Packaging Container Ventilation Seams Shielding Airflow

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Solution Overview

Problem

Existing packaging containers for bulk goods face challenges in achieving optimal ventilation while maintaining structural integrity, particularly in preventing uncontrolled gas release and material loss during transportation and storage.

Innovation Solution

A packaging container design featuring a multi-layer ventilation area with inner and outer openings formed in connecting seams, equipped with a shielding element to deflect air flow and prevent direct passage, and utilizing weakened seam sections for controlled pressure relief.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If inner openings and outer openings are made by perforations or needling in multi-layer ventilation areas, then ventilation function is improved, but production complexity and processing steps increase

Engineering Contradiction:

Improveventilation functionVSAvoidproduction complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the ventilation function from the body of the packaging container and relocates it to the connecting seams. By forming openings directly in the seams where layers are joined, the patent eliminates the need for separate perforation or needling steps in the container walls, thereby simplifying production while maintaining ventilation reliability

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges the ventilation opening formation process with the seam sealing process. The openings are created as integral parts of the connecting seams during the same manufacturing operation, combining two functions (sealing and venting) into a single structural element, thus reducing production complexity

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If multiple chambers and passages are created in the ventilation area, then ventilation performance is improved, but manufacturing complexity increases

Engineering Contradiction:

Improveventilation performanceVSAvoidmanufacturing simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The invention segments the ventilation function into multiple openings distributed along the connecting seams rather than creating complex multi-chamber structures. This segmentation approach achieves effective ventilation through simpler, more manufacturable opening configurations in the seam areas

Inventive Principle:

Principle #1Segmentation

3Loss of substance

If shielding elements are added to deflect air flow, then material loss prevention is improved, but device complexity increases

Engineering Contradiction:

Improvematerial loss preventionVSAvoidstructure complexity

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The shielding function is merged with the connecting seam structure itself. The seam acts as both the closure element and the shielding element that deflects air flow, eliminating the need for separate shielding components and reducing overall structural complexity while preventing material loss

Inventive Principle:

Principle #5Merging (Combining)

4Strength

If welded seams are made completely sealed, then structural integrity is improved, but gas release control capability worsens

Engineering Contradiction:

Improvestructural integrityVSAvoidgas release control

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The invention applies local quality by creating openings in specific locations within the connecting seams while maintaining sealed construction in other areas. This allows the seam to provide both structural integrity in sealed regions and controlled gas release capability through localized openings, achieving both requirements simultaneously

Inventive Principle:

Principle #3Local quality

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

Ensures effective ventilation and simplified production by eliminating the need for separate processing steps, such as needling, while preventing material loss and ensuring structural integrity through controlled gas release.

Implementation Method 1

a reduced bonded connection between the layers lying on top of one another, which can be eliminated by an overpressure occurring inside the packaging container

Methodology Applied

Scientific EffectOverpressure: Pressure Increase

Implementation Method 2

at least one shielding element for deflecting at least one partial flow of the air flow passing through the ventilation area

Methodology Applied

Scientific EffectFlow deflection: Flow Separation

Data Source

PatentEP2687456B1Packaging container with ventilation function

Publication Date: 2017.03.08 NORDFOLIEN

AI summary

The container (1) has multilayer ventilation region (7) provided with inner layer (8) and outer layer (9). The ventilation region is provided with chamber and extended along specific direction of container main structure. The ventilation region is provided with inner aperture (10) and an outer aperture (11). The inner and outer apertures. The shielding element (14) is provided for deflecting air flow passing through ventilation region. The inner aperture and outer aperture are welded in ventilation region through connecting seams (12,13).