Vehicle Door Sealing Profile With Controlled Adhesive Activation
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Solution Overview
Problem
Existing sealing profiles for vehicle doors face challenges in achieving stable and impermeable attachment to the vehicle body during production and assembly, with existing methods being inefficient and prone to premature adhesive curing.
Innovation Solution
Incorporating a multi-component adhesive with spatially separated components into the fastening section of the sealing profile, which is activated upon mixing, and using hollow chambers with controlled outlet openings to ensure precise and controlled adhesion, preventing premature curing and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is provided in the fastening section, then attachment stability and impermeability are improved, but risk of premature curing and contamination increases
Solution Approach 1:
The adhesive system is segmented into separate components (adhesive and hardener) stored in distinct hollow chambers within the fastening section. This segmentation prevents premature mixing and curing while allowing controlled activation when needed for attachment.
Solution Approach 2:
The adhesive components are pre-positioned in hollow chambers during extrusion, prepared for activation but not yet activated. This preliminary positioning allows the adhesive to be ready for use while protected from premature curing until the fastening section is attached to the vehicle body.
2Reliability
If multi-component adhesive with spatially separated components is used, then control over activation timing is improved, but device complexity increases
Solution Approach 1:
Multiple hollow chambers containing different adhesive components are merged into a single integrated fastening section during extrusion. This combining approach provides precise control over activation timing while avoiding the complexity of separate application systems.
Solution Approach 2:
The hollow chambers containing adhesive components are nested within the fastening section structure itself. This nesting integrates the adhesive delivery system into the existing component geometry, controlling activation timing without adding external complexity.
3Ease of manufacture
If hollow chambers with controlled outlet openings are used, then adhesive release control is improved, but manufacturing complexity increases
Solution Approach 1:
The outlet openings in the hollow chambers are designed to respond dynamically to assembly conditions. The openings remain closed during storage and transport, then automatically open or allow controlled release when the fastening section is attached to the vehicle body, providing adhesive release control without complex actuation mechanisms.
4Reliability
If adhesive is protected in hollow chambers, then prevention of premature curing and contamination is improved, but ease of adhesive release may be reduced
Solution Approach 1:
The hollow chambers are pre-configured with outlet openings positioned to align with the application surface during assembly. This preliminary positioning ensures that when the fastening section is attached, adhesive release is automatically facilitated without requiring additional manual operations.
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 enables a stable, impermeable, and easy-to-produce sealing profile that ensures effective attachment to the vehicle body, with the adhesive being activated only when necessary, thus preventing premature curing and ensuring a reliable seal.
Implementation Method 1
The adhesive on the fastening section thus enables particularly stable and impermeable fastening of the sealing profile
Data Source
Figure 1a~2b
Figure 3a~3d
Figure 4a~4c
AI summary
The invention relates to a sealing profile (1), in particular for sealing a vehicle door against a door opening of a vehicle body, comprising a fastening section (2) and at least one sealing section (3). To enable simple manufacturing and also a particularly stable and impermeable fastening to a vehicle body, the fastening section (2) includes an adhesive (9a; 9b).