A vehicle seat includes a first webbing provided in a side portion of a seat back, and a second webbing provided in the side portion of the seat back so as to overlap the first webbing from outside. The first webbing and the second webbing form a bag portion that opens downward, which houses a side airbag device. The bag portion includes a webbing seam portion in which edge portions of the first webbing and the second webbing are sewn together. In a skin seam portion in which skins of a seat back skin constituting skin of the seat back are sewn together, the webbing seam portion is sewn together with the skins, in a state in which the first webbing overlaps one of the skins and the second webbing overlaps the other of the skins.

A surface skin with which a foamed body is integrally foam-molded and which covers the foamed body includes: a surface skin member; a first thread passing through at least a part of a needle hole extended through the surface skin members so as to sew the surface skin members together; and a second thread inter-looping or interlacing with the first thread so as to sew the surface skin members together in cooperation with the first thread. The first thread is threaded through an eye of a needle. The second thread is formed by warp weaving or braiding polyester or nylon fiber pieces and is stretchable enough to fill in the needle hole.

The present disclosure relates to a vehicle seat having a seat pad and a planar seat cover. The seat cover may include a plurality of the skin materials and at least one seam allowance formed by sewing the adjacent skin materials each other. The seam allowance includes end portions of the adjacent skin materials projecting from a back surface of the seat cover. The seat pad may include a plurality of recessed grooves and an intersecting area of the grooves. The skin material may include a high-rigidity portion disposed at the intersecting area and configured to cover at least one of the corners formed at the intersecting area. The high-rigidity portion may include a planer overlapping portion laid over a back surface of the skin material.

A seat has a seat cushion unit including: a seat cushion frame; a seat pad which lies over the seat cushion frame; and a trim which covers the seat pad. The trim includes: a trim main body which mainly covers a top surface of the seat pad; a first trim joiner which extends from the trim main body to a backside of the seat cushion frame at the rear of the seat pad, and is fastened to the seat cushion frame; and a second trim joiner which is connected to a back surface of the trim main body in at least one of left and right end regions of the rear of the seat cushion unit, extends to the backside of the seat cushion frame at the rear of the seat pad, and is fastened to the seat cushion frame.

A seat trim cover for a vehicle seat comprises a molded foam backing formed on a cover material blank that has been vacuum-formed into a 3-dimensional shape. The cover material blank has been pre-cut into a predefined shape having a predefined selvage extending around an outer periphery of the cover material blank. The molded foam backing is spaced apart from the predefined selvage of the cover material blank forming a foam-free selvage. The molded foam backing includes a stepped edge profile having a first surface defining a first sewing alignment feature and a second surface defining a second alignment feature. The first sewing alignment feature is spaced apart from the second sewing alignment feature.

A vehicle seat includes a seat pad and a seat cover including a first part and a second part. The seat cover is provided with: a sewing line that sews the first part and the second part together; and an outline stitch that extends in parallel to the sewing line and that is located on one side of the sewing line. A belt-shaped plate is sewn to a first seam allowance and a first main body of the first part by the outline stitch in a position on an end side of the first seam allowance relative to the sewing line. The seat pad is covered with the seat cover in a state where the belt-shaped plate extends beyond the sewing line toward the second part and where the belt-shaped plate presses a second seam allowance to abut against a second main body of the second part.

A vehicle seat includes a seat cushion including a cover, a frame and a pad, a plurality of parts of the cover being restrained to the frame and the pad; a cushion airbag device mounted in a front portion in the seat cushion and configured to inflate and deploy an airbag at a time of a frontal collision of a vehicle; and a restraint release part provided in a part of the cover positioned at at least one side in a seat front-rear direction with respect to the cushion airbag device among the plurality of parts of the cover. The restraint release part is configured to release the restraint of the part of the cover with an inflation pressure of the airbag.

A heat insulating sheet includes, a first sheet, a first heat insulator disposed on a main surface of the first sheet and including a first xerogel, a second heat insulator disposed on the main surface of the first sheet apart from the first heat insulator and including a second xerogel, and a second sheet disposed on the main surface of the first sheet to cover the first and second heat insulators. A first region of the heat insulating sheet provided between the first and second heat insulators viewing in a direction perpendicular to the main surface has an extensible rate larger than an extensible rate of each of the first and second heat insulators. The heat insulating property of this heat insulating sheet hardly degrades.

A seat has a seat cushion unit including: a seat cushion frame; a seat pad which lies over the seat cushion frame; and a trim which covers the seat pad. The trim includes: a trim main body which mainly covers a top surface of the seat pad; a first trim joiner which extends from the trim main body to a backside of the seat cushion frame at the rear of the seat pad, and is fastened to the seat cushion frame; and a second trim joiner which is connected to a back surface of the trim main body in at least one of left and right end regions of the rear of the seat cushion unit, extends to the backside of the seat cushion frame at the rear of the seat pad, and is fastened to the seat cushion frame.

A vehicle seat cover comprises a cushion seat cover and a backrest cover, wherein the backrest cover comprises a front cloth, a back cloth and two side cloths, the side cloth is provided with an airbag blasting seam which is formed by hot pressing.