Hand-held Power Tool Switching Element Dynamic Reconfiguration
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Solution Overview
Problem
Existing hand-held power tools lack flexibility in operation and customization, requiring significant design effort and limiting user-defined parameter adjustments, which increases manufacturing costs and operational complexity.
Innovation Solution
A hand-held power tool with a housing containing a drive motor, electronics, and a power supply, featuring a first switching element with a changeable functional assignment via an operator, allowing for the selection and configuration of electrical functions and features, such as lighting, using a second switching element or external interface, enabling customization and adaptation to various working conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If factory-defined parameters and fixed functional assignments are used in hand-held power tools, then manufacturing costs are reduced and design effort is minimized, but user flexibility and adaptability to different working conditions are limited
Solution Approach 1:
The patent implements dynamic reconfigurability by allowing users to change the functional assignment of switching elements during operation. The control unit stores multiple functional assignments and switches between them based on user input, enabling the tool to adapt to different working conditions without physical modifications or complex reconfiguration procedures.
2Adaptability or versatility
If multiple pre-defined operating modes with fixed parameters are provided, then user needs can be met to some extent, but the effort and cost for manufacturer to define and store these parameters increases
Solution Approach 1:
The patent makes the switching elements universal by enabling them to be assigned to different electrical functions and electronic features through software configuration. Instead of providing separate physical controls for each function, a single switching element can be reprogrammed to serve multiple purposes, reducing manufacturing complexity while maintaining operational versatility.
Solution Approach 2:
The system allows dynamic change of functional parameters through software rather than hardware modifications. The control unit stores multiple functional assignments that can be switched via wireless communication or physical switching elements, enabling parameter reconfiguration without increasing manufacturing cost or complexity.
3Ease of operation
If fixed electrical functions are assigned to switching elements, then device simplicity is maintained, but operational convenience and user customization are reduced
Solution Approach 1:
The functional assignment of switching elements is made dynamic rather than static. Users can change the function assigned to a switching element during operation through wireless communication or by using a second switching element, allowing the interface to adapt to user preferences and specific task requirements without adding physical complexity.
Data Source
AI summary
Described is a hand-held power tool (300) comprising: a housing (305) that has a handle (315); a drive motor (335), which is accommodated in the housing, for driving a mechanical interface, in particular a tool holder; and first electronics (370) accommodated in the housing. According to the invention, the function assigned to at least a first switching element (382) disposed on the housing can be changed by a user.