Tyre Changer Operating Head Merging Tools to Reduce Dimensions
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Solution Overview
Problem
Current tyre changer machines are complex, costly, and difficult to use, with limited operator visibility and increased risk of error due to numerous movement apparatuses and complex structures, which hinder efficient tyre fitting and removal processes.
Innovation Solution
A tyre changer machine with a simplified design featuring a wheel-holder unit and operating heads with integrated tools that can be selectively positioned using a rotating mechanism, reducing the number of required movements and increasing reliability by allowing simultaneous operation of tools on the upper and lower beads, thus minimizing the machine's dimensions and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If numerous movement apparatuses and complex structures are used in tyre changer machines, then the machine can perform all required operating steps, but the machine dimensions increase and operator visibility is limited
Solution Approach 1:
The patent combines multiple operating units (bead breaker, removal tool, fitting tool) into a single integrated operating head that rotates to position different tools. This merging of functions into one compact unit reduces the overall machine footprint while maintaining full operating capability across all tyre changing steps.
Solution Approach 2:
The rotating operating head serves multiple functions by sequentially positioning different tools (bead breaker disc, removal tool, fitting tool) in the working position. This multi-functional design eliminates the need for separate dedicated apparatuses for each operation, thereby reducing machine dimensions while preserving versatility.
2Adaptability or versatility
If numerous movement apparatuses are used in tyre changer machines, then all operating steps can be performed, but the structure becomes complex and production and maintenance costs increase
Solution Approach 1:
Multiple independent movement apparatuses are merged into a single rotating operating head mechanism. Instead of having separate actuators and guides for each tool, one rotational mechanism positions all tools, significantly simplifying the overall structure while maintaining the ability to perform bead breaking, removal, and fitting operations.
Solution Approach 2:
The operating head is designed as a universal positioning mechanism that can accommodate and activate different tools through rotation. This multi-functional approach replaces multiple specialized movement systems with a single versatile mechanism, reducing structural complexity and associated costs.
3Adaptability or versatility
If numerous movement apparatuses are used in tyre changer machines, then all operating steps can be performed, but the machine becomes more difficult to use and reliability decreases
Solution Approach 1:
By merging multiple tool positioning mechanisms into one rotating operating head, the control system becomes simpler and more intuitive. The operator interacts with a single rotational mechanism rather than coordinating multiple independent apparatuses, improving ease of operation and reducing the likelihood of operational errors.
Solution Approach 2:
The universal operating head provides a consistent, standardized interface for tool selection and activation. This uniformity in operation across different tools (bead breaker, removal, fitting) simplifies the user experience and enhances reliability by reducing the complexity of operational procedures.
4Adaptability or versatility
If separate tools are used for upper and lower beads, then complete tyre operation is achieved, but the number of movement apparatuses increases
Solution Approach 1:
Tools for operating on both upper and lower beads are merged into a single rotating operating head. By combining these tool sets and utilizing the rotation capability, the machine achieves complete tyre operation (both beads) while minimizing the number of independent movement apparatuses to just one rotating mechanism.
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
The solution enhances the reliability and simplicity of the tyre changing process, reduces operator errors, and decreases production and maintenance costs by providing a more compact and user-friendly machine with improved visibility for the operator.
Implementation Method 1
the bead breaker tool exerts a pressure on the side wall of the tyre close to the bead causing detachment from the edge of the rim
Implementation Method 2
the rubber of the tyre bead overheats and the bead adheres to the rim due to a rubber vulcanization phenomena
Data Source
AI summary
A machine (1) for fitting and removing a tire (2) from a corresponding rim (3) of a wheel (4) of a vehicle, comprises: a rotating wheel-holder unit (6); a column (8); an upper arm (15) and a lower arm (23) slidably coupled to the column (8); an upper operating head (16); a lower operating head (24), rotating about a third axis of rotation (C) and equipped with a lower fitting tool (33), elongate in a direction for being operatively inserted between a lower bead of the tire (2) and an upper edge of the rim (3) and angularly spaced from the lower bead breaker tool (32) by a predetermined angle, so that the tools are selectively and alternatively positionable in an operating configuration.