Tyre Sidewall Shield Mounting for Fast Off-Road Rim Assembly
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Solution Overview
Problem
Existing tire protection devices for off-road vehicles are complex, making them difficult and time-consuming to mount and dismount, especially in field operations.
Innovation Solution
A tire protection device featuring a polymer shield with lug-shaped protuberances for secure mounting to the rim, reducing the number of parts and fixing screws, and incorporating textile yarns for enhanced robustness and ease of assembly, with a composite structure that includes draped fabric layers for improved durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a protection device with multiple separate parts and many fixing screws is used, then the structural robustness is improved, but the device complexity increases and mounting time is extended
Solution Approach 1:
The patent combines multiple separate parts (shield, mounting portion, and fixing elements) into a single integrated crown structure. The crown is formed as one piece that includes both the mounting portion with fixing screws and the shield portion, eliminating the need for separate assembly of multiple components while maintaining structural robustness.
Solution Approach 2:
The crown structure serves multiple functions simultaneously: it provides structural support, acts as the mounting interface to the rim, and forms the protective shield. This multi-functional design reduces the overall number of components needed while maintaining the required protection and structural integrity.
2Strength
If a protection device with multiple separate parts and many fixing screws is used, then the structural robustness is improved, but the mounting time is extended
Solution Approach 1:
The integration of the shield and mounting portion into a single crown piece allows the entire protection device to be mounted in one operation rather than assembling multiple separate parts. This significantly reduces mounting time while the single-piece construction maintains structural robustness.
Solution Approach 2:
The fixing screws are pre-installed into the crown during manufacturing, so that during field mounting operations, only the crown needs to be positioned and secured to the rim. This preliminary preparation eliminates the need for separate screw installation steps during urgent field deployments.
3Reliability
If a protection device with exposed screws is used, then the mounting security is improved, but the ease of operation deteriorates due to required specialized equipment
Solution Approach 1:
The patent extracts the screw heads from the exterior of the mounting structure by incorporating them into the crown body itself. The fixing screws are recessed or integrated into the crown design, eliminating exposed screw heads that would require specialized tools for tightening or loosening, while maintaining secure mounting through the integrated structure.
Data Source
AI summary
A device for protecting the tire of a wheel, includes a shield having a polymer material; a crown for mounting the protection device on a rim of the wheel, the crown being secured to the shield and including: a connection portion for securely connecting the crown to the shield; a mounting portion, forming a single piece with the connection portion, provided with a plurality of orifices for mounting the crown on the rim, the mounting portion including a plurality of lug-shaped protuberances distributed along the circumference of the mounting portion while being angularly spaced from each other, each protuberance radially protruding towards the center of the crown and comprising an orifice.