Vehicle Door Window Clamping Structure for Wind-Stable Sealing
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Solution Overview
Problem
Conventional vehicle doors with height-adjustable window panes are complex and costly to manufacture, and they suffer from wind resistance issues due to protrusions that can lead to destabilization and water penetration, requiring a simpler and more efficient design.
Innovation Solution
A vehicle door design where the window pane is clamped between a slot strip and elastically flexible bearing surfaces, with a force applied at the upper edge to lift the frame, and an upper edge engagement in a groove in the closed position to prevent deflection, using a guide profile with a resilient sealing lip to maintain contact and reduce wind resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a side wall protrudes beyond the outer sides of the window panes in conventional guide rails, then the window pane is stabilized and protected from precipitation penetration, but wind resistance increases and aesthetic quality deteriorates
Solution Approach 1:
The patent removes the protruding side wall element from the guide rail design. Instead of having the guide rail extend beyond the window pane edges, the rail is designed to be flush with or recessed from the pane edges, eliminating the source of wind resistance while maintaining sealing through alternative means (weatherstripping or precise tolerances).
Solution Approach 2:
The patent employs flexible weatherstripping or sealing films to provide the stabilizing and protective functions previously achieved by rigid protruding side walls. These flexible elements can conform to the window pane edges and provide sealing without creating wind resistance, thus resolving the contradiction between reliability and aerodynamic performance.
2Object-affected harmful factors
If the side wall is omitted to reduce wind resistance, then aesthetic quality improves, but the window pane becomes destabilized and prone to precipitation penetration
Solution Approach 1:
The patent introduces an intermediary sealing element (weatherstripping or flexible film) that mediates between the flush guide rail design and the window pane. This intermediary provides the necessary stabilization and protection from precipitation without requiring protruding side walls, thus maintaining aerodynamic efficiency while ensuring reliability.
3Reliability
If a hidden groove and slider are added to block window pane movements, then window pane stability improves, but manufacturing complexity and cost increase
Solution Approach 1:
The patent eliminates the complex hidden groove and slider mechanism from the guide rail design. Instead, it uses a simpler flush guide rail structure combined with weatherstripping or flexible sealing elements to achieve window pane stability and sealing, significantly reducing manufacturing complexity and cost.
Solution Approach 2:
The patent changes the design parameters of the guide rail from a complex profile with hidden grooves to a simple flush structure. This parameter change simplifies manufacturing while maintaining functionality through the use of flexible sealing elements that adapt to the simplified geometry.
4Object-affected harmful factors
If a flush guide rail design is used to reduce wind resistance, then aerodynamic performance improves, but the window pane becomes unstable and prone to deflection
Solution Approach 1:
The patent uses flexible weatherstripping or sealing films in conjunction with the flush guide rail design. These flexible elements provide the necessary friction and mechanical support to stabilize the window pane while allowing the guide rail to remain flush with the pane edges, thus maintaining aerodynamic performance without sacrificing stability.
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 design enhances stability and reduces wind resistance by ensuring the window pane remains securely positioned, minimizing frictional wear and maintaining contact even under high wind forces, while being more cost-effective and efficient to manufacture.
Implementation Method 1
at least one of the bearing surfaces and the slot strip is elastically flexible
Implementation Method 2
the restoring force of the window pane that counteracts the deflection increases by between 10 and 50% of the force acting in the applied state for each millimeter of distance
Implementation Method 3
an upper edge of the window pane can engage in a groove in the window frame in the closed position
Implementation Method 4
a guide profile with a resilient sealing lip to maintain contact and reduce wind resistance
Data Source
Figure 1~5
Figure 6~8
AI summary
The invention relates to a door of a motor vehicle, comprising a door body (7), a window opening that is delimited by a window frame (9) and, on an underside, by the door body (7), and a height-adjustable window pane (10), which can be moved past a channel strip (24) between an open position that is at least partially sunk in the door body (7), and a closed position that covers the window opening. The window pane (10) is clamped between the channel strip (24) abutting the external side (19) of the window pane and contact surfaces (18, 26) abutting the channel strip (24) above and below on the inner side (17) of the window pane. Of the contact surfaces (18, 26) and the channel strip (24), at least one is elastically flexible.