Profiled Sealing Tape with Compressed Foam for Contact Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sealing tapes struggle to achieve higher contact pressure on the building wall's side flanks while minimizing waste and production costs, and maintaining even sealing performance across different height profiles.
Innovation Solution
A sealing tape with a base body made of soft, compressible foam, featuring a profile with varying heights on the side flanks and a lower third height in the middle area, achieved through permanent compression and fusion of the foam, and enhanced with a continuous blocking structure to reduce water vapor diffusion and air permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If V-shaped incisions are made in foam carrier and barrier layers are inserted, then contact pressure distribution is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent removes the barrier layer from the central region of the sealing tape, extracting only the necessary components (adhesive layer and foam carrier) while eliminating redundant elements. This simplifies the overall structure while maintaining sealing functionality through the profiled design of the foam carrier itself.
Solution Approach 2:
The foam carrier is designed with varying thickness across different regions: thicker at the sides for higher contact pressure and thinner in the center for lower contact pressure. This local variation in material distribution optimizes pressure distribution without requiring additional barrier layers in each region.
2Stress or pressure
If varying height profile is created through permanent compression and fusion, then contact pressure on side flanks is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes permanent compression and fusion processes to alter the physical parameters of the foam carrier, creating a lasting height profile with different thicknesses in different regions. This changes the geometric parameters of the foam to achieve the desired pressure distribution.
Solution Approach 2:
The height profile is pre-formed during the manufacturing process through compression and fusion before the sealing tape is installed. This preliminary shaping ensures that the correct pressure distribution is achieved from the start, eliminating the need for post-installation adjustments.
3Reliability
If continuous barrier structure is added, then sealing performance against water vapor and air is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines the barrier function with the foam carrier structure itself, integrating these two functions into a single component. The foam carrier serves both as the structural element that provides pressure distribution and as the barrier against water vapor and air, eliminating the need for separate barrier layers.
Solution Approach 2:
The foam carrier is designed to perform multiple functions simultaneously: providing mechanical support, distributing contact pressure, and acting as a barrier against water vapor and air. This multi-functionality reduces the overall number of components needed in the sealing tape.
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 sealing tape achieves higher contact pressure on the side flanks compared to the center area, while being cost-effective, minimally wasteful, and providing enhanced sealing performance against air and water vapor.
Implementation Method 1
at least one base body made of soft foam that recovers after compression
Implementation Method 2
The lower third height in the fully expanded state of the sealing strip is achieved at least partially by permanent compression and/or fusion of the foam of the at least one base body
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The sealing tape (2) has a base body (4) made of soft, compressible foam. An adhesive layer (12) is provided on the underside (6) of the sealing tape for adhesion to a component (14), in particular a frame profile of a window or door. The top side (6) of the sealing tape has a profile with at least one depression (16) such that, in a fully expanded state, the sealing tape has a first height (h1) in the area of the first side flank (10), a second height (h2) in the area of the second side flank (10), and a third height (h3) in an area between the first and second side flanks (10), which is less than the first and second heights (h1, h2). The interior of the depression (16) is filled exclusively with air when the sealing tape is fully expanded.The lower third height (h3) is achieved at least partially in the fully expanded state of the sealing tape by permanent compression and/or fusion of the material of the at least one base body (4).