US Patent 10150391 Vehicle seat

A vehicle seat including a controller configured to, in a case where an excessive external load in a front and rear direction, by which a first back frame part is configured to be pressed and bent toward a second back frame part, is applied to the first back frame part, adjust an inclination angle of each back frame part by driving and controlling a reclining adjuster so that the first back frame part can be pressed against the second back frame part by being bent due to the excessive external load, the first back frame part being one of a front back frame part and a rear back frame part of a seat back, and the second back frame part being another of the front back frame part and the rear back frame part.