Tire Tag Mounting in Reinforcing Belt and Sidewall Cavity
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Solution Overview
Problem
Existing tire monitoring and identification devices face challenges in durable and efficient mounting configurations that protect the devices from curing heat and tire bending forces, while also ensuring readability and minimizing interference with tire structures.
Innovation Solution
Mounting tire identification or monitoring devices within the reinforcing cords of the tire crown or encapsulating them in a depression on the sidewall, using materials like epoxy for secure adhesion and protection, and allowing for selective placement and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tire tag is mounted on the outer surface of the sidewall, then the tag is easily accessible for reading, but the tag is exposed to curing heat and tire bending forces which reduces durability
Solution Approach 1:
The patent embeds the tire tag within a cavity formed in the sidewall, nesting the tag inside the tire structure rather than mounting it on the outer surface. This nesting approach protects the tag from external hazards like curing heat and bending forces while maintaining accessibility for reading through the cavity opening.
Solution Approach 2:
The patent introduces encapsulation material as an intermediary substance that fills the cavity and surrounds the tire tag. This encapsulation material acts as a protective barrier between the tag and harmful environmental factors, including curing heat and mechanical stresses from tire bending, while allowing the tag to remain functional.
2Reliability
If the tire tag is embedded within the tire structure, then the tag is protected from heat and mechanical stress, but the tag may interfere with tire structures and reduce manufacturing precision
Solution Approach 1:
The patent segments the tire wall by forming a localized cavity at a specific position in the sidewall. This segmentation creates a dedicated space for the tag that is separated from the main tire structure, allowing the tag to be embedded without interfering with the overall tire construction and maintaining manufacturing precision.
Solution Approach 2:
The patent applies local quality by creating a specific cavity with particular dimensions and characteristics at a chosen location in the sidewall. This localized modification provides the necessary protection for the tag while minimizing impact on the rest of the tire structure, maintaining overall manufacturing precision and structural integrity.
3Reliability
If the tire tag is mounted in the bead filler, then the tag is protected from external damage, but the mounting complexity and device complexity increase
Solution Approach 1:
The patent makes the sidewall cavity serve multiple functions: it protects the tag from external damage, provides a secure mounting location, and maintains accessibility for reading. By combining these functions in a single structural feature, the patent reduces overall mounting complexity while achieving comprehensive protection.
Data Source
AI summary
A pneumatic tire includes a tire body having a crown portion and a pair of sidewalls. At least one reinforcing belt is disposed in the crown portion of the tire. A tag is carried by the reinforcing belt. In one embodiment, the tag is disposed in the location of one of the reinforcing cords that is disposed in the reinforcing belt. In another embodiment, the tag is disposed at the splice of the reinforcing belt. An alternative version of the tire has the tag carried in a depression formed in the outer surface of the tire sidewall. The tag may be encapsulated with an encapsulation material that is also disposed in the depression.