Tailgate Hinge Mounting Structure With Integrated Double Reinforcement

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Solution Overview

Problem

Existing tailgate hinge mounting structures in vehicles rely on single-direction connections and multiple layers of vehicle body reinforcement for durability, which can be cumbersome and may not provide sufficient strength.

Innovation Solution

A tailgate hinge mounting structure that includes a roof rail, rear end module, and tailgate hinge connected via bracket and rail bolts, with additional bracket and rail reinforcements, forming a double connection structure to enhance stability and strength without additional reinforcement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If multiple layers of vehicle body reinforcement are welded to secure mounting strength, then the strength and durability of the tailgate hinge mounting is improved, but the device complexity and assembly difficulty increase

Engineering Contradiction:
Improvemounting strengthVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent combines the reinforcement structure and the tailgate hinge mounting structure into a single integrated rear end module. The rear end module includes a rear end inner panel with a mounting recess that directly receives and secures the tailgate hinge, eliminating the need for separate reinforcement layers. This integration maintains mounting strength while reducing structural complexity and assembly steps.

Inventive Principle:
Principle #5Merging (Combining)

2Duration of action of stationary object

If multiple layers of vehicle body reinforcement are welded to secure mounting strength, then the durability of the tailgate operation is improved, but the assembly time and manufacturing complexity increase

Engineering Contradiction:
ImprovedurabilityVSAvoidassembly time
Core Design Contradiction:
Duration of action of stationary objectVSLoss of time

Solution Approach 1:

The reinforcement and mounting functions are merged into the rear end module, which is installed as a single component. The rear end inner panel of the module includes an integrated mounting recess that directly secures the tailgate hinge without requiring separate reinforcement welding steps, thereby reducing assembly time while maintaining durability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rear end module is pre-assembled with the mounting recess and reinforcement structure already integrated into the rear end inner panel. This preliminary integration allows the entire mounting structure to be installed in one step during vehicle assembly, reducing on-site assembly time and complexity while ensuring durable construction.

Inventive Principle:
Principle #10Preliminary action

3Force

If separate reinforcements are used for tailgate hinge mounting, then the connection strength is improved, but the number of parts and assembly complexity increase

Engineering Contradiction:
Improveconnection strengthVSAvoidnumber of parts
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The patent merges the reinforcement component and the mounting structure into a single rear end module. The rear end inner panel of this module includes a mounting recess that directly receives the tailgate hinge, providing strong connection without requiring separate reinforcement parts. This reduces the total number of components while maintaining connection strength.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12605993B2Tailgate hinge mounting structure
Publication Date: 2026.04.21 HYUNDAI MOTOR CO LTD
  • US12605993B2 patent drawing
  • US12605993B2 patent drawing
  • US12605993B2 patent drawing

AI summary

An embodiment relates to a tailgate hinge mounting structure that includes a roof rail disposed in a width direction of a vehicle body, a rear end module connected with the roof rail, a tailgate hinge connected with the roof rail and the rear end module, and a bracket bolt connecting the roof rail. The rear end module and the tailgate hinge in a vertical direction of the vehicle body. A bracket reinforcement is provided between the roof rail and the tailgate hinge. The bracket reinforcement is insert-injected together with the rear end module.