Universal Fitment for Oscillating Power Tool Accessories
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Solution Overview
Problem
Oscillating power tools from different brands have proprietary accessory attachment mechanisms, making it difficult to use universal accessories across various brands.
Innovation Solution
Designing an accessory with a fitment portion that includes multiple openings and configurations to accommodate various projection patterns of different oscillating power tool brands, such as Porter-Cable, Mastercraft, Dremel, Bosch, Milwaukee, Skil, Fein, and Ridgid, allowing universal attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proprietary attachment mechanisms are used for each brand, then reliability of attachment is improved, but adaptability to different brands deteriorates
Solution Approach 1:
The accessory is designed with a universal fitment portion that can attach to multiple different brand attachment mechanisms (Porter-Cable, Mastercraft, Dremel, Bosch, Milwaukee, Skil, Fein, and Ridgid). The fitment portion includes multiple opening configurations that correspond to different brand projection patterns, allowing one accessory to serve multiple functions across different tool brands.
Solution Approach 2:
The fitment portion is segmented into multiple opening configurations, each designed to receive projections from specific brands. This segmentation allows the accessory to selectively engage with different attachment mechanisms while maintaining a unified accessory structure.
2Adaptability or versatility
If multiple opening configurations are added to the fitment portion, then adaptability to different brands is improved, but device complexity increases
Solution Approach 1:
Multiple opening configurations that would traditionally require separate accessories are merged into a single fitment portion. The different opening patterns are integrated into one component, allowing universal attachment while maintaining structural unity and reducing the number of separate parts needed.
3Manufacturing precision
If proprietary attachment mechanisms are used, then manufacturing precision for each brand is improved, but ease of manufacture deteriorates
Solution Approach 1:
A single accessory design with universal fitment can be manufactured to attach to multiple brands, reducing the number of different precision components that need to be produced. The fitment portion incorporates multiple opening configurations that can be manufactured in a single production run.
Data Source
Figure 1A~1B
Figure 1C
Figure 1D
AI summary
An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a generally U-shaped opening open at the rear end and in communication with a central opening to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central opening, a second plurality of openings not in communication with and positioned radially outward from the central opening. The central opening, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.