Spring Antenna Integration in Tire Rubber

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Solution Overview

Problem

Existing tire manufacturing methods fail to adequately protect electronic components with spring antennas, such as RFID tags, from damage during tire deformation, due to insufficient unity between the rubber and the antenna.

Innovation Solution

A manufacturing method that involves arranging rubber inside the spring antenna of electronic components, interposing them with rubber sheets, and setting these components within the tire, using rubber sheets with a higher modulus than the side-wall rubber to ensure proper integration and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a coil-like spring antenna is used to reduce stress during tire deformation, then the antenna can follow tire deformation better, but the unity between the rubber sheet and spring antenna is insufficient causing the antenna to detach or be damaged

Engineering Contradiction:

Improveantenna durabilityVSAvoidunity between rubber and antenna

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent merges the spring antenna with the rubber sheet by arranging rubber inside the spring antenna structure. This integration ensures that the antenna and rubber move together as a unified structure, preventing detachment while maintaining the antenna's flexibility to follow tire deformation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent applies the nesting principle by placing rubber material inside the spring antenna structure. The rubber is nested within the antenna coils, creating a composite structure where the antenna is embedded in the rubber matrix, ensuring they move together during tire deformation.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If rubber sheets with higher modulus than side-wall rubber are used to improve integration, then the electronic component is better protected, but the side-wall rubber may experience excessive stress

Engineering Contradiction:

Improveelectronic component protectionVSAvoidstress on side-wall rubber

Core Design Contradiction:

ReliabilityVSStress or pressure

Solution Approach 1:

The patent applies local quality by using rubber sheets with higher modulus specifically at the electronic component embedding location, while the side-wall rubber maintains its original lower modulus. This localized reinforcement protects the electronic component without subjecting the entire side-wall rubber to excessive stress.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent segments the rubber structure into two functional zones: a reinforced zone with higher modulus rubber sheets surrounding the electronic component for protection, and a flexible zone with lower modulus side-wall rubber for stress absorption during deformation.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11052622B2Tire manufacturing method

Publication Date: 2021.07.06 TOYO TIRE CORP

AI summary

A tire manufacturing method includes: a step of arranging rubber inside a spring antenna of an electronic component having a communication function, a step of interposing by rubber sheets the electronic component having the spring antenna into which rubber was arranged, and a setting step of arranging the electronic component interposed by rubber sheets in a tire.