# US 2017/0283070 A1 · Seat Back for Vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0283070 A1 - Document ID: US20170283070A1 - Status: Published application - Kind: A1 - Application number: 15/469,013 - Filed: 2017-03-24 - Published: 2017-10-05 - Earliest claimed: 2016-04-01 - Assignees: Mirus Aircraft Seating Ltd. - Applicants: MIRUS Aircraft Seating Ltd. - Inventors: Phil Hall; Ben McGuire - Web page: https://patentgrep.com/patent/US20170283070A1 ## CPC - B64D 11/0647: {Seats characterised by special upholstery or cushioning features} - A47C 31/001: {Fireproof means} - B60N 2/64: Back-rests {or cushions (B60N2/2222 takes precedence)} - B60N 2/68: Seat frames - B60N 2/686: {Panel like structures} - B60N 2/7011: {of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics} - B60N 2/7017: {characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - A47C: CHAIRS; SOFAS; BEDS - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract A seat back assembly for a vehicle such as an automobile or an aircraft includes a foam support structure. The foam support structure panel is configured to provide a support structure against which the upper body and/or back of a user rests in use. The foam structure may include two or more regions having different foam density and/or firmness. ## Claims ### Claim 1 A seat back assembly comprising: a first support structure, the first support structure being made of a foam material and being configured to provide a support structure against which the upper body and/or back of a user rests in use. ### Claim 2 (depends on 1) A seat back assembly as claimed in claim 1, wherein the first support structure includes expanded polypropylene. ### Claim 3 (depends on 1) A seat back assembly as claimed in claim 1, wherein the first support structure has a molded density of between 30 g/liter and 65 g/liter and/or a firmness of at least 200 N. ### Claim 4 (depends on 1) A seat back assembly as claimed in claim 1, wherein the seat back assembly further includes a second support structure. ### Claim 5 (depends on 4) A seat back assembly as claimed in claim 4, wherein the second support structure includes a rigid panel. ### Claim 6 (depends on 5) A seat back assembly as claimed in claim 5, wherein the rigid panel includes molded plastic and/or a frame. ### Claim 7 (depends on 6) A seat back assembly as claimed in claim 6, wherein the frame includes carbon-fiber. ### Claim 8 (depends on 1) A seat back assembly as claimed in claim 1, wherein the first support structure includes first and second regions, and wherein a molded density of the first region is different from a molded density of the second region. ### Claim 9 (depends on 1) A seat back assembly as claimed in claim 1, wherein the first structure includes third and fourth regions, and wherein a surface compressibility of the third region is different from a surface compressibility of the fourth region. ### Claim 10 (depends on 9) A seat back assembly as claimed in claim 9, wherein the first and second regions are integrally formed. ### Claim 11 (depends on 9) A seat back assembly as claimed in claim 9, wherein the third and fourth regions are integrally formed. ### Claim 12 (depends on 1) A seat back assembly as claimed in claim 1, wherein the first support structure exhibits fire resistive properties. ### Claim 13 (depends on 1) A seat back assembly as claimed in claim 1, further including a cover that extends over at least a part of the surface of the first support structure. ### Claim 14 (depends on 1) A seat back assembly as claimed in claim 1, wherein a molded density and thickness of the first region are different from a molded density and thickness of the second region, and wherein the first region is provided at a position corresponding to the lower back of an occupant use, and the second region is provided at a position corresponding to the upper back of an occupant in use. ### Claim 15 (depends on 1) A seat having a seat back assembly according to claim 1. ### Claim 16 A method of manufacturing a seat back comprising the step of forming a first support structure from a foam material, wherein the foam material is manipulated so as to have a selected shape and/or geometry. ### Claim 17 (depends on 16) A method as claimed in claim 16 further including the step of securing the first support structure relative to a second support structure such that the foam structure is arranged to provide a support structure against which the upper body and/or back of a user rests in use. ### Claim 18 (depends on 16) A method as claimed in claim 16 wherein the step of forming a first structure includes forming two or more regions from a foam material each region having different foam density and/or firmness.