Vehicle Window Edge Sealing With Multi-Component Injection Molding
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Solution Overview
Problem
Existing window sealing devices for vehicles require complex assembly processes and multiple steps for connecting components, making the production and installation process cumbersome and time-consuming.
Innovation Solution
The securing element, trim element, and sealing strip are formed from plastic or composite fiber materials using injection-molding, allowing for simultaneous production and integration of components in a single step, eliminating the need for separate assembly steps and enabling a simpler, faster production process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If components are produced separately and connected through adhesive bonding or separate assembly steps, then manufacturing flexibility and material selection are improved, but device complexity and production time increase
Solution Approach 1:
The patent combines multiple separate components (securing element, trim element, and sealing strip) into a single integrated injection-molded part. This merging eliminates the need for separate assembly steps and adhesive bonding processes, directly resolving the contradiction by reducing assembly complexity while maintaining the ability to use different materials through multi-material injection molding capabilities
2Adaptability or versatility
If multiple separate components are assembled together, then functional versatility is improved, but production time and manufacturing complexity increase
Solution Approach 1:
The patent performs preliminary integration of all functional components during the injection molding process itself. The securing element, trim element, and sealing strip are formed and connected in a single molding operation, eliminating subsequent assembly steps and significantly increasing production speed while preserving all required functions
3Ease of repair
If components are connected through separate assembly steps, then ease of repair and replacement are improved, but manufacturing complexity and time consumption increase
Solution Approach 1:
The patent merges multiple components into a single integrated part through injection molding, which eliminates the need for separate assembly operations and reduces assembly time to virtually zero during installation. The integrated design maintains repairability by allowing the entire sealed unit to be replaced as a single component if needed
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
This approach simplifies the production and installation of window sealing devices by integrating components through injection-molding, reducing complexity and time required for assembly, while also allowing for metallization and various material options for aesthetic and functional enhancements.
Implementation Method 1
the securing element, on the one hand, and the trim element and/or the sealing strip, on the other hand, are formed on each other by means of injection-molding
Data Source
AI summary
A device for edge sealing of a part or a window pane of a vehicle body, which device has a fastening dement that fastens the sealing device to a body flange and retaining a sealing strand. The fastening element has a main leg, to which a decorative element is fastened, which has a surface visible after installation on the vehicle body, and a connecting leg, which protrudes from the main leg and is provided for holding the sealing strand. The fastening element and the decorative element and/or the sealing strand are formed of plastic or fiber composite material and the fastening element and the decorative element and/or the sealing strand are molded onto each other by injection molding. The fastening element and the decorative element and/or the sealing strand are produced by multi-component injection molding. The invention further relates to a method for producing such a sealing device.