Oscillating Tool Blade With Side Teeth For Debris Ejection
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Solution Overview
Problem
Conventional oscillating power tool blades with rectangular shapes struggle with controlled blind plunge cuts in thick materials due to debris accumulation, leading to increased stress on the tool and user, and lack the ability to efficiently widen slots sideways.
Innovation Solution
The blade features side teeth oriented perpendicular to the front edge with angled rear edges to facilitate debris ejection and a slot or opening for additional debris exit, allowing for minimal force usage in deep cuts and enabling sideways slot enlargement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional rectangular blade is used for blind plunge cuts in thick materials, then the blade structure is simple and easy to manufacture, but debris accumulates in the cut slot causing increased stress on the tool and user
Solution Approach 1:
The blade incorporates lateral ejection teeth that segment the continuous cut slot into multiple smaller channels, allowing debris to be ejected laterally through these teeth rather than accumulating in a single closed slot. This segmentation resolves the debris accumulation problem while maintaining the overall rectangular blade structure for ease of manufacture.
Solution Approach 2:
The invention extracts debris from the cut slot by providing lateral ejection pathways through the teeth positioned on the sides of the blade. These teeth actively remove debris laterally as the blade progresses, preventing accumulation and reducing stress on the tool and user during blind plunge cuts.
2Shape
If a conventional rectangular blade is used for blind plunge cuts, then the blade maintains a simple rectangular shape, but the ability to control side position and widen slots is limited
Solution Approach 1:
The lateral ejection teeth serve multiple functions: they eject debris laterally, guide the blade along the cut path for improved side position control, and enable the blade to widen slots by cutting sideways from the initial slot. This multi-functionality enhances ease of operation while preserving the simple rectangular blade shape.
Solution Approach 2:
The invention adds lateral debris ejection capability perpendicular to the primary cutting direction. The lateral ejection teeth create a third dimension of debris removal (lateral direction) in addition to the forward cutting motion, enabling improved side position control and slot widening capabilities without changing the overall rectangular blade geometry.
3Device complexity
If a conventional rectangular blade is used for deep cuts, then the blade structure remains simple, but the force required increases significantly causing stress on the tool and user
Solution Approach 1:
The lateral ejection teeth continuously extract debris from the cut slot during deep cutting operations. By removing debris as it is generated rather than allowing it to accumulate, the cutting force required is significantly reduced, eliminating the stress on tool and user while maintaining the simple blade structure.
Solution Approach 2:
The lateral ejection teeth provide continuous debris removal throughout the entire cutting process, from initial entry to final depth. This continuous action prevents debris accumulation at any stage of the cut, maintaining consistently low cutting forces throughout deep plunge operations without requiring complex blade structures.
Data Source
AI summary
An improved blade for use with an oscillating power tool is disclosed. A rectangular style blade includes side teeth to eject debris and allow rapid but well controlled blind plunge cuts. The side teeth are preferably asymmetric with a forward orientation to bias debris out and the blade inward. Preferably one or more openings or slots allow for additional debris removal. The side teeth also allow for controlled side cutting.