Seat frame for vehicle

摘要

A seat back frame includes: a first side member and a second side member each formed into an elongated shape along an up-and-down direction of a seat back so as to support each side portion of the seat back; and a belt guide portion on which tension of a seat belt is applied when the seat belt is pulled, the belt guide portion being formed in an upper portion of the first side member and guiding the seat belt having the one end retained by a seat belt retaining member. The first side member is formed of a sheet of steel plate and includes: a side member side wall portion formed in parallel to a direction of application of the tension of the seat belt on the belt guide portion and formed continuously along a longitudinal direction of the first side member; a side member front wall portion formed on a front side of the vehicle with respect to the side member side wall portion; and a side member rear wall portion formed on a rear side of the vehicle with respect to the side member side wall portion, the first side member having an open cross-sectional shape.

主权项

1. A seat frame, comprising:
a seat cushion frame for supporting a seat cushion of a seat of a vehicle; and a seat back frame to which a seat belt retaining member is coupled, the seat back frame being coupled to the seat cushion frame and supporting a seat back of the seat, the seat belt retaining member retaining one end of a seat belt for holding an occupant seated on the seat, the seat back frame comprising: a first side member and a second side member each formed into an elongated shape along an up-and-down direction of the seat back so as to support each side portion of the seat back; and a belt guide portion on which tension of the seat belt is applied when the seat belt is pulled, the belt guide portion being formed in an upper portion of the first side member and guiding the seat belt having the one end retained by the seat belt retaining member, the first side member being formed of one sheet of steel plate and comprising:
a side member side wall portion formed in parallel to a direction of application of the tension of the seat belt on the belt guide portion and formed continuously along a longitudinal direction of the first side member;a side member front wall portion formed on a front side of the vehicle with respect to the side member side wall portion; anda side member rear wall portion formed on a rear side of the vehicle with respect to the side member side wall portion,the first side member having an open cross-sectional shape, wherein the side member front wall portion comprises a front projecting portion projecting to an outer side of the seat back with respect to the side member side wall portion; the side member rear wall portion comprises a rear projecting portion projecting to the outer side of the seat back with respect to the side member side wall portion; the front projecting portion and the rear projecting portion are formed continuously along the longitudinal direction of the first side member; and the front projecting portion has a projecting amount larger than a projecting amount of the rear projecting portion.