# US 10,869,549 B2 · Desk-mounted lifting platform

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- Number: US 10,869,549 B2
- Document ID: US10869549B2
- Status: Granted
- Kind: B2
- Application number: 15/861,756
- Filed: 2018-01-04
- Published: 2018-07-12
- Granted: 2020-12-22
- Earliest claimed: 2017-01-06
- Assignees: Loctek Inc.
- Applicants: Loctek Inc.
- Inventors: Lehong Xiang; Tao Lin; Fangyuan Li
- Web page: https://patentgrep.com/patent/US10869549B2

## CPC

- A47B 21/02: with vertical adjustable parts
- A47B 21/0314: {Platforms for supporting office equipment}
- F16M 11/046: {adapted to upward-downward translation movement}
- F16M 11/38: by folding {, e.g. pivoting or scissors tong mechanisms}
- A47B 9/16: with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs
- F16M 2200/08: Foot or support base
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)
- F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS

## Abstract

The present disclosure discloses a desk-mounted lifting platform comprising a workbench, an upper support and a low support. The workbench is connected to the upper support. A first lifting arm and a second lifting arm are arranged between the upper support and the lower support. The first lifting arm and the second lifting arm are X-shaped and hinged at an intersection thereof. An upper end of the first lifting arm is hinged with the upper support. A lower end of the first lifting arm is slidably fitted on the lower support. A lower end of the second lifting arm is hinged with the lower support. An upper end of the second lifting arm is slidably fitted on the upper support. A gas spring is arranged between the upper support and the lower support. The gas spring is used for providing a lifting force to lift the upper support.

## Claims

### Claim 1

A desk-mounted lifting platform comprises a workbench (1), an upper support (2) and a lower support (3), wherein the workbench (1) is connected to the upper support (2), a first lifting arm (6) and a second lifting arm (7) are arranged between the upper support (2) and the lower support (3), the first lifting arm (6) and the second lifting arm (7) are X-shaped and hinged at an intersection thereof, an upper end of the first lifting arm (6) is hinged with the upper support (2), a lower end of the first lifting arm (6) is slidably fitted on the lower support (3), a lower end of the second lifting arm (7) is hinged with the lower support (3), an upper end of the second lifting arm (7) is slidably fitted on the upper support (2), a gas spring (8) is arranged between the upper support (2) and the lower support (3), the gas spring (8) is used for providing a lifting force to lift the upper support (2), the upper support (2) is provided with a handle (5) to control the opening or closing of a valve of the gas spring (8) through a brake line, and an axis of the gas spring (8) intersects a working plane of the workbench (1) obliquely;
wherein one end of the gas spring (8) is hinged to an upper part of the first lifting arm (6), and the other end of the gas spring (8) is hinged to the upper support (2).

### Claim 2

A desk-mounted lifting platform comprises a workbench (1), an upper support (2) and a lower support (3), wherein the workbench (1) is connected to the upper support (2), a first lifting arm (6) and a second lifting arm (7) are arranged between the upper support (2) and the lower support (3), the first lifting arm (6) and the second lifting arm (7) are X-shaped and hinged at an intersection thereof, an upper end of the first lifting arm (6) is hinged with the upper support (2), a lower end of the first lifting arm (6) is slidably fitted on the lower support (3), a lower end of the second lifting arm (7) is hinged with the lower support (3), an upper end of the second lifting arm (7) is slidably fitted on the upper support (2), a gas spring (8) is arranged between the upper support (2) and the lower support (3), the gas spring (8) is used for providing a lifting force to lift the upper support (2), the upper support (2) is provided with a handle (5) to control the opening or closing of a valve of the gas spring (8) through a brake line, an axis of the gas spring (8) intersects a working plane of the workbench (1) obliquely, a bar (9) is connected to the upper part of the first lifting arm (6), a connecting arm (10) protruding downwards is connected to a bottom of the bar (9), one end of the gas spring (8) is hinged to a free end of the connecting arm (10), and the other end of the gas spring (8) is hinged to the upper support (2).

### Claim 3

A desk-mounted lifting platform comprises a workbench (1), an upper support (2) and a lower support (3), wherein the workbench (1) is connected to the upper support (2), a first lifting arm (6) and a second lifting arm (7) are arranged between the upper support (2) and the lower support (3), the first lifting arm (6) and the second lifting arm (7) are X-shaped and hinged at an intersection thereof, an upper end of the first lifting arm (6) is hinged with the upper support (2), a lower end of the first lifting arm (6) is slidably fitted on the lower support (3), a lower end of the second lifting arm (7) is hinged with the lower support (3), an upper end of the second lifting arm (7) is slidably fitted on the upper support (2), a gas spring (8) is arranged between the upper support (2) and the lower support (3), the gas spring (8) is used for providing a lifting force to lift the upper support (2), the upper support (2) is provided with a handle (5) to control the opening or closing of a valve of the gas spring (8) through a brake line, and an axis of the gas spring (8) intersects a working plane of the workbench (1) obliquely;
wherein the platform further comprises a keyboard support (4), a support frame (13) is connected to the upper support (2), a hanger (14) matched with the support frame (13) is connected to the keyboard support (4), and the hanger (14) is detachably connected with the support frame (13); and
wherein at least one hanging rod (15) is arranged on each of both outer side walls of the support frame (13), a hook (16) matched with the hanging rod (15) is arranged on the hanger (14), and locking screws (17) are arranged on a connection position between the hanger (14) and the support frame (13).