Computer navigator armrest device

Abstract

A portable support tray attachable to a chair arm for accommodating a hand-movable computer navigation device. The support tray includes a tray component for supporting movement of the navigation device and a mount component for tightly circumferentially engaging the chair arm. A positional interface can be disposed between the tray component and the mount component for permitting planar movement and placement of the tray component in relation to the mount component. Angular vertical orientation of the tray component can be established and maintained as needed with a ramp member positionable beneath the tray component. The portable support tray here defined permits a user to ergonomically beneficially situate a custom armrest site for operating a computer navigation device such that muscle, tendon, ligament, and nerve distresses are at least reduced while navigation-device usage occurs.

1 . A portable support tray attachable to a chair arm for accommodating a hand-movable computer navigation device, the support tray comprising: 
 a) a tray component having a generally flat top surface for supporting movement of the computer navigation device; and    b) a mount component comprising an engagement member for tightly circumferentially engaging the chair arm such that the mount component is substantially immovable.    
     
     
         2 . A portable support tray as claimed in  claim 1  wherein the tray component additionally includes an upwardly projecting lip as a perimeter boundary for the flat top surface.  
     
     
         3 . A portable support tray as claimed in  claim 2  wherein the lip is discontinuous along at least one portion thereof for forming at least one generally flat lateral entry through said lip to the top surface of the tray component.  
     
     
         4 . A portable support tray as claimed in  claim 3  wherein the at least one generally flat lateral entry has a width dimension from about ⅛ to about ¼ inch.  
     
     
         5 . A portable support tray as claimed in  claim 3  wherein the at least one generally flat lateral entry has a width dimension from about 3 to about 4 inches.  
     
     
         6 . A portable support tray as claimed in  claim 1  additionally comprising a positional interface between the tray component and the mount component for permitting planar movement and placement of the tray component in relation to the mount component.  
     
     
         7 . A portable support tray as claimed in  claim 6  wherein the tray component and the mount component are releasably separable from each other and wherein the positional interface additionally releasably retains the tray component with the mount component.  
     
     
         8 . A portable support tray as claimed in  claim 7  wherein the positional interface comprises a plurality of respective hook and loop elements complimentarily positioned to each other on respective interfacing tray-component and mount-component surfaces for releasably retaining the tray component and mount component to each other in a plurality of planar placements relative each other.  
     
     
         9 . A portable support tray as claimed in  claim 1  wherein the top surface of the tray component is provided with an abrasive surface for traction with the computer navigation device.  
     
     
         10 . A portable support tray as claimed in  claim 1  additionally comprising a leveler for placement beneath the tray component for overcoming a sloping chair arm and maintaining the tray component in a generally horizontal plane.