Abstract: A cushion body which has a force to support a large load and both a soft touch feeling and can maintain an undulation shape of a groove portion and the like provided on a contact surface with a seat occupant favorable, a seat using the same, and a manufacturing method thereof are provided.

Abstract: To provide a seat having a three-dimensional complex undulated cushion body securing hardness in a stress direction and excelling in dispersibility of the stress and durability, and a method of manufacturing the same.

Abstract: A cushion body, which can secure both soft touch feeling and durability, a seat having the same, and a manufacturing method thereof are provided. A cushion body 11 is constituted by stacking a sheet-like fibrous structure 4a with a low density in which webs 2 are stacked such that their extending direction conforms with a thickness direction T of the cushion body and a sheet-like fibrous structure 4b with a high density whose flexing degree to load in the thickness direction T is smaller than that of the sheet-like fibrous structure 4a with a low density, where the sheet-like fibrous structure 4a with a low density is disposed nearer a sitting surface 10a than the sheet-like fibrous structure 4b with a high density. Since the sheet-like fibrous structure 4a with a low density on the side of the sitting surface 10a receives load from the outside of the cushion body 11 due to sitting and flexes largely, it provides soft touch feeling to an sitting occupant.

Abstract: A cushion body, which can secure both a soft touch feeling and favorable shape reproduction of a groove portion, a seat having the same, and a manufacturing method thereof are provided. A cushion body 11 is formed by stacking a plurality of sheet-like fibrous structures 4a to 4e, a groove portion 12 is formed in a surface layer, and the sheet-like fibrous structures 4a to 4e have a web 2 stacked so that the web extends in a thickness direction of the fibrous structures. The surface layer sheet-like fibrous structure 4e has a thickness substantially equal to or smaller than a depth of the groove portion 12.

Abstract: A cushion body which has a force to support a large load and both a soft touch feeling and can maintain an undulation shape of a groove portion and the like provided on a contact surface with a seat occupant favorable, a seat using the same, and a manufacturing method thereof are provided.

Abstract: [Problem] To provide a seat having a three-dimensional complex undulated cushion body securing hardness in a stress direction and excelling in dispersibility of the stress and durability, and a method of manufacturing the same.

Abstract: A vehicle seat includes a base frame (14) attached to a vehicle body, a plate-like movable plate (13) mounted to the base frame by a front mounting shaft (16), and a cushioning mechanism (18) disposed between the base frame and the movable plate. The cushioning mechanism includes an upper connector (21) connected to the movable plate and a lower connector (24) connected to the base frame such that the upper connector and the lower connector are coupled to each other by a viscous material damper (32) and a spring (33). The viscous material damper is adapted to apply resistance to relative movement of the upper connector and lower connector and the spring is adapted to receive and support a load acting on the lower connector from the upper connector.

Abstract: A vehicle seat includes a seat back, a seat cushion, and a system for facilitating relieving of fatigue of a person sitting on the vehicle seat for many hours.

Abstract: A vehicle seat includes a seat back, a seat cushion, and a system for facilitating relieving of fatigue of a person sitting on the vehicle seat for many hours.

Abstract: A vehicle seat comprises a main seat portion, a main backrest rotatably attached to the main seat portion, and a retractable sub vehicle seat. The sub vehicle seat has a recess formed on a rear side of the main backrest, a sub backrest rotatably attached to the main backrest, and a locking mechanism for holding the sub backrest on a retracted position or an upright position. The main backrest has a frame assembly rotatably attached to the main seat portion, a front cushion section attached to a front side of the frame assembly, and a rear cushion section attached to a rear side of the frame assembly. The rear cushion section is positioned in a bottom of the recess for supporting buttocks of a passenger who sits on the recess. The rear cushion section has a dent portion for supporting the buttocks and a bulged portion for supporting thighs of the passenger.