Adjustable Roof Safety Device for Firefighter Stability
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Solution Overview
Problem
Firefighters face balance and stability issues while ventilating roofs due to inadequate anchoring systems, such as small surface areas provided by pick head axes and the need for lateral reach from a roof ladder, which increases the risk of slips and falls.
Innovation Solution
A safety device with a foothold and adjustable mounting assembly, including support and grip subassemblies, that can be securely installed on a roof, providing adjustable stability and an additional securing mechanism to prevent falls, comprising a foothold with an adjustable rail system and arcuate grip members for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pick head axe is used as an anchoring device, then the device is portable and can be installed on the roof, but the surface area is too small to maintain proper balance and support
Solution Approach 1:
The anchoring device is divided into multiple components: a base plate for installation on the roof, a vertical support member, and a horizontal rail assembly with footholds. This segmentation allows each component to serve its specific function while collectively providing sufficient surface area for balance and support.
Solution Approach 2:
The device transitions from a single-point anchoring (pick head axe) to a multi-dimensional structure with vertical and horizontal elements. The vertical support member and horizontal rail create a three-dimensional framework that provides both compact installation and adequate surface area for firefighter stability.
2Ease of operation
If a roof ladder is used for ventilation, then the firefighter can access the roof, but the firefighter must reach laterally from the ladder which causes poor balance
Solution Approach 1:
The device serves as an intermediary between the roof ladder and the firefighter's operating position. It provides a stable platform with footholds and handholds that allows the firefighter to transition from the ladder to a balanced standing position without requiring lateral reaching movements.
Solution Approach 2:
The device includes adjustable components such as movable footholds and adaptable mounting mechanisms that can be positioned to match the specific roof geometry and the firefighter's operational needs, dynamically optimizing stability for each situation.
3Stability of the object's composition
If a secure anchoring system is installed on the roof, then firefighter stability is improved, but the device becomes more complex and harder to install
Solution Approach 1:
The anchoring system is divided into modular components including a base plate, vertical support, and horizontal rail assembly that can be installed separately and then assembled. This segmentation simplifies the installation process while maintaining the structural integrity and stability provided by the complete assembly.
Solution Approach 2:
The device incorporates self-aligning features, friction-fit connections, and intuitive assembly mechanisms that allow the components to self-position and secure themselves during installation, reducing the skill level and time required for proper installation while ensuring stable assembly.
Data Source
AI summary
A safety device comprising a foothold in association with a mounting assembly, wherein the position of the foothold relative to the mounting assembly is adjustable, thereby allowing the safety device to be used on a variety of sloped roofs. The safety device may further comprises a firefighter securing assembly which provides a means whereby an operator may secure himself to the safety device thereby preventing the operator from falling from the roof in the event the operator loses his balance.