Monitor Stand One-Way Clutch Prevents Auto Lift
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Solution Overview
Problem
Monitor stands with tilt and height adjustment often experience an 'auto lift up' phenomenon when the monitor is tilted beyond a certain angle, leading to instability and potential collisions due to the loss of equilibrium between the monitor's weight component and the spring tension.
Innovation Solution
A monitor stand incorporating a top slide with a rack and a one-way clutch assembly, along with a spiral spring for elasticity, prevents auto lift by ensuring the rack remains engaged and the pinion rotates only in one direction, maintaining the monitor's position even when tilted excessively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the monitor is tilted beyond a predetermined angle, then the tilt angle adjustment range is improved, but the equilibrium between spring tension and monitor weight component is lost causing auto lift up
Solution Approach 1:
A one-way clutch assembly is introduced as an intermediary mechanism between the monitor and the stand. This clutch assembly includes a pawl and ratchet teeth that selectively engage to prevent the monitor from lifting up automatically when tilted beyond the predetermined angle, while still allowing manual tilting within the full range. The intermediary mechanism transfers only the necessary upward force to counteract the weight component without restricting the tilt angle adjustment range.
2Ease of operation
If a spiral spring is used to support the monitor, then the monitor can maintain its position during height adjustment, but the spring tension cannot counterbalance the monitor weight component when tilted at excessive angles
Solution Approach 1:
The support mechanism is made dynamic by introducing a one-way clutch assembly that adaptively engages or disengages based on the tilt angle. When the monitor is within the safe tilt range, the spiral spring alone maintains position. When the tilt angle exceeds the predetermined angle, the one-way clutch automatically engages to provide additional support, preventing auto lift up. This dynamic adjustment allows the system to maintain force equilibrium across all tilt angles while preserving ease of operation within normal ranges.
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
Prevents auto lift up occurrences, allowing users to tilt the monitor to desired angles without height adjustments failing, thereby enhancing user convenience and preventing monitor collisions.
Implementation Method 1
a spiral spring (not shown) that provides an elastic force in an upward direction equal to the weight W of the monitor 1
Implementation Method 2
when the difference exceeds the friction between the components, an auto lift up of the monitor 1 occurs
Data Source
AI summary
Provided is a monitor stand, capable of preventing an “auto-lift” phenomenon that occurs when a monitor installed thereon is tilted past a predetermined angle, due to a shift in the monitor's weight. The monitor stand includes a base, a stand body, a stand top, a stop slide, a first elastic member, and a one-way clutch assembly. The stand body is supported by the base. The stand top is pivotably supported on the stand body. The top slide slides along the stand top, has a rack extending in a sliding direction fixed thereto, and has a monitor installed thereon. The first elastic member is supported by the stand top, to impart elasticity in an upward direction to the top slide. The one-way clutch assembly is capable of engaging and disengaging to and from the rack, to prevent the rack from rising when engaged to the rack.