A vehicle seat includes a seat back including a movable portion that supports an occupant and moves in a vehicle width direction with respect to a main body frame due to a load in a seat width direction, a hard resin material that is provided at a left and right pair of side portions of the seat back and is capable of crushing deformation at a time of a vehicle side impact, and a seat cover that covers a surface of the hard resin material.

A method of applying stitching to an outer skin layer of an interior component is provided herein, the outer skin layer having a contoured surface. The method including the steps of: a) penetrating the contoured surface of the outer skin layer at an entry point on a first surface of the contoured surface of the outer skin layer with a curved needle; b) exiting the contoured surface of the outer skin layer at an exit point on the first surface with the curved needle, wherein the steps of penetrating and exiting cause a first thread to pass through the entry point and the exit point on the contoured surface of the outer skin layer; c) grabbing the first thread with a hook located proximate to the exit point; d) retracting the needle through the exit point and the entry point while pulling a second thread through the exit point via the first thread to form a stitch; e) advancing the contoured surface of the outer skin layer to a new location with respect to the needle and hook; and f) repeating steps a-e until a predetermined amount of stitches are applied to the contoured surface of the outer skin layer.

A vehicle seat includes: a pad including: a first pad part; a second pad part; a step portion formed along at least a part of the boundary; and a groove portion extending from the step portion into between the first and second pad parts over the whole length of the step portion; and a trim cover formed by sewing multiple skin pieces together, the skin pieces including: a first body configured to cover the surface of the first pad part following the surface of the step portion; a first gore configured to cover the surface of the step portion; a second body configured to cover the surface of the second pad part following the surface of the step portion; and a second gore jointed to the second body, wherein an edge of the first gore and an edge of the second gore are respectively stored in the groove portion.

The present disclosure provides a car seat cover, including a seat cushion protective cover, a backrest protective cover, and a headrest protective cover. A storage bag is arranged on a rear side of the backrest protective cover. An opening of the storage bag is provided with a strip-shaped accommodating cavity, and a shaping adhesive strip is arranged in the strip-shaped accommodating cavity. The backrest protective cover is provided with a first inlet-outlet. A backrest inner core enters and exits the backrest protective cover through the first inlet-outlet. A first zipper is arranged on the first inlet-outlet. An air bag window is formed in one side of the backrest protective cover.

A vehicle seat structure, including: a frame member that forms a framework of the vehicle seat; a pad member that is formed of a foam material and is disposed at a front face side of the frame member; and a first rear face member that is integrated with the pad member at a rear face side of the pad member, the first rear face member including: a main body portion that is fixed to the pad member, and an extension portion that extends from the pad member and is fixed to the frame member.

At least a part of a seat cover (4) covering a vehicle seat (1) is formed of a seat-cover skin material (5) including a surface material (10), a cushion material (11), and a backing material (12) which are laminated in this order and are integrally joined together, and a stitch portion (20) at which the surface material (10) and the backing material (12) are sewn together, wherein an elongation percentage of the surface material (10) is greater than an elongation percentage of the backing material (12) when the same load is applied.

A surface structure of wadded seat, with a trim cover having a plurality of trim cover pieces backed with wadding members and sewed together at ends, further includes: first sewed portions, each formed by sewing two adjacent trim cover pieces at one end of each trim cover piece, while serving as seam allowance, the portions not backed with the wadding members; second sewed portions, each formed first by forming a continuous trim cover piece, then by laying a long wadding member on the backs of the wadding members, and finally by sewing, at both ends of the continuous trim cover piece, the wadding members on the backs of the trim cover pieces and the long wadding member; and third sewed portions, each formed by sewing, at both ends of each first sewed portion, the long wadding member to the end of each trim cover piece.

A vehicle seat including: a seat pad including: a first surface portion; a second surface portion; and a peripheral edge portion forming a boundary between the first and second surface portions, and a seat cover including: a first cover portion; a second cover portion; and a sewn portion in which a first seam allowance of the first cover portion and a second seam allowance of the second cover portion are overlapped in a state of being turned back inwardly and are sewn together, the sewn portion being arranged along the peripheral edge portion, and a portion of the sewn portion arranged along the peripheral edge portion is formed of the first seam allowance and the second seam allowance which is shorter than the first seam allowance, and the first seam allowance is tilted toward in a manner of facing either the first surface portion or the second surface portion.

An objective is to provide a vehicle seat that ensures a reduced effect on an appearance even when a sewn portion made by sewing the trim cover is bonded in a groove. A vehicle seat formed by bonding a trim cover to a foam pad is configured such that the trim cover includes a sewn portion made by sewing a plurality of skin materials, the foam pad has a groove, the vehicle seat is formed by the sewn portion of the trim cover and the sewn portion is bonded in the groove of the foam pad, and the groove includes a guiding portion that guides a seam allowance of the sewn portion to the groove, and a restricting portion that restricts the seam allowance of the sewn portion to support the seam allowance of the sewn portion in a state where the seam allowance of the sewn portion does not open.

A method of forming a stitch in a motor vehicle seat cover piece, including a foam layer and a lining material defining the apparent surface of the cover, wherein a groove formed on molding of the cover piece defines the pattern of the stitch and is used as a guide.