Corner Joint Seal for Adhesive-Free Window Frame Sealing
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Solution Overview
Problem
The existing corner joint systems for fixing sections, such as window and door frames, rely on adhesives for sealing, which lead to uneven distribution, material waste, potential misalignment issues, and operational inefficiencies due to the need for injection machines and risk of contamination.
Innovation Solution
A corner joint design that eliminates the need for adhesives by using a seal with a central annular rib and lateral ribs made of elastic material, compressed between section ends to create a hermetic seal, allowing for easy alignment and installation without the use of adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is injected in higher quantity to ensure uniform distribution along the slot, then sealing reliability is improved, but material waste increases and injection complexity increases
Solution Approach 1:
The patent extracts the sealing function from the adhesive and transfers it to a dedicated sealing element (gasket or seal ring) that is integrated into the corner joint. This sealing element is compressed between the two sections to create the seal, eliminating the need for adhesive injection and ensuring consistent sealing without material waste.
Solution Approach 2:
The patent introduces a sealing element as an intermediary component between the two sections. This sealing element serves as a mediator that performs the sealing function mechanically through compression, replacing the chemical adhesive bonding process and providing reliable sealing with controlled material usage.
2Reliability
If adhesive is used to fix and seal the sections, then sealing is achieved, but the risk of contamination increases and ease of operation decreases
Solution Approach 1:
The patent replaces the chemical adhesive system with a mechanical sealing system. The sealing element is compressed between the two sections to create a hermetic seal through mechanical pressure, eliminating the need for liquid adhesive that could cause contamination and simplifying the assembly process.
3Ease of manufacture
If adhesive injection holes and channels are provided on the corner joint, then adhesive distribution is enabled, but device complexity increases
Solution Approach 1:
The patent extracts the sealing function from the corner joint structure itself and implements it through a separate sealing element. This eliminates the need for complex internal channels and injection holes in the corner joint, simplifying its design while maintaining effective sealing capability through the compressed seal.
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 provides a simple, cost-effective, and efficient method for fixing sections with perfect sealing and alignment, eliminating the drawbacks of adhesive-based systems by using a compressed seal that ensures uniform contact and secure bonding without the need for additional sealing materials.
Implementation Method 1
a seal (5) made of an elastic material, compressed between said ends (21, 21') of the two sections (2, 2'), said seal hermetically sealing the junction (25) between said two ends (21, 21')
Implementation Method 2
a seal (5) made of an elastic material, compressed between said ends (21, 21') of the two sections (2, 2')
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A corner joint (1) for fixing two sections (2, 2') is disclosed; the corner joint (1) comprises a first wing (3) and a second wing (4); each wing (3, 4) is suitable for being inserted in a longitudinal channel (20, 20') of one of the two sections (2, 2'); the corner joint (1) comprises a corner body (P) that connects the two wings (3, 4); the peculiarity of the corner joint (1) according to the invention consists in the fact that it comprises a seal (5) disposed on the corner body (P) of the corner joint (1).