JP3661724B2

JP3661724B2 - Gas amount control device

Info

Publication number: JP3661724B2
Application number: JP31421196A
Authority: JP
Inventors: 義弘森
Original assignee: パロマ工業株式会社
Priority date: 1996-11-11
Filing date: 1996-11-11
Publication date: 2005-06-22
Anticipated expiration: 2016-11-11
Also published as: JPH10141665A

Description

【０００１】
【発明の属する技術分野】
この発明はガス量調節装置に関し、詳しくはテーブルこんろ等において、火力調節レバーを操作してニードル弁を進退しバーナの火力をコントロールするガス量調節装置に関する。
【０００２】
【従来の技術】
従来のこの種のガス量調節装置は、たとえば、図１０〜図１２に示されているように、弁本体１′に装備されたニードル弁の弁軸２′に固定された作動ピン３′を係合してニードル弁を回転させる係合溝４′をもった火力調節レバー５′と、上記作動ピン３′をスライド可能に係合して火力調節レバー５′の回転操作でニードル弁を進退移動させる斜状ガイド溝６′をもち、上記弁本体１′に取付け固定される取付け台板７′とからなり、取付け台板７′に枢支された火力調節レバー５′を操作してニードル弁を進退させることによりバーナへのガス量を調節しバーナの火力をコントロールする構造となっている。
【０００３】
上記構成のガス量調節装置において、取付け台板７′に対する火力調節レバー５′の枢支部は、カシメピン８′又は同等のビス等により枢支しているのが一般的である（図１０参照）。そして、カシメピン８′の頭部と取付け台板７′との間に板バネ９′を介在させて取付け台板７′に対する火力調節レバー５′のガタつきを防止しているものもある（図１２参照）。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の技術における枢支部は、カシメピン８′又は同等のビス等を用いて取付け台板７′に火力調節レバー５′を枢支しているので、カシメ加工等には多くの手数と労力を要するばかりでなく、カシメピン８′又は同等のビス等の部品が必要であるため、部品点数も多くなる。したがって、作業工程及び部品点数の増大と相まって作業能率も悪いためにコスト高となるという問題点があった。
【０００５】
この発明のガス量調節装置は、上記課題を解決し、部品点数の減少と作業工程の減少と作業労力の軽減を図ってコスト安で、しかも、軽快、かつ、確実な操作ができるガス量調節装置を提供することを目的とする。
【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のガス量調節装置は、
取付け台板に枢支された火力調節レバーを操作してニードル弁を進退することによりガス量を調節するガス量調節装置において、
上記取付け台板と火力調節レバーの接合部に、取付け台板と火力調節レバー自体を加工して形成された枢支手段と、取付け台板に火力調節レバーを支持する支持手段と、取付け台板と火力調節レバーとが分離しないように結合される結合手段とを備えた構成を特徴とする。
上記構成を有するこの発明の第１のガス量調節装置は、取付け台板に対し火力調節レバーは取付け台板と火力調節レバー自体を加工して形成された枢支手段で枢支されているから、従来のように余分なカシメピン又は同等のビス等を用いる必要はなく、また、取付け台板に対し火力調節レバーは支持手段で確実に支持され、しかも、取付け台板と火力調節レバーは結合手段で分離しないように結合される。
【０００７】
上記課題を解決するこの発明の第２のガス量調節装置は、上記第１のガス量調節装置の枢支手段が、
取付け台板と火力調節レバーの接合部のいずれか一方に形成された軸孔に他方に形成された支軸を回動自由に嵌めつけて火力調節レバーが該枢支部を支点として回動操作できる構成であることを特徴とする。
上記構成を有するこの発明の第２のガス量調節装置は、たとえば、取付け台板の接合部の略中心に穿った軸孔に火力調節レバーの接合部の略中心に設けた支軸を回動自由に嵌めつければ、取付け台板に対する火力調節レバーの枢支が行える。
【０００８】
上記課題を解決するこの発明の第３のガス量調節装置は、上記第１のガス量調節装置の支持手段が、
取付け台板と火力調節レバーの接合部のいずれか一方に形成された係合支持溝に他方に形成された係合支持片をスライド可能に嵌めつけて火力調節レバーの使用回動範囲において取付け台板に火力調節レバーが支持される構成であることを特徴とする。
上記構成を有するこの発明の第３のガス量調節装置は、たとえば、取付け台板の接合部の両側に穿った係合支持溝に火力調節レバーの接合部の両側に突設した係合支持片をスライド可能に嵌めつければ、取付け台板に火力調節レバーがその使用回動範囲において支持される。
【０００９】
上記課題を解決するこの発明の第４のガス量調節装置は、上記第１のガス量調節装置の結合手段が、
取付け台板と火力調節レバーのいずれか一方に形成された回転阻止片に他方に形成された引掛け片が引掛って火力調節レバーの使用回動範囲が規制されて上記支持手段の係合を保つことにより取付け台板と火力調節レバーとが分離しないように結合される構成であることを特徴とする。
上記構成を有するこの発明の第４のガス量調節装置は、たとえば、取付け台板に形成された回転阻止片に火力調節レバーに形成された引掛け片が引掛って火力調節レバーの使用回動範囲が規制されることにより上記支持手段の係合が保たれるため、取付け台板と火力調節レバーとは支持手段で結合され分離することはない。
【００１０】
上記課題を解決するこの発明の第５のガス量調節装置は、上記第１〜４のガス量調節装置において、
取付け台板と火力調節レバーの接合部は、火力調節レバーの不使用位置において軸孔に支軸を嵌着して接合し、火力調節レバーを使用位置に回動変位して係合支持溝に係合支持片を係合して取付け台板に火力調節レバーを支持せしめ、該使用位置において引掛け片が回転阻止片に引掛かるように変形して取付け台板と火力調節レバーを組みつける構成であることを特徴とする。
上記構成を有するこの発明の第５のガス量調節装置は、たとえば、取付け台板に形成された軸孔に火力調節レバーを不使用位置において嵌めつけ、その後、火力調節レバーを使用位置に回動変位すると、係合支持溝に係合支持片が係合して取付け台板に火力調節レバーが支持され、この使用位置において引掛け片を変形して回転阻止片に引掛かるようにすることにより、取付け台板と火力調節レバーは組みつけられる。
【００１１】
上記課題を解決するこの発明の第６のガス量調節装置は、上記第１〜５のガス量調節装置において、
取付け台板と火力調節レバーの接合部のいずれか一方に摩擦抵抗の減少とガタつき防止を兼備する凸条を備えた構成であることを特徴とする。
上記構成を有するこの発明の第６のガス量調節装置は、たとえば、取付け台板の軸孔の囲りに凸条を形成すれば、この凸条で火力調節レバーの回動操作が軽く正確に行いうる。
【００１２】
上記課題を解決するこの発明の第７のガス量調節装置は、上記第１〜５のガス量調節装置において、
取付け台板と火力調節レバーの接合部にガタつきを防止する緩衝部材を介在させた構成であることを特徴とする。
上記構成を有するこの発明の第７のガス量調節装置は、取付け台板と火力調節レバーの接合部に介在された緩衝部材で火力調節レバーのガタつき等が吸収され、火力調節レバーの回動操作が常時確実に行いうる。
【００１３】
【発明の実施の形態】
この発明のガス量調節装置では、たとえば、実施例に対応する図面に示されているように、弁本体１に装備されているニードル弁の弁軸２に固定された作動ピン３を係合してニードル弁を回転させる係合溝４をもった火力調節レバー５と、上記作動ピン３をスライド可能に係合して火力調節レバー５の回転操作でニードル弁を進退移動させる斜状ガイド溝６をもち、上記弁本体１に取付け固定される取付け台板７とからなり、取付け台板７に枢支された火力調節レバー５を操作してニードル弁を進退させることによりバーナへのガス量を調節しバーナの火力をコントロールするガス量調節装置において、
【００１４】
上記取付け台板７に対する火力調節レバー５の枢支部を、取付け台板７の接合部７ａの略中心に穿った軸孔８に火力調節レバー５の接合部５ａの略中心に設けた支軸９を回動自由に嵌めつけて取付け台板７に対し火力調節レバー５をそれ自体を加工して形成された軸孔８と支軸９により枢支できるようにしている。
【００１５】
また、上記取付け台板７に対する火力調節レバー５の支持を、取付け台板７の接合部７ａの両側に穿った係合支持溝１０、１１に火力調節レバー５の接合部５ａの両側に突設した係合支持片１２、１３をスライド可能に嵌めつけて取付け台板７に火力調節レバー５がその使用回動範囲において支持されるようにしている。
【００１６】
さらに、上記取付け台板７と火力調節レバー５は、取付け台板７に形成された回転阻止片１４に火力調節レバー５に形成された引掛け片が１５が引掛って火力調節レバー５の使用回動範囲を規制することにより上記係合支持溝１０、１１と係合支持片１２、１３との係合が保たれて取付け台板７と火力調節レバー５とが分離することのないようにしている。
【００１７】
さらには、上記枢支手段、支持手段及び結合手段は取付け台板７の軸孔８に火力調節レバー５の支軸９が火力調節レバー５の不使用位置において嵌めつけでき、上記軸孔８に支軸９を嵌めつけた後、火力調節レバー５を使用位置に回動変位したときは取付け台板７の係合支持溝１０、１１に火力調節レバー５の係合支持片１２、１３が係合し、さらに、該使用位置において引掛け片１５を回転阻止片１４に引掛かるように折曲げ変形すれば取付け台板７と火力調節レバー５とが一体的に組みつけうるようにしている。
【００１８】
また、上記取付け台板７と火力調節レバー５の接合部の取付け台板７の軸孔８の囲りに凸条１６を形成するか、又は取付け台板７と火力調節レバー５の接合部７ａ、５ａの枢支部の囲りに緩衝部材を介在させて火力調節レバーが軽快、かつ、確実に操作できるようにしている。
【００１９】
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。
【００２０】
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、この発明のガス量調節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。
【００２１】
【実施例】
図１〜図９は一実施例としてのこの発明のガス量調節装置を示したものであって、ガス量調節装置は、弁本体１に装備されているニードル弁（図示せず）の弁軸２に固定された作動ピン３を係合してニードル弁を回転させる係合溝４をもった火力調節レバー５と、上記作動ピン３をスライド可能に係合して火力調節レバー５の回転操作でニードル弁を進退移動させる斜状ガイド溝６をもち、上記弁本体１に取付け固定される取付け台板７とからなり、取付け台板７に枢支された火力調節レバー５を操作してニードル弁を進退させることによりバーナへのガス量を調節しバーナの火力を無段階にコントロールできるようになっている。
【００２２】
そして、図１及び図２に示した実施例は上記火力調節レバー５にガス量を火力「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Ａを備えており、図５及び図７〜図８に示した実施例では上記安全装置のないものを示している。
【００２３】
そこで、上記安全装置Ａは図１及び図２に例示されているように、火力調節レバー５の基端部に枢支された操作レバー１８の先端係止片１９をトーションバネ２０により取付け台板７に設けられた基端係止段部２１に係止するように付勢して備え、操作レバー１８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７の係止段部２１に火力調節レバー５の係止片１９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１８をトーションバネ２０に抗して上方へ持ち上げると係止段部２１から係止片１９が外れ火力「弱」の位置への移動ができる構造となっている。
【００２４】
また、図１及び図２の実施例において、２２は戻しレバーで火力調節レバー５が火力「弱」の位置にあるときに点火操作すると、点火操作釦と連動する作動片２３で戻しレバー２２の下端部を押してその先端部で火力調節レバー５の押動片２４を押し火力調節レバー５を、たとえば、火力「中」の位置へ変動させて火力「中」のガス量で点火できるようにして安全点火を期するものである。この戻しレバー２２は弁本体１に枢設されている。
【００２５】
上記取付け台板７に対する火力調節レバー５の枢支部は、図１〜図５に示した実施例では取付け台板７の接合部７ａの略中心に穿った軸孔８に火力調節レバー５の接合部５ａの略中心に一体形成された支軸９を回動自由に嵌めつけるだけで取付け台板７に対し火力調節レバー５の枢支が行える構造となっており、図６に示した実施例は軸孔８と支軸を逆に設けたものであって、取付け台板７の接合部７ａの略中心に一体形成した支軸９を火力調節レバー５の接合部５ａの略中心に穿った軸孔８に回動自由に嵌めつけるだけで取付け台板７に対し火力調節レバー５の枢支が行える構造となっている。なお、支軸９としては、実施例のように取付け台板７又は火力調節レバー５の接合部７ａ又は５ａに短筒状の支軸９を一体形成するのがよい。
【００２６】
上記取付け台板７に対し火力調節レバー５の支持は、実施例では取付け台板７の接合部７ａの両側に穿った係合支持溝１０、１１に火力調節レバー５の接合部５ａの両側に突設した係合支持片１２、１３をスライド可能に嵌めつけるだけで火力調節レバー５の使用回動範囲において支持される構造となしている。しかし、図示しないが上記実施例とは逆に取付け台板側に係合支持片を設け、火力調節レバー側に係合支持溝を設けて取付け台板７に対し火力調節レバー５をその使用回動範囲において支持するようにしてもよい。
【００２７】
上記取付け台板７と火力調節レバー５の結合は、実施例では取付け台板７に一体形成された回転阻止片１４に火力調節レバー５に一体形成された引掛け片が１５が引掛って火力調節レバー５の使用回動範囲を規制することで上記係合支持溝１０、１１と係合支持片１２、１３との係合が保たれて取付け台板７と火力調節レバー５とが分離しないよう結合される構造となっている。しかし、図示しないが上記実施例とは逆に取付け台板側に引掛け片を設け、火力調節レバー側に回転阻止片を設けて取付け台板７と火力調節レバー５が分離しないようにしてもよい。
【００２８】
取付け台板７と火力調節レバー５の接合部７ａ、５ａにおける上記した枢支手段、支持手段及び結合手段は、たとえば、図７〜図９に示されているような手順で組みつけうるようになしている。すなわち、取付け台板７と火力調節レバー５を逆さまにして取付け台板７に対し火力調節レバー５の不使用位置ａにおいて両接合部７ａ、５ａが重合できるようになっているため、この不使用位置ａで取付け台板７の接合部７ａの軸孔８に火力調節レバー５の接合部５ａの支軸９を嵌めつけ両接合部７ａ、５ａを重合する（図７の状態参照）。この不使用位置ａにおいては火力調節レバー５の係合支持片１２、１３及び変形されていない引掛け片１５はその重合に支障のない位置にある。
【００２９】
上記枢支部の嵌めつけ後、火力調節レバー５を使用位置ｃ−ｄに回動変位すると、火力調節レバー５の係合支持片１２、１３が取付け台板７の係合支持溝１０、１１に係合されると同時に火力調節レバー５の引掛け片１５が取付け台板７の回転阻止片１４上に位置する。そこで、火力調節レバー５を、たとえば、使用位置ｃ−ｄの略中間位置ｂとして引掛け片１５を回転阻止片１４側に略９０度折曲げ変形する（図８の状態参照）。
【００３０】
上記使用位置ｃ−ｄにおける係合支持片１２、１３の係合支持溝１０、１１への係合と引掛け片１５の折曲げ変形とにより、取付け台板７に対し火力調節レバー５は係合支持片１２、１３と係合支持溝１０、１１により支持され、取付け台板７と火力調節レバー５とは引掛け片１５が回転阻止片１４に引掛って火力調節レバー５の使用回動範囲が規制されるため、係合支持片１２、１３と係合支持溝１０、１１との係合が保たれて取付け台板７と火力調節レバー５とは分離しないように結合される（図９の状態参照）。
【００３１】
また、上記取付け台板７の接合部７ａの軸孔８の囲りに断面円弧状の凸条１６を一体形成し、火力調節レバー５の接合部５ａとの接触が線接触となるようにして摩擦抵抗の軽減を図っている。そして、取付け台板７と火力調節レバー５の接合部７ａ、５ａとの間の枢支部の囲りに板バネ等の緩衝部材１７を介在させて火力調節レバー５が軽快、かつ、確実に操作でき、かつ、火力調節レバー５のガタつきをも防ぐようにしている。
【００３２】
【発明の効果】
この発明のガス量調節装置は、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。
【００３３】
この発明の第１のガス量調節装置は、取付け台板と火力調節レバーはそれ自体を加工して形成された枢支手段で枢支されているから、従来のようにカシメピン又は同等のビス等の余分な部品を用いる必要がないため、部品点数の減少と作業工程の減少及び作業労力の軽減が図りうる。したがって、ガス量調節装置が安価に提供できる。
また、取付け台板に対し火力調節レバーは支持手段で確実に支持され、しかも、取付け台板と火力調節レバーは結合手段で分離しないように結合されるから、その操作が、確実に行いうるばかりでなく、転換作業時等の取扱いにも便利である。
【００３４】
この発明の第２のガス量調節装置は、上記第１のガス量調節装置の枢支手段が、取付け台板と火力調節レバー自体に設けられた軸孔に支軸を嵌めつけるだけであるから、上記第１の発明の効果が容易に実現でき、その組みつけも簡易に行いうる。
【００３５】
この発明の第３のガス量調節装置は、上記第１のガス量調節装置の支持手段が、係合支持溝に係合支持片を上記軸支後、火力調節レバーを変位してスライド可能に嵌めつけるだけであるから、上記第１の発明の効果が容易に実現でき、取付け台板に対する火力調節レバーの支持を安定的に行いうる。
【００３６】
この発明の第４のガス量調節装置は、上記第１のガス量調節装置の結合手段が、回転阻止片に引掛け片が引掛って火力調節レバーの使用回動範囲を規制することにより上記第３の発明の支持手段の係合を保つようにしたから、上記第１の発明の効果が容易に実現でき、組みつけ時の引掛け片の変形加工も単に折曲げるだけで簡易に行いうる。
【００３７】
この発明の第５のガス量調節装置は、上記第１〜４のガス量調節装置の枢支手段、支持手段及び結合手段の組みつけが簡易に行いうるようにしたので、上記第１〜４の発明の効果が容易に実現でき、特に、組みつけ作業が簡単であるから能率的に行える。
【００３８】
この発明の第６のガス量調節装置は、上記第１〜５のガス量調節装置において、取付け台板に対する火力調節レバーの摩擦抵抗を減じ、また、この発明の第７のガス量調節装置は、取付け台板と火力調節レバーの操作が常時軽快、かつ、確実に行いうるようにしたから、上記第１〜５の発明の効果が容易に実現できる。
【図面の簡単な説明】
【図１】この発明のガス量調節装置の一実施例を示した一部を切断した全体側面図である。
【図２】その要部だけの平面図である。
【図３】図２のＸ−Ｘ断面図である。
【図４】取付け台板と火力調節レバーの接合部に緩衝部材を介在した場合の断面図である。
【図５】取付け台板と火力調節レバーを分離して示した斜視図である。
【図６】軸孔と支軸を逆に設けた場合の要部だけの断面図である。
【図７】取付け台板と火力調節レバーを逆さにして組みつける手順の火力調節レバーが不使用位置での重合状態を示した平面図である。
【図８】火力調節レバーを使用位置に変位した場合の平面図である。
【図９】組みつけ完了状態の平面図である。
【図１０】従来のガス量調節装置の一例を示した一部を切断した側面図である。
【図１１】その要部だけの平面図である。
【図１２】カシメビスの頭部と取付け台板との間に板バネを介在した従来例の要部の断面図である。
【符号の説明】
５…火力調節レバー、７…取付け台板、８…軸孔、９…支軸、１０，１１…係合支持溝、１２，１３…係合支持片、１４…回転阻止片、１５…引掛け片、１６…凸状、１７…緩衝部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas amount adjusting device, and more particularly to a gas amount adjusting device that controls a heating power of a burner by operating a heating power adjusting lever to advance and retract a needle valve in a table stove or the like.
[0002]
[Prior art]
As shown in FIGS. 10 to 12, for example, a conventional gas amount adjusting device of this type has an operating pin 3 'fixed to a valve shaft 2' of a needle valve mounted on a valve body 1 '. A heating power adjusting lever 5 'having an engaging groove 4' for engaging and rotating the needle valve and the operating pin 3 'are slidably engaged, and the needle valve is advanced and retracted by rotating the heating power adjusting lever 5'. It has an inclined guide groove 6 'to be moved, and comprises a mounting base plate 7' that is attached and fixed to the valve body 1 '. The needle is operated by operating a heating power adjusting lever 5' pivotally supported by the mounting base plate 7 '. It has a structure that controls the burner's thermal power by adjusting the amount of gas to the burner by moving the valve back and forth.
[0003]
In the gas amount adjusting device having the above-described configuration, the pivotally supporting portion of the heating power adjusting lever 5 'with respect to the mounting base plate 7' is generally pivotally supported by a caulking pin 8 'or an equivalent screw (see FIG. 10). . In some cases, a plate spring 9 'is interposed between the head of the caulking pin 8' and the mounting base plate 7 'to prevent the heating power adjusting lever 5' from rattling against the mounting base plate 7 '(see FIG. 12).
[0004]
[Problems to be solved by the invention]
However, since the pivotal support portion in the above prior art pivots the heating power adjusting lever 5 'on the mounting base plate 7' using a caulking pin 8 'or an equivalent screw or the like, a large amount of work is required for caulking processing or the like. Not only labor is required, but parts such as caulking pins 8 'or equivalent screws are required, and the number of parts is increased. Therefore, there has been a problem that the cost is increased because the work efficiency is poor with the increase of the work process and the number of parts.
[0005]
The gas amount adjusting device of the present invention solves the above-mentioned problems, and reduces the number of parts, reduces the work process, and reduces the work effort, so that the gas amount can be controlled at a low cost, while being light and reliable. An object is to provide an apparatus.
[0006]
[Means for Solving the Problems]
The first gas amount adjusting device of the present invention for solving the above-mentioned problems is as follows.
In the gas amount adjusting device that adjusts the gas amount by operating the heating power adjustment lever pivotally supported by the mounting base plate to advance and retract the needle valve,
A pivoting means formed by processing the mounting base plate and the thermal power adjustment lever itself, a support means for supporting the thermal power adjustment lever on the mounting base plate, and a mounting base plate And a heating power adjusting lever are coupled to each other so as not to be separated from each other.
In the first gas amount adjusting device of the present invention having the above-described configuration, the heating power adjusting lever is pivotally supported by the pivoting means formed by processing the mounting plate and the heating power adjusting lever itself with respect to the mounting base plate. It is not necessary to use extra caulking pins or equivalent screws as in the prior art, and the heating power adjusting lever is securely supported by the supporting means with respect to the mounting base plate, and the mounting base plate and the thermal power adjusting lever are coupling means. It is combined so as not to be separated.
[0007]
According to a second gas amount adjusting device of the present invention for solving the above-mentioned problems, the pivot means of the first gas amount adjusting device includes:
The support shaft formed on the other side can be freely fitted to the shaft hole formed on one of the joints between the mounting base plate and the heat control lever, and the heat control lever can be rotated about the pivot. It is the structure.
In the second gas amount adjusting device of the present invention having the above-described configuration, for example, a support shaft provided at the approximate center of the joint portion of the heating power adjusting lever is rotated in the shaft hole drilled at the approximate center of the joint portion of the mounting base plate. If it is freely fitted, the thermal power adjustment lever can be pivoted with respect to the mounting base plate.
[0008]
According to a third gas amount adjusting device of the present invention for solving the above-mentioned problems, the supporting means of the first gas amount adjusting device comprises:
An engagement support piece formed on the other side is slidably fitted into an engagement support groove formed on one of the joints of the mounting base plate and the thermal power adjustment lever, and the mounting base is used within the range of rotation of the thermal power adjustment lever. It is the structure by which a thermal-power adjustment lever is supported by a board.
The third gas amount adjusting device of the present invention having the above-described configuration is, for example, an engagement support piece projecting on both sides of the joint portion of the heating power adjustment lever in the engagement support groove formed on both sides of the joint portion of the mounting base plate. Can be slidably fitted, the heating power adjustment lever is supported on the mounting base plate within the rotation range of use.
[0009]
According to a fourth gas amount adjusting device of the present invention for solving the above-mentioned problems, the coupling means of the first gas amount adjusting device comprises:
The rotation prevention piece formed on one of the mounting base plate and the heating power adjustment lever is hooked with the hook piece formed on the other to restrict the use rotation range of the heating power adjustment lever, and the support means is engaged. The mounting base plate and the heating power adjusting lever are coupled so as not to be separated by maintaining.
In the fourth gas amount adjusting device of the present invention having the above-described configuration, for example, the hooking piece formed on the heating power adjusting lever is hooked to the rotation preventing piece formed on the mounting base plate, and the use of the heating power adjusting lever is rotated. Since the engagement of the support means is maintained by restricting the range, the mounting base plate and the heating power adjustment lever are not coupled and separated by the support means.
[0010]
A fifth gas amount adjusting device of the present invention for solving the above-described problems is the above first to fourth gas amount adjusting devices,
The joint between the mounting base plate and the thermal power adjustment lever is joined by inserting the support shaft into the shaft hole when the thermal power control lever is not used, and the thermal power control lever is rotated and displaced to the use position in the engagement support groove. A structure in which the engagement support piece is engaged to support the heating power adjustment lever on the mounting base plate, and the hooking piece is deformed so as to be hooked on the rotation prevention piece at the use position, and the mounting base plate and the thermal power adjustment lever are assembled. It is characterized by being.
In the fifth gas amount adjusting device of the present invention having the above-described configuration, for example, the heating power adjusting lever is fitted in the shaft hole formed in the mounting base plate at the non-use position, and then the heating power adjusting lever is rotated to the use position. When displaced, the engagement support piece engages with the engagement support groove, and the heating power adjustment lever is supported on the mounting base plate. In this use position, the hook piece is deformed to be hooked on the rotation prevention piece. The mounting base plate and the heating power adjustment lever are assembled.
[0011]
A sixth gas amount adjusting device of the present invention for solving the above-described problems is the above first to fifth gas amount adjusting devices,
One of the joints of the mounting base plate and the thermal power control lever is provided with a ridge that has both reduced frictional resistance and prevention of rattling.
In the sixth gas amount adjusting device of the present invention having the above-described configuration, for example, if a protrusion is formed around the shaft hole of the mounting base plate, the turning operation of the heating power adjustment lever is light and accurate with this protrusion. Yes.
[0012]
The seventh gas amount adjusting device of the present invention for solving the above-mentioned problems is the above first to fifth gas amount adjusting devices,
It is the structure which interposed the buffer member which prevents rattling at the junction part of a mounting base plate and a thermal-power adjustment lever, It is characterized by the above-mentioned.
According to the seventh gas amount adjusting device of the present invention having the above-described structure, the rattling of the heat adjusting lever is absorbed by the buffer member interposed at the joint between the mounting base plate and the heating power adjusting lever, and the heating power adjusting lever is rotated. The operation can always be performed reliably.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
In the gas amount adjusting device of the present invention, for example, as shown in the drawing corresponding to the embodiment, the operating pin 3 fixed to the valve shaft 2 of the needle valve provided in the valve body 1 is engaged. A heating power adjusting lever 5 having an engaging groove 4 for rotating the needle valve, and an oblique guide groove 6 for slidingly engaging the operating pin 3 and moving the needle valve forward and backward by rotating the heating power adjusting lever 5. And a mounting base plate 7 attached and fixed to the valve body 1, and the amount of gas to the burner is controlled by operating the heating power adjusting lever 5 pivotally supported by the mounting base plate 7 to advance and retract the needle valve. In the gas amount adjusting device that controls the burner's heating power,
[0014]
The support shaft 9 provided at the approximate center of the joint portion 5a of the heating power adjusting lever 5 in the shaft hole 8 formed in the shaft center 8 of the joint base portion 7a of the attachment base plate 7 with the pivot portion of the thermal power adjustment lever 5 with respect to the mounting base plate 7. Is attached to the mounting base plate 7 so that the heating power adjusting lever 5 can be pivotally supported by a shaft hole 8 and a support shaft 9 formed by processing the heating power adjusting lever 5 itself.
[0015]
Further, the support of the heating power adjustment lever 5 with respect to the mounting base plate 7 is provided on both sides of the joint portion 5a of the thermal power adjustment lever 5 in the engagement support grooves 10 and 11 formed on both sides of the joint portion 7a of the mounting base plate 7. The engagement support pieces 12 and 13 are slidably fitted so that the heating power adjustment lever 5 is supported on the mounting base plate 7 in the use rotation range.
[0016]
Further, the mounting base plate 7 and the thermal power adjusting lever 5 are used by the thermal power adjusting lever 5 when the hook 15 formed on the thermal power adjusting lever 5 is hooked on the rotation preventing piece 14 formed on the mounting base plate 7. By restricting the rotation range, the engagement between the engagement support grooves 10 and 11 and the engagement support pieces 12 and 13 is maintained so that the mounting base plate 7 and the heating power adjusting lever 5 are not separated. ing.
[0017]
Further, the pivoting means, the supporting means and the coupling means can be fitted into the shaft hole 8 of the mounting base plate 7 in the position where the heating power adjusting lever 5 is not used. After the support shaft 9 is fitted, when the thermal power adjustment lever 5 is turned to the use position, the engagement support pieces 12 and 13 of the thermal power adjustment lever 5 are engaged with the engagement support grooves 10 and 11 of the mounting base plate 7. In addition, if the hooking piece 15 is bent and deformed so as to be hooked on the rotation preventing piece 14 in the use position, the mounting base plate 7 and the heating power adjusting lever 5 can be assembled together.
[0018]
Further, a ridge 16 is formed around the shaft hole 8 of the mounting base plate 7 at the joint between the mounting base plate 7 and the thermal power adjustment lever 5 or the joint 7 a between the mounting base plate 7 and the thermal power control lever 5. A shock-absorbing member is interposed in the surrounding of the pivotal support part 5a so that the heating power adjustment lever can be operated lightly and reliably.
[0019]
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.
[0020]
In order to further clarify the configuration, operation, and embodiment of the present invention described above, an embodiment specifically showing the gas amount adjusting device of the present invention will be described below with reference to the drawings.
[0021]
【Example】
1 to 9 show a gas amount adjusting device of the present invention as an embodiment, and the gas amount adjusting device is a valve shaft of a needle valve (not shown) provided in a valve body 1. A heating power adjusting lever 5 having an engaging groove 4 for rotating the needle valve by engaging the operating pin 3 fixed to 2 and a rotating operation of the heating power adjusting lever 5 by slidably engaging the operating pin 3 It has an inclined guide groove 6 for moving the needle valve forward and backward, and comprises a mounting base plate 7 that is fixedly attached to the valve body 1, and operates the heating power adjusting lever 5 pivotally supported on the mounting base plate 7 to operate the needle. By moving the valve back and forth, the amount of gas to the burner can be adjusted to control the burner's heating power steplessly.
[0022]
The embodiment shown in FIGS. 1 and 2 prevents fire extinguishing of the burner due to the gas amount being rapidly reduced when the gas amount is reduced to the heating power adjustment lever 5 from the heating power “strong” to the heating power “weak”. In the embodiment shown in FIGS. 5 and 7 to 8, the safety device A is provided without the safety device.
[0023]
Therefore, as shown in FIGS. 1 and 2, the safety device A attaches the front end locking piece 19 of the operation lever 18 pivotally supported by the base end portion of the heating power adjustment lever 5 by the torsion spring 20. 7, even if the operating lever 18 is moved from the “strong” power to the “weak” power (for example, in the middle (for example, The heating piece 19 is locked to the locking step portion 21 of the mounting base plate 7 at a substantially heating power “medium” position, and the movement of the locking lever 19 is temporarily prevented. Thereafter, the operation lever 18 is moved to the torsion spring. When it is lifted upward against 20, the locking piece 19 is detached from the locking step portion 21 and can be moved to a position where the heating power is “weak”.
[0024]
Further, in the embodiment shown in FIGS. 1 and 2, reference numeral 22 denotes a return lever, and when the ignition operation is performed when the heating power adjustment lever 5 is in the position of the heating power “weak”, the operating piece 23 of the return lever 22 is interlocked with the ignition operation button. Press the lower end and push the pushing piece 24 of the thermal power adjustment lever 5 at its tip so that the thermal power control lever 5 can be ignited with the gas amount of the thermal power “medium” by moving it to the position of the thermal power “medium”, for example. Safety ignition is expected. The return lever 22 is pivoted on the valve body 1.
[0025]
In the embodiment shown in FIGS. 1 to 5, the pivotal support portion of the heating power adjustment lever 5 with respect to the mounting base plate 7 is joined to the shaft hole 8 formed in the approximate center of the joint portion 7 a of the mounting base plate 7. 6 has a structure in which the heating power adjusting lever 5 can be pivotally supported with respect to the mounting base plate 7 only by freely fitting the supporting shaft 9 integrally formed at the substantially center of the portion 5a. The shaft hole 8 and the support shaft are provided in reverse, and the support shaft 9 integrally formed at the approximate center of the joint portion 7 a of the mounting base plate 7 is bored at the approximate center of the joint portion 5 a of the heating power adjusting lever 5. The heating power adjusting lever 5 can be pivotally supported with respect to the mounting base plate 7 only by freely fitting in the shaft hole 8. As the support shaft 9, a short cylindrical support shaft 9 is preferably formed integrally with the attachment base plate 7 or the joint 7a or 5a of the heating power adjustment lever 5 as in the embodiment.
[0026]
In the embodiment, the heating power adjusting lever 5 is supported by the engagement support grooves 10 and 11 formed on both sides of the joint 7a of the mounting base plate 7 on both sides of the joint 5a. The projecting engagement support pieces 12 and 13 are slidably fitted so as to be supported in the use rotation range of the heating power adjusting lever 5. However, although not shown, an engagement support piece is provided on the mounting base plate side contrary to the above embodiment, and an engagement support groove is provided on the thermal power adjustment lever side so that the thermal power adjustment lever 5 is used for the mounting base plate 7. You may make it support in a moving range.
[0027]
In the embodiment, the mounting base plate 7 and the thermal power adjusting lever 5 are joined together by the thermal blocking force 14 that is integrally formed with the thermal power adjusting lever 5 on the rotation preventing piece 14 that is integrally formed with the mounting base plate 7. By restricting the use rotation range of the adjustment lever 5, the engagement support grooves 10 and 11 and the engagement support pieces 12 and 13 are kept in engagement, and the mounting base plate 7 and the heating power adjustment lever 5 are not separated. It has a structure that is combined. However, although not shown in the figure, contrary to the above embodiment, a hook piece is provided on the mounting base plate side, and a rotation prevention piece is provided on the thermal power adjusting lever side so that the mounting base plate 7 and the thermal power adjusting lever 5 are not separated. Good.
[0028]
The above-mentioned pivot support means, support means and coupling means at the joint portions 7a and 5a of the mounting base plate 7 and the thermal power control lever 5 can be assembled in the procedure as shown in FIGS. There is no. That is, since the mounting base plate 7 and the thermal power adjustment lever 5 are turned upside down, the joint portions 7a and 5a can be superposed on the mounting base plate 7 at the non-use position a of the thermal power adjustment lever 5, so At the position a, the support shaft 9 of the joint portion 5a of the heating power adjusting lever 5 is fitted into the shaft hole 8 of the joint portion 7a of the mounting base plate 7 to superimpose the joint portions 7a and 5a (see the state of FIG. 7). In this non-use position a, the engagement support pieces 12 and 13 of the heating power adjusting lever 5 and the undeformed hook piece 15 are in a position that does not hinder the superposition thereof.
[0029]
When the thermal power adjustment lever 5 is rotated and displaced to the use position cd after the pivotal support is fitted, the engagement support pieces 12 and 13 of the thermal power adjustment lever 5 are inserted into the engagement support grooves 10 and 11 of the mounting base plate 7. Simultaneously with the engagement, the hook piece 15 of the heating power adjusting lever 5 is positioned on the rotation prevention piece 14 of the mounting base plate 7. Therefore, for example, the heating power adjusting lever 5 is bent approximately 90 degrees toward the rotation preventing piece 14 with the hooking piece 15 set at a substantially intermediate position b of the use position cd (see the state of FIG. 8).
[0030]
Due to the engagement of the engagement support pieces 12 and 13 with the engagement support grooves 10 and 11 at the use position cd and the bending deformation of the hook piece 15, the heating power adjustment lever 5 is engaged with the mounting base plate 7. The joint support pieces 12 and 13 are supported by the engagement support grooves 10 and 11, and the mounting base plate 7 and the heating power adjustment lever 5 are used to rotate the heating power adjustment lever 5 when the hook piece 15 is hooked on the rotation prevention piece 14. Since the range is restricted, the engagement support pieces 12 and 13 and the engagement support grooves 10 and 11 are kept engaged, and the mounting base plate 7 and the thermal power adjustment lever 5 are coupled so as not to be separated (see FIG. 9 state).
[0031]
Further, a convex strip 16 having an arc-shaped cross section is integrally formed around the shaft hole 8 of the joint portion 7a of the mounting base plate 7 so that the contact with the joint portion 5a of the heating power adjusting lever 5 is a line contact. The frictional resistance is reduced. Then, the thermal power adjusting lever 5 is lightly and reliably operated by interposing a buffer member 17 such as a leaf spring in the surrounding of the pivotal support portion between the mounting base plate 7 and the joint portions 7a and 5a of the thermal power adjusting lever 5. It is possible to prevent the heating power adjusting lever 5 from rattling.
[0032]
【The invention's effect】
The gas amount adjusting device of the present invention is implemented in the form as described above, and has the effects described below.
[0033]
In the first gas amount adjusting device according to the present invention, the mounting base plate and the heating power adjusting lever are pivotally supported by pivot means formed by processing themselves, so that a caulking pin or an equivalent screw or the like is used as in the prior art. Therefore, it is possible to reduce the number of parts, the work process, and the work labor. Therefore, the gas amount adjusting device can be provided at low cost.
In addition, the heating power adjusting lever is securely supported by the supporting means with respect to the mounting base plate, and the mounting base plate and the thermal power adjusting lever are coupled so as not to be separated by the coupling means, so that the operation can be performed reliably. It is also convenient for handling during conversion work.
[0034]
In the second gas amount adjusting device of the present invention, the pivot means of the first gas amount adjusting device only fits the supporting shaft into the shaft hole provided in the mounting base plate and the heating power adjusting lever itself. The effects of the first invention can be easily realized, and the assembly thereof can be easily performed.
[0035]
According to a third gas amount adjusting device of the present invention, the support means of the first gas amount adjusting device is slidable by displacing the heating power adjusting lever after the engaging support piece is pivotally supported in the engaging support groove. Since only the fitting is performed, the effect of the first aspect of the invention can be easily realized, and the heating power adjusting lever can be stably supported with respect to the mounting base plate.
[0036]
According to a fourth gas amount adjusting device of the present invention, the coupling means of the first gas amount adjusting device restricts the use rotation range of the heating power adjusting lever by the hooking piece hooking on the rotation preventing piece. Since the engagement of the support means of the third invention is maintained, the effect of the first invention can be easily realized, and the deformation process of the hooking piece at the time of assembly can be simply performed by simply bending. .
[0037]
In the fifth gas amount adjusting apparatus according to the present invention, the pivoting means, the supporting means, and the coupling means of the first to fourth gas amount adjusting apparatuses can be easily assembled. The effects of the present invention can be easily realized, and in particular, since the assembly work is simple, it can be performed efficiently.
[0038]
According to a sixth gas amount adjusting device of the present invention, in the first to fifth gas amount adjusting devices, the friction resistance of the heating power adjusting lever with respect to the mounting base plate is reduced. Since the operation of the mounting base plate and the heating power adjustment lever can be performed constantly and reliably, the effects of the first to fifth inventions can be easily realized.
[Brief description of the drawings]
FIG. 1 is an overall side view, partly cut away, showing an embodiment of a gas amount adjusting device of the present invention.
FIG. 2 is a plan view of only the main part.
3 is a cross-sectional view taken along line XX in FIG.
FIG. 4 is a cross-sectional view in the case where a buffer member is interposed at a joint portion between the mounting base plate and the heating power adjustment lever.
FIG. 5 is a perspective view showing a mounting base plate and a heating power adjustment lever separately.
FIG. 6 is a cross-sectional view of only a main part when a shaft hole and a support shaft are provided in reverse.
FIG. 7 is a plan view showing a state in which the heating power adjustment lever is assembled in the non-use position in the procedure of assembling the mounting base plate and the heating power adjustment lever upside down.
FIG. 8 is a plan view when the thermal power adjustment lever is displaced to a use position.
FIG. 9 is a plan view of the assembled state.
FIG. 10 is a side view, partly cut away, showing an example of a conventional gas amount adjusting device.
FIG. 11 is a plan view of only the main part.
FIG. 12 is a cross-sectional view of a main part of a conventional example in which a leaf spring is interposed between a caulking screw head and a mounting base plate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 5 ... Thermal power adjustment lever, 7 ... Mounting base plate, 8 ... Shaft hole, 9 ... Support shaft, 10, 11 ... Engagement support groove, 12, 13 ... Engagement support piece, 14 ... Rotation prevention piece, 15 ... Hook 16, convex, 17, cushioning member

Claims

In the gas amount adjusting device that adjusts the gas amount by operating the heating power adjustment lever pivotally supported by the mounting base plate to advance and retract the needle valve,
A pivoting means formed by processing the mounting base plate and the thermal power adjustment lever itself, a support means for supporting the thermal power adjustment lever on the mounting base plate, and a mounting base plate at the joint between the mounting base plate and the thermal power control lever A gas amount adjusting device comprising: a coupling means coupled so as not to separate the heating power adjusting lever.

The thermal power adjusting lever can be pivotally operated with the pivot portion as a fulcrum by freely fitting the pivot shaft formed on the other one into the shaft hole formed at one of the joint portions of the mounting base plate and the thermal power adjustment lever. The gas amount adjusting device according to claim 1, which is a pivoting means.

An engagement support piece formed on the other side is slidably fitted in an engagement support groove formed on one of the joints of the mounting base plate and the thermal power adjustment lever, and the mounting base is used in the range of rotation of the thermal power adjustment lever. 2. The gas amount adjusting device according to claim 1, wherein the gas amount adjusting device is a supporting means for supporting a heating power adjusting lever on the plate.

The rotation preventing piece formed on one of the mounting base plate and the heating power adjusting lever is hooked with the hooking piece formed on the other to restrict the use rotation range of the heating power adjusting lever to engage the support means. 2. The gas amount adjusting device according to claim 1, wherein the gas amount adjusting device is a connecting means for connecting the mounting base plate and the heating power adjusting lever so as not to separate each other.

At the joint between the mounting base plate and the thermal power adjustment lever, the support shaft is fitted into the shaft hole when the thermal power adjustment lever is not used, and the thermal power adjustment lever is rotated and displaced to the usage position to engage and support the engagement support groove. The heating power adjusting lever is supported on the mounting base plate by engaging the pieces, and the mounting base plate and the thermal power adjusting lever are assembled by being deformed so that the hooking piece is hooked on the rotation preventing piece at the use position. 4. The gas amount adjusting device according to 4.

The gas amount adjusting device according to claim 1, further comprising a protrusion that reduces frictional resistance and prevents rattling at either one of the joint between the mounting base plate and the heating power adjusting lever.

The gas amount adjusting device according to claim 1, wherein a buffer member for preventing rattling is interposed at a joint portion between the mounting base plate and the heating power adjusting lever.