Adjustable Woodturning Tool Adapter for Scraping and Shear Scraping
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Solution Overview
Problem
Conventional woodworking hand tools have a fixed relationship between the handle and cutting edge, limiting the ability to adjust the cutting angle, necessitating multiple tools for scraping and shear scraping actions.
Innovation Solution
A woodworking hand tool with a rotationally adjustable adapter between the handle and cutting edge, allowing the cutting edge to be positioned at various angles for different cutting actions, including scraping and shear scraping, using a clamping mechanism and multiple recesses for precise angular adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed relationship between handle and cutting edge is used, then the tool structure is simple, but the adaptability to different cutting actions is limited
Solution Approach 1:
The adapter is made rotatable relative to the handle, allowing the cutting edge angle to be dynamically adjusted between different operational positions (scraping and shear scraping). This dynamic adjustment capability enables a single tool to perform multiple cutting actions that previously required separate fixed-angle tools.
Solution Approach 2:
The tool is designed with an adapter that can be positioned at multiple angles, enabling one tool to perform both scraping and shear scraping actions. This multi-functionality eliminates the need for users to acquire multiple specialized tools for different cutting actions.
2Adaptability or versatility
If multiple fixed-angle tools are acquired for different cutting actions, then the adaptability to different cutting actions is improved, but the device complexity and number of tools increase
Solution Approach 1:
A single tool with an adjustable adapter performs the functions of multiple fixed-angle tools. The adapter can be rotated to different angular positions to execute both scraping and shear scraping actions, eliminating the need for users to maintain a collection of specialized single-function tools.
Solution Approach 2:
The invention combines multiple cutting functions into one tool by integrating an adjustable adapter mechanism. Instead of using separate tools for scraping and shear scraping, the adapter merges these functions by allowing angular adjustment to achieve different cutting actions with a single tool.
3Adaptability or versatility
If an adjustable adapter is added to allow multiple cutting angles, then the adaptability to different cutting actions is improved, but the device complexity increases
Solution Approach 1:
The adapter incorporates a rotatable joint that allows angular adjustment between fixed operational positions. This dynamic mechanism enables the cutting edge to be presented at different angles to the workpiece, providing versatility while maintaining a relatively simple mechanical structure based on rotation and clamping.
Data Source
AI summary
A woodworking hand tool, particularly for use in woodturning, comprisesa shaft like handle provided at one end with a metallic cutting edge, and also with a flat along at least part of its length for engagement, in use, with a tool rest of a lathe or other machine, for stability andwherein the cutting edge is carried on, or by an adaptor that is rotationally adjustable with respect to the handle between at least two operational positions by the user, depending on the cutting action required.