JP2020006803A - Fuel oil feed pipe - Google Patents
Fuel oil feed pipe Download PDFInfo
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- JP2020006803A JP2020006803A JP2018129691A JP2018129691A JP2020006803A JP 2020006803 A JP2020006803 A JP 2020006803A JP 2018129691 A JP2018129691 A JP 2018129691A JP 2018129691 A JP2018129691 A JP 2018129691A JP 2020006803 A JP2020006803 A JP 2020006803A
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Abstract
Description
本発明は、車両の燃料タンクにガソリン等の燃料を給油する際の通路となる燃料給油管に関する。 The present invention relates to a fuel supply pipe serving as a passage for supplying fuel such as gasoline to a fuel tank of a vehicle.
従来より、車両の軽量化や低コスト化を目的として、燃料給油管の全部又は一部を樹脂材で形成する取り組みがなされている。例えば、特許文献１に開示されている燃料給油管は、燃料タンクに一端が接続される樹脂材で形成された円筒状の給油管本体と、該給油管本体の他端開口に組み付けられ、給油ガンのノズルを給油管本体の内側に案内する円筒状のノズルガイドとを備えている。 2. Description of the Related Art Conventionally, efforts have been made to form all or a part of a fuel supply pipe from a resin material for the purpose of reducing the weight and cost of a vehicle. For example, a fuel filler pipe disclosed in Patent Document 1 is assembled to a cylindrical filler pipe main body formed of a resin material having one end connected to a fuel tank, and assembled to the other end opening of the fuel filler pipe main body. And a cylindrical nozzle guide for guiding the nozzle of the gun to the inside of the oil supply pipe main body.
ところで、特許文献１では、ノズルガイドを給油管本体の他端開口に圧入することにより給油管本体に組み付けている。したがって、燃料給油管とノズルガイドとの間の気密性を高めるために、外径が給油管本体の内径よりも大きく設計されたノズルガイドを給油管本体に圧入させる必要があり、組立作業に大きな力を必要とするので、組立作業が煩雑であるという問題がある。 By the way, in Patent Document 1, the nozzle guide is press-fitted into the other end opening of the oil supply pipe main body to be assembled to the oil supply pipe main body. Therefore, in order to increase the airtightness between the fuel filler pipe and the nozzle guide, it is necessary to press-fit the nozzle guide whose outer diameter is designed to be larger than the inner diameter of the fuel filler pipe main body into the fuel filler pipe main body, which is a large part of the assembly work. Since power is required, there is a problem that the assembling work is complicated.
また、圧入によりノズルガイドを給油管本体に組み付ける場合、組立後の給油管本体に対するノズルガイドの取付位置にばらつきが生じ易いという問題もある。 Further, when the nozzle guide is assembled to the oil supply pipe main body by press-fitting, there is a problem that the mounting position of the nozzle guide with respect to the oil supply pipe main body after assembly is likely to vary.
これを回避するために、給油管本体とノズルガイドとを溶着等の接合によって一体にすることも考えられるが、ノズルガイドが金属体である場合には、樹脂材からなる給油管本体とノズルガイドとの間の接合が技術的に困難で実現が難しいという問題がある。 In order to avoid this, the oil supply pipe main body and the nozzle guide may be integrated by welding or the like. However, when the nozzle guide is a metal body, the oil supply pipe main body made of a resin material and the nozzle guide are combined. There is a problem that the bonding between them is technically difficult and difficult to realize.
本発明は、斯かる点に鑑みてなされたものであり、その目的とするところは、樹脂材からなる給油管本体と金属材からなるノズルガイドとの間における組立作業が簡単であり、しかも給油管本体に対してノズルガイドを正確な位置に組み付けた状態にすることができる燃料給油管を提供することにある。 The present invention has been made in view of such a point, and an object thereof is to simplify an assembling operation between an oil supply pipe body made of a resin material and a nozzle guide made of a metal material, and It is an object of the present invention to provide a fuel supply pipe capable of assembling a nozzle guide at an accurate position with respect to a pipe main body.
上記の目的を達成するために、本発明は、互いに螺合可能で、且つ、給油管本体とノズルガイドとにそれぞれ外嵌合する２つのリング体を用いて給油管本体とノズルガイドとを一体にするようにしたことを特徴とする。 In order to achieve the above object, the present invention provides a method for integrating an oil supply pipe main body and a nozzle guide using two ring bodies that can be screwed together and that are externally fitted to the oil supply pipe main body and a nozzle guide, respectively. It is characterized in that it is made to.
具体的には、燃料タンクに一端が接続される円筒状の樹脂製給油管本体と、一端側が上記給油管本体の他端開口に組み付けられる一方、他端開口に給油キャップが着脱可能に取り付けられ、当該給油キャップが取り外された状態で、給油ガンのノズルを上記給油管本体の内側に案内する円筒状の金属製ノズルガイドとを備えた燃料給油管において、次のような解決手段を講じた。 Specifically, a cylindrical resin oil supply pipe main body having one end connected to the fuel tank, and one end side is assembled to the other end opening of the oil supply pipe main body, and an oil supply cap is detachably attached to the other end opening. In the fuel supply pipe provided with a cylindrical metal nozzle guide for guiding the nozzle of the fuel supply gun to the inside of the fuel supply pipe main body in a state where the fuel supply cap is removed, the following solution is taken. .
すなわち、第１の発明では、上記ノズルガイドにその筒中心線周りに回転可能に外嵌合された第１リング体と、上記給油管本体にその筒中心線周りに回転可能に外嵌合された第２リング体とを備え、上記ノズルガイドには、当該ノズルガイドの一端開口周縁から径方向外側に張り出す環状のフランジ部が設けられ、上記給油管本体の他端側外周面には、当該給油管本体の他端側を上記ノズルガイドの一端開口から当該ノズルガイドの内方に挿入した状態で上記ノズルガイドの内周面との間をシールする環状シール部と、径方向外側に張り出すとともに上記給油管本体の周方向に延びる環状をなし、上記給油管本体の他端側を上記ノズルガイドの一端開口から当該ノズルガイドの内方に挿入した状態で上記フランジ部に対応する環状張出部とが設けられ、上記第１及び第２リング体のいずれか一方の外周面には、雄螺子部が形成され、上記第１及び第２リング体のいずれか他方の内周面には、上記雄螺子部が螺合する雌螺子部と、内側方に突出するとともに、上記雄螺子部を上記雌螺子部に螺合させることにより、上記第１及び第２リング体のいずれか一方との間に上記フランジ部と上記環状張出部とを重ねた状態で挟み込んで固定する突出部とが設けられていることを特徴とする。 That is, in the first invention, the first ring body rotatably fitted around the cylinder center line to the nozzle guide, and the outer ring body rotatably fitted around the cylinder center line to the oil supply pipe main body. A second ring body, the nozzle guide is provided with an annular flange portion that protrudes radially outward from the peripheral edge of one end opening of the nozzle guide, and an outer peripheral surface on the other end side of the oil supply pipe main body is provided with: An annular seal portion for sealing between the other end of the oil supply pipe main body and the inner peripheral surface of the nozzle guide in a state where the other end side of the main body is inserted from one end opening of the nozzle guide to the inside of the nozzle guide; An annular extension extending in the circumferential direction of the oil supply pipe main body, the annular tension corresponding to the flange portion in a state where the other end side of the oil supply pipe main body is inserted into the nozzle guide from one end opening of the nozzle guide. Departure A male screw portion is formed on one of the outer peripheral surfaces of the first and second ring members, and the male screw portion is formed on the other inner peripheral surface of the first and second ring members. The female screw portion to which the portion is screwed and the male screw portion projecting inward, and the male screw portion is screwed to the female screw portion, so that the above-mentioned portion is formed between one of the first and second ring bodies. A feature is provided in which a projection is provided for sandwiching and fixing the flange portion and the annular projecting portion in an overlapping state.
第２の発明では、第１の発明において、上記給油管本体の他端側外周面には、当該給油管本体の周方向に延びる環状凹条溝が設けられ、上記環状シール部は、上記環状凹条溝に嵌合するリング状のゴム体であることを特徴とする。 According to a second aspect, in the first aspect, an annular concave groove extending in a circumferential direction of the oil supply pipe main body is provided on an outer peripheral surface on the other end side of the oil supply pipe main body, and the annular seal portion is provided in the annular shape. It is a ring-shaped rubber body fitted into the concave groove.
第３の発明では、第２の発明において、上記給油管本体の他端側外周面には、当該給油管本体の一端側より他端側の外径を小さくする環状段差部が設けられ、
上記給油管本体の他端開口周縁と上記環状段差部との間には、１つ以上のリング状部材が外嵌合しており、上記環状凹条溝は、上記環状段差部と上記リング状部材との間と上記給油管本体の外周面とで囲われる部分か、或いは、隣り合う２つの上記リング状部材の間と上記給油管本体の外周面とで囲われる部分により構成されていることを特徴とする。
In a third aspect based on the second aspect, an annular step portion is provided on an outer peripheral surface on the other end side of the oil supply pipe main body so as to reduce the outer diameter at the other end side from one end side of the oil supply pipe main body,
One or more ring-shaped members are externally fitted between the peripheral edge of the opening at the other end of the oil supply pipe main body and the annular step, and the annular concave groove is formed between the annular step and the ring-shaped step. A portion enclosed between the member and the outer peripheral surface of the oil supply pipe main body, or a part enclosed between two adjacent ring-shaped members and the outer peripheral surface of the oil supply pipe main body. It is characterized by.
第４の発明では、第１の発明において、上記環状シール部は、ゴム材からなる一体成形品であり、上記給油管本体の他端開口周縁と上記環状張出部との間に外嵌合される筒状部と、該筒状部の上記環状張出部側開口周縁に設けられ、当該環状張出部に沿うように外側方に突出するとともに上記筒状部の周方向に延びる環状壁部と、上記筒状部の外周面に形成され、外側方に膨出するとともに上記筒状部の周方向に延びて上記ノズルガイドの内周面と上記筒状部との間をシールする環状膨出部とを備え、上記環状壁部は、上記ノズルガイドの一端開口から当該ノズルガイドの内方に上記給油管本体の他端側を挿入した際、上記フランジ部と上記環状張出部とに挟み込まれるようになっていることを特徴とする。 In a fourth aspect based on the first aspect, the annular seal portion is an integrally molded product made of a rubber material, and is externally fitted between the peripheral edge of the other end opening of the oil supply pipe main body and the annular projecting portion. A cylindrical portion to be provided, and an annular wall provided on the peripheral edge of the opening of the cylindrical portion on the side of the annular projecting portion, protruding outward along the annular projecting portion, and extending in the circumferential direction of the cylindrical portion. And an annular portion formed on the outer peripheral surface of the cylindrical portion and bulging outward and extending in the circumferential direction of the cylindrical portion to seal between the inner peripheral surface of the nozzle guide and the cylindrical portion. A bulging portion, wherein the annular wall portion is configured such that when the other end side of the oil supply pipe main body is inserted inside the nozzle guide from one end opening of the nozzle guide, the flange portion and the annular projecting portion are provided. It is characterized by being sandwiched between.
第５の発明では、第１から第４のいずれか１つの発明において、上記第１及び第２リング体のいずれか一方は、径方向に２分割された半割形状の第１分割体及び第２分割体を互いに突き合わせて組み立てた組立体であることを特徴とする。 According to a fifth aspect, in any one of the first to fourth aspects, one of the first and second ring bodies is a half-shape first divided body divided into two in a radial direction and a second divided body. It is characterized in that it is an assembly obtained by assembling two divided bodies with each other.
第１の発明では、ノズルガイドを給油管本体に組み付ける際、給油管本体の他端側をノズルガイドの内方にその一端開口から挿入すると、ノズルガイドのフランジ部に給油管本体の環状張出部が当接してフランジ部と環状張出部とが重なり合うので、給油管本体をノズルガイドの内方にそれ以上挿入できなくなる。したがって、給油管本体のノズルガイドに対する筒中心線方向の位置が正確に決まるので、給油管本体に対してノズルガイドを正確な位置に組み付けた状態にすることができる。また、第１リング体と第２リング体とを互いに螺合させる作業によりノズルガイドを給油管本体から外れないようにすることができ、特許文献１の如き圧入作業を行う必要が無いので、燃料給油管の組立作業が簡単である。さらに、給油管本体が樹脂体で、且つ、ノズルガイドが金属体であっても、本発明の構造を適用することにより、給油管本体にノズルガイドを圧入させることなく給油管本体とノズルガイドとを組み立てることができる。 In the first invention, when the other end of the oil supply pipe body is inserted into the nozzle guide from one end opening when the nozzle guide is assembled to the oil supply pipe main body, the annular protrusion of the oil supply pipe main body is inserted into the flange portion of the nozzle guide. Since the portions abut and the flange portion and the annular projecting portion overlap, the oil supply pipe main body cannot be inserted further into the nozzle guide. Therefore, the position of the fuel supply pipe main body in the direction of the center line of the cylinder with respect to the nozzle guide is accurately determined, so that the nozzle guide can be assembled at an accurate position with respect to the fuel supply pipe main body. In addition, the work of screwing the first ring body and the second ring body together can prevent the nozzle guide from coming off the oil supply pipe main body, and there is no need to perform the press-fitting work as in Patent Document 1, so that the fuel The work of assembling the oil supply pipe is simple. Furthermore, even if the oil supply pipe main body is a resin body and the nozzle guide is a metal body, by applying the structure of the present invention, the oil supply pipe main body and the nozzle guide can be formed without pressing the nozzle guide into the oil supply pipe main body. Can be assembled.
第２の発明では、樹脂材よりも比較的柔らかいリング状のゴム体を用いて給油管本体の外周面とノズルガイドの内周面との間の隙間が埋まるように給油管本体とノズルガイドとを組み立てているので、給油管本体とノズルガイドとの間の気密性が高い燃料給油管にすることができる。 In the second invention, the oil supply pipe main body and the nozzle guide are so formed as to fill the gap between the outer peripheral surface of the oil supply pipe main body and the inner peripheral surface of the nozzle guide using a ring-shaped rubber body relatively softer than the resin material. Is assembled, it is possible to provide a highly fuel-tight fuel supply pipe between the supply pipe main body and the nozzle guide.
第３の発明では、給油管本体の他端側にリング状部材を嵌め込む作業だけでゴム体を嵌合させるための環状凹条溝が給油管本体の外周面に形成されるので、給油管本体の成形時に環状凹条溝を一体に成形する必要が無くなり、給油管本体を成形する成形型を複雑な形状にする必要が無くなってコストを抑えることができる。 According to the third aspect, the annular groove for fitting the rubber body is formed on the outer peripheral surface of the oil supply pipe main body only by fitting the ring-shaped member to the other end side of the oil supply pipe main body. When the main body is formed, it is not necessary to integrally form the annular groove, and it is not necessary to form a complicated mold for forming the oil supply pipe main body, so that the cost can be reduced.
第４の発明では、燃料給油管を組み立てる際、環状シール部の環状壁部がノズルガイドのフランジ部と給油管本体の環状張出部との間に位置するので、第１リング体及び第２リング体でフランジ部と環状張出部とを挟み込むと、環状壁部がフランジ部と環状張出部との間に固定されるようになる。したがって、環状シール部が給油管本体から不意に外れてしまうのを確実に防ぐことができ、ノズルガイドと給油管本体との間の気密性を確実に確保した状態に維持することができる。 According to the fourth aspect, when assembling the fuel filler pipe, the annular wall of the annular seal is located between the flange of the nozzle guide and the annular protrusion of the filler pipe main body. When the flange and the annular protrusion are sandwiched by the ring body, the annular wall is fixed between the flange and the annular protrusion. Therefore, it is possible to reliably prevent the annular seal portion from unexpectedly coming off the oil supply pipe main body, and to maintain a state in which the airtightness between the nozzle guide and the oil supply pipe main body is reliably ensured.
第５の発明では、第１及び第２リング体のいずれか一方をノズルガイドか、或いは、給油管本体に組み付ける際、第１及び第２リング体のいずれか一方の内方にノズルガイドか、或いは、給油管本体を挿入するという作業を行う必要が無くなる。したがって、例えば、ノズルガイドに設けられたフランジ部や、給油管本体に設けられた環状張出部が組付作業の邪魔になるといったことを回避することができる。 In the fifth invention, either one of the first and second ring bodies is a nozzle guide or, when assembling to the oil supply pipe main body, a nozzle guide is provided inside one of the first and second ring bodies, Alternatively, there is no need to perform the operation of inserting the oil supply pipe main body. Therefore, for example, it is possible to avoid that the flange portion provided on the nozzle guide and the annular projecting portion provided on the oil supply pipe main body obstruct the assembling work.
以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example.
《発明の実施形態１》
図１及び図２は、本発明の実施形態１に係る車両用の燃料給油管１を示す。該燃料給油管１は、車両の燃料タンク３に燃料を給油する際の燃料の通路となるものであり、燃料タンク３に一端が接続される円筒状の樹脂製給油管本体２を備えている。
<< First Embodiment of the Invention >>
1 and 2 show a fuel supply pipe 1 for a vehicle according to a first embodiment of the present invention. The fuel supply pipe 1 serves as a fuel passage when fuel is supplied to the fuel tank 3 of the vehicle, and includes a cylindrical resin supply pipe main body 2 having one end connected to the fuel tank 3. .
給油管本体２は、ブロー成形により製造されたブロー成形体であり、その他端側には、給油管本体２の一端から中途部に亘る部分よりも径が大きい拡管部２０が形成されている。尚、以下では、給油管本体２の他端開口を拡管開口部２０ａと呼ぶことにする。 The fuel supply pipe main body 2 is a blow-molded body manufactured by blow molding, and an expanded portion 20 having a larger diameter than a portion extending from one end to an intermediate part of the fuel supply pipe main body 2 is formed on the other end side. Hereinafter, the other end opening of the fuel supply pipe main body 2 will be referred to as an expanded pipe opening 20a.
給油管本体２は、図３及び図４に示すように、筒中心線Ｃ１が一致する第１円筒体２１及び第２円筒体２２を備えている。 As shown in FIGS. 3 and 4, the fuel supply pipe main body 2 includes a first cylindrical body 21 and a second cylindrical body 22 having the same cylinder center line C1.
第１円筒体２１は、給油管本体２の一端から他端寄りの位置までを構成する一方、第２円筒体２２は、給油管本体２の他端側を構成していて、第２円筒体２２は、熱板溶着又は振動溶着により第１円筒体２１の第２円筒体２２側の開口周縁に組み付けられている。 The first cylindrical body 21 constitutes from one end of the oil supply pipe main body 2 to a position near the other end, while the second cylindrical body 22 constitutes the other end side of the oil supply pipe main body 2, and the second cylindrical body Reference numeral 22 is attached to the periphery of the opening of the first cylindrical body 21 on the second cylindrical body 22 side by hot plate welding or vibration welding.
第１円筒体２１における第２円筒体２２側の開口周縁には、径方向外側に張り出すとともに第１円筒体２１の周方向に延びる環状張出部２１ａが形成されている。 An annular projecting portion 21 a that extends radially outward and extends in the circumferential direction of the first cylindrical body 21 is formed on the periphery of the opening of the first cylindrical body 21 on the second cylindrical body 22 side.
該環状張出部２１ａは、第２円筒体２２を第１円筒体２１に溶着する際に第１円筒体２１の溶けた部分を外測方に押し広げることにより形成されている。 The annular projecting portion 21a is formed by pushing a melted portion of the first cylindrical body 21 outward when the second cylindrical body 22 is welded to the first cylindrical body 21.
第２円筒体２２の外周面には、当該第２円筒体２２の周方向に延びる一対の環状凹条溝２２ａが並設されている。 On the outer peripheral surface of the second cylindrical body 22, a pair of annular concave grooves 22a extending in the circumferential direction of the second cylindrical body 22 are provided in parallel.
すなわち、給油管本体２における拡管部２０の外周面には、上記環状凹条溝２２ａが設けられている。 That is, the annular concave groove 22a is provided on the outer peripheral surface of the expanded pipe portion 20 in the fuel supply pipe main body 2.
各環状凹条溝２２ａには、ゴム体であるリング状のシール部材１０（環状シール部）が嵌合している。 A ring-shaped seal member 10 (annular seal portion), which is a rubber body, is fitted into each annular concave groove 22a.
拡管部２０における環状張出部２１ａよりも拡管開口部２０ａから遠い部分には、図２に示すように、外側方に略円盤状に膨出する膨出部２３が形成され、該膨出部２３には、給油管本体２の内側と外側とを連通させる取付孔２３ａが形成されている。 As shown in FIG. 2, a bulging portion 23 bulging outward in a substantially disk shape is formed in a portion of the flaring portion 20 farther from the flared opening portion 20a than the annular bulging portion 21a. 23 has a mounting hole 23a for communicating the inside and outside of the oil supply pipe main body 2 with each other.
燃料給油管１は、図１に示すように、短い略円筒状をなすノズルガイド４を備え、該ノズルガイド４の一端側が給油管本体２の拡管開口部２０ａに組み付けられている。 As shown in FIG. 1, the fuel supply pipe 1 includes a short and substantially cylindrical nozzle guide 4, and one end of the nozzle guide 4 is assembled to the expanded pipe opening 20 a of the fuel supply pipe main body 2.
ノズルガイド４の他端開口には、給油キャップ１１が着脱可能に取り付けられ、ノズルガイド４は、図３に示すように、当該給油キャップ１１が取り外された状態で、給油ガンＧのノズルＧ１を給油管本体２の内側に案内するようになっている。 A refueling cap 11 is detachably attached to the other end opening of the nozzle guide 4, and the nozzle guide 4, when the refueling cap 11 is removed, connects the nozzle G <b> 1 of the refueling gun G, as shown in FIG. 3. It is designed to be guided inside the oil supply pipe main body 2.
ノズルガイド４は、図２乃至図４に示すように、鉄板をプレス成形することにより得られた短い円筒状をなす金属体である。 As shown in FIGS. 2 to 4, the nozzle guide 4 is a short cylindrical metal body obtained by press-forming an iron plate.
ノズルガイド４の中途部には、当該ノズルガイド４の一端側から他端側に行くにつれて次第に拡径する環状傾斜部４ａが設けられ、該環状傾斜部４ａによってノズルガイド４の一端側略半分の外径が他端側略半分の外径よりも小さくなっている。 In the middle of the nozzle guide 4, there is provided an annular inclined portion 4 a whose diameter gradually increases from one end to the other end of the nozzle guide 4. The outer diameter is smaller than the outer diameter of approximately half of the other end.
ノズルガイド４の一端開口周縁には、径方向外側に張り出す環状のフランジ部４ｂが設けられている。 An annular flange portion 4b that protrudes radially outward is provided on the periphery of the one end opening of the nozzle guide 4.
一方、ノズルガイド４の他端開口周縁部分には、径方向外側に折り返された環状の折返部４ｃが形成され、ノズルガイド４の他端側における折返部４ｃ寄りの位置には、一条の螺合部４ｄが形成されている。 On the other hand, an annular folded portion 4c that is folded outward in the radial direction is formed on the periphery of the opening at the other end of the nozzle guide 4, and a single screw is provided at a position near the folded portion 4c at the other end of the nozzle guide 4. A joint 4d is formed.
ノズルガイド４の一端側内方には、給油管本体２の拡管部２０がノズルガイド４の一端開口から挿入されるようになっていて、拡管部２０をノズルガイド４の内方に挿入した状態で各シール部材１０がノズルガイド４の内周面と給油管本体２の外周面との間をシールするようになっている。 Inside the one end side of the nozzle guide 4, the expanded portion 20 of the oil supply pipe main body 2 is inserted from one end opening of the nozzle guide 4, and the expanded portion 20 is inserted inside the nozzle guide 4. Each seal member 10 seals between the inner peripheral surface of the nozzle guide 4 and the outer peripheral surface of the oil supply pipe main body 2.
また、給油管本体２の環状張出部２１ａは、拡管部２０をノズルガイド４の一端開口から当該ノズルガイド４の内方に挿入した状態でノズルガイド４のフランジ部４ｂに対応するようになっている。 Further, the annular projecting portion 21a of the fuel supply pipe main body 2 corresponds to the flange portion 4b of the nozzle guide 4 in a state where the expanded tube portion 20 is inserted into the nozzle guide 4 from one end opening of the nozzle guide 4. ing.
ノズルガイド４には、図２乃至図４に示すように、アルミニウム合金製の第１リング体５が外嵌合しており、該第１リング体５は、ノズルガイド４の筒中心線Ｃ１周りに回転可能になっている。 As shown in FIGS. 2 to 4, a first ring body 5 made of an aluminum alloy is externally fitted to the nozzle guide 4, and the first ring body 5 is arranged around a cylinder center line C 1 of the nozzle guide 4. It is rotatable.
該第１リング体５は、図２に示すように、径方向に２分割された半割形状の第１分割体５ａ及び第２分割体５ｂを互いに突き合わせて組み立てた組立体であり、その外周面には、雄螺子部５ｃが形成されている。 As shown in FIG. 2, the first ring body 5 is an assembly in which a first half body 5a and a second half body 5b each having a half-shape divided in the radial direction are joined to each other, and the outer periphery thereof is formed. A male screw portion 5c is formed on the surface.
また、給油管本体２には、アルミニウム合金製の第２リング体６が外嵌合しており、該第２リング体６は、給油管本体２の筒中心線Ｃ１周りに回転可能になっている。 Further, a second ring body 6 made of an aluminum alloy is externally fitted to the oil supply pipe main body 2, and the second ring body 6 is rotatable around a cylinder center line C <b> 1 of the oil supply pipe main body 2. I have.
第２リング体６の一端開口側内周面には、図５及び図６に示すように、第１リング体５の雄螺子部５ｃが螺合可能な雌螺子部６ａが形成されている。 As shown in FIGS. 5 and 6, a female screw portion 6 a to which the male screw portion 5 c of the first ring member 5 can be screwed is formed on the inner peripheral surface on one end opening side of the second ring member 6.
一方、第２リング体６の他端側内周面には、当該第２リング体６の内側方に突出するとともに当該第２リング体６の周方向に延びる環状突出部６ｂが形成され、該環状突出部６ｂの突出高さは、給油管本体２の環状張出部２１ａ及びフランジ部４ｂの張出高さに対応している。 On the other hand, on the inner peripheral surface on the other end side of the second ring body 6, an annular projecting portion 6b that protrudes inward of the second ring body 6 and extends in the circumferential direction of the second ring body 6 is formed. The projecting height of the annular projecting portion 6b corresponds to the projecting height of the annular projecting portion 21a of the oil supply pipe main body 2 and the flange portion 4b.
環状突出部６ｂは、図７に示すように、給油管本体２の拡管部２０をノズルガイド４の一端開口から当該ノズルガイド４の内方に挿入した状態で第１リング体５と第２リング体６とを互いに接近させるとともに第１リング体５をＸ１方向に回転させて雄螺子部５ｃを雌螺子部６ａに螺合させることにより、第１リング体５との間にフランジ部４ｂと環状張出部２１ａとを重ねた状態で挟み込んで固定するようになっている。 As shown in FIG. 7, the annular projecting portion 6b is provided with the first ring member 5 and the second ring member 5 in a state where the expanded pipe portion 20 of the oil supply pipe main body 2 is inserted into the nozzle guide 4 from one end opening of the nozzle guide 4. The first ring body 5 is rotated in the X1 direction and the male screw part 5c is screwed into the female screw part 6a by bringing the first ring body 5 close to the first ring body 5 so that the flange part 4b and the The overhanging portion 21a is sandwiched and fixed in an overlapping state.
尚、第２リング体６に対して第１リング体５を螺合させる作業は、専用の工具を作成して行うと効率良く行うことができる。 The operation of screwing the first ring member 5 to the second ring member 6 can be efficiently performed by creating a dedicated tool.
給油管本体２の側方には、図１及び図２に示すように、一端が燃料タンク３に接続される一方、他端が給油管本体２の拡管部２０に接続されたブリーザチューブ７が並設され、該ブリーザチューブ７は、給油管本体２を用いて燃料を燃料タンク３に給油する際において、気化した燃料を含む空気を燃料タンク３から給油管本体２のノズルガイド４側に抜くようになっている。 As shown in FIGS. 1 and 2, a breather tube 7 having one end connected to the fuel tank 3 and the other end connected to the expanded portion 20 of the oil supply pipe body 2 is provided on the side of the oil supply pipe body 2. When the fuel is supplied to the fuel tank 3 using the fuel supply pipe main body 2, the breather tube 7 removes air containing vaporized fuel from the fuel tank 3 toward the nozzle guide 4 side of the fuel supply pipe main body 2. It has become.
ブリーザチューブ７は、一端が燃料タンク３に接続された細長い円筒状をなす樹脂製のチューブ本体８と、該チューブ本体８の他端側に接続され、該チューブ本体８を給油管本体２に接続する樹脂製のジョイント部材９とを備えている。 The breather tube 7 has an elongated cylindrical resin body 8 having one end connected to the fuel tank 3, and is connected to the other end of the tube body 8, and connects the tube body 8 to the oil supply pipe body 2. And a resin-made joint member 9.
該ジョイント部材９は、側面視で略Ｌ字状をなしており、給油管本体２に沿って延びる第１ジョイント部９ａと、該第１ジョイント部９ａから給油管本体２に向かって延びる第２ジョイント部９ｂとを有している。 The joint member 9 has a substantially L shape in a side view, and has a first joint portion 9a extending along the oil supply pipe main body 2 and a second joint portion extending from the first joint portion 9a toward the oil supply pipe main body 2. And a joint 9b.
第１ジョイント部９ａは、環状に延びる複数の山が並設されたタケノコ状の接続面部９ｃを有し、該接続面部９ｃにＯリング１２を外嵌合させるとともに、第１ジョイント部９ａをチューブ本体８の他端側内方に圧入することにより、気密性が保たれた状態でチューブ本体８とジョイント部材９とが接続されるようになっている。 The first joint portion 9a has a bamboo-shaped connection surface portion 9c in which a plurality of annularly extending ridges are juxtaposed. The O-ring 12 is externally fitted to the connection surface portion 9c, and the first joint portion 9a is connected to a tube. By press-fitting the inside of the other end of the main body 8, the tube main body 8 and the joint member 9 are connected while airtightness is maintained.
第２ジョイント部９ｂの中途部には、外側方に突出する環状の鍔部９ｄが形成され、第２ジョイント部９ｂを給油管本体２の取付孔２３ａに圧入するとともに、鍔部９ｄと膨出部２３とを溶着させることによってジョイント部材９と給油管本体２とが接続されている。 An annular flange 9d protruding outward is formed in the middle of the second joint 9b. The second joint 9b is press-fitted into the mounting hole 23a of the oil supply pipe main body 2 and bulges with the flange 9d. The joint member 9 and the oil supply pipe main body 2 are connected by welding the portion 23.
次に、実施形態１に係る燃料給油管１の組み立てについて詳述する。 Next, the assembly of the fuel supply pipe 1 according to the first embodiment will be described in detail.
まず、図５に示すように、ブロー成形により形成した環状張出部２１ａの無い第１円筒体２１と、第２リング体６とを用意する。 First, as shown in FIG. 5, a first cylindrical body 21 having no annular overhang 21a formed by blow molding and a second ring body 6 are prepared.
次に、図６に示すように、第２リング体６を第１円筒体２１に外嵌合させた後、当該第１円筒体２１の一方の開口周縁に第２円筒体２２を熱板溶着か、或いは、振動溶着により接合する。このとき、第１円筒体２１の溶けた部分を外側方に押し広げて環状張出部２１ａを形成する。 Next, as shown in FIG. 6, after the second ring body 6 is externally fitted to the first cylindrical body 21, the second cylindrical body 22 is hot-plate welded to one opening peripheral edge of the first cylindrical body 21. Alternatively, they are joined by vibration welding. At this time, the melted portion of the first cylindrical body 21 is pushed outward to form an annular overhang 21a.
次いで、第２円筒体２２の各環状凹条溝２２ａにシール部材１０をそれぞれ嵌合させた後、図７に示すように、ノズルガイド４の一端開口から当該ノズルガイド４の内方に第２円筒体２２を挿入する。すると、各シール部材１０によってノズルガイド４の内周面と第２円筒体２２の外周面との間がシールされるとともに、ノズルガイド４のフランジ部４ｂに環状張出部２１ａが当接して給油管本体２に対するノズルガイド４の位置が決まる。 Next, after the sealing member 10 is fitted into each of the annular concave grooves 22a of the second cylindrical body 22, the second end is opened from one end opening of the nozzle guide 4 to the inside of the nozzle guide 4 as shown in FIG. The cylindrical body 22 is inserted. Then, the seal between the inner peripheral surface of the nozzle guide 4 and the outer peripheral surface of the second cylindrical body 22 is sealed by each seal member 10, and the annular protrusion 21a abuts on the flange portion 4b of the nozzle guide 4 to refuel. The position of the nozzle guide 4 with respect to the tube body 2 is determined.
しかる後、離間した状態の第１分割体５ａと第２分割体５ｂとをノズルガイド４の外周面を囲うように互いに突き合わせて第１リング体５を組み立てた後、第１リング体５と第２リング体６とを互いに接近させて第１リング体５の雄螺子部５ｃを第２リング体６の雌螺子部６ａに螺合させる。すると、第２リング体６の環状突出部６ｂと第１リング体５との間にフランジ部４ｂと環状張出部２１ａとが重なり合った状態で挟み込まれて固定され、燃料給油管１が完成する。 Thereafter, the first ring body 5 is assembled by abutting the separated first divided body 5a and the second divided body 5b so as to surround the outer peripheral surface of the nozzle guide 4, and then the first ring body 5 and the second The male screw portion 5c of the first ring member 5 is screwed into the female screw portion 6a of the second ring member 6 by bringing the two ring members 6 closer to each other. Then, the flange portion 4b and the annular projecting portion 21a are sandwiched and fixed between the annular projecting portion 6b of the second ring member 6 and the first ring member 5 in an overlapping state, and the fuel supply pipe 1 is completed. .
以上より、本発明の実施形態１によると、ノズルガイド４を給油管本体２に組み付ける際、給油管本体２の他端側をノズルガイド４の内方にその一端開口から挿入すると、ノズルガイド４のフランジ部４ｂに給油管本体２の環状張出部２１ａが当接してフランジ部４ｂと環状張出部２１ａとが重なり合うので、給油管本体２をノズルガイド４の内方にそれ以上挿入できなくなる。したがって、給油管本体２のノズルガイド４に対する筒中心線方向の位置が正確に決まるので、給油管本体２に対してノズルガイド４を正確な位置に組み付けた状態にすることができる。 As described above, according to the first embodiment of the present invention, when assembling the nozzle guide 4 to the oil supply pipe main body 2, when the other end of the oil supply pipe main body 2 is inserted into the nozzle guide 4 from one end opening thereof, the nozzle guide 4 The annular protrusion 21a of the oil supply pipe main body 2 comes into contact with the flange 4b of the oil supply pipe 2 and the flange 4b and the annular protrusion 21a overlap, so that the oil supply pipe main body 2 cannot be inserted further into the nozzle guide 4. . Accordingly, the position of the fuel supply pipe main body 2 in the direction of the cylinder center line with respect to the nozzle guide 4 is accurately determined, so that the nozzle guide 4 can be assembled at an accurate position with respect to the fuel supply pipe main body 2.
また、第１リング体５と第２リング体６とを互いに螺合させる作業によりノズルガイド４を給油管本体２から外れないようにすることができ、特許文献１の如き圧入作業を行う必要が無いので、燃料給油管１の組立作業が簡単である。 In addition, the work of screwing the first ring body 5 and the second ring body 6 together can prevent the nozzle guide 4 from being detached from the oil supply pipe main body 2, and it is necessary to perform a press-fitting work as in Patent Document 1. Since there is no fuel supply pipe, the assembling work of the fuel supply pipe 1 is simple.
さらに、給油管本体２が樹脂体で、且つ、ノズルガイド４が金属体であっても、本発明の構造を適用することにより、給油管本体２にノズルガイド４を圧入させることなく給油管本体２とノズルガイド４とを組み立てることができる。 Further, even if the oil supply pipe main body 2 is a resin body and the nozzle guide 4 is a metal body, the structure of the present invention is applied, so that the oil supply pipe main body 2 is not press-fitted into the oil supply pipe main body 2. 2 and the nozzle guide 4 can be assembled.
また、樹脂材よりも比較的柔らかいリング状のゴム体を用いて給油管本体２の外周面とノズルガイド４の内周面との間の隙間が埋まるように給油管本体２とノズルガイド４とを組み立てているので、給油管本体２とノズルガイド４との間の気密性が高い燃料給油管１にすることができる。 Further, the oil supply pipe main body 2 and the nozzle guide 4 are formed using a ring-shaped rubber body relatively softer than the resin material so that the gap between the outer peripheral surface of the oil supply pipe main body 2 and the inner peripheral surface of the nozzle guide 4 is filled. Is assembled, the fuel supply pipe 1 having high airtightness between the supply pipe main body 2 and the nozzle guide 4 can be obtained.
また、第１リング体５は、第１分割体５ａ及び第２分割体５ｂからなる分割体であるので、第１リング体５をノズルガイド４に組み付ける際、第１リング体５の内方にノズルガイド４を挿入するという作業を行う必要が無くなる。したがって、例えば、ノズルガイド４に設けられたフランジ部４ｂが組付作業の邪魔になるといったことを回避することができる。 Further, since the first ring body 5 is a divided body composed of the first divided body 5a and the second divided body 5b, when the first ring body 5 is assembled to the nozzle guide 4, the first ring body 5 is located inside the first ring body 5. There is no need to perform the operation of inserting the nozzle guide 4. Therefore, for example, it can be avoided that the flange portion 4b provided on the nozzle guide 4 hinders the assembling operation.
《発明の実施形態２》
図８は、本発明の実施形態２に係る燃料給油管１を示す。この実施形態２では、給油管本体２における第２円筒体２２周りの構造が実施形態１と異なるだけでその他は実施形態１と同じであるため、以下、実施形態１と異なる部分のみを詳細に説明する。
<< Embodiment 2 of the invention >>
FIG. 8 shows a fuel supply pipe 1 according to a second embodiment of the present invention. In the second embodiment, since the structure around the second cylindrical body 22 in the oil supply pipe main body 2 is different from that of the first embodiment, the other parts are the same as those of the first embodiment. explain.
実施形態２の第２円筒体２２は、高密度ポリエチレンで形成され、その外周面には、第１円筒体２１側より当該第１円筒体２１の反対側の外径を小さくする環状段差部２２ｂが設けられている。 The second cylindrical body 22 of the second embodiment is formed of high-density polyethylene, and has an outer peripheral surface formed with an annular step portion 22 b for reducing the outer diameter of the first cylindrical body 21 on the side opposite to the first cylindrical body 21. Is provided.
すなわち、環状段差部２２ｂは、給油管本体２の一端側より他端側の外径を小さくするように設けられている。 That is, the annular step portion 22 b is provided so that the outer diameter of the oil supply pipe main body 2 on the other end side is smaller than that on the one end side.
第２円筒体２２の開口周縁と環状段差部２２ｂとの間には、ナイロン材で形成された第１リング状部材２４と第２リング状部材２５とが順に外嵌合しており、第２リング状部材２５は、第２円筒体２２の開口周縁を覆うように断面略Ｌ字状をなしている。 A first ring-shaped member 24 and a second ring-shaped member 25 made of a nylon material are sequentially fitted between the peripheral edge of the opening of the second cylindrical body 22 and the annular step 22b. The ring-shaped member 25 has a substantially L-shaped cross section so as to cover the periphery of the opening of the second cylindrical body 22.
そして、実施形態２の各環状凹条溝２２ａは、環状段差部２２ｂと第１リング状部材２４との間と第２円筒体２２の外周面とで囲われる部分と、第１リング状部材２４と第２リング状部材との間と第２円筒体２２の外周面とで囲われる部分とにより構成されている。 Each of the annular concave grooves 22a of the second embodiment includes a portion surrounded by the space between the annular step 22b and the first ring-shaped member 24 and an outer peripheral surface of the second cylindrical body 22, and the first ring-shaped member 24. And a portion surrounded by the second ring-shaped member and the outer peripheral surface of the second cylindrical body 22.
尚、実施形態２に係る燃料給油管１の組立作業は、実施形態１に係る燃料給油管１の組立作業と同じであるので、詳細な説明は省略する。 Note that the assembling work of the fuel filler pipe 1 according to the second embodiment is the same as the assembling work of the fuel filler pipe 1 according to the first embodiment, and thus a detailed description is omitted.
以上より、本発明の実施形態２によると、給油管本体２の他端側に第１リング状部材２４及び第２リング状部材２５を嵌め込む作業だけでシール部材１０を嵌合させるための環状凹条溝２２ａが給油管本体２の外周面に形成されるので、給油管本体２の成形時に環状凹条溝２２ａを一体に成形する必要が無くなり、給油管本体２を成形する成形型を複雑な形状にする必要が無くなってコストを抑えることができる。 As described above, according to the second embodiment of the present invention, the annular shape for fitting the seal member 10 only by fitting the first ring-shaped member 24 and the second ring-shaped member 25 to the other end side of the oil supply pipe main body 2. Since the concave groove 22a is formed on the outer peripheral surface of the oil supply pipe main body 2, it is not necessary to integrally form the annular groove 22a at the time of forming the oil supply pipe main body 2, and the molding die for forming the oil supply pipe main body 2 is complicated. This eliminates the need for a simple shape and can reduce costs.
尚、本発明の実施形態２では、２つのリング状部材を第２円筒体２２に外嵌合して２つの環状凹条溝２２ａを形成しているが、１つのリング状部材を第２円筒体２２に外嵌合して１つの環状凹条溝２２ａを形成してもよいし、３つ以上のリング状部材を第２円筒体２２に外嵌合して複数の環状凹条溝２２ａを形成してもよい。 In the second embodiment of the present invention, two ring-shaped members are externally fitted to the second cylindrical body 22 to form two annular concave grooves 22a. One annular concave groove 22a may be formed by externally fitting to the body 22, or a plurality of annular concave grooves 22a may be formed by externally fitting three or more ring-shaped members to the second cylindrical body 22. It may be formed.
《発明の実施形態３》
図９は、本発明の実施形態３に係る燃料給油管１を示す。この実施形態３では、給油管本体２とノズルガイド４との間のシール構造が実施形態１と異なるだけでその他は実施形態１と同じであるため、以下、実施形態１と異なる部分のみを詳細に説明する。
<< Embodiment 3 of the invention >>
FIG. 9 shows a fuel filler pipe 1 according to Embodiment 3 of the present invention. In the third embodiment, the sealing structure between the oil supply pipe main body 2 and the nozzle guide 4 is the same as that of the first embodiment except that the sealing structure is different from that of the first embodiment. Will be described.
実施形態３における給油管本体２の他端側には、略短い円筒状をなすシール部材１３（環状シール部）が外嵌合している。 A substantially short cylindrical seal member 13 (annular seal portion) is externally fitted to the other end side of the oil supply pipe main body 2 in the third embodiment.
該シール部材１３は、例えばフッ素ゴム材で一体成形されたゴム体であり、給油管本体２の他端開口周縁と環状張出部２１ａとの間に外嵌合する筒状部１３ａを備えている。 The seal member 13 is a rubber body integrally formed of, for example, a fluororubber material, and includes a cylindrical portion 13a which is fitted between the peripheral edge of the other end opening of the oil supply pipe main body 2 and the annular projecting portion 21a. I have.
該筒状部１３ａの環状張出部２１ａ側開口周縁には、外側方に突出するとともに筒状部１３ａの周方向に延びる環状壁部１３ｂが設けられ、該環状壁部１３ｂは、シール部材１３を給油管本体２の他端側に外嵌合させた際、環状張出部２１ａに沿うようになっている。 An annular wall portion 13b is provided on the periphery of the opening of the cylindrical portion 13a on the side of the annular projecting portion 21a and protrudes outward and extends in the circumferential direction of the cylindrical portion 13a. Is externally fitted to the other end of the oil supply pipe main body 2 so as to follow the annular projecting portion 21a.
また、環状壁部１３ｂは、ノズルガイド４の一端開口から当該ノズルガイド４の内方に給油管本体２の他端側を挿入した際、フランジ部４ｂと環状張出部２１ａとに挟み込まれるようになっている。 Also, when the other end side of the oil supply pipe main body 2 is inserted into the nozzle guide 4 from the one end opening of the nozzle guide 4 through the one end opening of the nozzle guide 4, the annular wall portion 13b is sandwiched between the flange portion 4b and the annular protrusion 21a. It has become.
筒状部１３ａの外周面には、外測方に膨出するとともに筒状部の周方向に延びる一対の環状膨出部１３ｃが形成され、各環状膨出部１３ｃは、ノズルガイド４の一端開口から当該ノズルガイド４の内方に給油管本体２の他端側を挿入した際、ノズルガイド４の内周面と筒状部１３ａとの間をシールするようになっている。 A pair of annular bulges 13c is formed on the outer peripheral surface of the cylindrical portion 13a and bulges outwardly and extends in the circumferential direction of the cylindrical portion. When the other end of the oil supply pipe main body 2 is inserted into the nozzle guide 4 from the opening, the space between the inner peripheral surface of the nozzle guide 4 and the cylindrical portion 13a is sealed.
筒状部１３ａにおける環状張出部２１ａの反対側開口周縁には、内側方に突出するとともに筒状部１３ａの周方向に延びる環状のエッジカバー部１３ｄが設けられ、該エッジカバー部１３ｄは、シール部材１３が給油管本体２の他端側に外嵌合している状態において給油管本体２の他端開口周縁を覆うようになっている。 An annular edge cover portion 13d that protrudes inward and extends in the circumferential direction of the cylindrical portion 13a is provided on a peripheral edge of the opening of the cylindrical portion 13a opposite to the annular projecting portion 21a, and the edge cover portion 13d is When the seal member 13 is externally fitted to the other end side of the oil supply pipe main body 2, the peripheral edge of the other end opening of the oil supply pipe main body 2 is covered.
次に、実施形態３に係る燃料給油管１の組み立てについて詳述する。 Next, the assembly of the fuel supply pipe 1 according to the third embodiment will be described in detail.
まず、ブロー成形により形成した環状張出部２１ａの無い第１円筒体２１と、第２リング体６とを用意する。 First, the first cylindrical body 21 having no annular overhang 21a formed by blow molding and the second ring body 6 are prepared.
次に、第２リング体６を第１円筒体２１に外嵌合させた後、当該第１円筒体２１の一方の開口周縁に第２円筒体２２を熱板溶着か、或いは、振動溶着により接合する。このとき、第１円筒体２１の溶けた部分を外側方に押し広げて環状張出部２１ａを形成する。 Next, after the second ring body 6 is externally fitted to the first cylindrical body 21, the second cylindrical body 22 is hot-plate welded to one opening peripheral edge of the first cylindrical body 21 by hot plate welding or vibration welding. Join. At this time, the melted portion of the first cylindrical body 21 is pushed outward to form an annular overhang 21a.
次いで、第２円筒体２２にシール部材１３を外嵌合させた後、ノズルガイド４の一端開口から当該ノズルガイド４の内方に第２円筒体２２を挿入する。すると、各環状膨出部１３ｃがノズルガイド４の内周面と第２円筒体２２の外周面との間をシールするとともに、ノズルガイド４のフランジ部４ｂに環状壁部１３ｂを介して環状張出部２１ａが当接してノズルガイド４に対する第２円筒体２２の位置が決まる。 Next, after the sealing member 13 is externally fitted to the second cylindrical body 22, the second cylindrical body 22 is inserted into the nozzle guide 4 from one end opening of the nozzle guide 4. Then, each annular bulging portion 13c seals a gap between the inner peripheral surface of the nozzle guide 4 and the outer peripheral surface of the second cylindrical body 22, and the annular tension is attached to the flange portion 4b of the nozzle guide 4 via the annular wall portion 13b. The position of the second cylindrical body 22 with respect to the nozzle guide 4 is determined by the contact of the protrusion 21a.
しかる後、離間した状態の第１分割体５ａと第２分割体５ｂとをノズルガイド４の外周面を囲うように互いに突き合わせて第１リング体５を組み立てた後、第１リング体５と第２リング体６とを互いに接近させて第１リング体５の雄螺子部５ｃを第２リング体６の雌螺子部６ａに螺合させる。すると、図９に示すように、第２リング体６の環状突出部６ｂと第１リング体５との間にフランジ部４ｂ、環状壁部１３ｂ及び環状張出部２１ａが順に重なり合った状態で挟み込まれて固定され、燃料給油管１が完成する。 Thereafter, the first ring body 5 is assembled by abutting the separated first divided body 5a and the second divided body 5b so as to surround the outer peripheral surface of the nozzle guide 4, and then the first ring body 5 and the second The male screw portion 5c of the first ring member 5 is screwed into the female screw portion 6a of the second ring member 6 by bringing the two ring members 6 closer to each other. Then, as shown in FIG. 9, the flange portion 4b, the annular wall portion 13b, and the annular projecting portion 21a are sandwiched between the annular projecting portion 6b of the second ring member 6 and the first ring member 5 in a state where they are sequentially overlapped. And the fuel supply pipe 1 is completed.
以上より、本発明の実施形態３によると、燃料給油管１を組み立てる際、シール部材１３の環状壁部１３ｂがノズルガイド４のフランジ部４ｂと給油管本体２の環状張出部２１ａとの間に位置するので、第１リング体５及び第２リング体６でフランジ部４ｂと環状張出部２１ａとを挟み込むと、環状壁部１３ｂがフランジ部４ｂと環状張出部２１ａとの間に固定されるようになる。したがって、シール部材１３が給油管本体２から不意に外れてしまうのを確実に防ぐことができ、ノズルガイド４と給油管本体２との間の気密性を確実に確保した状態に維持することができる。 As described above, according to the third embodiment of the present invention, when assembling the fuel filler pipe 1, the annular wall 13 b of the seal member 13 is located between the flange 4 b of the nozzle guide 4 and the annular protrusion 21 a of the fuel filler main body 2. When the first ring body 5 and the second ring body 6 sandwich the flange portion 4b and the annular overhang portion 21a, the annular wall portion 13b is fixed between the flange portion 4b and the annular overhang portion 21a. Will be done. Therefore, it is possible to reliably prevent the seal member 13 from being accidentally detached from the oil supply pipe main body 2, and to maintain a state in which the airtightness between the nozzle guide 4 and the oil supply pipe main body 2 is reliably ensured. it can.
尚、本発明の実施形態１〜３では、ノズルガイド４は、鉄板から形成された金属体であるが、ステンレス鋼材等の金属材で形成してもよい。 In the first to third embodiments of the present invention, the nozzle guide 4 is a metal body formed of an iron plate, but may be formed of a metal material such as a stainless steel material.
また、本発明の実施形態１〜３では、第１リング体５の外周面に雄螺子部５ｃが形成される一方、第２リング体６の内周面に雄螺子部５ｃが螺合する雌螺子部６ａと環状突出部６ｂとが形成されているが、第２リング体６の外周面に雄螺子部５ｃが形成される一方、第１リング体５の内周面に雌螺子部６ａと環状突出部６ｂとが形成される構成であってもよい。 In the first to third embodiments of the present invention, the male screw portion 5 c is formed on the outer peripheral surface of the first ring member 5, while the male screw portion 5 c is screwed on the inner peripheral surface of the second ring member 6. The screw portion 6a and the annular projecting portion 6b are formed. The male screw portion 5c is formed on the outer peripheral surface of the second ring member 6, while the female screw portion 6a is formed on the inner peripheral surface of the first ring member 5. A configuration in which the annular protrusion 6b is formed may be employed.
また、本発明の実施形態１〜３では、第１リング体５が分割構造になっているが、第２リング体６の外周面に雄螺子部５ｃが形成されている場合には、第２リング体６が分割構造になっていてもよい。 In the first to third embodiments of the present invention, the first ring body 5 has a divided structure. However, when the male screw portion 5 c is formed on the outer peripheral surface of the second ring body 6, the second ring body 5 has the second structure. The ring body 6 may have a divided structure.
また、本発明の実施形態１〜３では、第２リング体６の環状突出部６ｂが環状をなしているが、環状であることが必須ではなく、第１リング体５との間にフランジ部４ｂと環状張出部２１ａとを挟み込める形状であればよい。 In the first to third embodiments of the present invention, the annular projecting portion 6b of the second ring body 6 has an annular shape. Any shape may be used as long as it can sandwich the 4b and the annular overhang 21a.
また、本発明の実施形態１〜３では、第１リング体５及び第２リング体６をアルミニウム合金材から形成しているが、その他の金属材で形成してもよいし、ポリブチレンテレフタレート樹脂材やポリアセタール樹脂材等の樹脂材で形成してもよい。 Further, in the first to third embodiments of the present invention, the first ring body 5 and the second ring body 6 are formed of an aluminum alloy material, but may be formed of another metal material or a polybutylene terephthalate resin. It may be formed of a resin material such as a material or a polyacetal resin material.
本発明は、車両の燃料タンクにガソリン等の燃料を給油する際の通路となる燃料給油管に適している。 INDUSTRIAL APPLICABILITY The present invention is suitable for a fuel supply pipe serving as a passage when fuel such as gasoline is supplied to a fuel tank of a vehicle.
１ 燃料給油管
２ 給油管本体
３ 燃料タンク
４ ノズルガイド
４ｂ フランジ部
５ 第１リング体
５ｃ 雄螺子部
６ 第２リング体
６ａ 雌螺子部
６ｂ 環状突出部
１０ シール部材（環状シール部）
１１ 給油キャップ
１３ シール部材（環状シール部）
１３ａ 筒状部
１３ｂ 環状壁部
１３ｃ 環状膨出部
２１ａ 環状張出部
２２ａ 環状凹条溝
２２ｂ 環状段差部
２４ 第１リング状部材
２５ 第２リング状部材
Ｃ１ 筒中心線
Ｇ 給油ガン
Ｇ１ ノズル
DESCRIPTION OF SYMBOLS 1 Fuel supply pipe 2 Fuel supply pipe main body 3 Fuel tank 4 Nozzle guide 4b Flange part 5 First ring body 5c Male screw part 6 Second ring body 6a Female screw part 6b Annular protrusion 10 Seal member (annular seal part)
11 Oil filler cap 13 Seal member (annular seal part)
13a cylindrical portion 13b annular wall portion 13c annular bulging portion 21a annular bulging portion 22a annular concave groove 22b annular stepped portion 24 first ring member 25 second ring member C1 cylinder center line G refueling gun G1 nozzle
Claims (5)
一端側が上記給油管本体の他端開口に組み付けられる一方、他端開口に給油キャップが着脱可能に取り付けられ、当該給油キャップが取り外された状態で、給油ガンのノズルを上記給油管本体の内側に案内する円筒状の金属製ノズルガイドとを備えた燃料給油管であって、
上記ノズルガイドにその筒中心線周りに回転可能に外嵌合された第１リング体と、
上記給油管本体にその筒中心線周りに回転可能に外嵌合された第２リング体とを備え、
上記ノズルガイドには、当該ノズルガイドの一端開口周縁から径方向外側に張り出す環状のフランジ部が設けられ、
上記給油管本体の他端側外周面には、当該給油管本体の他端側を上記ノズルガイドの一端開口から当該ノズルガイドの内方に挿入した状態で上記ノズルガイドの内周面との間をシールする環状シール部と、径方向外側に張り出すとともに上記給油管本体の周方向に延びる環状をなし、上記給油管本体の他端側を上記ノズルガイドの一端開口から当該ノズルガイドの内方に挿入した状態で上記フランジ部に対応する環状張出部とが設けられ、
上記第１及び第２リング体のいずれか一方の外周面には、雄螺子部が形成され、
上記第１及び第２リング体のいずれか他方の内周面には、上記雄螺子部が螺合する雌螺子部と、内側方に突出するとともに、上記雄螺子部を上記雌螺子部に螺合させることにより、上記第１及び第２リング体のいずれか一方との間に上記フランジ部と上記環状張出部とを重ねた状態で挟み込んで固定する突出部とが設けられていることを特徴とする燃料給油管。 A cylindrical resin filler pipe main body having one end connected to the fuel tank,
While one end side is assembled to the other end opening of the oil supply pipe main body, an oil supply cap is detachably attached to the other end opening, and in a state where the oil supply cap is removed, the nozzle of the oil supply gun is inserted inside the oil supply pipe main body. A fuel filler pipe having a cylindrical metal nozzle guide for guiding,
A first ring body rotatably fitted to the nozzle guide so as to be rotatable around the center line of the cylinder;
A second ring body rotatably fitted around the center line of the cylinder to the oil supply pipe main body,
The nozzle guide is provided with an annular flange portion that protrudes radially outward from the peripheral edge of one end opening of the nozzle guide,
On the other end outer peripheral surface of the oil supply pipe main body, the other end side of the oil supply pipe main body is inserted into the nozzle guide from one end opening of the nozzle guide to the inner peripheral surface of the nozzle guide. An annular seal portion for sealing the oil supply pipe, and forming an annular shape extending outward in the radial direction and extending in the circumferential direction of the oil supply pipe main body. An annular overhanging portion corresponding to the flange portion is provided in a state of being inserted into,
A male screw portion is formed on one of the outer peripheral surfaces of the first and second ring bodies,
On the other inner peripheral surface of the first and second ring bodies, a female screw portion to which the male screw portion is screwed, and a male screw portion projecting inward and screwing the male screw portion to the female screw portion. By being combined, a protrusion is provided between any one of the first and second ring bodies to sandwich and fix the flange portion and the annular projecting portion in an overlapping state. Characteristic fuel filler pipe.
上記給油管本体の他端側外周面には、当該給油管本体の周方向に延びる環状凹条溝が設けられ、
上記環状シール部は、上記環状凹条溝に嵌合するリング状のゴム体であることを特徴とする燃料給油管。 The fuel filler pipe according to claim 1,
An annular groove extending in the circumferential direction of the oil supply pipe main body is provided on the outer peripheral surface on the other end side of the oil supply pipe main body,
The fuel filler pipe, wherein the annular seal portion is a ring-shaped rubber body fitted into the annular groove.
上記給油管本体の他端側外周面には、当該給油管本体の一端側より他端側の外径を小さくする環状段差部が設けられ、
上記給油管本体の他端開口周縁と上記環状段差部との間には、１つ以上のリング状部材が外嵌合しており、
上記環状凹条溝は、上記環状段差部と上記リング状部材との間と上記給油管本体の外周面とで囲われる部分か、或いは、隣り合う２つの上記リング状部材の間と上記給油管本体の外周面とで囲われる部分により構成されていることを特徴とする燃料給油管。 The fuel supply pipe according to claim 2,
On the outer peripheral surface on the other end side of the oil supply pipe main body, there is provided an annular step portion for reducing the outer diameter of the other end side from the one end side of the oil supply pipe main body,
One or more ring-shaped members are externally fitted between the peripheral edge of the other end opening of the oil supply pipe main body and the annular step portion,
The annular concave groove is a portion enclosed between the annular step and the ring-shaped member and the outer peripheral surface of the oil supply pipe main body, or between two adjacent ring-shaped members and the oil supply pipe. A fuel filler pipe comprising a portion surrounded by an outer peripheral surface of a main body.
上記環状シール部は、ゴム材からなる一体成形品であり、上記給油管本体の他端開口周縁と上記環状張出部との間に外嵌合される筒状部と、該筒状部の上記環状張出部側開口周縁に設けられ、当該環状張出部に沿うように外側方に突出するとともに上記筒状部の周方向に延びる環状壁部と、上記筒状部の外周面に形成され、外側方に膨出するとともに上記筒状部の周方向に延びて上記ノズルガイドの内周面と上記筒状部との間をシールする環状膨出部とを備え、
上記環状壁部は、上記ノズルガイドの一端開口から当該ノズルガイドの内方に上記給油管本体の他端側を挿入した際、上記フランジ部と上記環状張出部とに挟み込まれるようになっていることを特徴とすることを特徴とする燃料給油管。 The fuel filler pipe according to claim 1,
The annular seal portion is an integrally molded product made of a rubber material, and a tubular portion externally fitted between the peripheral edge of the other end opening of the oil supply pipe main body and the annular projecting portion; An annular wall portion provided on the periphery of the annular overhang portion side opening, protruding outward along the annular overhang portion, and extending in the circumferential direction of the tubular portion; and formed on the outer peripheral surface of the tubular portion. An annular swelling portion that swells outward and extends in the circumferential direction of the tubular portion to seal between the inner circumferential surface of the nozzle guide and the tubular portion,
The annular wall portion is sandwiched between the flange portion and the annular protrusion when the other end of the oil supply pipe main body is inserted into the nozzle guide from one end opening of the nozzle guide. A fuel filler pipe characterized in that:
上記第１及び第２リング体のいずれか一方は、径方向に２分割された半割形状の第１分割体及び第２分割体を互いに突き合わせて組み立てた組立体であることを特徴とする燃料給油管。 The fuel filler pipe according to any one of claims 1 to 4,
Either one of the first and second ring bodies is an assembly obtained by assembling a half-divided first and second half bodies divided into two in the radial direction and abutting each other. Refueling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018129691A JP7134471B2 (en) | 2018-07-09 | 2018-07-09 | Vehicle fuel supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018129691A JP7134471B2 (en) | 2018-07-09 | 2018-07-09 | Vehicle fuel supply pipe |
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| Publication Number | Publication Date |
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| JP2018129691A Active JP7134471B2 (en) | 2018-07-09 | 2018-07-09 | Vehicle fuel supply pipe |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118521A (en) * | 1984-07-05 | 1986-01-27 | Araki Kanagata Seisakusho:Kk | Structure of pouring-in pipe of gasoline tank for automobile |
| JPH0264430U (en) * | 1988-11-07 | 1990-05-15 | ||
| JP2007107618A (en) * | 2005-10-13 | 2007-04-26 | Sekisui Chem Co Ltd | Pipe fitting and its protective cap |
| WO2014109367A1 (en) * | 2013-01-11 | 2014-07-17 | 旭化成メディカル株式会社 | Ferrule joint, and sealing mechanism for liquid passage nozzle in membrane module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6118521B2 (en) | 2012-08-21 | 2017-04-19 | 出光興産株式会社 | Electrode layer including sulfide-based solid electrolyte, electrolyte layer including sulfide-based solid electrolyte, and all-solid-state battery using the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118521A (en) * | 1984-07-05 | 1986-01-27 | Araki Kanagata Seisakusho:Kk | Structure of pouring-in pipe of gasoline tank for automobile |
| JPH0264430U (en) * | 1988-11-07 | 1990-05-15 | ||
| JP2007107618A (en) * | 2005-10-13 | 2007-04-26 | Sekisui Chem Co Ltd | Pipe fitting and its protective cap |
| WO2014109367A1 (en) * | 2013-01-11 | 2014-07-17 | 旭化成メディカル株式会社 | Ferrule joint, and sealing mechanism for liquid passage nozzle in membrane module |
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| JP7134471B2 (en) | 2022-09-12 |
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