装置は、連動レバーの上記揺動角度範囲から外れた角度において連動レバーの一方の軸孔を軸受部の一方の丸軸に嵌めつけ、また、他方の軸孔には軸受部の他方の角軸をスリット溝を介して嵌めつけた後、連動レバーを上記揺動角度範囲内に変位すれば、軸孔と軸とが外れないように軸支される。この結果、連動レバーを軸受部にそのまま嵌めつけるだけで両持ち支持の組みつけが行いうる。
【０００８】
上記課題を解決するこの発明の第３のガス燃焼器のガス量制御装置は、上記第１及び第２のガス燃焼器のガス量制御装置において、
軸受部の一方の丸軸に連動レバーの一方の軸孔を軸線方向から嵌めつけ、軸受部の他方の角軸には連動レバーの他方の軸孔を交叉方向からスリット溝を介して嵌めつけ、連動レバーを揺動角度範囲内に変位して軸受部に連動レバーを取付け、かつ、上記連動レバーが揺動角度範囲から外れた角度へ戻らないように規制したことを特徴とする。
上記構成を有するこの発明の第３のガス燃焼器のガス量制御装置は、連動レバーの一方の軸孔を軸受部の一方の丸軸に軸線方向から嵌めつけた後、他方の軸孔は軸受部の他方の角軸に交叉方向からスリット溝を介して嵌めつけ、連動レバーを揺動角度範囲内に変位すれば、連動レバーは軸受部に両持ち支持のもとに軸支される。そして、連動レバーを揺動角度範囲から外れた角度に戻らないように周辺部品の組立て等により規制すれば、軸孔と軸とは外れることのないように組みつけられる。この結果、軸受部に対する連動レバーの取付け作業は簡易、かつ、確実に行いうる。
【０００９】
上記課題を解決するこの発明の第４のガス燃焼器のガス量制御装置は、
軸受部の肩部に斜状の面とり部を設けたことを特徴とする。
上記構成を有するこの発明の第４のガス燃焼器のガス量制御装置は、軸受部の肩部が斜状に面とりされているから、軸受部に対する断面コ字状の連動レバーの嵌めつけが円滑に行え、しかも、軸支後のガタつきも減少する。この結果、軸受部に対する連動レバーの取付け作業は容易となり、作動の安定化も図りうる。
【００１０】
【発明の実施の形態】
この発明のガス燃焼器のガス量制御装置では、たとえば、実施例に対応する図面に示されているように、操作釦のプッシュ操作でメイン弁、マグネット弁等のガス弁を開弁する点滅装置Ａと、火力調節レバー１を操作してニードル弁を進退させることによりガス量を調節してバーナの火力をコントロールする火力調節装置Ｂとを上記操作釦の操作に連動する連動レバー２を介して一定の条件下にあるときのみ連動させて上記火力調節レバーを所定の火力位置に移動させる構造のガス燃焼器のガス量制御装置において、
【００１１】
上記連動レバー２は、軸受部３の両側に備えられた支軸５、８に揺動自在に軸支され、上記操作釦などのプッシュ操作による揺動角度範囲から外れた角度で上記軸受部３から連動レバー２が脱着できる両持ち支持構造のもとに取付け軸支できるようにしている。すなわち、断面コ字状の両側平行２面の一方の側壁４に軸受部３の一方の丸軸５に連動レバー２の揺動角度範囲から外れた角度において軸線方向から嵌めつけて軸支できる軸孔６を備え、他方の側壁７には両側を面とりして形成された軸受部３の他方の角軸８に交叉方向から嵌めつけて軸支できる丸孔９ａとその径より小さく上記角軸８が挿通できるスリット溝９ｂとからなる軸孔９を備えた構造としている。そして、組みつけ後は周辺部品の組立て等により連動レバー２が揺動角度範囲から外れた角度へは戻らないように規制している。
【００１２】
上記連動レバー２にはその下端部に操作釦と連動する作動杆１０で押動されるの押片１１を備え、上端部の一側には、上記火力調節レバー１に一体形成された押動片１２を押動する押板片１３を備えて、たとえば、火力調節レバー１が火力「弱」又は「強」の位置にあるとき操作釦を押して点火操作すると、操作釦と連動する作動杆１０で押片１１を押して連動レバー２を図示反時計方向へ回転し上端部の押板片１３で火力調節レバー１の押動片１２を押動して火力調節レバー１を火力「中」の位置へ移動させ火力「中」のガス量で点火するようになしている。
【００１３】
以上この発明の実施の形態の一例について説明したが、この発明はこうした実施の形態に何ら限定されず、この発明の要旨を逸脱しない範囲において様々な形態で実施しうること勿論である。
【００１４】
以上説明したこの発明の構成、作用及び実施の形態を一層明確にするために、この発明のガス燃焼器のガス量制御装置を具体的に示した実施例について以下に図面を参照して説明する。
【００１５】
【実施例】
図１〜図７は一実施例としてのこの発明のガス燃焼器のガス量制御装置を示したものであって、Ａは点滅装置で、操作釦（図示せず）のプッシュ操作でメイン弁、マグネット弁等のガス弁を開弁してバーナへガスの供給を行いバーナを燃焼する。すなわち、点火時は操作釦を所定のストロークだけ押すと、メイン弁、マグネット弁が開き同時にスイッチＳがＯＮされてイグナイタが作動しバーナに着火する。そして、熱電対が炎を感知するとマグネット弁は開放保持される。操作釦の押圧を解くと操作釦は一定のストロークだけ後退してロックされ、メイン弁、マグネット弁は開状態に保持され燃焼状態となる。
また、消火時は操作釦を再度押すとロックが外れ操作釦は元位置に戻り、メイン弁は閉じバーナは消火する。そこで、熱電対の起電力もなくなりマグネット弁も閉じるようになっている。
【００１６】
Ｂは火力調節装置で、火力調節レバー１を操作してニードル弁を進退させることによりガス量を調節してバーナの火力をコントロールする。すなわち、弁本体１４に装備されているニードル弁（図示せず）の弁軸１５に固定された作動ピン１６を溝に係合してニードル弁を回転させる係合片１７を先端に有し、基端にはガス量を火力「強」から火力「弱」へ絞るときにガス量が急激に絞られることによるバーナの消火等を防ぐための安全装置Ｃを備えており、略中間の一側に後述する連動レバーにより火力調節レバー１を移動させるための押動片１２を備えている。
【００１７】
また、上記火力調節レバー１は、上記作動ピン１６をスライド可能に傾斜溝に係合し火力調節レバー１の回転操作でニードル弁を進退移動させるガイド片１８を有し、上記弁本体１４に取付け固定される取付け台板１９に枢支部２０で回転可能に枢支され、火力調節レバー１を回動操作することによりニードル弁が進退してバーナへのガス量が調節されバーナの火力が無段階にコントロールできるようになっている。
【００１８】
火力調節レバー１の基端に備えられている上記安全装置Ｃは、火力調節レバー１の基端部に枢支された操作レバー２１の先端係止片２２がトーションバネ２３により取付け台板１９に設けられた基端係止段部２４に係止するように付勢されていて、操作レバー２１をそのままの状態で火力「強」から火力「弱」へ移動させてもその途中（たとえば、略火力「中」の位置）で取付け台板１９の係止段部２４に火力調節レバー１側の係止片２２が係止されてその移動が一旦阻止され、その後、操作レバー２１をトーションバネ２３に抗して上方へ持ち上げると係止段部２４から係止片２２が外れ火力「弱」の位置への移動ができるようになっている。
【００１９】
また、火力調節レバー１と取付け台板１９との接合部には、取付け台板１９の接合部の両側に穿った係合支持溝２５、２６に火力調節レバー１の接合部の両側に突設した係合支持片２７、２８をスライド可能に嵌めつけて取付け台板１９に対し火力調節レバー１がその使用回動範囲において支持される支持手段を備えている。そして、取付け台板１９に一体形成されている阻止片２９に火力調節レバー１に一体形成された引掛け片３０が引掛って火力調節レバー１の使用回動範囲を規制することによりこの使用回動範囲においては上記係合支持溝２５、２６と係合支持片２７、２８との係合が保たれるようにしている。
【００２０】
２は連動装置Ｄの連動レバーで、たとえば、火力調節レバー１が火力「弱」又は「強」の状態で点火操作されたときは、操作釦の操作に連動する連動レバー２で火力調節レバー１を少なくとも火力「中」の位置まで移動し火力「中」程度のガス量で安全に点火出来るようにするためのもので、断面コ字状の両側平行２面の一方の側壁４に軸受部３の一方に設けられた丸軸５に連動レバー２の揺動角度範囲から外れた角度において軸線方向から嵌めつけて軸支できる軸孔６を備え、他方の側壁７には軸受部３の他方に設けられた角軸８に交叉方向から嵌めつけて軸支できる丸孔９ａとこの丸孔９ａの径より小さく上記角軸８が挿入脱出できるスリット溝９ｂとからなる軸孔９を備えている。なお、上記角軸８は丸軸の両側を面とりして形成されている。
【００２１】
そして、上記連動レバー２の下端部に操作釦と連動する作動杆１０で押動されるの押片１１を備え、上端部の一側には、上記火力調節レバー１に一体形成された押動片１２を押動する押板片１３を備えている。
【００２２】
上記構成において、上記連動レバー２を軸受部３に嵌めつけ軸支するときは、一方の側壁４に穿った軸孔６を軸受部３の一方の丸軸５に連動レバー２の上記揺動角度範囲から外れた角度において軸線方向ａから傾けて嵌めつけ（図６の鎖線の状態から実線の状態参照）、その後、他方の側壁７に穿った軸孔９を軸受部３の他方の角軸８に交叉方向ｂからスリット溝９ｂを介して嵌めつけ（図６の実線の状態から図７の状態参照）、上記連動レバー２を上記揺動角度範囲内に回転変位させると（図５の矢印ｃ参照）、連動レバー２は軸受部３に両持ち支持のもとに抜脱することのないよう軸支される（図５の実線の状態参照）。
【００２３】
その後、連動レバー２をその周辺部品３３の組立て時に接触させるか（図１参照）又は連動レバー２の一部を変形させて連動レバー２が上記揺動角度範囲から外れた角度へ戻らないようにする。また、図６及び図７に示されているように、軸受部３の両側の肩部の反対側を斜状に面とり３１、３２すると、軸受部３に対する断面コ字状の連動レバー２の上記嵌めつけがその幅寸法を広くしなくても円滑に行え、しかも、軸支後のガタつきも減少できる。さらに、図示した実施例は火力調節レバー１が火力「弱」の状態で点火操作される場合を示しているが、「強」の状態で点火操作される場合も逆の構造とすれば同様の動作が得られ、その他のガス量制御にも容易に実施できること勿論である。
【００２４】
【発明の効果】
この発明のガス燃焼器のガス量制御装置は、以上説明したような形態で実施され、以下に記載される効果を奏する。
【００２５】
この発明の第１のガス燃焼器のガス量制御装置は、連動レバーが軸受部の両側に備えた支軸に余分な部品を用いることなく両持ち支持構造のもとに取付け軸支できるから、作動にバラつきがなくなるため、作動の安定化が図りうるとともに、組み立て作業も嵌めて回すだけという簡単なものであるから、作業能率は向上し、均一な製品の量産が可能で、しかも、薄い板材で作ることができ、また、構成部品も少ないので、コスト的にも安くなり、また、強度的にも強く耐久性がある。
【００２６】
この発明の第２のガス燃焼器のガス量制御装置は、連動レバーの揺動角度範囲から外れた角度において連動レバーの一方の軸孔を軸受部の一方の丸軸に嵌めつけ、また、他方の軸孔には軸受部の他方の角軸を嵌めつけた後、連動レバーを揺動角度範囲内へ変位すれば、これらは外れることのないように軸支されるから、連動レバーを軸受部に嵌めつけるだけで両持ち支持の組みつけが行いうる。
【００２７】
この発明の第３のガス燃焼器のガス量制御装置は、連動レバーの一方の軸孔を軸受部の一方の丸軸に軸線方向から嵌めつけた後、他方の軸孔は軸受部の他方の角軸に交叉方向からスリット溝を介して嵌めつければ、連動レバーは軸受部に両持ち支持のもとに軸支されるから、軸受部に対する連動レバーの取付け作業は簡易、かつ、確実に行いうる。
【００２８】
この発明の第４のガス燃焼器のガス量制御装置は、軸受部の肩部に斜状の面とり部を設けたから、軸受部に対する連動レバーの嵌めつけが連動レバーの幅寸法を広くしなくても円滑に行え、しかも、軸支後のガタつきも減少する。したがって、軸受部に対する連動レバーの取付け作業は容易となり、作動も安定する。
【図面の簡単な説明】
【図１】この発明のガス燃焼器のガス量制御装置の一実施例を示した全体側面図である。
【図２】同平面図である。
【図３】連動レバー部分だけの正面図である。
【図４】連動レバー部分だけの斜視図である。
【図５】軸受部に対する連動レバーの嵌めつけ状態を示した要部だけの側面図である。
【図６】軸受部に対する連動レバーの嵌めつけ状態を示した要部だけの一部切断平面図である。
【図７】軸受部に対する連動レバーの嵌めつけ状態を示した要部だけの一部切断平面図である。
【図８】従来のガス燃焼器のガス量制御装置の一例を示した側面図である。
【図９】その要部だけの正面図である。
【符号の説明】
１…火力調節レバー、２…連動レバー、３…軸受部、４…連動レバーの一方の側壁、５…軸受部の一方の丸軸、６…一方の側壁に穿った軸孔、７…連動レバーの他方の側壁、８…軸受部の他方の角軸、９…他方の側壁に穿った軸孔。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas amount control device for a gas combustor such as a gas table, and more particularly to a gas amount control device having an interlocking device that changes the heating power of a burner by interlocking a flashing device and a thermal power adjusting device.
[0002]
[Prior art]
In a gas amount control device for a gas combustor such as a gas table, for example, a flashing device that opens a gas valve such as a main valve or a magnet valve by pushing an operation button, and a needle valve is moved forward and backward by operating a heating power adjustment lever. By adjusting the gas amount and controlling the thermal power of the burner, the thermal power control device is linked only under certain conditions via the interlocking lever that is interlocked with the operation of the operation button, and under certain conditions. In some cases, for example, when the ignition control lever that controls the burner's thermal power is in the "low" or "strong" state, the interlock lever will move the thermal adjustment lever to at least the "medium" position. After returning, ignite with a medium amount of thermal power to eliminate the risk of ignition failure or the flame overflowing at the time of ignition, etc. It has to.
[0003]
Therefore, the interlocking lever of the interlocking device that interlocks the conventional flashing device and the thermal power control device is formed, for example, by bending one plate body into a substantially crank shape as shown in FIGS. Therefore, the interlocking lever 2 'is pivotally supported in a cantilever manner on a bearing 3' formed integrally with the valve body 14 ', and the interlocking lever 2' is removed from the pivotal support. A stop seat for preventing, a stop member 6 'such as a C-ring, a washer 7' and the like are used.
[0004]
[Problems to be solved by the invention]
However, in the above prior art, the interlocking lever is bent and formed by a single plate, and is only pivotally supported in a cantilever shape. Since the interlocking lever 2 'is actuated when the swinging lever 2' is oscillated by transmitting the pressing force due to the swaying force to the heating power adjusting lever 1 'as a pressing force by the pressing plate piece 13' at the upper end, the operation varies. In addition, there is a lack of stability, and a stopper member 6 'and a washer 7' using a stopper seat, C-ring and the like are necessary as components, so that a lot of time is required for the assembling work and the work efficiency is remarkably lowered. In addition, there is a problem that the cost is considerably increased in combination with an increase in the number of components such as the stopper member 6 'and the washer 7'.
[0005]
An object of the present invention is to solve the above-mentioned problems, to stabilize the operation and to improve the efficiency of assembly work, and to provide a gas amount control device for a gas combustor that is inexpensive in terms of cost.
[0006]
[Means for Solving the Problems]
A gas amount control device for a first gas combustor according to the present invention that solves the above-described problems is as follows.
The flashing means that opens the gas valve by push operation of the operation button, the thermal power adjustment means that controls the thermal power of the burner by operating the thermal power adjustment lever, and the interlocking lever that interlocks with the operation of the operation button etc. are swung. In the gas amount control device of the gas combustor, the interlocking means for moving the thermal power adjustment lever to a predetermined thermal power position,
The interlocking lever is pivotally supported on a support shaft provided on both sides of the bearing portion, and is a double-sided support structure that can be detached from the bearing portion at an angle that is out of a swing angle range by a push operation of the operation button or the like. It is characterized by that.
A gas amount control device for a first gas combustor according to the present invention having the above-described structure is provided with an attachment shaft based on a double-support structure without using extra parts for the support shafts provided with interlocking levers on both sides of the bearing portion. Be supported. As a result, not only the operation is stabilized, but also the strength is strong and the number of components is small, so that the cost is low.
[0007]
A gas amount control device for a second gas combustor according to the present invention that solves the above-described problems is characterized in that the interlock lever of the gas amount control device for the first gas combustor is
A shaft hole that can be pivotally supported by a round shaft provided on one side of the bearing portion is provided on one side wall of two parallel parallel surfaces with a U-shaped cross section, and an axis is provided on the other side wall of the bearing portion. An interlocking lever is provided with a shaft hole consisting of a round hole that can be supported and a slit groove that is smaller than its diameter and into which the angular shaft can be inserted, and is interlocked with the shaft of the bearing section at an angle that is out of the swing angle range of the interlocking lever. The shaft hole of the lever is fitted, and the shaft hole is supported so that the shaft does not come off when the interlocking lever is displaced within the swing angle range.
In the gas amount control device for a second gas combustor of the present invention having the above-described configuration, one shaft hole of the interlocking lever is fitted to one round shaft of the bearing portion at an angle outside the swing angle range of the interlocking lever. In addition, if the other angular shaft of the bearing portion is fitted to the other shaft hole through the slit groove, and the interlocking lever is displaced within the swing angle range, the shaft hole and the shaft cannot be detached. So that it is pivotally supported. As a result, the dual support can be assembled simply by fitting the interlocking lever to the bearing portion as it is.
[0008]
A gas amount control device for a third gas combustor of the present invention that solves the above-described problems is the gas amount control device for the first and second gas combustors,
Fit one shaft hole of the interlocking lever from the axial direction to one round shaft of the bearing part, and fit the other shaft hole of the interlocking lever from the cross direction through the slit groove to the other angular axis of the bearing part, The interlocking lever is displaced within the swing angle range, the interlock lever is attached to the bearing portion, and the interlock lever is restricted so as not to return to an angle outside the swing angle range.
In the gas amount control device for a third gas combustor of the present invention having the above-described configuration, after fitting one shaft hole of the interlocking lever to one round shaft of the bearing portion from the axial direction, the other shaft hole is a bearing. When the interlocking lever is displaced from the crossing direction to the other angular axis of the portion through the slit groove and the interlocking lever is displaced within the swing angle range, the interlocking lever is pivotally supported by the bearing portion under both-end support. Then, if the interlocking lever is regulated by assembling peripheral components so as not to return to an angle outside the swing angle range, the shaft hole and the shaft are assembled so as not to be detached. As a result, the attaching operation of the interlocking lever to the bearing portion can be performed easily and reliably.
[0009]
A gas amount control device for a fourth gas combustor according to the present invention for solving the above-mentioned problems is as follows.
An oblique chamfered portion is provided on the shoulder portion of the bearing portion.
In the gas amount control device of the fourth gas combustor of the present invention having the above configuration, since the shoulder portion of the bearing portion is chamfered obliquely, the interlocking lever having a U-shaped cross section is fitted to the bearing portion. It can be performed smoothly and the backlash after the shaft support is reduced. As a result, it is easy to attach the interlocking lever to the bearing portion, and the operation can be stabilized.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In the gas amount control device for a gas combustor according to the present invention, for example, as shown in the drawings corresponding to the embodiments, a flashing device that opens a gas valve such as a main valve or a magnet valve by pushing an operation button. A and a thermal power control device B that controls the thermal power of the burner by adjusting the gas amount by operating the thermal power control lever 1 to move the needle valve forward and backward, via an interlocking lever 2 that is linked to the operation of the operation button. In a gas amount control device for a gas combustor having a structure in which the thermal power adjusting lever is moved to a predetermined thermal power position in conjunction with each other only under certain conditions,
[0011]
The interlocking lever 2 is pivotally supported by support shafts 5 and 8 provided on both sides of the bearing portion 3, and the bearing portion 3 is at an angle out of a swinging angle range by a push operation of the operation button or the like. Thus, the mounting lever can be supported under a double-sided support structure to which the interlocking lever 2 can be attached and detached. That is, a shaft that can be supported by being fitted from the axial direction at one angle 4 outside the swinging angle range of the interlocking lever 2 to one round shaft 5 of the bearing portion 3 on one side wall 4 of two parallel surfaces on both sides having a U-shaped cross section. A hole 9 is provided, and the other side wall 7 is chamfered on both sides. The round hole 9a can be supported by being fitted to the other angular axis 8 of the bearing portion 3 from the cross direction and the angular axis smaller than the diameter. 8 is provided with a shaft hole 9 including a slit groove 9b through which 8 can be inserted. After assembly, the interlocking lever 2 is restricted so as not to return to an angle outside the swing angle range by assembling peripheral components.
[0012]
The interlocking lever 2 is provided with a pressing piece 11 that is pushed by an operating rod 10 that is interlocked with an operation button at the lower end thereof, and a pushing movement that is integrally formed with the heating power adjusting lever 1 on one side of the upper end. For example, when the ignition force is operated by pressing the operation button when the heating power adjustment lever 1 is in the position of the heating power “weak” or “strong”, the operating rod 10 interlocked with the operation button is provided. The push lever 11 is pressed to rotate the interlocking lever 2 counterclockwise in the drawing, and the push plate piece 13 at the upper end pushes the push piece 12 of the thermal power adjustment lever 1 to move the thermal power adjustment lever 1 to the position of the thermal power “medium”. To ignite with a gas amount of "medium" firepower.
[0013]
Although an example of the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it is needless to say that the present invention can be implemented in various forms without departing from the gist of the present invention.
[0014]
In order to further clarify the configuration, operation, and embodiment of the present invention described above, an embodiment specifically showing a gas amount control device for a gas combustor of the present invention will be described below with reference to the drawings. .
[0015]
【Example】
1 to 7 show a gas amount control device for a gas combustor according to the present invention as an embodiment, wherein A is a flashing device, and a main valve is operated by a push operation of an operation button (not shown). A gas valve such as a magnet valve is opened to supply gas to the burner and burn the burner. That is, when the operation button is pushed for a predetermined stroke during ignition, the main valve and the magnet valve are opened, and at the same time, the switch S is turned on to operate the igniter and ignite the burner. When the thermocouple detects a flame, the magnet valve is held open. When the operation button is released, the operation button is retracted and locked by a fixed stroke, and the main valve and the magnet valve are held open and become in a combustion state.
When the operation button is pressed again during fire extinguishing, the lock is released, the operation button returns to the original position, the main valve is closed, and the burner is extinguished. Therefore, the electromotive force of the thermocouple disappears and the magnet valve is also closed.
[0016]
B is a thermal power control device, which controls the thermal power of the burner by adjusting the gas amount by operating the thermal power control lever 1 and moving the needle valve back and forth. That is, it has an engaging piece 17 at the tip for rotating the needle valve by engaging the operating pin 16 fixed to the valve shaft 15 of the needle valve (not shown) provided in the valve body 14 with the groove, The proximal end is equipped with a safety device C for preventing the burner from being extinguished when the gas amount is squeezed from a high power to a weak power. Are provided with a pushing piece 12 for moving the heating power adjusting lever 1 by an interlocking lever described later.
[0017]
The heating power adjusting lever 1 has a guide piece 18 that slidably engages the operating pin 16 with the inclined groove and moves the needle valve forward and backward by rotating the heating power adjusting lever 1, and is attached to the valve body 14. The fixed mounting base plate 19 is pivotally supported by the pivotal support portion 20, and by rotating the heating power adjusting lever 1, the needle valve is advanced and retracted to adjust the gas amount to the burner, and the burning power of the burner is stepless. Can be controlled.
[0018]
In the safety device C provided at the base end of the thermal power adjustment lever 1, the distal end locking piece 22 of the operation lever 21 pivotally supported by the base end portion of the thermal power adjustment lever 1 is attached to the mounting base plate 19 by the torsion spring 23. Even if the operation lever 21 is moved from the fire power “strong” to the fire power “weak” in the state (for example, approximately) The locking piece 22 on the side of the heating power adjusting lever 1 is locked to the locking step portion 24 of the mounting base plate 19 at the thermal power “medium” position, and its movement is once blocked, and then the operation lever 21 is moved to the torsion spring 23. When it is lifted upward against this, the locking piece 22 is detached from the locking step 24 and can be moved to a position where the heating power is “weak”.
[0019]
Further, at the joint portion between the heating power adjustment lever 1 and the mounting base plate 19, the engagement support grooves 25 and 26 bored on both sides of the joint portion of the mounting base plate 19 are projected on both sides of the joint portion of the thermal power adjustment lever 1. The engagement support pieces 27 and 28 are slidably fitted, and support means for supporting the heating power adjusting lever 1 with respect to the mounting base plate 19 in its use rotation range is provided. The hooking piece 30 formed integrally with the heating power adjustment lever 1 is hooked on the blocking piece 29 formed integrally with the mounting base plate 19 to restrict the use rotation range of the heating power adjustment lever 1, thereby making this use cycle. In the moving range, the engagement support grooves 25, 26 and the engagement support pieces 27, 28 are kept engaged.
[0020]
Reference numeral 2 denotes an interlocking lever of the interlocking device D. For example, when the ignition control lever 1 is ignited in a state where the heating power is “weak” or “strong”, the interlocking lever 2 interlocked with the operation of the operation button is used. Is moved to at least the position of the heating power “medium” and can be safely ignited with a gas amount of about the heating power “medium”. And a shaft hole 6 which can be fitted and supported from the axial direction at an angle deviating from the swing angle range of the interlocking lever 2 on the round shaft 5 provided on one of the two side walls 7 on the other side of the bearing portion 3. A shaft hole 9 comprising a round hole 9a that can be fitted to and supported by the provided square shaft 8 from the cross direction and a slit groove 9b that is smaller than the diameter of the round hole 9a and into which the square shaft 8 can be inserted and withdrawn is provided. The angular axis 8 is formed by chamfering both sides of the round axis.
[0021]
The lower end portion of the interlocking lever 2 is provided with a pressing piece 11 that is pressed by an operating rod 10 that is interlocked with an operation button, and the one end of the upper end portion is integrally formed with the heating power adjusting lever 1. A pressing plate piece 13 that pushes the piece 12 is provided.
[0022]
In the above configuration, when the interlocking lever 2 is fitted to the bearing portion 3 and pivotally supported, the shaft hole 6 formed in one side wall 4 is connected to the one round shaft 5 of the bearing portion 3 so that the swinging angle of the interlocking lever 2 is increased. Inclined from the axial direction a at an angle out of the range (see the state of the solid line from the chain line state in FIG. 6), and then the shaft hole 9 drilled in the other side wall 7 is made into the other angular axis 8 of the bearing portion 3. When the interlocking lever 2 is rotationally displaced within the swing angle range (see the arrow c in FIG. 5), it is fitted in the cross direction b through the slit groove 9b (see the solid line state in FIG. 6 to the state in FIG. 7). The interlocking lever 2 is pivotally supported by the bearing portion 3 so as not to be pulled out under the support of both ends (see the solid line state in FIG. 5).
[0023]
Thereafter, the interlocking lever 2 is brought into contact when the peripheral component 33 is assembled (see FIG. 1) or a part of the interlocking lever 2 is deformed so that the interlocking lever 2 does not return to an angle out of the swing angle range. To do. Further, as shown in FIGS. 6 and 7, when the opposite sides of the shoulder portions on both sides of the bearing portion 3 are chamfered 31 and 32, the interlock lever 2 having a U-shaped cross section with respect to the bearing portion 3 is formed. The fitting can be performed smoothly without increasing the width dimension, and the backlash after the shaft support can be reduced. Further, the illustrated embodiment shows a case where the ignition control lever 1 is ignited in a state where the thermal power is “weak”. Of course, the operation can be obtained and other gas amount control can be easily performed.
[0024]
【The invention's effect】
The gas amount control device for a gas combustor according to the present invention is implemented in the form as described above, and has the effects described below.
[0025]
In the gas amount control device of the first gas combustor according to the present invention, the interlocking lever can support the mounting shaft under the both-end support structure without using extra parts for the supporting shaft provided on both sides of the bearing portion. Since there is no variation in operation, the operation can be stabilized, and the assembly work can be done simply by fitting and turning. Therefore, work efficiency is improved, and mass production of uniform products is possible. In addition, since the number of components is small, the cost is low, and the strength is strong and durable.
[0026]
In the gas amount control device for the second gas combustor of the present invention, one shaft hole of the interlocking lever is fitted to one round shaft of the bearing portion at an angle outside the swinging angle range of the interlocking lever, and the other After fitting the other angular shaft of the bearing part in the shaft hole of the shaft, if the interlocking lever is displaced within the swing angle range, it will be supported so that it will not come off. It is possible to assemble the both-end support by simply fitting it into.
[0027]
In the gas amount control device of the third gas combustor according to the present invention, after one shaft hole of the interlocking lever is fitted to one round shaft of the bearing portion from the axial direction, the other shaft hole is the other of the bearing portion. If it is fitted to the square shaft through the slit groove from the crossing direction, the interlocking lever is pivotally supported by the bearing part under both-end support, so the interlocking lever is attached to the bearing part easily and securely. sell.
[0028]
In the gas amount control device of the fourth gas combustor according to the present invention, since the inclined chamfered portion is provided on the shoulder portion of the bearing portion, the fitting of the interlocking lever to the bearing portion does not increase the width dimension of the interlocking lever. However, the backlash after the shaft support is reduced. Therefore, the operation of attaching the interlocking lever to the bearing portion becomes easy and the operation is stabilized.
[Brief description of the drawings]
FIG. 1 is an overall side view showing an embodiment of a gas amount control device for a gas combustor according to the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a front view of only the interlocking lever portion.
FIG. 4 is a perspective view of only the interlocking lever portion.
FIG. 5 is a side view of only a main part showing a fitting state of the interlocking lever to the bearing part.
FIG. 6 is a partially cut plan view of only a main part showing a state where the interlocking lever is fitted to the bearing part.
FIG. 7 is a partially cut-out plan view of only a main part showing a fitting state of the interlocking lever with respect to the bearing part.
FIG. 8 is a side view showing an example of a gas amount control device of a conventional gas combustor.
FIG. 9 is a front view of only the main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Thermal power adjustment lever, 2 ... Interlocking lever, 3 ... Bearing part, 4 ... One side wall of an interlocking lever, 5 ... One round shaft of a bearing part, 6 ... Shaft hole drilled in one side wall, 7 ... Interlocking lever , The other angular axis of the bearing portion, and 9 the shaft hole drilled in the other side wall.

Claims

The flashing means that opens the gas valve by push operation of the operation button, the thermal power adjustment means that controls the thermal power of the burner by operating the thermal power adjustment lever, and the interlocking lever that interlocks with the operation of the operation button etc. are swung. In the gas amount control device of the gas combustor, the interlocking means for moving the thermal power adjustment lever to a predetermined thermal power position,
The interlocking lever is pivotally supported on a support shaft provided on both sides of the bearing portion, and is a double-sided support structure that can be detached from the bearing portion at an angle that is out of a swing angle range by a push operation of the operation button or the like. A gas amount control device for a gas combustor, characterized in that

A shaft hole that can be pivotally supported by a round shaft provided on one side of the bearing portion is provided on one side wall of two parallel parallel surfaces with a U-shaped cross section, and an axis is provided on the other side wall of the bearing portion. An interlocking lever is provided with a shaft hole consisting of a round hole that can be supported and a slit groove that is smaller than its diameter and into which the angular shaft can be inserted, and is interlocked with the shaft of the bearing section at an angle that is out of the swing angle range of the interlocking lever. The gas of the gas combustor according to claim 1, wherein the shaft hole of the gas combustor is supported so that the shaft hole and the shaft do not come off when the shaft hole of the lever is fitted and the interlocking lever is displaced within the swing angle range. Quantity control device.

Fit one shaft hole of the interlocking lever from the axial direction to one round shaft of the bearing part, and fit the other shaft hole of the interlocking lever from the cross direction through the slit groove to the other angular axis of the bearing part, 3. The interlocking lever is displaced in a swing angle range, the interlock lever is attached to the bearing portion, and the interlock lever is regulated so as not to return to an angle outside the swing angle range. The gas quantity control device of the gas combustor as described.

4. A gas amount control device for a gas combustor according to claim 3, wherein an oblique chamfered portion is provided on a shoulder portion of the bearing portion.