Fire Closure Supplementary Profile for Enhanced Sealing
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Solution Overview
Problem
Existing fire protection closures often fail to meet increasingly stringent fire protection standards due to design limitations, particularly in the frame and sealing configurations, leading to lower fire protection classifications and aesthetic or operational issues with thick, cumbersome doors.
Innovation Solution
The addition of supplementary profiles on the hinge bar, lock bar, and head bar reduces the clear passage area, increasing the overlap between the door body and frame, enhancing sealing and thermal stability, and allowing for improved fire resistance without replacing essential components, which can be integrated as a retrofit kit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door body is strengthened to improve fire protection class, then fire resistance is improved, but the door becomes thick and cumbersome, reducing ease of operation and aesthetic appeal
Solution Approach 1:
The fire protection system is segmented into two parts: the original door body (maintained for aesthetics and operation) and an additional fire protection profile attached to the frame. This segmentation allows the door body to remain thin and operable while the separate profile provides enhanced fire resistance through increased overlap with the door body.
2Reliability
If thicker door bodies are used to achieve higher fire protection ratings, then fire resistance is improved, but material cost and device complexity increase
Solution Approach 1:
The fire protection enhancement is extracted from the door body itself and placed in a separate additional profile attached to the frame. This extraction allows the original door body to remain simple and aesthetic, while the separate profile provides the necessary fire protection through increased overlap area without complicating the door body design.
3Reliability
If existing fire barriers are upgraded to meet new standards, then fire protection class is improved, but replacement of essential components is required, increasing cost and complexity
Solution Approach 1:
The additional fire protection profile is designed to be attached to the existing frame in advance, creating a pre-assembled upgrade solution. This preliminary action allows existing fire barriers to be upgraded to meet new standards by simply attaching the additional profile, without requiring replacement of essential components like the door body or frame.
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
This solution significantly enhances the fire protection value of existing systems by increasing the overlap area and improving sealing, allowing for better compliance with stricter fire protection standards while maintaining operational ease and aesthetic appeal.
Implementation Method 1
an additional profile is arranged on the hinge bar, the lock bar and/or the head bar, as a result of which the dense passage area of the frame is reduced
Implementation Method 2
the frame, which has been expanded to include the supplementary profile, and the door body can mutually cool down and stabilize in the event of a fire, which reduces the temperature load in the corner areas
Implementation Method 3
The extended overlap area also enables improved sealing between the door body and frame, so that the passage of flames and/or smoke gases can be further reduced
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
The invention relates to a fire barrier comprising an opening (2) arranged in a wall (1, 1'), a frame (3) at least partially surrounding the opening (2), and a movable door body (4) for closing the opening (2). The frame (3) has a hinge pin (3a) and a lock pin (3b) arranged laterally to the opening (2), as well as a head member (3c) arranged above the opening (2) and connecting the hinge pin to the lock pin. The frame has a clear passage area with a clear passage width (b) and a clear passage height (h). According to the invention, a supplementary profile (8, 8', 8") is arranged on the hinge pin (3a), the lock pin (3b), and/or the head member (3c), thereby reducing the clear passage area of the frame (3).