Interleaved Blade Sharpener for Consistent Angle Maintenance
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Solution Overview
Problem
Existing sharpeners for knife blades require significant skill to maintain the angle of the blade during sharpening, often leading to rounding and are cumbersome, making them time-consuming and infrequently used.
Innovation Solution
A blade sharpener with interleaved sharpening members extending from transverse walls forming a cavity, allowing for easy maintenance of the blade angle and minimizing rounding, featuring a compact, durable design that can be handheld or mounted, and using abrasive materials like sapphires, diamond dust, or tungsten carbide for sharpening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional sharpeners are used to maintain the correct blade angle, then sharpening effectiveness is improved, but device complexity and ease of operation deteriorate due to being time-consuming and cumbersome
Solution Approach 1:
The sharpener divides the sharpening function into multiple interleaved sharpening members (at least two) that are arranged separately but work together. Each member can be independently positioned and adjusted, allowing the blade angle to be maintained through the geometric arrangement of segments rather than requiring complex single-component mechanisms.
Solution Approach 2:
The sharpening members are nested within a common support structure or housing, with each member positioned in relation to the others. This nested arrangement allows multiple sharpening surfaces to be integrated in a compact package while maintaining their individual adjustability and functional independence.
2Manufacturing precision
If traditional sharpeners are used to maintain the correct blade angle, then sharpening effectiveness is improved, but loss of time increases due to being time-consuming
Solution Approach 1:
The sharpening members are pre-positioned and pre-adjusted during manufacturing or initial setup to the correct geometric relationship. This preliminary action establishes the proper blade angle maintenance capability, so that during actual use, the user simply needs to insert and draw the blade through the sharpeners without complex adjustments, significantly reducing sharpening time.
Solution Approach 2:
The interleaved arrangement of sharpening members creates a self-aligning system where the geometry of the nested structure automatically guides the blade at the correct angle. The system serves itself by maintaining proper alignment through its structural design rather than requiring continuous user intervention or complex adjustment mechanisms during operation.
3Ease of operation
If multiple sharpening members are interleaved, then ease of operation is improved, but device complexity increases
Solution Approach 1:
Multiple sharpening members that would otherwise be separate devices are merged into a single integrated nested structure. This combining of multiple sharpening functions into one unified apparatus provides ease of operation by allowing simultaneous or sequential use of multiple sharpening surfaces without requiring multiple separate tools, while the nesting principle keeps the overall structural complexity manageable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The blade sharpener effectively sharpens knife blades with minimal skill required, providing a compact, durable, and cost-effective solution that maintains the blade angle, reducing the risk of rounding and enhancing user convenience.
Implementation Method 1
using abrasive materials like sapphires, diamond dust, or tungsten carbide for sharpening
Data Source
Figure 1~2
Figure 3~4
AI summary
A blade sharpener and method of sharpening a blade, where the blade sharpener has a base with opposed walls extending transversely therefrom to form a cavity. A plurality of sharpening members extend into the cavity from the opposed walls and cross each other, preferably in an interleaved manner, within the cavity.