Honda Motor Co., Ltd.

Ts Tech Co., Ltd.

Tachi-s Co., Ltd.

Yoshitomo Oka

Tomoki Matsumoto

Kenichi Niitsuma

Koji Sano

Harutomi Nishide

Hisato Oku

Jogen Yamaki

Tatsuya Terauchi

Masayuki Yamaguchi

Kenichi Saito

Yozo Furuta

Hiroshi Abe

Takeshi Abe

Munetoshi Nishihara

A seat back structure for a vehicle according to one aspect of the present invention including a headrest, a seat back frame, a pad disposed in front of a surface of the seat back frame, a backrest surface of the pad, and right and left side supports each provided on either side of the backrest surface in a seat width direction, in which a right slit portion and a left slit portion are provided between the backrest surface and the right and the left side supports, respectively, each of the right slit portion and the left slit portion penetrating the pad in the thickness direction of the pad and extending in a vertical direction of the pad, and the right and the left slit portions are spaced apart from each other in the seat width direction.

Seat back structure for vehicle

A vehicle seat cushion is provided with: a cushion body that makes contact with the body of a vehicle occupant; and a plurality of spring bodies that are suspended on a seat frame so as to extend in the fore-and-aft direction of the seat. The plurality of spring bodies include inner region spring bodies that are placed underneath the hipbone of the vehicle occupant, and outer region spring bodies that are placed on the outer sides of the inner region spring bodies in the transverse direction of the seat. Moreover, if a cross-section of the seat extending in the fore-and-aft direction is viewed, then at least the inner region spring body portion that is located on the front side of the bottommost end portion of the hipbone of the vehicle occupant is seen to be positioned lower than the outer region spring bodies.

Vehicle seat cushion

A seat back frame for the vehicle seat, includes a pair of side frames that are disposed on both sides in a seat width direction; and a supporting plate that has both ends connected to a bottom section of each of the side frames, wherein the supporting plate is at least disposed along an interval between a first height that corresponds to an upper part of a lumbar vertebra of an occupant seated in the seat and a second height that corresponds to a lower part of the lumbar vertebra, and curves in a manner such that, in a cross-section along with a vertical direction, the supporting plate bulges forward along a line from the first height to the second height.

Seat back frame for vehicle seat

A seat back frame for a seat of a vehicle includes: a pair of side frames placed at a left side and a right side in a width direction of a seat; a head rest supporting frame supporting a head rest; a supporting plate, a both ends of the supporting plate being connected to a lower portion of each of the side frames; an upper opening provided above the supporting plate, the upper opening being opened in a front-rear direction; a planar elastic body provided across the upper opening; and a connection member elastically connecting a lower portion of the planar elastic body and an upper portion of the supporting plate.

Seat back frame

Growing community of inventors

Utsunomiya, Japan

Yoshitomo Oka