JP2004195712A - Simultaneous biaxial stretching machine for sheetlike article - Google Patents

Simultaneous biaxial stretching machine for sheetlike article Download PDF

Info

Publication number
JP2004195712A
JP2004195712A JP2002364621A JP2002364621A JP2004195712A JP 2004195712 A JP2004195712 A JP 2004195712A JP 2002364621 A JP2002364621 A JP 2002364621A JP 2002364621 A JP2002364621 A JP 2002364621A JP 2004195712 A JP2004195712 A JP 2004195712A
Authority
JP
Japan
Prior art keywords
sheet
shape
gripping
biaxial stretching
simultaneous biaxial
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.)
Granted
Application number
JP2002364621A
Other languages
Japanese (ja)
Other versions
JP3732175B2 (en
Inventor
Hironobu Ueda
博信 上田
Ichiro Nakajima
一郎 中嶋
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2002364621A priority Critical patent/JP3732175B2/en
Publication of JP2004195712A publication Critical patent/JP2004195712A/en
Application granted granted Critical
Publication of JP3732175B2 publication Critical patent/JP3732175B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Advancing Webs (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simultaneous biaxial stretching machine for a sheetlike article which enhances the productivity of a product film without depending on the outer diameter of a roll bearing and realizes speed-up further while saving maintenance and reducing cost. <P>SOLUTION: In the simultaneous biaxial stretching machine, an endless link device 3 is constituted of a plurality of equal length link devices 31 which have a large number of grippers 2 for gripping the end parts of a thermoplastic resin sheetlike article 1 provided to both side ends of the sheetlike article 1 and is formed into a folding scale-like form. This endless link device 3 is guided along guide rails 5-7 arranged to broaden an advance direction to gradually expand the gripping pitch of the grippers to simultaneously stretch the sheetlike article 1, of which the end parts are gripped by the grippers, in two longitudinal and lateral directions. The shape of the gripping parts 21, which grip the end parts of the sheetlike article 1 in a surface contact state, of the grippers 2 is set to an oval shape, an approximately oval shape or a rectangular shape having a curved line part at its single side corner part. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、シート状物、例えば熱可塑性樹脂フィルム等を縦方向及び横方向に同時に連続的に延伸するシート状物の同時二軸延伸機に関するものである。
【０００２】
【従来の技術】
従来、連続したフィルムを縦方向（ＭＤ方向）及び横方向（ＴＤ方向）の両軸に同時でかつ連続的に延伸するための装置は公知とされている。一般にかかる公知の装置は、シート状物の端部を把持する複数の掴み装置をシート状物の両側端に具備し、折尺状に形成された複数個の等長リンク装置より構成された無端リンク装置を設け、該無端リンク装置をシート状物の入口側スプロケットより駆動することにより運動方向に末広がり状に配置されたガイドレールに案内されて掴みピッチを徐々に拡大してシート状物を縦横二方向に同時に延伸し、該延伸した後シート状物を掴み装置から外して上記無端リンク装置を出口側スプロケットにより駆動して入口側スプロケットに戻るように構成される。
【０００３】
このようなガイドレール内を等長リンクが角度を変化させて進む延伸法は、転がり軸受けの摩擦係数μ、各摺動部の摩擦抵抗と延伸区間あるいはガイドレールによって拘束される区間のリンク数ｎにより荷重が決められ、延伸速度等によりその寿命が決定される。例えば、軸受け外径を小さくし、最初の掴みピッチを小さくすることはリンク数増加による荷重の増大、軸受け円周長さの減少による回転数の増大、及び、軸受けの負荷容量の減少等、悪循環を来たす。
【０００４】
一方、延伸された製品のシート状物（以下、製品フィルムと記す）は、掴み装置に支持されていない端面がくびれ、弓形のしわが形成される。このようなしわは製品フィルムに厚さむらを生じさせ、かつ製品としての歩留りを低下させる等、非常に不経済である。このため、掴み装置の最初のピッチは製品フィルムの仕上りに大変重要な因子となり、掴みピッチを小さくすることが製品フィルムの生産性向上に寄与すると考える。
【０００５】
このように、従来の公知例では掴みピッチに関して相反関係が成立し、機械側並びに製品フィルム側の両面の経済性を確保させるためには、ハード及びプロセスの両面から見た好適設計や十分なテスト期間を含めたノウハウの蓄積が必要不可欠となる。
【０００６】
また、上記課題を解決するための公知例として、特公昭４４−７１５５号公報に、既存の掴み装置（既存のリンク装置を総称して親リンクと記載）とは別に、等長リンクを連結するリンクプレートに掴み装置（総称して子リンクと記載）を配設することが開示されている。この公知例によれば、上記転がり軸受けの外径に依存することなく、掴みピッチを小さくでき、製品フィルムの生産性向上に寄与するものと考えるが、構成部材の増加に伴うメンテナンス性やコストの増加、及び、更なる高速化のための軽量化に際し、課題を有すると考える。
【０００７】
【特許文献１】
特公昭４４−７１５５号公報
【０００８】
【発明が解決しようとする課題】
本発明の目的は、上記課題に対し、転がり軸受けの外径に依存することなく製品フィルムの生産性を向上させ、かつ、省メンテナンス、低コストで、更なる高速化を実現できるシート状物の同時二軸延伸機を提供することにある。
【０００９】
【課題を解決するための手段】
上記目的を達成するために、本発明は、熱可塑性樹脂のシート状物の端部を把持する複数の掴み装置を前記シート状物の両側端に具備し、折尺状に形成された複数個の等長リンク装置より構成された無端リンク装置を設け、該無端リンク装置をシート状物の入口側スプロケットより駆動することにより進行方向に末広がり状に配置されたガイドレールに案内されて前記掴み装置の掴みピッチを徐々に拡大させて前記端部が把持されたシート状物を縦横二方向に同時に延伸し、さらに該延伸後前記シート状物の端部を前記掴み装置から外して前記無端リンク装置を出口側スプロケットにより駆動して前記入口側スプロケットに戻るように構成したシート状物の同時二軸延伸機であって、前記掴み装置の前記シート状物の端部と面接触して把持する把持部の形状を、前記シート状物の進行方向に対して該進行方向に直角な方向に比べて長くして少なくとも前記シート状物中央側に位置する角部を曲線で形成したことを特徴とする。
【００１０】
また、本発明は、前記シート状物の同時二軸延伸機において、前記把持部の形状を、楕円形状または近似楕円形状に形成したことを特徴とする。また、本発明は、前記シート状物の同時二軸延伸機において、前記楕円形状または近似楕円形状の長径を前記シート状物の進行方向にほぼ平行にしたことを特徴とする。また、本発明は、前記シート状物の同時二軸延伸機において、前記楕円形状または近似楕円形状の短径／長径の比率を０．５〜１．０未満としたことを特徴とする。
【００１１】
また、本発明は、前記シート状物の同時二軸延伸機において、前記把持部の形状を、前記シート状物の進行方向にほぼ平行な方向を長辺とする矩形を基本形状にして該矩形の少なくとも前記シート状物中央側に位置する角部を曲線で形成したことを特徴とする。また、本発明は、前記シート状物の同時二軸延伸機において、前記把持部の形状を、前記シート状物の進行方向にほぼ平行な方向を長辺とする矩形を基本形状にして該矩形の４つの角部を曲線で形成したことを特徴とする。
【００１２】
また、本発明は、前記シート状物の同時二軸延伸機における前記把持部の形状において、シート状物の進行方向にほぼ平行な方向における最大長さを、前記掴み装置の最初のピッチＰ１で除した値として０．４〜１．０未満とし、好ましくは０．４〜０．８とすることを特徴とする。
【００１３】
【発明の実施の形態】
本発明に係るシート状物、例えば熱可塑性樹脂フィルム等を縦方向及び横方向に同時に連続的に延伸するシート状物の同時二軸延伸機の実施の形態を図面を用いて説明する。
【００１４】
図１は本発明に係る同時二軸延伸機の一実施の形態を示す平面図、図２は図１に示す等長リンク３１の断面図で、その構成及び動作は以下の通りである。
【００１５】
即ち、同時二軸延伸機は、例えば熱可塑性樹脂フィルム等のシート状物１の端部を把持する複数の掴み装置２をシート状物１の両側端に具備し、折尺状に形成された複数個の等長リンク装置３１より構成された無端リンク装置（図中リンクの一部並びに片側の無端リンクは省略）３を設け、該無端リンク装置３をシート状物１の入口側スプロケット４で駆動することにより進行方向に末広がり状に配置されたガイドレール５、６および７に案内されて上記掴み装置２の掴みピッチをＰ１からＰ２に徐々に拡大させて前記端部が把持されたシート状物１を縦横二方向に同時に延伸させ、さらに該延伸後上記シート状物１の端部を前記掴み装置２から外して上記無端リンク装置３を出口側スプロケット８により駆動して上記入口側スプロケット４に戻るように構成される。
【００１６】
前記ガイドレール５、６、７は一対の組になった案内溝を有するもので、シート状物１に近いほうのシート側ガイド５と中間ガイド６との間に形成される案内溝にはシート状物１を把持する掴み装置２が連結された一対のシート側リンクプレート１５上に設けられたリンク軸１０（図２）が転がり軸受けローラ９を介して保持され、他方の反シート側ガイド７と中間ガイド６との間に形成された案内溝には掴み装置を有さない一対の反シート側リンクプレート１２上に設けられたリンク軸１１（図２）が転がり軸受けローラ９を介して保持され、上記リンク軸１０と上記リンク軸１１との間は例えば上記シート側リンクプレート１５により連結される。そして、上記シート側リンクプレート１５に掴み装置２が一体的に設けられている。このため、掴み装置２はリンクの折尺部に一つおきに連結する構成となり、シート状物１を掴む最初のピッチＰ１は案内溝に保持される転がり軸受けローラ９の外径によって決定される。
【００１７】
このようなガイドレール内を等長リンク３１が角度を変化させて進む延伸法は、転がり軸受けの摩擦係数μ、各摺動部の摩擦抵抗と延伸区間あるいはガイドレールによって拘束される区間のリンク数ｎにより荷重が決められ、延伸速度等によりその寿命が決定される。例えば、軸受けローラ９の外径を小さくし、最初の掴みピッチＰ１を小さくすることはリンク数増加による荷重の増大、軸受け円周長さの減少による回転数の増大、及び、軸受けの負荷容量の減少等、悪循環を来たすので、本発明においては最初の掴みピッチＰ１を小さくすることを避けたい。
【００１８】
一方、延伸された製品のシート状物１（以下、製品フィルムと記す）は、図３に示すように未延伸シート状物１を延伸することで、掴み装置２の把持部２１に支持されていない端面がくびれ、弓形変形部１３が形成されることになる。このような弓形変形部１３のしわ（波紋）１４は厚さむらを生じさせ、製品フィルムとして利用できる有効ＴＤ長（製品フィルムの中央からフィルム端部における製品として利用可能なＴＤ方向の長さ）を減少させ、歩留りを低下させることになる。このため、掴み装置２の最初のピッチＰ１は製品のシート状物１の歩留り向上に大変重要な因子となるが、従来の技術に記述した通り、ハード及びプロセスの両面から見た好適設計が必要不可欠となる。
【００１９】
ところで、弓形変形部１３の変形量は掴み装置２の把持部２１の面積に依存することは容易に類推できるため、本発明者らは未延伸シート状物１を掴み装置２の把持部２１の数Ｎｃとその把持部２１の形状及び面積を因子とし、どの因子が有効ＴＤ長に影響を与えるか研究し、図４に示す結果を得た。
【００２０】
横軸は所定長さ当りの把持数×把持部１個当りの面積を、縦軸はその把持部形態下における有効ＴＤ長さを、各々、公知例（特公昭４４−７１５５号公報）記載の親子リンクを具備したリンク装置を基準値として無次元化し整理したものである。本結果より、マクロ的には把持部面積比の増加により、有効ＴＤ比は増加傾向となり、予想された通りの結果を得たが、有効ＴＤ長を左右する因子として、把持部２１の形状が影響を与え、その中でも、本発明に係る把持部２１の形状の第１の実施例として、楕円形状または近似楕円形状、特に長径を、ほぼＭＤ方向（シート状物１の進行方向にほぼ平行な方向）にした楕円形状または近似楕円形状が優れることを見出した。
【００２１】
即ち、図５（ａ）に示すように把持部２１が円形状２１１の場合、弓形形状１３のしわ１４は、円形状２１１の輪郭に依存し、把持部ピッチＰ２間に発生するため、面積の増加はＴＤ方向への把持長さの増大を意味し、面積増加における有効ＴＤ長の増加を相殺する結果となるものと考える。
【００２２】
また、単純に面積を確保するため図５（ｂ）のように把持部２１の形状をＴＤ方向に短辺の矩形２１２とした場合、ＭＤ方向に垂直な辺の影響で弓形形状１３の弧の高さが円形状と比較し小さくなる。従って、弓形部での応力緩和効果が減退する分ＴＤ方向の応力分布が発達する方向となり、３形状で最も有効ＴＤ長が悪化する結果になったものと推察される。
【００２３】
その点、図５（ｃ）に示すように、本発明に係る把持部２１の形状の第１の実施例である楕円形状２１３はＴＤ方向への把持長さを抑制でき、把持面積を増加できる矩形の利点と、弓形部での応力緩和効果が高い円形状の利点を併せ持つため、３形状で比較的有効ＴＤ長が優れたものと考える。
【００２４】
以上説明したように、本発明に係る把持部２１の形状の第１の実施例を、楕円形状２１３、好ましくは楕円形状２１３の長径を該シート状物１の進行方向にほぼ平行（楕円形状２１３の長径方向が、シート状物１の進行方向に対してある程度傾きを持ってもよい。）とし、更に好ましくは楕円形状２１３の短径／長径の比率を０．５〜１．０未満とすることで、軸受けローラ９の外径に依存することなく製品フィルムのしわ、即ち歩留りを改善でき、生産性を向上できる。更に、上記第１の実施例によれば、親子リンクを具備した従来技術に対し、部品点数を増加させることなく同程度の性能が確保できるため、省メンテナンス性、低コスト化がはかれるとともに、軽量化に伴う更なる高速化が実現できる。
【００２５】
次に、本発明に係る把持部２１の形状の第２の実施例について図６を用いて説明する。図６は、上記把持部の形状の第２の実施例を説明するための図である。本第２の実施例は、シート状物１と面接触する掴み装置２の把持部２１の形状を、シート状物１の進行方向にほぼ平行な方向を長辺とする矩形の基本形状に対して該矩形の４つの角部を曲線形状３００とした平行部分を有する近似楕円形状２１４にしたことにある。要するに矩形の頂角部分を曲線形状３００にして第１の実施例である楕円形状２１３に近似させた近似楕円形状２１４にしたことにある。その結果、本第２の実施例の特有な効果としては加工が簡単な点にある。性能面は曲線形状３００の曲率を増加させることで、第１の実施例である楕円形状の効果に近似させることが可能である。
【００２６】
次に、本発明に係る把持部２１の形状の第３の実施例について図７を用いて説明する。図７は、上記把持部の形状の第３の実施例を説明するための図である。本第３の実施例は、図６に示す曲線形状３００を少なくともシート状物中央側に位置する長辺の２つの角部に施した矩形形状を基本形状とする片側（シート状物中央側）の２つの角部を曲線とする形状（片側角部に曲線部を有する矩形形状）２１５にしたことにある。特に、図５から明らかなように、シート状物１の外側に位置する長辺の２つの角部の形状は、弓形部での応力緩和効果にあまり影響しないことが予測されるので、必ずしも曲線形状にする必要はなく、把持部の面積を増大させることが可能となる。その結果、本第３の実施例の効果は上記第２の実施例と同等になる。
【００２７】
尚、本発明に係る把持部２１の形状の第１〜第３の実施例２１３〜２１５の全般において、把持されていない区間の距離（実質は面積）が短いと、その間のシート状物１に過剰な応力が働き、シート状物１の強度物性によっては破断する恐れがある。従って、掴み装置２の最初のピッチをＰ１とし、該ピッチ（シート状物１の進行方向）に平行な把持部２１の最大長さ（長径）を、上記Ｐ１で除した値として、０．４〜１．０未満、好ましくは０．４〜０．８とすることが望ましい。
【００２８】
例えば、掴み装置２の最初のピッチＰ１が５０ｍｍ程度で、把持部２１の形状を楕円形状２１３、近似楕円形状２１４または片側角部に曲線部を有する矩形形状２１５とした場合、楕円形状２１３、近似楕円形状２１４または片側角部に曲線部を有する矩形形状２１５の最大長さ（例えば長径）は上記より２０ｍｍ程度から４０ｍｍ程度の範囲であることが好ましい。また、楕円形状２１３、近似楕円形状２１４または片側角部に曲線部を有する矩形形状２１５の短径（ＴＤ方向の最大幅）と長径（ＭＤの最大長さ）の関係より、長径が２０ｍｍ程度〜４０ｍｍ程度の範囲の場合、短径は８ｍｍ程度〜３２ｍｍ程度の範囲であることが好ましい。
【００２９】
【発明の効果】
本発明によれば、従来技術に比べて、軸受けローラの外径に依存することなく製品フィルムのしわ、即ち歩留りを改善でき、生産性を向上できる同時二軸延伸機を実現することができる効果を奏する。
【００３０】
また、本発明によれば、親子リンクを具備した従来技術に比べて、部品点数を増加させることなく同程度の性能が確保できるため、省メンテナンス性、低コスト化がはかれるとともに、軽量化に伴う更なる高速化が実現できる同時二軸延伸機を提供することができる効果を奏する。
【図面の簡単な説明】
【図１】本発明に係る同時二軸延伸機の一実施の形態を示す平面図である。
【図２】図１に示す等長リンクの断面図である。
【図３】掴みピッチと弓形変形部の一例を示す図である。
【図４】各種把持部の形状における有効ＴＤ比の比較図である。
【図５】各種把持部の形状と弓形変形部の関係を示す図で、（ａ）は把持部の形状が円形形状の場合、（ｂ）は把持部の形状が矩形形状の場合、（ｃ）は本発明に係る把持部の形状の第１の実施例である楕円形状の場合を示す図である。
【図６】本発明に係る把持部の形状の第２の実施例である近似楕円形状を示す図である。
【図７】本発明に係る把持部の形状の第３の実施例である片側角部に曲線部を有する矩形形状を示す図である。
【符号の説明】
１…シート状物、２…掴み装置、３…無端リンク装置、４…入口スプロケット、５…シート側ガイド、６…中間ガイド、７…反シート側ガイド、８…出口スプロケット、９…軸受けローラ、１０…リンク軸、１１…リンク軸、１２…反シート側リンクプレート、１５…シート側リンクプレート、２１…把持部、３１…等長リンク装置。[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous biaxial stretching machine for sheet-like articles, for example, a sheet-like article that continuously and simultaneously stretches a thermoplastic resin film in a machine direction and a transverse direction.
[0002]
[Prior art]
Conventionally, an apparatus for simultaneously and continuously stretching a continuous film in both the longitudinal (MD) and transverse (TD) axes has been known. Generally, such a known device is provided with a plurality of gripping devices for gripping an end portion of a sheet-like material on both side ends of the sheet-like material, and is an endless end configured by a plurality of isometric link devices formed in a folded shape. A link device is provided, and by driving the endless link device from a sprocket on the entrance side of the sheet-like material, it is guided by guide rails arranged divergently in the direction of movement, and the gripping pitch is gradually enlarged to extend the sheet-like material vertically and horizontally. The sheet is stretched in two directions at the same time, and after the sheet is stretched, the sheet is removed from the gripping device, and the endless link device is driven by the outlet sprocket to return to the inlet sprocket.
[0003]
The stretching method in which the equal-length links advance in the guide rail by changing the angle is performed by changing the friction coefficient μ of the rolling bearing, the frictional resistance of each sliding portion and the number of links n in the stretched section or the section restricted by the guide rail. Determines the load, and its life is determined by the stretching speed and the like. For example, reducing the outer diameter of the bearing and decreasing the initial gripping pitch increases the load due to an increase in the number of links, increases the number of revolutions due to a decrease in the circumference of the bearing, and reduces the load capacity of the bearing. Come.
[0004]
On the other hand, a stretched product sheet (hereinafter referred to as a product film) has a narrow end face not supported by the gripping device, and an arc-shaped wrinkle is formed. Such wrinkles are very uneconomical, such as causing uneven thickness in the product film and reducing the yield as a product. For this reason, the initial pitch of the gripping device is a very important factor in the finish of the product film, and it is considered that reducing the gripping pitch contributes to the improvement of the productivity of the product film.
[0005]
As described above, in the conventional known example, a reciprocal relationship is established with respect to the gripping pitch, and in order to secure economical efficiency on both the machine side and the product film side, a suitable design and a sufficient test from both the hardware and process sides are required. Accumulation of know-how including the period is indispensable.
[0006]
As a well-known example for solving the above-mentioned problem, Japanese Patent Publication No. 44-7155 discloses connecting equal length links separately from existing gripping devices (existing link devices are collectively referred to as parent links). It is disclosed that a gripping device (collectively referred to as a child link) is provided on a link plate. According to this known example, the gripping pitch can be reduced without depending on the outer diameter of the rolling bearing, and it is considered that this contributes to the improvement of the productivity of the product film. It is considered that there is a problem in increasing the weight and reducing the weight for further speeding up.
[0007]
[Patent Document 1]
Japanese Patent Publication No. 44-7155
[Problems to be solved by the invention]
An object of the present invention is to improve the productivity of a product film without depending on the outer diameter of a rolling bearing, and to reduce the maintenance, reduce the cost, and realize a sheet-like material capable of realizing a higher speed. It is to provide a simultaneous biaxial stretching machine.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a plurality of gripping devices for gripping an end of a sheet of a thermoplastic resin on both side ends of the sheet, and a plurality of folding units. An endless link device comprising an isometric link device is provided, and the endless link device is driven by a sprocket on the inlet side of the sheet-like material, thereby being guided by a guide rail arranged to be divergent in the traveling direction and the gripping device. The sheet-like material whose end is grasped is stretched simultaneously in two directions in the vertical and horizontal directions by gradually increasing the grip pitch of the endless link device. After the stretching, the end of the sheet-like material is removed from the grasping device, and the endless link device is removed. Is driven by an outlet-side sprocket to return to the inlet-side sprocket, wherein the sheet-like material is simultaneously biaxially stretched and is held in surface contact with the end of the sheet-like material of the gripping device. The shape of the grip portion is longer than a direction perpendicular to the traveling direction of the sheet-like material, and at least a corner located at the center side of the sheet-like material is formed as a curve. I do.
[0010]
Further, the present invention is characterized in that in the simultaneous biaxial stretching machine for the sheet-like material, the shape of the grip portion is formed in an elliptical shape or an approximate elliptical shape. Further, the present invention is characterized in that in the simultaneous biaxial stretching machine for the sheet-like material, the major axis of the elliptical shape or the approximate elliptical shape is substantially parallel to the traveling direction of the sheet-like material. Further, the present invention is characterized in that, in the simultaneous biaxial stretching machine for the sheet-like material, the ratio of the minor axis / major axis of the elliptical shape or the approximate elliptical shape is set to 0.5 to less than 1.0.
[0011]
Further, in the present invention, in the simultaneous biaxial stretching machine for a sheet-like material, the shape of the gripping portion may be a rectangle having a long side in a direction substantially parallel to a traveling direction of the sheet-like material. Characterized in that at least a corner located on the center side of the sheet-like material is formed by a curved line. Further, in the present invention, in the simultaneous biaxial stretching machine for a sheet-like material, the shape of the gripping portion may be a rectangle having a long side in a direction substantially parallel to a traveling direction of the sheet-like material. Characterized in that the four corners are formed by curves.
[0012]
Further, in the present invention, in the shape of the gripping portion in the simultaneous biaxial stretching machine for the sheet-like material, a maximum length in a direction substantially parallel to a traveling direction of the sheet-like material is determined by an initial pitch P1 of the gripping device. The divided value is set to 0.4 to less than 1.0, preferably 0.4 to 0.8.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a simultaneous biaxial stretching machine for a sheet-like material according to the present invention, for example, a sheet-like material for continuously and simultaneously stretching a thermoplastic resin film or the like in a longitudinal direction and a lateral direction will be described with reference to the drawings.
[0014]
FIG. 1 is a plan view showing an embodiment of a simultaneous biaxial stretching machine according to the present invention, and FIG. 2 is a cross-sectional view of the isometric link 31 shown in FIG. 1, and its configuration and operation are as follows.
[0015]
That is, the simultaneous biaxial stretching machine is provided with a plurality of gripping devices 2 for gripping the ends of the sheet-like material 1 such as a thermoplastic resin film on both sides of the sheet-like material 1 and is formed in a folded shape. An endless link device (a part of the link and one endless link in the figure is omitted) 3 composed of a plurality of isometric link devices 31 is provided. The endless link device 3 is connected to the entrance side sprocket 4 of the sheet-like material 1. When driven, the sheet is guided by the guide rails 5, 6, and 7 arranged divergently in the traveling direction to gradually increase the gripping pitch of the gripping device 2 from P1 to P2 to form a sheet-like shape in which the end is gripped. The object 1 is simultaneously stretched in two directions in the vertical and horizontal directions. After the stretching, the end of the sheet-like material 1 is detached from the gripping device 2 and the endless link device 3 is driven by an outlet sprocket 8 to drive the inlet sprocket 4. Back configured as described above.
[0016]
The guide rails 5, 6, and 7 have a pair of guide grooves, and a guide groove formed between the sheet-side guide 5 closer to the sheet-like material 1 and the intermediate guide 6 has a sheet. A link shaft 10 (FIG. 2) provided on a pair of sheet side link plates 15 to which a gripping device 2 for gripping the object 1 is connected is held via a rolling bearing roller 9, and the other non-sheet side guide 7 is provided. A link shaft 11 (FIG. 2) provided on a pair of anti-seat side link plates 12 having no gripping device is held in a guide groove formed between the shaft and the intermediate guide 6 via a rolling bearing roller 9. The link shaft 10 and the link shaft 11 are connected by, for example, the seat side link plate 15. The gripping device 2 is integrally provided on the seat-side link plate 15. For this reason, the gripping device 2 is configured to be connected to every other folded portion of the link, and the initial pitch P1 for gripping the sheet-like material 1 is determined by the outer diameter of the rolling bearing roller 9 held in the guide groove. .
[0017]
The stretching method in which the isometric links 31 advance in the guide rail while changing the angle is performed by changing the friction coefficient μ of the rolling bearing, the frictional resistance of each sliding portion and the number of links in the stretched section or the section restricted by the guide rail. The load is determined by n, and its life is determined by the stretching speed and the like. For example, reducing the outer diameter of the bearing roller 9 and decreasing the initial gripping pitch P1 increases the load due to an increase in the number of links, increases the number of revolutions due to a decrease in the bearing circumferential length, and reduces the load capacity of the bearing. Since a vicious cycle such as a decrease occurs, it is desirable in the present invention to reduce the initial grip pitch P1.
[0018]
On the other hand, the stretched product sheet 1 (hereinafter, referred to as a product film) is supported by the grip portion 21 of the gripping device 2 by stretching the unstretched sheet material 1 as shown in FIG. The end face which is not constricted will form the bow-shaped deformed portion 13. The wrinkles (ripples) 14 of the bow-shaped deformed portion 13 cause uneven thickness, and the effective TD length that can be used as a product film (the length in the TD direction that can be used as a product from the center of the product film to the edge of the film). And yield will be reduced. For this reason, the initial pitch P1 of the gripping device 2 is a very important factor for improving the yield of the sheet material 1 of the product. However, as described in the related art, a suitable design from both the hardware and the process is necessary. Become indispensable.
[0019]
By the way, since it can be easily inferred that the deformation amount of the bow-shaped deforming portion 13 depends on the area of the grip portion 21 of the gripping device 2, the present inventors hold the unstretched sheet-like material 1 in the grip portion 21 of the gripping device 2. Using the number Nc and the shape and area of the grip portion 21 as factors, the inventors studied which factors affect the effective TD length, and obtained the results shown in FIG.
[0020]
The horizontal axis represents the number of grips per predetermined length × the area per gripper, and the vertical axis represents the effective TD length under the gripper configuration, each of which is described in a known example (Japanese Patent Publication No. 44-7155). This is a non-dimensional arrangement of a link device having a parent-child link as a reference value. From this result, macroscopically, the effective TD ratio tends to increase due to an increase in the gripping area ratio, and the expected result was obtained. However, as a factor influencing the effective TD length, the shape of the gripping portion 21 was determined. In particular, as a first example of the shape of the grip portion 21 according to the present invention, the elliptical shape or the approximate elliptical shape, particularly the major axis is set in the MD direction (almost parallel to the traveling direction of the sheet-like material 1). Direction) or an approximate elliptical shape was found to be excellent.
[0021]
That is, as shown in FIG. 5A, when the grip portion 21 has the circular shape 211, the wrinkles 14 of the bow 13 depend on the contour of the circular shape 211 and occur between the grip portion pitches P2. The increase means an increase in the gripping length in the TD direction, and is considered to result in offsetting the increase in the effective TD length in the area increase.
[0022]
In order to simply secure the area, as shown in FIG. 5B, when the shape of the gripping portion 21 is a rectangle 212 having a short side in the TD direction, the arc of the bow 13 is affected by the side perpendicular to the MD direction. The height is smaller than the circular shape. Therefore, it is presumed that the stress distribution in the TD direction develops in the direction in which the stress relaxation effect in the bow portion decreases, and the effective TD length is most deteriorated in the three shapes.
[0023]
On the other hand, as shown in FIG. 5C, the elliptical shape 213 of the grip portion 21 according to the first embodiment of the present invention can reduce the grip length in the TD direction and increase the grip area. Since it has the advantage of a rectangle and the advantage of a circular shape having a high stress relaxation effect at the bow, it is considered that the three shapes have a relatively good effective TD length.
[0024]
As described above, the first embodiment of the shape of the grip portion 21 according to the present invention is applied to the case where the major axis of the elliptical shape 213, preferably the elliptical shape 213 is substantially parallel to the traveling direction of the sheet-like material 1 (the elliptical shape 213). The major axis direction may have a certain degree of inclination with respect to the traveling direction of the sheet-like material 1). More preferably, the ratio of minor axis / major axis of the elliptical shape 213 is set to 0.5 to less than 1.0. Thus, wrinkles of the product film, that is, yield can be improved without depending on the outer diameter of the bearing roller 9, and productivity can be improved. Furthermore, according to the first embodiment, the same performance can be secured without increasing the number of parts as compared with the conventional technology having the parent-child link, so that maintenance is reduced, cost is reduced, and the weight is reduced. Further speeding up can be realized with the development.
[0025]
Next, a second embodiment of the shape of the grip portion 21 according to the present invention will be described with reference to FIG. FIG. 6 is a view for explaining a second embodiment of the shape of the grip portion. In the second embodiment, the shape of the gripping portion 21 of the gripping device 2 that makes surface contact with the sheet-like material 1 is set to a rectangular basic shape having a long side in a direction substantially parallel to the traveling direction of the sheet-like material 1. That is, an approximate elliptical shape 214 having parallel portions in which the four corners of the rectangle are formed into a curved shape 300. In short, the apex portion of the rectangle is formed into a curved shape 300 to form an approximate elliptical shape 214 obtained by approximating the elliptical shape 213 of the first embodiment. As a result, a special effect of the second embodiment is that processing is simple. By increasing the curvature of the curved shape 300 on the performance surface, it is possible to approximate the effect of the elliptical shape of the first embodiment.
[0026]
Next, a third embodiment of the shape of the grip portion 21 according to the present invention will be described with reference to FIG. FIG. 7 is a view for explaining a third embodiment of the shape of the gripping portion. In the third embodiment, one side (the center side of the sheet-like object) having a basic shape of a rectangular shape obtained by applying the curved shape 300 shown in FIG. 6 to at least two corners of the long side located at the center side of the sheet-like object. (A rectangular shape having a curved portion at one side corner) 215. In particular, as is apparent from FIG. 5, the shape of the two corners of the long side located outside the sheet-like material 1 is expected to have little effect on the stress relaxation effect in the arcuate portion. It is not necessary to make the shape, and the area of the gripping portion can be increased. As a result, the effect of the third embodiment is equivalent to that of the second embodiment.
[0027]
Incidentally, in the first to third embodiments 213 to 215 of the shape of the grip portion 21 according to the present invention, if the distance (substantially the area) of the section that is not gripped is short, the sheet-like material 1 therebetween has Excessive stress acts, and there is a possibility of breakage depending on the strength physical properties of the sheet-like material 1. Therefore, the initial pitch of the gripping device 2 is P1, and the maximum length (major axis) of the gripping portion 21 parallel to the pitch (the traveling direction of the sheet-like material 1) is 0.4 It is desirably set to less than 1.0, preferably 0.4 to 0.8.
[0028]
For example, when the initial pitch P1 of the gripping device 2 is about 50 mm and the shape of the gripping portion 21 is an elliptical shape 213, an approximate elliptical shape 214, or a rectangular shape 215 having a curved portion at one side corner, the elliptical shape 213 is approximated. The maximum length (for example, the major axis) of the elliptical shape 214 or the rectangular shape 215 having a curved portion at one side corner is preferably in the range of about 20 mm to about 40 mm. In addition, from the relationship between the minor axis (maximum width in the TD direction) and the major axis (maximum MD length) of the elliptical shape 213, the approximate elliptical shape 214, or the rectangular shape 215 having a curved portion at one corner, the major axis is about 20 mm or more. In the case of a range of about 40 mm, the minor axis is preferably in a range of about 8 mm to about 32 mm.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the effect which can implement the simultaneous biaxial stretching machine which can improve the wrinkle of a product film, ie, a yield, and can improve productivity, without depending on the outer diameter of a bearing roller compared with a prior art. To play.
[0030]
Further, according to the present invention, the same performance can be ensured without increasing the number of parts as compared with the conventional technology having the parent-child link, so that the maintenance is easy, the cost is reduced, and the weight is reduced. There is an effect that it is possible to provide a simultaneous biaxial stretching machine capable of realizing higher speed.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a simultaneous biaxial stretching machine according to the present invention.
FIG. 2 is a sectional view of the isometric link shown in FIG. 1;
FIG. 3 is a diagram illustrating an example of a grip pitch and an arcuate deformable portion.
FIG. 4 is a comparison diagram of effective TD ratios in various gripping part shapes.
5A and 5B are diagrams showing the relationship between the shape of various gripping portions and the bow-shaped deformed portion, wherein FIG. 5A shows a case where the shape of the gripping portion is circular, FIG. 5B shows a case where the shape of the gripping portion is rectangular, and FIG. FIG. 4) is a diagram showing a case of an elliptical shape which is the first embodiment of the shape of the gripping portion according to the present invention.
FIG. 6 is a view showing an approximate elliptical shape which is a second embodiment of the shape of the gripper according to the present invention.
FIG. 7 is a view showing a rectangular shape having a curved portion at one side corner, which is a third embodiment of the shape of the grip portion according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sheet-like thing, 2 ... Gripping device, 3 ... Endless link device, 4 ... Inlet sprocket, 5 ... Sheet side guide, 6 ... Intermediate guide, 7 ... Non-sheet side guide, 8 ... Outlet sprocket, 9 ... Bearing roller, DESCRIPTION OF SYMBOLS 10 ... Link shaft, 11 ... Link shaft, 12 ... Anti-seat side link plate, 15 ... Seat side link plate, 21 ... Grip part, 31 ... Equal length link device.

Claims (6)

熱可塑性樹脂のシート状物の端部を把持する複数の掴み装置を前記シート状物の両側端に具備し、折尺状に形成された複数個の等長リンク装置より構成された無端リンク装置を設け、該無端リンク装置をシート状物の入口側スプロケットより駆動することにより進行方向に末広がり状に配置されたガイドレールに案内されて前記掴み装置の掴みピッチを徐々に拡大させて前記端部が把持されたシート状物を縦横二方向に同時に延伸し、さらに該延伸後前記シート状物の端部を前記掴み装置から外して前記無端リンク装置を出口側スプロケットにより駆動して前記入口側スプロケットに戻るように構成したシート状物の同時二軸延伸機であって、
前記掴み装置の前記シート状物の端部と面接触して把持する把持部の形状を、前記シート状物の進行方向に対して該進行方向に直角な方向に比べて長くして少なくとも前記シート状物中央側に位置する角部を曲線で形成したことを特徴とするシート状物の同時二軸延伸機。An endless link device comprising a plurality of gripping devices for gripping the ends of a sheet of thermoplastic resin on both side ends of the sheet, and comprising a plurality of isometric link devices formed in a folded shape. The endless link device is guided by guide rails arranged in a divergent shape in the traveling direction by driving the endless link device from an inlet-side sprocket of the sheet-like material, and the gripping pitch of the gripping device is gradually enlarged to increase the end portion. The sheet-like material gripped is simultaneously stretched in two directions in the vertical and horizontal directions, and after the stretching, the end of the sheet-like material is removed from the gripping device, and the endless link device is driven by an outlet-side sprocket to drive the inlet-side sprocket. A simultaneous biaxial stretching machine for sheet-like material configured to return to,
The shape of the gripping portion of the gripping device that grips the end of the sheet-shaped object in surface contact with the end of the sheet-shaped object is longer than a direction perpendicular to the traveling direction of the sheet-shaped object, so that at least the sheet A simultaneous biaxial stretching machine for a sheet-like object, wherein a corner located at the center side of the object is formed by a curve. 前記把持部の形状を、楕円形状または近似楕円形状に形成したことを特徴とする請求項１記載のシート状物の同時二軸延伸機。The simultaneous biaxial stretching machine for a sheet-like material according to claim 1, wherein the shape of the grip portion is formed in an elliptical shape or an approximate elliptical shape. 前記楕円形状または近似楕円形状の長径を前記シート状物の進行方向に対してほぼ平行にしたことを特徴とする請求項２記載のシート状物の同時二軸延伸機。3. The simultaneous biaxial stretching machine for a sheet-like material according to claim 2, wherein the major axis of the elliptical shape or the approximate elliptical shape is substantially parallel to the traveling direction of the sheet-like material. 前記楕円形状または近似楕円形状の短径／長径の比率を０．５〜１．０未満としたことを特徴とする請求項２または３記載のシート状物の同時二軸延伸機。4. The simultaneous biaxial stretching machine for a sheet-like material according to claim 2, wherein the ratio of the minor axis / major axis of the elliptical shape or the approximate elliptical shape is set to 0.5 to less than 1.0. 前記把持部の形状を、前記シート状物の進行方向にほぼ平行な方向を長辺とする矩形を基本形状にして該矩形の少なくとも前記シート状物中央側に位置する角部を曲線で形成したことを特徴とする請求項１記載のシート状物の同時二軸延伸機。The shape of the gripping portion was formed as a basic shape with a rectangle having a long side substantially parallel to the traveling direction of the sheet-like material, and at least a corner portion of the rectangle located at the center side of the sheet-like material was formed as a curve. The simultaneous biaxial stretching machine for a sheet-like material according to claim 1, wherein: 前記把持部の形状において、シート状物の進行方向にほぼ平行な方向における最大長さを、前記掴み装置の最初のピッチＰ１で除した値として０．４〜１．０未満としたことを特徴とする請求項１乃至５の何れか一つに記載のシート状物の同時二軸延伸機。In the shape of the gripping portion, a maximum length in a direction substantially parallel to a traveling direction of the sheet-like material is set to a value obtained by dividing the initial length P1 of the gripping device by 0.4 to less than 1.0. The simultaneous biaxial stretching machine for a sheet-like material according to any one of claims 1 to 5.
JP2002364621A 2002-12-17 2002-12-17 Simultaneous biaxial stretching machine for sheet Expired - Fee Related JP3732175B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002364621A JP3732175B2 (en) 2002-12-17 2002-12-17 Simultaneous biaxial stretching machine for sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002364621A JP3732175B2 (en) 2002-12-17 2002-12-17 Simultaneous biaxial stretching machine for sheet

Publications (2)

Publication Number Publication Date
JP2004195712A true JP2004195712A (en) 2004-07-15
JP3732175B2 JP3732175B2 (en) 2006-01-05

Family

ID=32762385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002364621A Expired - Fee Related JP3732175B2 (en) 2002-12-17 2002-12-17 Simultaneous biaxial stretching machine for sheet

Country Status (1)

Country Link
JP (1) JP3732175B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009179051A (en) * 2008-02-01 2009-08-13 Hitachi Plant Technologies Ltd Stretching machine of sheet-like material
KR101033703B1 (en) * 2006-07-19 2011-05-09 도시바 기카이 가부시키가이샤 Sheet or film oblique stretching method and sheet or film clipping stretcher
US7996965B2 (en) 2006-07-19 2011-08-16 Toshiba Kikai Kabushiki Kaisha Sheet or film clipping stretcher
US8252218B2 (en) 2008-04-04 2012-08-28 Toshiba Kikai Kabushiki Kaisha Porous film manufacturing method and successive biaxial stretching apparatus for manufacturing porous film
US8286313B2 (en) 2007-01-23 2012-10-16 Toshiba Kikai Kabushiki Kaisha Sheet or film clipping stretcher
JP2019133063A (en) * 2018-02-01 2019-08-08 日東電工株式会社 Film stretching apparatus and method for manufacturing retardation film

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033703B1 (en) * 2006-07-19 2011-05-09 도시바 기카이 가부시키가이샤 Sheet or film oblique stretching method and sheet or film clipping stretcher
US7996965B2 (en) 2006-07-19 2011-08-16 Toshiba Kikai Kabushiki Kaisha Sheet or film clipping stretcher
US8028383B2 (en) 2006-07-19 2011-10-04 Toshiba Kikai Kabushiki Kaisha Sheet or film oblique stretching method and sheet or film clipping stretcher
US8535588B2 (en) 2006-07-19 2013-09-17 Toshiba Kikai Kabushiki Kaisha Sheet or film oblique stretching method and sheet or film clipping stretcher
US8286313B2 (en) 2007-01-23 2012-10-16 Toshiba Kikai Kabushiki Kaisha Sheet or film clipping stretcher
JP2009179051A (en) * 2008-02-01 2009-08-13 Hitachi Plant Technologies Ltd Stretching machine of sheet-like material
US8252218B2 (en) 2008-04-04 2012-08-28 Toshiba Kikai Kabushiki Kaisha Porous film manufacturing method and successive biaxial stretching apparatus for manufacturing porous film
JP2019133063A (en) * 2018-02-01 2019-08-08 日東電工株式会社 Film stretching apparatus and method for manufacturing retardation film
CN110103452A (en) * 2018-02-01 2019-08-09 日东电工株式会社 The manufacturing method of thin film stretching device and phase-contrast film
JP7020942B2 (en) 2018-02-01 2022-02-16 日東電工株式会社 Film stretching device and method for manufacturing retardation film

Also Published As

Publication number Publication date
JP3732175B2 (en) 2006-01-05

Similar Documents

Publication Publication Date Title
EP2572857B1 (en) Methods for stretching polymer films
US6936209B2 (en) Methods and devices for processing polymer films
EP1390193B1 (en) Apparatus for making transversely drawn films with substantially uniaxial orientation
US20060115548A1 (en) Simultaneous longitudinal and transverse film drawing device
JP4633834B2 (en) Film stretcher
JP6512647B2 (en) Food dough rounding molding apparatus and rounding molding method
JP6772130B2 (en) Clip type stretching device
KR20120064618A (en) Stretching machine of sheet shape
KR100498109B1 (en) Apparatus for forming thin-film of sheet shape substance
JP3855907B2 (en) Sheet material drawing machine
JP2004195712A (en) Simultaneous biaxial stretching machine for sheetlike article
JPH0428218B2 (en)
JP5448413B2 (en) Film overfeed device and film stretching machine
JP2511989B2 (en) Simultaneous biaxial stretching method for sheet material
JP2818243B2 (en) Stretching equipment
FI3854569T3 (en) Stretching device for stretching a film of synthetic material
JPH04128028A (en) Simultaneous biaxial orientation machine of sheetlike object
JPH02131920A (en) Operating method of simultaneously biaxially stretching device
JP3779281B2 (en) Sheet-like material drawing machine and method thereof
JP7300404B2 (en) Clip link mechanism of simultaneous biaxial stretching equipment
CN109592111B (en) Automatic chip stacking device for sanitary articles
JP7349873B2 (en) Simultaneous biaxial stretching device
JPH06336330A (en) Separating conveyer
JP2749225B2 (en) Simultaneous biaxial stretching machine for sheet materials
JPH0523583B2 (en)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040929

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050922

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20051004

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20051011

R150 Certificate of patent or registration of utility model

Ref document number: 3732175

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081021

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091021

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091021

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101021

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101021

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111021

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111021

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121021

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131021

Year of fee payment: 8

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees