Adjustable Desk Platform With Parallel Lift and Height Locking
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Solution Overview
Problem
Conventional desks do not accommodate the ergonomic needs of alternating between sitting and standing, leading to health issues associated with prolonged sitting or standing, such as cardiovascular disease and varicose veins, and do not allow for easy and quick transitions between these postures.
Innovation Solution
An adjustable desk platform with a planar work surface that can move between fully raised and fully lowered positions, featuring a base without legs that sits on an existing desk, coupled with arms for parallel movement and a user-operable locking mechanism to secure the platform at various heights, including a counterweight to offset the upper platform's weight in the raised position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional fixed-height desk is used, then the desk structure is simple and stable, but it cannot accommodate ergonomic needs for alternating between sitting and standing
Solution Approach 1:
The patent implements a dynamic height adjustment mechanism that allows the desk surface to transition between multiple fixed heights (sitting and standing positions). The adjustable mechanism includes linkages, arms, and positioning systems that enable the desk to move between predetermined height levels while maintaining structural stability at each position.
Solution Approach 2:
The desk is divided into separate functional components: an adjustable height mechanism, a locking system, and a work surface. This segmentation allows independent optimization of each component - the height mechanism provides adaptability while the locking system ensures structural stability when positioned.
2Ease of operation
If the desk allows quick height adjustment, then ergonomic comfort is improved, but the locking mechanism and adjustment system become more complex
Solution Approach 1:
The locking mechanism is designed to automatically engage and disengage at predetermined height positions during the adjustment cycle. The system uses mechanical triggers and cam-activated locks that self-actuate when the adjustment arms reach specific positions, eliminating the need for manual locking operations and reducing operational complexity.
Solution Approach 2:
The desk positioning system pre-establishes correct height positions through mechanically predetermined stop points and alignment features. The locking mechanism is pre-configured to engage at these predetermined positions, allowing users to simply initiate adjustment without needing to calculate or measure the correct height.
3Ease of operation
If the upper platform is made lightweight for easy adjustment, then ease of operation improves, but structural strength and stability deteriorate
Solution Approach 1:
The patent incorporates counterweight mechanisms that balance the upper platform's weight during adjustment. Counterweights or spring-loaded assistance systems are integrated into the height adjustment mechanism to offset the platform's weight, reducing the effort required by users while the platform itself maintains sufficient structural strength for its intended load-bearing function.
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
Enables quick and easy transitions between sitting and standing, promoting ergonomic comfort and reducing health risks by allowing users to adjust the height according to their needs, thereby improving energy levels and weight management without requiring significant changes in diet or exercise.
Implementation Method 1
the base includes a counterweight adapted to offset weight of the upper platform when in the raised position
Data Source
AI summary
An adjustable desk platform can include: an upper platform defining a substantially planar work surface; a base located beneath the upper platform, the base defining a bottom surface without legs that is adapted to sit on an existing desk; first and second sets of arms coupling the upper platform to the base, wherein the first and second sets of arms are adapted for movement of the upper platform substantially in parallel with the base between a fully raised position and a fully lowered position; and a user-operable locking mechanism associated with the upper platform, the locking mechanism adapted to releasably lock the upper platform in the fully raised position, and in at least one intermediate position between the fully raised position and the fully lowered position. Other features and embodiments are discussed.