Vehicle Door Window Assembly With Fixed Upper Pane Opening
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Solution Overview
Problem
Pulling a parking ticket from a dispenser positioned below the vehicle's beltline is cumbersome, especially for vehicles with high beltlines like SUVs and vans, due to the high door windows requiring extensive lowering.
Innovation Solution
A window assembly with a guide profile system for a drop-down window pane, including a support and fixed pane, allowing for efficient operation of external devices like a parking ticket machine, with a web at the beltline level and grooves for secure engagement, and optional tinting for sunlight protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the window opening is divided into an upper fixed section and a lower drop-down section, then the space requirements for the drop-down pane are avoided and the window can be opened over a sufficiently large area, but the support structure may obstruct the view of vehicle occupants
Solution Approach 1:
The window opening is divided into an upper fixed window section (5) and a lower drop-down window section (7), allowing the lower section to be opened while maintaining the upper section for visibility. This segmentation enables sufficient window opening area without compromising the view through the fixed upper portion.
Solution Approach 2:
The support (4) is positioned at a distance from the lower ends of the guide profiles that is greater than the distance to the highest point of the upper guide profile, placing it in a spatial dimension that avoids obstructing the occupant's view while still providing structural support for the drop-down mechanism.
2Stability of the object's composition
If a support structure is added to stabilize the window assembly, then the assembly stability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The support (4) is merged with the guide profiles (14, 16) to form an integrated window assembly (13). The support connects the middle sections of the front and rear guide profiles, stabilizing the assembly while maintaining a relatively simple structure that can be prefabricated and inserted into a conventional door frame.
3Object-affected harmful factors
If the fixed window pane is tinted for sunlight protection, then protection against excessive sunlight is improved, but the透光性 (light transmission) is reduced
Solution Approach 1:
The fixed window pane (5) is selectively tinted to provide sunlight protection while the lower drop-down window section (7) can remain untinted or have different tinting properties. This local differentiation allows sunlight protection where needed (upper fixed section) while maintaining visibility and light transmission where the window is opened (lower movable section).
Data Source
Figure 1~5
AI summary
The invention relates to a window assembly (13) for a vehicle door (1), comprising a window guide for a sash-window pane (7) with a front and a rear guide profile (14, 16) in the assembly position, which are connected at their upper ends by an upper guide profile (15), a carrier (4) connecting central portions of the front and the rear guide profile (14, 16), and a fixed window pane (5) which is mounted between the upper guide profile (15) and the carrier (4).