JP2005298013A - Oil feed nozzle - Google Patents

Oil feed nozzle Download PDF

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Publication number
JP2005298013A
JP2005298013A JP2004117489A JP2004117489A JP2005298013A JP 2005298013 A JP2005298013 A JP 2005298013A JP 2004117489 A JP2004117489 A JP 2004117489A JP 2004117489 A JP2004117489 A JP 2004117489A JP 2005298013 A JP2005298013 A JP 2005298013A
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Prior art keywords
oil supply
lever
nozzle body
convex portion
main valve
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JP2004117489A
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JP4281111B2 (en
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Takeshi Yamaguchi
武司 山口
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Tatsuno Corp
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Tatsuno Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To surely activate an automatic valve closing mechanism irrespective of a degree that an oil feed lever is pulled. <P>SOLUTION: A nozzle body including a grip 1a and a discharge pipe 2 has a main valve 12 to be opened/closed by the oil feed lever 9 and the automatic valve closing mechanism 5 for closing the main valve 12 when part of the nozzle body is soaked in a liquid. A protrusion 13 abutted with the nozzle body when the oil feed lever 9 is pulled up is formed on the side of the lever 9 facing the nozzle body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、吐出パイプの先端まで液が充填された時点で主弁を自動的に閉弁して液の溢れ出しを防止できる自動閉弁機構を備えた給油ノズル、より詳細には給油レバーの構造に関する。   The present invention relates to an oil supply nozzle having an automatic valve closing mechanism that can automatically close a main valve at the time when liquid is filled up to the tip of a discharge pipe to prevent liquid overflow, and more specifically, an oil supply lever. Concerning structure.

自動閉弁機構を備えた給油ノズルは、特許文献１に見られるように筒先の先端に開口した空気直路管がタンク内の液により閉鎖されると、給液ノズルの縮流部に生じる負圧が自動閉弁機構のダイヤフラムを上方に変形させ、作動杆の係止と解いて付勢力により下方に変位させて開放状態に保持していた主弁を閉じるように構成されている。
特公平３−６４４００号公報 The oil supply nozzle provided with the automatic valve closing mechanism is a negative pressure generated in the constricted portion of the liquid supply nozzle when the straight air pipe opened at the tip of the tube tip is closed by the liquid in the tank as seen in Patent Document 1. Is configured to deform the diaphragm of the automatic valve closing mechanism upward, disengage the locking of the operating rod and displace it downward by the urging force, and close the main valve held in the open state.
Japanese Examined Patent Publication No. 3-64400

このような自動閉弁機構を備えた給油ノズルは、セルフ給油ステーションなどで多様されているが、給油になれない顧客の中には給油レバーを強く握り過ぎる者もいるため、液位が所定位置に到達して自動閉弁機構が作動しても、主弁が依然として給油レバーに支持された状態を維持して閉弁しないという不都合が生じる恐れがある。
本発明はこのような問題に鑑みてなされたものであってその目的とするところは、給油レバーの引き加減にかかわりなく、確実に自動閉弁機構を作動させることができる給油ノズルを提供することである。 Oil nozzles equipped with such an automatic valve closing mechanism are widely used in self-fueling stations, etc., but some customers who are not able to refuel do not hold the oil lever too strongly. Even if the automatic valve closing mechanism is actuated after reaching, there may be a disadvantage that the main valve is still supported by the fuel supply lever and does not close.
The present invention has been made in view of such problems, and an object of the present invention is to provide a fueling nozzle that can reliably operate an automatic valve closing mechanism regardless of whether the fueling lever is pulled or not. It is.

このような課題を達成するために請求項１の発明は、握り部と吐出パイプとを備えたノズル本体に、給油レバーにより開閉される主弁と、前記ノズル本体の一部が液に浸漬されたとき前記主弁を閉弁させる自動閉弁機構を備え、前記給油レバーの前記ノズル本体と対向する側に、前記給油レバーの引き上げ時に前記ノズル本体に当接する凸部が形成されている。   In order to achieve such a problem, the invention of claim 1 is characterized in that a main body that is opened and closed by an oil supply lever and a part of the nozzle body are immersed in a liquid in a nozzle body having a grip portion and a discharge pipe. And an automatic valve closing mechanism that closes the main valve, and a convex portion that contacts the nozzle body when the oiling lever is lifted is formed on a side of the oiling lever that faces the nozzle body.

凸部により給油レバーの支点が強制的に主弁から遠い位置に形成されるため、主弁の付勢力が把持力に打ち勝って自動閉弁機構の作動により閉弁する。   Since the fulcrum of the oil supply lever is forcibly formed at a position far from the main valve by the convex portion, the urging force of the main valve overcomes the gripping force and closes by the operation of the automatic valve closing mechanism.

そこで以下に本発明の詳細を図示した実施例に基づいて説明する。
図１は、本発明が特徴とする給油ノズルの一実施例を示すもので、ノズル本体１は、特許文献１に詳述されているように構成されている。
すなわち、吐出パイプ２の先端に開口部３ａを有する空気直路管３がタンク内の液により閉鎖されると、縮流部４に生じる負圧が自動閉弁機構５のダイヤフラム６を上方に変形させ、作動杆７の係止と解いてバネ８の付勢力により下方に変位させる。 Therefore, details of the present invention will be described below based on the illustrated embodiment.
FIG. 1 shows an embodiment of a fueling nozzle characterized by the present invention, and a nozzle body 1 is configured as described in detail in Patent Document 1.
That is, when the air straight pipe 3 having the opening 3a at the tip of the discharge pipe 2 is closed by the liquid in the tank, the negative pressure generated in the flow contracting section 4 deforms the diaphragm 6 of the automatic valve closing mechanism 5 upward. When the operating rod 7 is unlocked, it is displaced downward by the biasing force of the spring 8.

これにより作動杆７の下端に枢支された給油レバー９が、図中下方に変位して主弁杆１０をバネ１１の付勢力により変位させて開放状態を保持していた主弁１２を閉じるように構成されている。   As a result, the refueling lever 9 pivotally supported at the lower end of the operating rod 7 is displaced downward in the figure to displace the main valve rod 10 by the urging force of the spring 11 and close the main valve 12 which has been kept open. It is configured as follows.

給油レバー９は、ノズル本体、より詳細には握り部１ａに対向する面（図では上面）の、ほぼ中央よりも握り部側の端部寄り（図中、右方側）に凸部１３が形成されている（図２参照）。
給油レバーが強い力で引き上げられた場合には、凸部が給油ノズル本体に当接するため、図３(イ)に示したように凸部１３が支点を形成するように給油レバー９が引き上げられた状態、つまり主弁１２からの力点Ｆ２と支点１３の距離Ｌ２によるモーメントが、レバーの把持力Ｆ１によるモーメント（Ｆ１×Ｌ１）よりも相対的に大きくなる。 The oil supply lever 9 has a convex portion 13 on the nozzle body, more specifically, on the surface (upper surface in the drawing) facing the grip portion 1a, closer to the grip portion side end than the center (right side in the drawing). It is formed (see FIG. 2).
When the oil supply lever is pulled up with a strong force, the convex portion comes into contact with the oil supply nozzle body, so that the oil supply lever 9 is pulled up so that the convex portion 13 forms a fulcrum as shown in FIG. In other words, the moment due to the distance L2 between the force point F2 from the main valve 12 and the fulcrum 13 is relatively greater than the moment due to the gripping force F1 of the lever (F1 × L1).

この結果、自動閉弁機構５が作動して主弁１２がバネ１１の付勢力により閉弁すると、把持力の如何にかかわりなく給油レバー９が凸部１３を支点として主弁１２に押されて移動して閉弁する。   As a result, when the automatic valve closing mechanism 5 is activated and the main valve 12 is closed by the urging force of the spring 11, the oil supply lever 9 is pushed by the main valve 12 with the convex portion 13 as a fulcrum regardless of the gripping force. Move and close.

そして凸部１３の、給油ノズル本体との対向面を図１に示したように断面円弧に形成すると、給油レバーが凸部１３を中心に回動しやすくなり、より確実に閉弁させることができる。   When the surface of the convex portion 13 facing the oil supply nozzle main body is formed in a circular arc as shown in FIG. 1, the oil supply lever can be easily rotated around the convex portion 13, and the valve can be closed more reliably. it can.

これに対して凸部が存在しない場合には、図３(ロ)に示したように給油レバーが強く握られた状態では、給油レバーの端部側がレバー本体に接触してここに支点Ｐが形成されるため、Ｆ１'＞Ｌ２'／Ｌ１'×Ｆ２となり把持力による引き上げ力が主弁の付勢力を勝るため、主弁１２が移動できず、自動閉弁機構が作動したにもかかわらず開弁状態を維持することになる。   On the other hand, when there is no convex portion, as shown in FIG. 3 (b), in the state where the oil supply lever is gripped strongly, the end portion side of the oil supply lever contacts the lever body and the fulcrum P is located here. As a result, F1 ′> L2 ′ / L1 ′ × F2 and the pulling force by the gripping force exceeds the urging force of the main valve, so the main valve 12 cannot move and the automatic valve closing mechanism is activated The valve open state will be maintained.

図４は、旧来の給油ノズルに本発明を適用する場合の一実施例を示すものであって、凸部形成部材２０は、一方の面に、給油レバーの軽量化のために肉抜きされた溝９ａと係合する係合凸部２０ａを設けて構成されている。   FIG. 4 shows an embodiment in which the present invention is applied to a conventional oil supply nozzle, and the convex portion forming member 20 is thinned on one surface to reduce the weight of the oil supply lever. An engaging projection 20a that engages with the groove 9a is provided.

このように構成された凸部形成部材２０は、その係合凸部２０ａを給油レバー９の溝９ａに位置合わせし、凸部形成部材２０を、給油レバー本体に対向する面にダンボールなどをあてがってプライヤにより給油レバー９とともに挟み込むと、両者が係合して凸部形成部材２０が給油レバー９に固定される。   The convex portion forming member 20 configured as described above aligns the engaging convex portion 20a with the groove 9a of the oil supply lever 9, and applies the corrugated cardboard or the like to the surface facing the fuel lever body. When the pliers are sandwiched together with the fuel supply lever 9, both are engaged to fix the convex portion forming member 20 to the fuel supply lever 9.

なお、必要に応じて凸部形成部材と給油レバーとを構成する材料に対して接着力を有する接着剤で固定するのが望ましい。   In addition, it is desirable to fix with the adhesive which has the adhesive force with respect to the material which comprises a convex part formation member and an oil supply lever as needed.

本発明の給油ノズルの一実施例を示す断面図である。It is sectional drawing which shows one Example of the oil supply nozzle of this invention. 同上給油ノズルの給油レバーの一実施例を示す斜視図である。It is a perspective view which shows one Example of the oil supply lever of an oil supply nozzle same as the above. 図(イ)、(ロ)は、それぞれ開弁時に給油レバーに作用するモーメントを示すための説明図である。FIGS. 1A and 1B are explanatory diagrams for showing moments acting on the oil supply lever when the valve is opened. 同上給油レバーの凸部についての他の実施例を示す図である。It is a figure which shows the other Example about the convex part of an oil supply lever same as the above.

符号の説明Explanation of symbols

１ 給油ノズル本体 １ａ 握り部 ２ 吐出パイプ ５ 自動閉弁機構 ７ 作動杆 ８ バネ ９ 給油レバー １２ 主弁 １３ 凸部 ２０ 凸部形成部材   DESCRIPTION OF SYMBOLS 1 Oil supply nozzle main body 1a Gripping part 2 Discharge pipe 5 Automatic valve closing mechanism 7 Actuation rod 8 Spring 9 Oil supply lever 12 Main valve 13 Convex part 20 Convex part formation member

Claims (5)

握り部と吐出パイプとを備えたノズル本体に、給油レバーにより開閉される主弁と、前記ノズル本体の一部が液に浸漬されたとき前記主弁を閉弁させる自動閉弁機構を備え、
前記給油レバーの前記ノズル本体と対向する側に、前記給油レバーの引き上げ時に前記ノズル本体に当接する凸部が形成されている給油ノズル。 A nozzle body provided with a grip portion and a discharge pipe is provided with a main valve that is opened and closed by an oil supply lever, and an automatic valve closing mechanism that closes the main valve when a part of the nozzle body is immersed in liquid,
An oil supply nozzle in which a convex portion that contacts the nozzle body when the oil supply lever is pulled up is formed on a side of the oil supply lever that faces the nozzle body. 前記凸部が、前記主弁を支持する作動杆と前記握り部側の端部との中間よりも前記握り部の端部側に設けられている請求項１に記載の給油ノズル。 The oil supply nozzle according to claim 1, wherein the convex portion is provided on an end portion side of the grip portion rather than an intermediate between an operating rod supporting the main valve and an end portion on the grip portion side. 前記凸部は、断面が円弧に形成されている請求項１または請求項２に記載の給油ノズル。 The oil supply nozzle according to claim 1, wherein a cross section of the convex portion is formed in a circular arc. 前記凸部は、前記レバーに一体に形成されている請求項１乃至請求項３のいずれかに記載の給油ノズル。 The oil supply nozzle according to claim 1, wherein the convex portion is formed integrally with the lever. 前記凸部が、前記レバーと別部材により構成されている請求項１乃至請求項３のいずれかに記載の給油ノズル。 The oil supply nozzle according to any one of claims 1 to 3, wherein the convex portion is configured by a member separate from the lever.
JP2004117489A 2004-04-13 2004-04-13 Lubrication nozzle Expired - Lifetime JP4281111B2 (en)

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JP4281111B2 JP4281111B2 (en) 2009-06-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100953834B1 (en) * 2008-03-25 2010-04-20 가부시끼가이샤 다쓰노.메카트로닉스 Oil supplying apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100953834B1 (en) * 2008-03-25 2010-04-20 가부시끼가이샤 다쓰노.메카트로닉스 Oil supplying apparatus

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