Shockproof Packaging Bag with Nested Air Columns

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Solution Overview

Problem

Existing packaging materials for 3C products during transportation are not adaptable to varying sizes, leading to increased costs and insufficient shockproof, cushioning, and protection, as they require multiple sizes to accommodate diverse products.

Innovation Solution

A packaging bag design featuring a bottom wall with air columns, shielding portions with heat-sealed nesting spaces, and a limiting film with adjustable accommodation and limiting spaces, allowing flexible placement of objects based on size, and providing multiple cushioning effects through inflatable air columns and heat-sealed structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If packaging materials are designed for specific product sizes, then shockproof and cushioning protection is improved, but adaptability to different product sizes deteriorates

Engineering Contradiction:
Improveshockproof protectionVSAvoidadaptability to different product sizes
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The packaging bag is divided into multiple functional regions: a bottom wall with first nesting space, a middle wall with second nesting space, and a cover body with third nesting space. Each region can independently accommodate products of different sizes, allowing the packaging to adapt to various product dimensions while maintaining shockproof protection through distributed air column structures in each region.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The packaging structure employs nested spaces where the first nesting space in the bottom wall, second nesting space in the middle wall, and third nesting space in the cover body are stacked vertically. These nested spaces allow products of different sizes to be accommodated within the same packaging bag by selecting appropriate combinations of spaces, thereby achieving both adaptability and reliable shockproof protection.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If multiple sizes of packaging materials are used to accommodate diverse products, then adaptability is improved, but cost increases

Engineering Contradiction:
Improveaccommodation of diverse product sizesVSAvoidpackaging material cost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The packaging bag is designed as a universal structure with multiple nesting spaces that can accommodate products of various sizes within a single bag type. The bottom wall, middle wall, and cover body each contain nesting spaces that can be selectively used based on product size requirements, eliminating the need for multiple different packaging bag sizes and reducing material costs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The packaging structure allows dynamic selection of nesting spaces based on product dimensions. Users can flexibly combine the first, second, and third nesting spaces according to the size of the product being packaged, enabling a single packaging bag design to serve multiple product size categories without requiring inventory of multiple bag sizes.

Inventive Principle:
Principle #15Dynamics

3Reliability

If packaging materials provide comprehensive shockproof and cushioning protection, then product safety is improved, but device complexity increases

Engineering Contradiction:
Improveproduct protectionVSAvoidpackaging structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The packaging bag utilizes flexible air column structures within the bottom wall, middle wall, and cover body to provide shockproof and cushioning protection. These air-filled nesting spaces act as flexible protective elements that absorb impact forces while maintaining a relatively simple overall bag structure, avoiding the need for complex rigid protective mechanisms.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The packaging design merges the shockproof and cushioning functions into the structural walls themselves. The bottom wall, middle wall, and cover body each integrate nesting spaces with air columns that simultaneously provide both shock absorption and cushioning protection, consolidating multiple protective functions into a unified structure rather than adding separate complex protective components.

Inventive Principle:
Principle #5Merging (Combining)

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 cost reduction by accommodating objects of different sizes and provides effective shockproof and protection through customizable space selection and enhanced cushioning, addressing the limitations of existing packaging materials.

Implementation Method 1

The bottom wall includes a plurality of bottom air columns. The first shielding portion includes a plurality of first shielding air columns. The cover body includes a plurality of cover air columns.

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

a first nesting space is formed between the first shielding portion and the bottom wall. a second nesting space is formed between the second shielding portion and the bottom wall.

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

Both sides in a lateral direction of the first shielding portion are adhered to the surface of the bottom wall by means of heat sealing. Both sides in the lateral direction of the second shielding portion are adhered to the surface of the bottom wall by means of heat sealing.

Methodology Applied
Scientific EffectHeat sealing: Heating

Implementation Method 4

The first shielding portion is folded above a surface of the bottom wall by a first folding line. The second shielding portion is folded above the surface of the bottom wall by a second folding line.

Methodology Applied
Scientific EffectFolding: Folding

Data Source

PatentEP3611115B1Packaging bag for shockproof and combination thereof
Publication Date: 2020.12.30 KUNSHAN AIRBAG PACKING CORP
  • EP3611115B1 patent drawingFigure 1
  • EP3611115B1 patent drawingFigure 2
  • EP3611115B1 patent drawingFigure 3

AI summary

A packaging bag for shockproof (1) includes a bottom wall (11), a shielding portion (16), a limiting film (14) and a cover body (141). Both sides of the shielding portion (16) are adhered to the surface of the bottom wall (11) by heat sealing, and a nesting space (S) is formed between the shielding portion (16) and the bottom wall (11). The limiting film (14) is stacked above the bottom wall (11) and includes a body (141) and a reversed portion (142). An accommodation space (Rl) is formed between a bottom surface of the body (141), the surface of the bottom wall (11) and the outer longitudinal heat sealing lines (H1), and a limiting space (R2) is formed between the top surface of the body (141), an inner side of the reversed portion (142) and the inner longitudinal heat sealing line. The cover body (141) includes cover air columns (151) located on an upper side of the bottom wall (11).