JP3678954B2 - Gas cock - Google Patents

Gas cock Download PDF

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Publication number
JP3678954B2
JP3678954B2 JP27398899A JP27398899A JP3678954B2 JP 3678954 B2 JP3678954 B2 JP 3678954B2 JP 27398899 A JP27398899 A JP 27398899A JP 27398899 A JP27398899 A JP 27398899A JP 3678954 B2 JP3678954 B2 JP 3678954B2
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Japan
Prior art keywords
cam plate
operation shaft
ignition
lever
rotation operation
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JP27398899A
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JP2001099422A (en
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圭一 水谷
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Rinnai Corp
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Rinnai Corp
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Priority to JP27398899A priority Critical patent/JP3678954B2/en
Priority to TW089113419A priority patent/TW480323B/en
Priority to KR10-2000-0051014A priority patent/KR100376819B1/en
Priority to CNB001317164A priority patent/CN1234997C/en
Publication of JP2001099422A publication Critical patent/JP2001099422A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • F16K5/0235—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with the angle the spindle makes housing being other than 90 degrees
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52458—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a tap or cock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Taps Or Cocks (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、回動操作軸を回動することによりガスバーナへ供給されるガス量を調節し火力調節を行うガスコックであって、回動操作途中に設定した点火位置でガスバーナに点火した後、点火位置を越えて更に回動操作軸を追い込み回動操作するガスコックに関する。
【０００２】
【従来の技術】
従来のこの種のガスコックとして、例えば実公平４−２４３１０号公報により、閉弁位置を０度として、１１５度の位置に設定された点火位置まで回動操作軸を回動してガスバーナに点火を行い、回動操作軸を一旦９５度の位置の全開位置まで戻した後、１５０度の位置に設定したとろ火位置と４５度の位置に設定した弱位置との間で火力調節を行うようにしたものが知られている。該公報記載のガスコックではバーナの炎によって加熱される熱電対の熱起電力によって吸着保持される安全弁が内蔵されている。従って、点火位置では回動操作軸の軸先方向に沿って往復移動するロッドを回動操作軸の回動操作に連動して移動させ、炎の状態が安定するまでロッドで安全弁を強制的に開弁状態に保持している。点火位置を越えて追い込み回動操作し得るタイプのガスコックでは点火位置でバーナに点火を行うとその後の追い込み回動操作時に再びロッドが安全弁を強制的に開弁しないように、回転操作軸に対する回動力を解除するとロッドを安全弁から離れる方向に待避させるように構成されている。
【０００３】
【発明が解決しようとする課題】
上記公報に記載のガスコックでは回動操作軸の軸線に沿ってロッドが配設され、更に安全弁は回動操作軸の軸線上に位置するように取り付けられている。このタイプのガスコックでは回動操作軸の軸線方向の長さが長くなるため、ロッドを回動操作軸の軸線に対して直角方向に往復移動させるように構成したガスコックがある。このものでは回動操作軸と共に回動するカムと、略中央部分で枢支されたレバーとを備え、回動操作軸を点火位置まで回動するとカムがレバーの一端を押してレバーを揺動させ、レバーの他端でロッドを押し込むように構成されている。そのためこのような回動操作軸の軸線に対して直角方向に往復移動自在のロッドを備えたタイプのガスコックに上記公報に記載された機構を適用することができない。
【０００４】
そこで本発明は、上記の問題点に鑑み、回動操作軸の軸線に対して直角方向に往復移動するロッドを備えていても追い込み操作することのできるガスコックを提供することを課題とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するために本発明は、火力調節用の回動操作軸と共に回動するカム板と、回動操作軸を閉弁位置から点火位置まで回動させた際にカム板に押されて揺動するレバー部と、該レバー部の揺動によって回動操作軸の軸線に対して直角方向に押し込まれるロッドとを備え、該ロッドの先端で安全弁を強制的に開弁するガスコックにおいて、回動操作軸の火力調節範囲の中間に上記点火位置を設定すると共に、上記カム板を回動軸線に沿って、レバー部に係合する点火可能状態とレバー部に係合しない非点火状態との間で往復自在に形成し、回動操作軸を閉弁位置から点火位置まで回動する際にカム板を点火可能状態に保持すると共に回動操作軸に対する回動操作力を解除することによりカム板を非点火状態に移動させるカム板移動機構を設け、上記回動操作力を解除したとき、回動操作軸は軸線方向に移動せず、カム板移動機構によってカム板は軸線方向に移動した非点火状態にあり、この状態で回動操作軸を回動操作してもカム板がレバー部に当接しないことを特徴とする。
【０００６】
回動操作軸を閉弁位置から点火位置まで回動操作すると、カム板は点火可能状態にあるためカム板がレバー部を押すことによりレバー部が揺動しロッドが押し込まれ安全弁が開弁される。点火操作が完了すると回動操作軸に作用させていた回動操作力を解除するため、カム板はカム板移動機構の働きにより非点火状態に移動する。すると、カム板はレバー部に係合しなくなるので追い込み操作を行っても火力調節中に再びロッドが押し込まれることはない。
【０００７】
ところで、レバー部を１枚のレバー部材で構成すると回動操作力がレバー部からロッドを介してそのまま安全弁に伝達される。回動操作力が大きいとロッドの先端が安全弁を強く押すことになる。その状態で急にカム板が非点火状態に移動するとロッドから安全弁に作用していた力が急激に解除されスプリングバックや衝撃のため安全弁が閉弁するおそれがある。その場合には、上記レバー部は、カム板に当接する第１のレバー部材とロッドに当接する第２のレバー部材とを備え、かつ、ロッドを押し込む際に第１のレバーから第２のレバーに対して所定の大きさ以上の力が作用することを制限する制限機構を有するようにすればよい。このように構成することにより、カム板から第１のレバー部材に大きな力が作用しても制限機構により第１のレバー部材から第２のレバー部材に対しては所定の大きさ以上の力が作用しない。
【０００８】
【発明の実施の形態】
図１を参照して、１はガスコックであり、回動操作軸１１を回動操作することにより図外のバーナに送られるガスが増減制御され火力調節することができる。回動操作軸１１には水平なピン１２が係合し、該ピン１２によってカム板２が回動する。該カム板２の近傍には基板１３に対して揺動自在に第１レバー部材３と第２レバー部材４とが取り付けられている。第１レバー部材３は基板１３の上面に接し、第２レバー部材４は基板１３の下面に接するように配設され、枢軸１４によって基板１３に揺動自在に取り付けられている。また、枢軸１４にはトーションばね５が取り付けられている。該トーションばね５の長腕５１は第１レバー部材３の縦爪３１に係合し、短腕５２は第２レバー部材４の縦爪４１に係合している。従って、トーションばね５の付勢力により第２レバー部材４の縦爪４１は第１レバー部材３の尾端部３４に所定の大きさの付勢力で応接される。カム板２が回動して第１レバー部材３のパッド部３３がカム板２によって押されると、第１レバー部材３は揺動する。第２レバー部材４はトーションばね５の付勢力によって第１レバー部材３に追従し第２レバー部材４のパッド部４２がロッド１５を押し込む。該ロッド１５は回動操作軸１１の回動軸線に対して直角方向に進退自在に保持されており、該ロッド１５がガスコック１内に押し込まれると、ガスコック１に内蔵されている図示しない電磁安全弁が強制的に開弁される。尚、６は点火用のスパーカーを作動させるための点火スイッチである。
【０００９】
図２を参照して、０度である閉弁位置（止）から１１５度の位置に設定されている点火位置（点火）まで回動操作軸１１を一気に回動すると回動操作軸１１は点火位置でそれ以上の回動が禁止されると共に点火スイッチ６がオンされて図示しないガスバーナに点火が行われる。点火が完了すると回動操作軸１１から手を離すことにより、回動操作軸１１は自動的に９５度の位置に設定されている全開位置（全開）まで自動的に一旦戻る。その後は点火位置を越えて１５０度の位置に設定されているとろ火位置（とろ火）まで回動操作軸１１を回動させることができ、該とろ火位置と４５度の位置に設定した弱火位置（弱）との間で自在に火力調節を行うことができる。そして、調理終了後は回動操作軸１１を閉弁位置にまで戻す。
【００１０】
図３を参照して、カム板２にはカム板２を上方から覆う爪板１０の爪１０ａ・１０ｂに対して各々対応する斜面２１ａ・２１ｂが形成されている。また、斜面２１ｂの近傍には外側に張り出すカム部２２が形成されており、第１レバー部材３のパッド部３３に該カム部２２が当接する。また、上記ピン１２が挿入される一対の縦溝２３が形成されている。縦溝２３内には回動操作軸１１を閉弁位置から点火位置まで回動操作する際ピン１２が当接する斜面２４が形成されている。また、カム部２２を挟んで、閉弁位置における位置決めを行う基準端面２５と、点火位置及びとろ火位置における位置決めを行う基準端面２６とが形成されている。
【００１１】
図４及び図６を参照して、閉弁位置では爪板１０の爪１０ａ・１０ｂは共にカム板２の上面に当接している。従って、カム板２を上方に付勢するばね２ａの付勢力によってもカム板２は上方に移動することはない。回動操作軸１１を点火位置に向かって回動するとカム板２は回動し、両斜面２１ａ・２１ｂは共に爪１０ａ・１０ｂの下方に移動する。すると爪１０ａ・１０ｂの下端はカム板２の上面から離れるが、縦溝２３内のピン１２は斜面２４に押しつけられ斜面２４にピン１２が係合した状態になっている。このため、カム板２はばね２ａによって押し上げられることなく回動し続ける。回動操作軸１１を点火位置まで回動すると上記基準端面２６がストッパリング８のストッパ部８１に当接してそれ以上回動できなくなると共にロッド１５が押し込まれ安全弁が強制的に開弁され、更に点火スイッチ６がオンされる。この時ロッド１５は安全弁を開ききる位置まで押し込まれると安全弁が邪魔となってそれ以上押し込めなくなる。ところが回動操作軸１１は組み付け誤差や加工誤差等によりロッド１５がそれ以上押し込めない状態になっても更に第１レバー部材３を揺動させる方向に回動することができる場合がある。ロッド１５には第２レバー部材４のパッド部４２が当接しているのでロッド１５がそれ以上押し込めなくなると第２レバー部材４はそれ以上揺動できなくなる。更に第１レバー部材３を揺動させると、図７に示すように、トーションばね５の付勢力にうち勝って第１レバー部材３のみが揺動し縦爪４１は尾端部３４から離れる。バーナに点火されたことを確認して回動操作軸１１から手を離すと、図５に示すように、ピン１２が斜面２４から外れながら回動操作軸１１が全開位置まで戻る。その際カム板２はピン１２との係合が解除されるためばね２ａの付勢力により上方に押し上げられ、カム部２２は第１レバー部材３のパッド部３３に当接しない非点火状態になる。また、第２レバー部材４はロッド１５によって押し戻されるが、ロッド１５にはトーションばね５によって制限された応力以上の力が作用しないので回動操作軸１１に対する操作力を急に解除しても、解除時のショックが大きくならず、従って解除時のショックで安全弁が閉弁してしまうという不具合を回避することができる。このあとは図８に示したようにカム部２２が第１レバー部材３のパッド部３３に当接しないので、回動操作軸１１をとろ火位置と弱位置との間で自由に回動操作することができ、その際回動操作軸１１が点火位置を通過しても点火スイッチ６がオンされることはなく、かつロッド１５が押し込まれることはない。そして、弱位置から回動操作軸１１を閉弁位置に戻す際には爪板１０の両爪１０ａ・１０ｂが斜面２１ａ・２１ｂを押し、カム板２を当初の点火可能状態まで押し下げる。
【００１２】
ところで、上記実施の形態では全開状態で点火を行い、点火後更に追い込み回動操作することにより火力がとろ火まで減少するようにしたが、例えば図９に示すように、中火状態で点火を行い更に追い込み回動操作をすることにより全開状態になるように構成してもよい。近年最大燃焼量が大きなハイカロリーのガスバーナの使用が増加しているが、ハイカロリーのガスバーナでは中火状態でも十分に点火を行うことができると共に、全開状態で点火を行うと点火音が強くなり、あるいは調理鍋から炎が溢れて使用者が驚くからである。
【００１３】
【発明の効果】
以上の説明から明らかなように、本発明は、回動操作軸の軸線に対して直角方向に往復移動するロッドを備えているタイプのガスコックにおいても点火位置を越えて追い込み回動操作することのできる。また、点火完了後急に回動操作軸から手を離しても、安全弁を強制的に開弁させるロッドに一定以上の力が作用していないのでショックで安全弁が閉弁してしまうという不具合がない。
【図面の簡単な説明】
【図１】本発明の一実施の形態の構成を示す図
【図２】回動操作軸の回動範囲を示す図
【図３】カム板の形状を示す斜視図
【図４】点火可能状態にあるカム板を示す図
【図５】非点火状態にあるカム板を示す図
【図６】閉弁位置での平面図
【図７】点火位置での平面図
【図８】追い込み操作時の平面図
【図９】回動操作軸の他の回動範囲を示す図
【符号の説明】
１ ガスコック
２ カム板
３ 第１レバー部材
４ 第２レバー部材
５ トーションばね
６ 点火スイッチ
１１ 回動操作軸
１５ ロッド[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas cock that adjusts the amount of gas supplied to a gas burner by rotating a rotation operation shaft and adjusts the heating power, and ignites the gas burner after igniting the gas burner at an ignition position set during the rotation operation. The present invention relates to a gas cock that further drives the turning operation shaft beyond the position and performs the turning operation.
[0002]
[Prior art]
As a conventional gas cock of this type, for example, according to Japanese Utility Model Publication No. 4-24310, the valve closing position is set to 0 degree, and the rotating operation shaft is rotated to the ignition position set to a position of 115 degrees to ignite the gas burner. After turning the rotating operation shaft to the fully open position at 95 degrees, the heating power is adjusted between the low fire position set at 150 degrees and the weak position set at 45 degrees. Things are known. The gas cock described in the publication has a built-in safety valve that is adsorbed and held by the thermoelectromotive force of a thermocouple heated by a burner flame. Therefore, at the ignition position, the rod that reciprocates along the direction of the axis of the rotation operation shaft is moved in conjunction with the rotation operation of the rotation operation shaft, and the safety valve is forced by the rod until the flame condition is stabilized. The valve is kept open. In the type of gas cock that can be driven and rotated beyond the ignition position, when the burner is ignited at the ignition position, the rod does not force the safety valve to open again during the subsequent rotation operation. When power is released, the rod is retracted in a direction away from the safety valve.
[0003]
[Problems to be solved by the invention]
In the gas cock described in the above publication, a rod is disposed along the axis of the rotation operation shaft, and the safety valve is attached so as to be positioned on the axis of the rotation operation shaft. In this type of gas cock, there is a gas cock configured to reciprocate in the direction perpendicular to the axis of the rotation operation shaft because the length of the rotation operation shaft in the axial direction becomes long. This is provided with a cam that rotates together with the rotation operation shaft, and a lever that is pivotally supported at a substantially central portion. When the rotation operation shaft is rotated to the ignition position, the cam pushes one end of the lever and swings the lever. The rod is pushed at the other end of the lever. Therefore, the mechanism described in the above publication cannot be applied to the type of gas cock provided with a rod that can reciprocate in a direction perpendicular to the axis of the rotation operation shaft.
[0004]
In view of the above problems, an object of the present invention is to provide a gas cock that can be driven in even if it includes a rod that reciprocates in a direction perpendicular to the axis of the rotation operation shaft.
[0005]
[Means for Solving the Problems]
The present invention in order to solve the above problems, a cam plate for rotation with rotation operating shaft for thermal power adjusting, pushed by the cam plate when the rotates the rotating operating shaft to the ignition position from the closed position A gas cock that forcibly opens a safety valve at the tip of the rod, and a lever portion that swings and a rod that is pushed in a direction perpendicular to the axis of the rotation operation shaft by swinging the lever portion, sets the intermediate to the ignition position of thermal adjustment range of the rotary operation shaft along the cam plate rotating axis, and a non-ignition state not engaged with ignitable state and a lever portion that engages the lever The cam plate is held in an ignitable state and the rotational operation force on the rotational operation shaft is released when the rotational operation shaft is rotated from the closed position to the ignition position. Cam plate moving machine that moves cam plate to non-ignition state The provided, when releasing the rotational operation force, the rotational operation shaft is not moved axially, in a non-ignition state cam plate which moves in the axial direction by the cam plate moving mechanism, the rotational operation in this state The cam plate does not contact the lever portion even when the shaft is rotated .
[0006]
When the pivoting operation shaft is pivoted from the valve closing position to the ignition position, the cam plate is in an ignitable state, so when the cam plate pushes the lever portion, the lever portion swings and the rod is pushed in to open the safety valve. The When the ignition operation is completed, the cam plate is moved to the non-ignition state by the action of the cam plate moving mechanism in order to release the rotary operation force applied to the rotary operation shaft. Then, since the cam plate is not engaged with the lever portion, the rod is not pushed again during the heating power adjustment even if the driving operation is performed.
[0007]
By the way, when the lever portion is constituted by a single lever member, the rotational operation force is transmitted from the lever portion to the safety valve as it is via the rod. When the turning operation force is large, the tip of the rod strongly presses the safety valve. If the cam plate suddenly moves to the non-ignition state in this state, the force acting on the safety valve from the rod is suddenly released, and the safety valve may be closed due to springback or impact. In this case, the lever portion includes a first lever member that abuts on the cam plate and a second lever member that abuts on the rod, and when the rod is pushed in, the lever moves from the first lever to the second lever. It is only necessary to provide a limiting mechanism that limits the action of a force of a predetermined magnitude or more. With this configuration, even if a large force is applied to the first lever member from the cam plate, a force greater than a predetermined magnitude is applied from the first lever member to the second lever member by the limiting mechanism. Does not work.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, reference numeral 1 denotes a gas cock. By turning the turning operation shaft 11, the gas sent to the burner (not shown) is controlled to increase or decrease to adjust the heating power. A horizontal pin 12 is engaged with the rotation operation shaft 11, and the cam plate 2 is rotated by the pin 12. A first lever member 3 and a second lever member 4 are attached in the vicinity of the cam plate 2 so as to be swingable with respect to the substrate 13. The first lever member 3 is in contact with the upper surface of the substrate 13, and the second lever member 4 is disposed in contact with the lower surface of the substrate 13, and is pivotally attached to the substrate 13 by the pivot 14. A torsion spring 5 is attached to the pivot 14. The long arm 51 of the torsion spring 5 is engaged with the vertical claw 31 of the first lever member 3, and the short arm 52 is engaged with the vertical claw 41 of the second lever member 4. Therefore, the vertical pawl 41 of the second lever member 4 is brought into contact with the tail end portion 34 of the first lever member 3 by a biasing force of a predetermined magnitude by the biasing force of the torsion spring 5. When the cam plate 2 rotates and the pad portion 33 of the first lever member 3 is pushed by the cam plate 2, the first lever member 3 swings. The second lever member 4 follows the first lever member 3 by the urging force of the torsion spring 5, and the pad portion 42 of the second lever member 4 pushes the rod 15. The rod 15 is held so as to be able to advance and retract in a direction perpendicular to the rotation axis of the rotation operation shaft 11. When the rod 15 is pushed into the gas cock 1, an electromagnetic safety valve (not shown) incorporated in the gas cock 1. Is forcibly opened. Reference numeral 6 denotes an ignition switch for operating a sparker for ignition.
[0009]
Referring to FIG. 2, when the rotation operation shaft 11 is rotated at a stroke from the valve closing position (stop) of 0 degrees to the ignition position (ignition) set at 115 degrees, the rotation operation shaft 11 is ignited. Further rotation at the position is prohibited and the ignition switch 6 is turned on to ignite a gas burner (not shown). When ignition is completed, the rotary operation shaft 11 is automatically returned to the fully open position (fully open) that is automatically set at a position of 95 degrees by releasing the hand from the rotary operation shaft 11. After that, when the position is set to 150 degrees beyond the ignition position, the rotation operation shaft 11 can be rotated to the fire position (fire), and the low fire position (weak) set to the fire position and the 45 degrees position. ) Can be adjusted freely. And after completion | finish of cooking, the rotating operation axis | shaft 11 is returned to a valve closing position.
[0010]
Referring to FIG. 3, the cam plate 2 is formed with slopes 21a and 21b corresponding to the claws 10a and 10b of the claw plate 10 covering the cam plate 2 from above. Further, a cam portion 22 that projects outward is formed in the vicinity of the inclined surface 21 b, and the cam portion 22 contacts the pad portion 33 of the first lever member 3. A pair of vertical grooves 23 into which the pins 12 are inserted are formed. In the vertical groove 23, a slope 24 is formed on which the pin 12 comes into contact when the rotation operation shaft 11 is rotated from the valve closing position to the ignition position. In addition, a reference end face 25 for positioning at the valve closing position and a reference end face 26 for positioning at the ignition position and the flashing position are formed across the cam portion 22.
[0011]
4 and 6, both the claws 10a and 10b of the claw plate 10 are in contact with the upper surface of the cam plate 2 in the valve closing position. Therefore, the cam plate 2 does not move upward even by the biasing force of the spring 2a that biases the cam plate 2 upward. When the rotation operation shaft 11 is rotated toward the ignition position, the cam plate 2 is rotated, and both the slopes 21a and 21b are moved below the claws 10a and 10b. Then, the lower ends of the claws 10a and 10b are separated from the upper surface of the cam plate 2, but the pin 12 in the longitudinal groove 23 is pressed against the inclined surface 24 and the pin 12 is engaged with the inclined surface 24. For this reason, the cam plate 2 continues to rotate without being pushed up by the spring 2a. When the rotation operation shaft 11 is rotated to the ignition position, the reference end face 26 abuts against the stopper portion 81 of the stopper ring 8 and cannot be rotated any more, and the rod 15 is pushed in to forcibly open the safety valve. The ignition switch 6 is turned on. At this time, if the rod 15 is pushed to a position where the safety valve can be fully opened, the safety valve becomes an obstacle and cannot be pushed any further. However, the rotation operation shaft 11 may be able to further rotate in the direction in which the first lever member 3 is swung even if the rod 15 cannot be pushed any further due to an assembly error or a processing error. Since the pad portion 42 of the second lever member 4 is in contact with the rod 15, the second lever member 4 can no longer swing when the rod 15 cannot be pushed any further. When the first lever member 3 is further swung, as shown in FIG. 7, only the first lever member 3 is swung over the urging force of the torsion spring 5, and the vertical pawl 41 is separated from the tail end portion 34. When it is confirmed that the burner has been ignited and the hand is released from the rotation operation shaft 11, the rotation operation shaft 11 returns to the fully open position while the pin 12 is detached from the inclined surface 24 as shown in FIG. At this time, the cam plate 2 is disengaged from the pin 12 and is pushed upward by the biasing force of the spring 2a, so that the cam portion 22 is in a non-ignition state where it does not contact the pad portion 33 of the first lever member 3. . Further, the second lever member 4 is pushed back by the rod 15, but since the force exceeding the stress limited by the torsion spring 5 does not act on the rod 15, even if the operating force on the rotating operation shaft 11 is suddenly released, Therefore, it is possible to avoid the problem that the safety valve is closed by the shock at the time of release, and the shock at the time of release is not increased. Thereafter, as shown in FIG. 8 , the cam portion 22 does not contact the pad portion 33 of the first lever member 3, so that the rotation operation shaft 11 is freely rotated between the melting position and the weak position. In this case, even if the rotation operating shaft 11 passes through the ignition position, the ignition switch 6 is not turned on, and the rod 15 is not pushed in. Then, when the rotating operation shaft 11 is returned from the weak position to the valve closing position, the claws 10a and 10b of the claw plate 10 push the inclined surfaces 21a and 21b, and push the cam plate 2 down to the initial ignitable state.
[0012]
By the way, in the above embodiment, ignition is performed in the fully open state, and further, after the ignition, further driving and turning operation is performed so that the thermal power is reduced to the melting fire. For example, as shown in FIG. Further, it may be configured to be in a fully open state by performing a driving rotation operation. In recent years, the use of high-calorie gas burners with a large maximum combustion amount has increased, but high-calorie gas burners can ignite sufficiently even in medium-fire conditions, and the ignition sound becomes stronger when ignited in a fully-open condition. Or because the fire overflows from the cooking pot and the user is surprised.
[0013]
【The invention's effect】
As is apparent from the above description, the present invention is capable of performing a turning rotation operation beyond the ignition position even in a gas cock having a rod that reciprocates in a direction perpendicular to the axis of the rotation operation shaft. it can. In addition, even if you release your hand from the rotating operation shaft suddenly after ignition is complete, there is a problem that the safety valve closes due to a shock because a force exceeding a certain level does not act on the rod that forcibly opens the safety valve. Absent.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of an embodiment of the present invention. FIG. 2 is a diagram showing a rotation range of a rotation operation shaft. FIG. 3 is a perspective view showing a shape of a cam plate. Fig. 5 shows the cam plate in a non-ignition state. Fig. 6 shows a plan view at the valve closing position. Fig. 7 shows a plan view at the ignition position. Plan view [Fig. 9] Diagram showing another rotation range of the rotation operation shaft [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Gas cock 2 Cam board 3 1st lever member 4 2nd lever member 5 Torsion spring 6 Ignition switch 11 Rotation operation shaft 15 Rod

Claims (2)

火力調節用の回動操作軸と共に回動するカム板と、回動操作軸を閉弁位置から点火位置まで回動させた際にカム板に押されて揺動するレバー部と、該レバー部の揺動によって回動操作軸の軸線に対して直角方向に押し込まれるロッドとを備え、該ロッドの先端で安全弁を強制的に開弁するガスコックにおいて、回動操作軸の火力調節範囲の中間に上記点火位置を設定すると共に、上記カム板を回動軸線に沿って、レバー部に係合する点火可能状態とレバー部に係合しない非点火状態との間で往復自在に形成し、回動操作軸を閉弁位置から点火位置まで回動する際にカム板を点火可能状態に保持すると共に回動操作軸に対する回動操作力を解除することによりカム板を非点火状態に移動させるカム板移動機構を設け、上記回動操作力を解除したとき、回動操作軸は軸線方向に移動せず、カム板移動機構によってカム板は軸線方向に移動した非点火状態にあり、この状態で回動操作軸を回動操作してもカム板がレバー部に当接しないことを特徴とするガスコック。A cam plate for rotation with rotation operating shaft for thermal regulation, and a lever unit for pushed and swung cam plate when the rotates the rotating operating shaft to the ignition position from the closed position, the lever portion In the gas cock that forcibly opens the safety valve at the tip of the rod, in the middle of the heating power adjustment range of the rotation operation shaft with setting the ignition position, along the cam plate rotating axis, reciprocating freely formed between the non-ignition state not engaged with ignitable state and a lever portion that engages the lever, rotation A cam plate that holds the cam plate in an ignitable state when the operation shaft is rotated from the valve closing position to the ignition position and moves the cam plate to a non-ignition state by releasing the rotation operation force on the rotation operation shaft. the moving mechanism is provided, and releasing the rotation operation force The rotating operation shaft does not move in the axial direction, and the cam plate is moved in the axial direction by the cam plate moving mechanism and is in a non-ignition state. Even if the rotating operation shaft is rotated in this state, the cam plate does not move. A gas cock characterized by not contacting the lever part . 上記レバー部は、カム板に当接する第１のレバー部材とロッドに当接する第２のレバー部材とを備え、かつ、ロッドを押し込む際に第１のレバーから第２のレバーに対して所定の大きさ以上の力が作用することを制限する制限機構を有することを特徴とする請求項１記載のガスコック。The lever portion includes a first lever member that comes into contact with the cam plate and a second lever member that comes into contact with the rod. The gas cock according to claim 1, further comprising a restriction mechanism that restricts the application of a force larger than the magnitude.
JP27398899A 1999-09-28 1999-09-28 Gas cock Expired - Fee Related JP3678954B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP27398899A JP3678954B2 (en) 1999-09-28 1999-09-28 Gas cock
TW089113419A TW480323B (en) 1999-09-28 2000-07-06 Gas cock
KR10-2000-0051014A KR100376819B1 (en) 1999-09-28 2000-08-31 A gas cock
CNB001317164A CN1234997C (en) 1999-09-28 2000-09-27 Gas valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27398899A JP3678954B2 (en) 1999-09-28 1999-09-28 Gas cock

Publications (2)

Publication Number Publication Date
JP2001099422A JP2001099422A (en) 2001-04-13
JP3678954B2 true JP3678954B2 (en) 2005-08-03

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JP27398899A Expired - Fee Related JP3678954B2 (en) 1999-09-28 1999-09-28 Gas cock

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JP (1) JP3678954B2 (en)
KR (1) KR100376819B1 (en)
CN (1) CN1234997C (en)
TW (1) TW480323B (en)

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JP4536035B2 (en) * 2006-06-12 2010-09-01 リンナイ株式会社 Thermal power control device
JP5208235B2 (en) * 2011-03-01 2013-06-12 リンナイ株式会社 Gas stove device
KR101405134B1 (en) * 2013-03-28 2014-06-10 린나이코리아 주식회사 Gas valve for cook-top type gas burner
TWI571601B (en) * 2014-05-07 2017-02-21 Rinnai Kk Gas cocks (c)
TWI576543B (en) * 2014-05-07 2017-04-01 Rinnai Kk Gas cocks (a)
CN105299309B (en) * 2014-06-13 2019-02-12 林内株式会社 Gas cock
CN106195417B (en) * 2016-08-05 2018-08-07 宁波方太厨具有限公司 A kind of gas stove valve
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KR200490617Y1 (en) 2018-02-12 2019-12-09 (주)이에스 Cover with hole of convector for Heating and Cooling Device, and Assembly with the cover
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Publication number Priority date Publication date Assignee Title
JP2008089145A (en) * 2006-10-04 2008-04-17 Harman Pro:Kk Rotation operative gas equipment cock

Also Published As

Publication number Publication date
TW480323B (en) 2002-03-21
KR100376819B1 (en) 2003-03-19
JP2001099422A (en) 2001-04-13
CN1234997C (en) 2006-01-04
CN1289907A (en) 2001-04-04
KR20010050286A (en) 2001-06-15

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