Sensor-Guided Pivoting Tyre Tool for Precise Bead Separation
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Solution Overview
Problem
Current tyre-removal apparatuses lack reliability, safety, precision, and ease of use, often resulting in incomplete bead separation and potential damage to tyres, rims, and tools during the bead breaking and demounting processes.
Innovation Solution
A tyre-removal apparatus with a pivoting tool mounted on a support arm, equipped with sensors and actuators that allow precise control of the tool's position and movement, enabling automatic pivoting based on contact parameters with the wheel, ensuring correct bead breaking and demounting operations without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual positioning of the bead breaker tool is used, then the device complexity is reduced, but the manufacturing precision and reliability of bead separation deteriorate
Solution Approach 1:
The bead breaker tool automatically positions itself by pivoting about a pivot pin when brought into contact with the rotating tyre, eliminating the need for complex manual positioning mechanisms while achieving precise bead separation
Solution Approach 2:
The tool transitions from a static position to a dynamic pivoting motion during operation, allowing automatic adjustment to the correct working position through the pivoting mechanism about the pivot pin
2Productivity
If the bead breaker tool is advanced towards the wheel axis during rotation, then the bead breaking effectiveness is improved, but the reliability deteriorates due to risk of damage to tyre, rim or tool
Solution Approach 1:
Sensors detect the position and contact forces between the bead breaker tool and the tyre/rim, providing feedback to the control system which automatically adjusts the tool advancement to prevent damage while maintaining effective bead breaking
Solution Approach 2:
Manual control of tool advancement is replaced with an automated control system that uses sensors and actuators to precisely control the pivoting and advancement motions, eliminating human error and improving safety
3Ease of operation
If automated pivoting control with sensors and actuators is implemented, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The pivot pin mechanism serves multiple functions: it acts as both the rotation axis for the bead breaker disc and the pivot point for automatic tool positioning, while also serving as a reference point for sensor measurements
Data Source
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AI summary
Tyre-removal apparatus comprising a base having a support for receiving and rotating the wheel. The tyre-removal apparatus further comprising a frame which is joined to the base and which has an upright with a longitudinal axis substantially parallel to an axis of rotation of the wheel. A support arm is associated with the upright and is movable in a direction substantially parallel to the axis of rotation of the wheel. A tool for operating on the wheel is mounted pivoting on the support arm. A sensor, associated with the tool, is able to detect at least one parameter representing contact between the tool and the wheel, said sensor being operationally connected to a control unit able to control an actuator, associated with the support arm, so as to pivot the tool between a first withdrawn position with respect to the axis of rotation of the wheel and a second advanced position with respect to the axis of rotation of the wheel, depending on the at least one parameter representing the contact between the tool and the wheel.