Cover Strip With Movable Sealing Tab For Wall Joints
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Solution Overview
Problem
Existing cover strips for attaching to built-in parts like window or door frames at the transition to adjacent walls or plaster areas are complicated to manufacture and install, and they often fail to ensure long-term tightness, especially during relative movements between the wall and the built-in part.
Innovation Solution
A cover strip with a movably guided sealing tab in a U-shaped receptacle, featuring a foot area with a permanently elastic adhesive bead for attachment, a flexible intermediate area, and an end guide area, which allows for easy installation and retention of the sealing function through tightly fitting guide surfaces.
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 divided into two separate foam sealing strips that can be independently triggered, allowing each strip to seal against a different joint flank independently. This segmentation improves sealing reliability while maintaining manageable complexity through modular design
Solution Approach 2:
The sealing strips are designed to be triggered from a compressed state independently of one another, allowing dynamic adaptation to different joint conditions. This dynamic triggering mechanism improves sealing capability while keeping the system manageable through independent activation
2Reliability
If a sealing strip with separable film and pull strips is used, then sealing effect is improved, but manufacture and handling complexity increase
Solution Approach 1:
The sealing function is extracted from a complex separable film system and implemented through simpler foam sealing strips that expand independently. This extraction eliminates the need for separable films and pull strips, improving sealing effect while simplifying manufacture and handling
3Reliability
If a chamber profile with slit-shaped partition and all-round vapour-tight seal is used, then sealing capability is improved, but installation complexity and cost increase
Solution Approach 1:
The rigid chamber profile with slit-shaped partition is replaced by flexible foam sealing strips that can deform and adapt to the joint geometry. This provides equivalent sealing capability while dramatically simplifying installation and reducing cost through easier handling
4Ease of operation
If a cover strip with integrated sealing system and permanently elastic adhesive bead is used, then ease of attachment is improved, but adaptability to relative movements may be reduced
Solution Approach 1:
The cover strip combines rigid cover profile for structural support with permanently elastic adhesive bead for attachment and foam sealing strips for sealing. This composite structure provides ease of attachment through the adhesive bead while maintaining adaptability to relative movements through the flexible foam sealing elements
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
Facilitates precise and easy attachment of the adhesive bead, ensuring long-term tightness and flexibility to absorb component movements, while maintaining a clean and elegant design.
Implementation Method 1
with a permanently elastic adhesive bead on a first edge region in the longitudinal direction of the cover strip for fixing to the adjoining wall or plaster area
Implementation Method 2
The sealing tab (12) protrudes with a second edge area (14) into a U-shaped receptacle (20) of the cover profile (11) and is movably guided in the longitudinal direction of the profile and in the direction of a variable distance from the wall or plaster area (2)
Data Source
Figure 1~2
Figure 3~6
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, existing wall or plaster area (2), with a cover profile (11) that can be attached to the built-in component (1), wherein the cover strip (10) has an integrated sealing system with a sealing tab (12) which has a permanently elastic adhesive bead (15) at a first edge region (13) in the longitudinal direction of the cover strip (10) for fixing it to the adjacent wall or plaster area (2). According to the invention, the sealing tab (12) is movably guided with a second edge region (14) in a U-shaped receptacle (20) of the cover profile (11).