Carton Bottom Panel Locking Sections Prevent Disengagement
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Solution Overview
Problem
Existing paperboard cartons with locking sections tend to disengage when bottles are removed, leading to instability and potential loss of secure containment.
Innovation Solution
The carton design features a male locking member on one bottom panel and a female locking member on the other, with edge tabs that interlock to prevent movement between the panels, ensuring secure engagement even when bottles are removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking sections are used in paperboard cartons, then the carton can be manufactured with standard materials and structures, but the locking sections tend to disengage when bottles are removed
Solution Approach 1:
The locking section is divided into distinct functional elements: male locking members with hooks that engage with female locking members, and separate tab elements that provide additional retention. This segmentation allows each element to perform its specific function optimally while maintaining overall structural simplicity.
Solution Approach 2:
The male and female locking members are designed with asymmetric geometries where the male member has hooks that fit into corresponding receptacles on the female member. This asymmetric design creates a natural locking action that prevents disengagement without requiring complex mechanisms.
2Reliability
If locking sections are designed to securely hold bottles, then bottle containment is improved, but the carton uses more paperboard material
Solution Approach 1:
The tab elements are integrated directly into the bottom panel structure, merging the locking function with the structural panel. This integration eliminates the need for separate locking components and reduces overall material usage while maintaining secure bottle containment.
Solution Approach 2:
The bottom panel serves multiple functions: it provides structural support for the carton, incorporates the male locking members for engagement, and includes integrated tabs for additional retention. This multi-functionality reduces the need for separate components and minimizes paperboard material usage.
3Reliability
If locking sections are made more robust to prevent disengagement, then engagement sustainability is improved, but the manufacturing complexity increases
Solution Approach 1:
The locking sections are designed to self-align and self-engage during carton assembly. The male hooks automatically snap into the female receptacles when the bottom panels are brought together, eliminating the need for complex assembly mechanisms or additional fastening steps.
Solution Approach 2:
The locking members and tabs are pre-formed as integral parts of the bottom panels during the paperboard forming process. This preliminary action ensures that the locking features are ready for engagement before assembly, simplifying the final assembly process while maintaining robust locking capability.
Data Source
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AI summary
A carton with locking sections comprises a male panel section and a female panel section. The male panel section has an edge with protruding wings, and edge tabs are formed along the edge portion inboard of the wings. The female section has a pair of females configured to receive and interlock with the males. For locking the sections together, the edge tabs are hooked beneath the edge of the female section and the males extend over the top of the female section and are pressed and locked into the females. With this arrangement, the two sections are securely locked together with the edge tabs preventing the sections from moving toward one another and the males and females preventing them moving away from each other. The sections thus do not tend to disengage during transport or as containers of product within the carton are sequentially removed.