Nail File With Polygonal And Circular Through-Holes To Prevent Clogging
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Solution Overview
Problem
Existing nail files tend to clog due to nail filings remaining on the file teeth, requiring frequent cleaning and reducing their effectiveness in grinding and polishing nails.
Innovation Solution
A nail file design featuring a plate-shaped base material with through-holes that have polygonal and circular opening portions at both ends, arranged in a honeycomb pattern to enhance grinding force and prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If groove-shaped file teeth are formed on a plate-shaped base material to enable rapid grinding and polishing, then grinding efficiency is improved, but clogging occurs because nail filings remain on the file teeth
Solution Approach 1:
The file teeth are segmented into multiple types with different shapes (polygonal and circular) and different orientations on the base material. This segmentation allows different regions to serve different functions: polygonal teeth provide strong grinding action while circular teeth reduce clogging, enabling the system to achieve both high productivity and reduced harmful clogging effects
Solution Approach 2:
Different areas of the base material are assigned different file tooth characteristics. The polygonal opening portions are located in regions requiring strong grinding force, while circular opening portions are placed in regions where clogging is more likely. This local differentiation optimizes both grinding efficiency and clogging prevention across the entire file surface
2Productivity
If file teeth are made coarse to enhance grinding force for quick filing, then productivity is improved, but clogging increases due to larger filings remaining on the teeth
Solution Approach 1:
The file teeth are divided into coarse polygonal teeth for rapid grinding and finer circular teeth for reducing clogging. This segmentation allows the user to utilize both coarse and fine grinding actions within a single file, maintaining high productivity while preventing the excessive clogging that would occur with coarse teeth alone
Solution Approach 2:
The invention changes the geometric parameters of the file teeth by incorporating both polygonal and circular shapes with different sizes and orientations. This parameter variation enables the file to provide both strong grinding force (from larger polygonal teeth) and reduced clogging (from circular teeth), resolving the contradiction between filing speed and clogging
Data Source
AI summary
A nail file that can prevent clogging without frequently performing an operation of removing filings from file teeth and can effectively enhance grindability is usable to quickly files nails. The nail file includes a plate-shaped base material, and a plurality of through-holes. The plurality of through-holes are formed on the base material, have opening portions as file teeth at both ends, and a shape of at least each of the opening portions at one end is a polygon. The opening portions at both the ends of the through-holes, the shape of each of the opening portions at the one end may be preferably a polygon, and the shape of each of the opening portions at the other end may be preferably a circle.