Sliding Window Sealing Profile to Minimize Step and Lateral Movement
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Solution Overview
Problem
Traditional sealing arrangements for sliding windows in vehicles create an unattractive vertical step between the window and the frame, affecting aerodynamics and security, as they fail to effectively prevent transversal movements of the window that could compromise the passenger compartment's integrity.
Innovation Solution
A sealing profile strand with a support segment made of hard material and a sealing segment of soft material, featuring a vertical protrusion and window edge closure lip, is designed to be mounted on the frame profile, reducing the step between the window and the frame while preventing transversal movements by engaging the window's edge and limiting intrusion attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional U-shaped sealing profile strands are used to guide and seal the front and rear side edges of the sliding window, then sealing performance is improved, but a relatively undesirable big vertical step is created between the movable side window and the upper frame
Solution Approach 1:
The sealing profile strand is designed with a three-dimensional structure including a horizontal sealing portion and a vertical support portion. The horizontal portion provides sealing contact with the window edge, while the vertical portion extends downward to provide structural support and reduce the vertical step, effectively utilizing spatial dimensions to resolve the contradiction between sealing performance and aesthetic appearance.
Solution Approach 2:
The sealing profile strand is segmented into distinct functional portions: a horizontal sealing portion for contact with the window edge and a vertical support portion for structural support. This segmentation allows each portion to optimize its specific function while working together to eliminate the vertical step and maintain effective sealing.
2Reliability
If traditional header profiles are used, then the upper edge of the sliding window is received within a U-shaped sealing profile strand, but this creates an unattractive big vertical step that negatively impacts aerodynamics
Solution Approach 1:
The sealing profile strand extends in the vertical direction (third dimension) with a downwardly extending support portion, creating a streamlined transition that reduces the vertical step between the window and header profile. This dimensional extension eliminates turbulent flow paths and improves aerodynamic performance while maintaining adequate window support.
Solution Approach 2:
The sealing portion is made of a relatively soft material that can deform and adapt to the window edge, providing effective sealing while the hard support portion provides structural rigidity. This material differentiation allows the profile to maintain structural integrity for support while creating a smooth aerodynamic surface.
3Reliability
If measures are taken to prevent transversal movements of the window, then security against intrusion is improved, but the sealing arrangement becomes more complex
Solution Approach 1:
The sealing profile strand is designed to perform multiple functions simultaneously: the horizontal sealing portion provides sealing contact, the vertical support portion provides structural support and positioning, and the integrated structure prevents transversal movements. This multi-functionality is achieved within a single integrated profile rather than requiring separate components, thereby avoiding increased complexity.
Data Source
AI summary
A sealing profile strand for mounting to a frame profile of a window frame which is slidable along a third direction. The sealing profile strand extends along a first direction and comprises a support segment that is formed of a relatively hard material and a sealing segment that is mainly formed of a relatively soft material, is attached to the support segment, and includes at least one inner sealing portion and an edge sealing portion. The support segment comprises a vertical support section for arrangement on an outside of the frame profile in a second direction perpendicular to the first and third directions. The support segment comprises a vertical protrusion which extends in the third direction. The edge sealing portion comprises a window edge closure lip which extends in the second direction and is configured to be engaged by the edge of the window.