Vehicle seat

摘要

A vehicle seat that may assure stiffness of a seatback and that may realize a reduction in weight. In the present rear seat for a vehicle, a substantially X-shaped X-rib (24) is joined to a panel frame (22) of a rear seatback. A first reinforcement portion (24A) of the X-rib (24) spans in a linear shape between an anchor wire (68), which is a point of action of a load, and a first supported portion (22A) of the panel frame (22), which is supported at a vehicle body via a turning hinge (48). A second reinforcement portion (24B), which has a length direction middle portion in common with the first reinforcement portion (24A), spans in a linear shape between a second supported portion (22B) of the panel frame (22), which is supported at the vehicle body via a turning hinge (56), and a third supported portion (22C) of the panel frame (22), which is supported at the vehicle body via a lock mechanism (64).

主权项

1. A vehicle seat comprising:
a panel frame that is formed in a panel shape and constitutes a framework of a seatback, and of which a first supported portion, a second supported portion and a third supported portion are supported at a vehicle body,
the first supported portion being provided at one width direction end side of a lower portion side of the panel frame,the second supported portion being provided at the other width direction end side of the lower portion side, andthe third supported portion being provided at one width direction end side of an upper portion side of the panel frame; and a reinforcement member that is formed in a closed cross-section shape and includes an open cross-section member with an open cross-section shape and a flat plate member with a flat plate shape, which is joined to an open side of the open cross-section member, a peripheral edge portion of the flat plate member protruding to an outer side of a peripheral edge portion of the open cross-section member in a flange shape and the protruding portion being welded to an open side end portion of the open cross-section member, the reinforcement member includes a first reinforcement portion and a second reinforcement portion and the reinforcement member is joined to the panel frame,
the first reinforcement portion spanning between the first supported portion and a portion at the upper portion side of the panel frame at the width direction other end side relative to the third supported portion, andthe second reinforcement portion being provided to intersect the first reinforcement portion and spanning between the second supported portion and the third supported portion,wherein the panel frame and the reinforcement member are discrete from each other, and the flat plate member of the reinforcement member is welded to the panel frame.