Flush Glazed Vehicle Door Seal with Integrated Guide Rails
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Solution Overview
Problem
Existing vehicle door designs with flush glazed surfaces face manufacturing and assembly complexities, requiring numerous parts that complicate weight reduction and size minimization, and are difficult to maintain or replace.
Innovation Solution
A glazed device with a frame featuring a rigid upper crosspiece seal that integrates guide rails and sealing means, allowing for efficient assembly and sealing, with the seal being made in one piece and obtained through extrusion, providing two levels of sealing between the panel and frame, and between the frame and vehicle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frame with separate sealing components is used to ensure tight sealing, then sealing reliability is improved, but device complexity and number of parts increase
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated seal unit that includes a rigid upper part forming the crosspiece and flexible side parts extending downward. This single piece performs both structural support and multiple sealing operations, eliminating the need for separate sealing components and reducing overall device complexity while maintaining reliable sealing between the movable panel and frame.
2Adaptability or versatility
If multiple separate components are assembled to form the glazed device, then manufacturing flexibility is improved, but assembly complexity and time increase
Solution Approach 1:
The seal is manufactured as a single integrated piece through extrusion or molding processes, combining the rigid upper crosspiece and flexible side sealing parts into one component. This reduces assembly operations while maintaining manufacturing flexibility through choice of extrusion or molding methods, directly improving production efficiency.
3Reliability
If a complex sealing system with multiple parts is used, then sealing performance is improved, but ease of maintenance and replacement deteriorates
Solution Approach 1:
By integrating all sealing functions into a single replaceable seal unit, the patent simplifies maintenance operations. When sealing performance degrades, the entire seal assembly can be quickly removed and replaced as one component, eliminating the need to disassemble and replace multiple separate sealing parts, thereby improving ease of repair while maintaining reliable sealing performance.
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 simplifies the manufacturing and assembly of vehicle doors, ensures efficient operation and tight sealing despite manufacturing tolerances, and facilitates easy maintenance or replacement.
Implementation Method 1
the seal being made in one piece and obtained through extrusion
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
A glazed device (11) intended to be mounted in a door body (10) to form a door (1) of a motor vehicle, comprising a frame having an upper crosspiece connecting two rails (112a, 112b) slidably guiding a movable glazed panel (110) carrying a guide shoe (116, 117, 118) that is slidably mounted relative to one of the rails (112a, 112b), and at least one sealing device (115) comprising a rigid upper portion (115c) that forms, by itself, the upper crosspiece of the frame, said upper portion (115c) carrying first and second sealing means (115d, 115e) intended to come into contact with the vehicle body (C), when the door (1) is closed, and with the movable glazed panel (110). The upper portion (115c) and the first and second sealing means (115d, 115e) are made in a single piece.