Multi-Chamber Tire Assembly with Spacers for Puncture Stability

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Solution Overview

Problem

Conventional single-chamber pneumatic tires are prone to deflation, deformation, and increased risk of vehicle control loss due to punctures, and dual-chamber systems face issues with internal damage and uneven tire shape when one chamber deflates, leading to safety concerns and reduced lifespan.

Innovation Solution

A multi-chamber tire assembly with separate air chambers defined by interior walls and spacers, maintaining spacing between sidewalls and interior walls, which allows for independent inflation and reduces deformation, maintaining vehicle height and stability even if one chamber is punctured.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single-chamber pneumatic tire is used, then the tire structure is simple and easy to manufacture, but the tire is highly susceptible to deflation and deformation when punctured

Engineering Contradiction:
Improvetire structure simplicityVSAvoidtire puncture resistance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The tire is divided into multiple independent air chambers separated by interior walls, so that a puncture in one chamber does not affect the other chambers. This segmentation allows the tire to maintain structural integrity and continue functioning even when one chamber is compromised.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a dual-chamber system with concentric arrangement is used, then the tire provides some limited control and stability after puncture, but the deflating outer tire may damage the inner tire and cause significant height reduction

Engineering Contradiction:
Improvetire stability after punctureVSAvoidtire height maintenance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The tire is divided into multiple independent air chambers separated by interior walls, so that a puncture in one chamber does not affect the other chambers. This segmentation allows the tire to maintain structural integrity and continue functioning even when one chamber is compromised.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The air chambers are arranged side-by-side in a planar configuration rather than concentrically, maintaining the tire's external height and overall shape even when one chamber deflates. This dimensional arrangement prevents the height reduction problem associated with concentric dual-chamber systems.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Shape

If a side-by-side multi chamber tire is used, then the vertical elevation is supposed to remain unchanged, but the tire undergoes significant lateral and longitudinal deformation when one chamber deflates

Engineering Contradiction:
Improvetire vertical elevationVSAvoidtire lateral deformation
Core Design Contradiction:
ShapeVSStability of the object's composition

Solution Approach 1:

The tire structure incorporates localized reinforcement elements such as spacers and support ribs positioned strategically to prevent lateral and longitudinal deformation of adjacent chambers when one chamber deflates. This local reinforcement maintains the overall tire composition stability.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The tire is divided into multiple independent air chambers separated by interior walls, so that a puncture in one chamber does not affect the other chambers. This segmentation allows the tire to maintain structural integrity and continue functioning even when one chamber is compromised.

Inventive Principle:
Principle #1Segmentation

4Reliability

If a multi-chamber tire assembly is used, then the tire prevents sudden deflation and maintains stability, but the device complexity increases with multiple interior walls and spacers

Engineering Contradiction:
Improvetire deflation preventionVSAvoidtire structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The tire is divided into multiple independent air chambers separated by interior walls, so that a puncture in one chamber does not affect the other chambers. This segmentation allows the tire to maintain structural integrity and continue functioning even when one chamber is compromised.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces spacers as intermediary elements that maintain the spacing between interior walls and sidewalls, preventing deformation and simplifying the overall structure by providing a straightforward geometric solution rather than complex curved surfaces.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8656971B2Wheel and multi chamber tire assembly
Publication Date: 2014.02.25 VARGAS ELADIO A
  • US8656971B2 patent drawing
  • US8656971B2 patent drawing
  • US8656971B2 patent drawing

AI summary

A tire assembly includes a tire having an annular tread between and connected to outer edges of opposed first and second sidewalls. The first and second sidewalls terminate at radially inner edges defining first and second bead sections, respectively. The tire also has a first interior wall having one edge coupled to the tread and an opposite free edge. The first interior wall is positioned between and generally parallel to and spaced from the first and second sidewalls. A first annular spacer is positionable adjacent the first bead section between the first sidewall and the first interior wall on one side of the first interior wall. A second annular spacer is positionable on the opposite side of the first interior wall. The first and second annular spacers are configured to generally maintain a spacing of the first and second sidewalls and the first interior wall relative to one another.