Vehicle Door Hinge Segmentation for Weight and Space Optimization
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Solution Overview
Problem
Existing vertically opening car door hinges are bulky and heavy, making them difficult to retrofit onto standard factory model vehicles, and they require more space and have complex joint constructions, which are not optimized for weight and space efficiency.
Innovation Solution
A door hinge design featuring a base member with a primary swivel and shock protrusion, a telescopic shock mechanism, and adjustable components such as a set screw and ball point tip, allowing for customizable installation and adjustment to fit various vehicle types, with a focus on reducing weight and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a vertically opening car door hinge is designed with a large base bracket and large door bracket to ensure structural strength, then the hinge can support the door weight and operational forces, but the hinge becomes bulky and heavy, making it difficult to retrofit onto standard factory model vehicles
Solution Approach 1:
The hinge is divided into separate components: a base member that attaches to the vehicle body and a door member that attaches to the door, connected by a hinge joint. This segmentation allows each component to be optimized independently, reducing overall weight while maintaining structural integrity through proper distribution of load-bearing functions.
Solution Approach 2:
The hinge uses varying material properties and structural densities in different regions: stronger, more substantial construction at critical load-bearing points (hinge axis, mounting interfaces) and lighter construction in non-critical areas. This local optimization maintains necessary strength while minimizing overall weight.
2Stability of the object's composition
If a vertically opening car door hinge uses a complex joint construction to ensure reliable door support and vertical opening motion, then the hinge can maintain door stability and control opening angles, but the hinge requires more space and has bulky dimensions
Solution Approach 1:
The hinge incorporates a hinge joint with controlled degrees of freedom that enables the door to perform its required vertical opening motion while maintaining stability in the closed position. The joint design allows necessary movement while constraining unwanted motions, achieving both stability and compactness through dynamic control rather than static over-constraint.
Solution Approach 2:
The hinge design transitions from traditional horizontal door opening to vertical opening motion, changing the dimension of operation. This dimensional change allows for a more compact hinge structure that fits within the vehicle's available space while still providing reliable door support and controlled motion.
3Adaptability or versatility
If a door hinge is designed with adjustable components and multiple mounting options to fit various vehicle types, then the hinge can be easily retrofitted onto different vehicles, but the hinge structure becomes more complex
Solution Approach 1:
The hinge is designed with universal mounting features and adjustable components that allow it to be adapted to different vehicle types and door configurations. The base member includes multiple mounting hole patterns and the door member includes adjustable positioning features, enabling a single hinge design to serve multiple applications without requiring vehicle-specific customizations.
Solution Approach 2:
The hinge incorporates pre-designed adjustment mechanisms and multiple mounting options that are built into the basic structure, allowing installers to quickly adapt the hinge to different vehicles without complex modifications. The preliminary inclusion of these adaptive features simplifies the installation process and reduces the need for custom fabrication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a lightweight, space-efficient, and adjustable door hinge that can be easily retrofitted onto different vehicles, offering improved weight optimization and ease of installation while maintaining the advantages of vertically opening car doors.
Implementation Method 1
The shock has an outer cylinder and a piston in telescopic connection to the outer cylinder
Data Source
AI summary
A vertically opening vehicle door hinge has a base member secured to a chassis at bolt slots disposed as elongated openings on the base member. A primary swivel member is swivel mounted to the base member so that the primary swivel member swivels on the plane defined by the base member. The primary swivel member has a primary swivel axis normal to the point defined by the base member. The arm is swivel mounted to the primary swivel member at a secondary swivel. The secondary swivel has an secondary swivel axis of rotation normal to the primary swivel axis. The arm is mounted to a door of the vehicle. The arm has an extended position corresponding to an open vehicle door and a retracted position corresponding to a closed vehicle door.