Patent ID: 6079689
Filing Date: 2000-06-27
Classification: A47B,F16M

Abstract:
A mechanical arm mechanism and user surface members in which the arm mechanism supports and moves the user surface members in arcuate paths of travel between a first and second position located remotely from each other at opposite ends of the path of travel comprising:a fixed support structure having at least a first and second fixed base pivot means attached thereto at spaced distances from each other;a primary user surface member;at least one secondary user surface member;at least a first and second swingable arm means, each having one end pivotally connected to the first and second fixed base pivot means respectively, each arm means swinging about it respective base pivot means when the user surface members are moved in their paths of travel between the first and second position;opposite ends of the first and second swingable arm means being connected to a first and second movable pivot means attached to a back side of the primary user surface member;a third swingable arm means having one end pivotally connected to a third movable pivot means attached to the secondary user surface member and an opposite end pivotally connected to a base pivot means about which the third swingable arm means swings when the user surface members are moved in their paths of travel between the first and second position.