Height-adjustable platform
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Solution Overview
Problem
Conventional tables have fixed heights or difficult-to-adjust mechanisms, often requiring manual effort and complex, heavy ergonomic desks to accommodate varying heights, which can be cumbersome and impractical.
Innovation Solution
A height-adjustable, rollable platform with a track system and parallelogram configurations of legs and casters, allowing for easy height adjustment without altering the caster position, combined with optional stabilizers and actuators for motorized or manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed-height tables are used, then structural simplicity is maintained, but height adjustability is lost
Solution Approach 1:
The patent applies the dynamics principle by making the table height adjustable through a mechanism that allows the tabletop to be raised and lowered. The parallel linkage system with adjustable stops enables the table to dynamically change its height position while maintaining structural integrity, transforming a static structure into a dynamically adjustable one.
2Adaptability or versatility
If motor-driven ergonomic desks are used, then height adjustability is improved, but weight and complexity increase
Solution Approach 1:
The patent applies the self-service principle by enabling manual height adjustment through the parallel linkage mechanism with adjustable stops. The user can directly manipulate the linkage system to raise or lower the tabletop without requiring external power sources or motorized assistance, making the system self-sufficient and eliminating the weight of motors and power systems.
Solution Approach 2:
The patent extracts the motorized drive system from the height adjustment mechanism, relying instead on a purely mechanical parallel linkage system. By removing the motor component, the design achieves height adjustability without the associated weight and complexity of powered systems.
3Adaptability or versatility
If friction clamps and rods are used for height adjustment, then height adjustability is achieved, but ease of operation decreases
Solution Approach 1:
The patent uses the dynamics principle with a parallel linkage system that provides natural mechanical movement. The linkage allows smooth, guided motion of the tabletop vertically, making height adjustment more intuitive and easier to operate compared to friction clamps that require manual tightening and loosening.
4Adaptability or versatility
If platform height is increased, then accessibility is improved, but caster stability may be compromised
Solution Approach 1:
The patent applies the dynamics principle by using a parallel linkage system that maintains the geometric relationship between the tabletop and casters throughout the height adjustment range. This ensures that as the tabletop moves vertically, the casters remain properly positioned and stable, preventing instability even at elevated heights.
Data Source
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AI summary
The present invention provides a height-adjustable platform having two pairs of parallel legs arranged as scissors. Each legs comprises to rods that are attached to a leg mount at one end and a caster mount at the other end. The rods, leg mount and caster mount form a parallelogram. The leg mounts are attached to movable members that travel in a track system.