JP2001050494A - Pressure-resistant container - Google Patents

Pressure-resistant container

Info

Publication number
JP2001050494A
JP2001050494A JP11227783A JP22778399A JP2001050494A JP 2001050494 A JP2001050494 A JP 2001050494A JP 11227783 A JP11227783 A JP 11227783A JP 22778399 A JP22778399 A JP 22778399A JP 2001050494 A JP2001050494 A JP 2001050494A
Authority
JP
Japan
Prior art keywords
container
port member
pressure
inner cylinder
neck
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP11227783A
Other languages
Japanese (ja)
Inventor
Kazuhiko Kagawa
和彦 香川
Makoto Saito
誠 斉藤
Hiroki Nakayama
浩樹 中山
Mitsuo Nanba
三男 難波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
High Pressure Gas Safety Institute of Japan
Mitsubishi Chemical Corp
Kobe Steel Ltd
Original Assignee
High Pressure Gas Safety Institute of Japan
Mitsubishi Chemical Corp
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by High Pressure Gas Safety Institute of Japan, Mitsubishi Chemical Corp, Kobe Steel Ltd filed Critical High Pressure Gas Safety Institute of Japan
Priority to JP11227783A priority Critical patent/JP2001050494A/en
Publication of JP2001050494A publication Critical patent/JP2001050494A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305Bosses, e.g. boss collars

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a light weight pressure-resistant container mainly made of synthetic resin that can reduce the deformation of a port member as a mouth ring for attaching a container valve attaching member or a container valve and can raise the sealing in the port member. SOLUTION: This pressure-resistant container is provided with a container main body 1 consisting of an inner cylinder 2 with gas barrier feature and a synthetic resin outer cover 3 to display pressure-resistant strength, a port member 4 established at the end part of the container main body and a container valve attaching member 5 or a container valve attached on the port member. The container valve attaching member 5 or container valve has a cylindrical insert port 55 to be inserted into the port member 4. It reinforces the port member 4 from the inside through the insert part 55 when it is fastened to the port member 4.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、耐圧容器に関する
ものであり、詳しくは、主に合成樹脂によって構成さ
れ、天然ガス、酸素、窒素などの圧縮ガスや液化石油ガ
スが充填される軽量の耐圧容器であって、容器弁取付部
材または容器弁が取り付けられるポート部の変形を一層
低減でき、ポート部におけるシール性をより高め得る様
に改良された耐圧容器に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-resistant container, and more particularly, to a lightweight pressure-resistant container mainly composed of a synthetic resin and filled with a compressed gas such as natural gas, oxygen or nitrogen, or a liquefied petroleum gas. The present invention relates to a pressure-resistant container improved so that deformation of a container valve mounting member or a port portion to which the container valve is mounted can be further reduced, and sealing performance at the port portion can be further improved.

【0002】[0002]

【従来の技術】天然ガス、酸素、窒素などの圧縮ガスや
液化石油ガスを充填する容器として、主に合成樹脂によ
って構成された軽量な容器が提案されている。例えば、
特公平5−88665号公報には、プラスチック製内筒
の外周を補強繊維シートで覆った後、その上にフィラメ
ントワインディング法により繊維強化プラスチック層を
形成する「複合材料ボンベの製造方法」が記載されてい
る。斯かるボンベにおいては、容器弁を取付けるための
口金と内筒の結合部におけるシール性が重要であり、そ
して、シール性を保持するには、口金装着部における内
圧による内筒の変形を防止する必要がある。
2. Description of the Related Art As a container for filling a compressed gas such as natural gas, oxygen, nitrogen or the like, or a liquefied petroleum gas, a lightweight container mainly composed of a synthetic resin has been proposed. For example,
In Japanese Patent Publication No. 5-88665, there is described a "method of manufacturing a composite material cylinder" in which an outer periphery of a plastic inner cylinder is covered with a reinforcing fiber sheet, and a fiber reinforced plastic layer is formed thereon by a filament winding method. ing. In such a cylinder, the sealing property at the joint between the base and the inner cylinder for mounting the container valve is important, and in order to maintain the sealing property, the inner cylinder is prevented from being deformed due to the internal pressure at the base mounting part. There is a need.

【0003】本発明者等は、多層構造を有する軽量容器
であって、口金装着部における内圧による変形がなく、
口金と内筒の結合部におけるシール性に優れた容器を種
々検討し、特開平11−44399号公報に「耐圧容
器」として先に開示している。図7は、特開平11−4
4399号公報に記載の従来の耐圧容器における口金装
着部を示す縦断面図である。
[0003] The inventors of the present invention provide a lightweight container having a multi-layer structure, which is free from deformation due to internal pressure in a base mounting portion.
Various containers having excellent sealing properties at the joint portion between the base and the inner cylinder have been studied, and disclosed as a “pressure-resistant container” in Japanese Patent Application Laid-Open No. 11-44399. FIG.
It is a longitudinal cross-sectional view which shows the base mounting part in the conventional pressure-resistant container described in 4399 gazette.

【0004】図7に示す耐圧容器は、ガスバリア性を有
する内筒(2)及び合成樹脂製の外套(3)から成る容
器本体(1)の一端にポート部材(4)及び容器弁取付
部材(9)を口金として設けた略円筒状の容器である。
ポート部材(4)は、内筒(2)と外套(3)の間に埋
設された基底部(41)、当該基底部から略垂直に立上
げられた首部(42)、および、当該首部の外周側に付
設されたフランジ(43)を備えている。
The pressure-resistant container shown in FIG. 7 has a port member (4) and a container valve mounting member (1) at one end of a container body (1) comprising an inner cylinder (2) having a gas barrier property and a jacket (3) made of synthetic resin. This is a substantially cylindrical container provided with 9) as a base.
The port member (4) includes a base (41) embedded between the inner cylinder (2) and the mantle (3), a neck (42) raised substantially vertically from the base, and a A flange (43) is provided on the outer peripheral side.

【0005】容器本体(1)の内筒(2)は、ポート部
材(4)の基底部(41)内面からポート部材(4)の
先端面まで連続して形成され、容器弁取付部材(9)
は、ポート部材(4)の先端面まで張出された内筒
(2)との間にシール材(6)を介在させ、フランジ
(93)に挿通したボルト・ナットよりポート部材
(4)のフランジ(43)に気密に締結される。斯かる
容器においては、薄肉に形成された内筒(2)の外部へ
の突出部分をポート部材(4)によって補強することに
より、前記の突出部分の拡径する方向への内圧による変
形を防止している。
The inner cylinder (2) of the container body (1) is formed continuously from the inner surface of the base portion (41) of the port member (4) to the distal end surface of the port member (4). )
The seal member (6) is interposed between the port member (4) and the inner cylinder (2) protruding up to the tip end surface of the port member (4). It is airtightly fastened to the flange (43). In such a container, the projection of the thin-walled inner cylinder (2) to the outside is reinforced by the port member (4), so that the projection is prevented from being deformed by the internal pressure in the direction in which the diameter increases. are doing.

【0006】[0006]

【発明が解決しようとする課題】ところで、図7に示す
耐圧容器のメンテナンス等においては、ポート部材
(4)と容器弁取付部材(9)の気密性の確保のために
ボルト・ナットを増し締めしたり、シール材(6)の交
換のために締め直すことがある。その際、ボルト・ナッ
トによる締付力は、ポート部材(4)のフランジ(4
3)を潰す方向に作用するため、ポート部材(4)にお
いては、首部(42)の先端側が径方向内側に変形し、
首部(42)の先端面の平坦度が損なわれることがあ
る。その結果、大きな力で締付けたにも拘わらず、十分
な気密性が得られない場合がある。
By the way, in maintenance of the pressure-resistant container shown in FIG. 7, bolts and nuts are additionally tightened to secure airtightness between the port member (4) and the container valve mounting member (9). Or it may be retightened to replace the sealing material (6). At this time, the tightening force of the bolt and nut is applied to the flange (4) of the port member (4).
In order to act in the direction of crushing 3), in the port member (4), the tip side of the neck (42) is deformed radially inward,
The flatness of the tip surface of the neck (42) may be impaired. As a result, sufficient airtightness may not be obtained in spite of being tightened with a large force.

【0007】本発明は、上記の実情に鑑みなされたもの
であり、その目的は、主に合成樹脂によって構成され、
天然ガス、酸素、窒素などの圧縮ガスや液化石油ガスが
充填される軽量の耐圧容器であって、容器弁取付部材ま
たは容器弁が取り付けられる口金としてのポート部材の
変形を一層低減でき、ポート部材におけるシール性をよ
り高め得る様に改良された耐圧容器を提供することにあ
る。
[0007] The present invention has been made in view of the above-mentioned circumstances, and an object thereof is mainly constituted by a synthetic resin.
A lightweight pressure-resistant container filled with a compressed gas such as natural gas, oxygen, or nitrogen, or liquefied petroleum gas, which can further reduce the deformation of a container valve mounting member or a port member as a mouthpiece to which the container valve is mounted. An object of the present invention is to provide an improved pressure-resistant container capable of further improving the sealing property in the above.

【0008】[0008]

【課題を解決するための手段】上記の課題を解決するた
め、本発明の耐圧容器は、液化ガス又は圧縮ガスを充填
するための略円筒状の耐圧容器であって、ガスバリア性
を有する内筒および耐圧強度を発揮する合成樹脂製の外
套から成る多層構造の容器本体と、当該容器本体の端部
に設けられたポート部材と、当該ポート部材に装着され
た容器弁取付部材または容器弁とから構成され、前記ポ
ート部材は、略円環状に拡張され且つ容器本体の端部に
おいて前記内筒と前記外套の間に埋設された基底部と、
前記外套を貫通する高さまで前記基底部から略垂直に立
上げられた首部と、当該首部の外周側に付設された締結
手段とを備え、容器本体の前記内筒は、容器本体の端部
において前記ポート部材の基底部内面から首部の内面お
よび先端面を覆う状態に連続して形成され、前記容器弁
取付部材または容器弁は、前記の締結手段に締結される
被締結手段と、前記ポート部材の首部に略緊密に挿入さ
れる円筒状の挿入部とを有し、そして、前記ポート部材
に対し、前記首部の先端面に露出する内筒の張出部との
間に挿入されたシール材を介し且つ前記首部へ前記挿入
部を挿入させた状態で締結されていることを特徴とす
る。
In order to solve the above-mentioned problems, a pressure-resistant container of the present invention is a substantially cylindrical pressure-resistant container for filling a liquefied gas or a compressed gas, and has an inner cylinder having a gas barrier property. And a container body having a multilayer structure composed of a synthetic resin jacket exhibiting pressure resistance, a port member provided at an end of the container body, and a container valve mounting member or a container valve attached to the port member. The port member is configured to be substantially annularly expanded and a base buried between the inner cylinder and the outer jacket at an end of the container body;
The neck includes a neck raised substantially vertically from the base to a height that penetrates the outer jacket, and fastening means attached to an outer peripheral side of the neck.The inner cylinder of the container main body is provided at an end of the container main body. The container valve mounting member or the container valve is formed continuously so as to cover the inner surface and the distal end surface of the neck portion from the inner surface of the base portion to the inner surface of the neck portion. And a sealing member inserted between the port member and the projecting portion of the inner cylinder exposed at the tip end surface of the neck portion with respect to the port member. And the fastener is fastened in a state where the insertion portion is inserted into the neck portion.

【0009】すなわち、上記の耐圧容器において、ポー
ト部材は、容器本体の端部において内筒と外套の間に基
底部が埋設され、基底部から略垂直に立上げられた首部
によって容器本体の内筒の突出部分を補強する様になさ
れているため、容器本体の内筒の突出部分がガスの内圧
によって拡径する方向へ変形するのを防止する。また、
ポート部材の首部へ挿入部を挿入させた容器弁取付部材
または容器弁の締結構造は、ポート部材に容器弁取付部
材を締結した際、ポート部材の首部の先端側を内側から
補強する様に機能し、ポート部材の締結手段に作用する
締結力によってポート部材の首部が径方向内側へ変形す
るのを防止する。
That is, in the above pressure-resistant container, the port member has a base buried between the inner cylinder and the jacket at the end of the container main body, and the port member is formed inside the container main body by a neck rising substantially vertically from the base. Since the protruding portion of the cylinder is reinforced, it is possible to prevent the protruding portion of the inner cylinder of the container body from being deformed in a direction to increase in diameter by the internal pressure of the gas. Also,
The fastening structure of the container valve mounting member or the container valve in which the insertion portion is inserted into the neck portion of the port member functions to reinforce the distal end side of the neck portion of the port member from the inside when the container valve mounting member is fastened to the port member. The neck portion of the port member is prevented from being deformed radially inward by the fastening force acting on the fastening means of the port member.

【0010】[0010]

【発明の実施の形態】本発明に係る耐圧容器の実施形態
を図面に基づいて説明する。図1は、本発明の耐圧容器
における端部の構造を示す部分的な縦断面図である。図
2は、図1の主要部を拡大した図であり、ポート部材と
内筒の係合構造およびポート部材と容器弁取付部材の締
結構造を示す縦断面図である。図3及び図4は、図1の
主要部を拡大した図であり、ポート部材の基底部の好ま
しい形態を示す縦断面図である。図5は、ポート部材と
容器弁取付部材の他の態様を示す部分的な縦断面図であ
る。図6は、ポート部材と容器弁取付部材の更に他の態
様を示す部分的な縦断面図である。なお、図1〜図6
中、従来の耐圧容器と同様の構成は図7と同様の符号で
示す。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pressure vessel according to the present invention will be described with reference to the drawings. FIG. 1 is a partial longitudinal sectional view showing the structure of the end portion of the pressure-resistant container of the present invention. FIG. 2 is an enlarged view of a main part of FIG. 1 and is a longitudinal sectional view showing an engagement structure between a port member and an inner cylinder and a fastening structure between a port member and a container valve mounting member. 3 and 4 are enlarged views of a main part of FIG. 1 and are longitudinal sectional views showing a preferred form of a base part of the port member. FIG. 5 is a partial longitudinal sectional view showing another mode of the port member and the container valve mounting member. FIG. 6 is a partial longitudinal sectional view showing still another mode of the port member and the container valve mounting member. 1 to 6
The same components as those in the conventional pressure-resistant container are denoted by the same reference numerals as those in FIG.

【0011】本発明の耐圧容器は、液化ガス又は圧縮ガ
スを充填するための略円筒状の耐圧容器であり、図1に
示す様に、ガスバリア性を有する内筒(2)及び耐圧強
度を発揮する合成樹脂製の外套(3)から成る多層構造
の容器本体(1)と、当該容器本体の端部に設けられた
ポート部材(4)と、当該ポート部材に装着された容器
弁取付部材(5)又は容器弁とから主に構成される。
The pressure-resistant container of the present invention is a substantially cylindrical pressure-resistant container for filling a liquefied gas or a compressed gas. As shown in FIG. 1, an inner cylinder (2) having gas barrier properties and exhibiting pressure-resistant strength are provided. A container body (1) having a multilayer structure comprising a synthetic resin jacket (3), a port member (4) provided at an end of the container body, and a container valve mounting member ( 5) or a container valve.

【0012】内筒(2)は、例えば、アルミニウム合金
やマグネシウム合金等の軽合金、あるいは、ポリエチレ
ン、架橋ポリエチレン、ポリプロピレン、ポリアミド
類、ABS樹脂、ポリエチレンテレフタレート、ポリブ
チレンテレフタレート、ポリアセタール、ポリカーボネ
ート等のガスバリア性を有する樹脂によって構成され
る。また、内筒(2)は、成形性に優れたポリエチレン
とガスバリア性に優れたポリアミド樹脂または金属など
を組合せることにより、内筒自体が多層に構成されてい
てもよい。更に、強度を高めるため、上記の様なガスバ
リア性の樹脂や金属と繊維強化プラスチック(FRP)
を組合せて構成されていてもよい。
The inner cylinder (2) is made of, for example, a light alloy such as an aluminum alloy or a magnesium alloy, or a gas barrier such as polyethylene, cross-linked polyethylene, polypropylene, polyamides, ABS resin, polyethylene terephthalate, polybutylene terephthalate, polyacetal, and polycarbonate. It is composed of a resin having properties. Further, the inner cylinder (2) may have a multilayer structure by combining polyethylene having excellent moldability and polyamide resin or metal having excellent gas barrier properties. Furthermore, in order to enhance the strength, the above-mentioned gas barrier resin or metal and fiber reinforced plastic (FRP)
May be combined.

【0013】外套(3)は、軽量化を図り且つ必要な耐
圧強度を得るため、通常、繊維強化プラスチックで構成
される。繊維強化プラスチックに適用される樹脂として
は、エポキシ樹脂、不飽和ポリエステル樹脂、ビニルエ
ステル樹脂、フェノール樹脂などの熱硬化性樹脂、ポリ
アミド類、ポリエチレンテレフタレート、ポリブチレン
テレフタレート、ABS樹脂、ポリエーテルケトン、ポ
リフェニレンサルファイド、ポリ−4−メチルペンテン
−1、ポリプロピレンなどの熱可塑性樹脂が挙げられ
る。
The mantle (3) is usually made of fiber reinforced plastic in order to reduce the weight and obtain the necessary pressure resistance. Examples of resins applied to fiber reinforced plastics include thermosetting resins such as epoxy resin, unsaturated polyester resin, vinyl ester resin, and phenol resin, polyamides, polyethylene terephthalate, polybutylene terephthalate, ABS resin, polyetherketone, and polyphenylene. Thermoplastic resins such as sulfide, poly-4-methylpentene-1, and polypropylene are exemplified.

【0014】補強繊維としては、炭素繊維糸、ガラス繊
維糸、有機高弾性率繊維(たとえばポリアラミド繊維)
糸などの高強度、高弾性率の繊維が好適である。また、
これらの補強繊維糸の中では、屈曲による応力集中を小
さくし、ボイドの発生を少なくするという観点から、開
繊性に優れる無撚繊維糸、典型的には炭素繊維糸が好ま
しい。炭素繊維糸を使用した場合は、比強度、比弾性率
に優れ、成形時のワインディングの際の糸切れや毛羽の
発生がほとんどなく、しかも、耐衝撃性能に優れ、生産
性も向上し得る。
As the reinforcing fiber, carbon fiber yarn, glass fiber yarn, organic high modulus fiber (for example, polyaramid fiber)
High-strength, high-modulus fibers such as yarns are preferred. Also,
Among these reinforcing fiber yarns, a non-twisted fiber yarn excellent in fiber opening property, typically a carbon fiber yarn, is preferable from the viewpoint of reducing stress concentration due to bending and reducing generation of voids. When a carbon fiber yarn is used, the yarn has excellent specific strength and specific elastic modulus, hardly any yarn breakage or fluff during winding at the time of molding, and has excellent impact resistance and can improve productivity.

【0015】容器本体(1)の構成材料としては、上記
の様な材料を適宜に組合せることができるが、軽量化を
図り且つ製造コストを低減すると言う観点から、容器本
体(1)の内筒(2)は、合成樹脂によって構成され、
外套(3)は、繊維強化プラスチックによって構成され
るのが好ましい。
As a constituent material of the container body (1), any of the above-mentioned materials can be appropriately combined. However, from the viewpoint of reducing the weight and reducing the manufacturing cost, the container body (1) is made of The tube (2) is made of a synthetic resin,
The mantle (3) is preferably made of fiber-reinforced plastic.

【0016】また、容器本体(1)は、後述する製造方
法により作製されるが、所要の耐圧強度を得るため、円
筒状の胴部の両端を半球状に形成される。そして、容器
本体(1)の一端には、上記ポート部材(4)が取り付
けられる。ポート部材(4)には、容器弁(図示省略)
を直接取り付けることもできるが、ガスの種類や使用態
様に応じて容器弁を選択し得る様に、しかも、容器弁の
保守を容易にするため、一般的には容器弁の取付マウン
トとしての容器弁取付部材(5)が取り付けられる。ま
た、容器本体(1)の他端には、通常、前記と同様のポ
ート部材および封止用の盲プラグが取り付けられる。
The container body (1) is manufactured by a manufacturing method to be described later. In order to obtain a required pressure resistance, both ends of a cylindrical body are formed in a hemispherical shape. The port member (4) is attached to one end of the container body (1). The port member (4) includes a container valve (not shown).
Although it is possible to directly mount the container valve, the container valve is generally mounted as a mounting mount for the container valve so that the container valve can be selected according to the type of gas and the mode of use, and to facilitate maintenance of the container valve. The valve mounting member (5) is mounted. In addition, the same port member and a blind plug for sealing are usually attached to the other end of the container body (1).

【0017】ポート部材(4)及び容器弁取付部材
(5)は、気密性、耐久性に優れ且つより高い成形精度
が得られる点において、アルミニウム、銅、ニッケル、
チタン等の合金、これらの複合材またはクロム・モリブ
デン合金などの金属によって構成されるのが好ましい。
特に、アルミニウムは、軽量で且つ成形性に優れ、製造
コストを低減できるので好ましい材料である。
The port member (4) and the container valve mounting member (5) are made of aluminum, copper, nickel, etc. in that they are excellent in airtightness, durability and higher molding accuracy.
It is preferable to be made of an alloy such as titanium, a composite material of these, or a metal such as a chromium-molybdenum alloy.
In particular, aluminum is a preferable material because it is lightweight, has excellent moldability, and can reduce manufacturing cost.

【0018】また、ポート部材(4)及び容器弁取付部
材(5)は、比較的硬質の合成樹脂によって構成されて
いてもよい。合成樹脂としては、ナイロン6、ナイロン
66、ナイロン12、ポリエチレンテレフタレート、ポ
リブチレンテレフタレート、ポリメチルペンテン、ポリ
カーボネート、変性ポリフェニレンオキサイド、ポリエ
ーテルスルホン、ポリフェニレンスルフィド、ポリアリ
レート、ポリエーテルイミド、ポリエーテルエーテルケ
トン、ポリイミド、ポリアミドイミド、ポリオキシベン
ジレン、ポリスルホンなどが挙げられる。
The port member (4) and the container valve mounting member (5) may be made of a relatively hard synthetic resin. As the synthetic resin, nylon 6, nylon 66, nylon 12, polyethylene terephthalate, polybutylene terephthalate, polymethylpentene, polycarbonate, modified polyphenylene oxide, polyether sulfone, polyphenylene sulfide, polyarylate, polyetherimide, polyetheretherketone, Examples include polyimide, polyamide imide, polyoxybenzylene, and polysulfone.

【0019】ポート部材(4)は、略円環状に拡張され
且つ容器本体(1)の一端において内筒(2)と外套
(3)の間に埋設された基底部(41)と、外套(3)
を貫通する高さまで基底部(41)から略垂直に立上げ
られた首部(42)と、当該首部の外周側に付設された
締結手段としてフランジ(43)とを備えている。
The port member (4) has a base portion (41) which is expanded in a substantially annular shape and is embedded between the inner cylinder (2) and the outer jacket (3) at one end of the container body (1); 3)
And a flange (43) as a fastening means attached to the outer peripheral side of the neck, the neck (42) rising substantially vertically from the base (41) to a height that penetrates the neck.

【0020】具体的には、ポート部材(4)は、凡そ鍔
状の基底部(41)及びフランジ(43)が円筒状の首
部(42)の両端に張出された形状になされている。し
かも、フランジ(43)の背面側には、首部(42)を
幾分拡径させた拡径部(45)が設けられる。大径の鍔
として形成された基底部(41)は、容器本体(1)の
内筒(2)及び外套(3)の間に埋設され、そして、く
びれ部としての首部(42)が貫通する外套(3)の開
口縁部は、基底部(41)と拡径部(45)によって挟
み込まれた構造になされている。これにより、ポート部
材(4)は、容器本体(1)に対して強固に一体化され
る。
More specifically, the port member (4) is formed in a shape in which a flange-like base (41) and a flange (43) are extended at both ends of a cylindrical neck (42). In addition, on the back side of the flange (43), an enlarged portion (45) is provided in which the diameter of the neck portion (42) is slightly increased. The base part (41) formed as a large-diameter flange is embedded between the inner cylinder (2) and the mantle (3) of the container body (1), and a neck part (42) as a constriction part penetrates. The opening edge of the mantle (3) has a structure sandwiched between a base portion (41) and an enlarged diameter portion (45). Thereby, the port member (4) is firmly integrated with the container body (1).

【0021】一方、上記の容器本体(1)の内筒(2)
は、容器本体(1)の一端において、ポート部材(4)
の基底部(41)内面から首部(42)の内面および先
端面、すなわち、フランジ(43)の上端面を覆う状態
に連続して形成される。内筒(2)は、容器本体(1)
の端部に突出し、ポート部材(4)のフランジ(43)
の上端面において張出部(24)を形成している。これ
により、容器本体(1)の端部とポート部材(4)との
取合部分における気密性が保持される。
On the other hand, the inner cylinder (2) of the container body (1)
A port member (4) at one end of the container body (1).
Are formed continuously from the inner surface of the base portion (41) to the inner surface and the distal end surface of the neck portion (42), that is, the upper end surface of the flange (43). The inner cylinder (2) is the container body (1)
Of the port member (4).
An overhang (24) is formed on the upper end surface of the. Thereby, airtightness is maintained at the joint between the end of the container body (1) and the port member (4).

【0022】本発明においては、ポート部材(4)に容
器弁取付部材(5)を締結した際、締結力によるポート
部材(4)の変形を防止するため、容器弁取付部材
(5)は、ポート部材(4)の首部(42)に略緊密に
挿入される円筒状の挿入部(55)を有していることが
重要である。具体的には、図2に示す様に、容器弁取付
部材(5)は、容器弁取付用の雌ねじが中心に穿孔され
且つフランジ(43)に締結される被締結手段としての
フランジ(53)が張出された部材であり、その内側端
面の中心には、前記の雌ねじに連続する円筒体としての
挿入部(55)が突設される。
In the present invention, when the container valve mounting member (5) is fastened to the port member (4), in order to prevent the deformation of the port member (4) due to the fastening force, the container valve mounting member (5) includes: It is important to have a cylindrical insert (55) that is inserted approximately tightly into the neck (42) of the port member (4). Specifically, as shown in FIG. 2, the container valve mounting member (5) has a female screw for mounting a container valve, which is bored at the center, and is fastened to the flange (43). Is a protruding member, and an insertion portion (55) as a cylindrical body connected to the female screw protrudes from the center of the inner end face.

【0023】挿入部(55)の突出長さは、若干でも首
部(42)に挿入しできる長さであればよいが、ポート
部材(4)に締結した際、少なくとも、ポート部材
(4)のフランジ(43)の厚さに相当する深さで首部
(42)に挿入し得る長さとされるのが好ましい。勿
論、装着に支障がない限り、挿入部(55)の長さは、
ポート部材(4)を貫通する様な長さであってもよい。
The projecting length of the insertion portion (55) may be any length as long as it can be inserted into the neck portion (42), but when it is fastened to the port member (4), at least the length of the port member (4) is reduced. The length is preferably such that it can be inserted into the neck (42) at a depth corresponding to the thickness of the flange (43). Of course, the length of the insertion part (55) is
The length may be such that it penetrates the port member (4).

【0024】そして、容器弁取付部材(5)は、ポート
部材(4)に対し、首部(42)の先端面に露出する内
筒(2)の張出部(24)との間に挿入されたシール材
(6)を介し且つ首部(42)へ挿入部(55)を挿入
させた状態で締結される。シール材(6)は、締付操作
を容易にし且つシール材事態の変形を防止するため、容
器弁取付部材(5)の内側端面に予め設けられた溝(5
4)に配置され、容器弁取付部材(5)は、フランジ
(53)とフランジ(43)を複数のボルト・ナット
(7)で締め付けることにより締結される。
The container valve mounting member (5) is inserted between the port member (4) and the projecting portion (24) of the inner cylinder (2) exposed on the distal end surface of the neck (42). It is fastened with the insertion part (55) inserted through the sealing material (6) and into the neck part (42). The sealing member (6) is provided with a groove (5) provided in advance on the inner end face of the container valve mounting member (5) to facilitate the tightening operation and prevent deformation of the sealing member.
4), the container valve mounting member (5) is fastened by tightening the flange (53) and the flange (43) with a plurality of bolts and nuts (7).

【0025】なお、シール材(6)としては、例えば、
天然ゴム、シリコンゴム、フッ素ゴムなどの合成ゴム、
4フッ化エチレン、ポリアミド、ポリエチレン、ポリエ
ステルなどの樹脂、ステンレスやアルミニウム、銅、チ
タンなどの金属によって構成された所謂Oリングや環状
のパッキンが使用される。
As the sealing material (6), for example,
Synthetic rubber such as natural rubber, silicon rubber, fluorine rubber,
A so-called O-ring or annular packing made of a resin such as tetrafluoroethylene, polyamide, polyethylene, or polyester, or a metal such as stainless steel, aluminum, copper, or titanium is used.

【0026】また、図2に示す様に、本発明において
は、容器弁取付部材(5)を締結した際、首部(42)
の先端面に露出する内筒(2)の張出部(24)が潰れ
て変形しない様に、張出部(24)は、首部(42)の
先端面に没入しているのが好ましい。すなわち、張出部
(24)は、首部(42)の先端面に予め低く形成され
た円環状の扁平な浅溝に嵌め込まれた状態に配置され
る。首部(42)の先端面に対する張出部(24)の没
入の深さは、内筒(2)が配置された状態において、首
部(42)の先端面全体が略平坦面となる様な深さが好
ましい。
As shown in FIG. 2, in the present invention, when the container valve mounting member (5) is fastened, the neck (42)
It is preferable that the overhang portion (24) is immersed in the distal end surface of the neck (42) so that the overhang portion (24) of the inner cylinder (2) exposed at the distal end surface of the neck portion (42) is not crushed and deformed. That is, the overhang portion (24) is arranged so as to be fitted into an annular flat shallow groove formed in advance on the distal end surface of the neck portion (42). The depth of the protrusion (24) with respect to the distal end surface of the neck portion (42) is such that the entire distal end surface of the neck portion (42) is substantially flat when the inner cylinder (2) is arranged. Is preferred.

【0027】ところで、本発明の好ましい態様は、前述
の通り、軽量性、気密性、成形精度などの観点から、容
器本体(1)の内筒(2)が合成樹脂、外套(3)が繊
維強化プラスチックによってそれぞれ構成され、ポート
部材(4)が金属によって構成される。しかしながら、
斯かる態様の耐圧容器においては、ポート部材(4)を
構成する金属に比べ、内筒(2)を構成する合成樹脂の
線膨張率が大きいため、後述の製造方法によって内筒
(2)にポート部材(4)を一体化した場合、成形後の
冷却過程で内筒(2)が相対的に大きく収縮し、ポート
部材(4)の基底部(41)の外周縁が内筒(2)から
外れることも予想される。
In the preferred embodiment of the present invention, as described above, the inner cylinder (2) of the container body (1) is made of synthetic resin, and the outer jacket (3) is made of fiber from the viewpoint of lightness, airtightness, and molding accuracy. Each of the port members (4) is made of a reinforced plastic, and the port member (4) is made of a metal. However,
In the pressure-resistant container of this aspect, the synthetic resin constituting the inner cylinder (2) has a larger linear expansion coefficient than the metal constituting the port member (4). When the port member (4) is integrated, the inner cylinder (2) shrinks relatively significantly during the cooling process after molding, and the outer peripheral edge of the base portion (41) of the port member (4) becomes the inner cylinder (2). It is also expected to deviate from.

【0028】しかも、基底部(41)の外周縁がエッジ
のある角部を有している場合には、基底部(41)の外
周縁が内筒(2)から外れた際、前記の角部によって外
套(3)の補強繊維を損傷することも考えられる。もっ
とも、基底部(41)の外周縁に段差を形成することに
より、基底部(41)に対する内筒(2)の結合強度を
高めて外周縁の外れを防止することも考えられるが、基
底部(41)の外周縁に単に段差を形成した場合には、
段差の薄肉部分の強度が低下し、内筒(2)による引張
り応力によって破損することも危惧される。
Further, when the outer peripheral edge of the base portion (41) has a corner with an edge, when the outer peripheral edge of the base portion (41) comes off the inner cylinder (2), the above-mentioned corner is formed. It is conceivable that the reinforcing fibers of the mantle (3) may be damaged by the part. However, by forming a step on the outer peripheral edge of the base portion (41), it is conceivable to increase the bonding strength of the inner cylinder (2) to the base portion (41) to prevent the outer peripheral edge from coming off. When a step is simply formed on the outer peripheral edge of (41),
It is feared that the strength of the thin portion of the step is reduced, and that the portion is damaged by the tensile stress caused by the inner cylinder (2).

【0029】そこで、本発明のより好ましい態様におい
ては、内筒(2)が合成樹脂、外套(3)が繊維強化プ
ラスチック、ポート部材(4)が金属によってそれぞれ
構成されている場合、図3(a)に示す様に、ポート部
材(4)の基底部(41)は、曲面に形成された外周縁
を備え、斯かる外周縁の曲面の直径(R)が、外周縁に
おける最小肉厚(t)の70〜100%に設定される。
Therefore, in a more preferred embodiment of the present invention, when the inner cylinder (2) is made of synthetic resin, the jacket (3) is made of fiber-reinforced plastic, and the port member (4) is made of metal, FIG. As shown in a), the base portion (41) of the port member (4) has an outer peripheral edge formed in a curved surface, and the diameter (R) of the curved surface of the outer peripheral edge is set to the minimum thickness (R) in the outer peripheral edge. It is set to 70 to 100% of t).

【0030】通常、基底部(41)の外周縁の最小肉厚
(t)は、3〜6mm程度、内筒(2)の厚さは、2〜
5mm程度に設計されるが、外周縁の直径(R)を上記
の範囲に設定することにより、実用上の上記の様な不具
合の発生を防止できる。なお、基底部(41)の外周縁
は、上記の条件を満足する限り、例えば、図4に示す様
に、段差が形成された形状になされていてもよい。その
場合、基底部(41)の外周縁における段差の先端側の
突出部分が曲面に形成される。
Usually, the minimum thickness (t) of the outer peripheral edge of the base portion (41) is about 3 to 6 mm, and the thickness of the inner cylinder (2) is 2 to 6 mm.
It is designed to be about 5 mm, but by setting the diameter (R) of the outer peripheral edge in the above range, it is possible to prevent the above-mentioned problems in practical use. Note that the outer peripheral edge of the base portion (41) may be formed in a stepped shape as shown in FIG. 4 as long as the above condition is satisfied. In that case, a protruding portion on the distal end side of the step at the outer peripheral edge of the base portion (41) is formed into a curved surface.

【0031】本発明の耐圧容器は、予め成形した内筒
(2)の外周を外套(3)で覆うことにより、ポート部
材(4)が一体化された容器本体(1)を作製し、次い
で、ポート部材(4)に容器弁取付部材(5)を締結し
て製造される。軽合金の内筒(2)は、圧延加工法、押
出加工法などによって製造される。合成樹脂の内筒
(2)は、圧縮成形法、ブロー成形法、射出成形法、F
RP成形法などの公知の成形技術によって製造される。
斯かる成形法によって製造する場合は、予め成形金型に
ポート部材(4)を固定してブロー成形または射出成形
することにより、内筒(2)にポート部材(4)を一体
的に結合できる。
In the pressure-resistant container of the present invention, the outer periphery of a preformed inner cylinder (2) is covered with a jacket (3) to produce a container body (1) in which a port member (4) is integrated. It is manufactured by fastening the container valve mounting member (5) to the port member (4). The light alloy inner cylinder (2) is manufactured by a rolling method, an extrusion method, or the like. The inner cylinder (2) of synthetic resin is made by compression molding, blow molding, injection molding, F
It is manufactured by a known molding technique such as an RP molding method.
When manufacturing by such a molding method, the port member (4) can be integrally connected to the inner cylinder (2) by previously fixing the port member (4) to a molding die and performing blow molding or injection molding. .

【0032】特に、樹脂の内筒(2)を成形するには、
回転金型内に供給した溶融樹脂を遠心力によって成形す
る回転成形法が好適である。回転成形法によって内筒
(2)を製造する場合は、ポート部材(4)を予め回転
成形用金型の所定位置に固定して成形するインサート回
転成形法により、内筒(2)にポート部材(4)を一体
的に結合できる。更に、回転成形法によって内筒(2)
を多層に構成するには、ポリエチレンなどの層を形成し
た後に、ガスバリア性に優れたポリアミド樹脂などを回
転金型に供給して内側層を形成する。また、ガスバリア
層を形成するには、回転成形法で製造した内筒(2)の
表面に金属メッキによって被膜を形成してもよい。
In particular, to mold the resin inner cylinder (2),
A rotary molding method of molding the molten resin supplied into the rotary mold by centrifugal force is preferable. When the inner cylinder (2) is manufactured by the rotational molding method, the port member (4) is fixed to a predetermined position of the rotational molding die in advance by an insert rotational molding method, and the port member is attached to the inner cylinder (2). (4) can be integrally connected. Furthermore, the inner cylinder (2)
In order to form the inner layer, after forming a layer of polyethylene or the like, a polyamide resin or the like having excellent gas barrier properties is supplied to a rotary mold to form an inner layer. Further, in order to form the gas barrier layer, a coating may be formed on the surface of the inner cylinder (2) manufactured by the rotational molding method by metal plating.

【0033】繊維強化プラスチックで外套(3)を成形
するには、樹脂が含浸された補強繊維糸の巻層をフィラ
メントワインディング法やテープワインディング法によ
って内筒(2)の外側に形成し、次いで、樹脂を加熱溶
融した後に硬化させる。外套(3)の強度および厚さ
は、容器の形状、内容積、充填するガスの種類、常用圧
力などを勘案して設定される。
In order to form the mantle (3) with the fiber reinforced plastic, a wound layer of the reinforcing fiber yarn impregnated with the resin is formed on the outside of the inner cylinder (2) by a filament winding method or a tape winding method, and then, After the resin is heated and melted, it is cured. The strength and thickness of the mantle (3) are set in consideration of the shape and internal volume of the container, the type of gas to be filled, the normal pressure, and the like.

【0034】本発明の耐圧容器は、上記の様に、容器本
体(1)の一端に設けられたポート部材(4)に容器弁
取付部材(5)を締結して構成され、容器弁取付部材
(5)に容器弁などを装着し、所定のガスを充填して使
用される。斯かる耐圧容器において、ポート部材(4)
は、容器本体(1)の一端において内筒(2)と外套
(3)の間に基底部(41)が埋設され、基底部(4
1)から略垂直に立上げられた首部(42)によって内
筒(2)の突出部分を補強し、ガスの内圧によって内筒
(2)の突出部分が拡径する方向へ変形するのを防止す
る。従って、本発明の耐圧容器は、ポート部材(4)の
首部(42)の先端面におけるシール性を維持できる。
As described above, the pressure-resistant container of the present invention is constituted by fastening the container valve mounting member (5) to the port member (4) provided at one end of the container body (1). A container valve or the like is attached to (5), and is filled with a predetermined gas for use. In such a pressure-resistant container, a port member (4)
The base (41) is buried between the inner cylinder (2) and the mantle (3) at one end of the container body (1), and the base (4)
The projection of the inner cylinder (2) is reinforced by the neck (42) raised substantially vertically from 1), and the projection of the inner cylinder (2) is prevented from being deformed in the direction in which the diameter of the projection increases due to the internal pressure of gas. I do. Therefore, the pressure-resistant container of the present invention can maintain the sealing property at the distal end face of the neck (42) of the port member (4).

【0035】また、ポート部材(4)の首部(42)へ
挿入部(55)を挿入させた容器弁取付部材(5)の締
結構造は、ポート部材(4)に容器弁取付部材(5)を
締結した際、ポート部材(4)の首部(42)の先端側
を内側から補強する様に機能するため、フランジ(4
3)に作用する締結力によってポート部材(4)の首部
(42)が径方向内側へ変形するのを防止できる。すな
わち、本発明の耐圧容器においては、ポート部材(4)
の変形を一層低減でき、ポート部材(4)におけるシー
ル性をより高めることが出来る。
The fastening structure of the container valve mounting member (5) in which the insertion portion (55) is inserted into the neck portion (42) of the port member (4) is such that the container member mounting member (5) is connected to the port member (4). When the flange (4) is engaged, it functions to reinforce the distal end side of the neck (42) of the port member (4) from the inside.
The neck portion (42) of the port member (4) can be prevented from being deformed radially inward by the fastening force acting on (3). That is, in the pressure vessel of the present invention, the port member (4)
Can be further reduced, and the sealing performance of the port member (4) can be further improved.

【0036】更に、図2に示す様に、内筒(2)の張出
部(24)が首部(42)の先端面に没入した構造にな
されている場合には、容器弁取付部材(5)を締結した
際、張出部(24)の外周縁がポート部材(4)の浅溝
によって支持されており、潰れることがないため、張出
部(24)の平坦度を維持でき、シール性をより一層高
めることが出来る。しかも、本発明の耐圧容器は、容器
検査などにおいて、容器弁取付部材(5)を取り外すこ
とによって内部検査や耐圧検査を簡単に実施でき、シー
ル材(6)も容易に交換できる。
Further, as shown in FIG. 2, when the projecting portion (24) of the inner cylinder (2) is configured to be immersed in the distal end surface of the neck (42), the container valve mounting member (5) is formed. ) Is fastened, the outer peripheral edge of the overhang portion (24) is supported by the shallow groove of the port member (4) and does not collapse, so that the flatness of the overhang portion (24) can be maintained and the seal can be maintained. The properties can be further enhanced. In addition, in the pressure-resistant container of the present invention, the internal inspection and the pressure-resistant inspection can be easily performed by removing the container valve attaching member (5) in the container inspection or the like, and the seal member (6) can be easily replaced.

【0037】また、図5(a)及び図6に示す様に、内
筒(2)、外套(3)及びポート部材(4)が所定材料
によってそれぞれ構成され、かつ、ポート部材(4)の
基底部(41)の外周縁が特定の曲面に形成されている
場合には、製造時の内筒(2)の収縮による前述の様な
問題を解決できる。すなわち、特定の直径(R)で形成
された基底部(41)の外周縁の曲面は、内筒(2)の
収縮によって引張り荷重が作用した際にその応力を分散
させる。従って、本発明の耐圧容器においては、ポート
部材(4)の基底部(41)の破損を有効に防止でき
る。そして、図5(b)に示す様に、仮に、内筒(2)
の収縮によってポート部材(4)の基底部(41)が外
れた場合でも、基底部(41)の外周縁は、外套(3)
の内面に対して面接触するため、外套(3)の損傷を防
止できる。
As shown in FIGS. 5 (a) and 6, the inner cylinder (2), the outer jacket (3) and the port member (4) are made of a predetermined material, respectively. When the outer peripheral edge of the base portion (41) is formed in a specific curved surface, the above-described problem due to shrinkage of the inner cylinder (2) during manufacturing can be solved. That is, the curved surface of the outer peripheral edge of the base portion (41) formed with a specific diameter (R) disperses the stress when a tensile load is applied due to the contraction of the inner cylinder (2). Therefore, in the pressure-resistant container of the present invention, damage to the base portion (41) of the port member (4) can be effectively prevented. Then, as shown in FIG. 5 (b), temporarily, the inner cylinder (2)
Even when the base portion (41) of the port member (4) comes off due to contraction of the outer member, the outer peripheral edge of the base portion (41) remains
Since the inner surface is in surface contact, damage to the jacket (3) can be prevented.

【0038】また、本発明の耐圧容器は、図5に示す様
に構成されていてもよい。図5に示す耐圧容器におい
て、ポート部材(4)の首部(42)の先端には、フラ
ンジ(43)の端面よりも突出する突出部(47)が形
成され、内筒(2)の張出部(24)は、突出部(4
7)を覆う状態に連続して形成され、また、容器弁取付
部材(5)の内側端面には、挿入部(55)の外周に突
出部(47)が嵌合する溝が設けられる。
The pressure vessel of the present invention may be configured as shown in FIG. In the pressure-resistant container shown in FIG. 5, a projection (47) projecting from the end surface of the flange (43) is formed at the tip of the neck (42) of the port member (4), and the inner cylinder (2) projects. The part (24) is provided with the protruding part (4
A groove is formed on the inner end face of the container valve mounting member (5) so as to fit the protruding portion (47) around the outer periphery of the insertion portion (55).

【0039】シール材(6)は、突出部(47)と溝の
嵌合部分において気密を保持する様に、突出部(47)
の先端、すなわち、容器弁取付部材(5)の内側端面の
溝の奥端に配置される。その他の構成は図1の態様と同
様である。図5に示す耐圧容器は、図1の態様と比べて
形状が幾分複雑ではあるが、容器弁取付部材(5)の装
着の際、ポート部材(4)に対して自動的に軸合わせで
き、保守作業が容易である。そして、斯かる耐圧容器に
おいても、前述の態様と同様に、ポート部材(4)の変
形を低減でき、シール性を高めることが出来る。
The sealing member (6) has a protrusion (47) so as to maintain airtightness at a fitting portion between the protrusion (47) and the groove.
, That is, the inner end face of the container valve mounting member (5), at the deep end of the groove. Other configurations are the same as those in the embodiment of FIG. Although the pressure-resistant container shown in FIG. 5 is somewhat complicated in shape as compared with the embodiment of FIG. 1, it can be automatically aligned with the port member (4) when the container valve mounting member (5) is mounted. , Maintenance work is easy. And also in such a pressure-resistant container, similarly to the above-described embodiment, the deformation of the port member (4) can be reduced, and the sealing property can be improved.

【0040】更に、本発明の耐圧容器は、図6に示す様
に構成されていてもよい。図6に示す耐圧容器におい
て、ポート部材(4)の締結手段は、首部(42)の外
周の雄ねじ(46)によって構成され、容器弁取付部材
(5)は、外周が例えば6角形に形成され且つ内周に雌
ねじ(56)が設けられたキャップ状の本体と、その内
端面の中心に突設された挿入部(55)から成る。シー
ル材(6)は、容器弁取付部材(5)の本体の内端面と
ポート部材(4)の首部(42)の先端面に露出する張
出部(24)との間に介装される。
Further, the pressure vessel of the present invention may be configured as shown in FIG. In the pressure-resistant container shown in FIG. 6, the fastening means of the port member (4) is constituted by an external thread (46) on the outer periphery of the neck (42), and the outer periphery of the container valve mounting member (5) is formed, for example, in a hexagonal shape. The cap-shaped main body is provided with a female screw (56) on the inner periphery, and an insertion portion (55) protruding from the center of the inner end surface. The sealing material (6) is interposed between the inner end surface of the main body of the container valve mounting member (5) and the overhang portion (24) exposed on the distal end surface of the neck (42) of the port member (4). .

【0041】容器弁取付部材(5)は、レンチ等の工具
を使用してポート部材(4)の首部(42)に締付けら
れることによりポート部材(4)に締結される。なお、
図6に示す耐圧容器においては、ポート部材(4)の固
定強度を高めるため、基底部(41)との間で外套
(3)を挟み込む補強リング(57)が首部(42)の
外周に螺着される。その他の構成は図1の態様と同様で
ある。図6に示す耐圧容器も、容器弁取付部材(5)の
装着が簡単であり、保守作業が容易である。そして、斯
かる耐圧容器においても、前述の態様と同様に、ポート
部材(4)の変形を低減でき、シール性を高めることが
出来る。
The container valve mounting member (5) is fastened to the port member (4) by being tightened to the neck (42) of the port member (4) using a tool such as a wrench. In addition,
In the pressure vessel shown in FIG. 6, in order to increase the fixing strength of the port member (4), a reinforcing ring (57) for sandwiching the mantle (3) with the base (41) is screwed around the outer periphery of the neck (42). Be worn. Other configurations are the same as those in the embodiment of FIG. The pressure-resistant container shown in FIG. 6 also has a simple mounting of the container valve mounting member (5) and is easy to maintain. And also in such a pressure-resistant container, similarly to the above-described embodiment, the deformation of the port member (4) can be reduced, and the sealing property can be improved.

【0042】なお、本発明の耐圧容器においては、容器
弁取付部材(5)に代え、ポート部材(4)の首部(4
2)に挿入可能に構成された上記の挿入部(55)と同
様の円筒状の挿入部を有し且つ補強機能を発揮する容器
弁が直接取り付けられてもよい。
In the pressure vessel of the present invention, the neck (4) of the port member (4) is used instead of the vessel valve mounting member (5).
A container valve having a cylindrical insertion portion similar to the above-described insertion portion (55) configured to be insertable into 2) and exhibiting a reinforcing function may be directly attached.

【0043】また、各図に示す耐圧容器において、ポー
ト部材(4)の首部(42)の先端面に露出する張出部
(24)は、先端の外周縁が折曲されて首部(42)の
先端面に埋設された構造を備えていてることにより、本
発明の耐圧容器においては、内筒(2)の張出部(2
4)とポート部材(4)の首部(42)との剥離を有効
に防止できる。また、ポート部材(4)の基底部(4
1)に突起や小孔が設けられている場合には、容器本体
(1)の端部において、内筒(2)及び外套(3)に対
するポート部材(4)の結合力を一層高めることが出来
る。更に、容器本体(1)にポート部材(4)の基底部
(41)を結合する場合、接着剤を利用してもよい。
Further, in the pressure-resistant container shown in each figure, the projecting portion (24) exposed on the distal end surface of the neck portion (42) of the port member (4) has the outer peripheral edge at the distal end bent and the neck portion (42). The pressure vessel of the present invention has a structure buried in the distal end surface of the inner cylinder (2).
4) and separation of the neck portion (42) of the port member (4) can be effectively prevented. Also, the base (4) of the port member (4)
When a projection or a small hole is provided in 1), the coupling force of the port member (4) to the inner cylinder (2) and the outer jacket (3) at the end of the container body (1) can be further increased. I can do it. Furthermore, when connecting the base part (41) of the port member (4) to the container body (1), an adhesive may be used.

【0044】[0044]

【発明の効果】本発明の耐圧容器によれば、ポート部材
に容器弁取付部材を締結した際、ポート部材の首部へ挿
入部を挿入させた容器弁取付部材または容器弁の特定の
締結構造がポート部材の首部の先端側を内側から補強す
る様に機能するため、締結部材に作用する締結力によっ
てポート部材の首部が径方向内側へ変形するのを防止で
き、ポート部材におけるシール性をより高めることが出
来る。また、内筒の張出部が首部の先端面に没入した構
造になされている場合には、容器弁取付部材を締結した
際、張出部が潰れることがないため、シール性をより一
層高めることが出来る。
According to the pressure-resistant container of the present invention, when the container valve mounting member is fastened to the port member, the specific fastening structure of the container valve mounting member or the container valve in which the insertion portion is inserted into the neck of the port member. Since it functions to reinforce the distal end side of the neck portion of the port member from the inside, it is possible to prevent the neck portion of the port member from being deformed radially inward by the fastening force acting on the fastening member, and to further enhance the sealing performance of the port member. I can do it. In the case where the overhang of the inner cylinder is immersed in the distal end surface of the neck, the overhang does not collapse when the container valve mounting member is fastened, so that the sealing performance is further improved. I can do it.

【0045】更に、内筒、外套およびポート部材が所定
材料によって構成され且つポート部材の基底部の外周縁
が特定の曲面に形成された本発明の耐圧容器によれば、
製造時の内筒の収縮によって前記の外周縁に作用する引
張り荷重を前記の特定の曲面が分散させるため、ポート
部材の基底部における破損を有効に防止できる。
Further, according to the pressure-resistant container of the present invention, wherein the inner cylinder, the outer jacket and the port member are made of a predetermined material, and the outer peripheral edge of the base of the port member is formed on a specific curved surface.
Since the specific curved surface disperses the tensile load acting on the outer peripheral edge due to contraction of the inner cylinder during manufacturing, breakage at the base of the port member can be effectively prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の耐圧容器における端部の構造を示す部
分的な縦断面図
FIG. 1 is a partial longitudinal sectional view showing a structure of an end portion of a pressure-resistant container of the present invention.

【図2】耐圧容器におけるポート部材と内筒の係合構造
およびポート部材と容器弁取付部材の締結構造を示す拡
大した縦断面図
FIG. 2 is an enlarged longitudinal sectional view showing an engagement structure between a port member and an inner cylinder and a fastening structure between a port member and a container valve mounting member in the pressure-resistant container.

【図3】ポート部材の基底部の好ましい形態を示す拡大
した縦断面図
FIG. 3 is an enlarged longitudinal sectional view showing a preferred form of a base portion of the port member.

【図4】ポート部材の基底部の好ましい形態を示す拡大
した縦断面図
FIG. 4 is an enlarged longitudinal sectional view showing a preferred form of a base portion of the port member.

【図5】ポート部材と容器弁取付部材の他の態様を示す
部分的な縦断面図
FIG. 5 is a partial longitudinal sectional view showing another embodiment of the port member and the container valve attaching member.

【図6】ポート部材と容器弁取付部材の更に他の態様を
示す部分的な縦断面図
FIG. 6 is a partial longitudinal sectional view showing still another embodiment of the port member and the container valve attaching member.

【図7】従来の耐圧容器における口金装着部を示す縦断
面図
FIG. 7 is a longitudinal sectional view showing a base mounting portion in a conventional pressure-resistant container.

【符号の説明】[Explanation of symbols]

1 :容器本体 2 :内筒 24:張出部 3 :外套 4 :ポート部材 41:基底部 42:首部 43:フランジ(締結手段) 46:雄ねじ(締結手段) 5 :容器弁取付部材 53:フランジ(被締結手段) 56:雌ねじ(被締結手段) 55:挿入部 6 :シール材 7 :ボルト・ナット t :基底部の外周縁の最小肉厚 R :基底部の外周縁の曲面の直径 1: Container main body 2: Inner cylinder 24: Overhanging part 3: Jacket 4: Port member 41: Base part 42: Neck part 43: Flange (fastening means) 46: Male thread (fastening means) 5: Container valve mounting member 53: Flange (Measured means) 56: female screw (measured means) 55: insertion portion 6: sealing material 7: bolt / nut t: minimum thickness of outer peripheral edge of base portion R: diameter of curved surface of outer peripheral edge of base portion

───────────────────────────────────────────────────── フロントページの続き (72)発明者 香川 和彦 三重県四日市市東邦町1番地 三菱化学株 式会社四日市事業所内 (72)発明者 斉藤 誠 兵庫県神戸市西区高塚台1丁目5番5号 株式会社神戸製鋼所神戸総合技術研究所内 (72)発明者 中山 浩樹 兵庫県神戸市西区高塚台1丁目5番5号 株式会社神戸製鋼所神戸総合技術研究所内 (72)発明者 難波 三男 東京都町田市忠生2丁目16番4号 高圧ガ ス保安協会液化石油ガス研究所内 Fターム(参考) 3E072 AA10 BA04 CA01 CA06 DA01 DA05  ──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuhiko Kagawa 1 Tohocho, Yokkaichi City, Mie Prefecture Inside Yokkaichi Office of Mitsubishi Chemical Corporation (72) Inventor Makoto Saito 1-5-5 Takatsudai, Nishi-ku, Kobe City, Hyogo Prefecture Kobe Steel, Ltd.Kobe Research Institute (72) Inventor Hiroki Nakayama 1-5-5 Takatsukadai, Nishi-ku, Kobe City, Hyogo Prefecture Kobe Steel, Ltd.Kobe Research Institute (72) Inventor Mitsuo Namba Machida, Tokyo 2-16-4 Ichi Tadao High Pressure Gas Safety Association Liquefied Petroleum Gas Laboratory F-term (reference) 3E072 AA10 BA04 CA01 CA06 DA01 DA05

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 液化ガス又は圧縮ガスを充填するための
略円筒状の耐圧容器であって、ガスバリア性を有する内
筒(2)及び耐圧強度を発揮する合成樹脂製の外套
(3)から成る多層構造の容器本体(1)と、当該容器
本体の端部に設けられたポート部材(4)と、当該ポー
ト部材に装着された容器弁取付部材(5)又は容器弁と
から構成され、ポート部材(4)は、略円環状に拡張さ
れ且つ容器本体(1)の端部において内筒(2)と外套
(3)の間に埋設された基底部(41)と、外套(3)
を貫通する高さまで基底部(41)から略垂直に立上げ
られた首部(42)と、当該首部の外周側に付設された
締結手段とを備え、容器本体(1)の内筒(2)は、容
器本体(1)の端部においてポート部材(4)の基底部
(41)内面から首部(42)の内面および先端面を覆
う状態に連続して形成され、容器弁取付部材(5)又は
容器弁は、前記の締結手段に締結される被締結手段と、
ポート部材(4)の首部(42)に略緊密に挿入される
円筒状の挿入部(55)とを有し、そして、ポート部材
(4)に対し、首部(42)の先端面に露出する内筒
(2)の張出部(24)との間に挿入されたシール材
(6)を介し且つ首部(42)へ挿入部(55)を挿入
させた状態で締結されていることを特徴とする耐圧容
器。
1. A substantially cylindrical pressure vessel for filling a liquefied gas or a compressed gas, comprising an inner cylinder (2) having gas barrier properties and a jacket (3) made of synthetic resin exhibiting pressure resistance. A container body (1) having a multilayer structure, a port member (4) provided at an end of the container body, and a container valve mounting member (5) or a container valve attached to the port member; The member (4) has a base (41) which is expanded in a substantially annular shape and is embedded at the end of the container body (1) between the inner cylinder (2) and the outer jacket (3), and the outer jacket (3).
An inner cylinder (2) of the container body (1), comprising a neck (42) raised substantially vertically from the base (41) to a height that penetrates the container, and fastening means attached to the outer peripheral side of the neck. Is formed continuously from the inner surface of the base portion (41) of the port member (4) to the inner surface and the tip surface of the neck portion (42) at the end of the container body (1), and the container valve mounting member (5). Or the container valve is a fastened means fastened to the fastening means,
A cylindrical insertion portion (55) that is inserted substantially tightly into the neck (42) of the port member (4), and is exposed to the distal end surface of the neck (42) with respect to the port member (4). The inner tube (2) is fastened with a sealing member (6) inserted between the projecting portion (24) and the neck portion (42) with the insertion portion (55) inserted into the neck portion (42). And pressure vessel.
【請求項2】 内筒(2)の張出部(24)が首部(4
2)の先端面に没入している請求項1に記載の耐圧容
器。
2. An overhang portion (24) of the inner cylinder (2) has a neck portion (4).
The pressure-resistant container according to claim 1, wherein the pressure-resistant container is immersed in the distal end surface of (2).
【請求項3】 容器本体(1)の内筒(2)が合成樹
脂、外套(3)が繊維強化プラスチックによってそれぞ
れ構成され、かつ、ポート部材(4)が金属によって構
成されている請求項1又は2に記載の耐圧容器。
3. An inner cylinder (2) of the container body (1) is made of synthetic resin, an outer jacket (3) is made of fiber reinforced plastic, and a port member (4) is made of metal. Or the pressure-resistant container according to 2.
【請求項4】 ポート部材(4)の基底部(41)は、
曲面に形成された外周縁を備え、前記外周縁の曲面の直
径(R)が、前記外周縁における最小肉厚(t)の70
〜100%に設定されている請求項3に記載の耐圧容
器。
4. The base (41) of the port member (4)
An outer peripheral edge formed on a curved surface is provided, and a diameter (R) of the curved surface of the outer peripheral edge is 70 of a minimum thickness (t) at the outer peripheral edge.
The pressure-resistant container according to claim 3, wherein the pressure is set to -100%.
JP11227783A 1999-08-11 1999-08-11 Pressure-resistant container Withdrawn JP2001050494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11227783A JP2001050494A (en) 1999-08-11 1999-08-11 Pressure-resistant container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11227783A JP2001050494A (en) 1999-08-11 1999-08-11 Pressure-resistant container

Publications (1)

Publication Number Publication Date
JP2001050494A true JP2001050494A (en) 2001-02-23

Family

ID=16866325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11227783A Withdrawn JP2001050494A (en) 1999-08-11 1999-08-11 Pressure-resistant container

Country Status (1)

Country Link
JP (1) JP2001050494A (en)

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JP2008256151A (en) * 2007-04-06 2008-10-23 Toyoda Gosei Co Ltd Pressure container
KR100943084B1 (en) 2008-02-14 2010-02-18 주식회사 엔케이 Device for preventing rotation of tube on mobile type tube-trailer for charging CNG
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US9816668B2 (en) 2013-02-08 2017-11-14 Rehau Ag + Co. Device for storing and delivery of a liquid and/or gaseous medium under pressure, as well as a fuel energy conversion device and method for assembling a device for storing and delivery of a liquid and/or gaseous medium under pressure
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JP2014222081A (en) * 2013-05-13 2014-11-27 中国工業株式会社 High pressure gas container
USD746942S1 (en) 2014-10-21 2016-01-05 Advanced Lightweight Engineering B.V. Low weight pressure vessel
US11333301B2 (en) 2017-05-15 2022-05-17 Advanced Lightweight Engineering B.V. Pressure vessel for the storage of pressurized fluids and vehicle comprising such a pressure vessel
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