Breakaway Multi-Edge Oscillating Saw Blade for Continuous Cutting
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Solution Overview
Problem
Oscillating tools face inefficiencies due to blade attachments wearing out or breaking, requiring frequent replacement, which disrupts work, wastes time, and resources, as users often continue using substandard worn blades.
Innovation Solution
A multi-edge saw blade designed for oscillating tools with multiple cutting edges that can be sequentially used by breaking away worn edges, utilizing a row of perforations to reveal additional cutting edges, allowing continuous operation without removing the blade from the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-edge blade attachment is used in an oscillating tool, then the blade can be easily manufactured and attached, but the blade must be replaced frequently when worn, causing work disruption and time loss
Solution Approach 1:
The blade is segmented into multiple cutting edges along its length, with perforations creating distinct sections. When one cutting edge wears out, the blade can be segmented at the perforations to remove only the worn portion and expose a fresh cutting edge, eliminating the need to replace the entire blade and maintaining work continuity
Solution Approach 2:
Instead of discarding the entire blade when one cutting edge wears out, the invention allows selective discarding of only the worn cutting edge section while recovering and continuing to use the remaining functional cutting edges on the same blade body, reducing waste and replacement frequency
2Reliability
If blade attachments are replaced frequently when worn, then cutting performance is maintained, but time is wasted on removal and replacement processes
Solution Approach 1:
The blade is divided into multiple usable cutting edge sections separated by perforations. When one section wears out, the blade can be quickly segmented at the perforation line to expose the next fresh cutting edge, maintaining cutting performance while minimizing the time required for blade replacement
Solution Approach 2:
Multiple cutting edges are pre-formed on the blade during manufacturing, with perforations pre-positioned to facilitate easy segmentation. This preliminary preparation allows the user to quickly access fresh cutting edges without complex replacement procedures, reducing time loss while maintaining reliable cutting performance
3Reliability
If the entire blade is discarded when one cutting edge is worn, then a fresh blade is available, but material resources are wasted
Solution Approach 1:
The blade is segmented into multiple cutting edge sections by perforations. When one section wears out, only that specific segment needs to be removed, allowing the remaining blade material with functional cutting edges to be retained and used, thereby reducing material waste while ensuring fresh cutting edges are available
Solution Approach 2:
The invention enables selective discarding of only the worn cutting edge portion while recovering and continuing to use the remaining blade body with its intact cutting edges, significantly reducing material resource waste compared to discarding the entire blade
4Productivity
If a multi-edge blade with breakaway sections is designed, then blade replacement frequency is reduced, but the blade structure becomes more complex
Solution Approach 1:
The blade incorporates perforations that create natural segmentation lines. These perforations simplify the structure by providing predetermined break points, allowing the blade to be divided into manageable sections without requiring complex mechanisms, thereby extending blade usage duration while keeping the structure relatively simple
Solution Approach 2:
The perforations are designed to facilitate self-service segmentation by the user. The blade structure includes these built-in weak points that allow easy manual breaking or snapping at the perforation lines, eliminating the need for complex external tools or mechanisms and reducing overall structural complexity while extending productive usage
Data Source
AI summary
The present disclosure provides a multi-edge saw blade for use with an oscillating tool that provides multiple cutting edges that can be used sequentially as each cutting edge becomes worn-out or damaged. The multi-edge saw blade includes a first row of cutting teeth arranged across its distal edge and a row of perforations situated across the distal end of the blade and spaced a distance behind the first row of cutting teeth. In some aspects, the multi-edge saw blade further includes at least one additional row of perforations, each situated a spaced distance behind the row of perforations before it. Responsive to a twisting force applied orthogonally to the plane of the blade, each blade edge can be removed from the blade to reveal a fresh row of cutting teeth. The multi-edge saw blade further includes an attachment socket on its proximate end.