Articulating Car Door Hinge to Cover Side Exhaust Pipes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cars with side exhaust pipes pose a hazard to occupants due to the risk of leg burns from hot exhaust gases and pipes, as traditional door hinges do not effectively cover the exhaust pipes during opening, leading to dangerous proximity when exiting the vehicle.
Innovation Solution
A unique articulating hinge that connects two substantially planar surfaces, allowing the door to open forward, outward, and downward in an arc, covering the exhaust pipe and providing optional additional movements, utilizing a quadrilateral linkage with pivoting joints and adjustable brackets to control the door's movement and stabilize the arc.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional forward-hinge door is used, then the door structure is simple and easy to manufacture, but the door does not cover the exhaust pipe during opening, creating a safety hazard
Solution Approach 1:
The patent applies a dynamic parallelogram linkage mechanism that allows the door to move through a controlled arcuate path, transitioning from a static hinge position to a dynamic multi-axis movement system. This enables the door to sweep downward and forward, covering the exhaust pipe during opening, while maintaining parallel alignment throughout the motion sequence.
Solution Approach 2:
The invention adds dimensional complexity by introducing vertical and rotational movement components to the traditional horizontal door opening motion. The parallelogram linkage system enables the door to traverse three-dimensional space, moving forward, outward, and downward simultaneously, thereby achieving exhaust pipe coverage without compromising structural simplicity.
2Reliability
If the door opens in a traditional arc, then the hinge structure is simple, but the door cannot effectively cover the exhaust pipe positioned below the door
Solution Approach 1:
The parallelogram linkage mechanism transforms the simple arcuate door opening motion into a controlled dynamic sequence that includes forward, outward, and downward components. This dynamic motion path ensures the door sweeps over the exhaust pipe positioned below, providing effective protection while maintaining smooth and natural operation.
3Reliability
If additional hinges are attached in series to stabilize the arc of movement, then the door movement is more controlled and safe, but the device complexity increases
Solution Approach 1:
The patent segments the door support function across multiple parallelogram linkage units that can be attached in series. Each linkage unit contributes to the overall controlled arcuate motion, dividing the stabilization function into discrete modular components that work together to maintain parallel door alignment throughout the opening sequence.
Solution Approach 2:
The invention merges multiple hinge functions into a unified parallelogram linkage system where the linkage arms and pivoting joints work together as an integrated mechanism. This combination provides stable, controlled arcuate movement while maintaining a relatively simple overall structure compared to using multiple independent hinge assemblies.
Data Source
AI summary
This is a hinge that simultaneously articulates two substantially planar surfaces forward, outward and downward, in an arc, relative to one another. The hinge can be attached to, and move, any two substantially planar surfaces. It is especially useful when attaching a door to a car with side exhaust pipes. When I choose a door that curves inwardly toward the interior of the car, and attach the inventive hinge, the curve of the door physically covers the exhaust pipe and exhaust gas.