Pneumatic Tire Inner Layout for RFID-Safe Balance Patch Removal
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Solution Overview
Problem
Existing methods for manufacturing retread tires risk damaging functional components like RFID tags attached to the inner surface due to the removal process of balance patches, which affects productivity and management efficiency.
Innovation Solution
A pneumatic tire design where balance patches and functional components like RFID tags are positioned at predetermined angles, typically 90 degrees apart in the tire's circumferential direction, to prevent damage during the removal of balance patches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If balance patches are attached to the inner surface of the tire for weight balance adjustment, then tire balance is improved, but the functional component (RFID tag) is at risk of damage during balance patch removal
Solution Approach 1:
The inner surface of the tire is divided into distinct functional zones: a balance patch attachment area and a functional component attachment area. By segmenting the attachment locations and separating them by a predetermined angle, the patent ensures that balance patch removal operations do not interfere with the integrity of the RFID tag or other functional components.
2Stability of the object's composition
If balance patches are removed and reattached during retread tire manufacturing, then weight balance adjustment is possible, but productivity is reduced due to time-consuming scraping operations
Solution Approach 1:
The patent establishes the predetermined angular separation between balance patch and functional component attachment positions during the initial tire manufacturing process. This preliminary positioning prevents the need for time-consuming scraping operations during retread manufacturing, as the balance patches can be removed and reattached without interfering with functional components, thereby maintaining productivity.
3Stability of the object's composition
If the entire surface of the balance patch is stuck to the inner surface of the tire, then balance adjustment is achieved, but the functional component may be unintentionally damaged during removal
Solution Approach 1:
The patent applies local quality by creating distinct attachment characteristics for different areas of the inner surface. The balance patch is attached to a specific local area separated by a predetermined angle from the functional component, allowing the balance patch to be firmly attached where needed while avoiding the functional component area, thus preventing damage during removal operations.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A pneumatic tire includes at least one balance patch arranged on a tire inner surface (30) that is a surface on the inner side of the tire (10), and a functional component (50) having a communication function and arranged on the tire inner surface (30) at a position separated at a predetermined angle θ from the balance patch (40) in a tire circumferential direction.