JP2008049952A - Opening and closing device for tank - Google Patents

Opening and closing device for tank Download PDF

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Publication number
JP2008049952A
JP2008049952A JP2006230534A JP2006230534A JP2008049952A JP 2008049952 A JP2008049952 A JP 2008049952A JP 2006230534 A JP2006230534 A JP 2006230534A JP 2006230534 A JP2006230534 A JP 2006230534A JP 2008049952 A JP2008049952 A JP 2008049952A
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Prior art keywords
opening
nozzle
tank
closing
fuel
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JP4692441B2 (en
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Hiroyuki Hagano
博之 波賀野
Masayuki Nakagawa
正幸 中川
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • B60K15/04Tank inlets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • B60K15/04Tank inlets
    • B60K15/0406Filler caps for fuel tanks
    • B60K2015/0419Self-sealing closure caps, e.g. that don't have to be removed manually
    • B60K2015/0429Self-sealing closure caps, e.g. that don't have to be removed manually actuated by the nozzle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • B60K15/04Tank inlets
    • B60K2015/0458Details of the tank inlet
    • B60K2015/0483Means to inhibit the introduction of too small or too big filler nozzles

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock mechanism 40 of simple structure capable of surely operating an opening/closing member 31 to open and close depending on the kind of a fuel supply nozzle FZ in regard to an opening/closing device 10 for a tank. <P>SOLUTION: The lock mechanism 40 is assembled in an opening/closing member 31 of a shutter mechanism 30 pivotally supported by a tank opening forming member 11. The lock mechanism 40 has an inside diameter positioning part 42a of a nozzle guide part 42, a lock releasing part 44c, and a lock member 44. The inside diameter positioning part 42a having an outside diameter D1 slightly smaller than the inside diameter Da1 of the fuel supply nozzle FZ positions the fuel supply nozzle FZ by projecting into a nozzle opening FZa of the fuel supply nozzle FZ. The lock releasing part 44c is pushed by the fuel supply nozzle FZ positioned by the inside diameter positioning part 42a, and transfers the lock member 44 from a lock position to a non-lock position in conjunction with the pushing operation of the fuel nozzle FZ. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、燃料通路を通じて、燃料タンクへ給油するためのタンク用開閉装置に関し、詳しくは燃料通路を開閉する機構に関する。   The present invention relates to a tank opening and closing device for supplying fuel to a fuel tank through a fuel passage, and more particularly to a mechanism for opening and closing the fuel passage.

自動車に給油するための給油ノズルは、一般に、ガソリンと軽油とを区別するためにガソリン用のノズル径が20mm、軽油用のノズル径が25mmと違っている。こうしたノズル径を異にした油種の違いに対応するための給油装置として、特許文献1の技術が知られている。すなわち、給油装置は、給油口を形成するタンク開口形成部材と、タンク開口形成部材の内壁に一端部で回動可能に支持されたフラップバルブと、給油ノズルで押されたときにフラップバルブを開閉可能にするラッチ機構とを備えている。ラッチ機構は、軽油用のノズルには係合するが、それより小さいガソリン用の給油ノズルには係合しないように配置されている。そして、軽油用の給油ノズルが挿入されたときにラッチ機構に係合し、ラッチ機構とフラップバルブとの係合を解除し、さらに給油ノズルを挿入することでフラップバルブを開き、給油可能な状態となる。   In general, an oil supply nozzle for supplying fuel to an automobile is different from a gasoline nozzle diameter of 20 mm and a light oil nozzle diameter of 25 mm in order to distinguish between gasoline and light oil. As a fueling device for dealing with such a difference in oil types with different nozzle diameters, the technique of Patent Document 1 is known. That is, the fuel filler includes a tank opening forming member that forms a fuel filler opening, a flap valve that is rotatably supported at one end on the inner wall of the tank opening forming member, and opens and closes the flap valve when pushed by the fuel nozzle. And a latch mechanism that enables it. The latch mechanism is arranged so as to engage with the nozzle for light oil but not to engage with a smaller fuel nozzle for gasoline. And when the oil nozzle for light oil is inserted, it engages with the latch mechanism, the engagement between the latch mechanism and the flap valve is released, and further, the flap valve is opened by inserting the oil nozzle, and the oil can be supplied It becomes.

しかし、この従来の技術によると、軽油用の給油ノズルの先端外周部がラッチ機構に直接当たってラッチ機構を起動するが、軽油用の給油ノズルより細いガソリン用の給油ノズルを誤って挿入し該給油ノズルが僅かに振れた場合にもラッチ機構に当たってしまい、ラッチ機構の誤動作に至りやすいという問題があった。   However, according to this conventional technology, the outer peripheral portion of the light oil supply nozzle directly hits the latch mechanism to start the latch mechanism, but the gasoline oil nozzle that is thinner than the light oil supply nozzle is accidentally inserted and Even when the oil supply nozzle slightly swings, it hits the latch mechanism, and there is a problem that the latch mechanism is likely to malfunction.

また、他の従来の技術として、開閉部材を開くためにリンク機構やギヤ機構などを用いる構成も知られている(特許文献2)。しかし、この技術によると、リンク機構やギヤ機構が複雑になるという問題があった。   As another conventional technique, a configuration using a link mechanism, a gear mechanism, or the like to open an opening / closing member is also known (Patent Document 2). However, this technique has a problem that the link mechanism and the gear mechanism become complicated.

米国特許第6,968,874号US Pat. No. 6,968,874 米国特許出願公開第2006/32552号US Patent Application Publication No. 2006/32552

本発明は、上記従来の技術の問題を解決することを踏まえ、異なる油種の給油を防止するとともに、簡単な構成のタンク用開閉装置を提供することを目的とする。   An object of the present invention is to provide a tank opening and closing device having a simple configuration while preventing the supply of different oil types, in view of solving the above-described problems of the conventional technology.

上記課題を解決するためになされた本発明は、
燃料タンクへ燃料を供給する注入口を開閉するタンク用開閉装置において、
給油ノズルを挿入するための開口部と、該開口部を通じて給油ノズルから供給される燃料を燃料タンクへ導く燃料通路とを有するタンク開口形成部材と、
上記タンク開口形成部材に取り付けられ上記開口部を開閉する開閉部材を有するシャッタ機構と、
上記開口部に臨んで配置され、上記開閉部材が開口部を閉じている状態に上記開閉部材をロックするロック位置と上記開閉部材が開口部を開くことを許容する非ロック位置とを切り換えるロック機構と、
を備え、
上記ロック機構は、
給油ノズルの先端の内径よりも僅かに小さい外径を有し、給油ノズルのノズル口に突入することで、給油ノズルを位置決めする内径位置決め部を有するノズルガイド部と、
上記内径位置決め部の外周側に配置され、該内径位置決め部で位置決めされた上記給油ノズルの先端で押圧されるロック解除起動部と、
上記ロック解除起動部に連動して上記ロック位置から上記非ロック位置に移行させるロック部材と、
を備えていることを特徴とする。
The present invention made to solve the above problems
In a tank opening and closing device that opens and closes an inlet for supplying fuel to a fuel tank,
A tank opening forming member having an opening for inserting the fuel filler nozzle, and a fuel passage for guiding fuel supplied from the fuel nozzle through the opening to the fuel tank;
A shutter mechanism attached to the tank opening forming member and having an opening and closing member for opening and closing the opening;
A locking mechanism that is arranged facing the opening and switches between a locking position that locks the opening and closing member in a state where the opening and closing member closes the opening and a non-locking position that allows the opening and closing member to open the opening. When,
With
The locking mechanism is
A nozzle guide part having an outer diameter slightly smaller than the inner diameter of the tip of the oiling nozzle, and having an inner diameter positioning part for positioning the oiling nozzle by entering the nozzle port of the oiling nozzle;
An unlocking activation part that is disposed on the outer peripheral side of the inner diameter positioning part and is pressed by the tip of the oil supply nozzle positioned by the inner diameter positioning part;
A locking member that moves from the locked position to the unlocked position in conjunction with the unlocking activation unit;
It is characterized by having.

本発明にかかるタンク用開閉装置では、給油するために、給油ノズルをノズルガイド部に向けて移動すると、ノズルガイド部の内径位置決め部が給油ノズルのノズル口に挿入される。内径位置決め部は、給油ノズルを位置決めするとともに、給油ノズルをロック解除起動部へ導く。給油ノズルの先端がロック解除起動部を押すと、ロック部材が連動してロック位置から非ロック位置へ移行することにより、開閉部材が開口部を開くことができる。すなわち、内径位置決め部は、給油ノズルのノズル口に入り込むときには、該内径位置決め部の外径より僅かに大きい内径を有する給油ノズルしか位置決めをせず、ロック解除起動部を押圧するように導かないから、所定の給油ノズル以外によってロック解除起動部の押圧動作をさせない。したがって、給油ノズルの内径の大きさによって、燃料の種類が異なる場合に、給油ノズルを誤って挿入しても、開閉部材が開き動作をしないから、間違った種類の燃料を供給することもない。   In the tank opening and closing device according to the present invention, when the oil supply nozzle is moved toward the nozzle guide portion in order to supply oil, the inner diameter positioning portion of the nozzle guide portion is inserted into the nozzle port of the oil supply nozzle. The inner diameter positioning part positions the fueling nozzle and guides the fueling nozzle to the lock release starting part. When the tip of the oil supply nozzle presses the unlocking activation part, the locking member interlocks and shifts from the locked position to the unlocked position, so that the opening / closing member can open the opening. That is, when the inner diameter positioning part enters the nozzle port of the oil supply nozzle, only the oil supply nozzle having an inner diameter slightly larger than the outer diameter of the inner diameter positioning part is positioned, and is guided to press the unlocking activation part. The pressing operation of the unlocking activation part is not performed by means other than the predetermined fueling nozzle. Therefore, when the fuel type differs depending on the inner diameter of the fueling nozzle, even if the fueling nozzle is mistakenly inserted, the opening / closing member does not open, so that the wrong type of fuel is not supplied.

また、本発明の好適な態様として、上記ノズルガイド部は、上記内径位置決め部の外周側に、給油ノズルのノズル口の外周部を位置決めする外径位置決め部と、内径位置決め部と外径位置決め部との間に形成され上記ロック解除起動部を配置した挿入溝とを備えている構成をとることができる。この構成によると、ノズルガイド部の外径位置決め部が給油ノズルの外周部も位置決めするから、一層、給油ノズルの種類の選択性を高めることができる。   Further, as a preferred aspect of the present invention, the nozzle guide portion includes an outer diameter positioning portion that positions an outer peripheral portion of a nozzle port of the oil supply nozzle on an outer peripheral side of the inner diameter positioning portion, an inner diameter positioning portion, and an outer diameter positioning portion. And an insertion groove in which the unlocking activation part is arranged can be taken. According to this configuration, since the outer diameter positioning portion of the nozzle guide portion also positions the outer peripheral portion of the fuel nozzle, the selectivity of the type of the fuel nozzle can be further enhanced.

さらに、上記ロック解除起動部の好適な態様として、内径位置決め部の中心を囲むように同心円上に複数個配置されている構成をとることができる。この構成により、給油ノズルの先端がロック解除起動部に片当たりすることなく、均等な力でロック部材を移動させることができる。   Furthermore, as a preferable aspect of the unlocking activation portion, a configuration in which a plurality of concentric circles are arranged so as to surround the center of the inner diameter positioning portion can be employed. With this configuration, the lock member can be moved with an equal force without the tip of the fuel supply nozzle hitting the unlocking activation portion.

また、本発明の好適な態様として、上記開閉部材は、上記ロック解除起動部を上記給油ノズルの挿入方向に移動可能に支持するとともに、該挿入方向に移動したロック解除起動部に連動して上記ロック部材を径方向にスライド可能に支持する収納室を備えている構成をとることができる。この構成により開閉部材にロック機構を一体的に組み付けることができ、構成をコンパクトにすることができる。   Further, as a preferred aspect of the present invention, the opening / closing member supports the unlocking activation part so as to be movable in the insertion direction of the fueling nozzle, and interlocks with the unlocking activation part moved in the insertion direction. A configuration including a storage chamber that supports the lock member so as to be slidable in the radial direction can be employed. With this configuration, the lock mechanism can be assembled integrally with the opening / closing member, and the configuration can be made compact.

さらに、上記ロック機構の好適な構成として、上記タンク開口形成部材に設けられ上記ロック部材と係合することで上記ロック部材をロック位置に設定するストッパを備えている構成をとることにより、ロック機構の構成を簡単にできる。   Furthermore, as a preferable configuration of the lock mechanism, a lock mechanism is provided by including a stopper provided on the tank opening forming member and engaging the lock member to set the lock member at a lock position. The configuration can be simplified.

また、上記シャッタ機構は、上記開閉部材の一端がタンク開口形成部材に回動可能に支持された回動支持部と、開閉部材に閉弁方向に付勢するスプリングとを有するフラップバルブ機構である構成をとることができる。この構成により、シャッタ機構をロック機構と一体に簡単に組み付けることができる。   The shutter mechanism is a flap valve mechanism having a rotation support portion in which one end of the opening / closing member is rotatably supported by the tank opening forming member, and a spring biasing the opening / closing member in the valve closing direction. Configuration can be taken. With this configuration, the shutter mechanism can be easily assembled integrally with the lock mechanism.

以上説明した本発明の構成・作用を一層明らかにするために、以下本発明の好適な実施例について説明する。   In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the present invention will be described below.

A.第1実施例
(1) タンク用開閉装置の概略構成
図1は本発明の第1実施例に係るディーゼルエンジンを搭載した自動車の後部を示し、給油蓋を開いた状態を示す斜視図である。自動車の車体の後部には、燃料(軽油)を給油するための給油蓋FLが開閉可能に支持されている。給油蓋FLは、車体の外板に倣った蓋本体FLaがヒンジFLbを介して車体の外板に開閉可能に支持されている。給油蓋FLを開いたスペースは、給油室FRになっており、この給油室FR内に、基板BPに支持されたタンク用開閉装置10が配置されている。タンク用開閉装置10は、燃料キャップを用いないで、燃料タンクに燃料を供給するための機構であり、給油蓋FLを開いた後に、給油ノズルからの外力で燃料通路を開閉することで、給油ノズルから燃料タンクへ燃料を供給することができる機構である。以下、燃料タンクの給油装置の詳細な構成について説明する。
A. First Embodiment (1) Schematic Configuration of Tank Opening / Closing Device FIG. 1 is a perspective view showing a rear portion of an automobile equipped with a diesel engine according to a first embodiment of the present invention and a state in which a fueling lid is opened. An oil supply lid FL for supplying fuel (light oil) is supported at the rear part of the vehicle body so as to be openable and closable. The fuel filler lid FL is supported by a lid body FLa following the outer plate of the vehicle body so as to be opened and closed on the outer plate of the vehicle body via a hinge FLb. The space where the fueling lid FL is opened is a fueling chamber FR, and the tank opening / closing device 10 supported by the substrate BP is disposed in the fueling chamber FR. The tank opening and closing device 10 is a mechanism for supplying fuel to the fuel tank without using a fuel cap. After opening the fueling lid FL, the tank opening and closing device 10 opens and closes the fuel passage by external force from the fueling nozzle. This is a mechanism that can supply fuel from the nozzle to the fuel tank. Hereinafter, a detailed configuration of the fuel tank fueling device will be described.

(2) 各部の構成および動作
図2はタンク用開閉装置10の平面図、図3は図2の図3−3線に沿った断面図である。図3において、タンク用開閉装置10は、燃料タンクに接続される燃料通路11Pを有するタンク開口形成部材11と、燃料通路11Pを開閉する開閉機構20とを備えている。
(2) Configuration and Operation of Each Part FIG. 2 is a plan view of the tank opening / closing device 10, and FIG. 3 is a cross-sectional view taken along the line 3-3 in FIG. 3, the tank opening / closing device 10 includes a tank opening forming member 11 having a fuel passage 11P connected to a fuel tank, and an opening / closing mechanism 20 for opening / closing the fuel passage 11P.

(2)−1 タンク開口形成部材11
タンク開口形成部材11は、燃料通路11Pを有する管体であり、燃料タンクに接続される接続管12と、接続管12の上端部に接続されるパイプ本体14と、パイプ本体14の上部に固定された開口形成部材16とを備えている。接続管12は、パイプ本体14の燃料タンク側を徐々に縮径した縮径部12aと、縮径部12aに接続された直管部12bとを備え、これらを一体に形成している。
(2) -1 Tank opening forming member 11
The tank opening forming member 11 is a pipe body having a fuel passage 11P, and is fixed to a connection pipe 12 connected to the fuel tank, a pipe body 14 connected to the upper end portion of the connection pipe 12, and an upper portion of the pipe body 14. The opening forming member 16 is provided. The connecting pipe 12 includes a reduced diameter portion 12a that gradually reduces the diameter of the fuel tank side of the pipe body 14, and a straight pipe portion 12b that is connected to the reduced diameter portion 12a, and these are integrally formed.

パイプ本体14は、縮径部12aの上部に接続されている。パイプ本体14の上部は、上壁14aが一体に固定されている。上壁14aには、燃料通路11Pの一部を構成する注入口14Pになっている。また、パイプ本体14の内側の燃料通路11P内に支持壁14cが固定されている。支持壁14cには、貫通孔14dが形成されている。   The pipe body 14 is connected to the upper part of the reduced diameter portion 12a. An upper wall 14 a is integrally fixed to the upper portion of the pipe body 14. The upper wall 14a is an inlet 14P that constitutes a part of the fuel passage 11P. A support wall 14 c is fixed in the fuel passage 11 </ b> P inside the pipe body 14. A through hole 14d is formed in the support wall 14c.

開口形成部材16は、パイプ本体14の上部に装着され、円筒状の側壁部16aと、上壁部16bとを備えており、その下部の係合穴16cにパイプ本体14の上部に形成された係合爪14eを係合することによりパイプ本体14に装着されている。開口形成部材16の上壁部16bは、平面部16dと、傾斜面16eから構成されている。傾斜面16eは、中心部が凹み、導入口16fから開口部16gに繋がり、かつ給油ノズルを導くように形成されている。   The opening forming member 16 is mounted on the upper portion of the pipe body 14 and includes a cylindrical side wall portion 16a and an upper wall portion 16b. The opening forming member 16 is formed in the upper portion of the pipe body 14 in the lower engagement hole 16c. It is attached to the pipe body 14 by engaging the engaging claw 14e. The upper wall portion 16b of the opening forming member 16 includes a flat portion 16d and an inclined surface 16e. The inclined surface 16e is formed so that the center portion is recessed, is connected to the opening portion 16g from the introduction port 16f, and guides the fueling nozzle.

(2)−2 開閉機構20
図4はタンク用開閉装置10を分解した斜視図である。開閉機構20は、シャッタ機構30と、ロック機構40と、弁開閉機構50と、リンク機構60とを備えており、給油時に、給油蓋を開き、給油ノズルなどでシャッタ機構30を押し開けると、ロック機構40をロック位置から非ロック位置に移行させて、シャッタ機構30に連動してリンク機構60を介して弁開閉機構50を開き、燃料通路11Pを通じて給油する機構である。
(2) -2 Opening / closing mechanism 20
FIG. 4 is an exploded perspective view of the tank opening / closing device 10. The opening / closing mechanism 20 includes a shutter mechanism 30, a lock mechanism 40, a valve opening / closing mechanism 50, and a link mechanism 60. When refueling, the oil cover is opened and the shutter mechanism 30 is pushed open by a fuel nozzle or the like. In this mechanism, the lock mechanism 40 is shifted from the lock position to the non-lock position, the valve opening / closing mechanism 50 is opened via the link mechanism 60 in conjunction with the shutter mechanism 30, and fuel is supplied through the fuel passage 11P.

(2)−3−1 シャッタ機構30
図3および図4において、シャッタ機構30は、給油ノズルの挿入に連動して開口部16gを開閉するためのフラップバルブ機構であり、開口形成部材16に固定されている。シャッタ機構30は、開閉部材31と、スプリング35とを備えている。開閉部材31は、開口部16gを開閉する円板部32と、円板部32の端部に一体形成された回動支持部33とを備えている。回動支持部33は、開口形成部材16の内壁に平行に形成された支持体17(図4は一方を示す)の軸穴17aに軸34を介して軸支されている。スプリング35は、コイルスプリングであり、回動支持部33と支持体17の係合穴17bとの間に掛け渡されて、開閉部材31を閉じる方向に付勢している。図3に示すように開閉部材31は、上部材31aと、下部材31bとを重ね合わせることで、ロック機構40を収納する収納室31cを形成している。
(2) -3-1 Shutter mechanism 30
3 and 4, the shutter mechanism 30 is a flap valve mechanism for opening and closing the opening 16 g in conjunction with the insertion of the fueling nozzle, and is fixed to the opening forming member 16. The shutter mechanism 30 includes an opening / closing member 31 and a spring 35. The opening / closing member 31 includes a disk part 32 that opens and closes the opening 16 g and a rotation support part 33 that is integrally formed at the end of the disk part 32. The rotation support portion 33 is pivotally supported via a shaft 34 in a shaft hole 17a of a support body 17 (FIG. 4 shows one) formed in parallel to the inner wall of the opening forming member 16. The spring 35 is a coil spring and is stretched between the rotation support portion 33 and the engagement hole 17 b of the support body 17 and biases the opening / closing member 31 in the closing direction. As shown in FIG. 3, the opening / closing member 31 forms a storage chamber 31 c for storing the lock mechanism 40 by overlapping the upper member 31 a and the lower member 31 b.

(2)−3−2 ロック機構40
図5はタンク用開閉装置10の上部を示す斜視図、図6は図5の6−6線に沿った断面図、図7はロック機構を分解した斜視図、図8はロック機構40の非ロック位置を説明する説明図である。ロック機構40は、軽油用の給油ノズルの先端で押されることにより開閉部材31が開口部16gを開くことを許容する機構である。図7に示すようにロック機構40は、開閉部材31の上面に形成されたノズルガイド部42と、開閉部材31の収納室31cに配置されたロック部材44,44およびスプリング46と、開口形成部材16の内壁から突設され下部に傾斜面48aを有するストッパ48とを備えている。
(2) -3-2 Lock mechanism 40
5 is a perspective view showing the upper part of the tank opening and closing device 10, FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 5, FIG. 7 is an exploded perspective view of the lock mechanism, and FIG. It is explanatory drawing explaining a lock position. The lock mechanism 40 is a mechanism that allows the opening / closing member 31 to open the opening 16g by being pushed at the tip of the light oil supply nozzle. As shown in FIG. 7, the lock mechanism 40 includes a nozzle guide portion 42 formed on the upper surface of the opening / closing member 31, lock members 44 and 44 and a spring 46 disposed in the storage chamber 31 c of the opening / closing member 31, and an opening forming member. 16 is provided with a stopper 48 that protrudes from the inner wall 16 and has an inclined surface 48a at the bottom.

ノズルガイド部42は、内径位置決め部42aと、外径位置決め部42bと、挿入溝42cと、内径位置決め部42aの一部を斜面とするガイド面42dとを備えている。内径位置決め部42aは、円形の台座であり、その外周部に挿入溝42cを隔てて外径位置決め部42bにより囲まれている。収納室31cは、上部材31aおよび下部材31bにより形成され、スライド可能にロック部材44を収納するとともにスプリングを収納しており、ロック部材44の一部を出没させるために、上開口31dが挿入溝42cに、下開口31eが開閉部材31の側部に形成されている。   The nozzle guide part 42 includes an inner diameter positioning part 42a, an outer diameter positioning part 42b, an insertion groove 42c, and a guide surface 42d having a part of the inner diameter positioning part 42a as an inclined surface. The inner diameter positioning portion 42a is a circular pedestal, and is surrounded by an outer diameter positioning portion 42b with an insertion groove 42c therebetween at the outer periphery thereof. The storage chamber 31c is formed by an upper member 31a and a lower member 31b. The storage chamber 31c stores the lock member 44 so as to be slidable and stores a spring. The upper opening 31d is inserted to allow a part of the lock member 44 to appear and disappear. A lower opening 31 e is formed in the groove 42 c on the side of the opening / closing member 31.

ロック部材44,44は、収納室31c内に同一形状の2つが対向して配置されており、その間にスプリング46が配置されている。ロック部材44は、細い板状のロック部材本体44aと、ロック部材本体44aの一端部から上方へ突設された起立部44bと、起立部44bの上部に形成されたロック解除起動部44cと、ロック部材本体44aの他端に形成されストッパ48に係脱する係合片44dと、起立部44bの側部に形成されスプリング46の一端を支持するスプリング支持部44eとを備え、これらが一体に形成されている。ロック解除起動部44cは、上開口31dを通じて挿入溝42cに露出しており、軸方向に傾斜した傾斜面44fを備えている。傾斜面44fは、給油ノズルの先端で押されたときにロック部材44を径方向へ移動する力に変換する面である。また、係合片44dの上部にもストッパ48の傾斜面48aと当たる傾斜面44gが形成されている。   Two lock members 44, 44 having the same shape are disposed in the storage chamber 31c so as to face each other, and a spring 46 is disposed therebetween. The lock member 44 includes a thin plate-like lock member main body 44a, an upright portion 44b protruding upward from one end of the lock member main body 44a, an unlocking activation portion 44c formed on the upper portion of the upright portion 44b, An engagement piece 44d formed at the other end of the lock member main body 44a and engaged with and disengaged from the stopper 48, and a spring support portion 44e formed at a side portion of the standing portion 44b and supporting one end of the spring 46, are integrally formed. Is formed. The unlocking activation part 44c is exposed to the insertion groove 42c through the upper opening 31d and includes an inclined surface 44f inclined in the axial direction. The inclined surface 44f is a surface that converts a force that moves the lock member 44 in the radial direction when the inclined surface 44f is pressed at the tip of the fueling nozzle. Further, an inclined surface 44g that contacts the inclined surface 48a of the stopper 48 is also formed on the upper portion of the engagement piece 44d.

図9は給油ノズルとノズルガイド部42との関係を説明する説明図である。ノズルガイド部42は、給油ノズルとの寸法関係において、軽油用の給油ノズルFZ(z)の先端でロック部材44,44のロック解除起動部44cを押せるように形成されている。図9(A)において、ノズルガイド部42の内径位置決め部42aの外径をD1、外径位置決め部42bの内径をD2、挿入溝42cの幅をW1(D2−D1)としている。また、図9(B)および図9(C)に示すように、軽油用の給油ノズルFZ(z)の先端の内径をDz1、外径をDz2、ガソリン用の給油ノズルFZ(g)の内径をDg1、外径をDg2とすると、Dz1>Dg1、Dz2>Dg2であり、つまり軽油用の給油ノズルFZ(z)がガソリン用の給油ノズルFZ(g)より太い。この場合において、図9(B)に示すように、Dz1>D1かつD2>Dz2の関係に設定されているから、つまり軽油用の給油ノズルFZ(z)の内径Dz1が内径位置決め部42aの外径D1より大きく、外径Dz2が外径位置決め部42bの内径D2より小さいから、給油ノズルFZ(z)は、内径位置決め部42aに乗り上げないで、挿入溝42c内に入ってロック解除起動部44cを押すことができる。一方、図9(C)に示すように、Dg1<D1の関係にあるから、つまりガソリン用の給油ノズルFZ(g)の内径Dg1が内径位置決め部42aの外径D1より小さいから、給油ノズルFZ(g)の先端の斜線で示す部分が内径位置決め部42aに乗り上げて、挿入溝42c内に入らず、ロック解除起動部44cを押すことができない。なお、給油ノズルFZの規格は、軽油用の給油ノズルFZ(z)の内径Dz1が20.0〜21.0mm、外径Dz2が25.0〜26.0mmであり、ガソリン用の給油ノズルFZ(g)の内径Dg1が15.0〜17.0mm、その外径Dg2が20.0〜21.0mm、であることから、D1が18〜20mm、D2が26〜28mmに設定することができる。   FIG. 9 is an explanatory diagram for explaining the relationship between the fueling nozzle and the nozzle guide portion 42. The nozzle guide part 42 is formed so that the lock release starting part 44c of the lock members 44, 44 can be pushed at the tip of the light oil supply nozzle FZ (z) in the dimensional relationship with the oil supply nozzle. In FIG. 9A, the outer diameter of the inner diameter positioning part 42a of the nozzle guide part 42 is D1, the inner diameter of the outer diameter positioning part 42b is D2, and the width of the insertion groove 42c is W1 (D2-D1). Further, as shown in FIG. 9B and FIG. 9C, the inner diameter of the tip of the fuel oil nozzle FZ (z) for light oil is Dz1, the outer diameter is Dz2, and the inner diameter of the fuel oil nozzle FZ (g) for gasoline. Is Dg1 and the outer diameter is Dg2, Dz1> Dg1, Dz2> Dg2, that is, the fuel oil nozzle FZ (z) for light oil is thicker than the fuel oil nozzle FZ (g) for gasoline. In this case, as shown in FIG. 9B, the relationship is set such that Dz1> D1 and D2> Dz2, that is, the inner diameter Dz1 of the fuel oil nozzle FZ (z) for light oil is outside the inner diameter positioning portion 42a. Since the outer diameter Dz2 is larger than the diameter D1 and smaller than the inner diameter D2 of the outer diameter positioning portion 42b, the fueling nozzle FZ (z) does not ride on the inner diameter positioning portion 42a but enters the insertion groove 42c and enters the unlocking activation portion 44c. Can be pressed. On the other hand, as shown in FIG. 9C, the relationship Dg1 <D1, that is, the inner diameter Dg1 of the gasoline fuel nozzle FZ (g) is smaller than the outer diameter D1 of the inner diameter positioning portion 42a. The portion indicated by the oblique line at the tip of (g) rides on the inner diameter positioning portion 42a and does not enter the insertion groove 42c, and the lock release starting portion 44c cannot be pushed. The standard of the oil supply nozzle FZ is that the inner diameter Dz1 of the oil supply nozzle FZ (z) for light oil is 20.0 to 21.0 mm, the outer diameter Dz2 is 25.0 to 26.0 mm, and the oil supply nozzle FZ for gasoline Since the inner diameter Dg1 of (g) is 15.0 to 17.0 mm and the outer diameter Dg2 is 20.0 to 21.0 mm, D1 can be set to 18 to 20 mm and D2 can be set to 26 to 28 mm. .

こうしたノズルガイド部42と給油ノズルFZの寸法関係を踏まえて、シャッタ機構30の動作について説明する。図6に示すように給油ノズルFZを開口形成部材16の導入口16fから挿入すると、給油ノズルFZの先端がノズルガイド部42の挿入溝42cに入り込んでロック部材44のロック解除起動部44cの傾斜面44fに当たる。傾斜面44fは、給油ノズルFZによる軸方向の力を径方向への力に変換するから、図8に示すようにロック部材44がスプリング46の付勢力に抗して中心軸へ移動する。これにより、ロック部材44の係合片44dがストッパ48に対して後退して、ストッパ48との係合を解除して、ロック位置から非ロック位置になる。そして、給油ノズルFZで開閉部材31を押すと、スプリング35(図3)のスプリング力に抗して開閉部材31が開き動作をし、開口部16gが開く。   The operation of the shutter mechanism 30 will be described on the basis of the dimensional relationship between the nozzle guide portion 42 and the oil supply nozzle FZ. As shown in FIG. 6, when the oil supply nozzle FZ is inserted from the introduction port 16 f of the opening forming member 16, the tip of the oil supply nozzle FZ enters the insertion groove 42 c of the nozzle guide portion 42, and the lock release starting portion 44 c of the lock member 44 is inclined. It hits the surface 44f. Since the inclined surface 44f converts the axial force generated by the fuel supply nozzle FZ into a radial force, the lock member 44 moves to the central axis against the urging force of the spring 46 as shown in FIG. As a result, the engagement piece 44d of the lock member 44 moves backward with respect to the stopper 48, releases the engagement with the stopper 48, and shifts from the locked position to the unlocked position. When the opening / closing member 31 is pushed by the fuel supply nozzle FZ, the opening / closing member 31 opens against the spring force of the spring 35 (FIG. 3), and the opening 16g opens.

(2)−3−3 弁開閉機構50
図10および図11は開閉機構20を示す断面図であり、図10が開閉機構20の閉じ状態を、図11が開閉機構20の開き状態をそれぞれ示す。図4および図10において、弁開閉機構50は、注入口14Pを開閉する機構と負圧弁として燃料タンク内の圧力を調整する機構とを兼用している。弁開閉機構50は、弁体52と、弁支持移動体54と、被支持機構56と、スプリング57,57と、スプリング58と、ガスケットGSとを備えている。弁体52は、シート面を形成しガスケットGSに着座・離座する上面部52aと、上面部52aの外周から下方に形成された円筒状の側壁部52bとを備え、上面部52aおよび側壁部52bとにより下方に開放したカップ形状である。上面部52aには、凹所に形成された被押圧部53が形成されている。被押圧部53は、リンク機構60と連動するための曲面53aおよび押圧面53bを有している。
(2) -3-3 Valve opening / closing mechanism 50
10 and 11 are cross-sectional views showing the opening / closing mechanism 20. FIG. 10 shows a closed state of the opening / closing mechanism 20, and FIG. 11 shows an opened state of the opening / closing mechanism 20, respectively. 4 and 10, the valve opening / closing mechanism 50 serves as both a mechanism for opening and closing the inlet 14P and a mechanism for adjusting the pressure in the fuel tank as a negative pressure valve. The valve opening / closing mechanism 50 includes a valve body 52, a valve support moving body 54, a supported mechanism 56, springs 57, 57, a spring 58, and a gasket GS. The valve body 52 includes an upper surface portion 52a that forms a seat surface and is seated and separated from the gasket GS, and a cylindrical side wall portion 52b that is formed downward from the outer periphery of the upper surface portion 52a. It is a cup shape opened downward by 52b. A pressed portion 53 formed in a recess is formed on the upper surface portion 52a. The pressed portion 53 has a curved surface 53 a and a pressing surface 53 b for interlocking with the link mechanism 60.

弁支持移動体54は、上方に開放した側壁54aと底壁54bとからなり上方に開放したカップ形状の移動本体54cを備え、その内側スペースが弁体52およびスプリング58を収納する弁収納室54dになっている。弁収納室54dには、スプリング58が収納されており、弁体52を上方に向けて付勢している。移動本体54cの側壁54aには、上ガイドリブ54fおよび下ガイドリブ54gが水平方向にかつ両側から張り出して形成されている。上ガイドリブ54fおよび下ガイドリブ54gは、被支持機構56内に安定した姿勢でスライドするための部位である。上ガイドリブ54fの上面には、上方に向けてガイド突部54hが形成されて、パイプ本体14の上壁14aの下面に対する摺動性を高めている。また、移動本体54cの側面の両側には、被支持機構56によってガイドされるガイド突起54eが径方向に突設されている。図12は弁支持移動体54を下方斜めから見た斜視図である。弁支持移動体54の底壁54bには、片持ちスプリング54jが4箇所形成されている。片持ちスプリング54jは、被支持機構56との摺動抵抗を低減するためのものであり、底壁54bの一部を切欠きしたアーム54kと、アーム54kの先端を下方に突出させた突部54mから形成されている。また、移動本体54cの下面両側には、スプリング57(図4)を押圧するスプリング支持突部54pが突設されている。   The valve support moving body 54 includes a cup-shaped moving main body 54c that is formed of a side wall 54a and a bottom wall 54b that are opened upward, and that has an inner space for storing the valve body 52 and the spring 58. It has become. A spring 58 is housed in the valve housing chamber 54d and urges the valve body 52 upward. On the side wall 54a of the moving body 54c, an upper guide rib 54f and a lower guide rib 54g are formed so as to protrude in the horizontal direction from both sides. The upper guide rib 54f and the lower guide rib 54g are parts for sliding in a stable posture in the supported mechanism 56. On the upper surface of the upper guide rib 54f, a guide protrusion 54h is formed upward to enhance the slidability with respect to the lower surface of the upper wall 14a of the pipe body 14. Further, on both sides of the side surface of the moving body 54c, guide protrusions 54e guided by the supported mechanism 56 are provided in the radial direction. FIG. 12 is a perspective view of the valve support moving body 54 as viewed obliquely from below. On the bottom wall 54b of the valve support moving body 54, four cantilever springs 54j are formed. The cantilever spring 54j is for reducing sliding resistance with the supported mechanism 56, and an arm 54k with a part of the bottom wall 54b cut out, and a protrusion with the tip of the arm 54k protruding downward. It is formed from 54m. Further, on both sides of the lower surface of the moving body 54c, spring support protrusions 54p that press the spring 57 (FIG. 4) are provided.

図4に戻り、被支持機構56は、パイプ本体14に固定されて、弁支持移動体54をスライド可能に支持するものであり、パイプ本体14の内壁に固定された下支持板56aと、下支持板56aの上面から対向するように突設されたガイド側壁56b,56bとを備えている。各々のガイド側壁56bには、ガイド溝56cおよび挿入用溝56dが形成されている。ガイド溝56cは、水平方向に沿って形成され、弁支持移動体54のガイド突起54eを倣わせることで、弁支持移動体54を水平方向へガイドする。挿入用溝56dは、ガイド突起54eをガイド溝56cに挿入するための溝である。また、ガイド側壁56b,56bの内側には、弁支持移動体54を元の位置に戻すための復帰用のスプリング57,57が配置されている。各々のスプリング57は、下支持板56aの上面両側に形成された収納溝56eに装填されており、弁支持移動体54のスプリング支持突部54pに押されることにより復帰力を蓄積する。   Returning to FIG. 4, the supported mechanism 56 is fixed to the pipe body 14 and slidably supports the valve support moving body 54, and includes a lower support plate 56 a fixed to the inner wall of the pipe body 14, and a lower support plate 56 a. Guide side walls 56b and 56b are provided so as to protrude from the upper surface of the support plate 56a. Each guide side wall 56b is formed with a guide groove 56c and an insertion groove 56d. The guide groove 56c is formed along the horizontal direction, and guides the valve support moving body 54 in the horizontal direction by following the guide protrusion 54e of the valve support moving body 54. The insertion groove 56d is a groove for inserting the guide protrusion 54e into the guide groove 56c. Further, return springs 57 and 57 for returning the valve support moving body 54 to their original positions are arranged inside the guide side walls 56b and 56b. Each spring 57 is loaded in a storage groove 56e formed on both sides of the upper surface of the lower support plate 56a, and accumulates a restoring force by being pushed by the spring support protrusion 54p of the valve support moving body 54.

ガスケットGSは、ゴム材料から形成された環状の部材であり、パイプ本体14の注入口14Pの開口周縁部に形成されたシール保持部14fに圧入固定されており、弁体52がスプリング58の付勢力により押圧することでシールした状態で注入口14Pを閉じる。   The gasket GS is an annular member made of a rubber material, and is press-fitted and fixed to a seal holding portion 14f formed at the peripheral edge of the inlet 14P of the pipe body 14, and the valve body 52 is attached with a spring 58. The inlet 14P is closed in a sealed state by being pressed by a force.

(2)−3−4 リンク機構60
リンク機構60は、シャッタ機構30の力を、弁開閉機構50に伝達することで弁開閉機構50を開き動作させるものであり、リンク棒62と、作動部材64とを備えている。リンク棒62は、その上端が回動支持部33に回動可能に支持される連結端62aと、他端が二股に分かれて作動部材64の一端に回動可能に連結する連結端62bとを備えている。作動部材64は、リンク棒62に連結されて弁開閉機構50に移動力を加える部材であり、リンク棒62に連結された回動支持部64aと、回動支持部64aに固定された湾曲したアーム64bと、アーム64bの先端に形成された球体としての押圧体64cとを備えている。すなわち、リンク棒62の上端は、軸63aを介して開閉部材31の回動支持部33に連結され、リンク棒62の下端は、作動部材64の回動支持部64aに軸63bを介して回転可能に連結されている。作動部材64は、回動支持部64aで軸65aを介して、支持体17の軸穴17cに回転可能に支持されている。
(2) -3-4 Link mechanism 60
The link mechanism 60 opens the valve opening / closing mechanism 50 by transmitting the force of the shutter mechanism 30 to the valve opening / closing mechanism 50, and includes a link rod 62 and an operating member 64. The link rod 62 has a connection end 62a whose upper end is rotatably supported by the rotation support portion 33, and a connection end 62b whose other end is bifurcated and rotatably connected to one end of the operating member 64. I have. The actuating member 64 is a member that is connected to the link rod 62 and applies a moving force to the valve opening / closing mechanism 50, and includes a rotation support portion 64a connected to the link rod 62 and a curved portion fixed to the rotation support portion 64a. An arm 64b and a pressing body 64c as a sphere formed at the tip of the arm 64b are provided. That is, the upper end of the link rod 62 is connected to the rotation support portion 33 of the opening / closing member 31 via the shaft 63a, and the lower end of the link rod 62 rotates to the rotation support portion 64a of the operating member 64 via the shaft 63b. Connected as possible. The actuating member 64 is rotatably supported in the shaft hole 17c of the support body 17 via the shaft 65a by the rotation support portion 64a.

(3) タンク用開閉装置の開閉動作
次にタンク用開閉装置10の動作について説明する。
(3)−1 閉じ状態
図10の弁開閉機構50の閉じ状態において、弁開閉機構50の弁体52に加わっている力の関係、つまり大気圧による開き方向の力とタンク内圧およびスプリング58のスプリングによる閉じ方向への力との関係において、前者が後者を上回る負圧状態になると、弁体52は、スプリング58の付勢力に抗して下方に移動し、ガスケットGSから離れ、その間に通気路を確保する。この通気路を通じて燃料タンクが大気に連通して燃料タンク内の負圧状態が解消する方向へ向かう。そして、弁体52に加わっている差圧がスプリング58の付勢力を下回ると弁体52が閉じる。
(3) Opening / Closing Operation of Tank Opening / Closing Device Next, the operation of the tank opening / closing device 10 will be described.
(3) -1 Closed State In the closed state of the valve opening / closing mechanism 50 in FIG. 10, the relationship between the forces applied to the valve body 52 of the valve opening / closing mechanism 50, that is, the force in the opening direction due to atmospheric pressure, the tank internal pressure, and the spring 58 In relation to the force in the closing direction by the spring, when the former is in a negative pressure state exceeding the latter, the valve body 52 moves downward against the urging force of the spring 58, moves away from the gasket GS, and vents between them. Secure the road. The fuel tank communicates with the atmosphere through this air passage and heads in a direction to eliminate the negative pressure state in the fuel tank. When the differential pressure applied to the valve body 52 falls below the urging force of the spring 58, the valve body 52 is closed.

(3)−2 開き動作
図1に示すように、給油蓋FLを開けると、給油室FR内に配置されたタンク用開閉装置10が表れる。図8に示すように給油ノズルFZを開口形成部材16の導入口16fから挿入すると、シャッタ機構30のノズルガイド部42にガイドされる。すなわち、図9(B)に示すようにノズルガイド部42は、給油ノズルFZの内径Dz1がノズルガイド部42の内径位置決め部42aの外径D1より大きいから、挿入溝42c内のロック部材44のロック解除起動部44cを押す。ロック部材44は、スプリング46の付勢力に抗して径方向に移動し、ストッパ48から後退して非ロック位置になる。そして、図11に示すように、給油ノズルFZで開閉部材31の円板部32をさらに押すと、回動支持部33の軸34を中心にスプリング35のスプリング力に抗して時計方向d1へ回動する。
(3) -2 Opening Operation As shown in FIG. 1, when the fueling lid FL is opened, the tank opening / closing device 10 disposed in the fueling chamber FR appears. As shown in FIG. 8, when the oil supply nozzle FZ is inserted from the inlet 16 f of the opening forming member 16, it is guided by the nozzle guide portion 42 of the shutter mechanism 30. That is, as shown in FIG. 9B, the nozzle guide portion 42 has an inner diameter Dz1 of the oil supply nozzle FZ that is larger than an outer diameter D1 of the inner diameter positioning portion 42a of the nozzle guide portion 42. The lock release starting part 44c is pushed. The lock member 44 moves in the radial direction against the urging force of the spring 46 and moves backward from the stopper 48 to the unlocked position. Then, as shown in FIG. 11, when the disk portion 32 of the opening / closing member 31 is further pushed by the oil supply nozzle FZ, it is counterclockwise against the spring force of the spring 35 around the shaft 34 of the rotation support portion 33 in the clockwise direction d1. Rotate.

このとき、リンク機構60は、回動支持部33が時計方向に回動すると、軸63aを介してリンク棒62が上方d2に移動する。リンク棒62の上方への移動により、軸63bを介して作動部材64の一端を引き上げる。作動部材64は、回動支持部64aの軸65aを中心に時計方向d3に回動する。作動部材64の回動により、アーム64bの先端の押圧体64cが弁体52の被押圧部53内に挿入される。作動部材64の回動に伴って押圧体64cが被押圧部53の押圧面53bを押して、弁体52が弁支持移動体54と一体に円上の方向d4に押されて移動する。弁支持移動体54は、図4に示す上下ガイドリブ54f,54gが被支持機構56のガイド側壁56bに沿ってガイドされ、さらにガイド突起54eがガイド溝56cを倣って水平方向へガイドされる。これと同時に、弁開閉機構50は、弁体52の上面部52aがガスケットGSに対して、円弧の軌跡に沿って斜め下方に移動することで離れて、注入口14Pから待避するように移動する。このとき、弁支持移動体54は、スプリング支持突部54pがスプリング57を弾性変形させることでスプリング力を蓄積する。このように、シャッタ機構30に連動して、弁開閉機構50が水平方向に待避することにより、注入口14Pが開かれ、注入口14Pを通じて給油ノズルFZを挿入して、燃料通路11Pに給油する。すなわち、給油ノズルFZでシャッタ機構30の開閉部材31を押せば、弁開閉機構50が注入口14Pを開くから、給油することができる。   At this time, in the link mechanism 60, when the rotation support portion 33 rotates clockwise, the link rod 62 moves upward d2 via the shaft 63a. As the link bar 62 moves upward, one end of the operating member 64 is pulled up via the shaft 63b. The operation member 64 rotates in the clockwise direction d3 about the shaft 65a of the rotation support portion 64a. By the rotation of the operating member 64, the pressing body 64c at the tip of the arm 64b is inserted into the pressed portion 53 of the valve body 52. As the operating member 64 rotates, the pressing body 64c presses the pressing surface 53b of the pressed portion 53, and the valve body 52 is pushed and moved in the circular direction d4 together with the valve support moving body 54. In the valve support moving body 54, the upper and lower guide ribs 54f and 54g shown in FIG. 4 are guided along the guide side wall 56b of the supported mechanism 56, and the guide protrusion 54e is guided in the horizontal direction along the guide groove 56c. At the same time, the valve opening / closing mechanism 50 moves away from the inlet 14P by moving the upper surface portion 52a of the valve body 52 diagonally downward along the locus of the arc with respect to the gasket GS. . At this time, the valve support moving body 54 accumulates a spring force by the spring support protrusion 54p elastically deforming the spring 57. Thus, in conjunction with the shutter mechanism 30, the valve opening / closing mechanism 50 is retracted in the horizontal direction, whereby the inlet 14P is opened, and the fuel nozzle FZ is inserted through the inlet 14P to supply fuel to the fuel passage 11P. . That is, if the opening / closing member 31 of the shutter mechanism 30 is pushed by the fuel supply nozzle FZ, the valve opening / closing mechanism 50 opens the inlet 14P, so that fuel can be supplied.

(3)−3 閉じ動作
給油を終えて、給油ノズルFZを注入口14P、開口部16gから抜くと、給油ノズルFZが円板部32を介してスプリング35のスプリング力が開放される。このスプリング力の開放により、円板部32が回動支持部33の軸34を中心に反時計方向へ回動して、リンク棒62を引き下げ、さらに作動部材64を反時計方向へ移動させる。作動部材64が反時計方向へ回動すると、押圧体64cが弁開閉機構50の被押圧部53から外れる。これにより、スプリング57の復元力は、弁開閉機構50の弁支持移動体54および弁体52を一体に水平方向へ移動させ、弁体52が注入口14Pを閉じる。なお、図8に示すように開閉部材31の閉じ動作の際に、ロック部材44の係合片44dの上面の傾斜面44gがストッパ48の傾斜面48aによって押されて、ロック部材44がスプリング46のスプリング力に抗して径方向へ移動して、係合片44dがストッパ48を乗り越えることでロック位置に戻る。
(3) -3 Closing Operation When the refueling is finished and the refueling nozzle FZ is removed from the inlet 14P and the opening 16g, the refueling nozzle FZ is released from the spring force of the spring 35 via the disc portion 32. Due to the release of the spring force, the disc portion 32 rotates counterclockwise around the shaft 34 of the rotation support portion 33, pulls down the link rod 62, and further moves the operating member 64 counterclockwise. When the operating member 64 rotates counterclockwise, the pressing body 64c is detached from the pressed portion 53 of the valve opening / closing mechanism 50. Thereby, the restoring force of the spring 57 integrally moves the valve support moving body 54 and the valve body 52 of the valve opening / closing mechanism 50 in the horizontal direction, and the valve body 52 closes the inlet 14P. 8, when the opening / closing member 31 is closed, the inclined surface 44g of the upper surface of the engaging piece 44d of the lock member 44 is pushed by the inclined surface 48a of the stopper 48, and the lock member 44 is moved to the spring 46. When the engagement piece 44d gets over the stopper 48, it returns to the lock position.

(4) タンク用開閉装置の作用・効果
上記実施例にかかるタンク用開閉装置10により、以下の作用効果を奏する。
(4) Actions / effects of the tank opening / closing device The tank opening / closing device 10 according to the above embodiment provides the following effects.

(4)−1 ロック機構40のノズルガイド部42は、内径位置決め部42aで給油ノズルFZを位置決めするとともに、給油ノズルFZをロック解除起動部44cへ導く。すなわち、内径位置決め部42aは、給油ノズルFZ(z)のノズル口FZaに入り込むときには、該内径位置決め部42aの外径より僅かに大きい内径を有する給油ノズルFZ(z)しか位置決めをせず、ロック解除起動部44cを押圧するように導かないから、ガソリン用の給油ノズルFZ(g)によってロック解除起動部44cの押圧動作をさせない。したがって、給油ノズルFZの内径の大きさによって、燃料の種類が異なる場合に、給油ノズルFZを誤って挿入しても、開閉部材31が開き動作をしないから、間違った種類の燃料を供給することもない。 (4) -1 The nozzle guide part 42 of the lock mechanism 40 positions the fuel supply nozzle FZ by the inner diameter positioning part 42a and guides the fuel supply nozzle FZ to the lock release starting part 44c. That is, when the inner diameter positioning portion 42a enters the nozzle port FZa of the fuel supply nozzle FZ (z), only the fuel supply nozzle FZ (z) having an inner diameter slightly larger than the outer diameter of the inner diameter positioning portion 42a is positioned and locked. Since the unlocking activation part 44c is not guided to be pressed, the unlocking activation part 44c is not pressed by the gasoline refueling nozzle FZ (g). Therefore, when the type of fuel differs depending on the size of the inner diameter of the fueling nozzle FZ, even if the fueling nozzle FZ is mistakenly inserted, the opening / closing member 31 does not open, so that the wrong type of fuel is supplied. Nor.

(4)−2 ガソリン用の給油ノズルFZ(g)を導入口16fに誤って挿入しても、シャッタ機構30で阻止され、弁開閉機構50に直接当たらないから、弁開閉機構50の損傷に至らず、また、このような事態を想定して弁開閉機構50の構成自体も強固にすることを要しない。 (4) -2 Even if the gasoline refueling nozzle FZ (g) is erroneously inserted into the inlet 16f, it is blocked by the shutter mechanism 30 and does not directly contact the valve opening / closing mechanism 50. In addition, it is not necessary to strengthen the structure of the valve opening / closing mechanism 50 assuming such a situation.

(4)−3 ノズルガイド部42は、内径位置決め部42aの外周側に、外径位置決め部42bを設けているので、給油ノズルFZの外周部を位置決めをし、よって一層、給油ノズルFZの種類の選択性を高めることができる。 (4) -3 Since the nozzle guide portion 42 is provided with the outer diameter positioning portion 42b on the outer peripheral side of the inner diameter positioning portion 42a, the outer peripheral portion of the oil supply nozzle FZ is positioned, and thus the type of the oil supply nozzle FZ is further increased. Can increase the selectivity.

(4)−4 ロック解除起動部44cは、内径位置決め部42aの中心を囲むように同心円上に2個配置されているから、給油ノズルFZの先端がロック解除起動部44cに片当たりしても、ロック部材44を解除しない。 (4) -4 Since the two unlocking activation parts 44c are arranged concentrically so as to surround the center of the inner diameter positioning part 42a, even if the tip of the fueling nozzle FZ hits the unlocking activation part 44c. The lock member 44 is not released.

(4)−5 ロック機構40は、開閉部材31に一体的に組み付けられているから、構成をコンパクトにすることができる。 (4) -5 Since the lock mechanism 40 is integrally assembled with the opening / closing member 31, the configuration can be made compact.

(4)−6 給油するために、給油ノズルFZ(z)を挿入すると、シャッタ機構30の開閉部材31が開き動作をするとともに、弁開閉機構50の弁体52が注入口14Pも開くから、燃料キャップをネジ式で外すタイプと比べて、給油時に取り外した燃料キャップの置き場に困ることがなく、操作性に優れている。 (4) -6 When the fueling nozzle FZ (z) is inserted for fueling, the opening / closing member 31 of the shutter mechanism 30 opens and the valve body 52 of the valve opening / closing mechanism 50 also opens the inlet 14P. Compared to the type in which the fuel cap is removed with a screw type, there is no problem with the location of the fuel cap removed during refueling, and the operability is excellent.

(4)−7 図4に示す開閉部材31を閉じ方向へ付勢するスプリング35は、図7に示すロック部材44を付勢するスプリング46のスプリング力に抗してロック部材44を元のロック位置に移動させるので、給油ノズルFZが開口部16gから抜かれたときに、スプリング46がロック部材44を元の位置に復帰させ、元の状態への復帰ための機構を簡略化できる。 (4) -7 The spring 35 that urges the opening / closing member 31 shown in FIG. 4 in the closing direction locks the lock member 44 against the spring force of the spring 46 that urges the lock member 44 shown in FIG. Since it is moved to the position, when the fuel supply nozzle FZ is removed from the opening 16g, the spring 46 returns the lock member 44 to the original position, and the mechanism for returning to the original state can be simplified.

(4)−8 シャッタ機構30は、ロック部材44のロック解除起動部44cを給油ノズルFZの先端で押せば、開閉部材31の開き操作が可能になるから、開閉操作するための機械的機構や、スイッチやモータなどの駆動機構を設ける必要がなく、構成が簡単である。 (4) -8 The shutter mechanism 30 can open / close the opening / closing member 31 by pressing the unlocking activation part 44c of the locking member 44 with the tip of the fuel supply nozzle FZ. It is not necessary to provide a drive mechanism such as a switch or a motor, and the configuration is simple.

(4)−9 シャッタ機構30は、給油時以外にタンク開口形成部材11の開口部16gを閉じているから、開口部16gを通じて弁開閉機構50に達する大気中の塵などを防ぎ、弁開閉機構50のシール性の低下を防止することができる。 (4) -9 Since the shutter mechanism 30 closes the opening 16g of the tank opening forming member 11 except during refueling, dust in the atmosphere reaching the valve opening / closing mechanism 50 through the opening 16g is prevented, and the valve opening / closing mechanism 50 deterioration of the sealing performance can be prevented.

(4)−10 シャッタ機構30と弁開閉機構50とを連動させる作動部材64は、シャッタ機構30の閉じ状態にて弁開閉機構50の弁体52から離れており、車両の衝突によりシャッタ機構30に加わる外力を弁開閉機構50に及ぼさないから、弁開閉機構50のシール性の低下を招かない。 (4) -10 The operating member 64 for interlocking the shutter mechanism 30 and the valve opening / closing mechanism 50 is separated from the valve body 52 of the valve opening / closing mechanism 50 in the closed state of the shutter mechanism 30, and the shutter mechanism 30 is caused by a collision of the vehicle. Since the external force applied to the valve opening / closing mechanism 50 is not exerted on the valve opening / closing mechanism 50, the sealing performance of the valve opening / closing mechanism 50 is not deteriorated.

B.第2実施例
図13は第2実施例にかかるタンク用開閉装置10Bの上部を示す斜視図、図14は図13の14−14線に沿った断面図である。本実施例は、シャッタ機構30Bをロックするロック機構40Bの構成に特徴を有する。すなわち、ロック機構40Bは、1つのロック部材44Bと、ロック部材44Bにスプリング力を加えるスプリング46Bとを備えている。ロック部材44Bは、ロック部材本体44Baと、ロック解除起動部44Bcとに分割して構成されている。ロック部材本体44Baは、その先端に係合片44Bdを有し、ロック部材本体44Baのスライド動作によってストッパ48Bに係脱する。ロック解除起動部44Bcは、ノズルガイド部42Bの挿入溝42Bcに配置されており、その下部に傾斜面44Bhを有し、ロック部材本体44Baの貫通孔44Biに挿入される。傾斜面44Bhは、貫通孔44Biの端部を押すことにより、ロック解除起動部44Bcが軸方向へ移動する力を、ロック部材本体44Baが径方向へ移動する力に変換する面である。
B. Second Embodiment FIG. 13 is a perspective view showing an upper part of a tank opening / closing device 10B according to a second embodiment, and FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. The present embodiment is characterized by the configuration of a lock mechanism 40B that locks the shutter mechanism 30B. That is, the lock mechanism 40B includes one lock member 44B and a spring 46B that applies a spring force to the lock member 44B. The lock member 44B is configured to be divided into a lock member main body 44Ba and a lock release starting portion 44Bc. The lock member main body 44Ba has an engagement piece 44Bd at its tip, and is engaged with and disengaged from the stopper 48B by the sliding operation of the lock member main body 44Ba. The unlocking activation portion 44Bc is disposed in the insertion groove 42Bc of the nozzle guide portion 42B, has an inclined surface 44Bh at the lower portion thereof, and is inserted into the through hole 44Bi of the lock member main body 44Ba. The inclined surface 44Bh is a surface that converts a force that moves the unlocking activation portion 44Bc in the axial direction into a force that moves the lock member main body 44Ba in the radial direction by pushing the end of the through hole 44Bi.

図14のシャッタ機構30Bの閉じ状態において、給油ノズルFZを開口形成部材16Bの開口部16Bgから挿入すると、図15に示すように給油ノズルFZの先端がロック解除起動部44Bcを押す。ロック解除起動部44Bcは、下方への移動につれて傾斜面44Bhがロック部材本体44Baの貫通孔44Biの開口端を押して、ロック部材本体44Baをスプリング46Bのスプリング力に抗して径方向へ移動させる。これにより、ロック部材本体44Baの係合片44Bdがストッパ48Bに対して後退して、ストッパ48Bとの係合を解除して、ロック位置から非ロック位置になる。そして、給油ノズルFZで開閉部材31Bを押すと、スプリング力に抗して開閉部材31Bが開き動作をし、開口部16Bgが開く。
本実施例のロック機構40Bのように、ロック解除起動部44Bcおよびロック部材本体44Baからなる1つのロック部材44Bで実現することにより、簡単な構成としてもよい。
When the oil supply nozzle FZ is inserted from the opening 16Bg of the opening forming member 16B in the closed state of the shutter mechanism 30B in FIG. 14, the tip of the oil supply nozzle FZ pushes the lock release activation part 44Bc as shown in FIG. As the unlocking activation portion 44Bc moves downward, the inclined surface 44Bh pushes the opening end of the through hole 44Bi of the lock member main body 44Ba to move the lock member main body 44Ba in the radial direction against the spring force of the spring 46B. As a result, the engagement piece 44Bd of the lock member main body 44Ba moves backward with respect to the stopper 48B, releases the engagement with the stopper 48B, and shifts from the locked position to the unlocked position. When the opening / closing member 31B is pushed by the fuel supply nozzle FZ, the opening / closing member 31B opens against the spring force, and the opening 16Bg opens.
As in the lock mechanism 40B of the present embodiment, a simple configuration may be realized by realizing with one lock member 44B including the lock release starting portion 44Bc and the lock member main body 44Ba.

C.第3実施例
図16は第3実施例にかかるシャッタ機構30Cを説明する斜視図である。本実施例は、ロック機構40Cを構成するノズルガイド部42Cの形状に特徴を有する。すなわち、ノズルガイド部42Cの内径位置決め部42Caは、円弧状の突起であり、環状突部42Cbとの間にロック解除起動部44Ccを配置している。内径位置決め部42Caは、給油ノズルFZのノズル口FZaに突入することによって環状突部42Cbとの間に給油ノズルFZの先端部を位置決めし、ロック解除起動部44Ccを押圧動作させることができる。このように、内径位置決め部42Caは、ノズル口FZaに突入することによって、所定の内径の給油ノズルFZだけを位置決めできる形状および配置であれば、特に限定されない。
C. Third Embodiment FIG. 16 is a perspective view for explaining a shutter mechanism 30C according to a third embodiment. This embodiment is characterized by the shape of the nozzle guide portion 42C constituting the lock mechanism 40C. That is, the inner diameter positioning portion 42Ca of the nozzle guide portion 42C is an arc-shaped protrusion, and the unlocking activation portion 44Cc is disposed between the annular protrusion 42Cb. The inner diameter positioning part 42Ca can enter the nozzle port FZa of the fuel supply nozzle FZ to position the tip of the fuel supply nozzle FZ between the annular protrusion 42Cb and press the lock release starting part 44Cc. As described above, the inner diameter positioning portion 42Ca is not particularly limited as long as it has a shape and an arrangement capable of positioning only the fuel nozzle FZ having a predetermined inner diameter by entering the nozzle port FZa.

D.第4実施例
図17は第4実施例にかかるロック機構40Dのノズルガイド部42Dを説明する説明図である。本実施例では、ガソリン用の給油ノズルFZ(g)により給油できるが、軽油用の給油ノズルFZ(z)による給油を阻止した構成に特徴を有する。すなわち、内径位置決め部42Daの外径D1をガソリン用の給油ノズルFZ(g)の内径Dg1より僅かに小さくし、環状突部42Dbの内径D2をガソリン用の給油ノズルFZ(g)外径Dg2より大きくする。この構成により、ガソリン用の給油ノズルFZ(g)の先端は、内径位置決め部42Daにより位置決めされた状態にて、ロック解除起動部44Dcを押すことができるが、図17(B)に示すように、軽油用の給油ノズルFZ(z)の先端は、環状突部42Dbまたは内径位置決め部42Daに乗り上げて、挿入溝42Dcに入らないから、ロック解除起動部44Dcを押せない。
D. Fourth Embodiment FIG. 17 is an explanatory diagram for explaining a nozzle guide portion 42D of a lock mechanism 40D according to a fourth embodiment. In this embodiment, the fuel can be supplied by the gasoline supply nozzle FZ (g), but the fuel supply by the light oil supply nozzle FZ (z) is blocked. That is, the outer diameter D1 of the inner diameter positioning portion 42Da is slightly smaller than the inner diameter Dg1 of the gasoline supply nozzle FZ (g), and the inner diameter D2 of the annular protrusion 42Db is smaller than the gasoline supply nozzle FZ (g) outer diameter Dg2. Enlarge. With this configuration, the tip of the gasoline refueling nozzle FZ (g) can push the unlocking activation part 44Dc while being positioned by the inner diameter positioning part 42Da, but as shown in FIG. The tip of the fuel oil nozzle FZ (z) for light oil rides on the annular protrusion 42Db or the inner diameter positioning part 42Da and does not enter the insertion groove 42Dc, so that the unlocking activation part 44Dc cannot be pushed.

なお、この発明は上記実施例に限られるものではなく、その要旨を逸脱しない範囲において種々の態様において実施することが可能であり、例えば次のような変形も可能である。
例えば、上記実施例では、シャッタ機構30にシール性を付与していないが、開口部16gの開口周縁部または開閉部材31の上部などにガスケットを装着して開閉部材が閉じているときにシール性を付与してもよい。これにより弁開閉機構を省略して構成を簡略化することができる。
The present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.
For example, in the above embodiment, the shutter mechanism 30 is not provided with a sealing property. However, when the opening / closing member is closed by attaching a gasket to the opening peripheral portion of the opening 16g or the upper portion of the opening / closing member 31, the sealing property is provided. May be given. Thus, the configuration can be simplified by omitting the valve opening / closing mechanism.

本発明の第1実施例に係るディーゼルエンジンを搭載した自動車の後部を示し、給油蓋を開いた状態を示す斜視図である。It is a perspective view which shows the rear part of the motor vehicle carrying the diesel engine which concerns on 1st Example of this invention, and shows the state which opened the fueling lid | cover. タンク用開閉装置の平面図である。It is a top view of the switching device for tanks. 図2の図3−3線に沿った断面図である。FIG. 3 is a cross-sectional view taken along the line 3-3 in FIG. 2. タンク用開閉装置を分解した斜視図である。It is the perspective view which decomposed | disassembled the tank opening / closing apparatus. タンク用開閉装置の上部を示す斜視図である。It is a perspective view which shows the upper part of the switch apparatus for tanks. 図5の6−6線に沿った断面図である。FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. ロック機構を分解した斜視図である。It is the perspective view which decomposed | disassembled the locking mechanism. ロック機構の動作を説明する説明図である。It is explanatory drawing explaining operation | movement of a locking mechanism. 給油ノズルとノズルガイド部との関係を説明する説明図である。It is explanatory drawing explaining the relationship between an oil supply nozzle and a nozzle guide part. 開閉機構を示す断面図である。It is sectional drawing which shows an opening / closing mechanism. 図10に続く動作を説明する説明図である。It is explanatory drawing explaining the operation | movement following FIG. 弁支持移動体を下方斜めから見た斜視図である。It is the perspective view which looked at the valve support moving body from diagonally downward. 第2実施例にかかるタンク用開閉装置の上部を示す斜視図である。It is a perspective view which shows the upper part of the switch apparatus for tanks concerning 2nd Example. 図13の14−14線に沿った断面図である。FIG. 14 is a sectional view taken along line 14-14 in FIG. 13. 図14に続く動作を説明する説明図である。It is explanatory drawing explaining the operation | movement following FIG. 第3実施例にかかるシャッタ機構を説明する斜視図である。It is a perspective view explaining the shutter mechanism concerning 3rd Example. 第4実施例にかかるロック機構のノズルガイド部を説明する説明図である。It is explanatory drawing explaining the nozzle guide part of the locking mechanism concerning 4th Example.

符号の説明Explanation of symbols

10...タンク用開閉装置
10B...タンク用開閉装置
11...タンク開口形成部材
11P...燃料通路
12...接続管
12a...縮径部
12b...直管部
14...パイプ本体
14P...注入口
14a...上壁
14c...支持壁
14d...貫通孔
14e...係合爪
14f...シール保持部
16...開口形成部材
16B...開口形成部材
16a...側壁部
16b...上壁部
16c...係合穴
16d...平面部
16e...傾斜面
16f...導入口
16g...開口部
16Bg...開口部
17...支持体
17a...軸穴
17b...係合穴
17c...軸穴
20...開閉機構
30...シャッタ機構
30B...シャッタ機構
30C...シャッタ機構
31...開閉部材
31B...開閉部材
31a...上部材
31b...下部材
31c...収納室
31d...上開口
31e...下開口
32...円板部
33...回動支持部
34...軸
35...スプリング
40...ロック機構
40B...ロック機構
40C...ロック機構
40D...ロック機構
42...ノズルガイド部
42a...内径位置決め部
42b...外径位置決め部
42c...挿入溝
42d...ガイド面
42B...ノズルガイド部
42Bc...挿入溝
42C...ノズルガイド部
42Ca...内径位置決め部
42Cb...環状突部
42D...ノズルガイド部
42Da...内径位置決め部
42Db...環状突部
42Dc...挿入溝
44...ロック部材
44B...ロック部材
44a...ロック部材本体
44b...起立部
44c...ロック解除起動部
44d...係合片
44e...スプリング支持部
44f...傾斜面
44g...傾斜面
44Ba...ロック部材本体
44Bc...ロック解除起動部
44Bd...係合片
44Cc...ロック解除起動部
44Bh...傾斜面
44Bi...貫通孔
44Dc...ロック解除起動部
46...スプリング
46B...スプリング
48...ストッパ
48B...ストッパ
48a...傾斜面
50...弁開閉機構
52...弁体
52a...上面部
52b...側壁部
53...被押圧部
53a...曲面
53b...押圧面
54...弁支持移動体
54a...側壁
54b...底壁
54c...移動本体
54d...弁収納室
54e...ガイド突起
54f,54g...上下ガイドリブ
54h...ガイド突部
54j...片持ちスプリング
54k...アーム
54m...突部
54p...スプリング支持突部
56...被支持機構
56a...下支持板
56b...ガイド側壁
56c...ガイド溝
56d...挿入用溝
56e...収納溝
57...スプリング
58...スプリング
60...リンク機構
62...リンク棒
62a...連結端
62b...連結端
63a...軸
63b...軸
64...作動部材
64a...回動支持部
64b...アーム
64c...押圧体
65a...軸
BP...基板
FL...給油蓋
FLa...蓋本体
FLb...ヒンジ
FR...給油室
FZ...給油ノズル
FZa...ノズル口
GS...ガスケット
DESCRIPTION OF SYMBOLS 10 ... Tank opening / closing device 10B ... Tank opening / closing device 11 ... Tank opening forming member 11P ... Fuel passage 12 ... Connection pipe 12a ... Diameter reduction part 12b ... Straight pipe part 14 ... Pipe body 14P ... Injection port 14a ... Upper wall 14c ... Supporting wall 14d ... Through hole 14e ... Engaging claw 14f ... Seal holding part 16 ... Opening formation Member 16B ... Opening forming member 16a ... Side wall portion 16b ... Upper wall portion 16c ... Engagement hole 16d ... Flat surface portion 16e ... Inclined surface 16f ... Inlet port 16g ... Opening 16Bg ... Opening 17 ... Support 17a ... Shaft hole 17b ... Engagement hole 17c ... Shaft hole 20 ... Opening / closing mechanism 30 ... Shutter mechanism 30B ... Shutter Mechanism 30C ... Shutter mechanism 31 ... Opening / closing member 31B ... Opening / closing member 31a ... Upper member 31b ... Lower member 31c ... Storage chamber 31d ... Upper opening 31e ... Lower opening 32 ... disk part 33 ... rotation support part 34 ... 35 ... Spring 40 ... Locking mechanism 40B ... Locking mechanism 40C ... Locking mechanism 40D ... Locking mechanism 42 ... Nozzle guide part 42a ... Inner diameter positioning part 42b ... Outer diameter positioning Part 42c ... insertion groove 42d ... guide surface 42B ... nozzle guide part 42Bc ... insertion groove 42C ... nozzle guide part 42Ca ... inner diameter positioning part 42Cb ... annular protrusion 42D ... .Nozzle guide part 42Da ... inner diameter positioning part 42Db ... annular protrusion 42Dc ... insertion groove 44 ... lock member 44B ... lock member 44a ... lock member main body 44b ... standing part 44c ... unlocking activation part 44d ... engagement piece 44e ... spring support part 44f ... inclined surface 44g ... inclined surface 44Ba ... lock member main body 44Bc ... unlocking activation part 44Bd. .. Engagement piece 44Cc ... Unlocking activation part 44Bh ... Inclined surface 44Bi ... Through Hole 44Dc ... Lock release starter 46 ... Spring 46B ... Spring 48 ... Stopper 48B ... Stopper 48a ... Inclined surface 50 ... Valve opening / closing mechanism 52 ... Valve body 52a. .. Upper surface portion 52b ... Side wall portion 53 ... Pressed portion 53a ... Curved surface 53b ... Pressing surface 54 ... Valve support moving body 54a ... Side wall 54b ... Bottom wall 54c .. Moving body 54d ... Valve storage chamber 54e ... Guide protrusion 54f, 54g ... Upper and lower guide ribs 54h ... Guide protrusion 54j ... Cantilever spring 54k ... Arm 54m ... Projection 54p ... Spring support projection 56 ... Supported mechanism 56a ... Lower support plate 56b ... Guide side wall 56c ... Guide groove 56d ... Insertion groove 56e ... Storage groove 57 ... Spring 58 ... Spring 60 ... Link mechanism 62 ... Link rod 62a ... Connection end 62b ... Connection end 63a ... Shaft 63b ... Shaft 64 ... Actuating member 6 a ... Rotating support part 64b ... Arm 64c ... Pressing body 65a ... Shaft BP ... Substrate FL ... Filling lid FLa ... Lid body FLb ... Hinge FR ... Refueling chamber FZ ... Refueling nozzle FZa ... Nozzle port GS ... Gasket

Claims (6)

燃料タンクへ燃料を供給する注入口(14P)を開閉するタンク用開閉装置において、
給油ノズルを挿入するための開口部(16g)と、該開口部(16g)を通じて給油ノズルから供給される燃料を燃料タンクへ導く燃料通路(11P)とを有するタンク開口形成部材(11)と、
上記タンク開口形成部材(11)に取り付けられ上記開口部(16g)を開閉する開閉部材(31)を有するシャッタ機構(30)と、
上記開口部(16g)に臨んで配置され、上記開閉部材(31)が開口部(16g)を閉じている状態に上記開閉部材(31)をロックするロック位置と上記開閉部材(31)が開口部(16g)を開くことを許容する非ロック位置とを切り換えるロック機構(40)と、
を備え、
上記ロック機構(40)は、
給油ノズルの先端の内径Dz1よりも僅かに小さい外径D1を有し、給油ノズルのノズル口(FZa)に突入することで、給油ノズルを位置決めする内径位置決め部(42a)を有するノズルガイド部(42)と、
上記内径位置決め部(42a)の外周側に配置され、該内径位置決め部(42a)で位置決めされた上記給油ノズルの先端で押圧されるロック解除起動部(44c)と、
上記ロック解除起動部(44c)に連動して上記ロック位置から上記非ロック位置に移行させるロック部材(44)と、
を備えていることを特徴とするタンク用開閉装置。
In the tank opening and closing device that opens and closes the inlet (14P) for supplying fuel to the fuel tank,
A tank opening forming member (11) having an opening (16g) for inserting a fueling nozzle and a fuel passage (11P) for guiding fuel supplied from the fueling nozzle through the opening (16g) to the fuel tank;
A shutter mechanism (30) having an opening and closing member (31) attached to the tank opening forming member (11) and opening and closing the opening (16g);
The opening and closing member (31) is positioned so as to face the opening (16g), and the opening and closing member (31) is open when the opening and closing member (31) closes the opening (16g). A locking mechanism (40) for switching between a non-locking position allowing the opening of the portion (16g),
With
The locking mechanism (40)
A nozzle guide portion having an outer diameter D1 slightly smaller than the inner diameter Dz1 at the tip of the oil supply nozzle and having an inner diameter positioning portion (42a) for positioning the oil supply nozzle by entering the nozzle port (FZa) of the oil supply nozzle. 42)
A lock release starting portion (44c) disposed on the outer peripheral side of the inner diameter positioning portion (42a) and pressed by the tip of the oil supply nozzle positioned by the inner diameter positioning portion (42a);
A locking member (44) that shifts from the locked position to the unlocked position in conjunction with the unlocking activation portion (44c);
A tank opening and closing device characterized by comprising:
請求項1に記載のタンク用開閉装置において、
上記ノズルガイド部(42)は、上記内径位置決め部(42a)の外周側に、給油ノズルのノズル口(FZa)の外周部を位置決めする外径位置決め部(42b)と、上記内径位置決め部(42a)と上記外径位置決め部(42b)との間に形成され上記ロック解除起動部(44c)を配置した挿入溝(42c)とを備えているタンク用開閉装置。
The tank opening and closing device according to claim 1,
The nozzle guide portion (42) includes an outer diameter positioning portion (42b) for positioning the outer peripheral portion of the nozzle port (FZa) of the fuel nozzle on the outer peripheral side of the inner diameter positioning portion (42a), and the inner diameter positioning portion (42a). And an insertion groove (42c) formed between the outer diameter positioning portion (42b) and having the unlocking activation portion (44c) disposed therein.
請求項1または請求項2に記載のタンク用開閉装置において、
上記ロック解除起動部(44c)は、上記内径位置決め部(42a)の中心を囲むように同心円上に複数個配置されているタンク用開閉装置。
In the tank opening and closing device according to claim 1 or 2,
A tank opening / closing device in which a plurality of the unlocking activation parts (44c) are arranged concentrically so as to surround the center of the inner diameter positioning part (42a).
請求項1ないし請求項3のいずれかに記載のタンク用開閉装置において、
上記開閉部材(31)は、上記ロック解除起動部(44c)を上記給油ノズルの挿入方向に移動可能に支持するとともに、該挿入方向に移動したロック解除起動部(44c)に連動して上記ロック部材(44)を径方向にスライド可能に支持する収納室(31c)を備えているタンク用開閉装置。
The tank opening and closing device according to any one of claims 1 to 3,
The opening / closing member (31) supports the unlocking activation part (44c) so as to be movable in the insertion direction of the fueling nozzle, and interlocks with the unlocking activation part (44c) moved in the insertion direction. A tank opening / closing device comprising a storage chamber (31c) for slidably supporting the member (44) in the radial direction.
請求項4に記載のタンク用開閉装置において、
上記ロック機構(40)は、上記タンク開口形成部材(11)に設けられ、上記ロック部材(44)と係合することで上記ロック部材(44)をロック位置に設定するストッパ(48)を備えているタンク用開閉装置。
The tank opening and closing device according to claim 4,
The locking mechanism (40) includes a stopper (48) that is provided on the tank opening forming member (11) and that engages with the locking member (44) to set the locking member (44) to a locked position. Opening and closing device for the tank.
請求項5に記載のタンク用開閉装置において、
上記シャッタ機構(30)は、上記開閉部材(31)の一端が上記タンク開口形成部材(11)に回動可能に支持された回動支持部(33)と、上記開閉部材(31)に閉弁方向に付勢するスプリング(35)とを有するフラップバルブ機構であるタンク用開閉装置。
The tank opening and closing device according to claim 5,
The shutter mechanism (30) has one end of the opening / closing member (31) supported by the tank opening forming member (11) so as to be rotatable, and the opening / closing member (31) closed by the opening / closing member (31). An opening / closing device for a tank which is a flap valve mechanism having a spring (35) biasing in the valve direction.
JP2006230534A 2006-08-28 2006-08-28 Tank opening and closing device Expired - Fee Related JP4692441B2 (en)

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JP2017538623A (en) * 2014-12-11 2017-12-28 カウテックス テクストロン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト Automobile injection system having at least two storage tanks for liquid or gaseous working substances
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WO2017221585A1 (en) * 2016-06-20 2017-12-28 八千代工業株式会社 Erroneous refueling prevention device
JPWO2017221585A1 (en) * 2016-06-20 2019-01-17 八千代工業株式会社 Misfueling prevention device
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