Collapsible trailer

Claim 1

A COLLAPSIBLE VEHICLE HAVING: A FLOOR; COLLAPSIBLE END AND SIDE WALLS; A ROOF CONNECTED TO THE UPPER ENDS OF AT LEAST SOME OF SAID WALLS; STRUCTURE FORMING A PASSAGEWAY ALONG SAID FLOOR WITH VERTICAL STRUCTURE ALONG THE OPPOSITE SIDES OF THE PASSAGEWAY, SAID PASSAGEWAY HAVING LONGITUDINAL RECESSES ADJACENT THE FLOOR FOR TOE CLEARANCE ON THE OPPOSITE SIDE OF THE PASSAGEWAY; SUPPORT MEANS COMPRISING TWO RIDIDLY INTERCONNECTED SPACED SUPPORT MEMBERS PIVOTALLY CONNECTED TO THE ROOF OF THEIR UPPER ENDS CENTRALLY OF THE LENGTH OF THE ROOF FOR SWINGING MOVEMENT FOR INCLINED RETRACTED POSITIONS TO UPRIGHT EXTENDED POSITIONS; ROTARY MEANS SUPPORTING THE LOWER ENDS OF THE TWO SUPPORT MEMBERS FOR MOVEMENT THEREOF AT LOW FRICTIONAL RESISTANCE, SAID ROTARY MEANS TRACKING IN SAID TWO LONGITUDINAL RECESSES; ACTUATING MEANS TO OPERATE SAID TWO SUPPORT MEMBERS; TWO LONGITUDINAL FLEXIBLE MEMBERS EXTENDING ALONG SAID TWO LONGITUDINAL RECESSES RESPECTIVELY AND OPERATIVELY CONNECTING THE ACTUATING MEANS WITH THE LOWER ENDS OF THE TWO SUPPORT MEMBERS; AND FIXED STRUCTURE ON OPPOSITE SIDES OF THE PASSAGEWAY CONTIGUOUS TO THE UPRIGHT POSITIONS OF THE TWO SUPPORT MEMBERS TO BRACE THE SUPPORT MEMBERS AGAINST SIDE SWAY.