Blade Sharpener with Interleaved Members for Consistent Angles
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Solution Overview
Problem
Existing blade sharpeners require significant skill to use properly and often fail to maintain the correct angle during sharpening, leading to rounding of the blade and are cumbersome, thus being neglected or used infrequently.
Innovation Solution
A blade sharpener with transversely extending walls forming a cavity and interleaved sharpening members that allow for easy, effective sharpening by maintaining a consistent angle, featuring a base with anchoring elements and resiliently flexible portions to absorb perpendicular forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional sharpeners are used to sharpen blades, then sharpening can be performed, but the blade angle cannot be maintained consistently and the blade becomes rounded
Solution Approach 1:
The patent introduces an intermediary device (the sharpener with fixed-angle guides and V-shaped groove) that mediates between the user and the blade. This intermediary maintains the correct blade angle through its geometric structure, eliminating the need for the user to manually maintain the angle, thus resolving the contradiction between precision and ease of operation
Solution Approach 2:
The patent changes the parameter of blade angle from a variable controlled by user skill to a fixed parameter determined by the sharpener's geometry. The V-shaped groove and guiding surfaces establish a constant angle relationship, transforming the sharpening process from one requiring skill-based angle control to one where the angle is inherently fixed by the device structure
2Productivity
If traditional sharpeners are used to sharpen blades, then sharpening can be performed, but the devices are time-consuming and cumbersome
Solution Approach 1:
The patent segments the sharpening function into distinct geometric components: the V-shaped groove for angle maintenance, the guiding surfaces for blade positioning, and the abrasive elements for material removal. This segmentation allows each component to perform its specific function efficiently, reducing overall process complexity while maintaining high productivity
Solution Approach 2:
The sharpener is designed to be self-aligning and self-regulating. The V-shaped groove automatically maintains the blade angle, and the guiding surfaces automatically position the blade, eliminating the need for complex adjustment mechanisms or skilled operation, thus improving productivity while reducing operational complexity
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 is compact, durable, and easy to use, requiring minimal skill, while effectively sharpening blades by maintaining a consistent angle and protecting the user's hand, with the option for handheld or mounted use.
Implementation Method 1
The sharpening members may be rigid. The sharpening members may have free ends located in the cavity.
Data Source
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.