Folding Screen Hinge Structure for Flatness and Gap Control
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Solution Overview
Problem
Existing folding screen hinge structures are complex to assemble and prone to supporting member float, leading to uneven screens and compromised user experience due to limited folding capabilities and wedge-shaped gaps.
Innovation Solution
A hinge structure comprising a base frame assembly, a supporting assembly with a second supporting face, a first rotating assembly, a second rotating assembly slidably coupled to the supporting assembly, and a coupling rod assembly to enhance motion accuracy and natural screen folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional folding screen hinge structure is used, then the device can achieve folding functionality, but the supporting members float and cause uneven screens
Solution Approach 1:
The hinge structure is divided into multiple independent rotating assemblies (first rotating assembly and second rotating assembly), each responsible for specific rotation functions. This segmentation allows precise control of each component's movement, preventing supporting member float while maintaining manageable complexity through modular design
Solution Approach 2:
The coupling rod assembly acts as an intermediary mechanism that coordinates the motion between the first and second rotating assemblies. It ensures synchronized movement of supporting members, eliminating floating and unevenness while distributing mechanical stress across the structure
2Device complexity
If a single-angle folding design is used, then the hinge structure is simple, but wedge-shaped gaps appear and folding is incomplete
Solution Approach 1:
The hinge structure transitions from a fixed single-angle design to a dynamic multi-angle system. The first and second rotating assemblies enable the screen to fold at multiple angles, adapting to different folding stages and eliminating wedge-shaped gaps through continuous motion adjustment
Solution Approach 2:
The folding mechanism adds rotational dimensions beyond simple hinge rotation. By incorporating multiple rotating assemblies that operate in different rotational planes, the structure achieves complete folding without gaps while maintaining reasonable complexity through spatial optimization
3Device complexity
If the hinge structure lacks motion control, then the structure is simple, but the screen folding appears unnatural and accuracy is poor
Solution Approach 1:
The hinge structure controls motion by changing key parameters including rotation angles, rotational speeds, and sequential timing of different assemblies. This parameter control achieves natural-looking screen folding and high motion accuracy while avoiding excessive structural complexity through software-controlled mechanical actuation
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 proposed hinge structure improves motion accuracy, ensures natural screen folding, effectively protects the screen, and prevents supporting member float, resulting in a more stable and user-friendly folding experience.
Implementation Method 1
a first rotating assembly rotatably coupled to the base frame assembly; a second rotating assembly rotatably coupled to the base frame assembly
Implementation Method 2
the second rotating assembly being slidably coupled to the supporting assembly
Implementation Method 3
a coupling rod assembly hinged to the supporting assembly, the first rotating assembly and the second rotating assembly
Data Source
AI summary
A hinge structure includes: a base frame assembly including a first supporting surface; a supporting assembly including a second supporting surface; a first rotating assembly rotatably coupled to the base frame assembly; a second rotating assembly rotatably coupled to the base frame assembly, the second rotating assembly being slidably coupled to the supporting assembly; and a coupling rod assembly hinged to the supporting assembly, the first rotating assembly and the second rotating assembly.