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JP6695782B2 - Fuel filter - Google Patents
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JP6695782B2 - Fuel filter - Google Patents

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JP6695782B2
JP6695782B2 JP2016222982A JP2016222982A JP6695782B2 JP 6695782 B2 JP6695782 B2 JP 6695782B2 JP 2016222982 A JP2016222982 A JP 2016222982A JP 2016222982 A JP2016222982 A JP 2016222982A JP 6695782 B2 JP6695782 B2 JP 6695782B2
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filter
fuel
opening
engagement
engaging
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JP2018080622A (en
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直亮 橋本
直亮 橋本
敏郎 鈴木
敏郎 鈴木
新二 池田
新二 池田
義弘 佐久間
義弘 佐久間
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Aisan Industry Co Ltd
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Aisan Industry Co Ltd
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Description

本発明は、燃料フィルタに関するものである。   The present invention relates to a fuel filter.

主として、二輪自動車、四輪自動車等の車両の燃料タンク内に配置された燃料ポンプに吸入される燃料を濾過する燃料フィルタには、例えば特許文献1(以下、「従来例」という)に記載されたものがある。従来例の燃料フィルタは、フィルタ部材とボーン部材とボデー部材とを備えている。フィルタ部材は、開口部を有する袋形状に形成されかつ燃料ポンプに吸入される燃料を濾過する。ボーン部材は、フィルタ部材を膨大状態に保持する。ボデー部材は、ボーン部材に接続されかつフィルタ部材の内部空間を開口部を介して外部と連通する。   A fuel filter mainly for filtering fuel drawn into a fuel pump arranged in a fuel tank of a vehicle such as a two-wheeled vehicle or a four-wheeled vehicle is described in, for example, Patent Document 1 (hereinafter referred to as "conventional example"). There is something. The conventional fuel filter includes a filter member, a bone member, and a body member. The filter member is formed in a bag shape having an opening and filters the fuel drawn into the fuel pump. The bone member holds the filter member in an enormous state. The body member is connected to the bone member and communicates the inside space of the filter member with the outside through the opening.

図20は燃料フィルタのボーン部材とボデー部材との接続部を示す断面図である。図20に示すように、ボーン部材202には、フィルタ部材204の開口部205の孔縁部206の外周部207に内側から面する環状の内側挟持部203が形成されている。ボデー部材210には、同じく環状の外側挟持部212が形成されている、ボーン部材202とボデー部材210との間には、内側挟持部203と外側挟持部212との間にフィルタ部材204(詳しくは、外周部207)を挟持した状態でスナップフィット係合可能な係合手段214が設けられている。係合手段214は、ボーン部材202に設けられかつ外周面に円環状に形成された突起部217を有する円筒状の内筒部216と、ボデー部材210に設けられかつ内周面に円環状に形成された溝部219を有する円筒状の外筒部218とからなる。内側挟持部203と内筒部216との間には、環状の凹部220が形成されている。ボーン部材202の内筒部216とボデー部材210の外筒部218とを嵌合することにより、係合手段214の突起部217と溝部219とがスナップフィット係合される。これにより、ボデー部材210とボーン部材202とが接続されるとともに、内側挟持部203と外側挟持部212との間にフィルタ部材204(詳しくは、外周部207)が挟持されている。   FIG. 20 is a cross-sectional view showing a connecting portion between the bone member and the body member of the fuel filter. As shown in FIG. 20, the bone member 202 is formed with an annular inner sandwiching portion 203 facing the outer peripheral portion 207 of the hole edge portion 206 of the opening 205 of the filter member 204 from the inside. The body member 210 is also formed with an annular outer sandwiching portion 212. Between the bone member 202 and the body member 210, the filter member 204 (in detail, between the inner sandwiching portion 203 and the outer sandwiching portion 212). Is provided with an engagement means 214 capable of snap-fit engagement with the outer peripheral portion 207) being sandwiched. The engaging means 214 is provided on the bone member 202 and has a cylindrical inner cylindrical portion 216 having a projection 217 formed in an annular shape on the outer peripheral surface, and the body member 210, and has an annular shape on the inner peripheral surface. It is composed of a cylindrical outer cylinder part 218 having a formed groove part 219. An annular recess 220 is formed between the inner sandwiching portion 203 and the inner tubular portion 216. By fitting the inner tubular portion 216 of the bone member 202 and the outer tubular portion 218 of the body member 210, the projection 217 and the groove 219 of the engaging means 214 are snap-fit engaged. As a result, the body member 210 and the bone member 202 are connected, and the filter member 204 (specifically, the outer peripheral portion 207) is sandwiched between the inner sandwiching portion 203 and the outer sandwiching portion 212.

特開2004−92403号公報JP, 2004-92403, A

従来例によると、係合手段214の構造上、突起部217及び溝部219にかかる寸法管理が難しい。したがって、突起部217と溝部219との間でスラスト方向(軸方向)にがたつきやすく、両者217,219間のシール性が低下するおそれがあった。シール性の低下を補うため、フィルタ部材204の開口部205の孔縁部206が下方に向けて円筒状に折り曲げられ、その孔縁部206が内側挟持部203と外筒部218の下端部218aとの間でラジアル方向(径方向)に挟持すなわちシールされている。したがって、フィルタ部材204の孔縁部206を円筒状に折り曲げる分に応じて、内筒部216及び外筒部218の軸方向長さが増大し、燃料フィルタの大型化を招くおそれがあった。本発明が解決しようとする課題は、ボーン部材とボデー部材との接続にかかる軸方向長さを短縮することのできる燃料フィルタを提供することにある。   According to the conventional example, due to the structure of the engaging means 214, it is difficult to control the dimensions of the protrusion 217 and the groove 219. Therefore, the protrusion 217 and the groove 219 tend to rattle in the thrust direction (axial direction), and there is a risk that the sealing performance between the two 217 and 219 may deteriorate. In order to compensate for the deterioration of the sealing property, the hole edge portion 206 of the opening portion 205 of the filter member 204 is bent downward in a cylindrical shape, and the hole edge portion 206 has the hole edge portion 206 and the lower end portion 218 a of the outer cylindrical portion 218. And is sandwiched or sealed in the radial direction (radial direction). Therefore, the axial lengths of the inner tubular portion 216 and the outer tubular portion 218 may increase in accordance with the amount by which the hole edge portion 206 of the filter member 204 is bent into a cylindrical shape, which may lead to an increase in the size of the fuel filter. An object of the present invention is to provide a fuel filter capable of reducing the axial length required for connecting the bone member and the body member.

前記課題は、本発明の燃料フィルタにより解決することができる。第1の発明は、開口部を有する袋形状に形成されかつ燃料ポンプに吸入される燃料を濾過するフィルタ部材と、前記フィルタ部材を膨大状態に保持するボーン部材と、前記ボーン部材に接続されかつ前記フィルタ部材の内部空間を前記開口部を介して外部と連通するボデー部材と、を備える燃料フィルタであって、前記ボーン部材と前記ボデー部材との間には、前記フィルタ部材の開口部の孔縁部を挟持した状態でスナップフィット係合可能な係合手段が設けられており、前記係合手段は、前記ボーン部材に設けられかつ前記フィルタ部材の挟持方向と交差する方向に延在する抜け止め面を有する係合部と、前記ボデー部材に設けられかつ前記抜け止め面と対面状に係合する被抜け止め面を有する被係合部とからなる、燃料フィルタ
である。
The above problems can be solved by the fuel filter of the present invention. A first aspect of the present invention is directed to a filter member that is formed in a bag shape having an opening and filters the fuel sucked into a fuel pump, a bone member that holds the filter member in an enlarged state, and a bone member that is connected to the bone member. A fuel filter comprising: a body member that communicates the inner space of the filter member with the outside through the opening, wherein a hole of the opening of the filter member is provided between the bone member and the body member. Engagement means capable of snap-fit engagement with the edge portion sandwiched is provided, and the engagement means is provided in the bone member and extends through in a direction intersecting the sandwiching direction of the filter member. A fuel filter comprising: an engaging portion having a retaining surface; and an engaged portion provided on the body member and having a retaining surface that engages with the retaining surface in a face-to-face manner.

この構成によると、ボーン部材の係合部とボデー部材の被係合部とからなる係合手段がスナップフィット係合される。これによって、ボーン部材とボデー部材とが接続されるとともに、ボーン部材とボデー部材との間にフィルタ部材の開口部の孔縁部が挟持される。また、係合手段は、ボーン部材に設けられかつフィルタ部材の挟持方向と交差する方向に延在する抜け止め面を有する係合部と、ボデー部材に設けられかつ抜け止め面と対面状に係合する被抜け止め面を有する被係合部とからなる。このため、係合部の抜け止め面と被係合部の被抜け止め面とが対面状に係合することによって、係合部と被係合部との間のがたつき、特にフィルタ部材の開口部の軸方向のがたつきを抑制することができる。また、係合部と被係合部とは、形状が簡素であるため、寸法管理が容易であり、精度良くスナップフィット係合させることができる。したがって、従来例と異なり、フィルタ部材の開口部の孔縁部を円筒状に折り曲げる必要がなくなるため、ボーン部材とボデー部材との接続にかかる軸方向長さを短縮することができる。ひいては、燃料フィルタを小型化することができる。   According to this structure, the engaging means including the engaging portion of the bone member and the engaged portion of the body member is snap-fit engaged. As a result, the bone member and the body member are connected, and the hole edge portion of the opening of the filter member is sandwiched between the bone member and the body member. The engaging means is provided on the bone member and has an engagement portion having a retaining surface extending in a direction intersecting the holding direction of the filter member, and an engaging portion provided on the body member and facing the retaining surface. And an engaged portion having a mating retained surface. Therefore, when the retaining surface of the engaging portion and the retaining surface of the engaged portion are engaged with each other in a face-to-face manner, rattling between the engaging portion and the engaged portion, particularly a filter member. Backlash in the axial direction of the opening can be suppressed. Further, since the engaging portion and the engaged portion have simple shapes, dimensional management is easy, and snap-fit engagement can be performed with high accuracy. Therefore, unlike the conventional example, it is not necessary to bend the hole edge portion of the opening of the filter member into a cylindrical shape, so that the axial length required for connecting the bone member and the body member can be shortened. As a result, the fuel filter can be downsized.

第2の発明は、第1の発明において、前記係合部は、前記被係合部の被抜け止め面に当接する前記抜け止め面を先端部に有する鉤爪状に形成されており、前記係合部の抜け止め面よりも基部側には、前記被係合部の被抜け止め面との間に隙間を形成する逃がし面が形成されている、燃料フィルタである。この構成によると、係合部と被係合部との係合状態において、ボーン部材とボデー部材との間に抜け方向の荷重が作用した場合、係合部の抜け止め面に対する被係合部の被抜け止め面の荷重の重心を被抜け止め面の奥側に設定することができる。これにより、ボーン部材とボデー部材との間の抜け方向の荷重によるモーメントを低減することができる。したがって、係合手段の係合解除方向への弾性変形を抑制し、ボーン部材に対するボデー部材の抜け外れを抑制することができる。   In a second aspect based on the first aspect, the engaging portion is formed in a hook-like shape having a tip end portion with the retaining surface that contacts the retaining surface of the engaged portion. A fuel filter is provided with a relief surface, which forms a gap between the engagement portion and the retaining surface of the engaged portion, on the base side of the retaining surface. According to this structure, when the load in the detaching direction acts between the bone member and the body member in the engaged state between the engaging portion and the engaged portion, the engaged portion with respect to the retaining surface of the engaging portion is engaged. It is possible to set the center of gravity of the load of the retaining surface on the back side of the retaining surface. As a result, the moment due to the load in the pull-out direction between the bone member and the body member can be reduced. Therefore, it is possible to suppress elastic deformation of the engaging means in the disengagement direction, and to prevent the body member from coming off from the bone member.

第3の発明は、第1又は2の発明において、前記フィルタ部材には、前記開口部の内周面を全面的に覆う溶融固化部が形成されている、燃料フィルタである。この構成によると、フィルタ部材の開口部の内周面が溶融固化部によって全面的に覆われているため、フィルタ部材の孔縁部から開口部内への燃料の流入を抑制し、その燃料の流入にともなうフィルタ部材の開口部の内周面からの異物の流入を抑制することができる。   A third aspect of the invention is the fuel filter according to the first or second aspect of the invention, in which the filter member is formed with a melt-solidified portion that entirely covers the inner peripheral surface of the opening. According to this structure, the inner peripheral surface of the opening of the filter member is entirely covered with the melted and solidified portion, so that the inflow of fuel from the hole edge of the filter member into the opening is suppressed and the inflow of the fuel is suppressed. It is possible to suppress the inflow of foreign matter from the inner peripheral surface of the opening of the filter member.

第4の発明は、第1〜3のいずれか1つの発明において、前記ボーン部材と前記ボデー部材との少なくとも一方の部材において、前記フィルタ部材の開口部の孔縁部を挟持する面には、その孔縁部の一部を押圧するための押圧凸部が形成されている、燃料フィルタである。この構成によると、押圧凸部によって、フィルタ部材の開口部の孔縁部の一部を強く押圧することができる。   4th invention is set to the surface which clamps the hole edge part of the opening part of the said filter member in at least one member of the said bone member and the said body member in any one of 1st-3rd invention, The fuel filter has a pressing protrusion for pressing a part of the hole edge. According to this configuration, the pressing projection can strongly press a part of the hole edge of the opening of the filter member.

実施形態1にかかる燃料ポンプモジュールを後方から見下ろした斜視図である。FIG. 3 is a perspective view of the fuel pump module according to the first embodiment as viewed from the rear. 燃料ポンプモジュールを一部破断して示す後面図である。It is a rear view which shows a fuel pump module partially broken. 燃料フィルタを示す上面図である。It is a top view which shows a fuel filter. 図3のIV−IV線矢視断面図である。FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3. 図3のV−V線矢視断面図である。FIG. 5 is a sectional view taken along the line VV of FIG. 3. 図5の要部を示す拡大図である。It is an enlarged view which shows the principal part of FIG. ボーン部材とボデー部材との接続部を示す下面図である。It is a bottom view which shows the connection part of a bone member and a body member. ボーン部材とボデー部材を分解して前方から見下ろした斜視図である。It is a perspective view which disassembled the bone member and the body member and looked down from the front. ボーン部材とボデー部材を分解して前方から見上げた斜視図である。It is the perspective view which looked up from the front which decomposed | disassembled the bone member and the body member. ボーン部材とボデー部材を分解して示す正断面図である。It is a front sectional view which decomposes | disassembles and shows a bone member and a body member. ボーン部材とボデー部材を分解して示す側断面図である。It is a sectional side view which decomposes | disassembles and shows a bone member and a body member. ボーン部材の接続部を示す上面図である。It is a top view which shows the connection part of a bone member. ボデー部材を示す下面図である。It is a bottom view which shows a body member. 濾材を示す上面図である。It is a top view which shows a filter medium. 濾材の孔あけ工程を示す断面図である。It is sectional drawing which shows the drilling process of a filter medium. 燃料フィルタの半製品を示す平面図である。It is a top view which shows the semi-finished product of a fuel filter. 実施形態2にかかる燃料フィルタを示す正断面図である。FIG. 6 is a front sectional view showing a fuel filter according to a second embodiment. 実施形態3にかかる燃料フィルタを示す正断面図である。FIG. 6 is a front sectional view showing a fuel filter according to a third embodiment. 実施形態4にかかる燃料フィルタを示す正断面図である。FIG. 6 is a front sectional view showing a fuel filter according to a fourth embodiment. 従来例にかかる燃料フィルタのボーン部材とボデー部材との接続部を示す断面図である。FIG. 7 is a cross-sectional view showing a connecting portion between a bone member and a body member of a fuel filter according to a conventional example.

以下、本発明を実施するための形態について図面を用いて説明する。   Embodiments for carrying out the present invention will be described below with reference to the drawings.

[実施形態1]実施形態1を説明する。本実施形態では、例えば、二輪車自動車の燃料タンク内の燃料を内燃機関いわゆるエンジンに供給する燃料ポンプモジュールに用いられる燃料フィルタを例示する。図1は燃料ポンプモジュールを後方から見下ろした斜視図、図2は同じく一部破断して示す後面図である。また、図中の矢印は、燃料ポンプモジュールの前後左右上下方向を示している。上下方向は、車両の燃料タンクに搭載された状態での重力方向いわゆる天地方向に対応する。また、前後左右方向は特定するものではない。 [First Embodiment] A first embodiment will be described. In the present embodiment, for example, a fuel filter used in a fuel pump module that supplies fuel in a fuel tank of a two-wheeled vehicle to an internal combustion engine, that is, an engine is exemplified. FIG. 1 is a perspective view of the fuel pump module looking down from the rear, and FIG. The arrows in the figure indicate the front, rear, left, right, up, and down directions of the fuel pump module. The up-down direction corresponds to the direction of gravity when mounted in the fuel tank of the vehicle, the so-called up-down direction. Further, the front, rear, left, and right directions are not specified.

燃料ポンプモジュールの概要から説明する。図2に示すように、燃料ポンプモジュール10は、燃料タンク12の上壁部12aに装着される、いわゆる上付けタイプの燃料ポンプモジュールである。燃料タンク12は、例えば金属製の中空状の容器で、上壁部12a及び底壁部12bを有している。上壁部12aには、円形状の開口孔13が形成されている。燃料タンク12内には、エンジン用の燃料、例えばガソリン等の液体燃料が貯留されている。   The outline of the fuel pump module will be described. As shown in FIG. 2, the fuel pump module 10 is a so-called top-mounted fuel pump module mounted on the upper wall portion 12 a of the fuel tank 12. The fuel tank 12 is, for example, a metal hollow container having an upper wall portion 12a and a bottom wall portion 12b. A circular opening hole 13 is formed in the upper wall portion 12a. Fuel for the engine, for example, liquid fuel such as gasoline is stored in the fuel tank 12.

燃料ポンプモジュール10は、セットプレート14、ポンプ保持部材16、燃料ポンプ18、燃料フィルタ20、プレッシャーレギュレータ22、及び、センダゲージ24等がモジュール化されてなる。セットプレート14は、樹脂製で、円板状に形成されたプレート本体部26を主体として形成されている。プレート本体部26には、燃料吐出ポート27、電源用コネクタ28、及び、信号用コネクタ29が設けられている(図1参照)。   The fuel pump module 10 includes a set plate 14, a pump holding member 16, a fuel pump 18, a fuel filter 20, a pressure regulator 22, a sender gauge 24, and the like, which are modularized. The set plate 14 is made of resin, and is mainly formed of a plate body portion 26 formed in a disc shape. The plate body 26 is provided with a fuel discharge port 27, a power supply connector 28, and a signal connector 29 (see FIG. 1).

プレート本体部26の下面には、ポンプ保持部材16を連結するための円筒状の連結部30が設けられている。ポンプ保持部材16は、樹脂製で、有底円筒状に形成されている。ポンプ保持部材16は、セットプレート14の連結部30にスナップフィット係合等によって取付けられている。ポンプ保持部材16の底部には、吸入ポート32が形成されている。   A cylindrical connecting portion 30 for connecting the pump holding member 16 is provided on the lower surface of the plate body portion 26. The pump holding member 16 is made of resin and has a bottomed cylindrical shape. The pump holding member 16 is attached to the connecting portion 30 of the set plate 14 by snap fit engagement or the like. An intake port 32 is formed at the bottom of the pump holding member 16.

燃料ポンプ18は、ポンプ保持部材16内に縦置き状に配置すなわち収容されている。燃料ポンプ18は、燃料タンク12内の燃料を吸入しかつ加圧して吐出するウエスコ型の電動式燃料ポンプである。燃料ポンプ18のモータ用電気配線34は、セットプレート14の電源用コネクタ28に電気的に接続されている。なお、燃料ポンプ18の下端部に設けられた燃料吸入口(不図示)は、ポンプ保持部材16の吸入ポート32内に接続されている。燃料ポンプ18の上端部に設けられた燃料吐出口(不図示)は、ポンプ保持部材16に設けられた流通路(不図示)を介して、セットプレート14の燃料吐出ポート27に接続されている。   The fuel pump 18 is vertically arranged or accommodated in the pump holding member 16. The fuel pump 18 is a Wesco type electric fuel pump that sucks, pressurizes, and discharges the fuel in the fuel tank 12. The electric wiring 34 for the motor of the fuel pump 18 is electrically connected to the power supply connector 28 of the set plate 14. The fuel suction port (not shown) provided at the lower end of the fuel pump 18 is connected to the suction port 32 of the pump holding member 16. A fuel discharge port (not shown) provided at the upper end of the fuel pump 18 is connected to a fuel discharge port 27 of the set plate 14 via a flow passage (not shown) provided in the pump holding member 16. ..

燃料フィルタ20は、燃料を濾過する袋形状のフィルタ部材36と、フィルタ部材36内に配置されてフィルタ部材36を内側から膨大状態に保持するボーン部材38と、ボーン部材38に接続されたボデー部材40と、を備えている。ボデー部材40は、ポンプ保持部材16にスナップフィット係合等によって取付けられている。ボデー部材40は、ポンプ保持部材16の吸入ポート32とフィルタ部材36の内部空間37とを連通している。これによって、フィルタ部材36内の燃料は、燃料ポンプ18の燃料吸入口側(燃料吸入側)に導入される。なお、燃料フィルタ20は後で説明する。   The fuel filter 20 includes a bag-shaped filter member 36 that filters fuel, a bone member 38 that is disposed inside the filter member 36 and holds the filter member 36 in an enlarged state from the inside, and a body member that is connected to the bone member 38. 40 is provided. The body member 40 is attached to the pump holding member 16 by snap fit engagement or the like. The body member 40 connects the suction port 32 of the pump holding member 16 and the internal space 37 of the filter member 36. As a result, the fuel in the filter member 36 is introduced to the fuel intake port side (fuel intake side) of the fuel pump 18. The fuel filter 20 will be described later.

プレッシャーレギュレータ22は、セットプレート14の連結部30に組み込まれている。連結部30には、プレッシャーレギュレータ22を抜け止めするための抜け止め部材42がスナップフィット係合等によって取付けられている。プレッシャーレギュレータ22は、燃料吐出ポート27内の燃料の圧力を調整しかつ余剰燃料を余剰燃料吐出口(不図示)から燃料タンク12内に排出する。   The pressure regulator 22 is incorporated in the connecting portion 30 of the set plate 14. A retaining member 42 for retaining the pressure regulator 22 is attached to the connecting portion 30 by snap-fit engagement or the like. The pressure regulator 22 adjusts the pressure of the fuel in the fuel discharge port 27 and discharges the surplus fuel from the surplus fuel discharge port (not shown) into the fuel tank 12.

センダゲージ24は、燃料計センサで、ポンプ保持部材16に装着されたゲージ本体44と、ゲージ本体44の回動部材に片持ち状に支持されたアーム45と、アーム45の自由端に取付けられたフロート46とを備えている。ゲージ本体44は、燃料タンク12内の燃料残量に応じて上下するフロート46の位置を燃料残量信号として出力する。センダゲージ24の信号用電気配線47は、セットプレート14の信号用コネクタ29に電気的に接続されている。   The sender gauge 24 is a fuel gauge sensor, and is attached to the gauge main body 44 attached to the pump holding member 16, the arm 45 cantilevered by the rotating member of the gauge main body 44, and the free end of the arm 45. And a float 46. The gauge body 44 outputs the position of the float 46 that moves up and down according to the remaining fuel amount in the fuel tank 12 as a remaining fuel amount signal. The signal electric wiring 47 of the sender gauge 24 is electrically connected to the signal connector 29 of the set plate 14.

燃料ポンプモジュール10は、燃料タンク12の開口孔13から挿入され、セットプレート14が開口孔13を閉鎖するように上壁部12aに装着されることによって、燃料タンク12に設置されている。また、燃料フィルタ20のフィルタ部材36の下面部は、燃料タンク12の底壁部12bに当接又は近接されている。なお、図示しないが、セットプレート14の燃料吐出ポート27には、エンジンにつながる燃料供給配管が接続される。また、電源用コネクタ28には、外部電源につながる外部コネクタが接続される。また、信号用コネクタ29には、制御装置につながる外部コネクタが接続される。   The fuel pump module 10 is installed in the fuel tank 12 by being inserted from the opening hole 13 of the fuel tank 12 and being attached to the upper wall portion 12 a so that the set plate 14 closes the opening hole 13. The lower surface of the filter member 36 of the fuel filter 20 is in contact with or close to the bottom wall 12b of the fuel tank 12. Although not shown, a fuel supply pipe connected to the engine is connected to the fuel discharge port 27 of the set plate 14. An external connector connected to an external power source is connected to the power connector 28. An external connector connected to the control device is connected to the signal connector 29.

燃料ポンプモジュール10の作動について説明する。外部電源により燃料ポンプ18が駆動されると、燃料タンク12内の燃料が燃料フィルタ20により濾過されてクリーンな燃料とされた後、燃料ポンプ18に吸入される。燃料ポンプ18によって加圧された燃料は、セットプレート14の燃料吐出ポート27から吐出される。その燃料は、燃料供給配管を介してエンジンに供給される。エンジンに供給される燃料の圧力は、プレッシャーレギュレータ22により所定の圧力に調整され、余剰燃料は燃料タンク12内に戻される。また、燃料タンク12内の燃料残量は、センダゲージ24によって検出される。   The operation of the fuel pump module 10 will be described. When the fuel pump 18 is driven by the external power source, the fuel in the fuel tank 12 is filtered by the fuel filter 20 to be a clean fuel, and then is sucked into the fuel pump 18. The fuel pressurized by the fuel pump 18 is discharged from the fuel discharge port 27 of the set plate 14. The fuel is supplied to the engine through the fuel supply pipe. The pressure of the fuel supplied to the engine is adjusted to a predetermined pressure by the pressure regulator 22, and the surplus fuel is returned to the fuel tank 12. Further, the amount of fuel remaining in the fuel tank 12 is detected by the sender gauge 24.

次に、燃料フィルタ20を説明する。図3は燃料フィルタを示す上面図、図4は図3のIV−IV線矢視断面図、図5は図3のV−V線矢視断面図、図6は図5の要部を示す拡大図、図7はボーン部材とボデー部材との接続部を示す下面図である。図4に示すように、燃料フィルタ20は、前出のフィルタ部材36とボーン部材38とボデー部材40とを備えている。   Next, the fuel filter 20 will be described. 3 is a top view showing the fuel filter, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a sectional view taken along the line V-V of FIG. 3, and FIG. 6 shows a main part of FIG. An enlarged view, FIG. 7 is a bottom view showing a connecting portion between the bone member and the body member. As shown in FIG. 4, the fuel filter 20 includes the filter member 36, the bone member 38, and the body member 40 described above.

フィルタ部材36は、燃料を濾過するシート状の濾材50により形成されている。濾材50は、例えば、樹脂製の不織布を複数枚積層することによって構成されている。1枚の濾材50を直線状の折り曲げ部50cで二つ折りすることによって、上面部51aと下面部51bとが形成されている。上面部51aと下面部51bとの外周縁部同士が溶着(溶着部52参照)により接合されている(図4及び図5参照)。これによって、フィルタ部材36が、上下方向に扁平な袋形状、すなわち一つの面すなわち水平面に沿って扁平な袋形状に形成されている。フィルタ部材36は、平面視(図3参照)において左右方向を長くする横長四角形状に形成されている。フィルタ部材36の前縁部の左端部は、左方へ向かって後方へ斜めに傾斜している。また、溶着部52は、フィルタ部材36の上下方向(高さ方向)の中間位置において水平状に形成されている。   The filter member 36 is formed of a sheet-shaped filter medium 50 that filters fuel. The filter medium 50 is configured by laminating a plurality of resin nonwoven fabrics, for example. An upper surface portion 51a and a lower surface portion 51b are formed by folding one piece of the filter medium 50 in two at the linear bending portion 50c. The outer peripheral edge portions of the upper surface portion 51a and the lower surface portion 51b are joined by welding (see welding portion 52) (see FIGS. 4 and 5). Thereby, the filter member 36 is formed in a flat bag shape in the vertical direction, that is, a flat bag shape along one surface, that is, a horizontal plane. The filter member 36 is formed in a horizontally long rectangular shape that extends in the left-right direction in a plan view (see FIG. 3). The left end of the front edge of the filter member 36 is inclined rearward toward the left. The welded portion 52 is horizontally formed at an intermediate position in the vertical direction (height direction) of the filter member 36.

フィルタ部材36の上面部51aの前側左端部には、円形孔状の開口部53が形成されている。開口部53の内周面は、溶融固化部54によって全面的に覆われている。開口部53の周辺部を孔縁部55という。   A circular hole-shaped opening 53 is formed at the front left end of the upper surface 51a of the filter member 36. The inner peripheral surface of the opening 53 is entirely covered with the melt-solidified portion 54. The peripheral portion of the opening portion 53 is referred to as a hole edge portion 55.

図8はボーン部材とボデー部材を分解して前方から見下ろした斜視図、図9は同じく前方から見上げた斜視図、図10はボーン部材とボデー部材を分解して示す正断面図、図11は同じく側断面図、図12はボーン部材の接続部を示す上面図、図13はボデー部材を示す下面図である。図8に示すように、ボーン部材38は、樹脂製で骨格構造を有している。ボーン部材38は、一つの面すなわち水平面に沿って扁平に形成されたベースフレーム56と、ベースフレーム56の下面に脚状に突出された複数のフレームリブ57とを有している。   8 is a perspective view of the bone member and the body member disassembled and looked down from the front, FIG. 9 is a perspective view of the bone member and the body member looked up from the front, FIG. Similarly, it is a side sectional view, FIG. 12 is a top view showing a connecting portion of a bone member, and FIG. 13 is a bottom view showing a body member. As shown in FIG. 8, the bone member 38 is made of resin and has a skeleton structure. The bone member 38 has a base frame 56 formed flat along one surface, that is, a horizontal plane, and a plurality of frame ribs 57 protruding in a leg shape on the lower surface of the base frame 56.

ベースフレーム56は、平面視で左右方向を長くする長四角形状に形成されている。ベースフレーム56は、長手方向(左右方向)に延びる複数(例えば3本)の横フレーム部56aと、短手方向(前後方向)に延びる複数(例えば4本)の縦フレーム部56bとによって格子板状に形成されている。フレームリブ57は、横フレーム部56aと縦フレーム部56bとが交差する箇所に配置されている(図9参照)。   The base frame 56 is formed in a rectangular shape that extends in the left-right direction in a plan view. The base frame 56 includes a plurality of (eg, three) horizontal frame portions 56a extending in the longitudinal direction (left-right direction) and a plurality (eg, four) vertical frame portions 56b extending in the lateral direction (front-rear direction) of the lattice plate. It is formed into a shape. The frame rib 57 is arranged at a position where the horizontal frame portion 56a and the vertical frame portion 56b intersect (see FIG. 9).

図4に示すように、ボーン部材38は、フィルタ部材36内に配置されている。ベースフレーム56は、濾材50の上面部51aを内側から支持する。各フレームリブ57は、濾材50の下面部51bを内側から支持する。これによって、フィルタ部材36の上面部51aと下面部51bとが所定の間隔を隔てた膨大状態に支持されている。ベースフレーム56の左側前部には、ボデー部材40を接続するための接続部58(後述する)が形成されている(図8参照)。   As shown in FIG. 4, the bone member 38 is arranged in the filter member 36. The base frame 56 supports the upper surface portion 51a of the filter medium 50 from the inside. Each frame rib 57 supports the lower surface portion 51b of the filter medium 50 from the inside. As a result, the upper surface portion 51a and the lower surface portion 51b of the filter member 36 are supported in an expanded state with a predetermined interval. A connection part 58 (described later) for connecting the body member 40 is formed on the left front part of the base frame 56 (see FIG. 8).

図8に示すように、ボデー部材40は、樹脂製で、円筒状の筒状部60と、筒状部60の一端部(上端部)に設けられた装着部61とを有している。装着部61は、ポンプ保持部材16の下端部にスナップフィット係合等によって連結可能に形成されている(図1及び図2参照)。図4及び図5に示すように、筒状部60の上端部は、接続口63とされている。接続口63は、ポンプ保持部材16の吸入ポート32に嵌合可能に形成されている。また、筒状部60は、フィルタ部材36の内部空間37と、ポンプ保持部材16の吸入ポート32とを連通する部材である。筒状部60の他端部(下端部)には、ボーン部材38を接続するための接続部(「被接続部」という)62(後述する)が形成されている(図9参照)。   As shown in FIG. 8, the body member 40 is made of resin and has a cylindrical tubular portion 60, and a mounting portion 61 provided at one end portion (upper end portion) of the tubular portion 60. The mounting portion 61 is formed to be connectable to the lower end portion of the pump holding member 16 by snap-fit engagement or the like (see FIGS. 1 and 2). As shown in FIGS. 4 and 5, the upper end of the tubular portion 60 serves as a connection port 63. The connection port 63 is formed so that it can be fitted into the suction port 32 of the pump holding member 16. The tubular portion 60 is a member that connects the internal space 37 of the filter member 36 and the suction port 32 of the pump holding member 16. At the other end (lower end) of the tubular portion 60, a connecting portion (referred to as “connected portion”) 62 (described later) for connecting the bone member 38 is formed (see FIG. 9).

次に、ボーン部材38の接続部58を説明する。図8に示すように、接続部58は、ボーン部材38のベースフレーム56の前側左端部に一体で形成されている。接続部58は、円環板状に形成された内側挟持部64を有している。内側挟持部64の下面には、多数のリブ状の支持突起65が突出されている(図7及び図9参照)。支持突起65は、内側挟持部64の下面に放射状に複数(図7及び図9では4個を示す)と、内側挟持部64の下面の外周部に複数(図7及び図9では6個を示す)配置されている。支持突起65は、各フレームリブ57と協働してフィルタ部材36の下面部51bを支持する(図4及び図5参照)。なお、支持突起65の形状、個数、配置等は適宜変更してもよい。   Next, the connecting portion 58 of the bone member 38 will be described. As shown in FIG. 8, the connecting portion 58 is integrally formed at the front left end of the base frame 56 of the bone member 38. The connecting portion 58 has an inner sandwiching portion 64 formed in the shape of an annular plate. A large number of rib-shaped support protrusions 65 project from the lower surface of the inner sandwiching portion 64 (see FIGS. 7 and 9). A plurality of support protrusions 65 are provided radially on the lower surface of the inner sandwiching portion 64 (four are shown in FIGS. 7 and 9), and a plurality (6 in FIG. 7 and 9 are provided on the outer peripheral portion of the lower surface of the inner sandwiching portion 64). It is arranged). The support protrusion 65 cooperates with each frame rib 57 to support the lower surface portion 51b of the filter member 36 (see FIGS. 4 and 5). The shape, number, and arrangement of the support protrusions 65 may be changed as appropriate.

内側挟持部64の上面には、円環状でリブ状の環状凸部66が同心状に突出されている(図12参照)。内側挟持部64の上面は、環状凸部66により内周側の上面(符号、67aを付す)と外周側の上面(符号、67bを付す)とに分割されている。外周側の上面67bは、内周側の上面67aよりも一段高く形成されている(図10及び図11参照)。   An annular rib-shaped annular convex portion 66 is concentrically projected from the upper surface of the inner sandwiching portion 64 (see FIG. 12). The upper surface of the inner sandwiching portion 64 is divided by the annular convex portion 66 into an upper surface on the inner peripheral side (reference numeral 67a) and an upper surface on the outer peripheral side (reference numeral 67b). The upper surface 67b on the outer peripheral side is formed higher than the upper surface 67a on the inner peripheral side (see FIGS. 10 and 11).

図12に示すように、内側挟持部64の中央部には、前後方向を長くする長四角形状の貫通孔69が形成されている(図8参照)。貫通孔69の左右両側辺の中央部には、四角溝状の左右の両嵌合溝70,71が対向状に形成されている(図10参照)。左側の嵌合溝70は、右側の嵌合溝71の前後方向の溝幅よりも小さい溝幅で形成されている。なお、両嵌合溝70,71の前後両壁面の上端部は、上方に向かって次第に前後方向に拡開するテーパ状に形成されている(図8参照)。   As shown in FIG. 12, a rectangular through-hole 69 extending in the front-rear direction is formed in the center of the inner sandwiching portion 64 (see FIG. 8). Square-shaped left and right fitting grooves 70, 71 are formed in opposition to each other at the center of both left and right sides of the through hole 69 (see FIG. 10). The left fitting groove 70 is formed with a groove width smaller than the groove width of the right fitting groove 71 in the front-rear direction. The upper ends of the front and rear wall surfaces of both fitting grooves 70, 71 are formed in a tapered shape that gradually widens upward in the front-rear direction (see FIG. 8).

貫通孔69の前後両側辺の中央部には、対向状をなす前後一対の係合凸部73が前後対称状に形成されている(図10及び図11参照)。係合凸部73は、左右方向に延在しかつ水平状の下面と、斜め上方に面する斜面74とを有する横向き直角三角柱状に形成されている(図6参照)。   A pair of front and rear engaging projections 73 that are opposed to each other are formed symmetrically in the front-rear direction at the central portions of both the front and rear sides of the through hole 69 (see FIGS. 10 and 11). The engaging convex portion 73 is formed in a lateral right-angled triangular prism shape having a horizontal lower surface extending in the left-right direction and an inclined surface 74 facing obliquely upward (see FIG. 6).

図6に示すように、係合凸部73は、基端部に比べ先端部が下方へ傾く鉤爪状に形成されている。係合凸部73の先端部の下面には、左右方向(図6において紙面表裏方向)に延在する抜け止め面75が形成されている。抜け止め面75は、内側挟持部64の軸線に直交する平面で形成されている。係合凸部73の抜け止め面75よりも基部側には、抜け止め面75から基部側(図6において左方)に向かって次第に上方へ傾く傾斜面からなる逃がし面76が形成されている。   As shown in FIG. 6, the engaging projection 73 is formed in a claw shape in which the tip end is inclined downward as compared with the base end. On the lower surface of the tip of the engaging convex portion 73, a retaining surface 75 extending in the left-right direction (front and back direction of the paper surface in FIG. 6) is formed. The retaining surface 75 is formed of a flat surface orthogonal to the axis of the inner sandwiching portion 64. On the base side of the engagement convex portion 73 with respect to the retaining surface 75, there is formed a relief surface 76 that is an inclined surface that gradually inclines upward from the retaining surface 75 toward the base side (left in FIG. 6). ..

次に、ボデー部材40の被接続部62を説明する。図9に示すように、被接続部62は、ボデー部材40に一体で形成されている。被接続部62は、筒状部60の下端部から径方向外方へ張り出す円環板状に形成された外側挟持部78と、筒状部60の下端部から下方へ延出された左右一対の両嵌合片80,81、及び、前後一対の両係合片83と、を有している(図13参照)。   Next, the connected portion 62 of the body member 40 will be described. As shown in FIG. 9, the connected portion 62 is formed integrally with the body member 40. The connected portion 62 includes an outer sandwiching portion 78 formed in an annular plate shape that extends radially outward from the lower end of the tubular portion 60, and left and right extending downward from the lower end of the tubular portion 60. It has a pair of both fitting pieces 80 and 81 and a pair of front and rear engaging pieces 83 (see FIG. 13).

図13に示すように、両嵌合片80,81は、左右方向を板厚方向としかつ相互に平行をなす四角形板状に形成されている(図10参照)。両嵌合片80,81の下端部には、前後方向の幅を狭くする嵌合凸部80a,81aが形成されている。左側の嵌合凸部80aは、右側の嵌合凸部81aの前後方向の幅よりも小さい幅で形成されている。   As shown in FIG. 13, both fitting pieces 80, 81 are formed in a quadrangular plate shape in which the horizontal direction is the plate thickness direction and are parallel to each other (see FIG. 10). Fitting protrusions 80a and 81a are formed at the lower ends of the fitting pieces 80 and 81 to reduce the width in the front-rear direction. The left fitting protrusion 80a is formed with a width smaller than the width of the right fitting protrusion 81a in the front-rear direction.

外側挟持部78には、両係合片83を取り囲むようにして上方へ凹む凹部85が形成されている(図9及び図11参照)。凹部85の天井面は、外側挟持部78の軸線に直交する平面に形成されている。このため、両係合片83は、凹部85の天井面から下方へ突出されている。両係合片83は、前後方向を板厚方向としかつ相互に平行をなす四角形板状に形成されている。係合片83の下部には、前後方向に貫通する横長四角孔状の係合孔部87が形成されている(図10及び図11参照)。係合孔部87の下側の内壁面には、被抜け止め面88が形成されている(図6参照)。被抜け止め面88は、外側挟持部78の軸線に直交する平面で形成されている。なお、両係合片83の外側面の下端部は、下方に向かって次第に左右方向に縮小するテーパ状に形成されている(図11参照)。また、係合片83の前後両側面の下端部は、下方に向かって次第に前後方向に縮小するテーパ状に形成されている(図9及び図10参照)。   The outer sandwiching portion 78 is formed with a recess 85 that is recessed upward so as to surround both the engaging pieces 83 (see FIGS. 9 and 11). The ceiling surface of the concave portion 85 is formed in a plane orthogonal to the axis of the outer sandwiching portion 78. Therefore, both engagement pieces 83 are projected downward from the ceiling surface of the recess 85. Both engagement pieces 83 are formed in a rectangular plate shape having a plate thickness direction in the front-rear direction and parallel to each other. An engaging hole portion 87 having a horizontally long quadrangular hole shape that penetrates in the front-rear direction is formed in the lower portion of the engaging piece 83 (see FIGS. 10 and 11). A retaining surface 88 is formed on the inner wall surface of the lower side of the engagement hole portion 87 (see FIG. 6). The retaining surface 88 is formed by a plane orthogonal to the axis of the outer sandwiching portion 78. In addition, the lower end portions of the outer side surfaces of both the engagement pieces 83 are formed in a tapered shape that gradually decreases in the left-right direction downward (see FIG. 11). Further, lower end portions of both front and rear side surfaces of the engaging piece 83 are formed in a taper shape that gradually shrinks in the front-rear direction downward (see FIGS. 9 and 10).

係合片83は、板厚方向(前後方向)に弾性変形いわゆる撓み変形可能に形成されている(図11中、二点鎖線83参照)。係合片83は、ボーン部材38の係合凸部73に対して弾性変形を利用してスナップフィット係合可能に形成されている。係合凸部73と係合片83とにより係合手段89が構成されている。係合凸部73は、本明細書でいう「係合部」に相当する。また、係合片83は、本明細書でいう「被係合部」に相当する。   The engagement piece 83 is formed so as to be elastically deformable in the plate thickness direction (front-back direction), that is, so-called flexural deformation (see the chain double-dashed line 83 in FIG. 11). The engagement piece 83 is formed so as to be snap-fit engageable with the engagement protrusion 73 of the bone member 38 by utilizing elastic deformation. The engagement convex portion 73 and the engagement piece 83 constitute an engagement means 89. The engagement protrusion 73 corresponds to the “engagement portion” in the present specification. The engagement piece 83 corresponds to the “engaged portion” in this specification.

次に、燃料フィルタ20の製造方法を説明する。まず、フィルタ部材36を形成する濾材50から説明する。図14は濾材を示す上面図である。図14に示すように、濾材50は、展開状態よりも一回り大きい横長四角形状に裁断されており、所定の位置には開口部53が形成されている。開口部53は、レーザー光を用いたレーザ溶断によって形成されている。これにより、開口部53の内周面を全面的に覆う溶融固化部54が形成されている。図15は濾材の孔あけ工程を示す断面図である。   Next, a method for manufacturing the fuel filter 20 will be described. First, the filter medium 50 forming the filter member 36 will be described. FIG. 14 is a top view showing the filter medium. As shown in FIG. 14, the filter medium 50 is cut into a horizontally long rectangular shape which is slightly larger than the expanded state, and an opening 53 is formed at a predetermined position. The opening 53 is formed by laser cutting using laser light. As a result, the melted and solidified portion 54 that entirely covers the inner peripheral surface of the opening portion 53 is formed. FIG. 15 is a cross-sectional view showing the step of making a hole in the filter medium.

図15に示すように、濾材50の開口予定部位90の周縁部を、上下一対のリング状の挟持治具91,92によって圧縮状態で挟持する。この状態で、上側の挟持治具91の内周面に沿ってレーザ光照射装置94によりレーザ光(図15中、矢印参照)を照射し、濾材50の開口予定部位90をレーザ溶断する。これにより、濾材50に開口部53が形成されるとともに、開口部53の内周面を全面的に覆う溶融固化部54が形成される(図14参照)。なお、両挟持治具91,92による濾材50の挟持を解放すると、濾材50が弾性復元することにより、開口部53の表裏面の開口縁部に面取り状の傾斜部53aが形成される(図10及び図11参照)。   As shown in FIG. 15, the peripheral edge of the planned opening portion 90 of the filter medium 50 is clamped in a compressed state by a pair of upper and lower ring-shaped clamping jigs 91 and 92. In this state, laser light (see the arrow in FIG. 15) is irradiated from the laser light irradiation device 94 along the inner peripheral surface of the upper holding jig 91 to laser-cut the planned opening portion 90 of the filter medium 50. As a result, the opening 53 is formed in the filter medium 50, and the melting and solidifying portion 54 that entirely covers the inner peripheral surface of the opening 53 is formed (see FIG. 14). When the sandwiching of the filter medium 50 by the sandwiching jigs 91 and 92 is released, the filter medium 50 elastically restores to form chamfered inclined portions 53a at the opening edges of the front and back surfaces of the opening 53 (Fig. 10 and FIG. 11).

次に、濾材50(図14参照)の折り曲げ部50cの右側の半分(上面部51aとなる部分)をボーン部材38の上面側に重ね、濾材50の開口部53をボーン部材38の接続部58上に同心状に配置する(図10及び図11参照)。続いて、濾材50の開口部53内に、その上方からボデー部材40の両係合片83及び両嵌合片80,81を挿入しつつ、ボーン部材38とボデー部材40とを対向方向に押圧する。   Next, the right half of the bent portion 50c of the filter medium 50 (see FIG. 14) (the portion which becomes the upper face portion 51a) is placed on the upper face side of the bone member 38, and the opening 53 of the filter medium 50 is connected to the connecting portion 58 of the bone member 38. Arranged concentrically on the top (see FIGS. 10 and 11). Subsequently, the bone member 38 and the body member 40 are pressed in opposite directions while inserting the both engagement pieces 83 and both fitting pieces 80, 81 of the body member 40 into the opening 53 of the filter medium 50 from above. To do.

これにより、ボーン部材38の左右の両嵌合溝70,71とボデー部材40の左右の両嵌合片80,81の嵌合凸部80a,81aとが嵌合される(図7参照)。これにより、ボーン部材38とボデー部材40とが前後方向に位置決めされる。また、ボーン部材38の貫通孔69内にボデー部材40の両係合片83がそれぞれ嵌合される(図7参照)。これにより、ボーン部材38とボデー部材40とが左右方向に位置決めされる。したがって、ボーン部材38とボデー部材40との接続部(接続部58及び被接続部62が相当する)が同一軸線上に位置決めされるとともに軸回り方向に回り止めされる。   As a result, the left and right fitting grooves 70, 71 of the bone member 38 and the fitting convex portions 80a, 81a of the left and right fitting pieces 80, 81 of the body member 40 are fitted (see FIG. 7). As a result, the bone member 38 and the body member 40 are positioned in the front-rear direction. Further, both engaging pieces 83 of the body member 40 are fitted in the through holes 69 of the bone member 38 (see FIG. 7). As a result, the bone member 38 and the body member 40 are positioned in the left-right direction. Therefore, the connecting portion (corresponding to the connecting portion 58 and the connected portion 62) between the bone member 38 and the body member 40 is positioned on the same axis and is prevented from rotating in the axial direction.

また、両係合片83の下端部が両係合凸部73の斜面74(図6参照)に当接しかつ摺動することにより、両係合片83が対向方向へ弾性変形させられる(図11中、二点鎖線83参照)。続いて、両係合片83の下端部が両係合凸部73を乗り越えると、両係合片83が弾性復元することによって、両係合孔部87と両係合凸部73とがスナップフィット係合される(図7参照)。これにより、ボーン部材38とボデー部材40とが濾材50を介して接続された半製品96が得られる(図16参照)。図16は燃料フィルタの半製品を示す平面図である。   Further, the lower ends of the two engaging pieces 83 contact and slide on the slopes 74 (see FIG. 6) of the engaging convex portions 73, whereby the engaging pieces 83 are elastically deformed in the opposite direction (FIG. 11 of 11, see the chain double-dashed line 83). Then, when the lower ends of the two engaging pieces 83 cross over the engaging convex portions 73, the elastic engagement of the engaging pieces 83 causes the engaging hole portions 87 and the engaging convex portions 73 to snap. Fit-engaged (see FIG. 7). As a result, a semi-finished product 96 in which the bone member 38 and the body member 40 are connected via the filter medium 50 is obtained (see FIG. 16). FIG. 16 is a plan view showing a semi-finished product of the fuel filter.

また、ボーン部材38の内側挟持部64とボデー部材40の外側挟持部78との間には、濾材50の開口部53の孔縁部55が軸方向すなわちスラスト方向に圧縮状態で挟持される(図4及び図5参照)。これにより、濾材50の孔縁部55がシールされる。なお、内側挟持部64と外側挟持部78とによって、フィルタ部材36の孔縁部55を挟持する「フィルタシール手段」が構成されている。なお、内側挟持部64の上面(67a,67bを含む)、及び、外側挟持部78の下面は本明細書でいう「フィルタ部材の開口部の孔縁部を挟持する面」に相当する。   Further, the hole edge portion 55 of the opening portion 53 of the filter medium 50 is sandwiched between the inner sandwiching portion 64 of the bone member 38 and the outer sandwiching portion 78 of the body member 40 in a compressed state in the axial direction, that is, the thrust direction ( (See FIGS. 4 and 5). As a result, the hole edge portion 55 of the filter medium 50 is sealed. The inner sandwiching portion 64 and the outer sandwiching portion 78 constitute “filter sealing means” that sandwiches the hole edge portion 55 of the filter member 36. The upper surface (including 67a and 67b) of the inner sandwiching portion 64 and the lower surface of the outer sandwiching portion 78 correspond to "a surface that sandwiches the hole edge portion of the opening of the filter member" in the present specification.

また、内側挟持部64の内周側の上面67aと外側挟持部78(詳しくは下面)との間の圧縮量をC1、内側挟持部64の環状凸部66と外側挟持部78との間の圧縮量をC2、内側挟持部64の外周側の上面67bと外側挟持部78(詳しくは下面)との間の圧縮量をC3とする。この場合、圧縮量C1,C2,C3の関係は、
C1<C3<C2
をなしている。
Further, the compression amount between the upper surface 67a on the inner peripheral side of the inner sandwiching portion 64 and the outer sandwiching portion 78 (specifically, the lower surface) is C1, and the amount of compression between the annular convex portion 66 of the inner sandwiching portion 64 and the outer sandwiching portion 78 is set. The amount of compression is C2, and the amount of compression between the upper surface 67b on the outer peripheral side of the inner holding portion 64 and the outer holding portion 78 (specifically, the lower surface) is C3. In this case, the relationship between the compression amounts C1, C2, C3 is
C1 <C3 <C2
Is playing.

また、濾材50の孔縁部55における弾性反力が、内側挟持部64と外側挟持部78との相反方向に作用することにより、係合凸部73の抜け止め面75と係合孔部87の被抜け止め面88とが面接触状に当接した状態に保持される(図6参照)。これにより、ボーン部材38とボデー部材40とが軸方向(スラスト方向)に抜け止めされる。また、抜け止め面75と被抜け止め面88とが面接触状に当接することにより、内側挟持部64と外側挟持部78との間に生じるがたつきを抑制することができる。また、係合凸部73の基部側に形成された逃がし面76と係合孔部87の被抜け止め面88との間には隙間98が形成される(図6参照)。   Further, the elastic reaction force at the hole edge portion 55 of the filter medium 50 acts in the opposite directions of the inner sandwiching portion 64 and the outer sandwiching portion 78, so that the retaining surface 75 of the engaging convex portion 73 and the engaging hole portion 87. The retaining surface 88 is held in surface contact with the retaining surface 88 (see FIG. 6). As a result, the bone member 38 and the body member 40 are prevented from coming off in the axial direction (thrust direction). Further, since the retaining surface 75 and the retained surface 88 are in surface contact with each other, rattling that occurs between the inner holding portion 64 and the outer holding portion 78 can be suppressed. Further, a gap 98 is formed between the relief surface 76 formed on the base side of the engaging convex portion 73 and the retaining surface 88 of the engaging hole portion 87 (see FIG. 6).

次に、半製品96(図16参照)の濾材50が折り曲げ部50cに沿って二つ折りされる。すなわち、濾材50の折り曲げ部50cの左側の半分(下面部51bとなる部分)がボーン部材38の下側へ折り返され、ボーン部材38の下面側に重ねられる。続いて、濾材50の上面部51aと下面部51bとの外周縁部同士が溶着(溶着部52参照)により接合されることによって、袋形状のフィルタ部材36が形成される(図3〜図5参照)。このようにして、燃料フィルタ20が製造される。なお、フィルタ部材36の外部と区画された内部空間37は、ボーン部材38の隣接する支持突起65の相互間の空間部、貫通孔69内の空間部、及び、ボデー部材40の筒状部60の中空部を介して外部と連通される(図4及び図5参照)。   Next, the filter medium 50 of the semi-finished product 96 (see FIG. 16) is folded in two along the bent portion 50c. That is, the left half of the bent portion 50c of the filter medium 50 (the portion that becomes the lower surface portion 51b) is folded back to the lower side of the bone member 38 and overlapped on the lower surface side of the bone member 38. Subsequently, the bag-shaped filter member 36 is formed by joining the outer peripheral edge portions of the upper surface portion 51a and the lower surface portion 51b of the filter medium 50 by welding (see the welding portion 52) (FIGS. 3 to 5). reference). In this way, the fuel filter 20 is manufactured. The internal space 37 that is partitioned from the outside of the filter member 36 is a space between the adjacent support protrusions 65 of the bone member 38, a space inside the through hole 69, and a tubular portion 60 of the body member 40. It is communicated with the outside through the hollow portion (see FIGS. 4 and 5).

前記した燃料フィルタ20において、ボデー部材40の装着部61が、燃料ポンプモジュール10のポンプ保持部材16にスナップフィット係合等によって取付けられる(図1及び図2参照)。これにともない、ポンプ保持部材16の吸入ポート32がボデー部材40の接続口63に接続されることによって、燃料ポンプ18(図2参照)の燃料吸入側がフィルタ部材36の内部空間37と連通される(図4及び図5参照)。   In the fuel filter 20 described above, the mounting portion 61 of the body member 40 is attached to the pump holding member 16 of the fuel pump module 10 by snap-fit engagement or the like (see FIGS. 1 and 2). Accordingly, the suction port 32 of the pump holding member 16 is connected to the connection port 63 of the body member 40, so that the fuel suction side of the fuel pump 18 (see FIG. 2) communicates with the internal space 37 of the filter member 36. (See FIGS. 4 and 5).

また、燃料ポンプ18の作動によって、その燃料ポンプ18に吸入される燃料タンク12内の燃料は、フィルタ部材36により濾過される。また、ボデー部材40の内側挟持部64とボーン部材38の外側挟持部78との間でフィルタ部材36の開口部53の孔縁部55がシールされている。このため、燃料タンク12内の燃料が、ボーン部材38の外側挟持部78とフィルタ部材36の開口部53の孔縁部55との間を抜けて、ボデー部材40の筒状部60内へ流入することが抑制される。すなわち、燃料ポンプ18への未濾過燃料の流入を抑制することができる。   Further, by the operation of the fuel pump 18, the fuel in the fuel tank 12 drawn into the fuel pump 18 is filtered by the filter member 36. Further, the hole edge portion 55 of the opening portion 53 of the filter member 36 is sealed between the inner sandwiching portion 64 of the body member 40 and the outer sandwiching portion 78 of the bone member 38. Therefore, the fuel in the fuel tank 12 passes through between the outer sandwiching portion 78 of the bone member 38 and the hole edge portion 55 of the opening portion 53 of the filter member 36 and flows into the tubular portion 60 of the body member 40. Is suppressed. That is, the flow of unfiltered fuel into the fuel pump 18 can be suppressed.

前記した燃料フィルタ20によると、ボーン部材38の両係合凸部73とボデー部材40の係合片83とからなる係合手段89がスナップフィット係合される。これによって、ボーン部材38とボデー部材40とが接続されるとともに、ボーン部材38の内側挟持部64とボデー部材40の外側挟持部78との間にフィルタ部材36の開口部53の孔縁部55が軸方向(スラスト方向)に挟持される。   According to the fuel filter 20 described above, the engagement means 89 including both the engagement protrusions 73 of the bone member 38 and the engagement pieces 83 of the body member 40 is snap-fit engaged. As a result, the bone member 38 and the body member 40 are connected, and the hole edge portion 55 of the opening 53 of the filter member 36 is provided between the inner holding portion 64 of the bone member 38 and the outer holding portion 78 of the body member 40. Are clamped in the axial direction (thrust direction).

また、係合手段89は、ボーン部材38に設けられかつかつフィルタ部材36の挟持方向と交差する方向に延在する抜け止め面75を有する係合凸部73と、ボデー部材40に設けられかつ抜け止め面75と対面状に係合する被抜け止め面88を有する係合片83とからなる。このため、係合凸部73の抜け止め面75と係合片83の被抜け止め面88とが対面状に係合することによって、係合凸部73と係合片83との間のがたつき、特にフィルタ部材36の開口部53の軸方向のがたつきを抑制することができる。また、係合凸部73と係合片83とは、形状が簡素であるため、寸法管理が容易であり、精度良くスナップフィット係合させることができる。したがって、従来例と異なり、フィルタ部材36の開口部53の孔縁部55を円筒状に折り曲げる必要がなくなる。このため、ボーン部材38とボデー部材40との接続にかかる軸方向長さを短縮することができる。ひいては、フィルタ部材36の厚さ36t(図4参照)を低減し、燃料フィルタ20を小型化することができる。   Further, the engagement means 89 is provided on the bone member 38 and has an engagement projection 73 having a retaining surface 75 extending in a direction intersecting with the sandwiching direction of the filter member 36, and the engagement member 89 is provided on the body member 40 and is detached. The retaining surface 75 and the engaging piece 83 having the retaining surface 88 that engages face-to-face. Therefore, the retaining surface 75 of the engaging convex portion 73 and the retained surface 88 of the engaging piece 83 engage with each other in a face-to-face manner, so that there is a gap between the engaging convex portion 73 and the engaging piece 83. It is possible to suppress rattling, particularly rattling of the opening 53 of the filter member 36 in the axial direction. Further, since the engaging convex portion 73 and the engaging piece 83 have a simple shape, the dimensional management is easy, and the snap-fit engagement can be performed accurately. Therefore, unlike the conventional example, it is not necessary to bend the hole edge portion 55 of the opening portion 53 of the filter member 36 into a cylindrical shape. Therefore, the axial length required for connecting the bone member 38 and the body member 40 can be shortened. As a result, the thickness 36t (see FIG. 4) of the filter member 36 can be reduced, and the fuel filter 20 can be downsized.

また、係合凸部73及び係合片83は、形状が簡素であるため、燃料フィルタ20の小型化及びコスト低減に有利である。また、係合凸部73及び係合片83の寸法管理が容易になることで、係合にかかる寸法精度がよくなる。また、一定の寸法管理を必要とする内側挟持部64と係合手段89とを水平方向に並列的に配置することができる。このことは、フィルタ部材36の厚さ36t(図4参照)の低減に有利である。   Further, since the engaging projections 73 and the engaging pieces 83 are simple in shape, they are advantageous in reducing the size and cost of the fuel filter 20. In addition, the dimensional accuracy of the engagement is improved because the dimensional management of the engagement protrusion 73 and the engagement piece 83 is facilitated. Further, the inner sandwiching portion 64 and the engaging means 89, which require a certain dimensional control, can be arranged in parallel in the horizontal direction. This is advantageous for reducing the thickness 36t (see FIG. 4) of the filter member 36.

また、両嵌合溝70,71を含む貫通孔69と、両嵌合凸部80a,81aを含む両嵌合片80,81とを嵌合しつつ、係合手段89の係合凸部73と係合片83とを係合させることができる。このため、ボーン部材38とボデー部材40との組み付けを容易に行うことができる。例えば、従来例(図20参照)の係合手段によると、内筒部216と外筒部218とをずっこけない位置関係を保って係合しなければならず、高い組み付け精度が要求される。これに対し、本実施形態によると、高い組み付け精度が要求されないため、ボーン部材38とボデー部材40との組み付けを容易に行うことができる。   In addition, while engaging the through-hole 69 including both fitting grooves 70 and 71 and both fitting pieces 80 and 81 including both fitting projections 80a and 81a, the engaging projection 73 of the engaging means 89. And the engaging piece 83 can be engaged with each other. Therefore, the bone member 38 and the body member 40 can be easily assembled. For example, according to the engagement means of the conventional example (see FIG. 20), the inner cylindrical portion 216 and the outer cylindrical portion 218 must be engaged with each other while maintaining a positional relationship that does not move out of alignment, and high assembly accuracy is required. On the other hand, according to the present embodiment, since high assembly accuracy is not required, the bone member 38 and the body member 40 can be easily assembled.

また、係合凸部73は、係合片83の被抜け止め面88に当接する被抜け止め面88を先端部に有する鉤爪状に形成されており、係合凸部73の抜け止め面75よりも基部側には、係合片83の被抜け止め面88との間に隙間98を形成する逃がし面76が形成されている(図6参照)。したがって、係合凸部73と係合片83との係合状態において、ボーン部材38とボデー部材40との間に抜け方向の荷重(図6中、矢印F1参照)が作用した場合、係合凸部73の抜け止め面75に対する係合片83の被抜け止め面88の荷重の重心を被抜け止め面88の奥側(図6において右側)に設定することができる。これにより、ボーン部材38とボデー部材40との間の抜け方向の荷重によるモーメント(図6中、矢印F2参照)を低減することができる。したがって、係合手段89の係合片83の係合解除方向への弾性変形を抑制し、ボーン部材38に対するボデー部材40の抜け外れを抑制することができる。このことは、係合凸部73及び係合片83の小型化に有利である。   Further, the engagement convex portion 73 is formed in the shape of a claw having a retaining surface 88 that comes into contact with the retaining surface 88 of the engaging piece 83 at the tip, and the retaining surface 75 of the engaging protrusion 73. A relief surface 76 that forms a gap 98 between the engagement piece 83 and the retaining surface 88 of the engagement piece 83 is formed on the base side (see FIG. 6). Therefore, in the engaged state of the engaging convex portion 73 and the engaging piece 83, when a load in the pull-out direction (see arrow F1 in FIG. 6) acts between the bone member 38 and the body member 40, the engagement is performed. The center of gravity of the load of the retaining surface 88 of the engagement piece 83 with respect to the retaining surface 75 of the convex portion 73 can be set on the inner side (right side in FIG. 6) of the retaining surface 88. As a result, the moment (see arrow F2 in FIG. 6) due to the load in the pull-out direction between the bone member 38 and the body member 40 can be reduced. Therefore, it is possible to suppress elastic deformation of the engaging piece 83 of the engaging means 89 in the disengagement direction, and to prevent the body member 40 from coming off from the bone member 38. This is advantageous for downsizing the engagement protrusion 73 and the engagement piece 83.

詳しくは、一般的なスナップフィット係合の場合、係合凸部と係合孔部との面接触状のかかり代k(図6参照)は、小さい程、組付け時の係合片の弾性変形量(撓み量)が小さい。このため、係合片の撓み長(図6中、83L参照)を短縮することができ、小型化に有利になる。しかし、係合凸部と係合孔部との間に抜け方向の荷重(図6中、矢印F1参照)が作用した場合、係合凸部と係合孔部との間にモーメント(図6中、矢印F2参照)がかかり、係合片の少ない撓み量で係合が解除されることになる。そこで、係合凸部と係合孔部とのかかり代kを大きくし、それに伴って、係合片の撓み長(図6中、83L参照)を長くする必要があるため、小型化には不利である。   Specifically, in the case of general snap-fit engagement, the smaller the surface contacting clearance k (see FIG. 6) between the engagement protrusion and the engagement hole, the smaller the elasticity of the engagement piece during assembly. Deformation amount (deflection amount) is small. Therefore, the bending length of the engagement piece (see 83L in FIG. 6) can be shortened, which is advantageous for downsizing. However, when a load in the detaching direction (see arrow F1 in FIG. 6) is applied between the engagement protrusion and the engagement hole, a moment (FIG. 6) is generated between the engagement protrusion and the engagement hole. (See arrow F2 in the middle), and the engagement is released with a small amount of bending of the engaging piece. Therefore, it is necessary to increase the margin k between the engagement protrusion and the engagement hole, and accordingly to increase the bending length (see 83L in FIG. 6) of the engagement piece, which is required for downsizing. It is a disadvantage.

そこで、本実施形態では、係合凸部73に逃がし面76を形成することにより、係合凸部73と係合片83とのかかり代Kを低減し、かつ、荷重重心を被抜け止め面88の奥側(図6において右側)に設定している。これにより、係合凸部73と係合孔部87との間に作用する抜け方向の荷重(図6中、矢印F1参照)によるモーメント(図6中、矢印F2参照)による係合片83の係合解除方向への弾性変形を抑制することができる。したがって、係合片83の撓み長83Lを短くしつつ、係合凸部73と係合片83との係合を解除しにくくすることができる。   Therefore, in the present embodiment, by forming the relief surface 76 on the engaging convex portion 73, the engagement margin K between the engaging convex portion 73 and the engaging piece 83 is reduced, and the center of gravity of the load is prevented from coming off. It is set on the back side of 88 (right side in FIG. 6). As a result, the engagement piece 83 is moved by the moment (see arrow F2 in FIG. 6) due to the load (see arrow F1 in FIG. 6) acting in the pull-out direction acting between the engagement protrusion 73 and the engagement hole 87. Elastic deformation in the disengagement direction can be suppressed. Therefore, it is possible to make it difficult to release the engagement between the engagement protrusion 73 and the engagement piece 83 while reducing the bending length 83L of the engagement piece 83.

また、フィルタ部材36の開口部53の内周面が溶融固化部54によって全面的に覆われている(図6参照)。このため、フィルタ部材36の孔縁部55から開口部53内への燃料の流入を抑制し、その燃料の流入にともなうフィルタ部材36の開口部53の内周面からの異物の流入を抑制することができる。ひいては、燃料ポンプ18側への異物の侵入を抑制することができる。なお、フィルタ部材36が不織布製の場合であれば、繊維屑が異物に相当する。   Further, the inner peripheral surface of the opening 53 of the filter member 36 is entirely covered with the melt-solidified portion 54 (see FIG. 6). Therefore, the inflow of fuel from the hole edge portion 55 of the filter member 36 into the opening 53 is suppressed, and the inflow of foreign matter from the inner peripheral surface of the opening 53 of the filter member 36 due to the inflow of fuel is suppressed. be able to. As a result, foreign matter can be prevented from entering the fuel pump 18 side. If the filter member 36 is made of non-woven fabric, the fiber waste corresponds to the foreign matter.

また、濾材50に対するレーザ溶断によって、開口部53と溶融固化部54とを同時に形成することができる。このため、開口部53と溶融固化部54とを別工程で行う場合と比べて、生産効率を向上することができる。   Further, the opening portion 53 and the melted and solidified portion 54 can be formed at the same time by laser cutting the filter medium 50. Therefore, the production efficiency can be improved as compared with the case where the opening 53 and the melting and solidifying section 54 are performed in separate steps.

また、ボーン部材38の内側挟持部64の上面には、フィルタ部材36の孔縁部55の一部を押圧するための環状凸部66が形成されている。したがって、環状凸部66によって、フィルタ部材36の孔縁部55の一部を強く押圧することができる。このため、フィルタ部材36の孔縁部55の位置ずれを抑制することができる。また、環状凸部66が内側挟持部64の上面に同心状に形成されているため、フィルタ部材36の孔縁部55のシール性を向上することができる。なお、環状凸部66は本明細書でいう「押圧凸部」に相当する。   In addition, an annular convex portion 66 for pressing a part of the hole edge portion 55 of the filter member 36 is formed on the upper surface of the inner sandwiching portion 64 of the bone member 38. Therefore, a part of the hole edge portion 55 of the filter member 36 can be strongly pressed by the annular convex portion 66. Therefore, the positional deviation of the hole edge portion 55 of the filter member 36 can be suppressed. Moreover, since the annular convex portion 66 is formed concentrically on the upper surface of the inner sandwiching portion 64, the sealing performance of the hole edge portion 55 of the filter member 36 can be improved. The annular convex portion 66 corresponds to the “pressing convex portion” in this specification.

[実施形態2]本実施形態は、実施形態1に変更を加えたものであるから、その変更部分について説明し、重複する説明は省略する。図17は燃料フィルタを示す正断面図である。図17に示すように、本実施形態では、ボーン部材38の内側挟持部64の上面が、内周側の上面67aと同一面をなす一平面で形成されている。このため、実施形態1(図4参照)における環状凸部66及び外周側の上面67bが省略されている。この場合、ボーン部材38において、内側挟持部64における上面67aが本明細書でいう「フィルタ部材の開口部の孔縁部を挟持する面」に相当する。 [Second Embodiment] Since the present embodiment is a modification of the first embodiment, only the changed part will be described and the duplicated description will be omitted. FIG. 17 is a front sectional view showing the fuel filter. As shown in FIG. 17, in the present embodiment, the upper surface of the inner sandwiching portion 64 of the bone member 38 is formed as a flat surface that is flush with the upper surface 67a on the inner peripheral side. Therefore, the annular convex portion 66 and the outer peripheral side upper surface 67b in the first embodiment (see FIG. 4) are omitted. In this case, in the bone member 38, the upper surface 67a of the inner sandwiching portion 64 corresponds to the "surface that sandwiches the hole edge portion of the opening portion of the filter member" in this specification.

[実施形態3]本実施形態は、実施形態2に変更を加えたものであるから、その変更部分について説明し、重複する説明は省略する。図18は燃料フィルタを示す正断面図である。図18に示すように、本実施形態では、実施形態2(図17参照)におけるボデー部材40の外側挟持部78の下面の外周部に、下方へ突出する円環状の挟持凸部100が形成されている。挟持凸部100は、ボーン部材38の内側挟持部64の上面の外周部に対向している。挟持凸部100は、例えば、断面四角形状に形成されている。なお、挟持凸部100は本明細書でいう「押圧凸部」に相当する。 [Third Embodiment] Since the present embodiment is a modification of the second embodiment, only the changed part will be described and the duplicated description will be omitted. FIG. 18 is a front sectional view showing the fuel filter. As shown in FIG. 18, in the present embodiment, an annular holding convex portion 100 projecting downward is formed on the outer peripheral portion of the lower surface of the outer holding portion 78 of the body member 40 in the second embodiment (see FIG. 17). ing. The sandwiching convex portion 100 faces the outer peripheral portion of the upper surface of the inner sandwiching portion 64 of the bone member 38. The sandwiching convex portion 100 is formed, for example, in a rectangular cross section. The sandwiching convex portion 100 corresponds to the “pressing convex portion” in this specification.

[実施形態4]本実施形態は、実施形態2に変更を加えたものであるから、その変更部分について説明し、重複する説明は省略する。図19は燃料フィルタを示す正断面図である。図19に示すように、本実施形態では、実施形態2におけるボーン部材38の内側挟持部64の上面の外周部に、上方へ突出する円環状の支持凸部102が形成されている。支持凸部102は、ボデー部材40の外側挟持部78の下面の外周部に対向している。支持凸部102は、例えば、断面四角形状に形成されている。なお、支持凸部102は本明細書でいう「押圧凸部」に相当する。 [Fourth Embodiment] Since the present embodiment is a modification of the second embodiment, only the changed parts will be described and the duplicated description will be omitted. FIG. 19 is a front sectional view showing the fuel filter. As shown in FIG. 19, in the present embodiment, an annular support convex portion 102 that projects upward is formed on the outer peripheral portion of the upper surface of the inner sandwiching portion 64 of the bone member 38 in the second embodiment. The support convex portion 102 faces the outer peripheral portion of the lower surface of the outer sandwiching portion 78 of the body member 40. The support convex portion 102 is formed, for example, in a rectangular cross section. The support protrusion 102 corresponds to the “press protrusion” in this specification.

[他の実施形態]本発明は上記した実施形態に限定されるものではなく、本発明を逸脱しない範囲における変更が可能である。例えば、本発明の燃料フィルタ20は、車両に限らず、船舶、産業機械等、種々の燃料ポンプモジュールの燃料フィルタに適用してもよい。また、燃料フィルタ20は、燃料タンク12の底面部に装着される底付けタイプの燃料ポンプモジュール10に適用してもよい。また、燃料フィルタ20は、燃料タンク12内の燃料吸入側が連通されるものであればよい。このため、例えば、燃料ポンプ18の燃料吸入口が、ボデー部材40の接続口63に、ポンプ保持部材16の吸入ポート32をを介することなく、直接的に接続されてもよい。 [Other Embodiments] The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the present invention. For example, the fuel filter 20 of the present invention is not limited to vehicles, but may be applied to fuel filters of various fuel pump modules such as ships and industrial machines. The fuel filter 20 may be applied to the bottom-mounted fuel pump module 10 mounted on the bottom surface of the fuel tank 12. Further, the fuel filter 20 may be one in which the fuel intake side in the fuel tank 12 is in communication. Therefore, for example, the fuel intake port of the fuel pump 18 may be directly connected to the connection port 63 of the body member 40 without the intake port 32 of the pump holding member 16.

また、係合手段89は、1組又は3組以上設けてもよい。また、係合手段89の係合凸部73と係合片83とは、逆配置すなわち係合凸部73を被接続部62に配置し、係合片83を接続部58に配置してもよい。また、係合手段89の係合凸部73と係合片83とは、係合片83の弾性変形を利用してスナップフィット係合させる他、係合凸部73側の弾性変形を利用してスナップフィット係合させてもよいし、係合片83と係合凸部73側との両方の弾性変形を利用してスナップフィット係合させてもよい。また、係合片83の係合孔部87は、係合片83を貫通しない係合穴部に代えてもよい。また、係合凸部73の逃がし面76は省略してもよい。   Further, the engagement means 89 may be provided in one set or three or more sets. Further, the engaging protrusion 73 and the engaging piece 83 of the engaging means 89 are arranged in reverse, that is, the engaging protrusion 73 is arranged in the connected portion 62 and the engaging piece 83 is arranged in the connecting portion 58. Good. Further, the engaging projection 73 of the engaging means 89 and the engaging piece 83 are snap-fit engaged by utilizing the elastic deformation of the engaging piece 83, and the elastic deformation on the side of the engaging projection 73 is utilized. Snap-fit engagement may be performed, or snap-fit engagement may be performed by utilizing elastic deformation of both the engagement piece 83 and the engagement convex portion 73 side. Further, the engagement hole portion 87 of the engagement piece 83 may be replaced with an engagement hole portion that does not penetrate the engagement piece 83. Further, the relief surface 76 of the engaging convex portion 73 may be omitted.

また、フィルタ部材36は、袋形状であればよく、その外形形状は限定されない。また、フィルタ部材36に対するボーン部材38とボデー部材40との接続部の軸方向を変更してもよい。このため、例えば、水平面に沿う扁平なフィルタ部材36に対するボーン部材38とボデー部材40との接続部の軸方向を水平方向としてもよい。また、ボーン部材38のフレームリブ57は、ベースフレーム56の両面に突出してもよい。また、実施形態では、1枚の濾材50を二つ折りして周縁部同士を溶着したが、2枚の濾材の周縁部同士を全周に亘って溶着してもよい。また、濾材50には、開口部53と溶融固化部54とを別工程で形成してもよい。また、押圧凸部は、ボーン部材38の内側挟持部64の上面、及び、ボデー部材40外側挟持部78の下面に形成してもよい。また、押圧凸部の形状は、円環状以外の形状、例えば、楕円形状、C字形状、渦巻き形状に形成してもよいし、あるいは、突起形状として分散的に複数配置してもよい。また、押圧凸部の断面形状は、四角形、三角形、半円形等のように任意の形状に変更してもよい。   Further, the filter member 36 may have a bag shape, and its outer shape is not limited. Further, the axial direction of the connecting portion of the bone member 38 and the body member 40 with respect to the filter member 36 may be changed. Therefore, for example, the axial direction of the connecting portion of the bone member 38 and the body member 40 with respect to the flat filter member 36 along the horizontal plane may be horizontal. Further, the frame ribs 57 of the bone member 38 may project on both sides of the base frame 56. Further, in the embodiment, one filter medium 50 is folded in two and the peripheral edge portions are welded to each other, but the peripheral edge portions of the two filter media may be welded over the entire circumference. Further, the opening 53 and the melt-solidified portion 54 may be formed in the filter medium 50 in separate steps. Further, the pressing convex portion may be formed on the upper surface of the inner sandwiching portion 64 of the bone member 38 and the lower surface of the outer sandwiching portion 78 of the body member 40. Further, the shape of the pressing convex portion may be formed in a shape other than an annular shape, for example, an elliptical shape, a C shape, or a spiral shape, or a plurality of protruding shapes may be arranged dispersively. Moreover, the cross-sectional shape of the pressing convex portion may be changed to any shape such as a quadrangle, a triangle, and a semicircle.

10 燃料ポンプモジュール
18 燃料ポンプ
20 燃料フィルタ
36 フィルタ部材
37 内部空間
38 ボーン部材
40 ボデー部材
53 開口部
54 溶融固化部
55 孔縁部
58 接続部
62 被接続部
66 環状凸部(押圧凸部)
73 係合凸部(係合部)
75 抜け止め面
76 逃がし面
83 係合片(被係合部)
88 被抜け止め面
89 係合手段
98 隙間
100 挟持凸部(押圧凸部)
102 支持凸部(押圧凸部)
10 Fuel Pump Module 18 Fuel Pump 20 Fuel Filter 36 Filter Member 37 Internal Space 38 Bone Member 40 Body Member 53 Opening 54 Melting and Solidifying Part 55 Hole Edge 58 Connection Part 62 Connected Part 66 Annular Convex Part (Pressing Convex Part)
73 Engagement convex part (engagement part)
75 retaining surface 76 relief surface 83 engaging piece (engaged portion)
88 retaining surface 89 engaging means 98 gap 100 clamping projection (press projection)
102 support protrusion (press protrusion)

Claims (4)

開口部を有する袋形状に形成されかつ燃料ポンプに吸入される燃料を濾過するフィルタ部材と、
前記フィルタ部材を膨大状態に保持するボーン部材と、
前記ボーン部材に接続されかつ前記フィルタ部材の内部空間を前記開口部を介して外部と連通するボデー部材と、
を備える燃料フィルタであって、
前記ボーン部材と前記ボデー部材との間には、前記フィルタ部材の開口部の孔縁部を挟持した状態でスナップフィット係合可能な係合手段が設けられており、
前記係合手段は、前記ボーン部材に設けられかつ前記フィルタ部材の挟持方向と交差する方向に延在する抜け止め面を有する係合部と、前記ボデー部材に設けられかつ前記抜け止め面と対面状に係合する被抜け止め面を有する被係合部とからなり、
前記係合部は、前記被係合部の被抜け止め面に当接する前記抜け止め面を先端部に有する鉤爪状に形成されており、
前記係合部の抜け止め面よりも基部側には、前記被係合部の被抜け止め面との間に隙間を形成する逃がし面が形成されている、燃料フィルタ。
A filter member formed in a bag shape having an opening and filtering fuel sucked into the fuel pump;
A bone member that holds the filter member in an enormous state,
A body member that is connected to the bone member and that communicates the internal space of the filter member with the outside through the opening,
A fuel filter comprising:
Between the bone member and the body member, there is provided an engagement means capable of snap-fit engagement with the hole edge portion of the opening of the filter member being sandwiched,
The engaging means is provided on the bone member and has an engaging portion having a retaining surface extending in a direction intersecting the holding direction of the filter member; and an engaging portion provided on the body member and facing the retaining surface. consists of a engaged portion with the stopper surface which engages the Jo,
The engaging portion is formed in a claw shape having a tip portion having the retaining surface that comes into contact with the retaining surface of the engaged portion,
A fuel filter having a relief surface that forms a gap between the engagement portion and the retaining surface of the engaged portion, the portion being closer to the base portion than the retaining surface .
請求項1に記載の燃料フィルタであって、
前記被係合部は、前記開口部の径方向内方へ弾性変形可能に形成されている、燃料フィルタ。
The fuel filter according to claim 1, wherein
The engaged portion is a fuel filter that is elastically deformable inward in the radial direction of the opening .
請求項1又は2に記載の燃料フィルタであって、
前記フィルタ部材には、前記開口部の内周面を全面的に覆う溶融固化部が形成されている、燃料フィルタ。
The fuel filter according to claim 1 or 2, wherein
The fuel filter, wherein the filter member has a melted and solidified portion that entirely covers the inner peripheral surface of the opening.
請求項1〜3のいずれか1つに記載の燃料フィルタであって、
前記ボーン部材と前記ボデー部材との少なくとも一方の部材において、前記フィルタ部材の開口部の孔縁部を挟持する面には、その孔縁部の一部を押圧するための押圧凸部が形成されている、燃料フィルタ。
The fuel filter according to any one of claims 1 to 3, wherein:
In at least one of the bone member and the body member, a pressing convex portion for pressing a part of the hole edge is formed on a surface of the opening of the filter member that holds the hole edge. Has a fuel filter.
JP2016222982A 2016-11-16 2016-11-16 Fuel filter Active JP6695782B2 (en)

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