DOUBLE STRUCTURE CONTAINER
To provide a double structure container manufactured by a stacking method, in which deformation of a fitting ring-shaped protrusion formed on a neck part of an inner bag container is effectively prevented.SOLUTION: In a double structure container composed of an outer cylinder container 3 and an inne...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a double structure container manufactured by a stacking method, in which deformation of a fitting ring-shaped protrusion formed on a neck part of an inner bag container is effectively prevented.SOLUTION: In a double structure container composed of an outer cylinder container 3 and an inner bag container 5 stored inside the outer cylinder container 3, the outer cylinder container 3 has an outer cylinder neck part 11 and a body part 15 connected to the outer cylinder neck part 11 and formed by extending, the inner bag container 5 has an inner bag neck part 21 and a bag-like part 23 connected to the inner bag neck part 21 and formed by extending, on an outer surface of the inner bag neck part 21, a ring-like projection 43 for fitting and fixing with the inner surface of the outer cylinder neck part 11 is provided in a lower part, on an inner surface of the outer cylinder neck part 11 of the outer cylinder container 3, an air passage forming groove 37 for communicating a gap between the inner surface of the body part 15 of the outer cylinder container 3 and the outer surface of the bag-like part 23 of the inner bag container 5 with an outside extends in the axial direction.SELECTED DRAWING: Figure 2
【課題】スタック法により製造される二重構造容器であって、内袋容器の首部に形成されている嵌合用リング状突起の変形が有効に防止されている二重構造容器を提供する。【解決手段】外筒容器3と外筒容器3の内部に収容された内袋容器5とから成る二重構造容器において、外筒容器3は、外筒首部11と、外筒首部11に連なり且つ延伸成形された胴部15とを有しており、内袋容器5は、内袋首部21と、内袋首部21に連なり且つ延伸成形された袋状部23とを有しており、内袋首部21の外面には、下方部分に、外筒首部11の内面との嵌合固定用リング状突起43が設けられており、外筒容器3の外筒首部11の内面には、外筒容器3の胴部15の内面と内袋容器5の袋状部23の外面との間の空隙を外部と連通するための空気路形成用溝37が軸方向に延びていることを特徴とする。【選択図】 図2 |
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