Sealing Strip with Heavy Material for Soundproofing
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Solution Overview
Problem
Existing sealing strips for joints between frame profiles and walls lack effective soundproofing and handling ease, particularly with wide joints, leading to potential misalignment and reduced airtightness/watertightness due to delayed recovery and improper attachment of foam strips.
Innovation Solution
A sealing strip with an additional strip containing heavy material fractions, extending longitudinally, which enhances soundproofing by increasing the material density and facilitates easier handling due to increased weight, allowing for precise alignment and attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a foam sealing strip is used for sealing joints, then it provides good flexibility and ease of installation, but it has poor soundproofing properties
Solution Approach 1:
The sealing strip combines foam material with an additional strip containing heavy material fractions (specific gravity ≥1.4 g/cm³), creating a composite structure that leverages the flexibility and compressibility of foam while adding the sound-blocking properties of dense material. This composite design resolves the contradiction by integrating two materials with complementary properties.
Solution Approach 2:
The additional strip with heavy material is positioned specifically within the sealing strip structure to target soundproofing at the joint interface, while the foam material continues to provide the bulk sealing and flexibility. This localized enhancement of material properties where needed solves the soundproofing deficiency without compromising overall installation ease.
2Reliability
If the sealing strip is made with delayed recovery foam for better sealing, then it maintains shape during installation, but it takes time to return to original shape causing handling delays
Solution Approach 1:
The sealing strip is divided into functional segments: the foam portion provides delayed recovery for reliable sealing, while the separate additional strip with heavy material provides immediate weight-based handling control. This segmentation allows each component to optimize its function without compromising the other.
Solution Approach 2:
The addition of heavy material fractions changes the density and weight parameters of the sealing strip, creating sufficient weight to overcome the delayed recovery effect during handling. This parameter modification enables the installer to control and position the strip accurately despite the foam's slow shape recovery.
3Ease of operation
If the sealing strip is made lighter for easier handling, then it is more maneuverable, but it cannot effectively resist sound transmission
Solution Approach 1:
The combination of lightweight foam material with a concentrated additional strip containing heavy material fractions creates an optimized weight distribution. The overall strip remains manageable while the localized heavy material provides effective sound blocking, resolving the contradiction between weight and soundproofing performance.
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 strip achieves improved soundproofing and easier handling, reducing the risk of misalignment and ensuring airtightness/watertightness by quickly returning to its original shape, thus simplifying the installation process and ensuring precise attachment.
Implementation Method 1
the material of the additional strip containing heavy material and, if necessary, when foam strips and additional strips are connected, e.g. by gluing, the adjacent areas of the foam strip , can only be made to oscillate with difficulty by the sound
Implementation Method 2
the sealing strip according to the invention with heavy material fractions in the additional strip, especially if this is impregnated or otherwise treated for delayed recovery, returns more quickly to its original shape... This is attributed in each case to the increased weight of the additional strip, which as it were presses down the sealing strip as a whole under the influence of gravity
Implementation Method 3
a compressible and resilient, preferably delayed resilient, foam strip... when the sealing strip is made up in a form, for example as a roll, which differs from the installation shape of the sealing strip in the joint or on the frame profile... the sealing strip is only converted into its desired shape with a certain time delay
Data Source
AI summary
The invention relates to a sealing strip for sealing a joint between a frame profile, such as a window frame profile, and a wall, comprising a compressible and resilient, preferably delayed-recovery, foam strip, wherein the sealing strip has two opposite broad sides, each of which can be applied to a contact surface of the frame and wall, and two opposite narrow sides extending transversely to the broad sides. To provide an improved sealing strip, the sealing strip includes at least one additional strip, which consists at least partially of a material containing heavy elements. (Fig. 1a)