Patent ID: 9493095
Filing Date: 2016-11-15
CPC Classification: B60N

Claim Text:
1. A seat for use by an occupant, the seat comprising: a riser used as a base; a seat cushion arranged on the riser; a strut coupled at lower end to a rear end of the riser and provided at a rear of the seat cushion; a seatback secured to the strut and at the front surface thereof configured to hold the occupant's hips, lower ribs and shoulder blades; and a lifting/lowering means for lifting and lowering the seat cushion and the seatback relative to each other, wherein the seatback comprises a lower half structured to support the occupant's hips and lower ribs, and an upper half, integral with the lower half, structured to support the occupant's shoulder blades, the lower half being narrower than the upper half, the seat cushion has a U-notch formed in a middle part of a rear end for holding the narrow lower half of the seatback, not the upper half of the seatback, to lift and lower the seat cushion and the seatback relative to each other; left and right parts of the rear end of the seat cushion bulge to support the occupant's buttocks from the left and right sides and are located on the left and right sides of the U-notch.