Axle-Mounted Tire Shield for Blowout Shrapnel Containment

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Solution Overview

Problem

Tire blowouts can cause severe damage to vehicle bodies due to the rapid expulsion of air and resulting shrapnel, leading to accidents and costly repairs.

Innovation Solution

A tire containment device (TCD) is securely mounted to a vehicle's axle, featuring an axle bracket and a tire fender with a continuous containment cavity that intercepts shrapnel from a blowout before it can damage the vehicle body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a tire blowout occurs, then the tire structure fails and compressed air escapes rapidly, but shrapnel is expelled causing damage to the vehicle body

Engineering Contradiction:
Improveshrapnel damage to vehicle bodyVSAvoidtire structural integrity
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

A containment shield is introduced as an intermediary component between the tire and the vehicle body. The shield intercepts shrapnel and redirectors it away from the vehicle body, preventing direct impact damage while allowing the tire to fail naturally without compromising the vehicle structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The containment system is divided into separate functional components: a containment shield for intercepting shrapnel, a mounting bracket for secure attachment to the axle, and reinforcement elements. This segmentation allows each component to be optimized for its specific function and facilitates easy installation and maintenance.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If a containment device is added to protect against shrapnel, then vehicle body damage is reduced, but device complexity increases

Engineering Contradiction:
Improvevehicle body damageVSAvoidcontainment device structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The containment shield serves multiple functions simultaneously: it acts as a barrier to intercept shrapnel, provides structural reinforcement to the tire assembly, and redirects debris away from the vehicle body. The mounting bracket also serves dual purposes by securing the shield while reinforcing the axle mounting points.

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

Solution Approach 2:

The containment shield is constructed from a thin yet durable material that provides effective shrapnel interception without adding excessive weight or complexity. The shield's design allows it to flex and deform upon impact while maintaining its protective function, eliminating the need for heavy rigid structures.

Inventive Principle:
Principle #30Flexible shells and thin films

3Object-affected harmful factors

If the containment cavity covers the upper third of the tire diameter, then shrapnel interception is improved, but the device occupies more space

Engineering Contradiction:
Improveshrapnel containmentVSAvoidcontainment device footprint
Core Design Contradiction:
Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The containment shield covers approximately the upper third of the tire diameter, which is sufficient to intercept the majority of shrapnel trajectories during a blowout. This partial coverage approach provides effective protection while minimizing the space occupied and avoiding unnecessary material usage beyond what is required for safety.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12202550B2Axle mounted tire shrapnel containment shield
Publication Date: 2025.01.21 GRANT DEREK
  • US12202550B2 patent drawing
  • US12202550B2 patent drawing
  • US12202550B2 patent drawing

AI summary

Apparatus and associated methods relate to a tire containment device securely mounted to an axle of a vehicle to contain shrapnel caused by a tire blowout. In an illustrative example, the tire containment device may include an axle bracket and a tire fender. The axle bracket, for example, may be mounted to an axle of the vehicle. The tire fender may, for example, have a substantially continuous containment cavity. In some examples, when the tire fender is coupled to a vehicle axle by the axle bracket, the containment cavity may extend over at least a top and an exterior face of an upper third of a diameter of a tire. For example, the containment cavity may substantially intercept shrapnel from failure of the tire before it reaches a body of the vehicle. Various embodiments may advantageously reduce damage to a body of the vehicle during a tire blowout.