US-12622510-B2 - Electric height-adjustable desk

Abstract

Example height adjustable desks are disclosed herein. An example height adjustable desk includes telescoping legs, each telescoping leg including an upper section, a lower section, and an actuator, each telescoping leg having a first end and a second end; a drive system having a motor and a worm gear assembly having a worm and a worm wheel; gearboxes, each gearbox coupled to a respective telescoping leg; transmission shafts connected to the drive system and to the gearboxes wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to raise and lower; and a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, the first ends of the telescoping legs to interface with and support the desktop, wherein the desktop is formed by coupling two or more of the work surfaces.

Inventors

• Huang Chunrong
• Zhao Zhenpu

Assignees

• QIDONG VISION MOUNTS MANUFACTURING CO., LTD.
• CKnapp Sales, Inc.

Dates

Publication Date

20260512

Application Date

20231011

Priority Date

20220812

Claims (20)

1. 1 . A height adjustable desk comprising: telescoping legs, each telescoping leg including an upper section, a lower section, and an actuator, each telescoping leg having a first end and a second end; a drive system having a motor and a worm gear assembly having a worm and a worm wheel; gearboxes, each gearbox coupled to a respective telescoping leg; transmission shafts connected to the drive system and to the gearboxes, wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to raise and lower; and a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, the first ends of the telescoping legs to interface with and support the desktop, wherein the desktop is formed by coupling two or more of the work surfaces, the two or more of the work surfaces movable between a first configuration and a second configuration, wherein, in the first configuration, a first of the two or more work surfaces extends perpendicular to a second of the two or more work surfaces to form an L-shaped desktop and wherein, in the second configuration, the first of the two or more work surfaces extends along a line with the second of the two or more work surfaces to form a straight desktop, the desktop re-configurable in the first configuration and the second configuration for use.
2. 2 . The height adjustable desk of claim 1 , wherein one or more of the telescoping legs includes a support base.
3. 3 . The height adjustable desk of claim 1 , wherein each respective telescoping leg is positioned relative to a respective desktop section.
4. 4 . The height adjustable desk of claim 1 , further including connection frame coupled between adjacent ones of the telescoping legs, the connection frame including frame rods and a frame rod connector coupling the frame rods.
5. 5 . The height adjustable desk of claim 4 , wherein the connection frame is a first connection frame and the frame rod connector is a first frame rod connector, the desk further including a second connection frame, the second connection frame including a second frame rod connector, wherein the second frame rod connector is longer relative to the first frame rod connector.
6. 6 . The height adjustable desk of claim 4 , wherein the frame rod connector includes a groove, the frame rods to slide relative to the groove.
7. 7 . The height adjustable desk of claim 4 , wherein the frame rod connector is coupled to a first surface of the desktop.
8. 8 . The height adjustable desk of claim 1 , wherein each telescoping leg includes a screw assembly coupled within the respective telescoping leg.
9. 9 . The height adjustable desk of claim 1 , wherein each telescoping leg includes a gearbox coupled thereto.
10. 10 . The height adjustable desk of claim 1 , wherein the worm of the drive system is coupled between the motor and the worm wheel.
11. 11 . The height adjustable desk of claim 1 , wherein the worm includes a threaded portion, and the worm gear includes teeth that engage with the threaded portion of the worm.
12. 12 . The height adjustable desk of claim 1 , wherein the actuators of the telescoping legs include lead screw assemblies.
13. 13 . A height adjustable table comprising: telescoping legs structured to support a desktop, each telescoping leg including an actuator, each telescoping leg having a first end and a second end; a drive system having a motor, a worm, and a worm wheel; gearboxes, each gearbox coupled to a respective ones of the telescoping legs; transmission shafts connected to the drive system and to the gearboxes, the transmission shafts including a sync rod adjustable between a first length and a second length, wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to raise and lower; and a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, first ends of the telescoping legs to interface with the desktop, the first, second, and third work surfaces movable between an L-shaped configuration and a straight configuration, the desktop re-configurable in the L-shaped configuration and the straight configuration for use.
14. 14 . The height adjustable table of claim 13 , wherein the desktop includes a first side and a second side.
15. 15 . The height adjustable table of claim 14 , wherein the L-shaped configuration is a first L-shaped configuration, wherein the first side is longer than the second side in the first L-shaped configuration.
16. 16 . The height adjustable table of claim 15 , wherein the desktop is configurable in a second L-shaped configuration, wherein the first side is shorter than the second side in the second L-shaped configuration.
17. 17 . The height adjustable table of claim 14 , wherein the straight configuration is a first straight configuration, wherein the first side is longer than the second side in the first straight configuration.
18. 18 . The height adjustable table of claim 17 , wherein the desktop in the first straight configuration includes the first work surface, the second work surface, and the third work surface.
19. 19 . The height adjustable table of claim 17 , wherein the desktop is configurable in a second straight configuration, wherein the first side of the desktop in the second straight configuration is shorter than the first side of the desktop in the first straight configuration, and wherein the desktop includes two desktop sections in the second straight configuration.
20. 20 . The height adjustable table of claim 13 , further including connection frame coupled between adjacent ones of the telescoping legs, the connection frame including frame rods and a frame rod connector coupling the frame rods.

Description

RELATED APPLICATIONS This patent arises from the national stage of Chinese Application No. PCT/CN2023/012476, which was filed on Oct. 11, 2023, which claims priority to Chinese Application No. 202210970179.8, which was filed on Aug. 12, 2022. Chinese Application No. PCT/CN2023/012476 and Chinese Application No. 202210970179.8 are hereby incorporated herein by reference in their entirety. Priority to Chinese Application No. PCT/CN2023/012476 and Chinese Application No. 202210970179.8 are hereby claimed. FIELD OF THE DISCLOSURE This disclosure relates generally to desks and, more particularly, to a height adjustable desks. BACKGROUND In recent years, people have grown increasingly concerned with risks stemming from prolonged periods of sitting. Prolonged sitting has been associated with a number of health concerns, such as increased risk of heart disease, stroke, diabetes, and premature death, and overall deconditioning of the human body, including early muscle fatigue, back pain, and spinal issues. Standing desks and height adjustable desks have become popular alternatives to traditional sitting desks because they allow user to stand while utilizing the desk's surface. A standing desk is a desk that is of sufficient height to enable a user to utilize the desk while in a standing (e.g., upright) position, whereas a height adjustable desk is a desk that allows the user to transition between a sitting position and a standing position by adjusting a height of the adjustable desk. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic illustration of an example frame of an example height adjustable desk constructed in accordance with teachings of this disclosure. FIG. 2 is another schematic illustration of the example frame of the example height adjustable desk of FIG. 1. FIG. 3 is an enlarged view of a portion of the example frame of the example height adjustable desk of FIGS. 1-2. FIG. 4 is an enlarged view of another portion of the example frame of the example height adjustable desk of FIGS. 1-2. FIG. 5 illustrates another view of the height adjustable desk of FIGS. 1-4. FIG. 6 illustrates a cross-section view of the height adjustable desk of FIGS. 1-5. FIG. 7 is a schematic illustration of an example drive system of the height adjustable desk of FIGS. 1-6. FIG. 8 is schematic illustration of an example sync rod in accordance with teachings of this disclosure. FIG. 9 is schematic illustration of an example drive system in accordance with teachings of this disclosure. FIG. 10 illustrates an example configuration of the height adjustable desk of FIGS. 1-6 in accordance with teachings of this disclosure. FIG. 11 illustrates another example configuration of the height adjustable desk of FIGS. 1-6 in accordance with teachings of this disclosure. FIG. 12 illustrates yet another example configuration of the height adjustable desk of FIGS. 1-6 in accordance with teachings of this disclosure. In general, the same reference numbers will be used throughout the drawing(s) and accompanying written description to refer to the same or like parts. The figures are not necessarily to scale. DETAILED DESCRIPTION In recent years, standing desks have gained popularity due to the ergonomic and/or health benefits such desks provide to a user. While standing desks are a healthier alternative to traditional sitting desks, continuous standing is often an undesirable alternative to continuous sitting. As such, adjustable (e.g., convertible, sit-to-stand, lift, height adjustable) desks/tables continue to gain popularity amongst desk users. A height adjustable desk is a type of table that can lift and lower a table body. Height adjustable desks are different from ordinary desks. A height adjustable desk typically includes a plurality of adjustable legs (e.g., bars, columns, arms, etc.) that support a desktop (e.g., tabletop, table board, etc.) and a height adjustment mechanism to enable height adjustment of the desktop. Height adjustable desks provide a great benefit to users who desire to alternate between sitting and standing within any given day. Height adjustable desks allow the user to adjust the height of a desktop, enabling a user to work alternately between sitting and standing positions to reduce potential harm to the human body caused by prolonged sitting. In some examples, the height adjustable desk enables improved work efficiency. As more people have schoolwork, careers, and/or other activities that require continuous use of a computer, demand for height adjustable desks will continue to increase. With the popularity of online shopping, more people are customizing tableware and chairs online. Due to the different sizes and shapes of desktop customization, higher requirements are put forward for the adaptability of parts. Most height adjustable desks sold on the market today have a specific shape (e.g., configuration), and internal components are designed to be assembled into that shape. For example, currently, there are main