Collapsible portable child's play-pen

Abstract From the Canadian patent

A collapsible, portable child's play-pen which may be foldably collapsed, onto two half-members which are pivotably coupled together along a first axis and which together form a base for the play-pen and which may then be, subsequently folded together to form a compact portable unit without the use, of tools or awkward collapsing or erecting procedures. A pair of frame members are pivotably coupled to the half-members proximate opposite but parallel sides of the base, and are adapted to support a flexible sheet around the periphery of the base when the play-pen is in the open position to thereby form a plurality of vertical walls. The frame members in the vertical position are each …