Foldable playard

Abstract

The folding playard consists of a frame and a fabric enclosure mounted on the frame. The frame is composed of an array of scissoring tube pairs making up the sides of the structure. The fabric enclosure has the same number of sides as the frame and an integral bottom floor. To lock the playard in the “in use” position, a plastic hook clip, which is connected to the bottom floor fabric and the top of the structure is engaged. This strap ensures the tubes are locked in the “in use” position and the structure cannot collapse.

We claim: 
     
       1. A playard comprising
 a collapsible frame having a plurality of scissoring tube pairs vertically extending and forming sides arranged in a generally polygonal manner about a vertical axis to form the sides of the playard, each of the tube pairs coupled by means of a pivot joint disposed midway between the ends of each tube in the pair;   a plurality of top knuckle linkages that couple the top end of each tube in each tube pair to the top end of the tube in the tube pair immediately adjacent to it;   a plurality of bottom knuckle linkages that couple the bottom end of each tube in each tube pair to the bottom end of the tube in the tube pair immediately adjacent to it;   a fabric enclosure having an open top, a floor, the same number of sides as the frame, and a fabric top railing connected to the sides at the top thereof and affixed to the top knuckle linkages, thereby setting a fixed limit on lateral expansion of the frame; and   frame tensioning means composed of a plurality of depending fabric straps, each strap connected at one end to a top knuckle linkage and formed and positioned to encircle the bottom knuckle linkage disposed directly below it and demountably attach to the playard to create a vertical tension on the frame holding the frame upright when fastened and allowing the frame to collapse when released.   
     
     
       2. The playard according to  claim 1  wherein each of the top and bottom knuckle linkages comprises a pair of tube receiving sockets connected to each other by means of a hinge. 
     
     
       3. The playard according to  claim 2  wherein the hinge is composed of a pair of connected tongue and groove casings, the tongues having aligned holes and being secured to each other by means of a rivet pin that extends through the aligned holes. 
     
     
       4. The playard according to  claim 3  additionally comprising a dog legged shaped spacer body disposed between the pivot joint and each of the tube receiving sockets, creating a knuckle linkage having a substantially parabolic aspect. 
     
     
       5. The playard according to  claim 1  wherein the floor of the fabric enclosure is composed of a non-mesh nylon material and the sides of the fabric enclosure are composed of a woven nylon mesh material. 
     
     
       6. The playard according to  claim 2  wherein the floor of the fabric enclosure is composed of a non-mesh nylon material and the sides of the fabric enclosure are composed of woven nylon mesh material. 
     
     
       7. The playard according to  claim 1  wherein the fabric top railing is composed of a two strips of uni-directional weave nylon webbing between which is disposed the mesh side fabric of the enclosure. 
     
     
       8. The playard according to  claim 7  wherein the fabric top railing is affixed to the top knuckle linkages by rivets. 
     
     
       9. The playard according to  claim 1  wherein the vertically depending fabric straps of the frame tensioning means are composed of nylon, heavyweight polypropylene or polyester. 
     
     
       10. The playard according to  claim 9  wherein the frame tensioning means includes fastening means is selected from the group consisting of clips, buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       11. The playard according to  claim 10  wherein the fastening means is a side release buckle. 
     
     
       12. A playard comprising:
 a collapsible frame having a plurality of scissoring tube pairs vertically extending and forming sides arranged in a generally polygonal manner to form the sides of the playard;   a plurality of top knuckle linkages that couple the top end of each tube in each tube pair to the top end of the tube in the tube pair immediately adjacent to it;   a plurality of bottom knuckle linkages that couple the bottom end of each tube in each tube pair to the bottom end of the tube in the tube pair immediately adjacent to it;   the top and bottom knuckle linkages being composed of a pair of tube-receiving sockets connected to each other by means of a hinge, and a dog-leg shaped spacer body disposed between each tube receiving socket and the hinge;   the hinge being composed of a pair of connected tongue and groove casings, the tongues having aligned holes and being secured to each other by a rivet pin that extends through the aligned holes;   a mesh fabric enclosure having an open top, a non-mesh floor, the same number of sides as the frame, and a fabric top railing connected to the top of the mesh fabric sides and affixed to the top knuckle linkages, thereby setting a fixed limit on lateral expansion of the frame;   the non-mesh floor forming a tension member between the bottom knuckle linkages of the frame when fully assembled; and   frame tensioning means to maintain the collapsible frame in an upright position.   
     
     
       13. The playard according to claim 12 wherein the frame tensioning means comprises a plurality of straps each connected at its top end to a top knuckle linkage and extending vertically at an intersection of the side panels. 
     
     
       14. The playard according to claim 13, wherein each strap is formed and positioned to be able to encircle the bottom knuckle linkage disposed directly below it. 
     
     
       15. The playard according to claim 13, wherein each strap is formed and positioned to be able to encircle the bottom knuckle linkage disposed directly below it. 
     
     
       16. The playard according to claim 13, wherein the plurality of straps are demountably attached to the playard to create a vertical tension on the frame holding the frame upright when fastened and allowing the frame to collapse when released. 
     
     
       17. The playard according to claim 13, wherein the plurality of straps are demountably attached to the playard. 
     
     
       18. The playard according to claim 14, wherein each strap is provided with a fastener selected from the group consisting of buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       19. The playard according to claim 15, wherein each strap is provided with a fastener selected from the group consisting of buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       20. The playard according to claim 16, wherein each strap is provided with a fastener selected from the group consisting of buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       21. The playard according to claim 17, wherein each strap is provided with a fastener selected from the group consisting of buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       22. The playard according to claim 18, wherein the mesh fabric enclosure is composed of woven nylon mesh material. 
     
     
       23. The playard according to claim 19, wherein the mesh fabric enclosure is composed of woven nylon mesh material. 
     
     
       24. The playard according to claim 20, wherein the mesh fabric enclosure is composed of woven nylon mesh material. 
     
     
       25. The playard according to claim 21, wherein the mesh fabric enclosure is composed of woven nylon mesh material. 
     
     
       26. The playard according to claim 22, wherein the fabric top railing is composed of two strips of uni-directional weave nylon webbing between which is disposed the mesh side fabric of the enclosure. 
     
     
       27. The playard according to claim 23, wherein the fabric top railing is composed of two strips of uni-directional weave nylon webbing between which is disposed the mesh side fabric of the enclosure. 
     
     
       28. A playard comprising:
 a collapsible frame having a plurality of scissoring tube pairs vertically extending and forming sides arranged in a generally polygonal manner to form the sides of the playard, each of the tube pairs coupled by means of a pivot joint disposed midway between the ends of each tube in the pair;   a plurality of top knuckle linkages that couple the top end of each tube in each tube pair to the top end of the tube in the tube pair immediately adjacent to it;   a plurality of bottom knuckle linkages that couple the bottom end of each tube in each tube pair to the bottom end of the tube in the tube pair immediately adjacent to it;   a mesh fabric enclosure having an open top, a floor, the same number of sides as the frame, and a fabric top railing connected to the sides of the mesh fabric enclosure and affixed to the top knuckle linkages, thereby setting a fixed limit on lateral expansion of the frame; and   frame tensioning means composed of a plurality of depending fabric straps, each strap connected at one end to a top knuckle linkage and formed and positioned to encircle the bottom knuckle linkage to hold the frame upright when fastened and allow the frame to collapse when released, each of the top and bottom knuckle linkages comprising a pair of tube receiving sockets connected to each other by means of a hinge.   
     
     
       29. The playard according to claim 28 wherein the hinge is composed of a pair of connected tongue and groove casings, the tongues having aligned holes and being secured to each other by means of a rivet pin that extends through the aligned holes. 
     
     
       30. The playard according to claim 29 additionally comprising a dog legged shaped spacer body disposed between the hinge and each of the tube receiving sockets, creating a knuckle linkage having a substantially parabolic aspect. 
     
     
       31. The playard according to claim 28, wherein the floor of the fabric enclosure is composed of a non-mesh nylon material and the sides of the fabric enclosure are composed of a woven nylon mesh material. 
     
     
       32. The playard according to claim 30 wherein the floor of the fabric enclosure is composed of a non-mesh nylon material and the sides of the fabric enclosure are composed of a woven nylon mesh material. 
     
     
       33. The playard according to claim 31 wherein the fabric top railing is composed of two strips of uni-directional weave nylon webbing between which is disposed the mesh side fabric of the enclosure. 
     
     
       34. The playard according to claim 32 wherein the fabric top railing is composed of two strips of uni-directional weave nylon webbing between which is disposed the mesh side fabric of the enclosure. 
     
     
       35. The playard according to claim 28 wherein the straps of the frame tensioning means are fabric straps and are composed of nylon, polypropylene or polyester. 
     
     
       36. The playard according to claim 35, wherein the straps of the frame tensioning means include fastening means selected from the group consisting of clips, buckles, strap slides, strap adjusters, clasp buckles, side release buckles and quick release strap adjusters. 
     
     
       37. The playard according to claim 36, wherein the fastening means is a side release buckle.