Cover Strip With Integrated Sealing Flap for Wall Transitions
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Solution Overview
Problem
Existing cover strips for attaching to built-in parts at the transition to adjacent walls or plaster areas are complicated to manufacture and install, and they often fail to ensure long-term tightness during relative movements between the wall and the built-in part.
Innovation Solution
A cover strip system featuring a flexible sealing flap with a permanently elastic adhesive bead, integrated into a cover profile with a protective lip, which provides two sealing levels: one through the cover profile contacting the wall or plaster area and another through the adhesive bead, ensuring long-term tightness with a simple installation method involving in-situ foam and adhesive tapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing strip with two separate foam sealing strips and a flexible carrier is used, then sealing capability is improved, but handling complexity and device complexity increase
Solution Approach 1:
The sealing function is segmented into two independent levels: the cover profile provides first-level sealing by contacting the wall or plaster area, while the integrated sealing strip with adhesive bead provides second-level sealing. This segmentation allows each component to be optimized independently and simplifies the overall system structure compared to complex multi-strip configurations.
Solution Approach 2:
The sealing strip is integrated directly into the cover profile, merging the sealing function with the covering function. The adhesive bead is permanently attached to the sealing tab which is itself attached to the cover profile, creating a unified component that reduces handling complexity while maintaining dual-level sealing capability.
2Reliability
If a joint seal with adhesive bead and bracket is used, then sealing is achieved, but manufacturing and installation complexity increase
Solution Approach 1:
The sealing tab is integrated directly into the cover profile, eliminating the need for separate brackets and multiple adhesive applications. The adhesive bead is permanently attached to the sealing tab during manufacturing, creating a pre-assembled unit that simplifies both manufacturing and installation processes while maintaining effective sealing.
Solution Approach 2:
The adhesive bead is pre-applied to the sealing tab during manufacturing, and the sealing tab is pre-attached to the cover profile. This preliminary preparation eliminates the need for complex on-site assembly operations, reducing installation complexity while ensuring proper sealing effectiveness.
3Reliability
If the sealing strip is exposed on the visible side, then sealing function is visible, but aesthetic appearance deteriorates
Solution Approach 1:
The sealing tab with adhesive bead is nested within or behind the cover profile on the visible side. The cover profile acts as a protective and aesthetic cover that conceals the functional sealing components while maintaining their sealing effectiveness. This nesting arrangement ensures the sealing function remains intact while achieving a clean, aesthetic appearance.
Solution Approach 2:
The cover profile is designed with different functional zones: a visible front portion that provides aesthetic appearance and conceals the sealing components, and a functional rear portion that contacts the wall and houses the sealing tab. This local differentiation allows the same component to satisfy both aesthetic and functional requirements simultaneously.
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 system allows for easy and cost-effective installation while maintaining long-term sealing efficacy even with relative movements, as the flexible sealing flap and adhesive bead compensate for changes in distance between the built-in part and the wall, ensuring a durable and aesthetically pleasing seal.
Implementation Method 1
a permanently elastic bead of adhesive (15) for fixing the sealing tab (12) to the adjacent wall or plaster area (2)
Implementation Method 2
a permanently elastic bead of adhesive (15) for fixing the sealing tab (12) to the adjacent wall or plaster area (2)
Implementation Method 3
the gap to an adjoining wall or plaster area being foamed with in-situ foam, for example polyurethane foam
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
The invention relates to a cover strip (10) for attachment to a built-in component (1), for example a window or door frame, at the transition to an adjacent wall or plaster area (2), with a cover profile (11) that can be attached to the built-in component (1). According to the invention, the cover strip (10) has an integrated sealing system with a flexible sealing tab (12) which is attached to the cover profile (11) at a first edge region (13) in the longitudinal direction of the cover strip (10) and has a permanently elastic adhesive bead (15) at the second, free edge region (14) for fixing it to the adjacent wall or plaster area (2).