Height adjustable desktop work surface

Abstract

In one example, a height adjustable desktop system is described that can include a work surface, a foot assembly and a linkage assembly that adjustably connects the work surface to the foot assembly allowing vertical adjustment of the work surface. The linkage assembly can include a pair of adjustment assemblies, each having a transverse linkage that maintains the work surface in a horizontal orientation as the work surface is elevated or lowered. A biasing mechanism, such as an extension spring or a torsion spring, biases the work surface toward the elevated position.

What is claimed is: 
     
         1 . A height adjustable desktop system, comprising:
 a first work surface defining an underside and including a first support bracket, and a second support bracket positioned on the underside of the work surface;   a first adjustment assembly including:
 a first glide assembly support coupled to the underside; 
 a first glide assembly slidable on the first glide assembly support; 
 a first linkage extending from a first connection end to a first foot end, the first connection end rotatably coupled to the first glide assembly; 
 a first transverse linkage rotatably coupled to the first support bracket and rotatably coupled to the first linkage; 
   a second adjustment assembly including:
 a second glide assembly support coupled to the underside; 
 a second glide assembly slidable on the second glide assembly support; 
 a second linkage extending from a second connection end to a second foot end, the second connection end rotatably coupled to the second glide assembly; and 
 a second transverse linkage rotatably coupled to the second support bracket and rotatably coupled to the second linkage; 
   a counterbalance mechanism including a biasing member extending from a biasing member first end to a biasing member second end, wherein the biasing member first end is coupled to one of the first glide assembly or the second glide assembly and the biasing member second end is coupled to the underside of the work surface;   wherein the first glide assembly is slidable on the first glide assembly support between a first position proximate to the first support bracket and a second position distal to the first support bracket; wherein the second glide assembly is slidable on the second glide assembly support between a first position proximate to the second support bracket and a second position distal to the second support bracket,   wherein the first linkage, second linkage, first transverse linkage, and second transverse linkage are extended when the first and second glide assemblies are positioned in the first position to position the work surface at an elevated position, wherein the first linkage, second linkage, first transverse linkage, and second transverse linkage are collapsed when the first and second glide assemblies are positioned in the second position to position the work surface at a lowered position.   
     
     
         2 . The height adjustable desktop system of  claim 1 , wherein the biasing member second end is coupled to one of the first support bracket and the second support bracket. 
     
     
         3 . The height adjustable desktop system of  claim 1 , wherein the biasing member is an extension spring. 
     
     
         4 . The height adjustable desktop system of  claim 1 , wherein the first support bracket and the first glide assembly support are arranged along a first axis on the underside. 
     
     
         5 . The height adjustable desktop system of  claim 4 , wherein the second support bracket and the second glide assembly support are arranged along a second axis on the underside. 
     
     
         6 . The height adjustable desktop system of  claim 1 , wherein the first foot end and the second foot end contact a desktop. 
     
     
         7 . The height adjustable desktop system of  claim 1 , further comprising a lock lever rotably coupled to the underside and configured to allow the work surface to transition between the lowered position and the elevated position. 
     
     
         8 . The height adjustable desktop system of  claim 1 , wherein the work surface defines a primary top surface opposite the underside. 
     
     
         9 . The height adjustable desktop system of  claim 8 , wherein the work surface includes a shelf defining a secondary top surface lower than the primary top surface. 
     
     
         10 . The height adjustable desktop system of  claim 9 , wherein the shelf includes an attachment bracket for positioning the secondary top surface below the primary top surface. 
     
     
         11 . The height adjustable desktop system of  claim 1 , wherein the adjustment assembly includes a torsion spring that is tensioned between the underside of the work surface and at least one of the first transverse linkage and the second transverse linkage as the work surface is lowered to bias the work surface toward an elevated position. 
     
     
         12 . The height adjustable desktop system of  claim 1 , wherein the counterbalancing mechanism can be configured to lift assist work surface elevation when a computer is located on the work surface. 
     
     
         13 . The height adjustable desktop system of  claim 1 , wherein the counterbalancing mechanism can be configured to lift assist work surface elevation when a display is located on the work surface.