JP2015209857A

JP2015209857A - Liner, its manufacturing method and high-pressure gas tank

Info

Publication number: JP2015209857A
Application number: JP2014089830A
Authority: JP
Inventors: 上田　直樹; Naoki Ueda; 直樹上田
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 2014-04-24
Filing date: 2014-04-24
Publication date: 2015-11-24
Anticipated expiration: 2034-04-24
Also published as: JP6241361B2

Abstract

PROBLEM TO BE SOLVED: To further reliably secure gas seal performance between a mouth piece and a liner main body.SOLUTION: A liner comprises a mouth piece 16 which is attached to a recessed pedestal part 14r on an apex of a dome part at a liner main body 11 which forms a cylindrical hollow vessel by expanding the dome part 14 at a cylinder part. In a mouth piece attached state, the liner forms an opened recess 15 between a recess internal peripheral wall 14rs of the recessed pedestal part 14r at the liner main body 11 and an external peripheral edge of a mouth piece flow 16f, and can drive remaining air in the opened recess 15 to the outside of the liner by a pedestal-side communication passage 14rh. After that, FIPG is made intrude into the opened recess 15, and a liquid gasket attachment part 18 is formed.

Description

本発明は、ライナーとその製造方法および高圧ガスタンクに関する。 The present invention relates to a liner, a manufacturing method thereof, and a high-pressure gas tank.

ライナーは、高圧ガスタンクのコア材とされ、カーボン繊維強化プラスチックや、ガラス繊維強化プラスチック（以下、これらを総称して、繊維強化樹脂層と呼ぶ）で被覆される。また、ライナーは、ガスの給排に関与する口金と、該口金が装着される口金台座部を有するライナー本体と、を備える。通常、ライナー本体は、軽量化の観点から、ガスバリア性を有する樹脂製の中空容器とされ、口金は、金属成形品とされている。このため、口金の装着に際しては、口金・ライナー本体間のガスシール性を、口金とライナー本体との間の間隙に熱可塑性エラストマーを介在させることで確保する手法がされている（例えば、特許文献１）。 The liner is a core material of the high-pressure gas tank and is covered with carbon fiber reinforced plastic or glass fiber reinforced plastic (hereinafter collectively referred to as a fiber reinforced resin layer). Further, the liner includes a base involved in gas supply / discharge and a liner main body having a base base portion to which the base is mounted. Usually, from the viewpoint of weight reduction, the liner body is a resin-made hollow container having gas barrier properties, and the die is a metal molded product. For this reason, when mounting the base, there is a technique for ensuring gas sealing between the base and the liner body by interposing a thermoplastic elastomer in the gap between the base and the liner body (for example, Patent Documents). 1).

特開平６−１３７４３３号公報JP-A-6-137433

上記の特許文献の手法は、口金とライナー本体との間の間隙に熱可塑性エラストマーを射出してその間隙全域において熱可塑性エラストマーが存在することを前提としている。ところが、口金とライナー本体との間の間隙は口金表面とライナー本体の表面とで閉じられた閉領域であるので、間隙における残存エアーにより熱可塑性エラストマーが行き渡らないことも想定され、シール性確保の上からその改善が求められるに至った。この他、ライナーにおける口金の簡便なガスシール性の確保や、コスト低下も要請されている。 The method of the above-mentioned patent literature is based on the premise that a thermoplastic elastomer is injected into the gap between the die and the liner body, and the thermoplastic elastomer exists throughout the gap. However, since the gap between the die and the liner body is a closed region that is closed by the surface of the die and the surface of the liner body, it is assumed that the thermoplastic elastomer is not spread by the residual air in the gap, ensuring a sealing property. The improvement came to be demanded from the top. In addition, there is a demand for securing a simple gas sealing property of the die in the liner and reducing the cost.

上記した課題の少なくとも一部を達成するために、本発明は、以下の形態として実施することができる。 In order to achieve at least a part of the problems described above, the present invention can be implemented as the following forms.

（１）本発明の一形態によれば、高圧ガスタンクのライナーが提供される。このライナーは、ガスの給排に関与する口金と、筒状の中空容器をなし、前記口金が有する口金フランジと接合して前記口金が装着される口金台座部を有するライナー本体と、前記口金台座部と前記口金フランジとの間に形成されてライナー外部に開口した開口凹所を、ライナー外部への開口箇所から隔たった箇所からライナー外部に連通する連通路とを備え、前記開口凹所に液状ガスケットを配設して備える。上記形態のライナーでは、開口凹所に残存するエアーを連通路を経てライナー外部に導出できることから、開口凹所のほぼ全域において液状ガスケットを配設できるので、シール性確保の信頼性が高まる。そして、上記形態のライナーでは、エポキシ樹脂等の熱硬化性樹脂を含浸した繊維束の巻回がフィラメントワインディング方法（以下、ＦＷ法）にてなされても、この熱硬化性樹脂の浸入を、開口凹所に配設した液状ガスケットにより防止できる。加えて、上記形態のライナーでは、液状ガスケットの配設箇所を開口凹所としていることから、開口凹所の開口側からの液状ガスケットの押圧塗布等を行えば足り、射出成形手法を必要としないので、低コスト化も可能となる。 (1) According to one form of this invention, the liner of a high pressure gas tank is provided. The liner includes a base involved in gas supply / discharge, a cylindrical hollow container, a liner main body having a base pedestal portion to which the base is attached by joining to a base flange of the base, and the base pedestal An opening recess that is formed between the portion and the base flange and opens to the outside of the liner, and a communication passage that communicates with the outside of the liner from a location separated from the opening location to the outside of the liner. A gasket is provided. In the liner of the above form, since air remaining in the opening recess can be led out to the outside of the liner through the communication path, the liquid gasket can be disposed in almost the entire area of the opening recess, so that the reliability of securing the sealing property is increased. And in the liner of the said form, even if the winding of the fiber bundle impregnated with thermosetting resins, such as an epoxy resin, is made | formed by the filament winding method (henceforth, FW method), infiltration of this thermosetting resin is opened. This can be prevented by a liquid gasket disposed in the recess. In addition, in the liner of the above embodiment, since the liquid gasket is disposed at the opening recess, it is sufficient to apply the liquid gasket from the opening side of the opening recess and the injection molding method is not required. Therefore, the cost can be reduced.

この場合、前記開口凹所は、前記口金フランジの外周縁の側ほど広く開口したくさび状凹所としてもよい。こうすれば、開口凹所の開口側からの液状ガスケットの塗布等により、開口凹所からの残存エアーの導出並びにライナー外部への開口箇所から隔たった開口凹所箇所の側への液状ガスケットの配設、或いはライナー外部への開口箇所から隔たった箇所を含む開口凹所全域への液状ガスケットの配設を容易に達成できる。この結果、口金とライナー本体とのガスシール性もより高まる。 In this case, the opening recess may be a wedge-shaped recess that opens wider toward the outer peripheral edge of the base flange. In this way, by applying a liquid gasket from the opening side of the opening recess, the remaining air is led out from the opening recess and the liquid gasket is arranged on the side of the opening recess that is separated from the opening outside the liner. The arrangement of the liquid gasket can be easily achieved over the entire opening recess including the part spaced from the opening part to the outside of the liner. As a result, the gas sealability between the base and the liner body is further enhanced.

（２）上記の形態のライナーにおいて、前記連通路は、前記ライナー本体および／または前記口金フランジにおいて、前記開口凹所をライナー外部に連通するようにしてもよい。こうすれば、ライナー本体の連通路と口金フランジの連通路のいずれか、或いは、この両者の連通路にて、開口凹所の残存エアーをライナー外部に導出できる。 (2) In the liner of the above aspect, the communication passage may communicate the opening recess with the outside of the liner in the liner main body and / or the base flange. If it carries out like this, the residual air of an opening recess can be derived | led-out outside a liner in the communicating path of a liner main body, the communicating path of a nozzle | cap | die flange, or both of these communicating paths.

（３）上記した形態のライナーにおいて、前記液状ガスケットは、ライナー外部への開口箇所から隔たった箇所の側で前記連通路の内部にも配設されているようにできる。こうすれば、連通路にもエアーを残さないので、残存エアーによる弊害を抑制できる。 (3) In the liner of the above-described form, the liquid gasket may be disposed inside the communication path on the side separated from the opening to the outside of the liner. In this way, no air is left in the communication path, so that it is possible to suppress harmful effects caused by the remaining air.

（４）上記したいずれかの形態のライナーにおいて、前記口金は、前記口金フランジが前記口金台座部と接合する接合部位から前記口金を貫通して口金外部に到る口金連通孔を備える。こうすれば、口金フランジと口金台座部との接合部位からも口金連通孔を経て開口凹所の残存エアーを導出できる。 (4) In the liner of any one of the forms described above, the base includes a base communication hole that penetrates the base and reaches the outside of the base from a joint portion where the base flange joins the base base. If it carries out like this, the residual air of an opening recess can be derived | led-out via a nozzle | cap | die communication hole also from the joining site | part of a nozzle | cap | die flange and a nozzle | cap | die base part.

（５）本発明の他の形態によれば、ライナーの製造方法が提供される。このライナーの製造方法は、ガスの給排に関与する口金を装着したライナーの製造方法であって、筒状の中空容器をなし、口金装着用の口金台座部を有するライナー本体を準備する工程と、口金フランジを有する前記口金であって、前記口金フランジが前記口金台座部に接合することで前記ライナー本体に装着され、前記口金台座部と前記口金フランジとの間にライナー外部に開口した開口凹所を形成する前記口金を準備する工程と、前記口金フランジを前記口金台座部に接合して前記口金を前記ライナー本体に装着する工程と、前記開口凹所に液状ガスケットを塗布して硬化させる工程とを備える。そして、前記口金を準備する工程では、前記口金が装着されることで形成される前記開口凹所をライナー外部への開口箇所から隔たった箇所からライナー外部に連通する連通路を、前記口金フランジに形成する。上記形態のライナーの製造方法によれば、開口凹所への液状ガスケットの塗布により、開口凹所に残存するエアーを口金フランジの連通路を経て口金外部に導出できることから、開口凹所のほぼ全域における液状ガスケットの配設によってシール性確保がなされたライナーを容易に製造できる。 (5) According to the other form of this invention, the manufacturing method of a liner is provided. This liner manufacturing method is a method for manufacturing a liner equipped with a base involved in gas supply and discharge, comprising a cylindrical hollow container and preparing a liner body having a base for mounting the base. The base having a base flange, wherein the base flange is attached to the liner body by joining to the base pedestal portion, and an opening recess opened to the outside of the liner between the base pedestal portion and the base flange. A step of preparing the base for forming a place, a step of joining the base flange to the base pedestal and attaching the base to the liner body, and a step of applying a liquid gasket to the opening recess and curing the step With. Then, in the step of preparing the base, a communication path that communicates the opening recess formed by mounting the base to the outside of the liner from a position separated from the opening to the outside of the liner is formed in the base flange. Form. According to the liner manufacturing method of the above aspect, by applying the liquid gasket to the opening recess, the air remaining in the opening recess can be led out to the outside of the mouth through the communication passage of the mouth flange, so that almost the entire area of the opening recess is obtained. A liner having a sealing property secured by the arrangement of the liquid gasket can be easily manufactured.

（６）上記した形態のライナーの製造方法において、前記ライナー本体を準備する工程では、前記口金が装着されることで形成される前記開口凹所をライナー外部への開口箇所から隔たった箇所からライナー外部に連通する連通路を、前記口金台座部からライナー本体外表に掛けて形成するようにできる。こうすれば、ライナー本体の連通路を経ても開口凹所から残存エアーを導出できるので、より確実なガスシール性確保が可能なライナーを容易に製造できる。 (6) In the liner manufacturing method according to the above aspect, in the step of preparing the liner main body, the opening recess formed by mounting the base is a liner from a location separated from the opening location to the outside of the liner. A communication passage communicating with the outside can be formed by hanging from the base pedestal to the outer surface of the liner body. In this way, since the remaining air can be led out from the opening recess even through the communication passage of the liner body, a liner capable of ensuring a more reliable gas sealing property can be easily manufactured.

（７）本発明のまた別の形態によれば、ライナーの製造方法が提供される。このライナーの製造方法は、ガスの給排に関与する口金を装着したライナーの製造方法であって、筒状の中空容器をなし、口金装着用の口金台座部を有するライナー本体を準備する工程と、口金フランジを有する前記口金であって、前記口金フランジが前記口金台座部に接合することで前記ライナー本体に装着され、前記口金台座部と前記口金フランジとの間にライナー外部に開口した開口凹所を形成する前記口金を準備する工程と、前記口金フランジを前記口金台座部に接合して前記口金を前記ライナー本体に装着する工程と、前記開口凹所に液状ガスケットを塗布して硬化させる工程とを備える。そして、前記ライナー本体を準備する工程では、前記口金が装着されることで形成される前記開口凹所をライナー外部への開口箇所から隔たった箇所からライナー外部に連通する連通路を、前記口金台座部からライナー本体外表に掛けて形成する。この形態のライナーの製造方法によれば、開口凹所への液状ガスケットの塗布により、開口凹所に残存するエアーをライナー本体の連通路を経て口金外部に導出できることから、開口凹所のほぼ全域における液状ガスケットの配設によってシール性確保がなされたライナーを容易に製造できる。 (7) According to still another aspect of the present invention, a method for producing a liner is provided. This liner manufacturing method is a method for manufacturing a liner equipped with a base involved in gas supply and discharge, comprising a cylindrical hollow container and preparing a liner body having a base for mounting the base. The base having a base flange, wherein the base flange is attached to the liner body by joining to the base pedestal portion, and an opening recess opened to the outside of the liner between the base pedestal portion and the base flange. A step of preparing the base for forming a place, a step of joining the base flange to the base pedestal and attaching the base to the liner body, and a step of applying a liquid gasket to the opening recess and curing the step With. And in the step of preparing the liner body, the base pedestal is provided with a communication passage that communicates the opening recess formed by mounting the base to the outside of the liner from a position separated from the opening to the outside of the liner. It is hung from the surface to the outer surface of the liner body. According to the method for manufacturing a liner of this embodiment, by applying a liquid gasket to the opening recess, air remaining in the opening recess can be led out to the outside of the base through the communication passage of the liner body, so that almost the entire area of the opening recess can be obtained. A liner having a sealing property secured by the arrangement of the liquid gasket can be easily manufactured.

（８）本発明のまた別の形態によれば、高圧ガスタンクが提供される。この高圧ガスタンクは、上記のいずれかの形態の記載のライナーと、該ライナーの外表に繊維束を繰り返し巻回して形成された繊維層とを備える。この形態の高圧ガスタンクによれば、ライナー本体と口金との間のガスシール性を確保した高圧ガスタンクを容易に提供できる。 (8) According to still another aspect of the present invention, a high-pressure gas tank is provided. The high-pressure gas tank includes the liner described in any one of the above forms and a fiber layer formed by repeatedly winding a fiber bundle around the outer surface of the liner. According to the high-pressure gas tank of this aspect, a high-pressure gas tank that ensures gas sealing between the liner main body and the base can be easily provided.

なお、本発明は、種々の形態で実現することが可能であり、例えば、円筒状のライナーの外表に繊維束を巻回してライナーに繊維層を形成する高圧ガスタンクの製造方法等の態様で実現することができる。 The present invention can be realized in various forms. For example, the invention can be realized in a method such as a manufacturing method of a high-pressure gas tank in which a fiber bundle is wound around the outer surface of a cylindrical liner to form a fiber layer on the liner. can do.

本発明の実施形態としての高圧ガスタンク１００の構成をその外観と断面図にて示す説明図である。It is explanatory drawing which shows the structure of the high pressure gas tank 100 as embodiment of this invention with the external appearance and sectional drawing. ライナー１０の構成を半断面図と正面図で示す説明図である。It is explanatory drawing which shows the structure of the liner 10 with a semi-sectional view and a front view. ライナー１０における口金１６の装着端側の半断面を拡大して示す説明図である。FIG. 3 is an explanatory view showing, in an enlarged manner, a half section on the mounting end side of the base 16 in the liner 10. 高圧ガスタンク１００の製造工程の前半を示すフローチャートである。3 is a flowchart showing the first half of the manufacturing process of the high-pressure gas tank 100. 高圧ガスタンク１００の製造工程の後半を示すフローチャートである。4 is a flowchart showing the latter half of the manufacturing process of the high-pressure gas tank 100. ライナー製造工程におけるライナー１０の準備の様子を示す説明図である。It is explanatory drawing which shows the mode of the preparation of the liner 10 in a liner manufacturing process. ライナー製造工程における口金１６の準備の様子を示す説明図である。It is explanatory drawing which shows the mode of preparation of the nozzle | cap | die 16 in a liner manufacturing process. ＦＩＰＧの塗布の様子を模式的に示す説明図である。It is explanatory drawing which shows typically the mode of application | coating of FIPG. ＦＩＰＧの塗布直後の様子を図８の９−９線で切断して概略的に示す説明図である。FIG. 9 is an explanatory diagram schematically showing a state immediately after application of FIPG by cutting along line 9-9 in FIG. 8. 塗布したＦＩＰＧを押圧した際の様子を図８の１０−１０線で切断して概略的に示す説明図である。It is explanatory drawing which cut | disconnects the state at the time of pressing the apply | coated FIPG by 10-10 line | wire of FIG. 8, and is shown roughly. 第２実施形態のライナー１０ＡにおけるＦＩＰＧの塗布初期の様子を示す説明図である。It is explanatory drawing which shows the mode of the application | coating initial stage of FIPG in the liner 10A of 2nd Embodiment. 第２実施形態のライナー１０ＡにおけるＦＩＰＧの押圧塗布を経た液状ガスケット装着部１８の形成の様子を示す説明図である。It is explanatory drawing which shows the mode of formation of the liquid gasket mounting part 18 which passed through the press application of FIPG in the liner 10A of 2nd Embodiment. 第３実施形態のライナー１０Ｂにおける台座側連通路１４ｒｈの形成の様子を示す説明図である。It is explanatory drawing which shows the mode of formation of the base side communication path 14rh in liner 10B of 3rd Embodiment. 第４実施形態のライナー１０Ｃにおける口金１６の装着端側の半断面を拡大して示す説明図である。It is explanatory drawing which expands and shows the half cross section by the side of the mounting | wearing end of the nozzle | cap | die 16 in liner 10C of 4th Embodiment. 第５実施形態のライナー１０Ｄにおける口金１６の装着端側の半断面を拡大して示す説明図である。It is explanatory drawing which expands and shows the half cross section by the side of the mounting | wearing end of the nozzle | cap | die 16 in liner 10D of 5th Embodiment.

以下、本発明の実施の形態について、図面に基づき説明する。図１は本発明の実施形態としての高圧ガスタンク１００の構成をその外観と断面図にて示す説明図、図２はライナー１０の構成を半断面図と正面図で示す説明図、図３はライナー１０における口金１６の装着端側の半断面を拡大して示す説明図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the configuration of a high-pressure gas tank 100 as an embodiment of the present invention in its appearance and sectional view, FIG. 2 is an explanatory view showing the configuration of a liner 10 in a half sectional view and a front view, and FIG. 10 is an explanatory diagram showing an enlarged half section on the mounting end side of the base 16 in FIG.

図１に示すように、高圧ガスタンク１００は、ライナー１０を繊維強化樹脂層１０２で被覆して構成され、口金１６を両端から突出させている。繊維強化樹脂層１０２は、熱硬化性樹脂を含浸した繊維強化樹脂層をＦＷ法によりライナー外周に巻回させることで形成され、後述するように、繊維巻回の際には、フープ巻きによる繊維巻回と低角度・高角度のヘリカル巻きによる繊維巻回とが使い分けられる。繊維強化樹脂層１０２の形成には、熱硬化性樹脂としてエポキシ樹脂を用いることが一般的であるが、ポリエステル樹脂やポリアミド樹脂等の熱硬化性樹脂を用いることができる。また、ＦＷ法によりライナー外周に巻回させる補強用の繊維（スライバー繊維）としては、ガラス繊維やカーボン繊維、アラミド繊維等が用いられる他、複数種類（例えば、ガラス繊維とカーボン繊維）のＦＷ法による巻回を順次行うことで、繊維強化樹脂層１０２を異なる繊維からなる樹脂層を積層させて形成することもできる。 As shown in FIG. 1, the high-pressure gas tank 100 is configured by covering a liner 10 with a fiber reinforced resin layer 102, and a base 16 is projected from both ends. The fiber reinforced resin layer 102 is formed by winding a fiber reinforced resin layer impregnated with a thermosetting resin around the outer periphery of the liner by the FW method. As will be described later, when the fiber is wound, fibers by hoop winding are used. Winding and fiber winding by low-angle / high-angle helical winding can be used properly. For the formation of the fiber reinforced resin layer 102, an epoxy resin is generally used as the thermosetting resin, but a thermosetting resin such as a polyester resin or a polyamide resin can be used. Further, as a reinforcing fiber (sliver fiber) wound around the liner outer periphery by the FW method, glass fiber, carbon fiber, aramid fiber, or the like is used, and a plurality of types (for example, glass fiber and carbon fiber) FW method. By sequentially performing the winding process, the fiber reinforced resin layer 102 can be formed by laminating resin layers made of different fibers.

図２に示すように、ライナー１０は、筒状の中空容器をなすタンク容器たるライナー本体１１に、ガスの給排に関与する口金１６を装着して備える。ライナー本体１１は、タンク長手方向の中央で２分割された一対のライナーパーツの接合品である。２分割のライナーパーツは、それぞれナイロン系樹脂等の適宜な樹脂にて型成型され、その型成型品のライナーパーツを接合してその接合箇所をレーザー融着することで、ライナー本体１１が形成される。このパーツ接合を経て、ライナー本体１１は、円筒状のシリンダー部１２の両側に球面形状のドーム部１４を備えることになる。ライナー１０は、ライナー本体１１のドーム部１４の頂上箇所、即ちライナー軸ＡＸに沿った長手方向端部に、口金１６の装着用の陥没台座部１４ｒを備え、その中央に貫通孔１４ｈを有する。この貫通孔１４ｈは、ライナー軸ＡＸと一致して形成され、口金１６の位置決め孔として機能する。 As shown in FIG. 2, the liner 10 includes a liner main body 11 that is a tank container that forms a cylindrical hollow container, and a base 16 that is involved in gas supply and discharge. The liner body 11 is a joined product of a pair of liner parts divided into two at the center in the tank longitudinal direction. Each of the two-part liner parts is molded with an appropriate resin such as a nylon resin, and the liner body 11 is formed by joining the liner parts of the molded product and laser-welding the joints. The Through this part joining, the liner body 11 is provided with spherical dome parts 14 on both sides of the cylindrical cylinder part 12. The liner 10 is provided with a depressed pedestal portion 14r for mounting a base 16 at a top portion of the dome portion 14 of the liner body 11, that is, a longitudinal end portion along the liner axis AX, and has a through hole 14h in the center thereof. The through hole 14 h is formed in alignment with the liner axis AX and functions as a positioning hole for the base 16.

この他、ライナー１０は、図３に示すように、陥没台座部１４ｒを取り囲む凹所内周壁１４ｒｓに台座側連通路１４ｒｈを有する。この台座側連通路１４ｒｈは、陥没台座部１４ｒの底面の側において凹所内周壁１４ｒｓを貫通し、後述の開口凹所１５を、陥没台座部１４ｒの底面の側、即ちライナー外部への開口箇所から隔たった箇所でライナー外部と連通する。 In addition, as illustrated in FIG. 3, the liner 10 includes a pedestal side communication path 14 rh on a recess inner peripheral wall 14 rs surrounding the depressed pedestal part 14 r. The pedestal side communication path 14r passes through the recess inner peripheral wall 14rs on the bottom surface side of the depressed pedestal portion 14r, and opens the opening recess 15 described later from the bottom surface side of the depressed pedestal portion 14r, that is, from the opening position to the outside of the liner. It communicates with the outside of the liner at a remote location.

口金１６は、金属製とされ、陥没台座部１４ｒに入り込む口金フランジ１６ｆと、当該フランジからドーム部頂上側に突出した口金本体１６ｂと、口金フランジ１６ｆからライナー中央に突出した凸部１６ｔと、バルブ接続孔１６ｈを備える。凸部１６ｔは、ドーム部１４の貫通孔１４ｈに嵌合され、貫通孔１４ｈと協働して口金１６をライナー１０に対して位置決めする。バルブ接続孔１６ｈは、口金１６の中央を貫通し、その開口側に配管接続用の高圧シール仕様のテーパネジ部を有する。上記した両タンク口金は、繊維強化樹脂層１０２等の形成のための繊維巻回の際の回転軸装着にも用いられ、一方の口金１６は、バルブ接続孔１６ｈをタンク内部で閉塞した有底孔としている。 The base 16 is made of metal, a base flange 16f that enters the recessed pedestal portion 14r, a base body 16b that protrudes from the flange to the top of the dome, a convex portion 16t that protrudes from the base flange 16f to the center of the liner, a valve A connection hole 16h is provided. The convex portion 16 t is fitted into the through hole 14 h of the dome portion 14, and positions the base 16 with respect to the liner 10 in cooperation with the through hole 14 h. The valve connection hole 16h passes through the center of the base 16 and has a taper screw portion of a high-pressure seal specification for pipe connection on the opening side. Both of the above-described tank bases are also used for mounting a rotating shaft during fiber winding for forming the fiber reinforced resin layer 102 and the like, and one base 16 has a bottom with a valve connection hole 16h closed inside the tank. It is a hole.

口金フランジ１６ｆは、その外周縁１６ｆｅをフランジ厚みが外側に行くほど減ずるように弧状に傾斜させており、陥没台座部１４ｒの凹所内周壁１４ｒｓとの間に、開口凹所１５を形成する。開口凹所１５は、口金フランジ１６ｆの外周縁１６ｆｅの側ほど広く開口した凹所とされ、陥没台座部１４ｒの底面まで口金１６の軸方向に沿って延びたくさび形状の凹所とされている。そして、この開口凹所１５には液状ガスケットであるＦＩＰＧ（Formed In Place Gasket）が塗布され、ライナー１０は、ＦＩＰＧの塗布領域を液状ガスケット装着部１８の配設領域とする。液状ガスケット装着部１８は、開口凹所１５の内部に入り込んでいるほか、開口凹所１５から陥没台座部１４ｒの上縁側のライナー外周壁、詳しくはドーム部１４の外周壁と口金フランジ１６ｆの外表中央の側に掛けて薄層状に延びて、当該部位をドーム側装着部１８ｄとフランジ側装着部１８ｆとする。この場合、ドーム部１４の凹所内周壁１４ｒｓは、図２に示すように、ライナー１０の軸回りに円弧状に形成され、口金フランジ１６ｆにあっても、その外周縁１６ｆｅを凹所内周壁１４ｒｓの円弧形状に合致して形成されている。このため、開口凹所１５は、この円弧軌跡に沿ってライナー軸ＡＸを取り囲むことになり、液状ガスケット装着部１８の開口凹所１５に配設された部位にあっても円弧軌跡に沿ってライナー軸をＡＸ取り囲む。その一方、ドーム側装着部１８ｄとフランジ側装着部１８ｆとは、円弧軌跡の開口凹所１５を含んで帯状にライナー軸ＡＸを取り囲み、ドーム部１４および口金１６の縁部のライナー表面から盛り上がる。こうした液状ガスケット装着部１８の形状的な点については、後述する。 The base flange 16f is inclined in an arc shape so that the outer peripheral edge 16fe decreases as the flange thickness goes outward, and an open recess 15 is formed between the recess inner peripheral wall 14rs of the depressed pedestal portion 14r. The opening recess 15 is a recess that opens wider toward the outer peripheral edge 16fe side of the base flange 16f, and is a wedge-shaped recess that extends along the axial direction of the base 16 to the bottom surface of the recessed base portion 14r. . Then, FIPG (Formed In Place Gasket), which is a liquid gasket, is applied to the opening recess 15, and the liner 10 uses the FIPG application area as an arrangement area of the liquid gasket mounting portion 18. The liquid gasket mounting portion 18 enters the inside of the opening recess 15, and also the outer peripheral wall of the liner on the upper edge side of the recessed pedestal portion 14r from the opening recess 15, more specifically, the outer surface of the outer peripheral wall of the dome portion 14 and the base flange 16f. It extends to the center side and extends in a thin layer, and these portions are referred to as a dome side mounting portion 18d and a flange side mounting portion 18f. In this case, the recess inner peripheral wall 14rs of the dome portion 14 is formed in an arc shape around the axis of the liner 10, as shown in FIG. 2, and the outer peripheral edge 16fe of the recess inner peripheral wall 14rs is also formed on the base flange 16f. It is formed to match the arc shape. For this reason, the opening recess 15 surrounds the liner axis AX along the arc locus, and the liner along the arc locus is provided even in the portion disposed in the opening recess 15 of the liquid gasket mounting portion 18. Surround the axis with AX. On the other hand, the dome side mounting portion 18d and the flange side mounting portion 18f surround the liner axis AX in a band shape including the opening recess 15 of the arc locus, and rise from the liner surface at the edge of the dome portion 14 and the base 16. The shape of the liquid gasket mounting portion 18 will be described later.

この他、口金１６は、図３に示すように、口金フランジ１６ｆと口金本体１６ｂに、口金連通孔１６ｈ１，１６ｈ２を有する。口金連通孔１６ｈ１は、陥没台座部１４ｒの底壁面に接合する口金フランジ１６ｆの底面から口金フランジ１６ｆを貫通してフランジ外表側の口金外部に到る。口金連通孔１６ｈ２は、陥没台座部１４ｒの底壁面に接合する口金フランジ１６ｆの底面から口金フランジ１６ｆを貫通してバルブ接続孔１６ｈに連通している。そして、バルブ接続孔１６ｈは、口金本体１６ｂの口金先端部１６ｃから凸部１６ｔの図における左端まで貫通していることから、この口金連通孔１６ｈ２は、バルブ接続孔１６ｈから口金先端部１６ｃを通じて口金外部に到る。ライナー１０の既述した台座側連通路１４ｒｈと口金１６の口金連通孔１６ｈ１は、図２に示すように、複数箇所に形成されている。口金連通孔１６ｈ２にあっても同様である。なお、口金連通孔１６ｈ２を、口金連通孔１６ｈ１と同様に口金フランジ１６ｆを貫通してフランジ外表側の口金外部に到るように形成してもよい。 In addition, as shown in FIG. 3, the base 16 has base communication holes 16h1, 16h2 in the base flange 16f and the base body 16b. The base communication hole 16h1 penetrates the base flange 16f from the bottom surface of the base flange 16f joined to the bottom wall surface of the depressed pedestal portion 14r to reach the outside of the base on the outer surface side of the flange. The base communication hole 16h2 communicates with the valve connection hole 16h through the base flange 16f from the bottom surface of the base flange 16f joined to the bottom wall surface of the depressed pedestal portion 14r. Since the valve connection hole 16h penetrates from the base end portion 16c of the base body 16b to the left end in the figure of the convex portion 16t, the base connection hole 16h2 is connected to the base through the base end portion 16c from the valve connection hole 16h. To the outside. The pedestal side communication path 14rh described above of the liner 10 and the base communication hole 16h1 of the base 16 are formed at a plurality of locations as shown in FIG. The same applies to the base communication hole 16h2. The base communication hole 16h2 may be formed so as to pass through the base flange 16f and reach the outside of the base on the outer surface side of the flange, similarly to the base communication hole 16h1.

上記した口金１６は、口金フランジ１６ｆが陥没台座部１４ｒに入り込むことで、口金フランジ１６ｆの外周縁１６ｆｅと陥没台座部１４ｒの凹所内周壁１４ｒｓの上縁との間に開口凹所１５を残した状態で、ライナー本体１１の陥没台座部１４ｒに装着される。 The above-described base 16 has the opening recess 15 left between the outer peripheral edge 16fe of the base flange 16f and the upper edge of the recess inner peripheral wall 14rs of the recess base 14r when the base flange 16f enters the recessed base 14r. In this state, the liner body 11 is mounted on the depressed pedestal portion 14r.

次に、上記した高圧ガスタンク１００とライナー１０の製造手法について説明する。図４は高圧ガスタンク１００の製造工程の前半を示すフローチャート、図５は高圧ガスタンク１００の製造工程の後半を示すフローチャート、図６はライナー製造工程におけるライナー１０の準備の様子を示す説明図、図７はライナー製造工程における口金１６の準備の様子を示す説明図である。 Next, a method for manufacturing the high-pressure gas tank 100 and the liner 10 will be described. 4 is a flowchart showing the first half of the manufacturing process of the high-pressure gas tank 100, FIG. 5 is a flowchart showing the second half of the manufacturing process of the high-pressure gas tank 100, FIG. 6 is an explanatory diagram showing the preparation of the liner 10 in the liner manufacturing process, FIG. These are explanatory drawings which show the mode of preparation of the nozzle | cap | die 16 in a liner manufacturing process.

図１に示す高圧ガスタンク１００の製造に際し、まず、ライナー１０を製造する(ステップＳ１００)。ライナー製造に当たっては、樹脂成形品である一対のライナーパーツと上記構成の口金１６とをそれぞれ準備した上で、口金１６をライナー本体１１を構成するライナーパーツのドーム部１４に装着する（ステップＳ１０２）。具体的には、ライナー本体１１を構成する２分割のライナーパーツの準備に当たり、図６に示すように、それぞれのドーム部１４の陥没台座部１４ｒに、台座側連通路１４ｒｈをドリル等で穿孔形成する。こうすることで、口金１６を陥没台座部１４ｒに装着して形成される開口凹所１５を少なくとも陥没台座部１４ｒの底面の側においてライナー本体外部と連通する台座側連通路１４ｒｈを有するライナーパーツが準備される。 When manufacturing the high-pressure gas tank 100 shown in FIG. 1, first, the liner 10 is manufactured (step S100). In manufacturing the liner, after preparing a pair of liner parts which are resin molded products and the base 16 having the above-described configuration, the base 16 is attached to the dome portion 14 of the liner part constituting the liner body 11 (step S102). . Specifically, in preparation of the two-part liner parts constituting the liner body 11, as shown in FIG. 6, the base side communication path 14r is drilled by a drill or the like in the recessed base part 14r of each dome part 14. To do. By doing so, a liner part having a base side communication path 14rh that communicates with the outside of the liner main body at least on the bottom side of the base part 14r through the opening recess 15 formed by attaching the base 16 to the base part 14r. Be prepared.

また、口金１６の準備に当たり、口金連通孔１６ｈ１，１６ｈ２を、図７に示すように、ドリル等で穿孔形成する。こうすることで、陥没台座部１４ｒに口金１６が装着されたときに陥没台座部１４ｒの底壁面に接合する部位から口金フランジ１６ｆを貫通して口金連通孔１６ｈ１，１６ｈ２を有する口金１６が準備される。こうした準備の後、口金１６の口金フランジ１６ｆを陥没台座部１４ｒに入り込ませた上で、ドーム部１４の貫通孔１４ｈに口金１６の凸部１６ｔを嵌合させる。これにより、口金１６は、ドーム部１４に位置決めされてドーム部１４に装着され、口金１６をドーム部頂上に有するライナーパーツが得られる。このライナーパーツにおいては、装着済みの口金１６における口金フランジ１６ｆの外周縁１６ｆｅと陥没台座部１４ｒの凹所内周壁１４ｒｓとの間に、開口凹所１５が既述した円弧軌跡で形成される。本実施形態のライナー１０では、図２に示すように、台座側連通路１４ｒｈおよび口金連通孔１６ｈ１，１６ｈ２を等ピッチでライナー軸ＡＸの軸回りに４箇所設けたが、１箇所、もしくはライナー軸ＡＸを中心に対角の２箇所としてもよい。また、台座側連通路１４ｒｈと口金連通孔１６ｈ１，１６ｈ２を、図２のように並べる必要はなく、例えば千鳥状に並んだり軸回りにずれて並ぶようにしてもよい。 In preparing the base 16, the base communication holes 16h1 and 16h2 are formed by drilling or the like as shown in FIG. By doing so, the base 16 having the base communication holes 16h1 and 16h2 penetrating the base flange 16f from the portion joined to the bottom wall surface of the base 14r when the base 16 is mounted on the base 14r is prepared. The After such preparation, after the base flange 16f of the base 16 is inserted into the depressed pedestal portion 14r, the convex portion 16t of the base 16 is fitted into the through hole 14h of the dome portion 14. Thus, the base 16 is positioned on the dome portion 14 and attached to the dome portion 14, and a liner part having the base 16 on the top of the dome portion is obtained. In this liner part, the opening recess 15 is formed by the arc trajectory described above between the outer peripheral edge 16fe of the base flange 16f of the mounted base 16 and the inner peripheral wall 14rs of the recessed base portion 14r. In the liner 10 of the present embodiment, as shown in FIG. 2, the pedestal side communication path 14rh and the base communication holes 16h1, 16h2 are provided at four positions around the axis of the liner axis AX at an equal pitch. It is good also as two diagonal places centering on AX. The pedestal side communication path 14rh and the base communication holes 16h1 and 16h2 do not have to be arranged as shown in FIG. 2, but may be arranged in a zigzag pattern or shifted around the axis.

次いで、口金１６を両端に装着済みの一対のライナーパーツを、シリンダー部１２の側で接合してその接合箇所をレーザー融着して組み付ける（ステップＳ１０４）。これにより、口金１６をライナー本体１１の両端に装着済みのライナー１０が得られる。なお、口金１６が未装着で台座側連通路１４ｒｈを備えないライナーパーツのレーザー溶着を経て得られたライナー本体１１において、図６に示すように、その陥没台座部１４ｒに台座側連通路１４ｒｈをドリル等で穿孔形成してもよい。こうすれば、口金１６が陥没台座部１４ｒに装着されて形成される開口凹所１５を少なくとも陥没台座部１４ｒの底面の側においてライナー本体外部と連通する台座側連通路１４ｒｈを有するライナー本体１１が準備される。そして、こうして準備したライナー本体１１に、口金連通孔１６ｈ１，１６ｈ２を有して準備済みの口金１６を装着して、ライナー１０を得るようにしてもよい。 Next, a pair of liner parts having the caps 16 attached to both ends are joined on the cylinder portion 12 side, and the joined portions are assembled by laser welding (step S104). As a result, the liner 10 having the cap 16 attached to both ends of the liner body 11 is obtained. In addition, in the liner main body 11 obtained through laser welding of a liner part that is not attached with the base 16 and does not include the pedestal side communication path 14rh, as shown in FIG. Perforation may be formed with a drill or the like. In this way, the liner main body 11 having the base-side communication path 14rh that communicates with the outside of the liner main body at least on the bottom side of the concave base 14r through the opening recess 15 formed by attaching the base 16 to the base 14r. Be prepared. Then, the liner 10 may be obtained by attaching the prepared base 16 having the base communication holes 16h1 and 16h2 to the liner main body 11 thus prepared.

こうしてライナー１０が得られると、当該ライナーの両端の側にて、それぞれの開口凹所１５にＦＩＰＧを押圧塗布し、乾燥養生を経てＦＩＰＧを硬化させ、液状ガスケット装着部１８を形成する（ステップＳ１０６）。図８はＦＩＰＧの塗布の様子を模式的に示す説明図、図９はＦＩＰＧの塗布直後の様子を図８の９−９線で切断して概略的に示す説明図、図１０は塗布したＦＩＰＧを押圧した際の様子を図８の１０−１０線で切断して概略的に示す説明図である。ＦＩＰＧの塗布に際しては、まず、口金１６を装着済みのライナー１０を軸回りに低速で定回転させる。その上で、ＦＩＰＧを加圧供給する図示しないパワーブースターから塗布ヘッド１１０にＦＩＰＧを送り出し、長方形状の吐出口を有する塗布ヘッド１１２から、ＦＩＰＧを帯状に塗布する。塗布された帯状のＦＩＰＧは、開口凹所１５の円弧軌跡に重なって円弧状に延び、ヘッド下流に設けた傾斜プレート１２０にてライナー表面の側に押圧される。これにより、ＦＩＰＧは、口金フランジ１６ｆの外周縁１６ｆｅに沿った開口凹所１５の内部に入り込むと共に、凹所両側に薄層状に広がるので、フランジ側装着部１８ｆとドーム側装着部１８ｄを有する液状ガスケット装着部１８が形成される。 When the liner 10 is thus obtained, FIPG is pressed and applied to the respective opening recesses 15 on both ends of the liner, and the FIPG is cured through dry curing to form the liquid gasket mounting portion 18 (step S106). ). FIG. 8 is an explanatory view schematically showing the state of application of FIPG, FIG. 9 is an explanatory view schematically showing the state immediately after the application of FIPG, taken along line 9-9 in FIG. 8, and FIG. 10 is the applied FIPG. FIG. 10 is an explanatory diagram schematically showing a state when the is pressed by cutting along line 10-10 in FIG. In applying FIPG, first, the liner 10 with the base 16 attached is rotated at a low speed around the axis. After that, FIPG is sent out from a power booster (not shown) that supplies FIPG under pressure to the coating head 110, and the FIPG is coated in a strip shape from the coating head 112 having a rectangular discharge port. The applied strip-like FIPG extends in an arc shape overlapping the arc locus of the opening recess 15 and is pressed toward the liner surface by an inclined plate 120 provided downstream of the head. Thereby, FIPG enters the inside of the opening recess 15 along the outer peripheral edge 16fe of the base flange 16f and spreads in a thin layer on both sides of the recess, so that the liquid having the flange side mounting portion 18f and the dome side mounting portion 18d. A gasket mounting portion 18 is formed.

この液状ガスケット装着部１８は、ライナー表面から盛り上がって形成され、本実施形態では、ドーム側装着部１８ｄとフランジ側装着部１８ｆの裾部盛り上がりを０．５ｍｍ程度とした。また、開口凹所１５へのＦＩＰＧの入り込みの際、開口凹所１５に残っている残存エアーは、開口凹所１５に入り込むＦＩＰＧに押されて、台座側連通路１４ｒｈからライナー外部に抜け出す。口金１６における口金フランジ１６ｆの底面とライナー本体１１における陥没台座部１４ｒの底面とは接合しているが、その接合は、通常、気密になされていない。よって、開口凹所１５の残存エアーは、台座側連通路１４ｒｈからは元より、口金フランジ１６ｆの底面と陥没台座部１４ｒの底面との間の隙間を経て口金連通孔１６ｈ１，１６ｈ２からも口金外部に抜け出す。よって、液状ガスケット装着部１８の開口凹所１５に入り込んだ部位にあっては、開口凹所１５をＦＩＰＧで隙なく埋め尽くすようにできるほか、台座側連通路１４ｒｈからのエアー抜け出しの範囲において、ＦＩＰＧは台座側連通路１４ｒｈを埋める。図１０に示す本実施形態のライナー１０では、台座側連通路１４ｒｈの全域においてＦＩＰＧを埋め尽くしている。この場合、台座側連通路１４ｒｈをＦＩＰＧで埋め尽くした上で、フランジ側装着部１８ｆと繋がるようにしてもよい。また、台座側連通路１４ｒｈの途中までをＦＩＰＧで埋めるようにしてもよい。 The liquid gasket mounting portion 18 is formed so as to swell from the liner surface. In this embodiment, the dome swell of the dome side mounting portion 18d and the flange side mounting portion 18f is about 0.5 mm. Further, when the FIPG enters the opening recess 15, the remaining air remaining in the opening recess 15 is pushed by the FIPG entering the opening recess 15 and escapes from the pedestal side communication path 14 rh to the outside of the liner. Although the bottom surface of the base flange 16f in the base 16 and the bottom surface of the recessed pedestal portion 14r in the liner body 11 are joined, the joining is usually not airtight. Therefore, the remaining air in the opening recess 15 starts from the base side communication passage 14rh and also passes through the gap between the bottom surface of the base flange 16f and the bottom surface of the recessed base portion 14r, and also from the base communication holes 16h1 and 16h2. Get out. Therefore, in the portion of the liquid gasket mounting portion 18 that has entered the opening recess 15, the opening recess 15 can be filled without gaps with FIPG, and in the range of air escape from the pedestal side communication path 14 rh, The FIPG fills the pedestal side communication path 14rh. In the liner 10 of this embodiment shown in FIG. 10, the FIPG is completely filled in the entire area of the pedestal side communication path 14rh. In this case, the pedestal side communication path 14rh may be filled with FIPG and then connected to the flange side mounting portion 18f. Further, the middle of the pedestal side communication path 14 rh may be filled with FIPG.

こうして形成済みの液状ガスケット装着部１８は、乾燥養生を経て硬化した状態となり、開口凹所１５の円弧軌跡に沿って、ライナー本体１１と口金１６、詳しくは、ドーム部１４と口金１６とをガスシールする。ここまでのライナー製造工程により、ライナー本体１１に口金１６を装着したライナー１０が製造され、このライナー１０は、円筒状のシリンダー部１２の両側に球面形状のドーム部１４を備え、各ドーム部に口金１６をガスシールして有することになる。 The liquid gasket mounting portion 18 thus formed is cured through dry curing, and the liner main body 11 and the base 16, specifically, the dome portion 14 and the base 16 are gasified along the arc locus of the opening recess 15. Seal. By the liner manufacturing process so far, the liner 10 with the base 16 attached to the liner body 11 is manufactured. The liner 10 includes spherical dome parts 14 on both sides of the cylindrical cylinder part 12, and each dome part has a dome part 14. The base 16 is gas-sealed.

こうしてライナー１０が得られると、図５に示すように、ライナー１０の外周に、ＦＷ法によって、繊維強化樹脂層１０２を形成する。具体的には、ステップＳ１００によって完成されたライナー１０を、その両端の口金１６を用いて回転させつつ、エポキシ樹脂を含浸させたカーボン繊維ＥＣＦを、ライナー１０の周囲に繰り返し巻回する（ステップＳ２０２）。このカーボン繊維ＥＣＦの巻回に際しては、ライナー１０におけるシリンダー部１２の外周範囲に亘るフープ巻きによる繊維巻回と、ドーム部１４の外周範囲に亘る低角度・高角度のヘリカル巻きによる繊維巻回とが使い分けられ、ライナー１０の回転速度や繊維送り出し速度についても調整される。その後、エポキシ樹脂を含浸させたカーボン繊維ＥＣＦを、ライナー１０の周囲に巻き付けたものを、加熱炉にて加熱して、エポキシ樹脂を硬化させる（ステップＳ２０４）。エポキシ樹脂が硬化すると、ＣＦＲＰ（Carbon Fiber Reinforced Plastics：カーボン繊維強化プラスチック）から成る繊維強化樹脂層１０２が形成され、高圧ガスタンク１００が完成する。なお、繊維強化樹脂層１０２を形成する場合に、加熱炉に代わり、高周波誘導加熱を誘起する誘導加熱コイルを用いて誘導加熱手法を用いることができる。この高周波誘導加熱では、速やかな熱硬化性樹脂の昇温を図ることができる。 When the liner 10 is obtained in this way, as shown in FIG. 5, the fiber reinforced resin layer 102 is formed on the outer periphery of the liner 10 by the FW method. Specifically, the carbon fiber ECF impregnated with epoxy resin is repeatedly wound around the liner 10 while rotating the liner 10 completed in step S100 using the caps 16 at both ends thereof (step S202). ). When winding the carbon fiber ECF, fiber winding by hoop winding over the outer peripheral range of the cylinder portion 12 in the liner 10 and fiber winding by low-angle / high-angle helical winding over the outer peripheral range of the dome portion 14 are performed. And the rotational speed of the liner 10 and the fiber feed speed are also adjusted. Thereafter, the carbon fiber ECF impregnated with the epoxy resin is wound around the liner 10 and heated in a heating furnace to cure the epoxy resin (step S204). When the epoxy resin is cured, a fiber reinforced resin layer 102 made of CFRP (Carbon Fiber Reinforced Plastics) is formed, and the high-pressure gas tank 100 is completed. In the case of forming the fiber reinforced resin layer 102, an induction heating method can be used by using an induction heating coil that induces high frequency induction heating instead of a heating furnace. With this high-frequency induction heating, the temperature of the thermosetting resin can be quickly raised.

以上説明したように、本実施形態のライナー１０では、その両端のドーム部１４の頂上に口金１６を装着するに当たり、ドーム部１４に陥没台座部１４ｒを設けて、この陥没台座部１４ｒに口金１６の口金フランジ１６ｆを入り込ませる。その上で、本実施形態のライナー１０では、陥没台座部１４ｒに入り込んだ口金フランジ１６ｆのフランジ外周縁と陥没台座部１４ｒの凹所内周壁１４ｒｓの上縁との間の開口凹所１５にＦＩＰＧを押圧塗布して液状ガスケット装着部１８を配設する（図８〜図１０参照）。そして、本実施形態のライナー１０は、開口凹所１５における残存エアーを、開口凹所１５へのＦＩＰＧの入り込みに伴って、ライナー本体１１の側の台座側連通路１４ｒｈおよび口金１６の側の口金連通孔１６ｈ１，１６ｈ２からライナー外部に導出する。これにより、本実施形態のライナー１０では、開口凹所１５のほぼ全域においてＦＩＰＧを入り込ませて液状ガスケット装着部１８を形成できる。この結果、本実施形態のライナー１０によれば、開口凹所１５のほぼ全域において形成した液状ガスケット装着部１８により、口金１６とライナー本体１１、詳しくは口金１６とドーム部１４とのガスシール性を、凹所内周壁１４ｒｓと口金フランジ１６ｆの外周縁１６ｆｅとの間において高い信頼性で確保できる。このことは、高い信頼性で口金１６を気密に装着できることを意味する。 As described above, in the liner 10 of the present embodiment, when the cap 16 is mounted on the top of the dome portion 14 at both ends, the recessed pedestal portion 14r is provided in the dome portion 14, and the cap 16 is provided on the depressed pedestal portion 14r. The base flange 16f is inserted. In addition, in the liner 10 of the present embodiment, FIPG is provided in the opening recess 15 between the outer peripheral edge of the cap flange 16f that has entered the depressed pedestal portion 14r and the upper edge of the inner peripheral wall 14rs of the depressed pedestal portion 14r. The liquid gasket mounting portion 18 is disposed by applying pressure (see FIGS. 8 to 10). The liner 10 according to the present embodiment allows the remaining air in the opening recess 15 to flow into the base side communication path 14 rh on the liner body 11 side and the base on the base 16 side as the FIPG enters the opening recess 15. It leads out of the liner from the communication holes 16h1, 16h2. Thereby, in the liner 10 of this embodiment, the liquid gasket mounting portion 18 can be formed by allowing FIPG to enter almost the entire area of the opening recess 15. As a result, according to the liner 10 of the present embodiment, the gas seal property between the base 16 and the liner main body 11, specifically, the base 16 and the dome portion 14, by the liquid gasket mounting portion 18 formed in almost the entire area of the opening recess 15. Can be ensured between the recess inner peripheral wall 14rs and the outer peripheral edge 16fe of the base flange 16f with high reliability. This means that the base 16 can be mounted airtight with high reliability.

本実施形態のライナー１０では、陥没台座部１４ｒに入り込んだ口金フランジ１６ｆを当該台座部にて支えるので、口金１６にライナー中央側に向けた力が加わっても、その力に抗することができる。よって、本実施形態のライナー１０によれば、口金１６にライナー中央側に向けた力が加わっても、口金１６の姿勢を不用意に変えないようにできる。口金１６にライナー中央側に向けた力が加わっても口金１６の姿勢変化が起きないと、ＦＷ法によるカーボン繊維ＥＣＦの巻回の際に、ライナー１０の回転軸ブレを抑制できるので、カーボン繊維ＥＣＦの巻回軌跡に乱れが起きないことから、繊維強化樹脂層１０２の品質向上の点からも有益である。 In the liner 10 of the present embodiment, the base flange 16f that has entered the depressed pedestal portion 14r is supported by the pedestal portion. Therefore, even if a force directed toward the center of the liner is applied to the base 16, the force can be resisted. . Therefore, according to the liner 10 of this embodiment, even if the force toward the center side of the liner is applied to the base 16, it is possible to prevent the posture of the base 16 from being carelessly changed. If the posture of the base 16 does not change even when a force toward the center of the liner is applied to the base 16, the rotation of the carbon fiber ECF by the FW method can be suppressed, so that the rotation of the liner 10 can be suppressed. Since no disturbance occurs in the winding trajectory of the ECF, it is also beneficial from the viewpoint of improving the quality of the fiber reinforced resin layer 102.

本実施形態のライナー１０では、開口凹所１５のほぼ全域にＦＩＰＧを入り込ませて液状ガスケット装着部１８を形成するので、ＦＷ法による繊維巻回の際に、開口凹所１５の内部、延いては、陥没台座部１４ｒの底面と口金フランジ１６ｆの底面との間に、エポキシ樹脂を浸入させないようにできる。加えて、本実施形態のライナー１０では、液状ガスケット装着部１８の形成のためのＦＩＰＧの塗布箇所を開口凹所１５として、この開口凹所１５にその開口側からＦＩＰＧを塗布すれば良いので、射出成形手法を必要としない。通常、射出成形は、製造設備規模の大型化やタンクスペックに応じた複数種の成形金型を必要であるので、本実施形態のライナー１０によれば、ＦＩＰＧの塗布が可能な小規模の設備で済み、製造コストの低減を図ることもできる。また、開口凹所１５の形状に合わせたシール部材を製造する必要がないので、簡便である。 In the liner 10 of this embodiment, since the FIPG is made to enter almost the entire area of the opening recess 15 to form the liquid gasket mounting portion 18, the inside of the opening recess 15 extends when the fiber is wound by the FW method. The epoxy resin can be prevented from entering between the bottom surface of the recessed pedestal portion 14r and the bottom surface of the base flange 16f. In addition, in the liner 10 of the present embodiment, the application location of FIPG for forming the liquid gasket mounting portion 18 is set as the opening recess 15, and the FIPG may be applied to the opening recess 15 from the opening side. Does not require injection molding techniques. In general, since injection molding requires an increase in the scale of manufacturing equipment and a plurality of types of molding dies according to tank specifications, according to the liner 10 of the present embodiment, a small-scale facility capable of applying FIPG. The manufacturing cost can be reduced. Moreover, since it is not necessary to manufacture the sealing member according to the shape of the opening recess 15, it is simple.

本実施形態のライナー１０では、口金フランジ１６ｆの外周縁１６ｆｅをフランジ厚みが外側に行くほど減ずるように弧状に傾斜させることで、開口凹所１５を外周縁１６ｆｅの側ほど広く開口したくさび状の凹所とした。このため、本実施形態のライナー１０によれば、開口凹所１５の開口側からＦＩＰＧを塗布するだけで、台座側連通路１４ｒｈや口金連通孔１６ｈ１，１６ｈ２からの開口凹所１５の残存エアーの導出を起こして、開口凹所１５の底部の側にまでＦＩＰＧを容易に行き渡らせて、凹所底部を含む凹所全域に、ＦＩＰＧを容易に配設できる。これにより、本実施形態のライナー１０によれば、液状ガスケット装着部１８による口金１６とライナー本体１１とのガスシール性をより高めることができる。 In the liner 10 of this embodiment, the outer peripheral edge 16fe of the base flange 16f is inclined in an arc shape so that the flange thickness decreases toward the outer side, so that the opening recess 15 opens wider toward the outer peripheral edge 16fe side. It was a recess. Therefore, according to the liner 10 of the present embodiment, the remaining air in the opening recess 15 from the pedestal side communication passage 14rh and the base communication holes 16h1 and 16h2 can be obtained only by applying FIPG from the opening side of the opening recess 15. The FIPG can be easily extended to the bottom side of the opening recess 15 by causing the derivation, and the FIPG can be easily disposed over the entire recess including the bottom of the recess. Thereby, according to the liner 10 of this embodiment, the gas-seal property of the nozzle | cap | die 16 and the liner main body 11 by the liquid gasket mounting part 18 can be improved more.

本実施形態のライナー１０では、外周縁１６ｆｅの上記した形状により、開口凹所１５を陥没台座部１４ｒの底面まで口金１６の軸方向に沿って延びて、くさび形状をなすようにした。このため、本実施形態のライナー１０によれば、開口凹所１５に入り込ませたＦＩＰＧの液状ガスケット装着部１８による口金１６とライナー本体１１とのガスシール範囲を、陥没台座部１４ｒの凹所内周壁１４ｒｓの上縁から底面までに亘る広い範囲とできるので、より高いガスシール性を発揮できる。 In the liner 10 of the present embodiment, the above-described shape of the outer peripheral edge 16fe extends the opening recess 15 to the bottom surface of the recessed pedestal portion 14r along the axial direction of the base 16 to form a wedge shape. For this reason, according to the liner 10 of the present embodiment, the gas seal range between the base 16 and the liner body 11 by the liquid gasket mounting portion 18 of FIPG that has entered the opening recess 15 is set to the inner peripheral wall of the recess of the depressed pedestal portion 14r. Since it can be a wide range extending from the upper edge to the bottom surface of 14 rs, higher gas sealability can be exhibited.

本実施形態のライナー１０では、ライナー本体１１の側の台座側連通路１４ｒｈの内部にもＦＩＰＧを行き渡らせて、この台座側連通路１４ｒｈにも残さない。よって、本実施形態のライナー１０によれば、台座側連通路１４ｒｈにエアーが損損していることで起き得る弊害、例えばエアーの膨張に伴う変形等の弊害を抑制できる。 In the liner 10 of the present embodiment, FIPG is also distributed inside the pedestal side communication path 14 rh on the liner body 11 side, and is not left in the pedestal side communication path 14 rh. Therefore, according to the liner 10 of the present embodiment, it is possible to suppress adverse effects that may occur due to the loss of air in the pedestal side communication path 14 rh, for example, such as deformation caused by the expansion of the air.

本実施形態のライナー１０では、液状ガスケット装着部１８を、開口凹所１５からライナー外周壁に掛けて薄層状に延びたドーム側装着部１８ｄと、口金フランジ１６ｆのフランジ外表中央の側に掛けて薄層状に延びたフランジ側装着部１８ｆとを備えるものとした。このため、本実施形態のライナー１０によれば、ドーム側装着部１８ｄとフランジ側装着部１８ｆとによっても、口金１６とライナー本体１１とのガスシール性を発揮できるので、ガスシール性を更に高めることができる。また、ＦＷ法にてカーボン繊維ＥＣＦの巻回がなされてライナー１０に繊維強化樹脂層１０２が形成されると、即ち、高圧ガスタンク１００の形態では、ドーム側装着部１８ｄとフランジ側装着部１８ｆとは、ライナー本体１１と繊維強化樹脂層１０２とで挟まれて、面圧を受ける。よって、ドーム側装着部１８ｄとフランジ側装着部１８ｆによる口金１６とライナー本体１１とのガスシール性は、高まる。しかも、ライナー１０はタンクガス圧によって膨張しようとするので、ドーム側装着部１８ｄとフランジ側装着部１８ｆは、高い面圧を受けてガスシール性をより高める。この他、ガスシール性を発揮するドーム側装着部１８ｄとフランジ側装着部１８ｆは、ＦＷ法による繊維巻回の際のエポキシ樹脂についても、シール性を発揮するので、開口凹所１５の内部はもとより、陥没台座部１４ｒの底面と口金フランジ１６ｆの底面との間へのエポキシ樹脂の浸入を高い実効性で回避できる。 In the liner 10 of this embodiment, the liquid gasket mounting portion 18 is hung on the dome side mounting portion 18d extending in a thin layer from the opening recess 15 to the outer peripheral wall of the liner, and on the flange outer surface center side of the base flange 16f. A flange-side mounting portion 18f extending in a thin layer shape is provided. For this reason, according to the liner 10 of the present embodiment, the gas sealing property between the base 16 and the liner main body 11 can be exhibited also by the dome side mounting portion 18d and the flange side mounting portion 18f, so that the gas sealing property is further improved. be able to. Further, when the carbon fiber ECF is wound by the FW method to form the fiber reinforced resin layer 102 on the liner 10, that is, in the form of the high-pressure gas tank 100, the dome side mounting portion 18 d and the flange side mounting portion 18 f Is sandwiched between the liner body 11 and the fiber reinforced resin layer 102 and receives a surface pressure. Therefore, the gas sealing property between the base 16 and the liner body 11 by the dome side mounting portion 18d and the flange side mounting portion 18f is enhanced. Moreover, since the liner 10 tends to expand due to the tank gas pressure, the dome side mounting portion 18d and the flange side mounting portion 18f receive a high surface pressure to further improve the gas sealing performance. In addition, the dome-side mounting portion 18d and the flange-side mounting portion 18f that exhibit gas sealing performance also exhibit sealing performance for epoxy resin when the fiber is wound by the FW method. Of course, it is possible to avoid the penetration of the epoxy resin between the bottom surface of the recessed pedestal portion 14r and the bottom surface of the base flange 16f with high effectiveness.

本実施形態のライナー１０の製造方法によれば、陥没台座部１４ｒと台座側連通路１４ｒｈを有するライナー本体１１の準備や、口金フランジ１６ｆとこれを貫通する口金連通孔１６ｈ１，１６ｈ２等を有する口金１６の準備を経て、陥没台座部１４ｒに口金フランジ１６ｆを入り込ませ、その後に、開口凹所１５にＦＩＰＧを塗布して硬化させるという平易な手順で、開口凹所１５のほぼ全域にＦＩＰＧが入り込んだ液状ガスケット装着部１８を容易に形成できる。こうして得られたライナー１０は、既述したように、口金１６の姿勢変化が起きにくく、口金１６についても高いガスシール性で装着したものとなる。よって、本実施形態のライナー１０の製造方法によれば、口金１６とライナー本体１１とのガスシール性を確保した上で、口金の姿勢を不用意に変えないライナー１０を容易に製造できる。 According to the method for manufacturing the liner 10 of the present embodiment, the liner main body 11 having the recessed pedestal portion 14r and the pedestal side communication path 14rh, the base flange 16f, the base having the base communication holes 16h1, 16h2, etc. penetrating through the base flange 11f are prepared. After the preparation of 16, the base flange 16f is inserted into the recessed pedestal portion 14r, and then FIPG enters almost the entire area of the opening recess 15 by a simple procedure in which FIPG is applied to the opening recess 15 and cured. The liquid gasket mounting portion 18 can be easily formed. As described above, the liner 10 obtained in this way hardly changes in the posture of the base 16, and the base 16 is also mounted with a high gas sealing property. Therefore, according to the method for manufacturing the liner 10 of the present embodiment, it is possible to easily manufacture the liner 10 that does not inadvertently change the posture of the base while ensuring the gas sealing property between the base 16 and the liner body 11.

本実施形態の高圧ガスタンク１００は、ライナー１０におけるライナー本体１１と口金１６とのガスシール性を確保した上で、口金の姿勢を不用意に変えないライナー１０の外表にＦＷ法にて繊維強化樹脂層１０２を形成して得られる。よって、本実施形態の高圧ガスタンク１００によれば、タンク両端から延びた口金１６のガスシール性を確保した上で、口金１６の姿勢を不用意に変えることのない高圧ガスタンクを容易に、且つ安定して提供できる。 The high-pressure gas tank 100 of the present embodiment secures the gas seal between the liner main body 11 and the base 16 in the liner 10, and the fiber reinforced resin on the outer surface of the liner 10 that does not carelessly change the position of the base by the FW method. Obtained by forming layer 102. Therefore, according to the high-pressure gas tank 100 of the present embodiment, a high-pressure gas tank that does not inadvertently change the position of the base 16 can be easily and stably secured while ensuring the gas sealing performance of the base 16 extending from both ends of the tank. Can be provided.

次に、他の実施形態について説明する。図１１は第２実施形態のライナー１０ＡにおけるＦＩＰＧの塗布初期の様子を示す説明図、図１２は第２実施形態のライナー１０ＡにおけるＦＩＰＧの押圧塗布を経た液状ガスケット装着部１８の形成の様子を示す説明図である。 Next, another embodiment will be described. FIG. 11 is an explanatory view showing an initial state of FIPG application on the liner 10A of the second embodiment, and FIG. 12 shows a state of formation of the liquid gasket mounting portion 18 that has undergone FIPG pressure application on the liner 10A of the second embodiment. It is explanatory drawing.

図示するように、このライナー１０Ａでは、口金１６の口金フランジ１６ｆの外周縁側に口金側連通路１６ｈ０を備える。この口金側連通路１６ｈ０は、陥没台座部１４ｒの底面の側において口金フランジ１６ｆを斜めに貫通し、開口凹所１５を、陥没台座部１４ｒの底面の側、即ちライナー外部への開口箇所から隔たった箇所で口金外部と連通する。よって、この口金側連通路１６ｈ０を有する口金１６を装着したライナー１０Ａにあっても、既述した台座側連通路１４ｒｈを有するライナー１０と同様、開口凹所１５へのＦＩＰＧの入り込みに伴う口金側連通路１６ｈ０からの残存エアーの導出により、既述した効果を奏することができる。 As illustrated, the liner 10 A includes a base-side communication path 16 h 0 on the outer peripheral side of the base flange 16 f of the base 16. The base-side communication path 16h0 obliquely penetrates the base flange 16f on the bottom surface side of the depressed pedestal portion 14r, and the opening recess 15 is separated from the bottom surface side of the depressed pedestal portion 14r, that is, from the opening position to the outside of the liner. Communicate with the outside of the base at just a point. Therefore, even in the liner 10A equipped with the base 16 having the base side communication path 16h0, the base side accompanying the FIPG entering the opening recess 15 is the same as the liner 10 having the base side communication path 14rh described above. By deriving the remaining air from the communication path 16h0, the effects described above can be achieved.

図１３は第３実施形態のライナー１０Ｂにおける台座側連通路１４ｒｈの形成の様子を示す説明図である。図示するように、この台座側連通路１４ｒｈは、ライナー軸ＡＸに向かってドーム部１４の外表に延びた溝形状をなし、陥没台座部１４ｒの底面の側から台座部開口の側まで、開口凹所１５をライナー外部と連通する。即ち、この台座側連通路１４ｒｈは、開口凹所１５を、ライナー外部への開口箇所から隔たった箇所を含んでライナー外部と連通する。よって、この溝状の台座側連通路１４ｒｈを有するライナー１０Ｂにあっても、開口凹所１５へのＦＩＰＧの入り込みに伴う台座側連通路１４ｒｈからの残存エアーの導出により、既述した効果を奏することができる。溝状の台座側連通路１４ｒｈについては、エンドミル等の切削工具を用いて形成できる。 FIG. 13 is an explanatory view showing a state of formation of the pedestal side communication path 14 rh in the liner 10 B of the third embodiment. As shown in the figure, the pedestal side communication path 14 rh has a groove shape extending outward from the dome portion 14 toward the liner axis AX, and is open from the bottom surface side of the depressed pedestal portion 14 r to the pedestal portion opening side. The station 15 communicates with the outside of the liner. That is, the pedestal side communication path 14rh communicates with the outside of the liner, including the opening recess 15 including a portion separated from the opening to the outside of the liner. Therefore, even in the liner 10 B having the groove-shaped pedestal side communication path 14 rh, the above-described effects can be obtained by deriving the remaining air from the pedestal side communication path 14 rh as the FIPG enters the opening recess 15. be able to. The groove-like pedestal side communication path 14r can be formed using a cutting tool such as an end mill.

図１４は第４実施形態のライナー１０Ｃにおける口金１６の装着端側の半断面を拡大して示す説明図である。図示するように、このライナー１０Ｃは、ライナー本体１１のドーム部１４の頂上箇所、即ちライナー軸ＡＸに沿った長手方向端部に、口金１６の装着用の環状凸部１４ｔを備え、その周囲を環状段部１４ｔｓとする。口金１６は、口金フランジ１６ｆの底面中央領域を、ドーム部１４の環状凸部１４ｔが挿入される環状凹部１６ｒとし、この環状凹部１６ｒの外側の外周縁１６ｆｅをドーム部１４の環状段部１４ｔｓに対向させて、この間に開口凹所１５を形成する。そして、口金１６は、口金連通孔１６ｈ１を、開口凹所１５の奥の側、即ちライナー外部への開口箇所から隔たった箇所に備え、この口金連通孔１６ｈ１にて、開口凹所１５をライナー外部に連通する。よって、この口金連通孔１６ｈ１を有する口金１６を環状凹部１６ｒへの環状凸部１４ｔの挿入を経てライナー本体１１に装着したライナー１０Ｃにあっても、開口凹所１５へのＦＩＰＧの入り込みに伴う口金連通孔１６ｈ１からの残存エアーの導出により、既述した効果を奏することができる。 FIG. 14 is an explanatory view showing, in an enlarged manner, a half section on the mounting end side of the cap 16 in the liner 10C of the fourth embodiment. As shown in the figure, the liner 10C is provided with an annular convex portion 14t for mounting the base 16 at the top portion of the dome portion 14 of the liner body 11, that is, the longitudinal end portion along the liner axis AX. Let it be an annular step 14ts. The base 16 has a central region of the bottom surface of the base flange 16f as an annular recess 16r into which the annular convex portion 14t of the dome portion 14 is inserted, and an outer peripheral edge 16fe outside the annular concave portion 16r serves as an annular step portion 14ts of the dome portion 14. Opposing recesses 15 are formed between them in opposition. The base 16 is provided with a base communication hole 16h1 on the back side of the opening recess 15, that is, a part separated from the opening part to the outside of the liner, and the opening recess 15 is provided outside the liner through the base communication hole 16h1. Communicate with. Therefore, even in the liner 10C in which the base 16 having the base communication hole 16h1 is attached to the liner main body 11 through the insertion of the annular convex portion 14t into the annular concave portion 16r, the base accompanying the entry of the FIPG into the opening recess 15 is provided. By deriving the remaining air from the communication hole 16h1, the effects described above can be achieved.

図１５は第５実施形態のライナー１０Ｄにおける口金１６の装着端側の半断面を拡大して示す説明図である。図示するように、このライナー１０Ｄは、ライナー本体１１のドーム部１４における環状段部１４ｔｓに、台座側連通路１４ｒｈを備える。この台座側連通路１４ｒｈは、ドーム部１４の外表から開口凹所１５に沿って延び、開口凹所１５の奥の側、即ちライナー外部への開口箇所から隔たった箇所で開口凹所１５と連通する。よって、ライナー本体１１は、この台座側連通路１４ｒｈにより、開口凹所１５をライナー外部に連通する。この台座側連通路１４ｒｈを有するライナー本体１１に口金１６を装着したライナー１０Ｄにあっても、開口凹所１５へのＦＩＰＧの入り込みに伴う台座側連通路１４ｒｈからの残存エアーの導出により、既述した効果を奏することができる。 FIG. 15 is an explanatory view showing, in an enlarged manner, a half section on the mounting end side of the base 16 in the liner 10D of the fifth embodiment. As illustrated, the liner 10 D includes a pedestal side communication path 14 rh at the annular step 14 ts in the dome portion 14 of the liner main body 11. The pedestal side communication path 14 rh extends along the opening recess 15 from the outer surface of the dome portion 14, and communicates with the opening recess 15 on the back side of the opening recess 15, that is, at a position separated from the opening to the outside of the liner. To do. Therefore, the liner main body 11 communicates the opening recess 15 to the outside of the liner through the pedestal side communication passage 14rh. Even in the liner 10D in which the base 16 is attached to the liner main body 11 having the pedestal side communication path 14rh, as described above, the residual air is derived from the pedestal side communication path 14rh as the FIPG enters the opening recess 15. The effect which it did can be show | played.

本発明は、上述の実施形態に限られるものではなく、その趣旨を逸脱しない範囲において種々の構成で実現することができる。例えば、発明の概要の欄に記載した各形態中の技術的特徴に対応する実施形態の技術的特徴は、上述の課題の一部又は全部を解決するために、或いは、上述の効果の一部又は全部を達成するために、適宜、差し替えや、組み合わせを行うことが可能である。また、その技術的特徴が本明細書中に必須なものとして説明されていなければ、適宜、削除することが可能である。 The present invention is not limited to the above-described embodiment, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the summary section of the invention are intended to solve part or all of the above-described problems, or part of the above-described effects. Or, in order to achieve the whole, it is possible to replace or combine as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

上記の実施形態では、開口凹所１５を円弧形状でライナー軸ＡＸを取り囲むにしたが、開口凹所１５を、矩形波形状に蛇行してライナー軸ＡＸを取り囲むよう形成したり、正弦波や三角波等の形状の繰り返しでライナー軸ＡＸを取り囲むよう、形成してもよい。こうすれば、開口凹所１５に入り込んだＦＩＰＧによる液状ガスケット装着部１８の軌跡を長くできるので、液状ガスケット装着部１８によるガスシール性をより一層高めることができる。 In the above embodiment, the opening recess 15 has an arc shape and surrounds the liner axis AX. However, the opening recess 15 meanders in a rectangular wave shape so as to surround the liner axis AX, or a sine wave or a triangular wave. It may be formed so as to surround the liner axis AX by repeating the shape. By doing so, the trajectory of the liquid gasket mounting portion 18 by FIPG entering the opening recess 15 can be lengthened, so that the gas sealing property by the liquid gasket mounting portion 18 can be further enhanced.

上記の実施形態では、口金１６の口金フランジ１６ｆにおける口金連通孔１６ｈ１，１６ｈ２については、貫通孔のままとしている。このようにできるほか、液状ガスケット装着部１８を形成した後に、フランジ外表側から、或いはバルブ接続孔１６ｈの内壁面の側からＦＩＰＧを充填してもよい。このようにＦＩＰＧを充填する際、陥没台座部１４ｒの底面の側にエアーが残存し得るが、その残存量は少量なため、特段の支障は無い。 In the above embodiment, the base communication holes 16h1 and 16h2 in the base flange 16f of the base 16 are left as through holes. In addition to this, after forming the liquid gasket mounting portion 18, FIPG may be filled from the outer surface side of the flange or from the inner wall surface side of the valve connection hole 16h. When filling the FIPG in this way, air may remain on the bottom surface side of the depressed pedestal portion 14r. However, since the remaining amount is small, there is no particular problem.

第１実施形態のライナー１０では、台座側連通路１４ｒｈと口金連通孔１６ｈ１，１６ｈ２を備えたが、口金連通孔を省略してもよい。第２実施形態のライナー１０Ａでは、口金１６に設けた口金側連通路１６ｈ０に加え、ライナー本体１１に台座側連通路１４ｒｈを設けてもよい。第４、第５の実施形態のライナー１０Ｃ，１０Ｄにおいて、口金１６の口金連通孔１６ｈ１とライナー本体１１の台座側連通路１４ｒｈを併用してもよい。 In the liner 10 of the first embodiment, the pedestal side communication path 14rh and the base communication holes 16h1 and 16h2 are provided, but the base communication hole may be omitted. In the liner 10 A of the second embodiment, in addition to the base side communication path 16 h 0 provided in the base 16, a pedestal side communication path 14 rh may be provided in the liner main body 11. In the liners 10 C and 10 D of the fourth and fifth embodiments, the base communication hole 16 h 1 of the base 16 and the base side communication path 14 rh of the liner body 11 may be used in combination.

１０、１０Ａ〜１０Ｄ…ライナー
１１…ライナー本体
１２…シリンダー部
１４…ドーム部
１４ｈ…貫通孔
１４ｒ…陥没台座部
１４ｔ…環状凸部
１４ｒｈ…台座側連通路
１４ｒｓ…凹所内周壁
１４ｔｓ…環状段部
１５…開口凹所
１６…口金
１６ｂ…口金本体
１６ｃ…口金先端部
１６ｆ…口金フランジ
１６ｈ…バルブ接続孔
１６ｒ…環状凹部
１６ｔ…凸部
１６ｈ０…口金側連通路
１６ｈ１…口金連通孔
１６ｈ２…口金連通孔
１６ｆｅ…外周縁
１８…液状ガスケット装着部
１８ｄ…ドーム側装着部
１８ｆ…フランジ側装着部
１００…高圧ガスタンク
１０２…繊維強化樹脂層
１１０…塗布ヘッド
１１２…塗布ヘッド
１２０…傾斜プレート
ＡＸ…ライナー軸
ＥＣＦ…カーボン繊維 DESCRIPTION OF SYMBOLS 10, 10A-10D ... Liner 11 ... Liner main body 12 ... Cylinder part 14 ... Dome part 14h ... Through-hole 14r ... Depression base part 14t ... Ring-shaped convex part 14rh ... Pedestal side communication path 14rs ... Recess inner peripheral wall 14ts ... Ring-shaped step part 15 ... Opening recess 16 ... Base 16b ... Base body 16c ... Base tip 16f ... Base flange 16h ... Valve connection hole 16r ... Annular recess 16t ... Projection 16h0 ... Base side communication passage 16h1 ... Base communication hole 16h2 ... Base communication hole 16fe ... outer peripheral edge 18 ... liquid gasket mounting portion 18d ... dome side mounting portion 18f ... flange side mounting portion 100 ... high pressure gas tank 102 ... fiber reinforced resin layer 110 ... coating head 112 ... coating head 120 ... inclined plate AX ... liner shaft ECF ... carbon fiber

Claims

A liner for a high pressure gas tank,
A base involved in the supply and discharge of gas,
A liner main body having a base part that forms a cylindrical hollow container and is joined to a base flange of the base and to which the base is attached;
An opening recess formed between the base pedestal portion and the base flange and opened to the outside of the liner, and a communication path communicating from the position separated from the opening to the outside of the liner to the outside of the liner,
A liner comprising a liquid gasket disposed in the opening recess.

2. The liner according to claim 1, wherein the communication passage communicates the opening recess with the outside of the liner in the liner body and / or the base flange.

3. The liner according to claim 1, wherein the liquid gasket is also disposed inside the communication passage on a side separated from an opening to the outside of the liner.

The liner according to any one of claims 1 to 3, wherein the base includes a base communication hole that penetrates the base from a joint portion where the base flange joins the base pedestal to reach the outside of the base. .

A method of manufacturing a liner fitted with a base involved in gas supply and discharge,
Forming a cylindrical hollow container and preparing a liner body having a base pedestal for mounting the base; and
The base having a base flange, wherein the base flange is attached to the liner main body by joining to the base pedestal, and is opened to the outside of the liner between the base pedestal and the base flange. Preparing the base to form
Joining the base flange to the base pedestal and attaching the base to the liner body;
And a step of applying a liquid gasket to the opening recess and curing it.
In the step of preparing the base,
A method of manufacturing a liner, wherein a communication path that communicates the opening recess formed by mounting the base to the outside of the liner from a position separated from the opening to the outside of the liner is formed in the base flange.

A method for producing a liner according to claim 5,
In the step of preparing the liner body,
A communication path that communicates with the outside of the liner from a location separated from the opening location to the outside of the liner by forming the opening recess formed by mounting the base, is formed from the base seat portion to the outer surface of the liner body, Liner manufacturing method.

A method of manufacturing a liner fitted with a base involved in gas supply and discharge,
Forming a cylindrical hollow container and preparing a liner body having a base pedestal for mounting the base; and
The base having a base flange, wherein the base flange is attached to the liner main body by joining to the base pedestal, and is opened to the outside of the liner between the base pedestal and the base flange. Preparing the base to form
Joining the base flange to the base pedestal and attaching the base to the liner body;
And a step of applying a liquid gasket to the opening recess and curing it.
In the step of preparing the liner body,
A communication path that communicates with the outside of the liner from a location separated from the opening location to the outside of the liner by forming the opening recess formed by mounting the base, is formed from the base seat portion to the outer surface of the liner body, Liner manufacturing method.

A high pressure gas tank,
A liner according to any one of claims 1 to 4,
A high-pressure gas tank comprising a fiber layer formed by repeatedly winding a fiber bundle on the outer surface of the liner.