An improved end closure for food and beverage containers is provided. The end closure contains a raised bead portion for guiding and directing the opening or lifting motion of a tab portion attached to the end closure. More efficient opening features are enabled by the guided action of the tab and r
An improved end closure for food and beverage containers is provided. The end closure contains a raised bead portion for guiding and directing the opening or lifting motion of a tab portion attached to the end closure. More efficient opening features are enabled by the guided action of the tab and raised bead features.
대표청구항▼
1. A metallic end closure adapted for interconnection to a neck of a beverage container, comprising: a peripheral curl;a chuck wall extending inwardly from said peripheral curl;a countersink interconnected to a lower portion of said chuck wall;an inner panel wall interconnected to said countersink;a
1. A metallic end closure adapted for interconnection to a neck of a beverage container, comprising: a peripheral curl;a chuck wall extending inwardly from said peripheral curl;a countersink interconnected to a lower portion of said chuck wall;an inner panel wall interconnected to said countersink;a central panel interconnected to said inner panel wall, said central panel comprising a longitudinal axis and a lateral axis, said axes being substantially perpendicular;a tab having a nose end and a tail end, said tab secured to an upper surface of said central panel by a rivet;said longitudinal axis and said lateral axis extending along the end closure and intersecting at said rivet;said central panel comprising a frangible score line which defines a tear panel;said tear panel comprising a raised bead feature radially offset from said longitudinal axis and extending above a public side of said tear panel, said raised bead feature provided below a portion of said nose end of said tab at least when the tab is provided in a first position;a recess formed in the nose end of said tab, said recess provided in force-transmitting contact with said raised bead feature; andwherein during an opening operation of said tear panel said tail end of said tab is raised and a portion of said nose end of said tab contacts said raised bead feature, wherein said raised bead feature causes a rotation of said tab toward a lateral portion of the tear panel to initiate propagation of said frangible score line in a predetermined location. 2. The metallic end closure of claim 1, wherein the raised bead feature is provided on a first side of the longitudinal axis. 3. The metallic end closure of claim 2, wherein a contact between the raised bead feature and the tab causes a rotation of the tab toward a second side of the longitudinal axis. 4. The metallic end closure of claim 3, wherein the propagation of the score defining the tear panel is initiated on the second side of the longitudinal axis. 5. The metallic end closure of claim 1, wherein the end closure comprises a vertical axis provided perpendicular to said longitudinal and said lateral axes, and wherein a contact between the raised bead and the tab prevents rotation of said tab about said vertical axis. 6. A metallic end closure adapted for interconnection to a neck of a beverage container, comprising: a peripheral curl surrounding a central panel;a tab positioned along a longitudinal axis of the central panel, said longitudinal axis bisecting said central panel into a first lateral portion and a second lateral portion;said tab having a nose end and a tail end, said tab secured to said central panel by a rivet;said central panel comprising a frangible score line which at least partially defines a tear panel;said tear panel comprising a raised bead feature disposed beneath said nose end of said tab at least when the tab is provided in a first position, said raised bead feature radially offset with respect to said longitudinal axis and extending above a public side of the tear panel;the tab comprising at least one of a notch and a recess formed in the nose portion of the tab and provided in force-transmitting contact with said raised bead feature;wherein in response to a user-applied force to lift said tail end of said tab, said tab rotates in a first rotational direction such that said nose end of said tab provides a force to said raised bead feature and said tear panel; andwherein said force provides a second rotation of said tab, said second rotation comprising a rotation of the tab toward the second lateral portion of said tab. 7. The metallic end closure of claim 6, wherein the first rotational direction comprises an axis of rotation passing laterally through a mid-point of the rivet. 8. The metallic end closure of claim 6, wherein the second rotational direction comprises an axis of rotation passing longitudinally through the tab. 9. The metallic end closure of claim 6, wherein said raised bead feature is provided in said first lateral portion of said tab. 10. The metallic end closure of claim 6, wherein said longitudinal axis bisects said rivet and said tab. 11. The metallic end closure of claim 6, wherein a contact between the raised bead and the tab prevents rotation of said tab about a substantially vertical axis extending through the rivet. 12. A metallic end closure adapted for interconnection to a neck of a beverage container, comprising: a central panel comprising a frangible score line and a hinge portion, the central panel and the hinge portion defining a tear panel of a primary opening;a tab positioned on the central panel, said tab having a nose end and a tail end, said nose end comprising a recess and said tab secured to said central panel by a rivet;said tear panel comprising a raised bead feature extending above a public side of the end closure and disposed beneath at least a portion of said recess of said nose end of said tab at least when the tab is provided in a first position;a longitudinal axis and a lateral axis extending along the end closure, said axes being substantially perpendicular to one another and intersecting proximal a center of the end closure;wherein said raised bead feature is radially offset from at least one of said longitudinal axis and said lateral axis;wherein in response to a user-applied force to lift said tail end of said tab, said tab is rotatable in a first rotational direction such that said nose end of said tab provides a force upon an upper portion of said raised bead feature and said tear panel; andwherein said force results in a second rotation of said tab, said second rotation comprising a rotation of the tab toward a lateral portion of the central panel and away from said raised bead feature. 13. The metallic end closure of claim 12, wherein a first opening area of the tear panel is provided on an opposing side of the longitudinal axis from the raised bead feature. 14. The metallic end closure of claim 12, wherein a contact between the raised bead and the tab prevents rotation of said tab about a substantially vertical axis when the tab and end closure are provided in a closed position.
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Tominaga Shinya (Yokohama JPX) Ito Joji (Tokyo JPX), Anti-impact easily opened can lid.
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