Deployable Safety Ladder With Solar-Powered Audio Guide
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Solution Overview
Problem
Current emergency escape ladders are cumbersome and difficult to deploy quickly and safely during emergency situations, especially in smoke-filled or dark environments.
Innovation Solution
A deployable safety escape ladder with an outer enclosure installed below an upper floor window, equipped with a photovoltaic cell for power, a release latch with a breakable glass shield, a mechanical cable system, and an audio/video playback device for instructions, along with a safety grab bar and non-slip coating for enhanced safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional chain ladder is used for emergency escape, then it can provide a means of escape from upper floors, but it requires multiple manual steps (retrieval, hooking, unrolling) that are difficult to perform quickly under emergency conditions
Solution Approach 1:
The escape ladder is pre-installed in a compact housing unit positioned near the window, with all components (ladder, hooks, mounting mechanisms) pre-assembled and ready for immediate deployment. This eliminates the need for retrieval and manual assembly steps required by traditional chain ladders, allowing instant deployment by simply activating the release mechanism.
Solution Approach 2:
The escape ladder system is divided into segmented components: a compact housing unit, a collapsible ladder structure, and separate mounting mechanisms. This segmentation allows the ladder to be stored in a space-efficient manner and deployed in a controlled sequence, improving both ease of operation and reducing deployment time compared to a single-piece traditional ladder.
2Loss of time
If a compact housing unit is used to store the escape ladder, then deployment speed is improved, but the device complexity increases due to additional components (housing, mechanical cable system, photovoltaic cell, audio/video device)
Solution Approach 1:
The compact housing unit serves multiple functions: it stores the escape ladder, provides structural mounting support, houses the mechanical cable system for deployment, incorporates a photovoltaic cell for power generation, and includes an audio/video playback device for instructions. By combining these functions into a single integrated unit, the patent reduces overall system complexity compared to having separate components for each function.
Solution Approach 2:
The patent merges the housing structure, mechanical cable system, photovoltaic cell, and audio/video device into a single integrated compact housing unit. This consolidation eliminates the need for separate mounting brackets, power sources, and instruction devices that would otherwise be required, thereby managing device complexity while achieving rapid deployment.
3Productivity
If the escape ladder is pre-installed in a compact housing unit, then rapid deployment is achieved, but the manufacturing and installation complexity increases
Solution Approach 1:
The escape ladder, mechanical cable system, and other components are pre-assembled into the compact housing unit during manufacturing. This preliminary assembly allows for quality control and testing to be performed on the complete deployment mechanism before installation, ensuring rapid deployment capability while managing manufacturing complexity through standardized pre-assembly procedures.
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 deployable safety escape ladder allows for rapid and safe egress from upper floors during emergencies, with the photovoltaic cell providing power, the mechanical cable system ensuring smooth deployment, and the audio/video playback device guiding users through the process.
Implementation Method 1
a photovoltaic cell which is disposed on a face of the outer enclosure
Implementation Method 2
a spring locking pin disposed within the mounting bracket locks the safety grab bar in an upright position during usage
Implementation Method 3
a ladder tray holding a ladder having a plurality of solid rungs and a plurality of chain rails that travel outward along a ladder travel path propelled by a pair of springs
Data Source
AI summary
A deployable safety ladder is retained within a housing having a removable safety pin which when removed causes the deployable ladder and safety pin to separate via a pair of springs. The device further comprises a pivotable grab bar. Use of the grab bar activates a strobe light and audible alarm. The strobe light and audible alarm are each powered by a rechargeable solar powered battery. A fireproof blanket is removably secured within the housing.