Oscillating Blade Snap-Fit Anchor for Universal Arbor Engagement
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Solution Overview
Problem
Existing oscillating blades are not universally adaptable to various oscillating power tool designs, leading to inefficient torque transfer and compatibility issues with different tool arbor designs.
Innovation Solution
The oscillating blade features a tool arbor engagement portion with a side wall and cap wall, configured for a snap fit engagement with a power tool connection clamp, including a central arbor hole and arbor opening, allowing for attachment to a variety of tool designs and ensuring efficient torque transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If dedicated anchor designs are used to match specific tool manufacturers' arbor shapes, then torque transfer efficiency is improved, but adaptability to different tool designs deteriorates
Solution Approach 1:
The blade anchor portion is designed with a universal geometry that can accommodate multiple arbor designs from different manufacturers. The anchor includes a central arbor hole and a rearwardly open arbor slot, allowing it to work with both axial projection arbors and inserted arbors, making the blade compatible with various tool designs while maintaining efficient torque transfer
2Adaptability or versatility
If central arbor holes and rearwardly open arbor slots are incorporated into the anchor portion, then adaptability to different arbor designs is improved, but torque transfer efficiency deteriorates
Solution Approach 1:
The anchor portion has different geometric features at different locations: a central arbor hole for axial projection arbors and a rearwardly open arbor slot for inserted arbors. Each local feature is optimized for its specific function while contributing to the overall universal design, allowing the same anchor to efficiently transfer torque with different arbor types
3Adaptability or versatility
If multiple anchor designs are manufactured to fit different tool manufacturers, then adaptability is improved, but device complexity deteriorates
Solution Approach 1:
Instead of manufacturing multiple different blade designs for different tool manufacturers, a single universal blade design with a specially configured anchor portion is produced. This universal anchor with its central hole and rearward slot can accommodate various arbor designs, simplifying blade manufacturing while maintaining broad compatibility
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 solution enables the oscillating blade to be securely attached to multiple oscillating power tool designs, providing efficient torque transfer and improved compatibility, with a snap fit mechanism offering audible and tactile confirmation of proper engagement.
Implementation Method 1
The tool arbor lock point is configured to mate with the power tool connection clamp in a snap fit engagement when received in the clamp recess
Data Source
AI summary
An oscillating blade includes a body having a cutting edge, the cutting edge defining a first end of the oscillating blade, and an anchor coupled to the body and defining a second end of the oscillating blade. The anchor includes a base disposed at least partially in a first plane, a tool arbor engagement portion including a side wall extending away from the first plane and a cap wall coupled to the side wall and disposed at least partially in a second plane that is spaced apart from the first plane, and a plurality of lock points spaced between the first end and the second end of the oscillating blade in a first direction. The cap wall defines a central arbor hole configured to receive a power tool arbor. The plurality of lock points is laterally aligned in a second direction that is perpendicular to the first direction.