Rear Slider Window Corner Sealing for Watertight Assembly
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Solution Overview
Problem
Conventional rear slider window assemblies for vehicles, particularly pickup trucks, face challenges in achieving a reliable and watertight seal, especially at the corners where gaps can form between attachment elements.
Innovation Solution
A vehicular rear slider window assembly with a perimeter seal that includes elongated sealing portions with corner sealing tabs or lips, and passageways for injecting sealant into corner regions to fill and seal gaps between attachment elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional attachment elements are used to attach sealing portions to fixed window panels, then the assembly process is simple, but gaps form at corner regions reducing sealing reliability
Solution Approach 1:
The sealing system is divided into multiple components: attachment elements with integrated passageways, corner sealing tabs positioned at gap locations, and sealant material. This segmentation allows the sealant to be delivered precisely to gap regions through the passageways, filling the gaps and improving sealing reliability without requiring a completely different attachment system.
Solution Approach 2:
The attachment elements serve as intermediaries that perform dual functions: mechanically attaching the sealing portions to the fixed window panels and simultaneously delivering sealant to the corner gaps through integrated passageways. This intermediary role resolves the contradiction by combining structural and sealing functions in a single component.
2Reliability
If sealant is injected into corner regions to fill gaps, then watertight integrity is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The passageways are pre-formed as integral parts of the attachment elements during manufacturing. This preliminary action ensures that the sealant delivery paths are already in place before assembly, eliminating the need for complex post-assembly modifications and making the sealant injection process straightforward.
Solution Approach 2:
The attachment elements are designed to automatically deliver sealant to the corner gaps through their integrated passageways when sealant is introduced into the sealing system. This self-service mechanism eliminates the need for external sealing operations and simplifies the manufacturing process while ensuring reliable gap filling.
3Reliability
If corner sealing tabs are added to the perimeter seal, then gap sealing is improved, but device complexity increases
Solution Approach 1:
The corner sealing tabs are merged with the perimeter seal structure, forming an integrated sealing system. This combination allows the tabs to be positioned precisely at the corner gaps where they are needed, improving corner sealing effectiveness without requiring separate, standalone sealing components that would increase overall system complexity.
Data Source
AI summary
A method for manufacturing vehicular slider window assembly includes providing at least one fixed window panel and a perimeter seal having elongated sealing portions joined at respective corner regions. Each of the elongated sealing portions includes a base portion, an elongated sealing lip and an attachment element. The perimeter seal is adhesively attached at the fixed window panel. The corner regions are sealed at the at least one fixed window panel via dispensing a sealant through a passageway formed at an end of the base portion of respective ones of the elongated sealing portions at the respective corner regions to fill a gap between adjacent end regions of the respective attachment elements at the respective corner regions at the surface of the at least one fixed window panel. A movable window panel is disposed at upper and lower rails of the at least one fixed window panel.