22 patents in this list

Updated:

Modern standing desk designs must precisely synchronize multiple lifting columns while managing loads up to 150kg across variable heights from 60cm to 130cm. The challenge intensifies with asymmetric weight distribution, where even small timing differences between actuators can create binding forces that stress components and compromise smooth operation.

The fundamental engineering challenge lies in maintaining precise synchronization between lifting mechanisms while accommodating varying loads and preventing mechanical binding during height transitions.

This page brings together solutions from recent research—including telescoping leg designs with integrated feedback systems, load-sensing adjustment mechanisms, and modular architectures that optimize component synchronization. These and other approaches focus on creating reliable, smooth transitions while maintaining stability across the full range of motion.

1. Synchronous Lifting Mechanism for Desk Bed with Collision Prevention via Position Offset Coordination

乐歌人体工学科技股份有限公司, LOCTEK ERGONOMIC TECHNOLOGY CO LTD, 2023

Synchronous lifting control for a desk bed that allows adjusting the height of both the bed and desk simultaneously while preventing collision. The control involves comparing the lifting positions of the desk and bed, calculating the offset, and then coordinating the motors to raise/lower the desk and bed together with the calculated offset to maintain a safe distance between them.

CN113907513B-patent-drawing

2. Electric Height-Adjustable Desk with User-Assembly Frame and Slidable Drawer Mechanism

LOCTEK ERGONOMIC TECHNOLOGY CORP., 2022

An electric height-adjustable desk that can be assembled by a user after purchase, bringing good experiences to the users. The desk includes a frame, an outer frame, a connection rod perpendicular to the crossbar, and a drawer slidably connected in the mounting groove.

3. Height-Adjustable Workstation with Synchronized Upper and Lower Desk Movement and Protruding Upper Desk Design

aeris GmbH, 2022

A height-adjustable workstation designed for quick transitions between seated and standing positions, promoting active working. The workstation features an upper and lower desk attached to a height-adjustable frame. The upper desk protrudes into the lower desk's work area, allowing an ergonomic seated position without obstruction from the upper desk when standing. The height adjustment is synchronized, so the upper desk moves above the lower desk as the frame raises.

US20220386771A1-patent-drawing

4. Adjustable Screen Support Frame with Rotating and Movable Support Member Incorporating Friction and Engagement Mechanisms

OXTI CORPORATION, 2022

A screen support frame that enables adjustment of the screen's vertical position, angle, and rotation. The frame includes a rotating and movable support member connected to the base. The support member features a rotating portion with protrusions and stops that engage with holes and recesses to allow rotation. It also has a moving portion with projections and friction members that engage with tracks and troughs to facilitate vertical movement. A screen fixing portion attaches to the projection and includes adjustable elastic and friction members for screen angle adjustment. The frame enclosure has friction tracks that engage the friction members to increase friction and prevent unintended movement. This design allows for vertical, rotational, and angular adjustment of the screen.

5. Height-Adjustable Table with Lever-Activated Elevation Mechanism

Linak A/S, 2022

Height-adjustable tables/desks that are easy to adjust. The tables/desks are attached to a housing with a lever arm extending from a body portion that allows the user to initiate raising and lowering of the desk.

US11259630B2-patent-drawing

6. Height-Adjustable Desk with Synchronous Computer Cabinet Linkage Mechanism

ZHEJIANG DONGZU INTELLIGENT FURNITURE MANUFACTURING CO LTD, ZHEJIANG DONGZU INTELLIGENT FURNITURE MFG CO LTD, 2021

A height-adjustable desk with a unique linkage mechanism that allows the computer cabinet to move synchronously with the work surface when the desk is raised or lowered. This keeps the relative position of the computer monitor and keyboard consistent as the desk height changes. The linkage is achieved using rotatable linkage structures connecting the bottom of the desk and the computer cabinet.

7. Smart Desk with Synchronized Height Adjustment via Rack and Pinion Mechanism and Centralized Control Module

HENAN NUOER FURNITURE MANUFACTURING CO LTD, HENAN NUOER FURNITURE MFG CO LTD, 2021

Smart desk with synchronized height adjustment using a rack and pinion mechanism, electric motors, and a control module. The desks have motors and racks on opposite sides that can raise and lower the desk height. A central control module coordinates the height adjustment using a touch screen. This allows simultaneous, precise height synchronization between desks, improving efficiency and accuracy compared to manual adjustment. The synchronized height feature is particularly useful in environments like schools where coordinated desk heights are desired.

8. Electric Lifting Desk with Three-Section Telescopic Nested Tube Legs

Jiaxing Haihong Mechanical and Electrical Technology Co., Ltd, 2020

An electric lifting desk with three-section legs reduces weight and cost compared to conventional electric desks. The legs are made of nested aluminum or plastic tubes with an interconnected cavity. An electric pushing rod retracts to extend the legs. The smallest inner tube nests inside the middle tube, which nests inside the largest outer tube. This allows the legs to telescope out and retract. The nested tube design saves weight compared to a solid leg and allows using smaller smaller-diameter tubes. The nested legs can also have a smaller motor and electric system compared to a single-column desk.

9. Lifting Desk with X-Shaped Supports and Adjustable Sliding Upper Ends for Load-Responsive Stability

Shenzhen Minicute Technology Co. Ltd., 2020

A lifting desk with adjustable lifting power to prevent instability and manual lifting issues caused by varying desk loads. The desk has X-shaped lifting supports with articulated middle sections connecting the upper and lower ends. The upper end of each X-section slides on the desk support and the lower end articulates to the leg. This allows the lifting power to be adjusted by sliding the upper end up or down on the support based on the desk load.

10. Synchronized Desk and Monitor Height Adjustment System with Transceiver Communication and User Position Detection

CKnapp Sales, Inc. d/b/a VIVO, 2020

Automatic height adjustment system for desks and monitors that synchronizes the height adjustments of both to eliminate the need for manual adjustments. The system uses a transceiver to communicate height commands between the desk and monitor controllers. A user's position is detected using a camera and sent to the desk controller. It then sends a height adjustment command to the desk drive assembly. The monitor controller receives this command and adjusts the monitor height synchronously with the desk. This keeps the optimal viewing height as the desk height changes.

11. Adjustable Height Desk with Independent Dual Motor System and Synchronization Mechanism

김지연, KIM GIYOUN, 2020

Adjustable height desk that allows users to easily switch between standing and sitting positions. The desk has motors on both sides that can independently adjust the height. A main switch synchronizes both motors to raise or lower the desk as a whole. If the sides don't match horizontally after adjustment, an auxiliary switch lets one side move separately to fine-tune the alignment. This allows customizing the desk height for ergonomics and comfort while working in either stance.

KR20200000703U-patent-drawing

12. Height-Adjustable Desk and Chair with Synchronized Motorized Lifting Mechanism

JIANGSU PROVINCIAL CENTER FOR DISEASE PREVENTION AND CONTROL, 2019

Height-adjustable intelligent desk and chair that can automatically adjust the height of the desk and chair to match the user's body dimensions. The desk has lifting motors on the legs and drawer sides, and the chair has a lifting motor on the seat. The desk and chair heights are synced using a control panel and motors. A power supply provides the necessary electrical power. This allows users to easily customize the desk and chair heights for optimal ergonomics and reduce the need for manual adjustment.

13. Height-Adjustable Desk with Scissor-Linked Folding Legs and Pneumatic Lift Mechanism

HANGZHOU LANDA CRAFTS CO., LTD., 2019

A compact height-adjustable desk that can be folded flat when not in use. The desk has a desktop platform, a base frame, and two sets of scissor-linked support legs. The legs pivot and fold inwards when the desk is lowered. To compactly fold the desk, the legs pivot and fold inwards when the desk is lowered. A pneumatic cylinder and actuating lever are used to lift the desk. The lever pivots at the desk and base frame, with the cylinder pivoting at the desk. This allows a large torque to lift the desk when folded. The lever's corner acts as the pivot, fitting compactly when folded. The folding mechanism allows the desk to adapt to users of different heights and work postures, preventing occupational diseases. The compact folding allows the desk to be placed on an existing desk without obstruction.

14. Desktop Workstation with Sensor-Driven Variable Height Adjustment and Movement Analysis

FELLOWES, INC., 2018

Variable height desktop workstation system that encourages users to move more while working by providing suggestions to raise, lower, and walk around the desk based on sensors detecting movement on the surface. The system has a lift mechanism to raise and lower the desk, surface movement sensors to detect user activity, and a control unit to analyze the sensor data and suggest actions. It can also have a motor to automatically move the desk based on the analysis.

US10114352B2-patent-drawing

15. Standing Desk with Adjustable Height and Multi-Directional Pivoting Lift Mechanism

INDUSTRY ACADEMIC COOPERATION FOUNDATION OF KYUNGNAM UNIV, INDUSTRY-ACADEMIC COOPERATION FOUNDATION OF KYUNGNAM UNIVERSITY, 경남대학교 산학협력단, 2018

A standing desk with adjustable height and angle for ergonomic flexibility. The desk has a recessed lift frame below the desktop surface with a fixed plate and a rotating lift plate that can move up and down while also pivoting left, right, and forward/backward. Three parallel linear actuators lift and lower the plate while allowing rotation. A control unit lets the user save and retrieve custom angles and heights for the plate. This allows adjusting the plate position in multiple directions, not just height, for optimized ergonomics.

KR20180096133A-patent-drawing

16. Scissor Lift Mechanism Portable Desk with Adjustable Height and Friction-Reducing Rail System

John Failing, 2017

Portable adjustable-height standing desk that allows office workers to stand while working and gain the benefits of breaks from sitting. The standing desk can be placed on top of a regular desk and has an adjustable height range. It has a base, intermediate, and upper frame assembly. The lower links of the scissor lift mechanism are fixed to the base frame rail and the upper links have rollers that travel in the rail. This reduces friction. In the power version, electric motors with synchronized ball screws raise/lower the desk. In the manual version, springs bias the desk up and a lock holds it at a lower height.

US2017196351A1-patent-drawing

17. Desk Height Adjustment Mechanism with Guide Members and Actuator for Retrofitting Stationary Desks

(), 2016

Desk height adjustment device to prevent adult diseases by converting existing desks into adjustable height desks. It allows users to stand up and work at the desk. The device consists of guide members, a base member, and a height adjustment member like a pneumatic cylinder, hydraulic cylinder, or actuator. The guide members attach to the desk legs, the base member connects to the bottom of the desk, and the adjustment member moves the desk top. A switch controls the height adjustment. By adding this conversion kit to an existing desk, users can adjust the desk height for sitting and standing without buying a new adjustable desk.

KR20160033374A-patent-drawing

18. Workstation with Automated Height, Depth, and Horizontal Pivot Adjustments Using User-Responsive Control System

Léon DesRoches, Nancy Lee Black, 2014

A workstation that automatically adjusts the height and depth of the tabletop to provide ergonomic benefits for users. The workstation has vertical and horizontal adjuster mechanisms to move the tabletop between standing and sitting heights. It also has a rotator to pivot the tabletop horizontally around the user. A controller detects user devices and profiles to customize the motion parameters like speed and range. This aims to automatically alternate between seated and standing positions, and pivot the tabletop around the user, based on user preferences to promote movement and reduce sedentary risks.

19. Motorized Desk System with Independently Adjustable and Synchronized Display Stand Mechanisms

ABB AB, 2014

Motorized operator desk system with synchronized, independently adjustable display stands. The desk has a work surface and a display shelf. Each display stand has individual, synchronized motorized inclination and horizontal adjustment mechanisms. This allows displays to be positioned independently and the inclination synchronized. It enables flexible display placement and adjustment without constraining the layout to a straight line. The desk also has motorized pedestal adjustment for horizontal positioning of the display shelf.

US8783193B2-patent-drawing

20. Modular Furniture System with Adjustable Parallel Legs and Interchangeable Sub-Surfaces

Brian Frazier, 2007

Modular furniture system with adjustable work surfaces that allows customization and flexibility in workstation configurations. The furniture has parallel legs that can be raised and lowered, with intermediary sub-surfaces connecting the legs to the main work surfaces. This allows attaching different top surfaces or configuring leg orientations using the pre-arranged attachment points on the sub-surfaces. A cantilevered arm can also be added with its own top surface attached via the sub-surfaces. This enables adjustable dual-surface setups. The legs, sub-surfaces, and top surfaces can be interchanged to tailor the workstation to user needs.

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The patents discussed here demonstrate different methods of accomplishing synchronous adjustments in standing workstations. While some concentrate on the desk structure and lifting mechanics in and of themselves, others deal with certain parts like leg designs or screen support.