JP3371453B2 - 樹脂製圧力容器の製造方法 - Google Patents

樹脂製圧力容器の製造方法

Info

Publication number
JP3371453B2
JP3371453B2 JP32823092A JP32823092A JP3371453B2 JP 3371453 B2 JP3371453 B2 JP 3371453B2 JP 32823092 A JP32823092 A JP 32823092A JP 32823092 A JP32823092 A JP 32823092A JP 3371453 B2 JP3371453 B2 JP 3371453B2
Authority
JP
Japan
Prior art keywords
resin
resin member
pressure vessel
manufacturing
groove
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.)
Expired - Fee Related
Application number
JP32823092A
Other languages
English (en)
Other versions
JPH06170953A (ja
Inventor
本 稔 山
井 清 隆 中
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Aisin Corp
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 Aisin Seiki Co Ltd, Aisin Corp filed Critical Aisin Seiki Co Ltd
Priority to JP32823092A priority Critical patent/JP3371453B2/ja
Publication of JPH06170953A publication Critical patent/JPH06170953A/ja
Application granted granted Critical
Publication of JP3371453B2 publication Critical patent/JP3371453B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C45/0062—Joined by injection moulding
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/70—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by moulding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、樹脂製圧力容器に関す
るもので、樹脂製の正圧または負圧タンクやインテーク
マンホールド等に利用できる。
【０００２】
【従来の技術】樹脂製圧力容器（以下圧力容器という）
の構造として、特開昭５９−１９８１１６号公報に開示
された「プラステックス材料の中空体」がある。
【０００３】この従来技術を図６に基づいて説明すれ
ば、２つの樹脂部材３１，３２はそれぞれフランジ３
３、３４の接触面３５、３６同士を接触させ、加圧され
た状態で外装部材３７がモールドされて樹脂製部材３
１、３２同士が分離しないように固定されている。
【０００４】
【発明が解決しようとする課題】しかし、２つの樹脂製
部材３１、３２は前記の方法によって気密的に接合して
いるが、２次接合成形時である外装部材３７にてモール
ド時に、接合部に射出成形による溶融樹脂が完全に充填
されてない場合とか、江入口の反対側に位置するウエル
ド部で空気を巻き込んだりして樹脂部材３１、３２間の
接合不良並びに、樹脂部材３１、外装部材３７間の接着
不良並びに樹脂部材３２、外装部材３７間の接着不良に
なる。
【０００５】又、前記状態で接合又は接着不良になって
も成形後に非破壊で不良を判別する手段がないという問
題点がある。
【０００６】本発明は、複数の樹脂製部材から成る圧力
容器の締結構造の改善を、その技術的課題とするもので
ある。
【０００７】
【課題を解決するための手段】前述した本発明の技術的
課題を解決するために講じた本発明の技術的手段は次の
ようである。
【０００８】成形型内で中空状の第１樹脂部材の開口部
を覆うように第２樹脂部材を接触させ、前記接触面の周
囲に位置するキャビテー内に熱可塑性樹脂を注入して外
装部材を形成して前記第１樹脂部材と前記第２樹脂部材
とを接合する樹脂製圧力容器の製造方法において、前記
第２樹脂部材の前記可塑性樹脂入口と反対側に位置する
部分に、前記キャビテーに連通するように前記第２樹脂
部材の外周方向に向かって溝状凹部を形成する製造方法
か、更に上型の下面部で熱可塑性樹脂注入口と反対側の
一に、前記キャビテーに連通するように前記第２樹脂部
材の外周方向に向かって溝状凹部を形成した製造方法で
ある。
【０００９】
【作用】上述した本発明の技術的手段によれば、第２樹
脂部材に配設した充填確認用の溝に樹脂部材が充填され
ていれば、外装部材が完全にキャビティーを埋め尽くし
て、圧力容器の樹脂製部材が強固に密着すると共に、巻
き込んだ空気も溝部に集中し、外装部材の強度の低下は
まったく無いものである。
【００１０】従って、外装部材と第１樹脂部材との接着
力及び外装部材と第２樹脂部材との接着力が保持され
る。
【００１１】
【実施例】以下実施例について説明する。
【００１２】（実施例１）図１〜２に於いて、１０の圧
力容器で、１は外装部材７を射出成形するための上型
で、２は下型である。外装部材７を形成する場合に、第
１成形部材３とその開口部を覆うように第２成形部材で
あるフタ４のそれぞれの接触面３ａ、４ａを有するフラ
ンジ５、６を形成する。
【００１３】フタ４には射出成形時の樹脂入口１１と反
対側の位置１２より中央部に向かって凹状の溝８（樹脂
充填確認部）が設けてある。
【００１４】次に接触面３ａ、４ａ同士を接触させた状
態で樹脂製部材３、４と同一材料または同一種類で樹脂
製部材３、４と融点が同じか高い樹脂材料をキャビティ
ーに射出成形することによりフランジ５、６の外周部に
外装部材７を成形し、樹脂製部材３、４同士を締結す
る。ここで樹脂製部材３、４として６−ナイロン等が用
いられ、外装部材７としては６−ナイロンまたは６６−
ナイロン等が用いられる。
【００１５】この外装部材７の射出成形時において樹脂
部材はキャビテーを埋め して、更にフタ４の凹状の溝
部８に流入して樹脂の充填確認部である溝８を埋めつく
す。
【００１６】上型１及び下型２を移動して圧力容器１０
を取り出し充填確認部である溝部８に樹脂が充填されて
いればフランジ５、６は確実に密着しており又気泡１５
が発生しても前記溝部の先端に集中し外装部材７にはま
ったく発生がなく、強固に密着出来る。又前記凹状溝８
は充填確認の役割として目盛１３が設けてあり、樹脂の
充填の状況が瞬時に確認出来、従来のように破壊による
検査はまったく必要としない。
【００１７】（実施例２）図３〜４について説明する。
【００１８】１は上型、２は下型で、１０は圧力容器で
ある。
【００１９】この圧力容器の製法として、上型１の下面
部１ａの射出口を反対側の位置に外装部材７のキャビテ
ィーに連通した溝９を設けたもので、この状況で外装部
材の樹脂を射出成形することにより、圧力容器の第１樹
脂部材３とフタに担当する第２樹脂部材４とをフランジ
５と６にて密着させると共に、射出される樹脂は上型１
の凹状溝９を充填し、図３に示すように第２樹脂部材４
の表面に凸状１５が形成される。
【００２０】この場合溝底部に目盛１４を設ければ、ひ
とめで充填状況が判るものである。
【００２１】樹脂に気泡が混入していても溝部先端に集
中して外装部材７には皆無となり、外装部材７の強度の
低下は全くないものである。
【００２２】図５は圧力容器の使用例で、圧力容器１０
を図示しないエンジンの負圧タンクとして用いたもの
で、樹脂性部材３は空洞部２４を有する有底形状を呈
し、樹脂性部材４には第１、第２ポート２５ａ、２５ｂ
が形成されている。そして第１ポート２５ａにはチエッ
クバルブが配設され、例えばエンジンの図示しないイン
テークマニホールド等の負圧源に接続されている。
【００２３】一方第２ポート２５ｂには３方向弁２６を
介して、続されている。
【００２４】ここでは実施例１及び２に示す方法にて樹
脂部材３、４同士の締結が強固に行われていると共に気
密性が確保されているので、負圧タンク内に蓄えられた
負圧が漏れることがない。
【００２５】
【発明の効果】以上に示した様に本発明では、第２樹脂
部材であるフタの表面に配設した充填用の溝に指定以上
の目盛まで達していれば、圧力の容器の接合に充分な圧
力が加わることになり、気密性が向上し、接合不良や内
部成形不良が無くなり、製造工程でも容易に判別確認が
出来る。
【図面の簡単な説明】
【図１】本発明の第１実施例の樹脂製圧力容器で（ａ）
は平面図で（ｂ）は一部破断した上部の斜視図である。
【図２】図１の要部の拡大断面図である。
【図３】第２実施例の上部の斜視図である。
【図４】図３の要部の拡大断面図である。
【図５】本発明実施例の樹脂製圧力容器の使用例の説明
図である。
【図６】従来技術の要部の拡大断面図である。
【符号の説明】
１ 上型 １ａ 上型の下面部 ２ 下型 ３ 圧力容器の第１樹脂部材 ４ 圧力容器の第２樹脂部材 ３ａ，４ａ 接触面 ５，６ フランジ ７ 外装部材 ８，９ 溝 １０ 樹脂製圧力容器 １１ 射出成形入口 １２ 溝部成形位置 １４，１５ 目盛
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 65/70 B29C 45/14

Claims (2)

    (57)【特許請求の範囲】
  1. 【請求項１】 成形型内で中空状の第１樹脂部材の開口
    部を覆うように第２樹脂部材を接触させ、前記接触面の
    周囲に位置するキャビテー内に熱可塑性樹脂を注入して
    外装部材を形成して前記第１樹脂部材と前記第２樹脂部
    材とを接合する樹脂製圧力容器の製造方法において、前
    記第２樹脂部材の前記熱可塑性樹脂注入口と反対側に位
    置する部分に、前記キャビテーに連通するように前記第
    ２樹脂部材の外周方向に向かって溝状凹部を形成したこ
    とを特徴とする樹脂製圧力容器の製造方法。
  2. 【請求項２】 成形型内で中空状の第１樹脂部材の開口
    部を覆うように第２樹脂部材を接触させ、前記接触面の
    周囲に位置するキャビテー内に熱可塑性樹脂を注入して
    外装部材を形成した前記第１樹脂部材と前記第２樹脂部
    材とを接合する樹脂製圧力容器の製造方法において、上
    型の下面部で熱可塑性樹脂注入口と反対側の位置に、前
    記キャビテーに連通するように前記第２樹脂部材の外周
    方向に向かって溝状凹部を形成したことを特徴とする製
    造方法。
JP32823092A 1992-12-08 1992-12-08 樹脂製圧力容器の製造方法 Expired - Fee Related JP3371453B2 (ja)

Priority Applications (1)

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JP32823092A JP3371453B2 (ja) 1992-12-08 1992-12-08 樹脂製圧力容器の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32823092A JP3371453B2 (ja) 1992-12-08 1992-12-08 樹脂製圧力容器の製造方法

Publications (2)

Publication Number Publication Date
JPH06170953A JPH06170953A (ja) 1994-06-21
JP3371453B2 true JP3371453B2 (ja) 2003-01-27

Family

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Country Status (1)

Country Link
JP (1) JP3371453B2 (ja)

Also Published As

Publication number Publication date
JPH06170953A (ja) 1994-06-21

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