Powered Lifting Table

Abstract

A lifting table with a large height adjustment range is provided. The lifting table includes two opposing leg assemblies that each include a first leg portion and a second leg portion. The first leg portion and the second leg portion are hingedly coupled. An end of each of the first leg portion is mounted to a track and configured to move along the track to adjust the height of the table. As the first leg portion moves along the track, the angle of the first leg portion relative to the second leg portion changes.

1 . A lifting table comprising:
 a tabletop;   a first track assembly, disposed along a bottom of the tabletop and comprising a first adjustment screw;   the second track assembly, disposed along the bottom of the tabletop and comprising a second adjustment screw;   a first leg assembly, comprising:
 a first leg assembly first portion, comprising:
 a Y-shaped first leg assembly first portion first end; and 
 a first leg assembly first portion second end; and 
 
 a first threaded receiver, coupled to the first leg assembly first portion first end and comprising a first threaded portion configured to receive the first adjustment screw; and 
   a second leg assembly, comprising;
 a second leg assembly first portion, comprising:
 a second leg assembly first portion first end; and 
 a second leg assembly first portion second end; and 
 
 a second threaded portion receiver, coupled to the second leg assembly first portion first end and comprising a second threaded portion configured to receive the second adjustment screw. 
   
     
     
         2 . The lifting table of  claim 1 , wherein:
 the first track assembly further comprises:
 a first assembly first sliding track; 
   the second track assembly further comprises:
 a second assembly first sliding track; 
   the first threaded receiver further comprises:
 a first sliding surface, translationally coupled to the first assembly first sliding track to allow the first leg assembly first portion first end to translate relative to the first assembly first sliding track; and 
   the second threaded receiver further comprises:
 a second sliding surface, translationally coupled to the second assembly first sliding track to allow the second leg assembly first portion first end to translate relative to the second assembly first sliding track. 
   
     
     
         3 . The lifting table of  claim 2 , wherein:
 the first leg assembly further comprises a first leg assembly second portion, hingedly coupled to the tabletop and coupled at a first angle to the first leg assembly first portion; and   the second leg assembly further comprises a second leg assembly second portion, hingedly coupled to the tabletop and coupled at a second angle to the second leg assembly first portion.   
     
     
         4 . The lifting table of  claim 3 , wherein the first leg assembly second end comprises a first foot and the second leg assembly second end comprises a second foot. 
     
     
         5 . The lifting table of  claim 4 , wherein the first leg assembly second portion is coupled to the first leg assembly first portion between the first leg assembly first end and the first leg assembly second end. 
     
     
         6 . The lifting table of  claim 1 , wherein the Y-shaped first leg assembly first portion first end comprises:
 a first end first side; and   a first end second side, and wherein the threaded receiver is coupled to first leg assembly first portion first end between the first end first side and the first end second side.   
     
     
         7 . A lifting table comprising:
 a tabletop;   a first track assembly, disposed along a bottom of the tabletop and comprising a first adjustment screw;   a second track assembly, disposed along the bottom of the tabletop and comprising a second adjustment screw;   a first motor, configured to turn the first adjustment screw;   a second motor, configured to turn the second adjustment screw;   a first leg assembly, comprising:
 a first leg assembly first portion, comprising:
 a first leg assembly first portion first end; and 
 a first leg assembly first portion second end; and 
 
 a first threaded receiver, comprising a first threaded portion configured to receive the first adjustment screw; and 
   a second leg assembly, comprising;
 a second leg assembly first portion, comprising:
 a second leg assembly first portion first end; and 
 a second leg assembly first portion second end; and 
 
 a second threaded portion receiver, comprising a second threaded portion configured to receive the second adjustment. 
   
     
     
         8 . The lifting table of  claim 7 , wherein the first track assembly and the second track assembly are both disposed lengthwise along the bottom of the tabletop. 
     
     
         9 . The lifting table of  claim 8 , wherein:
 the first track assembly comprises a first assembly first sliding track of a first length, the first length being more than half a length of the tabletop; and   the second track assembly comprises a second assembly first sliding track of a second length, the second length being more than half the length of the tabletop.   
     
     
         10 . The lifting table of  claim 9 , wherein the first length and the second length are substantially equal lengths. 
     
     
         11 . The lifting table of  claim 9 , wherein:
 The first track assembly further comprises a first assembly second sliding track of the first length, wherein the first adjustment screw is disposed between the first assembly first sliding track and the first assembly second sliding track; and   The second track assembly further comprises a second assembly second sliding track of the second length, wherein the second adjustment screw is disposed between the second assembly first sliding track and the second assembly second sliding track.   
     
     
         12 . The lifting table of  claim 11 , wherein the first threaded receiver further comprises:
 a first receiver first sliding surface, translationally coupled to the first assembly first sliding track; and   a first receiver second sliding surface, translationally coupled to the first assembly second sliding track.   
     
     
         13 . The lifting table of  claim 12 , wherein the first threaded portion is disposed between the first receiver first sliding surface and the first receiver second sliding surface. 
     
     
         14 . A lifting table comprising:
 a tabletop;   a first track assembly, disposed lengthwise along a bottom of the tabletop and comprising:
 a first assembly first sliding track of a first length, the first length being more than half a length of the tabletop; 
 a first adjustment screw; 
   a second track assembly, disposed lengthwise along the bottom of the tabletop and comprising:
 a second assembly first sliding track; 
 a second adjustment screw; 
   a first leg assembly, comprising:
 a first leg assembly first portion, comprising:
 a first leg assembly first portion first end; and 
 a first leg assembly first portion second end; and 
 
 a first threaded receiver, comprising a first threaded portion configured to receive the first adjustment screw; and 
   a second leg assembly, comprising;
 a second leg assembly first portion, comprising:
 a second leg assembly first portion first end; and 
 a second leg assembly first portion second end; and 
 
 a second threaded portion receiver, comprising a second threaded portion configured to receive the second adjustment. 
   
     
     
         15 . The lifting table of  claim 14 , wherein the first length and the second length are substantially equal lengths. 
     
     
         16 . The lifting table of  claim 14 , wherein the first leg assembly first portion first end comprises:
 a first end first side; and   a first end second side.   
     
     
         17 . The lifting table of  claim 16 , wherein the first threaded receiver is disposed between the first end first side and the first end second side. 
     
     
         18 . The lifting table of  claim 14 , further comprising:
 a first motor, configured to turn the first adjustment screw;   a second motor, configured to turn the second adjustment screw.   
     
     
         19 . The lifting table of  claim 18 , wherein the first leg assembly first portion is configured to move between a first position and a second position, wherein the first position is on a first side past a halfway lengthwise point of the tabletop, and wherein the second position is on a second side past the halfway lengthwise point of the tabletop. 
     
     
         20 . The lifting table of  claim 14 , wherein the first adjustment screw is a first screw length, the first screw length being more than half a length of the tabletop.