Folding chair assembly

Claim 1

A FOLDING CHAIR ASSEMBLY COLLAPSIBLY MOUNTED ON A BASE COMPRISING: A FRAME HAVING FIRST AND SECOND UPRIGHT MEMBERS, SAID UPRIGHT MEMBERS EACH HAVING A PAIR OF LUGS EXTENDING OUTWARDLY FROM SAID MEMBER NORMAL TO THE LONGITUDINAL AXIS THEREOF; A WHEEL ROTATABLY MOUNTED ON EACH UPRIGHT MEMBER WITH A PORTION OF SAID WHEEL EXTENDING BELOW THE LOWER END OF SAID UPRIGHT MEMBER; A CHAIR BACK SECURED TO SAID UPRIGHT MEMBERS; A CHAIR SEAT HAVING A ROUNDED LOWER FRONT EDGE, SAID SEAT BEING PIVOTALLY SECURED TO SAID UPRIGHT MEMBERS; MEANS FOR LIMITING THE PIVOTAL MOVEMENT OF SAID CHAIR SEAT; A ROLLER ROTATABLY MOUNTED IN SAID CHAIR SEAT WITH A PORTION OF SAID ROLLER EXTENDING BELOW THE LOWER SURFACE OF SAID SEAT; A RAMP MEMBER MOUNTED ON SAID BASE IN ALIGNMENT WITH SAID ROLLER WHEREBY SAID ROLLER CONTACTS SAID RAMP DURING THE OPENING AND CLOSING OF SAID COLLAPSIBLE CHAIR ASSEMBLY; FIRST AND SECOND LINKS EACH HAVING ONE END THEREOF PIVOTALLY SECURED TO SAID BASE AND THE OTHER END THEREOF PIVOTALLY SECURED RESPECTIVELY TO SAID FIRST AND SECOND UPRIGHT MEMBERS; FIRST AND SECOND CHAIR ARMS EACH HAVING ONE END THEREOF PIVOTALLY CONNECTED RESPECTIVELY TO SAID FIRST AND SECOND UPRIGHT MEMBERS ABOVE THE PIVOT POINT OF SAID LINKS; FIRST AND SECOND INTERMEDIATE LINKS EACH HAVING ONE END THEREOF PIVOTALLY CONNECTED RESPECTIVELY TO SAID FIRST AND SECOND CHAIR ARMS AND THE OTHER END THEREOF PIVOTALLY CONNECTED RESPECTIVELY TO SAID FIRST AND SECOND LINKS INTERMEDIATE OF THE ENDS OF SAID LINKS; A PLURALITY OF CHANNEL MEMBERS MOUNTED ON SAID BASE WITH THE LONGITUDINAL AXIS OF SAID CHANNEL MEMBERS IN ALIGNMENT WITH CORRESPONDING UPRIGHT MEMBERS, SAID CHANNEL MEMBERS EACH COMPRISING: A BOTTOM ELEMENT AND UPWARDLY EXTENDING SIDE WALLS INTEGRALLY FABRICATED THEREWITH, SAID SIDE WALLS EACH HAVING THE END THEREOF IN PROXIMITY TO SAID CORRESPONDING UPRIGHT MEMBER TAPERED TO FORM AN INCLINED RAMP WITH SAID BASE AND A SLOT EXTENDING DOWNWARDLY FROM THE UPPER EDGE OF SAID SIDE WALL IN SUBSTANTIALLY PARALLEL RELATION TO SAID INCLINED RAMP WHEREBY WHEN SAID CHAIR ASSEMBLY IS UNFOLDED FROM ITS HORIZONTAL STORAGE POSITION SAID LUGS WILL SLIDE UPWARDLY ALONG THE INCLINED RAMP OF SAID CHANNEL MEMBER WALLS AND FORWARDLY UNTIL THE LUGS ENGAGE THE RESPECTIVE SLOTS IN SAID WALLS THEREBY LOCKING SAID CHAIR ASSEMBLY IN AN UPRIGHT POSITION.