Monitor Stand Gas Spring and Friction Unit for Stable Torque
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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 featuring 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 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 patent replaces the traditional elastic spring mechanism with a gas spring that uses pneumatic pressure to provide lifting force and maintain the display at adjusted angles. The gas spring contains pressurized gas that expands to counterbalance the weight of the display, providing consistent torque without the friction and wear issues of mechanical spring systems. This resolves the contradiction by maintaining reliable torque adjustment stability while preserving ease of angle adjustment operation.
Solution Approach 2:
The patent employs a friction unit with adjustable friction members that can be selectively positioned to change the frictional force between the support member and housing. By adjusting the friction parameter, the system maintains stable torque over time while allowing smooth angle adjustment. The friction members can be moved to different positions on the support member to modify the frictional characteristics, thereby resolving the contradiction between operational ease and long-term reliability.
2Ease of operation
If circular special disc plates are pressed in the axial direction to adjust the angle using frictional force, then angle adjustment is achieved, but frictional force reduction hinders support after long time
Solution Approach 1:
The gas spring provides continuous pneumatic pressure to maintain the display at the desired angle, eliminating reliance on frictional force between disc plates. The pressurized gas expands to counterbalance the display weight, providing reliable support capability without the friction degradation problem. This resolves the contradiction by decoupling the support function from friction-dependent mechanical contact.
Solution Approach 2:
The friction unit allows dynamic adjustment of the friction parameter by repositioning friction members on the support member. When maximum support is needed, friction members are positioned to maximize frictional force. When adjustment is needed, friction is reduced. This variable friction parameter resolves the contradiction between maintaining support capability and enabling ease of operation throughout the product lifecycle.
3Ease of operation
If an improper rotation angle between the LCD monitor and support is used, then height adjustment is compromised, but unnecessary space is required for packaging
Solution Approach 1:
The gas spring provides controlled pneumatic pressure to achieve precise rotation angles between the LCD monitor and support. The adjustable friction unit works in conjunction with the gas spring to maintain optimal angular positioning. This precise angle control allows the display to achieve its compact form factor, minimizing packaging space while preserving full height adjustment functionality.
Solution Approach 2:
The friction members can be adjusted to change the frictional torque, which directly controls the rotation angle between the monitor and support. By optimizing the friction parameter, the system achieves the minimum necessary rotation angle for proper display positioning, thereby reducing the overall package volume while maintaining ease of height adjustment through the gas spring mechanism.
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
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.