Cross-Arm Desk Lifting Mechanism for Sit-Stand Height Adjustment
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Solution Overview
Problem
Current solutions for reducing the risks associated with prolonged sitting and standing at work, such as desks designed for standing, do not effectively address the need to alternate postures without causing injuries or fatigue, and fail to maintain productivity.
Innovation Solution
A lifting mechanism for desks that includes a cross-arm assembly allowing the desk body to adjust height via a combination of pivoting and sliding connections between two brackets, enabling users to switch between sitting and standing postures while maintaining productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a desk is designed for standing use, then people feel more energetic and consume more calories, but it increases burden to the human circulatory system and is more tiring
Solution Approach 1:
The patent implements a height-adjustable desk mechanism that enables dynamic transition between sitting and standing positions. The desk structure includes adjustable support legs and positioning mechanisms that allow users to change desk height, thereby alternating between sitting and standing postures during work to avoid the harmful effects of prolonged standing while maintaining the energy benefits
2Productivity
If people stand at work for long hours, then they feel more energetic, but it increases risks of carotid atherosclerosis or varices
Solution Approach 1:
The adjustable desk mechanism enables users to dynamically switch between sitting and standing positions throughout the workday. This dynamic posture alternation prevents the health risks associated with prolonged standing (such as carotid atherosclerosis and varices) while still allowing users to experience the energy benefits of standing when needed
3Ease of operation
If people sit for work for prolonged hours, then they can maintain a fixed posture, but it causes injuries and pains
Solution Approach 1:
The height-adjustable desk mechanism allows users to alternate between sitting and standing postures, preventing the injuries and pains caused by prolonged sitting. Users can maintain stable posture during each position (sitting or standing) while periodically switching positions to avoid the harmful effects of fixed prolonged postures
Data Source
AI summary
A lifting mechanism for desk including a first bracket, a second bracket, and at least one cross-arm assembly is provided. The cross-arm assembly has at least three connecting ends for connecting the first bracket and the second bracket respectively. The cross-arm assembly rotates about a first axis to change a shear angle thereof, and drives the first and the second brackets to move close to or away from each other relatively in a second axis.