Display Support Lift with Dual Inclined Surfaces for Stable Holding
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Solution Overview
Problem
Conventional supporting devices for displays require high accuracy in curved surface design and have shorter energy storage element lifetimes, making them less versatile and reliable for supporting displays of different sizes and weights.
Innovation Solution
An elevatable supporting device with an energy storage element that slides between two non-parallel surfaces, providing stable supporting force and allowing the display to stop at any position, featuring a torsion spring mechanism and adjustable resistance to maintain constant effective resistance along the axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single curved surface cam is used with an energy storage element, then the device can support displays of different sizes and weights, but the manufacturing precision requirement for the curved surface increases and the energy storage element lifetime decreases
Solution Approach 1:
The single curved surface cam is segmented into two separate non-parallel inclined surfaces. Each surface independently guides one arm of the energy storage element, distributing the mechanical guidance function across multiple simpler surfaces rather than requiring one complex curved surface with high precision manufacturing tolerances.
Solution Approach 2:
The two inclined surfaces are designed as non-parallel asymmetric surfaces rather than symmetric curved surfaces. This asymmetric configuration allows the energy storage element to maintain stable supporting force while reducing the precision requirements for each individual surface, as each surface only needs to provide linear guidance rather than conform to a complex curved profile.
2Adaptability or versatility
If a single curved surface cam is used with an energy storage element, then the device can support displays of different sizes and weights, but the energy storage element lifetime decreases
Solution Approach 1:
The single contact interface between the energy storage element and the cam is segmented into two separate contact interfaces with non-parallel inclined surfaces. This segmentation distributes the mechanical stress and wear across two surfaces, reducing the wear rate on each individual surface and extending the overall lifetime of the energy storage element.
Solution Approach 2:
The geometry of the two non-parallel inclined surfaces is designed to dynamically adjust the supporting force as the energy storage element moves between the highest and lowest positions. This dynamic adjustment ensures stable supporting force throughout the range of motion, reducing impact loads and extending component lifetime.
3Stability of the object's composition
If the energy storage element slides against a curved surface, then supporting force varies with position, but if it slides against two non-parallel surfaces, then supporting force is stabilized
Solution Approach 1:
The two non-parallel inclined surfaces create an asymmetric mechanical advantage system that stabilizes the supporting force. The specific angular relationship between the two surfaces is designed to compensate for position-dependent force variations, providing stable supporting force without requiring complex control mechanisms.
Solution Approach 2:
The geometric parameters of the two inclined surfaces (angles and positions) are specifically designed to change the mechanical advantage ratio as the energy storage element moves. This parameter change compensates for position-dependent force variations, stabilizing the supporting force throughout the range of motion.
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 a stable, long-life energy storage element with fewer components and a simple operation principle, enabling the device to support displays of varying sizes and weights with improved accuracy and reliability.
Implementation Method 1
an energy storage element having two arms that slide upwardly and downwardly between two non-parallel inclined surfaces to stabilize the supporting force
Data Source
AI summary
An elevatable supporting device for bearing a display is provided. The elevatable supporting device comprises an upright, an energy storage element, and a bearing module. The upright includes a first surface and a second surface which is non-parallel to the first surface. The energy storage element abuts against the first surface and the second surface and includes a first arm providing a first resistance and a second arm providing a second resistance. A first included angle is defined between the first arm and the second arm. When the energy storage element moves from the highest position to the lowest position, the first included angle decreases so that one of the first resistance and the second resistance may increase in order to maintain a total effective resistance along the first axis. Accordingly, the display may be able to stop at any position between the highest position and the lowest position.