FILM ORIENTATION APPARATUS

PROBLEM TO BE SOLVED: To provide a film orientation apparatus that can orient a film, with high accuracy over a long period of time term by equalizing a load received by each rolling element.SOLUTION: A film orientation apparatus includes a plurality of gripping mechanisms 11 capable of moving while...

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Bibliographische Detailangaben
Hauptverfasser: SAITO MITSUHIKO, IKEDA YOSHIHISA, KATO HIROAKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a film orientation apparatus that can orient a film, with high accuracy over a long period of time term by equalizing a load received by each rolling element.SOLUTION: A film orientation apparatus includes a plurality of gripping mechanisms 11 capable of moving while gripping an edge part of a film, a guide mechanism for guiding the gripping mechanism along rail structures 1 and 2, and a link mechanism that links the guide mechanisms with each other. The guide mechanism comprises two guide pins 18 and 19 having axis lines 18t and 19t that become a center of rotation, and an upper rolling element 20 and a lower rolling element 21 provided rotatably at one end of the guide pin. Then upper rolling element and the lower rolling element are arranged with a height difference in the vertical direction along the axis line. An upper axis of rotation R1 of the upper rolling element and a lower axis of rotation R2 of the lower rolling element R2 are set in a positional relationship parallel with the axis line at a position avoiding the axis line. The axis line is set at a position intersecting a virtual line connecting one point on the upper axis of rotation and one point of the lower axis of rotation.SELECTED DRAWING: Figure 4 【課題】各々の転動体で受ける負荷を均等化させることで、長期に亘り、フィルムを精度よく延伸させることを可能にしたフィルム延伸装置を提供する。【解決手段】フィルムの縁部を把持しつつ移動可能な複数の把持機構11と、把持機構をレール構造体1,2に沿って案内するガイド機構と、ガイド機構を相互に連結するリンク機構と、を有する。ガイド機構は、回転中心となる軸線18t,19tを有する2つのガイドピン18,19と、ガイドピンの一端に回転可能に設けられた上部転動体20及び下部転動体21と、を備える。上部転動体及び下部転動体は、軸線に沿って上下方向に高低差を持って配置されている。上部転動体の上部回転軸R1及び下部転動体の下部回転軸R2は、軸線を回避した位置で、軸線と平行な位置関係に設定されている。上部回転軸の上の1点と、下部回転軸の上の1点とを結んだ仮想線を交差する位置に、軸線が設定されている。【選択図】図4