Adjustable desk frame
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Solution Overview
Problem
Existing adjustable height desks often lack the flexibility to accommodate a wide range of desktop sizes and heights, limiting user customization and adaptability.
Innovation Solution
The adjustable desk frame features interconnected extendable table legs with motors and linkages that allow for synchronized extension and retraction, enabling the frame to support various desktop widths and heights while maintaining a level surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing adjustable height desks are designed with fixed leg mechanisms, then the structure is simple and easy to manufacture, but the flexibility to accommodate different desktop sizes and heights is limited
Solution Approach 1:
The desk leg is divided into multiple telescoping segments (inner tube, intermediate tube, outer tube) that can extend and retract independently. This segmentation allows the leg to achieve multiple length configurations while maintaining structural integrity, resolving the contradiction between adaptability and complexity by breaking down the adjustment mechanism into manageable modular components.
Solution Approach 2:
The leg mechanism transitions from a static fixed length structure to a dynamic telescoping structure with multiple extendable segments. The inner and intermediate tubes can slide within the outer tube, enabling continuous adjustment of leg length and desktop height, thereby achieving versatility without requiring complete redesign of the basic leg structure.
2Adaptability or versatility
If separate motors are used for each leg to enable independent adjustment, then height customization is maximized, but the device complexity and cost increase
Solution Approach 1:
Multiple leg adjustment mechanisms are merged into a single synchronized system. The crossbar linkage connects corresponding legs (left front with right front, left rear with right rear), causing them to extend and retract simultaneously when one leg is adjusted. This merging reduces the number of independent motors needed while maintaining the ability to customize desktop height and tilt angle.
Solution Approach 2:
The crossbar acts as an intermediary mechanical element that transfers motion between paired legs. When one leg's actuator extends or retracts, the crossbar transmits this motion to the corresponding leg on the opposite side, ensuring synchronized adjustment without requiring separate motors for each leg. This intermediary mechanism simplifies the control system while preserving customization capability.
3Adaptability or versatility
If the desk frame uses fixed-length legs, then manufacturing and assembly are simplified, but the ability to support various desktop widths and heights is reduced
Solution Approach 1:
The telescoping leg structure employs a nested configuration where the inner tube is inserted within the intermediate tube, which is itself inserted within the outer tube. This nesting arrangement allows multiple length configurations to be achieved within a single leg component, eliminating the need to manufacture and inventory multiple fixed-length leg variants while maintaining ease of assembly through a standardized nested design.
Data Source
AI summary
An adjustable desk frame includes a first extendable table leg including a first outer housing, a first inner housing, and a first actuation mechanism to selectively extend and retract the first inner housing relative to the first outer housing, a second extendable table leg including a second outer housing, a second inner housing, and a second actuation mechanism to selectively extend and retract the second inner housing relative to the second outer housing, a motor configured to drive the first actuation mechanism to selectively extend and retract the first inner housing relative to the first outer housing, and a linkage coupling the motor to the second actuation mechanism such that the motor is configured to drive the second actuation mechanism in unison with the first actuation mechanism.