JP2024010328A - fuel storage container - Google Patents

fuel storage container Download PDF

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Publication number
JP2024010328A
JP2024010328A JP2022111608A JP2022111608A JP2024010328A JP 2024010328 A JP2024010328 A JP 2024010328A JP 2022111608 A JP2022111608 A JP 2022111608A JP 2022111608 A JP2022111608 A JP 2022111608A JP 2024010328 A JP2024010328 A JP 2024010328A
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Japan
Prior art keywords
fuel
filter
storage container
lower member
upper member
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JP2022111608A
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Japanese (ja)
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聡志 伊藤
Satoshi Ito
崇 蟹江
Takashi Kanie
優 亀井
Masaru Kamei
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Aisan Industry Co Ltd
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Aisan Industry Co Ltd
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Priority to JP2022111608A priority Critical patent/JP2024010328A/en
Priority to CN202321791914.5U priority patent/CN220452068U/en
Publication of JP2024010328A publication Critical patent/JP2024010328A/en
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Abstract

PROBLEM TO BE SOLVED: To prevent decoupling of a coupling mechanism caused by a fuel storage container abutting against or getting caught on a part of a fuel tank when the fuel storage container is inserted into the fuel tank through an opening of the fuel tank.
SOLUTION: A fuel storage container 300 includes: an upper member 310 having an opening 313; a lower member 350 covering the opening 313; a filter member 340 covering the opening 313 and sandwiched between the upper member 310 and the lower member 350; and a coupling mechanism 370 coupling the upper member 310 to the lower member 350. The coupling mechanism 370 has: engaged parts 370u provided at an outer peripheral edge of the upper member 310; and engaging parts 370k provided at an outer peripheral edge of the lower member 350. Each engaging part 370k of the lower member 350 is disposed at the radial outer side relative to the engaged part 370u of the upper member 310 and configured to engage with the engaged part 370u from the radially outer side.
SELECTED DRAWING: Figure 4
COPYRIGHT: (C)2024,JPO&INPIT

Description

本発明は、アッパー部材とロア部材間に挟持されるフィルタ部材と、前記アッパー部材と前記ロア部材とを結合する結合機構とを備えており、前記アッパー部材と前記フィルタ部材とにより囲まれた領域に燃料を貯留可能な燃料貯留容器に関する。 The present invention includes a filter member held between an upper member and a lower member, and a coupling mechanism that couples the upper member and the lower member, and includes an area surrounded by the upper member and the filter member. The present invention relates to a fuel storage container capable of storing fuel.

上記した燃料貯留容器に関する技術が特許文献1に記載されている。特許文献1に記載の燃料貯留容器103は、車両の燃料供給装置100において使用されている。燃料供給装置100は、図8に示すように、車両の燃料タンク110内に設置されており、燃料タンク110内に貯留されている燃料を燃料ポンプ(図示省略)により車両のエンジン(図示省略)に圧送できるように構成されている。 A technique related to the above-mentioned fuel storage container is described in Patent Document 1. The fuel storage container 103 described in Patent Document 1 is used in a fuel supply device 100 for a vehicle. As shown in FIG. 8, the fuel supply device 100 is installed in a fuel tank 110 of a vehicle, and supplies fuel stored in the fuel tank 110 to a vehicle engine (not shown) using a fuel pump (not shown). It is configured so that it can be pumped to

燃料貯留容器103は、図9に示すように、下面開口104hを有する容器状のアッパー部材104と、そのアッパー部材104の下面開口104hを覆う蓋状のロア部材105と、アッパー部材104とロア部材105間に挟持される円板袋状のフィルタ部材107とを備えている。そして、アッパー部材104とロア部材105とがフィルタ部材107の外周縁を挟持した状態で結合機構120により周方向の複数個所で結合されている。 As shown in FIG. 9, the fuel storage container 103 includes a container-shaped upper member 104 having a lower opening 104h, a lid-shaped lower member 105 that covers the lower opening 104h of the upper member 104, and the upper member 104 and the lower member. 105 and a disc-shaped filter member 107 sandwiched between the filter members 105 and 105. The upper member 104 and the lower member 105 are coupled at a plurality of locations in the circumferential direction by a coupling mechanism 120 with the outer peripheral edge of the filter member 107 sandwiched therebetween.

結合機構120は、図9に示すように、ロア部材105の外周縁から上方に張り出すように設けられた被係合部126と、アッパー部材104の外周縁から下方に張り出すように設けられ、撓み変形可能な構成でロア部材105の被係合部126と係合可能に構成された係合部123とを備えている。アッパー部材104の係合部123は、ロア部材105の被係合部126に対して径方向外側に配置されている。そして、アッパー部材104の係合部123は、そのアッパー部材104とロア部材105とが軸方向(上下方向)に相対移動することで、径方向外側に撓み変形しながらロア部材105の被係合部126に対して径方向外側から係合するようになる。 As shown in FIG. 9, the coupling mechanism 120 includes an engaged portion 126 provided to project upward from the outer peripheral edge of the lower member 105, and an engaged portion 126 provided to project downward from the outer peripheral edge of the upper member 104. , an engaging portion 123 configured to be flexibly deformable and capable of engaging with an engaged portion 126 of the lower member 105. The engaging portion 123 of the upper member 104 is arranged radially outward with respect to the engaged portion 126 of the lower member 105. When the upper member 104 and the lower member 105 move relative to each other in the axial direction (vertical direction), the engaging portion 123 of the upper member 104 is bent and deformed outward in the radial direction and is engaged with the lower member 105. It comes to engage with the portion 126 from the outside in the radial direction.

特開2021-011852号公報Japanese Patent Application Publication No. 2021-011852

特許文献1における燃料貯留容器103の結合機構120では、図9に示すように、アッパー部材104の外周縁から下方に張り出して撓み変形可能な係合部123がロア部材105の被係合部126に対して径方向外側に配置されている。このため、アッパー部材104の係合部123とロア部材105の被係合部126とが係合している状態では、アッパー部材104の係合部123の先端エッジ部(下端エッジ部)は、下向きの状態で露出している。したがって、例えば、燃料供給装置100を燃料タンク110の開口113(図8参照)から燃料タンク110内に挿入する際、燃料貯留容器103におけるアッパー部材104の係合部123の先端エッジ部が燃料タンク110の開口113縁に当接して引っ掛かることがある。これにより、図9の二点鎖線に示すように、アッパー部材104の係合部123が径方向外側に広がり、ロア部材105の被係合部126との係合が解除されることが考えられる。 In the coupling mechanism 120 of the fuel storage container 103 in Patent Document 1, as shown in FIG. It is arranged radially outward. Therefore, when the engaging portion 123 of the upper member 104 and the engaged portion 126 of the lower member 105 are engaged, the tip edge portion (lower edge portion) of the engaging portion 123 of the upper member 104 is It is exposed in a downward position. Therefore, for example, when inserting the fuel supply device 100 into the fuel tank 110 from the opening 113 of the fuel tank 110 (see FIG. 8), the tip edge portion of the engaging portion 123 of the upper member 104 in the fuel storage container 103 is inserted into the fuel tank 110. It may come into contact with the edge of the opening 113 of 110 and get caught. As a result, as shown by the two-dot chain line in FIG. 9, the engaging portion 123 of the upper member 104 expands radially outward, and the engagement with the engaged portion 126 of the lower member 105 is considered to be released. .

本発明は、上記問題点を解決するためになされたものであり、本発明が解決しようとする課題は、燃料貯留容器を燃料タンクの開口から燃料タンク内に挿入する際、当接、あるいは引っ掛かり等により結合機構の結合が解除されないようにすることである。 The present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is that when the fuel storage container is inserted into the fuel tank from the opening of the fuel tank, it may come into contact with or get caught. The purpose is to prevent the coupling mechanism from being disconnected due to such reasons.

上記した課題は、各発明によって解決される。第1の発明は、下側に開口を有する容器状のアッパー部材と、前記アッパー部材の開口を覆うロア部材と、前記開口を覆っており、前記アッパー部材と前記ロア部材間に挟持されるフィルタ部材と、前記アッパー部材と前記ロア部材とを結合する結合機構とを備え、前記アッパー部材と前記フィルタ部材とにより囲まれた領域に燃料を貯留可能な燃料貯留容器であって、前記結合機構は、前記アッパー部材の外周縁に設けられた複数の被係合部と、前記ロア部材の外周縁に複数設けられ、前記アッパー部材の複数の被係合部とそれぞれ係合可能に構成された係合部とを有しており、前記ロア部材の前記係合部は、前記アッパー部材の被係合部に対して径方向外側に配置されており、前記被係合部に対して径方向外側から係合可能に構成されている。 The above problems are solved by each invention. A first invention provides a container-shaped upper member having an opening on the lower side, a lower member that covers the opening of the upper member, and a filter that covers the opening and is sandwiched between the upper member and the lower member. A fuel storage container comprising a member and a coupling mechanism coupling the upper member and the lower member, and capable of storing fuel in an area surrounded by the upper member and the filter member, the coupling mechanism comprising: , a plurality of engaged portions provided on the outer periphery of the upper member; and a plurality of engagement portions provided on the outer periphery of the lower member and configured to be able to engage with the plurality of engaged portions of the upper member, respectively. The engaging portion of the lower member is disposed radially outward with respect to the engaged portion of the upper member, and the engaging portion of the lower member is disposed radially outward with respect to the engaged portion. It is configured so that it can be engaged from the

本発明によると、ロア部材の係合部は、アッパー部材の被係合部に対して径方向外側に配置されている。そして、係合部は、被係合部に対して径方向外側から係合可能に構成されている。即ち、ロア部材の係合部は、アッパー部材の被係合部に対して下側、及び径方向外側から被せられた状態で係合する。このため、ロア部材の係合部の先端エッジ部は上向きの状態で露出するようになる。これにより、例えば、燃料貯留容器を燃料タンクの開口から燃料タンク内に挿入する場合、ロア部材の係合部の下端等が燃料タンクの開口縁に当接しても、ロア部材の係合部とアッパー部材の被係合部との係合状態に影響がなく、両者の係合が解除されるような不具合がない。 According to the present invention, the engaging portion of the lower member is disposed radially outward with respect to the engaged portion of the upper member. The engaging portion is configured to be able to engage with the engaged portion from the outside in the radial direction. That is, the engaging portion of the lower member engages with the engaged portion of the upper member in a state where it is covered from below and from the outside in the radial direction. Therefore, the leading edge portion of the engaging portion of the lower member is exposed upward. As a result, for example, when inserting the fuel storage container into the fuel tank through the opening of the fuel tank, even if the lower end of the engaging portion of the lower member comes into contact with the edge of the opening of the fuel tank, the engaging portion of the lower member This does not affect the state of engagement of the upper member with the engaged portion, and there is no problem that the engagement between the two may be released.

第2の発明によると、ロア部材の係合部は撓み変形可能な構成であり、前記係合部は、アッパー部材とロア部材とが軸方向に相対移動することで、径方向外側に撓み変形しながら被係合部と係合可能に構成されている。 According to the second invention, the engaging portion of the lower member is configured to be flexibly deformable, and the engaging portion is flexibly deformed radially outward due to relative movement of the upper member and the lower member in the axial direction. It is configured such that it can be engaged with the engaged portion.

第3の発明によると、ロア部材の係合部は、ロア部材の外周縁から軸方向に張り出す板部と、その板部の先端で径方向内側に突出する爪部とを備えており、アッパー部材の被係合部は、前記ロア部材の係合部の板部が径方向外側から重なるように形成された受け部と、前記ロア部材の係合部の爪部が係合可能なように、前記受け部に形成された爪用開口とから構成されている。 According to the third invention, the engagement portion of the lower member includes a plate portion that extends in the axial direction from the outer peripheral edge of the lower member, and a claw portion that projects inward in the radial direction at the tip of the plate portion, The engaged portion of the upper member is configured such that the plate portion of the engaging portion of the lower member can engage with a receiving portion formed such that the plate portion of the engaging portion of the lower member overlaps from the outside in the radial direction, and the claw portion of the engaging portion of the lower member. and a claw opening formed in the receiving portion.

即ち、ロア部材の係合部の板部は、アッパー部材の被係合部の受け部の径方向外側に配置され、ロア部材の係合部の爪部は、板部の先端で径方向内側に突出するように形成されている。このため、ロア部材の係合部の板部の位置がロア部材の外周縁とともに燃料貯留容器における最大外径部位となる。ここで、燃料貯留容器の最大外径部位の外径寸法は、一般的に燃料タンクの開口を通過可能な最大寸法に設定される。そして、ロア部材の複数の係合部の板部等の内側には、フィルタ部材がセットされる。このため、フィルタ部材の外径寸法は複数の板部等の内径寸法とほぼ等しい値に設定される。このように、フィルタ部材の外径寸法を制約寸法内で極力大きくでき、この結果、フィルタ部材のろ過面積も極力大きくできる。 That is, the plate part of the engaging part of the lower member is arranged radially outward of the receiving part of the engaged part of the upper member, and the claw part of the engaging part of the lower member is arranged radially inwardly at the tip of the plate part. It is formed to protrude. Therefore, the position of the plate portion of the engaging portion of the lower member, together with the outer peripheral edge of the lower member, becomes the maximum outer diameter portion of the fuel storage container. Here, the outer diameter dimension of the maximum outer diameter portion of the fuel storage container is generally set to the maximum dimension that can pass through the opening of the fuel tank. A filter member is set inside the plate portions of the plurality of engaging portions of the lower member. For this reason, the outer diameter of the filter member is set to a value approximately equal to the inner diameter of the plurality of plate parts and the like. In this way, the outer diameter of the filter member can be made as large as possible within the constraint dimensions, and as a result, the filtration area of the filter member can also be made as large as possible.

第4の発明によると、フィルタ部材は、燃料をろ過するフィルタ本体部と、そのフィルタ本体部を囲む環状に形成されて、アッパー部材とロア部材間に挟持される被挟持部と、その被挟持部よりも径方向外側に位置しているフィルタ外周縁とを備えており、前記ロア部材の係合部の爪部と前記アッパー部材の被係合部の爪用開口との係合部分は、前記フィルタ部材に対して軸方向に位置ずれしており、さらに、前記係合部分は、前記フィルタ部材の前記フィルタ外周縁と平面視において重なる位置に設けられている。 According to the fourth invention, the filter member includes a filter body that filters fuel, a sandwiched part that is formed in an annular shape surrounding the filter body and is sandwiched between an upper member and a lower member, and a sandwiched part that is sandwiched between an upper member and a lower member. an outer peripheral edge of the filter located radially outward than the upper member; The engaging portion is axially displaced with respect to the filter member, and furthermore, the engaging portion is provided at a position overlapping the filter outer peripheral edge of the filter member in a plan view.

第5の発明によると、ロア部材における複数の係合部の板部の内径寸法は、フィルタ部材の外径寸法とほぼ等しい値に設定されている。 According to the fifth invention, the inner diameter of the plate portions of the plurality of engaging portions in the lower member is set to a value approximately equal to the outer diameter of the filter member.

第6の発明によると、アッパー部材の被係合部には、ロア部材の係合部の爪部がそのアッパー部材の被係合部の爪用開口と係合した状態で、前記ロア部材の係合部の板部の先端を軸方向から覆う凸部が設けられている。このため、例えば、燃料貯留容器を燃料タンクの開口から燃料タンク外に取り出す場合等、凸部の働きで、上向きの状態で露出しているロア部材の係合部の先端エッジ部が燃料タンクの開口縁に直接当接することがない。したがって、燃料貯留容器を燃料タンクの開口から燃料タンク外に取り出す際、結合機構の結合が解除されるような不具合がない。 According to the sixth invention, the engaged portion of the upper member has the claw portion of the engaging portion of the lower member engaged with the claw opening of the engaged portion of the upper member. A convex portion is provided to cover the tip of the plate portion of the engaging portion from the axial direction. For this reason, when the fuel storage container is taken out of the fuel tank from the opening of the fuel tank, for example, the protrusion will cause the tip edge of the engaging part of the lower member exposed upwards to move into the fuel tank. There is no direct contact with the edge of the opening. Therefore, when the fuel storage container is taken out of the fuel tank from the opening of the fuel tank, there is no problem in which the coupling mechanism is disconnected.

本発明によると、燃料貯留容器を燃料タンクの開口から燃料タンク内に挿入する際、接触等により、結合機構の結合が解除されるようなことがない。 According to the present invention, when the fuel storage container is inserted into the fuel tank through the opening of the fuel tank, there is no possibility that the coupling mechanism will be disconnected due to contact or the like.

本発明の実施形態1に係る燃料貯留容器(サブタンク)を備える燃料供給装置の背面図である。1 is a rear view of a fuel supply device including a fuel storage container (sub-tank) according to Embodiment 1 of the present invention. 前記燃料供給装置のポンプユニットの縦断面図である。FIG. 3 is a longitudinal sectional view of the pump unit of the fuel supply device. 図2のIII部拡大図である。FIG. 3 is an enlarged view of part III in FIG. 2; 前記サブタンクを分解して示す斜視図である。FIG. 3 is an exploded perspective view of the sub-tank. 前記サブタンクの結合機構を表す斜視図である。FIG. 3 is a perspective view showing a coupling mechanism of the sub-tank. 前記サブタンクの結合機構の縦断面図である(図2のVI矢視縦断面図)。FIG. 3 is a vertical cross-sectional view of the coupling mechanism of the sub-tank (a vertical cross-sectional view taken in the direction of the VI arrow in FIG. 2). 前記燃料供給装置とエンジンの燃料噴射装置との関係を表す配管系統図である。It is a piping system diagram showing the relationship between the fuel supply device and the fuel injection device of the engine. 従来の燃料供給装置の背面図である。FIG. 2 is a rear view of a conventional fuel supply device. 従来の燃料貯留容器(サブタンク)の結合機構を表す縦断面図である。FIG. 2 is a vertical cross-sectional view showing a coupling mechanism of a conventional fuel storage container (sub-tank).

〔実施形態1〕
以下、図1~図7に基づいて、本発明の実施形態1に係る燃料貯留容器について説明する。本実施形態に係る燃料貯留容器は、車両の燃料タンクT内に設置される燃料供給装置10に使用されている。ここで、図1中に示す上下左右は、燃料タンクTにおける上下左右に対応している。
[Embodiment 1]
Hereinafter, a fuel storage container according to Embodiment 1 of the present invention will be described based on FIGS. 1 to 7. The fuel storage container according to this embodiment is used in a fuel supply device 10 installed in a fuel tank T of a vehicle. Here, the vertical and horizontal directions shown in FIG. 1 correspond to the vertical and horizontal directions of the fuel tank T.

<燃料供給装置10の概要について>
燃料供給装置10は、図7の配管系統図に示すように、燃料タンクT内の燃料をエンジンの燃料噴射装置18に圧送する装置である。燃料供給装置10とエンジンの燃料噴射装置18とは、燃料供給配管13により接続されている。燃料供給装置10は、図1に示すように、燃料タンクTの上部開口Thを塞ぐ蓋部材20と、燃料タンクTの底部に設置されるポンプユニット30とから構成されている。そして、ポンプユニット30のハウジングが燃料を貯留可能な燃料貯留容器300(以下、サブタンク300という)となっている。
<About the overview of the fuel supply device 10>
The fuel supply device 10, as shown in the piping diagram of FIG. 7, is a device that pressure-feeds the fuel in the fuel tank T to the fuel injection device 18 of the engine. The fuel supply device 10 and the engine fuel injection device 18 are connected by a fuel supply pipe 13. The fuel supply device 10 includes a lid member 20 that closes the upper opening Th of the fuel tank T, and a pump unit 30 installed at the bottom of the fuel tank T, as shown in FIG. The housing of the pump unit 30 serves as a fuel storage container 300 (hereinafter referred to as a sub-tank 300) capable of storing fuel.

<燃料供給装置10の蓋部材20について>
蓋部材20は、図1に示すように、円板状の蓋板22を備えており、その蓋板22の上面側に燃料吐出ポート23が設けられている。そして、燃料吐出ポート23に対し、図7に示す燃料供給配管13の一端が接続されている。また、蓋板22の上面側には、電気用コネクタ24と、キャニスタ(蒸発燃料処理装置)用の配管接続ポート25と、空気抜き用のブリーザパイプ(図示省略)等とが設けられている。
<About the lid member 20 of the fuel supply device 10>
As shown in FIG. 1, the lid member 20 includes a disc-shaped lid plate 22, and a fuel discharge port 23 is provided on the upper surface side of the lid plate 22. One end of the fuel supply pipe 13 shown in FIG. 7 is connected to the fuel discharge port 23. Further, on the upper surface side of the cover plate 22, an electrical connector 24, a piping connection port 25 for a canister (evaporated fuel processing device), a breather pipe for air venting (not shown), etc. are provided.

蓋部材20の蓋板22の下面側には、図1に示すように、バネ力によりポンプユニット30を下方に押圧し、ポンプユニット30を所定位置で燃料タンクTの底面に接触させた状態に保持するスタンドオフ部28が設けられている。スタンドオフ部28は、上下方向に延びる垂下筒部28t(図1の点線参照)と、その垂下筒部28tを側面側から覆って補強する略三角板状の湾曲壁部28wとを備えている。そして、スタンドオフ部28の垂下筒部28tに対してポンプユニット30に設けられた筒柱部31が上下方向に相対移動可能な状態で挿入されている。 As shown in FIG. 1, on the lower surface side of the lid plate 22 of the lid member 20, there is provided a spring force that presses the pump unit 30 downward to bring the pump unit 30 into contact with the bottom surface of the fuel tank T at a predetermined position. A standoff portion 28 for holding is provided. The standoff portion 28 includes a vertically extending hanging tube portion 28t (see the dotted line in FIG. 1), and a substantially triangular plate-shaped curved wall portion 28w that covers and reinforces the hanging tube portion 28t from the side. The cylindrical column part 31 provided on the pump unit 30 is inserted into the hanging cylinder part 28t of the standoff part 28 so as to be relatively movable in the vertical direction.

<燃料供給装置10のポンプユニット30について>
ポンプユニット30は、燃料を圧送する部分であり、図2等に示すように、ポンプユニット30のハウジングを構成するサブタンク300と、サブタンク300内に収納される燃料ポンプ32、圧力調整弁40、燃料フィルタ340を備えている。さらに、サブタンク300の外側には、燃料タンクT内の燃料レベルを検出する燃料レベルゲージ(図示省略)が設けられている。燃料ポンプ32は、図2に示すように、モータ部32mとポンプ部32pとを備えており、ポンプ部32pの燃料入口(図示省略)から吸引した燃料をモータ部32mの上端の吐出ポート32zから吐出できるように構成されている。圧力調整弁40は、燃料ポンプ32の吐出ポート32zから吐出された燃料圧力を調整できるように構成されている。
<About the pump unit 30 of the fuel supply device 10>
The pump unit 30 is a part that pumps fuel, and as shown in FIG. A filter 340 is provided. Furthermore, a fuel level gauge (not shown) for detecting the fuel level in the fuel tank T is provided outside the sub-tank 300. As shown in FIG. 2, the fuel pump 32 includes a motor section 32m and a pump section 32p, and the fuel sucked from the fuel inlet (not shown) of the pump section 32p is transferred from the discharge port 32z at the upper end of the motor section 32m. It is configured so that it can be discharged. The pressure regulating valve 40 is configured to be able to regulate the pressure of the fuel discharged from the discharge port 32z of the fuel pump 32.

<ポンプユニット30のサブタンク300について>
サブタンク300は、燃料貯留容器であり、図2~図4に示すように、下側に開口313を有するサブタンク本体310と、そのサブタンク本体310の開口313を覆えるように構成されたロアカバー350とを備えている。そして、図2に示すように、燃料フィルタ340がサブタンク本体310の開口313を覆った状態で、その燃料フィルタ340の外周縁がサブタンク本体310とロアカバー350との間で挟持されている。即ち、サブタンク本体310と燃料フィルタ340とに囲まれた領域に燃料が貯留されるようになる。また、サブタンク300には、燃料フィルタ340を挟持した状態のサブタンク本体310の外周縁とロアカバー350の外周縁とを結合させる結合機構370が周方向に等間隔で4セット設けられている。
<About the sub tank 300 of the pump unit 30>
The sub-tank 300 is a fuel storage container, and as shown in FIGS. 2 to 4, it includes a sub-tank main body 310 having an opening 313 on the lower side, and a lower cover 350 configured to cover the opening 313 of the sub-tank main body 310. It is equipped with As shown in FIG. 2, the outer periphery of the fuel filter 340 is held between the sub-tank body 310 and the lower cover 350 with the fuel filter 340 covering the opening 313 of the sub-tank body 310. That is, fuel is stored in an area surrounded by the sub-tank body 310 and the fuel filter 340. Further, the sub-tank 300 is provided with four sets of coupling mechanisms 370 arranged at equal intervals in the circumferential direction to couple the outer circumferential edge of the sub-tank body 310 with the fuel filter 340 sandwiched therebetween and the outer circumferential edge of the lower cover 350.

<サブタンク本体310について>
サブタンク本体310は、図2に示すように、タンク形成部312とポンプケース部322とレギュレータケース部324と燃料供給通路230とを備えている。タンク形成部312は、有天円筒状に形成されている。タンク形成部312の下側の開口313の周縁には、径方向外側に張り出すフランジ部314が設けられており、そのフランジ部314が、図3、図4に示すように、段付部314yと脚壁部314wとにより断面逆L字形に形成されている。ここで、フランジ部314の脚壁部314wの内径寸法は、図2等に示すように、燃料フィルタ340の外径寸法とほぼ等しい値に設定されている。ここで、タンク形成部312のフランジ部314(脚壁部314w)の外径寸法は、燃料タンクTの上部開口Thを通過できる最大径寸法に設定されている。また、タンク形成部312の下側の開口313の周縁には、図3、図4に示すように、フランジ部314の径方向内側端から下方に突出するフィルタ挟持壁部315が環状に形成されている。さらに、タンク形成部312の下側の開口313の周縁には、図4に示すように、結合機構370の被係合部370u(後記する)が周方向に等間隔で4か所に設けられている。
<About the sub tank body 310>
As shown in FIG. 2, the sub-tank main body 310 includes a tank forming portion 312, a pump case portion 322, a regulator case portion 324, and a fuel supply passage 230. The tank forming portion 312 is formed into a cylindrical shape. A flange portion 314 projecting outward in the radial direction is provided at the periphery of the opening 313 on the lower side of the tank forming portion 312, and the flange portion 314 is formed into a stepped portion 314y as shown in FIGS. 3 and 4. and the leg wall portion 314w form an inverted L-shape in cross section. Here, the inner diameter of the leg wall portion 314w of the flange portion 314 is set to a value approximately equal to the outer diameter of the fuel filter 340, as shown in FIG. 2 and the like. Here, the outer diameter of the flange portion 314 (leg wall portion 314w) of the tank forming portion 312 is set to the maximum diameter that allows it to pass through the upper opening Th of the fuel tank T. Further, as shown in FIGS. 3 and 4, a filter holding wall portion 315 is formed in an annular shape around the lower opening 313 of the tank forming portion 312 and protrudes downward from the radially inner end of the flange portion 314. ing. Further, on the periphery of the opening 313 on the lower side of the tank forming portion 312, engaged portions 370u (described later) of the coupling mechanism 370 are provided at four equal intervals in the circumferential direction, as shown in FIG. ing.

サブタンク本体310のポンプケース部322は、図2に示すように、燃料ポンプ32のモータ部32mを収納する部分であり、有天円筒状に形成されている。そして、ポンプケース部322の上部がタンク形成部312から上方に突出しており、ポンプケース部322の下端開口(図番省略)がタンク形成部312の内部空間内に位置している。ポンプケース部322には、下方から燃料ポンプ32のモータ部32mが挿入されており、燃料ポンプ32のポンプ部32pはポンプケース部322から下方に突出している。そして、燃料ポンプ32のポンプ部32pが燃料フィルタ340の中央接続部材342(図4参照)を介して袋状の燃料フィルタ340のフィルタ本体部341に接続されている。 As shown in FIG. 2, the pump case portion 322 of the sub-tank body 310 is a portion that accommodates the motor portion 32m of the fuel pump 32, and is formed in a cylindrical shape. The upper part of the pump case part 322 protrudes upward from the tank forming part 312, and the lower end opening (not shown) of the pump case part 322 is located within the internal space of the tank forming part 312. A motor section 32m of the fuel pump 32 is inserted into the pump case section 322 from below, and a pump section 32p of the fuel pump 32 projects downward from the pump case section 322. The pump portion 32p of the fuel pump 32 is connected to the filter body portion 341 of the bag-shaped fuel filter 340 via the central connection member 342 (see FIG. 4) of the fuel filter 340.

サブタンク本体310のレギュレータケース部324は、図2に示すように、ポンプケース部322と横並び状態で配置されている。レギュレータケース部324は略円筒状に形成されており、そのレギュレータケース部324に圧力調整弁40が収納されている。 As shown in FIG. 2, the regulator case section 324 of the sub-tank main body 310 is arranged side by side with the pump case section 322. The regulator case portion 324 is formed into a substantially cylindrical shape, and the pressure regulating valve 40 is housed in the regulator case portion 324.

サブタンク本体310の上部には、図2に示すように、燃料供給通路230が形成されている。燃料供給通路230の入口部231は、下側に折り曲げられた状態でポンプケース部322の上端位置に設けられている。そして、燃料供給通路230の入口部231に対して燃料ポンプ32(モータ部32m)の上端に形成された吐出ポート32zが接続されている。燃料供給通路230の入口部231の下流側(上側)には、逆流防止部材231vが設けられている。燃料供給通路230の逆流防止部材231vの下流側は、横通路と縦通路とにより側面略逆L字形に形成されている。そして、燃料供給通路230の縦通路の部分にレギュレータケース部324と連通する連通路233が接続されている。また、燃料供給通路230の縦通路の側面に出口部232が横向きに形成されている。燃料供給通路230の出口部232には、連結チューブ(図示省略 図1の2点鎖線参照)の一端が接続されており、前記連結チューブの他端が蓋部材20の燃料吐出ポート23に接続されている。 As shown in FIG. 2, a fuel supply passage 230 is formed in the upper part of the sub-tank body 310. The inlet portion 231 of the fuel supply passage 230 is bent downward and provided at the upper end of the pump case portion 322 . A discharge port 32z formed at the upper end of the fuel pump 32 (motor section 32m) is connected to the inlet section 231 of the fuel supply passage 230. A backflow prevention member 231v is provided downstream (above) the inlet portion 231 of the fuel supply passage 230. The downstream side of the backflow prevention member 231v of the fuel supply passage 230 is formed into a substantially inverted L-shape on the side by a horizontal passage and a vertical passage. A communication passage 233 communicating with the regulator case portion 324 is connected to a vertical passage portion of the fuel supply passage 230. Furthermore, an outlet portion 232 is formed laterally on the side surface of the vertical passage of the fuel supply passage 230. One end of a connecting tube (not shown; see two-dot chain line in FIG. 1) is connected to the outlet portion 232 of the fuel supply passage 230, and the other end of the connecting tube is connected to the fuel discharge port 23 of the lid member 20. ing.

<ロアカバー350について>
ロアカバー350は、図2~図4に示すように、燃料フィルタ340を下方から支える蓋状部材であり、格子状の底板部351を有する円形浅皿状に形成されている。ロアカバー350の底板部351の周縁には、図3、図4に示すように、サブタンク本体310(タンク形成部312)のフィルタ挟持壁部315に対応する位置に環状のフィルタ挟持壁部353が上方に突出するように形成されている。さらに、ロアカバー350のフィルタ挟持壁部353の径方向外側には、上方に向かって拡開するように形成されたテーパ部355が設けられている。テーパ部355は、燃料フィルタ340のフィルタ外周縁346を下方から覆うとともに、そのテーパ部355の外周縁がサブタンク本体310のフランジ部314の脚壁部314wに下方から合わせられる。即ち、ロアカバー350のテーパ部355の外径寸法がサブタンク本体310のフランジ部314の外径寸法と等しい値に設定されている。また、ロアカバー350の周縁には、サブタンク本体310(タンク形成部312)の被係合部370uに対応する位置に結合機構370の係合部370k(後記する)が周方向に等間隔で4か所に設けられている。
<About lower cover 350>
As shown in FIGS. 2 to 4, the lower cover 350 is a lid-like member that supports the fuel filter 340 from below, and is formed in the shape of a circular shallow dish having a lattice-like bottom plate portion 351. As shown in FIGS. 3 and 4, on the periphery of the bottom plate portion 351 of the lower cover 350, an annular filter holding wall portion 353 is provided upward at a position corresponding to the filter holding wall portion 315 of the sub-tank body 310 (tank forming portion 312). It is formed to protrude. Further, a tapered portion 355 is provided on the radially outer side of the filter holding wall portion 353 of the lower cover 350 so as to expand upward. The tapered portion 355 covers the filter outer peripheral edge 346 of the fuel filter 340 from below, and the outer peripheral edge of the tapered portion 355 is aligned with the leg wall portion 314w of the flange portion 314 of the sub-tank main body 310 from below. That is, the outer diameter of the tapered portion 355 of the lower cover 350 is set to be equal to the outer diameter of the flange portion 314 of the sub-tank body 310. Further, on the periphery of the lower cover 350, four engaging parts 370k (described later) of the coupling mechanism 370 are arranged at equal intervals in the circumferential direction at positions corresponding to the engaged parts 370u of the sub-tank body 310 (tank forming part 312). It is located at the location.

<燃料フィルタ340について>
燃料フィルタ340は、図4に示すように、外形が略円盤状に形成されており、燃料をろ過するフィルタ本体部341と、そのフィルタ本体部341よりも径方向外側に位置する被挟持部344と、その被挟持部344よりも径方向外側に位置するフィルタ外周縁346とから構成されている。そして、燃料フィルタ340の外径寸法が、図2等に示すように、サブタンク本体310のフランジ部314の脚壁部314w、及びロアカバー350のテーパ部355の外周縁の内径寸法とほぼ等しい値に設定されている。
<About the fuel filter 340>
As shown in FIG. 4, the fuel filter 340 has an approximately disk-shaped outer shape, and includes a filter main body 341 that filters fuel, and a sandwiched part 344 located radially outward from the filter main body 341. and a filter outer peripheral edge 346 located radially outside of the sandwiched portion 344. The outer diameter of the fuel filter 340 is approximately equal to the inner diameter of the leg wall 314w of the flange 314 of the sub-tank body 310 and the outer circumferential edge of the tapered portion 355 of the lower cover 350, as shown in FIG. It is set.

燃料フィルタ340のフィルタ本体部341は、中空袋状に形成されており、そのフィルタ本体部341の上面側に燃料ポンプ32のポンプ部32pが接続される中央接続部材342が設けられている。即ち、燃料ポンプ32のポンプ部32pがフィルタ本体部341の中央接続部材342に接続されることで、ポンプ部32pの燃料入口がフィルタ本体部341の袋内空間と連通するようになる。これにより、燃料ポンプ32のポンプ部32pは、燃料フィルタ340を通過した燃料タンクT内の燃料とサブタンク300内の燃料とを吸引できるようになる。 The filter main body 341 of the fuel filter 340 is formed in the shape of a hollow bag, and a central connecting member 342 to which the pump portion 32p of the fuel pump 32 is connected is provided on the upper surface side of the filter main body 341. That is, by connecting the pump section 32p of the fuel pump 32 to the central connection member 342 of the filter main body 341, the fuel inlet of the pump section 32p comes to communicate with the inner bag space of the filter main body 341. Thereby, the pump portion 32p of the fuel pump 32 can suck the fuel in the fuel tank T that has passed through the fuel filter 340 and the fuel in the sub-tank 300.

燃料フィルタ340の被挟持部344は、図2、図3に示すように、サブタンク本体310(タンク形成部312)のフィルタ挟持壁部315とロアカバー350のフィルタ挟持壁部353とに上下から挟持される部分である。被挟持部344は、フィルタ本体部341を囲む環状に形成されている。燃料フィルタ340のフィルタ外周縁346は、サブタンク本体310とロアカバー350とに水平に支持されることで、被挟持部344の挟持安定性を図っている。 As shown in FIGS. 2 and 3, the sandwiched part 344 of the fuel filter 340 is sandwiched from above and below between the filter clamping wall part 315 of the sub-tank body 310 (tank forming part 312) and the filter clamping wall part 353 of the lower cover 350. This is the part that The pinched portion 344 is formed in an annular shape surrounding the filter main body portion 341. The filter outer periphery 346 of the fuel filter 340 is supported horizontally by the sub-tank body 310 and the lower cover 350, thereby ensuring stability in holding the part to be held 344.

<結合機構370について>
結合機構370は、上記したように、燃料フィルタ340を挟持した状態のサブタンク本体310とロアカバー350とを結合させる機構である。結合機構370は、サブタンク本体310側の被係合部370uとロアカバー350側の係合部370kとから構成されている。サブタンク本体310のフランジ部314には、図4、図5等に示すように、周方向に一定寸法だけ切り欠かれた切り欠き凹部314cが周方向に4ケ所形成されている。結合機構370の被係合部370uは、切り欠き凹部314cに対応する位置に形成されている。
<About the coupling mechanism 370>
As described above, the coupling mechanism 370 is a mechanism for coupling the sub-tank body 310 with the fuel filter 340 sandwiched therebetween and the lower cover 350. The coupling mechanism 370 includes an engaged portion 370u on the sub-tank main body 310 side and an engaging portion 370k on the lower cover 350 side. As shown in FIGS. 4, 5, etc., the flange portion 314 of the sub-tank body 310 has four notched recesses 314c cut out by a certain dimension in the circumferential direction. The engaged portion 370u of the coupling mechanism 370 is formed at a position corresponding to the notch recess 314c.

サブタンク本体310の被係合部370uは、図4、図5等に示すように、切り欠き凹部314cよりも若干高い位置でサブタンク本体310(タンク形成部312)の外周面から径方向外側に突出する箱形ブロック状の受け部372を備えている。受け部372は、図6に示すように、燃料フィルタ340のフィルタ外周縁346の真上位置に配置されている。受け部372の外周面は、ロアカバー350側の係合部370kが重なる受け面372fとなっており、その受け面372fの外径寸法が燃料フィルタ340の外径寸法とほぼ等しい値に設定されている。 As shown in FIGS. 4, 5, etc., the engaged portion 370u of the sub-tank body 310 protrudes radially outward from the outer peripheral surface of the sub-tank body 310 (tank forming portion 312) at a position slightly higher than the notch recess 314c. A box-shaped block-shaped receiving portion 372 is provided. As shown in FIG. 6, the receiving portion 372 is located directly above the filter outer peripheral edge 346 of the fuel filter 340. The outer circumferential surface of the receiving portion 372 is a receiving surface 372f on which the engaging portion 370k on the lower cover 350 side overlaps, and the outer diameter of the receiving surface 372f is set to a value approximately equal to the outer diameter of the fuel filter 340. There is.

受け部372の受け面372fには、図4、及び図6に示すように、中央位置にロアカバー350の係合部370kの爪部377が係合可能に構成された爪用開口372hが形成されている。さらに、受け部372の爪用開口372hの下辺位置には、係合部370kの爪部377を下側から受ける爪受け突起373が形成されている。また、受け部372の受け面372fの上端位置には、図5等に示すように、係合部370kの上端(前端)を上方から覆う一対の凸部374が形成されている。 As shown in FIGS. 4 and 6, the receiving surface 372f of the receiving portion 372 has a claw opening 372h configured to be engageable with the claw portion 377 of the engaging portion 370k of the lower cover 350 at a central position. ing. Further, a claw receiving protrusion 373 is formed at the lower side of the claw opening 372h of the receiving portion 372 to receive the claw portion 377 of the engaging portion 370k from below. Further, at the upper end position of the receiving surface 372f of the receiving portion 372, a pair of convex portions 374 are formed to cover the upper end (front end) of the engaging portion 370k from above, as shown in FIG.

ロアカバー350の係合部370kは、図4~図6に示すように、ロアカバー350のテーパ部355の外周縁から軸方向(上方向)に張り出す板部375と、その板部375の先端で径方向内側に突出する爪部377とを備えている。このように、係合部370kの板部375は、ロアカバー350のテーパ部355の外周縁から軸方向(上方向)に張り出しているため、係合部370kの板部375の外径寸法は、ロアカバー350のテーパ部355の外径寸法と等しい値になる。ロアカバー350の係合部370kは、サブタンク本体310の被係合部370uに対して径方向外側に配置されており、対応する被係合部370uに対して径方向外側から係合するように構成されている。そして、ロアカバー350の係合部370kがサブタンク本体310の被係合部370uと係合した状態で、図6に示すように、係合部370kの板部375は被係合部370uの受け部372の受け面372fに対して径方向外側から重なるようになる。 As shown in FIGS. 4 to 6, the engaging portion 370k of the lower cover 350 includes a plate portion 375 that extends in the axial direction (upward direction) from the outer peripheral edge of the tapered portion 355 of the lower cover 350, and a distal end of the plate portion 375. A claw portion 377 that projects inward in the radial direction is provided. In this way, the plate portion 375 of the engaging portion 370k protrudes in the axial direction (upward direction) from the outer peripheral edge of the tapered portion 355 of the lower cover 350, so the outer diameter dimension of the plate portion 375 of the engaging portion 370k is This value is equal to the outer diameter dimension of the tapered portion 355 of the lower cover 350. The engaging portion 370k of the lower cover 350 is arranged radially outward with respect to the engaged portion 370u of the sub-tank main body 310, and is configured to engage with the corresponding engaged portion 370u from the radial outside. has been done. Then, when the engaging portion 370k of the lower cover 350 is engaged with the engaged portion 370u of the sub-tank main body 310, as shown in FIG. 372 from the outside in the radial direction.

ロアカバー350の係合部370kの板部375は可撓性を有する帯板状に形成されており、中央位置にサブタンク本体310の被係合部370uの爪受け突起373が挿入可能な角形開口部375hが形成されている。ここで、ロアカバー350の係合部370kの板部375の内径寸法は、被係合部370uの受け面372fの外径寸法、及び燃料フィルタ340の外径寸法とほぼ等しい値に設定されている。したがって、ロアカバー350の係合部370kとサブタンク本体310の被係合部370uとが係合した状態で、爪部377と爪用開口372hの爪受け突起373とは燃料フィルタ340のフィルタ外周縁346の上方に配置される。そして、爪部377と爪用開口372hの爪受け突起373との係合部分は、燃料フィルタ340のフィルタ外周縁346と平面的に重なるようになる。 The plate portion 375 of the engaging portion 370k of the lower cover 350 is formed into a flexible band shape, and has a square opening at the center into which the claw receiving protrusion 373 of the engaged portion 370u of the sub-tank body 310 can be inserted. 375h is formed. Here, the inner diameter of the plate portion 375 of the engaging portion 370k of the lower cover 350 is set to a value approximately equal to the outer diameter of the receiving surface 372f of the engaged portion 370u and the outer diameter of the fuel filter 340. . Therefore, in a state in which the engaging portion 370k of the lower cover 350 and the engaged portion 370u of the sub-tank body 310 are engaged, the claw portion 377 and the claw receiving protrusion 373 of the claw opening 372h are connected to the filter outer peripheral edge 346 of the fuel filter 340. placed above. The engagement portion between the claw portion 377 and the claw receiving protrusion 373 of the claw opening 372h overlaps the filter outer peripheral edge 346 of the fuel filter 340 in a plan view.

<サブタンク300の組付けについて>
サブタンク300の組付けでは、サブタンク本体310のポンプケース部322に収納された燃料ポンプ32のポンプ部32pに対して燃料フィルタ340の中央接続部材342が接続される。この状態で、燃料フィルタ340のフィルタ外周縁346はサブタンク本体310のフランジ部314に収容され、サブタンク本体310の開口313は燃料フィルタ340によって覆われる。次に、サブタンク本体310の開口313、及び燃料フィルタ340を覆うようにロアカバー350をサブタンク本体310等と同軸に配置し、サブタンク本体310の被係合部370uとロアカバー350の係合部370kとを周方向において同位置に位置決めする。この状態で、サブタンク本体310とロアカバー350とを軸方向(上下方向)に相対移動させることで、ロアカバー350の係合部370kをサブタンク本体310の被係合部370uに係合させる。
<About assembling the sub tank 300>
When assembling the sub-tank 300, the central connecting member 342 of the fuel filter 340 is connected to the pump section 32p of the fuel pump 32 housed in the pump case section 322 of the sub-tank main body 310. In this state, the filter outer periphery 346 of the fuel filter 340 is accommodated in the flange portion 314 of the sub-tank body 310, and the opening 313 of the sub-tank body 310 is covered by the fuel filter 340. Next, the lower cover 350 is arranged coaxially with the sub-tank body 310 and the like so as to cover the opening 313 of the sub-tank body 310 and the fuel filter 340, and the engaged portion 370u of the sub-tank body 310 and the engaging portion 370k of the lower cover 350 are connected. Position at the same position in the circumferential direction. In this state, by relatively moving the sub-tank main body 310 and the lower cover 350 in the axial direction (vertical direction), the engaging portion 370k of the lower cover 350 is engaged with the engaged portion 370u of the sub-tank main body 310.

即ち、サブタンク本体310とロアカバー350とを軸方向(上下方向)に相対移動させることで、係合部370k(板部375)の爪部377の上傾斜面377s(図6参照)が被係合部370u(受け部372)の爪受け突起373の下傾斜面373sに下方から当接して上摺動する。これにより、爪部377を支える板部375が径方向外側に弾性変形して、爪部377が受け部372の爪受け突起373を乗り超えて上方に移動する。そして、図6に示すように、爪部377が板部375の弾性力により受け部372の爪用開口372hと係合するようになる。この状態で、ロアカバー350の係合部370kがサブタンク本体310の被係合部370uに係合されて、ロアカバー350がサブタンク本体310に結合される。即ち、サブタンク300の組付けが完了する。 That is, by relatively moving the sub-tank body 310 and the lower cover 350 in the axial direction (vertical direction), the upper inclined surface 377s (see FIG. 6) of the claw portion 377 of the engaging portion 370k (plate portion 375) is engaged. The portion 370u (receiving portion 372) comes into contact with the downwardly inclined surface 373s of the claw receiving protrusion 373 from below and slides upward. As a result, the plate portion 375 supporting the claw portion 377 is elastically deformed outward in the radial direction, and the claw portion 377 rides over the claw receiving protrusion 373 of the receiving portion 372 and moves upward. Then, as shown in FIG. 6, the claw portion 377 comes to engage with the claw opening 372h of the receiving portion 372 due to the elastic force of the plate portion 375. In this state, the engaging portion 370k of the lower cover 350 is engaged with the engaged portion 370u of the sub-tank main body 310, and the lower cover 350 is coupled to the sub-tank main body 310. That is, the assembly of the sub-tank 300 is completed.

ロアカバー350がサブタンク本体310に結合されると、図3、図6に示すように、燃料フィルタ340の被挟持部344がサブタンク本体310のフィルタ挟持壁部315とロアカバー350のフィルタ挟持壁部353とによって上下から挟持される。これにより、燃料フィルタ340のフィルタ本体部341の外周部がシールされる。そして、燃料フィルタ340のフィルタ外周縁346が、図3に示すように、サブタンク本体310のフランジ部314とロアカバー350のテーパ部355とにより形成される空間内に保持される。ここで、サブタンク300の最大外径部分であるサブタンク本体310のフランジ部314と、ロアカバー350のテーパ部355、及び係合部370kの板部375の外径寸法は、燃料タンクTの上部開口Thを通過できる最大径寸法に設定されている。このため、サブタンク本体310のフランジ部314と、ロアカバー350のテーパ部355、及び係合部370kの板部375により形成される空間内に保持される燃料フィルタ340の外径寸法を制約寸法内で極力大きくできる。このため、燃料フィルタ340のろ過面積を効率的に増加させられる。 When the lower cover 350 is coupled to the sub-tank body 310, as shown in FIGS. 3 and 6, the sandwiched part 344 of the fuel filter 340 is connected to the filter clamping wall part 315 of the sub-tank body 310 and the filter clamping wall part 353 of the lower cover 350. It is sandwiched from above and below by As a result, the outer periphery of the filter main body 341 of the fuel filter 340 is sealed. Then, the filter outer peripheral edge 346 of the fuel filter 340 is held within the space formed by the flange portion 314 of the sub-tank body 310 and the tapered portion 355 of the lower cover 350, as shown in FIG. Here, the outer diameter dimensions of the flange portion 314 of the sub-tank body 310, which is the maximum outer diameter portion of the sub-tank 300, the tapered portion 355 of the lower cover 350, and the plate portion 375 of the engaging portion 370k are the upper opening Th of the fuel tank T. is set to the maximum diameter that can pass through. Therefore, the outer diameter of the fuel filter 340 held in the space formed by the flange portion 314 of the sub-tank body 310, the tapered portion 355 of the lower cover 350, and the plate portion 375 of the engaging portion 370k is kept within the constraint dimensions. You can make it as big as possible. Therefore, the filtration area of the fuel filter 340 can be efficiently increased.

<実施形態1に係る用語と本発明に係る用語との対応>
本実施形態に係るサブタンク300が本発明の燃料貯留容器に相当する。また、本実施形態に係るサブタンク本体310が本発明のアッパー部材に相当し、ロアカバー350が本発明のロア部材に相当する。また、本発明の燃料フィルタ340が本発明のフィルタ部材に相当する。
<Correspondence between terms related to Embodiment 1 and terms related to the present invention>
The sub-tank 300 according to this embodiment corresponds to the fuel storage container of the present invention. Further, the sub-tank main body 310 according to the present embodiment corresponds to the upper member of the present invention, and the lower cover 350 corresponds to the lower member of the present invention. Moreover, the fuel filter 340 of the present invention corresponds to the filter member of the present invention.

<本実施形態に係るサブタンク300の長所について>
本実施形態に係るサブタンク300(燃料貯留容器)によると、ロアカバー350(ロア部材)の係合部370kは、サブタンク本体310(アッパー部材)の被係合部370uに対して径方向外側に配置されている。そして、係合部370kは、被係合部370uに対して径方向外側から係合可能に構成されている。即ち、ロアカバー350の係合部370kは、サブタンク本体310の被係合部370uに対して下側、及び径方向外側から被せられた状態で係合する。このため、ロアカバー350の係合部370kの先端エッジ部は上向きの状態で露出するようになる。これにより、例えば、サブタンク300を燃料タンクTの上部開口Thから燃料タンクT内に挿入する場合、ロアカバー350の係合部370kの下端等が燃料タンクTの開口縁に当接しても、ロアカバー350の係合部370kとサブタンク本体310の被係合部370uとの係合状態に影響がなく、両者の係合が解除されるような不具合がない。
<About the advantages of the sub tank 300 according to this embodiment>
According to the sub-tank 300 (fuel storage container) according to the present embodiment, the engaging portion 370k of the lower cover 350 (lower member) is arranged radially outward with respect to the engaged portion 370u of the sub-tank body 310 (upper member). ing. The engaging portion 370k is configured to be able to engage with the engaged portion 370u from the outside in the radial direction. That is, the engaging portion 370k of the lower cover 350 engages with the engaged portion 370u of the sub-tank main body 310 while being covered from below and from the outside in the radial direction. Therefore, the leading edge portion of the engaging portion 370k of the lower cover 350 is exposed upward. Thereby, for example, when inserting the sub-tank 300 into the fuel tank T from the upper opening Th of the fuel tank T, even if the lower end of the engaging portion 370k of the lower cover 350 comes into contact with the opening edge of the fuel tank T, the lower cover 350 This does not affect the state of engagement between the engaging portion 370k of the sub-tank body 310 and the engaged portion 370u of the sub-tank body 310, and there is no problem that the engagement between the two may be released.

また、ロアカバー350の係合部370kの板部375は、サブタンク本体310の被係合部370uの受け部372の径方向外側に配置され、ロアカバー350の係合部370kの爪部377は、板部375の先端で径方向内側に突出するように形成されている。このため、ロアカバー350の係合部370kの板部375の位置がロアカバー350の外周縁とともにサブタンク300における最大外径部位となる。ここで、サブタンク300の最大外径部位の外径寸法は、燃料タンクTの上部開口Thを通過可能な最大寸法に設定される。そして、ロアカバー350の複数の係合部370kの板部375等の内側には、燃料フィルタ340(フィルタ部材)がセットされる。このため、燃料フィルタ340の外径寸法は複数の板部375等の内径寸法とほぼ等しい値に設定される。このように、燃料フィルタ340の外径寸法を制約寸法内で極力大きくでき、この結果、燃料フィルタ340のろ過面積も極力大きくできる。 Further, the plate portion 375 of the engaging portion 370k of the lower cover 350 is arranged on the radially outer side of the receiving portion 372 of the engaged portion 370u of the sub-tank body 310, and the claw portion 377 of the engaging portion 370k of the lower cover 350 The tip of the portion 375 is formed to protrude inward in the radial direction. Therefore, the position of the plate portion 375 of the engaging portion 370k of the lower cover 350, together with the outer peripheral edge of the lower cover 350, becomes the maximum outer diameter portion of the sub-tank 300. Here, the outer diameter dimension of the maximum outer diameter portion of the sub-tank 300 is set to the maximum dimension that allows passage through the upper opening Th of the fuel tank T. A fuel filter 340 (filter member) is set inside the plate portions 375 and the like of the plurality of engaging portions 370k of the lower cover 350. Therefore, the outer diameter of the fuel filter 340 is set to a value that is approximately equal to the inner diameter of the plurality of plate portions 375 and the like. In this way, the outer diameter of the fuel filter 340 can be made as large as possible within the constraint dimensions, and as a result, the filtration area of the fuel filter 340 can also be made as large as possible.

また、サブタンク本体310の被係合部370uには、ロアカバー350の係合部370kの爪部377がその被係合部370uの爪用開口372hと係合した状態で、ロアカバー350の係合部370kの板部375の先端を上方(軸方向)から覆う凸部374が設けられている。このため、例えば、サブタンク300を燃料タンクTの上部開口Thから外に取り出す場合等、凸部374の働きで、上向きの状態で露出している係合部370kの板部375の先端エッジ部が燃料タンクTの開口縁に直接当接することがない。したがって、サブタンク300を燃料タンクTの上部開口Thから外に取り出す際、結合機構370の結合が解除されるような不具合がない。 Further, the engaged portion 370u of the sub-tank body 310 is provided with the claw portion 377 of the engaging portion 370k of the lower cover 350 engaged with the claw opening 372h of the engaged portion 370u. A convex portion 374 is provided to cover the tip of the 370k plate portion 375 from above (in the axial direction). Therefore, for example, when the sub-tank 300 is taken out from the upper opening Th of the fuel tank T, the tip edge of the plate portion 375 of the engaging portion 370k exposed in an upward direction is There is no direct contact with the opening edge of the fuel tank T. Therefore, when the sub-tank 300 is taken out from the upper opening Th of the fuel tank T, there is no problem in which the coupling mechanism 370 is disconnected.

ここで、本発明は上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲における変更が可能である。例えば、本実施形態では、ロアカバー350の係合部370kの板部375を径方向外側に変形可能な構成とし、サブタンク本体310の被係合部370uの受け部372を箱形ブロック状に形成する例を示した。しかし、ロアカバー350の係合部370kの板部375を変形不能な構成とし、サブタンク本体310の被係合部370uの受け部372を径方向内側に弾性変形可能な構成とすることも可能である。また、本実施形態では、サブタンク本体310とロアカバー350との結合機構370を周方向に等間隔で4か所に設ける例を示したが、結合機構370の数はサブタンク300の径寸法に応じて宜変更可能である。 Here, the present invention is not limited to the above-described embodiments, and modifications can be made within the scope of the invention. For example, in the present embodiment, the plate portion 375 of the engaging portion 370k of the lower cover 350 is configured to be deformable radially outward, and the receiving portion 372 of the engaged portion 370u of the sub-tank body 310 is formed into a box-shaped block shape. An example was given. However, it is also possible to configure the plate portion 375 of the engaging portion 370k of the lower cover 350 to be non-deformable, and to configure the receiving portion 372 of the engaged portion 370u of the sub-tank body 310 to be elastically deformable radially inward. . Furthermore, in this embodiment, an example is shown in which the coupling mechanisms 370 between the sub-tank main body 310 and the lower cover 350 are provided at four locations at equal intervals in the circumferential direction, but the number of coupling mechanisms 370 varies depending on the diameter of the sub-tank 300. It can be changed as needed.

また、本実施形態では、サブタンク本体310とロアカバー350が軸方向(上下方向)に相対移動することで、係合部370kの板部375が径方向外側に撓み変形しつつ、板部375の先端の爪部377が被係合部370uの爪用開口372hと係合する例を示した。しかし、サブタンク本体310とロアカバー350とが軸心回りに一定角度回動することにより、係合部370kと被係合部370uとが係合する構成でも可能である。また、本実施形態では、燃料貯留容器の一例としてサブタンク300を例示したが、サブタンク300以外の燃料容器に本発明を適用することも可能である。 Furthermore, in this embodiment, as the sub-tank main body 310 and the lower cover 350 move relative to each other in the axial direction (vertical direction), the plate portion 375 of the engaging portion 370k is flexibly deformed radially outward, and the tip of the plate portion 375 is An example is shown in which the claw portion 377 engages with the claw opening 372h of the engaged portion 370u. However, a configuration is also possible in which the sub-tank main body 310 and the lower cover 350 rotate at a certain angle around the axis, so that the engaging portion 370k and the engaged portion 370u engage with each other. Further, in this embodiment, the sub-tank 300 is illustrated as an example of a fuel storage container, but the present invention can also be applied to fuel containers other than the sub-tank 300.

10・・・・燃料供給装置
300・・・サブタンク(燃料貯留容器)
310・・・サブタンク本体(アッパー部材)
313・・・開口
315・・・フィルタ挟持壁部
340・・・燃料フィルタ(フィルタ部材)
341・・・フィルタ本体部
344・・・被挟持部
346・・・フィルタ外周縁
350・・・ロアカバー(ロア部材)
353・・・フィルタ挟持壁部
370・・・結合機構
370k・・係合部
370u・・被係合部
372・・・受け部
372h・・爪用開口
374・・・凸部
375・・・板部
377・・・爪部
10...Fuel supply device 300...Sub tank (fuel storage container)
310...Subtank body (upper member)
313...Opening 315...Filter holding wall portion 340...Fuel filter (filter member)
341... Filter main body 344... Sandwiched part 346... Filter outer peripheral edge 350... Lower cover (lower member)
353...Filter holding wall part 370...Coupling mechanism 370k...Engaging part 370u...Engaged part 372...Receiving part 372h...Claw opening 374...Convex part 375...Plate Part 377...claw part

Claims (6)

下側に開口を有する容器状のアッパー部材と、前記アッパー部材の開口を覆うロア部材と、前記開口を覆っており、前記アッパー部材と前記ロア部材間に挟持されるフィルタ部材と、前記アッパー部材と前記ロア部材とを結合する結合機構とを備え、前記アッパー部材と前記フィルタ部材とにより囲まれた領域に燃料を貯留可能な燃料貯留容器であって、
前記結合機構は、
前記アッパー部材の外周縁に設けられた複数の被係合部と、
前記ロア部材の外周縁に複数設けられ、前記アッパー部材の複数の被係合部とそれぞれ係合可能に構成された係合部と、
を有しており、
前記ロア部材の前記係合部は、前記アッパー部材の被係合部に対して径方向外側に配置されており、前記被係合部に対して径方向外側から係合可能に構成されている燃料貯留容器。
a container-shaped upper member having an opening on the lower side; a lower member that covers the opening of the upper member; a filter member that covers the opening and is held between the upper member and the lower member; and the upper member. and a coupling mechanism for coupling the lower member to the fuel storage container, the fuel storage container being capable of storing fuel in an area surrounded by the upper member and the filter member,
The coupling mechanism is
a plurality of engaged parts provided on the outer peripheral edge of the upper member;
a plurality of engaging portions provided on the outer peripheral edge of the lower member and each configured to be able to engage with a plurality of engaged portions of the upper member;
It has
The engaging portion of the lower member is disposed radially outward with respect to the engaged portion of the upper member, and is configured to be able to engage with the engaged portion from the radial outside. Fuel storage container.
請求項1に記載された燃料貯留容器であって、
前記ロア部材の係合部は撓み変形可能な構成であり、
前記係合部は、前記アッパー部材と前記ロア部材とが軸方向に相対移動することで、径方向外側に撓み変形しながら前記被係合部と係合可能に構成されている燃料貯留容器。
The fuel storage container according to claim 1,
The engaging portion of the lower member is configured to be flexibly deformable,
The engaging portion is configured to be able to engage with the engaged portion while being bent and deformed radially outward by relative movement of the upper member and the lower member in the axial direction.
請求項1又は請求項2のいずれかに記載された燃料貯留容器であって、
前記ロア部材の係合部は、前記ロア部材の外周縁から軸方向に張り出す板部と、その板部の先端で径方向内側に突出する爪部とを備えており、
前記アッパー部材の被係合部は、前記ロア部材の係合部の板部が径方向外側から重なるように形成された受け部と、前記ロア部材の係合部の爪部が係合可能なように、前記受け部に形成された爪用開口とから構成されている燃料貯留容器。
The fuel storage container according to claim 1 or 2,
The engagement portion of the lower member includes a plate portion extending in the axial direction from the outer peripheral edge of the lower member, and a claw portion protruding inward in the radial direction at the tip of the plate portion,
The engaged portion of the upper member is capable of engaging with a receiving portion formed such that the plate portion of the engaging portion of the lower member overlaps from the outside in the radial direction, and the claw portion of the engaging portion of the lower member. and a claw opening formed in the receiving portion.
請求項3に記載された燃料貯留容器であって、
前記フィルタ部材は、燃料をろ過するフィルタ本体部と、そのフィルタ本体部を囲む環状に形成されて、前記アッパー部材と前記ロア部材間に挟持される被挟持部と、その被挟持部よりも径方向外側に位置しているフィルタ外周縁とを備えており、
前記ロア部材の係合部の爪部と前記アッパー部材の被係合部の爪用開口との係合部分は、前記フィルタ部材に対して軸方向に位置ずれしており、さらに、前記係合部分は、前記フィルタ部材の前記フィルタ外周縁と平面視において重なる位置に設けられている燃料貯留容器。
The fuel storage container according to claim 3,
The filter member includes a filter main body that filters fuel, a sandwiched part that is formed in an annular shape surrounding the filter main body and is sandwiched between the upper member and the lower member, and has a diameter larger than that of the sandwiched part. and a filter outer peripheral edge located on the outside in the direction,
The engagement portion between the claw portion of the engaging portion of the lower member and the claw opening of the engaged portion of the upper member is axially displaced with respect to the filter member, and The portion is a fuel storage container provided at a position overlapping the filter outer peripheral edge of the filter member in a plan view.
請求項4に記載された燃料貯留容器であって、
前記ロア部材における複数の係合部の板部の内径寸法は、前記フィルタ部材の外径寸法とほぼ等しい値に設定されている燃料貯留容器。
The fuel storage container according to claim 4,
In the fuel storage container, the inner diameter of the plate portions of the plurality of engaging portions in the lower member is set to a value substantially equal to the outer diameter of the filter member.
請求項5に記載された燃料貯留容器であって、
前記アッパー部材の被係合部には、前記ロア部材の係合部の爪部がそのアッパー部材の被係合部の爪用開口と係合した状態で、前記ロア部材の係合部の板部の先端を軸方向から覆う凸部が設けられている燃料貯留容器。
The fuel storage container according to claim 5,
The engagement portion of the upper member is provided with a plate of the engagement portion of the lower member in a state where the claw portion of the engagement portion of the lower member is engaged with the claw opening of the engagement portion of the upper member. A fuel storage container that is provided with a convex portion that covers the tip of the portion from the axial direction.
JP2022111608A 2022-07-12 2022-07-12 fuel storage container Pending JP2024010328A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022111608A JP2024010328A (en) 2022-07-12 2022-07-12 fuel storage container
CN202321791914.5U CN220452068U (en) 2022-07-12 2023-07-10 Fuel storage container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022111608A JP2024010328A (en) 2022-07-12 2022-07-12 fuel storage container

Publications (1)

Publication Number Publication Date
JP2024010328A true JP2024010328A (en) 2024-01-24

Family

ID=89620958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022111608A Pending JP2024010328A (en) 2022-07-12 2022-07-12 fuel storage container

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Country Link
JP (1) JP2024010328A (en)
CN (1) CN220452068U (en)

Also Published As

Publication number Publication date
CN220452068U (en) 2024-02-06

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