Vehicle seat

A vehicle seat, comprising:

• a base section fixed to a floor of a vehicle;
• a pair of seat sections that are disposed in opposition to each other, that are each supported by the base section so as to be tiltable between a horizontal position and an upright position, and that each seat section includes a plurality of cushion sections disposed in series and configured to support a body of an occupant, wherein the plurality of cushion sections of each seat section includes:
• a lower cushion section that has a first end tiltably supported b the base section, the lower cushion section being configured to support the buttocks or the lower back of an occupant;
• a middle cushion section that has a first end swingably supported by a second end of the lower cushion section, the middle cushion section being configured to support, the calves or the upper back of an occupant;
• and
• an upper cushion section that has a first end swingably supported by a second end of the middle cushion section, the upper cushion section being configured to support the feet or the head of an occupant, the upper cushion section including a plate-shaped under-frame and a plate-shaped rotatable frame, the plate-shaped under-frame being configured to support the feet of an occupant when the upper cushion section is in a footrest position, and the plate-shaped rotatable frame being configured to support the head of an occupant when the upper cushion section is in a headrest position, the plate-shaped under-frame and the plate-shaped rotatable frame being coupled together so as to be swingable about an axis;
• and
• a hinge mechanism, the hinge mechanism comprising a pair of first hinge sections that attach the pair of seat sections to opposite ends of the base section such that the seat sections are tiltable with respect to the base section about a first pair of axes,
• wherein the plurality of cushion sections of each seat section are swingable relative to each other,
• wherein each of the lower cushion sections and the middle cushion sections are swingably coupled together by a double hinge mechanism in which one rotation shall provided at the second end of the lower cushion section and another rotation shaft provided at the first end of the middle cushion section are coupled together via a link.