Tyre Mounting Machine with Axis-Aligned Sidewall Pressing
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Solution Overview
Problem
Existing tyre mounting and demounting machines suffer from issues of versatility, robustness, reliability, and operational inconvenience due to cumbersome or improperly positioned articulated arms, which affect the precision and ease of use.
Innovation Solution
A machine with a wheel-holder unit that is movable in rotation and translation, equipped with a main arm and sidewall pressing tools that adjust vertically and horizontally to align with the wheel's axis, allowing precise engagement and operation of mounting and demounting tools, and a control console for automated or manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the articulated arm is made movable and extendable to reach the wheel, then the machine can perform mounting operations, but the structure becomes complex and less reliable
Solution Approach 1:
The patent removes the complex articulated arm structure entirely and replaces it with a fixed support structure. The sidewall pressing tool is positioned directly above the wheel holder unit without requiring any articulation or extension mechanisms, thereby eliminating mechanical complexity while maintaining the ability to perform mounting operations.
Solution Approach 2:
Instead of making the support structure movable and extendable to reach the wheel, the invention inverts the approach by making the wheel holder unit movable relative to the fixed support structure. This achieves the same functional result with significantly reduced mechanical complexity.
2Ease of operation
If the articulated arm is positioned far from the wheel holder unit, then it can operate on the tyre, but it becomes cumbersome and difficult to manage
Solution Approach 1:
The patent extracts and removes the articulated arm positioning mechanism entirely. The sidewall pressing tool is directly supported above the wheel holder unit, eliminating the need for complex articulation and extension mechanisms that made the device cumbersome and difficult to manage.
3Device complexity
If the articulated arm is fixed in position, then the structure is simpler, but it cannot properly align with wheels at different positions
Solution Approach 1:
The patent inverts the approach by keeping the support structure fixed and simple while making the wheel holder unit movable. This allows the wheel holder to be positioned and rotated to align with the wheel axis, achieving adaptability without compromising structural simplicity.
4Ease of operation
If the machine uses manual operation, then it is easier to control, but it requires excessive operator intervention and is less efficient
Solution Approach 1:
The patent implements automated control systems that enable the machine to perform mounting operations with minimal operator intervention. The control console and automated mechanisms allow the system to self-regulate the mounting process, improving productivity while maintaining ease of operation through simple interface controls.
Data Source
AI summary
A machine (M) for mounting and demounting a tyre (P) relative to a corresponding rim (C) of a vehicle wheel (R) comprises a wheel-holder unit (200) that is movable in rotation about a vertical axis of rotation (Y) and movable in translation along an axis of translation (X) towards and away from the machine (M). The machine (M) comprises a main arm (400) and a working unit (500) connected to the main arm (400) and including a first arm (501a) pivoted to the main arm (400) at a hinge point (F) and a first sidewall pressing tool (502a) which is configured to come into abutment against a sidewall of the tyre (P) of the wheel (R) mounted on the wheel-holder unit (200) and which is connected to the first arm (501a). The main arm (400) is movable by translation parallel to the horizontal axis of translation (X) towards and away from a column (101) to keep the hinge point (F) vertically aligned with the vertical axis of rotation (Y) of the wheel-holder unit (200), responsive to a movement in translation of the wheel-holder unit (200).