Re-expandable Sealing Tape with Breakable Seams
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sealing tapes for joints, such as window or door frames, face issues with wrapping material remaining on the structure after expansion and are complex to fabricate due to the need for precise application and removal of the wrapping.
Innovation Solution
An elastically expanding sealing tape with a rectangular foam strip held in a compressed state by breakable seams, allowing easy expansion by breaking these seams after attachment to a frame profile, utilizing double-sided adhesive tape and a foil-type covering with sewn-through threads for secure compression and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a wrapping is used to hold the foam strip in the compressed state, then the foam strip can be held in a compressed state, but wrapping material remains on the structure after expansion which is undesirable
Solution Approach 1:
The invention extracts the holding function from a permanent wrapping and implements it through temporary breakable seams. The seams are broken after installation to release the foam strip, completely removing the holding mechanism rather than leaving residue on the structure.
Solution Approach 2:
The breakable seams are designed to be discarded after serving their temporary purpose of holding the foam strip in compression. Once the sealing tape is installed, the seams are broken and discarded, allowing the foam strip to expand without leaving any material residue on the structure.
2Stability of the object's composition
If a wrapping is used to hold the foam strip, then the foam strip can be held in compression, but the fabrication process becomes very complicated
Solution Approach 1:
The invention extracts the complex wrapping application and removal process and replaces it with a simple breakable seam structure. The seams can be easily broken by hand or with simple tools, eliminating the need for complex wrapping application equipment and procedures.
Solution Approach 2:
The breakable seams use simple, inexpensive materials that are easily broken after serving their temporary holding purpose. This disposable approach to the holding mechanism simplifies fabrication compared to creating and later removing a permanent wrapping.
3Stability of the object's composition
If seams are used to hold the foam strip, then the foam strip can be held in compressed state, but the seams must be broken to allow expansion
Solution Approach 1:
The invention extracts the expansion activation from complex mechanisms and implements it through simple breakable seams. The seams can be easily broken by hand, simple tools, or even by the natural expansion force of the foam strip itself, making the operation extremely simple.
Solution Approach 2:
The breakable seams are designed to be broken by the natural expansion force of the foam strip itself or by simple manual action. The system essentially activates itself without requiring complex external mechanisms or procedures to break the seams and allow expansion.
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 allows for efficient expansion of the foam strip without leaving wrapping material on the structure, simplifying the fabrication process and ensuring secure sealing by using breakable seams and a tear-open tab for easy removal of the covering.
Implementation Method 1
an elastically expanding foam strip of rectangular cross section, which, in the compressed state, is completely surrounded by a wrapping
Implementation Method 2
The plastic foil is bonded to itself to form a predetermined tear site. To hold the foam strip in place inside the pocket formed in this way, the strip is bonded to the wrapping, and the wrapping in turn can be attached to a frame profile by means of separate adhesive means, such as double-sided adhesive tape.
Data Source
AI summary
The elastically re-expandable sealing tape for sealing a joint includes an elastically expanding foam strip of rectangular cross-section which is held in a compressed state. This is accomplished by means of at least one releasable seam, which extends across the sealing tape and consists of at least one thread, which passes through the foam strip.