Provided is a seat which offers increased ride comfort and less fatigue felt even on long-time sitting. The seat includes a cushion frame, a first support member supported by the cushion frame and configured to support a seated occupant, second support members disposed at left and right sides of the first support member and configured to be deformable, and a restraining portion by which each second support member is restrained in such a manner that its laterally outer side is less likely to sink down than its laterally center side. The seat is configured such that an upper-side support surface for supporting a seated occupant is so restrained by the restraining portion as to assume a first position when no occupant is seated, and to assume a second position when an occupant is seated, the support surface facing further inward in the second position than in the first position.

A support device has a main support surface for a person's body, including an auxiliary device influencing the main support surface shape. The auxiliary device includes: a group of supports supporting the main support surface, positioned on the side of the main support surface facing away from the body-supporting side, the supports each including a sub-support surface; an adjuster for each sub-support surface influencing the height of each sub-support surface. The device also includes a monitor for each sub-support surface monitoring the height of the respective sub-support surface; and a programmable control unit controlling the adjuster. The supports include an elastically bendable plate connected to the adjuster. The bending plate is connected to the sub-support surface to influence its height depending on the extent of bending imposed by the adjuster. The adjuster includes an electromotor on the concave side of the bending plate.

A support device has a main support surface for a person's body, including an auxiliary device influencing the main support surface shape. The auxiliary device includes: a group of supports supporting the main support surface, positioned on the side of the main support surface facing away from the body-supporting side, the supports each including a sub-support surface; an adjuster for each sub-support surface influencing the height of each sub-support surface. The device also includes a monitor for each sub-support surface monitoring the height of the respective sub-support surface; and a programmable control unit controlling the adjuster. The supports include an elastically bendable plate connected to the adjuster. The bending plate is connected to the sub-support surface to influence its height depending on the extent of bending imposed by the adjuster. The adjuster includes an electromotor on the concave side of the bending plate.

A seating support arrangement includes a seating frame, a cover member supported by the seating frame, the cover member having a first elastic modulus in a first direction, the cover member having an outer surface area and a support area that is less than the outer surface area and is configured to support a user, and a polymer film surface layer attached to the support area of the cover member such that the combination of the cover member in the support area and the surface layer has a second elastic modulus in the first direction that is greater than the first elastic modulus.

A seating support arrangement includes a seating frame, a cover member supported by the seating frame, the cover member having a first elastic modulus in a first direction, the cover member having an outer surface area and a support area that is less than the outer surface area and is configured to support a user, and a polymer film surface layer attached to the support area of the cover member such that the combination of the cover member in the support area and the surface layer has a second elastic modulus in the first direction that is greater than the first elastic modulus.

A body-supporting component may have a main body. A 3D lattice structure of the main body may have deflection properties portions of the main body. The main body may be formed by a flexible material according to the 3D lattice structure combined with the deflection properties portions.

A seat assembly includes a base and a support platform spaced above the base. The support platform includes a pad having a hinge portion defining a flex region, wherein the pad is pivotable about the flex region. A link has a lower portion coupled to the base and an upper portion coupled to the pad, wherein the upper portion is pivotable with the pad about the flex region.

A self-adaption breathable cushion comprises a fixed base and a plurality of self-adaptive units integrated side by side and disposed on the fixed base; each of the adaptive units comprises a strap and an elastic member, the elastic member supports the strap to tension above the fixing base; when the strap is pressed and recessed, the elastic member deforms, so that the whole self-adaptive unit moves downwards; when the pressure is removed, the elastic member is reset, and the strap is also reset. The self-adaptive breathable cushion can be deformed self-adaptively according to the weight of a human body to be borne, so as to be attached to the human body, making the human body more comfortable.

An elastomeric load hearing surface with different load support characteristics in different directions. In one embodiment, the surface includes an elastomeric membrane that is oriented in only a single direction, for example, by compression or stretching. In another embodiment, the surface includes mechanical structures, such as connectors and variations in thickness that vary the load support characteristics in different directions. In another embodiment, a surface is both oriented and includes mechanical structures.

Shell for a seat that comprises: at least a frame, conformed and consisting of one or more sub-frames; at least part of the sub-frames being obtained with at least a metal round piece and configured to define at least one functional zone of the shell; at least a net or a plurality of nets structurally associated with at least a part of the sub-frames; possibly at least a padding, made of expanded material, with defined density and rigidity, structurally associated with the individual nets and/or with the individual sub-frames to configure the functional zones with personalized density and rigidity; possibly at least a covering of enhancing material; possibly at least a support base configured to connect the shell to a support. The present invention also concerns the corresponding method to obtain the shell.