Spring-Assisted Display Lifting Mechanism for Smooth Height Adjustment
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Solution Overview
Problem
Conventional large-size display mounting mechanisms lack adjustable height functionality without requiring electric power, leading to inconvenient manual adjustment and increased weight burden during operation.
Innovation Solution
A lifting device with a sliding mechanism and springs that allow manual height adjustment of displays, featuring positioning bases, reels, and springs to reduce effort and prevent accidental falling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a manual height adjustment mechanism is used, then the display can be adjusted to different heights, but the user needs to expend greater force to push or pull the display, resulting in significant hand obstruction
Solution Approach 1:
The patent employs springs as elastic elements that provide upward supporting force to counterbalance the weight of the display. This counterweight mechanism reduces the effort required by the user to adjust the display height, significantly decreasing hand obstruction while maintaining full height adjustability capability.
Solution Approach 2:
The lifting member is designed to slide along the stationary member with movable positioning bases that can shift between different positions. This dynamic structure allows the display to be adjusted to multiple height positions while the springs continuously provide adaptive supporting force, making the adjustment process easier and more flexible.
2Ease of operation
If an electric lifting motor and control circuit are integrated into the stand for effortless height adjustment, then the user can easily adjust the display height, but the display cannot be directly mounted on the wall, occupying additional configuration space and increasing manufacture and construction costs
Solution Approach 1:
The patent replaces complex electric lifting mechanisms with a simpler mechanical system consisting of a sliding member, stationary member, and elastic springs. This mechanical substitution eliminates the need for electric motors and control circuits, enabling direct wall mounting while providing effortless height adjustment through the spring-assisted sliding mechanism.
Solution Approach 2:
The springs automatically provide the necessary supporting force for height adjustment without requiring external power sources or control systems. The system serves itself by using the elastic potential energy stored in the springs to assist the user during adjustment, eliminating complex electrical components and simplifying the overall mounting structure.
3Device complexity
If the reels have large friction torque with the positioning bases, then the structure is simpler, but the springs cannot smoothly drive the reels to rotate, increasing the effort required and reducing adjustment smoothness
Solution Approach 1:
The positioning bases are designed to be movable along the stationary member, allowing them to dynamically adjust their positions. This dynamic design reduces the friction torque between the reels and positioning bases, enabling the springs to smoothly drive the reels during rotation while maintaining structural simplicity. The movable bases adapt to the rotational motion, reducing resistance and improving adjustment smoothness.
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
Enables effortless manual height adjustment of displays, reducing hand obstruction and preventing accidental falls while minimizing weight and friction resistance.
Implementation Method 1
there are springs between the lifting member and the stationary member, wherein the springs continue to provide an upward pulling force during the lifting and lowering of the lifting member relative to the stationary member
Implementation Method 2
By reducing the friction torque between the reels and the positioning bases, when the user pulls down the lifting member or display, the springs may smoothly drive the reels to rotate relative to the positioning bases
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A lifting device (200) is provided. The lifting device (200) includes a stationary member (210), a lifting member (220), positioning bases (240), reels (250), and springs (260). The lifting member (220) is slidably coupled to the stationary member (210). The lifting member (220) is fixed to a back portion of a display. The positioning bases (240) are disposed on the stationary member (210) and the lifting member (220). The reels (250) are pivoted on the positioning bases (240). The springs (260) are wound around the reels (250) and connected to the other of the stationary member (210) and the lifting member (220) relative to the positioning bases (240). When the display or the lifting member (220) is subjected to an applied force (A) toward a sliding direction (SD), the lifting member (220) slides toward the sliding direction (SD) relative to the stationary member (210). The springs (260) stretched by the lifting member (220) generate an elastic force, so that the lifting member (220) and the display no longer subjected to a force stay at a height position after sliding.