Layered Tire Repair Patch Sizing for Reliable Damage Matching

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Solution Overview

Problem

Conventional repair patches for vehicle tires require a large number of different dimensions to be manufactured and stocked, leading to complex production processes and user complexity due to extensive damage tables, resulting in increased effort and reduced reliability.

Innovation Solution

A repair patch with adjustable external dimensions and intermediate layers, where the number and size of layers are determined by a dimension quotient based on the damaged area, simplifying production and application by reducing the number of required semi-finished products and streamlining damage tables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large number of repair patches with different dimensions are manufactured and kept in stock, then reliable repair for all tire damage sizes is ensured, but production complexity and inventory requirements increase significantly

Engineering Contradiction:
Improverepair reliabilityVSAvoidproduction complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single repair patch that can serve multiple damage sizes through adjustable intermediate layers. The patch can be configured with different numbers and dimensions of intermediate layers to match various damage areas, allowing one patch design to fulfill multiple repair functions that previously required many different patch types.

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

Solution Approach 2:

The patent applies segmentation by dividing the repair patch into multiple intermediate layers that can be selectively removed or adjusted. This segmentation allows the patch to be adapted to different damage sizes by configuring the number and dimensions of intermediate layers, eliminating the need to manufacture and stock many different complete patch types.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a large number of different semi-finished products are kept for production, then all damage scenarios can be covered, but manufacturing effort and time increase

Engineering Contradiction:
Improvedamage coverageVSAvoidmanufacturing efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the patch configuration adjustable rather than fixed. The number and dimensions of intermediate layers can be dynamically adapted to match the specific damage size, allowing a single production line to produce patches for various damage scenarios without requiring multiple dedicated production lines for different patch types.

Inventive Principle:
Principle #15Dynamics

3Reliability

If complex damage tables with many patch types are used, then all damage areas can be matched, but user complexity and selection difficulty increase

Engineering Contradiction:
Improverepair matching accuracyVSAvoidpatch selection ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies parameter changes by using a dimension quotient (ratio between patch external dimensions and damaged area dimensions) as the key selection criterion. Instead of navigating complex tables with many patch types, users only need to calculate this simple ratio and select the corresponding patch configuration, significantly simplifying the selection process while maintaining accurate matching.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3074211B1Repair patch
Publication Date: 2023.08.30 REMA TIP TOP AG
  • EP3074211B1 patent drawingFigure 1
  • EP3074211B1 patent drawingFigure 2

AI summary

The invention relates to a repair patch for an elastomer material, in particular for a vehicle tire, to the use of the repair patch, and to a method for repairing a vehicle tire. The repair patch has a cover layer 10, a connection layer 30 to be placed on a damaged area 60 of the elastomer component 40, and at least one intermediate layer 20 which is arranged between the cover layer and the connection layer. The repair patch 1 has outer dimensions such that a dimension quotient which is formed at least by means of at least one size parameter of the damaged area 60 lies within a specified value range, and the number of intermediate layers 20 depends on the at least one size parameter of the damaged area 60.