JP2014136970A - Fuel filter attachment structure - Google Patents

Fuel filter attachment structure Download PDF

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JP2014136970A
JP2014136970A JP2013004530A JP2013004530A JP2014136970A JP 2014136970 A JP2014136970 A JP 2014136970A JP 2013004530 A JP2013004530 A JP 2013004530A JP 2013004530 A JP2013004530 A JP 2013004530A JP 2014136970 A JP2014136970 A JP 2014136970A
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engagement
fuel
fuel filter
filter
pump
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JP5917419B2 (en
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Masanori Morita
正紀 森田
Tao Jian
涛 姜
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Aisan Industry Co Ltd
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Aisan Industry Co Ltd
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  • Fuel-Injection Apparatus (AREA)

Abstract

PROBLEM TO BE SOLVED: To narrow a space required to replace a fuel filter and simplify a replacement operation.SOLUTION: A fuel filter attachment structure includes: a pump-side tubular member 50 provided on a side of a fuel pump 24; a filter-side tubular member 60 provided on a side of a fuel filter 30; and first engagement means K1 and second engagement means K2 provided between the pump-side tubular member 50 and the filter-side tubular member 60. The first engagement means K1 is constituted by a first engagement concave portion and a first engagement convex portion so as to be disengageably engaged with each other and so that an angle θ formed between axes of connection ports of the two tubular members 50 and 60 is variable. The second engagement means K2 is constituted by a second engagement concave portion and a second engagement convex portion disengageably engaged with each other and elastically engageable with each other. The tubular members 50 and 60 are rotated with an engagement portion between the first engagement concave portion and the first engagement convex portion set as a fulcrum in a direction in which the angle θ formed between the axes of the connection ports thereof is smaller. By doing so, the connection ports of the tubular members 50 and 60 are connected to each other and the second engagement concave portion is elastically engaged with the second convex portion.

Description

本発明は、燃料ポンプに燃料フィルタを着脱可能に接続する燃料フィルタの取付構造に関する。   The present invention relates to a fuel filter mounting structure in which a fuel filter is detachably connected to a fuel pump.

燃料ポンプに燃料フィルタを着脱可能に接続する燃料フィルタの取付構造としては、例えば特許文献1に記載されたものがある。特許文献1のものでは、燃料ポンプに圧入されたラバーマウントがバンドで締付けられている。また、燃料フィルタに、直管状の接続口と固定軸とを平行状に有するフレームが装着されている。燃料ポンプ側のラバーマウントに燃料フィルタ側の接続口をその軸方向に圧入するとともに、バンドの挿入孔に燃料フィルタ側の固定軸をその弾性変形を利用して差し込んで固定する構成となっている。   An example of a fuel filter mounting structure in which a fuel filter is detachably connected to a fuel pump is disclosed in Patent Document 1. In the thing of patent document 1, the rubber mount press-fitted into the fuel pump is fastened with a band. Further, a frame having a straight tubular connection port and a fixed shaft in parallel is mounted on the fuel filter. The fuel filter side connection port is press-fitted in the axial direction of the fuel pump side rubber mount, and the fuel filter side fixed shaft is inserted into the insertion hole of the band using its elastic deformation and fixed. .

実開平1−158551号公報Japanese Utility Model Publication No. 1-158551

前記特許文献1のものによると、燃料フィルタの交換に際し、燃料ポンプ側のラバーマウントに対して燃料フィルタを接続口の圧入長さ分に応じて直線方向(接続口の軸方向)へ移動させることになる。このため、燃料フィルタの移動スペースが広いため、交換作業の煩雑化を招くという問題があった。
本発明が解決しようとする課題は、燃料フィルタの交換に要するスペースを狭小化し、交換作業を簡素化することにある。
According to the above-mentioned patent document 1, when the fuel filter is replaced, the fuel filter is moved in a linear direction (axial direction of the connection port) according to the press-fit length of the connection port with respect to the rubber mount on the fuel pump side. become. For this reason, since the movement space of the fuel filter is large, there is a problem that the replacement work becomes complicated.
The problem to be solved by the present invention is to narrow the space required for replacement of the fuel filter and simplify the replacement work.

上記の課題は、以下の各発明により解決される。
第1の発明は、燃料ポンプに燃料フィルタを着脱可能に接続する燃料フィルタの取付構造であって、燃料ポンプ側に設けたポンプ側管部材と、燃料フィルタ側に設けたフィルタ側管部材と、ポンプ側管部材とフィルタ側管部材との間に設けられた第1係合手段及び第2係合手段とを備え、第1係合手段は、相互に係脱可能でかつ両管部材の接続口の軸線のなす角度が可変となるように係合可能な第1係合凹部と第1係合凸部とにより構成され、第2係合手段は、相互に係脱可能でかつ弾性的に係合可能な第2係合凹部と第2係合凸部とにより構成され、第1係合手段の第1係合凹部と第1係合凸部との係合部を支点とする両管部材の接続口の軸線のなす角度が小さくなる方向への回動により、両管部材の接続口が接続されるとともに第2係合手段の第2係合凹部と第2係合凸部とが弾性的に係合される構成としたものである。
Said subject is solved by each following invention.
A first invention is a fuel filter mounting structure for detachably connecting a fuel filter to a fuel pump, a pump side pipe member provided on the fuel pump side, a filter side pipe member provided on the fuel filter side, A first engagement means and a second engagement means provided between the pump side pipe member and the filter side pipe member, the first engagement means being detachable from each other and connecting the two pipe members The first engagement recess and the first engagement projection are engageable so that the angle formed by the axis of the mouth is variable, and the second engagement means is detachable from each other and elastically. Both pipes constituted by a second engaging concave portion and a second engaging convex portion that can be engaged, and having the engaging portion between the first engaging concave portion and the first engaging convex portion of the first engaging means as a fulcrum. The connection port of both pipe members is connected and the second engagement is made by turning in the direction in which the angle formed by the axis of the connection port of the member decreases. A second engagement recess of the stage and the second engaging portion is obtained by a structure which elastically engaged.

この構成によると、第1係合手段の第1係合凹部と第1係合凸部との係合部を支点として両管部材を接続口の軸線のなす角度が小さくなる方向へ回動させる。これにより、両管部材の接続口が接続されるとともに第2係合手段の第2係合凹部と第2係合凸部とが弾性的に係合される結果、燃料ポンプに燃料フィルタを接続することができる。
また、第2係合手段の第2係合凹部と第2係合凸部との係合を弾性変形を利用して解除し、第1係合手段の第1係合凹部と第1係合凸部との係合部を支点として両管部材を接続口の軸線のなす角度が大きくなる方向へ回動させる。その後、第1係合手段の第1係合凹部と第1係合凸部との係合を解除することにより、燃料ポンプから燃料フィルタを取り外すことができる。
したがって、燃料フィルタの交換に際し、両管部材を接続口の軸線のなす角度が小さくなる方向又は大きくなる方向へ回動させるものであるから、燃料フィルタを直線方向へ移動させる場合(特許文献1参照)に比べて、燃料フィルタの移動スペースが狭くて済む。このため、燃料フィルタの交換に要するスペースを狭小化し、交換作業を簡素化することができる。
According to this configuration, the both pipe members are rotated in a direction in which the angle formed by the axis of the connection port is reduced with the engaging portion between the first engaging concave portion and the first engaging convex portion of the first engaging means as a fulcrum. . As a result, the connection ports of both pipe members are connected and the second engagement concave portion and the second engagement convex portion of the second engagement means are elastically engaged with each other, so that the fuel filter is connected to the fuel pump. can do.
Further, the engagement between the second engagement concave portion and the second engagement convex portion of the second engagement means is released using elastic deformation, and the first engagement concave portion and the first engagement of the first engagement means are released. Both pipe members are rotated in a direction in which the angle formed by the axis of the connection port becomes larger with the engaging portion with the convex portion as a fulcrum. Thereafter, the fuel filter can be removed from the fuel pump by releasing the engagement between the first engagement concave portion and the first engagement convex portion of the first engagement means.
Therefore, when the fuel filter is replaced, both the pipe members are rotated in a direction in which the angle formed by the axis of the connection port becomes smaller or larger, so that the fuel filter is moved in a linear direction (see Patent Document 1). ), The fuel filter can be moved in a smaller space. For this reason, the space required for replacement of the fuel filter can be reduced, and the replacement work can be simplified.

第2の発明は、第1の発明において、第1係合手段と第2係合手段との間に両管部材の接続口が配置されている。この構成によると、燃料ポンプに燃料フィルタを接続するに際し、第2係合手段の位置を特定しやすい。このため、第2係合手段の第2係合凹部と第2係合凸部とをスムーズに係合させることができる。   According to a second invention, in the first invention, the connection ports of both pipe members are arranged between the first engagement means and the second engagement means. According to this structure, when connecting a fuel filter to a fuel pump, it is easy to specify the position of a 2nd engagement means. For this reason, the 2nd engagement recessed part and 2nd engagement convex part of a 2nd engagement means can be engaged smoothly.

第3の発明は、第1又は第2の発明において、第1係合手段の第1係合凹部と第1係合凸部とは、相互の係合により両管部材の回動方向以外の方向への相対移動を規制するように構成されている。この構成によると、第1係合手段の第1係合凹部と第1係合凸部との係合により、両管部材が回動方向に案内される。このため、第2係合手段の第2係合凹部と第2係合凸部とを容易に係合させることができる。   According to a third invention, in the first or second invention, the first engagement concave portion and the first engagement convex portion of the first engagement means are arranged in a direction other than the rotation direction of both pipe members by mutual engagement. It is configured to restrict relative movement in the direction. According to this structure, both the pipe members are guided in the rotation direction by the engagement between the first engagement concave portion and the first engagement convex portion of the first engagement means. For this reason, the 2nd engagement recessed part and 2nd engagement convex part of a 2nd engagement means can be engaged easily.

第4の発明は、第1〜第3のいずれかの発明において、第2係合手段は、1組をなす第2係合凹部と第2係合凸部とにより構成されている。この構成によると、第2係合手段の1組をなす第2係合凹部と第2係合凸部との弾性的な係合をもって、燃料ポンプに対する燃料フィルタの接続を容易に完了することができる。   In a fourth aspect based on any one of the first to third aspects, the second engagement means is composed of a second engagement concave portion and a second engagement convex portion that form a pair. According to this configuration, the connection of the fuel filter to the fuel pump can be easily completed by the elastic engagement between the second engagement concave portion and the second engagement convex portion forming one set of the second engagement means. it can.

実施形態1にかかる燃料供給装置を示す斜視図である。1 is a perspective view showing a fuel supply device according to Embodiment 1. FIG. 燃料供給装置の断面図である。It is sectional drawing of a fuel supply apparatus. 燃料供給装置の構成部品を示す分解斜視図である。It is a disassembled perspective view which shows the component of a fuel supply apparatus. 燃料フィルタの取付構造を示す断面図である。It is sectional drawing which shows the attachment structure of a fuel filter. ポンプ側管部材を示す正面図である。It is a front view which shows a pump side pipe member. 図5のVI−VI線矢視断面図である。FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. フィルタ側管部材を示す正面図である。It is a front view which shows a filter side pipe member. 図7のVIII−VIII線矢視断面図である。FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7. 実施形態2にかかる燃料フィルタの取付構造を示す断面図である。It is sectional drawing which shows the attachment structure of the fuel filter concerning Embodiment 2. 実施形態3にかかる燃料フィルタの取付構造を示す断面図である。It is sectional drawing which shows the attachment structure of the fuel filter concerning Embodiment 3. 第1管部材及び第2管部材を示す分解斜視図である。It is a disassembled perspective view which shows a 1st pipe member and a 2nd pipe member.

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。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[実施形態1]
実施形態1を説明する。本実施形態の燃料フィルタの取付構造に係る燃料ポンプ及び燃料フィルタは、燃料供給装置にモジュール化されている。このため、燃料供給装置の基本的構成から説明する。図1は燃料供給装置を示す斜視図、図2は同じく断面図、図3は燃料供給装置の構成部品を示す分解斜視図である。なお、本実施形態の燃料供給装置の基本的構成は、同一出願人が先に出願した特開2008−82263号公報に記載された燃料供給装置のものとほとんど同様であるから、概略を説明するにとどめる。また、燃料供給装置は、例えば自動二輪車の燃料タンクの底部に装着されるいわゆる底付けタイプ(下付けタイプ)のもので、燃料タンク内の燃料を図示しない内燃機関(エンジン)に供給するために用いられる。
[Embodiment 1]
Embodiment 1 will be described. The fuel pump and the fuel filter according to the fuel filter mounting structure of the present embodiment are modularized in the fuel supply device. For this reason, it demonstrates from the fundamental structure of a fuel supply apparatus. FIG. 1 is a perspective view showing a fuel supply device, FIG. 2 is a sectional view of the same, and FIG. 3 is an exploded perspective view showing components of the fuel supply device. Note that the basic configuration of the fuel supply apparatus of the present embodiment is almost the same as that of the fuel supply apparatus described in Japanese Patent Application Laid-Open No. 2008-82263 filed earlier by the same applicant, so the outline will be described. Stay on. Further, the fuel supply device is of a so-called bottoming type (bottom attachment type) that is attached to the bottom of a fuel tank of a motorcycle, for example, for supplying the fuel in the fuel tank to an internal combustion engine (engine) (not shown). Used.

図1に示すように燃料供給装置10は、蓋部材としてのセットプレート12を備えている。セットプレート12は、有底円筒状のカップ部13、カップ部13の外周面の上端部寄りから半径方向外方へ張り出す円環状のフランジ部14、及び、C形筒状のポンプ嵌合部15を有する(図2及び図3参照)。セットプレート12には、燃料吐出ポート16及び電気コネクタ17が設けられている。セットプレート12は、燃料タンク19の底部に形成された丸孔状の開口部19aにその下方からカップ部13の上端部及びポンプ嵌合部15を嵌合するようにして装着される(図2参照)。なお、燃料タンク19とフランジ部14との間には、円環状のシール部材20が介装される。また、図示を省略するが、セットプレート12の下面側において、燃料吐出ポート16には、内燃機関(エンジン)につながる燃料供給管が接続される。また、電気コネクタ17には、外部電源、電子制御装置(ECU)等につながる外部コネクタが接続される。   As shown in FIG. 1, the fuel supply apparatus 10 includes a set plate 12 as a lid member. The set plate 12 includes a bottomed cylindrical cup portion 13, an annular flange portion 14 projecting radially outward from the upper end of the outer peripheral surface of the cup portion 13, and a C-shaped cylindrical pump fitting portion 15 (see FIGS. 2 and 3). The set plate 12 is provided with a fuel discharge port 16 and an electrical connector 17. The set plate 12 is mounted so that the upper end portion of the cup portion 13 and the pump fitting portion 15 are fitted into a round hole-shaped opening portion 19a formed in the bottom portion of the fuel tank 19 from below (FIG. 2). reference). An annular seal member 20 is interposed between the fuel tank 19 and the flange portion 14. Although not shown, a fuel supply pipe connected to the internal combustion engine (engine) is connected to the fuel discharge port 16 on the lower surface side of the set plate 12. The electrical connector 17 is connected to an external connector connected to an external power source, an electronic control unit (ECU) and the like.

図2に示すように、前記ポンプ嵌合部15にはケーシング22が装着されている。ポンプ嵌合部15とケーシング22とにより形成される中空円筒状の内部空間に燃料ポンプ24が縦置き状に収容されている。燃料ポンプ24は、周知のウエスコ型の電動式燃料ポンプである。燃料ポンプ24の下端側に燃料吸入口25が位置され、燃料ポンプ24の上端側に燃料吐出口26及び端子27(図3参照)が位置されている。燃料吸入口25には、吸入フィルタとしての燃料フィルタ30が接続されている。   As shown in FIG. 2, a casing 22 is attached to the pump fitting portion 15. A fuel pump 24 is accommodated vertically in a hollow cylindrical internal space formed by the pump fitting portion 15 and the casing 22. The fuel pump 24 is a well-known Wesco-type electric fuel pump. A fuel suction port 25 is positioned on the lower end side of the fuel pump 24, and a fuel discharge port 26 and a terminal 27 (see FIG. 3) are positioned on the upper end side of the fuel pump 24. A fuel filter 30 as an intake filter is connected to the fuel intake port 25.

前記燃料フィルタ30は、袋状の濾過部材32を有する。濾過部材32は、例えば、可撓性を有する不織布、メッシュ材、濾紙、編布等からなる。また、濾過部材32の外形は、縦長平板状に形成されている。濾過部材32内には、濾過部材32を膨大状態に保持するための樹脂製の保持フレーム(図示省略)が内装されている。また、燃料フィルタ30は、濾過部材32の扁平方向すなわち平板状外形の厚さ方向(図2において左右方向)を前記セットプレート12の半径方向に向けた状態で、前記ポンプ嵌合部15の割溝側に並立状に配置されている。また、燃料ポンプ24と燃料フィルタ30との接続部分及び濾過部材32の下端部は、前記セットプレート12のカップ部13内に収容されている。なお、燃料ポンプ24に対する燃料フィルタ30の取付構造については後で説明する。   The fuel filter 30 has a bag-shaped filter member 32. The filtering member 32 is made of, for example, a flexible nonwoven fabric, mesh material, filter paper, knitted fabric, or the like. Further, the outer shape of the filtering member 32 is formed in a vertically long flat plate shape. A resin-made holding frame (not shown) for holding the filtering member 32 in an enormous state is housed inside the filtering member 32. In addition, the fuel filter 30 is divided by the pump fitting portion 15 in a state in which the flat direction of the filter member 32, that is, the thickness direction of the flat outer shape (the left-right direction in FIG. It is arranged side by side on the groove side. Further, the connecting portion between the fuel pump 24 and the fuel filter 30 and the lower end portion of the filter member 32 are accommodated in the cup portion 13 of the set plate 12. A structure for attaching the fuel filter 30 to the fuel pump 24 will be described later.

前記燃料ポンプ24の燃料吐出口26には、前記ケーシング22に形成された燃料通路形成部34が接続されている。また、図1に示すように、前記燃料ポンプ24の端子27は、電気配線35を介して前記セットプレート12の電気コネクタ17(詳しくは端子)に接続されている。また、ケーシング22の燃料通路形成部34には、プレッシャレギュレータ37が接続されている。プレッシャレギュレータ37は、燃料ポンプ24から吐出される燃料の圧力を調整し、それによって生じた余剰燃料を燃料タンク19内に吐出する。また、ケーシング22の燃料通路形成部34と前記燃料吐出ポート16とは連通管39を介して接続されている。   A fuel passage forming portion 34 formed in the casing 22 is connected to the fuel discharge port 26 of the fuel pump 24. As shown in FIG. 1, the terminal 27 of the fuel pump 24 is connected to the electrical connector 17 (specifically, a terminal) of the set plate 12 via an electrical wiring 35. A pressure regulator 37 is connected to the fuel passage forming portion 34 of the casing 22. The pressure regulator 37 adjusts the pressure of the fuel discharged from the fuel pump 24 and discharges surplus fuel generated thereby into the fuel tank 19. The fuel passage forming portion 34 of the casing 22 and the fuel discharge port 16 are connected via a communication pipe 39.

前記ケーシング22の上端部の側面には、センダゲージ41の本体部42が装着されている。本体部42には、フロート44を有するアーム43が回動可能に設けられている。本体部42の電気コネクタ部45(詳しくは端子)は、電気配線46を介して前記電気コネクタ17(詳しくは端子)に接続されている。センダゲージ41は、前記燃料タンク19(図2参照)内の燃料残量を検出するセンサである。   A main body 42 of a sender gauge 41 is attached to the side surface of the upper end portion of the casing 22. The main body 42 is provided with an arm 43 having a float 44 so as to be rotatable. An electrical connector 45 (specifically, a terminal) of the main body 42 is connected to the electrical connector 17 (specifically, a terminal) via an electrical wiring 46. The sender gauge 41 is a sensor that detects the remaining amount of fuel in the fuel tank 19 (see FIG. 2).

前記した燃料供給装置10において、燃料ポンプ24が駆動されると、燃料タンク19内の燃料が燃料フィルタ30の濾過部材32を介して燃料ポンプ24内に吸入される。その燃料は、燃料ポンプ24で昇圧され、ケーシング22の燃料通路形成部34、連通管39及び燃料吐出ポート16を介して、内燃機関につながる燃料供給管に供給される。また、プレッシャレギュレータ37は、燃料通路形成部34内の燃料圧力を所定の圧力に調圧する。なお、図3において電気配線35,46は省略されている。   In the fuel supply device 10 described above, when the fuel pump 24 is driven, the fuel in the fuel tank 19 is sucked into the fuel pump 24 through the filter member 32 of the fuel filter 30. The fuel is pressurized by the fuel pump 24 and supplied to the fuel supply pipe connected to the internal combustion engine via the fuel passage forming portion 34 of the casing 22, the communication pipe 39 and the fuel discharge port 16. Further, the pressure regulator 37 adjusts the fuel pressure in the fuel passage forming portion 34 to a predetermined pressure. In FIG. 3, the electrical wirings 35 and 46 are omitted.

次に、燃料ポンプ24に対する燃料フィルタ30の取付構造について説明する。図4は燃料フィルタの取付構造を示す断面図である。図4に示すように、燃料ポンプ24側には、ポンプ側管部材50が設けられている。ポンプ側管部材50については、燃料フィルタ30の接続側(図4において左側)を前面側(正面側)として説明する。図5はポンプ側管部材を示す正面図、図6は図5のVI−VI線矢視断面図である。図5及び図6に示すように、前記ポンプ側管部材50は、例えば樹脂製で、曲り管状に形成された管状部51を有する。管状部51の前端部(図6において左端部)には、前面を開口する受け口としての円筒状の入口部52が形成されている。入口部52の前端部の外周面には、四角形板状の接続板部53が形成されている。接続板部53の前面側の下縁部には、左右方向に延びる支承部54が形成されている。   Next, the attachment structure of the fuel filter 30 to the fuel pump 24 will be described. FIG. 4 is a cross-sectional view showing a fuel filter mounting structure. As shown in FIG. 4, a pump side pipe member 50 is provided on the fuel pump 24 side. The pump side pipe member 50 will be described with the connection side (left side in FIG. 4) of the fuel filter 30 as the front side (front side). 5 is a front view showing the pump side pipe member, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. As shown in FIGS. 5 and 6, the pump side pipe member 50 includes a tubular portion 51 made of, for example, a resin and formed in a curved tubular shape. At the front end portion (left end portion in FIG. 6) of the tubular portion 51, a cylindrical inlet portion 52 is formed as a receiving opening that opens the front surface. A rectangular plate-like connecting plate portion 53 is formed on the outer peripheral surface of the front end portion of the inlet portion 52. A support portion 54 extending in the left-right direction is formed on the lower edge portion of the front surface side of the connection plate portion 53.

前記接続板部53の下端部の中央部には、左右方向に延びる長細状の第1係合孔55が形成されている。第1係合孔55は、接続板部53と前記支承部54とに跨るように形成されている。また、接続板部53の上端部の中央部には、左右方向に延びる長細状の第2係合孔56が形成されている。第2係合孔56は、第1係合孔55の左右方向の横幅よりも大きい横幅で形成されている。また、管状部51の後端部には、上面を開口する受け口としての円筒状の出口部57が形成されている。また、ポンプ側管部材50は、前記燃料ポンプ24の燃料吸入口25を差し口として出口部57を嵌合(例えば圧入)することにより燃料ポンプ24に接続されている(図4参照)。なお、ポンプ側管部材50の入口部52が本明細書でいう「接続口」に相当する。   An elongated first engagement hole 55 extending in the left-right direction is formed at the center of the lower end of the connection plate 53. The first engagement hole 55 is formed so as to straddle the connection plate portion 53 and the support portion 54. In addition, an elongated second engagement hole 56 extending in the left-right direction is formed at the center of the upper end portion of the connection plate portion 53. The second engagement hole 56 is formed with a lateral width that is greater than the lateral width of the first engagement hole 55 in the left-right direction. In addition, a cylindrical outlet portion 57 is formed at the rear end portion of the tubular portion 51 as a receiving port having an upper surface opened. The pump side pipe member 50 is connected to the fuel pump 24 by fitting (for example, press-fitting) the outlet 57 with the fuel inlet 25 of the fuel pump 24 as an outlet (see FIG. 4). The inlet 52 of the pump side pipe member 50 corresponds to the “connection port” in this specification.

図4に示すように、燃料フィルタ30側には、フィルタ側管部材60が設けられている。フィルタ側管部材60については、ポンプ側管部材50の接続側(図4において右側)を前面側(正面側)として説明する。図7はフィルタ側管部材60を示す正面図、図8は図7のVIII−VIII線矢視断面図である。図7及び図8に示すように、フィルタ側管部材60は、例えば樹脂製で、前後方向に貫通する円管状に形成された管状部61を有する。管状部61の前端部(図8において右端部)には、差し口としての出口部62が形成されている。管状部61の後端部の外周面には、四角形板状の接続板部63が形成されている。   As shown in FIG. 4, a filter side pipe member 60 is provided on the fuel filter 30 side. The filter side pipe member 60 will be described with the connection side (right side in FIG. 4) of the pump side pipe member 50 as the front side (front side). 7 is a front view showing the filter side pipe member 60, and FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. As shown in FIGS. 7 and 8, the filter-side tube member 60 has a tubular portion 61 made of, for example, resin and formed in a circular tube shape penetrating in the front-rear direction. At the front end portion (right end portion in FIG. 8) of the tubular portion 61, an outlet portion 62 is formed as an insertion port. A rectangular plate-like connection plate portion 63 is formed on the outer peripheral surface of the rear end portion of the tubular portion 61.

前記接続板部63の下縁部の中央部には、下方に突出する舌片状の第1係合片65が形成されている。第1係合片65は、左右方向に幅広状に形成されている。また、接続板部63の上端部の中央部には、逆L字状の第2係合片66が形成されている。第2係合片66は、第1係合片65よりも幅広状に形成されている。また、第2係合片66は、接続板部63の上端部から上方へ延びる縦片部66aと、縦片部66aの上端から前方へ延びる横片部66bと、横片部66bの前端部の上側に突出された上向きの係合爪66cとを有する。横片部66bは、係合爪66cを下方へ移動する方向へ弾性変形いわゆる撓み変形可能に形成されている(図8中、二点鎖線66b参照)。また、フィルタ側管部材60は、接続板部63を前記燃料フィルタ30の濾過部材32及び内蔵のフレームに溶着、接着等の接合手段による接合により燃料フィルタ30に接続されている(図4参照)。これにともない、濾過部材32の内部空間と管状部61内とが連通されている。なお、フィルタ側管部材60の出口部62が本明細書でいう「接続口」に相当する。   A tongue-shaped first engagement piece 65 protruding downward is formed at the center of the lower edge of the connection plate 63. The first engagement piece 65 is formed wide in the left-right direction. Further, an inverted L-shaped second engagement piece 66 is formed at the center of the upper end of the connection plate 63. The second engagement piece 66 is formed wider than the first engagement piece 65. The second engagement piece 66 includes a vertical piece 66a extending upward from the upper end of the connection plate 63, a horizontal piece 66b extending forward from the upper end of the vertical piece 66a, and a front end of the horizontal piece 66b. And an upward engaging claw 66c protruding upward. The horizontal piece 66b is formed so as to be elastically deformed, so-called flexibly deformed in a direction in which the engaging claw 66c moves downward (see a two-dot chain line 66b in FIG. 8). Further, the filter side pipe member 60 is connected to the fuel filter 30 by joining the connecting plate portion 63 to the filtering member 32 of the fuel filter 30 and the built-in frame by joining means such as adhesion or adhesion (see FIG. 4). . Accordingly, the internal space of the filtration member 32 and the inside of the tubular portion 61 are communicated. The outlet 62 of the filter side pipe member 60 corresponds to a “connection port” in this specification.

前記した燃料ポンプ24に燃料フィルタ30を着脱可能に接続する手順について説明する。予め、フィルタ側管部材60の出口部62の外側にシール部材としてのOリング70を装着しておく(図4中、実線70参照)。また、本実施形態では、ポンプ側管部材50を備えた燃料ポンプ24が前記燃料供給装置10のセットプレート12に配置されているものとして説明する。また、燃料供給装置10は、燃料タンク19に装着する前の状態(又は、燃料タンク19から取り外されている状態)とする。   A procedure for detachably connecting the fuel filter 30 to the fuel pump 24 will be described. In advance, an O-ring 70 as a seal member is attached to the outside of the outlet 62 of the filter-side tube member 60 (see the solid line 70 in FIG. 4). In the present embodiment, the fuel pump 24 including the pump side pipe member 50 is described as being disposed on the set plate 12 of the fuel supply device 10. The fuel supply device 10 is in a state before being attached to the fuel tank 19 (or in a state where it is detached from the fuel tank 19).

図4に示すように、ポンプ側管部材50の第1係合孔55にフィルタ側管部材60の第1係合片65を係合し、ポンプ側管部材50の支承部54上にフィルタ側管部材60の接続板部63を支承する(図4中、実線63,65参照)。これにより、ポンプ側管部材50の入口部52の軸線52Lとフィルタ側管部材60の出口部62の軸線62Lとのなす角度θが可変となるように係合される。また、第1係合片65は、第1係合孔55に対して左右方向(図4において紙面表裏方向)にほとんど隙間無く嵌合される。   As shown in FIG. 4, the first engagement piece 65 of the filter side tube member 60 is engaged with the first engagement hole 55 of the pump side tube member 50, and the filter side on the support portion 54 of the pump side tube member 50 is engaged. The connecting plate 63 of the pipe member 60 is supported (see solid lines 63 and 65 in FIG. 4). Thus, the engagement is made such that the angle θ formed by the axis 52L of the inlet 52 of the pump side pipe member 50 and the axis 62L of the outlet 62 of the filter side pipe member 60 is variable. Further, the first engagement piece 65 is fitted into the first engagement hole 55 in the left-right direction (the front and back direction in FIG. 4) with almost no gap.

この状態から、第1係合孔55と第1係合片65との係合部を支点としてフィルタ側管部材60を角度θが小さくなる方向(図4中、矢印方向参照)へ回動させる。これにより、ポンプ側管部材50の入口部52にフィルタ側管部材60の出口部62が接続される(図4中、二点鎖線62参照)。これとともに、第2係合孔56と第2係合片66とが弾性的に係合される(図4中、二点鎖線66参照)。詳しくは、ポンプ側管部材50の第2係合孔56の孔縁部にフィルタ側管部材60の第2係合片66の係合爪66cが横片部66bの撓み変形(図8中、二点鎖線66b参照)を利用して弾性的に係合される。すなわち、第2係合孔56と第2係合片66とがスナップフィットにより係合される。このようにして、ポンプ側管部材50の接続板部53とフィルタ側管部材60の接続板部63とが結合される結果、燃料ポンプ24に燃料フィルタ30を接続することができる(図4中、二点鎖線60,63参照)。また、第2係合片66は、第2係合孔56に対して左右方向(図4において紙面表裏方向)にほとんど隙間無く嵌合される。なお、ポンプ側管部材50の入口部52とフィルタ側管部材60の出口部62との間がOリング70によってシールされる(図4中、二点鎖線70参照)。また、燃料ポンプ24に燃料フィルタ30を接続した状態における角度θは0°である。なお、角度θは0°以外に設定してもよい。   From this state, the filter-side tube member 60 is rotated in a direction in which the angle θ decreases (see the arrow direction in FIG. 4), with the engaging portion between the first engaging hole 55 and the first engaging piece 65 as a fulcrum. . Thereby, the outlet part 62 of the filter side pipe member 60 is connected to the inlet part 52 of the pump side pipe member 50 (refer to the two-dot chain line 62 in FIG. 4). At the same time, the second engagement hole 56 and the second engagement piece 66 are elastically engaged (see a two-dot chain line 66 in FIG. 4). Specifically, the engagement claw 66c of the second engagement piece 66 of the filter side tube member 60 is bent and deformed in the lateral piece portion 66b at the hole edge portion of the second engagement hole 56 of the pump side tube member 50 (in FIG. 8, It is elastically engaged using the two-dot chain line 66b). That is, the second engagement hole 56 and the second engagement piece 66 are engaged by snap fit. In this way, as a result of the connection plate portion 53 of the pump side pipe member 50 and the connection plate portion 63 of the filter side pipe member 60 being coupled, the fuel filter 30 can be connected to the fuel pump 24 (in FIG. 4). , See alternate long and two short dashes lines 60 and 63). Further, the second engagement piece 66 is fitted into the second engagement hole 56 in the left-right direction (the front and back direction in FIG. 4) with almost no gap. A gap between the inlet portion 52 of the pump side pipe member 50 and the outlet portion 62 of the filter side pipe member 60 is sealed by an O-ring 70 (see a two-dot chain line 70 in FIG. 4). Further, the angle θ in the state where the fuel filter 30 is connected to the fuel pump 24 is 0 °. The angle θ may be set to other than 0 °.

続いて、燃料ポンプ24に接続した燃料フィルタ30(図4中、二点鎖線30参照)を取り外す手順について説明する。まず、第2係合孔56と第2係合片66との係合を、第2係合片66の弾性を利用して解除する。すなわち、第2係合片66の係合爪66cを下方へ押圧することにより横片部66bを撓み変形(図8中、二点鎖線66b参照)させることにより、第2係合孔56(詳しくは孔縁部)と第2係合片66(詳しくは係合爪66c)との係合を解除する。そして、第1係合孔55と第1係合片65との係合部を支点としてフィルタ側管部材60を角度θが大きくなる方向(図4中、矢印方向と反対方向参照)へ回動させる。なお、第2係合片66の係合爪66cが第2係合孔56内に入り込めば、第2係合片66の横片部66bを撓み変形させている押圧力を解放してもよい。その後、第1係合孔55から第1係合片65を抜き外して相互の係合を解除することにより、ポンプ側管部材50とフィルタ側管部材60とを分離させる。このようにして、燃料ポンプ24から燃料フィルタ30を取り外すことができる。   Next, a procedure for removing the fuel filter 30 (see the two-dot chain line 30 in FIG. 4) connected to the fuel pump 24 will be described. First, the engagement between the second engagement hole 56 and the second engagement piece 66 is released using the elasticity of the second engagement piece 66. That is, the second engaging hole 56 (detailed) is shown by bending and deforming the lateral piece 66b by pressing the engaging claw 66c of the second engaging piece 66 downward (see the two-dot chain line 66b in FIG. 8). Is disengaged between the hole edge) and the second engagement piece 66 (specifically, the engagement claw 66c). Then, the filter side tube member 60 is rotated in the direction in which the angle θ is increased (refer to the direction opposite to the arrow direction in FIG. 4) with the engaging portion of the first engaging hole 55 and the first engaging piece 65 as a fulcrum. Let If the engaging claw 66c of the second engaging piece 66 enters the second engaging hole 56, the pressing force that is bending and deforming the lateral piece 66b of the second engaging piece 66 is released. Good. Thereafter, the pump-side tube member 50 and the filter-side tube member 60 are separated by removing the first engagement piece 65 from the first engagement hole 55 and releasing the mutual engagement. In this way, the fuel filter 30 can be removed from the fuel pump 24.

なお、第1係合孔55と第1係合片65とは第1係合手段(符号、K1を付す)を構成している。また、第1係合孔55は本明細書でいう「第1係合凹部」に相当する。また、第1係合片65は本明細書でいう「第1係合凸部」に相当する。また、第2係合孔56と第2係合片66とは第2係合手段(符号、K2を付す)を構成している。また、第2係合孔56は本明細書でいう「第2係合凹部」に相当する。また、第2係合片66は本明細書でいう「第2係合凸部」に相当する。   The first engagement hole 55 and the first engagement piece 65 constitute first engagement means (denoted by reference numeral K1). The first engagement hole 55 corresponds to a “first engagement recess” in this specification. The first engagement piece 65 corresponds to a “first engagement convex portion” in the present specification. The second engagement hole 56 and the second engagement piece 66 constitute second engagement means (denoted by reference numeral K2). The second engagement hole 56 corresponds to a “second engagement recess” in this specification. Further, the second engagement piece 66 corresponds to a “second engagement convex portion” in this specification.

前記した燃料フィルタ30の取付構造によると、燃料フィルタ30の交換に際し、両管部材50,60を角度θが小さくなる方向又は大きくなる方向へ回動させるものであるから、燃料フィルタ30を直線方向へ移動させる場合(特許文献1参照)に比べて、燃料フィルタ30の移動スペースが狭くて済む。このため、燃料フィルタ30の交換に要するスペースを狭小化し、交換作業を簡素化することができる。   According to the mounting structure of the fuel filter 30 described above, when the fuel filter 30 is replaced, both the pipe members 50 and 60 are rotated in a direction in which the angle θ is decreased or increased, so that the fuel filter 30 is linearly moved. Compared with the case of moving to (see Patent Document 1), the movement space of the fuel filter 30 may be narrower. For this reason, the space required for the replacement of the fuel filter 30 can be reduced, and the replacement work can be simplified.

ところで、本実施形態における燃料ポンプ24と燃料フィルタ30との接続部分及び濾過部材32の下端部は、セットプレート12のカップ部13内に収容されている(図2参照)。したがって、燃料フィルタ30の交換に要するスペースが狭くても、セットプレート12に設置されたままの燃料ポンプ24に対して燃料フィルタ30を容易に交換することができる。   By the way, the connection part of the fuel pump 24 and the fuel filter 30 in this embodiment and the lower end part of the filter member 32 are accommodated in the cup part 13 of the set plate 12 (refer FIG. 2). Therefore, even if the space required for replacement of the fuel filter 30 is small, the fuel filter 30 can be easily replaced with respect to the fuel pump 24 that is still installed on the set plate 12.

また、第1係合手段K1と第2係合手段K2との間に両管部材50,60の接続口(入口部52、出口部62)が配置されている。したがって、燃料ポンプ24に燃料フィルタ30を接続するに際し、第2係合手段K2の位置を特定しやすい。このため、第2係合手段K2の第2係合孔56と第2係合片66とをスムーズに係合させることができる。   Further, the connection ports (inlet portion 52 and outlet portion 62) of both the pipe members 50 and 60 are disposed between the first engaging means K1 and the second engaging means K2. Therefore, when connecting the fuel filter 30 to the fuel pump 24, it is easy to specify the position of the second engagement means K2. For this reason, the 2nd engagement hole 56 of the 2nd engagement means K2 and the 2nd engagement piece 66 can be engaged smoothly.

また、第1係合手段K1の第1係合孔55と第1係合片65とは、相互の係合により両管部材50,60の回動方向以外の方向への相対移動を規制するように構成されている。すなわち、第1係合孔55が左右方向に延びる長細状に形成されているとともに、第1係合片65が左右方向に幅広状に形成されている。したがって、第1係合手段K1の第1係合孔55と第1係合片65との係合により、両管部材50,60が回動方向に案内される。このため、第2係合手段K2の第2係合孔56と第2係合片66とを容易に係合させることができる。   Further, the first engagement hole 55 and the first engagement piece 65 of the first engagement means K1 restrict relative movement of the tube members 50 and 60 in directions other than the rotation direction by mutual engagement. It is configured as follows. That is, the first engagement hole 55 is formed in an elongated shape extending in the left-right direction, and the first engagement piece 65 is formed wide in the left-right direction. Accordingly, the pipe members 50 and 60 are guided in the rotation direction by the engagement of the first engagement hole 55 and the first engagement piece 65 of the first engagement means K1. For this reason, the 2nd engagement hole 56 and the 2nd engagement piece 66 of the 2nd engagement means K2 can be easily engaged.

また、第2係合手段K2は、1組をなす第2係合孔56と第2係合片66とにより構成されている。したがって、第2係合手段K2の1組をなす第2係合孔56と第2係合片66との弾性的な係合をもって、燃料ポンプ24に対する燃料フィルタ30の接続を容易に完了することができる。   The second engagement means K2 is composed of a second engagement hole 56 and a second engagement piece 66 that form a pair. Therefore, the connection of the fuel filter 30 to the fuel pump 24 can be easily completed by the elastic engagement between the second engagement hole 56 and the second engagement piece 66 forming one set of the second engagement means K2. Can do.

[実施形態2]
実施形態2を説明する。本実施形態は、前記実施形態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9は燃料フィルタの取付構造を示す断面図である。図9に示すように、本実施形態は、実施形態1におけるフィルタ側管部材60の第2係合片66の係合爪66c(図8参照)が、横片部66bの前端部の下側に突出された下向きの係合爪(符号、66dを付す)に変更されている。
[Embodiment 2]
A second embodiment will be described. Since the present embodiment is a modification of the first embodiment, the changed portion will be described and redundant description will be omitted. FIG. 9 is a cross-sectional view showing a fuel filter mounting structure. As shown in FIG. 9, in the present embodiment, the engagement claw 66c (see FIG. 8) of the second engagement piece 66 of the filter side tube member 60 in the first embodiment is below the front end portion of the horizontal piece portion 66b. It is changed to the downward engaging claw (reference numeral 66d).

[実施形態3]
実施形態3を説明する。本実施形態は、前記実施形態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10は燃料フィルタの取付構造を示す断面図、図11は第1管部材及び第2管部材を示す分解斜視図である。図10及び図11に示すように、本実施形態は、実施形態1におけるポンプ側管部材50の第1係合孔55(図6参照)が、前方を開口する断面C字状の第1係合受片(符号、58を付す)に変更されている。第1係合受片58は、開口部を拡開する移動する方向へ弾性変形いわゆる撓み変形可能に形成されている(図10中、二点鎖線58参照)。なお、実施形態1におけるポンプ側管部材50の支承部54(図6参照)は省略されている。
[Embodiment 3]
A third embodiment will be described. Since the present embodiment is a modification of the first embodiment, the changed portion will be described and redundant description will be omitted. FIG. 10 is a sectional view showing a fuel filter mounting structure, and FIG. 11 is an exploded perspective view showing a first pipe member and a second pipe member. As shown in FIGS. 10 and 11, in this embodiment, the first engagement hole 55 (see FIG. 6) of the pump side pipe member 50 in the first embodiment has a C-shaped cross section with a front opening. It is changed to an acceptance piece (reference numeral 58). The first engagement receiving piece 58 is formed so as to be elastically deformed, that is, so-called flexibly deformed in a moving direction in which the opening is expanded (see a two-dot chain line 58 in FIG. 10). In addition, the support part 54 (refer FIG. 6) of the pump side pipe member 50 in Embodiment 1 is abbreviate | omitted.

また、実施形態1におけるフィルタ側管部材60の第1係合片65(図8参照)が、丸軸状の第1係合突起(符号、68を付す)に変更されている。第1係合突起68は、第1係合受片58にその係合受片58の撓み変形を利用して係脱可能になっている。なお、第1係合受片58は本明細書でいう「第1係合凹部」に相当する。また、第1係合突起68は本明細書でいう「第1係合凸部」に相当する。   Further, the first engagement piece 65 (see FIG. 8) of the filter side tube member 60 in the first embodiment is changed to a first engagement protrusion (reference numeral 68) having a round shaft shape. The first engagement protrusion 68 can be engaged with and disengaged from the first engagement receiving piece 58 by utilizing the bending deformation of the engagement receiving piece 58. The first engagement receiving piece 58 corresponds to a “first engagement recess” in the present specification. Further, the first engagement protrusion 68 corresponds to a “first engagement protrusion” in this specification.

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、本発明の燃料フィルタの取付構造は、燃料タンク19の底部に装着される底付けタイプの燃料供給装置10の燃料ポンプ24に限らず、燃料タンク19の上部に装着される上付けタイプの燃料供給装置の燃料ポンプ、あるいは、燃料供給装置としてモジュール化されない燃料ポンプ等にも適用することができる。また、前記実施形態では、ポンプ側管部材50の入口部52を差し口とし、フィルタ側管部材60の出口部62を受け口としたが、入口部52を受け口とし、出口部62を差し口としてもよい。また、前記実施形態では、燃料供給装置10における燃料フィルタ30の交換を考慮して、第1係合手段K1を下側に配置し、第2係合手段K2を上側に配置したが、両係合手段K1,K2の位置はこれに限定するものではない。また、前記実施形態では、第1係合手段K1と第2係合手段K2との間に両管部材50,60の接続口(入口部52、出口部62)を配置したが、これに限定するものではない。   The present invention is not limited to the above-described embodiment, and modifications can be made without departing from the gist of the present invention. For example, the fuel filter mounting structure of the present invention is not limited to the fuel pump 24 of the bottom-mounted fuel supply device 10 mounted on the bottom of the fuel tank 19, but is an upper-type mounted on the top of the fuel tank 19. The present invention can also be applied to a fuel pump of a fuel supply device or a fuel pump that is not modularized as a fuel supply device. Moreover, in the said embodiment, although the inlet part 52 of the pump side pipe member 50 was used as the outlet and the outlet part 62 of the filter side pipe member 60 was used as the outlet, the inlet part 52 was used as the outlet and the outlet part 62 was used as the outlet. Also good. In the above embodiment, the first engagement means K1 is disposed on the lower side and the second engagement means K2 is disposed on the upper side in consideration of replacement of the fuel filter 30 in the fuel supply device 10. The positions of the combining means K1, K2 are not limited to this. Moreover, in the said embodiment, although the connection port (inlet part 52, outlet part 62) of both the pipe members 50 and 60 was arrange | positioned between the 1st engaging means K1 and the 2nd engaging means K2, it is limited to this. Not what you want.

また、前記実施形態では、第1係合手段K1の第1係合凹部と第1係合凸部とを、相互の係合により両管部材50,60の回動方向以外の方向への相対移動を規制するように構成したが、これに限定するものではない。また、前記実施形態では、第1係合手段K1を1組をなす第1係合凹部と第1係合凸部とにより構成したが、第1係合手段K1を複数組をなす第1係合凹部と第1係合凸部とにより構成してもよい。また、前記実施形態では、ポンプ側管部材50側に第1係合凹部を設け、フィルタ側管部材60側に第1係合凸部を設けたが、ポンプ側管部材50側に第1係合凸部を設け、フィルタ側管部材60側に第1係合凹部を設けてもよい。   In the above embodiment, the first engagement concave portion and the first engagement convex portion of the first engagement means K1 are relative to each other in a direction other than the rotation direction of the tube members 50 and 60 by mutual engagement. Although configured to restrict movement, the present invention is not limited to this. In the above-described embodiment, the first engagement means K1 is configured by the first engagement concave portion and the first engagement convex portion that form one set, but the first engagement means K1 is formed by a plurality of sets. You may comprise by a joint recessed part and a 1st engagement convex part. Moreover, in the said embodiment, although the 1st engagement recessed part was provided in the pump side pipe member 50 side and the 1st engagement convex part was provided in the filter side pipe member 60 side, the 1st engagement is provided in the pump side pipe member 50 side. A mating convex portion may be provided, and the first engaging concave portion may be provided on the filter side tube member 60 side.

また、前記実施形態では、第2係合手段K2を1組をなす第2係合凹部と第2係合凸部とで構成したが、第2係合手段K2を複数組をなす第2係合凹部と第2係合凸部とで構成してもよい。また、前記実施形態では、ポンプ側管部材50側に第2係合凹部を設け、フィルタ側管部材60側に第2係合凸部を設けたが、ポンプ側管部材50側に第2係合凸部を設け、フィルタ側管部材60側に第2係合凹部を設けてもよい。また、第2係合手段K2は、特許文献1に記載の挿入孔(第2係合凹部に相当する)と固定軸(第2係合凸部に相当する)とにより構成してもよい。また、前記実施形態では、第2係合凸部(第2係合片66)を弾性変形可能に形成したが、第2係合凹部(第2係合孔56の孔縁部)を弾性変形可能に形成してもよいし、第2係合凸部と第2係合凹部とを弾性変形可能に形成してもよい。また、前記実施形態では、第2係合孔56を第1係合孔55の左右方向の横幅よりも大きい横幅で形成したが、第1係合孔55を第2係合孔56の左右方向の横幅よりも大きい横幅で形成してもよい。   In the above embodiment, the second engagement means K2 is composed of a pair of second engagement recesses and second engagement protrusions. However, the second engagement means K2 includes a plurality of sets of second engagement means K2. You may comprise by a joint recessed part and a 2nd engagement convex part. Moreover, in the said embodiment, although the 2nd engagement recessed part was provided in the pump side pipe member 50 side and the 2nd engagement convex part was provided in the filter side pipe member 60 side, the 2nd engagement is provided in the pump side pipe member 50 side. A mating convex portion may be provided, and a second engaging concave portion may be provided on the filter side tube member 60 side. Further, the second engagement means K2 may be configured by an insertion hole (corresponding to a second engagement recess) described in Patent Document 1 and a fixed shaft (corresponding to a second engagement protrusion). In the embodiment, the second engagement convex portion (second engagement piece 66) is formed to be elastically deformable, but the second engagement concave portion (hole edge portion of the second engagement hole 56) is elastically deformed. The second engaging convex portion and the second engaging concave portion may be formed so as to be elastically deformable. In the above embodiment, the second engagement hole 56 is formed with a lateral width greater than the lateral width of the first engagement hole 55, but the first engagement hole 55 is formed in the lateral direction of the second engagement hole 56. It may be formed with a width larger than the width.

24…燃料ポンプ
30…燃料フィルタ
50…ポンプ側管部材
52…入口部(接続口)
55…第1係合孔(第1係合凹部)
56…第2係合孔(第2係合凹部)
58…第1係合受片(第1係合凹部)
60…フィルタ側管部材
62…出口部(接続口)
65…第1係合片(第1係合凸部)
66…第2係合片(第2係合凸部)
68…第1係合突起(第1係合凸部)
K1…第1係合手段
K2…第2係合手段
24 ... Fuel pump 30 ... Fuel filter 50 ... Pump-side pipe member 52 ... Inlet part (connection port)
55 ... 1st engagement hole (1st engagement recessed part)
56 ... 2nd engagement hole (2nd engagement recessed part)
58 ... 1st engagement receiving piece (1st engagement recessed part)
60 ... Filter side pipe member 62 ... Outlet part (connection port)
65 ... 1st engagement piece (1st engagement convex part)
66 ... 2nd engagement piece (2nd engagement convex part)
68 ... 1st engagement protrusion (1st engagement convex part)
K1 ... first engaging means K2 ... second engaging means

Claims (4)

燃料ポンプに燃料フィルタを着脱可能に接続する燃料フィルタの取付構造であって、
前記燃料ポンプ側に設けたポンプ側管部材と、
前記燃料フィルタ側に設けたフィルタ側管部材と、
前記ポンプ側管部材と前記フィルタ側管部材との間に設けられた第1係合手段及び第2係合手段と
を備え、
前記第1係合手段は、相互に係脱可能でかつ前記両管部材の接続口の軸線のなす角度が可変となるように係合可能な第1係合凹部と第1係合凸部とにより構成され、
前記第2係合手段は、相互に係脱可能でかつ弾性的に係合可能な第2係合凹部と第2係合凸部とにより構成され、
前記第1係合手段の第1係合凹部と第1係合凸部との係合部を支点とする前記両管部材の接続口の軸線のなす角度が小さくなる方向への回動により、両管部材の接続口が接続されるとともに前記第2係合手段の第2係合凹部と第2係合凸部とが弾性的に係合される構成とした
ことを特徴とする燃料フィルタの取付構造。
A fuel filter mounting structure for detachably connecting a fuel filter to a fuel pump,
A pump side pipe member provided on the fuel pump side;
A filter side pipe member provided on the fuel filter side;
First engagement means and second engagement means provided between the pump side pipe member and the filter side pipe member,
The first engagement means includes a first engagement concave portion and a first engagement convex portion that are engageable and disengageable with each other and that can be engaged so that an angle formed by an axis of a connection port of the pipe members is variable. Composed of
The second engagement means includes a second engagement concave portion and a second engagement convex portion that are detachable from each other and elastically engageable with each other,
By turning in the direction in which the angle formed by the axis of the connection port of the two tube members becomes smaller with the engaging portion of the first engaging concave portion and the first engaging convex portion of the first engaging means as a fulcrum, The connection port of both the pipe members is connected, and the second engagement concave portion and the second engagement convex portion of the second engagement means are elastically engaged with each other. Mounting structure.
請求項1に記載の燃料フィルタの取付構造であって、
前記第1係合手段と前記第2係合手段との間に前記両管部材の接続口が配置されていることを特徴とする燃料フィルタの取付構造。
The fuel filter mounting structure according to claim 1,
A fuel filter mounting structure, wherein a connection port of the both pipe members is disposed between the first engagement means and the second engagement means.
請求項1又は2に記載の燃料フィルタの取付構造であって、
前記第1係合手段の第1係合凹部と第1係合凸部とは、相互の係合により前記両管部材の回動方向以外の方向への相対移動を規制するように構成されていることを特徴とする燃料フィルタの取付構造。
A fuel filter mounting structure according to claim 1 or 2,
The first engagement concave portion and the first engagement convex portion of the first engagement means are configured to restrict relative movement of the two pipe members in directions other than the rotation direction by mutual engagement. A fuel filter mounting structure characterized by comprising:
請求項1〜3のいずれか1つに記載の燃料フィルタの取付構造であって、
前記第2係合手段は、1組をなす第2係合凹部と第2係合凸部とにより構成されていることを特徴とする燃料フィルタの取付構造。
A fuel filter mounting structure according to any one of claims 1 to 3,
2. The fuel filter mounting structure according to claim 1, wherein the second engagement means includes a pair of second engagement recesses and second engagement protrusions.
JP2013004530A 2013-01-15 2013-01-15 Fuel filter mounting structure Expired - Fee Related JP5917419B2 (en)

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