Reusable Box Lid Closure for Temporary and Tamper-Proof Sealing
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Solution Overview
Problem
Existing shipping boxes lack a double closure system that allows for temporary and tamper-proof sealing, often interfering with contents and not allowing safe, repeated opening and closing before and after shipping.
Innovation Solution
A shipping box design featuring a sealing element and a temporary closure structure, both positioned on a flap of the lid, with a tab that fits into a complementary slot and a tear strip for secure, repeated opening and closing, using corrugated material for reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closure fin with width greater than slot length is used to improve inviolability, then the box cannot be opened and closed repeatedly, but this prevents temporary closure functionality
Solution Approach 1:
The closure system is divided into two separate components: a closure fin for inviolable sealing and side tabs for temporary closure. This segmentation allows each component to perform its specific function independently without interfering with the other, resolving the contradiction between inviolability and reusability.
Solution Approach 2:
The adhesive tape acts as an intermediary element that works in conjunction with both the closure fin and side tabs. It provides the sealing function while allowing the mechanical components (fin and tabs) to perform their respective roles without direct conflict.
2Reliability
If a closure fin with width greater than slot length is used to improve inviolability, then the fin interferes with box contents, but removing it reduces security
Solution Approach 1:
The harmful interference function is extracted from the closure fin by creating a separate, narrower version of the fin that fits properly within the slot. The original wide fin's interference problem is removed while retaining the security function through the narrower design combined with adhesive sealing.
3Ease of operation
If side tabs are used for temporary closure, then the box cannot be kept closed before shipping when turned upside-down, but this limits pre-shipment security
Solution Approach 1:
The adhesive tape is applied in advance to seal the box securely before shipping. This preliminary sealing action ensures that even when the box is turned upside-down, the contents remain secure while the side tabs provide temporary closure functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure, repeated temporary closure and permanent sealing without external aids, facilitating safe handling and access to contents before and after shipping.
Implementation Method 1
the sealing element comprises an adhesive strip provided with a protective tape
Implementation Method 2
the temporary closure structure comprises at least one tab housed at least in a complementary slot
Implementation Method 3
the box is formed from a single sheet of corrugated material comprising a plurality of parallel channels
Data Source
AI summary
A reusable box includes a bottom, side walls, a lid, a sealing element on the lid to seal the box, and a temporary closure structure on the lid inboard of sides of the lid. The temporary closure structure includes a tab with a folding line to temporarily close the lid. The tab is hinged along the folding line to enable insertion into a slot on a surface of the reusable box in a temporarily closed configuration. The slot has a narrow portion defined by a projection of the surface of the box into the slot, with an opening along the fold line positioned along the narrow portion of the slot in the temporarily closed configuration. The sealing element is located between a free side of the lid and the temporary closure structure such that the reusable box is temporarily closable before and after sealing the reusable box.