Portable and collapsible stacking bins or crates

Claim 1

IN A CRATE OR CONTAINER, THE COMBINATION OF A BOTTOM UNIT COMPRISING A RECTANGULAR FRAME OF ROD-LIKE STOCK HAVING INTEGRAL FRONT, REAR AND END MEMBERS, A REAR WALL UNIT COMPRISING A RECTANGULAR FRAME OF ROD-LIKE STOCK AND HAVING INTEGRAL BOTTOM, END AND TOP MEMBERS, THE BOTTOM MEMBER OF SAID REAR WALL UNIT BEING HINGEDLY CONNECTED TO THE REAR MEMBER OF SAID BOTTOM FRAME, END WALLS, EACH COMPRISING A RECTANGULAR FRAME OF ROD-LIKE STOCK AND HAVING INTEGRAL BOTTOM, SIDE AND TOP MEMBERS, THE TOP MEMBERS HAVING INTERMEDIATE PORTIONS THEREOF OF SUBSTANTIAL LENGTH UPWARDLY OFFSET THEREBY PROVIDING THE TOP MEMBERS WITH LATERALLY SPACED LATERALLY FACING SHOULDERS, THE REAR SIDE MEMBERS OF SAID END WALL FRAMES BEING HINGEDLY CONNECTED TO THE END UPRIGHTS OF SAID REAR WALL FRAME, THE SAID CONNECTIONS PERMITTING THE COLLAPSING OF THE END WALLS ON SAID REAR WALL, THE HINGE CONNECTION FOR SAID REAR WALL TO SAID BOTTOM UNIT PERMITTING THE COLLAPSING THEREOF WITH THE END WALL COLLAPSED RELATIVE THERETO UPON SAID BOTTOM UNIT, A FRONT WALL UNIT COMPRISING SECTIONS, EACH SECTION INCLUDING RECTANGULAR FRAME MEMBERS OF ROD-LIKE STOCK INCLUDING UNITARY BOTTOM, TOP AND END MEMBERS, THE BOTTOM MEMBER OF THE LOWER OF SAID FRONT WALL SECTIONS BEING HINGEDLY CONNECTED TO THE FRONT FRAME MEMBER OF THE BOTTOM, ADJACENT LONGITUDINAL FRAME MEMBERS OF SAID FRONT WALL SECTION BEING HINGEDLY CONNECTED TO EACH OTHER, THE CONNECTIONS FOR THE BOTTOM FRONT WALL MEMBER TO THE BOTTOM BEING SUCH AS TO PERMIT COLLAPSING OF THE FRONT WALL UNIT UPON THE BOTTOM, THE SAID REAR AND END WALLS WHEN THE END WALLS ARE IN COLLAPSED POSITION BEING COLLAPSIBLE UPON THE FRONT WALL UNIT WHEN