JP2021075224A - Oil feed device - Google Patents

Oil feed device Download PDF

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JP2021075224A
JP2021075224A JP2019205118A JP2019205118A JP2021075224A JP 2021075224 A JP2021075224 A JP 2021075224A JP 2019205118 A JP2019205118 A JP 2019205118A JP 2019205118 A JP2019205118 A JP 2019205118A JP 2021075224 A JP2021075224 A JP 2021075224A
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nozzle
diameter
refueling
diameter nozzle
small
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JP2021075224A5 (en
JP7192746B2 (en
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波賀野　博之
Hiroyuki Hagano
博之 波賀野
徳彦 石原
Norihiko Ishihara
徳彦 石原
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Abstract

To prevent erroneous insertion of a fuel feed nozzle by discriminating a small-diameter oil feed nozzle unsuitable for an oil feed device.SOLUTION: An oil feed device FS comprises: a valve discrimination unit 50 that is provided in a reach range of an oil feed nozzle FN inserted from an oil feed port 22 and constitutes a continuous opening GL formed of a first portion serving as an opening corresponding to an outside diameter of a small-diameter nozzle FNS smaller in outside diameter than the oil feed nozzle suitable for the oil feed device FS and a second portion serving as an opening with a shape corresponding to an outside diameter of a large-diameter nozzle FNL suitable for the oil feed device FS; a contact member 57 with which a leading end of the small-diameter nozzle FNS introduced into the first portion of the valve discrimination unit 50 is brought into contact; and an opening/closing member 70 that is urged into a closing direction from a side of a fuel tank FT and is opened by the large-diameter nozzle FNL passed through the opening. The oil supply device FS includes actuation members 51, 52 that guide the small-diameter nozzle FNS into the first portion when the small-diameter nozzle FNS is inserted into the second portion of the valve discrimination unit 50.SELECTED DRAWING: Figure 2

Description

本開示は、燃料タンクへ給油するための給油ノズルを受け入れる給油装置に関する。 The present disclosure relates to a refueling device that receives a refueling nozzle for refueling a fuel tank.

自動車に給油するための給油施設では、ガソリンと軽油など、異なる燃料を給油する設備があり、給油の際に誤って、意図しない燃料を自動車に給油することがないよう、給油施設における給油用ノズルの外径を燃料毎に異ならせている。最近では、ディーゼル車の触媒用にアドブルー（尿素水溶液）を給油することもあり、これらの液体供給用ノズルも、異なるノズル径とされている。具体的には、日本国では、ガソリン用のノズル径は約２１．０ｍｍ、軽油用のノズル径は２３．５ｍｍである。こうしたノズル径自体は、国によっても異なるが、自動車に供給されることが想定される液体の種別毎に、ノズル径を異ならせることが多い。国によっては、給油施設におけるノズル径を燃料等の種別毎に異ならせ、自動車側の給油装置に、異種の燃料等が供給されない機構を設けることを法令等で定めている。ノズル径の違いにより給油の可否を判別して対応する装置として、例えば特許文献１、２の技術が知られている。 Refueling facilities for refueling automobiles have facilities for refueling different fuels such as gasoline and light oil, and a nozzle for refueling in the refueling facility prevents accidental refueling of automobiles when refueling. The outer diameter of is different for each fuel. Recently, AdBlue (urea aqueous solution) may be refueled for the catalyst of diesel vehicles, and these liquid supply nozzles also have different nozzle diameters. Specifically, in Japan, the nozzle diameter for gasoline is about 21.0 mm, and the nozzle diameter for light oil is 23.5 mm. The nozzle diameter itself differs depending on the country, but in many cases, the nozzle diameter differs depending on the type of liquid that is expected to be supplied to the automobile. In some countries, the nozzle diameter in refueling facilities is different for each type of fuel, etc., and the law stipulates that the refueling device on the automobile side should be provided with a mechanism that prevents the supply of different types of fuel, etc. For example, the techniques of Patent Documents 1 and 2 are known as a device for determining whether or not refueling is possible based on the difference in nozzle diameter.

米国特許第ＵＳ８，７８４，２１４号明細書U.S. Pat. No. US8,784,214 特開２０１５−７４４０９号公報JP 2015-74409

しかしながら、こうしたノズル径の違いは、国によっても異なり、場合によっては１ｍｍ程度の差しかない場合もあり得る。例えば、日本において、アドブルー用のノズル径は１９ｍｍであり、ガソリン用のノズル径との違いは２ｍｍ程度である。こうした僅かな径の違いを精度良く弁別して、ノズルの誤挿入を抑制する装置の開発が求められている。 However, such a difference in nozzle diameter differs depending on the country, and in some cases, there may be a difference of about 1 mm. For example, in Japan, the nozzle diameter for AdBlue is 19 mm, and the difference from the nozzle diameter for gasoline is about 2 mm. There is a need to develop a device that accurately discriminates such slight differences in diameter and suppresses incorrect insertion of nozzles.

本開示は、以下の形態又は適用例として実現することが可能である。 The present disclosure can be realized as the following forms or application examples.

（１）本開示の一実施形態として、燃料の給油を行なう際に給油ノズルを受け入れる給油装置が提供される。この給油装置は、給油ノズルを受け入れる給油口を備え、前記給油口から燃料タンクに至る燃料通路の一部を形成する給油口形成部と、前記給油口から挿入される前記給油ノズルの到達範囲に設けられ、当該給油装置に適合する給油ノズルよりも外径の小さな小径ノズルの外径に対応した開口である第１部分と、当該給油装置に適合する大径ノズルの外径に対応した形状の開口である第２部分とからなる一続きの開口部を構成する弁別部と、前記弁別部の前記開口部よりも前記燃料タンク側に設けられ、前記第１部分に導かれた前記小径ノズルの先端が突き当たる突当部材と、前記弁別部よりも前記燃料タンク側に設けられ、前記燃料タンクの側から閉方向に付勢され、前記開口部を通過した前記大径ノズルにより開状態とされる開閉部材とを備える。ここで、前記弁別部は、前記第２部分に前記小径ノズルが挿入された場合に、前記挿入された前記小径ノズルを前記第１部分に導く作動部材を備えてよい。
かかる給油装置は、給油装置に適合しない外径の小径ノズルが開口部から挿入されたとき、第１部分と第２部分とからなる一続きの開口部を構成する弁別部に設けられた作動部材により、この小径ノズルを第１部分に導き、突当部材により、小径ノズルの進入を阻止する。従って、給油装置に適合しない小径ノズルが誤挿入されることを抑制することができる。
（２）こうした給油装置において、前記作動部材は、前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲むようにしてもよい。こうすれば、作動部材が、給油口側で広く、反対側で狭くできるので、給油ノズルを第１部分，第２部分に導きやすくなる。こうした形状としては、いわゆる漏斗形状（ファンネル形状）や、螺旋形状などが考えられる。
（３）こうした給油装置において、前記弁別部は、前記第２部分において、前記小径ノズルの外径より小さな内寸箇所を有し、前記作動部材は、前記第２部分への前記小径ノズルの挿入によっては移動せず、前記大径ノズルの挿入によって移動する移動部材を備え、前記移動部材は、前記移動によって前記第２部分の前記内寸箇所を前記大径ノズルの外径を越えて拡張するものとしてよい。こうすれば、大径ノズルが挿入された場合に、移動部材を移動させて、大径ノズルを第２部分に導くことができ、こうした移動を、小径ノズルによっては生じさせないようにして、小径ノズルの進入を阻止することができる。
（４）こうした給油装置において、前記移動部材は、前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲む開口形成部材としてよい。移動部材が、給油口側で広く、反対側で狭くできるので、給油ノズルを第１部分に導きやすくなる。こうした形状としては、いわゆる漏斗形状（ファンネル形状）の一部に相当する形状や、螺旋形状の一部に相当する形状などが考えられる。
（５）こうした給油装置において、前記弁別部の前記第１部分と前記第２部分とが接続する位置に、前記給油口側に所定高さに形成された案内部材を備え、前記案内部材に当接した前記大径ノズルの挿入によって、前記移動部材の前記移動を実現するものとしてもよい。こうすれば、移動部材の移動を実現しやすくなる。
（６）こうした給油装置において、前記作動部材は、前記給油口から挿入された前記給油ノズルの先端が当接する起動部材を備え、前記起動部材は、前記第２部分が、前記大径ノズルの外径より小さな内寸箇所を有するものとなる位置に配置され、前記起動部材に前記小径ノズルの先端が当接した場合は、前記突当部材を前記起動部材側に移動させ、前記起動部材に前記大径ノズルが当接した場合は、前記起動部材が移動することによって前記第２部分の前記内寸箇所を前記大径ノズルの外径を越えて拡張するものとしてよい。こうすれば、起動部材により確実に小径ノズルと大径ノズルとの弁別を行なうことができる。
（７）こうした給油装置において、前記弁別部の前記第１部分と前記第２部分とが接続する位置に、前記給油口側に所定高さに形成された案内部材を備え、前記給油口から挿入された前記大径ノズルの先端の一部が前記案内部材に当接することで、前記起動部材の移動を実現するものとしてよい。こうすれば、起動部材の移動を実現しやすくなる。
（８）こうした給油装置において、前記案内部材は、前記小径ノズルが前記起動部材に当接した状態では、前記小径ノズルとは離間しており、前記作動部材は、前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲み、前記小径ノズルが前記起動部材に当接して挿入される際、前記小径ノズルによる前記起動部材の前記移動に要する力よりも小さな力で前記突当部材を移動するものとしてよい。こうすれば、起動部材により、小径ノズルと大径ノズルとの弁別を容易に実現でき、小径ノズルの進入を確実に阻止できる。 (1) As an embodiment of the present disclosure, a refueling device that receives a refueling nozzle when refueling fuel is provided. This refueling device is provided with a refueling port for receiving the refueling nozzle, and is within the reach of the refueling port forming portion forming a part of the fuel passage from the refueling port to the fuel tank and the refueling nozzle inserted from the refueling port. The first part, which is provided and has an opening corresponding to the outer diameter of a small-diameter nozzle having a smaller outer diameter than the refueling nozzle suitable for the refueling device, and a shape corresponding to the outer diameter of the large-diameter nozzle suitable for the refueling device. A discriminant portion forming a continuous opening composed of a second portion which is an opening, and a small-diameter nozzle provided on the fuel tank side of the discriminant portion on the fuel tank side and guided to the first portion. The abutting member with which the tip abuts and the large-diameter nozzle provided on the fuel tank side of the discrimination portion, urged in the closing direction from the fuel tank side, and passed through the opening are opened. It is equipped with an opening / closing member. Here, the discrimination portion may include an operating member that guides the inserted small-diameter nozzle to the first portion when the small-diameter nozzle is inserted into the second portion.
Such a refueling device is an operating member provided in a discrimination portion that constitutes a continuous opening consisting of a first portion and a second portion when a small diameter nozzle having an outer diameter that is not compatible with the refueling device is inserted through the opening. This guides the small diameter nozzle to the first portion, and the abutting member prevents the small diameter nozzle from entering. Therefore, it is possible to prevent the small diameter nozzle that is not suitable for the refueling device from being erroneously inserted.
(2) In such a refueling device, the inner diameter of the operating member is larger in the second position than in the first position on the refueling port side and the second position on the fuel tank side than the first position. The opening may be surrounded by a narrowed shape. By doing so, the operating member can be widened on the fuel filler port side and narrowed on the opposite side, so that the fuel filler nozzle can be easily guided to the first portion and the second portion. As such a shape, a so-called funnel shape (funnel shape), a spiral shape, or the like can be considered.
(3) In such a refueling device, the discrimination portion has an inner diameter portion smaller than the outer diameter of the small diameter nozzle in the second portion, and the operating member inserts the small diameter nozzle into the second portion. A moving member that does not move depending on the size and moves by inserting the large-diameter nozzle is provided, and the moving member expands the inner dimension portion of the second portion beyond the outer diameter of the large-diameter nozzle by the movement. It may be a thing. In this way, when the large diameter nozzle is inserted, the moving member can be moved to guide the large diameter nozzle to the second part, and such movement is prevented by the small diameter nozzle so that the small diameter nozzle does not occur. Can be blocked from entering.
(4) In such a refueling device, the inner diameter of the moving member is larger in the second position than in the first position on the refueling port side and the second position on the fuel tank side than the first position. It may be an opening forming member that surrounds the opening in a shape that narrows. Since the moving member can be widened on the refueling port side and narrowed on the opposite side, it becomes easy to guide the refueling nozzle to the first portion. As such a shape, a shape corresponding to a part of a so-called funnel shape (funnel shape), a shape corresponding to a part of a spiral shape, and the like can be considered.
(5) In such a refueling device, a guide member formed at a predetermined height is provided on the refueling port side at a position where the first portion and the second portion of the discrimination portion are connected, and the guide member is in contact with the guide member. The movement of the moving member may be realized by inserting the large-diameter nozzle in contact with the moving member. In this way, it becomes easy to realize the movement of the moving member.
(6) In such a refueling device, the operating member includes a starting member with which the tip of the refueling nozzle inserted from the refueling port abuts, and the second portion of the starting member is outside the large diameter nozzle. When the tip of the small-diameter nozzle comes into contact with the starting member, the abutting member is moved to the starting member side and the starting member is touched by the starting member. When the large-diameter nozzle comes into contact with the large-diameter nozzle, the starting member may move to extend the inner dimension portion of the second portion beyond the outer diameter of the large-diameter nozzle. In this way, the starting member can reliably discriminate between the small-diameter nozzle and the large-diameter nozzle.
(7) In such a refueling device, a guide member formed at a predetermined height is provided on the refueling port side at a position where the first portion and the second portion of the discrimination portion are connected, and is inserted from the refueling port. A part of the tip of the large-diameter nozzle is brought into contact with the guide member to realize the movement of the activation member. In this way, it becomes easy to realize the movement of the starting member.
(8) In such a refueling device, the guide member is separated from the small diameter nozzle when the small diameter nozzle is in contact with the starting member, and the operating member is the first fuel filler port side. At the position and the second position on the fuel tank side from the first position, the second position surrounds the opening in a shape in which the inner diameter is narrower, and the small diameter nozzle abuts on the starting member. The abutting member may be moved with a force smaller than the force required for the movement of the starting member by the small diameter nozzle. In this way, the starting member can easily discriminate between the small-diameter nozzle and the large-diameter nozzle, and can reliably prevent the small-diameter nozzle from entering.

実施形態の給油装置全体の構成を示す概略構成図。The schematic block diagram which shows the structure of the whole refueling apparatus of embodiment. 第１実施形態のフィラーネックの内部構造を示す一部破断斜視図。A partially broken perspective view showing the internal structure of the filler neck of the first embodiment. 弁別部のデフォルトの形態を示す斜視図。The perspective view which shows the default form of the discrimination part. 弁別部の動作状態の形態を示す斜視図。The perspective view which shows the mode of the operating state of the discrimination part. 弁別部の側面を示すＶ矢視図。The V arrow view which shows the side surface of the discrimination part. 弁別部の背面図。Rear view of the discrimination part. 小径ノズルが挿入された場合の動作状態を示す説明図。Explanatory drawing which shows the operating state when a small diameter nozzle is inserted. 図７ＡのＶＩＩＢーＶＩＩＢ断面図。FIG. 7A is a sectional view taken along line VIIB-VIIB. 小径ノズルを第１部分に挿入して、作動部材を移動させた場合の動作状態を示す説明図。Explanatory drawing which shows the operating state when the small diameter nozzle is inserted into the 1st part, and the operating member is moved. 図８ＡのＶＩＩＩＢーＶＩＩＩＢ断面図。FIG. 8A is a cross-sectional view taken along the line VIIIB-VIIIB. 小径ノズルを第２部分に挿入した状態を示す説明図。Explanatory drawing which shows the state which inserted the small diameter nozzle into the 2nd part. 小径ノズルを第２部分に挿入して、案内部材によって移動部材を移動しようとする場合の動作状態を示す説明図。It is explanatory drawing which shows the operation state at the time of inserting a small diameter nozzle into a 2nd part, and trying to move a moving member by a guide member. 図９ＢのＸーＸ断面図。XX sectional view of FIG. 9B. 案内部材の他の形態を示す断面図。FIG. 5 is a cross-sectional view showing another form of the guide member. 小径ノズルを第２部分側に挿入した場合の動作状態を示す説明図。The explanatory view which shows the operating state when the small diameter nozzle is inserted into the 2nd part side. 大径ノズルを第２部分に挿入した状態を示す説明図。Explanatory drawing which shows the state which the large diameter nozzle is inserted in the 2nd part. 大径ノズルを更に挿入した状態を示す説明図。Explanatory drawing which shows the state which further inserted the large-diameter nozzle. 大径ノズルを更に奥まで挿入した状態を示す説明図。Explanatory drawing which shows the state which inserted the large-diameter nozzle further into the depth. ゲージ部材の第１部分と第２部分の関係を、小径ノズルと大径ノズルとに対応させて示す説明図。Explanatory drawing which shows the relationship between the 1st part and 2nd part of a gauge member corresponding to a small diameter nozzle and a large diameter nozzle. 第２実施形態の給油装置が組み込まれたフィラーネックの外観を示す斜視図。The perspective view which shows the appearance of the filler neck which incorporated the refueling device of 2nd Embodiment. 第２実施形態のフィラーネックに組み込まれた弁別部のデフォルトの形態を示す説明図。The explanatory view which shows the default form of the discrimination part incorporated in the filler neck of 2nd Embodiment. 小径ノズルが第１部分に差し込まれた場合の小径ノズルの位置の一例を示す説明図。The explanatory view which shows an example of the position of the small diameter nozzle when the small diameter nozzle is inserted into the 1st part. 第１部分に差し込まれた小径ノズルと案内部材間の離間距離との関係を示す説明図。Explanatory drawing which shows the relationship between the small diameter nozzle inserted into the 1st part, and the separation distance between a guide member. 小径ノズルを第２部分に差し込んだ状態を示す説明図。Explanatory drawing which shows the state which inserted the small diameter nozzle into the 2nd part. 図２０におけるＸＸＩ−ＸＸＩ断面図。FIG. 20 is a cross-sectional view taken along the line XXI-XXI. 小径ノズルを更に差し込んだ状態を示す断面図。A cross-sectional view showing a state in which a small-diameter nozzle is further inserted. 小径ノズルを更に奥まで差し込んだ状態を示す断面図。A cross-sectional view showing a state in which the small diameter nozzle is further inserted. 大径ノズルが第２部分に差し込まれた場合の状態を示す説明図。Explanatory drawing which shows the state when the large diameter nozzle is inserted into the 2nd part. 図２４におけるＸＸＶ−ＸＸＶ断面図。FIG. 24 is a cross-sectional view taken along the line XXV-XXV in FIG. 24. 第２部分に差し込まれた大径ノズルと案内部材間の離間距離との関係を示す説明図。Explanatory drawing which shows the relationship between the large diameter nozzle inserted into the 2nd part, and the separation distance between a guide member. 大径ノズルを更に差し込んだ状態を示す断面図。A cross-sectional view showing a state in which a large-diameter nozzle is further inserted. 大径ノズルを更に奥まで差し込んだ状態を示す断面図。A cross-sectional view showing a state in which a large-diameter nozzle is further inserted. 大径ノズルが開閉部材に到達した状態を示す説明図。Explanatory drawing which shows the state which the large diameter nozzle reached the opening and closing member.

Ａ．第１実施形態：
図１は第１実施形態の給油装置ＦＳの概要を示す説明図である。給油装置ＦＳは、車両に装着され、給油ノズルＦＮから供給される燃料を燃料タンクＦＴに導く。図１には、鉛直方向を示す矢印Ｇが記載されている。給油装置ＦＳは、給油口形成部材であるフィラーネック１００と、燃料蒸気ポート２６と、フィラーパイプＦＰと、逆止弁ＴＶと、燃料蒸気チューブＮＴと、ガス放出弁ＢＶと、装着部材ＦＥと、を備えている。フィラーネック１００は、装着部材ＦＥにより車両の給油室ＦＲに装着され、給油口２２への給油ノズルＦＮの挿入を受け付ける。なお、図示する装着部材ＦＥに代わり、中央にフィラーネック１００の一部が挿入される円孔が形成された円板状の基板を用いて、フィラーネック１００を給油室ＦＲに装着してもよい。 A. First Embodiment:
FIG. 1 is an explanatory diagram showing an outline of the refueling device FS of the first embodiment. The refueling device FS is mounted on the vehicle and guides the fuel supplied from the refueling nozzle FN to the fuel tank FT. In FIG. 1, an arrow G indicating a vertical direction is shown. The refueling device FS includes a filler neck 100 which is a refueling port forming member, a fuel vapor port 26, a filler pipe FP, a check valve TV, a fuel vapor tube NT, an outgassing valve BV, a mounting member FE, and the like. It has. The filler neck 100 is mounted on the refueling chamber FR of the vehicle by the mounting member FE, and accepts the insertion of the refueling nozzle FN into the refueling port 22. Instead of the mounting member FE shown in the figure, the filler neck 100 may be mounted on the refueling chamber FR by using a disk-shaped substrate having a circular hole in which a part of the filler neck 100 is inserted in the center. ..

フィラーネック１００は、燃料タンクＦＴと、フィラーパイプＦＰおよび燃料蒸気チューブＮＴにより接続されている。そして、フィラーネック１００は、給油口２２に挿入された給油ノズルＦＮ（図１参照）からガソリンなどの液体燃料を、フィラーパイプＦＰを介して接続される燃料タンクＦＴへと導く。フィラーパイプＦＰは、例えば、２箇所に蛇腹構造を有する樹脂製のチューブであり、一定の範囲において、伸縮し、湾曲可能である。このフィラーパイプＦＰは、逆止弁ＴＶを介して、燃料タンクＦＴと接続されている。給油口２２に挿入された給油ノズルＦＮから吐出された燃料は、フィラーネック１００が形成する後述の燃料通路とフィラーパイプＦＰを経て、逆止弁ＴＶから、燃料タンクＦＴに導かれる。逆止弁ＴＶは、燃料タンクＦＴからフィラーパイプＦＰへの燃料の逆流を防止する。 The filler neck 100 is connected to the fuel tank FT by a filler pipe FP and a fuel vapor tube NT. Then, the filler neck 100 guides liquid fuel such as gasoline from the refueling nozzle FN (see FIG. 1) inserted into the refueling port 22 to the fuel tank FT connected via the filler pipe FP. The filler pipe FP is, for example, a resin tube having a bellows structure at two positions, and can be expanded and contracted and curved within a certain range. The filler pipe FP is connected to the fuel tank FT via a check valve TV. The fuel discharged from the refueling nozzle FN inserted into the refueling port 22 is guided to the fuel tank FT from the check valve TV via the fuel passage and the filler pipe FP described later formed by the filler neck 100. The check valve TV prevents the backflow of fuel from the fuel tank FT to the filler pipe FP.

燃料蒸気チューブＮＴは、一端がガス放出弁ＢＶを介して燃料タンクＦＴと接続され、他端がフィラーネック１００から突出した燃料蒸気ポート２６に接続されている。ガス放出弁ＢＶは、燃料蒸気チューブＮＴを燃料タンクＦＴに接続する継手としても機能する。燃料蒸気が含まれるタンク内エアーは、ガス放出弁ＢＶから、燃料蒸気チューブＮＴに流れ込む。燃料蒸気は、給油ノズルＦＮからの給油時に、供給された燃料と共にフィラーパイプＦＰを通って燃料タンクＦＴに導かれる。以下、フィラーネック１００について詳述する。 One end of the fuel vapor tube NT is connected to the fuel tank FT via the gas discharge valve BV, and the other end is connected to the fuel vapor port 26 protruding from the filler neck 100. The outgassing valve BV also functions as a joint that connects the fuel vapor tube NT to the fuel tank FT. The air in the tank containing the fuel vapor flows into the fuel vapor tube NT from the gas release valve BV. When refueling from the refueling nozzle FN, the fuel vapor is guided to the fuel tank FT through the filler pipe FP together with the supplied fuel. Hereinafter, the filler neck 100 will be described in detail.

図２は、フィラーネック１００の内部構造を示す一部破断斜視図である。図では、燃料通路形成部２０の手前側を破断している。燃料通路形成部２０、フィラーネック１００全体の外形を形成し、内部に燃料通路９０を形成する部材である。このフィラーネック１００には、給油口２２を形成するカバー部材２４側から、第１開閉機構４０、第２開閉機構３０が内蔵されている。第１開閉機構４０および第２開閉機構３０は、いずれも給油ノズルＦＮの到達範囲にあり、給油装置ＦＳに適合する給油ノズルＦＮを差し込むことにより開かれる。 FIG. 2 is a partially cutaway perspective view showing the internal structure of the filler neck 100. In the figure, the front side of the fuel passage forming portion 20 is broken. It is a member that forms the outer shape of the entire fuel passage forming portion 20 and the filler neck 100, and forms the fuel passage 90 inside. The filler neck 100 contains a first opening / closing mechanism 40 and a second opening / closing mechanism 30 from the cover member 24 side forming the fuel filler port 22. Both the first opening / closing mechanism 40 and the second opening / closing mechanism 30 are within the reach of the refueling nozzle FN, and are opened by inserting a refueling nozzle FN compatible with the refueling device FS.

第２開閉機構３０は、図示するように、最も燃料タンク側において燃料通路形成部２０の下部に配設され、燃料通路９０を開閉する。この第２開閉機構３０は、燃料通路９０を開閉する第２開閉弁３１と、燃料通路形成部２０に固定されて第２開閉弁３１を付勢するスプリング（図示省略）と、を備える。第２開閉弁３１は、燃料タンク側から挿入側への液体燃料の逆流を防止するフラップであり、シール用のシール部材３３を備える。第２開閉弁３１は、燃料通路形成部２０に設けられた回転軸３２で回転可能に支持され、スプリングにより、第２開閉弁３１を燃料通路９０が閉まる方向に付勢されている。 As shown in the figure, the second opening / closing mechanism 30 is arranged at the lower part of the fuel passage forming portion 20 on the most fuel tank side, and opens / closes the fuel passage 90. The second on-off mechanism 30 includes a second on-off valve 31 that opens and closes the fuel passage 90, and a spring (not shown) that is fixed to the fuel passage forming portion 20 and urges the second on-off valve 31. The second on-off valve 31 is a flap for preventing the backflow of liquid fuel from the fuel tank side to the insertion side, and includes a sealing member 33 for sealing. The second on-off valve 31 is rotatably supported by a rotating shaft 32 provided in the fuel passage forming portion 20, and the second on-off valve 31 is urged by a spring in a direction in which the fuel passage 90 is closed.

第２開閉機構３０よりも給油口２２側に設けられた第１開閉機構４０は、挿入される給油ノズルＦＮの外径を弁別する弁別部５０と、この弁別部５０よりも燃料タンクＦＴ側に設けられた開閉部材７０と、を備える。弁別部５０は、本実施形態では、全て樹脂により形成されている。弁別部５０の構成を、図３から図６を用いて説明する。弁別部５０は、給油装置ＦＳに適合する給油ノズルが進入し得る円形の開口を有し、内側にテーパ状の錐形ガード５１とその下部に移動可能に組み込まれた移動部材５２とを備える。錐形ガード５１は、上端外周に上縁部５９を、下端外周の半分に固定フランジ部５６を、それぞれ備える。この上縁部５９は、図２に示したように、カバー部材２４の給油口２２の内側に形成された返し部２３に固定されている。従って、錐形ガード５１は、給油ノズルＦＮの挿入時に、給油ノズルＦＮの先端が当たっても移動しない。 The first opening / closing mechanism 40 provided on the refueling port 22 side of the second opening / closing mechanism 30 has a discrimination portion 50 that discriminates the outer diameter of the refueling nozzle FN to be inserted, and a fuel tank FT side of the discrimination portion 50. The opening / closing member 70 provided is provided. In this embodiment, the discrimination portion 50 is entirely made of resin. The configuration of the discrimination unit 50 will be described with reference to FIGS. 3 to 6. The discrimination unit 50 has a circular opening through which a refueling nozzle suitable for the refueling device FS can enter, and includes a conical guard 51 having a tapered shape inside and a moving member 52 movably incorporated under the conical guard 51. The cone-shaped guard 51 is provided with an upper edge portion 59 on the outer periphery of the upper end and a fixed flange portion 56 on the half of the outer periphery of the lower end. As shown in FIG. 2, the upper edge portion 59 is fixed to the return portion 23 formed inside the fuel filler port 22 of the cover member 24. Therefore, the cone-shaped guard 51 does not move even if the tip of the refueling nozzle FN hits when the refueling nozzle FN is inserted.

錐形ガード５１は径方向内側に向かって窄まるテーパ形状とされており、かつ移動部材５２が配置される部位は、テーパの部分が存在しない。つまり錐形ガード５１の下半分は、移動部材５２の配置される部位を除いた形状となっている。錐形ガード５１の下端は給油口２２とは反対側に位置している。固定フランジ部５６は、テーパ形状の部分の先端から外方に所定長だけ延出され、フランジ形状をしている。 The conical guard 51 has a tapered shape that narrows inward in the radial direction, and the portion where the moving member 52 is arranged does not have a tapered portion. That is, the lower half of the cone-shaped guard 51 has a shape excluding the portion where the moving member 52 is arranged. The lower end of the cone-shaped guard 51 is located on the opposite side of the fuel filler port 22. The fixed flange portion 56 has a flange shape, extending outward by a predetermined length from the tip of the tapered portion.

錐形ガード５１の外側のテーパ部の中程には、図５に示したように、バネ部材４１，４３を支える支柱部材４４の根元が固定されている。支柱部材４４は、略Ｔ字形状をしており、錐形ガード５１に固定された部位から外方に延出され、両側に延びた腕部の先端に、樹脂製のバネ部材４１，４３が取付けられている。バネ部材４１，４３の反対側の先端は、移動部材５２の端部４６に固定されている。従って、このバネ部材４１，４３が延びる範囲内で、移動部材５２は、図示ＤＩ方向に移動可能である。図４に、移動部材５２が移動した状態を示した。なお、バネ部材４１，４３は、金属製のコイルばねや、板ばねなどにより実現することも可能である。 As shown in FIG. 5, the roots of the support columns 44 that support the spring members 41 and 43 are fixed in the middle of the outer tapered portion of the cone-shaped guard 51. The strut member 44 has a substantially T-shape, extends outward from a portion fixed to the conical guard 51, and resin spring members 41 and 43 are attached to the tips of the arms extending on both sides. It is installed. The opposite ends of the spring members 41 and 43 are fixed to the end 46 of the moving member 52. Therefore, the moving member 52 can move in the DI direction shown in the drawing within the range in which the spring members 41 and 43 extend. FIG. 4 shows a state in which the moving member 52 has moved. The spring members 41 and 43 can also be realized by a metal coil spring, a leaf spring, or the like.

移動部材５２の内側には、上端から下方にテーパ状の傾斜部５８と、この傾斜部５８の周方向両端に配置された案内部材５３，５４と、傾斜部５８の下端において内方に突き出した突当部５７とが設けられている。移動部材５２の外方には、傾斜部５８の下端において外方に突き出した半円形の移動フランジ部５５が設けられている。 Inside the moving member 52, an inclined portion 58 tapered downward from the upper end, guide members 53 and 54 arranged at both ends of the inclined portion 58 in the circumferential direction, and protruding inward at the lower end of the inclined portion 58. The abutting portion 57 is provided. A semi-circular moving flange portion 55 protruding outward at the lower end of the inclined portion 58 is provided on the outer side of the moving member 52.

上述した固定フランジ部５６と移動フランジ部５５とは、図２に示したように、その下側が燃料通路形成部２０の内側に形成された支持部材２７の上面に接している。従って、弁別部５０は、上端が、カバー部材２４の返し部２３に固定され、下端が支持部材２７の上面に接し、返し部２３と支持部材２７との間で、移動部材５２が支持部材２７の面上で移動するように保持されている。図４に示したように、移動部材５２が矢印ＤＩ方向に移動した状態では、固定フランジ部５６と移動フランジ部５５とは、距離Ｄ１だけ離れた状態となる。この距離Ｄ１は、上述した突当部５７の径方向の幅、つまり移動部材５２の移動方向に沿った長さより大きい。 As shown in FIG. 2, the fixed flange portion 56 and the moving flange portion 55 described above are in contact with the upper surface of the support member 27 formed inside the fuel passage forming portion 20 on the lower side thereof. Therefore, the upper end of the discrimination portion 50 is fixed to the return portion 23 of the cover member 24, the lower end is in contact with the upper surface of the support member 27, and the moving member 52 is the support member 27 between the return portion 23 and the support member 27. It is held to move on the surface of. As shown in FIG. 4, when the moving member 52 is moved in the direction of arrow DI, the fixed flange portion 56 and the moving flange portion 55 are separated by a distance D1. This distance D1 is larger than the radial width of the abutting portion 57 described above, that is, the length along the moving direction of the moving member 52.

移動部材５２の内側２箇所に設けられた案内部材５３，５４は、図３および図４に示したように、給油口２２である上半分は上方に向かって細くなる錐柱形状を備え、給油口２２とは反対側である下半分は下方に向かって細くなる錐柱形状を備える。案内部材５３の上半分は、給油口２２側から径方向内側に下って行く二つの斜面６１，６２を備える。斜面６２を、以下、第１案内斜面６２と呼び、斜面６１を、以下、第２案内斜面６２と呼ぶ。また、案内部材５３の下半分は、第１，第２案内斜面６２，６１の終端から、それぞれ外方に向かって後退する形状とされている。第１案内斜面６２の下の斜面を第１拡張下面６７と呼び、第２案内斜面６１の下の斜面を第２拡張下面６６と呼ぶ。図３，図４では、案内部材５４側の全体形状は示されていないが、案内部材５３と案内部材５４とは、鏡像関係の形状をしており、移動部材５２の傾斜部５８の両端に、互いに向き合うように配置されている。この案内部材５３，５４の詳細な形状と働きを図７Ａ以下を用いて順次説明する。 As shown in FIGS. 3 and 4, the guide members 53 and 54 provided at two locations inside the moving member 52 have a cone shape in which the upper half of the refueling port 22 narrows upward and refuels. The lower half, which is opposite to the mouth 22, has a cone shape that narrows downward. The upper half of the guide member 53 includes two slopes 61 and 62 that descend radially inward from the fuel filler port 22 side. The slope 62 is hereinafter referred to as a first guide slope 62, and the slope 61 is hereinafter referred to as a second guide slope 62. Further, the lower half of the guide member 53 has a shape that recedes outward from the ends of the first and second guide slopes 62 and 61, respectively. The slope below the first guide slope 62 is referred to as a first extended lower surface 67, and the slope below the second guide slope 61 is referred to as a second extended lower surface 66. Although the overall shape of the guide member 54 side is not shown in FIGS. 3 and 4, the guide member 53 and the guide member 54 have a mirror image-related shape, and are formed at both ends of the inclined portion 58 of the moving member 52. , Arranged to face each other. The detailed shapes and functions of the guide members 53 and 54 will be sequentially described with reference to FIGS. 7A and below.

案内部材５３，５４は、図７Ａに示すように、案内部材５３の右端（径方向内側端部）と案内部材５４の左端（径方向内側端部）とが構成する内寸箇所が、離間距離ＧＤ１だけ隔てて配置されている。この離間距離ＧＤ１は、後述する小径ノズルＦＮＳの外径より僅かに大きく、大径ノズルＦＮＬの外径より少し小さい。図７Ａでは、小径の給油ノズルを参考用として破線で示した。案内部材５３の上半分には、既に説明した様に、互いに傾きの方向が異なる斜面である第１案内斜面６２および第２案内斜面６１が設けられ、案内部材５４の上半分には、互いに傾きの方向が異なる第１案内斜面６４および第２案内斜面６３が設けられている。この案内部材５３，５４の第１案内斜面６２，６４は、案内部材５３および５４の中心側を向いており、案内部材５３，５４の第２案内斜面６１，６３は、移動部材５２の移動方向と反対側を向いている。 As shown in FIG. 7A, the guide members 53 and 54 have an internal dimension formed by the right end (diameter inner end) of the guide member 53 and the left end (diameter inner end) of the guide member 54, which are separated from each other. Only GD1 is separated. This separation distance GD1 is slightly larger than the outer diameter of the small-diameter nozzle FNS, which will be described later, and slightly smaller than the outer diameter of the large-diameter nozzle FNL. In FIG. 7A, the small diameter refueling nozzle is shown by a broken line for reference. As described above, the upper half of the guide member 53 is provided with the first guide slope 62 and the second guide slope 61, which are slopes having different inclination directions, and the upper half of the guide member 54 is inclined to each other. A first guide slope 64 and a second guide slope 63 having different directions are provided. The first guide slopes 62 and 64 of the guide members 53 and 54 face the center side of the guide members 53 and 54, and the second guide slopes 61 and 63 of the guide members 53 and 54 are in the moving direction of the moving member 52. And facing the other side.

移動部材５２の突当部５７は、図７Ｂに示したように、傾斜部５８の下端に形成され、しかも第２案内斜面６１，６３の下端より下方に形成されている。図７Ａに示したように、傾斜部５８と突当部５７とが接する箇所は円弧形状をしている。また、錐形ガード５１の下端は、上縁部５９より小径の円弧形状をしていている。移動部材５２が移動していない状態、つまり固定フランジ部５６と移動フランジ部５５とが接している状態で、この突当部５７と案内部材５３，５４と錐形ガードの下端とが形成する略円形の部分を、弁別部５０の第１部分と呼ぶ。この第１部分は、この給油装置ＦＳに適合する給油ノズルＦＮより小径の給油ノズルが納まるように設計されている。以下の説明では、この給油装置ＦＳに適合しない小径の給油ノズル（ノズル径１９．０ｍｍの給油ノズル）を小径ノズルＦＮＳと呼び、この給油装置ＦＳに適合する大径の給油ノズル（ガソリン用のノズル径２０．５ｍｍの給油ノズル）を大径ノズルＦＮＬと呼ぶ。本実施形態では、離間距離ＧＤ１は、１９．７５ｍｍとされている。 As shown in FIG. 7B, the abutting portion 57 of the moving member 52 is formed at the lower end of the inclined portion 58, and is formed below the lower ends of the second guide slopes 61 and 63. As shown in FIG. 7A, the portion where the inclined portion 58 and the abutting portion 57 meet has an arc shape. Further, the lower end of the cone-shaped guard 51 has an arc shape having a diameter smaller than that of the upper edge portion 59. When the moving member 52 is not moving, that is, when the fixed flange portion 56 and the moving flange portion 55 are in contact with each other, the abutting portion 57, the guide members 53, 54, and the lower end of the conical guard are formed. The circular portion is referred to as the first portion of the discrimination portion 50. The first part is designed to accommodate a refueling nozzle having a diameter smaller than that of the refueling nozzle FN compatible with the refueling device FS. In the following description, a small-diameter refueling nozzle (nozzle with a nozzle diameter of 19.0 mm) that is not compatible with this refueling device FS is called a small-diameter nozzle FNS, and a large-diameter refueling nozzle (nozzle for gasoline) that is compatible with this refueling device FS is called. A refueling nozzle with a diameter of 20.5 mm) is called a large diameter nozzle FNL. In the present embodiment, the separation distance GD1 is 19.75 mm.

図７Ａに示したように、小径ノズルＦＮＳは、移動部材５２が移動していない位置（以下、デフォルトの位置とも言う）にある場合の弁別部５０の第１部分に納まる。小径ノズルＦＮＳの挿入位置が第１部分に対して、多少ずれていても、案内部材５３，５４の第１案内斜面６２，６４により、小径ノズルＦＮＳは、第１部分に誘導される。この状態では、図７ＡにおけるＶＩＩＢ−ＶＩＩＢ断面図である図７Ｂに示したように、小径ノズルＦＮＳの先端は、デフォルトの位置にある移動部材５２の突当部５７に当り、小径ノズルＦＮＳは、それ以上、燃料通路９０に進入することはできない。弁別部５０の下方、つまり燃料タンクＦＴ側に、弁別部５０に隣接して設けられた開閉部材７０は、図７Ａにおける第１部分を閉塞する弁体７１、この弁体７１を回転可能に燃料通路形成部２０に保持する保持軸７３、一端が保持軸７３に固定され他端が弁体７１の下面に接するよう配置されたスプリング７５、を備える。弁体７１は、スプリング７５によって、閉塞方向に付勢されているから、外力が働かなければ、燃料通路９０を閉塞する位置に保たれる。小径ノズルＦＮＳが給油装置ＦＳに挿入された場合であって、小径ノズルＦＮＳの先端が、錐形ガード５１や移動部材５２の傾斜部５８等に接することなく、第１部分に挿入された場合は、小径ノズルＦＮＳの先端は、突当部５７に突き当たり、それ以上進入できないので、開閉部材７０の弁体７１を開方向に移動させることはない。 As shown in FIG. 7A, the small-diameter nozzle FNS fits in the first portion of the discrimination portion 50 when the moving member 52 is in a position where the moving member 52 is not moving (hereinafter, also referred to as a default position). Even if the insertion position of the small-diameter nozzle FNS is slightly deviated from the first portion, the small-diameter nozzle FNS is guided to the first portion by the first guide slopes 62 and 64 of the guide members 53 and 54. In this state, as shown in FIG. 7B, which is a cross-sectional view of VIIB-VIIB in FIG. 7A, the tip of the small diameter nozzle FNS hits the abutting portion 57 of the moving member 52 at the default position, and the small diameter nozzle FNS No more can enter the fuel passage 90. The opening / closing member 70 provided adjacent to the discrimination portion 50 below the discrimination portion 50, that is, on the FT side of the fuel tank, is a valve body 71 that closes the first portion in FIG. 7A, and the valve body 71 can be rotatably fueled. A holding shaft 73 held by the passage forming portion 20 and a spring 75 having one end fixed to the holding shaft 73 and the other end contacting the lower surface of the valve body 71 are provided. Since the valve body 71 is urged in the closing direction by the spring 75, the valve body 71 is kept in a position where the fuel passage 90 is closed if no external force is applied. When the small-diameter nozzle FNS is inserted into the refueling device FS, and the tip of the small-diameter nozzle FNS is inserted into the first portion without contacting the cone-shaped guard 51, the inclined portion 58 of the moving member 52, or the like. Since the tip of the small-diameter nozzle FNS abuts on the abutting portion 57 and cannot enter any further, the valve body 71 of the opening / closing member 70 is not moved in the opening direction.

図７Ａ，図７Ｂに示した状態から、小径ノズルＦＮＳを無理に移動部材５２の移動可能方向ＤＩに押した場合を、図８ＡとそのＶＩＩＩＢ−ＶＩＩＩＢ断面図である図８Ｂに示した。小径ノズルＦＮＳで移動部材５２を径方向外側に押すと、バネ部材４１，４３は延び、移動部材５２は径方向外側に移動する。しかし、移動部材５２の移動につれて、その下端に設けられた突当部５７も移動するので、図８Ａ，図８Ｂに示したように、小径ノズルＦＮＳの先端は、移動部材５２の突当部５７により進入を阻止され、開閉部材７０の弁体７１を開く位置まで至れない。 The case where the small diameter nozzle FNS is forcibly pushed in the movable direction DI of the moving member 52 from the state shown in FIGS. 7A and 7B is shown in FIG. 8A and FIG. 8B which is a sectional view thereof VIIIB-VIIIB. When the moving member 52 is pushed outward in the radial direction by the small diameter nozzle FNS, the spring members 41 and 43 extend and the moving member 52 moves outward in the radial direction. However, as the moving member 52 moves, the abutting portion 57 provided at the lower end thereof also moves. Therefore, as shown in FIGS. 8A and 8B, the tip of the small diameter nozzle FNS is the abutting portion 57 of the moving member 52. This prevents the entry, and the valve body 71 of the opening / closing member 70 cannot be opened.

図７Ａ，図７Ｂに示した状態から、小径ノズルＦＮＳを、移動部材５２とは反対側に押した場合は、固定されて移動しない錐形ガード５１が小径ノズルＦＮＳの移動を許容しない。小径ノズルＦＮＳの先端を錐形ガード５１の傾斜部に当てたまま、移動部材５２の案内部材５３，５４を同時に押して移動部材５２を移動させようとしても、図９Ａに示したように、案内部材５３，５４の離間距離ＧＤ１は、小径ノズルＦＮＳの外径より僅かに大きいから、錐形ガード５１の傾斜部に小径ノズルＦＮＳの一端を当てて、小径ノズルＦＮＳの先端反対側で、案内部材５３，５４の第２案内斜面６１，６３を同時に押すことはできない。したがって、小径ノズルＦＮＳをそのまま押し込んでいくと、小径ノズルＦＮＳは錐形ガード５１の傾斜部に沿って移動部材５２側に移動し、最後は、図７Ａ，図７Ｂに示した状態となり、小径ノズルＦＮＳの進入は、突当部５７より阻止される。 When the small-diameter nozzle FNS is pushed to the opposite side of the moving member 52 from the state shown in FIGS. 7A and 7B, the fixed and non-moving cone-shaped guard 51 does not allow the small-diameter nozzle FNS to move. Even if the guide members 53 and 54 of the moving member 52 are simultaneously pushed to move the moving member 52 while the tip of the small-diameter nozzle FNS is in contact with the inclined portion of the conical guard 51, the guide member 52 is moved as shown in FIG. 9A. Since the separation distance GD1 of 53 and 54 is slightly larger than the outer diameter of the small diameter nozzle FNS, one end of the small diameter nozzle FNS is applied to the inclined portion of the conical guard 51, and the guide member 53 is on the opposite side of the tip of the small diameter nozzle FNS. , 54 second guide slopes 61 and 63 cannot be pressed at the same time. Therefore, when the small-diameter nozzle FNS is pushed in as it is, the small-diameter nozzle FNS moves toward the moving member 52 along the inclined portion of the cone-shaped guard 51, and finally, the state shown in FIGS. 7A and 7B is obtained, and the small-diameter nozzle The entry of the FNS is blocked by the abutting portion 57.

仮に、小径ノズルＦＮＳの先端を錐形ガード５１の傾斜部に当てた状態で、小径ノズルＦＮＳを、図９Ｂに示すように、案内部材５３方向に偏位させ、案内部材５３の第２案内斜面６１を押した場合を想定する。この場合、小径ノズルＦＮＳを押し込んでいくと、小径ノズルＦＮＳの先端は、移動部材５２方向に移動しつつ、案内部材５３の第２案内斜面６１の端に当たり、移動部材５２を弁別部５０の径方向外側（矢印ＤＩ方向）に移動させる可能性がある。最大限移動させた状態を、図１１に示した。この状態では、小径ノズルＦＮＳの先端は、まだ案内部材５３の第２案内斜面６１に接し、案内部材５３を介して移動部材５２全体を径方向外側に押している。 Assuming that the tip of the small-diameter nozzle FNS is in contact with the inclined portion of the cone-shaped guard 51, the small-diameter nozzle FNS is displaced in the direction of the guide member 53 as shown in FIG. 9B, and the second guide slope of the guide member 53 is provided. It is assumed that 61 is pressed. In this case, when the small diameter nozzle FNS is pushed in, the tip of the small diameter nozzle FNS moves in the direction of the moving member 52 and hits the end of the second guide slope 61 of the guide member 53, and the moving member 52 has the diameter of the discrimination portion 50. It may be moved to the outside of the direction (direction of arrow DI). The state of being moved to the maximum is shown in FIG. In this state, the tip of the small-diameter nozzle FNS is still in contact with the second guide slope 61 of the guide member 53, and pushes the entire moving member 52 radially outward via the guide member 53.

しかし、図９のＸーＸ断面図である図１０Ａに示すように、小径ノズルＦＮＳが錐形ガード５１の下端まで到達する直前または到達すると同時に、小径ノズルＦＮＳの先端は、案内部材５３の第２案内斜面６１の最下端を通過する。第２案内斜面６１の最下端より下側は、第２拡張下面６６として、外方に向かって後退する形状とされているので、小径ノズルＦＮＳの先端を案内部材５３の第２案内斜面６１に当てて、これを押すことは、もはやできない。このため、それまで図１０Ａに示した状態まで移動していた移動部材５２は、バネ部材４１，４３の復元力により、図７Ｂに示した位置まで、つまりデフォルトの位置まで、引き戻される。この結果、移動部材５２の突当部５７が小径ノズルＦＮＳの下に配置されることになり、小径ノズルＦＮＳのそれ以上の進入は阻止される。 However, as shown in FIG. 10A, which is a cross-sectional view taken along the line XX of FIG. 9, the tip of the small-diameter nozzle FNS is at the tip of the guide member 53 immediately before or at the same time when the small-diameter nozzle FNS reaches the lower end of the cone-shaped guard 51. 2 Passes through the lowermost end of the guide slope 61. Since the lower side of the second guide slope 61 below the lowermost end has a shape of retreating outward as the second extended lower surface 66, the tip of the small-diameter nozzle FNS is attached to the second guide slope 61 of the guide member 53. You can't guess and push this anymore. Therefore, the moving member 52 that has been moved to the state shown in FIG. 10A is pulled back to the position shown in FIG. 7B, that is, to the default position by the restoring force of the spring members 41 and 43. As a result, the abutting portion 57 of the moving member 52 is arranged under the small-diameter nozzle FNS, and further entry of the small-diameter nozzle FNS is prevented.

案内部材５３の形状は、図１０Ａに示した形状に限らず、例えば第１案内斜面６２と第２案内斜面６１の下側、つまり開閉部材７０側の第１拡張下面６７と第２拡張下面６６とを形成せず、図１０Ｂに例示したように、ここを単なる空間６８としてもよい。こうしても小径ノズルＦＮＳの先端が通過したときに、同様に移動部材５２を移動させることができる。なお、図１０Ｂに示した例では、第２案内斜面６１，第１案内斜面６２の空間６８側端部は、１ｍｍ程度の平坦部６６ａ，６７ａとしているが、この平坦部６６ａ，６７ａはなくてもよい。平坦部６６ａ，６７ａを設けることで、案内部材５３の端部の強度を高めることができる。平坦部６６ａ，６７ａは、小径ノズルＦＮＳの先端が滑りやすいように丸味を漬けることも有用である。また、案内部材５３の第２案内斜面６１，第１案内斜面６２の下側は、小径ノズルＦＮＳの先端が通過したときに、案内部材５３を押せない形状であればよく、単なる空間部６８とする形状の他、外側に向かって平面的に後退する形状、曲面により後退する形状、ステップ状に後退する形状など、種々の形状が可能である。 The shape of the guide member 53 is not limited to the shape shown in FIG. 10A. For example, the lower side of the first guide slope 62 and the second guide slope 61, that is, the first extended lower surface 67 and the second extended lower surface 66 on the opening / closing member 70 side. And may not be formed, and as illustrated in FIG. 10B, this may be simply a space 68. In this way as well, when the tip of the small-diameter nozzle FNS passes, the moving member 52 can be moved in the same manner. In the example shown in FIG. 10B, the space 68 side ends of the second guide slope 61 and the first guide slope 62 are flat portions 66a and 67a of about 1 mm, but the flat portions 66a and 67a are not present. May be good. By providing the flat portions 66a and 67a, the strength of the end portion of the guide member 53 can be increased. It is also useful for the flat portions 66a and 67a to be soaked in roundness so that the tip of the small-diameter nozzle FNS is slippery. Further, the lower side of the second guide slope 61 and the first guide slope 62 of the guide member 53 may have a shape that does not allow the guide member 53 to be pushed when the tip of the small-diameter nozzle FNS passes through, and is simply a space portion 68. In addition to the shape of the shape, various shapes such as a shape that recedes in a plane toward the outside, a shape that recedes due to a curved surface, and a shape that recedes in a step shape are possible.

上記の動作は、小径ノズルＦＮＳの先端を、案内部材５３に当てて、無理に移動部材５２を移動させた場合を例にとって説明したが、案内部材５４も同じ形状をしているので、小径ノズルＦＮＳの先端を案内部材５４に押し当てて、無理に移動部材５２を移動させた場合でも、移動部材５２は同様に動作し、小径ノズルＦＮＳの進入を阻止することは勿論である。もとより、案内部材５３と案内部材５４とは全く同一の形状にする必要はなく、形状は異なっていても良い。例えば案内部材５４の第２案内斜面６３，第１案内斜面６４の形状や向き、更には下側の空間部の形状のうち、少なくとも一つが異なっていてもよい。利用者が給油ノズルＦＮを給油口２２に差し込む場合を考えると、利き手によって、給油口２２対する給油ノズルＦＮの角度は左右対称にならないことが多いから、こうした点を考慮して、案内部材５３，５４の形状を決定してもよい。 The above operation has been described by taking as an example a case where the tip of the small-diameter nozzle FNS is applied to the guide member 53 to forcibly move the moving member 52. However, since the guide member 54 also has the same shape, the small-diameter nozzle Even when the tip of the FNS is pressed against the guide member 54 to forcibly move the moving member 52, the moving member 52 operates in the same manner and, of course, prevents the small-diameter nozzle FNS from entering. Of course, the guide member 53 and the guide member 54 do not have to have exactly the same shape, and the shapes may be different. For example, at least one of the shapes and orientations of the second guide slope 63 and the first guide slope 64 of the guide member 54, and the shape of the lower space portion may be different. Considering the case where the user inserts the refueling nozzle FN into the refueling port 22, the angle of the refueling nozzle FN with respect to the refueling port 22 is often not symmetrical depending on the dominant hand. The shape of 54 may be determined.

以上説明したように、本実施形態の弁別部５０は、給油装置ＦＳに適合する外径２０．５ｍｍの給油ノズルより小径（例えば外径１９．０ｍｍ）の小径ノズルＦＮＳを挿入すると、どのようにしても、移動部材５２の突当部５７がノズルの先端に突き当たり、その進入を阻止する。従って、誤って、給油装置ＦＳに適合しない給油ノズルを挿入して、誤った燃料や液体を供給してしまうといった事態の発生を抑制できる。 As described above, in the discrimination unit 50 of the present embodiment, when a small diameter nozzle FNS having a smaller diameter (for example, 19.0 mm outer diameter) than a refueling nozzle having an outer diameter of 20.5 mm suitable for the refueling device FS is inserted, how However, the abutting portion 57 of the moving member 52 abuts against the tip of the nozzle and prevents its entry. Therefore, it is possible to suppress the occurrence of a situation in which an erroneous fuel or liquid is supplied by accidentally inserting a refueling nozzle that does not conform to the refueling device FS.

次に、給油装置ＦＳに適合する給油ノズルを挿入した場合の弁別部５０の動作を説明する。給油装置ＦＳに適合する給油ノズルとして、外径２０．５ｍｍの軽油用供給ノズル、つまり大径ノズルＦＮＬを用いる。図１２に、大径ノズルＦＮＬを給油口２２に差し込んだ状態を示す。大径ノズルＦＮＬは、その大きさからして、弁別部５０の第１部分には入らない。図７Ａに示した案内部材５３と案内部材５４との離間距離ＧＤ１は、大径ノズルＦＮＬの外径より小さいので、大径ノズルＦＮＬを第１部分に差し込もうとしても、大径ノズルＦＮＬを最も移動部材５２の傾斜部５８側に当てても、大径ノズルＦＮＬの他端は、案内部材５３，５４の第１案内斜面６２，６４には当たらず、これを越えて、案内部材５３，５４の先端に当たってしまうからである。そこで、図１３に示したように、大径ノズルＦＮＬは、弁別部５０の移動部材５２とは反対側、つまり錐形ガード５１と案内部材５３と案内部材５４とで囲まれた部分（この範囲を第２部分と呼ぶ）に差し込まれることになる。 Next, the operation of the discrimination unit 50 when a refueling nozzle compatible with the refueling device FS is inserted will be described. As a refueling nozzle suitable for the refueling device FS, a light oil supply nozzle having an outer diameter of 20.5 mm, that is, a large diameter nozzle FNL is used. FIG. 12 shows a state in which the large-diameter nozzle FNL is inserted into the fuel filler port 22. Due to its size, the large-diameter nozzle FNL does not fit into the first portion of the discrimination portion 50. Since the separation distance GD1 between the guide member 53 and the guide member 54 shown in FIG. 7A is smaller than the outer diameter of the large diameter nozzle FNL, even if the large diameter nozzle FNL is inserted into the first portion, the large diameter nozzle FNL is inserted. The other end of the large-diameter nozzle FNL does not hit the first guide slopes 62, 64 of the guide members 53, 54 even when the moving member 52 is most in contact with the inclined portion 58 side, and the guide member 53, This is because it hits the tip of 54. Therefore, as shown in FIG. 13, the large-diameter nozzle FNL is on the opposite side of the discrimination portion 50 from the moving member 52, that is, a portion surrounded by the cone-shaped guard 51, the guide member 53, and the guide member 54 (this range). Is called the second part).

この場合、大径ノズルＦＮＬの先端は、錐形ガード５１の傾斜部と、案内部材５３の第２案内斜面６１と、案内部材５４の第２案内斜面６３とに接する。この状態から、大径ノズルＦＮＬを更に押し込んでいくと、各部は径方向外側に向かう力を受けるが、錐形ガード５１はカバー部材２４の返し部２３に固定されているので移動せず、第２案内斜面６１，６３が力を受けて、錐形ガード５１に対して移動部材５２を移動する。この移動の様子を、図１３，図１４に示した。移動部材５２が径方向外側に移動するに連れて、バネ部材４１，４３は延び、移動部材５２下端の突当部５７も外側に移動する。 In this case, the tip of the large-diameter nozzle FNL comes into contact with the inclined portion of the cone-shaped guard 51, the second guide slope 61 of the guide member 53, and the second guide slope 63 of the guide member 54. When the large-diameter nozzle FNL is further pushed in from this state, each part receives a force outward in the radial direction, but the cone-shaped guard 51 is fixed to the return part 23 of the cover member 24 and does not move. 2 The guide slopes 61 and 63 receive a force to move the moving member 52 with respect to the conical guard 51. The state of this movement is shown in FIGS. 13 and 14. As the moving member 52 moves outward in the radial direction, the spring members 41 and 43 extend, and the abutting portion 57 at the lower end of the moving member 52 also moves outward.

この結果、図１４に示したように、大径ノズルＦＮＬの先端が、錐形ガード５１の下端に到達した状態では、図４に示したように、移動部材５２の移動フランジ部５５は、錐形ガード５１の固定フランジ部５６から最大Ｄ１だけ離間する。この距離Ｄ１は、突当部５７の径方向の幅より大きいので、突当部５７は、大径ノズルＦＮＬの下方の位置から径方向外側に外れ、大径ノズルＦＮＬの真下にはもはや突当部５７は存在しない。しかもこの状態でも、案内部材５３と案内部材５４との離間距離は、大径ノズルＦＮＬの外径より小さいから、移動部材５２がデフォルトの位置に戻ることはできない。従って、大径ノズルＦＮＬは、突当部５７に阻止されることなく弁別部５０を越えて、開閉部材７０側に進入し、開閉部材７０の弁体７１に当たり、スプリング７５の付勢力に抗して、これを燃料タンクＦＴ側に押し開く。小径ノズルＦＮＳが移動部材５２を径方向外側に移動させつつ挿入された状態を示す図８Ｂでは、小径ノズルＦＮＳが錐形ガード５１の下端に達すると、案内部材５３または案内部材５４が小径ノズルＦＮＳから外れ、移動部材５２はデフォルトの位置に戻って、小径ノズルＦＮＳの進入を阻んだ。これに対して、大径ノズルＦＮＬを挿入した場合は、案内部材５３および５４の第２案内斜面６１，６３の最下端が大径ノズルＦＮＬに当接したままとなるので、移動部材５２は図１０Ａに示した位置に留められ、大径ノズルＦＮＬはそのまま進入でき、開閉部材７０を押し開く。開閉部材７０を押し開いて進入した大径ノズルＦＮＬは、燃料通路９０を更に進み、第２開閉機構３０を押し開いて、給油可能な位置に至る。 As a result, as shown in FIG. 14, when the tip of the large-diameter nozzle FNL reaches the lower end of the cone-shaped guard 51, as shown in FIG. 4, the moving flange portion 55 of the moving member 52 has a cone. It is separated from the fixed flange portion 56 of the shape guard 51 by a maximum of D1. Since this distance D1 is larger than the radial width of the abutting portion 57, the abutting portion 57 deviates radially outward from the position below the large-diameter nozzle FNL and no longer abuts directly under the large-diameter nozzle FNL. Part 57 does not exist. Moreover, even in this state, the distance between the guide member 53 and the guide member 54 is smaller than the outer diameter of the large-diameter nozzle FNL, so that the moving member 52 cannot return to the default position. Therefore, the large-diameter nozzle FNL crosses the discrimination portion 50 and enters the opening / closing member 70 side without being blocked by the abutting portion 57, hits the valve body 71 of the opening / closing member 70, and resists the urging force of the spring 75. Then push it open toward the fuel tank FT side. In FIG. 8B, which shows a state in which the small-diameter nozzle FNS is inserted while moving the moving member 52 outward in the radial direction, when the small-diameter nozzle FNS reaches the lower end of the conical guard 51, the guide member 53 or the guide member 54 causes the small-diameter nozzle FNS. The moving member 52 returned to the default position and blocked the entry of the small diameter nozzle FNS. On the other hand, when the large-diameter nozzle FNL is inserted, the lowermost ends of the second guide slopes 61 and 63 of the guide members 53 and 54 remain in contact with the large-diameter nozzle FNL. It is fixed at the position shown in 10A, the large diameter nozzle FNL can enter as it is, and the opening / closing member 70 is pushed open. The large-diameter nozzle FNL that has pushed open and entered the opening / closing member 70 further advances through the fuel passage 90 and pushes open the second opening / closing mechanism 30 to reach a position where refueling is possible.

以上説明したフィラーネック１００では、弁別部５０が次のように動作して、給油ノズルＦＮの外径を弁別している。
［１］給油口２２から挿入された給油ノズルＦＮが、この給油装置ＦＳに適合しない給油ノズルである小径ノズルＦＮＳである場合は、図１５上段に示したように、小径ノズルＦＮＳを、案内部材５３，５４から見て突当部５７側の第１部分に追い込んで、その進入を突当部５７で阻止する。このとき、小径ノズルＦＮＳを第１部分の辺りに挿入すると、挿入位置が第１部分に対して、多少ずれていても、案内部材５３，５４の第１案内斜面６２，６４により、小径ノズルＦＮＳは、第１部分に誘導される。小径ノズルＦＮＳの下方に突当部５７が位置するのは、案内部材５３と案内部材５４との離間距離ＧＤ１が、小径ノズルＦＮＳの外径より大きいので、小径ノズルＦＮＳにより、案内部材５３および５４を、錐形ガード５１との当接部を支点として、径方向外側に移動させることができないからである。また、無理に移動させても、小径ノズルＦＮＳの先端が案内部材５３，５４の第２案内斜面６１，６３を通り過ぎると、第２案内斜面６１，６３の下方の第２拡張下面６６は、外方に向かって後退する形状を備えるので、案内部材５３，５４と小径ノズルＦＮＳの係合が解け、移動部材５２はデフォルトの位置に戻り、突当部５７により、小径ノズルＦＮＳの進入は阻止される。 In the filler neck 100 described above, the discrimination portion 50 operates as follows to discriminate the outer diameter of the refueling nozzle FN.
[1] When the refueling nozzle FNS inserted from the refueling port 22 is a small-diameter nozzle FNS that is a refueling nozzle that does not conform to the refueling device FS, as shown in the upper part of FIG. 15, the small-diameter nozzle FNS is guided by the guide member. It is driven into the first portion on the abutting portion 57 side when viewed from 53 and 54, and the entry is blocked by the abutting portion 57. At this time, when the small-diameter nozzle FNS is inserted around the first portion, even if the insertion position is slightly deviated from the first portion, the small-diameter nozzle FNS is provided by the first guide slopes 62 and 64 of the guide members 53 and 54. Is guided to the first part. The abutting portion 57 is located below the small-diameter nozzle FNS because the separation distance GD1 between the guide member 53 and the guide member 54 is larger than the outer diameter of the small-diameter nozzle FNS. This is because it cannot be moved outward in the radial direction with the contact portion with the conical guard 51 as a fulcrum. Further, even if the small diameter nozzle FNS is forcibly moved, when the tip of the small diameter nozzle FNS passes through the second guide slopes 61 and 63 of the guide members 53 and 54, the second extended lower surface 66 below the second guide slopes 61 and 63 is outside. Since it has a shape that retracts toward the direction, the guide members 53 and 54 are disengaged from the small diameter nozzle FNS, the moving member 52 returns to the default position, and the abutting portion 57 prevents the small diameter nozzle FNS from entering. Nozzle.

［２］他方、給油口２２から挿入された給油ノズルＦＮが、この給油装置ＦＳに適合する給油ノズルである大径ノズルＦＮＬである場合は、図１５下段に示したように、大径ノズルＦＮＬは、案内部材５３，５４の第２案内斜面６１，６３にガイドされて、案内部材５３，５４から見て突当部５７とは反対側の第２部分に追い込まれる。このとき、案内部材５３と案内部材５４との離間距離ＧＤ１が、大径ノズルＦＮＬの外径より小さいので、大径ノズルＦＮＬにより、案内部材５３および５４を、錐形ガード５１との当接部を支点として押し、移動部材５２を径方向外側に移動させることができる。これにより、大径ノズルＦＮＬの下方から、突当部５７を移動させることができ、大径ノズルＦＮＬは弁別部５０を越えて燃料通路９０に進入し、開閉部材７０を開弁する。 [2] On the other hand, when the refueling nozzle FN inserted from the refueling port 22 is a large-diameter nozzle FNL which is a refueling nozzle suitable for this refueling device FS, as shown in the lower part of FIG. 15, the large-diameter nozzle FNL Is guided by the second guide slopes 61 and 63 of the guide members 53 and 54, and is driven into the second portion on the side opposite to the abutting portion 57 when viewed from the guide members 53 and 54. At this time, since the separation distance GD1 between the guide member 53 and the guide member 54 is smaller than the outer diameter of the large-diameter nozzle FNL, the large-diameter nozzle FNL brings the guide members 53 and 54 into contact with the conical guard 51. Can be pushed as a fulcrum to move the moving member 52 radially outward. As a result, the abutting portion 57 can be moved from below the large-diameter nozzle FNL, and the large-diameter nozzle FNL enters the fuel passage 90 beyond the discrimination portion 50 and opens the opening / closing member 70.

図１５に示したように、小径ノズルＦＮＳを導いて進入を阻止する第１部分と大径ノズルＦＮＬを導いて進入を許容する第２部分とは連続しており、両者を合わせた形状が一続きの開口部に相当する。 As shown in FIG. 15, the first part that guides the small-diameter nozzle FNS to prevent entry and the second part that guides the large-diameter nozzle FNL to allow entry are continuous, and the combined shape of the two is one. Corresponds to the continuous opening.

以上説明したように、第１実施形態の給油装置ＦＳは、給油ノズルの外径を、案内部材５３と案内部材５４との離間距離ＧＤ１を、あたかもゲージのように利用して、精度良く弁別することができる。このため、製造公差を含めれば、差異が１ｍｍ程度のアドブルー用給油ノズル（外径１９．０ｍｍ）とガソリン用の給油ノズル（外径２０．５ｍｍ）とを精度良く弁別し、給油装置ＦＳに適合しない給油ノズルの進入を妨げ、誤って、異なる種類の燃料を供給する虞を低減できる。この場合、第２部分の大きさを外径２０．５ｍｍを越えるノズルが通過出来ないようにしておけば、軽油用の給油ノズルの進入を許さないようにすることも容易である。他方、給油装置ＦＳを軽油用に設計し、案内部材５３，５４の離間距離を、小径ノズルＦＮＳであるガソリン用のノズル径２０．５ｍｍより僅かに大きく、大径ノズルＦＮＬである軽油用のノズル径２３．５ｍｍより小さく、例えば２２．０ｍｍに設定し、これに合わせて、第１部分と第２部分の径を設計すれば、同様の構成で、軽油用給油ノズルは進入でき、ガソリン用のノズルは進入できない給油装置ＦＳを構成することも容易である。なお、この場合、アドブルー用のノズル（外径１９ｍｍ）であっても、これを適合しないノズルとして弁別し、進入を許さないことは、小径ノズルＦＮＳと同様である。 As described above, the refueling device FS of the first embodiment accurately discriminates the outer diameter of the refueling nozzle by using the separation distance GD1 between the guide member 53 and the guide member 54 as if it were a gauge. be able to. Therefore, if the manufacturing tolerance is included, the ad blue refueling nozzle (outer diameter 19.0 mm) with a difference of about 1 mm and the gasoline refueling nozzle (outer diameter 20.5 mm) are accurately discriminated and compatible with the refueling device FS. It can prevent the entry of the refueling nozzle and reduce the risk of accidentally supplying different types of fuel. In this case, if the size of the second portion is set so that the nozzle having an outer diameter exceeding 20.5 mm cannot pass through, it is easy to prevent the refueling nozzle for light oil from entering. On the other hand, the refueling device FS is designed for light oil, and the separation distance between the guide members 53 and 54 is slightly larger than the nozzle diameter of 20.5 mm for gasoline, which is a small diameter nozzle FNS, and the nozzle for light oil, which is a large diameter nozzle FNL. If the diameter is smaller than 23.5 mm, for example, set to 22.0 mm, and the diameters of the first part and the second part are designed according to this, the light oil refueling nozzle can enter with the same configuration, and for gasoline. It is also easy to configure a refueling device FS in which the nozzle cannot enter. In this case, even if the nozzle is for AdBlue (outer diameter 19 mm), it is discriminated as a nozzle that does not conform to the nozzle and does not allow entry, which is the same as the small diameter nozzle FNS.

Ｂ．第２実施形態：
次に、第２実施形態としての給油装置ＦＳに用いるフィラーネック２００について説明する。図１６は、第２実施形態としてのフィラーネック２００の概略構成を示す斜視図である。図１６も図２同様、燃料通路を形成する部材の図示手前側を外した状態で描かれている。第２実施形態のフィラーネック２００には、給油口１２２を形成するカバー部材１２４側から、第１開閉機構１４０、第２開閉機構１３０が内蔵されている。第１開閉機構１４０および第２開閉機構１３０は、いずれも給油ノズルＦＮの到達範囲にあり、給油装置ＦＳに適合する給油ノズルＦＮを差し込むことにより開かれることは第１実施形態と同様である。但し、第２実施形態の給油装置ＦＳは、軽油用に設計されており、軽油用の給油ノズル（外径２３．５ｍｍ）がこの給油装置ＦＳ適合する大径ノズルＦＮＬであり、ガソリン用の給油ノズル（外径２０．５）やそれ以下の外径の給油ノズルは、適合しない小径ノズルＦＮＳであるとして弁部される。 B. Second embodiment:
Next, the filler neck 200 used in the refueling device FS as the second embodiment will be described. FIG. 16 is a perspective view showing a schematic configuration of the filler neck 200 as the second embodiment. Similar to FIG. 2, FIG. 16 is drawn with the front side of the member forming the fuel passage removed. The filler neck 200 of the second embodiment has a first opening / closing mechanism 140 and a second opening / closing mechanism 130 built in from the cover member 124 side forming the fuel filler port 122. Both the first opening / closing mechanism 140 and the second opening / closing mechanism 130 are within the reach of the refueling nozzle FN, and are opened by inserting a refueling nozzle FN compatible with the refueling device FS, as in the first embodiment. However, the refueling device FS of the second embodiment is designed for light oil, and the refueling nozzle for light oil (outer diameter 23.5 mm) is a large diameter nozzle FNL compatible with this refueling device FS, and refueling for gasoline. Nozzles (outer diameter 20.5) and refueling nozzles with an outer diameter smaller than that are valved as incompatible small diameter nozzles FNS.

第２開閉機構１３０は、図示するように、最も燃料タンク側において燃料通路形成部１２０の下部に配設され、燃料通路１９０を開閉する。この第２開閉機構１３０は、燃料通路１９０を開閉する第２開閉弁１３１と、燃料通路形成部１２０に固定されて第２開閉弁１３１を付勢するスプリング（図示省略）と、を備える。第２開閉弁１３１は、燃料タンク側から挿入側への液体燃料の逆流を防止するフラップであり、シール用のシール部材を備える。第２開閉弁１３１は、燃料通路形成部１２０に設けられた回転軸１３２で回転可能に支持され、スプリングにより、第２開閉弁１３１を燃料通路１９０が閉まる方向に付勢されている。 As shown in the figure, the second opening / closing mechanism 130 is arranged below the fuel passage forming portion 120 on the most fuel tank side, and opens / closes the fuel passage 190. The second on-off mechanism 130 includes a second on-off valve 131 that opens and closes the fuel passage 190, and a spring (not shown) that is fixed to the fuel passage forming portion 120 and urges the second on-off valve 131. The second on-off valve 131 is a flap for preventing the backflow of liquid fuel from the fuel tank side to the insertion side, and includes a sealing member for sealing. The second on-off valve 131 is rotatably supported by a rotating shaft 132 provided in the fuel passage forming portion 120, and the second on-off valve 131 is urged by a spring in a direction in which the fuel passage 190 is closed.

第２開閉機構１３０よりも給油口１２２側に設けられた第１開閉機構１４０は、ゲージ部材および作動部材として機能する弁別部１５０と、この弁別部１５０よりも燃料タンクＦＴ側に設けられた開閉部材１７０と、を備える。弁別部１５０は全て樹脂により形成されている。弁別部１５０の構成を、図１７から図２９を用いて説明する。弁別部１５０は、給油装置ＦＳに適合する給油ノズルが進入し得る円形の開口を有し、内側にテーパ状の錐形ガード１５１と、この錐形ガード１５１を移動可能に保持すると円環形状の保持部材１４５と、錐形ガード１５１の途中に設けられた起動部材１１０とを備える。錐形ガード１５１は、上端外周に上縁部を有するが、第１実施形態と異なり、錐形ガード１５１の上端は固定されていない。このため、錐形ガード１５１は、給油ノズルＦＮの挿入時に、給油ノズルＦＮの先端の当たり方によっては、後述する様に移動する。 The first opening / closing mechanism 140 provided on the fuel filler port 122 side of the second opening / closing mechanism 130 has a discrimination portion 150 that functions as a gauge member and an operating member, and an opening / closing portion 150 provided on the fuel tank FT side of the discrimination portion 150. A member 170 and a member 170 are provided. The discrimination portion 150 is entirely made of resin. The configuration of the discrimination unit 150 will be described with reference to FIGS. 17 to 29. The discrimination unit 150 has a circular opening through which a refueling nozzle suitable for the refueling device FS can enter, and has a tapered conical guard 151 inside and a ring shape when the conical guard 151 is movably held. The holding member 145 and the starting member 110 provided in the middle of the cone-shaped guard 151 are provided. The cone-shaped guard 151 has an upper edge portion on the outer periphery of the upper end, but unlike the first embodiment, the upper end of the cone-shaped guard 151 is not fixed. Therefore, when the refueling nozzle FN is inserted, the conical guard 151 moves as described later depending on how the tip of the refueling nozzle FN hits.

第２実施形態の錐形ガードは１５１は、起動部材１１０が設けられている点を除けば、概ね、第１実施形態の錐形ガード５１と移動部材５２とが合体した形状をしている。このため、錐形ガード１５１の内側には案内部材１５３，１５４が、錐形ガード１５１の下端には突当部１５７が、第１実施形態と同様、設けられている。案内部材１５３と案内部材１５４とは、所定の距離だけ隔てて、互いに向き合っている。図１８では、小径の給油ノズルを参考用として破線で示している。案内部材１５３の上半分には、互いに傾きの方向が異なる斜面である第２案内斜面１６１および第１案内斜面１６２が設けられ、案内部材１５４の上半分には、互いに傾きの方向が異なる第２案内斜面１６３および第１案内斜面１６４が設けられている。また、案内部材１５３の下半分は、図１７に示したように、第１，第２案内斜面１６２，１６１の終端から、それぞれ外方に向かって後退する形状とされている。第１案内斜面１６２の下の斜面を第１拡張下面１６７と呼び、第２案内斜面１６１の下の斜面を第２拡張下面１６６と呼ぶ。図１８〜図２０では、案内部材１５４側の下半分の形状は示されていないが、案内部材１５３，１５４は、第１実施形態の案内部材５３，５４と同様の形状を備え、両者は、鏡像関係の形状をしている。この案内部材１５３，１５４の第１案内斜面１６２，１６４は、突当部１５７側を向いており、第２案内斜面１６１，１６３は、突当部１５７とは反対側を向いている。 The cone-shaped guard of the second embodiment has a shape in which the cone-shaped guard 51 of the first embodiment and the moving member 52 are united, except that the starting member 110 is provided. Therefore, the guide members 153 and 154 are provided inside the cone-shaped guard 151, and the abutting portion 157 is provided at the lower end of the cone-shaped guard 151 as in the first embodiment. The guide member 153 and the guide member 154 face each other with a predetermined distance from each other. In FIG. 18, the small diameter refueling nozzle is shown by a broken line for reference. The upper half of the guide member 153 is provided with a second guide slope 161 and a first guide slope 162, which are slopes having different inclination directions, and the upper half of the guide member 154 has a second inclination direction different from each other. A guide slope 163 and a first guide slope 164 are provided. Further, as shown in FIG. 17, the lower half of the guide member 153 has a shape that recedes outward from the ends of the first and second guide slopes 162 and 161. The slope below the first guide slope 162 is referred to as a first extended lower surface 167, and the slope below the second guide slope 161 is referred to as a second extended lower surface 166. Although the shape of the lower half of the guide member 154 side is not shown in FIGS. 18 to 20, the guide members 153 and 154 have the same shape as the guide members 53 and 54 of the first embodiment, and both of them have the same shape. It has a mirror image-related shape. The first guide slopes 162 and 164 of the guide members 153 and 154 face the abutting portion 157 side, and the second guide slopes 161 and 163 face the opposite side to the abutting portion 157.

錐形ガード１５１下部の突当部１５７は、錐形ガード１５１の下端において、錐形ガード１５１の内側に所定距離だけ突き出した円弧形状をしている。また、錐形ガード１５１を給油口１２２側から平面視した場合の錐形ガード１５１の開口部の形状を、図１９に示した。図において、突当部１５７が存在しないと仮定した場合の、錐形ガード１５１の下端側開口を、実線で、開口部形状ＧＬとして示した。平面視においては、案内部材１５３，１５４と錐形ガード１５１の下端とが一続きの開口部を形成する開口部形状ＧＬのうち、突当部１５７の存在する側を弁別部１５０の第１部分と呼ぶ。この第１部分は、この給油装置ＦＳに適合する給油ノズルＦＮより小径の給油ノズルが納まるように設計されている。第２実施形態において、案内部材１５３の径方向内側端部と案内部材１５４の径方向内側端部とが構成する内寸箇所の離間距離ＧＤ２も、２２ｍｍとされている。離間距離ＧＤ２は、小径ノズルＦＮＳの外径より僅かに大きく、大径ノズルＦＮＬの外径より少し小さい。 The abutting portion 157 at the lower part of the conical guard 151 has an arc shape protruding from the inside of the conical guard 151 by a predetermined distance at the lower end of the conical guard 151. Further, FIG. 19 shows the shape of the opening of the cone-shaped guard 151 when the cone-shaped guard 151 is viewed in a plan view from the fuel filler port 122 side. In the figure, the lower end side opening of the cone-shaped guard 151, assuming that the abutting portion 157 does not exist, is shown by a solid line as the opening shape GL. In a plan view, of the opening shape GL in which the guide members 153 and 154 and the lower end of the conical guard 151 form a continuous opening, the side where the abutting portion 157 exists is the first portion of the discrimination portion 150. Called. The first part is designed to accommodate a refueling nozzle having a diameter smaller than that of the refueling nozzle FN compatible with the refueling device FS. In the second embodiment, the separation distance GD2 of the inner dimension portion formed by the radial inner end portion of the guide member 153 and the radial inner end portion of the guide member 154 is also set to 22 mm. The separation distance GD2 is slightly larger than the outer diameter of the small diameter nozzle FNS and slightly smaller than the outer diameter of the large diameter nozzle FNL.

錐形ガード１５１には、突当部１５７と反対側に、起動部材１１０が設けられている。この起動部材１１０は、図１６，図１７に示したよう、錐形ガード５１の傾斜部よりはやや小さく角度に保持されている。起動部材１１０はこの位置から下方、つまり開閉部材１７０方向に回動可能に、回転軸１１１により錐形ガード５１に保持されている。また、起動部材１１０はスプリング１１２により、上方、つまり給油口１２２側に所定の弾発力Ｆ１で、付勢されている。 The cone-shaped guard 151 is provided with a starting member 110 on the opposite side of the abutting portion 157. As shown in FIGS. 16 and 17, the starting member 110 is held at an angle slightly smaller than the inclined portion of the cone-shaped guard 51. The starting member 110 is held by the conical guard 51 by the rotating shaft 111 so as to be rotatable downward from this position, that is, in the direction of the opening / closing member 170. Further, the starting member 110 is urged upward by the spring 112, that is, on the fuel filler port 122 side with a predetermined elastic force F1.

起動部材１１０を備えた錐形ガード５１は、係合部１４３により、全体として、保持部材１４５に保持されている。この保持部材１４５は、起動部材１１０および突当部１５７の中心を通る軸に沿った２箇所に設けられたスライド部材１４５ｂ，１４５ｆを備える。このスライド部材１４５ｂ，１４５ｆは、燃料通路形成部１２０に固定された支持柱１４６，１４７に設けられた溝に、スライド可能に嵌まり合っている。従って、保持部材１４５は、スライド部材１４５ｂまたはスライド部材１４５ｆ方向に移動可能に支承されている。 The cone-shaped guard 51 provided with the starting member 110 is held by the holding member 145 as a whole by the engaging portion 143. The holding member 145 includes slide members 145b and 145f provided at two locations along an axis passing through the center of the starting member 110 and the abutting portion 157. The slide members 145b and 145f are slidably fitted in the grooves provided in the support columns 146 and 147 fixed to the fuel passage forming portion 120. Therefore, the holding member 145 is movably supported in the slide member 145b or the slide member 145f direction.

保持部材１４５の移動は、錐形ガード１５１の傾斜部または起動部材１１０を、給油ノズルＦＮの先端が押すことによって生じる。錐形ガード１５１の傾斜部または起動部材１１０を押すことで、保持部材１４５を、燃料通路１９０の径方向にスライドさせるのに必要な力を、ここでは移動力Ｆ２と呼ぶ。本実施形態では、保持部材１４５を、径方向のいずれかの方向にスプリングなどで付勢していないので、スプリング１１２による弾発力Ｆ１とこの移動力Ｆ２とには、
Ｆ１＞＞Ｆ２
の関係が成り立っている。なお、錐形ガード１５１や起動部材１１０に移動力Ｆ２が掛かっていない状態で、保持部材１４５が最も支持柱１４７側に位置するように、支持柱１４６と保持部材１４５との間にコイルバネなどを配置し、支持柱１４６に対して保持部材１４５を支持柱１４７側に付勢してもよい。保持部材１４５が最も支持柱１４７側となる位置を、本実施形態では、錐形ガード１５１のデフォルト位置と呼ぶ。 The movement of the holding member 145 is caused by the tip of the refueling nozzle FN pushing the inclined portion of the cone-shaped guard 151 or the starting member 110. The force required to slide the holding member 145 in the radial direction of the fuel passage 190 by pushing the inclined portion or the starting member 110 of the conical guard 151 is referred to as a moving force F2 here. In the present embodiment, since the holding member 145 is not urged by a spring or the like in any direction in the radial direction, the elastic force F1 by the spring 112 and the moving force F2 are combined with each other.
F1 >> F2
The relationship is established. A coil spring or the like is inserted between the support column 146 and the holding member 145 so that the holding member 145 is located closest to the support column 147 in a state where the moving force F2 is not applied to the cone-shaped guard 151 or the starting member 110. It may be arranged and the holding member 145 may be urged toward the support column 147 with respect to the support column 146. In the present embodiment, the position where the holding member 145 is closest to the support column 147 is referred to as the default position of the cone-shaped guard 151.

こうした錐形ガード１５１や保持部材１４５を備える弁別部１５０の下側、つまり燃料タンクＦＴ側に設けられた開閉部材１７０は、図１９における第１部分を閉塞する弁体１７１、この弁体１７１を回転可能に燃料通路形成部２０に保持する保持軸１７３、一端が保持軸１７３に固定され他端が弁体１７１の下面に接するよう配置されたスプリング１７５、を備える。弁体１７１は、スプリング１７５によって、閉塞方向に付勢されているから、外力が働かなければ、燃料通路１９０を閉塞する位置に保たれる。 The opening / closing member 170 provided on the lower side of the discrimination portion 150 provided with the conical guard 151 and the holding member 145, that is, on the fuel tank FT side, is a valve body 171 that closes the first portion in FIG. It includes a holding shaft 173 that is rotatably held by the fuel passage forming portion 20, and a spring 175 that is fixed to the holding shaft 173 at one end and is arranged so that the other end is in contact with the lower surface of the valve body 171. Since the valve body 171 is urged in the closing direction by the spring 175, the valve body 171 is kept in a position where the fuel passage 190 is closed if no external force is applied.

以上説明した第２実施形態のフィラーネック２００の動作について説明する。小径ノズルＦＮＳが給油装置ＦＳに挿入された場合であって、小径ノズルＦＮＳの先端が、錐形ガード１５１の傾斜部５８等に接することなく、第１部分に挿入された場合には、図１８に示したように、小径ノズルＦＮＳの先端は、錐形ガード１５１下端の突当部１５７に突き当たり、それ以上進入できないので、開閉部材１７０の弁体１７１を開方向に移動させることはない。小径ノズルＦＮＳの挿入位置が第１部分に対して、多少ずれていても、案内部材１５３，１５４の第１案内斜面１６２，１６４により、小径ノズルＦＮＳは、第１部分に誘導される。これらは第１実施形態と同様である。 The operation of the filler neck 200 of the second embodiment described above will be described. When the small-diameter nozzle FNS is inserted into the refueling device FS and the tip of the small-diameter nozzle FNS is inserted into the first portion without contacting the inclined portion 58 or the like of the conical guard 151, FIG. As shown in the above, the tip of the small-diameter nozzle FNS abuts on the abutting portion 157 at the lower end of the conical guard 151 and cannot enter any further, so that the valve body 171 of the opening / closing member 170 is not moved in the opening direction. Even if the insertion position of the small-diameter nozzle FNS is slightly deviated from the first portion, the small-diameter nozzle FNS is guided to the first portion by the first guide slopes 162 and 164 of the guide members 153 and 154. These are the same as in the first embodiment.

他方、図２０に示したように、小径ノズルＦＮＳが突当部１５７を避けた位置で、給油口１２２から進入した場合には、小径ノズルＦＮＳの突当部１５７側とは反対側の端部が、錐形ガード１５１に設けられた起動部材１１０に当接する。この状態では、図２０のＸＸＩ−ＸＸＩ断面図である図２１に示したように、小径ノズルＦＮＳの先端は、起動部材１１０に当たり、これを下方向、つまり開閉部材１７０側に押す。このとき、起動部材１１０は、スプリング１１２により弾発力Ｆ１で上方向に付勢されているので、小径ノズルＦＮＳにより起動部材１１０を押す力ＦＦが働き、この力が、
ＦＦ＞Ｆ２
であれば、起動部材１１０が押し下げられる前に、保持部材１４５、延いては錐形ガード１５１を支持柱１４６側に移動する。 On the other hand, as shown in FIG. 20, when the small-diameter nozzle FNS enters from the fuel filler port 122 at a position avoiding the abutting portion 157, the end portion of the small-diameter nozzle FNS opposite to the abutting portion 157 side. Abuts on the starting member 110 provided on the conical guard 151. In this state, as shown in FIG. 21 which is a cross-sectional view of XXI-XXI of FIG. 20, the tip of the small diameter nozzle FNS hits the starting member 110 and pushes it downward, that is, toward the opening / closing member 170. At this time, since the starting member 110 is urged upward by the elastic force F1 by the spring 112, a force FF that pushes the starting member 110 by the small diameter nozzle FNS acts, and this force is generated.
FF> F2
If so, the holding member 145, and thus the conical guard 151, is moved to the support column 146 side before the starting member 110 is pushed down.

この結果、図２２に示したように、保持部材１４５の移動と共に、錐形ガード１５１も支持柱１４６側に移動し、錐形ガード１５１下端の突当部１５７も、矢印ＤＲ方向に移動し、結果的に小径ノズルＦＮＳの下に位置する。従って、このまま小径ノズルＦＮＳを奥に押し込んでいくと、やがて小径ノズルＦＮＳは、１１０を矢印ＤＲ方向に押しやり、図２３に示したように、先端が突当部１５７に突き当たってそれ以上進入できなくなる。 As a result, as shown in FIG. 22, as the holding member 145 moves, the cone-shaped guard 151 also moves toward the support pillar 146, and the abutting portion 157 at the lower end of the cone-shaped guard 151 also moves in the arrow DR direction. As a result, it is located below the small diameter nozzle FNS. Therefore, if the small-diameter nozzle FNS is pushed inward as it is, the small-diameter nozzle FNS eventually pushes 110 in the direction of arrow DR, and as shown in FIG. 23, the tip of the small-diameter nozzle FNS hits the abutting portion 157 and can enter further. It disappears.

このように、第２実施形態のフィラーネック２００は、給油装置ＦＳに適合しない小径ノズルＦＮＳを給油口１２２から挿入すると、小径ノズルＦＮＳは、錐形ガード１５１の開口のどこに挿入しても、図２０に示した第１部分に導かれることになり、突当部１５７によって、それ以上の進入を阻まれることになる。なお、第１実施形態と同様、小径ノズルＦＮＳの先端を無理に片側の案内部材１５３の第２案内斜面１６１に押し当てて、起動部材１１０を押下げた場合でも、小径ノズルＦＮＳの先端が、第２案内斜面１６１の最下端を通り過ぎると、第２案内斜面１６１の最下端より下側は、第２拡張下面１６６として、外方に向かって後退する形状とされているので、小径ノズルＦＮＳの先端を案内部材１５３の第２案内斜面１６１に当てて、これを押すことは、もはやできない。このため、押し下げられていた起動部材１１０はスプリング１１２の力により元の位置に戻り、保持部材１４５、延いては錐形ガード１５１は支持柱１４６側に移動する。この結果、突当部１５７が小径ノズルＦＮＳの下に配置されることになり、小径ノズルＦＮＳのそれ以上の進入は阻止される。案内部材１５３の第２案内斜面１６１，第１案内斜面１６２より下側、つまり開閉部材１７０側の形状については、第１実施形態と同様に、第２拡張下面１６６，第１拡張下面１６７以外の形状、例えば単なる空間部とした形状などであっても差し支えない。案内部材１５４についても同様である。 As described above, in the filler neck 200 of the second embodiment, when the small diameter nozzle FNS that does not conform to the refueling device FS is inserted from the refueling port 122, the small diameter nozzle FNS is inserted anywhere in the opening of the conical guard 151. It will be guided to the first part shown in 20, and the abutment portion 157 will prevent further entry. As in the first embodiment, even when the tip of the small diameter nozzle FNS is forcibly pressed against the second guide slope 161 of the guide member 153 on one side to push down the starting member 110, the tip of the small diameter nozzle FNS is still present. When passing through the lowermost end of the second guide slope 161, the lower side of the second guide slope 161 below the lowermost end is the second extended lower surface 166, which is shaped to recede outward. It is no longer possible to hit the tip against the second guide slope 161 of the guide member 153 and push it. Therefore, the starting member 110 that has been pushed down returns to the original position by the force of the spring 112, and the holding member 145 and the cone-shaped guard 151 move to the support column 146 side. As a result, the abutting portion 157 is arranged under the small diameter nozzle FNS, and further entry of the small diameter nozzle FNS is prevented. Regarding the shape of the guide member 153 below the second guide slopes 161 and the first guide slope 162, that is, the opening / closing member 170 side, the same as in the first embodiment, other than the second extended lower surface 166 and the first extended lower surface 167. It does not matter if it has a shape, for example, a shape that is simply a space. The same applies to the guide member 154.

これに対して、この給油装置ＦＳに適合する外径を備えた大径ノズルＦＮＬを、給油口１２２から挿入した場合は、大径ノズルＦＮＬは、錐形ガード１５１の開口の第１部分には、案内部材１５３，１５４が邪魔して差し入れられないので、図２４に示すように、錐形ガード１５１の開口の第２部分に差し入れることになる。この状態を、大径ノズルＦＮＬは、図２４のＸＸＶ−ＸＸＶ断面図である図２５にしめした。この状態から、更に大径ノズルＦＮＬを押し込んでいくと、大径ノズルＦＮＬの突当部１５７側の端部は、案内部材１５３，１５４の第２案内斜面１６１，１６３に当たり、大径ノズルＦＮＬの反対側は、起動部材１１０に当たる。この状態では、大径ノズルＦＮＬが案内部材１５３，１５４に当たっているので、ここを起点に、起動部材１１０が押されることになり、保持部材１４５による錐形ガード１５１の移動は生じない。大径ノズルＦＮＬを押し込む力ＦＦが、起動部材１１０を付勢するスプリング１１２の弾発力Ｆ１に対して、
ＦＦ＞Ｆ１
であれば、起動部材１１０は、開閉部材１７０側に回転していく。起動部材１１０の回転につれて、大径ノズルＦＮＬを受け入れる第２部分から、平面視において、起動部材１１０は後退していき、図２６に示したように、大径ノズルＦＮＬは、やがて錐形ガード１５１の開口部の第２部分に挿入される。 On the other hand, when a large-diameter nozzle FNL having an outer diameter suitable for the refueling device FS is inserted from the refueling port 122, the large-diameter nozzle FNL is inserted into the first portion of the opening of the conical guard 151. Since the guide members 153 and 154 cannot be inserted in the way, they are inserted into the second portion of the opening of the conical guard 151 as shown in FIG. 24. This state is shown in FIG. 25, which is a cross-sectional view of XXV-XXV of FIG. 24, for the large-diameter nozzle FNL. When the large-diameter nozzle FNL is further pushed in from this state, the end portion of the large-diameter nozzle FNL on the abutting portion 157 side hits the second guide slopes 161 and 163 of the guide members 153 and 154, and the large-diameter nozzle FNL The other side corresponds to the starting member 110. In this state, since the large-diameter nozzle FNL hits the guide members 153 and 154, the starting member 110 is pushed from this point, and the conical guard 151 does not move by the holding member 145. The force FF that pushes the large-diameter nozzle FNL with respect to the elastic force F1 of the spring 112 that urges the starting member 110.
FF> F1
If so, the starting member 110 rotates toward the opening / closing member 170. As the start member 110 rotates, the start member 110 recedes from the second portion that receives the large diameter nozzle FNL in a plan view, and as shown in FIG. 26, the large diameter nozzle FNL eventually becomes a conical guard 151. It is inserted into the second part of the opening of.

このときの各部の動きを、図２７，図２８に示した。大径ノズルＦＮＬを給油口１２２に挿入して、その先端が、案内部材１５３，１５４の第２案内斜面１６１，１６３と起動部材１１０とに当たる（図２２）。更に大径ノズルＦＮＬを挿入すると、これに連れて、起動部材１１０が回転して、その先端は矢印ＤＤ方向（図２７）、つまり開閉部材１７０側で、かつ径方向外側に移動する。更に、大径ノズルＦＮＬを挿入すると、起動部材１１０の先端は、大径ノズルＦＮＬの側面に当たる位置まで開く（図２８）。この間、錐形ガード１５１は、大径ノズルＦＮＬが案内部材１５３，１５４の第２案内斜面１６１，１６３に当接していることから、移動することはなく、大径ノズルＦＮＬの下に、突当部１５７が移動してくることはない。この結果、図２９に示すように、給油装置ＦＳに適合する給油ノズルＦＮである大径ノズルＦＮＬは、案内部材１５３，１５４および起動部材１１０の回転した先端によって囲まれる領域、つまり図２６に示した第２部分に嵌まり、突当部１５７に突き当たることなく進入し、開閉部材１７０の弁体１７１当たってこれを押し開き、燃料通路１９０に進入する。開閉部材１７０を押し開いて進入した大径ノズルＦＮＬは、燃料通路９０を更に進み、第２開閉機構１３０を押し開いて、給油可能な位置に至る。 The movements of each part at this time are shown in FIGS. 27 and 28. The large-diameter nozzle FNL is inserted into the fuel filler port 122, and the tip of the large-diameter nozzle FNL hits the second guide slopes 161 and 163 of the guide members 153 and 154 and the start member 110 (FIG. 22). When the large-diameter nozzle FNL is further inserted, the starting member 110 rotates along with the large-diameter nozzle FNL, and its tip moves in the direction of arrow DD (FIG. 27), that is, on the opening / closing member 170 side and outward in the radial direction. Further, when the large-diameter nozzle FNL is inserted, the tip of the starting member 110 opens to a position where it hits the side surface of the large-diameter nozzle FNL (FIG. 28). During this time, the cone-shaped guard 151 does not move because the large-diameter nozzle FNL is in contact with the second guide slopes 161 and 163 of the guide members 153 and 154, and abuts under the large-diameter nozzle FNL. The part 157 does not move. As a result, as shown in FIG. 29, the large-diameter nozzle FNL, which is a refueling nozzle FN compatible with the refueling device FS, is shown in a region surrounded by the rotated tips of the guide members 153 and 154 and the starting member 110, that is, FIG. It fits into the second portion, enters without hitting the abutting portion 157, hits the valve body 171 of the opening / closing member 170, pushes it open, and enters the fuel passage 190. The large-diameter nozzle FNL that has pushed open and entered the opening / closing member 170 further advances through the fuel passage 90 and pushes open the second opening / closing mechanism 130 to reach a position where refueling is possible.

以上説明したフィラーネック２００では、弁別部１５０が次のように動作して、給油ノズルＦＮの外径を弁別している。
（Ａ）給油口１２２から挿入された給油ノズルＦＮが、この給油装置ＦＳに適合しない給油ノズルである小径ノズルＦＮＳである場合は、小径ノズルＦＮＳを、案内部材１５３，１５４から見て突当部１５７側の第１部分に追い込んで、その進入を突当部１５７で阻止する。このとき、小径ノズルＦＮＳを第１部分の辺りに挿入すると、挿入位置が第１部分に対して、多少ずれていても、案内部材１５３，１５４の第１案内斜面１６２，１６４により、小径ノズルＦＮＳは、第１部分に誘導される。小径ノズルＦＮＳの下方に突当部１５７が位置するのは、案内部材１５３と案内部材１５４との離間距離ＧＤ２が、小径ノズルＦＮＳの外径より大きいので、小径ノズルＦＮＳにより、起動部材１１０との当接部を支点として、錐形ガード１５１を径方向外側（矢印ＤＲ方向）に移動させることができないからである。このため、突当部１５７より、小径ノズルＦＮＳの進入は阻止される。また、無理に移動させても、小径ノズルＦＮＳの先端が案内部材１５３，１５４の第２案内斜面１６１，１６３を通り過ぎると、第２案内斜面１６１，６３の下方の第２拡張下面１６６は、外方に向かって後退する形状を備えるので、案内部材１５３，１５４と小径ノズルＦＮＳの係合が解け、保持部材１４５はデフォルトの位置に戻り、突当部１５７により、小径ノズルＦＮＳの進入は阻止される。 In the filler neck 200 described above, the discrimination unit 150 operates as follows to discriminate the outer diameter of the refueling nozzle FN.
(A) When the refueling nozzle FNS inserted from the refueling port 122 is a small-diameter nozzle FNS that is a refueling nozzle that does not conform to this refueling device FS, the small-diameter nozzle FNS is abutted portion when viewed from the guide members 153 and 154. It drives into the first part on the 157 side and blocks the entry at the abutting part 157. At this time, when the small-diameter nozzle FNS is inserted around the first portion, even if the insertion position is slightly deviated from the first portion, the small-diameter nozzle FNS is provided by the first guide slopes 162 and 164 of the guide members 153 and 154. Is guided to the first part. The abutting portion 157 is located below the small-diameter nozzle FNS because the separation distance GD2 between the guide member 153 and the guide member 154 is larger than the outer diameter of the small-diameter nozzle FNS. This is because the conical guard 151 cannot be moved radially outward (arrow DR direction) with the contact portion as a fulcrum. Therefore, the entry of the small-diameter nozzle FNS is blocked from the abutting portion 157. Further, even if the small diameter nozzle FNS is forcibly moved, when the tip of the small diameter nozzle FNS passes through the second guide slopes 161 and 163 of the guide members 153 and 154, the second extended lower surface 166 below the second guide slopes 161, 63 is outside. Since it has a shape that retracts toward the direction, the guide members 153 and 154 are disengaged from the small diameter nozzle FNS, the holding member 145 returns to the default position, and the abutting portion 157 prevents the small diameter nozzle FNS from entering. Nozzle.

（Ｂ）他方、給油口１２２から挿入された給油ノズルＦＮが、この給油装置ＦＳに適合する給油ノズルである大径ノズルＦＮＬである場合は、案内部材１５３と案内部材１５４との離間距離ＧＤ２が、大径ノズルＦＮＬの外径より小さいので、大径ノズルＦＮＬは、必ず案内部材１５３，１５４の第２案内斜面１６１，１６３に当接する。この結果、大径ノズルＦＮＬが進入しても、錐形ガード１５１の移動は生じず、他方、起動部材１１０の回転は生じるので、大径ノズルＦＮＬは、突当部１５７が存在しない第２部分に進入する。これにより、大径ノズルＦＮＬは弁別部１５０を越えて燃料通路１９０に進入し、開閉部材１７０を開弁する。 (B) On the other hand, when the refueling nozzle FN inserted from the refueling port 122 is a large-diameter nozzle FNL which is a refueling nozzle suitable for this refueling device FS, the separation distance GD2 between the guide member 153 and the guide member 154 is set. Since it is smaller than the outer diameter of the large-diameter nozzle FNL, the large-diameter nozzle FNL always comes into contact with the second guide slopes 161 and 163 of the guide members 153 and 154. As a result, even if the large-diameter nozzle FNL enters, the cone-shaped guard 151 does not move, while the starting member 110 rotates. Therefore, the large-diameter nozzle FNL has a second portion in which the abutting portion 157 does not exist. Enter into. As a result, the large-diameter nozzle FNL crosses the discrimination portion 150 and enters the fuel passage 190 to open the opening / closing member 170.

以上説明したように、第２実施形態の給油装置ＦＳは、給油ノズルの外径を、案内部材１５３と案内部材１５４との離間距離ＧＤ２を、あたかもゲージのように利用して、精度良く弁別することができる。このため、製造公差を含めれば、差異が２ｍｍ程度のガソリン用給油ノズル（外径２０．５ｍｍ）と軽油用の給油ノズル（外径２３．５ｍｍ）とを精度良く弁別し、給油装置ＦＳに適合しない給油ノズルの進入を妨げ、誤って、異なる種類の燃料を供給する虞を低減できることは、第１実施形態と同様である。なお、上述したフィラーネック２００であれば、アドブルー用のノズル（外径１９．０ｍｍ）であっても、これを適合しないノズルとして弁別し、進入を許さないことは、小径ノズルＦＮＳと同様である。他方、給油装置ＦＳをガソリン用に設計し、案内部材１５３，１５４の離間距離を、アドブルー用のノズル径である１９．０ｍｍより僅かに大きく、ガソリン用のノズル径２０．５ｍｍより小さく、例えば１９．７５ｍｍに設定し、これに併せて、第１部分と第２部分の径を設計すれば、同様の構成で、ガソリン用給油ノズルは進入でき、アドブルー用のノズルは進入できない給油装置ＦＳを構成することも容易である。この場合、第２部分の大きさを外径２２ｍｍ以上のノズルが通過出来ないようにしておけば、軽油用給油ノズルの進入を許さないようにすることも容易である。 As described above, the refueling device FS of the second embodiment accurately discriminates the outer diameter of the refueling nozzle by using the separation distance GD2 between the guide member 153 and the guide member 154 as if it were a gauge. be able to. Therefore, if the manufacturing tolerance is included, the gasoline refueling nozzle (outer diameter 20.5 mm) and the light oil refueling nozzle (outer diameter 23.5 mm) with a difference of about 2 mm can be accurately discriminated and compatible with the refueling device FS. It is the same as the first embodiment that it is possible to prevent the entry of the refueling nozzle which is not performed and reduce the risk of accidentally supplying a different type of fuel. In the case of the filler neck 200 described above, even if the nozzle is for AdBlue (outer diameter 19.0 mm), it is discriminated as a nozzle that does not conform to the nozzle and does not allow entry, which is the same as the small diameter nozzle FNS. .. On the other hand, the refueling device FS is designed for gasoline, and the separation distance of the guide members 153 and 154 is slightly larger than the nozzle diameter for ad blue of 19.0 mm and smaller than the nozzle diameter for gasoline of 20.5 mm, for example, 19. If the diameter is set to .75 mm and the diameters of the first part and the second part are designed accordingly, the gasoline refueling nozzle can enter and the ad blue nozzle cannot enter. It is also easy to do. In this case, if the size of the second portion is set so that the nozzle having an outer diameter of 22 mm or more cannot pass through, it is easy to prevent the light oil refueling nozzle from entering.

Ｃ．他の実施形態:
以上説明したいくつかの実施形態では、案内部材５３，５４や１５３，１５４には、第１案内斜面６２，６４や１６２，１６４と第２案内斜面６１，６３や１６１，１６３を設けたが、第１案内斜面または第２案内斜面の一方のみを設けるものとしてもよい。また、案内部材５３，５４や１５３，１５４の第１案内斜面６２，６４や１６２，１６４、あるいは第２案内斜面６１，６３や１６１，１６３は、平面形状の斜面としたが、曲面形状としてもよい。この場合、外側に凸の曲面としてもよいし、内側に凹の曲面としてもよい。もとより、複数の平面を組み合わせて、第２案内斜面を構成するものとしてもよい。本実施例では、左右一対の案内部材を、第１部分と第２部分との接続箇所に設けたが、これに加えて、第２部分の外縁に更に案内部材を増設してもよい。また左右の一対の案内部材の第２案内斜面は、鏡像関係としたが、大径ノズルＦＮＬを第２部分に導くことができれば、斜面の方向や角度が左右の案内部材で異なっていてもよい。 C. Other embodiments:
In some of the embodiments described above, the guide members 53, 54, 153, and 154 are provided with the first guide slopes 62, 64, 162, 164 and the second guide slopes 61, 63, 161 and 163. Only one of the first guide slope and the second guide slope may be provided. Further, although the first guide slopes 62, 64 and 162, 164 of the guide members 53, 54 and 153 and 154, or the second guide slopes 61, 63 and 161 and 163 are planar slopes, they can also be curved surfaces. Good. In this case, it may be a curved surface that is convex outward or a curved surface that is concave inward. Of course, a plurality of planes may be combined to form the second guide slope. In this embodiment, a pair of left and right guide members are provided at the connection points between the first portion and the second portion, but in addition to this, a guide member may be further added to the outer edge of the second portion. Further, the second guide slopes of the pair of left and right guide members are in a mirror image relationship, but the direction and angle of the slopes may be different between the left and right guide members as long as the large diameter nozzle FNL can be guided to the second part. ..

上記実施形態では、案内部材５３，５４や１５３，１５３の下半分は、二つの平面、例えば第２拡張下面６６と第１拡張下面６７あるいは第２拡張下面１６６と第１拡張下面１６７から構成したが、第１拡張下面６７や第１拡張下面１６７を備えない構成としてもよい。また、案内部材５３，５４や１５３，１５４の下半分は、下方に尖った円錐または円錐台形状としてもよい。あるいは、段差をもって、外方に後退する形状としてもよい。もとより、傾斜や段差によって後退する形状に限る必要はなく、開口部の内周縁から外方に向かう所定の範囲に、空間が形成される形状とされていればよく、この結果、開口部を透過した小径ノズルＦＮＳの先端が、案内部材５３，５４にもはや接し得ない形状となっていれば良い。 In the above embodiment, the lower halves of the guide members 53, 54 and 153, 153 are composed of two planes, for example, a second extended lower surface 66 and a first extended lower surface 67 or a second extended lower surface 166 and a first extended lower surface 167. However, the configuration may not include the first extended lower surface 67 and the first extended lower surface 167. Further, the lower halves of the guide members 53, 54 and 153, 154 may have a downwardly pointed cone or a truncated cone shape. Alternatively, it may have a shape that recedes outward with a step. Of course, it is not necessary to limit the shape to a shape that recedes due to an inclination or a step, and it is sufficient that the shape is such that a space is formed in a predetermined range from the inner peripheral edge of the opening to the outside, and as a result, the opening is transmitted. It suffices if the tip of the small-diameter nozzle FNS is shaped so that it can no longer contact the guide members 53 and 54.

上記実施形態では、弁別部５０，１５０は樹脂により形成したが、給油装置ＦＳに適合しない給油ノズルが挿入された場合に、その進入を止める突当部５７，１５７には、挿入される給油ノズルの先端が直接ぶつかるので、突当部５７，１５７を含む移動部材５２や錐形ガード１５１を、樹脂より強い材質、例えば金属などで形成してもよい。あるいは、突当部５７，１５７のみを金属とし、樹脂製の移動部材５２や錐形ガード１５１にインサート成形するようにしてもよい。 In the above embodiment, the discrimination portions 50 and 150 are made of resin, but when a refueling nozzle that does not conform to the refueling device FS is inserted, the refueling nozzles that are inserted into the abutting portions 57 and 157 that stop the entry are inserted. The moving member 52 including the abutting portions 57 and 157 and the conical guard 151 may be made of a material stronger than the resin, for example, metal, because the tips of the heads of the two collide directly with each other. Alternatively, only the abutting portions 57 and 157 may be made of metal, and insert molding may be performed on the resin moving member 52 or the conical guard 151.

第１実施形態において、移動部材５２は樹脂製のバネ部材４１で移動可能に錐形ガード５１に取付けたが、板ばねなどを用いてもよい。あるいは、移動部材５２をその後方から、移動フランジ部５５を固定フランジ部５６当接する方向に付勢するよう、スプリングを設けてもよい。この場合、スプリングに代えて、弾性体などを用いることも可能である。 In the first embodiment, the moving member 52 is movably attached to the conical guard 51 by the resin spring member 41, but a leaf spring or the like may be used. Alternatively, a spring may be provided so as to urge the moving member 52 from behind the moving flange portion 55 in the direction in which the moving flange portion 55 abuts on the fixed flange portion 56. In this case, an elastic body or the like can be used instead of the spring.

第２実施形態において、起動部材１１０は、略直方体形状としたが、形状は問わない。錐形ガード１５１が下方に向かうほど開口部が狭くなることに合わせて、先端ほど細くなる形状としてもよい。また、起動部材１１０は必ずしも回転しなくてもよい。例えば１１０の先端に、錐形ガード１５１の傾斜部と同じ程度の傾斜を形成し、大径ノズルＦＮＬの先端が起動部材１１０の先端に当たったとき、起動部材１１０が、錐形ガード１５１に対して図２２に示した矢印ＤＲ方向に移動するようにしてもよい。このときの起動部材の移動に要する力Ｆ１を、起動部材１１０が取付けられた錐形ガード１５１がＤＲ方向に移動するのに必要な力Ｆ２より大きくしておけば、第２実施形態と同様の作用効果を奏することは容易である。 In the second embodiment, the starting member 110 has a substantially rectangular parallelepiped shape, but the shape does not matter. The shape may be such that the tip of the conical guard 151 becomes narrower as the opening becomes narrower toward the lower side. Further, the starting member 110 does not necessarily have to rotate. For example, when the tip of the 110 is formed with an inclination similar to that of the inclined portion of the cone guard 151, and the tip of the large-diameter nozzle FNL hits the tip of the activation member 110, the activation member 110 with respect to the cone guard 151. It may be moved in the direction of the arrow DR shown in FIG. If the force F1 required for the movement of the starting member at this time is made larger than the force F2 required for the cone-shaped guard 151 to which the starting member 110 is attached to move in the DR direction, the same as in the second embodiment. It is easy to exert an action effect.

第１実施形態の錐形ガード５１や移動部材５２、あるいは第２実施形態の錐形ガード１５１は、燃料通路９０，１９０側に行くほど窄まる、いわゆる漏斗（ファンネル）形状としたが、給油口側の第１の位置と第１の位置より燃料タンク側の第２の位置とでは、第２の位置の方が内径が狭くなる形状であればよく、螺旋形状であってもよい。あるいはそれぞれ傾斜した複数の段差を組み合わせた形状であってもよい。 The conical guard 51 and the moving member 52 of the first embodiment, or the conical guard 151 of the second embodiment have a so-called funnel shape that narrows toward the fuel passages 90 and 190, but the fuel filler port. The inner diameter of the second position on the fuel tank side may be narrower than that of the first position on the side and the second position on the fuel tank side, and may be a spiral shape. Alternatively, the shape may be a combination of a plurality of inclined steps.

上記実施形態では、給油装置ＦＳは、いわゆるキャップレスの構成を備え、給油時以外では給油口２２，１２２を閉鎖するフラップと開閉部材７０，１７０とを兼用している。開閉部材７０，１７０は、キャップレス給油装置ＦＳのためのフラップとは別に独立に設けてもよい。あるいは、第２開閉機構３０，１３０に設けるものとしてもよい。 In the above embodiment, the refueling device FS has a so-called capless configuration, and also serves as a flap for closing the refueling ports 22 and 122 and opening / closing members 70 and 170 except when refueling. The opening / closing members 70 and 170 may be provided independently of the flap for the capless refueling device FS. Alternatively, it may be provided in the second opening / closing mechanisms 30 and 130.

本開示は、上述の実施形態に限られるものではなく、その趣旨を逸脱しない範囲において種々の構成で実現することができる。例えば、発明の概要の欄に記載した各形態中の技術的特徴に対応する実施形態中の技術的特徴は、上述の課題の一部又は全部を解決するために、あるいは、上述の効果の一部又は全部を達成するために、適宜、差し替えや、組み合わせを行うことが可能である。また、その技術的特徴が本明細書中に必須なものとして説明されていなければ、適宜、削除することが可能である。 The present disclosure is not limited to the above-described embodiment, and can be realized by various configurations within a range not deviating from the gist thereof. For example, the technical features in the embodiments corresponding to the technical features in each form described in the column of the outline of the invention may be used to solve some or all of the above-mentioned problems, or one of the above-mentioned effects. It is possible to replace or combine as appropriate to achieve part or all. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

２０…燃料通路形成部、２２…給油口、２３…返し部、２４…カバー部材、２６…燃料蒸気ポート、２７…支持部材、３０…第２開閉機構、３１…第２開閉弁、３２…回転軸、３３…シール部材、４０…第１開閉機構、４１，４３…バネ部材、４４…支柱部材、４６…端部、５０…弁別部、５１…錐形ガード、５２…移動部材、５３，５４…案内部材、５５…移動フランジ部、５６…固定フランジ部、５７…突当部、５８…傾斜部、５９…上縁部、６１，６３…第２案内斜面、６２，６４…第１案内斜面、６６…第２拡張下面、６７…第１拡張下面、６８…空間部、７０…開閉部材、７１…第１開閉弁、７３…保持軸、７５…スプリング、９０…燃料通路、１００…フィラーネック、１１０…起動部材、１１１…回転軸、１１２…スプリング、１２０…燃料通路形成部、１２２…給油口、１３０…第２開閉機構、１３１…第２開閉弁、１３２…回転軸、１４０…第１開閉機構、１４３…係合部、１４５…保持部材、１４５ｂ，１４５ｆ…スライド部材、１４６，１４７…支持柱、１５０…弁別部、１５１…錐形ガード、１５３，１５４…案内部材、１５７…突当部、１６１，１６３…第２案内斜面、１６２，１６４…第１案内斜面、１６６…第２拡張下面、１６７…第１拡張下面、１７０…開閉部材、１７１…弁体、１７３…保持軸、１７５…スプリング、１９０…燃料通路、２００…フィラーネック 20 ... Fuel passage forming part, 22 ... Refueling port, 23 ... Return part, 24 ... Cover member, 26 ... Fuel steam port, 27 ... Support member, 30 ... Second opening / closing mechanism, 31 ... Second opening / closing valve, 32 ... Rotation Shaft, 33 ... Seal member, 40 ... First opening / closing mechanism, 41, 43 ... Spring member, 44 ... Strut member, 46 ... End, 50 ... Discrimination part, 51 ... Conical guard, 52 ... Moving member, 53, 54 ... Guide member, 55 ... Moving flange part, 56 ... Fixed flange part, 57 ... Abutment part, 58 ... Inclined part, 59 ... Upper edge part, 61, 63 ... Second guide slope, 62, 64 ... First guide slope , 66 ... 2nd expansion lower surface, 67 ... 1st expansion lower surface, 68 ... space, 70 ... opening / closing member, 71 ... 1st on / off valve, 73 ... holding shaft, 75 ... spring, 90 ... fuel passage, 100 ... filler neck , 110 ... Starting member, 111 ... Rotating shaft, 112 ... Spring, 120 ... Fuel passage forming part, 122 ... Refueling port, 130 ... Second opening / closing mechanism, 131 ... Second opening / closing valve, 132 ... Rotating shaft, 140 ... First Opening / closing mechanism, 143 ... engaging part, 145 ... holding member, 145b, 145f ... sliding member, 146,147 ... support column, 150 ... discrimination part, 151 ... cone-shaped guard, 153,154 ... guide member, 157 ... bump Parts, 161, 163 ... 2nd guide slope, 162, 164 ... 1st guide slope, 166 ... 2nd expansion lower surface, 167 ... 1st expansion lower surface, 170 ... Opening / closing member, 171 ... Valve body, 173 ... Holding shaft, 175 ... spring, 190 ... fuel passage, 200 ... filler neck

Claims (8)

燃料の給油を行なう際に給油ノズルを受け入れる給油装置であって、
給油ノズルを受け入れる給油口を備え、前記給油口から燃料タンクに至る燃料通路の一部を形成する給油口形成部と、
前記給油口から挿入される前記給油ノズルの到達範囲に設けられ、当該給油装置に適合する給油ノズルよりも外径の小さな小径ノズルの外径に対応した開口である第１部分と、当該給油装置に適合する大径ノズルの外径に対応した形状の開口である第２部分とからなる一続きの開口部を構成する弁別部と、
前記弁別部の前記開口部よりも前記燃料タンク側に設けられ、前記第１部分に導かれた前記小径ノズルの先端が突き当たる突当部材と、
前記弁別部よりも前記燃料タンク側に設けられ、前記燃料タンクの側から閉方向に付勢され、前記開口部を通過した前記大径ノズルにより開状態とされる開閉部材と
を備え、
前記弁別部は、前記第２部分に前記小径ノズルが挿入された場合に、前記挿入された前記小径ノズルを前記第１部分に導く作動部材を備える、給油装置。 A refueling device that accepts refueling nozzles when refueling.
A fuel filler port forming portion having a fuel filler port for receiving the fuel filler nozzle and forming a part of the fuel passage from the fuel filler port to the fuel tank, and a fuel filler port forming portion.
The first portion, which is provided within the reach of the refueling nozzle inserted from the refueling port and is an opening corresponding to the outer diameter of a small diameter nozzle having an outer diameter smaller than that of the refueling nozzle suitable for the refueling device, and the refueling device. A discriminant part that constitutes a continuous opening consisting of a second part that is an opening having a shape corresponding to the outer diameter of a large-diameter nozzle suitable for
An abutting member provided on the fuel tank side of the discrimination portion with respect to the opening and with which the tip of the small-diameter nozzle guided to the first portion abuts.
It is provided with an opening / closing member provided on the fuel tank side of the discrimination portion, urged in the closing direction from the fuel tank side, and opened by the large-diameter nozzle that has passed through the opening.
The discrimination portion is a refueling device including an operating member that guides the inserted small-diameter nozzle to the first portion when the small-diameter nozzle is inserted into the second portion. 前記作動部材は、前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲む、請求項１に記載の給油装置。 The opening of the operating member has a shape in which the inner diameter is narrower in the second position at the first position on the fuel filler port side and the second position on the fuel tank side than the first position. The refueling device according to claim 1, which surrounds the fuel tank. 前記弁別部は、前記開口部の前記第２部分は、前記大径ノズルの外形より小さく、かつ前記第２部分と前記第１部分との境界が、前記大径ノズルの外径より小さく前記小径ノズルの外径より大きな内寸箇所であり、
前記作動部材は、前記第２部分への前記小径ノズルの挿入によっては移動せず、前記大径ノズルの挿入によって移動する移動部材を備え、
前記移動部材は、前記移動によって前記内寸箇所を前記第１部分方向に移動し、前記第２部分を、前記大径ノズルの外形を越えて拡張する、
請求項１または請求項２に記載の給油装置。 In the discrimination portion, the second portion of the opening is smaller than the outer diameter of the large diameter nozzle, and the boundary between the second portion and the first portion is smaller than the outer diameter of the large diameter nozzle and has the small diameter. It is an inner dimension larger than the outer diameter of the nozzle.
The operating member includes a moving member that does not move by inserting the small diameter nozzle into the second portion but moves by inserting the large diameter nozzle.
The moving member moves the inner dimension portion toward the first portion by the movement, and extends the second portion beyond the outer shape of the large-diameter nozzle.
The refueling device according to claim 1 or 2. 前記移動部材は、前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲む開口形成部材である、請求項３に記載の給油装置。 The moving member has an opening having a shape in which the inner diameter of the moving member is narrower in the second position than in the first position on the fuel filler port side and the second position on the fuel tank side than in the first position. The refueling device according to claim 3, which is an opening forming member surrounding the above. 前記弁別部の前記第１部分と前記第２部分とが接続する位置に、前記給油口側に所定高さに形成された案内部材を備え、
前記案内部材に当接した前記大径ノズルの挿入によって、前記移動部材の前記移動を実現する
請求項３または請求項４に記載の給油装置。 A guide member formed at a predetermined height is provided on the fuel filler port side at a position where the first portion and the second portion of the discrimination portion are connected.
The refueling device according to claim 3 or 4, wherein the movement of the moving member is realized by inserting the large-diameter nozzle in contact with the guide member. 前記作動部材は、前記給油口から挿入された前記給油ノズルの先端が当接する起動部材を備え、
前記起動部材は、前記第２部分が、前記大径ノズルの外径より小さな内寸箇所を有するものとなる位置に配置され、
前記起動部材に前記小径ノズルの先端が当接した場合は、前記突当部材を前記起動部材側に移動させ、前記起動部材に前記大径ノズルが当接した場合は、前記起動部材が移動することによって前記第２部分の前記内寸箇所を前記大径ノズルの外径を越えて拡張する、
請求項１または請求項２に記載の給油装置。 The operating member includes a starting member with which the tip of the refueling nozzle inserted from the refueling port abuts.
The starting member is arranged at a position where the second portion has an inner diameter portion smaller than the outer diameter of the large diameter nozzle.
When the tip of the small-diameter nozzle comes into contact with the starting member, the abutting member is moved toward the starting member, and when the large-diameter nozzle comes into contact with the starting member, the starting member moves. Thereby, the inner dimension portion of the second portion is expanded beyond the outer diameter of the large diameter nozzle.
The refueling device according to claim 1 or 2. 前記弁別部の前記第１部分と前記第２部分とが接続する位置に、前記給油口側に所定高さに形成された案内部材を備え、
前記給油口から挿入された前記大径ノズルの先端の一部が前記案内部材に当接することで、前記起動部材の移動を実現する、
請求項６に記載の給油装置。 A guide member formed at a predetermined height is provided on the fuel filler port side at a position where the first portion and the second portion of the discrimination portion are connected.
A part of the tip of the large-diameter nozzle inserted from the fuel filler port comes into contact with the guide member, thereby realizing the movement of the activation member.
The refueling device according to claim 6. 前記案内部材は、前記小径ノズルが前記起動部材に当接した状態では、前記小径ノズルとは離間しており、
前記作動部材は、
前記給油口側の第１の位置と前記第１の位置より前記燃料タンク側の第２の位置とでは、前記第２の位置の方が内径が狭くなる形状で前記開口部を取り囲み、
前記小径ノズルが前記起動部材に当接して挿入される際、前記小径ノズルによる前記起動部材の前記移動に要する力よりも小さな力で前記突当部材を移動する、
請求項７に記載の給油装置。 The guide member is separated from the small diameter nozzle when the small diameter nozzle is in contact with the starting member.
The operating member
At the first position on the fuel filler port side and the second position on the fuel tank side than the first position, the second position surrounds the opening in a shape in which the inner diameter is narrower.
When the small-diameter nozzle is inserted in contact with the starting member, the abutting member is moved with a force smaller than the force required for the moving of the starting member by the small-diameter nozzle.
The refueling device according to claim 7.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10051212A1 (en) * 2000-10-16 2002-07-11 Volkswagen Ag Tank filler socket for motor vehicles has blocking device to prevent filling with unsuitable fuels and inner diameter to fit correctly sized pump nozzle only
US20080092986A1 (en) * 2004-07-16 2008-04-24 Markus Buchgraber Filler Tube For The Fuel Tank Of A Motor Vehicle With Selective Opening
JP2010195344A (en) * 2009-02-27 2010-09-09 Toyoda Gosei Co Ltd Opening/closing device of fuel tank
WO2011062193A1 (en) * 2009-11-18 2011-05-26 株式会社ニフコ Device for preventing fueling error
JP2015063294A (en) * 2013-08-30 2015-04-09 豊田合成株式会社 Opening/closing device of fuel tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10051212A1 (en) * 2000-10-16 2002-07-11 Volkswagen Ag Tank filler socket for motor vehicles has blocking device to prevent filling with unsuitable fuels and inner diameter to fit correctly sized pump nozzle only
US20080092986A1 (en) * 2004-07-16 2008-04-24 Markus Buchgraber Filler Tube For The Fuel Tank Of A Motor Vehicle With Selective Opening
JP2010195344A (en) * 2009-02-27 2010-09-09 Toyoda Gosei Co Ltd Opening/closing device of fuel tank
WO2011062193A1 (en) * 2009-11-18 2011-05-26 株式会社ニフコ Device for preventing fueling error
JP2015063294A (en) * 2013-08-30 2015-04-09 豊田合成株式会社 Opening/closing device of fuel tank

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