Angle-Adjustable Bench Grinder Tool Rest with Indicator
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Solution Overview
Problem
Bench grinders lack an efficient and user-friendly method to adjust and accurately set the angle of tool rests during sharpening processes, which can lead to inconsistencies in tool sharpening and increased user effort.
Innovation Solution
An angle-adjustable tool rest with an integrated angle indicator, allowing users to set and verify the angle of the tool rest relative to the grinding surface without requiring tools, using a bolt and L-shaped bracket system with visible angle markings for precise adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed tool rest is used on a bench grinder, then the structure is simple and stable, but the angle cannot be adjusted for different sharpening requirements
Solution Approach 1:
The tool rest is designed with adjustable angle capability, transforming from a fixed static structure to a dynamic one that can be repositioned. The tool rest assembly includes components that allow it to be rotated or tilted to different angles relative to the grinding wheel, enabling adaptation to various sharpening requirements while maintaining operational simplicity through straightforward adjustment mechanisms.
2Measurement precision
If manual angle estimation is used without an indicator, then the device complexity is low, but the measurement precision and sharpening consistency deteriorate
Solution Approach 1:
An angle indicator serves as an intermediary device between the tool rest and the user's visual perception. The indicator provides a clear visual reference that mediates the angle setting process, allowing users to accurately determine and maintain the desired angle without requiring complex measurement calculations or tools. The indicator typically consists of markings or a gauge that displays the current angle setting.
Solution Approach 2:
The patent replaces complex mechanical angle measurement systems with simpler visual indication mechanisms. Instead of requiring precise mechanical gauges or digital displays, the design uses straightforward visual indicators such as colored markings, alignment lines, or a simple angle gauge that can be read directly, substituting complex mechanical measurement with simpler visual communication of the angle setting.
3Ease of operation
If the tool rest angle cannot be easily adjusted, then the device complexity is low, but the ease of operation and sharpening consistency worsen
Solution Approach 1:
The tool rest adjustment mechanism is segmented into separate, independently adjustable components. The tool rest assembly is divided into parts that can be adjusted relative to each other, such as a tool rest body and an angle adjustment component. This segmentation allows for easy independent adjustment of the angle without affecting other parts of the system, simplifying the operation while maintaining structural integrity.
Data Source
AI summary
A bench grinder has a tool rest mounted on a bracket and disposed adjacent a grinding wheel of the grinder. The tool rest has a tool rest platform that is connected to the bracket by a pivot connection and that may be secured in different angular positions by a bolt, such as a hand bolt. The bracket end to which the platform is affixed is provided with a cylindrical surface portion marked with angle marks. An opening is provided in the tool rest platform through which the angle marked surface is visible. An indicator line on the tool rest platform aligns to the angle mark to indicate the angle of the platform.