Translucent Power Tool Dial Integrating Indicator Visibility
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Solution Overview
Problem
Existing electrical power tools require additional components and design changes to accommodate more indicator lights, increasing complexity and component count, which is inefficient and limits design flexibility.
Innovation Solution
Integrating indicator devices, such as LEDs, within the speed setting dial and electric power switch, allowing visibility through the dial without the need for a separate light cover or window, thus maintaining the housing's design and size while reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional indicator lights are provided to the electrical power tool, then the indicator functionality is improved, but the device complexity and component count increase
Solution Approach 1:
The patent combines the light cover and window components into a single integrated housing structure. The housing includes a transparent or translucent portion that directly serves as both the protective cover and the viewing window for indicator lights, eliminating the need for separate light cover and window components. This merging allows additional indicator lights to be added without increasing overall component complexity.
Solution Approach 2:
The transparent/translucent portion of the housing serves multiple functions simultaneously: it acts as a protective cover for internal components, provides a viewing window for indicator lights, and maintains structural integrity of the housing. This multi-functionality allows the same component to support multiple indicator lights without requiring additional specialized parts.
2Illumination intensity
If a light cover and window are provided to view indicator devices, then indicator visibility is improved, but the housing design and size must be changed
Solution Approach 1:
The patent merges the light cover and window into a single integrated transparent/translucent portion of the housing. This eliminates the need to modify housing design to accommodate separate light covers and windows, as the housing itself is designed with the transparent portion built-in. The housing can be manufactured as a single piece or pre-integrated assembly, maintaining design flexibility.
Solution Approach 2:
The transparent/translucent housing portion serves as both the protective cover and the viewing window, eliminating the need for separate components. This multi-functional design allows the housing to maintain its original design while providing both protection and visibility functions, enhancing adaptability for different indicator configurations.
3Reliability
If multiple separate components are used for indicator devices, then indicator functionality is improved, but manufacturing and assembly complexity increase
Solution Approach 1:
The patent combines multiple separate components (light cover, window, housing) into an integrated housing structure with built-in transparent portions. This reduces the number of parts that need to be manufactured and assembled, simplifying the manufacturing process and reducing assembly complexity while maintaining full indicator functionality.
Solution Approach 2:
The integrated housing performs multiple functions that previously required separate components: protection, visibility, and structural support. This multi-functionality reduces the total component count and simplifies manufacturing workflows, as fewer distinct parts need to be produced and assembled.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the addition of more indicator devices without altering the housing's design or size, reducing component complexity and enhancing indicator visibility, while maintaining the tool's functionality.
Implementation Method 1
a speed setting dial (42) and an electric power switch (21) which are made of a light transmissive material
Data Source
Figure 1
Figure 2
Figure 3(A)~3(C)
AI summary
An electrical power tool may include a housing, a rotating tool that is rotatably attached to the housing, a motor that is positioned in the housing and is capable of rotating the rotating tool, a manipulating portion that is attached to the housing, and an indicator device that is disposed in the housing and is capable of indicating a condition of the electrical power tool. The manipulating portion is positioned to substantially cover the indicator device. The manipulating portion is constructed such that light emitted from the indicator device can be transmitted therethrough.