JP5164186B2

JP5164186B2 - Gas writer

Info

Publication number: JP5164186B2
Application number: JP2010181241A
Authority: JP
Inventors: 川隆昭瀬
Original assignee: 株式会社サロメ
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2013-03-13
Anticipated expiration: 2030-08-13
Also published as: JP2012042066A

Description

本発明は、手持ちガスライタに関し、特に、人（例えば子供）が着火操作子を安易にいじることによるガス燃焼炎の発生を防止する機構を備える、いわゆる安全ガスライタ、に関する。本発明は、紙巻タバコ，葉巻などに火をつけるガスライタ（ポケットライタ）および燭台，薪，焚火の火付け材等に火をつけるガスライタ（着火具）に実施することができる。 The present invention relates to a hand-held gas writer, and more particularly to a so-called safety gas writer including a mechanism that prevents a gas combustion flame from being generated when a person (for example, a child) easily manipulates an ignition operation element. The present invention can be implemented in a gas writer (pocket writer) that ignites cigarettes, cigars, and the like, and a gas writer (ignition tool) that ignites candlesticks, firewood, ignitable materials, and the like.

この種のガスライタの着火操作子は多様である。例えば着火操作子が、フリント発火機構周りあるいは放電火花により燃料ガスを点火する電極周りを覆うケース蓋の場合は、人がこのケース蓋を開くことにより、まずガス放出レバーが弁開方向に駆動されて燃料タンクのガス放出弁が開き、そしてフリント火花または電気火花（スパーク）がガスを点火する。また、着火操作子が押ボタン又はスライドボタンの場合は、人がこの押ボタンを押し下げる又は横スライドすることにより、ガス放出レバーが弁開方向に駆動されて燃料タンクのガス放出弁が開き、そして電気火花がガスを点火する（例えば特許文献１）。 There are various ignition operators for this type of gas writer. For example, when the ignition control is a case lid that covers the flint ignition mechanism or the electrode that ignites the fuel gas by the discharge spark, the gas release lever is first driven in the valve opening direction by a person opening the case lid. The gas release valve of the fuel tank opens and a flint spark or an electric spark (spark) ignites the gas. Also, when the ignition operation element is a push button or a slide button, when a person pushes down or slides the push button, the gas release lever is driven in the valve opening direction to open the gas release valve of the fuel tank, and An electric spark ignites gas (for example, Patent Document 1).

特開２００４−１１６８４９号公報JP 2004-116849 A

幼児あるいは年少者が、父親など身近な人のガスライタ使用を真似してガスライタをいじって、思わぬガス燃焼炎の発生により、やけどをしあるいは火災を発生することがある。このような事故を防ぐために、着火操作子が単純操作では着火移動しないように、ロック機構を設けることが推奨されている。特許文献１のガスライタは、押ボタンロック機構を備えて、押ボタンを横スライド（アンロック操作）することにより押ボタンをアンロック位置にしてからでないと、着火のための押下（着火操作）ができないようにしている。すなわち、縦押し込みにより圧電ユニットの摺動子を押し下げるとともに弁操作レバーの自由端を押し下げる着火操作子に、横方向に摺動可能なロックスライダ（押しボタン）を備える。ロックスライダを右駆動するとライタ本体側の突起からロックスライダが外れて降下可となり、ロックスライダを押し下げると着火操作子が押し下げられて、ノズルから燃料ガスが噴出し圧電ユニットが高電圧を発生しこれによって発生するスパークによって燃料ガスが着火する。 An infant or a young person may imitate the use of a gas writer by a familiar person such as a father and mess with the gas writer, and may cause a burn or fire due to an unexpected gas combustion flame. In order to prevent such an accident, it is recommended to provide a lock mechanism so that the ignition operator does not move by simple operation. The gas writer of Patent Document 1 includes a push button lock mechanism, and the push button is set to the unlocked position by horizontally sliding the push button (unlock operation). I can't do it. In other words, the ignition operation element that pushes down the slider of the piezoelectric unit and pushes down the free end of the valve operation lever by vertical pushing is provided with a lock slider (push button) that can slide in the lateral direction. When the lock slider is driven to the right, the lock slider is released from the protrusion on the writer body side and can be lowered, and when the lock slider is pushed down, the ignition control is pushed down, fuel gas is ejected from the nozzle, and the piezoelectric unit generates a high voltage. The fuel gas is ignited by the spark generated by.

ところで、特許文献１の押ボタンロック機構はロックスライダを右駆動することによりロックが外れ続いて押し下げることにより炎を生じる。すなわちロックスライダの横右方向駆動と縦方向押下により炎を発生することができる。ロック解除のための駆動と炎を発生するための駆動が直交方向である。したがってこの押ボタンロック機構を、回動蓋の時計方向の回動によって圧電ユニットの摺動子を押し下げるとともに弁操作レバーの自由端を押し下げるガスライタに適用しようとしても、回動が横右方向移動と縦方向移動を含むのでロックスライダは回動操作によりロック解除となり、着火操作（回動駆動）に対してロック機能が脆弱になる。 By the way, the push-button lock mechanism of Patent Document 1 generates a flame when the lock slider is released by being driven to the right and subsequently pressed down. That is, a flame can be generated by driving the lock slider in the horizontal direction and pressing down in the vertical direction. The drive for unlocking and the drive for generating a flame are orthogonal. Therefore, even if this pushbutton lock mechanism is applied to a gas writer that pushes down the slider of the piezoelectric unit and pushes down the free end of the valve operating lever by turning the rotary lid clockwise, the rotation is moved horizontally and horizontally. Since the vertical movement is included, the lock slider is unlocked by the rotation operation, and the lock function becomes weak against the ignition operation (rotation drive).

本発明は、回動蓋の回動によって圧電ユニットの摺動子を押し下げるとともに弁操作レバーを駆動するガスライタに、回動ロック機構を備えることを目的とする。 It is an object of the present invention to provide a rotation lock mechanism in a gas writer that pushes down a slider of a piezoelectric unit and drives a valve operation lever by rotating a rotation lid.

（１）ガス放出ノズル(1)に燃料ガスを送気する燃料ガス放出弁を持つ燃料槽と、前記燃料ガス放出弁を開駆動するガス放出レバーと、前記ガス放出ノズル(1)からその上方に出る燃料ガスを点火する圧電ユニット(5)と、指によって回動駆動されて前記ガス放出レバーをガス放出弁を開く方向に駆動し前記圧電ユニット(5)を駆動する回動蓋(6)と、を備えるガスライタにおいて、
使用者が前記回動蓋(6)を開くための力を加える前記回動蓋(6)の指当部の下方に上端(7b)があって前記回動蓋(6)の側面より突出し、下端である係合部(7c)が前記回動蓋(6)で閉じられた本体開口の内方に突出し、前記上端(7b)と前記係合部(7c)との間のピン(7a)を中心に回動するように前記回動蓋(6)に枢着され、前記突出した上端(7b)を使用者が前記回動蓋(6)の指当部の下方に押し込むアンロック操作により前記回動蓋(6)の点火方向の回動とは逆方向にアンロック回動して前記係合部(7c)が前記本体開口から退出するロック部材(7)と、前記アンロック回動の方向とは逆のロック回動方向に前記ロック部材(7)を回動強制する弾力部材(8)と、を備えたことを特徴とするガスライタ。 (1) A fuel tank having a fuel gas release valve for sending fuel gas to the gas release nozzle (1), a gas release lever for opening the fuel gas release valve, and above the gas release nozzle (1) A piezoelectric unit (5) for igniting the fuel gas coming out of the gas, and a rotating lid (6) that is driven by a finger to drive the piezoelectric unit (5) by driving the gas release lever in a direction to open the gas release valve In a gas writer comprising:
There is an upper end (7b) below the fingernail portion of the rotating lid (6) to which a user applies a force to open the rotating lid (6), and protrudes from the side surface of the rotating lid (6), The engaging portion (7c) which is the lower end protrudes inward of the main body opening closed by the rotating lid (6) , and the pin (7a) between the upper end (7b) and the engaging portion (7c) By the unlocking operation in which the user pushes the protruding upper end (7b) below the finger rest of the rotating lid (6). A locking member (7) in which the engaging portion (7c) retreats from the opening of the main body by unlocking and rotating in a direction opposite to the rotation in the ignition direction of the rotating lid (6); and the unlocking rotation A gas writer , comprising: a resilient member (8) forcing the locking member (7) to turn in a lock turning direction opposite to the direction of .

なお、理解を容易にするために括弧内には、図面に示し後述する実施例の対応要素又は相当要素の記号を、例示として参考までに付記した。以下も同様である。 In addition, in order to make an understanding easy, the code | symbol of the corresponding element or the equivalent element of the Example which is shown in drawing and mentions later in parentheses is attached for reference by reference. The same applies to the following.

使用者が、前記ロック部材(7)を、前記弾力部材(8)の回動強制力に抗して、前記回動蓋(6)の点火方向の回動とは逆方向に回動駆動すると、該ロック部材(7)の係合部(7c)が、ロック位置からアンロック位置に変位する（図３）。この状態を維持して回動蓋(6)を点火方向に回動駆動すると、燃料ガス放出弁が開かれ圧電ユニット(5)が駆動される。これにより、ノズル(1)から噴出する燃料ガスが着火し燃焼炎(10)が発生する（図４）。使用者が回動蓋(6)から指を離すと、回動蓋(6)が圧電ユニット内部のコイルばねの反発力で上駆動されて逆方向に回動し本体の上開口を塞ぐ（図１）。 When the user drives the lock member (7) to rotate in a direction opposite to the rotation in the ignition direction of the rotation lid (6) against the rotation forcing force of the elastic member (8). , the engagement portion of the lock member (7) (7c), is displaced to the unlock position from the lock position (FIG. 3). When the rotating lid (6) is driven to rotate in the ignition direction while maintaining this state, the fuel gas release valve is opened and the piezoelectric unit (5) is driven. Thereby, the fuel gas ejected from the nozzle (1) is ignited and a combustion flame (10) is generated (FIG. 4). When the user removes his / her finger from the rotating lid (6), the rotating lid (6) is driven upward by the repulsive force of the coil spring inside the piezoelectric unit and rotates in the opposite direction to close the upper opening of the main body (see FIG. 1).

人（例えば幼児又は年少者）が、ロック部材(7)を回動蓋(6)の点火方向の回動とは逆方向に回動駆動することなく、回動蓋(6)を点火方向に回動駆動しようとしても、ロック部材(7)の係合部(7c)がロック位置にあるので、回動蓋(6)を開くことができない（図２）。すなわちロック部材(8)がロック位置にあるので、回動蓋(6)は回動せず、炎は発生しない。したがって不用意な操作に対する安全性が高い。 A person (for example, an infant or a young person) does not rotate the locking member (7) in the direction opposite to the rotation of the rotating lid (6) in the direction of ignition, and moves the rotating lid (6) in the ignition direction. Even if it is going to rotate, the engaging portion (7c) of the lock member (7) is in the locked position, so that the rotating lid (6) cannot be opened (FIG. 2). That is, since the lock member (8) is in the locked position, the rotating lid (6) does not rotate and no flame is generated. Therefore, safety against careless operation is high.

本発明の１実施例のガスライタの、非使用状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the non-use state of the gas writer of one Example of this invention. 図１に示すガスライタの、ロック部材(7)をロック位置としたまま回動蓋(6)を回動駆動しようとした状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state which tried to rotationally drive the rotation lid | cover (6), with the lock member (7) being a locked position of the gas writer shown in FIG. 図１に示すガスライタの、ロック部材(7)をアンロック位置として回動蓋(6)を回動駆動し始めた状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state which started the rotational drive of the rotation lid | cover (6) by making the lock member (7) into the unlocking position of the gas writer shown in FIG. 図３に示す状態から更に回動蓋(6)を回動駆動して炎１０を発生させた状態を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a state in which a flame 10 is generated by further rotating the rotary lid (6) from the state shown in FIG. 3.

（２）前記ロック部材(7)は、前記回動蓋(6)にピン(7a)を中心に回動可能に保持され、前記弾力部材(8)は一端が回動蓋(6)で他端がロック部材(7)で支えられた圧縮コイルスプリングであってロック部材(7)に回動蓋(6)の点火方向の回動と同方向の反発力を与える、上記（１）に記載のガスライタ。 (2) The lock member (7) is rotatably held around the pin (7a) by the rotating lid (6), and one end of the elastic member (8) is the rotating lid (6). The compression coil spring having an end supported by a lock member (7), and applying a repulsive force in the same direction as the rotation of the rotation lid (6) in the ignition direction to the lock member (7). Gas writer.

（３）前記ロック部材(7)の前記係合部(7c)が前記本体開口の内方に突出したロック位置にあるまま前記回動蓋(6)が点火方向に回動駆動されるときは該係合部(7c)が前記本体開口の縁に当たって該回動を阻止し、前記ロック部材(7)の前記係合部(7c)が前記本体開口の外部に退出したアンロック位置にあるときは前記回動蓋(6)の点火方向の回動が可能である、上記（１）又は（２）に記載のガスライタ。 (3) the time the engagement of the locking member (7) (7c) of the said remains in the locked position protruding inward of the body opening the rotating lid (6) is driven to rotate in the ignition direction When the engaging portion (7c) hits the edge of the main body opening to prevent the rotation, and the engaging portion (7c) of the locking member ( 7 ) is in the unlocked position where it is retracted to the outside of the main body opening. Is a gas writer according to the above (1) or (2), wherein the rotating lid (6) can be rotated in the ignition direction .

本発明の他の目的および特徴は、図面を参照した以下の実施例の説明より明らかになろう。 Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

図１に示す本発明の１実施例のガスライタには、本体ケースのした部分に図示を省略した液化燃料槽があり、その内部には、第１ノズル（図示略）に燃焼ガスを送気する常閉弁である燃料ガス放出弁があり、第１ノズルが上方に引き上げられると、燃料ガス放出弁が弁開となって、液化燃料槽内にある液化燃料の一部が気化して第１ノズルから出る。第１ノズルには、可撓性，弾力性がある絶縁体チューブ９を介して第２ノズル１がつながっている。上枠４および操作子であり回動蓋である上蓋６は、ピン６ａで、液化燃料槽から起立した支幹に、一体に連結されている。第２ノズル１は金属製の上枠４に固定されている。圧電ユニット５の一対の高電圧出力端の一方に上枠４が電気的に接続され、第２ノズル１が、上枠４に固定されているので該高電圧出力端の一方と同電位である。該高電圧出力端の他方に接続した電気リードの先端が放電電極でありノズル１の先端縁に対向している。圧電ユニット５が高電圧を発生すると、放電電極／ノズル１間に電気火花（放電スパーク）が発生する。 The gas writer according to one embodiment of the present invention shown in FIG. 1 has a liquefied fuel tank (not shown) in a portion of the main body case, and the combustion gas is supplied to a first nozzle (not shown) in the inside thereof. There is a fuel gas release valve that is a normally closed valve, and when the first nozzle is pulled upward, the fuel gas release valve is opened, and a part of the liquefied fuel in the liquefied fuel tank is vaporized to be the first. Exit from the nozzle. The second nozzle 1 is connected to the first nozzle through an insulating tube 9 having flexibility and elasticity. The upper frame 4 and the upper lid 6 that is a rotary lid as an operating element are integrally connected to a trunk rising from the liquefied fuel tank by a pin 6a. The second nozzle 1 is fixed to a metal upper frame 4. Since the upper frame 4 is electrically connected to one of the pair of high voltage output ends of the piezoelectric unit 5 and the second nozzle 1 is fixed to the upper frame 4, it has the same potential as one of the high voltage output ends. . The tip of the electrical lead connected to the other of the high voltage output ends is a discharge electrode and faces the tip edge of the nozzle 1. When the piezoelectric unit 5 generates a high voltage, an electric spark (discharge spark) is generated between the discharge electrode / nozzle 1.

当て金１１の下端の降下によって時計回りに回動する図示を省略したガス放出レバーの先端が前述の第１ノズル（図示略）の下端に係合しており、ガス放出レバーの、くの字形の跳ね上がりの尾端を、時計方向に廻すことにより、ガス放出レバーの尾端がてこの原理で回動して、ガス放出レバーの先端が第１ノズルを上方に押し上げ、これにより液化燃料槽内の燃料ガス放出弁が開き、液化燃料槽内の液化燃料が気化して第１ノズル，絶縁体チューブ９および第２ノズル１を通って外気に流出する。 The tip of a gas release lever (not shown) that rotates clockwise by lowering the lower end of the stopper 11 is engaged with the lower end of the first nozzle (not shown), and the gas release lever has a dogleg shape. The tail end of the gas release lever rotates on the lever principle by rotating the tail end of the spring of the valve clockwise, and the tip of the gas release lever pushes the first nozzle upward, thereby causing the inside of the liquefied fuel tank The fuel gas release valve is opened, and the liquefied fuel in the liquefied fuel tank is vaporized and flows out to the outside air through the first nozzle, the insulator tube 9 and the second nozzle 1.

圧電ユニット５の頭部のスライダを上蓋６の支幹６ｄが押し下げると、該スライダを跨いでいるコ字型の当て金１１も同時に押し下げられ、該スライダがある程度降下すると当て金１１がガス放出レバーを時計回りに回動駆動するので、液化燃料槽の燃料ガス放出弁が開いて、第２ノズルからその外部（チューブ９）に燃料ガスが流出する。更にスライダが降下すると、圧電ユニット５内において、圧電素子がプランジャで打撃されて高電圧を発生し、放電電極／ノズル１間に該高電圧が加わって、放電電極／ノズル１間に電気火花が発生し、ノズル１から流出している燃料ガスが該電気火花で点火され、第２ノズル１の上方に、ローソクの炎のような炎（図４の１０）が立ち上がる。 When the support 6d of the upper lid 6 pushes down the slider of the head of the piezoelectric unit 5, the U-shaped metal plate 11 straddling the slider is also pressed down at the same time. Is rotated clockwise, the fuel gas release valve of the liquefied fuel tank is opened, and the fuel gas flows out from the second nozzle to the outside (tube 9). When the slider is further lowered, the piezoelectric element is struck by the plunger in the piezoelectric unit 5 to generate a high voltage, and the high voltage is applied between the discharge electrode / nozzle 1 and an electric spark is generated between the discharge electrode / nozzle 1. The generated fuel gas flowing out of the nozzle 1 is ignited by the electric spark, and a flame like a candle flame (10 in FIG. 4) rises above the second nozzle 1.

上蓋６には、安全機構が装着されている。該安全機構は本実施例では、ロック部材７，圧縮コイルスプリング８および本体にある上枠４に設けたロック係止部４ａで構成されている。ロック部材７は、上蓋６の右端側にピン７ａで回動可能に枢着されその上端７ｂが上蓋６の右側面より外に露出している。圧縮コイルスプリング８の反発力でロック部材７が、上蓋の点火回動方向と同じ時計方向に回動している状態（図１）では、ロック部材７の下端脚である係合部７ｃは、本体の上枠４の上開口縁（斜辺）よりも本体内部側に進入しているロック姿勢であるので、上蓋６の点火のための回動（時計方向）は、係合部７ｃがロック係止部４ａに当たる回動角と止まる（図２）。すなわち阻止される。これがロック状態である（図１，図２）。 A safety mechanism is attached to the upper lid 6. In this embodiment, the safety mechanism includes a lock member 7, a compression coil spring 8, and a lock engaging portion 4a provided on the upper frame 4 in the main body. The lock member 7 is pivotally attached to the right end side of the upper lid 6 by a pin 7 a so that its upper end 7 b is exposed to the outside from the right side surface of the upper lid 6. In a state where the lock member 7 is rotated in the same clockwise direction as the ignition rotation direction of the upper lid by the repulsive force of the compression coil spring 8 (FIG. 1), the engaging portion 7c which is the lower end leg of the lock member 7 is Since the lock posture is such that it enters the inside of the main body with respect to the upper opening edge (slanted side) of the upper frame 4 of the main body, the engaging portion 7c is locked when the upper lid 6 is turned (clockwise) for ignition. The rotation angle hits the stop 4a and stops (FIG. 2). That is, it is blocked. This is the locked state (FIGS. 1 and 2).

ロック状態（図１）で使用者がロック部材７の上端７ｂを上蓋６の内方に押し込むと、すなわちロック部材７を反時計方向に廻すと、これによってロック部材６のロック係合部７ｃが、上枠４の上開口縁（斜辺）よりも上側に退避して（図３）、上蓋６が時計方向に回動可となる。これがアンロック状態である。 When the user pushes the upper end 7b of the lock member 7 inward of the upper lid 6 in the locked state (FIG. 1), that is, when the lock member 7 is turned counterclockwise, the lock engaging portion 7c of the lock member 6 is thereby moved. Then, the upper lid 6 is retracted above the upper opening edge (slanted side) of the upper frame 4 (FIG. 3), and the upper lid 6 can be rotated in the clockwise direction. This is the unlocked state.

使用者が上記アンロック状態で上蓋６を時計方向に回動させると、燃料ガス放出弁が開かれ圧電ユニット５が駆動される。これにより、ノズル１から噴出する燃料ガスが着火して、燃焼炎１０がノズル１の上方に発生する（図４）。使用者が上蓋６から指を離すと、上蓋６が圧電ユニット内部のコイルばねの反発力で上駆動されて反時計方向に回動し本体の上開口を塞ぐ。ロック部材７はロック位置に戻る（図１）。 When the user turns the upper lid 6 clockwise in the unlocked state, the fuel gas release valve is opened and the piezoelectric unit 5 is driven. Thereby, the fuel gas ejected from the nozzle 1 is ignited, and the combustion flame 10 is generated above the nozzle 1 (FIG. 4). When the user removes his / her finger from the upper lid 6, the upper lid 6 is driven upward by the repulsive force of the coil spring inside the piezoelectric unit and rotates counterclockwise to close the upper opening of the main body. The lock member 7 returns to the lock position (FIG. 1).

人例えば幼児又は年少者が、上蓋６を点火方向である時計方向に廻そうとしても、ロック部材７の係合部７ｃが本体のロック係止部４ｃに当たって上蓋６の回動が阻止され、上蓋６は開かない。したがって不用意な操作に対する安全性が高い。 Even if a person such as an infant or a young person tries to rotate the upper lid 6 in the clockwise direction, which is the ignition direction, the engaging portion 7c of the lock member 7 hits the lock engaging portion 4c of the main body and the upper lid 6 is prevented from rotating. 6 does not open. Therefore, safety against careless operation is high.

１：ノズル
４：上枠
５：圧電ユニット
６：上蓋
６ａ：ピン
６ｂ：支幹
６ｃ：ばね受け部
６ｄ：支幹
７：ロック部材
７ａ：ピン
７ｂ：上端
７ｃ：係合部
８：圧縮コイルスプリング
９：チューブ
１０：燃焼ガス炎 1: Nozzle 4: Upper frame 5: Piezoelectric unit 6: Upper lid 6a: Pin 6b: Trunk 6c: Spring receiving portion 6d: Trunk 7: Lock member 7a: Pin 7b: Upper end 7c: Engaging portion 8: Compression coil spring 9: Tube 10: Combustion gas flame

Claims

A fuel tank having a fuel gas release valve for supplying fuel gas to the gas release nozzle, a gas release lever for opening and driving the fuel gas release valve, and a piezoelectric unit for igniting the fuel gas exiting from the gas release nozzle And a rotation lid that is driven to rotate by a finger to drive the gas release lever in a direction to open the gas release valve to drive the piezoelectric unit.
A user applies a force to open the rotating lid , the upper end is below the finger rest portion of the rotating lid, protrudes from the side surface of the rotating lid, and the engaging portion which is the lower end is the rotating lid . It protrudes inward of the closed main body opening, is pivotally attached to the rotating lid so as to rotate around a pin between the upper end and the engaging portion, and the user rotates the protruding upper end with the rotation. A locking member that unlocks and rotates in an opposite direction to the rotation in the ignition direction of the rotating lid by an unlocking operation of pushing the finger lid portion below the moving lid, and the engaging portion retracts from the body opening ; A gas writer comprising: an elastic member forcing the lock member to rotate in a lock rotation direction opposite to the unlock rotation direction .

The lock member is rotatably held around the pin on the rotary lid, and the elastic member is a compression coil spring having one end supported by the rotary lid and the other end supported by the lock member. The gas writer according to claim 1 which gives repulsive force of the same direction as rotation of the ignition direction of a moving lid.

The by engagement portion hits the edge of the body opening when said engaging portion of said locking member is the body opening of the pivot lid remains in the locked position protruding inwardly is driven to rotate in the ignition direction prevents the rotation, when the engaging portion of the locking member is in the unlocked position exited to the outside of the body opening is possible rotation of the ignition direction of said rotating lid, according to claim 1 or 2 The gas writer described in 1.