JP3622357B2

JP3622357B2 - Sheet assembly

Info

Publication number: JP3622357B2
Application number: JP22866096A
Authority: JP
Inventors: 聖導吉田; 真一堀田
Original assignee: Ushio Denki KK
Current assignee: Ushio Denki KK
Priority date: 1996-08-29
Filing date: 1996-08-29
Publication date: 2005-02-23
Anticipated expiration: 2016-08-29
Also published as: JPH1069853A

Description

【０００１】
【発明の属する技術分野】
この発明は希ガス放電灯の製造に使用されるシート組立体に関する。
【０００２】
【従来の技術】
従来のこの種希ガス放電灯は、例えば図１９〜図２１に示すように構成されている。即ち、Ａは例えばガラスバルブよりなる直管状の外囲器であって、その内面には希土類蛍光体，ハロリン酸塩蛍光体などの蛍光体よりなる発光層Ｂが形成されている。尚、外囲器Ａの内部空間には例えば水銀などの金属蒸気を含まないキセノンガスなどを主成分とする希ガスが所定量封入されている。一方、外囲器Ａの外周面には、例えばアルミニウムなどの不透光性の金属部材よりなる帯状の一対の外部電極Ｃ，Ｄが互いに対向するように貼着されており、その外周面は例えばポリエチレンテレフタレ−ト（ＰＥＴ）樹脂などの熱収縮性樹脂よりなる保護チュ−ブＥにて被覆・保護されている。又、外部電極Ｃ，Ｄの端部からは例えば銅などの端子Ｆ，Ｆがアルミニウム用の半田（以下、アルミ半田という）Ｇ，Ｇにて半田付けして導出されている。この端子Ｆ，Ｆの導出部分はほぼＬ形に屈曲された上で、外囲器Ａの端面側に配置されている。そして、導出部分のそれぞれの間にはシリコ−ン樹脂などのように絶縁性に優れた接着剤Ｈが注入・固化されており、これにより端子Ｆ，Ｆが固定される。
【０００３】
この希ガス放電灯は、外部電極Ｃ，Ｄに高周波高電圧（例えば２５ＫＨｚで２５００Ｖｏ−ｐ）を印加することによりキセノンガスの放電が生じ、キセノンガスの励起線によって発光層Ｂが励起されて発光するものであり、光は外部電極Ｃ，Ｄの端部Ｃａ，Ｄａ間の開口部Ｐから放出される。特に、この希ガス放電灯には水銀が用いられていないために、点灯後における光量の立ち上がりが急峻であり、点灯と同時に光量がほぼ１００％近くにまで達するという特徴を有している。このために、ファクシミリ，イメ−ジスキャナ，複写機などのＯＡ機器の原稿読取用の光源として好適するものである。
【０００４】
しかしながら、この希ガス放電灯は、次のように製造されるために、生産性の改善が難しいという問題がある。
【０００５】
即ち、まず、図２０〜図２１に示すように、外囲器Ａの外周面に一方の面に接着層を有する外部電極Ｃ，Ｄを、互いに所定の間隔だけ離隔するように、手作業によって貼付ける。次に、外部電極Ｃ，Ｄの端部に端子Ｆ，Ｆをアルミ半田Ｇ，Ｇにて半田付けすることによって、端子Ｆ，Ｆを外部電極Ｃ，Ｄから導出する。尚、外部電極Ｃ，Ｄの外囲器Ａの外周面への貼着は、外部電極Ｃ，Ｄに端子Ｆ，Ｆを半田付けした後に行なうこともできる。次に、端子Ｆ，Ｆの導出部分を図示点線状態から実線状態のようにほぼＬ形に屈曲して外囲器Ａの端面に沿わせると共に、それぞれの間に絶縁性に優れた接着剤Ｈを注入し固化させる。そして、端子Ｆ，Ｆの端部（接着剤Ｈに隣接する部分）に図示しない外部導出用のハ−ネスを半田付けする。次に、外囲器Ａをシリコ−ンワニス液に浸漬し引き上げた後に、例えば１時間程度乾燥させることにより、外囲器Ａ及び外部電極Ｃ，Ｄの表面にはシリコ−ンワニスの被膜が形成される。然る後、外囲器Ａに保護チュ−ブＥを被せると共に、この保護チュ−ブＥを１５０〜２００°Ｃ程度に加熱して熱収縮させ、外囲器Ａの外周面に保護チュ−ブＥを密着させることによって希ガス放電灯が製造される。
【０００６】
このように希ガス放電灯の製造工程には、外部電極Ｃ，Ｄを外囲器Ａの外周面に貼付ける工程があるが、外部電極Ｃ，Ｄが薄膜で帯状に構成されている上に、外囲器Ａの曲面部分に貼付ける必要があるために、機械化が難しい。従って、手作業によって貼付けているために、作業能率が低く、生産性を高めるには人海戦術を採用しなければならない。
【０００７】
その上、この希ガス放電灯の製造には、上述の手作業による外部電極Ｃ，Ｄの貼着工程の他に、例えば端子間への接着剤Ｈの注入・固化工程，シリコ−ンワニスの被着−乾燥工程，保護チュ−ブＥの装着−熱収縮工程などのように数多くの製造工程を経なければならないこともあって、量産性を高めることが難しいという問題もある。
【０００８】
【発明が解決しようとする課題】
従って、本出願人は、このような問題を解決するために、図２２〜図２４に示す希ガス放電灯を提案した。同図において、１は例えばガラスバルブにて密閉状に構成された直管状の外囲器であって、その内面には蛍光体よりなる発光層２が形成されており、密閉空間にはキセノンなどの希ガスが封入されている。この外囲器１の外周面にはシ−ト構体３が密着するように巻回して接着されている。このシ−ト構体３は、例えば外囲器１の全長とほぼ同程度の長さを有する透光性シ−ト４と、この透光性シ−ト４の一方の面に互いに離隔して配置された金属部材よりなる帯状の一対の外部電極５，６と、この外部電極５，６の端部に電気的に接続された端子５１，６１と、透光性シ−ト４の一方の面に付与された粘着ないし接着機能を有する接着層９とから構成されている。そして、シ−ト構体３の外囲器１への巻回状態において、外部電極５，６は外囲器１の外周面と透光性シ−ト４との間に配置されている。この外部電極５，６の一端５ａ，６ａの間には第１の開口部７が、他端５ｂ，６ｂの間には第２の開口部８がそれぞれ形成されており、発光層２からの光は主として第１の開口部７から放出される。
【０００９】
この希ガス放電灯は、例えば次のように製造される。まず、図２２に示すように、シ−ト構体３を展開した状態で所定の部位例えば組み立てステ−ジに載置する。次に、外囲器１をシ−ト構体３の透光性シ−ト４の一端４ａに、外囲器１の長手方向が外部電極５，６の長手方向に沿うように（平行となるように）位置させる。この状態で、外囲器１を透光性シ−ト４に若干押し付けた上で、外囲器１及び／又は透光性シ−ト４を移動させ、見掛け上、外囲器１が図示矢印方向（透光性シ−ト４の他端４ｂの方向）に移動するように転動させる。これによって、シ−ト構体３は、図２０に示すように、外囲器１の外周面に巻回され、接着層９によって接着される。
【００１０】
この方法によれば、外囲器１をシ−ト構体３の上で単に転動させるだけで、外部電極５，６を外囲器１の外周面に貼着できるし、外部電極５，６は透光性シ−ト４に予め所定の間隔で配列されているために、貼り付けの際に外部電極５，６の間隔を所定の間隔となるように調整する必要が全くなく、仮に手作業であっても作業能率を格段に改善できる。具体的には、従来方法では製造に６０分程度の時間を要していたものが、この方法によれば１分程度に短縮できる。
【００１１】
しかも、シ−ト構体３における透光性シ−ト４の一方の面には接着層９が形成されているために、外囲器１をシ−ト構体３の上で単に転動させるだけの単純動作によって、シ−ト構体３を外囲器１の外周面に巻回し密着（接着）させることができる。従って、機械化が可能となり、作業能率の改善と相俟って一層の量産効果が期待できるなどの優れた効果が得られるものである。
【００１２】
しかしながら、上述の方法によれば、シ−ト構体３の外囲器１の外周面への巻回・装着は従来方法に比較して格段に改善できるものの、シ−ト構体３の組み立てが面倒であり、ト−タル的に製造性の改善が望まれている。即ち、シ−ト構体３は、例えば帯状に成形された外部電極５，６の端部に端子５１，６１を電気的機械的に接続した後、この外部電極５，６を所定のサイズに切断された透光性シ−ト４の一方の面に、端子５１，６１の端部が透光性シ−ト４の側縁部から突出し、かつ外部電極５，６が互いに所定の間隔だけ離隔するように配置して接着し、さらに外部電極５，６を含む透光性シ−ト４の一方の面に接着層９を形成することによって組み立てられている。従って、対をなす外部電極５，６を１つの透光性シ−ト４に間隔調節しながら貼着しなければならないために、この工程での作業能率が低く、シ−ト構体３の組み立て性の改善が望まれている。
【００１３】それ故に、本発明の目的は、比較的に簡単な構成によって希ガス放電灯の生産性を改善できるシ−ト組立体を提供することにある。
【００１４】
【課題を解決するための手段】
従って、本発明は、上述の目的を達成するために、長尺状の透光性シ−トの一方の面に金属部材よりなる帯状の対をなす外部電極を互いに離隔して複数対配置すると共に、一方の面に接着層を形成してなるシ−ト構体と長尺状のセパレ−タとを、接着層がセパレ−タ側となるように一体化したことを特徴とし、第２の発明は、前記セパレ−タの、シ−ト構体の接着層と接する面に離型機能を付与したことを特徴とし、第３の発明は、前記シ−ト構体の、対をなす外部電極間に位置する透光性シ−ト部分に切離部を形成したことを特徴とし、第４の発明は、前記シ−ト構体における透光性シ−トの肉厚を２０〜１００μｍの範囲に設定したことを特徴とする。
【００１９】
【発明の実施の形態】
次に、本発明にかかる希ガス放電灯の実施例について図１〜図９を参照して説明する。同図において、１は例えばガラスバルブにて密閉状に構成された直管状の外囲器であって、その内面には希土類蛍光体，ハロリン酸塩蛍光体などの蛍光体よりなる発光層２が形成されているが、後述する第１の開口部（７）に対応する部分には発光層２を形成しないアパ−チャ部（光放出部）２ａが形成されている。特に、外囲器１の封着構造はガラスバルブの端部にディスク状の封着ガラス板１ａ，１ｂを封着して構成されているが、例えば単にガラスバルブを加熱しながら縮径加工し溶断して構成することもできる。尚、この外囲器１の密閉空間には水銀などの金属蒸気を含まない例えばキセノン（Ｘｅ），クリプトン（Ｋｒ），ネオン（Ｎｅ），ヘリウム（Ｈｅ）などの希ガスが単一又は混合して所定量封入されているが、キセノンを主成分とする希ガスを例えば２０〜１１０Ｔｏｒｒの圧力で封入することが望ましい。
【００２０】
この外囲器１の外周面にはシ−ト構体３が密着するように巻回されている。このシ−ト構体３は、例えば外囲器１の全長とほぼ同程度の長さを有し、かつ厚さが２０〜１００μｍの範囲に設定された透光性シ−ト４と、この透光性シ−ト４の一方の面に互いに所定の間隔だけ離隔配置して接着された肉厚が１０〜１００μｍの範囲に設定された不透光性の金属部材よりなる帯状の一対の外部電極５，６と、この外部電極５，６の端部に導電性接着剤５３，６３を用いて電気的に接続し、かつ透光性シ−ト４の端縁部分より突出するように配置された端子５１，６１と、端子５１，６１と外部電極５，６との重ね合わせ部分を覆うように被着された防湿機能を有する接着剤５４，６４と、透光性シ−ト４の一方の面に付与された粘着ないし接着機能を有する接着層９とから構成されている。特に、透光性シ−ト４としては、例えばポリエチレンテレフタレ−ト（ＰＥＴ）樹脂が好適するが、ポリエステル樹脂なども利用できる。又、接着層９としてはシリコ−ン系接着剤が好適するが、アクリル系，エポキシ系接着剤なども使用できる。
【００２１】
又、外部電極５，６及び端子５１，６１は、例えば腐食電位列が離れた位置にある金属部材にて構成されており、好ましくは外部電極５，６には帯状のアルミニウム箔が、端子５１，６１には後述する形状の銅が適用される。しかしながら、外部電極５，６としては導電性に優れ、かつ不透光性の金属部材であればアルミニウムの他に、ニッケル，銀などの金属部材も利用できるし、端子５１，６１としては導電性に優れ、かつ外部導出用のハ−ネスと半田付け可能な金属部材であれば銅の他に、ニッケル，ステンレス，Ｃｕ−Ｎｉ合金などの金属部材も利用できる。尚、外部電極５，６と端子５１，６１との電気的な接続は導電性接着剤の他、例えば超音波溶着，かしめなどの接続方法も適用し得る。
【００２２】
特に、シ−ト構体３において、端子５１，６１は外部電極５，６に電気的に接続される一方の端部５１ａ，６１ａの幅ｄが他方の端部５１ｂ，６１ｂの幅ｇより狭く設定されており、外部電極５，６からの導出部分がほぼＬ形に形成されている。そして、屈曲された他方の端部５１ｂ，６１ｂにはほぼＬ形の切り起し部５２，６２が形成されており、その切り起し部分には図示しない外部導出用のハ−ネスが挿入される孔５２ａ，６２ａが形成されている。尚、この端子５１，６１の一方の端部５１ａ，６１ａの幅ｄは外部電極５，６の幅Ｗに対し、０．１Ｗ≦ｄ≦０．５Ｗの関係が成立するように設定することが望ましく、又、端子５１，６１の肉厚は０．１〜０．５ｍｍの範囲が望ましい。
【００２３】
上述のシ−ト構体３は外囲器１の外周面に、外部電極５，６が外囲器１と透光性シ−ト４との間に位置するように装着されており、外部電極５の外面側において、透光性シ−ト４の一方の端部４ａに他方の端部４ｂを重ね合わせた上で接着されている。特に、シ−ト構体３の外囲器１への装着状態において、外部電極５，６の一端５ａ，６ａの間には第１の開口部７が、外部電極５，６の他端５ｂ，６ｂの間には第２の開口部８がそれぞれ形成されており、発光層２からの光は主としてアパ−チャ部２ａを介して第１の開口部７から放出される。尚、第１，第２の開口部７，８の開口角θ_１，θ_２はθ_１＞θ_２の関係に設定することが望ましいが、場合によってはθ_１＝θ_２又はθ_１＜θ_２の関係に設定することもできる。
【００２４】
さらに、外囲器１の端面（１ａ）には絶縁性（耐圧），難燃性に優れた絶縁部材にて成形加工されたキャップ１０が装着されている。このキャップ１０は例えばポリカ−ボネイト樹脂にて成形されており、例えばブロック状のキャップ本体１１と、キャップ本体１１の周縁部分に一体的に形成された一対のＬ形状の支持片１２，１２とから構成されている。特に、キャップ本体１１の中央部分には外面側から内面側（外囲器１の端面側）に貫通する孔１１ａが、外周部分には平坦状の側面部１１ｂ，１１ｂがそれぞれ形成されている。そして、このキャップ１０は外囲器１の端部に、キャップ本体１１が外囲器１の端面側に位置し、かつ支持片１２，１２が外囲器１の端部を支持するように配置され、孔１１ａ及びキャップ本体１１と外囲器１の端面（１ａ）との間には絶縁性に優れた接着剤１３が充実された上で固化されている。これによって、キャップ１０は外囲器１に固定（装着）される。その上、このキャップ１０の側面部１１ｂ，１１ｂには、外部電極５，６から導出された端子５１，６１の他方の端部５１ｂ，６１ｂがほぼ密接するように配置されている。尚、側面部１１ｂ，１１ｂに位置する端子部分には、図示しない外部導出用のハ−ネスが半田付けなどにより接続される。
【００２５】
この希ガス放電灯を製造するに先立って、シ−ト構体３を含むシ−ト組立体３Ａが準備される。このシ−ト組立体３Ａは例えば図１０〜図１２に示すように組み立てられる。まず、図１０（ａ）に示すように、例えば一方の面に離型機能を有する長尺状のセパレ−タ３Ｓを図示しない組立ステ−ジに載置すると共に、その一方の面にセパレ−タ３Ｓより幅が狭く、一方の面に接着層を有する長尺状の金属部材よりなる導電性シ−ト５Ｓを順に重ね合わせて接着する。尚、セパレ−タ３Ｓは、例えば厚さが７０μｍ程度のＰＥＴ樹脂が好適するが、材質，厚さは適宜に変更できる。特に、重ね合わせはセパレ−タ３Ｓと導電性シ−ト５Ｓとを別々のロ−ルから連続的に供給しながらロ−ラなどを利用して重ね合わせることが望ましい。そして、図示しないカッタ−によって導電性シ−ト５Ｓに、対をなす帯状の外部電極５，６が形成されるように切離部５Ｓａを順次に形成する。尚、この切離部５Ｓａは導電性シ−ト５Ｓのみが切断されるだけで、セパレ−タ３Ｓには切れ目が生じないように配慮されている。そして、外部電極として不要な部分５Ｓｂ，５Ｓｃをセパレ−タ３Ｓから、切離部５Ｓａを介して順次に分離（剥離）すると、同図（ｂ）に示すように、セパレ−タ３Ｓには対をなす外部電極５，６が所定の間隔で順に配列される。次いで、この外部電極５，６の端部に導電性接着剤５３，６３を順次に被着する。
【００２６】
次に、図１１（ａ）に示すように、導電性接着剤５３，６３の上に端子５１，６１の一方の端部５１ａ，６１ａを順次に重ね合わせる。尚、導電性接着剤５３，６３としては、例えばニッケル粉末を含むアクリル系の導電性接着剤が好適するが、ニッケル以外の金属粉末を含むアクリル系ないしそれ以外の樹脂母体を使用するものでもよい。次いで、同図（ｂ）に示すように、端子５１，６１の露出部分（端子５１，６１と外部電極５，６との重ね合わせ部分）に防湿機能を有する紫外線硬化型の接着剤５４，６４を、端子５１，６１の一方の端部５１ａ，６１ａがほぼ完全に覆われるように被着する。そして、接着剤５４，６４に紫外線を例えば１０〜３０秒程度照射し硬化させる。これによって、端子５１，６１は導電性接着剤５３，６３に仮固定される。尚、この接着剤５４，６４は紫外線硬化型以外の自然硬化型，熱硬化型なども適宜に使用できる。
【００２７】
次に、図１２（ａ）に示すように、外部電極５，６の全長より幅が広く、一方の面に接着層９を有する長尺状の透光性シ−ト４Ｓをセパレ−タ３Ｓの一方の面（外部電極５，６が接着されている面）に、外部電極５，６が完全に被覆されるように順に重ね合わせて接着する。尚、この透光性シ−ト４Ｓは予めロ−ルに巻回しておき、連続的に供給してセパレ−タ３Ｓに重ね合わせることもでき、この際に、ロ−ラなどによって挟持することによって接着性を高めることもできる。次に、図示しないカッタ−によって透光性シ−ト４Ｓに一定の間隔で切離部４Ｓｃを形成する。尚、この切離部４Ｓｃは透光性シ−ト４Ｓのみが切断されるだけで、セパレ−タ３Ｓには切れ目が生じないように配慮されている。次いで、同図（ｂ）に示すように、セパレ−タ３Ｓに例えばスポンジなどのように柔軟性ないし弾力性を有し、かつ透光性シ−ト４Ｓより幅の狭い長尺状のスペ−サ３Ｍを重ね合わせて図示しないロ−ルに巻回することにより、シ−ト組立体３Ａが組み立てられる。尚、スペ−サ３Ｍは、上述のように端子５１，６１の他方の端部にＬ形の屈曲部が形成されており、巻回した時にシ−ト組立体３Ａが竹の子状（幅方向の両端の巻回径が異なる状態）になる場合に使用されるが、特に、シ−ト組立体３Ａを巻回した際に幅方向の全体に亘ってほぼ同一径に巻回され、形態が崩れない場合には省略することもできる。従って、スペ−サ３Ｍの厚みは、シ−ト組立体３Ａの端部に配置される端子の形状や導電性接着剤，防湿機能を有する接着剤などによる形態の変形状態によってほぼ一義的に決められる。
【００２８】
このように構成されたシ−ト組立体３Ａを用いて希ガス放電灯は、例えば図１３〜図１７に示すように製造される。尚、図１３は、製造装置の概略図であって、例えばシ−ト組立体３Ａからシ−ト構体３を分離する分離装置１００と、分離されたシ−ト構体３を受け取って一定の方向に移送する移送装置２００と、移送装置２００から供給されたシ−ト構体３を外囲器１の外周面に巻回する巻回装置３００と、外囲器１のアパ−チャ部２ａが所定部位に位置するように位置決めした上で、巻回装置３００に供給する位置決め装置４００と、巻回装置３００から供給された外囲器１における透光性シ−ト４の重ね合わせ部分を超音波溶着する溶着装置５００とから構成されている。
【００２９】
まず、図１４〜図１５に示すように、シ−ト組立体３Ａは分離装置１００のロ−ル１０１に配設される。そして、スペ−サ３Ｍはロ−ル１０２に巻き取られるように、シ−ト組立体３Ａはバッファ部１０３を介してスクレ−パ１０４に移送されるようにセットされる。特に、スクレ−パ１０４には例えば１０°程度の鋭角な折り返し部が形成されており、セパレ−タ３Ｓはこの折り返し部に沿って一定のテンションを付与されてロ−ル１０５に巻き取られる。シ−ト組立体３Ａが図示矢印方向に送られ、それのシ−ト構体３がスクレ−パ１０４の下側に位置すると、その下側には移送装置２００の分離ステ−ジ２０１が配置されると共に、ステ−ジ２０１がシ−ト構体３に近接ないし密着して真空吸着される。そして、ステ−ジ２０１はシ−ト組立体３Ａの移動にほぼ同期して図示矢印方向に移動する。尚、ステ−ジ２０１はスライダ−２０２に固定されており、レ−ル２０３に沿って移動自在に構成されている。セパレ−タ３Ｓがスクレ−パ１０４の先端部１０４ａにて鋭角に折り返されると、同部分にてシ−ト構体３が扱かれ、セパレ−タ３Ｓから分離され始める。やがて、セパレ−タ３Ｓとステ−ジ２０１の移動に関連してシ−ト構体３は完全に分離され、図示点線のようにステ−ジ２０１に移されて所定位置まで移送される。尚、シ−ト構体における透光性シ−ト４Ｓには切離部４Ｓｃが適宜の間隔で形成されているために、スクレ−パ１０４の先端部１０４ａでの扱きによって確実に分離される。この分離されたシ−ト構体３が巻回装置３００に供給されると、ステ−ジ２０１は再び図１５の実線位置に復帰する。尚、ステ−ジ２０１の真空吸着機構は省略することも可能である。
【００３０】
次に、図１６（ａ）に示すように、巻回装置３００のステ−ジ３０１に載置されたシ−ト構体３はステ−ジ３０１に、例えば真空吸着された上で、図示しないＸ，Ｙ軸方向の位置調整装置（Ｘ−Ｙテ−ブル）によって所定位置に調整される。そして、位置決め装置４００にて、アパ−チャ部２ａが所定部位に位置するように位置決めされた外囲器１が巻回装置３００のステ−ジ３０１に供給される。この際に、外囲器１はシ−ト構体３における透光性シ−ト４の一端４ａに、外囲器１の長手方向が外部電極５，６の長手方向に沿うように（平行となるように）、しかもアパ−チャ部２ａと第１の開口部７とが巻回した状態で一致するように位置させられる。この状態で、従動的に回転し、かつ上下動可能な一対のロ−ラ３０２，３０２を外囲器１の上部に弾力的に押し付けるように位置させる。この状態において、ステ−ジ３０１を矢印方向Ｍに図示しない駆動機構によって移動させる。すると、外囲器１はロ−ラ３０２，３０２に押さえ付けられた状態で反時計方向に回転すると共に、ロ−ラ３０２，３０２も外囲器１の回転に応じて従動回転する。そして、同図（ｂ）に示すように、外囲器１の外周面の一部には透光性シ−ト４の一端４ａが密着状態で接着される。
【００３１】
次に、図１６（ｂ）に示すように、ステ−ジ３０１を矢印方向Ｎに移動させると、外囲器１はロ−ラ３０２，３０２に弾力的に押さえ付けられた状態で時計方向に回転すると共に、ロ−ラ３０２，３０２も外囲器１の回転に応じて従動回転する。この際に、シ−ト構体３の透光性シ−ト４は、既に外囲器１に接着された一端４ａを起点として、外囲器１の回転に応じて外周面に巻回され始める。そして、外囲器１が例えば３９０°程度回転（ほぼ１回転）すると、外囲器１の外周面には、同図（ｃ）に示すように、透光性シ−ト４が巻回され、それの他端４ｂは一端４ａ及び外部電極５の上に重ね合わされ、接着層９によって接着される。尚、ステ−ジ３０１の真空吸着力は外囲器１の回転による透光性シ−ト４の外囲器１への巻回・接着によって容易に離脱する程度に設定すれば、組み立て工程の途中で吸着停止（開放），吸着力の調整などを省略できる。
【００３２】
次に、図１７に示すように、溶着装置５００のステ−ジ５０１に、外周面にシ−ト構体３が巻回された外囲器１を供給し、透光性シ−ト４の重ね合わせ部分が上側となるように配置する。そして、重ね合わせ部分に周波数が例えば４０ＫＨｚの超音波溶着装置のホ−ン５０２の先端部分５０２ａを、同重ね合わせ部分が若干押圧されるように当接させる。これによって、超音波エネルギ−が透光性シ−ト４の重ね合わせ部分に伝達され、同部分は超音波溶着される。引き続き、ホ−ン５０２を隣接する重ね合わせ部分に移動させ、同様の操作を行い、同部分を溶着する。そして、ホ−ン５０２の当接位置を長手方向に沿って連続的ないし飛び飛びに移動させることにより、重ね合わせ部分の溶着を完了する。尚、超音波溶着はホ−ン５０２を長手方向に一定の速度で連続的に移動させて溶着することが望ましい。特に、この工程において、超音波溶着装置を複数台、例えば２台使用すれば、溶着作業を一層能率的に遂行できる。
【００３３】
次に、溶着の完了した外囲器１は溶着装置５００から図示しないキャップ１０の装着工程に移送される。まず、キャップ１０の内面側に接着剤１３を塗布した上で、キャップ１０を外囲器１の端部に、キャップ本体１１の内面側が接着剤１３を介して外囲器１の端面（１ａ）に接着され、かつ支持片１２，１２が外囲器１の端部を挟持するように装着する。尚、この際に、端子５１，６１の他方の端部５１ｂ，６１ｂはキャップ１０の側面部１１ｂ，１１ｂにほぼ当接されるように配置される。この段階で、キャップ１０は外囲器１に仮固定される。次に、キャップ１０の孔１１ａから接着剤１３を注入し、孔１１ａ及びキャップ本体１１の内面側と外囲器１の端面（１ａ）との隙間部分を充実させる。然る後、接着剤１３を固化させることによって、希ガス放電灯の製造がほぼ完了する。
【００３４】
この方法によれば、シ−ト組立体３Ａは長尺状で離型機能を有するセパレ−タ３Ｓに長尺状のシ−ト構体３を結果的に切離された状態で接着して構成されているために、シ−ト組立体３Ａをスクレ−パ１０４に沿って移動させると共に鋭角な折り返し部１０４ａにて扱くことによって、シ−ト構体３をセパレ−タ３Ｓから次々と簡単に分離することができ、巻回装置３００に一定の時間間隔で確実に供給することができる。従って、シ−ト構体３の外囲器１への巻回作業は勿論のこと、その巻回工程にシ−ト構体３を所定のインデックスで確実に供給でき、製造工程のト−タル的な作業能率を大幅に改善できる。
【００３５】
特に、スクレ−パ１０４を利用してシ−ト組立体３Ａから分離されるシ−ト構体３は、分離の際に、分離されるシ−ト構体３の移動速度にほぼ同期して移動する移送装置２００の分離ステ−ジ２０１に載置されるために、巻回装置３００での作業インデックスに合わせて適切に供給することができる。
【００３６】
しかも、シ−ト構体３は長尺状のセパレ−タ３Ｓの一方の面に接着層を有する長尺状の金属部材よりなる導電性シ−ト５Ｓを重ね合わせて接着し、導電性シ−ト５Ｓのみに切離部５Ｓａを形成して不所望部分を分離することによって複数の外部電極５，６を形成し、その上に、一方の面に接着層９を有する長尺状の透光性シ−ト４Ｓを重ね合わせて接着すると共に、対をなす外部電極間に切離部４Ｓｃを形成して構成されているために、従来のように１枚の透光性シ−トに予め成形された帯状の一対の外部電極を配置して構成するものに比較して格段に作業性を向上できる。
【００３７】
又、シ−ト構体３における透光性シ−ト４は、その厚さが２０〜１００μｍの範囲に設定されているために、外囲器１の外周面への巻回並びに端部４ａ，４ｂの安定した重合・接着性が得られる。しかしながら、その厚さが２０μｍ未満になると、十分の絶縁性を確保できなくなるし、逆に１００μｍを超えると、シ−トの腰が強くなって端部４ａ，４ｂの重ね合わせ部分が剥がれ易くなり、巻回作業も面倒になる。従って、シ−ト厚さは上記範囲に設定することが望ましい。
【００３８】
又、シ−ト構体３における外部電極５，６は、その肉厚が１０〜１００μｍの範囲に設定されているために、外囲器１の外周面にシ−ト構体３を、外部電極５，６及び透光性シ−ト４が外周面にほぼ倣うように円滑に巻回することができる。しかしながら、その肉厚が１０μｍ未満になると、外部電極５，６の透光性シ−ト４への貼付け時や外囲器１の外周面への巻回時に破れたり，しわになったりするために、作業性が著しく損なわれるようになる。逆に、肉厚が１００μｍを超えると、外部電極５，６の腰が強くなるために、外囲器１の外周面にシ−ト構体３を巻回した時に、外部電極５，６の端部５ａ，５ｂ，６ａ，６ｂが外囲器の外周面から浮き上がってしまい、外部電極間の絶縁劣化に伴う放電が生起され易くなる。従って、外部電極５，６の肉厚は上記範囲に設定することが望ましい。
【００３９】
さらに、端子５１，６１の外部電極５，６への接続は、長尺状のセパレ−タ３Ｓの上に連続的に配列された外部電極５，６の端部に順々に導電性接着剤５３，６３を被着した後、その上に、端子５１，６１を重ね合わせるだけで行なわれるために、生産性を大幅に改善できるし、さらに、その重ね合わせ部分を防湿機能を有する接着剤５４，６４にて覆えば、苛酷な環境下で使用されても端子と外部電極の接続部分における異種金属接触腐食を効果的に抑制できる。
【００４０】
特に、外部電極５，６の幅Ｗと端子５１，６１の一方の端部５１ａ，６１ａの幅ｄとの関係を、０．１Ｗ≦ｄ≦０．５Ｗに設定すれば、外部電極５，６と端子５１，６１との接続部分における異種金属接触腐食の発生を抑制できる。従って、長期間に亘って安定した動作状態を維持できる。しかしながら、端子５１，６１の幅ｄが０．１Ｗ未満になると、外部電極５，６と端子５１，６１との接触面積が小さくなりすぎて安定した接続状態の維持が難しくなるし、逆に、それの幅ｄが０．５Ｗを超えると、シ−ト構体３を外囲器１に巻回する際に、端子５１，６１が外囲器１の外周面に倣いにくくなる。従って、両者は上述の関係に設定することが望ましい。
【００４１】
図１８は本発明にかかるシ−ト構体３に適用する端子のそれぞれ異なった実施例を示すものであって、同図（ａ）に示す端子５１Ａはそれの他方の端部５１ｂを単にＬ形に屈曲しただけで、切り起し部を省略したものである。又、同図（ｂ）に示す端子５１Ｂは全体に亘ってほぼ同一幅の短冊状に構成したものである。特に、後者の端子５１Ｂはシ−ト組立体３Ａに適用した場合、シ−ト組立体３Ａのロ−ル１０１への巻回時に形態が竹の子状になりにくいために、ロ−ル１０１から分離部にシ−ト組立体３Ａを安定に供給できる。
【００４２】
尚、本発明は、何ら上記実施例にのみ制約されることなく、例えば外部電極は長尺状の導電性シ−トを長尺状のセパレ−タに接着した後に不要部分を切離・除去して形成する他、予め所定形状に成形したものをセパレ−タに接着することもできる。又、長尺状の導電性シ−ト，透光性シ−トへの接着層は予め形成しておく他、重ね合わせる前に被着したり、被着しながら重ね合わせることも可能である。又、端子は導電性シ−トと一体的に形成して導出することもできる。さらには、透光性シ−トの重ね合わせ部分の溶着は省略することもできる。
【００４３】
【発明の効果】
以上のように本発明によれば、シ−ト組立体は長尺状のセパレ−タに長尺状のシ−ト構体が結果的に切離された状態で接着して構成されているために、シ−ト組立体をスクレ−パに沿って移動させると共に鋭角な折り返し部にて扱くことによって、シ−ト構体をセパレ−タから次々と簡単に分離することができ、巻回装置に一定の時間間隔で確実に供給することができる。従って、シ−ト構体の外囲器への巻回作業は勿論のこと、その巻回工程にシ−ト構体を所定のインデックスで確実に供給でき、製造工程のト−タル的な作業能率を大幅に改善できる。
【００４４】
特に、スクレ−パを利用してシ−ト組立体から分離されるシ−ト構体を、分離の際に、分離されるシ−ト構体の移動速度にほぼ同期して移動する移送装置のステ−ジに載置されるようにすれば、シ−ト構体の受け渡しが円滑になり、巻回装置での作業インデックスに合わせて適切に供給することができる。
【００４５】
しかも、シ−ト構体を、長尺状のセパレ−タの一方の面に接着層を有する長尺状の金属部材よりなる導電性シ−トを重ね合わせて接着し、導電性シ−トのみに切離部を形成して不所望部分を分離することによって複数の外部電極を形成し、その上に、一方の面に接着層を有する長尺状の透光性シ−トを重ね合わせて接着すると共に、対をなす外部電極間に切離部を形成して構成すれば、従来のように１枚の透光性シ−トに予め成形された帯状の一対の外部電極を配置して構成するものに比較して格段に作業性を向上できる。
【図面の簡単な説明】
【図１】本発明にかかる希ガス放電灯の１実施例を示す図であって、同図（ａ）は要部の一部破断状態の側面図、同図（ｂ）は端子の斜視図。
【図２】図１（ａ）の正面図。
【図３】図２のＵ−Ｕ断面図。
【図４】図２のＶ−Ｖ断面図。
【図５】本発明にかかるキャップの斜視図。
【図６】図４のＷ−Ｗ断面図。
【図７】図１（ａ）の一部破断状態の側面図。
【図８】本発明にかかるシ−ト構体の展開図。
【図９】図８のＸ−Ｘ断面図。
【図１０】本発明にかかるシ−ト組立体の製造方法を説明するための図であって、同図（ａ）はセパレ−タに導電性シ−トを重ね合わせた状態を示す平面図、同図（ｂ）は導電性シ−トの不要部分を除去し、端部に導電性接着剤を被着した状態を示す平面図。
【図１１】本発明にかかるシ−ト組立体の製造方法を説明するための図であって、同図（ａ）は導電性接着剤に端子を載置した状態を示す平面図、同図（ｂ）は端子部分に接着剤を被着した状態を示す平面図。
【図１２】本発明にかかるシ−ト組立体の製造方法を説明するための図であって、同図（ａ）はセパレ−タに透光性シ−トを重ね合わせた状態を示す平面図、同図（ｂ）は同図（ａ）のＹ−Ｙ断面図。
【図１３】本発明にかかる希ガス放電灯の製造装置の概略平面図。
【図１４】図１３における分離装置及び移送装置の概略側面図。
【図１５】図１４に示す分離装置及び移送装置の要部拡大断面図。
【図１６】本発明にかかるシ−ト構体の外囲器への巻回方法を説明するための図であって、同図（ａ）はステ−ジに載置されたシ−ト構体の端部に外囲器を配置した状態を示す縦断面図、同図（ｂ）は外囲器の一部にシ−ト構体を接着した状態を示す縦断面図、同図（ｃ）は外囲器にシ−ト構体を巻回した状態を示す縦断面図。
【図１７】本発明にかかる透光性シ−トの重ね合わせ部分の溶着方法を説明するための縦断面図。
【図１８】本発明にかかる端子の異なった実施例を示す斜視図であって、同図（ａ）はＬ形に屈曲した状態を示し、同図（ｂ）は短冊状に構成したものを示す。
【図１９】従来例の縦断面図。
【図２０】従来方法を説明するための斜視図。
【図２１】図１９のＺ−Ｚ断面図。
【図２２】本発明の先行技術の縦断面図。
【図２３】図２２に示すシ−ト構体の展開図。
【図２４】図２２に示す希ガス放電灯の製造方法を説明するための縦断面図。
【符号の説明】
１外囲器
２発光層
３シ−ト構体
３Ｓ長尺状のセパレ−タ
３Ｍスペ−サ
４透光性シ−ト
４Ｓ長尺状の透光性シ−ト
４Ｓｃ切離部
４ａ，４ｂ端部
５，６外部電極
５Ｓ導電性シ−ト
５Ｓａ切離部
５Ｓｂ，５Ｓｃ不要部分
５１，５１Ａ，５１Ｂ，６１端子
５１ａ，６１ａ一方の端部
５１ｂ，６１ｂ他方の端部
５３，６３導電性接着剤
５４，６４接着剤
９接着層
１００分離装置
１０４スクレ−パ
１０４ａ先端部（折り返し部）
２００移送装置
２０１，３０１ステ−ジ
２０２スライダ−
２０３レ−ル
３００巻回装置
３０２ロ−ラ
４００位置決め装置
５００溶着装置
５０２ホ−ン[0001]
BACKGROUND OF THE INVENTION
This inventionSheet assembly used in the manufacture of rare gas discharge lampsAbout.
[0002]
[Prior art]
A conventional rare gas discharge lamp of the related art is configured as shown in FIGS. That is, A is a straight tubular envelope made of a glass bulb, for example, and a light emitting layer B made of a phosphor such as a rare earth phosphor or a halophosphate phosphor is formed on the inner surface thereof. Note that a predetermined amount of a rare gas containing, as a main component, xenon gas not containing a metal vapor such as mercury, for example, is sealed in the inner space of the envelope A. On the other hand, a pair of strip-like external electrodes C and D made of an opaque metal member such as aluminum are attached to the outer peripheral surface of the envelope A so as to face each other. For example, it is covered and protected by a protective tube E made of a heat-shrinkable resin such as polyethylene terephthalate (PET) resin. Further, terminals F and F such as copper are led out from the ends of the external electrodes C and D by soldering with aluminum solder (hereinafter referred to as aluminum solder) G and G, for example. The lead-out portions of the terminals F and F are bent substantially in an L shape and are arranged on the end face side of the envelope A. An adhesive H having excellent insulating properties, such as a silicone resin, is injected and solidified between the lead-out portions, whereby the terminals F and F are fixed.
[0003]
In this rare gas discharge lamp, a high frequency high voltage (for example, 2500 Vo-p at 25 KHz) is applied to the external electrodes C and D to cause discharge of xenon gas, and the emission layer B is excited by the xenon gas excitation line to emit light. The light is emitted from the opening P between the end portions Ca and Da of the external electrodes C and D. In particular, since no mercury is used in this rare gas discharge lamp, the amount of light rising after lighting is steep, and the amount of light reaches almost 100% simultaneously with lighting. For this reason, it is suitable as a light source for reading originals in office automation equipment such as a facsimile, an image scanner, and a copying machine.
[0004]
However, since this rare gas discharge lamp is manufactured as follows, there is a problem that it is difficult to improve productivity.
[0005]
That is, first, as shown in FIGS. 20 to 21, the external electrodes C and D having the adhesive layer on one surface on the outer peripheral surface of the envelope A are manually operated so as to be separated from each other by a predetermined distance. Paste. Next, the terminals F and F are derived from the external electrodes C and D by soldering the terminals F and F to the ends of the external electrodes C and D with aluminum solders G and G, respectively. The external electrodes C and D can be attached to the outer peripheral surface of the envelope A after the terminals F and F are soldered to the external electrodes C and D. Next, the lead-out portions of the terminals F and F are bent substantially into an L shape as shown from the dotted line state to the solid line state along the end face of the envelope A, and an adhesive H having excellent insulation between each of them. Inject and solidify. Then, an external lead harness (not shown) is soldered to the end portions (portions adjacent to the adhesive H) of the terminals F, F. Next, after the envelope A is dipped in the silicon varnish solution and pulled up, the envelope varnish film is formed on the surface of the envelope A and the external electrodes C and D by, for example, drying for about 1 hour. The Thereafter, the protective tube E is put on the envelope A, and the protective tube E is heated to about 150 to 200 ° C. to be thermally contracted, so that the outer peripheral surface of the envelope A is covered with the protective tube E. A rare gas discharge lamp is manufactured by bringing the tube E into close contact.
[0006]
As described above, in the manufacturing process of the rare gas discharge lamp, there is a step of attaching the external electrodes C and D to the outer peripheral surface of the envelope A. However, the external electrodes C and D are formed in a thin band shape. Since it is necessary to stick to the curved surface portion of the envelope A, mechanization is difficult. Therefore, since it is pasted by hand, work efficiency is low, and to improve productivity, human sea tactics must be adopted.
[0007]
In addition, in the manufacture of the rare gas discharge lamp, in addition to the above-described manual attachment process of the external electrodes C and D, for example, the injection and solidification process of the adhesive H between the terminals, the coating of the silicon varnish. There are also problems that it is difficult to increase the mass productivity because many manufacturing processes such as the wearing-drying process, the mounting of the protective tube E, and the heat shrinking process must be performed.
[0008]
[Problems to be solved by the invention]
Therefore, the present applicant has proposed a rare gas discharge lamp shown in FIGS. 22 to 24 in order to solve such a problem. In the figure, reference numeral 1 denotes a straight tubular envelope which is configured to be sealed with a glass bulb, for example, and a light emitting layer 2 made of a phosphor is formed on the inner surface thereof, and xenon or the like is formed in the sealed space. The rare gas is enclosed. The sheet structure 3 is wound and adhered to the outer peripheral surface of the envelope 1 so as to be in close contact. The sheet structure 3 is separated from each other on, for example, a translucent sheet 4 having substantially the same length as the entire length of the envelope 1 and one surface of the translucent sheet 4. A pair of strip-like external electrodes 5 and 6 made of a metal member, terminals 51 and 61 electrically connected to the ends of the external electrodes 5 and 6, and one of the translucent sheet 4 It is comprised from the adhesion layer 9 which has the adhesion thru | or adhesion | attachment function provided to the surface. In the state where the sheet structure 3 is wound around the envelope 1, the external electrodes 5 and 6 are disposed between the outer peripheral surface of the envelope 1 and the translucent sheet 4. A first opening 7 is formed between the one ends 5 a and 6 a of the external electrodes 5 and 6, and a second opening 8 is formed between the other ends 5 b and 6 b, respectively. Light is mainly emitted from the first opening 7.
[0009]
This rare gas discharge lamp is manufactured as follows, for example. First, as shown in FIG. 22, the sheet structure 3 is placed in a predetermined position, for example, an assembly stage, in a developed state. Next, the envelope 1 is placed on one end 4a of the translucent sheet 4 of the sheet structure 3 so that the longitudinal direction of the envelope 1 is along the longitudinal direction of the external electrodes 5 and 6 (parallel). Position). In this state, the envelope 1 is slightly pressed against the translucent sheet 4, and then the envelope 1 and / or the translucent sheet 4 are moved, and the envelope 1 is apparently illustrated. Roll so as to move in the direction of the arrow (the direction of the other end 4b of the translucent sheet 4). As a result, the sheet structure 3 is wound around the outer peripheral surface of the envelope 1 and bonded by the adhesive layer 9 as shown in FIG.
[0010]
According to this method, the external electrodes 5 and 6 can be adhered to the outer peripheral surface of the envelope 1 simply by rolling the envelope 1 on the sheet structure 3, and the external electrodes 5 and 6 Is arranged on the translucent sheet 4 at a predetermined interval in advance, it is not necessary to adjust the interval between the external electrodes 5 and 6 to be a predetermined interval at the time of pasting. Work efficiency can be greatly improved even for work. Specifically, the conventional method required about 60 minutes for production, but this method can reduce the time to about 1 minute.
[0011]
In addition, since the adhesive layer 9 is formed on one surface of the translucent sheet 4 in the sheet structure 3, the envelope 1 is simply rolled on the sheet structure 3. By the simple operation, the sheet structure 3 can be wound and adhered (adhered) to the outer peripheral surface of the envelope 1. Therefore, mechanization is possible, and excellent effects such as a further mass production effect can be expected in combination with an improvement in work efficiency.
[0012]
However, according to the above-described method, the winding and mounting of the sheet structure 3 around the outer peripheral surface of the envelope 1 can be remarkably improved as compared with the conventional method, but the assembly of the sheet structure 3 is troublesome. Therefore, improvement in manufacturability is desired in a total manner. That is, in the sheet structure 3, for example, after the terminals 51 and 61 are electrically and mechanically connected to the ends of the external electrodes 5 and 6 formed in a band shape, the external electrodes 5 and 6 are cut into a predetermined size. The ends of the terminals 51 and 61 protrude from the side edges of the translucent sheet 4 on one surface of the translucent sheet 4 and the external electrodes 5 and 6 are separated from each other by a predetermined distance. Further, the adhesive layer 9 is assembled by forming an adhesive layer 9 on one surface of the translucent sheet 4 including the external electrodes 5 and 6. Therefore, since the pair of external electrodes 5 and 6 must be attached to one translucent sheet 4 while adjusting the distance, the work efficiency in this process is low, and the assembly of the sheet structure 3 is performed. Improvement of sex is desired.
Therefore, the object of the present invention is to provide a relatively simple structure.To provide a sheet assembly capable of improving the productivity of a rare gas discharge lampThere is.
[0014]
[Means for Solving the Problems]
Therefore, according to the present invention, in order to achieve the above-mentioned object, a plurality of pairs of external electrodes forming a strip-like pair made of a metal member are spaced apart from each other on one surface of a long translucent sheet. WithThe second invention is characterized in that a sheet structure formed with an adhesive layer on one surface and a long separator are integrated so that the adhesive layer is on the separator side. The separator is provided with a mold release function on the surface of the separator that contacts the adhesive layer of the sheet structure, and the third invention is located between the pair of external electrodes of the sheet structure. According to a fourth aspect of the present invention, the thickness of the light-transmitting sheet in the sheet structure is set in the range of 20 to 100 μm. It is characterized by that.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a rare gas discharge lamp according to the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a straight tubular envelope sealed with, for example, a glass bulb, and a light emitting layer 2 made of a phosphor such as a rare earth phosphor or a halophosphate phosphor is formed on the inner surface thereof. Although formed, an aperture portion (light emitting portion) 2a that does not form the light emitting layer 2 is formed in a portion corresponding to a first opening (7) described later. In particular, the sealing structure of the envelope 1 is configured by sealing disc-shaped sealing glass plates 1a and 1b at the ends of the glass bulb. For example, the diameter of the glass bulb is reduced while heating the glass bulb. It can also be configured by fusing. The sealed space of the envelope 1 contains a single or mixed rare gas such as xenon (Xe), krypton (Kr), neon (Ne), helium (He) that does not contain metal vapor such as mercury. However, it is desirable to enclose a rare gas mainly composed of xenon at a pressure of 20 to 110 Torr, for example.
[0020]
The sheet structure 3 is wound around the outer peripheral surface of the envelope 1 so as to be in close contact therewith. The sheet structure 3 has, for example, a translucent sheet 4 having a length substantially the same as the entire length of the envelope 1 and a thickness set in a range of 20 to 100 μm. A pair of strip-like external electrodes made of a translucent metal member having a thickness set in the range of 10 to 100 μm and bonded to one surface of the light-sensitive sheet 4 while being spaced apart from each other by a predetermined distance. 5 and 6 are electrically connected to the end portions of the external electrodes 5 and 6 using conductive adhesives 53 and 63 and are arranged so as to protrude from the end edge portion of the translucent sheet 4. One of the translucent sheet 4 and the adhesives 54 and 64 having a moisture-proof function, which is applied so as to cover the overlapping portions of the terminals 51 and 61 and the external electrodes 5 and 6. It is comprised from the adhesion layer 9 which has the adhesion | attachment thru | or adhesion | attachment function provided to the surface of this. In particular, as the translucent sheet 4, for example, a polyethylene terephthalate (PET) resin is suitable, but a polyester resin or the like can also be used. The adhesive layer 9 is preferably a silicone adhesive, but an acrylic or epoxy adhesive can also be used.
[0021]
Further, the external electrodes 5 and 6 and the terminals 51 and 61 are made of, for example, a metal member at a position where the corrosion potential row is separated. Preferably, the external electrodes 5 and 6 are made of a strip-shaped aluminum foil and the terminals 51. 61, copper having a shape described later is applied. However, as the external electrodes 5 and 6, a metal member such as nickel or silver can be used in addition to aluminum as long as the metal member is excellent in conductivity and opaque, and the terminals 51 and 61 are conductive. In addition to copper, metal members such as nickel, stainless steel, and Cu—Ni alloys can also be used as long as they are excellent and can be soldered to external lead harnesses. For the electrical connection between the external electrodes 5 and 6 and the terminals 51 and 61, a connection method such as ultrasonic welding or caulking can be applied in addition to the conductive adhesive.
[0022]
In particular, in the sheet structure 3, the terminals 51 and 61 are set such that the width d of one end 51a, 61a electrically connected to the external electrodes 5 and 6 is narrower than the width g of the other end 51b, 61b. The lead-out portions from the external electrodes 5 and 6 are substantially L-shaped. Further, substantially L-shaped cut-and-raised portions 52 and 62 are formed at the other bent end portions 51b and 61b, and an external lead-out harness not shown is inserted into the cut-and-raised portions. Holes 52a and 62a are formed. The width d of one end 51a, 61a of the terminals 51, 61 may be set so that the relationship of 0.1W ≦ d ≦ 0.5W is established with respect to the width W of the external electrodes 5, 6. Desirably, the thickness of the terminals 51 and 61 is preferably in the range of 0.1 to 0.5 mm.
[0023]
The above-described sheet structure 3 is mounted on the outer peripheral surface of the envelope 1 so that the external electrodes 5 and 6 are positioned between the envelope 1 and the translucent sheet 4. On the outer surface side of 5, the other end portion 4 b is superposed on one end portion 4 a of the translucent sheet 4 and bonded. In particular, when the sheet structure 3 is attached to the envelope 1, the first opening 7 is provided between the one ends 5 a and 6 a of the external electrodes 5 and 6, and the other ends 5 b and 6 of the external electrodes 5 and 6 are provided. A second opening 8 is formed between 6b, and light from the light emitting layer 2 is emitted from the first opening 7 mainly through the aperture 2a. The opening angle θ of the first and second openings 7 and 8₁ , Θ₂ Is θ₁ > Θ₂ It is desirable to set the relationship to₁ = Θ₂ Or θ₁ <Θ₂ It is also possible to set the relationship.
[0024]
Further, a cap 10 molded with an insulating member having excellent insulating properties (pressure resistance) and flame retardance is attached to the end surface (1a) of the envelope 1. The cap 10 is formed of, for example, polycarbonate resin. For example, the cap 10 includes a block-shaped cap main body 11 and a pair of L-shaped support pieces 12 and 12 integrally formed on a peripheral portion of the cap main body 11. It is configured. In particular, a hole 11a penetrating from the outer surface side to the inner surface side (end surface side of the envelope 1) is formed in the central portion of the cap body 11, and flat side portions 11b and 11b are formed in the outer peripheral portion. The cap 10 is disposed at the end of the envelope 1 such that the cap body 11 is positioned on the end face side of the envelope 1 and the support pieces 12 and 12 support the end of the envelope 1. The adhesive 13 having excellent insulating properties is solidified between the hole 11a and the cap body 11 and the end face (1a) of the envelope 1 and then solidified. As a result, the cap 10 is fixed (attached) to the envelope 1. In addition, the other end portions 51b and 61b of the terminals 51 and 61 led out from the external electrodes 5 and 6 are arranged on the side surface portions 11b and 11b of the cap 10 so as to be in close contact with each other. An external lead harness (not shown) is connected to the terminal portions located on the side portions 11b and 11b by soldering or the like.
[0025]
Prior to manufacturing the rare gas discharge lamp, a sheet assembly 3A including the sheet structure 3 is prepared. The sheet assembly 3A is assembled as shown in FIGS. First, as shown in FIG. 10A, for example, a long separator 3S having a releasing function on one surface is placed on an assembly stage (not shown), and the separator is placed on one surface. A conductive sheet 5S made of a long metal member having a width narrower than that of the cover 3S and having an adhesive layer on one surface is sequentially stacked and bonded. The separator 3S is preferably a PET resin having a thickness of about 70 μm, for example, but the material and thickness can be changed as appropriate. In particular, it is desirable to superimpose the separator 3S and the conductive sheet 5S by using a roller or the like while continuously supplying the separator 3S and the conductive sheet 5S from separate rolls. Then, separation portions 5Sa are sequentially formed so that the strip-like external electrodes 5 and 6 are formed on the conductive sheet 5S by a cutter (not shown). It should be noted that the separation portion 5Sa is designed so that only the conductive sheet 5S is cut and no break is generated in the separator 3S. Then, when the portions 5Sb and 5Sc unnecessary as external electrodes are sequentially separated (separated) from the separator 3S through the separating portion 5Sa, as shown in FIG. The external electrodes 5 and 6 forming the above are sequentially arranged at a predetermined interval. Next, conductive adhesives 53 and 63 are sequentially attached to the ends of the external electrodes 5 and 6.
[0026]
Next, as shown in FIG. 11A, one end portions 51a and 61a of the terminals 51 and 61 are sequentially overlapped on the conductive adhesives 53 and 63, respectively. As the conductive adhesives 53 and 63, for example, an acrylic conductive adhesive containing nickel powder is preferable, but an acrylic or other resin matrix containing metal powder other than nickel may be used. . Next, as shown in FIG. 2B, ultraviolet curable adhesives 54 and 64 having a moisture-proof function on exposed portions of terminals 51 and 61 (overlapping portions of terminals 51 and 61 and external electrodes 5 and 6). Is attached so that one end 51a, 61a of the terminal 51, 61 is almost completely covered. Then, the adhesives 54 and 64 are cured by irradiating ultraviolet rays, for example, for about 10 to 30 seconds. As a result, the terminals 51 and 61 are temporarily fixed to the conductive adhesives 53 and 63. As the adhesives 54 and 64, a natural curing type other than the ultraviolet curing type, a thermosetting type, or the like can be used as appropriate.
[0027]
Next, as shown in FIG. 12A, a long translucent sheet 4S having a width wider than the entire length of the external electrodes 5 and 6 and having an adhesive layer 9 on one surface is separated by a separator 3S. One surface (the surface to which the external electrodes 5 and 6 are bonded) is sequentially overlapped and bonded so that the external electrodes 5 and 6 are completely covered. The translucent sheet 4S can be wound around a roll in advance, continuously supplied, and superposed on the separator 3S. At this time, the translucent sheet 4S can be sandwiched between rollers. The adhesion can also be improved. Next, the separating portions 4Sc are formed on the translucent sheet 4S at regular intervals by a cutter (not shown). Note that only the translucent sheet 4S is cut off in the separation portion 4Sc, and consideration is given to avoiding a break in the separator 3S. Next, as shown in FIG. 2B, the separator 3S has a long or narrow space having flexibility or elasticity such as a sponge and narrower than the light-transmitting sheet 4S. The sheet assembly 3A is assembled by overlapping the windings 3M and winding them around a roll (not shown). The spacer 3M is formed with an L-shaped bent portion at the other end of the terminals 51 and 61 as described above, and when wound, the sheet assembly 3A has a bamboo-like shape (in the width direction). In particular, when the sheet assembly 3A is wound, it is wound to substantially the same diameter over the entire width direction, and the form collapses. If not, it can be omitted. Accordingly, the thickness of the spacer 3M is almost uniquely determined by the shape of the terminal disposed at the end of the sheet assembly 3A, the state of deformation due to the conductive adhesive, the moisture-proof adhesive, and the like. It is done.
[0028]
A rare gas discharge lamp is manufactured as shown in FIGS. 13 to 17, for example, using the sheet assembly 3A configured as described above. FIG. 13 is a schematic diagram of the manufacturing apparatus. For example, the separating apparatus 100 for separating the sheet structure 3 from the sheet assembly 3A and the separated sheet structure 3 are received in a certain direction. A transfer device 200 for transferring the sheet, a winding device 300 for winding the sheet structure 3 supplied from the transfer device 200 around the outer peripheral surface of the envelope 1, and an aperture portion 2a of the envelope 1 After positioning so as to be located at the site, the superposition portion of the positioning device 400 supplied to the winding device 300 and the translucent sheet 4 in the envelope 1 supplied from the winding device 300 is ultrasonicated. It comprises a welding apparatus 500 for welding.
[0029]
First, as shown in FIGS. 14 to 15, the sheet assembly 3 </ b> A is disposed on the roll 101 of the separating apparatus 100. The sheet assembly 3A is set so as to be transferred to the scraper 104 via the buffer 103 so that the spacer 3M is wound around the roll 102. In particular, the scraper 104 is formed with a sharp turn portion of about 10 °, for example, and the separator 3S is wound around the roll 105 with a certain tension applied along the turn portion. When the sheet assembly 3A is sent in the direction of the arrow shown in FIG. 1, and the sheet assembly 3 is positioned below the scraper 104, the separation stage 201 of the transfer device 200 is disposed below the sheet assembly 3A. At the same time, the stage 201 is brought close to or in close contact with the sheet structure 3 and is vacuum-sucked. The stage 201 moves in the direction of the arrow shown in the figure almost in synchronization with the movement of the sheet assembly 3A. The stage 201 is fixed to the slider 202 and is configured to be movable along the rail 203. When the separator 3S is folded at an acute angle at the tip 104a of the scraper 104, the sheet structure 3 is handled at the same portion and begins to be separated from the separator 3S. Eventually, the sheet structure 3 is completely separated in relation to the movement of the separator 3S and the stage 201, and is moved to the stage 201 and transferred to a predetermined position as shown by a dotted line in the figure. In addition, since the separating portions 4Sc are formed at appropriate intervals in the translucent sheet 4S in the sheet structure, they are surely separated by handling at the tip 104a of the scraper 104. When the separated sheet structure 3 is supplied to the winding device 300, the stage 201 returns to the solid line position in FIG. The vacuum suction mechanism of the stage 201 can be omitted.
[0030]
Next, as shown in FIG. 16A, the sheet structure 3 placed on the stage 301 of the winding device 300 is vacuum-sucked on the stage 301, for example, X (not shown). , Y-axis direction position adjustment device (XY table) is adjusted to a predetermined position. Then, the envelope 1 positioned by the positioning device 400 so that the aperture portion 2a is positioned at a predetermined site is supplied to the stage 301 of the winding device 300. At this time, the envelope 1 is placed on one end 4a of the translucent sheet 4 in the sheet structure 3 so that the longitudinal direction of the envelope 1 is along the longitudinal direction of the external electrodes 5 and 6 (in parallel). In addition, the aperture 2a and the first opening 7 are positioned so as to coincide with each other in a wound state. In this state, the pair of rollers 302 and 302 that rotate freely and can move up and down are positioned so as to be elastically pressed against the upper portion of the envelope 1. In this state, the stage 301 is moved in the arrow direction M by a drive mechanism (not shown). Then, the envelope 1 rotates counterclockwise while being pressed against the rollers 302 and 302, and the rollers 302 and 302 are also rotated in accordance with the rotation of the envelope 1. Then, as shown in FIG. 2B, one end 4a of the translucent sheet 4 is adhered to a part of the outer peripheral surface of the envelope 1 in a close contact state.
[0031]
Next, as shown in FIG. 16 (b), when the stage 301 is moved in the arrow direction N, the envelope 1 is pressed clockwise by the rollers 302, 302 in the clockwise direction. While rotating, the rollers 302 and 302 are also driven to rotate in accordance with the rotation of the envelope 1. At this time, the translucent sheet 4 of the sheet structure 3 starts to be wound around the outer peripheral surface in accordance with the rotation of the envelope 1, starting from the one end 4a already bonded to the envelope 1. . When the envelope 1 rotates, for example, about 390 ° (substantially one rotation), a translucent sheet 4 is wound around the outer peripheral surface of the envelope 1 as shown in FIG. The other end 4 b is superimposed on the one end 4 a and the external electrode 5, and is bonded by the adhesive layer 9. If the vacuum suction force of the stage 301 is set to such an extent that it can be easily detached by winding and bonding the translucent sheet 4 around the envelope 1 by the rotation of the envelope 1, It is possible to omit adsorption stop (open) and adjustment of adsorption force during the process.
[0032]
Next, as shown in FIG. 17, the envelope 1 having the sheet structure 3 wound around the outer peripheral surface is supplied to the stage 501 of the welding apparatus 500, and the light-transmitting sheet 4 is overlaid. Arrange so that the mating part is on the upper side. Then, the tip end portion 502a of the horn 502 of the ultrasonic welding apparatus having a frequency of, for example, 40 KHz is brought into contact with the overlapping portion so that the overlapping portion is slightly pressed. As a result, the ultrasonic energy is transmitted to the overlapping portion of the translucent sheet 4, and the same portion is ultrasonically welded. Subsequently, the horn 502 is moved to the adjacent overlapping portion, the same operation is performed, and the same portion is welded. Then, the welding position of the overlap portion is completed by moving the contact position of the horn 502 continuously or jumping along the longitudinal direction. It should be noted that ultrasonic welding is preferably performed by continuously moving the horn 502 in the longitudinal direction at a constant speed. In particular, in this step, if a plurality of, for example, two ultrasonic welding apparatuses are used, the welding operation can be performed more efficiently.
[0033]
Next, the envelope 1 that has been welded is transferred from the welding device 500 to a mounting process of the cap 10 (not shown). First, after the adhesive 13 is applied to the inner surface side of the cap 10, the cap 10 is placed on the end of the envelope 1, and the inner surface side of the cap body 11 is placed on the end surface (1 a) of the envelope 1 via the adhesive 13. The support pieces 12 and 12 are attached so as to sandwich the end portion of the envelope 1. At this time, the other end portions 51 b and 61 b of the terminals 51 and 61 are disposed so as to be substantially in contact with the side surface portions 11 b and 11 b of the cap 10. At this stage, the cap 10 is temporarily fixed to the envelope 1. Next, the adhesive 13 is injected from the hole 11a of the cap 10, and the gap portion between the hole 11a and the inner surface side of the cap body 11 and the end surface (1a) of the envelope 1 is enriched. Thereafter, the adhesive 13 is solidified to almost complete the production of the rare gas discharge lamp.
[0034]
According to this method, the sheet assembly 3A is constructed by adhering the long sheet structure 3 to the separator 3S having a long and releasing function, with the long sheet structure 3 being separated as a result. Therefore, by moving the sheet assembly 3A along the scraper 104 and handling the sheet assembly 3A with the sharp turn-back portion 104a, the sheet assembly 3 can be easily and easily moved from the separator 3S one after another. They can be separated and can be reliably supplied to the winding device 300 at regular time intervals. Therefore, the sheet structure 3 can be reliably supplied with a predetermined index in the winding process as well as the winding work of the sheet structure 3 around the envelope 1, and the manufacturing process can be totally performed. Work efficiency can be greatly improved.
[0035]
In particular, the sheet structure 3 separated from the sheet assembly 3A using the scraper 104 moves in synchronization with the moving speed of the separated sheet structure 3 during the separation. Since it is placed on the separation stage 201 of the transfer device 200, it can be appropriately supplied in accordance with the work index of the winding device 300.
[0036]
In addition, the sheet structure 3 is formed by superposing and adhering a conductive sheet 5S made of a long metal member having an adhesive layer on one surface of the long separator 3S. A plurality of external electrodes 5 and 6 are formed by forming a separation portion 5Sa only in the groove 5S and separating an undesired portion, and a long light transmission having an adhesive layer 9 on one surface thereon Since the sheet 4S is overlapped and bonded, and the separation part 4Sc is formed between the pair of external electrodes, it is previously formed on one sheet of translucent sheet as in the prior art. The workability can be remarkably improved as compared with a structure in which a pair of molded strip-shaped external electrodes are arranged.
[0037]
Further, the translucent sheet 4 in the sheet structure 3 is set in a range of 20 to 100 μm, so that it is wound around the outer peripheral surface of the envelope 1 and the end portions 4a, 4a, Stable polymerization / adhesion of 4b is obtained. However, if the thickness is less than 20 μm, sufficient insulation cannot be ensured. Conversely, if the thickness exceeds 100 μm, the sheet is stiff and the overlapping portions of the end portions 4 a and 4 b are easily peeled off. Also, winding work becomes troublesome. Therefore, it is desirable to set the sheet thickness within the above range.
[0038]
Further, since the thickness of the external electrodes 5 and 6 in the sheet structure 3 is set in the range of 10 to 100 μm, the sheet structure 3 is disposed on the outer peripheral surface of the envelope 1. 6 and the translucent sheet 4 can be smoothly wound so as to substantially follow the outer peripheral surface. However, if the thickness is less than 10 μm, the outer electrodes 5 and 6 may be torn or wrinkled when the outer electrodes 5 and 6 are attached to the translucent sheet 4 or wound around the outer peripheral surface of the envelope 1. In addition, workability is significantly impaired. On the contrary, when the thickness exceeds 100 μm, the outer electrodes 5 and 6 become stiff, so when the sheet structure 3 is wound around the outer peripheral surface of the envelope 1, The portions 5a, 5b, 6a and 6b are lifted from the outer peripheral surface of the envelope, and discharge due to insulation deterioration between the external electrodes is likely to occur. Therefore, it is desirable to set the thickness of the external electrodes 5 and 6 within the above range.
[0039]
Furthermore, the connection of the terminals 51 and 61 to the external electrodes 5 and 6 is performed by sequentially connecting the conductive adhesive to the end portions of the external electrodes 5 and 6 continuously arranged on the long separator 3S. Since the process is performed by simply overlapping the terminals 51 and 61 after the 53 and 63 are deposited, the productivity can be greatly improved, and the overlapping part is further provided with an adhesive 54 having a moisture-proof function. 64, it is possible to effectively suppress dissimilar metal contact corrosion at the connection portion between the terminal and the external electrode even when used in a harsh environment.
[0040]
In particular, if the relationship between the width W of the external electrodes 5 and 6 and the width d of one end 51a, 61a of the terminals 51, 61 is set to 0.1W ≦ d ≦ 0.5W, the external electrodes 5, 6 And the occurrence of contact corrosion of dissimilar metals at the connection portions between the terminals 51 and 61 can be suppressed. Accordingly, it is possible to maintain a stable operation state over a long period of time. However, when the width d of the terminals 51 and 61 is less than 0.1 W, the contact area between the external electrodes 5 and 6 and the terminals 51 and 61 becomes too small to make it difficult to maintain a stable connection state. If the width d exceeds 0.5 W, the terminals 51 and 61 are less likely to follow the outer peripheral surface of the envelope 1 when the sheet structure 3 is wound around the envelope 1. Therefore, it is desirable to set both in the above relationship.
[0041]
FIG. 18 shows different embodiments of terminals applied to the sheet structure 3 according to the present invention. The terminal 51A shown in FIG. 18 (a) has an L-shaped end 51b. In this case, the cut and raised part is omitted. Further, the terminal 51B shown in FIG. 5B is formed in a strip shape having substantially the same width throughout. In particular, when the latter terminal 51B is applied to the sheet assembly 3A, it is difficult to form a bamboo shoot when the sheet assembly 3A is wound around the roll 101. Therefore, the terminal 51B is separated from the roll 101. The sheet assembly 3A can be stably supplied to the section.
[0042]
The present invention is not limited to the above-described embodiments. For example, external electrodes are separated and removed after bonding a long conductive sheet to a long separator. In addition to the above, it is also possible to adhere a pre-shaped product to the separator. In addition, the adhesive layer to the long conductive sheet and translucent sheet may be formed in advance, or may be applied before or after being overlapped. . The terminal can also be led out integrally with the conductive sheet. Furthermore, the welding of the overlapped portion of the translucent sheet can be omitted.
[0043]
【The invention's effect】
As described above, according to the present invention, the sheet assembly is constructed by adhering the long sheet structure to the long separator in a state where the long sheet structure is separated as a result. In addition, the sheet assembly can be easily separated from the separator one after another by moving the sheet assembly along the scraper and handling it at an acute turn-back portion. Can be reliably supplied at regular time intervals. Therefore, the sheet structure can be reliably supplied with a predetermined index to the winding process as well as the winding work of the sheet structure on the envelope, and the total work efficiency of the manufacturing process can be improved. Can greatly improve.
[0044]
In particular, the sheet structure separated from the sheet assembly by using the scraper moves in synchronism with the moving speed of the separated sheet structure during the separation. -If it mounts on a sheet | seat, delivery of a sheet | seat structure will become smooth, and it can supply appropriately according to the work index in a winding device.
[0045]
In addition, the sheet structure is bonded by superimposing a conductive sheet made of a long metal member having an adhesive layer on one surface of the long separator. A plurality of external electrodes are formed by separating the undesired portions by forming a separation portion, and a long translucent sheet having an adhesive layer on one surface is overlaid thereon. If it is formed by forming a separating portion between a pair of external electrodes while bonding, a pair of strip-shaped external electrodes previously formed on a single translucent sheet is disposed as in the prior art. Workability can be significantly improved compared to the components to be configured.
[Brief description of the drawings]
FIG. 1 is a view showing one embodiment of a rare gas discharge lamp according to the present invention, in which FIG. 1 (a) is a side view of a partially broken state of an essential part, and FIG. 1 (b) is a perspective view of a terminal. .
FIG. 2 is a front view of FIG.
3 is a cross-sectional view taken along the line U-U in FIG. 2;
4 is a cross-sectional view taken along line VV in FIG.
FIG. 5 is a perspective view of a cap according to the present invention.
6 is a cross-sectional view taken along WW in FIG. 4;
FIG. 7 is a side view of the partially broken state of FIG.
FIG. 8 is a development view of the sheet structure according to the present invention.
9 is a sectional view taken along line XX in FIG.
FIG. 10 is a view for explaining a method for manufacturing a sheet assembly according to the present invention, in which FIG. 10 (a) is a plan view showing a state in which a conductive sheet is superimposed on a separator. FIG. 5B is a plan view showing a state where an unnecessary portion of the conductive sheet is removed and a conductive adhesive is applied to the end portion.
FIG. 11 is a view for explaining a method for manufacturing a sheet assembly according to the present invention, in which FIG. 11 (a) is a plan view showing a state in which a terminal is placed on a conductive adhesive; (B) is a top view which shows the state which adhered the adhesive agent to the terminal part.
FIG. 12 is a view for explaining a method for manufacturing a sheet assembly according to the present invention, in which FIG. 12 (a) is a plan view showing a state in which a light-transmitting sheet is superimposed on a separator; The figure and the figure (b) are YY sectional views of the figure (a).
FIG. 13 is a schematic plan view of a rare gas discharge lamp manufacturing apparatus according to the present invention.
14 is a schematic side view of the separation device and the transfer device in FIG.
15 is an enlarged cross-sectional view of a main part of the separation device and the transfer device shown in FIG.
FIG. 16 is a view for explaining a method of winding the sheet structure around the envelope according to the present invention, in which FIG. 16 (a) shows the sheet structure placed on the stage; The longitudinal cross-sectional view which shows the state which has arrange | positioned the envelope to the edge part, the same figure (b) is a longitudinal cross-sectional view which shows the state which adhere | attached the sheet structure to a part of the envelope, and the same figure (c) is an outside. The longitudinal cross-sectional view which shows the state which wound the sheet | seat structure around the envelope.
FIG. 17 is a longitudinal sectional view for explaining a method of welding the overlapped portion of the translucent sheet according to the present invention.
18A and 18B are perspective views showing different embodiments of the terminal according to the present invention, in which FIG. 18A shows a bent state in an L shape, and FIG. 18B shows a strip-shaped configuration. Show.
FIG. 19 is a longitudinal sectional view of a conventional example.
FIG. 20 is a perspective view for explaining a conventional method.
21 is a cross-sectional view taken along the line ZZ in FIG.
FIG. 22 is a longitudinal sectional view of the prior art of the present invention.
23 is a development view of the sheet structure shown in FIG.
24 is a longitudinal sectional view for explaining a method of manufacturing the rare gas discharge lamp shown in FIG.
[Explanation of symbols]
1 Envelope
2 Light emitting layer
3 Sheet structure
3S long separator
3M Spacer
4 Translucent sheet
4S long translucent sheet
4Sc separation part
4a, 4b end
5,6 External electrode
5S conductive sheet
5Sa separation part
5Sb, 5Sc Unnecessary part
51, 51A, 51B, 61 terminals
51a, 61a One end
51b, 61b The other end
53,63 Conductive adhesive
54,64 Adhesive
9 Adhesive layer
100 Separator
104 Scraper
104a Tip (folded part)
200 Transfer device
201, 301 stage
202 slider
203 rail
300 winding device
302 Roller
400 Positioning device
500 welding equipment
502 horn

Claims

A plurality of pairs of external electrodes forming a band-like pair made of metal members are arranged on one side of a long translucent sheet, and an adhesive layer is formed on one side. A sheet assembly in which a body structure and a long separator are integrated so that the adhesive layer is on the separator side.

The separator - other, shea - sheet of claim 1, wherein the imparted with releasing function surface in contact with the adhesive layer of the bets structure - DOO assembly.

The sheet - DOO assembly, translucent sheet is positioned between the external electrodes paired - characterized in that the formation of the separating portion in the root section of claim 1, wherein sheet - DOO assembly.

The sheet - translucent sheet in preparative assembly - claim 1, wherein the sheet which is characterized in that setting the thickness of the bets in the range of 20 to 100 [mu] m - DOO assembly.