Inflatable Protrusion Airbag Structure for 2D-to-3D Forming
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Solution Overview
Problem
Conventional wearable airbag structures are difficult to fabricate in 3D, require manual sewing, leading to increased manufacturing time and cost, and result in inconsistent quality due to operator variability, with 2D to 3D conversion complicating design and material usage.
Innovation Solution
An airbag structure with protrusions that expand from a 2D shape upon fluid injection, allowing the body to bend into a 3D configuration without prior shaping, eliminating the need for manual sewing and reducing material waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 3D airbag structure is fabricated before fluid injection, then the airbag can provide protection, but manual sewing is required resulting in increased manufacturing time and cost
Solution Approach 1:
The airbag is designed in a 2D collapsed state with pre-formed protrusions that will automatically transform into a 3D protective shape upon fluid injection, eliminating the need for pre-sewing operations while ensuring proper structural formation at the moment of deployment
Solution Approach 2:
The invention transitions from conventional 3D pre-formed structures to a 2D collapsed configuration with geometric protrusions that utilize dimensional transformation during inflation, allowing the structure to self-organize into the required 3D protective form through fluid pressure
2Reliability
If conventional 3D airbag structure is fabricated before fluid injection, then the airbag can provide protection, but manual sewing is required resulting in increased manufacturing cost
Solution Approach 1:
The airbag is designed in a 2D collapsed state with pre-formed protrusions that will automatically transform into a 3D protective shape upon fluid injection, eliminating the need for pre-sewing operations while ensuring proper structural formation at the moment of deployment
Solution Approach 2:
The protrusions are designed to automatically form the 3D protective structure through self-organization when fluid is injected, eliminating the need for external manual sewing operations and reducing labor costs
3Reliability
If conventional 3D airbag structure is designed, then the airbag can provide protection, but it is difficult to fold and store
Solution Approach 1:
The invention transitions from conventional 3D pre-formed structures to a 2D collapsed configuration with geometric protrusions that utilize dimensional transformation during inflation, allowing the structure to self-organize into the required 3D protective form through fluid pressure
Solution Approach 2:
The airbag structure transitions dynamically from a 2D collapsed state for storage to a 3D expanded state for protection, with the protrusions providing structural guidance during this transformation process
4Ease of manufacture
If conventional 2D drawing is created from 3D shape, then the airbag can be manufactured, but lots of leftover spaces result in large material consumption
Solution Approach 1:
The invention transitions from conventional 3D pre-formed structures to a 2D collapsed configuration with geometric protrusions that utilize dimensional transformation during inflation, allowing the structure to self-organize into the required 3D protective form through fluid pressure
Solution Approach 2:
Instead of creating a 2D drawing from a 3D shape and accepting leftover spaces, the invention inverts the approach by designing 2D protrusions that transform into a 3D structure, utilizing material more efficiently without unnecessary leftover spaces
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
This design reduces manufacturing time and cost, ensures consistent quality, and simplifies the design process by maintaining a 2D shape before inflation, minimizing material consumption and eliminating the need for complex 2D to 3D conversions.
Implementation Method 1
When the fluid is injected into the protrusion, the side of the body where the protrusion is formed reduces in length
Implementation Method 2
When the fluid is injected into the protrusion, the body bends in a direction in which the protrusion is formed
Data Source
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AI summary
The present disclosure relates to an airbag structure, and the airbag structure according to the present disclosure includes a body (100) into which a fluid is injected, wherein a plurality of predetermined points (A) spaced apart from each other is arranged on a side along a lengthwise direction, and a protrusion (200) into which the fluid is injected from the body (100), the protrusion (200) extending from the two adjacent predetermined points (A) in a direction facing away from the body (100), wherein the protrusion (200) has a smaller width of a farthest end from the body (100) than a width of an opposite end connected to the body (100).