High chair

Abstract

A high chair features various modes of adjustability and enhanced utility. The height of the chair can be adjusted using a single hand that engages a rear handle. The height of a seat platform of the chair can be adjusted separately relative to the tray. The tray itself is ergonomically designed for the benefit of the caregiver. A removable tray liner facilitates after-meal clean-up. Wheels on the underside of the tray ease fore/aft adjustment. A pivoting back rest of the chair minimizes rearward shift of the center of gravity of the occupied chair, thus requiring a smaller chair footprint. Further, an accessory bar pivoted to a seat back portion of the chair provides readily accessible entertainment.

1 . A tray comprising: 
 a central portion; and    a raised rim surrounding the central portion, and    wherein a portion of the rim has an undulate height profile.    
   
   
       2 . A tray according to  claim 1 , wherein a front portion of the rim has an undulate height profile.  
   
   
       3 . A tray according to  claim 1 , wherein the tray is adapted to be removably supported at a front of a chair for access by the chair occupant.  
   
   
       4 . A tray according to  claim 1 , wherein the front portion of the rim comprises a medial portion flanked by two rest portions that are lower than the medial portion.  
   
   
       5 . A tray according to  claim 4 , wherein the front portion of the rim comprises two shoulder portions that are higher than the two rest portions, each of the rest portions being flanked by the medial portion and a respective shoulder portion.  
   
   
       6 . A tray according to  claim 5 , wherein the rest portions have gently curved upper surfaces and rounded upper edges.  
   
   
       7 . A tray adapted to be removably supported at a front of a chair for access by the chair occupant, the tray comprising: 
 a top side;    an underside, and    at least one wheel mounted to the underside to rotate for movably supporting the tray on a bearing surface of the chair.    
   
   
       8 . A tray according to  claim 7 , wherein the tray comprises a plurality of wheels mounted to the underside to rotate about parallel axes for movably supporting the tray on a bearing surface of the chair.  
   
   
       9 . A tray according to  claim 8 , wherein the plurality of wheels comprises three wheels, two of the wheels being laterally spaced and rotatable about a common axis, and the third wheel being centrally located and rotatable about an axis offset from the common axis.