Tailgate Material Shield Assembly for Latch Gap Debris Blocking
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Solution Overview
Problem
Existing tailgates often allow material to enter gaps between the door subassembly and the frame subassembly, which can interfere with the latch system and compromise the integrity of the cargo bed.
Innovation Solution
A material shield is integrated into the tailgate assembly, extending into the notched areas between the door subassembly and the frame subassembly when the door is closed, to block debris from entering these gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door subassembly is designed with a notched area to receive the striker, then the door can be properly latched and secured, but material can enter the gap through the notched area and interfere with the latch system
Solution Approach 1:
A material shield is introduced as an intermediary component between the door subassembly and the frame subassembly. The shield extends into the notched area to block material from entering the gap, while allowing the striker to pass through and engage the latch system. This mediator protects the latch system from material intrusion without interfering with its latching function.
Solution Approach 2:
The tailgate assembly is segmented into distinct functional zones: the door subassembly, the frame subassembly, and the material shield. The material shield is positioned at the interface between these segments, creating a barrier that prevents material from traveling along the gap between the door and frame subassemblies while maintaining the structural integrity of the overall assembly.
2Object-affected harmful factors
If the material shield extends into the notched area, then material is blocked from entering the gap, but the complexity of the tailgate assembly increases
Solution Approach 1:
The material shield is integrated with existing components of the tailgate assembly, such as being attached to the door subassembly or frame subassembly. This merging approach allows the shield to be installed as part of the existing structure rather than as a completely separate component, thereby reducing the overall complexity increase while still providing effective material blocking.
Solution Approach 2:
The material shield serves multiple functions: it blocks material from entering the notched area, provides a seal between the door and frame subassemblies, and maintains the structural integrity of the gap interface. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in assembly complexity while achieving comprehensive protection.
Data Source
AI summary
A vehicle assembly includes a striker of a tailgate assembly, and a door subassembly of the tailgate assembly. The door subassembly has a latch configured to engage the striker to hold the door subassembly in a door closed position. The door subassembly has a notched area that receives the striker when the door subassembly is pivoted from a door open position to a door closed position. A material shield extends into the notched area when the door subassembly is in the door closed position.