JPH1182761A - Gas cock - Google Patents
Gas cockInfo
- Publication number
- JPH1182761A JPH1182761A JP24843497A JP24843497A JPH1182761A JP H1182761 A JPH1182761 A JP H1182761A JP 24843497 A JP24843497 A JP 24843497A JP 24843497 A JP24843497 A JP 24843497A JP H1182761 A JPH1182761 A JP H1182761A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- gas
- plug
- closing member
- operation shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガステーブル等の
ガス器具で用いるガスコックに関する。The present invention relates to a gas cock used in gas appliances such as a gas table.
【０００２】[0002]
【従来の技術】従来のこの種の装置として、操作摘みが
取り付けられる回転操作軸に対する回転操作に連動し
て、回転操作軸の回転軸線方向に長手のロッドを該回転
軸線に沿って移動させて電磁安全弁を開弁させると共
に、回転操作軸に連動して閉子を回転させてバーナへの
ガス供給量を増減調節するようにしたものが知られてい
る。該閉子はガス漏れを防止するためテーパ状に形成さ
れおり、該ガス弁装置のケーシングに形成されたテーパ
穴に係合して、閉子とケーシングとの間に隙間が生じな
いようにし、更に両者間にグリスを介在させて両者の潤
滑をはかると共にガス漏れを防止している。2. Description of the Related Art As a conventional apparatus of this type, a rod elongated in the direction of the rotation axis of a rotary operation shaft is moved along the rotation axis in conjunction with a rotation operation on a rotary operation shaft to which an operation knob is attached. There is known an electromagnetic safety valve in which a solenoid is opened, and a closing member is rotated in conjunction with a rotary operation shaft to increase or decrease the amount of gas supplied to a burner. The closing member is formed in a tapered shape to prevent gas leakage, and is engaged with a tapered hole formed in a casing of the gas valve device so that no gap is generated between the closing member and the casing. Further, grease is interposed between the two to lubricate them and prevent gas leakage.
【０００３】[0003]
【発明が解決しようとする課題】上記従来例のもので
は、閉子の外周面のテーパ角とケーシングのテーパ穴の
テーパ角とが完全に一致しないと、閉子とケーシングと
の間にかえって大きな隙間が生じるため、加工精度が要
求され、加工コストが高くなる。また、閉子とケーシン
グとは摺り合わせて密着するように調節するため、互換
性がなく部品管理が煩雑になる。更に、閉子とケーシン
グとの間に気密性と潤滑性とを高めるためグリスを介在
させるので、ガス通路にグリスが侵入しガス量の絞り特
性がばらついたり、使用温度によるグリスの粘度の変化
により操作力が変化する。これら従来のガスコックの有
する問題点はすべて閉子をテーパ状に形成したことに起
因する。In the above-mentioned prior art, if the taper angle of the outer peripheral surface of the closing member and the taper angle of the tapered hole of the casing do not completely match, a large space is formed between the closing member and the casing. Since a gap is generated, processing accuracy is required and processing cost is increased. In addition, since the closing member and the casing are adjusted so as to be brought into close contact with each other, they are incompatible and component management becomes complicated. Furthermore, since grease is interposed between the closing member and the casing to enhance airtightness and lubricity, grease invades the gas passage and the throttle characteristic of the gas amount varies, or the viscosity of the grease due to the operating temperature changes. The operating force changes. All of the problems of these conventional gas cocks stem from the fact that the closing member is formed in a tapered shape.
【０００４】従って、閉子を円筒状に形成すればこれら
問題点は解決するが、閉子を単に円筒状に形成したので
は、閉子とケーシングとの間に生じる隙間を通ってガス
が漏出するため、これまで実用に供する事ができなかっ
た。Accordingly, these problems can be solved by forming the closing member in a cylindrical shape. However, if the closing member is simply formed in a cylindrical shape, the gas leaks through a gap created between the closing member and the casing. Therefore, it has not been able to be put to practical use.
【０００５】そこで、本発明は上記問題点に鑑み、閉子
を円筒状に形成してもガスが漏出するおそれのないガス
コックを提供することを課題とする。SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a gas cock which does not leak gas even if the closing member is formed in a cylindrical shape.
【０００６】[0006]
【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、操作摘みが取り付けられる回転操作軸に対
する回転操作に連動して、回転操作軸の回転軸線方向に
長手のロッドを該回転軸線に沿って移動させて電磁安全
弁を開弁させると共に、回転操作軸に連動して閉子を回
転させてバーナへのガス供給量を増減調節するガスコッ
クにおいて、上記閉子を円筒状に形成すると共に、閉子
の配設位置から回転操作軸側にガスが漏出しないように
環状のシール部材を取り付け、かつ、回転操作軸が閉弁
位置にある状態で、上記閉子の上流側で閉弁する開閉弁
を上記ロッドに設けたことを特徴とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a rotating rod having a longitudinal axis extending in the direction of the rotation axis of a rotation operation shaft in conjunction with a rotation operation on a rotation operation shaft to which an operation knob is attached. In a gas cock that moves along an axis to open an electromagnetic safety valve and that rotates a closing member in conjunction with a rotating operation shaft to increase or decrease the amount of gas supplied to a burner, the closing member is formed in a cylindrical shape. At the same time, an annular sealing member is attached so that gas does not leak from the disposition position of the closing element to the rotating operation shaft side, and the valve is closed upstream of the closing element in a state where the rotating operation shaft is in the valve closing position. The on-off valve is provided on the rod.
【０００７】閉子を円筒形状にすることにより閉子とケ
ーシングとの間に隙間が生じやすくなる。隙間が生じる
と、閉子の開閉状態に関わらずガスは該隙間を通って閉
子の配設位置から回転操作軸側に漏出しようとする。そ
こで、上記シール部材を取り付けることにより回転操作
軸側への漏出を防止する。また、従来のテーパ状の閉子
では、閉子を閉弁状態にすると、閉子の外周面に開設し
たガス通路用の穴がケーシングにより閉塞されてバーナ
へガスが供給されない。ところが閉子を円筒形状にする
と、閉子の外周面とケーシングとの間に隙間が生じるた
め、電磁安全弁が閉弁するまでは閉子の外周面の開口か
ら該隙間を通ってバーナへガスが漏出する。[0007] By making the closing member a cylindrical shape, a gap is easily formed between the closing member and the casing. When a gap is formed, gas tends to leak from the position where the seal is provided to the rotary operation shaft side through the gap regardless of the open / closed state of the seal. Therefore, by attaching the above-mentioned seal member, leakage to the rotation operation shaft side is prevented. Further, in the conventional tapered closing device, when the closing device is closed, the gas passage hole formed in the outer peripheral surface of the closing device is closed by the casing, and gas is not supplied to the burner. However, when the closing member is formed in a cylindrical shape, a gap is formed between the outer peripheral surface of the closing member and the casing, so that gas flows from the opening on the outer peripheral surface of the closing member to the burner through the gap until the electromagnetic safety valve is closed. Leak.
【０００８】そこで、回転操作軸が閉弁位置にある状
態、即ち閉子が閉弁状態になると閉弁する開閉弁を上記
ロッドに設けることにより、閉子自体にガスが供給され
ないようにした。Therefore, by providing an on-off valve for closing the valve when the rotary operation shaft is in the valve closing position, that is, when the valve closes, the gas is not supplied to the valve itself.
【０００９】尚、一般に閉子は真鍮等の金属材料で形成
するが、樹脂材料は金属材料よりも自己潤滑性を有して
いるため、潤滑用のグリスを減量し、もしくは不要とす
ることができる。In general, the closing member is formed of a metal material such as brass, but since the resin material has more self-lubricating properties than the metal material, it is necessary to reduce or eliminate the need for lubricating grease. it can.
【００１０】[0010]
【発明の実施の形態】図１及び図２を参照して、１は例
えばアルミダイキャスト等で形成されたガスコックの本
体であり、内部は中空に形成されており、中空部分にガ
スを流入されるガス流入口１１と中空部分から図外のメ
インバーナへガスを流出させるガス流出口１２と、同じ
く図外のパイロットバーナへガスを流出させるパイロッ
ト口１３とが設けられている。本体１内には図１におい
て右端に電磁安全弁１０が取り付けられており、ガス流
入口１１から流入したガスは電磁安全弁１０が閉弁して
いると該電磁安全弁１０より下流へと流れることはな
い。該電磁安全弁１０は図１において左右方向に移動自
在のロッド２に押されることにより開弁する。該ロッド
２の途中位置には開閉弁２１が取り付けられており、該
開閉弁２１が閉弁するとガスは該開閉弁２１より下流に
流れることはない。該開閉弁２１の下流には閉子３が取
り付けられている。該閉子３は中空円筒状に形成されて
おり、円筒状の周壁の一部に開口３１が開設され、該開
口３１がガス流出口１２に一致すると、一致することに
より形成されるガス通路面積の大小に応じた流量のガス
がガス流出口１２からバーナへと供給される。該閉子３
の外周には、閉子３の外周面と本体１との間に形成され
る隙間を通ってガスが漏れないようにするため、Ｏリン
グ２ａが取り付けられている。また、閉子３を回動させ
るためのスリット３２が形成されている。上記ロッド２
は該閉子３の中空部分に挿通されており、閉子３とロッ
ド２との間にはＯリング２ａが取り付けられている。ロ
ッド２の左側端部近傍には細径にくびれたパイロット弁
２２が形成されており、図１に示す閉弁状態からロッド
２が右側に移動すると、Ｏリング２ａとパイロット弁２
２との間に隙間が生じて、ガスがパイロット口１３を通
ってパイロットバーナへと供給される。ロッド２はばね
２ｂにより左側に付勢されており、回動自在であって左
右方向に移動自在に取り付けられた有底円筒状のバルブ
セッタ４に、該バルブセッタ４の底部中央に嵌め込まれ
たクッションゴム４４を介して右側に押される。また、
該バルブセッタ４の底部には閉子３のスリット３２に係
合する１対の板状突起４１が形成されている。該板状突
起４１は閉子３のスリット３２と係合し、更に外側に張
り出すように形成されている。本体１の内部には所定の
位相でバルブセッタ４の回動を規制するストッパ部１４
が形成されており、板状突起４１の張り出した部分がス
トッパ部１４に当接することにより、バルブセッタ４は
所定の角度範囲で回動が規制される。尚、バルブセッタ
４と閉子３との間にはばね４ｂが縮設されている。ま
た、閉子３はバルブセッタ４に係合しているので、バル
ブセッタ４と共に同じ角度範囲で回動する。ところで、
パイロット弁２２を通ってパイロット口１３に流れたガ
スがバルブセッタ４と本体１との間を通って漏れないよ
うに、Ｏリング４ａが取り付けられている。該Ｏリング
４ａはガスの漏出を防ぐほか、バルブセッタ４が回動す
る際の適度の抵抗になる。また、バルブセッタ４の内周
面には１対の係合溝４２が図において左右方向に長手に
刻設されている。５はカムであり、該カム５の外周面に
形成した１対の突条５２が該係合溝４２に係合するよう
に、ばね５ｂと共にカム５がバルブセッタ４の内部に挿
入されている。また、カム５の外周面には突条５２と位
相が９０度ずれた位置に斜面からなるカム部５１が形成
されており、押さえ板７に形成した爪片７１が該カム部
５１に係合する。該押さえ板７には１対の角穴７２が貫
設されており、バルブセッタ４の左側端面に突設された
１対の突起４３が該角穴７２に挿入されるように設定さ
れている。カム５には摘みＮが取り付けられる回転操作
軸６が回り止めされた状態で遊嵌されており、押さえ板
７と回転操作軸６と間には図外の圧電素子を作動させる
駆動板９とばね６ｂとが介設されている。また、回転操
作軸６は、押さえ板７に取り付けられた門形のガイド板
８により保持されている。回転操作軸６が閉弁位置にお
いて、回転操作軸６に形成した爪部６１が係合する切り
欠き８１が、ガイド板８に形成されている。図１は回動
操作軸６が閉弁位置にある状態を示しており、電磁安全
弁１０、開閉弁２１、パイロット弁２２は共に閉弁して
おり、閉子３の開口３１はガス流出口１２に全く一致し
ておらず、バルブセッタ４の突起４３は角穴７２に係合
し、回転操作軸６の爪部６１は切り欠き８１に係合して
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2, reference numeral 1 denotes a body of a gas cock formed by, for example, aluminum die-casting, the inside of which is formed hollow, and gas is introduced into a hollow portion. A gas inlet 11 and a gas outlet 12 for allowing gas to flow out of the hollow portion to a main burner (not shown), and a pilot port 13 for allowing gas to flow out to a pilot burner (not shown). In the main body 1, an electromagnetic safety valve 10 is attached to the right end in FIG. 1, and gas flowing in from the gas inlet 11 does not flow downstream from the electromagnetic safety valve 10 when the electromagnetic safety valve 10 is closed. . The electromagnetic safety valve 10 is opened by being pushed by a rod 2 movable in the left-right direction in FIG. An on-off valve 21 is attached at an intermediate position of the rod 2, and when the on-off valve 21 is closed, gas does not flow downstream from the on-off valve 21. Downstream of the on-off valve 21, the closet 3 is attached. The closing member 3 is formed in a hollow cylindrical shape, and an opening 31 is opened in a part of the cylindrical peripheral wall. When the opening 31 coincides with the gas outlet 12, a gas passage area formed by the coincidence is formed. Is supplied from the gas outlet 12 to the burner. The child 3
An O-ring 2a is mounted on the outer periphery of the O-ring 2 to prevent gas from leaking through a gap formed between the outer peripheral surface of the closet 3 and the main body 1. Further, a slit 32 for rotating the closet 3 is formed. Rod 2
Is inserted through a hollow portion of the closing piece 3, and an O-ring 2 a is attached between the closing piece 3 and the rod 2. A narrow pilot valve 22 is formed near the left end of the rod 2. When the rod 2 moves to the right from the closed state shown in FIG. 1, the O-ring 2a and the pilot valve 2
A gas is supplied to the pilot burner through the pilot port 13. The rod 2 is urged to the left by a spring 2b, and is fitted into a bottomed cylindrical valve setter 4 which is rotatable and movably mounted in the left-right direction, and which is fitted in the center of the bottom of the valve setter 4. Pushed to the right via 44. Also,
A pair of plate-like projections 41 are formed on the bottom of the valve setter 4 to engage with the slits 32 of the closing member 3. The plate-like projection 41 is formed so as to engage with the slit 32 of the closing member 3 and further project outward. A stopper portion 14 that regulates rotation of the valve setter 4 in a predetermined phase inside the main body 1.
Is formed, and the protruding portion of the plate-shaped projection 41 comes into contact with the stopper portion 14, whereby the rotation of the valve setter 4 is restricted within a predetermined angle range. Note that a spring 4b is contracted between the valve setter 4 and the closing member 3. Further, since the closing member 3 is engaged with the valve setter 4, it rotates with the valve setter 4 in the same angle range. by the way,
An O-ring 4a is attached so that gas flowing to the pilot port 13 through the pilot valve 22 does not leak between the valve setter 4 and the main body 1. The O-ring 4a not only prevents gas leakage but also provides an appropriate resistance when the valve setter 4 rotates. A pair of engagement grooves 42 are formed in the inner peripheral surface of the valve setter 4 in the longitudinal direction in the left-right direction in the figure. Reference numeral 5 denotes a cam. The cam 5 is inserted into the valve setter 4 together with the spring 5b so that a pair of projections 52 formed on the outer peripheral surface of the cam 5 engage with the engagement grooves 42. A cam portion 51 formed of a slope is formed on the outer peripheral surface of the cam 5 at a position shifted by 90 degrees from the ridge 52, and a claw piece 71 formed on the holding plate 7 is engaged with the cam portion 51. I do. The holding plate 7 has a pair of square holes 72 penetrating therethrough, and a pair of projections 43 projecting from the left end surface of the valve setter 4 are set so as to be inserted into the square holes 72. A rotary operation shaft 6 to which a knob N is attached is loosely fitted to the cam 5 in a state where it is prevented from rotating. A drive plate 9 for operating a piezoelectric element (not shown) is provided between the holding plate 7 and the rotary operation shaft 6. A spring 6b is interposed. The rotary operation shaft 6 is held by a gate-shaped guide plate 8 attached to a holding plate 7. When the rotation operation shaft 6 is in the valve closing position, a notch 81 is formed in the guide plate 8 with which the claw portion 61 formed on the rotation operation shaft 6 engages. FIG. 1 shows a state in which the rotary operation shaft 6 is in a valve closing position, the electromagnetic safety valve 10, the on-off valve 21, and the pilot valve 22 are all closed, and the opening 31 of the closer 3 is The protrusion 43 of the valve setter 4 is engaged with the square hole 72, and the claw 61 of the rotary operation shaft 6 is engaged with the notch 81.
【００１１】バーナに点火する際には、まず回転操作軸
６を図において右側に押し込み、切り欠き８１から爪部
６１を抜き、回動操作軸６を回動自在にする。続いて回
動操作軸６を左回りに回動すると、カム５は回動操作軸
６に連動して同じく左回りに回動する。すると、爪片７
１とカム部５１との協働により、カム５は爪片７１に押
されて、回動しながら図において右側に移動する。バル
ブセッタ４はカム５に対して係合溝４２と突条５２とに
よって係合しており、バルブセッタ４にはＯリング４ａ
によって回動に対する抵抗力が作用するので、係合溝４
２と突条５２との間に摩擦力が生じ、カム５と一体にな
ってバルブセッタ４も回動しながら右側に移動する。バ
ルブセッタ４は板状突起４１がストッパ部１４に当接す
るまで回動しながら右側へと移動する。バルブセッタ４
が最も右側に移動すると、図３に示すように、バルブセ
ッタ４がロッド２を右側に押して、パイロット弁２２と
開閉弁２１と電磁安全弁１０とを開弁させ、パイロット
バーナにガスが供給される。また、この時バルブセッタ
４と共に閉子３が回動して閉子３の開口３１がガス流出
口１２に完全に一致し、強火に相当する量のガスがバー
ナに供給される。更に、駆動板９が図外の圧電素子を作
動させてパイロットバーナに点火させる。バイロットバ
ーナが点火されると、バイロットバーナによりバーナが
点火され、バーナ近傍に配置された図外の熱電対が加熱
される。熱電対から生じる熱起電力により電磁安全弁１
０が開弁保持される状態になるまで、回動操作軸６に左
方向への回動力を作用し続けておく。熱起電力により電
磁安全弁１０が開弁保持されると、回動操作軸６に作用
させている回動力を解除する。すると、係合溝４２と突
条５２との間の摩擦力が減少し、バルブセッタ４はばね
４ｂの付勢力により左側に押し戻され、図４に示す状態
になる。この時、バルブセッタ４の突起４３は角穴７２
に一致していないので、突起４３の先端が押さえ板７の
右側面に当接し、図１に示す位置まで完全に戻らない。
このように完全に戻らないので、開閉弁２１は開弁状態
のまま保持される。但し、ロッド２は図１に示す位置に
向かって大幅に戻るので、その位置では電磁安全弁１０
の閉弁を邪魔することなく、且つパイロット弁２２は閉
弁する。回動操作軸６を右回りに戻すと閉子３の開口３
１とガス流出口１２との一致する面積が減少するので、
それに伴いバーナへ供給されるガス量が減少し、バーナ
の火力が小さくなる。回動操作軸６を再び左側へ回動す
ると、バーナに供給されるガス量が増加しバーナの火力
が大きくなる。回動操作軸６を右回りにいっぱいに戻す
と、バルブセッタ４の突起４３が角穴７２に一致し、角
穴７２内に該突起４３が嵌り込むので、バルブセッタ４
は突起４３の高さ分、図４に示す状態から更に図におい
て左へと戻る。すると、ロッド２はばね２ｂの付勢力に
より左側へ押し戻され、図１に示す状態になる。その結
果、開閉弁２１は閉弁し、バーナへのガス供給は完全に
絶たれ、バーナは消火する。バーナが消火することによ
り熱電対から生じていた熱起電力が減少し、電磁安全弁
１０は開弁保持できなくなり閉弁し、すべて図１に示す
状態に戻る。When igniting the burner, first, the rotary operation shaft 6 is pushed rightward in the figure, the claw portion 61 is pulled out from the notch 81, and the rotary operation shaft 6 is made rotatable. Subsequently, when the rotation operation shaft 6 is rotated counterclockwise, the cam 5 is also rotated counterclockwise in conjunction with the rotation operation shaft 6. Then, the nail piece 7
The cam 5 is pushed by the claw piece 71 by the cooperation of the cam 1 and the cam portion 51, and moves to the right in the figure while rotating. The valve setter 4 is engaged with the cam 5 by an engagement groove 42 and a ridge 52, and the valve setter 4 has an O-ring 4a.
As a result, a rotational force acts on the engagement groove 4.
A frictional force is generated between the protrusion 2 and the ridge 52, and the valve setter 4 moves to the right while rotating together with the cam 5. The valve setter 4 moves to the right while rotating until the plate-shaped protrusion 41 comes into contact with the stopper portion 14. Valve setter 4
Moves to the rightmost side, as shown in FIG. 3, the valve setter 4 pushes the rod 2 rightward to open the pilot valve 22, the on-off valve 21 and the electromagnetic safety valve 10, and gas is supplied to the pilot burner. Further, at this time, the closing member 3 rotates together with the valve setter 4, so that the opening 31 of the closing member 3 completely matches the gas outlet 12, and an amount of gas corresponding to high heat is supplied to the burner. Further, the drive plate 9 operates a piezoelectric element (not shown) to ignite the pilot burner. When the bi-rot burner is ignited, the burner is ignited by the bi-rot burner, and a thermocouple (not shown) arranged near the burner is heated. Electromagnetic safety valve 1 by thermoelectromotive force generated from thermocouple
Until the state where 0 is held open, the leftward turning force is continuously applied to the rotating operation shaft 6. When the electromagnetic safety valve 10 is opened and held by the thermoelectromotive force, the rotating force acting on the rotating operation shaft 6 is released. Then, the frictional force between the engaging groove 42 and the ridge 52 is reduced, and the valve setter 4 is pushed back to the left by the urging force of the spring 4b, and the state shown in FIG. 4 is obtained. At this time, the protrusion 43 of the valve setter 4 is
Therefore, the tip of the projection 43 comes into contact with the right side surface of the holding plate 7 and does not completely return to the position shown in FIG.
Since it does not return completely, the on-off valve 21 is maintained in the open state. However, since the rod 2 largely returns toward the position shown in FIG.
, And the pilot valve 22 is closed. When the rotary operation shaft 6 is returned clockwise, the opening 3 of the
Since the area corresponding to 1 and the gas outlet 12 is reduced,
Accordingly, the amount of gas supplied to the burner decreases, and the thermal power of the burner decreases. When the turning operation shaft 6 is turned to the left again, the amount of gas supplied to the burner increases, and the heat of the burner increases. When the rotary operation shaft 6 is fully returned clockwise, the protrusion 43 of the valve setter 4 coincides with the square hole 72, and the protrusion 43 fits into the square hole 72.
Returns from the state shown in FIG. 4 to the left in the figure by the height of the projection 43. Then, the rod 2 is pushed back to the left by the urging force of the spring 2b, and the state shown in FIG. 1 is obtained. As a result, the on-off valve 21 is closed, the gas supply to the burner is completely cut off, and the burner extinguishes. When the burner extinguishes, the thermoelectromotive force generated from the thermocouple decreases, the electromagnetic safety valve 10 cannot be kept open, and closes, all returning to the state shown in FIG.
【００１２】ところで、上記閉子３は通常は真鍮等の金
属材料やセラミックで形成する。但し、金属材料やセラ
ミックで閉子３を形成すると、閉子３が円滑に回動し得
るように閉子３と本体１との間に潤滑のためグリス等を
介在させなければならない。そこで、閉子３をポリブチ
レンテレフタレート（ＰＢＴ）やポリアミド（ＰＡ：ナ
イロン）やポリオキシメチレン（ＰＯＭ：ポリアセター
ル）等の合成樹脂で形成し、あるいは閉子３の円筒面部
分を合成樹脂（例えばフッ素樹脂）で覆うようにしても
よい。このように閉子３の少なくとも円筒面を合成樹脂
で形成すると、合成樹脂は自己潤滑性に優れているので
グリスの使用量を少なくすることができる。また、合成
樹脂を用いることにより加工コストや材料コストを削減
することができる。The closing piece 3 is usually made of a metal material such as brass or ceramic. However, when the closing member 3 is formed of a metal material or ceramic, grease or the like must be interposed between the closing member 3 and the main body 1 for lubrication so that the closing member 3 can rotate smoothly. Therefore, the closing member 3 is formed of a synthetic resin such as polybutylene terephthalate (PBT), polyamide (PA: nylon), or polyoxymethylene (POM: polyacetal), or the cylindrical surface portion of the closing member 3 is formed of a synthetic resin (for example, fluorine). (Resin). When at least the cylindrical surface of the closing member 3 is formed of a synthetic resin as described above, the synthetic resin has excellent self-lubricating properties, so that the amount of grease used can be reduced. In addition, processing costs and material costs can be reduced by using a synthetic resin.
【００１３】[0013]
【発明の効果】以上の説明から明らかなように、本発明
は、閉子を従来のテーパ状ではなく円筒状に形成したの
で、閉子と閉子が格納されている本体との間に生じる摩
擦力を小さくすることができ、回転操作軸を軽く操作す
ることができる。As is apparent from the above description, the present invention has a structure in which the closing member is formed not in the conventional tapered shape but in a cylindrical shape, so that the closing portion is formed between the closing portion and the main body in which the closing portion is stored. The frictional force can be reduced, and the rotary operation shaft can be operated lightly.
【００１４】本体と閉子との間に完全な気密性を必要と
しないので加工精度や寸法管理を厳しくする必要がな
く、全体のコストを下げることができる。Since complete airtightness is not required between the main body and the closing piece, there is no need to strictly control the processing accuracy and dimensional control, and the overall cost can be reduced.
【図１】本発明の一実施の形態の構成を示す断面図FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.
【図２】各構成部品の形状を示す分解斜視図FIG. 2 is an exploded perspective view showing the shape of each component.
【図３】点火時の状態を示す断面図FIG. 3 is a sectional view showing a state at the time of ignition.
【図４】開弁時の状態を示す断面図FIG. 4 is a sectional view showing a state when the valve is opened.
１ 本体 ２ ロッド ３ 閉子 ４ バルブセッタ ５ カム ６ 回動操作軸 １０ 電磁安全弁 ２１ 開閉弁 ２２ パイロット弁 DESCRIPTION OF SYMBOLS 1 Main body 2 Rod 3 Closer 4 Valve setter 5 Cam 6 Rotating operation shaft 10 Electromagnetic safety valve 21 On-off valve 22 Pilot valve
Claims (2)
対する回転操作に連動して、回転操作軸の回転軸線方向
に長手のロッドを該回転軸線に沿って移動させて電磁安
全弁を開弁させると共に、回転操作軸に連動して閉子を
回転させてバーナへのガス供給量を増減調節するガスコ
ックにおいて、上記閉子を円筒状に形成すると共に、閉
子の配設位置から回転操作軸側にガスが漏出しないよう
に環状のシール部材を取り付け、かつ、回転操作軸が閉
弁位置にある状態で、上記閉子の上流側で閉弁する開閉
弁を上記ロッドに設けたことを特徴とするガスコック。1. An electromagnetic safety valve is opened by moving a rod elongated in the rotation axis direction of the rotation operation shaft along the rotation axis in conjunction with the rotation operation on the rotation operation shaft to which the operation knob is attached. In a gas cock which rotates a closing member in conjunction with a rotating operation shaft to increase or decrease a gas supply amount to a burner, the closing member is formed in a cylindrical shape, and a gas is supplied from a disposing position of the closing member to a rotating operation shaft side. A gas cock characterized in that an annular seal member is attached so as to prevent leakage, and an on-off valve that closes on the upstream side of the closer is provided on the rod in a state where the rotary operation shaft is at a valve closing position. .
で形成したことを特徴とする請求項１記載のガスコッ
ク。2. The gas cock according to claim 1, wherein at least a cylindrical surface of said closing member is formed of a resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24843497A JP3383194B2 (en) | 1997-09-12 | 1997-09-12 | Gas cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24843497A JP3383194B2 (en) | 1997-09-12 | 1997-09-12 | Gas cock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1182761A true JPH1182761A (en) | 1999-03-26 |
| JP3383194B2 JP3383194B2 (en) | 2003-03-04 |
Family
ID=17178074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24843497A Expired - Fee Related JP3383194B2 (en) | 1997-09-12 | 1997-09-12 | Gas cock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3383194B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008089145A (en) * | 2006-10-04 | 2008-04-17 | Harman Pro:Kk | Rotation operative gas equipment cock |
-
1997
- 1997-09-12 JP JP24843497A patent/JP3383194B2/en not_active Expired - Fee Related
Cited By (1)
| 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 |
|---|---|
| JP3383194B2 (en) | 2003-03-04 |
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