Lift structure with adjustment assistance optimized based on ergonomics and installation method thereof
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Solution Overview
Problem
Existing lift desks with gas springs for height adjustment suffer from suboptimal performance due to improper installation, which affects the ergonomic assistance and user experience.
Innovation Solution
A lift structure with a specific installation method for gas springs, where the gas spring axis is tangent to a circumference at a reference height, ensuring optimal ergonomic assistance by maximizing the moment of the gas spring's output force, and including a switch structure for controlled expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the gas spring is installed at a conventional position in the existing lift desk structure, then the height adjustment function can be achieved, but the ergonomic assistance effect is suboptimal and cannot reach the ideal state
Solution Approach 1:
The patent applies parameter changes by precisely adjusting the installation position parameters of the gas spring (second and third rotating shaft positions) relative to the X-shaped cross arm. By changing the geometric parameters - specifically positioning the gas spring axis to be tangent to a circumference centered on the first rotating shaft at a reference height - the patent optimizes the moment arm and force transmission, transforming the suboptimal ergonomic assistance into ideal state assistance while maintaining reliable height adjustment function.
2Ease of operation
If the gas spring installation position is not optimized, then the structure can be simpler to manufacture, but the user experience and ergonomic assistance are compromised
Solution Approach 1:
The patent transforms the manufacturing consideration by defining a specific geometric parameter relationship (tangent to circumference) that, while precise, provides a clear manufacturing target. This parameter change approach converts an vague optimization goal into a concrete design specification that can be systematically implemented during manufacturing and assembly.
3Force
If the gas spring is positioned to maximize ergonomic assistance, then user effort is reduced, but the installation complexity and positioning precision requirements increase
Solution Approach 1:
The patent addresses this contradiction by establishing a clear geometric parameter relationship for gas spring positioning. By defining the axis tangency condition at reference height, the patent creates an optimized force transmission path that maximizes ergonomic assistance while providing a systematic method for achieving the required positioning precision during manufacturing and assembly.
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 lift structure optimizes ergonomic assistance by ensuring the gas spring's full potential is utilized, providing stable and efficient height adjustment with reduced user effort, while reducing material and processing costs.
Implementation Method 1
gas springs are used in the existing structures to assist the above-mentioned process
Implementation Method 2
the gas spring is activated by a switch installed at the bottom of the top, so that it can output power to assist the user's operation
Implementation Method 3
one end of the gas spring rotates around a second rotating shaft fixed relative to the first directional arm, and the other end rotates around a third rotating shaft fixed relative to the second directional arm
Data Source
AI summary
A lift structure with adjustment assistance optimized based on ergonomics includes a top, a base, an X-shaped cross arm and a gas spring, wherein the X-shaped cross arm includes a first directional arm and a second directional arm; wherein one end of the gas spring rotates around a second rotating shaft fixed relative to the first directional arm, and the other end rotates around a third rotating shaft fixed relative to the second directional arm, and the first, second and third rotating axes being parallel with each other; and wherein at the reference height, in a plane where an axis of the gas spring is located and is perpendicular to the respective rotating axes, the axis of the gas spring is tangent to a circumference centered on the first rotating shaft and having a set radius, with a tangent point being located on the second rotating shaft.