Color-Changing Mouse Feet for Wear Detection
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Solution Overview
Problem
Computer mouse feet made of polytetrafluoroethylene (PTFE) wear down over time, leading to a decline in mouse glide and performance, with no clear indication of wear level, making it difficult for users to determine when to replace them.
Innovation Solution
Incorporating mouse foot protrusions with a color-changing mechanism, where a first color at the distal end transitions to a second, visually distinct color as the protrusions wear down, indicating when replacement is necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If PTFE mouse feet are used instead of ceramic mouse feet, then cost effectiveness and balanced glide performance are improved, but wear resistance deteriorates over time
Solution Approach 1:
The patent applies color changes to the mouse feet by incorporating visual indicators that change color or become visible when the PTFE material wears down. This allows users to monitor the wear status of the mouse feet and replace them before complete failure occurs, thereby maintaining reliability while continuing to use the cost-effective PTFE material instead of more expensive ceramic alternatives.
2Device complexity
If mouse feet are used without visual indicators, then device complexity is reduced, but wear detection capability deteriorates
Solution Approach 1:
The patent incorporates color-changing visual indicators directly into the mouse feet structure. These indicators remain invisible or inconspicuous during normal use but become visible or change color when the PTFE material wears down to a critical threshold, providing intuitive wear detection without adding significant complexity to the overall device structure.
Solution Approach 2:
The mouse feet perform self-monitoring through the integrated visual indicators that automatically change state based on wear levels. This eliminates the need for external sensors, electronic monitoring systems, or user intervention to assess wear status, allowing the component to inform its own condition through passive visual feedback.
3Loss of substance
If mouse feet wear down without indication, then material loss progresses silently, but user awareness of replacement need deteriorates
Solution Approach 1:
The patent uses color-changing indicators that progressively reveal themselves as the PTFE material wears down. This provides continuous visual feedback to users about the extent of material loss, transforming the previously invisible degradation process into observable information that prompts timely replacement before performance significantly deteriorates.
Data Source
AI summary
A mouse for communication with a processor-based device. The mouse may include a housing having a base surface. The base surface may be configured to face a tracking surface on which the mouse may be placed on. The mouse may further include a plurality of mouse foot protrusions projecting from the base surface. A distal end of at least one of the plurality of mouse foot protrusions may be configured to contact the tracking surface on which the mouse may be placed on and the distal end may include a first color. An intermediate portion of the at least one of the plurality of mouse foot protrusions between the distal end of the at least one of the plurality of mouse foot protrusions and the base surface may include a second color, which may be different from the first color.