At a vehicle seat, resistance to relative displacement of a passenger in a left-right direction is larger at both left-right direction side portions of a front surface of an upper portion of a backrest than at a left-right direction central portion. Further, a seat cushion has left and right side reinforcing portions that reinforce portions of a cushion pad from outer sides in a left-right direction, and from obliquely lower sides, of front-rear direction central portions of thigh portions of the passenger, and left and right lower surface reinforcing portions that reinforce portions of a lower surface of the cushion pad at outer sides in a left-right direction, and at obliquely lower sides, of buttock portions of the passenger.

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.

A method of making a vehicle seat includes molding a discontinuous layer of foam on a non-decorative side of a decorative layer of material to form a seat panel that subsequently forms part of an exterior surface of the seat. A portion of the decorative layer is positioned in a foam molding cavity, and another portion of the decorative layer is excluded from the molding cavity. The excluded portion can be temporarily folded into a loop and reside in a secondary cavity of the molding tool during molding. The discontinuous layer of foam can be wider than the molding tool with foam portions selectively positioned along the decorative layer.

A seat support is provided with a plurality of layers of a non-foam material to mount to a seat frame and to support an occupant upon the seat frame. The plurality of layers is stacked upon each other. At least one of the plurality of stacked layers has a generally uniform thickness.

A fireproof buffering structure includes a buffering plate and a fireproof plate attached thereto. A combustion rate of the fireproof plate is lower than that of the buffering plate. In contrast to conventional buffering structures, the fireproof buffering structure adopts the combined buffering plate and fireproof plate. The buffering plate has good impact absorbing capacity for providing a soft and comfortable seating environment and buffering and protection effects during a crash accident, and the fireproof plate can reduce the combustion rate of the integral structure when catching fire. Therefore, the fireproof buffering structure achieves the purposes of safety and comfort. The present application further discloses a supporting cushion apparatus which includes a covering member and the aforementioned fireproof buffering structure accommodated therein. The present application further discloses a child safety car seat which includes the aforementioned fireproof buffering structure and the supporting cushion apparatus.

A seat assembly for a vehicle seat may have a structural component with multiple reinforcing ribs, a cushion layer, an insert layer which is arranged between the structural component and the cushion layer, at least one component which is secured to the structural component, and at least one securing device. The at least one securing device may secure both the insert part as well as the component to the structural component. A method for assembling such a seat assembly is also described. In one method step, the insert part is secured to the structural component by at least one securing device, and in the same method step or a subsequent method step or a preceding method step the at least one component is secured to the at least one securing device. A vehicle seat have such a seat assembly is also provided.

A filling-body manufacturing method is a method of manufacturing a filling body 8 that fills a hole part 74 formed at a seat body 7 and at least part of which is bonded to the seat body 7 in a passenger-seat cushion member including the seat body 7 and the filling body, the filling body 8 being a porous structural body 1S made of flexible resin or rubber, the filling-body manufacturing method including a shaping step of shaping the filling body 8 by using a 3D printer.

There is provided a clip holding unit 50 to be used during a foam molding of a seat pad 20, and the seat pad 20 includes a clip 24 used for attaching a seat cover 18 to the seat pad 20. The clip holding unit 50 is provided in a lower mold 42 of a molding mold 40, and holds the clip 24 during the foam molding. The clip holding unit 50 includes a locking portion 54 to be sandwiched between a pair of locking pieces 30 of the clip 24; a base portion 55 extending from the lower mold 42 to the locking portion 54; and an eaves portion 56 projecting laterally from the base portion 55 as going upward from below.

A cushion or pad device is provided. The device comprises at least one layer of nonwoven material defining a volume with length, width, and depth dimensions, wherein the vertically lapped nonwoven material comprises at least one bulk fiber, wherein the bulk fiber comprises a thermoplastic polyester; and at least one elastomeric binder fiber. Methods of preparing the cushion or pad device are also provided.

A headrest assembly includes a lattice matrix having a plurality of three-dimensional (3D) cells. Each 3D cell of includes a node and a plurality of links outwardly extending from the node. The lattice matrix includes a plurality of sections including a first section having a first overall elastic modulus, a second section positioned adjacent to the first section and having a second overall elastic modulus that is higher than the first overall elastic modulus of the first section, and a third section positioned adjacent to the second section and having a third overall elastic modulus that is higher than the second overall elastic modulus of the second section. The lattice matrix is integrally constructed using an additive manufacturing technique, wherein the 3D cells of each section are provided in various patterns and cured to varying degrees to provide the varying overall elastic moduli of each section of the lattice matrix.