Height adjustable platforms and associated mechanisms
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Solution Overview
Problem
Existing workstation designs lack efficient height adjustment mechanisms that maintain consistent force requirements for height changes, especially when loaded with varying weights, and often fail to accommodate diverse user preferences and workstation configurations.
Innovation Solution
The implementation of a height adjustable wall mount assembly with a counterbalance mechanism, including springs and wheel cables, that maintains constant force for height adjustments, combined with a lock assembly and tilting capabilities, and a mobile workstation with articulating components for flexible positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a height adjustment mechanism is added to the workstation, then height adjustability is improved, but device complexity increases
Solution Approach 1:
The patent applies a counterbalance mechanism using springs and cables to offset the weight of the worksurface. The spring assembly stores mechanical energy and releases it to assist in lifting the worksurface, while the cable system transmits this force to maintain equilibrium during height adjustment. This resolves the contradiction by providing height adjustability without requiring the user to manually overcome the full weight of the surface.
Solution Approach 2:
The patent introduces intermediate components including a cable drum, pulleys, and spring assemblies that mediate between the user's input force and the worksurface weight. These intermediaries transform and transmit forces through a mechanical advantage system, reducing the direct force requirement while adding controlled complexity through well-defined mechanical components.
2Adaptability or versatility
If the worksurface is made to support varying weights, then load adaptability is improved, but force consistency deteriorates
Solution Approach 1:
The counterbalance spring assembly is designed to provide a force that dynamically compensates for varying loads on the worksurface. As weight is added or removed, the spring compression and cable tension automatically adjust to maintain near-constant user effort throughout the height adjustment range, resolving the force consistency issue while supporting variable loads.
Solution Approach 2:
The mechanical system changes its operational parameters (spring compression, cable tension, mechanical advantage ratio) in response to varying loads. This allows the system to adapt to different weight conditions while maintaining consistent user effort through automatic parameter adjustment rather than requiring manual intervention.
3Ease of operation
If quick-release mechanisms are added for worksurface removal, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent extracts the locking function into a separate, dedicated quick-release mechanism that can be independently operated from the height adjustment system. This allows the worksurface to be quickly detached for cleaning or replacement without involving the complex counterbalance mechanism, providing ease of operation while containing complexity in modular, manageable components.
Solution Approach 2:
The attachment system is segmented into distinct functional components: the height adjustment mechanism remains engaged with the support structure, while the quick-release latches provide independent attachment/detachment capability. This segmentation allows simple removal operations without requiring disassembly of the entire support mechanism.
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 seamless height adjustments with minimal force, accommodates varying workloads, and provides flexible workstation configurations to suit user needs and diverse applications, enhancing user comfort and productivity.
Implementation Method 1
a spring assembly, and a cable assembly. The height adjustment mechanism can include a counterbalance mechanism, including the spring assembly and the cable assembly
Implementation Method 2
The cable assembly can include a cable, a first pulley, and a second pulley. The cable can be coupled to the sliding bracket, and can extend over the first pulley and the second pulley
Data Source
AI summary
A mobile workstation can include a head unit assembly. A worksurface can be coupled to the head unit assembly and configured to translate with respect to the head unit assembly between an open configuration and a closed configuration. A glide can be rotatably coupled to the head unit assembly and engaged with the worksurface. The glide can include a latch configured to translate with respect to a glide body of the glide. The mobile workstation can include a worksurface opening mechanism having a locking configuration and an unlocking configuration. The worksurface opening mechanism can include a latch release handle moveably coupled to the head unit assembly. Movement of the latch release handle can transition the worksurface opening mechanism between the locked configuration and the unlocked configuration. A release assembly can selectively engage with the first latch. A lift system can bias the worksurface away from the head unit assembly.