JP2010030543A - Opening/closing device for fuel tank - Google Patents

Opening/closing device for fuel tank Download PDF

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JP2010030543A
JP2010030543A JP2008197262A JP2008197262A JP2010030543A JP 2010030543 A JP2010030543 A JP 2010030543A JP 2008197262 A JP2008197262 A JP 2008197262A JP 2008197262 A JP2008197262 A JP 2008197262A JP 2010030543 A JP2010030543 A JP 2010030543A
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opening
nozzle
fuel
closing
fuel tank
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JP5141429B2 (en
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Hiroyuki Hagano
博之 波賀野
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device for a fuel tank certainly detecting difference of an outer diameter of an oil feed nozzle and operating a shutter mechanism by efficiently utilizing insertion force of the oil feed nozzle. <P>SOLUTION: The opening/closing device for the fuel tank is provided with: a nozzle detection mechanism 51 arranged on an introduction port 16c of a tank opening formation member 11 and detecting the oil feed nozzle having a predetermined or more outer diameter; and an operation member 41 constituting the shutter mechanism 20. The nozzle detection mechanism 51 is provided with a nozzle detection member 52 attached to the operation member 41. The nozzle detection member 52 is provided with: a pair of introduction pressing parts 53; a connection arm 54; and a lock part 55 moved from a lock position to a non-lock position by engaging/disengaging the introduction pressing part with an engagement part 16d when the introduction pressing part is pressed at a distal end of the oil feed nozzle FZ. The connection arm 54 is a reset spring for resetting it from the non-lock position to the lock position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、給油ノズルの挿入力を利用してシャッタを開いて、燃料タンクへ給油するための燃料タンクの開閉装置に関する。   The present invention relates to a fuel tank opening and closing device for opening a shutter using an insertion force of a fuel nozzle and supplying fuel to a fuel tank.

従来のこの種の技術として、特許文献１に記載されているように、燃料通路の径方向へ移動するシャッタと、給油ノズルで押圧される作動リングと、作動リングに連動してシャッタを開閉させるリンク機構とを備えた構成が知られている。この構成では、給油ノズルの先端で作動リングを押すことで該作動リングを拡径させ、その拡径による移動量をリンク機構で増幅してシャッタを開き動作させ、給油ノズルの挿入を可能にしている。   As a conventional technology of this type, as described in Patent Document 1, a shutter that moves in the radial direction of the fuel passage, an operating ring that is pressed by a fueling nozzle, and a shutter that opens and closes in conjunction with the operating ring. A configuration including a link mechanism is known. In this configuration, by pushing the operating ring at the tip of the fueling nozzle, the diameter of the working ring is expanded, the amount of movement due to the expanded diameter is amplified by the link mechanism, the shutter is opened, and the fueling nozzle can be inserted. Yes.

しかし、従来の装置では、作動リングの拡径による移動量は、数ミリしかなく、その移動量でシャッタを開けるには、大きな増幅率のリンク機構が必要となる。このため、リンク機構やシャッタに僅かに氷結が生じていても、摩擦力によりシャッタの開閉動作に障害があるという問題があった。   However, in the conventional apparatus, the movement amount due to the diameter expansion of the operating ring is only a few millimeters, and a link mechanism with a large amplification factor is required to open the shutter with the movement amount. For this reason, there is a problem that even if the link mechanism or the shutter is slightly frozen, there is a problem in the opening / closing operation of the shutter due to the frictional force.

特表２００７−５１８６１９Special table 2007-518619

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、給油ノズルＦＺの外径の違いを確実に検知するとともに、給油ノズルの挿入力を効率よく利用して、開閉機構を作動させることができる燃料タンクの開閉装置を提供することを目的とする。   In light of solving the above-described problems of the conventional technology, the present invention reliably detects a difference in the outer diameter of the fuel nozzle FZ and operates the opening / closing mechanism by efficiently using the insertion force of the fuel nozzle. An object of the present invention is to provide a fuel tank opening and closing device capable of performing the above.

本発明は、上述の課題の少なくとも一部を解決するためになされたものであり、以下の形態または適用例として実現することが可能である。   SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

［適用例１］
適用例１は、燃料タンクへ燃料を供給する通路を開閉する燃料タンクの開閉装置において、
給油ノズルを挿入するための導入口を経て燃料タンクに接続される燃料通路を有するタンク開口形成部材と、上記導入口に配置され所定以上の外径の給油ノズルを検知するノズル検知機構と、該ノズル検知機構により給油ノズルが検知されたときに上記導入口に通じる燃料通路を開閉する開閉機構とを備えた燃料タンクの開閉装置において、
上記ノズル検知機構は、上記開閉機構に装着されたノズル検知部材と、上記開口形成部材に形成され上記ノズル検知部材に係合する係合部とを備え、
上記ノズル検知部材は、所定以上の外径を有する給油ノズルの先端外周部に当たるように導入口の開口周縁部に配置された１対の導入押圧部と、上記導入口を囲むように配置され上記導入押圧部を連結する連結アームと、上記導入押圧部と一体に形成され上記導入押圧部が給油ノズルの先端で押されたときに上記係合部に係合・離脱することでロック位置から非ロック位置へ移動するロック部とを備え、
上記連結アームは、上記ロック位置から非ロック位置へ移動したときにスプリング力を蓄積し、非ロック位置からロック位置へ復帰させる復帰用のスプリングであること、を特徴とする。 [Application Example 1]
Application Example 1 is a fuel tank opening and closing device that opens and closes a passage for supplying fuel to the fuel tank.
A tank opening forming member having a fuel passage connected to a fuel tank through an inlet for inserting a fuel nozzle, a nozzle detection mechanism for detecting a fuel nozzle having an outer diameter greater than or equal to a predetermined diameter disposed in the inlet, In a fuel tank opening and closing device comprising an opening and closing mechanism for opening and closing a fuel passage leading to the introduction port when a fuel supply nozzle is detected by a nozzle detection mechanism,
The nozzle detection mechanism includes a nozzle detection member mounted on the opening / closing mechanism, and an engaging portion that is formed on the opening forming member and engages with the nozzle detection member,
The nozzle detection member is arranged so as to surround the introduction port and a pair of introduction pressing portions arranged at the opening peripheral portion of the introduction port so as to hit the tip outer peripheral portion of the oil supply nozzle having an outer diameter equal to or larger than a predetermined value. A connecting arm that connects the introduction pressing portion and the introduction pressing portion, which is formed integrally with the introduction pressing portion, engages and disengages from the engagement portion when the introduction pressing portion is pressed by the tip of the oil supply nozzle, so that it is not locked. And a lock portion that moves to the lock position,
The connecting arm is a return spring that accumulates a spring force when moved from the locked position to the unlocked position and returns the unlocked position to the locked position.

適用例１において、給油ノズルを導入口に挿入すると、導入口に配置されたノズル検知機構が給油ノズルを検知し、このノズル検知機構に連動して開閉機構が燃料通路を開閉する。ノズル検知機構の導入押圧部は、導入口に１対配置されており、給油ノズルの先端外周部で押されると、連結アームを撓ませてスプリング力を蓄積しつつ、ロック部をロック位置から非ロック位置へ移動させて係合部から離脱する。これにより、ノズル検知部材を装着した開閉機構が燃料通路を開閉する動作を行なう。   In Application Example 1, when the fuel supply nozzle is inserted into the introduction port, the nozzle detection mechanism disposed at the introduction port detects the fuel supply nozzle, and the opening / closing mechanism opens and closes the fuel passage in conjunction with the nozzle detection mechanism. A pair of introduction pressing portions of the nozzle detection mechanism are arranged at the introduction port. When the introduction pressing portion is pressed at the outer peripheral portion of the tip of the oil supply nozzle, the connecting portion is bent and the spring force is accumulated, and the lock portion is moved away from the lock position. Move to the locked position and disengage from the engaging part. Thereby, the opening / closing mechanism equipped with the nozzle detection member performs an operation of opening / closing the fuel passage.

この構成において、ノズル検知部材は、給油ノズルの先端の外径が所定径を越える場合に、給油ノズルの先端外周部で押されるから開閉機構を作動させるが、給油ノズルの先端の外径が所定径を超えない場合には、給油ノズルの先端外周部で押されないから、開閉機構を作動させない。したがって、給油ノズルの外径によって燃料の種類が異なる場合に、該給油ノズルを誤って挿入しても、開閉機構を作動させないから、間違った種類の燃料を供給することもない。   In this configuration, when the outer diameter of the tip of the fuel nozzle exceeds a predetermined diameter, the nozzle detection member is pushed by the outer periphery of the tip of the fuel nozzle so that the opening / closing mechanism is operated, but the outer diameter of the tip of the fuel nozzle is predetermined. If it does not exceed the diameter, the opening / closing mechanism is not operated because it is not pushed by the outer peripheral portion of the tip of the oiling nozzle. Therefore, when the fuel type differs depending on the outer diameter of the fueling nozzle, even if the fueling nozzle is mistakenly inserted, the opening / closing mechanism is not operated, so that the wrong type of fuel is not supplied.

また、ノズル検知部材を構成する連結アームは、導入押圧部およびロック部を元の位置に復帰させるようにスプリング力を付勢するから、給油ノズルが導入口から抜かれたときに、導入押圧部およびロック部を元の位置に復帰させ、よって元の状態への復帰ための機構を簡略化できる。この構成において、連結アームは、導入押圧部などと一体に形成されているから、部品点数が少なく、簡単な構成とすることができる。   Further, since the connecting arm constituting the nozzle detection member urges the spring force so as to return the introduction pressing portion and the lock portion to the original position, when the oil supply nozzle is pulled out from the introduction port, the introduction pressing portion and The mechanism for returning the lock portion to the original position and thus returning to the original state can be simplified. In this configuration, since the connecting arm is formed integrally with the introduction pressing portion and the like, the number of parts is small and a simple configuration can be achieved.

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.

（１） 燃料タンクの開閉装置の概略構成
図１は本発明の一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に支持された燃料タンクの開閉装置１０が配置されている。燃料タンクの開閉装置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、燃料タンクの開閉装置の詳細な構成について説明する。 (1) Schematic Configuration of Fuel Tank Opening / Closing Device FIG. 1 is a perspective view showing a rear part of an automobile equipped with a diesel engine according to an embodiment of the present invention and showing 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. A space where the fueling lid FL is opened is a fueling chamber FR, and a fuel tank opening / closing device 10 supported by the substrate BP is disposed in the fueling chamber FR. The fuel 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 fuel tank opening and closing device 10 opens and closes the fuel passage with an external force from the fueling nozzle. This is a mechanism capable of supplying fuel from a fuel nozzle to a fuel tank. Hereinafter, the detailed configuration of the fuel tank opening and closing device will be described.

（２） 各部の構成および動作
図２は開閉装置１０の軸方向に沿った断面図である。図２において、燃料タンクの開閉装置１０は、燃料タンク（図示省略）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を開閉するシャッタ機構２０と、フラップバルブ機構６０とを備えている。 (2) Configuration and Operation of Each Part FIG. 2 is a cross-sectional view along the axial direction of the switchgear 10. In FIG. 2, a fuel tank opening / closing device 10 includes a tank opening forming member 11 having a fuel passage 11P connected to a fuel tank (not shown), a shutter mechanism 20 for opening / closing the fuel passage 11P, and a flap valve mechanism 60. It has.

（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の上部に固定された開口形成部材１６と、接続管１２の上部に装着された注入口形成部材１８とを備えている。 (2) -1 Tank opening forming member 11
The tank opening forming member 11 is a pipe body having a fuel passage 11P, and is attached to the connecting pipe 12 connected to the fuel tank, the opening forming member 16 fixed to the upper part of the connecting pipe 12, and the upper part of the connecting pipe 12. The injection port forming member 18 is provided.

接続管１２は、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。開口形成部材１６は、接続管１２の上部に装着され、円筒状の側壁部１６ａと、側壁部１６ａの上部に一体形成された上面部１６ｂとを備えている。側壁部１６ａの下部は、やや拡径された拡径部１６ｅから下部円筒部１６ｆになっている。開口形成部材１６は、下部円筒部１６ｆの内壁の爪１６ｇと接続管１２の上部外周のスカート部１２ｃとにより抜止めされて接続管１２に装着されている。上面部１６ｂの中央部には、導入口１６ｃが形成されている。   The connecting pipe 12 includes a reduced diameter portion 12a that is gradually reduced in diameter on the fuel tank side, and a straight pipe portion 12b that is connected to the reduced diameter portion 12a, and these are integrally formed. The opening forming member 16 is attached to the upper part of the connecting pipe 12, and includes a cylindrical side wall part 16a and an upper surface part 16b integrally formed on the upper part of the side wall part 16a. The lower part of the side wall part 16a is changed from a slightly enlarged diameter part 16e to a lower cylindrical part 16f. The opening forming member 16 is secured to the connecting pipe 12 by being pulled out by a claw 16 g on the inner wall of the lower cylindrical portion 16 f and a skirt portion 12 c on the upper outer periphery of the connecting pipe 12. An introduction port 16c is formed at the center of the upper surface portion 16b.

注入口形成部材１８は、接続管１２の上部に固定され、フラップバルブ機構６０の一部を支持するための部材であり、燃料通路１１Ｐの一部を形成する注入口１８ａを有する円板部１８ｂと、円板部１８ｂの外周部から円筒状に突設され接続管１２に嵌合する嵌合部１８ｃとを備えている。   The inlet forming member 18 is a member that is fixed to the upper part of the connecting pipe 12 and supports a part of the flap valve mechanism 60, and has a disk part 18b having an inlet 18a that forms part of the fuel passage 11P. And a fitting portion 18c that protrudes in a cylindrical shape from the outer peripheral portion of the disc portion 18b and fits into the connecting pipe 12.

（２）−２ シャッタ機構２０
図３は図２のシャッタ機構２０を示す断面図である。シャッタ機構２０は、給油ノズルの先端で押されることにより開き動作を行なう機構であり、その主要な構成として、注入口形成部材１８に固定された支持体２１と、支持体２１に回転可能に支持されたシャッタ３０と、支持体２１に昇降可能に支持されシャッタ３０を回動させる作動機構４０とを備えている。 (2) -2 Shutter mechanism 20
FIG. 3 is a cross-sectional view showing the shutter mechanism 20 of FIG. The shutter mechanism 20 is a mechanism that performs an opening operation by being pushed by the tip of the fueling nozzle. As a main configuration, the shutter mechanism 20 is supported by the inlet forming member 18 and is rotatably supported by the support 21. And an operating mechanism 40 that is supported by the support 21 so as to be movable up and down and rotates the shutter 30.

図４はシャッタ機構２０を分解した斜視図である。支持体２１は、円板形状の支持板２２と、支持板２２に立設された支持軸２４と、支持板２２に立設されたガイド部材２６とを備えている。図２に示すように、支持板２２の外周部は、接続管１２のスカート部１２ｃと開口形成部材１６の拡径部１６ｅとにより挟持されていることにより固定されている。なお、支持板２２の外周部は、スカート部１２ｃや開口形成部材１６に溶着するなどの各種の固定手段をとってもよい。支持板２２には、注入口１８ａ（図３）とほぼ同じ外径でありかつ給油ノズルを挿入するための挿入孔２２ａが形成されている。   FIG. 4 is an exploded perspective view of the shutter mechanism 20. The support 21 includes a disk-shaped support plate 22, a support shaft 24 erected on the support plate 22, and a guide member 26 erected on the support plate 22. As shown in FIG. 2, the outer peripheral portion of the support plate 22 is fixed by being sandwiched between the skirt portion 12 c of the connecting pipe 12 and the enlarged diameter portion 16 e of the opening forming member 16. The outer peripheral portion of the support plate 22 may take various fixing means such as welding to the skirt portion 12c or the opening forming member 16. The support plate 22 is formed with an insertion hole 22a that has substantially the same outer diameter as the injection port 18a (FIG. 3) and into which the oil supply nozzle is inserted.

シャッタ３０は、支持体２１の一端部を中心に作動機構４０に連動して回動することにより挿入孔２２ａを開閉する機構であり、円板状のシャッタ本体３１と、スプリング３６とを備えている。シャッタ本体３１の一端は、拡張部３２になっており、この拡張部３２に回動軸３３が立設されている。回動軸３３の下端は、支持板２２の支持穴２２ｂに挿入され、その上端は、開口形成部材１６の上面部１６ｂ（図２参照）の下面の軸受凹所１６ｈに支持されることにより、シャッタ３０が支持体２１に対して回動可能に支持されている。スプリング３６は、回動軸３３の下部に装着された弦巻きスプリングであり、シャッタ本体３１を閉じ方向に付勢している。   The shutter 30 is a mechanism that opens and closes the insertion hole 22 a by rotating in conjunction with the operation mechanism 40 around one end of the support 21, and includes a disk-shaped shutter body 31 and a spring 36. Yes. One end of the shutter body 31 is an extended portion 32, and a rotating shaft 33 is erected on the extended portion 32. The lower end of the rotation shaft 33 is inserted into the support hole 22b of the support plate 22, and the upper end thereof is supported by the bearing recess 16h on the lower surface of the upper surface portion 16b (see FIG. 2) of the opening forming member 16. The shutter 30 is supported so as to be rotatable with respect to the support 21. The spring 36 is a string-wound spring attached to the lower part of the rotating shaft 33 and urges the shutter body 31 in the closing direction.

作動機構４０は、導入口１６ｃに臨んで配置されており、給油ノズルの先端で押されることで下降してシャッタ３０を開き動作させる機構であり、作動部材４１と、スプリング４４と、カム機構４５と、ノズル検知機構５１と、ノズル規制機構５６とを備えている。   The actuating mechanism 40 is arranged facing the introduction port 16c, and is a mechanism that lowers the shutter 30 by being pushed by the tip of the fueling nozzle and opens the shutter 30, and the actuating member 41, the spring 44, and the cam mechanism 45. And a nozzle detection mechanism 51 and a nozzle restriction mechanism 56.

図５は作動機構４０を示す斜視図である。作動部材４１は、枠体である作動部材本体４２を有している。作動部材本体４２には、給油ノズルが挿入される挿通孔４２ａが形成されている。挿通孔４２ａの周縁部には、傾斜面４２ｂが形成されている。傾斜面４２ｂは、給油ノズルを挿通孔４２ａに導く。作動部材本体４２の端部には、支持基部４３，４３が形成されている。支持基部４３，４３には、ガイド孔４３ａ，４３ａがそれぞれ貫通形成されている。一方のガイド孔４３ａには、支持軸２４が貫通し、他方のガイド孔４３ａには、回動軸３３（図４）が貫通し、作動部材４１をその水平姿勢を維持しつつ昇降可能に支持している。スプリング４４は、支持軸２４に外装され、支持基部４３の下端のスプリング支持凹所４３ｂと支持板２２の上面とに支持されて、作動部材４１に上方へのスプリング力を加える。   FIG. 5 is a perspective view showing the operating mechanism 40. The operating member 41 has an operating member main body 42 that is a frame. The operating member main body 42 is formed with an insertion hole 42a into which the oil supply nozzle is inserted. An inclined surface 42b is formed at the peripheral edge of the insertion hole 42a. The inclined surface 42b guides the oil supply nozzle to the insertion hole 42a. Support bases 43 and 43 are formed at the end of the operating member main body 42. Guide holes 43a and 43a are formed through the support bases 43 and 43, respectively. The support shaft 24 penetrates through one guide hole 43a, and the rotation shaft 33 (FIG. 4) penetrates through the other guide hole 43a, and supports the operating member 41 so that it can be raised and lowered while maintaining its horizontal posture. is doing. The spring 44 is externally mounted on the support shaft 24, is supported by the spring support recess 43 b at the lower end of the support base 43, and the upper surface of the support plate 22, and applies an upward spring force to the operating member 41.

図６はカム機構４５を説明する説明図である。カム機構４５は、作動部材４１の下降力を、シャッタ３０を回動させるための力に変換する機構であり、支持基部４３の下部に突設された上カム部４６と、シャッタ３０の回動軸３３の外周部に形成された下カム部３４とを備えている。上カム部４６の下部は、上カム面４６ａに形成され、下カム部３４の上面は、下カム面３４ａに形成されている。下カム面３４ａは、回動軸３３の外周に沿って螺旋状の傾斜面で形成されている。したがって、カム機構４５は、作動部材４１が下降したときに、上カム面４６ａが下カム面３４ａに倣って作動部材４１の上カム部４６が下カム部３４を押して、回動軸３３を中心にシャッタ本体３１がスプリング３６のスプリング力に抗して回動する。   FIG. 6 is an explanatory view for explaining the cam mechanism 45. The cam mechanism 45 is a mechanism that converts the descending force of the operating member 41 into a force for rotating the shutter 30. The cam mechanism 45 rotates the shutter 30 and the upper cam portion 46 that projects from the lower portion of the support base 43. And a lower cam portion 34 formed on the outer peripheral portion of the shaft 33. The lower portion of the upper cam portion 46 is formed on the upper cam surface 46a, and the upper surface of the lower cam portion 34 is formed on the lower cam surface 34a. The lower cam surface 34 a is formed as a spiral inclined surface along the outer periphery of the rotation shaft 33. Therefore, when the operating member 41 is lowered, the cam mechanism 45 is configured so that the upper cam surface 46a follows the lower cam surface 34a and the upper cam portion 46 of the operating member 41 pushes the lower cam portion 34, so that the rotation shaft 33 is centered. Further, the shutter body 31 rotates against the spring force of the spring 36.

図７はノズル検知機構５１を説明する説明図である。ノズル検知機構５１は、所定の外径の給油ノズルＦＺに押されることにより、作動機構４０のロック状態を解除する機構であり、作動部材４１の下部に装着されたノズル検知部材５２と、開口形成部材１６に形成され凹所としての係合部１６ｄとを備えている。ノズル検知部材５２は、導入口１６ｃに臨みかつその両側に配置された導入押圧部５３，５３と、導入押圧部５３，５３を連結する連結アーム５４と、導入押圧部５３，５３の付近に形成されたロック部５５，５５とを備え、これらが一体に形成されている。ノズル検知部材５２の連結アーム５４は、図５に示すように、作動部材本体４２の一辺の下部から下方に向けて突設された２つのＬ字型の保持部材４２ｄ，４２ｄによって作動部材本体４２の下面に沿うように保持されている。各々の導入押圧部５３は、押圧本体５３ａと、この押圧本体５３ａから導入口１６ｃ側に向けかつ下方に向かうにしたがって傾斜した押圧斜面５３ｂとを備えている。押圧斜面５３ｂは、給油ノズルＦＺの先端の外径が所定径以上の場合に給油ノズルＦＺの先端で押すように配置されている。すなわち、導入押圧部５３，５３に対向する内端で形成される挿通孔４２ａの内径をＤ０、軽油用の給油ノズルＦＺ（ａ）の先端の外径をＤａ、ガソリン用の給油ノズルＦＺ（ｂ）をＤｂとすると、Ｄｂ＜Ｄ０＜Ｄａに設定されている。例えば、外径Ｄｂは２０ｍｍ、内径Ｄ０は２２ｍｍ、外径Ｄａは２５ｍｍに設定されている。連結アーム５４は、蛇行形状に形成され、導入押圧部５３を連結することで、スプリングとして作用する。ロック部５５は、開口形成部材１６の内周部に形成された係合部１６ｄに係脱する部位であり、作動部材４１の下面に突設された支持軸４２ｃに回動可能に支持され、支持軸４２ｃを中心に回動することによりロック位置と非ロック位置とに切り替わる。このノズル検知機構５１の構成により、挿通孔４２ａに給油ノズルＦＺ（ａ）を挿入すると、導入押圧部５３の押圧斜面５３ｂを押圧して、ロック部５５が支持軸４２ｃを中心に回動して係合部１６ｄから外れることにより、作動部材４１が下降可能になる。
なお、挿通孔４２ａの内径Ｄ０は、ガソリン用の給油ノズルＦＺ（ｂ）の外径Ｄｂより小さい径とした場合であっても、給油ノズルＦＺ（ｂ）の先端外周部が押圧斜面５３ｂを押圧したときにロック部５５が係合部１６ｄから外れず、給油可能にならない径であれば、多少の寸法範囲は許容される。 FIG. 7 is an explanatory diagram for explaining the nozzle detection mechanism 51. The nozzle detection mechanism 51 is a mechanism that releases the locked state of the operating mechanism 40 when pressed by the oil supply nozzle FZ having a predetermined outer diameter, and includes a nozzle detection member 52 attached to the lower portion of the operating member 41 and an opening formation. An engaging portion 16d formed as a recess is formed on the member 16. The nozzle detection member 52 is formed in the vicinity of the introduction pressing portions 53, 53, the introduction pressing portions 53, 53 facing the introduction port 16 c and disposed on both sides thereof, the connecting arm 54 connecting the introduction pressing portions 53, 53. The lock portions 55 and 55 are provided, and these are integrally formed. As shown in FIG. 5, the connecting arm 54 of the nozzle detection member 52 includes two L-shaped holding members 42 d and 42 d that protrude downward from a lower portion of one side of the operating member main body 42. It is hold | maintained along the lower surface of this. Each introduction pressing portion 53 includes a pressing body 53a and a pressing slope 53b that is inclined from the pressing body 53a toward the introduction port 16c and downward. The pressing slope 53b is arranged to be pressed at the tip of the oil supply nozzle FZ when the outer diameter of the tip of the oil supply nozzle FZ is equal to or larger than a predetermined diameter. That is, the inner diameter of the insertion hole 42a formed at the inner end facing the introduction pressing portions 53, 53 is D0, the outer diameter of the tip of the light oil supply nozzle FZ (a) is Da, and the gasoline supply nozzle FZ (b ) Is Db, Db <D0 <Da is set. For example, the outer diameter Db is set to 20 mm, the inner diameter D0 is set to 22 mm, and the outer diameter Da is set to 25 mm. The connecting arm 54 is formed in a meandering shape, and acts as a spring by connecting the introduction pressing portion 53. The lock portion 55 is a portion that is engaged with and disengaged from the engagement portion 16d formed on the inner peripheral portion of the opening forming member 16, and is rotatably supported by a support shaft 42c protruding from the lower surface of the operation member 41. By rotating around the support shaft 42c, the position is switched between the locked position and the unlocked position. With the configuration of the nozzle detection mechanism 51, when the oil supply nozzle FZ (a) is inserted into the insertion hole 42a, the pressing inclined surface 53b of the introduction pressing portion 53 is pressed, and the lock portion 55 rotates about the support shaft 42c. By detaching from the engaging portion 16d, the operating member 41 can be lowered.
Even if the inner diameter D0 of the insertion hole 42a is smaller than the outer diameter Db of the gasoline fuel nozzle FZ (b), the outer periphery of the tip of the fuel nozzle FZ (b) presses the pressing slope 53b. As long as the lock portion 55 does not come out of the engagement portion 16d and cannot be refueled, a certain size range is allowed.

図８は図２のシャッタ機構２０の上部を示す断面図である。ノズル規制機構５６は、作動機構４０の作動部材４１が所定の下降位置に達したときに、給油ノズルの注入口１８ａへの挿入を可能にする機構であり、開閉押圧部材５７と、開閉押圧部材５７に係合しかつガイド部材２６に形成された係合穴２６ｂとを備えている。開閉押圧部材５７は、傾斜面５７ａと、復帰用スプリング５７ｂとを備えている（図４参照）。開閉押圧部材５７は、作動部材本体４２の端部の下部に形成された側面部４３ｃの収納穴４３ｄに出没可能に収納されている。ノズル規制機構５６の構成により、給油ノズルＦＺにより押された作動部材４１が所定の位置まで下降したときに、開閉押圧部材５７が係合穴２６ｂに入り込むことで挿入孔２２ａから導入口１６ｃから待避するように構成されている。   FIG. 8 is a cross-sectional view showing the upper part of the shutter mechanism 20 of FIG. The nozzle restricting mechanism 56 is a mechanism that allows the fuel supply nozzle to be inserted into the injection port 18a when the operating member 41 of the operating mechanism 40 reaches a predetermined lowered position. The opening / closing pressing member 57 and the opening / closing pressing member And an engagement hole 26 b formed in the guide member 26. The opening / closing pressing member 57 includes an inclined surface 57a and a return spring 57b (see FIG. 4). The opening / closing pressing member 57 is housed in a housing hole 43d in the side surface 43c formed at the lower part of the end of the actuating member main body 42 so as to be able to appear and retract. Due to the configuration of the nozzle restricting mechanism 56, when the operating member 41 pushed by the fueling nozzle FZ is lowered to a predetermined position, the opening / closing pressing member 57 enters the engagement hole 26b, so that the insertion hole 22a is retracted from the introduction port 16c. Is configured to do.

（２）−３ フラップバルブ機構６０
図２において、フラップバルブ機構６０は、開閉部材６１と、スプリング６２と、ガスケットＧＳとを備えている。開閉部材６１は、注入口形成部材１８の嵌合部１８ｃに軸支され、注入口１８ａを開閉する円板形状の部材である。スプリング６２は、弦巻スプリングであり、そのコイル状の一端部が注入口形成部材１８に支持され、他端部が開閉部材６１の下面に当接して開閉部材６１を閉じる方向に付勢している。ガスケットＧＳは、ゴム材料から形成され、注入口形成部材１８の注入口１８ａの開口周縁部に圧入固定されており、開閉部材に押圧されることでシールした状態で注入口１８ａを閉じる。なお、フラップバルブ機構６０の開閉部材６１には、燃料タンクの圧力を調節する調圧弁を設けてもよい。 (2) -3 Flap valve mechanism 60
In FIG. 2, the flap valve mechanism 60 includes an opening / closing member 61, a spring 62, and a gasket GS. The opening / closing member 61 is a disk-shaped member that is pivotally supported by the fitting portion 18c of the inlet forming member 18 and opens and closes the inlet 18a. The spring 62 is a string-wound spring, and one end of the coil shape is supported by the injection port forming member 18, and the other end abuts against the lower surface of the opening / closing member 61 to bias the opening / closing member 61. . The gasket GS is formed of a rubber material, and is press-fitted and fixed to the opening peripheral portion of the injection port 18a of the injection port forming member 18, and closes the injection port 18a in a sealed state by being pressed by the opening / closing member. The opening / closing member 61 of the flap valve mechanism 60 may be provided with a pressure regulating valve that adjusts the pressure of the fuel tank.

（３） 燃料タンクの開閉装置の開閉動作
（３）−１ 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内に配置された燃料タンクの開閉装置１０が表れる。図２に示すように給油ノズルＦＺを開口形成部材１６の導入口１６ｃから挿入すると、図７に示すように、給油ノズルＦＺの先端がノズル検知部材５２の押圧斜面５３ｂを押す。押圧斜面５３ｂは、給油ノズルＦＺから径方向の力を受けると、連結アーム５４がスプリング力を蓄積するように撓みつつ、ロック部５５が支持軸４２ｃを中心に回動する（図７（Ｂ））。これにより、ロック部５５が開口形成部材１６の係合部１６ｄから外れ、作動部材４１が昇降可能になる。 (3) Opening / Closing Operation of Fuel Tank Opening / Closing Device (3) -1 Opening Operation As shown in FIG. 1, when the fueling lid FL is opened, the fuel tank opening / closing device 10 disposed in the fueling chamber FR appears. When the oil supply nozzle FZ is inserted from the introduction port 16 c of the opening forming member 16 as shown in FIG. 2, the tip of the oil supply nozzle FZ pushes the pressing slope 53 b of the nozzle detection member 52 as shown in FIG. 7. When the pressing inclined surface 53b receives a radial force from the oil supply nozzle FZ, the locking portion 55 rotates around the support shaft 42c while the connecting arm 54 is bent so as to accumulate the spring force (FIG. 7B). ). As a result, the lock portion 55 is disengaged from the engaging portion 16d of the opening forming member 16, and the operating member 41 can be raised and lowered.

図７（Ｂ）に示すように、ノズル検知部材５２の導入押圧部５３が挿通孔４２ａから待避すると、図８（Ａ）に示すように、給油ノズルＦＺの先端は、ノズル規制機構５６の開閉押圧部材５７に当たる。この状態で、給油ノズルＦＺを押し入れると、図８（Ｂ）に示すように、開閉押圧部材５７を介して作動部材４１が支持体２１の支持軸２４とシャッタ本体３１の回動軸３３にガイドされつつスプリング４４のスプリング力に抗してタンク側へ移動する（図４参照）。そして、図６に示すように、作動部材４１の下部に配置された下部のカム機構４５にて、上カム部４６の上カム面４６ａがシャッタ本体３１の下カム部３４の下カム面３４ａを押す。下カム面３４ａは、回動軸３３を中心に軸方向への傾斜面になっているから、作動部材４１は、シャッタ本体３１を、回動軸３３を中心にスプリング３６を捩りながら回転させる。これにより、シャッタ本体３１は、挿入孔２２ａを開く動作を行なう。そして、図８（Ｂ）に示すように、シャッタ本体３１が挿入孔２２ａを全開する位置まで作動部材４１が下降すると、開閉押圧部材５７がガイド部材２６の係合穴２６ｂに復帰用スプリング５７ｂ（図４参照）のスプリング力に抗して入り込んで、挿入孔２２ａの上方のスペースから待避する。これにより、給油ノズルＦＺは、開閉押圧部材５７から外れ、挿入孔２２ａに挿入される。   As shown in FIG. 7B, when the introduction pressing portion 53 of the nozzle detection member 52 is retracted from the insertion hole 42a, the tip of the fuel supply nozzle FZ opens and closes the nozzle restriction mechanism 56 as shown in FIG. It hits the pressing member 57. In this state, when the fuel supply nozzle FZ is pushed in, the operating member 41 is brought into contact with the support shaft 24 of the support body 21 and the rotation shaft 33 of the shutter body 31 via the opening / closing pressing member 57 as shown in FIG. It moves to the tank side against the spring force of the spring 44 while being guided (see FIG. 4). As shown in FIG. 6, the upper cam surface 46 a of the upper cam portion 46 is displaced from the lower cam surface 34 a of the lower cam portion 34 of the shutter body 31 by the lower cam mechanism 45 disposed below the operation member 41. Push. Since the lower cam surface 34 a is an inclined surface in the axial direction around the rotation shaft 33, the actuating member 41 rotates the shutter body 31 while twisting the spring 36 around the rotation shaft 33. Thereby, the shutter main body 31 performs an operation of opening the insertion hole 22a. Then, as shown in FIG. 8B, when the operating member 41 descends to a position where the shutter main body 31 fully opens the insertion hole 22a, the opening / closing pressing member 57 enters the engagement hole 26b of the guide member 26 and a return spring 57b ( It enters against the spring force of FIG. 4) and retracts from the space above the insertion hole 22a. Thereby, the oil supply nozzle FZ is detached from the opening / closing pressing member 57 and inserted into the insertion hole 22a.

さらに、図９に示すように、給油ノズルＦＺを押し入れると、フラップバルブ機構６０の開閉部材６１がスプリング６２の付勢力に抗して押され、開閉部材６１が支持軸６１ａを中心に回動し、注入口１８ａが開かれる。そして、給油ノズルが注入口１８ａに挿入されると、燃料通路１１Ｐに給油する。このように、給油ノズルＦＺでシャッタ機構２０の作動部材４１を押し、さらに、フラップバルブ機構６０の開閉部材６１を押せば、開閉部材６１が注入口１８ａを開き、給油することができる。   Further, as shown in FIG. 9, when the fuel supply nozzle FZ is pushed in, the opening / closing member 61 of the flap valve mechanism 60 is pushed against the urging force of the spring 62, and the opening / closing member 61 rotates around the support shaft 61a. Then, the injection port 18a is opened. When the refueling nozzle is inserted into the injection port 18a, the fuel passage 11P is refueled. In this manner, when the operating member 41 of the shutter mechanism 20 is pushed by the fuel supply nozzle FZ and further the opening / closing member 61 of the flap valve mechanism 60 is pushed, the opening / closing member 61 can open the inlet 18a to supply oil.

（３）−２ 閉じ動作
給油を終えて、給油ノズルＦＺを注入口１８ａから抜くと、フラップバルブ機構６０の開閉部材６１がスプリング６２の復元力により注入口１８ａを閉じ、さらにシャッタ３０がスプリング３６（図４参照）の復元力により挿入孔２２ａを閉じ、さらに給油蓋ＦＬ（図１）を閉じる。 (3) -2 Closing Operation When refueling is completed and the fuel supply nozzle FZ is removed from the injection port 18a, the opening / closing member 61 of the flap valve mechanism 60 closes the injection port 18a by the restoring force of the spring 62, and the shutter 30 is further moved to the spring 36. The insertion hole 22a is closed by the restoring force (see FIG. 4), and the fuel filler lid FL (FIG. 1) is further closed.

（４） 燃料タンクの開閉装置の作用・効果
上記実施例にかかる燃料タンクの開閉装置１０により、以下の作用効果を奏する。 (4) Operation / Effect of Fuel Tank Opening / Closing Device The fuel tank opening / closing device 10 according to the embodiment provides the following operational effects.

（４）−１ ノズル規制機構５６の開閉押圧部材５７が給油ノズルＦＺの挿入力を受けて作動部材４１に伝え、さらにカム機構４５が作動部材４１の移動力を、シャッタ３０を開かせる大きな力に変換し、しかも、作動部材４１の挿入方向のストローク長に応じて、シャッタ３０の開く回転方向の開度を大きくとれる。よって、シャッタ３０に氷結などにより摩擦力が増大していても、確実に開閉動作させることができる。しかも、カム機構４５は、給油ノズルＦＺの挿入力を直接、シャッタ３０に伝達するので、機械的強度も大きく、耐久性に優れている。 (4) -1 The opening / closing pressing member 57 of the nozzle restricting mechanism 56 receives the insertion force of the fuel supply nozzle FZ and transmits it to the operating member 41, and the cam mechanism 45 further applies the moving force of the operating member 41 to open the shutter 30. Furthermore, the opening degree in the rotation direction of the shutter 30 can be increased according to the stroke length of the operation member 41 in the insertion direction. Therefore, the shutter 30 can be reliably opened and closed even if the frictional force is increased due to icing or the like. In addition, since the cam mechanism 45 directly transmits the insertion force of the fuel supply nozzle FZ to the shutter 30, the mechanical strength is high and the durability is excellent.

（４）−２ 給油するために、給油ノズルＦＺを挿入すると、シャッタ機構２０のシャッタ３０が開くとともに、フラップバルブ機構６０の開閉部材６１が注入口１８ａを開くから、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) -2 When the fueling nozzle FZ is inserted for fueling, the shutter 30 of the shutter mechanism 20 opens and the opening / closing member 61 of the flap valve mechanism 60 opens the inlet 18a. Compared to the type, there is no problem with the location of the fuel cap removed during refueling, and it has excellent operability.

（４）−３ 図７に示すようにノズル検知機構５１は、給油ノズルＦＺの先端の外径が所定径以上の場合に押圧されるように配置されている導入押圧部５３を備えているので、軽油用の給油ノズルＦＺ（ａ）の場合には、シャッタ３０が挿入孔２２ａを開くが、ガソリン用の給油ノズルＦＺ（ｂ）の場合には、シャッタ３０が導入口１６ｃを開かない。したがって、給油ノズルＦＺの外径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、シャッタ３０が開かないから、間違った種類の燃料を供給することもない。 (4) -3 As shown in FIG. 7, the nozzle detection mechanism 51 includes the introduction pressing portion 53 that is arranged to be pressed when the outer diameter of the tip of the fuel supply nozzle FZ is equal to or larger than a predetermined diameter. In the case of the fuel oil nozzle FZ (a) for light oil, the shutter 30 opens the insertion hole 22a. However, in the case of the fuel oil nozzle FZ (b) for gasoline, the shutter 30 does not open the inlet 16c. Therefore, when the type of fuel differs depending on the outer diameter of the fuel supply nozzle FZ, even if the fuel supply nozzle FZ is mistakenly inserted, the shutter 30 does not open, so that the wrong type of fuel is not supplied.

（４）−４ 図７に示すようにノズル検知機構５１は、導入押圧部５３を元の位置に復帰させる方向に付勢するスプリング力を付勢する連結アーム５４を備えているので、給油ノズルＦＺが挿通孔４２ａから抜かれたときに、連結アーム５４が導入押圧部５３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。しかも、連結アーム５４は、導入押圧部５３と一体に形成されているから、部品点数が増加することなく、簡単な構成である。 (4) -4 As shown in FIG. 7, the nozzle detection mechanism 51 includes the connecting arm 54 that urges the spring force that urges the introduction pressing portion 53 in a direction to return it to the original position. When the FZ is removed from the insertion hole 42a, the connecting arm 54 returns the introduction pressing portion 53 to the original position, and the mechanism for returning to the original state can be simplified. Moreover, since the connecting arm 54 is formed integrally with the introduction pressing portion 53, the number of parts is not increased and the connection arm 54 has a simple configuration.

（４）−５ シャッタ機構２０は、導入押圧部５３を給油ノズルＦＺで押圧すればシャッタ３０が開くから、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) -5 Since the shutter mechanism 20 opens the shutter 30 when the introduction pressing portion 53 is pressed by the fuel supply nozzle FZ, there is no need to provide a mechanical mechanism for opening and closing, or a driving mechanism such as a switch or a motor. The configuration is simple.

（４）−６ ガソリン用の給油ノズルを導入口１６ｃに誤って挿入しても、シャッタ機構２０で阻止され、フラップバルブ機構６０に直接当たらないから、フラップバルブ機構６０の損傷に至らず、また、このような事態を想定してフラップバルブ機構６０の構成自体も強固にすることを要しない。 (4) -6 Even if the gasoline refueling nozzle is mistakenly inserted into the introduction port 16c, it is blocked by the shutter mechanism 20 and does not directly contact the flap valve mechanism 60, so that the flap valve mechanism 60 is not damaged. In view of such a situation, it is not necessary to strengthen the structure of the flap valve mechanism 60 itself.

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る。   The present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the scope of the invention.

本発明の一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 one Example of this invention. 燃料タンクの開閉装置の軸方向に沿った断面図である。It is sectional drawing along the axial direction of the opening / closing apparatus of a fuel tank. 図２のシャッタ機構を示す断面図である。It is sectional drawing which shows the shutter mechanism of FIG. シャッタ機構を分解した斜視図である。It is the perspective view which decomposed | disassembled the shutter mechanism. 作動機構を示す斜視図である。It is a perspective view which shows an action mechanism. カム機構を説明する説明図である。It is explanatory drawing explaining a cam mechanism. ノズル検知機構を説明する説明図である。It is explanatory drawing explaining a nozzle detection mechanism. 図２のシャッタ機構のノズル規制機構を説明する説明図である。It is explanatory drawing explaining the nozzle control mechanism of the shutter mechanism of FIG. 給油動作を説明する説明図である。It is explanatory drawing explaining oil supply operation | movement.

符号の説明Explanation of symbols

１０…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
１２ｃ…スカート部
１６…開口形成部材
１６ａ…側壁部
１６ｂ…上面部
１６ｃ…導入口
１６ｄ…係合部
１６ｅ…拡径部
１６ｆ…下部円筒部
１６ｇ…爪
１６ｈ…軸受凹所
１８…注入口形成部材
１８ａ…注入口
１８ｂ…円板部
１８ｃ…嵌合部
２０…シャッタ機構
２１…支持体
２２…支持板
２２ａ…挿入孔
２２ｂ…支持穴
２４…支持軸
２６…ガイド部材
２６ｂ…係合穴
３０…シャッタ
３１…シャッタ本体
３２…拡張部
３３…回動軸
３４…下カム部
３４ａ…下カム面
３６…スプリング
４０…作動機構
４１…作動部材
４２…作動部材本体
４２ａ…挿通孔
４２ｂ…傾斜面
４２ｃ…支持軸
４２ｄ…保持部材
４３…支持基部
４３ａ…ガイド孔
４３ｂ…スプリング支持凹所
４３ｃ…側面部
４３ｄ…収納穴
４４…スプリング
４５…カム機構
４６…上カム部
４６ａ…上カム面
５１…ノズル検知機構
５２…ノズル検知部材
５３…導入押圧部
５３ａ…押圧本体
５３ｂ…押圧斜面
５４…連結アーム
５５…ロック部
５６…ノズル規制機構
５７…開閉押圧部材
５７ａ…傾斜面
５７ｂ…復帰用スプリング
６０…フラップバルブ機構
６１…開閉部材
６１ａ…支持軸
６２…スプリング
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
ＧＳ…ガスケット DESCRIPTION OF SYMBOLS 10 ... Opening / closing device 11 ... Tank opening formation member 11P ... Fuel passage 12 ... Connection pipe 12a ... Diameter-reduction part 12b ... Straight pipe part 12c ... Skirt part 16 ... Opening formation member 16a ... Side wall part 16b ... Top surface part 16c ... Inlet 16d ... Engagement part 16e ... Diameter expansion part 16f ... Lower cylindrical part 16g ... Claw 16h ... Bearing recess 18 ... Injection port forming member 18a ... Injection port 18b ... Disc part 18c ... Fitting part 20 ... Shutter mechanism 21 ... Support DESCRIPTION OF SYMBOLS 22 ... Support plate 22a ... Insertion hole 22b ... Support hole 24 ... Support shaft 26 ... Guide member 26b ... Engagement hole 30 ... Shutter 31 ... Shutter main body 32 ... Expansion part 33 ... Rotating shaft 34 ... Lower cam part 34a ... Lower cam Surface 36 ... Spring 40 ... Actuating mechanism 41 ... Actuating member 42 ... Acting member main body 42a ... Insertion hole 42b ... Inclined surface 42c ... Support shaft 42d ... Holding member 43 ... Support base 43a ... Guide hole 43b ... Spring support recess 43c ... Side portion 43d ... Housing hole 44 ... Spring 45 ... Cam mechanism 46 ... Upper cam portion 46a ... Upper cam surface 51 ... Nozzle detection mechanism 52 ... Nozzle detection member 53 ... Introduction pressing portion 53a ... Pressing body 53b ... Pressing slope 54 ... Connecting arm 55 ... Locking part 56 ... Nozzle regulating mechanism 57 ... Opening / closing pressing member 57a ... Inclined surface 57b ... Return spring 60 ... Flap valve mechanism 61 ... Opening / closing member 61a ... Support shaft 62 ... Spring BP ... Substrate FL ... Oiling lid FLa ... Lid body FLb ... Hinge FR ... Oiling chamber FZ ... Oiling nozzle GS ... Gasket

Claims (3)

燃料タンクへ燃料を供給する通路を開閉する燃料タンクの開閉装置において、
給油ノズル（ＦＺ）を挿入するための導入口（１６ｃ）を経て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、上記導入口（１６ｃ）に配置され所定以上の外径の給油ノズルを検知するノズル検知機構（５１）と、該ノズル検知機構（５１）により給油ノズル（ＦＺ）が検知されたときに上記導入口（１６ｃ）に通じる燃料通路を開閉する開閉機構とを備えた燃料タンクの開閉装置において、
上記ノズル検知機構（５１）は、上記開閉機構に装着されたノズル検知部材（５２）と、上記開口形成部材（１６）に形成され上記ノズル検知部材（５２）に係合する係合部（１６ｄ）とを備え、
上記ノズル検知部材（５２）は、所定以上の外径を有する給油ノズル（ＦＺ）の先端外周部に当たるように導入口（１６ｃ）の開口周縁部に配置された１対の導入押圧部（５３，５３）と、上記導入口（１６ｃ）を囲むように配置され上記導入押圧部（５３，５３）を連結する連結アーム（５４）と、上記導入押圧部（５３，５３）と一体に形成され上記導入押圧部（５３）が給油ノズル（ＦＺ）の先端で押されたときに上記係合部（１６ｄ）に係合・離脱することでロック位置から非ロック位置へ移動するロック部（５５）とを備え、
上記連結アーム（５４）は、上記ロック位置から非ロック位置へ移動したときにスプリング力を蓄積し、非ロック位置からロック位置へ復帰させる復帰用のスプリングであること、
を特徴とする燃料タンクの開閉装置。 In a fuel tank opening and closing device for opening and closing a passage for supplying fuel to the fuel tank,
A tank opening forming member (11) having a fuel passage (11P) connected to the fuel tank via an introduction port (16c) for inserting a fuel supply nozzle (FZ), and disposed above the introduction port (16c) and more than a predetermined amount A nozzle detection mechanism (51) for detecting a fuel nozzle having an outer diameter of the same, and opening and closing for opening and closing a fuel passage leading to the introduction port (16c) when the fuel detection nozzle (FZ) is detected by the nozzle detection mechanism (51) A fuel tank opening and closing device comprising a mechanism,
The nozzle detection mechanism (51) includes a nozzle detection member (52) mounted on the opening / closing mechanism, and an engagement portion (16d) formed on the opening forming member (16) and engaged with the nozzle detection member (52). )
The nozzle detection member (52) is a pair of introduction pressing portions (53, 53) disposed at the opening peripheral portion of the introduction port (16c) so as to hit the outer peripheral portion of the tip of the oil supply nozzle (FZ) having an outer diameter equal to or larger than a predetermined value. 53), a connecting arm (54) arranged so as to surround the introduction port (16c) and connecting the introduction pressing portion (53, 53), and the introduction pressing portion (53, 53). A lock portion (55) that moves from the lock position to the non-lock position by engaging / disengaging the engagement portion (16d) when the introduction pressing portion (53) is pressed at the tip of the oil supply nozzle (FZ); With
The connecting arm (54) is a return spring that accumulates a spring force when moved from the locked position to the unlocked position and returns from the unlocked position to the locked position;
A fuel tank opening and closing device. 請求項１に記載の燃料タンクの開閉装置において、
上記ロック部（５５）は、上記開閉機構に設けられた支持軸（４２ｃ）により軸支され、該支持軸（４２ｃ）を中心に回動することで上記ロック位置と非ロック位置とを切り替わるように構成されている燃料タンクの開閉装置。 The fuel tank opening and closing device according to claim 1,
The lock portion (55) is pivotally supported by a support shaft (42c) provided in the opening / closing mechanism, and rotates around the support shaft (42c) to switch between the locked position and the unlocked position. A fuel tank opening and closing device configured as described above. 請求項１または請求項２に記載の燃料タンクの開閉装置において、
上記開閉機構は、上記給油ノズル（ＦＺ）を挿入する第１方向とほぼ直角の第２方向上で回動することで燃料通路を開閉するシャッタ（３０）と、該シャッタ（３０）に対して上記給油ノズル（ＦＺ）の挿入側に配置され、上記第１方向へ移動可能に設けられた作動部材（４１）と、該作動部材（４１）に連動して上記シャッタ（３０）を開閉動作させる開閉力伝達機構とを備えている燃料タンクの開閉装置。 The fuel tank opening and closing device according to claim 1 or 2,
The opening / closing mechanism has a shutter (30) that opens and closes a fuel passage by rotating in a second direction substantially perpendicular to the first direction in which the fuel supply nozzle (FZ) is inserted, and the shutter (30). An operation member (41) disposed on the insertion side of the fuel supply nozzle (FZ) and provided to be movable in the first direction, and the shutter (30) is opened and closed in conjunction with the operation member (41). A fuel tank opening and closing device comprising an opening and closing force transmission mechanism.
JP2008197262A 2008-07-31 2008-07-31 Fuel tank opening and closing device Expired - Fee Related JP5141429B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049836A1 (en) * 2010-10-14 2012-04-19 Toyoda Gosei Co., Ltd. Fuel tank opening-closing device
WO2014057141A1 (en) * 2012-10-09 2014-04-17 Cie Automotive, S.A. Inlet device for the fuel filler opening of motor vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007261492A (en) * 2006-03-29 2007-10-11 Toyoda Gosei Co Ltd Oil feeder for fuel tank
JP2008049952A (en) * 2006-08-28 2008-03-06 Toyoda Gosei Co Ltd Opening and closing device for tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007261492A (en) * 2006-03-29 2007-10-11 Toyoda Gosei Co Ltd Oil feeder for fuel tank
JP2008049952A (en) * 2006-08-28 2008-03-06 Toyoda Gosei Co Ltd Opening and closing device for tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049836A1 (en) * 2010-10-14 2012-04-19 Toyoda Gosei Co., Ltd. Fuel tank opening-closing device
WO2014057141A1 (en) * 2012-10-09 2014-04-17 Cie Automotive, S.A. Inlet device for the fuel filler opening of motor vehicles

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