Horizontally Hinged Fire Shutter with Insulating Core
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Solution Overview
Problem
Conventional fire shutters are inadequate in addressing the threat of bushfires, as they conduct heat during fires, offer little protection when not in use, and are unsightly when stored, while existing window solutions fail to provide effective thermal insulation and security.
Innovation Solution
A horizontally hinged, vertically opening fire shutter with a thermally insulating core and a hard outer casing, utilizing materials like phenolic foam, composite fibre technology, and intumescent coatings, which can be configured as an awning and quickly closed in response to fire conditions using mechanical fusible links and gas struts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional metal shutters are used to cover windows, then fire protection is improved, but thermal insulation deteriorates because metal conducts heat during fires
Solution Approach 1:
The shutter panel is constructed as a composite structure with a metal skin (for fire resistance and strength) and a thermally insulating core material (such as foam or air gaps). This composite construction allows the shutter to maintain fire protection while reducing heat conduction, thereby resolving the contradiction between fire reliability and thermal insulation.
2Reliability
If shutters are stored on the sides of the window or rolled into a roller assembly, then fire protection function is maintained, but aesthetic appearance deteriorates when not in use
Solution Approach 1:
The shutter is designed to serve multiple functions: it provides fire protection when closed, acts as an aesthetic architectural element when positioned in front of the window, and can function as an awning when extended outward. This multi-functionality resolves the contradiction by eliminating the need for separate storage mechanisms, thereby maintaining both functionality and appearance.
3Reliability
If shutters cover the window completely, then fire protection is improved, but usability deteriorates because they have little or no use when not protecting from fire
Solution Approach 1:
The shutter is designed with dynamic positioning capabilities, allowing it to be adjusted to different positions: fully closed for fire protection, partially open for ventilation or viewing, or extended outward as an awning for sun or rain protection. This dynamic adaptability resolves the contradiction by enabling the shutter to serve multiple purposes beyond fire protection.
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 solution provides enhanced fire resistance, thermal insulation, and security, while being aesthetically pleasing and functional, meeting stringent fire safety ratings and allowing for multi-purpose use as an awning and window covering.
Implementation Method 1
at least one fire resistant panel having an insulating core
Implementation Method 2
intumescent coatings
Data Source
AI summary
A fire shutter for protecting an opening 10, such as a window 12, having one or more (typically two) fire resistant panels 20 and 21. The panels are hinged along a horizontal portion of the opening such that at least one of the panels can be utilized as an awning when open. The panel(s) have an insulating core that typically provides thermal insulation from the elements and increases fire resistance from fires (such as bushfires) to provide a fire rated shutter that meets the highest building fire standards.