JPH0128069Y2 - - Google Patents
Info
- Publication number
- JPH0128069Y2 JPH0128069Y2 JP8713084U JP8713084U JPH0128069Y2 JP H0128069 Y2 JPH0128069 Y2 JP H0128069Y2 JP 8713084 U JP8713084 U JP 8713084U JP 8713084 U JP8713084 U JP 8713084U JP H0128069 Y2 JPH0128069 Y2 JP H0128069Y2
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- valve
- handle
- nozzle
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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
本願は給油作業に不慣な顧客自身が給油を行な
うセルフサービス方式の給油所において特に有益
な給油ノズルに関するものである。[Detailed description of the invention] (a) Industrial application field The present application relates to a refueling nozzle that is particularly useful in self-service refueling stations where customers who are inexperienced in refueling refuel themselves.
(ロ) 従来技術とその問題点
セルフサービス方式を採用している給油所のノ
ズルは燃料タンクが満たんになつて油面がノズル
の筒先に達すると内蔵弁が自動的に閉じる自動弁
閉止機構を備えたものが使われているが安全のた
めに作業者が作業位置から離れるとすなわちノズ
ルの開弁用レバーから手を離すとレバーが戻り、
内蔵弁が閉じて給油が停止するようにレバー係止
手段が取り外されている。この場合内蔵弁は通常
油の圧力と閉弁用スプリングの弾性に抗して開か
れる構造となつており、多量の油を給油しようと
すると長時間レバーを前記力に抗して引き続けな
ければならず、特に女性客には負担が大きく指が
痛くなる。一方、特開昭50−92516にみられるよ
うにノズルの吐出パイプが自動車の給油口へセツ
トされると給油口内壁に係接して満たん時に作動
する自動閉弁装置に通じる空気導管(負圧補償
路)の閉塞を解除する機構を備えたものが提案さ
れている。(b) Conventional technology and its problems The nozzle at a gas station that uses a self-service system has an automatic valve closing mechanism that automatically closes the built-in valve when the fuel tank is full and the oil level reaches the tip of the nozzle. However, for safety reasons, when the operator leaves the working position, that is, when the operator releases the nozzle valve opening lever, the lever returns to its original position.
The lever locking means is removed so that the built-in valve closes and refueling stops. In this case, the built-in valve is normally opened against the pressure of the oil and the elasticity of the valve-closing spring, so if you try to replenish a large amount of oil, you will have to keep pulling the lever against the force for a long time. This puts a heavy burden on female customers in particular and causes pain in their fingers. On the other hand, as seen in Japanese Patent Laid-Open No. 50-92516, when the discharge pipe of the nozzle is set in the fuel filler port of a car, it engages with the inner wall of the fuel filler port and is connected to an automatic valve-closing device that operates when the filler filler is full (an air conduit (negative pressure). A device equipped with a mechanism for releasing the blockage of the compensation path) has been proposed.
これによると吐出パイプがうまく閉塞解除が行
なわれる位置にセツトされることが条件となり自
動車の給油口形状を全て統一する必要が生じる
他、うまくセツトさえされていれば作業者が給油
位置から離れることが可能となるので自動閉弁装
置が不良のときに油があふれて事故につながる恐
れがある。 According to this, the condition is that the discharge pipe is set in a position where the blockage can be cleared successfully, which necessitates a uniformity in the shape of all fuel filler ports in automobiles, and if the discharge pipe is properly set, the operator will not be able to leave the refueling position. If the automatic valve closing device is defective, oil may overflow and cause an accident.
(ハ) 問題点を解決するための構成および作用
本願は前記問題点に鑑み提案するもので、満た
ん自動弁閉止機構を利用することによりレバーを
開弁状態で係止するレバー係止手段を備えていて
も作業者が作業位置から離れようとして把手から
手を離すとこれを検知して油吐出を停止し、安全
を確保するとともに作業者への負担を軽くするも
のであり、その構成は、把手と吐出パイプを備
え、ノズル本体内を貫流する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
た負圧が導びかれる負圧発生室と、この負圧発生
室における負圧の強さに応じて変位し弱いと定位
置をとり強いと弁閉止位置をとるダイアフラム
と、ダイアフラムの弁閉止位置への変位に連動し
て前記内蔵弁を自動閉止する弁閉止機構と、前記
負圧発生室内を前記吐出パイプ先端において大気
に連通させて負圧発生を補償する負圧補償路と、
この負圧補償路を閉塞あるいは開放する弁体とを
有するノズルにおいて、ノズル本体に揺動可能に
支承され作用端が前記把手に沿う位置へ延長され
るとともに前記弁体に係接され、さらに作用端の
把手方向への揺動と前記弁体の前記負圧補償路の
閉塞を解除する方向の変位とを一致させた作動片
と、作用端を把手から離隔させる方向へ付勢する
手段とを設けたもので、把手と一緒に作動片を握
ると負圧補償路の閉塞が解除され、一方把手から
手を離すと負圧補償路が閉塞されてこのとき給油
中であると弁閉止機構が働いてただちに内蔵弁を
閉止させる。(c) Structure and operation for solving the problem The present application proposes a lever locking means that locks the lever in the open state by using an automatic valve closing mechanism. Even if the worker is equipped with the system, if the worker removes his/her hand from the handle in order to leave the working position, this will be detected and the oil discharge will be stopped, ensuring safety and reducing the burden on the worker. , a built-in valve that is equipped with a handle and a discharge pipe and opens and closes an oil flow path flowing through the nozzle body, and a negative pressure generating means that 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 diaphragm that displaces depending on the strength of the negative pressure in this negative pressure generation chamber, and takes a fixed position when it is weak and a valve closing position when it is strong; a valve closing mechanism that automatically closes the built-in valve in conjunction with displacement to the valve closing position; 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;
In a nozzle having a valve body that closes or opens this negative pressure compensation path, the nozzle body is swingably supported, the working end is extended to a position along the handle, and is engaged with the valve body, and further has an active end. an actuating piece in which the swinging of the end toward the handle coincides with the displacement of the valve body in the direction of unblocking the negative pressure compensation path; and means for biasing the working end in the direction of separating the working end from the handle. When the actuating piece is squeezed together with the handle, the negative pressure compensation path is unblocked, and when the handle is released, the negative pressure compensation path is closed, and if refueling is in progress at this time, the valve closing mechanism is activated. works and immediately closes the built-in valve.
(ニ) 実施例
1はノズルNの本体で、把手2が一体的に形成
され吐出パイプ3が接続されている。4はノズル
N内を貫通している流路、5は流路4を開閉する
内蔵弁、6は弁5を開閉操作するレバーで、その
右端6′を係止片7の段部7a,7b,7cのど
れかに引掛けることによつて弁5を開弁状態で係
止しておくことができる。(iv) Example 1 is a main body of a nozzle N, to which a handle 2 is integrally formed and a discharge pipe 3 is connected. Reference numeral 4 denotes a flow path penetrating the inside of the nozzle N, 5 a built-in valve for opening and closing the flow path 4, 6 a lever for opening and closing the valve 5, and its right end 6' connected to the steps 7a and 7b of the locking piece 7. , 7c, the valve 5 can be held in an open state.
8はダイアフラム室でダイアフラム9によつて
上室(負圧発生室)8aと下室8bとに分画され
ている。 A diaphragm chamber 8 is divided by a diaphragm 9 into an upper chamber (negative pressure generating chamber) 8a and a lower chamber 8b.
10は上室8aと流路4との連絡路で流路4に
開口している。 10 is a communication path between the upper chamber 8a and the flow path 4, and is open to the flow path 4.
11は吐出パイプ3に固定内挿され、一端が前
記連絡路10に連通し他端11′が吐出パイプ3
の開口部付近で外側に開口する負圧補償用のチユ
ーブである。 11 is fixedly inserted into the discharge pipe 3, one end communicates with the communication path 10 and the other end 11' connects to the discharge pipe 3.
This is a tube for negative pressure compensation that opens outward near the opening of the tube.
周知のように開口端11′が大気に対して開か
れているときは、弁5の開弁時に流路4を貫流す
る油の流れによつて発生される負圧を補償阻止
し、開口端11′が被給油タンク(図示略)内の
油面の上昇によつて閉止されたときは上室8a内
に発生した負圧がダイアフラム9を上方へ引き上
げる。 As is well known, when the open end 11' is open to the atmosphere, the negative pressure generated by the flow of oil flowing through the flow path 4 when the valve 5 is opened is compensated and prevented, and the open end 11' is opened to the atmosphere. When the oil tank 11' is closed due to a rise in the oil level in the tank (not shown), the negative pressure generated in the upper chamber 8a pulls the diaphragm 9 upward.
12はこのダイアフラム9の上方への変位によ
つてレバー6の係止を解除し弁5がスプリング1
3と油圧力とによつて閉止することを可能ならし
める弁閉止機構である。 12 releases the lock of the lever 6 by the upward displacement of the diaphragm 9, and the valve 5 is moved by the spring 1.
3 and hydraulic pressure.
以上の構成および動作は公知のところであるの
で、詳細な説明は省略するが、ダイアフラム9が
第1図における定位置から上方の弁閉止位置へ変
位することによつて弁閉止機構12が弁を閉じる
ように動作する。 Since the above configuration and operation are well known, a detailed explanation will be omitted, but the valve closing mechanism 12 closes the valve by displacing the diaphragm 9 from the normal position in FIG. 1 to the upper valve closing position. It works like this.
14はダイアフラム室8の上室8aとチユーブ
11とを連絡する負圧補償路20を閉塞あるいは
開放する弁体で、その下端が本体1内に押込まれ
たとき補償路20は閉塞され、引き出されたとき
開放される。 Reference numeral 14 denotes a valve body that closes or opens a negative pressure compensation path 20 connecting the upper chamber 8a of the diaphragm chamber 8 and the tube 11. When the lower end of the valve body is pushed into the main body 1, the compensation path 20 is closed and pulled out. It will be released when
15はダイアフラム室8のキヤツプ16に植設
した軸17を支点として回転可能な作動片で、作
動片15の左端15′には弁体14の上端が係着
されており、作用端である右端15″は把手2に
沿つて延長されている。 Reference numeral 15 denotes an actuating piece that is rotatable about a shaft 17 installed in the cap 16 of the diaphragm chamber 8. The upper end of the valve body 14 is attached to the left end 15' of the actuating piece 15, and the right end, which is the working end, is attached to the left end 15'. 15'' extends along the handle 2.
18は作動片15を図で常に反時計方向へすな
わち弁体14を押込む方向へ付勢しているスプリ
ングで、19はホースである。 18 is a spring that always biases the actuating piece 15 counterclockwise in the figure, that is, in the direction of pushing the valve body 14, and 19 is a hose.
以上の構成において、給油に際してノズルNを
非給油時位置たとえばノズル収納ケース(図示
略)から取り出すとき必然的に把手2を握ること
になるが、この時把手2と一緒に作動片15も握
ることになり、作動片15が軸17を中心として
スプリング18の弾性に抗して時計方向へ回転変
位し、第1図の状態となる。この操作で弁体14
は引き上げられ補償路20が開放される。この状
態において第1図でレバー6をスプリング13の
弾性と油圧力に抗して実線の位置から二点鎖線の
位置へ変位させると弁5が二点鎖線位置まで開
き、ホース19を介して圧送されてくる油を通過
させ、吐出パイプ3から給油が行なわれ、この時
上室8a内で発生される負圧はパイプ11、補償
路20を通つて補給される空気によつて打消され
る。 In the above configuration, when refueling the nozzle N is taken out from the non-refueling position, for example, from the nozzle storage case (not shown), the handle 2 is inevitably grasped, but at this time, the actuating piece 15 must also be grasped together with the handle 2. Then, the operating piece 15 rotates clockwise about the shaft 17 against the elasticity of the spring 18, resulting in the state shown in FIG. With this operation, the valve body 14
is pulled up and the compensation path 20 is opened. In this state, when the lever 6 is displaced from the position shown by the solid line to the position shown by the chain double-dashed line in FIG. The incoming oil is passed through and oil is supplied from the discharge pipe 3, and the negative pressure generated in the upper chamber 8a at this time is canceled out by air supplied through the pipe 11 and the compensation path 20.
通常レバー6を引き続けるのは指が疲れるの
で、係止片7の段部7a,7b,7cのどれかに
(第1図では7c)へ掛け止めておく。 Normally, it would be tiring for the fingers to keep pulling the lever 6, so it should be hooked onto one of the steps 7a, 7b, and 7c of the locking piece 7 (7c in FIG. 1).
こうすることにより給油が継続されるが、タン
ク(図示略)が満たんとなり油面が上昇してチユ
ーブ11の開口端11′を閉じると空気の補給が
できなくなるので周知のように上室8aが負圧と
なつてこの負圧がスプリング9′の弾性に打勝つ
てダイアフラム9が上方へ変位され、弁閉止機構
が動作して弁5が流路4を閉じることになる。 By doing this, refueling is continued, but when the tank (not shown) is filled and the oil level rises and the open end 11' of the tube 11 is closed, air cannot be replenished, so as is well known, the upper chamber 8a becomes a negative pressure, and this negative pressure overcomes the elasticity of the spring 9', displacing the diaphragm 9 upward, and the valve closing mechanism operates, causing the valve 5 to close the flow path 4.
次に、作業者が不注意にあるいは何らかの事故
で給油位置から離れた場合について第2図に基づ
いて説明すると、作業者が把手2から手を離すこ
とによつて作動片15も開放されるので、作動片
15はスプリング18の弾性によつて軸17を中
心に反時計方向へ回転して図の位置までくる。 Next, if the operator leaves the refueling position due to carelessness or some kind of accident, this will be explained based on FIG. 2. When the operator releases the handle 2, the operating piece 15 will also be released. , the actuating piece 15 is rotated counterclockwise about the shaft 17 by the elasticity of the spring 18 to the position shown in the figure.
すると、この時作動片15の左端15′が弁体
14を押込み、弁体14によつて補償路20が閉
塞されるので、開口端11′からの空気の補給が
できなくなり、すなわち上室8a内の負圧が大き
くなるのでスプリング9′によつてダイアフラム
9を定位置へ止めることが不可能となりダイアフ
ラム9は上方へ変位される。 At this time, the left end 15' of the actuating piece 15 pushes the valve body 14, and the compensation path 20 is closed by the valve body 14, so that air cannot be supplied from the open end 11', that is, the upper chamber 8a As the negative pressure inside increases, it becomes impossible for the spring 9' to hold the diaphragm 9 in place, and the diaphragm 9 is displaced upward.
ダイアフラム9の上方への変位は弁閉止機構1
2を先に説明した満たん時と同様に動作させ、レ
バー6が係止片7によつて係止されていても弁5
をスプリング13の弾性と油圧力とによつて変位
させ、流路4を閉じて給油を停止させる。 The upward displacement of the diaphragm 9 is caused by the valve closing mechanism 1
2 is operated in the same way as when the valve is filled as described above, and even though the lever 6 is locked by the locking piece 7, the valve 5
is displaced by the elasticity of the spring 13 and hydraulic pressure, the flow path 4 is closed, and the oil supply is stopped.
この後引き続き給油を行ないたい時は作動片1
5とともに把手2を握り、レバー6の係止片7に
よる係止を解除させ、弁閉止機構12を復帰さ
せ、その上で再びレバー6を引いて弁5を開けれ
ば良い。 If you want to continue refueling after this, use actuating piece 1.
5 and the handle 2, release the locking of the lever 6 by the locking piece 7, return the valve closing mechanism 12, and then pull the lever 6 again to open the valve 5.
(ホ) 効果
以上詳述した如く把手に沿う位置に作動片の作
用端を配設し、作用端を把手方向へ変位させるこ
とによつて空気補償路の閉止が解除されるように
構成したので、給油中にレバーが開弁位置で係止
されていても作業者が給油中に何らかの理由でノ
ズル把手から手を離すと作動片が復位して空気補
償路が閉止されるので弁閉止機構が動作し、よつ
て油流路の弁が閉じて給油が停止されるので安全
が確保され、レバーを引き続けることによる指へ
の負担がなくなるのである。(E) Effect As detailed above, the working end of the actuating piece is disposed at a position along the handle, and by displacing the working end toward the handle, the air compensation path is unblocked. Even if the lever is locked in the valve open position during refueling, if the operator releases the nozzle handle for some reason during refueling, the actuating piece will return to its position and the air compensation path will be closed, so the valve closing mechanism will not work. As a result, the valve in the oil flow path closes and oil supply is stopped, ensuring safety and eliminating the strain on your fingers from continually pulling the lever.
第1図は内部機構を現わした本願ノズルの図
で、第2図は第1図の状態から各部が変位した状
態を示す図である。
2……把手、5……弁、9……ダイアフラム、
14……弁体、15……作動片。
FIG. 1 is a diagram of the present nozzle showing the internal mechanism, and FIG. 2 is a diagram showing a state in which each part has been displaced from the state in FIG. 1. 2...Handle, 5...Valve, 9...Diaphragm,
14... Valve body, 15... Actuation piece.
Claims (1)
する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、発生した負圧が導びかれる負圧
発生室と、この負圧発生室における負圧の強さに
応じて変位し弱いと定位置をとり強いと弁閉止位
置をとるダイアフラムと、ダイアフラムの弁閉止
位置への変位に連動して前記内蔵弁を自動閉止す
る弁閉止機構と、前記負圧発生室内を前記吐出パ
イプ先端において大気に連通させて負圧発生を補
償する負圧補償路と、この負圧補償路を閉塞ある
いは開放する弁体とを有するノズルにおいて、ノ
ズル本体に揺動可能に支承され作用端が前記把手
に沿う位置へ延長されるとともに前記弁体に係接
され、さらに作用端の把手方向への揺動と前記弁
体の前記負圧補償路の閉塞を解除する方向の変位
とを一致させた作動片と、作用端を把手から離隔
させる方向へ付勢する手段とを設けた給油ノズ
ル。 A built-in valve that is equipped with a handle and a discharge pipe and opens and closes an oil flow path flowing through the nozzle body, and a negative pressure generating means that 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 diaphragm that is displaced depending on the strength of the negative pressure in the negative pressure generation chamber, and takes a fixed position when it is weak and a valve closing position when it is strong, and a valve of the diaphragm. a valve closing mechanism that automatically closes the built-in valve in conjunction with displacement to a closed position; 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; In a nozzle having a valve body that closes or opens a negative pressure compensation path, the nozzle is swingably supported by the nozzle body, and has an operating end that extends to a position along the handle and is engaged with the valve body, an actuating piece whose rocking toward the handle coincides with a displacement of the valve body in a direction to unblock the negative pressure compensating path; and means for biasing the working end in a direction away from the handle. Refueling nozzle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8713084U JPS613300U (en) | 1984-06-11 | 1984-06-11 | Refueling nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8713084U JPS613300U (en) | 1984-06-11 | 1984-06-11 | Refueling nozzle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS613300U JPS613300U (en) | 1986-01-10 |
JPH0128069Y2 true JPH0128069Y2 (en) | 1989-08-25 |
Family
ID=30639066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8713084U Granted JPS613300U (en) | 1984-06-11 | 1984-06-11 | Refueling nozzle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS613300U (en) |
-
1984
- 1984-06-11 JP JP8713084U patent/JPS613300U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS613300U (en) | 1986-01-10 |
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