Cuboid Folding Box Perforation Concealment
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Solution Overview
Problem
Existing cuboid folding boxes for secondary packaging have visible perforation points when the top is separated from the bottom, which detracts from the visual appeal on store shelves.
Innovation Solution
A one-piece blank for a cuboid folding box is designed with specific panel segments and fold lines, including secondary panel segments that extend beyond perforation lines, ensuring that only punched edges are visible after separation, and the resulting tear-off edges are hidden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If perforation lines are used to separate the top from the bottom of the folding box, then the products can be accessed directly on the sales shelf without removing primary packaging, but the visible perforation points detract from the visual appeal of the packaging
Solution Approach 1:
The patent introduces a third dimension by adding secondary panel segments that extend beyond the perforation line in the folded state. These overlapping panels create a visual barrier that conceals the perforation points from the front view, effectively hiding the separation line while maintaining the separation functionality. This dimensional extension resolves the contradiction by allowing easy product access through perforation while preserving visual appeal through overlapping panel coverage.
Solution Approach 2:
The second secondary panel segments act as an intermediary element between the perforation line and the external viewer. By extending these panels beyond the perforation line and positioning them to overlap in the folded state, they serve as a visual mediator that blocks the view of the perforation points while allowing the perforation function to remain operational. This intermediary structure resolves the contradiction by mediating between the functional requirement for visible perforation access and the aesthetic requirement for clean appearance.
2Shape
If the blank includes additional secondary panel segments that extend beyond perforation lines, then the perforation edges are hidden improving visual appearance, but the blank complexity increases
Solution Approach 1:
The patent divides the blank into distinct main panel segments and secondary panel segments, each with specific functions. The secondary panels are segmented and positioned to overlap in the folded state, creating the visual concealment effect. This segmentation allows the complex appearance-hiding function to be achieved through modular panel elements rather than a monolithic complex structure, resolving the contradiction by organizing complexity into functional segments.
Solution Approach 2:
The second secondary panel segments serve multiple functions: they form part of the structural body of the folding box, provide the visual concealment of perforation points when overlapping in the folded state, and maintain the integrity of the blank structure. This multi-functionality reduces the need for additional separate components, resolving the contradiction by making the existing structure serve both structural and aesthetic purposes simultaneously.
Data Source
AI summary
A one-piece blank for a cuboid folding box includes five main panel segments arranged in a row and separated from one another on transverse sides via main fold lines, a second secondary panel segment adjoining a second main panel segment on a longitudinal side, including an edge, and adjoining the second main panel segment via a second secondary fold line, and a third secondary panel segment adjoining a third main panel segment on a longitudinal side via a third secondary fold line. The secondary fold lines are perpendicular to the main fold lines, a first perforation line extends over the third main panel segment and at least partially over the third secondary panel segments. The third secondary panel segments are each divided by the first perforation line into a first region adjacent to the second secondary panel segment and a second region adjacent to the fourth secondary panel segment. Shapes of the second secondary panel segments and a course of the first perforation line are such that, in a folded state, the second secondary panel segments overhang the first perforation line in a region of the third secondary panel segments.