Container closure having pull-opening tab

Details Container closure having pull-opening tab Container closure having pull-opening tab

B - Operations, Transporting

65

D

B65D 17/34 (2006.01) B65D 17/32 (2006.01) B65D 17/40 (2006.01)

Patent

CA 2266293

There is provided a container closure which is easy to manufacture and also easy to open. The container closure is provided with a peripheral section adapted to be attached to a peripheral edge portion of the top opening of a container body, and a panel section which is surrounded by the peripheral section. The panel section has a plastic material layer on the face of a gas blocking substrate, and a score line providing a weakened region in the plastic material layer on the periphery of the panel section. The panel section is provided with a pulling tab for allowing a container to be opened along the score portion by raising the pulling tab. The pulling tab is integrally molded with the plastic material layer of the panel section through a thin hinge so that the pulling tab can be pulled up with respect to the panel section. A projection made of plastic material and extending laterally with respect to the pulling tab, is molded integrally with the plastic material layer of the panel section adjacent to the front end of the pulling tab. An abutting end portion is formed at the front end of the pulling tab for contacting with the projection when the pulling tab is pulled up by a predetermined angle with respect to the panel section and for causing the panel section to be broken along the score portion by pushing the projection when the pulling tab is further pulled up.

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