Display Stand Linkage With Torsion Spring for Thin Folding Support
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Solution Overview
Problem
Conventional display device stands have thick main links due to the thickness of auxiliary links, which are thick to support tension springs, leading to cumbersome unfolding and increased material costs.
Innovation Solution
A stand design featuring a thin main link unit and a thin auxiliary link unit with a torsion spring that applies elastic force, allowing for smooth folding and unfolding, and reducing material usage through a simpler manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a tension spring is disposed between two link members of the auxiliary link, then the stand can be rapidly returned to the upright position when unfolded, but the spring and link members must be at least 1 cm thick to exert sufficient tension force, resulting in a thick main link
Solution Approach 1:
The patent changes the spring type from tension spring to torsion spring, fundamentally altering the mechanical parameter of force application. The torsion spring applies rotational force through eccentric connection, enabling the same tension function with reduced thickness of link members and main link.
Solution Approach 2:
The torsion spring acts as an intermediary mechanism between the link members, using eccentric connection to transform rotational motion into linear tension force. This intermediary approach allows thinner link members while maintaining sufficient tension force for returning the stand to upright position.
2Force
If a thick spring is installed on the auxiliary link to provide sufficient elastic force, then the stand can be returned to upright position, but the stand is not smoothly unfolded
Solution Approach 1:
The patent changes the spring configuration from thick tension spring to thin torsion spring with eccentric connection. This parameter change allows the spring to provide sufficient elastic force through rotational mechanics while maintaining smooth unfolding operation due to the thinner profile and reduced friction.
3Stability of the object's composition
If the link members of the auxiliary link are made thicker to stably support the spring, then the spring can be supported, but the thickness of the main link increases
Solution Approach 1:
The patent changes from tension spring to torsion spring with eccentric connection, fundamentally altering how stability is achieved. The torsion spring's rotational connection provides stable support through moment of inertia and torsional stiffness, allowing thinner link members and main link while maintaining structural stability.
4Force
If a tension spring is used between link members, then elastic force can be applied, but the auxiliary link and main link units become thick, increasing material usage and manufacturing cost
Solution Approach 1:
The patent changes the spring mechanism from tension to torsion type, which fundamentally reduces the material quantity required. The torsion spring with eccentric connection achieves the same elastic force function with significantly thinner link members and main link, reducing overall material usage and manufacturing cost.
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 stand achieves reduced thickness, smoother operation, and lower production costs while maintaining the necessary elastic force for returning to the upright position.
Implementation Method 1
a torsion spring including at least one end connected to the pair of auxiliary links for applying an elastic force to the pair of auxiliary links
Implementation Method 2
a torsion spring including at least one end connected to the pair of auxiliary links for applying an elastic force to the pair of auxiliary links
Data Source
AI summary
There is provided a stand for a display device. The stand includes a base unit supporting the display device. A main link unit is hinged between the display device and the base unit. A pair of auxiliary links is eccentrically connected to hinges of the main link unit at different positions. A torsion spring includes at least one end connected to the pair of auxiliary links for applying an elastic force to the pair of auxiliary links. The main link unit has a smaller thickness, and thus the size of the stand can be reduced. The stand allows for convenient and smooth operation of the display device. Further, since the spring has a simple structure, the stand can be manufactured through a simple process with less cost. Furthermore, the outer appearance of the stand can be simple.