Easy-open can end, method for manufacturing can end, and beverage product filled in can container using the same
AssigneeKirin Beer Kabushiki Kaisha
InventorsTadashi Nishibe, Takahiko Okada
Life of this patent
Estimating the term…
Abstract
An easy-open can end including an inclined surface formed in a direction of a tab tail of a pull-tab from a center of a panel such that the center of the panel becomes a maximum concave portion, a lower surface of the pull-tab abuts on the inclined surface or is brought close to the inclined surface along the inclined surface, the pull-tab has a pit S formed by pressing-down forming, and the pull-tab is bent by the pit S. A method for manufacturing an easy-open can end including a process for pressing down part of an outer rim of the pull-tab after or at the same time as a process for fixing the pull-tab to the panel.
Claims7
An easy-open can end comprising:
- a score that is carved into a faucet shape in an upper surface of a panel, an opening piece that is surrounded by the score, and a pull-tab that is fixed to a center in the upper surface of the panel with a rivet interposed therebetween, wherein the opening piece is pushed down to open a can while the score is rip-opened by a nose portion of the pull-tab,
- an inclined surface is formed such that the center of the panel becomes a maximum concave portion in a direction of a tab tail of the pull-tab from the center of the panel, a lower surface of the pull-tab abuts on or is brought close to the inclined surface along the inclined surface, the pull-tab has a pit in an outer rim, the pit being formed by pressing-down forming, and the pull-tab is bent by the pit.
A method for manufacturing an easy-open can end comprising:
- a process for carving a score into a faucet shape in an upper surface of a panel;
- and a process for fixing a pull-tab to the upper surface of the panel with a rivet interposed therebetween, the rivet being located in center of the panel,
- wherein part of an outer rim of the pull-tab is pressed down after or at the same time as the process for fixing the pull-tab to the panel.
Dependencies are inferred from the claim text.