JP2021004565A - Connector with pulsation absorption function - Google Patents

Connector with pulsation absorption function Download PDF

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JP2021004565A
JP2021004565A JP2019118070A JP2019118070A JP2021004565A JP 2021004565 A JP2021004565 A JP 2021004565A JP 2019118070 A JP2019118070 A JP 2019118070A JP 2019118070 A JP2019118070 A JP 2019118070A JP 2021004565 A JP2021004565 A JP 2021004565A
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connector
pulsation
absorber
storage chamber
absorption function
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JP7349127B2 (en
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桝野　哲朗
Tetsuro Masuno
哲朗 桝野
一斉 中嶋
Kazunari Nakajima
一斉 中嶋
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Nichirin Co Ltd
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Nichirin Co Ltd
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Abstract

To provide a connector with a pulsation absorption function in which the effect of pulsation absorption is less likely to change, and which comprises a pulsation absorber with an easy-to-manufacture structure.SOLUTION: A connector 101 (connector with a pulsation absorbing function) includes a pulsation absorber 5 made of a rubber material. This pulsation absorber 5 has: a flat plate-shaped film part 6, wherein the film part 6 is fixed to a connector body part 1 at an outer peripheral edge part 6a and partitions a fluid flow passage 1a and a storage chamber 1b; and a strut part 7 integrally molded with the film part 6, wherein the strut part 7 is arranged in the storage chamber 1b.SELECTED DRAWING: Figure 2

Description

本発明は、脈動吸収機能を有するコネクタに関し、特に、燃料用配管などの接続に用いるのに好適な脈動吸収機能を有するコネクタに関する。 The present invention relates to a connector having a pulsating absorption function, and more particularly to a connector having a pulsating absorption function suitable for use in connecting a fuel pipe or the like.

この種のコネクタとして、例えば、特許文献１、２に記載のコネクタがある。特許文献１に記載のコネクタ（燃料配管用コネクタ）は、ハウジングと一体的に形成されたシリンダを備え、このシリンダの中にピストンが収容される。ピストンの外周部に形成された溝にはＯリング（シール部材）が嵌装される。Ｏリングが嵌装された上記ピストンが脈動吸収の役割を担う。 Examples of this type of connector include the connectors described in Patent Documents 1 and 2. The connector (connector for fuel piping) described in Patent Document 1 includes a cylinder integrally formed with a housing, and a piston is housed in the cylinder. An O-ring (seal member) is fitted in the groove formed on the outer peripheral portion of the piston. The piston fitted with an O-ring plays a role of pulsation absorption.

特許文献２に記載のコネクタ（流体継手）では、継手本体の内部に樹脂またはゴムからなるベローズ（脈動吸収体）が配置される。また、ベローズの内部にコイルばねなどの弾性体を内蔵させた形態も特許文献２に記載されている。 In the connector (fluid coupling) described in Patent Document 2, a bellows (pulsation absorber) made of resin or rubber is arranged inside the joint body. Further, Patent Document 2 also describes a form in which an elastic body such as a coil spring is built in the bellows.

特開２０１１−１６３１５４号公報Japanese Unexamined Patent Publication No. 2011-163154 特開２０１０−７７９７３号公報JP-A-2010-77973

特許文献１、２に記載のコネクタには、次のような問題がある。
特許文献１に記載のコネクタでは、Ｏリングがシリンダの内周面を摺動することで経年変化し、その結果、Ｏリングの摺動抵抗が変化する。これにより、脈動吸収の効果が変化することが懸念される。また、Ｏリングがシリンダの内周面を摺動することで磨耗し、その結果、Ｏリングのシール性能が低下することも懸念される。 The connectors described in Patent Documents 1 and 2 have the following problems.
In the connector described in Patent Document 1, the O-ring slides on the inner peripheral surface of the cylinder and changes over time, and as a result, the sliding resistance of the O-ring changes. There is concern that this will change the effect of pulsation absorption. Further, there is a concern that the O-ring is worn by sliding on the inner peripheral surface of the cylinder, and as a result, the sealing performance of the O-ring is deteriorated.

特許文献２に記載のコネクタでは、ベローズ内部の気密性を保つのが難しい。ベローズ内のガスが抜けると、脈動吸収の効果が変化することが懸念される。また、コイルばねなどの弾性体を内蔵した気密性を有するベローズを製作するのは難しい。 With the connector described in Patent Document 2, it is difficult to maintain the airtightness inside the bellows. There is concern that the effect of pulsation absorption will change if the gas in the bellows escapes. Further, it is difficult to manufacture an airtight bellows having an elastic body such as a coil spring.

本発明は、上記事情に鑑みてなされたものであって、その目的は、脈動吸収の効果が変化しにくく、且つ、製作し易い構造の脈動吸収体を備える脈動吸収機能付きコネクタを提供することである。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector having a pulsating absorption function, which has a pulsating absorber having a structure in which the effect of pulsating absorption is difficult to change and is easy to manufacture. Is.

本発明は、パイプが挿入されるコネクタ本体部と、前記コネクタ本体部から突出する継手部であって、前記コネクタ本体部の内部の流体流路と連通する流路を有する継手部と、前記流体流路を流れる流体の脈動を吸収するための、ゴム材料からなる脈動吸収体と、前記コネクタ本体部の内部に形成され、前記脈動吸収体を格納する格納室と、を備える脈動吸収機能付きコネクタである。前記脈動吸収体は、平板形状の膜部であって、外周縁部において前記コネクタ本体部に固定されて前記流体流路と前記格納室との間を仕切る膜部と、前記膜部と一体成形された支柱部であって、前記格納室に配置される支柱部と、を有する。 The present invention includes a connector main body into which a pipe is inserted, a joint that protrudes from the connector main body and has a flow path that communicates with a fluid flow path inside the connector main body, and the fluid. A connector with a pulsation absorbing function including a pulsating absorber made of a rubber material for absorbing the pulsation of a fluid flowing through a flow path and a storage chamber formed inside the connector main body and storing the pulsating absorber. Is. The pulsation absorber is a flat plate-shaped membrane portion, and is integrally molded with the membrane portion fixed to the connector main body portion at the outer peripheral edge portion and partitioning between the fluid flow path and the storage chamber. It is a strut portion that is provided, and has a strut portion that is arranged in the storage chamber.

本発明における脈動吸収体は、摺動部を有するものではなく、且つ、気密性が必要な内部空間を有するものでもないので、その脈動吸収の効果は変化しにくい。また、一体成形品であるので、製作も容易である。 Since the pulsating absorber in the present invention does not have a sliding portion and does not have an internal space that requires airtightness, the effect of pulsating absorption is unlikely to change. Moreover, since it is an integrally molded product, it is easy to manufacture.

本発明の第１実施形態に係る脈動吸収機能付きコネクタに、パイプが接続された状態の脈動吸収機能付きコネクタの斜視図である。It is a perspective view of the connector with a pulsation absorption function in a state where a pipe is connected to the connector with a pulsation absorption function which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る脈動吸収機能付きコネクタに、パイプが接続された状態の脈動吸収機能付きコネクタの断面図である。It is sectional drawing of the connector with the pulsation absorption function in the state which the pipe is connected to the connector with the pulsation absorption function which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る脈動吸収機能付きコネクタに、パイプが接続された状態の脈動吸収機能付きコネクタの斜視図である。It is a perspective view of the connector with a pulsation absorption function in a state where a pipe is connected to the connector with a pulsation absorption function which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る脈動吸収機能付きコネクタに、パイプが接続された状態の脈動吸収機能付きコネクタの断面図である。It is sectional drawing of the connector with the pulsation absorption function in the state which the pipe is connected to the connector with the pulsation absorption function which concerns on 2nd Embodiment of this invention. 図２、４中に示す脈動吸収体の斜視図である。It is a perspective view of the pulsation absorber shown in FIGS. 2 and 4. 図２、４中に示す脈動吸収体の側面図である。It is a side view of the pulsation absorber shown in FIGS. 2 and 4.

以下、本発明を実施するための形態について、図面を参照しつつ説明する。本実施形態のコネクタ１０１、１０２（脈動吸収機能付きコネクタ）は、例えば、エンジンのインジェクタ（燃料噴射装置、不図示）に、燃料タンクから燃料（ガソリンなどの燃料油）を供給するための燃料配管系統において、配管接続に用いられるコネクタである。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The connectors 101 and 102 (connectors with a pulsation absorption function) of the present embodiment are, for example, fuel pipes for supplying fuel (fuel oil such as gasoline) from a fuel tank to an engine injector (fuel injection device, not shown). It is a connector used for pipe connection in the system.

（第１実施形態）
図１、２に示す第１実施形態のコネクタ１０１は、パイプ５０が挿入されるコネクタ本体部１と、コネクタ本体部１の側面から突出する雄継手部２（継手部）とを備えるＬ字形状のコネクタである。コネクタ本体部１は、上記雄継手部２を有するハウジング３と、ハウジング３の軸方向端部に固定された蓋体４とで構成される。なお、本実施形態では、上記ハウジング３と雄継手部２とは直交しているが、ハウジング３と雄継手部２とが直交している必要はなく、例えば、ハウジング３と雄継手部２とのなす角度が４５度であってもよい。すなわち、上記の「Ｌ字形状」とは、ハウジング３と雄継手部２とのなす角度が、９０度のものだけを含むのではなく、３０度や４５度や６０度など、様々な角度をなすものも含まれる。 (First Embodiment)
The connector 101 of the first embodiment shown in FIGS. 1 and 2 has an L-shape including a connector main body 1 into which the pipe 50 is inserted and a male joint 2 (joint portion) protruding from the side surface of the connector main body 1. It is a connector of. The connector main body 1 is composed of a housing 3 having the male joint 2 and a lid 4 fixed to the axial end of the housing 3. In the present embodiment, the housing 3 and the male joint portion 2 are orthogonal to each other, but the housing 3 and the male joint portion 2 do not have to be orthogonal to each other. For example, the housing 3 and the male joint portion 2 The angle between the joints may be 45 degrees. That is, the above-mentioned "L-shape" does not include only those in which the angle formed by the housing 3 and the male joint portion 2 is 90 degrees, but also various angles such as 30 degrees, 45 degrees, and 60 degrees. Eggplant is also included.

雄継手部２には、例えば、燃料ホース（不図示）が接続される。なお、図１、２中に符号１４を付して示す部品は、コネクタ本体部１にパイプ５０を固定するためのリテーナと呼ばれる部品である。パイプ５０のスプール部５０ａ（環状凸部）とリテーナ１４とが係合させられることで、パイプ５０はコネクタ本体部１に固定（ロック）される。なお、リテーナ１４のより具体的な例については、例えば、特開２０１５−４８８９８号公報に記載のリテーナを参照されたい。 For example, a fuel hose (not shown) is connected to the male joint portion 2. The component indicated by reference numeral 14 in FIGS. 1 and 2 is a component called a retainer for fixing the pipe 50 to the connector main body 1. The pipe 50 is fixed (locked) to the connector main body 1 by engaging the spool portion 50a (annular convex portion) of the pipe 50 with the retainer 14. For a more specific example of the retainer 14, refer to, for example, the retainer described in JP-A-2015-48898.

ハウジング３の内部には、Ｏリング１０、環状のスペーサ１１、Ｏリング１０、環状のスペーサ１２がこの順で挿入されている。なお、本実施形態では、ハウジング３の内部に、Ｏリング１０が２つ挿入されているが、Ｏリング１０の個数は、これに限定されることはない。 An O-ring 10, an annular spacer 11, an O-ring 10, and an annular spacer 12 are inserted into the housing 3 in this order. In the present embodiment, two O-rings 10 are inserted inside the housing 3, but the number of O-rings 10 is not limited to this.

ここで、燃料が流れる雄継手部２の流路２ａ、ハウジング３内部の流体流路１ａ、および、パイプ５０の流路５０ｂは、燃料ポンプ（不図示）により、常時、高い圧力（燃料圧力）がかかった状態となる。そして、インジェクタから燃料が噴射されると、圧力は下がり、インジェクタの弁が閉じると、圧力は上昇する。この繰り返しにより圧力が変動し、この圧力変動が、燃料（流体）の脈動の原因となる。 Here, the flow path 2a of the male joint portion 2 through which fuel flows, the fluid flow path 1a inside the housing 3, and the flow path 50b of the pipe 50 are constantly at high pressure (fuel pressure) by a fuel pump (not shown). Will be applied. Then, when fuel is injected from the injector, the pressure drops, and when the injector valve closes, the pressure rises. The pressure fluctuates due to this repetition, and this pressure fluctuation causes the pulsation of the fuel (fluid).

そこで、上記流路２ａ、流体流路１ａ、および、流路５０ｂなどを流れる燃料（流体）の脈動を吸収するための脈動吸収体５が、コネクタ本体部１の軸方向端部の内部に形成された格納室１ｂに格納される。この脈動吸収体５は、平板形状の膜部６と、膜部６と一体成形された支柱部７とを有し、全てゴム材料（弾性変形可能な材料）からなる。なお、燃料に対する耐液性の観点から、ゴム材料の中でもフッ素ゴムで脈動吸収体５が形成されることが好ましい。膜部６と支柱部７とは、例えば、射出成形により一体成形される。 Therefore, a pulsation absorber 5 for absorbing the pulsation of the fuel (fluid) flowing through the flow path 2a, the fluid flow path 1a, the flow path 50b, and the like is formed inside the axial end portion of the connector main body 1. It is stored in the stored storage room 1b. The pulsation absorber 5 has a flat plate-shaped film portion 6 and a strut portion 7 integrally molded with the film portion 6, all of which are made of a rubber material (elastically deformable material). From the viewpoint of liquid resistance to fuel, it is preferable that the pulsating absorber 5 is formed of fluororubber among the rubber materials. The film portion 6 and the strut portion 7 are integrally molded by, for example, injection molding.

上記膜部６は、その外周縁部６ａにおいてコネクタ本体部１に固定されて、流体流路１ａと格納室１ｂとの間を仕切る。 The film portion 6 is fixed to the connector main body portion 1 at the outer peripheral edge portion 6a thereof, and partitions the fluid flow path 1a and the storage chamber 1b.

支柱部７は、脈動吸収体５の軸方向に延びると共に、当該軸方向において、蓋体４の裏面４ａ（格納室１ｂの内壁面）に当接する。また、上記軸方向に直交する方向においては、支柱部７と格納室１ｂの内壁面との間に隙間Ｓが設けられる。支柱部７は、脈動吸収体５の軸方向に延びる空洞部８を有し、空洞部８は、膜部６とは反対側で開口する。空洞部８の膜部６側の底角部８ａは、全周にわたってＲ面形状とされている。また、膜部６と支柱部７の外周面との境界部９も、全周にわたってＲ面形状とされている。 The strut portion 7 extends in the axial direction of the pulsation absorber 5 and abuts on the back surface 4a (inner wall surface of the storage chamber 1b) of the lid 4 in the axial direction. Further, in the direction orthogonal to the axial direction, a gap S is provided between the support column 7 and the inner wall surface of the storage chamber 1b. The strut portion 7 has a cavity portion 8 extending in the axial direction of the pulsation absorber 5, and the cavity portion 8 opens on the side opposite to the membrane portion 6. The bottom corner portion 8a on the film portion 6 side of the cavity portion 8 has an R-plane shape over the entire circumference. Further, the boundary portion 9 between the film portion 6 and the outer peripheral surface of the strut portion 7 also has an R-plane shape over the entire circumference.

コネクタ本体部１への脈動吸収体５の組み込みは、例えば、次のようにしてなされる。ハウジング３のパイプ５０が挿入される側とは反対側の端部は、流体流路１ａよりも内部空間が大径の筒状部１３とされている。この筒状部１３の内側段部１３ａに、脈動吸収体５の膜部６の外周縁部６ａを当てる。そして、蓋体４の筒状の脚部４ｂを筒状部１３に挿入し、脚部４ｂの先端を膜部６の外周縁部６ａに押し付ける。その後、筒状部１３と蓋体４とを溶着や接着などの方法で接合する。なお、ハウジング３、および、蓋体４は、例えば、樹脂製部品である。 The pulsation absorber 5 is incorporated into the connector main body 1, for example, as follows. The end of the housing 3 opposite to the side on which the pipe 50 is inserted is a tubular portion 13 having a larger internal space than the fluid flow path 1a. The outer peripheral edge portion 6a of the membrane portion 6 of the pulsation absorber 5 is applied to the inner step portion 13a of the tubular portion 13. Then, the tubular leg portion 4b of the lid 4 is inserted into the tubular portion 13, and the tip of the leg portion 4b is pressed against the outer peripheral edge portion 6a of the film portion 6. After that, the tubular portion 13 and the lid 4 are joined by a method such as welding or adhesion. The housing 3 and the lid 4 are, for example, resin parts.

（第２実施形態）
図３、４は、本発明の第２実施形態のコネクタ１０２を示す。なお、このコネクタ１０２に関し、第１実施形態のＬ字形状のコネクタ１０１と同様の部品、部位については、第１実施形態の説明で用いた符号と同一の符号を付している。 (Second Embodiment)
3 and 4 show the connector 102 of the second embodiment of the present invention. Regarding the connector 102, the same parts and parts as those of the L-shaped connector 101 of the first embodiment are designated by the same reference numerals as those used in the description of the first embodiment.

図３、４に示すように、コネクタ１０２は、パイプ５０が挿入されるコネクタ本体部１と、コネクタ本体部１の軸方向端部から突出する雄継手部２（継手部）とを備える直線形状（ストレート型）のコネクタである。なお、本実施形態では、コネクタ本体部１と雄継手部２とは直線上に配置されているが、コネクタ本体部１に対して、雄継手部２が傾いていてもよい。 As shown in FIGS. 3 and 4, the connector 102 has a linear shape including a connector main body 1 into which the pipe 50 is inserted and a male joint 2 (joint portion) protruding from the axial end of the connector main body 1. (Straight type) connector. In the present embodiment, the connector main body 1 and the male joint 2 are arranged on a straight line, but the male joint 2 may be tilted with respect to the connector main body 1.

コネクタ１０２では、ハウジング３のパイプ５０が挿入される側とは反対側の端部側面に、脈動吸収体５を格納する格納室１ｂが形成される。この格納室１ｂは、ハウジング３の軸方向に対して、直交する方向へ延びるように形成されたハウジング３の一部である筒状部１３と、筒状部１３の開口を閉止する蓋体４とで区画形成される空間である。 In the connector 102, a storage chamber 1b for storing the pulsation absorber 5 is formed on the side surface of the end of the housing 3 opposite to the side on which the pipe 50 is inserted. The storage chamber 1b has a tubular portion 13 that is a part of the housing 3 formed so as to extend in a direction orthogonal to the axial direction of the housing 3, and a lid 4 that closes the opening of the tubular portion 13. It is a space formed by and.

第１実施形態の場合と同様に、脈動吸収体５を構成する平板形状の膜部６は、その外周縁部６ａにおいて、上記筒状部１３の内側段部１３ａと蓋体４の脚部４ｂとで挟持されて、コネクタ本体部１に固定される。 Similar to the case of the first embodiment, the flat plate-shaped film portion 6 constituting the pulsation absorber 5 has the inner step portion 13a of the tubular portion 13 and the leg portion 4b of the lid 4 at the outer peripheral edge portion 6a thereof. It is sandwiched between and fixed to the connector main body 1.

また、脈動吸収体５を構成する支柱部７は、脈動吸収体５の軸方向に延びると共に、当該軸方向において、蓋体４の裏面４ａ（格納室１ｂの内壁面）に当接する。また、上記軸方向に直交する方向においては、支柱部７と格納室１ｂの内壁面との間に隙間Ｓが設けられる。支柱部７に空洞部８が形成されたり、空洞部８の膜部６側の底角部８ａ、および、膜部６と支柱部７の外周面との境界部９が、全周にわたってＲ面形状とされたりしているのも、第１実施形態と同じである。 Further, the strut portion 7 constituting the pulsation absorber 5 extends in the axial direction of the pulsation absorber 5 and abuts on the back surface 4a (inner wall surface of the storage chamber 1b) of the lid 4 in the axial direction. Further, in the direction orthogonal to the axial direction, a gap S is provided between the support column 7 and the inner wall surface of the storage chamber 1b. A hollow portion 8 is formed in the strut portion 7, a bottom angle portion 8a on the film portion 6 side of the cavity portion 8 and a boundary portion 9 between the film portion 6 and the outer peripheral surface of the strut portion 7 are R surfaces over the entire circumference. It is the same as the first embodiment that it has a shape.

（作用・効果）
コネクタ１０１、１０２によると、膜部６と支柱部７とで構成された脈動吸収体５が弾性変形することで、流体流路１ａなどを流れる燃料の圧力変動が緩和され、燃料の脈動が抑えられる。その結果、インジェクタから噴射される燃料の量の誤差を所望の範囲内に抑え得る。また、脈動吸収体５を構成する支柱部７の硬度（ゴム材料の硬度）、外径、空洞部８の内径、膜部６の厚みなどを適宜調整することで、流体の様々な脈動周波数に対応することができる。また、脈動吸収体５は、摺動部を有するものではなく、且つ、気密性が必要な内部空間を有するものでもないので、その脈動吸収の効果は変化しにくい。さらに、脈動吸収体５は、一体成形品であるので、製作も容易である。 (Action / effect)
According to the connectors 101 and 102, the pulsation absorber 5 composed of the membrane portion 6 and the support column portion 7 is elastically deformed, so that the pressure fluctuation of the fuel flowing in the fluid flow path 1a and the like is alleviated, and the pulsation of the fuel is suppressed. Be done. As a result, the error in the amount of fuel injected from the injector can be suppressed within a desired range. Further, by appropriately adjusting the hardness (hardness of the rubber material), the outer diameter, the inner diameter of the cavity 8, the thickness of the membrane portion 6 and the like of the strut portion 7 constituting the pulsation absorber 5, various pulsation frequencies of the fluid can be obtained. Can be accommodated. Further, since the pulsation absorber 5 does not have a sliding portion and does not have an internal space that requires airtightness, the effect of pulsation absorption is unlikely to change. Further, since the pulsation absorber 5 is an integrally molded product, it is easy to manufacture.

また、上記支柱部７が、蓋体４の裏面４ａ（格納室１ｂの内壁面）に当接していることで、この支柱部７に裏側から支持されている膜部６の挙動（弾性変形）が安定し、脈動吸収の効果がより変化しにくい。 Further, since the support column 7 is in contact with the back surface 4a (inner wall surface of the storage chamber 1b) of the lid 4, the behavior (elastic deformation) of the film portion 6 supported by the support column 7 from the back side. Is stable and the effect of pulsation absorption is less likely to change.

また、脈動吸収体５の軸方向に直交する方向においては、支柱部７と格納室１ｂの内壁面との間に隙間Ｓが設けられていることで、当該直交する方向に、支柱部７が弾性変形し易くなり、脈動吸収の効果がより得られやすい。 Further, in the direction orthogonal to the axial direction of the pulsation absorber 5, the strut portion 7 is provided in the direction orthogonal to the axial direction by providing the gap S between the strut portion 7 and the inner wall surface of the storage chamber 1b. It becomes easy to elastically deform, and the effect of pulsation absorption is more likely to be obtained.

また、支柱部７に空洞部８を形成することで、流体の様々な脈動周波数に対応し易くなる。なお、脈動吸収体５の設計時点において、空洞部８の深さや内径を調整することで、流体の様々な脈動周波数に対応する。 Further, by forming the cavity portion 8 in the strut portion 7, it becomes easy to correspond to various pulsation frequencies of the fluid. At the time of designing the pulsation absorber 5, the depth and inner diameter of the cavity 8 are adjusted to correspond to various pulsation frequencies of the fluid.

また、空洞部８の膜部６側の底角部８ａが全周にわたってＲ面形状とされたり、膜部６と支柱部７の外周面との境界部９が全周にわたってＲ面形状とされたりすることで、膜部６と支柱部７との境界部（形状変化部）への応力集中を抑制することができ、脈動吸収体５の耐久性が向上する。 Further, the bottom angle portion 8a on the film portion 6 side of the cavity portion 8 has an R-plane shape over the entire circumference, and the boundary portion 9 between the film portion 6 and the outer peripheral surface of the support column 7 has an R-plane shape over the entire circumference. By doing so, it is possible to suppress stress concentration at the boundary portion (shape changing portion) between the film portion 6 and the strut portion 7, and the durability of the pulsation absorber 5 is improved.

（変形例）
上記の実施形態は、次のように変更可能である。
脈動吸収体５を構成する支柱部７と、蓋体４の裏面４ａ（格納室１ｂの内壁面）との間に隙間が形成されていてもよい。 (Modification example)
The above embodiment can be modified as follows.
A gap may be formed between the support column 7 constituting the pulsation absorber 5 and the back surface 4a (inner wall surface of the storage chamber 1b) of the lid 4.

空洞部８を有さない中実の支柱部７とされてもよい。また、上記実施形態では、脈動吸収体５の軸方向に延びる空洞部８とされているが、当該軸方向に直交する方向など、軸方向とは異なる方向へ延びる空洞部が、支柱部７に形成されていてもよい。 It may be a solid strut portion 7 having no cavity portion 8. Further, in the above embodiment, the cavity portion 8 extending in the axial direction of the pulsation absorber 5 is used, but the cavity portion extending in a direction different from the axial direction such as a direction orthogonal to the axial direction is provided in the support column portion 7. It may be formed.

上記実施形態では、膜部６の裏面側（流体流路１ａとは反対側）に支柱部７が１つ形成されているが、膜部６の裏面側（流体流路１ａとは反対側）に、例えば、支柱部７よりも外径が小さい複数の支柱部が形成されてもよい。 In the above embodiment, one support column 7 is formed on the back surface side of the membrane portion 6 (the side opposite to the fluid flow path 1a), but the back surface side of the membrane portion 6 (the side opposite to the fluid flow path 1a). In addition, for example, a plurality of strut portions having an outer diameter smaller than that of the strut portion 7 may be formed.

空洞部８の膜部６側の底角部８ａがＲ面形状とされている必要は必ずしもなく、例えば、Ｃ面形状とされてもよいし、全周にわたっていなくてもよい。膜部６と支柱部７の外周面との境界部９についても同様であり、当該境界部９がＲ面形状とされている必要は必ずしもなく、例えば、Ｃ面形状とされてもよいし、全周にわたっていなくてもよい。 The bottom angle portion 8a on the film portion 6 side of the cavity portion 8 does not necessarily have to have an R-plane shape, and may, for example, have a C-plane shape or may not cover the entire circumference. The same applies to the boundary portion 9 between the film portion 6 and the outer peripheral surface of the strut portion 7, and the boundary portion 9 does not necessarily have to have an R-plane shape, and may have a C-plane shape, for example. It does not have to be all around.

コネクタ１０１、１０２の雄継手部２の部分については、この部分が、ネジ継手、フランジ継手などにされてもよい。 Regarding the portion of the male joint portion 2 of the connectors 101 and 102, this portion may be a screw joint, a flange joint, or the like.

また、コネクタ１０１、１０２の用途は、燃料用配管などの接続に限られるものではない。例えば、内部に水が流れる配管などの接続にコネクタ１０１、１０２を用いてもよい。脈動吸収体５で、水の脈動を抑えることができるとともに、水が凍ったときに、コネクタ本体部１や、接続されているパイプの割れを抑制することができる。さらには、圧縮空気が流れる配管などの接続用に、コネクタ１０１、１０２を用いてもよく、この用途では、圧縮空気の脈動が抑えられる。 Further, the applications of the connectors 101 and 102 are not limited to the connection of fuel piping and the like. For example, connectors 101 and 102 may be used for connecting a pipe or the like through which water flows inside. The pulsation absorber 5 can suppress the pulsation of water, and can also suppress cracking of the connector main body 1 and the connected pipe when the water freezes. Further, connectors 101 and 102 may be used for connecting a pipe or the like through which compressed air flows, and in this application, pulsation of compressed air is suppressed.

その他に、当業者が想定できる範囲で、種々の変更を行えることは勿論である。 In addition, it goes without saying that various changes can be made within the range that can be assumed by those skilled in the art.

１：コネクタ本体部
１ａ：流体流路
１ｂ：格納室
２：雄継手部（継手部）
２ａ：流路
５：脈動吸収体
６：膜部
６ａ：外周縁部
７：支柱部
８：空洞部
８ａ：底角部
９：境界部
５０：パイプ
１０１、１０２：コネクタ（脈動吸収機能付きコネクタ）
Ｓ：隙間 1: Connector body 1a: Fluid flow path 1b: Storage chamber 2: Male joint (joint)
2a: Flow path 5: Pulsating absorber 6: Membrane 6a: Outer peripheral edge 7: Strut 8: Cavity 8a: Bottom angle 9: Boundary 50: Pipe 101, 102: Connector (connector with pulsating absorption function)
S: Gap

Claims (5)

パイプが挿入されるコネクタ本体部と、
前記コネクタ本体部から突出する継手部であって、前記コネクタ本体部の内部の流体流路と連通する流路を有する継手部と、
前記流体流路を流れる流体の脈動を吸収するための、ゴム材料からなる脈動吸収体と、
前記コネクタ本体部の内部に形成され、前記脈動吸収体を格納する格納室と、
を備え、
前記脈動吸収体は、
平板形状の膜部であって、外周縁部において前記コネクタ本体部に固定されて前記流体流路と前記格納室との間を仕切る膜部と、
前記膜部と一体成形された支柱部であって、前記格納室に配置される支柱部と、
を有する、
脈動吸収機能付きコネクタ。 The connector body into which the pipe is inserted and
A joint portion that protrudes from the connector main body portion and has a flow path that communicates with a fluid flow path inside the connector main body portion.
A pulsation absorber made of a rubber material for absorbing the pulsation of the fluid flowing through the fluid flow path,
A storage chamber formed inside the connector body and storing the pulsating absorber, and
With
The pulsation absorber
A flat plate-shaped membrane portion, which is fixed to the connector main body portion at the outer peripheral edge portion and partitions the fluid flow path and the storage chamber.
A strut portion integrally molded with the film portion, the strut portion arranged in the storage chamber, and a strut portion.
Have,
Connector with pulsation absorption function. 請求項１に記載の脈動吸収機能付きコネクタにおいて、
前記支柱部は、前記脈動吸収体の軸方向に延びると共に、当該軸方向において、前記格納室の内壁面に当接しており、
前記軸方向に直交する方向においては、前記支柱部と前記格納室の内壁面との間に隙間が形成されている、
脈動吸収機能付きコネクタ。 In the connector with a pulsation absorbing function according to claim 1.
The strut portion extends in the axial direction of the pulsation absorber and is in contact with the inner wall surface of the storage chamber in the axial direction.
In the direction orthogonal to the axial direction, a gap is formed between the support column portion and the inner wall surface of the storage chamber.
Connector with pulsation absorption function. 請求項１または２に記載の脈動吸収機能付きコネクタにおいて、
前記支柱部に、開口を有する空洞部が形成されている、
脈動吸収機能付きコネクタ。 In the connector with a pulsating absorption function according to claim 1 or 2.
A cavity having an opening is formed in the support column.
Connector with pulsation absorption function. 請求項３に記載の脈動吸収機能付きコネクタにおいて、
前記空洞部は、前記脈動吸収体の軸方向に延び、
前記空洞部の前記膜部側の底角部がＲ面形状とされている、
脈動吸収機能付きコネクタ。 In the connector with a pulsation absorbing function according to claim 3.
The cavity extends in the axial direction of the pulsation absorber.
The bottom corner of the cavity on the film side has an R-plane shape.
Connector with pulsation absorption function. 請求項１〜４のいずれかに記載の脈動吸収機能付きコネクタにおいて、
前記膜部と前記支柱部の外周面との境界部がＲ面形状とされている、
脈動吸収機能付きコネクタ。 In the connector with a pulsation absorbing function according to any one of claims 1 to 4.
The boundary between the film portion and the outer peripheral surface of the strut portion has an R-plane shape.
Connector with pulsation absorption function.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022209629A1 (en) * 2021-03-29 2022-10-06 住友理工株式会社 Connector
WO2023162703A1 (en) * 2022-02-25 2023-08-31 住友理工株式会社 Connector and connector manufacturing method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS47347B1 (en) * 1966-05-26 1972-01-07
JP2000517034A (en) * 1997-04-23 2000-12-19 ヴァレオ Automotive clutch pedal vibration absorber
JP2004183812A (en) * 2002-12-04 2004-07-02 Nissan Motor Co Ltd Hydraulic coupling
JP2010077973A (en) * 2009-12-25 2010-04-08 Nissan Motor Co Ltd Fluid coupling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS47347B1 (en) * 1966-05-26 1972-01-07
JP2000517034A (en) * 1997-04-23 2000-12-19 ヴァレオ Automotive clutch pedal vibration absorber
JP2004183812A (en) * 2002-12-04 2004-07-02 Nissan Motor Co Ltd Hydraulic coupling
JP2010077973A (en) * 2009-12-25 2010-04-08 Nissan Motor Co Ltd Fluid coupling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022209629A1 (en) * 2021-03-29 2022-10-06 住友理工株式会社 Connector
WO2023162703A1 (en) * 2022-02-25 2023-08-31 住友理工株式会社 Connector and connector manufacturing method

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