Development of More Comfortable Train Seats

JR East has conducted development on comfortable train seats with an aim of proposing a more comfortable final stable form (midline shape and transverse cross-sectional shape) for train seats. First, using a seat form measuring device and a test seat for form examination, the authors measured the form of existing seats that are seen as being comfortable; and then the authors created a final stable form that incorporated the measurement results. The developed final stable form was evaluated and amended, and the author proposed a comfortable final stable form. Incorporating that form, the authors produced test seats for sensory evaluation of seat comfort. In that evaluation, the test seats were rated higher than the seats for series E6 pre-mass production cars, proving that the comfortable final stable form would be well accepted when applied to actual seats.