Profile Composite Hook Joint With Prestressed Metallic Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing profile composites are not inherently watertight and gas-tight without additional sealants, and they lack sufficient transverse strength, especially under dynamic stress.
Innovation Solution
A method for producing a profile composite where the hook strip is supported on two facing walls within the anchoring channel, allowing for high prestressing forces that create a metallic seal and enhance transverse strength by enabling elastic deformation without cracking, using a two-point support system that maintains pretension and prevents relaxation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hook projection is not supported within the anchoring channel, then the profile assembly allows for elastic deformation under transverse loads, but the connection lacks sufficient transverse strength and becomes prone to cracking under dynamic stress
Solution Approach 1:
The patent applies local quality by providing support only at specific locations within the anchoring channel. The hook strip is supported at its free end and at the engagement region with the hook projection, creating localized support zones that allow elastic deformation in intermediate regions while maintaining strength at critical points. This selective support strategy resolves the contradiction between adaptability and strength.
2Reliability
If additional sealant is introduced into the profile assembly, then gas-tightness and watertightness are achieved, but the device complexity and manufacturing steps increase
Solution Approach 1:
The patent implements self-service by designing the hook strip and anchoring channel geometry to automatically create a tight seal through the cold joining process itself. The deformation of the hook strip during insertion into the anchoring channel generates sufficient contact pressure between the mating surfaces to prevent gas and water penetration, eliminating the need for separate sealing components or materials.
Solution Approach 2:
The patent extracts the sealing function from the overall connection system by integrating it directly into the mechanical joining mechanism. Instead of adding a separate sealing element, the sealing action is derived from the essential cold joining process, where the hook strip deformation inherently creates the seal.
3Strength
If high prestressing force is applied during cold joining, then a metallic seal is created and transverse strength is improved, but the hook strip may deform permanently or the profiles may be damaged
Solution Approach 1:
The patent applies preliminary action by providing support for the hook strip before the final high-force pressing operation. The support structure, including the support element in the anchoring channel and the support on the outer surface, is prepared in advance to bear the load during the cold joining process, preventing permanent deformation while enabling the application of sufficient prestressing force for the metallic 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 profile composite achieves gas-tight and watertight seals without additional sealing materials and improves transverse strength by allowing elastic deformation under tensile or compressive loads, reducing the risk of cracking and noise issues.
Implementation Method 1
Through a cold joining process, the hook projection of the second profile's hook strip is bent into the undercut provided by the anchoring channel
Implementation Method 2
this zone can react by elongating to a certain extent without impairing the profile connection and without the risk of cracking
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
In a profile assembly (10) having a first profile (1) and having a second profile (2) connected on its long side to the first profile (1), which two profiles (1, 2) each have a hook strip (5, 8) integrally formed on the long side, wherein the hook projection (14) of the hook strip (5) of the first profile (1) points in the one direction, and the hook projection (15) of the hook strip (8) of the second profile (2) points in the opposite direction, the hook strips (5, 8) are brought into engagement with one another in a claw-like manner. The first profile (1) has an anchoring channel (7) following its longitudinal extent, and the hook strip (8) of the second profile (2) has a clamping strip (9) which is integrally formed thereon, which hook strip (8) is secured by its hook projection (15) and its clamping strip (9) in the anchoring channel (7) of the other profile (1) by means of a cold-joining connection. In order to produce the cold-joining connection, one of the two hook strips (8) comprises an adjusting strip (9) which is formed by the cold-joining process and which is supported in the produced profile assembly (10) by its free end face (18) while being under prestress. The hook strip (8) secured in the anchoring channel (7) is placed under prestress within the anchoring channel (7), at two points situated opposite one another in the direction of the height of the profile assembly (10), with respect to the adjoining portions of the first profile (1) as a result of the cold-joining connection.