Tailgate Handle Reinforcement Structure for Breakage Repair
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Solution Overview
Problem
Car tailgate handles in commercially available cars are prone to breaking due to insufficient mechanical strength, structural defects, and mismatched design with user habits, leading to frequent fractures and high maintenance costs.
Innovation Solution
A reinforcement structure is attached to the car tailgate handle, featuring supporting posts with keyhole contact surfaces and keyholes, manufactured to match the existing handle's shape, enhancing mechanical strength by bonding or clamping, and produced via injection molding, stamping, or 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a gorgeous metal shell is adopted for the handle to look sturdy and durable, then the appearance is improved, but the mechanical strength is insufficient and the handle breaks easily under normal use
Solution Approach 1:
The patent applies composite materials by combining a metal shell (for appearance) with a reinforcement structure (for strength). The reinforcement structure includes a reinforcement body and supporting posts that are bonded to the metal shell, creating a composite assembly that simultaneously achieves both aesthetic and mechanical performance requirements.
2Reliability
If the stress area of the handle locking structure is increased to prevent cracking, then the durability is improved, but the structure becomes more complex and manufacturing becomes more difficult
Solution Approach 1:
The patent segments the reinforcement function into separate supporting posts that are bonded to the metal shell. Instead of redesigning the entire handle structure, the reinforcement is added as discrete elements at critical stress points, maintaining simplicity while improving durability.
Solution Approach 2:
The reinforcement structure is designed to be pre-manufactured and then bonded to the metal shell. The supporting posts and reinforcement body are prepared in advance with bonding surfaces, allowing for straightforward assembly without complex in-situ modifications to the original handle structure.
3Reliability
If a complete copy of the car tailgate handle with stronger mechanical strength is made, then the reliability is improved, but the production cost is high and the mold making is difficult
Solution Approach 1:
The patent extracts only the necessary reinforcement function from a complete handle replacement. Instead of manufacturing an entirely new handle, the invention uses the existing metal shell and adds only the reinforcement structure (reinforcement body and supporting posts), significantly reducing manufacturing complexity and cost.
Solution Approach 2:
The reinforcement structure is designed to match the contours and attachment points of the existing metal shell. The reinforcement body is copied to fit between the supporting posts, and the supporting posts are designed with bonding surfaces that match the metal shell's geometry, enabling straightforward replication and assembly.
4Ease of repair
If plastic-steel soil is used for gap filling and adhesion in maintenance, then the repair is possible, but it is unsightly and likely to break repeatedly
Solution Approach 1:
The patent provides a permanent reinforcement solution that replaces the need for temporary plastic-steel soil repairs. The reinforcement structure is designed to be permanently bonded to the metal shell, providing a durable, long-lasting repair that eliminates the need for repeated maintenance.
Data Source
AI summary
A method and structure for reinforcing a car tailgate handle is used to strengthen a tailgate handle that is prone to breaking. Through the steps of disassembly, measurement, production of reinforcement parts, assembly of reinforcement parts and original parts, and installation, it is possible to quickly and extensively remedy tailgate handles with mechanical structural defects that have already been sold. This method and structure offer advantages such as simplified design, reduced material usage, environmental friendliness, ease of production, and rapid mass production.