Multilayer Conduit Wear Indicator via Colored Layers
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Solution Overview
Problem
Conduits used in automation and robotic applications wear down due to friction, leading to potential machine or robot failure if not detected in time.
Innovation Solution
A multilayer conduit with distinctively colored layers providing quantitative measurements of remaining thickness, allowing operators to visually assess wear and take appropriate action before failure occurs, using materials like nylon 12, thermoplastic polyurethane, or thermoplastic elastomer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conduit is used in automation and robotic applications, then it connects components and enables machine operation, but it gradually wears down due to friction leading to potential failure
Solution Approach 1:
The patent applies preliminary action by incorporating a wear indicator system that proactively signals conduit wear before complete failure occurs. The multi-layered structure with visible wear indicators allows operators to detect wear progression in advance, enabling preventive maintenance actions that extend the effective service life and maintain reliability of the conduit system.
2Reliability
If the conduit wear is not detected in time, then machine or robot failure occurs, but continuous monitoring increases system complexity
Solution Approach 1:
The patent implements self-service by designing a conduit that automatically indicates its own wear status through the multi-layered structure with visible indicators. The conduit itself serves as the monitoring device, eliminating the need for external sensors or complex monitoring systems. Operators can simply visually inspect the exposed layers to determine wear level, maintaining high reliability detection with minimal system complexity.
3Quantity of substance
If the conduit wall thickness is reduced to minimize material use, then manufacturing cost decreases, but wear resistance and reliability are compromised
Solution Approach 1:
The patent applies segmentation by dividing the conduit wall into multiple functional layers with different properties. The multi-layered structure allows optimization of each layer's thickness and material composition - thinner overall wall with distributed layers providing both material efficiency and adequate wear resistance through the combined functionality of individual layers.
Solution Approach 2:
The patent implements local quality by assigning different characteristics to different layers of the conduit wall. Each layer can be optimized for specific functions (wear resistance, flexibility, cost) rather than using uniform material throughout, allowing reduced overall material quantity while maintaining necessary reliability through strategically designed layer properties.
Data Source
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AI summary
A conduit includes a multilayer wall including an outer layer having a first color; an intermediate layer having a second color; and an inner layer having a third color, wherein the intermediate layer is between the outer layer and the inner layer, and the first color, the second color, and the third color are different. Each of the first color, the second color, and the third color indicates a level of wear of the multilayer wall when one of the first color, the second color, or the third color is exposed due to wear or abrasion.