JPH0128079Y2 - - Google Patents
Info
- Publication number
- JPH0128079Y2 JPH0128079Y2 JP10506684U JP10506684U JPH0128079Y2 JP H0128079 Y2 JPH0128079 Y2 JP H0128079Y2 JP 10506684 U JP10506684 U JP 10506684U JP 10506684 U JP10506684 U JP 10506684U JP H0128079 Y2 JPH0128079 Y2 JP H0128079Y2
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- discharge pipe
- chamber
- valve
- path
- 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
- 238000012856 packing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は給油所で使用される給油機に接続され
た満たん自動弁閉止機構を備えたノズルに関する
ものである。[Detailed description of the invention] (a) Industrial application field The present invention relates to a nozzle equipped with an automatic filling valve closing mechanism connected to a refueling machine used at a refueling station.
(ロ) 従来技術
ノズル本体内に負圧発生手段とこれに繋がる負
圧発生室を有し、常時は吐出管先端から供給され
る空気によつて負圧の発生を補償阻止し、吐出管
先端が上昇してきた油面によつて閉じられた時発
生した負圧がダイアフラムを変位させて内蔵弁が
自動的に閉止される方式のノズルが広く使用され
ている。また近年顧客自身が給油を行なうセルフ
サービス方式が注目されているが、顧客は給油作
業に不慣なため吐出管を自動車の給油口へ挿入す
るまえにたとえばノズルを給油機から取り外した
時にレバーを引いて油を噴出させせる恐れがあ
り、このための対策の一方法としてUSP3548893
にみられるように吐出管が上方を向いていると空
気補償路を閉塞体で閉じさせることによつて弁閉
止機構を動作させ、内蔵弁を閉止させることが行
なわれている。しかし、この方法において空気補
償路が複雑な形状の通路を有しているために補償
路そのものや本体内に閉塞体室があるものはその
加工が困難であつたり、油流路に閉塞体室がある
ものは油の流れ抵抗が大きくなつて負圧の発生が
悪くなり満たん時の自動停止が阻害さるなどの問
題点があつた。(b) Prior art The nozzle body has a negative pressure generating means and a negative pressure generating chamber connected to the negative pressure generating means, and the generation of negative pressure is normally compensated for and prevented by air supplied from the tip of the discharge pipe, and Nozzles are widely used in which the negative pressure generated when the oil level is closed by the rising oil level displaces the diaphragm and automatically closes the built-in valve. In recent years, self-service systems in which customers refuel themselves have been attracting attention, but because customers are not accustomed to refueling, they often have to press the lever when removing the nozzle from the refueling machine before inserting the discharge pipe into the car's refueling port. USP3548893 is one way to prevent this from happening.
When the discharge pipe faces upward, as shown in Figure 2, the air compensation path is closed with a blocker to operate the valve closing mechanism and close the built-in valve. However, in this method, since the air compensation path has a passage with a complicated shape, it is difficult to process the compensation path itself or a structure that has a closed body chamber in the main body, or it is difficult to process the air compensation path itself or the body with a closed body chamber. Some types had problems such as increased oil flow resistance, difficulty in generating negative pressure, and inhibiting automatic stop when the tank was filled.
(ハ) 目的
本願は前記した油噴出事故を防止するために閉
塞体を設置するにあたつて閉塞体以外に部品を追
加する必要がなく、加工やメンテナンスが容易
で、しかしながら機能を損なうことなく安価なノ
ズルを得ることを目的とする。(C) Purpose The present invention is designed to prevent the above-mentioned oil spout accidents by eliminating the need to add any parts other than the blocker when installing the blocker, making it easy to process and maintain, and without impairing functionality. The purpose is to obtain an inexpensive nozzle.
(ニ) 構成と作用
前記目的を達成するための構成は、下流端に吐
出管が接続され、ノズル本体内の油流路を開閉す
る内蔵弁と、この流路に連通し流路中の油の流動
によつて負圧を発生させる負圧発生手段と、発生
した負圧が導かれる負圧発生室と、この負圧発生
室内の負圧を受けて変位するダイアフラムに連動
して前記内蔵弁を自動閉止する弁閉止機構と、負
圧発生室内を前記吐出管先端で大気に連通させて
負圧発生を補償する負圧補償路と、吐出管が上方
を向くとこの負圧補償路を閉塞する閉塞体とを備
えたノズルにおいて、吐出管と本体とが板状パツ
キンを挟んでフランジ接続されるようになすとと
もに、本体フランジ面に前記本体側の負圧補償路
に繋がり、前記閉塞体の外形より大きくその奥が
小さくなつた閉塞体室を吐出管の流入端側中心軸
と略平行な方向に形成し、閉塞体室へ閉塞体を遊
接し、一方パツキンには閉塞体よりも幅の狭い長
孔を穿孔してこの長孔を介して閉塞体室と吐出管
側の負圧補償路とを連通させたもので、吐出管が
下方を向いているときはパツキンの長孔により閉
塞体の吐出管側への移動を規制するとともに長孔
における空気の通過を良好なものとし、一方吐出
管が上方を向いているときは閉塞体によつて空気
補償路が閉塞される。(d) Structure and operation The structure for achieving the above purpose includes a discharge pipe connected to the downstream end, a built-in valve that opens and closes the oil flow path in the nozzle body, and a built-in valve that opens and closes the oil flow path in the nozzle body. a negative pressure generating means that generates negative pressure by the flow of water; a negative pressure generating chamber to which the generated negative pressure is guided; a valve closing mechanism that automatically closes the valve, a negative pressure compensation path that communicates the negative pressure generation chamber with the atmosphere at the tip of the discharge pipe to compensate for negative pressure generation, and a negative pressure compensation path that closes off when the discharge pipe faces upward. In the nozzle, the discharge pipe and the main body are connected by a flange with a plate-shaped packing in between, and the negative pressure compensating path on the main body side is connected to the flange surface of the main body, and the A closed body chamber that is larger than the outer shape and smaller in depth is formed in a direction approximately parallel to the central axis of the inflow end side of the discharge pipe, and the closed body is in loose contact with the closed body chamber, while the gasket has a width smaller than that of the closed body. A narrow elongated hole is drilled and the obturator chamber communicates with the negative pressure compensating path on the discharge pipe side through this elongated hole. The air compensation path is blocked by the blocking body when the discharge pipe is directed upward.
(ホ) 実施例 以下図示例をもとに説明する。(e) Examples The explanation will be given below based on the illustrated example.
１はノズルＮの本体で、把手２やレバーガード
３が一体的に形成され、内部の流路４には内蔵弁
５が、さらに自動弁閉止機構１０を構成するダイ
アフラム６、弁棒７、作動片８、係止用ローラー
９などが配備されている。 Reference numeral 1 denotes the main body of the nozzle N, in which a handle 2 and a lever guard 3 are integrally formed, a built-in valve 5 is installed in an internal flow path 4, and a diaphragm 6, a valve stem 7, and an actuator that constitute an automatic valve closing mechanism 10 are installed. A piece 8, a locking roller 9, etc. are provided.
１１はダイアフラム室で、ダイアフラム６によ
つて上室（負圧発生室）１２と下室１３とに分画
されている。 Reference numeral 11 denotes a diaphragm chamber, which is divided by the diaphragm 6 into an upper chamber (negative pressure generating chamber) 12 and a lower chamber 13.
１４は吐出管でその流入側端１４′はフランジ
１５に固設されており、このフランジ１５と本体
１に形成されたフランジ面１６とがパツキン１７
を挾んでネジ１８によつて接続されている。 14 is a discharge pipe whose inflow side end 14' is fixed to a flange 15, and this flange 15 and a flange surface 16 formed on the main body 1 are connected to a packing 17.
are connected by screws 18.
１９は閉塞体（スチールボール）２０を収納す
べくフランジ面１６に吐出管１４の流入端側中心
軸とほぼ平行な方向に形成された閉塞体室で、本
体側空気補償路２１を介して上室１２へ連通して
いる。 Reference numeral 19 denotes a closure chamber formed on the flange surface 16 in a direction substantially parallel to the center axis on the inflow end side of the discharge pipe 14 to accommodate the closure body (steel ball) 20. It communicates with room 12.
２２は吐出管側空気補償路で、一方端は吐出管
１４の先端で管外に開口し、他方端はフランジ１
５の切欠１５′へ開口しており両補償路２１，２
２はパツキン１７に穿孔された閉塞体２０より幅
の狭い長孔２３を介して連通している。 22 is a discharge pipe side air compensation path, one end of which opens outside the pipe at the tip of the discharge pipe 14, and the other end of which is connected to the flange 1.
5 and opens into the notch 15' of both compensation paths 21, 2.
2 communicate with each other through an elongated hole 23 that is narrower than the closure body 20 and is bored in the packing 17.
２４は本体１に植設された軸２５を中心に回転
可能なレバーで、把手２を握つてレバー２４を引
くと弁棒７が作動片８とともに図で右方へ変位さ
れ弁５が流路４を開くことになる。 Reference numeral 24 denotes a lever rotatable around a shaft 25 implanted in the main body 1. When the handle 2 is grasped and the lever 24 is pulled, the valve stem 7 is displaced to the right in the figure together with the actuating piece 8, and the valve 5 is moved into the flow path. 4 will be opened.
なお、給油中において流路４内を貫流する油に
よつて上室１２に発生する負圧は補償路２２、長
孔２３、室１９、補償路２１を介して流入する空
気によつてその発生が補償阻止されているが油面
が上昇して補償路２２から空気の供給が断たれる
と上室１２内の負圧の発生を阻止し得なくなりこ
の時ダイアフラム６はローラー９を伴なつて上方
へ変位しローラー９による弁棒７と作動片８との
間の係止が解除されて弁５が流路４を閉止し給油
が停止される。この時の自動弁閉止機構１０の動
作およびその構造についてはすでに公知であるの
でさらに詳細な説明は省略する。 Note that the negative pressure generated in the upper chamber 12 by the oil flowing through the flow path 4 during refueling is caused by the air flowing in through the compensation path 22, the elongated hole 23, the chamber 19, and the compensation path 21. However, when the oil level rises and the supply of air from the compensation path 22 is cut off, it becomes impossible to prevent the generation of negative pressure in the upper chamber 12, and at this time, the diaphragm 6 is moved along with the roller 9. Displaced upward, the locking between the valve rod 7 and the actuating piece 8 by the roller 9 is released, the valve 5 closes the flow path 4, and oil supply is stopped. Since the operation and structure of the automatic valve closing mechanism 10 at this time are already known, further detailed explanation will be omitted.
以上の構成において、ノズルＮは不使用時に吐
出管１４の先端からの油垂れを防ぐために吐出管
１４を上に向けて待機させている。この状態では
閉塞体２０によつて補償路２１が閉塞され上室１
２への空気の供給が不可能な状態にある。よつ
て、給油開始に際してノズルＮを待機場所から取
り出すとき誤つてレバー２４を引き弁５を開いて
しまつた時油は流路４を通つて吐出パイプ１４か
ら噴出されるが、この時上室１２への空気の補給
が阻止されているので、ここで発生する負圧によ
つてすぐさまダイアフラム６が上方へ変位されて
自動弁閉止機構１０が動作し弁５が閉じられるこ
とになり、吐出管１４からのこれ以上の油吐出は
行なわれない。 In the above configuration, the nozzle N is placed on standby with the discharge pipe 14 facing upward to prevent oil from dripping from the tip of the discharge pipe 14 when not in use. In this state, the compensation path 21 is blocked by the blocker 20 and the upper chamber 1
It is impossible to supply air to 2. Therefore, if the lever 24 is pulled and the valve 5 is opened by mistake when the nozzle N is taken out from the standby place at the start of refueling, the oil will be ejected from the discharge pipe 14 through the flow path 4, but at this time the upper chamber 12 Since the supply of air is blocked, the negative pressure generated here immediately displaces the diaphragm 6 upward, activates the automatic valve closing mechanism 10, and closes the valve 5. No further oil is discharged from the tank.
吐出管１４の先端を燃料タンクの給油口（図示
略）へ挿入するとノズルＮの姿勢は第１図の如く
なつて閉塞体２０が左方へ転動してこれによる補
償路２１の閉塞が解除される。 When the tip of the discharge pipe 14 is inserted into the filler port (not shown) of the fuel tank, the posture of the nozzle N becomes as shown in FIG. 1, and the blocker 20 rolls to the left, thereby unblocking the compensation path 21. be done.
この状態でレバー２４を引いて弁５を開けると
給油が行なわれるが閉塞体２０はパツキン１７の
長孔２３の幅より大きいのでこの時閉塞体２０の
これ以上の左方への転動は阻止されるとともに十
分な空気の流路も確保される。 In this state, when the lever 24 is pulled to open the valve 5, oil is supplied, but since the width of the closing body 20 is larger than the width of the elongated hole 23 of the gasket 17, further rolling of the closing body 20 to the left is prevented at this time. At the same time, a sufficient air flow path is also ensured.
(ヘ) 効果
以上詳述した如くノズルの本体側に閉塞体室を
形成してパツキンに穿接した閉塞体よりも幅の狭
い長孔を介して負圧補償用空気が流入するように
構成したので複雑な形状の空気補償路が単純とな
り閉塞体室の加工も容易になる他油流路の圧力損
失を増大させる等の機能的問題を引起すことなく
十分な機能を発揮させることとノズル製造コスト
を引き下げることが可能となるものである。(f) Effect As detailed above, a closure chamber is formed on the main body side of the nozzle, and negative pressure compensating air is configured to flow in through an elongated hole that is narrower in width than the closure body that is in contact with the seal. This simplifies the air compensation path, which has a complicated shape, and makes it easier to process the blockage chamber.In addition, it is possible to achieve sufficient functionality without causing functional problems such as increasing pressure loss in the oil flow path, and to manufacture the nozzle. This makes it possible to reduce costs.
第１図は本願ノズルの要部を断面で示すととも
に断面の一部を第２図における一点鎖線部分であ
らわしたもので、第２図は本体側のフランジ面を
第３図はパツキン形状をそれぞれ示す図である。
１……本体、４……流路、６……ダイアフラ
ム、１０……自動弁閉止機構、１６……フランジ
面、１７……パツキン、２３……長孔。
Figure 1 shows the main parts of the present nozzle in cross section, and a part of the cross section is shown by the dashed-dotted line in Figure 2. Figure 2 shows the flange surface on the main body side, and Figure 3 shows the packing shape. FIG. DESCRIPTION OF SYMBOLS 1... Main body, 4... Flow path, 6... Diaphragm, 10... Automatic valve closing mechanism, 16... Flange surface, 17... Packing, 23... Long hole.
Claims (1)
流路を開閉する内蔵弁と、この流路に連通し流路
中の油の流動によつて負圧を発生させる負圧発生
手段と、発生した負圧が導かれる負圧発生室と、
この負圧発生室内の負圧を受けて変位するダイア
フラムに連動して前記内蔵弁を自動閉止する弁閉
止機構と、負圧発生室内を前記吐出管先端で大気
に連通させて負圧発生を補償する負圧補償路と、
吐出管が上方を向くとこの負圧補償路を閉塞する
閉塞体とを備えたノズルにおいて、吐出管と本体
とが板状パツキンを挟んでフランジ接続されるよ
うになすとともに、本体フランジ面に前記本体側
の負圧補償路に繋がり、前記閉塞体の外形より大
きくその奥が小さくなつた閉塞体室を吐出管の流
入端側中心軸と略平行な方向に形成し、閉塞体室
へ閉塞体を遊接し、一方パツキンには閉塞体より
も幅の狭い長孔を穿孔してこの長孔を介して閉塞
体室と吐出管側の負圧補償路とを連通させたこと
を特徴とする給油ノズル。 A discharge pipe is connected to the downstream end, and a built-in valve opens and closes an oil flow path in the nozzle body, and a negative pressure generating means communicates with this flow path and generates negative pressure by the flow of oil in the flow path. a negative pressure generation chamber to which the generated negative pressure is guided;
A valve closing mechanism that automatically closes the built-in valve in conjunction with a diaphragm that is displaced in response to the negative pressure in the negative pressure generation chamber, and a valve closing mechanism that automatically closes the built-in valve in conjunction with the diaphragm that is displaced in response to the negative pressure in the negative pressure generation chamber, and compensates for the generation of negative pressure by communicating the inside of the negative pressure generation chamber with the atmosphere at the tip of the discharge pipe. a negative pressure compensation path,
In a nozzle equipped with a closing body that blocks this negative pressure compensation path when the discharge pipe faces upward, the discharge pipe and the main body are connected by a flange with a plate-shaped packing sandwiched therebetween, and the above-mentioned A closed body chamber connected to the negative pressure compensation path on the main body side and larger than the outer shape of the closed body and whose depth is smaller is formed in a direction substantially parallel to the central axis on the inflow end side of the discharge pipe, and the closed body chamber is connected to the closed body chamber. are in loose contact with each other, and on the other hand, a long hole narrower in width than the closing body is bored in the gasket, and the closing body chamber and the negative pressure compensating path on the discharge pipe side are communicated through this long hole. nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10506684U JPS6119600U (en) | 1984-07-10 | 1984-07-10 | Refueling nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10506684U JPS6119600U (en) | 1984-07-10 | 1984-07-10 | Refueling nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6119600U JPS6119600U (en) | 1986-02-04 |
| JPH0128079Y2 true JPH0128079Y2 (en) | 1989-08-25 |
Family
ID=30664402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10506684U Granted JPS6119600U (en) | 1984-07-10 | 1984-07-10 | Refueling nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119600U (en) |
-
1984
- 1984-07-10 JP JP10506684U patent/JPS6119600U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6119600U (en) | 1986-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0128079Y2 (en) | ||
| JPH0737781B2 (en) | Engine fuel cock | |
| CA2152445A1 (en) | Temperature and pressure resistant shutoff valve | |
| JPH06183271A (en) | Bent cut valve of fuel tank | |
| JPS6231440Y2 (en) | ||
| JPH0128077Y2 (en) | ||
| JP2519041Y2 (en) | Sealing device for fuel tank filling port | |
| JPS63271020A (en) | Valve structure for cartridge tank | |
| JP2562201Y2 (en) | Fuel tank structure of fuel tank | |
| JPH0128078Y2 (en) | ||
| JP2001349255A (en) | Flexible seal of liquid level operable control valve | |
| JP2616599B2 (en) | Fuel tank evaporative fuel treatment system | |
| JPS592362Y2 (en) | Gas tank with excessive flow rate prevention device | |
| JPS593186Y2 (en) | engine fuel supply system | |
| JPS6211839Y2 (en) | ||
| JPS609518Y2 (en) | oil injection nozzle | |
| JPH0128069Y2 (en) | ||
| JPH0133894Y2 (en) | ||
| JPS6020637Y2 (en) | Liquid supply nozzle | |
| AU536591B2 (en) | Fuel dispensing nozzle | |
| JPH0121263Y2 (en) | ||
| JPS6330718Y2 (en) | ||
| JPS5839884A (en) | Mixing-prevention valve | |
| JPS5847341Y2 (en) | automatic water supply device | |
| JPH0443372Y2 (en) |