Interchangeable Power Tool Heads with Universal Motor Base
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The proliferation of various power tools for DIY enthusiasts leads to high costs and storage challenges, with specialized tools often being underutilized due to their dedicated purposes and the need for multiple battery packs for cordless tools.
Innovation Solution
A power tool system with interchangeable tool heads that attach via mechanical and electrical connections, featuring a controller to adjust motor power based on the attached tool head and an intelligent lock-off mechanism for safety, allowing independent activation of tool accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple specialized power tools are owned to perform different jobs, then functional versatility is improved, but cost and storage space requirements increase
Solution Approach 1:
The patent implements a universal power tool platform with a common motor housing that accepts multiple interchangeable tool heads. Each tool head can be detached and replaced to perform different functions (drilling, driving, sanding, polishing, etc.), allowing a single base unit to replace multiple specialized tools. This multi-functionality approach directly reduces the total number of tools needed while maintaining functional versatility.
Solution Approach 2:
The power tool system is segmented into modular components: a common motor housing and interchangeable tool heads. Each tool head is a self-contained module that can be independently attached or detached. This segmentation enables the system to adapt to different tasks by simply swapping modules rather than owning entirely separate tools, thereby reducing quantity while preserving versatility.
2Duration of action of moving object
If multiple battery packs are kept for different cordless tools, then continuous operation capability is improved, but portability and simplicity deteriorate
Solution Approach 1:
The patent employs a universal battery interface design where a single battery pack type can power all tool heads on the platform. The electrical connection system is standardized across all components, eliminating the need for multiple specialized battery packs. Users only need to manage one type of battery pack while maintaining the ability to operate different tool heads continuously by swapping batteries rather than tools.
3Device complexity
If tool accessories are activated through the main trigger switch, then system simplicity is improved, but independent accessory control capability deteriorates
Solution Approach 1:
The control system is designed to be dynamic and adaptable based on the attached tool head. The housing includes a detection mechanism that identifies which tool head is mounted and automatically configures the control interface accordingly. When a tool head with accessories is detected, the system dynamically enables independent control options for those accessories, while maintaining simple trigger-switch-only control for tool heads without such capabilities. This dynamic adaptation provides both simplicity and independent control capability as needed.
Data Source
AI summary
A power tool is provided which accommodates interchangeable tool heads. The power tool includes: a tool body having a housing and an electric motor mounted within the housing, as well as a tool head that releasably attaches via a mechanical connection and an electrical connection to the tool body. The tool releasably connects to the output shaft of the electric motor when the tool head is attached to the tool body.