Patent ID: 8438675
Filing Date: 2013-05-14
Classification: A61G,Y10S

Abstract:
1. A device for seat elevation, the device comprising: a horizontal base portion fixedly connected to a substantially vertical support portion; an elongated lift generator that extends and contracts along a longitudinal axis, the lift generator pivotally connected to the horizontal base portion; a plurality of elongate members pivotally connected to the vertical support portion, the plurality of elongate members including a first elongate member pivotally connected to the lift generator on a first side of the horizontal base portion; a drive shaft coupled to the first elongate member connecting the first elongate member to a second elongate member on a second side of the horizontal base portion, the drive shaft transferring rotational force delivered by the elongated lift generator from the first elongate member to the second elongate member; and a seat portion attached to a plurality of vertical seat supports positioned substantially perpendicular to the planar seat portion, the plurality of vertical seat supports pivotally connected to the plurality of elongate members; wherein as the lift generator extends, the plurality of elongate members guide the motion of the seat portion in a direction substantially parallel to the longitudinal axis of the lift generator from a first position, in which the seat portion is substantially horizontal and substantially centered over the base portion, to a second position, in which the seat portion is substantially perpendicular to the longitudinal axis of the lift generator and centered closer to the vertical support portion.