Child-Resistant Package Sliding Inner and Outer Design
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Solution Overview
Problem
Existing child-resistant packaging solutions are complex and difficult to produce on conventional packaging machines, which hinders their widespread adoption and effectiveness in preventing access by children to hazardous substances like alternative tobacco and cannabis products.
Innovation Solution
A child-resistant pack design featuring a security card with snap-in tabs and stop tabs, integrated into the packaging structure, which requires a two-handed operation and specific dexterity to open, ensuring secure closure and ease of production on conventional machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If child-resistant packaging is designed to prevent children from accessing contents, then safety effectiveness is improved, but device complexity increases making production difficult on conventional machines
Solution Approach 1:
The packaging is divided into an outer package and an inner package that can be separated. The inner package contains the actual contents while the outer package provides the child-resistant opening mechanism. This segmentation allows the safety features to be isolated to specific components rather than requiring the entire packaging structure to be complex.
Solution Approach 2:
The inner package is nested within the outer package, with the inner package being slidable relative to the outer package. This nesting arrangement allows the child-resistant features to be concentrated in the interface between the two packages rather than distributed throughout the entire packaging system, simplifying overall production.
2Reliability
If complex opening mechanisms are used to prevent child access, then safety is improved, but ease of manufacture deteriorates due to difficulty producing on conventional packaging machines
Solution Approach 1:
By separating the packaging into distinct outer and inner packages with specific child-resistant features located at their interface, the design allows conventional packaging machines to produce each component using standard processes, while the child-resistant functionality emerges from their combination rather than requiring specialized equipment.
Solution Approach 2:
Instead of making the entire packaging structure complex to achieve child-resistance, the invention inverts the approach by using a simple outer package and inner package that combine to create the safety mechanism. The complexity is inverted from the overall structure to the interaction interface between components.
3Reliability
If secure closure mechanisms are implemented, then child-resistant protection is improved, but ease of operation deteriorates requiring two-handed operation and specific dexterity
Solution Approach 1:
The inner package is designed to be slidable within the outer package, creating a dynamic opening mechanism that moves along a defined path. This sliding action provides natural feedback and guidance to the user, making the operation intuitive despite requiring two hands, as the movement direction and force application points are clearly indicated by the package structure itself.
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 effectively prevents children from accessing the contents by requiring specific dexterity and operation, while allowing adults to easily open the package, thus meeting child-resistant standards and being cost-effectively producible on conventional machinery.
Implementation Method 1
which are held by spring elements (30) in engagement with recesses (32) of the outer package (11)
Implementation Method 2
locking devices assigned to the inner packaging are assigned to a security card which is attached to a side wall of the inner packaging
Data Source
Figure 1~2
Figure 3~6
Figure 7~9
AI summary
The invention relates to a package with a tamper-evident opening device, in particular a child-resistant package (10), comprising an outer package (11) and an inner package (12), wherein the inner package (12) is at least partially enclosed in the outer package (11), and wherein the inner package (12) is slidably arranged within the outer package (11) for opening and closing the package (10), and wherein the package (10) has at least one locking element as a tamper-evident opening device to make it difficult or impossible to open the package (10) or to gain access to the products contained in the inner package (12). The invention is characterized in that the at least one locking element is effective between the inner package (12) and the outer package (11) to make it difficult or impossible to move the inner package (12) within the outer package (11) to open the package (10).