Abstract: A vehicle seat includes: a seat back, connected with a seat cushion through a recliner, an outlet of a shoulder belt being provided in one shoulder of the seat back, wherein: the seat back includes: a first side frame, arranged on the one shoulder side; and a second side frame, arranged on the other shoulder side; the first side frame includes: a first frame member having a hollow and closed sectional shape; and a plate-shaped bracket which is attached in the recliner; and the bracket includes a joint part which is inserted into a lower end portion of the first frame member and is joined with the lower end portion.

Abstract: A vehicle seat includes: a seat back; and a seat cushion including: a first side frame; a second side frame; a front frame connecting front end portions of the first side frame and the second side frame to each other; and a rear frame connecting rear end portions of the first side frame and the second side frame to each other. The first side frame includes: a frame member including a closed sectional shape part between the front frame and the rear frame; a first reinforcing member being provided between the front frame and the rear frame to pass through an inner side wall and an outer side wall, and being joined with the inner side wall and the outer side wall; and a connection member connecting an end portion of the first reinforcing member with at least one frame of the front frame and the rear frame.

Abstract: A composite skin material for a vehicle includes a fibrous substrate, a polyurethane resin layer provided on the front side of the fibrous substrate, and a woven fabric adhered to the back side of the fibrous substrate through an adhesive layer comprising a polyurethane resin. Openings penetrating the fibrous substrate from the front of the polyurethane resin layer are provided in the composite skin material, and an opening ratio on the front of the polyurethane resin layer is 1 to 15%. The woven fabric has a warp density of 25 to 50 yarns/25.4 mm and a weft density of 30 to 50 yarns/25.4 mm, and the mass per unit area of the adhesive layer is 15 to 100 g/m2. The composite skin material has air permeability of 5 to 100 cm3/cm2·s, tear strength of 20 to 150N, and tensile strength of 50 N/cm or more.

Abstract: A vehicle seat includes: a seat back, connected with a seat cushion through a recliner, an outlet of a shoulder belt being provided in one shoulder of the seat back, wherein: the seat back includes: a first side frame, arranged on the one shoulder side; and a second side frame, arranged on the other shoulder side; the first side frame includes: a first frame member having a hollow and closed sectional shape; and a plate-shaped bracket which is attached in the recliner; and the bracket includes a joint part which is inserted into a lower end portion of the first frame member and is joined with the lower end portion.

Abstract: A vehicle seat includes: a seat back; and a seat cushion including: a first side frame; a second side frame; a front frame connecting front end portions of the first side frame and the second side frame to each other; and a rear frame connecting rear end portions of the first side frame and the second side frame to each other. The first side frame includes: a frame member including a closed sectional shape part between the front frame and the rear frame; a first reinforcing member being provided between the front frame and the rear frame to pass through an inner side wall and an outer side wall, and being joined with the inner side wall and the outer side wall; and a connection member connecting an end portion of the first reinforcing member with at least one frame of the front frame and the rear frame.

Abstract: A seat device includes a seat part on which an occupant is seated, a support part for supporting the seat part, and a front cover made of soft material, which is fitted between front parts of the seat part and the support part. The front cover includes a seat connection end part joined with the front part of the seat part, a detachable first fixture attached to an end of the front cover opposite to the seat connection end part for attachment to the support part, an elastic member having one end disposed between the seat connection end part and the first fixture, and a detachable second fixture attached to the other end of the elastic member for attachment to a seat lower surface as a lower surface of the seat part.

Abstract: A seat device includes a seat part on which an occupant is seated, a support part for supporting the seat part, and a front cover made of soft material, which is fitted between front parts of the seat part and the support part. The front cover includes a seat connection end part joined with the front part of the seat part, a detachable first fixture attached to an end of the front cover opposite to the seat connection end part for attachment to the support part, an elastic member having one end disposed between the seat connection end part and the first fixture, and a detachable second fixture attached to the other end of the elastic member for attachment to a seat lower surface as a lower surface of the seat part.