Nested Locking Carton With Audible Child-Resistant Closure
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Solution Overview
Problem
Existing cartons lack effective mechanisms to prevent children from accessing potentially hazardous products, particularly those intended for infants and young children, by limiting their movement and providing clear indication of a locked position.
Innovation Solution
A carton design featuring an inner and outer construct with foldable locking tabs and flaps that engage through an engagement hole, allowing movement restriction and creating an audible locking sound when secured, ensuring the inner construct is securely received within the outer one.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locking features are added to prevent children from accessing products, then safety is improved, but device complexity increases
Solution Approach 1:
The inner construct is nested within the outer construct, with locking tabs and flaps integrated into both constructs. The locking mechanism uses nested components (locking tabs within locking flaps) that engage through engagement holes, creating a compact child-resistant system without requiring external locking devices.
Solution Approach 2:
The locking mechanism is self-contained within the carton structure itself. The locking tabs and flaps are integral parts of the inner and outer constructs that automatically engage when the carton is assembled, providing child-resistant protection without requiring separate locking devices or complex assembly steps.
2Ease of manufacture
If locking tabs and flaps are integrated into the carton structure, then ease of manufacture is improved, but device complexity increases
Solution Approach 1:
The locking tabs and flaps are merged with the inner and outer carton constructs during the manufacturing process. These components are formed as integral parts of the carton blanks using standard folding and cutting techniques, combining the packaging structure with the locking mechanism in a single manufacturing operation.
Solution Approach 2:
The carton constructs serve multiple functions: they provide product containment, structural protection, and child-resistant locking. The same inner and outer constructs that form the packaging also incorporate the locking tabs and flaps, eliminating the need for separate locking components and simplifying manufacturing.
3Ease of operation
If an audible locking sound is created to indicate locked position, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The locking mechanism incorporates an audible feedback element where the locking flap makes contact with the locking tab or carton panel to produce a audible clicking sound. This acoustic feedback clearly indicates to the user that the carton has been properly locked, providing immediate confirmation without requiring visual inspection or complex indicator mechanisms.
Solution Approach 2:
Instead of using complex mechanical indicators, lights, or electronic sensors to indicate the locked position, the invention uses a simple acoustic signal generated by the mechanical interaction of the locking components themselves. This replaces potential complex indication systems with a straightforward sound-based feedback mechanism.
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 unauthorized access to products by restricting movement between the constructs and providing an audible confirmation of the locked position, enhancing safety for children.
Implementation Method 1
The inner locking flap is moveable relative to the at least one inner panel to create an audible locking sound upon positioning the inner construct to the locked position
Data Source
AI summary
A carton comprising an inner construct comprising a plurality of inner panels extending at least partially around a first interior, an inner locking tab foldably connected to at least one inner panel, and at least one inner locking flap foldably connected to the at least one inner panel. An outer construct can comprise a plurality of outer panels extending at least partially around a second interior. The outer construct can comprise an outer locking tab foldably connected to at least one outer panel, and the inner locking tab and the inner locking flap cooperate with the outer locking tab to limit movement between the inner construct and the outer construct at a locked position. The inner locking flap being moveable relative to the at least one inner panel to create an audible locking sound upon positioning the inner construct to the locked position.