Corrugated Packaging Box Slits for Visible Opening Traces
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Solution Overview
Problem
Existing packaging boxes for cartridges in image forming apparatuses can be incorrectly opened, leading to reduced quality of the cartridges and potential reuse as fake products, with previous solutions failing to effectively leave a trace of opening.
Innovation Solution
A packaging box design featuring depth-controlled slits and an alteration-prevention seal that ensures the box leaves a clear trace of opening, even when opened normally, by using depth-controlled slits that separate the intermediary layer of corrugated cardboard and an alteration-prevention seal that tears irreversibly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a packaging box is designed to be easily opened for cartridge installation, then ease of operation is improved, but the risk of incorrect opening and quality reduction increases
Solution Approach 1:
The packaging box is pre-equipped with depth-controlled slits and an alteration-prevention seal that automatically activate upon opening. The slits are pre-cut to a specific depth that causes the intermediary layer to separate and the seal to tear, creating an irreversible opening trace before the user even attempts to open the box.
Solution Approach 2:
The intermediary layer of corrugated cardboard acts as a mediator between the outer and inner layers. When opening force is applied, this intermediary layer separates along the depth-controlled slits, creating a visible trace that prevents the box from being closed back without leaving evidence of opening.
2Ease of manufacture
If a packaging box uses simple adhesive sealing, then ease of manufacture is improved, but the ability to prevent reuse and maintain authenticity deteriorates
Solution Approach 1:
The packaging box structure is segmented into multiple layers (outer layer, intermediary layer, inner layer) with depth-controlled slits creating separation planes. The alteration-prevention seal is positioned to span across these layers, ensuring that opening the box causes irreversible separation and visible damage that prevents reuse.
Solution Approach 2:
The depth-controlled slits are designed with specific depth parameters that cause the intermediary layer to separate at a controlled point. This parameter control ensures that when the box is opened, the seal tears and the layers separate in a way that creates permanent visual evidence of opening, transforming the box from a reusable state to a single-use state.
3Loss of information
If depth-controlled slits are made deeper to ensure layer separation, then the trace of opening becomes more visible, but the structural strength of the packaging box deteriorates
Solution Approach 1:
The depth-controlled slits are designed with non-uniform depth characteristics - deeper at certain locations to ensure separation and visible tracing, while maintaining adequate depth elsewhere to preserve overall structural strength. The intermediary layer is strategically positioned and dimensioned to provide sufficient strength while allowing controlled separation along the slit paths.
Data Source
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AI summary
A packing box formed of a corrugated board paper includes a box body accommodating an object, an inner lid closing an opening at a side of the box body, and an outer lid folded at a folding portion to overlap an outer surface facing an outside of the inner lid. A rear surface of the outer lid includes an adhesive portion adhered to the outer surface of the inner lid, and a first slit cut from the rear surface and not reaching up to a front surface. The first slit is provided so as to surround the adhesive portion together with the folding portion. The rear surface includes a second slit cut from the rear surface and not reaching up to the front surface. The second slit is cut so as to extend between an outer edge of the outer lid and the first slit from the outer edge toward the first slit.