Tyre Building Winding Supports for Simultaneous Multi-Element Deposition

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Solution Overview

Problem

Existing production processes struggle to simultaneously deposit two elongated elements that are different from each other on a forming drum without requiring redesign or modification of the extrusion and building lines.

Innovation Solution

A method involving the use of two winding supports to wind pairs of elongated elements that are the same as each other, followed by pairs that are different, allowing simultaneous deposition on the forming drum using existing extrusion and building lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple elongated elements of different compositions and geometries are to be simultaneously deposited on a forming drum, then production flexibility and variety are improved, but existing extrusion and building lines cannot handle this requirement without redesign or modification

Engineering Contradiction:
Improveability to deposit different elongated elementsVSAvoidredesign of extrusion and building lines
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the production system into separate functional modules: extrusion units that produce different elongated elements, winding supports that store and feed these elements, and a forming drum that receives them. This segmentation allows each module to be independently configured for different element types without requiring complete system redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The winding supports are designed to universally handle multiple types of elongated elements through standardized feeding mechanisms. The forming drum is configured with multiple receiving positions that can accommodate different element geometries and compositions, enabling a single building line to produce varied tire structures without modification.

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

2Adaptability or versatility

If pairs of elongated elements are wound on separate winding supports at different axial positions, then simultaneous deposition of different element types is enabled, but the winding and unwinding process becomes more complex

Engineering Contradiction:
Improvesimultaneous deposition of different element typesVSAvoidwinding and unwinding process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent utilizes the axial dimension of the winding supports to differentiate between different types of elongated elements. By positioning elements at different axial locations rather than mixing them radially or circumferentially, the system achieves multi-type handling while maintaining a relatively simple winding and unwinding mechanism that operates along the axial direction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Manufacturing precision

If service fabrics are used to maintain structural consistency and prevent sticking during winding, then element quality is improved, but the process requires additional materials and handling steps

Engineering Contradiction:
Improvestructural consistency of elongated elementsVSAvoidadditional handling steps
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Service fabrics act as intermediary materials between the elongated elements and the winding supports. These fabrics prevent direct contact between elements of different compositions, eliminating sticking issues while maintaining structural integrity. The fabrics are fed through the winding and unwinding processes as intermediate carriers, simplifying element handling without requiring complex mechanical intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12629907B2Plant for building tyres of vehicle wheels and method for providing elongated elements to be used in a process for building tyres
Publication Date: 2026.05.19 PIRELLI TYRE SPA
  • US12629907B2 patent drawing
  • US12629907B2 patent drawing
  • US12629907B2 patent drawing

AI summary

A method for arranging elongated elements in a process for building tyres for vehicle wheels, including: simultaneously winding a first elongated element and a second elongated element respectively on a first winding support in a first axial position and on a second winding support in a first axial position; simultaneously winding a third elongated element and a fourth elongated element respectively on the first winding support in a second axial position different from the first axial position and on the second winding support in a second axial position different from the first axial position, in which the elongated elements of the second type are the same as each other and different from the elongated elements of the first type.