Child-Resistant Packaging Slider Locking Mechanism
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Solution Overview
Problem
Current child-resistant packaging for pharmaceutical products is inadequate in preventing access by children, as existing solutions do not effectively hinder the dispensing of contents without also complicating access for adults.
Innovation Solution
A package design featuring a releasable locking feature with a slider and container, where the locking edge is defined by a glue flap connected to a top flap, requiring manual pressure on a release area to deflect the locking edge out of abutment, making it difficult for children to access the product while allowing easy access for adults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent child access, then child resistance is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged into the existing container structure by using the container's own sidewall and top flap components as part of the locking system. The locking edge is formed by the interaction between the top flap and the sidewall, eliminating the need for separate locking components and reducing overall device complexity while maintaining child resistance functionality.
Solution Approach 2:
The locking mechanism is designed to be self-contained within the container structure, where the top flap and sidewall automatically engage to form the locking edge. The release area is integrated into the top flap itself, allowing the container to lock and unlock without requiring external locking devices or complex mechanical systems.
2Reliability
If a releasable locking feature is implemented, then child resistance is improved, but ease of operation for adults may be compromised
Solution Approach 1:
The top flap is designed with differentiated local qualities: a rigid portion that forms the locking edge and a flexible release area that can be locally deformed. This local quality differentiation allows the locking mechanism to be secure against children while enabling easy manual release for adults through simple pressure application to the release area.
Solution Approach 2:
The locking mechanism utilizes parameter changes in the top flap material, specifically the transition from a rigid locking edge to a flexible release area. When pressure is applied to the release area, the material deformability changes, allowing the locking edge to be deflected and released. This parameter change enables easy operation for adults while maintaining security for children.
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
The design enhances child resistance by requiring specific actions and pressure application to release the locking mechanism, thereby preventing accidental dispensing by children while maintaining ease of use for adults.
Implementation Method 1
a release area provided in the sidewall of the container for releasing a locking abutment between the locking edges; wherein the locking edges cooperate to prevent movement of the slider out of the open end of the container for permitting access to the product until a user manually applies pressure to the release area to deform the release area and thereby deflect the locking edge of the slider out of abutment with the locking edge of the container
Implementation Method 2
an inner surface of the top flap is adhered to an exterior surface of a first glue flap, the first glue flap being connected to an opposite facing panel of the container along a foldline, wherein the first glue flap provides the locking edge of the container associated with the sidewall
Data Source
AI summary
A package includes a container having an open end and a closed end and a slider slidably mounted within the container. A releasable locking feature is provided at a side of the package, which comprises locking edges associated with a sidewall of each of the slider and container respectively, and a release area for releasing a locking abutment between the locking edges. The sidewall of the container having the locking edge associated therewith is defined by a panel having a first transverse cutline defining a top flap between the cutline and the open end of the container, with the top flap being connected to a first facing panel of the container along a foldline. An inner surface of the top flap 16 is adhered to an exterior surface of a first glue flap 10, the first glue flap being connected to an opposite facing panel of the container along a foldline. The first glue flap provides the locking edge of the container.