Flip-Top Closure With Frangible Tamper Evidence for Recyclability
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Solution Overview
Problem
Conventional tamper-evident closures for containers often result in waste due to separation from the container, leading to reduced recyclability and increased environmental impact, and there is a need for a tamper-evident system that minimizes plastic use, is lightweight, and does not require specific orientations during manufacturing.
Innovation Solution
A flip-top tamper-evident closure system with a flip-top lid and a main body connected by a hinge, featuring a tamper-evident element that fractures upon first opening, ensuring the closure remains attached to the container and providing visual evidence of tampering, while being made from recyclable materials and minimizing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tamper-evident closures are used, then tamper evidence is provided, but the closure separates from the container leading to reduced recyclability
Solution Approach 1:
The closure is designed to remain merged/attached to the container through the tamper-evident mechanism. When the closure is opened, the frangible fingers break but the closure body remains attached to the container rim, ensuring both tamper evidence and recyclability are achieved simultaneously.
2Reliability
If conventional tamper-evident mechanisms are used, then tamper evidence is provided, but additional packaging materials and waste are generated
Solution Approach 1:
The invention extracts the essential tamper-evident function from the closure itself, eliminating the need for separate tamper-evident bands, shrink wrap, or additional paraphernalia. The frangible fingers integrated into the closure provide tamper evidence without requiring extra packaging materials.
Solution Approach 2:
The closure serves multiple functions: it seals the container, provides tamper evidence through frangible fingers, and remains attached for recycling. This multi-functionality eliminates the need for separate components that would increase waste.
3Weight of moving object
If the closure is made lightweight and low-profile, then plastic use is minimized, but structural integrity for tamper evidence may be compromised
Solution Approach 1:
The closure employs local quality by concentrating material where needed for strength (in the frangible fingers and attachment points) while minimizing material elsewhere. The frangible fingers are designed with specific thickness and geometry to provide necessary structural integrity for tamper evidence while keeping the overall closure lightweight.
Data Source
AI summary
A dispensing closure for a container that includes a flip-top lid, a main body, a first hinge integrally molded to and pivotably connecting the lid to the main body, and a tamper-evident element. The first hinge is located on a top surface of the main body and permits pivoting of the lid relative to the main body between a closed and open position. The tamper-evident element is initially intact and secured to portions of both the lid and the top surface of the main body in the closed position before the lid is first pivoted open, initial sealing state. The tamper-evident element is configured to fracture where the tamper-evident element is secured to the lid when the lid is first pivoted to the open position following the initial sealing state, with a portion of the tamper-evident element remaining secured to the top surface of the main body.