Auxiliary seat

Claim 1

A VEHICLE SEAT COMPRISING: A SUPPORTING STRUCTURE ADAPTED TO BE FIXED TO SAID VEHICLE AND BEING IN THE FORM OF A TOP OPEN CONTAINER TO WHICH ACCESS CAN BE GAINED FROM A TOP OPENING; SAID SUPPORTING STRUCTURE HAVING A REAR WALL EXTENDING ABOVE THE PLANE OF SAID TOP OPENING; FIRST CUSHION MEANS PIVOTALLY CONNECTED TO SAID WALL BY A FIRST LEAF OF A HINGE MEANS WHICH IS MOUNTED AT A SECTION OF SAID WALL ABOVE THE PLANE OF SAID OPENING AND WHICH PERMITS SAID FIRST CUSHION MEANS TO BE PIVOTALLY MOVED BETWEEN A GENERALLY FLAT POSITION IN WHICH SAID FIRST CUSHION MEANS OVERLIES SAID TOP OPENING AND IS SUPPORTED BY THE TOP EDGES OF THE OTHER WALLS OF SAID SUPPORTING STRUCTURE AND A GENERALLY UPSTANDING POSITION; SECOND CUSHION MEANS HAVING A CENTRAL RELATIVELY RIGID FRAME WHICH FRAME IS CONNECTED BY A SECOND LEAF OF SAID HINGE MEANS TO SAID BACK WALL, SAID SECOND CUSHION MEANS HAVING CUSHIONING MATERIAL ON BOTH SIDES OF SAID CENTRAL FRAME AND BEING MOVABLE BY VIRTUE OF SAID HINGE MEANS INDEPENDENTLY OF SAID FIRST CUSHION MEANS FROM A GENERALLY FLAT POSITION IN WHICH IT OVERLIES AND IS SUPPORTED BY SAID FIRST CUSHION MEANS TO A GENERALLY UPSTANDING POSITION IN WHICH IT FORMS THE BACK MEMBER OF SAID SEAT WITH SAID FIRST CUSHION MEANS FORMING THE SEAT PART OF THE VEHICLE SEAT.