Automatic Tire Changer Control for Run-Flat Tire Mounting

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Solution Overview

Problem

Existing tire changers require significant manual labor for demounting and mounting operations, especially with modern tire types such as larger diameters, shorter sidewalls, and very hard sidewalls, and cannot handle run-flat tires effectively, necessitating improved automation.

Innovation Solution

An automatic tire changer with a control system that includes a base, column, tire mounting seat mechanism, and demounting and mounting apparatuses, controlled by a CPU and operated via an operation console, allowing for fully automated tire demounting and mounting processes without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual operations are used for tire demounting and mounting, then the device complexity is reduced, but the labor intensity increases and automation proportion decreases

Engineering Contradiction:
Improveautomation proportionVSAvoiddevice complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The tire changing system is divided into multiple independent functional modules: a control system with CPU, a tire mounting seat mechanism, a first demounting and mounting apparatus for upper portion, and a second demounting and mounting apparatus for lower portion. Each module can be controlled independently through the execution mechanism, allowing automated operation while maintaining manageable system complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system acts as an intermediary between the operator and the mechanical components. The CPU receives input instructions and automatically controls the execution mechanism to coordinate the tire mounting seat and demounting apparatus, eliminating the need for manual intervention while managing complexity through software control rather than complex mechanical linkages.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If fully automated control is implemented, then labor intensity is reduced, but the device complexity and control system requirements increase

Engineering Contradiction:
Improveease of operationVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control system is designed to automatically control all components without manual intervention during the tire changing process. The CPU executes pre-programmed instructions to automatically coordinate the tire mounting seat mechanism and demounting apparatus, making the system self-sufficient and extremely easy to operate while managing complexity through automated decision-making algorithms.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control system monitors the state of various components and adjusts its control signals accordingly to achieve precise automated operation. The execution mechanism receives control signals from the CPU and provides feedback on component positions and states, enabling the system to self-correct and maintain proper operation without human intervention.

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If manual control is used, then the device structure is simpler, but the precision and consistency of tire demounting and mounting operations decrease

Engineering Contradiction:
Improveoperation precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The control system replaces manual mechanical control with automated electronic control. The CPU sends precise electrical signals to control the execution mechanism, which in turn controls the position and motion of the tire mounting seat and demounting apparatus. This substitution of manual mechanical control with automated electronic control systems achieves high precision and consistency while managing complexity through software rather than mechanical precision components.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Reduces labor intensity, improves efficiency, and enhances precision in tire demounting and mounting operations, minimizing damage to rims and tires while reducing labor costs.

Implementation Method 1

a hydraulic motor configured to drive the central shaft to rotate

Methodology Applied
Scientific EffectHydraulic motor: Hydraulic Press

Implementation Method 2

the oil hydraulic cylinder is capable of driving the shaft sleeve and the central shaft to rotate around the rotation shaft in a vertical direction through extension and retraction of the power output rod

Methodology Applied
Scientific EffectHydraulic cylinder: Hydraulic Press

Data Source

PatentUS20260070379A1Automatic tire changer and control system for the same
Publication Date: 2026.03.12 SHANGHAI BALANCE AUTOMOTIVE EQUIP
  • US20260070379A1 patent drawing
  • US20260070379A1 patent drawing
  • US20260070379A1 patent drawing

AI summary

Provided is an automatic tire changer, relating to the technical field of tire repair and maintenance. The automatic tire changer includes a base configured to carry a carrier of a device; a column vertically disposed on the base; a tire mounting seat mechanism movably disposed on the base and configured to secure a rim when a tire is demounted or mounted; a first demounting and mounting apparatus movably disposed on the column and configured to demount or mount an upper portion of the tire; a second demounting and mounting apparatus movably disposed on the column and configured to demount or mount a lower portion of the tire; and a control system configured to run a program and control multiple components to run through an execution mechanism.