Fire Collar Element With Adhesive-Free Intumescent Sheath Assembly
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Solution Overview
Problem
Existing fire-protection collars for closing through-passages in walls, ceilings, and floors are inflexible, require many components, and cannot easily adapt to different openings or pipe cross-sections, leading to inefficiencies in installation and protection.
Innovation Solution
A fire-protection collar element with a flexible metal foil sheath and intumescent material lining, allowing for easy adaptation to various openings and pipe sizes, and a robust, adhesive-free connection between the sheath and lining, along with a simple holder system for secure installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fire-protection collars use multiple individual components and complex configurations, then they provide adequate fire protection, but they cannot be flexibly adapted to different openings or pipe cross-sections and require more installation steps
Solution Approach 1:
The patent merges the sheath and lining into a single integrated fire-protection-collar element. The lining is fitted on the inner surface of the sheath, creating a unified component that combines structural support (sheath) and fire protection (lining) functions, eliminating the need for separate assembly of multiple components
Solution Approach 2:
The fire-protection-collar element is designed as a universal solution that can be adapted to various opening sizes and pipe cross-sections. The sheath can be configured in different dimensions and the element can be customized for specific applications, making it suitable for multiple feed-through scenarios
2Ease of manufacture
If traditional fire-protection collars use multiple components, then they provide comprehensive protection, but they increase production costs and manufacturing complexity
Solution Approach 1:
By combining the sheath and lining into one integrated element, the patent reduces the number of manufacturing steps. Instead of producing separate components and assembling them, the merged structure allows for more straightforward production processes and lower manufacturing costs
Solution Approach 2:
While merging the main components, the patent maintains functional segmentation within the integrated element. The lining is positioned on the inner surface of the sheath, creating distinct functional zones (structural outer layer and protective inner layer) that work together in a unified structure
3Reliability
If the sheath and lining are connected using adhesive, then the connection is simple, but the bond may fail under fire conditions or over time
Solution Approach 1:
The patent replaces chemical bonding (adhesive) with mechanical bonding methods. The lining is fitted on the inner surface of the sheath through mechanical interference or friction fit, providing a reliable connection that maintains integrity under fire conditions without relying on adhesive bonds
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 enables straightforward, cost-effective production and flexible adaptation to different openings and pipe sizes, providing enhanced fire and smoke prevention with improved stability and ease of installation.
Implementation Method 1
at least one lining 12 which is made of or comprises an intumescent material
Implementation Method 2
which increases in volume in the event of a fire
Implementation Method 3
The sheath, preferably the foil which forms the sheath, is advantageously bimetallic. In particular the use of two metals of different coefficients of linear expansion is advantageous here
Data Source
Figure 1a~1b
Figure 2a~2c
Figure 3a~3c
AI summary
The present invention relates to a fire-protection-collar element (10) for forming a fire-protection collar (35) for closing through-passages in walls (38), ceilings and/or floors in the event of a fire. The present invention also relates to a method for forming a fire-protection collar (35) for closing through-passages in walls (38), ceilings and/or floors in the event of a fire.