Bottle closure

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 41/04 (2006.01) B65D 41/34 (2006.01) B65D 41/62 (2006.01)

Patent

CA 2572983

Closure for a bottle comprising an inner cap of plastics material having an end wall (9) and a tubular skirt (10) which is provided with an internal thread (12) which engages a corresponding thread (5) provided on the neck of the bottle; an outer cap (14) of sheet metal which covers the said inner cap and which is fixed to the neck of the bottle by fixing means (22), wherein at least one circular weakening line (19) is provided in the said sheet metal outer cap (14); the said outer cap (14) has a tubular shape and is provided with an annular enlargement (24) forming an inner annular channel (25) delimited by corresponding axial end stops (26, 27); said channel (25) faces the tubular skirt (10) of the inner cap which is provided with an annular thickening (28) extending radially and axially,wherein the said thickening (28) is delimited by corresponding axial end stops (29, 30) and is force- fitted into the said channel (25).

La présente invention concerne un système de fermeture pour une bouteille, qui comprend un capuchon interne en plastique présentant une paroi d'extrémité (9) et une jupe tubulaire (10) qui présente un filetage interne (12) venant en prise avec un filetage correspondant (5) situé sur le col de la bouteille, ainsi qu'un capuchon externe (14) en tôle qui recouvre le capuchon interne et est fixé sur le col de la bouteille au moyen de systèmes de fixation (22). Le capuchon externe en tôle (14) présente au moins une ligne de rupture circulaire (19). Le capuchon externe (14) est de forme tubulaire et présente un élargissement annulaire (24) qui forme un canal annulaire interne (25) délimité par des butées d'extrémité axiales correspondantes (26, 27). Ce canal (25) fait face à la jupe tubulaire (10) du capuchon interne qui présente un épaississement annulaire (28) s'étendant en direction radiale et axiale. Cet épaississement (28) est délimité par des butées d'extrémité axiales correspondantes (29, 30) et est ajusté de force dans ledit canal (25).

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