Multi-Axis Vehicle Door Hinge for Tight Space Access
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Solution Overview
Problem
Conventional automobile doors with single-axis hinges face challenges in tight parking spaces and potential damage to adjacent vehicles due to limited opening motion, and retrofitting vertical-lift doors is complicated by contoured surfaces and body styles that prevent vertical rotation.
Innovation Solution
A multi-axis automobile door hinge system that combines swing-out and vertical-lift motion, allowing rotation in both horizontal and vertical planes, with a lift hinge retention element to restrict vertical motion until the swing-out hinge reaches a certain angle, enabling smooth arced travel and accommodating various door and body styles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional single-axis hinges are used for swing-out doors, then the door can open horizontally, but the door cannot open vertically upward and risks damaging adjacent vehicles in tight parking spaces
Solution Approach 1:
The patent transitions from single-axis horizontal rotation to dual-axis operation combining horizontal swing-out motion with vertical lift motion. The first hinge enables horizontal rotation while the second hinge enables vertical rotation, allowing the door to open in multiple dimensions including upward vertical movement that clears adjacent vehicles and tight spaces.
2Object-affected harmful factors
If vertical-lift door configuration is implemented, then the door can open upward eliminating damage risk, but retrofitting is difficult due to contoured surfaces and body style constraints
Solution Approach 1:
The patent divides the door opening function into two separate hinge mechanisms: a first hinge for horizontal swing-out motion and a second hinge for vertical lift motion. This segmentation allows each hinge to be independently mounted and adjusted, facilitating retrofitting on existing vehicle bodies without requiring complete redesign of the door or body structure.
Solution Approach 2:
The hinge assembly provides multiple functions: it can operate in pure swing-out mode, pure vertical-lift mode, or combined motion mode. This multi-functionality allows the same hinge system to adapt to various door styles and body configurations, making it universally applicable for retrofitting different vehicle types.
3Adaptability or versatility
If multi-axis hinge system is used for simultaneous swing-out and vertical-lift motion, then door opening flexibility is improved, but the hinge structure becomes more complex
Solution Approach 1:
The complex multi-axis motion is segmented into two independent single-axis hinges: the first hinge handles horizontal swing-out rotation and the second hinge handles vertical lift rotation. By separating the motion functions into distinct hinge components rather than using a single complex mechanism, the overall system becomes more manageable and easier to install while maintaining motion flexibility.
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
Enables smooth, multi-plane opening of automobile doors, reducing the risk of damage and allowing for retrofitting of conventional swing-out doors to vertical-lift operation without major body modifications, enhancing accessibility and functionality.
Implementation Method 1
The lift bearing is a dry-film lubricated bearing
Data Source
AI summary
The present invention is a simultaneous, multiple plane opening vehicle door hinge, comprising a first leaf, a second leaf, and a third leaf. The first leaf and the second leaf are pivotally coupled defining a swing-out hinge adapted so as to enable rotation in a substantially horizontal plane about a substantially vertical axis of rotation. The second leaf and the third leaf are pivotally coupled about a lift bearing defining a vertical-lift hinge adapted so as to enable rotation in a substantially vertical plane about a substantially horizontal axis of rotation. A pin extending from the third leaf traverses along a groove in a guide block such that there is simultaneous swing-out and vertical-lift motion of the vehicle door upon an outward urging of the door.