Seats

Claim 1

IN A VEHICLE HAVING WALLS AND A FLOOR, A SEAT UNIT COMPRISING A BASE FRAME INCLUDING A LOWER PORTION FIXED TO THE FLOOR OF THE VEHICLE AND AN UPPER PORTION, A SEAT FRAME, A BACK FRAME, A HINGE CONNECTING THE FORWARD END OF THE BACK FRAME TO THE REAR END OF THE SEAT FRAME, AND LINKAGES CONNECTING THE SEAT FRAME AND THE BACK FRAME TO THE UPPER PORTION OF THE BASE FRAME AT EACH SIDE OF THE SEAT UNIT AND PERMITTING OF CONJOINT MOVEMENT OF THE SEAT FRAME AND BACK FRAME IN RELATION TO SAID BASE FRAME FROM A SEATING POSITION IN WHICH THEY COLLECTIVELY FORM A SEAT TO A FLAT POSITION IN WHICH THEY ARE ALIGNED AND EXTEND SUBSTANTIALLY HORIZONTALLY, EACH OF SAID LINKAGES COMPRISING A FIRST LINK PIVOTED AT ONE END TO THE BASE FRAME AND AT THE OTHER END TO THE BACK FRAME, A SECOND LINK PIVOTED AT ONE END TO THE REAR END OF THE SEAT FRAME AND AT ITS OTHER END TO A POINT INTERMEDIATE IN THE LENGTH OF SAID FIRST LINK AND A THIRD LINK HAVING A LOWER END PIVOTED TO THE BASE FRAME AND AN UPPER END PIVOTED TO THE SEAT FRAME, SAID HINGE BEING DISPOSED IN THE SEATING POSITION OF THE SEAT UNIT BELOW THE LINE JOINING THE PIVOT AT THE UPPER END OF THE THIRD LINK AND THE PIVOT CONNECTING THE FIRST LINK TO THE BASE FRAME AND SAID SECOND LINK EXTENDING SUBSTANTIALLY HORIZONTALLY IN THE FLAT POSITION OF THE SEAT UNIT AND WITH THE PIVOTS AT ITS OPPOSITE ENDS BELOW SAID LINE, SAID BASE FRAME INCLUDING AN ARM LOCKED ADJACENT A WALL OF THE VEHICLES AND PIVOTED AT ITS UPPER END TO SAID UPPER MEMBER AND AT ITS LOWER END TO THE FLOOR, A LEG SPACED INWARDLY FROM SAID ARM, SAID LEG BEING PIVOTED AT ITS UPPER END TO SAID UPPER MEMBER AND RESTING AT ITS LOWER END ON THE FLOOR, A LINK EXTENDING TRANSVERSELY OF SAID VEHICLE AND PIVOTED AT ITS OPPOSITE ENDS TO SAID ARM AND SAID LEG AND A PIN EXTENDING DOWNWARDLY FROM SAID LINK, SAID FLOOR HAVING SOCKETS SPACED AT DIFFERENT DISTANCES FROM SAID WALL AND ALTERNATELY ENGAGEABLE BY SAID PIN TO LOCATE SAID SEAT UNIT IN DIFFERENT LATERALLY SPACED POSITIONS IN THE VEHICLE.