Gas Spring Display Stand for Stable Torque and Height Fixing
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Solution Overview
Problem
Existing display stand hinge structures face difficulties in maintaining torque adjustment 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 incorporating a gas spring for height adjustment, coupled with rollers and friction units, allows for easy height adjustment and position fixation of displays, utilizing a rotational coupling unit with disc springs, space washers, and toothed lock washers to enhance durability and prevent abrasion.
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 an 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 patent replaces the traditional elastic spring mechanism with a gas spring that uses pneumatic pressure to provide lifting force and maintain torque. The gas spring contains compressed gas that expands to provide consistent lifting force, and includes a friction member that presses against the shaft to maintain stable frictional force for torque adjustment, solving both the angle adjustment function and the reliability issues after long-term use
Solution Approach 2:
The patent changes the physical state from mechanical elastic force to pneumatic pressure, and adjusts the friction parameter by introducing a friction member that can be pressed against the shaft. This allows for maintainable torque adjustment stability through controlled friction while preserving the angle adjustment capability
2Ease of operation
If circular special disc plates are pressed in the axial direction to adjust the angle of an LCD monitor using frictional force, then angle adjustment is achieved, but frictional force reduces over time leading to support failure
Solution Approach 1:
The gas spring uses pneumatic pressure to provide consistent lifting force, replacing the mechanical friction-based disc plates. The compressed gas maintains constant pressure, ensuring stable support force without the friction degradation issues of contact-based mechanisms
Solution Approach 2:
The gas spring acts as an intermediary between the monitor weight and the support structure, using gas pressure as a mediator to provide stable lifting force. This eliminates direct mechanical friction contact that causes force reduction over time
3Ease of manufacture
If improper rotation angle between the LCD monitor and support is used, then manufacturing costs increase and competitiveness weakens, but achieving proper rotation angle requires precise torque control
Solution Approach 1:
The gas spring with friction member provides self-adjusting torque control that automatically maintains the proper rotation angle. The friction member presses against the shaft to prevent slippage, allowing the system to self-regulate the angle without requiring high-precision manufacturing tolerances, thereby reducing manufacturing costs while maintaining angle precision
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 stable and durable height adjustment and position fixation of displays, reducing manufacturing costs and improving the competitiveness of display devices by maintaining consistent torque and frictional force.
Implementation Method 1
a highly elastic spring is installed on a shaft so as to adjust the angle of the LCD monitor using elastic force
Implementation Method 2
a friction unit configured to surround the support member, to have one surface coupled to the moving unit and a plurality of friction members configured to protrude outwards from a remaining surface of the friction unit, and to come into contact with an inner surface of the housing so as to increase frictional force with the moving unit in the housing and thus to improve fixing force of the moving unit at a designated position
Data Source
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AI summary
Disclosed is a display stand, including a moving unit configured to extend in a direction perpendicular to a first link configured to extend from one side of a monitor fixing unit, and an elevating unit including a housing configured to have an elevating hole formed therein so that the moving unit is inserted into the elevating unit therethrough, a support member installed in the housing so that the moving unit is movable in a lengthwise direction of the housing and configured to extend in a direction perpendicular to a floor surface, and friction units configured to surround the support member, to have one surface coupled to the moving unit and a plurality of friction members, and to come into contact with an inner surface of the housing.