Push-on closure

Details Push-on closure Push-on closure

B - Operations, Transporting

65

D

B65D 41/17 (2006.01) B65D 41/47 (2006.01)

Patent

CA 2295713

A push-on closure (10) that can be pushed on to a container (12) and then screwed off. The container (12) has a neck (11) that is provided with a multi- start thread comprising alternating ridges (25) and grooves (26). The closure (10) includes a substantially circular top (13) and a depending skirt (14) with the skirt having a number of lugs (21) that are spaced apart circumferentially by distances corresponding to the spacing of the grooves (26) of the thread. When the closure (10) is attached to the neck (11) of the container (12), each of the lugs (21) engages with one of the recesses (27) formed in the neck (11). A ramp member (29) is also located adjacent each recess (27) so that upon relative rotation of the closure (10) at least some of the lugs (21) will bear against at least some of the ramp members (29) and be directed by the ramp members (29) into the grooves (26) in the thread to allow the closure (10) to be unscrewed from the neck (11) of the container (12).

Système de fermeture par pression (10), que l'on peut pousser sur un récipient (12), puis dévisser. Le récipient (12) possède un col (11) qui présente un filetage à plusieurs points de départ, constitué alternativement de crêtes (25) et de rainures (26). Le système de fermeture (10) comprend un sommet (13) sensiblement circulaire, d'où part une jupe (14) qui comporte un certain nombre de tenons (21) disposés à la circonférence et séparés d'une distance correspondant à l'écartement des rainures (26) du filetage. Quand le système de fermeture (10) est fixé sur le col (11) du récipient (12), chaque tenon (21) s'engage dans un des évidements (27) formés dans le col (11). Un élément incliné (29) est disposé adjacent à chaque évidement (27), de façon qu'après rotation relative du système de fermeture (10), au moins certains tenons (21) appuient sur au moins certains éléments inclinés (29) et soient dirigés par ces derniers dans les rainures (26) du filetage, de façon que l'on puisse dévisser le système de fermeture (10) afin de l'enlever du col du récipient (12).

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