Synchronized Telescoping Desk Legs for Stable Height Adjustment
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Solution Overview
Problem
Existing height adjustable desks lack efficient mechanisms for accommodating users of varying heights, as they often require manual adjustment and lack synchronization in leg movement, leading to instability and limited height adjustment range.
Innovation Solution
The implementation of telescoping legs with a counterbalancing mechanism, such as a rotary cam or gas spring, and a synchronization assembly using tension members and pulleys, allows for automatic height adjustment and equal movement between leg assemblies, ensuring stability and a wider height range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment mechanisms are used in existing height adjustable desks, then the device complexity is reduced, but the ease of operation deteriorates due to lack of synchronization and stability
Solution Approach 1:
The patent combines multiple leg assemblies into a synchronized system where all legs are connected through a common adjustment mechanism. This merging ensures that when one leg is adjusted, all other legs move simultaneously and equally, providing stability and eliminating the need for manual coordination of multiple independent adjustment mechanisms.
Solution Approach 2:
The synchronization mechanism automatically coordinates the movement of all leg assemblies without requiring user intervention to manually adjust each leg. The system self-regulates to maintain equal height across all legs, providing ease of operation while maintaining structural integrity.
2Adaptability or versatility
If telescoping legs with counterbalancing mechanisms are implemented, then the height adjustment range is increased, but the device complexity increases
Solution Approach 1:
The patent employs telescoping leg assemblies where inner tubes are nested within outer tubes, allowing for extended height adjustment range. The counterbalancing mechanisms are integrated within the telescoping structure, with gas springs or cam mechanisms positioned inside the leg assemblies, maximizing space utilization while achieving wide height adjustability.
Solution Approach 2:
The patent incorporates counterbalancing mechanisms including gas springs and cam mechanisms that provide upward force to offset the weight of the desk surface and adjust the height smoothly. These counterbalancing elements are strategically positioned within the telescoping leg structure to provide mechanical advantage and reduce the effort required for height adjustment.
3Stability of the object's composition
If synchronization assembly with tension members and pulleys is used, then the stability is improved, but the device complexity increases
Solution Approach 1:
The patent introduces tension members and pulleys as intermediary elements that connect the leg assemblies. These intermediaries transmit force and motion between legs, ensuring synchronized movement and maintaining stability. The pulleys act as mediators that redirect tension forces, while tension members provide the connecting medium that couples all leg assemblies into a unified stable structure.
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
This solution enables seamless height adjustment from seated to standing positions, providing stability and comfort for users of different heights by synchronizing leg movement and utilizing counterbalancing mechanisms for efficient force distribution.
Implementation Method 1
an adjustable desk can include a weight counterbalance mechanism using a gas spring and a pulley assembly
Implementation Method 2
a weight counterbalance mechanism using a gas spring and a pulley assembly
Data Source
AI summary
In an example, a lift mechanism can comprise: a first leg assembly, the first leg assembly including: a first member; and a second member moveable relative to the first member along a first longitudinal axis; a second leg assembly, the second leg assembly including: a third member; and a fourth member moveable relative to the third member along a second longitudinal axis; and a synchronization assembly connecting the first and second leg assemblies, the synchronization assembly configured to balance movement between the first and second leg assemblies, the synchronization assembly including a wheel assembly, the wheel assembly connected to a first tension member and a second tension member, the first tension member connected to at least one of the first leg assembly and the second leg assembly and the second tension member connected at least one of the first leg assembly and the second leg assembly.