JP2013137092A - Pressure container, and method for manufacturing pressure container - Google Patents

Pressure container, and method for manufacturing pressure container Download PDF

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Publication number
JP2013137092A
JP2013137092A JP2012099372A JP2012099372A JP2013137092A JP 2013137092 A JP2013137092 A JP 2013137092A JP 2012099372 A JP2012099372 A JP 2012099372A JP 2012099372 A JP2012099372 A JP 2012099372A JP 2013137092 A JP2013137092 A JP 2013137092A
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neck portion
base member
reinforcing member
seal
reinforcing
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JP2013137092A5 (en
JP5902028B2 (en
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Kazuhiro Nakamura
和広 中村
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Yachiyo Industry Co Ltd
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Yachiyo Industry Co Ltd
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Priority to PCT/JP2012/079738 priority patent/WO2013080810A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a pressure container simply constructed to enable reliable sealing.SOLUTION: A pressure container 1 includes a hollow resin liner 2 having a protruded cylindrical neck part 2c for storing gas or liquid, a cap member 3 provided outside the neck part 2c, a valve 6 inserted inside the neck part 2c and the cap member 3, a first seal member 7 provided between the outside of the neck part 2c and the inside of the cap member 3, and a second seal member 8 provided between the cap member 3 and the valve 6, wherein a reinforcing member 9 is provided over the peripheral direction of the neck part 2c.

Description

本発明は、気体又は液体を貯留する圧力容器及び圧力容器の製造方法に関する。   The present invention relates to a pressure vessel for storing gas or liquid and a method for manufacturing the pressure vessel.

高圧の気体や液体を貯留することができる圧力容器が知られている。近年では、圧力容器の軽量化を目的として、合成樹脂製の薄肉容器（樹脂ライナー）を、樹脂が含浸された繊維強化層で被い、その後樹脂を硬化させる複合構造の圧力容器が提案されている。   Pressure vessels capable of storing high-pressure gas and liquid are known. In recent years, for the purpose of reducing the weight of a pressure vessel, a composite pressure vessel has been proposed in which a thin-walled container (resin liner) made of synthetic resin is covered with a fiber reinforced layer impregnated with resin, and then the resin is cured. Yes.

例えば、特許文献１に記載の圧力容器は、突出するネック部を備えた樹脂ライナーと、樹脂ライナーの外側に設けられた口金部材と、前記樹脂ライナー及び前記口金部材を覆う繊維強化樹脂層（ＦＲＰ層）とで構成されている。口金部材の筒部の内周面には例えば雌ネジが形成されており、この雌ネジにバルブを締結して、バルブから圧力容器の内部の気体又は液体を注排する。   For example, a pressure vessel described in Patent Document 1 includes a resin liner having a protruding neck portion, a base member provided outside the resin liner, and a fiber reinforced resin layer (FRP) covering the resin liner and the base member. Layer). For example, a female screw is formed on the inner peripheral surface of the cylindrical portion of the base member. A valve is fastened to the female screw, and gas or liquid inside the pressure vessel is discharged from the valve.

特開２００９−５８１１１号公報JP 2009-58111 A

樹脂ライナーと金属製の口金部材とは材料が異なるため、これらの部材を気体や液体がリークしないように隙間なく接合することは容易ではない。一方で、リークしないようにシール構造を複雑化させると、製造作業が煩雑になったり、製造コストが増加したりするという問題がある。   Since the resin liner and the metal base member are made of different materials, it is not easy to join these members without gaps so that gas and liquid do not leak. On the other hand, if the seal structure is complicated so as not to leak, the manufacturing work becomes complicated and the manufacturing cost increases.

本発明はこのような課題を解決するために創作されたものであり、簡易な構造で確実にシールすることができる圧力容器を提供することを課題とする。   The present invention has been created to solve such problems, and an object of the present invention is to provide a pressure vessel that can be reliably sealed with a simple structure.

前記課題を解決するため、本発明は、突出する筒状のネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、前記ネック部の外側に設けられた口金部材と、前記ネック部及び前記口金部材の内側に挿入された取付部材と、前記樹脂ライナー及び前記口金部材の外側を覆う補強層と、前記ネック部と前記口金部材との間に介設された第一シール部材と、前記口金部材と前記取付部材との間に介設された第二シール部材と、前記ネック部にの周方向に亘って設けられた補強部材と、を有することを特徴とする。   In order to solve the above-mentioned problems, the present invention comprises a hollow resin liner that has a protruding cylindrical neck portion, and accommodates a gas or a liquid, a base member provided outside the neck portion, the neck portion, and An attachment member inserted inside the base member, a reinforcing layer covering the resin liner and the outside of the base member, a first seal member interposed between the neck portion and the base member, It has the 2nd sealing member interposed between the nozzle | cap | die member and the said attachment member, and the reinforcement member provided over the circumferential direction to the said neck part, It is characterized by the above-mentioned.

かかる構成によれば、内圧を受けてへたりやすいネック部の先端に補強部材を設けることにより、ネック部の強度を高めることができる。第一シール部材は、口金部材と強度が向上したネック部との間に介設されるため、樹脂ライナーに貯留された気体又は液体のリークを確実に防止することができる。特に、第一シール部材によれば、内圧を受けてネック部が外側（ネック部の中心軸から離間する方向）にわずかに傾倒した際に、ネック部と口金部材との間でセルフシール構造となるため、高い内圧が作用した場合にも確実にリークを防止することができる。さらに、口金部材とバルブ等の取付部材との間は第二シール部材で確実にシールすることができる。   According to such a configuration, it is possible to increase the strength of the neck portion by providing the reinforcing member at the tip of the neck portion that is likely to sag due to internal pressure. Since the first seal member is interposed between the base member and the neck portion having improved strength, it is possible to reliably prevent leakage of gas or liquid stored in the resin liner. In particular, according to the first seal member, when the neck portion is slightly inclined outward (in a direction away from the central axis of the neck portion) due to internal pressure, a self-sealing structure is provided between the neck portion and the base member. Therefore, leakage can be reliably prevented even when a high internal pressure is applied. Furthermore, the gap between the base member and the mounting member such as a valve can be reliably sealed with the second seal member.

また、前記第一シール部材は、前記補強部材と同じ高さ位置に設けられていることが好ましい。かかる構成によれば、ネック部のうち強度が最も高い部分と口金部材とで第一シール部材が挟まれるため、より確実にシールすることができる。   The first seal member is preferably provided at the same height as the reinforcing member. According to such a configuration, since the first seal member is sandwiched between the neck portion having the highest strength and the base member, the seal can be more reliably performed.

また、本発明は、突出する筒状のネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、前記ネック部の外側に設けられた口金部材と、前記ネック部及び前記口金部材の内側に挿入された取付部材と、前記樹脂ライナー及び前記口金部材の外側を覆う補強層と、前記ネック部と前記取付部材との間に介設された第三シール部材と、前記ネック部にの周方向に亘って設けられた補強部材と、を有することを特徴とする。   The present invention also includes a hollow resin liner that includes a protruding cylindrical neck portion and that accommodates gas or liquid, a cap member provided outside the neck portion, and an inner side of the neck portion and the cap member. A mounting member inserted into the base plate, a reinforcing layer covering the outside of the resin liner and the base member, a third seal member interposed between the neck portion and the mounting member, and a periphery of the neck portion. And a reinforcing member provided across the direction.

かかる構成によれば、内圧を受けてへたりやすいネック部の先端に補強部材を設けることにより、ネック部の強度を高めることができる。第三シール部材は、バルブ等の取付部材と強度が向上したネック部との間に介設されるため、樹脂ライナーに貯留された気体又は液体のリークを確実に防止することができる。また、一つのシール部材で、樹脂ライナーに貯留された気体又は液体のリークを確実に防止することができる。   According to such a configuration, it is possible to increase the strength of the neck portion by providing the reinforcing member at the tip of the neck portion that is likely to sag due to internal pressure. Since the third seal member is interposed between an attachment member such as a valve and a neck portion with improved strength, it is possible to reliably prevent leakage of gas or liquid stored in the resin liner. Moreover, the leak of the gas or liquid stored by the resin liner can be reliably prevented with one seal member.

また、前記第三シール部材は、前記補強部材と同じ高さ位置に設けられていることが好ましい。かかる構成によれば、ネック部のうち強度が最も高い部分とバルブ等の取付部材とで第三シール部材が挟まれるため、より確実にシールすることができる。   The third seal member is preferably provided at the same height as the reinforcing member. According to this configuration, since the third seal member is sandwiched between the highest strength portion of the neck portion and the attachment member such as a valve, the seal can be more reliably performed.

また、前記口金部材は、リング状のフランジ部と、前記フランジ部から突出する筒状の突出部と、を有し、前記突出部は、先細りとなるように前記ネック部の中心軸方向に傾斜する傾斜部を備えていることが好ましい。圧力容器に内圧が作用すると、口金部材のフランジ部に応力が集中し、樹脂ライナーから口金部材が離脱するおそれがある。しかし、かかる構成によれば、突出部に傾斜部を設けることで前記応力を傾斜部に分散させることができるため、口金部材の離脱を防ぐことができる。   The base member has a ring-shaped flange portion and a cylindrical projecting portion projecting from the flange portion, and the projecting portion is inclined in the direction of the central axis of the neck portion so as to be tapered. It is preferable to provide an inclined portion. When the internal pressure acts on the pressure vessel, stress concentrates on the flange portion of the base member, and the base member may be detached from the resin liner. However, according to this structure, since the stress can be dispersed in the inclined portion by providing the inclined portion in the protruding portion, it is possible to prevent the cap member from being detached.

また、本発明は、ブローピンに補強部材を配置する配置工程と、一対の成形型の間にパリソンを供給するパリソン供給工程と、前記成形型を閉じつつこれらの成形型によって形成された空間に前記ブローピン及び前記補強部材を挿入する型締め工程と、前記ブローピンに空気を供給して前記成形型に前記パリソンを転写させるブロー工程と、を含み、前記ブローピンは、大径部と、前記大径部の先端側に設けられた小径部と、前記大径部と前記小径部によって形成された段差部とを備え、前記配置工程では、前記補強部材を前記段差部に配置させ、前記ブロー工程では、前記段差部と前記小径部と前記成形型とで囲まれた空間にパリソンを充填させることを特徴とする。   Further, the present invention provides an arrangement step of disposing a reinforcing member on the blow pin, a parison supply step of supplying a parison between a pair of molds, and a space formed by these molds while closing the mold. A mold clamping step of inserting the blow pin and the reinforcing member, and a blow step of supplying air to the blow pin to transfer the parison to the mold, wherein the blow pin has a large diameter portion and the large diameter portion A small-diameter portion provided on the distal end side, and a step portion formed by the large-diameter portion and the small-diameter portion, in the arranging step, the reinforcing member is arranged on the step portion, and in the blowing step, A space surrounded by the stepped portion, the small diameter portion, and the mold is filled with a parison.

かかる方法によれば、ブローピンの段差部に補強部材を配置してブロー成形するだけでよいため、作業手間や製造コストを削減することができる。   According to this method, since it is only necessary to arrange the reinforcing member at the step portion of the blow pin and perform blow molding, it is possible to reduce labor and manufacturing cost.

また、前記補強部材は、円筒状を呈する本体部と、前記本体部から内側に向けて突出する位置決め部とを備え、前記配置工程では、前記小径部に前記位置決め部を当接させることが好ましい。   The reinforcing member preferably includes a cylindrical main body portion and a positioning portion that protrudes inward from the main body portion, and in the arranging step, the positioning portion is brought into contact with the small diameter portion. .

かかる方法によれば、ブローピンに対して補強部材が位置決めされるため、ネック部に補強部材を精度よく設けることができる。   According to this method, since the reinforcing member is positioned with respect to the blow pin, the reinforcing member can be accurately provided on the neck portion.

本発明に係る圧力容器及び圧力容器の製造方法によれば、簡易な構造で確実にシールすることができる。   According to the pressure vessel and the pressure vessel manufacturing method of the present invention, it is possible to reliably seal with a simple structure.

第一実施形態に係る圧力容器を示す一部破断側断面図である。It is a partially broken side sectional view showing a pressure vessel concerning a first embodiment. 第一実施形態に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on 1st embodiment. 第一実施形態に係る圧力容器の製造方法の配置工程及び型締め工程を示した模式断面図である。It is the schematic cross section which showed the arrangement | positioning process and mold clamping process of the manufacturing method of the pressure vessel which concerns on 1st embodiment. 第一実施形態に係る圧力容器の製造方法のブロー工程を示した模式断面図である。It is the schematic cross section which showed the blow process of the manufacturing method of the pressure vessel which concerns on 1st embodiment. 第二実施形態に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on 2nd embodiment. 第三実施形態に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on 3rd embodiment. （ａ）は第一変形例、（ｂ）は第二変形例を示す模式側断面図である。(A) is a schematic side sectional view showing a first modification, and (b) is a second modification. （ａ）は第三変形例、（ｂ）は第四変形例を示す模式側断面図である。(A) is a 3rd modification, (b) is a typical sectional side view which shows a 4th modification. 第五変形例を示す模式側断面図である。It is a schematic sectional side view which shows a 5th modification. 第六変形例を示す模式側断面図である。It is a model side sectional view showing the 6th modification. 第六変形例に係る圧力容器の製造方法を示す図であって、（ａ）はブロー前、（ｂ）はブロー後を示す。It is a figure which shows the manufacturing method of the pressure vessel which concerns on a 6th modification, Comprising: (a) shows before blow, (b) shows after blow.

［第一実施形態］
本発明の実施形態について図面を参照して詳細に説明する。図１に示すように、本実施形態に係る圧力容器１は、樹脂ライナー２と、樹脂ライナー２の端部に形成された口金部材３と、樹脂ライナー２の外周を覆う繊維強化樹脂層５と、口金部材３に取り付けられたバルブ６と、第一シール部材７と、第二シール部材８と、補強部材９で主に構成されている。圧力容器１は、例えば、内部に液体又は気体を収容することができる容器である。 [First embodiment]
Embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a pressure vessel 1 according to this embodiment includes a resin liner 2, a cap member 3 formed at an end of the resin liner 2, and a fiber reinforced resin layer 5 covering the outer periphery of the resin liner 2 The valve 6 attached to the base member 3, the first seal member 7, the second seal member 8, and the reinforcing member 9 are mainly configured. The pressure vessel 1 is, for example, a vessel that can contain a liquid or a gas inside.

樹脂ライナー２は、図１及び図２に示すように、樹脂製であって内部が中空になっている。樹脂ライナー２の材料は特に制限されないが、収容する気体又は液体の種類や用途に応じて、例えば、ポリエチレン（ＰＥ）、高密度ポリエチレン（ＨＤＰＥ）、ポリアミド、ポリケトン、ポリフェニレンサルフィド（ＰＰＳ）などが用いられる。樹脂ライナー２を樹脂で形成することで、軽量化を図ることができる。   As shown in FIGS. 1 and 2, the resin liner 2 is made of resin and is hollow inside. The material of the resin liner 2 is not particularly limited, but, for example, polyethylene (PE), high-density polyethylene (HDPE), polyamide, polyketone, polyphenylene sulfide (PPS), etc., may be used depending on the type or application of the gas or liquid to be contained. Used. By forming the resin liner 2 with resin, weight reduction can be achieved.

樹脂ライナー２は、本実施形態では、筒状を呈する胴部２ａと、胴部２ａの端部側を構成する曲面を備えた肩部２ｂと、肩部２ｂから中心軸Ｃ方向に沿って突出するネック部２ｃとで構成されている。ネック部２ｃは、圧力容器１の外部（中心軸Ｃの延長方向外側）に向けて突出している。樹脂ライナー２の形状は、特に制限されるものではなく、例えば、球形であってもよい。   In the present embodiment, the resin liner 2 protrudes along the central axis C direction from the shoulder 2b having a cylindrical body 2a, a shoulder 2b having a curved surface constituting the end of the body 2a, and the shoulder 2b. And a neck portion 2c. The neck portion 2c protrudes toward the outside of the pressure vessel 1 (outside in the extension direction of the central axis C). The shape of the resin liner 2 is not particularly limited, and may be a spherical shape, for example.

ネック部２ｃは、図２に示すように、肩部２ｂに連続し円筒状を呈する。ネック部２ｃの先端には後記する補強部材９が設けられている。ネック部２ｃの内側（中心軸Ｃに近づく方向）には後記するバルブ６が当接し、外側（中心軸Ｃから離間する方向）には口金部材３が当接している。   As shown in FIG. 2, the neck portion 2 c is continuous with the shoulder portion 2 b and has a cylindrical shape. A reinforcing member 9 to be described later is provided at the tip of the neck portion 2c. A valve 6 described later is in contact with the inside of the neck portion 2c (direction approaching the center axis C), and the base member 3 is in contact with the outside (direction away from the center axis C).

口金部材３は、図２に示すように、金属製であって環状のフランジ部２１と、フランジ部２１に突出した突出部２２とで構成されている。突出部２２は略円筒状を呈し、その内周面にはシール受け溝２３と、ネジ溝２４とが形成されている。シール受け溝２３は、全周に亘って形成されており、第一シール部材７が配置される部位である。ネジ溝２４は、バルブ６が螺合するための雌ネジが形成されている。突出部２２の上端面には、シール受け溝２５が形成されている。シール受け溝２５は、全周に亘って形成されており、第二シール部材８が配置される部位である。   As shown in FIG. 2, the base member 3 is made of metal and includes an annular flange portion 21 and a protruding portion 22 protruding from the flange portion 21. The protrusion 22 has a substantially cylindrical shape, and a seal receiving groove 23 and a screw groove 24 are formed on the inner peripheral surface thereof. The seal receiving groove 23 is formed over the entire circumference and is a part where the first seal member 7 is disposed. The screw groove 24 is formed with a female screw for the valve 6 to be screwed therein. A seal receiving groove 25 is formed on the upper end surface of the protruding portion 22. The seal receiving groove 25 is formed over the entire circumference and is a part where the second seal member 8 is disposed.

口金部材３は、樹脂ライナー２に対して回転しないように形成することが好ましい。例えば、樹脂ライナー２の成型時に発生したバリを利用して、樹脂ライナー２の外面から外側に突出するリブを形成しつつ、このリブを口金部材３の内面に設けたスリットに挿入して回り止め構造としてもよい。   The base member 3 is preferably formed so as not to rotate with respect to the resin liner 2. For example, by using a burr generated during molding of the resin liner 2, a rib protruding outward from the outer surface of the resin liner 2 is formed, and this rib is inserted into a slit provided on the inner surface of the base member 3 to prevent rotation. It is good also as a structure.

繊維強化樹脂層５は、ＦＲＰ（繊維強化プラスチック）であり、樹脂ライナー２の外周及び口金部材３の一部を覆うように形成されている。繊維強化樹脂層５に使用される樹脂としては、強度が高いことからエポキシ系樹脂が一般的である。繊維強化樹脂層５は、特許請求の範囲の「補強層」に相当する。補強層は、繊維強化樹脂に限定されるものではなく、樹脂ライナー２の強度を向上することができる他の材料で形成してもよい。   The fiber reinforced resin layer 5 is FRP (fiber reinforced plastic), and is formed so as to cover the outer periphery of the resin liner 2 and a part of the base member 3. The resin used for the fiber reinforced resin layer 5 is generally an epoxy resin because of its high strength. The fiber reinforced resin layer 5 corresponds to a “reinforcing layer” in the claims. The reinforcing layer is not limited to the fiber reinforced resin, and may be formed of other materials that can improve the strength of the resin liner 2.

バルブ６は、図２に示すように、樹脂ライナー２のネック部２ｃ及び口金部材３の内側に挿入されている。バルブ６は、大径部３１と、大径部３１の外周から外側に張り出した押え部３２と、大径部３１に連続する小径部３３とで構成されている。バルブ６の内部には、上下方向に連通する連通孔が形成されている。バルブ６は、特許請求の範囲の「取付部材」に相当する。「取付部材」は、前記ネック部２ｃ及び口金部材３に取り付けられる部材であればよく、例えばジョイント部材であってもよい。   As shown in FIG. 2, the valve 6 is inserted inside the neck portion 2 c of the resin liner 2 and the base member 3. The valve 6 includes a large-diameter portion 31, a presser portion 32 that protrudes outward from the outer periphery of the large-diameter portion 31, and a small-diameter portion 33 that continues to the large-diameter portion 31. A communication hole communicating in the vertical direction is formed inside the valve 6. The valve 6 corresponds to an “attachment member” in the claims. The “attachment member” may be a member attached to the neck portion 2c and the base member 3, and may be a joint member, for example.

大径部３１の下部（押え部３２より下側）には、ネジ溝３１ａが形成されている。ネジ溝３１ａは、口金部材３のネジ溝２４に螺合される部位である。押え部３２は、大径部３１から外側に張り出しており、平面視円板状を呈する。押え部３２の外径は、口金部材３の突出部２２の先端の外径と同等になっている。   A screw groove 31a is formed in the lower portion of the large diameter portion 31 (below the presser portion 32). The screw groove 31 a is a part that is screwed into the screw groove 24 of the base member 3. The presser portion 32 projects outward from the large diameter portion 31 and has a disk shape in plan view. The outer diameter of the pressing portion 32 is equal to the outer diameter of the tip of the protruding portion 22 of the base member 3.

小径部３３は、大径部３１の下側において、大径部３１と同心で延設されている。小径部３３の外周面は、ネック部２ｃの内周面に当接している。   The small diameter portion 33 extends concentrically with the large diameter portion 31 below the large diameter portion 31. The outer peripheral surface of the small diameter portion 33 is in contact with the inner peripheral surface of the neck portion 2c.

第一シール部材７は、Ｏリングであって、シール受け溝２３に配置されている。第一シール部材７は、樹脂ライナー２と口金部材３との間をシールする部材である。具体的には、第一シール部材７は、シール受け溝２３の底面とネック部２ｃの外周面に当接している。本実施形態では、第一シール部材７は、補強部材９と同じ高さ位置に配置されている。   The first seal member 7 is an O-ring and is disposed in the seal receiving groove 23. The first seal member 7 is a member that seals between the resin liner 2 and the base member 3. Specifically, the first seal member 7 is in contact with the bottom surface of the seal receiving groove 23 and the outer peripheral surface of the neck portion 2c. In the present embodiment, the first seal member 7 is disposed at the same height as the reinforcing member 9.

第二シール部材８は、Ｏリングであって、シール受け溝２５に配置されている。第二シール部材８は、口金部材３とバルブ６との間をシールする部材である。具体的には、第二シール部材８は、シール受け溝２５の底面と、押え部３２の下面とに当接している。   The second seal member 8 is an O-ring and is disposed in the seal receiving groove 25. The second seal member 8 is a member that seals between the base member 3 and the valve 6. Specifically, the second seal member 8 is in contact with the bottom surface of the seal receiving groove 25 and the lower surface of the pressing portion 32.

補強部材９は、ネック部２ｃの先端の内部に設けられる部材であって、ネック部２ｃの強度を高める部材である。補強部材９は、金属製であって、円筒状の本体部３５と、本体部３５の上端側から内側（中心軸Ｃ側）に向けて突出する位置決め部３６とを備えている。位置決め部３６は、本実施形態では、本体部３５の内周面の全周に亘って形成されている。また、位置決め部３６は、バルブ６の小径部３３に当接している。   The reinforcing member 9 is a member provided inside the tip of the neck portion 2c, and is a member that increases the strength of the neck portion 2c. The reinforcing member 9 is made of metal and includes a cylindrical main body portion 35 and a positioning portion 36 that protrudes from the upper end side of the main body portion 35 toward the inner side (center axis C side). In this embodiment, the positioning part 36 is formed over the entire circumference of the inner peripheral surface of the main body part 35. The positioning portion 36 is in contact with the small diameter portion 33 of the valve 6.

補強部材９は、本実施形態では金属製としたが、硬質であれば他の材料で形成してもよい。また、補強部材９は、一体物ではなく分割して構成されていてもよいし、周方向に断続的に構成されていてもよい。また、位置決め部３６のみが、本体部３５の内周面に断続的に形成されていてもよい。   The reinforcing member 9 is made of metal in the present embodiment, but may be formed of other materials as long as it is hard. In addition, the reinforcing member 9 may be configured not as a single unit but divided, or may be configured intermittently in the circumferential direction. Further, only the positioning portion 36 may be intermittently formed on the inner peripheral surface of the main body portion 35.

次に、本実施形態に係る圧力容器の製造方法について説明する。圧力容器の製造方法については特に制限されないが、本実施形態ではブロー成形によって製造する場合を例示する。圧力容器の製造方法では、配置工程と、パリソン供給工程と、型締め工程と、ブロー工程と、口金部材設置工程と、繊維強化樹脂層成形工程と、部品取付工程とを行う。   Next, a method for manufacturing a pressure vessel according to this embodiment will be described. The method for manufacturing the pressure vessel is not particularly limited, but in the present embodiment, a case of manufacturing by blow molding is illustrated. In the pressure vessel manufacturing method, an arrangement process, a parison supply process, a mold clamping process, a blow process, a cap member installation process, a fiber reinforced resin layer molding process, and a component mounting process are performed.

配置工程では、図３に示すように、ブローピン４１に補強部材９を配置する。ブローピン４１は、筒状を呈し成形型Ｋ，Ｋによって閉じられた空間に空気を吹き込む器具である。ブローピン４１は、大径部４２と、大径部４２と同心で形成された小径部４３とで構成されている。大径部４２と小径部４３との段差によって水平面となる段差部４４が形成されている。   In the arranging step, the reinforcing member 9 is arranged on the blow pin 41 as shown in FIG. The blow pin 41 is a device that has a cylindrical shape and blows air into a space closed by the molding dies K and K. The blow pin 41 includes a large diameter portion 42 and a small diameter portion 43 formed concentrically with the large diameter portion 42. A stepped portion 44 that is a horizontal plane is formed by a step between the large diameter portion 42 and the small diameter portion 43.

配置工程では、具体的には、補強部材９を段差部４４に配置する。補強部材９の内径（位置決め部３６の内径）は、小径部４３の外径と同等になっているため、補強部材９と小径部４３とは当接する。これにより、ブローピン４１に対する補強部材９の位置が決まる。補強部材９の周囲に接着剤を予め塗布しておいてもよい。なお、ブローピン４１の小径部４３とバルブ６の小径部３３とは同径になっている。   In the arranging step, specifically, the reinforcing member 9 is arranged on the step portion 44. Since the inner diameter of the reinforcing member 9 (the inner diameter of the positioning portion 36) is equal to the outer diameter of the small diameter portion 43, the reinforcing member 9 and the small diameter portion 43 are in contact with each other. Thereby, the position of the reinforcing member 9 with respect to the blow pin 41 is determined. An adhesive may be applied in advance around the reinforcing member 9. The small diameter portion 43 of the blow pin 41 and the small diameter portion 33 of the valve 6 have the same diameter.

パリソン供給工程では、ブローピン４１の外側であり、かつ、後記する成形型Ｋ，Ｋの間に筒状のパリソンＰを供給する。なお、図３では、説明の便宜上、パリソンの描画を省略している。   In the parison supply step, a cylindrical parison P is supplied outside the blow pin 41 and between molds K and K described later. In FIG. 3, the drawing of the parison is omitted for convenience of explanation.

型締め工程では、図３に示すように、成形型Ｋ，Ｋの型締めを行う。成形型Ｋの端部の内面Ｋ１，Ｋ１は大径部４２に対向するように半円状にくり抜かれている。大径部４２と内面Ｋ１，Ｋ１との間には空気抜けのための微細な隙間が形成されている。型締めを行うことにより、内面Ｋ１，Ｋ１と、段差部４４及び小径部４３とで囲まれたキャビティが形成される。このキャビティによって樹脂ライナー２のネック部２ｃが形成される。   In the mold clamping process, as shown in FIG. 3, the molds K and K are clamped. The inner surfaces K1 and K1 at the end of the mold K are cut out in a semicircular shape so as to face the large diameter portion 42. A fine gap for air removal is formed between the large diameter portion 42 and the inner surfaces K1, K1. By performing the mold clamping, a cavity surrounded by the inner surfaces K1 and K1, the step portion 44, and the small diameter portion 43 is formed. The neck portion 2c of the resin liner 2 is formed by this cavity.

ブロー工程では、図４に示すように、ブローピン４１に空気を供給して、パリソンＰを成形型Ｋ，Ｋに転写させる。パリソンＰは、溶融した樹脂であって、後に樹脂ライナー２となる材料である。ブロー成形の際の空気の圧力によって、パリソンＰが流動し、前記したキャビティにパリソンＰが確実に充填される。   In the blowing step, as shown in FIG. 4, air is supplied to the blow pins 41 to transfer the parison P to the molds K and K. The parison P is a molten resin and is a material that will later become the resin liner 2. The parison P flows by the pressure of the air during blow molding, and the parison P is reliably filled in the cavity.

ブローが終了したら、ブローピン４１を成形型Ｋ，Ｋの外部に縮退させて脱型する。これにより、樹脂ライナー２と補強部材９とが一体化された複合部材が形成される。   When the blow is completed, the blow pin 41 is retracted to the outside of the molds K and K and removed. Thus, a composite member in which the resin liner 2 and the reinforcing member 9 are integrated is formed.

口金部材設置工程では、シール受け溝２３に第一シール部材７を配置しつつ、樹脂ライナー２のネック部２ｃに口金部材３を設置する。   In the cap member installation step, the cap member 3 is installed on the neck portion 2 c of the resin liner 2 while the first seal member 7 is disposed in the seal receiving groove 23.

繊維強化樹脂層成形工程では、例えば、フィラメントワインディング法により、樹脂ライナー２及び口金部材３の外周に、繊維強化樹脂層５を形成する。   In the fiber reinforced resin layer forming step, the fiber reinforced resin layer 5 is formed on the outer periphery of the resin liner 2 and the base member 3 by, for example, a filament winding method.

部品取付工程では、シール受け溝２５に第二シール部材８を配置するとともに、バルブ６を口金部材３に螺合する。以上の工程によって、圧力容器１が形成される。   In the component mounting step, the second seal member 8 is disposed in the seal receiving groove 25 and the valve 6 is screwed into the base member 3. The pressure vessel 1 is formed by the above steps.

圧力容器１の製造方法は、前記した工程に限定されるものではない。本実施形態では、ブロー成形によって製造したが、例えば、補強部材９を成形型にインサートした後に、インジェクション成形、回転成形等で製造してもよい。   The manufacturing method of the pressure vessel 1 is not limited to the process described above. In this embodiment, although it manufactured by blow molding, after inserting the reinforcement member 9 in a shaping | molding die, you may manufacture by injection molding, rotational molding, etc., for example.

以上説明した圧力容器１によれば、ネック部２ｃは樹脂製であって突出形成されているため、経年劣化によりへたりやすいが、ネック部２ｃに補強部材９を設けることにより、ネック部２ｃの強度を高めることができる。第一シール部材７は、口金部材３と強度が向上したネック部２ｃとの間に介設されるため、樹脂ライナー２に貯留された気体又は液体のリークを確実に防止することができる。   According to the pressure vessel 1 described above, since the neck portion 2c is made of resin and is formed to protrude, the neck portion 2c is liable to deteriorate due to aging, but by providing the reinforcing member 9 on the neck portion 2c, the neck portion 2c Strength can be increased. Since the first seal member 7 is interposed between the base member 3 and the neck portion 2c with improved strength, it is possible to reliably prevent leakage of gas or liquid stored in the resin liner 2.

特に、第一シール部材７によれば、内圧を受けてネック部２ｃが外側にわずかに傾倒した際に、口金部材３とネック部２ｃとの間でセルフシール構造となるため、高い内圧が作用した場合であっても確実にリークを防止することができる。さらに、口金部材３とバルブ６との間は第二シール部材８で確実にシールすることができる。   In particular, according to the first seal member 7, when the neck portion 2 c is slightly tilted outward due to the internal pressure, a self-sealing structure is formed between the base member 3 and the neck portion 2 c, so that a high internal pressure acts. Even in this case, it is possible to reliably prevent leakage. Further, the gap between the base member 3 and the valve 6 can be reliably sealed with the second seal member 8.

また、本実施形態では、第一シール部材７は、補強部材９と同じ高さ位置に設けられており、ネック部２ｃのうち強度が最も高い部分と口金部材３とで第一シール部材７が挟まれるため、より確実にシールすることができる。なお、「同じ高さ位置」とは、補強部材９の上端及び下端に接する仮想水平線で示された範囲に、第一シール部材７が接する位置を意味する。   Moreover, in this embodiment, the 1st seal member 7 is provided in the same height position as the reinforcement member 9, and the 1st seal member 7 consists of the part with the highest intensity | strength among the neck parts 2c, and the nozzle | cap | die member 3. Since it is pinched, it can seal more reliably. The “same height position” means a position where the first seal member 7 is in contact with a range indicated by a virtual horizontal line in contact with the upper end and the lower end of the reinforcing member 9.

また、本実施形態による圧力容器の製造方法によれば、ブローピン４１の段差部４４に補強部材９を配置してブロー成形するだけでよいため、作業手間や製造コストを削減することができる。また、本実施形態のように補強部材９に位置決め部３６を設けることにより、ブローピン４１に対する補強部材９の位置が一定になるため、ネック部２ｃに精度よく補強部材９を設けることができる。   In addition, according to the method for manufacturing a pressure vessel according to the present embodiment, it is only necessary to arrange the reinforcing member 9 on the stepped portion 44 of the blow pin 41 and perform blow molding, so that labor and manufacturing costs can be reduced. Moreover, since the position of the reinforcing member 9 with respect to the blow pin 41 becomes constant by providing the positioning member 36 in the reinforcing member 9 as in the present embodiment, the reinforcing member 9 can be provided on the neck portion 2c with high accuracy.

[第二実施形態]
次に、図５を参照して本発明の第二実施形態に係る圧力容器１Ａについて説明する。第二実施形態では、主に、第二シール部材８の配置位置が第一実施形態と相違する。バルブ６の大径部３１の下部（押え部３２よりも下側）にはシール受け溝２６が形成されている。第二シール部材８は、シール受け溝２６に配置されることにより、バルブ６と口金部材３との間をシールする。第二実施形態に係る圧力容器１Ａであっても、第一実施形態と同様の効果を奏することができる。 [Second Embodiment]
Next, a pressure vessel 1A according to a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the arrangement position of the second seal member 8 is mainly different from the first embodiment. A seal receiving groove 26 is formed below the large diameter portion 31 of the valve 6 (below the pressing portion 32). The second seal member 8 seals between the valve 6 and the base member 3 by being disposed in the seal receiving groove 26. Even in the pressure vessel 1A according to the second embodiment, the same effects as those of the first embodiment can be obtained.

［第三実施形態］
次に、図６を参照して本発明の第三実施形態に係る圧力容器１Ｂについて説明する。第三実施形態では、主に、バルブ６に第三シール部材１０を設ける点で第一実施形態と相違する。 [Third embodiment]
Next, a pressure vessel 1B according to a third embodiment of the present invention will be described with reference to FIG. The third embodiment is different from the first embodiment mainly in that a third seal member 10 is provided on the valve 6.

バルブ６の小径部３３の外周には、全周に亘ってシール受け溝５１が形成されている。シール受け溝５１には、第三シール部材１０が配置されており、バルブ６と樹脂ライナー２のネック部２ｃとの間をシールする。   A seal receiving groove 51 is formed on the outer periphery of the small diameter portion 33 of the valve 6 over the entire periphery. The third seal member 10 is disposed in the seal receiving groove 51, and seals between the valve 6 and the neck portion 2 c of the resin liner 2.

第三実施形態に係る圧力容器１Ｂによれば、内圧を受けてへたりやすいネック部２ｃに補強部材９を設けることにより、ネック部２ｃの強度を高めることができる。また、第三シール部材１０は、バルブ６と強度が向上したネック部２ｃとの間に介設されるため、樹脂ライナー２に貯留された気体又は液体のリークを確実に防止することができる。また、一つのシール部材で、樹脂ライナー２に貯留された気体又は液体のリークを確実に防止することができるため、部品点数を減らすことができる。   According to the pressure vessel 1 </ b> B according to the third embodiment, the strength of the neck portion 2 c can be increased by providing the reinforcing member 9 on the neck portion 2 c that easily receives the internal pressure. Further, since the third seal member 10 is interposed between the valve 6 and the neck portion 2c having improved strength, it is possible to reliably prevent leakage of gas or liquid stored in the resin liner 2. In addition, the leak of gas or liquid stored in the resin liner 2 can be reliably prevented with one seal member, so that the number of parts can be reduced.

また、第三シール部材１０は、補強部材９と同じ高さ位置に設けられており、ネック部２ｃのうち強度が最も高い部分とバルブ６とで第三シール部材１０が挟まれるため、より確実にシールすることができる。   In addition, the third seal member 10 is provided at the same height as the reinforcing member 9, and the third seal member 10 is sandwiched between the highest strength portion of the neck portion 2 c and the valve 6. Can be sealed.

なお、第一実施形態の構造に、第三実施形態のように第三シール部材１０を設けるようにしてもよい。   In addition, you may make it provide the structure of 1st embodiment with the 3rd seal member 10 like 3rd embodiment.

以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲において適宜設計変更が可能である。例えば、図７の（ａ）に示す第一変形例のように、補強部材９Ａを円筒状（断面視矩形）としてもよい。また、具体的な図示は省略するが、第三実施形態のようにバルブ６とネック部２ｃの間に第三シール部材１０を設けた構造に、補強部材９Ａを用いてもよい。   Although the embodiments of the present invention have been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, as in the first modification shown in FIG. 7A, the reinforcing member 9A may have a cylindrical shape (a rectangular shape in cross section). Further, although not specifically shown, the reinforcing member 9A may be used in a structure in which the third seal member 10 is provided between the valve 6 and the neck portion 2c as in the third embodiment.

また、図７の（ｂ）に示す第二変形例のように、補強部材９Ｂを断面視Ｔ字状としてもよい。補強部材９は、鉛直方向に延設された円筒状の本体部３５Ｂと、本体部３５Ｂの上端に水平方向に延設された位置決め部３６Ｂとで構成されている。位置決め部３６Ｂは、ネック部２ｃの板厚と同じ幅になっている。位置決め部３６Ｂがバルブ６の小径部３３と口金部材３とに当接する。また、具体的な図示は省略するが、第三実施形態のようにバルブ６とネック部２ｃの間に第三シール部材１０を設けた構造に、補強部材９Ｂを用いてもよい。   Further, as in the second modification shown in FIG. 7B, the reinforcing member 9B may have a T-shape in cross section. The reinforcing member 9 includes a cylindrical main body portion 35B extending in the vertical direction and a positioning portion 36B extending in the horizontal direction at the upper end of the main body portion 35B. The positioning portion 36B has the same width as the thickness of the neck portion 2c. The positioning portion 36 </ b> B contacts the small diameter portion 33 of the valve 6 and the base member 3. Further, although not specifically shown, the reinforcing member 9B may be used in a structure in which the third seal member 10 is provided between the valve 6 and the neck portion 2c as in the third embodiment.

また、図８の（ａ）に示す第三変形例のように、口金部材３の突出部２２の内周面にシール受け溝２３Ａ，２３Ｂを形成し、第一シール部材７Ａ，７Ｂを設けるようにしてもよい。つまり、シール部材を複数個設定してもよい。具体的な図示は省略するが、第三実施形態に係る構成において、第三シール部材１０を複数個設置してもよい。   Further, as in the third modified example shown in FIG. 8A, seal receiving grooves 23A and 23B are formed on the inner peripheral surface of the protruding portion 22 of the base member 3, and the first seal members 7A and 7B are provided. It may be. That is, a plurality of seal members may be set. Although not specifically shown, a plurality of third seal members 10 may be installed in the configuration according to the third embodiment.

また、図８の（ｂ）に示す第四変形例のように、口金部材３の突出部２２の内周面にシール受け溝２３を形成し、第一シール部材７とバックアップリング６１を設けるようにしてもよい。バックアップリング６１を設けることで、第一シール部材７の位置ずれを防止することができる。また、具体的な図示は省略するが、第三実施形態に係る構成において、第三シール部材１０に隣接させてバックアップリング６１を設けてもよい。   Further, as in the fourth modification shown in FIG. 8B, the seal receiving groove 23 is formed on the inner peripheral surface of the protruding portion 22 of the base member 3, and the first seal member 7 and the backup ring 61 are provided. It may be. By providing the backup ring 61, it is possible to prevent the first seal member 7 from being displaced. Although not shown in the drawings, the backup ring 61 may be provided adjacent to the third seal member 10 in the configuration according to the third embodiment.

また、図９に示す第五変形例のように、口金部材３の突出部２２に、先細りとなるように、ネック部２ｃの中心軸Ｃ方向に傾斜する傾斜部２２ａを設けてもよい。圧力容器１に内圧が作用すると、口金部材３のフランジ部２１に応力が集中し、樹脂ライナー２から口金部材３が離脱するおそれがある。しかし、突出部２２に傾斜部２２ａを設けることでこの応力を傾斜部２２ａにも分散させることができる。また、フランジ部２１と傾斜部２２ａとを繊維強化樹脂層５で押さえ込むことができるため、口金部材３の離脱をより効果的に防ぐことができる。   Moreover, you may provide the inclination part 22a which inclines in the central-axis C direction of the neck part 2c so that it may taper in the protrusion part 22 of the nozzle | cap | die member 3 like the 5th modification shown in FIG. When the internal pressure acts on the pressure vessel 1, stress concentrates on the flange portion 21 of the base member 3, and the base member 3 may be detached from the resin liner 2. However, this stress can be dispersed also in the inclined portion 22a by providing the inclined portion 22a in the protruding portion 22. Moreover, since the flange part 21 and the inclination part 22a can be pressed down with the fiber reinforced resin layer 5, the separation | separation of the nozzle | cap | die member 3 can be prevented more effectively.

また、前記した実施形態及び変形例では、ネック部２ｃの先端に補強部材９の一部が露出する構成であったが、図１０に示す第六変形例のように、ネック部２ｃの基端側にセットバックした位置に補強部材９Ｃを設ける構成としてもよい。補強部材９は、筒状を呈し、ネック部２ｃの周方向に亘って形成されている。補強部材９の断面形状はＬ字状になっている。   In the embodiment and the modification described above, a part of the reinforcing member 9 is exposed at the tip of the neck 2c. However, as in the sixth modification shown in FIG. 10, the base end of the neck 2c. It is good also as a structure which provides the reinforcement member 9C in the position set back to the side. The reinforcing member 9 has a cylindrical shape and is formed over the circumferential direction of the neck portion 2c. The cross-sectional shape of the reinforcing member 9 is L-shaped.

図１１は、第六変形例に係る圧力容器の製造方法を示す図であって、（ａ）はブロー前、（ｂ）はブロー後を示す。図１１の（ａ）に示すように、第六変形例における配置工程では、ボールカプラ式のブローピン７０に補強部材９Ｃを配置する。ブローピン７０は、筒状のインナー部７１と、インナー部７１を内装する筒状のアウター部７２とを備えて構成されている。インナー部７１は、アウター部７２に対して軸方向にスライド可能になっている。アウター部７２は、大径部７２ａと、小径部７２ｂとを備えている。小径部７２ｂには、ボールＢが配置される貫通孔７２ｃが形成されている。   FIGS. 11A and 11B are diagrams showing a pressure vessel manufacturing method according to a sixth modification, in which FIG. 11A shows before blowing, and FIG. 11B shows after blowing. As shown in FIG. 11A, the reinforcing member 9C is arranged on the ball coupler type blow pin 70 in the arrangement step in the sixth modification. The blow pin 70 includes a cylindrical inner portion 71 and a cylindrical outer portion 72 that houses the inner portion 71. The inner portion 71 is slidable in the axial direction with respect to the outer portion 72. The outer part 72 includes a large diameter part 72a and a small diameter part 72b. A through hole 72c in which the ball B is disposed is formed in the small diameter portion 72b.

配置工程では、アウター部７２に補強部材９Ｃを挿入した後、インナー部７１をアウター部７２に対して進入させる。ボールＢは、インナー部７１の外周面によって外側に押され、ボールＢの一部が補強部材９Ｃの孔部８１に係合する。これにより、ブローピン７０に対して補強部材９Ｃが保持される。   In the arranging step, after inserting the reinforcing member 9 </ b> C into the outer portion 72, the inner portion 71 is caused to enter the outer portion 72. The ball B is pushed outward by the outer peripheral surface of the inner portion 71, and a part of the ball B engages with the hole 81 of the reinforcing member 9C. Thereby, the reinforcing member 9 </ b> C is held with respect to the blow pin 70.

ブロー工程では、図１１の（ｂ）に示すように、成形型Ｋとブローピン７０のインナー部７１とで囲まれた部分に樹脂が充填されることによりブロー成形される。第六変形例では、空間Ｑが成形型Ｋと補強部材９Ｃと小径部７２ｂとで囲まれているため、空間Ｑにも樹脂がスムーズに充填する。   In the blowing process, as shown in FIG. 11B, blow molding is performed by filling a portion surrounded by the molding die K and the inner portion 71 of the blow pin 70 with resin. In the sixth modification, since the space Q is surrounded by the molding die K, the reinforcing member 9C, and the small diameter portion 72b, the space Q is filled with the resin smoothly.

ブロー工程が終わったら、成形型Ｋからブローピン７０を引き抜く。この際、ブローピン７０のインナー部７１をアウター部７２に対して後退させる。これにより、補強部材９Ｃの孔部８１からボールＢが外れるため、補強部材９Ｃとブローピン７０との係合状態を解除することができる。   When the blow process is finished, the blow pin 70 is pulled out from the mold K. At this time, the inner part 71 of the blow pin 70 is moved backward with respect to the outer part 72. Thereby, since the ball B is detached from the hole 81 of the reinforcing member 9C, the engaged state between the reinforcing member 9C and the blow pin 70 can be released.

樹脂の流動のコントロールは非常に困難であり、例えば補強部材が複雑な形状である場合等は、キャビティの細部に樹脂が入り込まない可能性がある。このような場合は、キャビティの細部に樹脂が入りやすくするために、補強部材を予め温めるプレヒート処理を行う必要がある。しかし、第六変形例に係る製造方法によれば、周囲が包囲された空間Ｑにスムーズに樹脂が入り込むため、プレヒート処理を省略することが可能となる。なお、第六変形例では、ボールカプラ式によって補強部材９Ｃをブローピン７０に保持させたが、ブローピン７０に対して容易に着脱可能であれば他の係合形態であってもよい。   It is very difficult to control the flow of the resin. For example, when the reinforcing member has a complicated shape, the resin may not enter the details of the cavity. In such a case, it is necessary to perform a preheating process in which the reinforcing member is preheated so that the resin can easily enter the details of the cavity. However, according to the manufacturing method according to the sixth modified example, since the resin smoothly enters the space Q surrounded by the surrounding area, the preheating process can be omitted. In the sixth modification, the reinforcing member 9C is held on the blow pin 70 by a ball coupler type, but other engagement forms may be used as long as it can be easily attached to and detached from the blow pin 70.

また、図２の第一実施形態の第一シール部材７は、口金部材３に形成されたシール受け溝２３に配置されているが、ネック部２ｃ側にシール受け溝を設けてもよい。また、第一実施形態の第二シール部材８は、口金部材３に形成されたシール受け溝２５に配置されているが、バルブ６側にシール受け溝を設けてもよい。   Moreover, although the 1st seal member 7 of 1st embodiment of FIG. 2 is arrange | positioned at the seal | sticker receiving groove 23 formed in the nozzle | cap | die member 3, you may provide a seal | sticker receiving groove in the neck part 2c side. Moreover, although the 2nd seal member 8 of 1st embodiment is arrange | positioned at the seal | sticker receiving groove 25 formed in the nozzle | cap | die member 3, you may provide a seal | sticker receiving groove in the valve | bulb 6 side.

１ 圧力容器
２ 樹脂ライナー
２ａ 胴部
２ｂ 肩部
２ｃ ネック部
３ 口金部材
５ 繊維強化樹脂層（補強層）
６ バルブ（取付部材）
７ 第一シール部材
８ 第二シール部材
９ 補強部材
１０ 第三シール部材
２１ フランジ部
３１ （バルブの）大径部
３２ 押え部
３３ （バルブの）小径部
３５ 本体部
３６ 位置決め部
４１ ブローピン
４２ （ブローピンの）大径部
４３ （ブローピンの）小径部
４４ 段差部
Ｋ 成形型
Ｐ パリソン 1 Pressure Vessel 2 Resin Liner 2a Body 2b Shoulder 2c Neck 3 Cap Member 5 Fiber Reinforced Resin Layer (Reinforcement Layer)
6 Valve (Mounting member)
7 First seal member 8 Second seal member 9 Reinforcing member 10 Third seal member 21 Flange portion 31 Large diameter portion (of valve) 32 Holding portion 33 Small diameter portion of (valve) 35 Main body portion 36 Positioning portion 41 Blow pin 42 (Blow pin 42 Large-diameter portion 43 small-diameter portion (of blow pin) 44 stepped portion K molding die P parison

Claims (7)

突出する筒状のネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、
前記ネック部の外側に設けられた口金部材と、
前記ネック部及び前記口金部材の内側に挿入された取付部材と、
前記樹脂ライナー及び前記口金部材の外側を覆う補強層と、
前記ネック部と前記口金部材との間に介設された第一シール部材と、
前記口金部材と前記取付部材との間に介設された第二シール部材と、
前記ネック部の周方向に亘って設けられた補強部材と、を有することを特徴とする圧力容器。 A hollow resin liner having a protruding cylindrical neck portion and containing gas or liquid;
A base member provided outside the neck portion;
An attachment member inserted inside the neck portion and the base member;
A reinforcing layer covering the outside of the resin liner and the base member;
A first seal member interposed between the neck portion and the base member;
A second seal member interposed between the base member and the mounting member;
And a reinforcing member provided along the circumferential direction of the neck portion. 前記第一シール部材は、前記補強部材と同じ高さ位置に設けられていることを特徴とする請求項１に記載の圧力容器。   The pressure vessel according to claim 1, wherein the first seal member is provided at the same height as the reinforcing member. 突出する筒状のネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、
前記ネック部の外側に設けられた口金部材と、
前記ネック部及び前記口金部材の内側に挿入された取付部材と、
前記樹脂ライナー及び前記口金部材の外側を覆う補強層と、
前記ネック部と前記取付部材との間に介設された第三シール部材と、
前記ネック部の周方向に亘って設けられた補強部材と、を有することを特徴とする圧力容器。 A hollow resin liner having a protruding cylindrical neck portion and containing gas or liquid;
A base member provided outside the neck portion;
An attachment member inserted inside the neck portion and the base member;
A reinforcing layer covering the outside of the resin liner and the base member;
A third seal member interposed between the neck portion and the mounting member;
And a reinforcing member provided along the circumferential direction of the neck portion. 前記第三シール部材は、前記補強部材と同じ高さ位置に設けられていることを特徴とする請求項３に記載の圧力容器。   The pressure vessel according to claim 3, wherein the third seal member is provided at the same height as the reinforcing member. 前記口金部材は、リング状のフランジ部と、前記フランジ部から突出する筒状の突出部と、を有し、
前記突出部は、先細りとなるように前記ネック部の中心軸方向に傾斜する傾斜部を備えていることを特徴とする請求項１乃至４のいずれか一項に記載の圧力容器。 The base member has a ring-shaped flange portion, and a cylindrical projecting portion projecting from the flange portion,
The pressure container according to any one of claims 1 to 4, wherein the protruding portion includes an inclined portion that is inclined in a direction of a central axis of the neck portion so as to be tapered. ブローピンに補強部材を配置する配置工程と、
一対の成形型の間にパリソンを供給するパリソン供給工程と、
前記成形型を閉じつつこれらの成形型によって形成された空間に前記ブローピン及び前記補強部材を挿入する型締め工程と、
前記ブローピンに空気を供給して前記成形型に前記パリソンを転写させるブロー工程と、を含み、
前記ブローピンは、大径部と、前記大径部の先端側に設けられた小径部と、前記大径部と前記小径部によって形成された段差部とを備え、
前記配置工程では、前記補強部材を前記段差部に配置させ、
前記ブロー工程では、前記段差部と前記小径部と前記成形型とで囲まれた空間にパリソンを充填させることを特徴とする圧力容器の製造方法。 An arrangement step of arranging a reinforcing member on the blow pin;
A parison supply step of supplying a parison between a pair of molds;
A mold clamping step of inserting the blow pin and the reinforcing member into a space formed by these molds while closing the mold;
A blow step of supplying air to the blow pin to transfer the parison to the mold, and
The blow pin includes a large diameter portion, a small diameter portion provided on a distal end side of the large diameter portion, and a step portion formed by the large diameter portion and the small diameter portion,
In the arranging step, the reinforcing member is arranged on the stepped portion,
In the blow step, a space surrounded by the stepped portion, the small diameter portion, and the mold is filled with a parison. 前記補強部材は、円筒状を呈する本体部と、前記本体部から内側に向けて突出する位置決め部とを備え、
前記配置工程では、前記小径部に前記位置決め部を当接させることを特徴とする請求項６に記載の圧力容器の製造方法。 The reinforcing member includes a main body portion that has a cylindrical shape, and a positioning portion that protrudes inward from the main body portion,
The method for manufacturing a pressure vessel according to claim 6, wherein in the arranging step, the positioning portion is brought into contact with the small diameter portion.
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