Tire Holding Device Sidewall Support for Rim Removal Stability
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Solution Overview
Problem
In existing tire test systems, when tires are removed from upper and lower rims, they often bound and move horizontally, leading to issues with conveyance and post-treatment positioning.
Innovation Solution
A tire holding device with upper and lower rims, support mechanisms, and a controller that clamps the tire using upper and lower supports to stabilize it during removal, preventing bounding and horizontal movement by vertically moving the supports relative to the rims.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tire is removed from the upper rim and lower rim by vertically moving the rims without support mechanisms, then the tire removal process is simple, but the tire bounds and moves horizontally causing conveyance problems
Solution Approach 1:
The patent introduces upper and lower support mechanisms as intermediary devices between the tire and the rim removal process. These supports contact the tire sidewalls and provide horizontal stabilization during vertical rim movement, preventing the tire from bounding while allowing simple vertical extraction
Solution Approach 2:
The patent adds a horizontal support dimension to the otherwise vertical rim removal process. By introducing supports that contact the tire sidewalls horizontally while the rims move vertically, the system stabilizes the tire in the horizontal plane without complicating the vertical extraction motion
2Reliability
If support mechanisms are added to prevent tire bounding during removal, then tire conveyance stability is improved, but the device complexity increases
Solution Approach 1:
The holding device is segmented into distinct functional modules: upper rim, lower rim, upper support, and lower support. Each component has a specific function (rim provides vertical extraction, support provides horizontal stabilization), allowing the system to achieve reliable tire removal without requiring a monolithic complex structure
Solution Approach 2:
Instead of trying to constrain the tire horizontally while removing the rims vertically (which would require complex horizontal constraint mechanisms), the patent inverts the approach by allowing free horizontal movement and using supports to actively prevent bounding during the vertical extraction process
Data Source
AI summary
In a tire removal processing, a clamping step and a tire removing step are executed. In the clamping step, a tire is clamped by an upper support and a lower support by bringing the lower support into contact with a lower side wall of the tire in a state where a lower rim is fitted in the tire and the upper support is in contact with an upper side wall of the tire. In the tire removing step, the tire is detached from the lower rim by relatively moving the lower rim vertically downward with respect to a lower support while the clamping step is maintained.