Display Card Support Tubes for Stacking Strength
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Solution Overview
Problem
Display cards made from sheet materials like paperboard lack sufficient structural support and stacking strength, often requiring external packaging or clamshells for stability, and tend to fall when the outer carton is emptied, making product visibility and stacking challenging.
Innovation Solution
The display card structure incorporates a front and back layer with a blister and support tubes formed by folding the layers, providing enhanced stacking strength and stability through the creation of a hollow beam or tube structure that can support loads greater than the card alone, using methods like heat sealing or adhesives with materials like MeadWestvaco's ENDURANCE paperboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If display cards are made from thin sheet materials like paperboard, then the cards are lightweight and easy to manufacture, but they lack sufficient structural support and stacking strength
Solution Approach 1:
The patent transforms the flat 2D card structure into a 3D structure by forming support tubes that extend perpendicular to the card face. These tubes create a hollow beam structure that provides stacking strength while maintaining a compact form factor. The tubes are formed by folding and sealing portions of the card panels, creating three-dimensional support elements from two-dimensional sheet material.
Solution Approach 2:
The patent combines the thin paperboard card material with formed support tube structures to create a composite construction. The support tubes act as reinforcement elements that work together with the card panels to provide enhanced structural support and stacking strength, effectively creating a composite structure that leverages the strengths of both components.
2Strength
If external packaging or plastic clamshells are used to provide stacking strength, then structural support is improved, but the overall size and complexity of the packaging system increases
Solution Approach 1:
The patent merges the card structure with integrated support tubes formed from the same paperboard material. Instead of using separate external packaging or plastic clamshells, the support tubes are constructed as an integral part of the card assembly by folding and sealing portions of the card panels themselves, creating a unified structure that provides both display and support functions.
Solution Approach 2:
The patent extracts the support function from external packaging and incorporates it directly into the card structure through the formation of integrated support tubes. This eliminates the need for separate external support structures while maintaining the stacking strength required for stable display.
3Ease of manufacture
If display cards lack structural support, then manufacturing is simpler and materials are lighter, but the cards cannot stand upright or withstand stacking forces
Solution Approach 1:
The support tubes are pre-formed as integral parts of the card structure during the manufacturing process, rather than being added as separate components later. The tubes are created by folding and sealing portions of the card panels themselves, ensuring structural integrity is built into the base construction and eliminating the need for additional assembly steps.
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
The solution enables display cards to stand upright and withstand stacking forces, improving product visibility and stability without additional support structures, allowing for freestanding display and enhanced stacking capabilities.
Implementation Method 1
using methods like heat sealing or adhesives
Implementation Method 2
using methods like heat sealing or adhesives
Implementation Method 3
the support tube is formed by folding the front layer relative to the back layer
Data Source
AI summary
A display card (200) including a front layer (230) and a back layer (210), wherein at least a portion of the front layer (230) is connected to at least a portion of the back layer (210), a blister (220) supported by at least one of the front layer (230) and the back layer (210), and at least one support tube (240) defined by the front layer (230) and the back layer (210), wherein the support tube is formed by folding the front layer (230) relative to the back layer (210).