Reclosable Container Inversion Mechanism for Hygiene
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Solution Overview
Problem
Prior reclosable containers compromise hygiene due to exposure of the cap's external surface before first use, risking contamination when reused to reclose the package, and lack effective tamper-proofing.
Innovation Solution
A reclosable container design featuring a tubular closure with an internally threaded surface and a facilitated fracture zone for easy detachment and reattachment, combined with a lid that can be overturned to reseal without exposing external surfaces to the product, ensuring hygiene and tamper evidence through integrated coupling mechanisms and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cap is detached and the package is opened for the first time, then the product can be accessed and used, but the external surface of the cap is exposed to the atmosphere and risks contamination
Solution Approach 1:
The cap is designed to be inverted after first opening, transforming the previously external (contaminated) surface into an internal surface that contacts the product, while the previously internal surface becomes external. This inversion resolves the contamination issue by ensuring the surface that touches the product has not been exposed to the atmosphere.
Solution Approach 2:
The patent uses visual indicators (different colors or markings on internal vs external surfaces) to guide users in correctly inverting the cap. These visual cues ensure proper orientation during reclosing, preventing contamination by ensuring the clean internal surface contacts the product.
2Adaptability or versatility
If the cap is used to reclose the package in an overturned configuration, then the package can be sealed multiple times, but the external surface could pollute the product in the package
Solution Approach 1:
The cap's design enables it to be inverted and reclosed multiple times while maintaining hygiene. The inversion process ensures that the surface contacting the product is always the internal surface (never exposed to atmosphere), while the external surface remains exposed but does not contact the product, thus enabling versatile reclosing without pollution risk.
3Ease of manufacture
If a simple cap structure is used, then manufacturing costs are reduced and construction is simplified, but hygiene protection and tamper-proofing capabilities are compromised
Solution Approach 1:
The cap transitions from a static sealing component to a dynamic element that is inverted during first use. This dynamic inversion, enabled by the integral design of the cap with the mouth, provides tamper evidence and hygiene protection without requiring complex additional components, thus maintaining ease of manufacture while improving reliability.
Solution Approach 2:
The cap is integrally formed with the mouth, merging two components into one. This integration simplifies manufacturing while the combined structure enables the inversion mechanism that provides hygiene protection and tamper evidence, resolving the contradiction between simplicity and reliability.
Data Source
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AI summary
A reclosable container has a mouth (3) and a closure (4) having an internally threaded tubular wall (41) connected to the mouth by a facilitated fracture zone (5) and protected by a lid (6) having a hinge (7) arranged on the tubular wall on the side opposite the facilitated fracture zone.