Multi-chamber tire with partitioned gussets for puncture isolation

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Solution Overview

Problem

Tires with a single chamber are prone to air leakage and loss of flexibility when punctured, making them unsuitable for high-speed running and reducing their service life.

Innovation Solution

A multi-chamber tire design with partitioned gussets that divide the chamber into isolated compartments, allowing the tire to maintain functionality and high-speed performance even after puncture, as only the affected compartment leaks while others remain inflated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single chamber is used in the flexible ring portion, then the tire structure is simple, but when punctured the entire chamber leaks and the tire cannot withstand dynamic load for high-speed running

Engineering Contradiction:
Improvechamber structureVSAvoidtire functionality after puncture
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The single chamber is divided into multiple independent isolating chambers by partitioned gussets. When one chamber is punctured, only that specific chamber leaks while other chambers remain inflated, allowing the tire to maintain structural integrity and continue supporting dynamic loads for high-speed running.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If a single chamber is used in the flexible ring portion, then the manufacturing process is simple, but the service life is reduced due to complete air leakage upon puncture

Engineering Contradiction:
Improvechamber assemblyVSAvoidtire service life
Core Design Contradiction:
Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The chamber is segmented into multiple isolating chambers using partitioned gussets. This segmentation allows the tire to maintain functionality even when individual chambers are punctured, thereby extending the service life without significantly complicating the manufacturing process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The partitioned gussets are pre-installed to create isolated chambers before the tire enters service. This beforehand preparation ensures that when puncture occurs, the isolation mechanism is already in place to prevent complete air loss, extending operational life.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Device complexity

If a single chamber is used, then the tire structure is straightforward, but the tire is prone to damage and scraping when punctured making it unusable

Engineering Contradiction:
Improveflexible ring portion structureVSAvoiddamage resistance after puncture
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

By dividing the flexible ring portion into multiple isolating chambers with partitioned gussets, the tire can withstand puncture damage locally without affecting the entire structure. The isolated chambers maintain internal pressure to prevent further damage and scraping.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The partitioned gussets provide localized reinforcement at potential puncture points. When damage occurs in one area, the adjacent isolated chambers with intact gussets provide structural support to prevent propagation of damage to the entire flexible ring portion.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10343457B2Multi-chamber tire
Publication Date: 2019.07.09 CHENGDU YOUYANG ELECTROMECHANICAL PROD DESIGN
  • US10343457B2 patent drawing
  • US10343457B2 patent drawing
  • US10343457B2 patent drawing

AI summary

A multi-chamber tire, comprising an outer layer portion and an flexible ring body in an annular fashion; the outer layer portion is arranged on the external side of the flexible ring body; the flexible ring portion is provided with chambers arranged around the flexible ring portion; the chambers are provided with a plurality of partitioned gussets; each of the partitioned gussets is arranged around the flexible ring body and extends along the axial and radial directions, and the plurality of partitioned gussets are arranged around the flexible ring body alternately, dividing the chambers into a plurality of isolating chambers isolated from each other.