Emergency Wheel Attachment With Movable Tread for Flat Tires

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Solution Overview

Problem

Existing vehicle wheel attachments fail to provide a low-wear, high-comfort solution for driving with a flat tire or in adverse conditions like ice or snow, as they often suffer from wear issues and lack effective traction and stability.

Innovation Solution

The proposed attachment features a rim with a stationary section and a movable tread section that can be clamped to the wheel, incorporating heat-conducting elements and a damping system, along with a clamping device that ensures secure fastening and easy assembly, allowing for efficient operation on various road surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing vehicle wheel attachments are used for driving with flat tire or adverse conditions, then driving capability is enabled, but wear resistance is poor and comfort is low

Engineering Contradiction:
Improvedriving capabilityVSAvoidwear resistance
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The attachment is divided into a stationary section (mounting portion) and a movable tread section, allowing differential movement and wear distribution. The stationary section remains fixed to the wheel while the tread section can move and self-adjust, reducing concentrated wear on any single component.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tread section is designed to be movable relative to the stationary section, enabling dynamic adaptation to road conditions. This mobility allows the tread to self-adjust and distribute wear more evenly, improving overall durability while maintaining driving capability.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If existing vehicle wheel attachments are used for driving with flat tire, then mobility is restored, but driving comfort is poor

Engineering Contradiction:
ImprovemobilityVSAvoiddriving comfort
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The movable tread section dynamically adapts to road irregularities and vehicle movement, absorbing shocks and vibrations that would otherwise transmit directly to the vehicle. This dynamic behavior restores mobility while significantly improving driving comfort.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The attachment design inherently provides cushioning through the movable tread section that can deflect and absorb impacts before they reach the vehicle. This prior cushioning effect mitigates the harshness of driving on imperfect surfaces.

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

3Reliability

If clamping means engage behind rim section, then secure fastening is achieved, but assembly complexity increases

Engineering Contradiction:
Improvefastening securityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The attachment is segmented into stationary and movable sections that can be assembled independently. The clamping means are integrated into the stationary section, which is first mounted to the wheel, simplifying the overall assembly process while maintaining secure fastening.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The clamping means are designed to automatically engage and secure the attachment to the wheel rim when the attachment is mounted. This self-securing mechanism reduces assembly complexity by eliminating the need for additional fastening operations or complex adjustment procedures.

Inventive Principle:
Principle #25Self-service

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 solution provides enhanced wear resistance, improved traction, and increased comfort by distributing pressure and heat effectively, ensuring reliable operation even on challenging surfaces like ice and snow, while minimizing wear and maximizing driving comfort.

Implementation Method 1

heat-conducting elements embedded in the tread body extending radially inward beyond the stationary section

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

The tread portion comprises a damping device for damping the tread in the radial direction

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentEP3898261B1Emergency wheel
Publication Date: 2024.01.31 KT PROJEKTENTWICKLUNGS GMBH
  • EP3898261B1 patent drawingFigure 1
  • EP3898261B1 patent drawingFigure 2
  • EP3898261B1 patent drawingFigure 3~5

AI summary

The invention relates to an attachment for a vehicle wheel which allows the vehicle to be driven with restricted tire functions.