Improved plastic bottle closure

Details Improved plastic bottle closure Improved plastic bottle closure

B - Operations, Transporting

65

D

B65D 41/48 (2006.01)

Patent

CA 2286818

This invention relates to an improved design for the tear handle of a tamper evident closure. Specifically, the invention relates to a design for a closure tear handle (28) which prevents damage to the closure tear skirt (24) under large application forces when the closure is applied to the bottle; this invention also provides a tear skirt which is easier for consumers to remove. A weak region (46) is placed at the base (38) of the intersection of the tear handle (28) and the wall of the tear skirt. This weak region (46) of the closure is designed such that upon contact with the neck finish of a bottle, which puts the tear skirt into tension, it attracts the tensile forces and relieves stress from the adjacent weak point (42) of the closure tear skirt to prevent damage to this area that would be offensive to consumers and result in wasted product.

La présente invention concerne un modèle amélioré de languette déchirable pour fermeture inviolable. En particulier, l'invention concerne un modèle de languette de fermeture déchirable (28) qui empêche que la jupe déchirable (24) de la fermeture soit endommagée sous l'effet des forces d'application élevées exercées lorsque la fermeture est appliquée sur la bouteille, et elle concerne également une jupe déchirable plus facile à enlever pour les consommateurs. Une zone affaiblie (46) est formée à la base (38) de la jonction entre la languette déchirable (28) et la paroi de la jupe déchirable. Cette zone affaiblie (46) de la fermeture est conçue de manière que lorsqu'elle entre en contact avec la bague du col de la bouteille, ce qui met la jupe déchirable sous tension, elle attire les forces de traction et libère des contraintes le point affaibli adjacent (42) de la jupe déchirable de la fermeture, évitant de la sorte tout dommage dans cette zone qui pourrait rebuter le consommateur ou altérer le produit.

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