Gliding chair unit with left and right safety shields

A gliding chair unit comprising:

• a base frame including opposite left and right rods that extend in a longitudinal direction, and opposite front and rear rods that extend in a transverse direction relative to said longitudinal direction and that interconnect said left and right rods;
• an upper frame mounted slidably on said base frame, and including front and rear rods that are respectively disposed on said front and rear rods of said base frame, and left and right rods that extend in said longitudinal direction, that interconnect said front and rear rods of said upper frame, and that are respectively disposed adjacent to said left and right rods of said base frame, said upper frame being slidable on said base frame between a right position, in which said left rod of said upper frame is spaced apart from said left rod of said base frame in said transverse direction to define a left gap therebetween, and a left position, in which said right rod of said upper frame is spaced apart from said right rod of said base frame in said transverse direction to define a right gap therebetween;
• left and right seat members disposed securely on said upper frame adjacent to said left and right rods, respectively;
• and
• left and right safety shields fixed to and extending outwardly in said transverse direction from said left and right rods of said upper frame, respectively, such that when said upper frame is positioned at said right position, said left safety shield covers said left gap, and such that when said upper frame is positioned at said left position, said right safety shield covers said right gap.