Retreaded Tire RFID Embedding for Secure Tag Fixation
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Solution Overview
Problem
Existing methods for mounting RFID tags on tires without pre-existing tags face issues such as peeling and intentional replacement, and the risk of damage due to strain concentration and radio wave interference from metal components.
Innovation Solution
A production method for retreaded tires that incorporates an RFID tag within a crosslinked rubber protector, positioned radially inward of the belt and radially outward of the tread's maximum width, with a shorter initial vulcanization time for the protector than the new tread, ensuring the RFID tag is securely fixed and protected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an RFID tag is mounted on a tire after manufacturing, then information management capability is added, but the risk of tag peeling and intentional replacement increases
Solution Approach 1:
The RFID tag is embedded in the protector before the protector is attached to the tire. The protector with the pre-embedded tag is then attached to the tire together as a single unit, eliminating the risk of tag peeling or replacement since the tag cannot be separated from the protector once bonded to the tire.
Solution Approach 2:
The RFID tag is nested inside the protector, which is then nested on the tire. This nested structure ensures the tag is protected and securely fixed within the multi-layer construction, preventing unauthorized access or removal.
2Ease of manufacture
If the RFID tag is positioned near metal components for easy access, then mounting is simplified, but radio wave interference from metal components increases
Solution Approach 1:
The protector serves as an intermediary layer between the RFID tag and metal components. It provides electrical insulation and radio wave transmission capability, allowing the tag to be positioned conveniently while protecting it from interference by metal structures.
Solution Approach 2:
The protector is made of a flexible, radio-transparent material that can be positioned over metal components without causing interference. The material allows radio waves to pass through while providing mechanical protection and electrical insulation for the RFID tag.
3Productivity
If the protector and new tread are vulcanized simultaneously, then the process is simplified, but the RFID tag is exposed to excessive heat and strain
Solution Approach 1:
The vulcanization process is segmented into two distinct stages: first vulcanizing the protector with the embedded RFID tag at lower temperature and shorter time, then vulcanizing the new tread separately. This segmentation allows optimization of each vulcanization step for its specific requirements, protecting the sensitive RFID tag from excessive heat while maintaining overall process efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method reduces risks of RFID tag peeling and damage, forming a reliable communication environment for effective information management by securely fixing the RFID tag and minimizing strain and radio wave interference.
Implementation Method 1
a protector which is a crosslinked product of a rubber composition
Implementation Method 2
an RFID tag which is enclosed in the protector
Data Source
AI summary
A method for producing a retreaded tire 2 includes a step of shaving a tread 104 from a tire 102, a step of attaching a tag member 30 to a formed surface BD made by shaving the tread 104, and a step of reconstructing a new tread 4. The formed surface BD is located radially outward of a maximum width position of the tire 2. The tag member 30 is located radially inward of an end of a belt 14. An initial vulcanization time t10 of a rubber composition for a protector 34 of the tag member 30 is shorter than an initial vulcanization time t10 of a rubber composition for the new tread 4.