Cutting Tool Supporting Portion for Preset Grinding Angles
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Solution Overview
Problem
Existing cutting tools require multiple components and complex logistics for precise grinding and polishing, increasing user effort and stability challenges during the process.
Innovation Solution
A cutting tool with a supporting portion that allows stable placement on a surface at a predetermined angle, enabling secure and efficient grinding or polishing without additional aids, using a handle design with adjustable or fixed supporting surfaces to maintain a consistent working angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a grinding gauge is used to position the blade at a predetermined grinding angle, then the grinding angle precision is improved, but the device complexity and logistic effort increase due to requiring multiple components (cutting tool, grinding gauge, and grinding tool)
Solution Approach 1:
The supporting portion is integrated directly into the cutting tool body, merging the positioning function with the cutting tool itself. This eliminates the need for a separate grinding gauge, reducing the system from three components to two while maintaining precise angle control through the geometric design of the supporting portion
Solution Approach 2:
The supporting portion serves multiple functions: it provides stable support during grinding, defines the working angle through its geometry, and enables direct contact with the underlying surface. This multi-functional design replaces the specialized grinding gauge while achieving the same positioning precision
2Stability of the object's composition
If the cutting tool is held and pressed onto the underlying surface during grinding, then the stability is improved, but the ease of operation decreases due to requiring continuous user effort
Solution Approach 1:
The center of gravity is positioned in the region of the supporting portion, creating a self-stabilizing effect. This gravitational counterbalance allows the cutting tool to maintain its working angle automatically when placed on the underlying surface, reducing the continuous user effort needed to hold it stable during grinding
3Manufacturing precision
If the working angle is kept constant during grinding, then the manufacturing precision is improved for uniform sharpening, but the adaptability decreases when different grinding angles are needed for different applications
Solution Approach 1:
The supporting portion is designed to be adjustable between different positions, allowing the working angle to be dynamically changed according to different grinding requirements. This adjustability maintains manufacturing precision for each specific angle while providing versatility across multiple applications
Data Source
AI summary
A cutting tool, in particular a knife, includes at least one blade with a blade body and a cutting edge. In order to grind or polish the cutting tool with precision even without a grinding template, provision is made for the cutting tool to have at least one supporting portion which defines a supporting plane by means of which, for the purpose of grinding and/or polishing the cutting edge, the cutting tool can be stably placed on a planar underlying surface, the blade body therefore being oriented at a working angle ranging from 65° to 80° in relation to the underlying surface. A set for grinding and/or polishing a cutting tool and also a corresponding method are likewise disclosed.