Synchronized Tire Changer Arms for Variable Wheel Sizes
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Solution Overview
Problem
Existing tire changer apparatuses are cumbersome, costly to produce, and lack flexibility in handling tires of varying diameters and widths, while also posing a risk of damaging tires or tools during mounting and dismounting operations.
Innovation Solution
A tire changer apparatus with a simple and compact structure, featuring a base, a wheel-holder, and a frame with extensible arms and synchronized movement via a transmission system, allowing for efficient mounting and dismounting of tires across a range of sizes without damaging the tire or tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known tire changer apparatuses are used, then tire mounting and dismounting operations can be performed, but the apparatus structure becomes complex and production costs increase
Solution Approach 1:
The apparatus is divided into separate functional modules: a wheel holder for securing the wheel, extensible arms for positioning tools, and synchronized movement mechanisms for coordinated operation. This segmentation allows each component to perform its specific function independently, reducing overall structural complexity while maintaining operational reliability
Solution Approach 2:
The extensible arms and synchronized movement system serve multiple functions: they position tools for both mounting and dismounting operations, accommodate different tire sizes through adjustable reach, and coordinate bead breaker and mount/demount tool movements. This multi-functionality reduces the need for separate dedicated mechanisms for each operation
2Reliability
If known tire changer apparatuses are used, then tire operations can be performed, but production costs increase
Solution Approach 1:
The apparatus combines the wheel holder, extensible arms, and synchronized movement mechanisms into an integrated structure that shares common components and mounting points. This merging reduces the total number of separate parts that need to be manufactured and assembled, thereby lowering production costs while maintaining the required operational capability
Solution Approach 2:
The extensible arms can adjust their reach and position parameters to accommodate different tire diameters and widths. This adjustability allows a single apparatus design to handle multiple tire sizes without requiring multiple specialized tools, reducing overall production costs through standardization
3Reliability
If known tire changer apparatuses are used, then tire mounting and dismounting can be performed, but flexibility in handling different tire sizes is reduced
Solution Approach 1:
The extensible arms incorporate adjustable mechanisms that allow dynamic repositioning and resizing during operation. The arms can extend or retract to accommodate different tire diameters and can be positioned at various angles to suit different tire widths, providing the adaptability needed for handling a wide range of tire sizes while maintaining operational reliability
4Productivity
If known tire changer apparatuses are used, then tire operations can be performed, but the risk of damaging tires or tools increases
Solution Approach 1:
The synchronized movement system incorporates feedback mechanisms that monitor the position and movement of the extensible arms and tools. This feedback allows the control system to detect and respond to abnormal conditions, such as excessive force or misalignment, thereby preventing damage to tires or tools while maintaining operational productivity
Data Source
AI summary
A tire changer apparatus includes: a base, a wheel-holder configured to rotate a wheel around a rotation axis, a first and second column emerging from the base, a first device having an extensible arm carrying a tool, a second device having a respective extensible arm carrying a tool opposite the tool of the first device with respect to an ideal middle plane of the apparatus. The tire changer apparatus further includes: a first and a second bar respectively connecting the arms of the first and second devices, a transmission which connects the first and the second bar to synchronize the movement of the arms of the first and second devices.