Adjustable Guide Assembly for Tool Sharpener
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Solution Overview
Problem
Existing cutting tools become dull over time and require sharpening, but current sharpening techniques lack efficiency and effectiveness in restoring sharpness.
Innovation Solution
A hand-held powered tool sharpener with a flexible abrasive member and an adjustable guide assembly that allows for selective angle positioning of the cutting tool during sharpening, using a biasing mechanism to maintain contact and ensure precise alignment with the abrasive surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed guide assembly is used to support the cutting tool during sharpening, then the alignment and angle consistency are improved, but the adaptability to different tool configurations deteriorates
Solution Approach 1:
The guide assembly incorporates adjustable components that allow the guide surface to be repositioned along the abrasive member at different locations and angles. This dynamic adjustability enables the same guide assembly to adapt to various tool configurations while maintaining consistent sharpening angles, thus resolving the contradiction between angle consistency and adaptability.
2Adaptability or versatility
If an adjustable guide assembly is provided to accommodate different tool configurations, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The guide assembly is designed with a universal structure that can accommodate multiple tool types and configurations through adjustment mechanisms. Rather than creating separate guide assemblies for each tool type, a single multi-functional guide assembly is provided that can be adjusted to serve various sharpening needs, thus improving adaptability without proportionally increasing complexity.
3Ease of operation
If the guide member is pivotally mounted to allow angle adjustment, then the ease of operation is improved, but the stability of the angle setting deteriorates
Solution Approach 1:
The guide assembly incorporates a biasing mechanism that applies a restoring force to maintain the guide surface at a predetermined angle relative to the abrasive member. This biasing action provides automatic feedback that stabilizes the angle setting during sharpening operations, ensuring consistent angles while still allowing easy adjustment when needed.
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 tool sharpener effectively maintains contact and adjusts angles to sharpen cutting tools efficiently, preventing damage and ensuring consistent sharpening across different tool configurations, enhancing the sharpness and longevity of cutting edges.
Implementation Method 1
The guide member has a cam follower which contactingly engages the cam surface to establish the selected angle in relation to the selected position of the cam surface
Implementation Method 2
A biasing mechanism applies a biasing force to urge the guide surface to pivot toward the planar extent to maintain the cam follower in contact with the cam surface
Implementation Method 3
a flexible abrasive member having an abrasive surface arranged along a planar extent
Data Source
AI summary
Apparatus for sharpening a cutting tool. In some embodiments, a tool sharpener is provided with a flexible abrasive medium having an abrasive surface and arranged along a planar extent. A guide assembly has a guide frame, a cam surface, and a pivotal guide member. A guide surface on the guide member extends at a selected angle with respect to the planar extent of the medium to support a first side of the tool during presentation of a second side and cutting edge of the tool against the abrasive surface along the planar extent. A cam follower contactingly engages the cam surface to establish the selected angle. A biasing mechanism applies a biasing force to urge the guide surface to pivot toward the planar extent to maintain the cam follower in contact with the cam surface.