Carton Closure Locking Features for Child-Resistant Security
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Solution Overview
Problem
Existing cartons lack effective locking mechanisms to prevent unauthorized access, particularly by children, for products that need to be kept secure.
Innovation Solution
A carton design featuring locking and opening features, including pull and push tabs, that securely retain the closure in a locked position and allow selective opening, using a blank that can be easily erected and closed without additional glue or machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locking features are added to retain the closure in a closed position, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is divided into separate functional components: locking features (protrusions) on the closure and corresponding recesses on the carton body, opening features (pull tab and push tab) for user interaction, and protective structures. This segmentation allows each component to perform its specific function while maintaining overall system simplicity.
Solution Approach 2:
The locking features automatically engage with the recesses when the closure is positioned in the closed position, providing self-locking functionality without requiring additional actuators or complex mechanisms. The structure itself provides the locking action through its geometry.
2Reliability
If locking features are protected from being accessed when the closure is closed, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The pull tab and push tab serve as intermediary elements that provide remote access to the locking mechanism. Users can operate these tabs from the exterior of the carton to engage or disengage the locking features without directly accessing the locked interface, maintaining security while enabling easy operation.
Solution Approach 2:
Instead of requiring users to directly manipulate the locking features, the design inverts the interaction by providing tabs that, when pulled or pushed, automatically actuate the locking mechanism through connected structural elements, simplifying the user's task.
3Ease of manufacture
If a blank is designed to be easily erected and closed without additional glue or machinery, then ease of manufacture is improved, but manufacturing precision requirements increase
Solution Approach 1:
The blank is pre-designed with fold lines, cut lines, and interlocking features (locking features and recesses) positioned and dimensioned during blank fabrication. This preliminary preparation ensures that when the blank is erected, the panels align correctly and the locking features engage properly without requiring additional adjustment or precise manual alignment during assembly.
Data Source
AI summary
A carton for holding one or more products. The carton can comprise a plurality of panels extending at least partially around an interior of the carton. Further, the carton can comprise a closure for at least partially closing an end of the carton. The closure can comprise locking features and opening features, the locking features being configured to at least partially retain the closure in a closed position when the locking features are in a locked configuration and the opening features being for selectively opening the closure. The opening features can comprise a pull tab and a push tab configured to at least partially open the closure when actuated.