Hand-held Power Tool Alignment Apparatus with Color Feedback
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Solution Overview
Problem
Hand-held power tools, such as drill drivers, face challenges in aligning the tool at a precise angle relative to the workpiece surface, leading to inefficiencies in machining processes due to the lack of real-time deviation feedback and visualization.
Innovation Solution
An alignment apparatus integrated into the hand-held power tool, featuring a control unit and luminous elements that determine and visualize the deviation between the selected machining angle and the actual inclination angle, using different colors to indicate alignment status, allowing for simple and accurate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If no alignment apparatus is provided, then the device structure remains simple, but the machining precision deteriorates due to inability to maintain accurate angles
Solution Approach 1:
The patent employs luminous elements that emit different colors (first and second luminous colors) to indicate alignment status. When the actual inclination angle deviates from the selected machining angle by more than a threshold, the first color is emitted; when within the threshold, the second color is emitted. This color-based visual feedback system enables precise angle control without requiring complex mechanical alignment mechanisms.
2Manufacturing precision
If real-time alignment feedback is provided, then the machining precision improves, but the device complexity increases due to additional sensors and control systems
Solution Approach 1:
The alignment apparatus continuously determines the actual inclination angle of the tool relative to the workpiece surface and compares it with the selected machining angle. Based on this comparison, luminous elements provide real-time visual feedback through color changes, guiding the user to adjust the tool angle. This closed-loop feedback mechanism achieves high alignment accuracy without requiring complex mechanical intervention systems.
3Adaptability or versatility
If multiple alignment angles are supported, then the adaptability improves, but the device complexity increases due to multiple sensors and control logic
Solution Approach 1:
The control unit is designed to store multiple selectable machining angles and enable the alignment apparatus to function across different angle requirements. The same luminous elements and sensor system are used regardless of which machining angle is selected, providing universal adaptability without requiring separate alignment mechanisms for each angle.
4Ease of operation
If visual alignment indicators are added, then the ease of operation improves, but the device complexity increases due to additional components
Solution Approach 1:
The patent uses luminous elements capable of emitting different colors to provide intuitive visual alignment indicators. The color change clearly distinguishes between aligned and misaligned states, enabling users to quickly understand alignment status without complex displays or multiple indicators. This simple binary color system achieves high ease of operation with minimal additional components.
Data Source
AI summary
A hand-held power tool includes a housing, in which at least one drive unit configured to drive a tool holder is arranged. The tool holder is designed to hold an insertable tool. The hand-held power tool includes an alignment apparatus having a control unit and at least one luminous element arranged on the housing. The alignment apparatus is designed to determine, in real time, during operation of the hand-held power tool, a current deviation of a selectable machining angle, which is selected via the control unit and which is formed between the insertable tool inserted in the tool holder and a workpiece surface that is to be machined, from an actual inclination angle between the insertable tool inserted in the tool holder and the workpiece surface to be machined, and to visualize said deviation using the at least one luminous element.