Patent ID: 9254763
Filing Date: 2016-02-09
CPC Classification: B60N

Claim Text:
1. A vehicle seat comprising a seat cushion, a seat back, and a headrest, the seat back including a seat back frame constituting a frame of the seat back, and a seat back pad covering the seat back frame, and the vehicle seat being configured to allow an upper body of an occupant to sink into the seat back when a backward movement load acts on the seat back from the occupant's upper body, wherein the seat back pad comprising a center portion configured to face a back region of the occupant's upper body, and right and left side portions provided at right and left sides of the center portion and each configured to protrude frontward farther than the center portion, said seat back pad having through-openings or recessed portions at positions where regions between the center portion and the right and left side portions overlap the support members, wherein each of the right and left side portions has an upper side portion corresponding to a height of a chest region of the occupant and a lower side portion corresponding to a height of a lumbar region of the occupant, which are configured such that when they receive the backward movement load, the upper side portion is more easily deformable than the lower side portion, wherein the vehicle seat further comprises support members provided in the seat back and configured to support the upper side portions from inside the seat back and to be movable in a backward direction, and wherein the support members are disposed frontward of right and left side frames of the seat back frame with a gap provided between each of the side frames and each of the support members.