Rolling Shutter Door Sealing Assembly for Acoustic Gap Control
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Solution Overview
Problem
Existing door assemblies with rolling shutter doors suffer from gaps that allow sound, smoke, and heat leakage, compromising their insulating performance, particularly in acoustically and thermally insulated door assemblies.
Innovation Solution
A resiliently deformable member and sealing member cooperate to form a seal when the rolling shutter door is closed, allowing free movement between open and closed positions, using resiliently deformable sheets and complementary sealing members to mitigate sound and heat transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gap is provided between the rolling shutter door, the opening, and the building surface to accommodate the changing roll size, then the door can move freely between open and closed positions, but sound, smoke, heat and other elements can leak through the gap
Solution Approach 1:
The patent employs a flexible sealing assembly comprising a resiliently deformable member and a sealing member that can adapt to the gap's changing dimensions. The resiliently deformable member deforms to follow the contour of the rolling shutter door as it moves, while the sealing member provides the actual sealing barrier. This flexible membrane approach allows the seal to accommodate the door's movement between open and closed positions while maintaining effective sealing against sound, smoke, and heat leakage.
Solution Approach 2:
The sealing assembly is designed to be dynamic rather than static, with the resiliently deformable member capable of changing shape and the sealing member positioned to engage with it during door movement. The assembly transitions between different configurations as the door moves, maintaining sealing effectiveness throughout the range of motion. This dynamic adaptation resolves the contradiction by allowing both free door movement and continuous sealing.
2Object-affected harmful factors
If a sealing assembly is added to prevent sound and heat leakage through the gap, then insulating performance is improved, but the complexity of the door assembly increases
Solution Approach 1:
The sealing assembly is divided into distinct functional components: a resiliently deformable member that adapts to the gap geometry and a sealing member that provides the actual barrier. This segmentation allows each component to be optimized for its specific function while keeping the overall structure manageable. The resiliently deformable member handles the adaptation to movement, while the sealing member focuses on providing the insulating barrier, thereby improving insulating performance without excessive complexity.
Solution Approach 2:
The resiliently deformable member acts as an intermediary between the stationary gap and the moving sealing member. It absorbs the complexity of adapting to the changing gap dimensions caused by door movement, while the sealing member maintains a relatively simple structure focused on providing the sealing barrier. This intermediary approach improves insulating performance by ensuring consistent contact while managing structural complexity through functional division.
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 enhances the insulating performance of rolling shutter doors by providing a tight seal that prevents sound and heat leakage, maintaining acoustic and thermal insulation without hindering door movement.
Implementation Method 1
a resiliently deformable member and a sealing member, each mutually positioned such that the resiliently deformable member and the sealing member co-operate to seal the gap
Data Source
Figure 1
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AI summary
A door assembly, for an opening in a building, comprising a sealing assembly, wherein the sealing assembly is configured to seal a gap (36) between the rolling shutter door (4), the opening, and a surface of the building proximal the opening. The seal comprises a resiliently deformable member (48), and a sealing member (46), mutually positioned such that the resiliently deformable member co-operates with the sealing member when the rolling shutter door is in the closed position to seal the gap, which prevents or mitigates passage of sound, smoke, heat, and the like through the gap. The door assembly is preferably an acoustically-insulating door assembly.