Underslung leg-rest control means for reclining chairs

Claim 1

A RECLINING CHAIR COMPRISING A SUPPORT FRAME, A BODY-SUPPORTING STRUCTURE INCLUDING A SEAT AND BACK REST, MEANS MOUNTING SAID BODY-SUPPORTING STRUCTURE ON THE SUPPORT FRAME FOR TILTING MOVEMENT TO A RECLINING POSITION IN WHICH THE FORWARD PORTION OF THE SEAT IS RAISED AND MOVED REARWARDLY RELATIVE TO THE SUPPORT FRAME, A LEGREST, AND A LEG-REST LINKAGE CARRYING THE LEG-REST AND ADAPTED TO MOVE THE LATTER FROM A RETRACTED UNDERSLUNG POSITION BENEATH THE SEAT TO AN EXTENDED POSITION SPACED FORWARDLY OF THE SEAT, SAID LEG-REST LINKAGE INCLUDING A PAIR OF INTERCONNECTED LINKS CONNECTING SAID LEG-REST TO THE FORWARD END PORTION OF THE SEAT, AN ACTUATING LINK PIVOTALLY MOUNTED ON THE SUPPORT FRAME AND PIVOTALLY CONNECTED TO ONE OF THE LINKS OF SAID PAIR OF LINKS AND FORMING THEREWITH A DRAG LINK MECHANISM TO PROVIDE A RAPID MOVEMENT OF THE LEG-RST THROUGH A LONG PATH OF TRAVEL FROM ITS RETRACTED POSITION TO ITS EXTENDED POSITION IN RESPONSE TO RELATIVELY SHORT MOVEMENT OF THE BODYSUPPORTING STRUCTURE, A CHAIN OF THREE LINKS PIVOTALLY CONNECTED END-TO-END, AND PIVOTALLY INTERCONNECTED WITH SAID PAIR OF LINKS FOR COORDINATED MOVEMENT THEREWITH, MEANS PIVOTALLY CONNECTING ONE END LINK OF THE CHAIN TO THE LEG REST, AND MEANS PIVOTALLY MOUNTING THE OTHER END LINK OF THE CHAIN, THE CHAIN OF THREE LINKS BEING FREE OF DIRECT CONNECTION WITH THE BODY-SUPPORTING STRUCTURE, AND FORMING AN UNCONSTRAINED LINKAGE AS THE LEG-REST IS MOVED TO ITS EXTENDED POSITION WITH SAID OTHER END LINK OF THE CHAIN PROVIDING A MOVABLE MOUNT FOR THE PIVOTAL CONNECTION OF THE CENTER LINK WITH SAID OTHER END LINK AND STOP MEANS ENGAGING AND IMMOVABLY HOLDING SAID OTHER END LINK AT THE EXTENDED POSITION OF THE LEG-REST, WHEREBY SAID PIVOTAL CONNECTION OF THE CENTER LINK IS FIXED AT THE RECLINING POSITION TO PROVIDE A CONSTRAINED LINKAGE SUPPORTING SAID LEG-REST.