Child-Resistant Packaging Tray Sleeve Protrusion Mechanism
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Solution Overview
Problem
Current child-resistant packaging solutions are inadequate in preventing access by young children due to ease of opening, as they often rely on simple mechanical locks that can be defeated with minimal dexterity.
Innovation Solution
A child-resistant package design featuring an inner tray and outer sleeve with engagement protrusions that require simultaneous disengagement through access holes, providing a secure closed position that is difficult for children to open while allowing adults to access the contents easily.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple mechanical locks are used in child-resistant packaging, then the device complexity is reduced, but the reliability of preventing child access deteriorates
Solution Approach 1:
The packaging is divided into an inner tray and an outer sleeve as separate components. The tray has protrusions that engage with corresponding recesses in the sleeve, creating multiple discrete engagement points that must all be disengaged simultaneously. This segmentation transforms a single complex lock into multiple simple engagement features distributed across the structure.
Solution Approach 2:
The engagement mechanism operates in multiple dimensions: the tray must be pushed axially to disengage protrusions from recesses, while access holes provide a lateral dimension for finger insertion. This multi-dimensional approach replaces traditional rotational or lateral locking mechanisms with a straightforward push-action combined with lateral access points.
2Reliability
If engagement protrusions are designed to prevent easy separation, then the reliability of child resistance is improved, but the ease of operation for adults deteriorates
Solution Approach 1:
Access holes serve as intermediaries between the adult user and the engagement protrusions. These holes allow fingers to reach inside and push the protrusions inward without requiring direct manipulation of the protrusion ends. This intermediary access method maintains strong engagement during normal use while enabling easy opening when needed.
Solution Approach 2:
The packaging design allows the adult user to open it using their own fingers through the access holes, without requiring keys, tools, or external assistance. The protrusions are designed to be pushed inward by finger pressure applied through the access holes, making the system self-operating for authorized users.
3Reliability
If the tray is entirely enclosed within the sleeve in the closed position, then the reliability of child resistance is improved, but the ease of detecting the closed state deteriorates
Solution Approach 1:
The sleeve is made translucent or transparent, allowing visual detection of the tray's position and the engagement state of protrusions without requiring physical manipulation or complex sensors. The translucent material enables adults to verify that the packaging is properly closed and sealed, providing clear visual feedback while maintaining the enclosed protective state.
Data Source
AI summary
A child-resistant package comprising a tray and a sleeve. The tray is configured to be inserted into said sleeve. The tray comprises external protrusions and the sleeve comprises one or more internal protrusions and access holes. The internal protrusions are configured to engage with the external protrusions when the tray and the sleeve are in a closed position, such that the tray is substantially prevented from being taken out of the closed position without disengaging the external protrusions from the internal protrusions. Each of the access holes overlaps with an end of each of the external protrusions, such that a user may access and disengage the external protrusions from the one or more internal protrusions, such that the tray is no longer prevented from being taken out of the closed position.