Inner Outer Bag Packaging Structure for Fragile Item Protection
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Solution Overview
Problem
Conventional packaging methods fail to effectively protect fragile items during transportation, as bags do not adequately prevent breakage, especially when shipped with heavier items, leading to damage or breakage of contents.
Innovation Solution
A packaging device forms a cushioned package by creating an inner bag within an outer bag, where the inner bag is secured with a multi-layer material and the outer bag is filled with a cushioning substance like pressurized gas or foam to absorb and distribute lateral forces, preventing damage to the contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional single-layer bags are used for packaging, then the packaging structure is simple and cost-effective, but the bags fail to prevent breakage of fragile items during transportation
Solution Approach 1:
The packaging is divided into multiple functional layers: an outer bag layer for structural integrity, an inner bag layer for direct product containment, and intermediate cushioning layers. This segmentation allows each layer to perform its specific function, with the outer bag absorbing lateral forces and the inner bag protecting the product, thereby resolving the contradiction between protection reliability and structural simplicity.
Solution Approach 2:
The patent employs composite multi-layer materials combining different properties: the outer bag uses materials with high lateral force resistance, while the inner bag uses materials optimized for product containment. This composite structure integrates the advantages of different materials to achieve both simplicity and effective protection against breakage.
2Productivity
If heavier items are shipped with fragile items in conventional bags, then shipping efficiency is improved, but the fragile items are destroyed or broken into pieces due to lack of protection
Solution Approach 1:
Cushioning layers are pre-positioned between the fragile items and heavier items before shipping. This beforehand cushioning absorbs the impact forces from heavier items during transit, preventing damage to fragile contents while allowing efficient co-shipping of different weight items, thus resolving the contradiction between shipping efficiency and protection from harmful factors.
3Reliability
If multiple layers are adhered together to form multi-layer material, then specific tasks such as oxygen prevention are improved, but the complexity of forming and sealing the bags increases
Solution Approach 1:
The multi-layer structure is segmented into distinct functional layers that are adhered together, with each layer performing specific tasks such as oxygen barrier properties and graphic reception. This segmentation maintains the protective functions while allowing standardized formation and sealing processes for each layer, reducing manufacturing complexity compared to integrated multi-functional materials.
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 effectively minimizes damage to fragile items during transport by creating a protective cushion between the inner and outer bags, ensuring safer handling and reduced breakage of contents.
Implementation Method 1
the outer bag is filled with a cushioning substance like pressurized gas or foam to absorb and distribute lateral forces
Data Source
AI summary
A packaging device forms a cushioned package for securing and transporting fragile products, where the fragile products are secured within an inner bag that is coupled within a pressurized outer bag. In some embodiments, the inner bag and outer bag may be formed concurrently using an illustrative vertical form fill sealing device. The inner bag may include a first multi-layer material and the outer bag may include a second multi-layer material, each material having specific functional properties to protect the product contained within the package. During formation of the packaging, the first and second multi-layer materials may be sealed together, such as at ends of the package and/or along an edge seam created by an edge sealer. A width of the first multi-layer material may be less than a width of the second multi-layer material.