Seat for motor vehicles

Claim 1

IN A SEAT CONSTRUCTION FOR A MOTOR VEHICLE HAVING A VEHICLE SUPERSTRUCTURE, SEAT FRAME MEANS INCLUDING BACKREST MEANS, SEAT CUSHION MEANS SUPPORTED UPON SAID SEAT FRAME MEANS, THE IMPROVEMENT CONSISTING ESSENTIALLY OF MEANS FOR SUPPORTING SAID SEAT FRAME MEANS ON SAID VEHICLE SUPERSTRUCTURE TO ENABLE MOVEMENT OF SAID SEAT FRAME MEANS IN THE LONGITUDINAL DIRECTION OF THE VEHICLE AND TO PROVIDE A HIGH SEAT STABILITY, SAID LAST-MENTIONED MEANS INCLUDING FORWARD AND REAR BEARING MEANS SECURED TO SAID SEAT FRAME MEANS AND FORMING FORWARD AND REAR PIVOTAL SUPPORT AXES EXTENDING IN THE TRANSVERSE DIRECTION OF THE VEHICLE, AT LEAST THE PORTION OF SAID SEAT FRAME MEANS BETWEEN SAID TWO SUPPORT AXES BEING RIGID SO AS TO RIGIDLY CONNECT SAID TWO SUPPORT AXES, AND A FORWARD AND REAR SWINGING MEMBER ARRANGED OUTWARDLY OF AND ADJACENT EACH SIDE OF SAID SEAT FRAME MEANS, EACH SAID SWINGING MEMBER BEING PIVOTALLY SUPPORTED UPON SAID VEHICLE SUPERSTRUCTURE AT THE BOTTOM END THEREOF AND PIVOTALLY CONNECTED AT THE UPPER END THEREOF TO THE RESPECTIVE ONE OF SAID REAR BEARING MEANS, A FURTHER FORWARD AND REAR SWINGING MEMBER PIVOTED ON SAID FORWARD SUPPORT AXIS SAID FORWARD SUPPORT AXIS BEING ADJACENT THE BOTTOM PART OF SAID SEAT FRAME MEANS, A RECESSED PORTION IN SAID BOTTOM PART HAVING WALLS INTERSECTED BY SAID FORWARD SUPPORT AXIS