JPH0472114B2 - - Google Patents
Info
- Publication number
- JPH0472114B2 JPH0472114B2 JP9929487A JP9929487A JPH0472114B2 JP H0472114 B2 JPH0472114 B2 JP H0472114B2 JP 9929487 A JP9929487 A JP 9929487A JP 9929487 A JP9929487 A JP 9929487A JP H0472114 B2 JPH0472114 B2 JP H0472114B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- float
- case
- floating
- 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.)
- Expired
Links
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は水道配管に取付けて使用され、水道配
管内に導入された空気を速やかに排気するための
小型急速空気弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a small rapid air valve that is attached to a water pipe and used to quickly exhaust air introduced into the water pipe.
［従来技術］
この種の空気弁としては、同一出願人に係る特
公昭57−56629号公報に開示された構成のものが
公知である。この公知の空気弁においては、フロ
ート弁室内に、球形を呈する第１のフロート弁
と、環体を呈する第２のフロート弁との組合わせ
て収納した構造であり、従来の球形のフロート弁
だけをフロート弁室内に収納した空気弁に比べて
遥かに小形化できる点で優れている。[Prior Art] As this type of air valve, one having a configuration disclosed in Japanese Patent Publication No. 57-56629 filed by the same applicant is known. This known air valve has a structure in which a first float valve exhibiting a spherical shape and a second float valve exhibiting an annular body are housed in combination in a float valve chamber, unlike the conventional spherical float valve. This valve is superior in that it can be made much smaller than an air valve in which the valve is housed in the float valve chamber.
［発明が解決しようとする問題点］
しかしながら、前記公知の空気弁においては、
フロート弁室内に収納された第１及び第２のフロ
ート弁は、フロート弁室内に導入される空気が直
接作用する位置に収納されているため、及びフロ
ート弁室自体の大きさに限度があるため、一挙に
大量の空気を排気することが困難であり、その様
な大容量の空気が導入されるような水道配管、即
ち水道本管に取付けた場合に、排気残しが生ずる
と言う問題点を有している。[Problems to be solved by the invention] However, in the above-mentioned known air valve,
The first and second float valves housed in the float valve chamber are housed in positions where they are directly affected by the air introduced into the float valve chamber, and because the size of the float valve chamber itself is limited. It is difficult to exhaust a large amount of air at once, and when installed in water pipes where such a large volume of air is introduced, in other words, water mains, there is a problem that some exhaust remains. have.
そのような排気残しの問題点は、フロート弁室
の容量を大きくすることで解決できるが、空気弁
自体が大きくなるため、使用材料が多くなり、コ
ストアツプにつながるだけでなく、持ち運び及び
商品管理の面で問題点が生ずることになる。 The problem of such residual exhaust air can be solved by increasing the capacity of the float valve chamber, but since the air valve itself becomes larger, more materials are used, which not only leads to increased costs, but also makes transportation and product management difficult. This will cause problems on the front.
［問題点を解決するための手段］
前記問題点を解決するための具体的手段として
本発明は、弁箱の上部に排気口を有する弁蓋をガ
スケツトを介して着脱自在に取付け、前記弁箱内
に弁体ケースを吊垂状態に配設し、該弁体ケース
内に上下動自在に遊動弁体とフロート弁とフロー
トケースとを収納し、前記弁体ケースは上部寄り
に複数の大径の窓孔を形成し、底部寄りに小孔を
設けると共に内側面に縦方向に複数のガイド部を
設けた構成にし、前記遊動弁体は円柱状に形成す
ると共に、一側縁寄りに小径の排気口を貫通して
設け、該排気口の下部に弁座を突出して設けると
共に、該弁座に近接して一対のガイド杆を下向き
に取付け、該ガイド杆に対応し且つ遊嵌するガイ
ド孔を前記フロート弁に設け、該フロート弁を包
有させ且つ多数の窓孔を有する前記フロートケー
スを前記遊動弁体に取付けたことを特徴とする小
型急速空気弁を提供するものであつて、前記弁箱
内に弁体ケースを設け、該弁体ケース内に上下動
自在に、遊離弁体と、フロート弁と、フロートケ
ースとを配設することで、更に大容量の一気の排
気が可能になり、小型でありながら大容量排気に
適用できるのである。[Means for Solving the Problems] As a specific means for solving the above-mentioned problems, the present invention provides a method in which a valve cover having an exhaust port is removably attached to the upper part of the valve box via a gasket, and A valve body case is disposed in a hanging state, and a floating valve body, a float valve, and a float case are housed in the valve body case so as to be able to move up and down, and the valve body case has a plurality of large diameters near the top. A window hole is formed, a small hole is provided near the bottom, and a plurality of guide sections are provided in the vertical direction on the inner surface. A guide hole provided through the exhaust port, with a valve seat protruding from the lower part of the exhaust port, and a pair of guide rods facing downward adjacent to the valve seat, which correspond to and fit loosely into the guide rods. is provided in the float valve, and the float case enclosing the float valve and having a large number of window holes is attached to the floating valve body, By providing a valve body case within the valve box and arranging a free valve body, a float valve, and a float case that can move up and down within the valve body case, even larger volumes can be exhausted at once. Therefore, although it is small, it can be applied to large-capacity exhaust.
［実施例］
次に本発明を図示の実施例により更に詳しく説
明すると、１は弁箱であり、該弁箱の上部に着脱
自在に弁蓋２が施蓋され、該弁蓋の略中央部に比
較的大径の排気口３が設けられている。前記弁箱
１内には弁体ケース４が吊垂状態に配設され、該
弁体ケース４は上部周縁にフランジ部５を有し、
該フランジ部を介して吊垂状態に配設される。そ
して、この弁体ケース４は前記フランジ部５の近
接した胴部に複数の大径の窓孔６を備えると共
に、底部側にも複数の小孔７を備え、更に内側面
に柱状のガイド部８が複数条（少なくとも３条）
形成されている。[Example] Next, the present invention will be described in more detail with reference to the illustrated embodiment. Reference numeral 1 denotes a valve box, and a valve cover 2 is detachably attached to the upper part of the valve box, and a substantially central portion of the valve cover is attached. A relatively large-diameter exhaust port 3 is provided in the exhaust port 3 . A valve body case 4 is disposed in a suspended state in the valve box 1, and the valve body case 4 has a flange portion 5 on the upper periphery;
It is arranged in a suspended state via the flange portion. The valve body case 4 is provided with a plurality of large-diameter window holes 6 in the body adjacent to the flange portion 5, a plurality of small holes 7 on the bottom side, and a columnar guide portion on the inner surface. 8 is multiple articles (at least 3 articles)
It is formed.
この弁体ケース４内には、遊動弁体９とフロー
ト弁１０及びフロートケース１１が上下動可能に
収納される。この場合の遊動弁体９とフロート弁
１０とは、発泡体例えばニトリルゴムに発泡剤を
入れて独立気泡を抱有させた材料で形成したもの
であり、遊動弁体９は全体的に円柱状を呈し、上
面は前記弁蓋２の排気口３に嵌まるよう砲台９ａ
に形成し、一側縁寄りに小径の排気口１２を設
け、該排気口は弁座１３と弁座受１４とで構成さ
れ、弁座部分を遊動弁体の下面に僅かに突出して
設け、該弁座１３の近傍に一対のガイド杆１５が
下向きに取付けてある。又、前記弁座１３と対称
位置の遊動弁体の下面に、弁座１３の突出と略同
じ高さに突出部１６が形成してある
前記フロート弁１０は略逆台形に形成され、前
記ガイド杆１５に対応する位置に一対のガイド孔
１７が設けられ、該ガイド孔に沿つて下方部分に
スリツト１８が夫々設けてある。そして、前記ガ
イド杆１５が前記ガイド孔１７に遊嵌し、しかも
前記スリツト１８の形成範囲において、フロート
弁１０が傾斜できるようになつている。 A floating valve body 9, a float valve 10, and a float case 11 are housed in the valve body case 4 so as to be movable up and down. The floating valve body 9 and the float valve 10 in this case are made of a material made of foam, for example, nitrile rubber containing a foaming agent to contain closed cells, and the floating valve body 9 has a generally cylindrical shape. The upper surface has a turret 9a so as to fit into the exhaust port 3 of the valve cover 2.
A small-diameter exhaust port 12 is provided near one side edge, and the exhaust port is composed of a valve seat 13 and a valve seat support 14, with the valve seat portion slightly protruding from the lower surface of the floating valve body. A pair of guide rods 15 are attached downwardly near the valve seat 13. Further, a protrusion 16 is formed on the lower surface of the floating valve body at a position symmetrical to the valve seat 13 at approximately the same height as the protrusion of the valve seat 13.The float valve 10 is formed in an approximately inverted trapezoidal shape, and the A pair of guide holes 17 are provided at positions corresponding to the rods 15, and slits 18 are provided in the lower portions along the guide holes. The guide rod 15 is loosely fitted into the guide hole 17, and the float valve 10 can be tilted within the range in which the slit 18 is formed.
前記フロートケース１１は、多数の窓孔１９を
有する篭状を呈し、前記フロート弁１０を収納し
た状態において、前記遊離弁体９に取付けられ
る。従つて、遊動弁体９、フロート弁１０及びフ
ロートケース１１は、一緒になつて弁体ケース４
内を上下動し、しかも遊動弁体９はガイド部８に
よつて傾斜することなく、速やかに上下動するの
である。尚、図中符号２０はガスケツトであり、
該ガスケツトは弁蓋２のシールを兼ねた前記遊動
弁体９の弁座となる。又、２１はＯリング、２２
はカバー、２３はカバーに設けられた窓である。 The float case 11 has a basket shape with a large number of window holes 19, and is attached to the free valve body 9 in a state in which the float valve 10 is housed therein. Therefore, the floating valve body 9, the float valve 10, and the float case 11 are combined into the valve body case 4.
In addition, the floating valve body 9 moves up and down quickly without being tilted by the guide portion 8. In addition, the reference numeral 20 in the figure is a gasket.
The gasket serves as a valve seat for the floating valve body 9, which also serves as a seal for the valve cover 2. Also, 21 is an O-ring, 22
is a cover, and 23 is a window provided in the cover.
「動作の説明」
前記構成を有する空気弁において、水道配管内
に空気が弁箱１内に導入されたとき、特に大量の
空気が導入されても、弁体ケース４の存在によ
り、遊動弁体９及びフロート弁１０が導入空気で
直接吹き上げられることなく、矢印ａで示したよ
うに、弁体ケース４の外側の空間を通り、窓孔６
から直接大径の排気口３を介して速やかに外部に
排気される。"Description of operation" In the air valve having the above configuration, when air is introduced into the valve box 1 into the water pipe, even if a particularly large amount of air is introduced, the presence of the valve body case 4 prevents the floating valve body from moving. 9 and the float valve 10 are not directly blown up by the introduced air, but pass through the space outside the valve body case 4 as shown by arrow a, and enter the window hole 6.
The air is immediately exhausted to the outside through the large-diameter exhaust port 3.
弁箱１内に少量の空気が導入されたときには、
第２図に示したように、直ぐには排気されず、弁
箱１内に徐々に空気が溜まり、それによつて弁箱
内の水位を徐々に押し下げる。この場合に、弁箱
１内には水ｃが一緒に入るか又は予め溜まつてお
り、この水ｃは弁体ケース４に対して下部の小孔
７から侵入し、フロートケース１１のフロート弁
１０を浮上らせ、その上面が弁座１３に当接して
小径の排気口１２を塞ぎ、その状態で更に遊動弁
体９を押し上げ、該遊動弁体９がガスケツト２０
に当接して排気口３を塞ぎ、水ｃの流出を防止し
ている。この状態においては、弁箱１内の気圧は
外気圧よりも高いので、遊動弁体９及びフロート
弁１０は夫々ガスケツト２０及び弁座１３に吸着
状態に位置し、排気されないようになつている。
そして、弁箱１内に溜まつた空気が増えて、フロ
ート弁１０の下面又はそれよりも水位が下がつた
ときに、第３図に示したように、フロート弁１０
が徐々に傾斜して、弁座１３との当接部に空間を
生じさせ、矢印ｂで示したように、小径の排気口
１２から少量の空気を排気し、内部の圧力が下が
ることによつて、フロート弁１０及び遊動弁体９
が自重により夫々弁座から離れて落下し、前記窓
孔６から大径の排気口３を介して速やかに外部に
排気する。 When a small amount of air is introduced into the valve box 1,
As shown in FIG. 2, air is not evacuated immediately but gradually accumulates inside the valve housing 1, thereby gradually lowering the water level inside the valve housing. In this case, water c enters the valve body 1 together or is collected in advance, and this water c enters the valve body case 4 through the small hole 7 at the bottom and flows into the float valve of the float case 11. 10 is floated, its upper surface contacts the valve seat 13 and closes the small diameter exhaust port 12, and in this state, the floating valve body 9 is further pushed up, and the floating valve body 9 touches the gasket 20.
It comes into contact with the exhaust port 3 and blocks the exhaust port 3 to prevent water c from flowing out. In this state, the air pressure inside the valve box 1 is higher than the outside air pressure, so the floating valve body 9 and the float valve 10 are adsorbed to the gasket 20 and the valve seat 13, respectively, so that they are not exhausted.
When the air accumulated in the valve box 1 increases and the water level drops to or below the bottom surface of the float valve 10, as shown in FIG.
is gradually inclined to create a space at the contact part with the valve seat 13, and as shown by arrow b, a small amount of air is exhausted from the small diameter exhaust port 12, and the internal pressure is reduced. Therefore, the float valve 10 and the floating valve body 9
The valves separate from the valve seat and fall due to their own weight, and are quickly exhausted to the outside through the window hole 6 and the large-diameter exhaust port 3.
この場合に、フロート弁１０は小型で軽量であ
り、且つ弁箱１内の圧力が外気圧よりも高いが、
弁座１６との吸着当接位置が、端部側に近い位置
であるため、フロート弁１０自体の重量が梃の応
用になつて、他端部側が水位の低下に伴つて徐々
に下がり、前記吸着当接位置の小径の排気口１２
を少しずつ解放することになり、続いてフロート
弁１０がガイド杆１５にガイドされて落下し、小
径の排気口１２が全開して内部の空気を排気する
のである。この時点では、前記遊動弁体９は、吸
着状態が保持されているが、弁箱内の圧力が低下
することによつて、吸着が解放され自重及びフロ
ート弁１０並びにフロートケース１１との重量が
加わることによつて落下することになる。又、前
記フロート弁１０の傾斜及び落下はガイド杆１５
によつて行われ、前記遊動弁体９及びフロートケ
ース１１は、弁体ケース４のガイド部８によつて
ガイドされながら落下するので、それ等の位置が
ずれたり、或は途中で引つ掛かることがなく、常
に適正な状態に位置し、その機能が失われること
がないのである。 In this case, although the float valve 10 is small and lightweight, and the pressure inside the valve box 1 is higher than the outside pressure,
Since the suction contact position with the valve seat 16 is close to the end side, the weight of the float valve 10 itself acts as a lever, and the other end side gradually lowers as the water level decreases, causing the above-mentioned Small diameter exhaust port 12 at suction contact position
The float valve 10 is then guided by the guide rod 15 and falls, and the small diameter exhaust port 12 is fully opened to exhaust the air inside. At this point, the floating valve body 9 is maintained in an adsorption state, but as the pressure inside the valve box decreases, the adsorption is released and its own weight and the weight of the float valve 10 and float case 11 are reduced. By joining, it will fall. Also, the tilting and falling of the float valve 10 is caused by the guide rod 15.
Since the floating valve body 9 and the float case 11 fall while being guided by the guide part 8 of the valve body case 4, their positions may shift or they may get caught on the way. It is always in a proper state and never loses its function.
前記した通り、遊動弁体９のみを使用する場合
に、その遊動弁体が吸着力に抗して、自重で落下
し得る重量と大きさにしなければならず、そのた
めに弁箱も大きくしなければならないが、前記し
たように逆台形のフロート弁１０とを組合わせ、
更に弁体ケース４とフロートケース１１とを配設
することで、遊動弁体を小形化しても、大容量の
排気が簡単に行えるものである。特に、全体の大
きさは前記従来例のものと略同じであるが、排気
量は略４倍以上に亘るものである。 As mentioned above, when only the floating valve body 9 is used, the weight and size must be such that the floating valve body can resist the adsorption force and fall under its own weight, and for this purpose, the valve box must also be large. However, as mentioned above, in combination with the inverted trapezoidal float valve 10,
Furthermore, by arranging the valve body case 4 and the float case 11, even if the floating valve body is made smaller, a large volume of air can be easily evacuated. In particular, although the overall size is approximately the same as that of the conventional example, the displacement is approximately four times or more.
［発明の効果］
以上説明したように、本発明に係る小型急速空
気弁は、弁箱の上部に排気口を有する弁蓋をガス
ケツトを介して着脱自在に取付け、前記弁箱内に
弁体ケースを吊垂状態に配設し、該弁体ケース内
に上下動自在に遊動弁体とフロート弁とフロート
ケースとを収納し、前記弁体ケースは上部寄りに
複数の大径の窓孔を形成し、底部寄りに小孔を設
けると共に内側面に縦方向に複数のガイド部を設
けた構成にし、前記遊動弁体は円柱状に形成する
と共に、一側縁寄りに小径の排気口を貫通して設
け、該排気口の下部に弁座を突出して設けると共
に、該弁座に近接して一対のガイド杆を下向きに
取付け、該ガイド杆に対応し且つ遊嵌するガイド
孔を前記フロート弁に設け、該フロート弁を包有
させ且つ多数の窓孔を有する前記フロートケース
を前記遊動弁体に取付けた構成にしたことによ
り、大量の空気が弁箱内に導入されても、大径の
排気口を介して急速に且つ一気に排気でき、小型
でありながら大容量の水道本管に接続して使用で
きるという優れた効果を奏する。[Effects of the Invention] As explained above, in the small rapid air valve according to the present invention, a valve cover having an exhaust port is removably attached to the upper part of a valve box via a gasket, and a valve body case is placed inside the valve box. is arranged in a hanging state, and a floating valve body, a float valve, and a float case are housed in the valve body case so as to be vertically movable, and the valve body case has a plurality of large diameter window holes near the upper part. A small hole is provided near the bottom and a plurality of guide portions are provided in the vertical direction on the inner surface, and the floating valve body is formed in a cylindrical shape and has a small diameter exhaust port passing through it near one edge. A valve seat is provided protruding from the lower part of the exhaust port, a pair of guide rods are attached facing downward adjacent to the valve seat, and a guide hole that corresponds to and loosely fits the guide rods is provided in the float valve. By arranging the structure in which the float case, which encloses the float valve and has a large number of window holes, is attached to the floating valve body, even if a large amount of air is introduced into the valve body, a large diameter exhaust gas can be removed. It has the excellent effect of being able to be exhausted rapidly and all at once through the mouth, and being able to be used by being connected to a large-capacity water main even though it is small.
又、全体を小型に形成できるので、安価に提供
できるばかりでなく、取扱及び保管管理等が容易
になるという優れた効果も奏する。 In addition, since the entire device can be made compact, it can not only be provided at low cost, but also has excellent effects such as ease of handling, storage management, etc.
第１図は本発明に係る小型急速空気弁の断面
図、第２図及び第３図は同空気弁の動作状態を示
す断面図、第４図は第１図の−線に沿う断面
図である。
１……弁箱、２……弁蓋、３……大径の排気
口、４……弁体ケース、５……フランジ部、６…
…大径の窓孔、７……小孔、８……ガイド部、９
…遊動弁体、１０……フロート弁、１１……フロ
ートケース、１２……小径の排気口、１３……弁
座、１４……弁座受、１５……ガイド杆、１６…
…突出部、１７……ガイド孔、１８……スリツ
ト、１９……窓孔、２０……ガスケツト、２１…
…Ｏリング、２２……カバー、２３……窓。
FIG. 1 is a sectional view of a small rapid air valve according to the present invention, FIGS. 2 and 3 are sectional views showing the operating state of the same air valve, and FIG. 4 is a sectional view taken along the - line in FIG. 1. be. 1...Valve box, 2...Valve cover, 3...Large diameter exhaust port, 4...Valve body case, 5...Flange part, 6...
...Large diameter window hole, 7...Small hole, 8...Guide part, 9
... floating valve body, 10 ... float valve, 11 ... float case, 12 ... small diameter exhaust port, 13 ... valve seat, 14 ... valve seat holder, 15 ... guide rod, 16 ...
...Protrusion, 17...Guide hole, 18...Slit, 19...Window hole, 20...Gasket, 21...
...O-ring, 22...cover, 23...window.
Claims (1)
トを介して着脱自在に取付け、前記弁箱内に弁体
ケースを吊垂状態に配設し、該弁体ケース内に上
下動自在に遊動弁体とフロート弁とフロートケー
スとを収納し、前記弁体ケースは上部寄りに複数
の大径の窓孔を形成し、底部寄りに小孔を設ける
と共に内側面に縦方向に複数のガイド部を設けた
構成にし、前記遊動弁体は円柱状に形成すると共
に、一側縁寄りに小径の排気口を貫通して設け、
該排気口の下部に弁座を突出して設けると共に、
該弁座に近接して一対のガイド杆を下向きに取付
け、該ガイド杆に対応し且つ遊嵌するガイド孔を
前記フロート弁に設け、該フロート弁を包有させ
且つ多数の窓孔を有する前記フロートケースを前
記遊動弁体に取付けたことを特徴とする小型急速
空気弁。 ２ 前記遊動弁体及びフロート弁はニトリルゴム
の発泡体である前記１項記載の小型急速空気弁。[Scope of Claims] 1. A valve cover having an exhaust port is removably attached to the upper part of a valve box via a gasket, a valve body case is disposed in a hanging state within the valve body, and a valve body case is disposed in a suspended state within the valve body case. A floating valve body, a float valve, and a float case are housed in the housing so as to be able to move up and down, and the valve body case has a plurality of large-diameter window holes near the top, a small hole near the bottom, and vertical holes on the inside surface. The floating valve body has a configuration in which a plurality of guide portions are provided in the direction, and the floating valve body is formed in a cylindrical shape, and a small-diameter exhaust port is provided near one side edge so as to pass through the valve body,
A valve seat is provided protrudingly at the bottom of the exhaust port, and
A pair of guide rods are mounted downward near the valve seat, guide holes corresponding to and loosely fitted to the guide rods are provided in the float valve, and the float valve is enclosed and has a large number of window holes. A small rapid air valve characterized in that a float case is attached to the floating valve body. 2. The small rapid air valve according to item 1, wherein the floating valve body and the float valve are made of nitrile rubber foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9929487A JPS63266283A (en) | 1987-04-22 | 1987-04-22 | Small-sized high speed air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9929487A JPS63266283A (en) | 1987-04-22 | 1987-04-22 | Small-sized high speed air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63266283A JPS63266283A (en) | 1988-11-02 |
| JPH0472114B2 true JPH0472114B2 (en) | 1992-11-17 |
Family
ID=14243617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9929487A Granted JPS63266283A (en) | 1987-04-22 | 1987-04-22 | Small-sized high speed air valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63266283A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09189367A (en) * | 1996-01-10 | 1997-07-22 | Maezawa Kiyuusou Kogyo Kk | Air valve |
| JP2001132862A (en) * | 1999-11-08 | 2001-05-18 | Asahi Organic Chem Ind Co Ltd | Air valve |
| JP2002022043A (en) * | 2000-07-05 | 2002-01-23 | Sumida Tekko Kk | Air valve |
-
1987
- 1987-04-22 JP JP9929487A patent/JPS63266283A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09189367A (en) * | 1996-01-10 | 1997-07-22 | Maezawa Kiyuusou Kogyo Kk | Air valve |
| JP2001132862A (en) * | 1999-11-08 | 2001-05-18 | Asahi Organic Chem Ind Co Ltd | Air valve |
| JP2002022043A (en) * | 2000-07-05 | 2002-01-23 | Sumida Tekko Kk | Air valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63266283A (en) | 1988-11-02 |
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