Tire Changer Hinged Arms Segmentation Dynamics
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Solution Overview
Problem
Existing tire changer apparatuses have complex and delicate extensible structures that are prone to damage under high stresses, limiting their flexibility and effectiveness in handling tires of varying diameters and widths, and often require costly maintenance.
Innovation Solution
A tire changer apparatus with a base, drive unit, and frame that includes hinged arms with tools configured to rotate around parallel axes, allowing for adjustable positioning and movement to accommodate different tire sizes, featuring a control unit to manage the movement and positioning of the tools relative to the wheel, ensuring correct tilt and distance for efficient assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If extensible arms are used to accommodate varying tire sizes, then adaptability is improved, but structural strength deteriorates and the structure becomes complex and delicate
Solution Approach 1:
The apparatus divides the tool support system into multiple independent devices (first device with arm 7, second device with arm 70) that can move separately along the frame. Each arm is a discrete segment that rotates independently around its own axis (Y and Y' respectively), allowing individual positioning adjustments without compromising the structural integrity of the entire system.
Solution Approach 2:
The arms are designed to be dynamic rather than static, with the first arm (7) rotatable around axis Y and the second arm (70) rotatable around axis Y'. This dynamic capability allows the arms to adjust their positions and angles to accommodate different tire sizes while maintaining structural strength through controlled rotational movement rather than requiring fully extensible structures.
2Device complexity
If arms with fixed tilt are used, then structural simplicity is improved, but adaptability to different wheel sizes deteriorates
Solution Approach 1:
The apparatus employs dynamic arms that can rotate around vertical axes (Y and Y') rather than using arms with fixed tilt angles. The first arm (7) and second arm (70) can independently adjust their angular positions, enabling the tools to maintain correct orientation relative to tires of varying dimensions while avoiding the complexity of multiple fixed-tilt arm configurations.
Solution Approach 2:
The rotatable arms serve multiple functions: they support tools, accommodate different tire sizes, and maintain correct tool orientation. This universal design allows a single arm structure to handle various wheel dimensions without requiring separate specialized arms for each tire size, thereby balancing structural simplicity with adaptability.
3Productivity
If high pressure is applied to the tire during assembly/disassembly, then productivity is improved, but the risk of tool and apparatus damage increases
Solution Approach 1:
The dynamic arm system allows for controlled application of pressure during tire assembly and disassembly. By enabling the arms (7 and 70) to rotate and adjust their positions, the system can apply necessary high pressures to accelerate the process while maintaining control over the force application points, thereby reducing the risk of sudden tool failure or apparatus damage compared to rigid fixed-position systems.
Data Source
AI summary
A tire changer apparatus for the assembly or disassembly of tires from a rim of a wheel of a vehicle, said tire changer apparatus comprising: a base; a drive unit movable along a predetermined direction and configured to rotate, around a rotation axis, a wheel of a vehicle; a frame emerging from the base. The rotation axis of the wheel and the predetermined direction define an ideal plane of movement of the drive unit. The apparatus also comprises a first and a second device, each of which comprises: an arm hinged to the frame and configured to rotate around a respective axis parallel to the rotation axis of the wheel, a tool configured to operate on a rim and/or a tire of a wheel; the first and second devices are configured to arrange the respective tools on opposite sides with respect to said ideal plane.