Patent ID: 6445575
Filing Date: 2002-09-03
Classification: A47B,A47G,F16M,Y10S

Abstract:
A base that adjusts the elevation of a panel that has a backside, comprising:a fixed flap attached to the backside of the panel; a supporting flap assembly that supports the panel, the supporting flap assembly comprising a top flap and a fan-wheel, the top flap and fan-wheel having respective engagement mechanisms that are positioned proximate to each other; and a hinge that interconnects the fixed flap and the supporting flap assembly to permit the supporting flap assembly to be selectively positioned with respect to the fixed flap; and a pivot that couples the fan-wheel to the top flap to enable the fan-wheel to turn with respect to the top flap, the elevation of the base being adjustable by changing the extent to which the fan-wheel is turned with respect to the top flap, the respective engagement mechanisms of the top flap and the fan-wheel being selectively engageable with each other to maintain the fan-wheel in a position relative to the top flap.