Sealing Device Retaining Profile Mechanical Interlock
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Solution Overview
Problem
Existing door and window sealing devices face challenges in simple assembly and maintaining optimal sealing performance over time, particularly in preventing displacement of sealing profiles which can lead to reduced effectiveness against driving rain.
Innovation Solution
A sealing device with a holding profile that connects to the sealing profile using mechanical means, such as positive and non-positive connecting elements, preventing displacement along the longitudinal axis, allowing for easy assembly without adhesives and ensuring the sealing profile remains fixed in position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesives are used to connect the sealing profile to the retaining profile, then the connection strength is improved, but the assembly time increases and handling becomes more difficult
Solution Approach 1:
The patent replaces the chemical bonding system (adhesives) with a mechanical fastening system consisting of a retaining element with a receptacle that mechanically engages with the sealing profile. This substitution eliminates the need for adhesives while providing secure connection through positive mechanical interlocking, thereby reducing assembly time and simplifying handling.
Solution Approach 2:
The patent extracts and eliminates the adhesive component from the assembly system. By designing a self-contained mechanical retention system where the retaining profile's receptacle directly engages with the sealing profile, the solution removes the need for separate adhesive application, waiting, and curing processes.
2Strength
If adhesives are used to connect the sealing profile to the retaining profile, then the connection strength is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent replaces the chemical bonding system (adhesives) with a mechanical fastening system consisting of a retaining element with a receptacle that mechanically engages with the sealing profile. This substitution eliminates the need for adhesives while providing secure connection through positive mechanical interlocking, thereby reducing assembly time and simplifying handling.
3Adaptability or versatility
If the sealing profile is allowed to displace longitudinally, then the adjustability is improved, but the sealing reliability deteriorates
Solution Approach 1:
The patent segments the sealing system into distinct functional components: a support rail allowing longitudinal movement, a sealing profile for sealing, and a retaining profile with receptacle for positional fixation. This segmentation enables the sealing profile to be adjusted along the support rail during installation, then securely fixed in the optimal position by the retaining element, achieving both adjustability and long-term positional stability.
Data Source
Figure 1~2
Figure 3~5
Figure 6a~7b
AI summary
A sealing device for a door or window comprises a housing rail (1) and a sealing strip arranged in the housing rail, with a support rail (2), a sealing profile (3), and a retaining profile (7). The sealing profile (3) is held in or on the support rail (2) and can be connected to the retaining profile (7). The retaining profile (7) has a receptacle (73) for connection with the sealing profile (3), the receptacle (73) being designed such that, after connection is established, displacement of the sealing profile (3) is prevented at least in one direction (R) extending along a longitudinal axis (L) of the sealing device. The sealing device according to the invention enables simple, time-saving, and adhesive-free attachment of a retaining profile (7), which, for example, allows for on-site adjustment of the sealing device.