Inflatable Warning Device Using Gas Injection for Compact Storage

Solution Overview

Problem

Conventional triangular warning systems for vehicles are inadequate in size, prone to breakage, and difficult to deploy promptly due to their size and material properties, leading to ineffective notification of rear drivers in emergency situations.

Innovation Solution

An inflatable warning system with a compact design, featuring a grid-based main body, an inflatable tube, gas injectors, and a rotation foot with a magnet for easy deployment and enhanced visibility, utilizing a fluorescent and reflective surface for better recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the warning triangle is made large to be visible to rear drivers, then visibility is improved, but storage space is consumed and the device becomes harder to store

Engineering Contradiction:
Core Design Contradiction:
Illumination intensityVSVolume of moving object

Solution Approach 1:

The inflatable tube is stored in a compressed state within the main body housing, nested inside the compact container. When deployed, the tube expands outward from this nested position to achieve large visibility dimensions without permanently occupying that space during storage

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The warning device transitions from a static compact form during storage to a dynamic expanded form during use. The inflatable tube changes volume and shape based on operational state, allowing the device to achieve large visibility dimensions only when needed

Inventive Principle:
Principle #15Dynamics

2Strength

If the warning triangle is made from rigid injection plastic for durability, then strength is improved, but the device becomes prone to breakage from impact and harder to deploy promptly

Engineering Contradiction:
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The warning device uses an inflatable tube made of flexible material instead of rigid injection plastic. This flexible membrane structure provides durability through its ability to absorb impact forces without breaking, while maintaining structural integrity during deployment and storage

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The device changes its physical state from a compressed inactive form to an expanded active form through gas injection. This parameter change allows the structure to transition between storage and deployment states while maintaining reliability, as the inflated state provides structural strength without the brittleness of rigid plastic

Inventive Principle:
Principle #35Parameter changes

3Volume of moving object

If the warning triangle is made foldable to reduce storage space, then storage compactness is improved, but the device still occupies significant trunk space and requires assembly

Engineering Contradiction:
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The inflatable tube is pre-positioned within the main body housing in a compressed state. The gas injector is pre-loaded with compressed gas, and the rotation foot is pre-configured to rotate outward. When deployed, these pre-positioned elements activate automatically or with minimal user action, eliminating the need for complex assembly steps

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The rotation foot is extracted from the main body housing and rotates outward to provide support. This separable, movable component is taken out from the compact storage position and deployed to its functional position, enabling easy setup while maintaining compact storage

Inventive Principle:
Principle #2Taking out (Extraction)

4Volume of moving object

If the warning triangle is made compact for easy storage, then storage convenience is improved, but the device becomes less visible to rear drivers

Engineering Contradiction:
Core Design Contradiction:
Volume of moving objectVSIllumination intensity

Solution Approach 1:

The large visibility surface of the inflatable tube is nested within the compact main body during storage. The tube is compressed and stored inside the housing, achieving small storage dimensions while maintaining the capability to expand to large visibility dimensions when deployed

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The device dynamically changes its visibility dimensions by inflating the tube from a compact compressed state to a large expanded state. This dynamic transformation allows the same device to achieve both compact storage and large visibility requirements at different operational stages

Inventive Principle:
Principle #15Dynamics

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 system provides effective and easy-to-deploy warning to rear drivers, reducing the likelihood of accidents by being more noticeable and durable, while minimizing storage space and facilitating quick setup.

Implementation Method 1

a gas injector having an injection opening which is formed on the lower storage and penetrates through the side of the tube so that the compressed gas stored in the gas container flows into the inflatable tube through the tube

Methodology Applied
Scientific EffectGas compression and expansion: Compression

Implementation Method 2

a magnet fouled on the lower side of the rotation foot so that the main body can be attached with the magnet's magnetism

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentUS11285870B2Expansion type caution device
Publication Date: 2022.03.29
  • US11285870B2 patent drawing
  • US11285870B2 patent drawing
  • US11285870B2 patent drawing

AI summary

An inflatable warning system for roads that enables the user to warn the rear driver by expanding an inflatable tube, which is a warning system. More specifically, when the driver pulls the handle of the gas injector formed on the main body, the compressed gas stored in a gas container is instantaneously injected to the inflatable tube, and the warning system expanded by the injected compressed gas stands up, thereby notifying the rear driver to recognize the warning system to prevent an accident.