Modular Safety Vest Lighting System
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Solution Overview
Problem
Existing safety vests and portable lighting systems for low-light situations are cumbersome, limit hand-free operation, and often pose hazards due to cords or heavy batteries, failing to provide adequate visibility and task lighting for workers in dark environments.
Innovation Solution
A modular, weather-resistant personal lighting system integrated into a safety vest with adjustable LED modules on the front and rear, powered by a rechargeable battery pack, featuring water-resistant components, concealed power cables, and adjustable mounting brackets for hands-free operation and enhanced visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional handheld flashlights or lanterns are used, then portable supplemental light is provided, but the user needs to dedicate a hand to control or aim the light, limiting task performance
Solution Approach 1:
The patent combines the lighting device with a safety vest to create an integrated hands-free lighting system. The light source, battery, and control components are merged into a single wearable unit that attaches to the vest, freeing both hands for task performance while providing illumination.
Solution Approach 2:
The safety vest serves multiple functions: it provides the structural base for mounting the lighting system, offers reflective visibility enhancement, and acts as the wearable platform that positions the light source optimally on the user's body for hands-free operation.
2Ease of operation
If battery operated headlamps are used, then hands-free lighting is provided, but the user must use neck muscles to direct the light, causing strain especially during extended use
Solution Approach 1:
The patent transitions the light source from the head region (vertical dimension) to the torso region (horizontal dimension). By mounting the light on the safety vest at the user's back or side, the system changes the dimensional position of the light source, allowing natural body movement to direct light without engaging neck muscles.
3Power
If powerful headlamps are used, then increased light output is achieved, but the device becomes heavier, placing additional strain on the neck muscles
Solution Approach 1:
The patent distributes the weight of the battery and lighting components across the user's torso through the safety vest structure, rather than concentrating it on the head. The vest's straps and fabric distribute the load across broader body areas (shoulders, back), counteracting the weight burden that would otherwise strain the neck.
4Duration of action of moving object
If battery is mounted on the belt and connected by power cord, then extended battery life is achieved, but the cord is cumbersome and presents safety hazards
Solution Approach 1:
The patent merges the battery and light source into a single integrated unit that attaches to the safety vest. This eliminates the need for a power cord connection between separate battery and lamp components, removing the hazard of dangling cords while maintaining extended battery operation capability.
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
The system provides hands-free, high-visibility lighting with adjustable power levels and modes, reducing neck strain and eliminating cord hazards, while allowing for easy replacement and repositioning of modules, enhancing user safety and visibility in low-light conditions.
Implementation Method 1
a plurality of adjustable water-resistant front LED modules located on the front surface
Implementation Method 2
a wearable safety garment having a front surface and a rear surface, at least a portion of which comprise reflective materials
Implementation Method 3
a battery pack contained in a weather resistant pocket on the rear surface
Data Source
AI summary
A personal lighting system includes: a wearable safety garment having a front surface and a rear surface, including reflective and high-visibility materials; a battery pack contained in a weather resistant pocket formed on the rear surface; adjustable water-resistant front LED modules located on the front surface; water-resistant power cables running from the front LED modules to the battery, the cables concealed under flush-mounted reflective strips; and, at least one water-resistant rear LED module located on the rear surface.