Rotatable Cover Can End with Interlocking Track for Re-closure
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Solution Overview
Problem
Beverage cans with easy-open ends cannot be re-closed, leading to spillage and loss of carbonation, as the opening panel remains permanently open, and existing re-closable solutions are costly and complex to manufacture.
Innovation Solution
A re-closable can end design featuring a center panel with a pour opening, a rotatable cover that interlocks with a first wall to prevent access when closed and exposes the opening when rotated, utilizing a hinge and protrusions for secure closure and tamper-evident features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional easy-open end is used, then the can can be easily opened, but the opening remains permanently open and cannot be re-closed
Solution Approach 1:
The cover is designed to be rotatable relative to the center panel, transitioning between a closed position (covering the pour opening) and an open position (exposing the pour opening). This dynamic movement allows the can end to be both easily opened and re-closable, resolving the contradiction between ease of operation and reliability.
2Reliability
If a re-closable mechanism is added to prevent spillage, then content quality is preserved, but manufacturing cost and complexity increase
Solution Approach 1:
The can end is divided into distinct functional segments: a center panel with the pour opening, a first wall extending from the center panel, and a separate cover that rotates independently. This segmentation allows each component to perform its specific function while keeping the overall mechanism simple and manufacturable.
Solution Approach 2:
The cover includes interlocking features (protrusions and recesses) that automatically engage with the first wall when the cover is in the closed position, providing self-latching functionality without requiring additional complex mechanisms. This self-service feature prevents spillage while maintaining manufacturing simplicity.
3Duration of action of stationary object
If a rotatable cover with interlocking features is implemented, then multiple opening/closing cycles are enabled, but the structure becomes more complex
Solution Approach 1:
The hinge connecting the cover to the center panel and the interlocking features between the cover and first wall are integrated into a unified rotational mechanism. This merging of functions allows the cover to rotate smoothly while maintaining secure engagement during multiple opening and closing cycles, without requiring separate complex mechanisms for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables multiple opening and closing cycles without detachment, preventing spillage and preserving content quality by maintaining a sealed position, while being cost-effective and easy to manufacture using metal materials.
Implementation Method 1
The cover includes a hinge separating a first portion of the cover and a second portion of the cover. The second portion of the cover to pivot relative to the first portion about the hinge to enable the cover to rotate between a first position to conceal the pour opening and a second position to expose the pour opening.
Data Source
AI summary
Re-closable mobile packages are disclosed. An example can end includes a center panel having a pour opening. A first track extends from an upper surface of the center panel around a perimeter of the pour opening. A cover is rotatably coupled to the center panel about a rotational axis. The cover includes a second track. The second track extends partially around a perimeter of the cover such that the second track defines at least a first gap. The second track to engage the first track when the cover is in a closed position.