Resilient Glazing Bead Profile for Building Openings
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Solution Overview
Problem
The use of glazing beads with hollow chamber profiles is problematic due to narrow outer profiles, which require high pressure to maintain a seal across temperature fluctuations, risking damage to the connection between the wing miter and profile cross-sections.
Innovation Solution
A closure element design featuring a resilient profile web that deforms to absorb changes in length, allowing for a sealing engagement with the glass element while maintaining a predefinable gap size, and an optional spreading element for enhanced prestressing in corner areas, preventing detachment and miter opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high pressure is applied to maintain the seal between glazing bead and hollow chamber profile across temperature fluctuations, then the sealing reliability is improved, but the connection between the wing miter and profile cross-sections is damaged
Solution Approach 1:
The invention changes the physical state of the profile web from rigid to resilient, allowing it to deform elastically under pressure. This enables the sealing interface to accommodate pressure variations without damaging the structural connection, as the resilient web can compress and rebound dynamically rather than transmitting rigid forces to the miter connection.
Solution Approach 2:
The resilient profile web acts as a pre-designed cushioning element between the glazing bead and the hollow chamber profile. It absorbs and dissipates the mechanical stress from temperature-induced expansion and contraction before these forces can reach the vulnerable miter connection, thereby protecting the structural integrity while maintaining sealing reliability.
2Ease of operation
If the hollow chamber profile is made narrow to accommodate the rebate formation in the stop area, then the ease of operation is improved, but the device complexity increases due to the need for resilient profile webs and spreading elements
Solution Approach 1:
The invention merges the sealing function and the structural support function into a single integrated hollow chamber profile design. The resilient profile web is incorporated as an intrinsic part of the profile structure itself rather than as a separate component, and the spreading element is integrated into the corner regions of the same profile, thereby maintaining ease of operation while managing complexity through functional integration.
Solution Approach 2:
The hollow chamber profile is designed to perform multiple functions simultaneously: it provides the structural framework, incorporates the resilient sealing web, and includes integrated spreading elements at the corners. This multi-functional design eliminates the need for separate components, thereby maintaining ease of operation while the complexity is managed through unified design rather than assembly of multiple parts.
3Reliability
If the glazing bead is pressed against the glass element with high pressure to form a seal, then the sealing reliability is improved, but the detachment resistance decreases at sub-zero temperatures
Solution Approach 1:
The invention introduces dynamic adaptability through the resilient profile web that can adjust its compression level in response to temperature changes. At sub-zero temperatures, the web maintains optimal pressure through its elastic recovery, dynamically adapting to thermal contraction rather than relying on fixed high pressure, thereby maintaining both sealing reliability and detachment resistance across varying conditions.
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 design ensures a secure attachment of the glazing bead to the glass element across temperature changes without damaging the connection, maintaining a seal and preventing unintended detachment, even at sub-zero temperatures.
Implementation Method 1
a resilient profile web which is pushed into a groove of the first profile part and is pressed via the second connecting element against the first connecting element of the first profile part
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a closure element (1) for a building opening, comprising a glass element (4) held by a frame formed from several hollow chamber profiles (6 to 9), wherein the hollow chamber profiles (6 to 9) each have a first profile part (10) in which a glass rebate (12) for receiving the glass element (4) is formed, and a second profile part (11) which is designed as a glass retaining strip, and wherein the second profile part (11) is connected to the first profile part (10) on an outer side (16) of the closure element, for which purpose the first profile part (10) has a first connecting element (17) which interacts with a second connecting element (18) of the second profile part (11), and wherein the second profile part (11) has a support web (21) which abuts the first profile part (10) in the area of the glass rebate (12).