Tire Label Layout for Visible Communication Device Position

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Solution Overview

Problem

It is difficult to distinguish the position of a communication device embedded within a tire from outside the tire in a dark surrounding environment.

Innovation Solution

A tire with a label area on its outer surface that indicates the position of the communication device, featuring a light emission area and a non-light emission area, with the communication device positioned to not overlap with the light emission area in the tire wall thickness direction and to overlap with the non-light emission area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a communication device is embedded within the tire body, then the tire can perform communication functions, but the position of the communication device cannot be distinguished from outside the tire in dark environments

Engineering Contradiction:
Improvecommunication functionVSAvoidvisibility of communication device position
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies a light-emitting material to create a label area on the tire outer surface that emits light in dark environments. This light emission creates a visual contrast that makes the communication device position distinguishable from outside the tire, directly resolving the visibility issue while maintaining the communication function.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent introduces a label area with light-emitting material as an intermediary indicator between the embedded communication device and the external observer. This mediator allows the position of the communication device to be detected from outside the tire without requiring direct viewing of the device itself, solving the detection difficulty in dark environments.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If a light emission area is created on the tire outer surface, then the communication device position becomes visible in dark environments, but confusion may occur between label areas

Engineering Contradiction:
Improvevisibility of communication device positionVSAvoidaccuracy of position indication
Core Design Contradiction:
Difficulty of detecting and measuringVSLoss of information

Solution Approach 1:

The patent creates a label area with specific local characteristics - a light-emitting region surrounded by a non-light-emitting region. This local quality differentiation provides clear spatial boundaries and contrast, enabling precise identification of the communication device position while preventing confusion with other areas on the tire.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses contrasting light emission properties - a light-emitting area surrounded by a non-light-emitting area - to create distinct visual boundaries. This contrast mechanism ensures that the label area stands out clearly and prevents misinterpretation or confusion with other tire features, maintaining accurate position indication.

Inventive Principle:
Principle #32Color changes

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

Enables the position of the communication device to be easily identified from outside the tire in both dark and bright environments, enhancing visibility and preventing confusion between label areas.

Implementation Method 1

The label area includes a light emission area, and a non-light emission area surrounded by the light emission area

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentEP4446134B1tire
Publication Date: 2026.03.04 BRIDGESTONE CORP
  • EP4446134B1 patent drawingFigure 1
  • EP4446134B1 patent drawingFigure 2
  • EP4446134B1 patent drawingFigure 3

AI summary

A tire according to the present disclosure includes a tire body and a communication device embedded within the tire body or mounted on an inner surface of the tire body. The tire includes a label area that is located on an outer surface of the tire body and indicates the position of the communication device. The label area includes a light emission area.