Rotating Sharpening Disc Knife Sharpener with Gear Selection
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Solution Overview
Problem
Existing knife sharpeners lack the ability to select different sharpening angles and forms, which is necessary for sharpening various types of knives effectively.
Innovation Solution
A knife sharpener that selects different sharpening angles or forms by rotating a sharpening component disc body with a knob, utilizing gear transmission to change the sharpening angles and forms, allowing for multiple sharpening functions such as sharpening knives, scissors, and flexible rods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sharpening angle is used, then the structure is simple, but it cannot sharpen different types of knives effectively
Solution Approach 1:
The patent implements a rotatable disc body with multiple sharpening angles that can be dynamically adjusted during operation. The disc body rotates about a rotation axis, allowing the user to switch between different sharpening angles (e.g., 15 degrees, 20 degrees, 25 degrees) to accommodate different knife types and sharpening needs, thus achieving adaptability without requiring multiple separate sharpeners
Solution Approach 2:
The patent creates a universal sharpening device by integrating multiple sharpening angles and forms into a single disc body structure. The disc body can perform various functions including sharpening knives at different angles, sharpening scissors, and flexible rod sharpening, making one device capable of handling multiple sharpening tasks that would traditionally require separate tools
2Adaptability or versatility
If multiple sharpening angles are integrated, then versatility is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple sharpening angles and forms into a single integrated disc body structure. Different sharpening components (e.g., sharpening sheets with different angles, scissors sharpening slots, flexible rod slots) are combined within one disc body that rotates on a single rotation axis, reducing the need for multiple separate components and simplifying the overall device architecture
Solution Approach 2:
The disc body is segmented into different functional zones with specific sharpening features (e.g., regions with different sharpening angles, separate slots for scissors and flexible rods). This segmentation allows each feature to be optimized for its specific function while maintaining a unified rotating structure that can be controlled by a single knob mechanism
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 knife sharpener provides enhanced versatility by allowing users to choose the appropriate sharpening angle or form for different knives, improving the sharpening process and user experience.
Implementation Method 1
The rotation of the gear on the knob drives the rotation of the different slots of the sharpening disc body to match the sharpening grooves of the shell
Data Source
AI summary
The utility model provides a knife sharpener that selects different sharpening angles or different sharpening forms by rotating a sharpening component disc body with a knob. The knife sharpener has a variety of grinding angles and sharpening components for sharpening different types of knives, which are concentrated and evenly distributed in one sharpening component disc body in the form of a disc. Through the axis rotation of gears on the knob and the gear transmission method, the disc body of the sharpener is driven to rotate to realize the function of selecting sharpening slots with different sharpening angles or different sharpening forms for sharpening.