Precompressed Sealing Tape With Flexural Rigidity Element
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Solution Overview
Problem
Existing pre-compressed sealing tapes are complex in construction, difficult to handle, and limited to small widths due to the restoring force causing an oval or round shape, which is unsuitable for wider applications and increased sealing requirements for better heat insulation and soundproofing.
Innovation Solution
A pre-compressed sealing tape with an elastically resilient foam strip surrounded by a film-like covering, featuring a strip-shaped element with flexural rigidity to maintain the foam strip's rectangular shape, allowing for easy handling and production in various widths, and a tear tab or protruding end section for simple opening, along with a double-sided adhesive for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the width of the sealing tape is increased to meet higher sealing requirements, then the sealing performance (heat insulation and soundproofing) is improved, but the foam strip deforms into an oval or round shape due to restoring force, making it unsuitable for installation
Solution Approach 1:
A film-like covering completely surrounds the foam strip, maintaining its rectangular cross-sectional shape while allowing the foam strip to expand when the cover is removed. The flexible film constrains the foam during transport and storage, preventing deformation to oval or round shapes even in wider sealing tapes.
Solution Approach 2:
A tearable connection is introduced between the covering and the foam strip, serving as an intermediary mechanism. This allows the covering to be easily removed by tearing after installation, enabling the foam strip to expand and seal the joint effectively without being permanently constrained.
2Shape
If a complex construction with multiple components is used to maintain the foam strip shape, then the shape stability is improved, but the device complexity increases and handling becomes difficult
Solution Approach 1:
The covering is designed to simultaneously perform multiple functions: it maintains the rectangular shape of the foam strip, provides a tearable connection for easy removal, and enables straightforward attachment to the frame profile. This integration of functions into a single component reduces overall device complexity while maintaining shape stability.
3Stability of the object's composition
If the foam strip is pre-compressed in a narrow cover, then the shape stability during transport is improved, but the restoring force causes deformation when the cover is removed, reducing sealing effectiveness
Solution Approach 1:
The film-like covering provides continuous constraint around the foam strip, maintaining its rectangular shape during transport and storage. The flexibility of the film allows it to conform to the foam strip while preventing deformation, ensuring the foam maintains its sealing effectiveness ready for use.
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 enables the production and handling of sealing tapes in larger widths while maintaining the foam strip's compressed shape, facilitating easier installation and improved sealing performance.
Implementation Method 1
an elastically resilient foam strip, which extends further in the longitudinal direction than in the transverse direction
Data Source
Figure 1~2
Figure 3~4
AI summary
The sealing tape has a foam strip (2) comprising two transverse surfaces (8) connected to lateral surfaces (6). A foil-type wrapping (4) surrounds the foam strip, and holds a foam strip in a precompressed state. The transverse surface (8) of the foam strip is pressed against a strip-like element (10) that is arranged inside the wrapping, where the strip-like element provides resistance to bending in a transverse direction. The transverse surface (8) of the foam strip is arranged opposite to the former transverse surface, and is firmly connected to the foil-type wrapping. An independent claim is also included for a method for sealing a joint by a sealing tape.