Tailgate Striker Coupling Structure With Closed-Section Reinforcement
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Solution Overview
Problem
Existing vehicle tailgate striker installations lack sufficient rigidity due to limitations in structural design, particularly in the area where the striker is mounted, leading to potential rigidity deficiencies.
Innovation Solution
A coupling structure is introduced comprising a rear end module and a tailgate striker, where the rear end module is over-molded with a reinforcing member, and a striker reinforcing member is integrated with a bulkhead, forming a closed cross-section to enhance rigidity, using metallic materials for both components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate reinforcing member is welded to the back panel inner or back panel outer as a double plate within the space S, then the structure attempts to distribute the load, but the rigidity cannot be sufficiently improved because no additional cross section can be formed
Solution Approach 1:
The invention transitions from a two-dimensional reinforcement approach (welding plates within the existing space S) to a three-dimensional solution by forming a C-shaped reinforcing member that creates an additional cross-sectional dimension. This C-shaped structure extends outward from the back panel, effectively adding a new spatial dimension for load distribution and rigidity enhancement without being constrained by the original space S limitations.
Solution Approach 2:
The reinforcing structure is divided into distinct functional segments: the C-shaped reinforcing member that forms the primary structural support, the striker mounting plate that provides the mounting surface, and the integration points that connect to the back panel. This segmentation allows each component to be optimized for its specific function while working together to solve the overall rigidity problem.
2Force
If the tailgate is made high-weight to maintain closed state, then the closing function is achieved, but the rigidity of the striker installation portion becomes insufficient
Solution Approach 1:
Rather than uniformly increasing the weight and thickness of the entire tailgate, the invention applies localized reinforcement specifically at the striker installation portion. The C-shaped reinforcing member is strategically positioned only where the striker is mounted, providing concentrated rigidity enhancement exactly where needed without adding unnecessary weight to the entire tailgate structure.
Solution Approach 2:
The solution employs a composite structural approach combining the original back panel material with the added C-shaped reinforcing member and striker mounting plate. This creates a composite reinforcement system where different components work together - the back panel provides the base structure, while the C-shaped member and mounting plate provide enhanced local rigidity and mounting capability.
Data Source
AI summary
Provided is a coupling structure of a rear end module and a tailgate striker. The coupling structure includes a rear end module formed by injection and coupled to a circumference of a rear opening of a vehicle; a rear end module reinforcing member fastened to an inner surface of the rear end module; a striker reinforcing member fastened to one side of a lower end of the rear opening and coupled to the rear end module reinforcing member; and a striker fastened to an upper portion of the striker reinforcing member.