Display Stand Hinge Structure for Stable Multi-Directional Torque
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display stand hinge structures face difficulties in maintaining consistent torque and frictional force over time, leading to improper rotation angles and increased manufacturing costs, which affects the competitiveness of display devices.
Innovation Solution
A display stand design that utilizes a coupling of disc springs, washers, and bushes to generate rotating torque in multiple directions, with a toothed lock washer to prevent loosening, allowing for adjustable and secure positioning of monitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a highly elastic spring is installed on a shaft to adjust the angle of the LCD monitor using elastic force, then the angle adjustment function is achieved, but difficulty in adjusting torque and reduction in frictional force occur after long-term use
Solution Approach 1:
The hinge structure is divided into multiple functional components: a shaft for rotation, a disc spring for elastic force, a friction plate for frictional torque, and a lock washer for securing. This segmentation allows each component to perform its specific function optimally, with the friction plate providing consistent frictional force independent of spring degradation.
Solution Approach 2:
A friction plate is introduced as an intermediary component between the shaft and the lock washer. This friction plate generates frictional force that provides consistent torque for angle adjustment, compensating for the reduction in elastic force from the disc spring over time. The friction plate acts as a mediator that ensures reliable torque transmission.
2Ease of operation
If a plurality of circular special disc plates are installed to overlap each other and pressed in the axial direction to adjust the angle using frictional force, then angle adjustment is achieved, but improper rotation angle requires unnecessary space increasing manufacturing costs
Solution Approach 1:
Multiple functions are merged into a single compact hinge structure: the shaft provides rotation, the disc spring provides elastic force, the friction plate provides frictional torque, and the lock washer provides securing. This consolidation achieves angle adjustment with consistent torque while minimizing space requirements and simplifying the overall device structure.
3Adaptability or versatility
If the coupling member is repeatedly adjusted for angle changes, then angle adjustment flexibility is improved, but the coupling member becomes loosened in the hinge structure
Solution Approach 1:
The lock washer is pre-installed on the shaft before operation, and the disc spring is pre-compressed to generate initial frictional force. This preliminary setup ensures that the coupling member remains securely fastened while allowing repeated angle adjustments. The pre-configured friction mechanism prevents loosening during flexible angle changes.
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 consistent and adjustable torque in multiple directions, enhancing user convenience and reducing manufacturing costs by ensuring precise angle adjustments and preventing wear and tear.
Implementation Method 1
a hinge structure in which a plurality of washers and bushes are coupled to a coupling member serving as a rotating shaft, so as to adjust and fix the angle of a monitor
Implementation Method 2
a bush positioned between an outer surface of the first coupling member and an inner surface of the first link, and through which the first coupling member passes
Data Source
AI summary
Disclosed is a display stand including a first rotational coupling unit, and the first rotational coupling unit includes a coupling member installed in a central part of a first link and configured to pass through the first link and a second link so as to allow the first link and the second link to be rotatable in leftward and rightward directions, metal bushes installed on an outer surface of the coupling member so as to surround the coupling member and inserted into the first link so as to press the first link, and first toothed lock washers installed on the outer surface of the coupling member so as to surround the coupling member, disposed on outer surfaces of the metal bushes, and configured to have connection members provided towards an inner surface of the first link so as to be pressed against an inner surface of the second link.