Tire Noise Element Application Avoiding Service Areas

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Solution Overview

Problem

Existing methods for automatically applying noise-reducing elements to vehicle tires with service areas, such as those for electronic devices, risk accidental deposition on these areas, preventing subsequent device application.

Innovation Solution

A process and apparatus that determine the precise circumferential position of target areas on the tire's radially inner surface based on the position and dimension of service areas, ensuring noise-reducing elements are applied in non-overlapping areas using a detection device and control unit to guide the application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If automatic application of noise-reducing elements is implemented, then productivity is improved, but risk of accidental deposition on service areas increases

Engineering Contradiction:
Improvemanufacturing productivityVSAvoidplacement accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary detection of service areas on the tire using an optical detection device before the noise-reducing elements are applied. The control unit stores the detected service area positions and uses this information to guide the application process, preventing accidental deposition on service areas while maintaining automatic high-speed application

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses optical detection to identify service areas, feeds this information to the control unit, which then adjusts the application process in real-time. The control unit compares the detected service area positions with the intended application positions and prevents deposition on service areas, creating a closed-loop feedback system that ensures accurate placement

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If service areas are present on the tire, then adaptability is improved, but manufacturing precision deteriorates due to overlapping risks

Engineering Contradiction:
Improvetire configuration adaptabilityVSAvoidelement placement precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system dynamically adapts to different tire configurations by detecting service areas in real-time and adjusting the application process accordingly. The control unit calculates safe application zones based on detected service area positions, allowing the system to handle various tire configurations (with or without service areas, different service area positions) while maintaining precise element placement

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system applies different treatment to different areas of the tire: service areas are identified and excluded from application, while non-service areas are designated as target areas for noise-reducing element deposition. This local differentiation ensures precise placement on appropriate areas while preserving service area functionality

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11701850B2Apparatus for applying noise-reducing elements to a tyre for vehicle wheels
Publication Date: 2023.07.18 PIRELLI TYRE SPA
  • US11701850B2 patent drawing
  • US11701850B2 patent drawing
  • US11701850B2 patent drawing

AI summary

Apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and a circumferential dimension. The apparatus determines the position in circumferential direction of the service area, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.