Angle Grinder Flange Retainer for Tool Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing angle grinders lack an efficient mechanism for securely retaining rotating tools, such as abrasive discs, during operation and storage, which can lead to accidents and tool misalignment.
Innovation Solution
The design incorporates a flange retainer, often a U-shaped spring clip, mounted on the angle grinder's housing or guard, which securely engages and retains the flange of the rotating tool when disengaged from the spindle, ensuring stability and easy reattachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no flange retainer is used, then the device complexity is reduced, but the reliability of tool retention deteriorates
Solution Approach 1:
The flange retainer is designed as a self-retaining mechanism that automatically engages with the flange when the rotating tool is mounted on the spindle. The spring-loaded arms naturally snap onto the flange outer diameter, providing automatic retention without requiring additional fastening operations or complex locking mechanisms.
Solution Approach 2:
The flange retainer is divided into multiple independent spring-loaded arms that can individually engage with the flange. This segmentation allows the retainer to accommodate variations in flange dimensions while maintaining reliable retention through distributed contact points along the flange outer diameter.
2Reliability
If a flange retainer is added, then the reliability of tool retention is improved, but the device complexity increases
Solution Approach 1:
The flange retainer serves multiple functions simultaneously: it retains the flange on the spindle, aligns the rotating tool with the spindle axis, and provides mechanical support during operation. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while improving reliability.
3Ease of operation
If the flange retainer uses a spring clip mechanism, then the ease of operation is improved, but the strength of retention deteriorates
Solution Approach 1:
The flange retainer employs a dynamic spring-loaded mechanism that adapts its retention force based on operational conditions. The springs provide sufficient force to securely retain the flange during high-speed operation while allowing easy manual engagement and disengagement when needed, balancing retention strength with operational ease.
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
This solution enhances user safety by maintaining tool alignment and stability during use and storage, reducing the risk of accidents and improving operational efficiency.
Implementation Method 1
a flange retainer disposed on the guard, wherein the flange retainer is a generally U-shaped spring clip that receives and retains the flange when the flange is disengaged from the spindle
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An angle grinder is disclosed and includes a housing, a motor within the housing, a gearcase extending from the housing, wherein the gearcase includes a spindle and the spindle is driven by the motor, a rotating tool removable engaged with the spindle, a flange removably engaged with the spindle to secure the rotating tool on the spindle, and a flange retainer disposed on the grinder, wherein the flange retainer is configured to receive and retain the flange when the flange is disengaged from the spindle.