Clamshell Overcap with Living Hinge for Tamper-Indicating Electronic Tag
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Solution Overview
Problem
Existing overcaps for rotatable bottle caps are not cost-effective to manufacture and assemble, and they do not provide a clear indication when the cap has been removed, compromising the security benefits of electronic tags.
Innovation Solution
A one-piece, clamshell-style overcap with a living hinge and snap-fit mechanism that supports an electronic tag, preventing unauthorized cap removal while allowing easy assembly and indication of tampering, which can be removed post-purchase by cutting the thinned area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-piece overcap design is used to support an electronic tag on a bottle cap, then the security function is achieved, but the manufacturing and assembly cost increases
Solution Approach 1:
The patent combines multiple functions into a single integrated overcap structure that simultaneously supports the electronic tag, provides tamper indication, and secures the bottle cap. This one-piece design eliminates the need for separate components, reducing manufacturing complexity and assembly costs while maintaining all security functions.
Solution Approach 2:
The overcap is designed as a multi-functional component that performs multiple roles: it serves as a mounting structure for the electronic tag, provides visual tamper indication through its breakable property, and mechanically secures the bottle cap to the container. This universal design consolidates what would otherwise require multiple separate components.
2Reliability
If the overcap is made secure and difficult to remove, then theft prevention is improved, but post-purchase usability is reduced
Solution Approach 1:
The overcap incorporates a thinned section that changes its structural parameter from strong to weak at a specific location. This allows the cap to be securely attached during transport and display, then easily removed by the consumer after purchase by applying minimal force to break the thinned section, resolving the contradiction between security and usability.
Solution Approach 2:
The overcap is pre-designed with a predetermined break point (thinned section) that anticipates the need for removal. This preliminary structural preparation allows the cap to function as a secure restraint during the product lifecycle, then transition to an easily removable state for consumer use without requiring tools or complex actions.
Data Source
AI summary
An overcap is provided for placement on a cap for a container. The overcap includes a pair of mating components separated by a hinge. Interlocking means is provided for securing the components together about the cap. The interlocking means couples the components for rotation about the cap without causing removable rotation of the cap and preventing non-destructible detachment of the components. The components define a lip for positioning beneath the cap for preventing removal of the overcap therefrom without destructible detachment of the components. The overcap supports an electronic tag therein. The mating components of the overcap include a severable location for removing the overcap from the cap.