Powered Ratchet Lighting Layout for Deep Socket Visibility
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Solution Overview
Problem
Existing powered ratchet tools inadequately illuminate workpieces, particularly when using deep sockets or socket extensions, due to their compact and solid construction, limiting visibility in small or hard-to-reach spaces.
Innovation Solution
An application-targeted lighting system integrated into the ratchet tool that casts a directed beam of light through a broad angle beneath the tool, illuminating the workpiece and workspace, including areas beyond the ratchet head, using an array of LED lights and a flexible circuit board to extend the illumination range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the ratchet tool uses a compact and solid construction, then the tool structure is stable and durable, but the illumination of the workpiece is inadequate
Solution Approach 1:
The patent combines the lighting system with the ratchet tool housing, integrating LED lights and diffusers into the existing tool structure. This merging approach provides workpiece illumination without requiring a completely separate lighting device, thus improving illumination while maintaining relatively simple construction.
Solution Approach 2:
The patent uses translucent or transparent portions in specific locations of the housing (such as the anvil area) to allow light to pass through to the workpiece. This local modification approach provides targeted illumination where needed while keeping the rest of the tool construction simple and solid.
2Length of moving object
If the ratchet tool uses deep sockets or socket extensions, then the reach to hard-to-access fasteners is improved, but the visibility of the workpiece is reduced
Solution Approach 1:
The patent addresses the visibility problem by introducing light from multiple directions through strategically placed LEDs and translucent housing portions. This multi-dimensional lighting approach ensures that even when deep sockets obscure the workpiece from above, light can reach the workpiece from side or angled directions through the extended socket area.
3Adaptability or versatility
If the ratchet tool is designed for small or hard-to-reach spaces, then the accessibility to confined areas is improved, but the lighting coverage is insufficient
Solution Approach 1:
The lighting system is segmented into multiple LED sources positioned at different locations within the tool housing. This segmentation allows light to be distributed to different areas, providing adequate coverage even in confined spaces where a single large light source would be too bulky.
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
Enhances visibility of the workpiece and workspace, allowing precise placement and operation of the ratchet tool in small or hard-to-reach locations, improving operational efficiency and accuracy.
Implementation Method 1
using an array of LED lights and a flexible circuit board to extend the illumination range
Data Source
AI summary
A power tool having a handle extending along a longitudinal axis, wherein the handle is configured to house a motor. A ratchet head is connected to a first end of the handle. The ratchet head supports an output shaft having a drive square or bit that is driven by the motor. The ratchet wrench includes an application-targeted lighting system disposed around a periphery of the handle that illuminates the ratchet head and a workpiece below the output shaft. The application-targeted lighting system may include an array of Chip-On-Board LED lights. The application-targeted lighting system illuminates the workspace in applications where socket extenders and/or deep sockets are used with the ratchet wrench.