Rear Spoiler Upper End Stop for Window Assembly Clearance
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Solution Overview
Problem
Longer rear spoilers on motor vehicle tailgates obstruct the perpendicular approach needed for window assembly, complicating the gluing process due to limited maneuvering space and obstructed vision, and may be irreversibly integrated, necessitating additional assembly and disassembly operations.
Innovation Solution
A rear spoiler design featuring an upper stop and depth stop, integrated or separately attached, facilitates precise vertical positioning of the window glass, maintaining glue bead clearance from the bonding track, and includes a wedge for pressing the glue onto the track, simplifying assembly and reducing damage risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rear spoiler is made longer for aerodynamic and aesthetic reasons, then the aerodynamic performance and aesthetics are improved, but the maneuvering space for window assembly is reduced and the operator's field of vision is obstructed
Solution Approach 1:
The spoiler is segmented into a first portion and a second portion, with the first portion having a greater longitudinal extension than the second portion. This segmentation allows the spoiler to achieve the desired aerodynamic length while creating sufficient maneuvering space near the window assembly area for the bonding operation to be performed along a substantially perpendicular incident path.
2Productivity
If the rear spoiler is made longer, then the aerodynamic performance is improved, but the operator's field of vision is obstructed
Solution Approach 1:
The segmented spoiler design with the first portion extending further longitudinally than the second portion allows the operator to maintain an unobstructed field of vision during window assembly while still achieving the aerodynamic benefits of a longer spoiler configuration.
3Stability of the object's composition
If the spoiler is integrated with the tailgate or fixed in an irremovable manner, then the structural integrity is improved, but additional assembly and disassembly operations are required
Solution Approach 1:
The segmented spoiler structure with its specific geometric configuration allows the window to be properly positioned and bonded without requiring the spoiler to be removed, thereby maintaining structural integrity while reducing assembly complexity.
4Manufacturing precision
If the window is positioned close to the bonding track, then the bonding precision is improved, but the glue joint integrity is compromised
Solution Approach 1:
The segmented spoiler configuration maintains the necessary distance between the window and the bonding track, allowing the bonding operation to be performed along a substantially perpendicular incident path that ensures both bonding precision and glue joint integrity.
Data Source
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AI summary
The invention relates to a rear spoiler (30) for a motor vehicle, comprising a lower part (33) having a recessed shape (35) comprising an upper end stop (34) intended to be positioned above a bonding land (36) for a window (38), the upper end stop (34) being configured to provide a clearance between the bonding land (36) and a bead of adhesive (40) situated on the window when the window is resting against the upper end stop (34). The invention also relates to a tailgate comprising such a rear spoiler and to a method for assembling a window and a tailgate.