Synthetic resin bottle

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 1/02 (2006.01) B65D 1/42 (2006.01)

Patent

CA 2713841

The technical problem to be solved by this invention is to create a shape of vacuum absorbing panels that can control swelling deformation involved in hot filling of synthetic resin bottles, without impairing the vacuum absorbing function of the bottles. A principle means of giving solution to this problem is a synthetic resin bottle of this invention comprising multiple vacuum absorbing panels in a dented shape disposed around a body in parallel in a circumferential direction, and also a vertical groove disposed in a laterally central area of each vacuum absorbing panel so that the vertical groove performs a function as a starting point for the deformation into a further dented state at the time of depressurization, wherein the vertical groove has a changing depth that gradually grows larger toward an upper end and a lower end, starting from a vertically central area of each vacuum absorbing panel.

L'objectif de l'invention est de créer une forme de panneau d'absorption d'évacuation dans un corps de bouteille de résine synthétique permettant de supprimer la déformation par expansion accompagnant une charge chaude, sans détériorer la fonction d'absorption d'évacuation. Dans le corps de bouteille de résine synthétique, les panneaux d'absorption d'évacuation sont réduits et formés dans le tronc du corps de bouteille parallèlement à la direction circonférentielle. Dans la partie centrale transversale du panneau d'absorption d'évacuation, des rainures verticales sont formées pour assurer une fonction, comme point de départ de la déformation par réduction au moment de l'évacuation. Les rainures verticales sont conçues de manière à être plus profondes vers le haut et vers le bas depuis la partie centrale verticale du panneau d'absorption d'évacuation.

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