Gas-Spring Height-Adjustable Desk With Simple Linkage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing desks with fixed heights lead to health issues such as scoliosis and eye strain due to prolonged sitting, and height-adjustable desks with motors are costly and complex in structure.
Innovation Solution
A height-adjustable desk with a simpler structure featuring a link mechanism and a gas cylinder-based height-adjusting mechanism that allows the top board to move up and down, enabling easy height adjustment without the need for motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a motor or actuator is used to adjust the height of the entire desk, then the height-adjustable function is achieved, but the manufacturing cost increases and the structure becomes complicated
Solution Approach 1:
The invention divides the desk into two independent parts: a fixed base and a movable top board. Only the top board is made height-adjustable through a link mechanism, while the base remains stationary. This segmentation allows the height-adjustable function to be achieved without requiring the entire desk structure to be complex, as only the top board assembly needs the adjustment mechanism.
Solution Approach 2:
The invention extracts the height-adjustment function from the base and applies it only to the top board. By removing the motor/actuator from the overall system design and replacing it with a passive link mechanism for the top board, the complexity is reduced while maintaining the essential height-adjustable capability.
2Device complexity
If the top board is made to move up and down using a link mechanism, then the structure is simplified and manufacturing cost is reduced, but the height-adjustable function must still be achieved
Solution Approach 1:
The invention uses a gas spring (pneumatic element) as the height-adjusting means to provide the necessary lifting force for the top board. The gas spring automatically extends and contracts to move the top board up and down, achieving the height-adjustable function through a simple pneumatic mechanism rather than complex mechanical linkages or motors.
Solution Approach 2:
The link mechanism is designed to be dynamically adjustable, allowing the top board to move freely up and down within a certain range. The connection between the base and top board through the link mechanism provides dynamic adaptability while maintaining structural simplicity.
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 desk provides a healthier working environment by allowing users to adjust the height easily, reducing physical strain and improving comfort without increasing manufacturing costs or complexity.
Implementation Method 1
a height-adjusting means formed to be extendable at a desired length and determining the height of the top board with respect to the base according to a length thereof
Data Source
AI summary
A height-adjustable desk includes a base, a top board, a link mechanism, a height-adjusting member, and an operating member. The top board is configured to be vertically elevated with respect to the base. The link mechanism is disposed between the base and the top board so as to support the top board such that the top board may be elevated, the link mechanism including a plurality of link members. The height-adjusting member is formed to be extendable at a desired length and determining a height of the top board with respect to the base according to a length thereof. The operating member fixes the height-adjusting member so that the height-adjusting member maintains the desired length.