The purpose of the present invention is to improve the ride quality of an automobile or other vehicle at low cost. A vehicle seat is provided with a seat cushion for supporting the buttocks of a rider and a seat back for supporting the back of the rider. At a substantially central position in the width direction of the seat back in a location where the back of the rider is to be supported, a recessed part or an opening extending in the vertical direction is formed.

A motor vehicle seat including a sitting part including a base panel bordered at least partially by a side panel, the sitting part configured to be mounted on the vehicle floor panel in two different positions of: a first accommodating position, in which the side panel extends in a first direction, at the rear of the base panel and forms a portion of the seatback of the seat, and a second reversed position, in which the side panel extends in front of the base panel, in a second direction opposite the first. The sitting part further includes an opening configured for passage of a base for securing a safety belt when the sitting part is in the accommodating position. A motor vehicle can include the seat.

A seat accessory for an automobile vehicle includes a seat accessory configuration oriented to be releasably deposited onto a seat base and a seat back of an automobile vehicle seat when the seat back is positioned in a seat back fully reclined and horizontal position. The seat accessory includes a seat base contact portion defining a triangular-shape positioned onto the seat base. A seat back contact portion defining a triangular-shape is positioned onto the seat back. A connecting member directly connects the seat base contact portion to the seat back contact portion.

A vehicle seat strap retaining assembly having a seat cushion section, a seatback section and a strap attachment structure. The seatback section is attached to the seat cushion. The seatback section has a passenger's back supporting surface and an upper end surface that includes a central indentation area configured to receive a child seat retaining strap. The strap attachment structure is rigidly fixed to one of the seat cushion section and the seatback section beneath the central indentation area. The central indentation area and the strap attachment structure are positioned and configured such that with a child seat positioned on the seat cushion section, a securing strap of the child seat extending over the upper end surface of the seatback section overlays the central indentation area and attaches to the child seat supporting strap attachment structure.

A vehicle seat strap retaining assembly includes a seat cushion section, a seatback section, a strap retaining clip and a strap attachment structure. The seatback section is attached to the seat cushion, the seatback section having a passenger's back supporting surface and an upper end surface. The strap retaining clip is attached to a rear surface of the seatback section. The strap attachment structure is rigidly fixed to one of the seat cushion section and the seatback section beneath the upper end surface. The strap retaining clip and the strap attachment structure are positioned and configured such that with a child seat positioned on the seat cushion section, a securing strap of the child seat extending over the upper end surface of the seatback section passes through the strap retaining clip and attaches to the strap attachment structure.

A vehicle seat includes a main part that forms a center portion of a front surface of a seatback; bolster parts that form side parts of the front surface of the seatback; and a reclining adjuster configured to adjust a backrest angle of the seatback, and to move a lower area of the main part toward a front side relative to the bolster parts as the main part is reclined.

A seat back structure for a vehicle according to one aspect of the present invention including a headrest, a seat back frame, a pad disposed in front of a surface of the seat back frame, a backrest surface of the pad, and right and left side supports each provided on either side of the backrest surface in a seat width direction, in which a right slit portion and a left slit portion are provided between the backrest surface and the right and the left side supports, respectively, each of the right slit portion and the left slit portion penetrating the pad in the thickness direction of the pad and extending in a vertical direction of the pad, and the right and the left slit portions are spaced apart from each other in the seat width direction.

Described is a seat back comprising a curved rear wall bordered by a perimeter wall projecting forward from the rear wall. The curved rear wall and perimeter wall define a cavity in front of the rear wall and between opposing surfaces of the perimeter wall. The seat back comprises an upper part and a lower part. The lower part comprises a surface of the rear wall which is curved forward toward each side wall of the lower part and curved forward toward the base of the lower part. The width of the seat back tapers from a first width towards a second width at the base of the seat back.

Described is a seat back comprising a rear wall bordered by side walls projecting forward from the rear wall. The rear wall and side walls define a cavity in front of the rear wall and between opposing surfaces of the side walls. The seat back comprises an insert disposed at least partially within the cavity which is for supporting the back of a person leaning against the front of the seat back. The seat back and insert are shaped such that when the insert is positioned within the cavity, movement of the insert towards the base of the seat back is restricted.

The invention relates to a vehicle seat comprising a seat part and a backrest, the backrest comprising at least one left-hand backrest longitudinal support extending in the vertical direction of the backrest and at least one right-hand backrest longitudinal support extending in the vertical direction of the backrest, the backrest longitudinal supports being attached to the seat part and/or a seat-part frame in a lower end region and comprising at least one cushion element, wherein the length of a distance between the backrest longitudinal supports can be adjusted by means of at least one elongate backrest cross strut arranged in the upper region of the backrest.