Direction-Dependent Pivot Resistance Joint Structure
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Solution Overview
Problem
Existing joint and hinge arrangements for vehicle doors lack direction-dependent pivoting resistance, leading to issues such as increased wear, self-locking, and aesthetic concerns, while also being complex, vulnerable, and costly.
Innovation Solution
A joint arrangement with direction-dependent pivoting resistance is designed, featuring two joint parts with specific surface sections that provide different resistance when pivoted in different directions, and a hinge arrangement combining two such joint arrangements with a connecting element to achieve a breakthrough-free, low-maintenance, and cost-effective solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a joint arrangement with direction-dependent pivoting resistance is designed using complex hinge mechanisms, then the pivoting control is improved, but the device complexity increases and manufacturing costs rise
Solution Approach 1:
The joint arrangement is divided into two separate joint parts (first joint part and second joint part) with distinct running surfaces. Each joint part has specific surface sections (first to fourth surface sections) that work together to create direction-dependent pivoting resistance through controlled sliding contact, eliminating the need for complex hinge mechanisms while achieving the desired pivoting control functionality.
Solution Approach 2:
The invention changes the geometric parameters of the running surfaces by defining specific surface sections with different orientations. The second surface section extends obliquely to the pivot axis while the fourth surface section extends parallel to it, creating variable contact conditions that produce direction-dependent resistance without mechanical complexity.
2Duration of action of moving object
If traditional hinge arrangements are used for vehicle doors, then the door can be opened and closed, but wear increases and self-locking occurs due to lack of direction-dependent resistance control
Solution Approach 1:
The running surfaces are designed with asymmetric geometry relative to the pivot axis. The second surface section extends obliquely in one direction while the fourth surface section extends parallel to the axis, creating different contact conditions for pivoting in opposite directions. This asymmetry produces direction-dependent resistance that prevents self-locking and reduces wear by optimizing contact during opening and closing operations.
Solution Approach 2:
The joint arrangement dynamically adapts its resistance characteristics based on the direction of pivoting. During normal operation, the sliding contact between the specifically configured surface sections automatically provides appropriate resistance levels, enhancing reliability and preventing unwanted door closure without requiring additional active control mechanisms.
3Ease of operation
If running surfaces are designed with multiple surface sections for direction-dependent resistance, then pivoting resistance control is improved, but manufacturing precision requirements increase
Solution Approach 1:
The running surfaces are segmented into four distinct surface sections (first to fourth surface sections) with specific geometric characteristics. This segmentation allows each section to be optimized for its specific function while maintaining overall manufacturability. The clear definition of each section's orientation and extent provides straightforward manufacturing guidelines that balance precision requirements with ease of 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 ensures reliable door operation with controlled pivoting, preventing undesired closure and maintaining a compact design, while allowing a full 180° pivot angle without external interference, thus enhancing safety and reducing manufacturing costs.
Implementation Method 1
the two running surfaces are in contact with each other and slide against each other during a pivoting movement
Implementation Method 2
the second surface section extends at least partially obliquely to the pivot axis and connects the first and third surface sections
Data Source
Figure 1a~2c
Figure 3a~3b
Figure 4a~4b
AI summary
The present invention relates to a joint arrangement with direction-dependent pivoting resistance, comprising a first joint part (20) and a second joint part (30) which are arranged to pivot relative to each other along a pivot axis (A) and in a pivoting direction (S) and a counter-pivoting direction (G);wherein the two joint parts (20, 30) have respective running surfaces (26, 36), wherein the joint arrangement is designed such that the two running surfaces (26, 36) are in contact with each other and slide against each other during a pivoting movement, wherein the two running surfaces (26, 36) are designed such that they each comprise at least one group of surfaces, wherein each of the groups of surfaces comprises a first to fourth surface section successively in the pivoting direction (S), wherein the first (26a, 36a) and the third surface section (26c, 36c) are each designed to be planar and extend in planes which are perpendicular to the pivoting axis (A) and spaced apart from each other, the second surface section (26b, 36b) extends at least partially obliquely to the pivoting axis (A) and connects the first (26a, 36a) and third surface section (26c, 36c);and the fourth surface section (26d, 36d) extends in a plane parallel to the pivot axis (A) and connects the third surface section (26c, 36c) with the first surface section (26a, 36a) or a first surface section of an adjacent surface group. Furthermore, the invention relates to a hinge arrangement comprising a first and a second joint arrangement with direction-dependent pivot resistance, and to a vehicle comprising a door and a hinge arrangement according to the invention.