Vehicle seat assembly having a hardness gradient via surface intrusions and/or protrusions

摘要

A method of making a vehicle seat assembly comprising providing a cushion having an “A” surface, a “B” surface, a central portion, and two bolster areas, with each bolster area being adjacent the central portion, the cushion having a plurality of intrusions extending from the “A” surface towards the “B” surface to form a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25%, securing the cushion to a frame, and covering cushion with a trim member.

主权项

1. A method of making a vehicle seat assembly, the method comprising:
providing a cushion having an “A” surface, a “B” surface, a seating portion, and at least one bolster area adjacent the seating portion, the seating portion having a plurality of intrusions extending from the one of the “A” surface or the “B” surface towards the other of the “A” surface or the “B” surface to form a hardness gradient between the at least one bolster area and the seating portion of between 8% to 25%, each of the intrusions having a first dimension extending across the intrusion and a second corresponding dimension extending across the intrusion, the second dimension being spaced further from the one surface than the first dimension and being smaller than the first dimension, the seating portion having a front portion and a rear portion rearward of the front portion, with the front portion having a lower hardness than the rear portion; securing the cushion to a frame; and securing a trim material to the seat assembly so a portion of the trim material is disposed over the “A” surface of the cushion.