Adjustable Desk Platform Locking Linkage for Sit-Stand Ergonomics
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Solution Overview
Problem
Existing workspaces do not effectively accommodate both sitting and standing positions, leading to health issues associated with prolonged sitting or standing, and there is a need for an ergonomic solution that allows easy and quick transitions between these positions to maintain productivity.
Innovation Solution
An adjustable desk platform with a locking mechanism and pivot arms that allow the upper platform to move between fully raised and fully lowered positions, featuring a spring-loaded mechanism for easy height adjustment and a keyboard tray for ergonomic support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed desk is used, then the structure is simple and stable, but it cannot accommodate both sitting and standing positions
Solution Approach 1:
The desk platform is designed with movable pivot arms that allow the upper platform to transition between raised and lowered positions. The dynamic structure includes pivot points at the base and connection points to the upper platform, enabling height adjustment while maintaining structural integrity through controlled mechanical movement.
Solution Approach 2:
The desk is divided into separate functional components: a base, pivot arms, an upper platform, and a locking mechanism. This segmentation allows each component to perform its specific function independently while contributing to the overall height adjustment capability, making the complex system manageable and maintainable.
2Reliability
If standing desks are used, then cardiovascular health is improved, but carotid atherosclerosis risk increases due to additional circulatory load
Solution Approach 1:
The adjustable height mechanism allows users to dynamically switch between sitting and standing positions throughout the workday. This dynamic positioning enables users to alternate between postures, preventing prolonged exposure to either extreme and thereby reducing circulatory system stress while maintaining cardiovascular health benefits.
3Stability of the object's composition
If the upper platform is made heavy, then stability is improved, but ease of operation deteriorates
Solution Approach 1:
The pivot arm mechanism is designed to provide mechanical advantage during height adjustment. The pivot points and arm lengths are configured to reduce the effort required to lift the upper platform, effectively counterbalancing its weight during the raising motion while maintaining stability when positioned.
Solution Approach 2:
The locking mechanism automatically secures the upper platform at desired heights through engagement with the pivot arm structure. This self-locking feature eliminates the need for continuous manual support, allowing the platform to remain stable at adjusted heights without requiring constant user intervention or excessive weight.
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 positions, promoting health and productivity by allowing users to customize their workspace height and maintain ergonomic comfort, reducing the risks associated with prolonged sitting or standing.
Implementation Method 1
a first spring fixed in position with respect to the lower platform, wherein movement of the upper platform toward the fully lowered position extends the first spring
Implementation Method 2
a second spring fixed in position with respect to the lower platform, wherein movement of the upper platform toward the fully lowered position causes the boss to bend the second spring and, optionally, wherein the second spring is a cantilever spring
Data Source
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AI summary
An adjustable desk platform can include an upper platform defining a first substantially planar work surface and a lower platform defining a second substantially planar work surface. At least one set of pivot arms can connect the lower platform and the upper platform. The set of pivot arms can comprise a primary pivot arm and a secondary pivot arm, wherein the set of pivot arms is adapted to move the upper platform substantially in parallel with the lower platform between a fully raised position and a fully lowered position. A locking mechanism can be associated with the set of pivot arms. The locking mechanism can include: a plurality of perforations located in the primary pivot arm or the secondary pivot arm, a locking set fixed with respect to the upper platform or the lower platform, the locking set including at least one anchor adapted to selectively engage at least one of the plurality of perforations, and a handle connected to the anchor by a linkage. The handle can be adapted to selectively move the anchor into engagement with at least one of the plurality of perforations. Other embodiments and features are also discussed.