Folding Box Closure Flap Hooked Partition Locking
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Solution Overview
Problem
Existing packaging boxes for nachos and dips face issues with closure flaps opening unintentionally due to content weight, compromising the aesthetic appearance and requiring additional work steps for secure closure.
Innovation Solution
The integration of a hook-shaped projection on the inner partition wall that automatically engages with the closure flap's opening, ensuring secure locking without impairing the box's appearance or requiring additional steps, by penetrating into the tuck-in flap's opening and hooking onto its edge, thus preventing unintentional opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism with protrusions and notches is used to prevent unintentional opening, then the closure flap is secured, but the aesthetic appearance is compromised and additional complexity is introduced
Solution Approach 1:
The locking function is merged with the existing partition wall structure by adding a hook-shaped projection to it. This combines the partition wall's structural role with the locking function, eliminating the need for separate locking tabs or protrusions that would compromise aesthetics. The hook-shaped projection is integrated into the partition wall, maintaining a clean appearance while providing reliable locking.
Solution Approach 2:
The closure flap system serves itself by automatically locking through the interaction between the hook-shaped projection on the partition wall and the opening in the tuck-in flap. When the closure flap is closed and the tuck-in flap is inserted, the hook automatically engages with the opening, providing self-locking without requiring additional manual steps or external locking mechanisms.
2Reliability
If an additional locking tab is used to secure the flap, then the closure is more secure, but the device complexity increases and aesthetic appearance is impaired
Solution Approach 1:
The locking function is merged with the existing partition wall structure by adding a hook-shaped projection to it. This combines the partition wall's structural role with the locking function, eliminating the need for separate locking tabs or protrusions that would compromise aesthetics. The hook-shaped projection is integrated into the partition wall, maintaining a clean appearance while providing reliable locking.
Solution Approach 2:
The partition wall serves multiple functions: it provides structural support, divides the box interior, and now also provides the locking function through the hook-shaped projection. This multi-functionality eliminates the need for separate locking components, reducing device complexity while maintaining security.
3Reliability
If the closure flap is secured with protrusions and notches, then the flap remains closed, but the mechanism is visible and detracts from aesthetic appearance
Solution Approach 1:
The locking function is merged with the existing partition wall structure by adding a hook-shaped projection to it. This combines the partition wall's structural role with the locking function, eliminating the need for separate locking tabs or protrusions that would compromise aesthetics. The hook-shaped projection is integrated into the partition wall, maintaining a clean appearance while providing reliable locking.
Data Source
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AI summary
The invention relates to a packaging box (10) with four side walls (16, 18, 20, 22), at least one closure flap (54) pivotally connected to a side wall (18) and having a tuck-in flap (58) that can be inserted into an interior space (32) of the box (10) near the opposite side wall (16), and an inner partition (30) parallel to the side walls (20, 22). According to the invention, a hook-shaped projection (90) is provided on the partition (30) which, when the tuck-in flap (88) is inserted into the interior space (32) during the closing of the closure flap (54), automatically engages in an opening (88) through which the tuck-in flap (58) passes and subsequently holds the closure flap (54) in the closed position.