# US 12,759,447 B2 · Vehicle seat backrest > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,447 B2 - Document ID: US12759447B2 - Status: Granted - Kind: B2 - Application number: 18/779,818 - Filed: 2024-07-22 - Published: 2024-11-14 - Granted: 2026-10-13 - Earliest claimed: 2020-12-09 - Assignees: FAURECIA Sièges d'Automobile - Applicants: FAURECIA Sièges d'Automobile - Inventors: Jean-Marie Mauffrey; Jean-Yves Piederriere; Etienne Poulet; Benoît Gazaniol; Didier Duriez - Web page: https://patentgrep.com/patent/US12759447B2 ## CPC - B60N 2/665: {using inflatable bladders} - B60N 2/5621: {by air} - B60R 2011/0015: {Back-rests} - B60R 11/0217: {for loud-speakers} - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract A backrest of a vehicle seat comprises a backrest armature, at least one central upholstery module and two side upholstery modules each arranged on a respective side of the central upholstery module. Each of the at least three upholstery modules is fixed to the backrest armature independently of the other two upholstery modules. ## Claims ### Claim 1 A vehicle seat backrest comprising a backrest armature with an upper cross member and a lower cross member, at least one central upholstery module, wherein the at least one central upholstery module comprises a support fixed to the backrest armature and a foam block covering at least a part of the support, wherein the support extends in longitudinal direction between two longitudinal ends of the support, the two longitudinal ends of the support being curved, a first longitudinal end of the two longitudinal ends of the support resting on the upper cross member of the backrest armature, a second longitudinal end of the two longitudinal ends of the support accommodating the lower cross member of the backrest armature, the two longitudinal ends of the support comprising clips complementary to clips on the upper cross member of the backrest armature and the lower cross members of the backrest armature for fixing the support onto the upper and lower cross members of the backrest armature by elastic fitting. ### Claim 2 (depends on 1) The vehicle seat backrest of claim 1, further comprising two side upholstery modules, each arranged on a respective side of the at least one central upholstery module. ### Claim 3 (depends on 2) The vehicle seat backrest of claim 2, wherein each of the upholstery modules is fixable to the backrest armature independently of the other two upholstery modules. ### Claim 4 (depends on 2) The vehicle seat backrest of claim 2, wherein each of the upholstery modules is fixed to the backrest armature independently of the other two upholstery modules. ### Claim 5 (depends on 2) The vehicle seat backrest of claim 2, wherein each upholstery module comprises a piece of upholstery and wherein each piece of upholstery of each upholstery module is independent with respect to the pieces of upholstery of the other upholstery modules. ### Claim 6 (depends on 1) The vehicle seat backrest of claim 1, wherein the at least one central upholstery module comprises an air pump and a plurality of inflatable pouches, in fluid communication with the air pump. ### Claim 7 (depends on 1) The vehicle seat backrest of claim 1, wherein a fan is fixed to the support, the foam block of the at least one central upholstery module comprising through holes, in fluid communication with the fan. ### Claim 8 (depends on 1) The vehicle seat backrest of claim 1, wherein at least one among a loudspeaker and a vibrating device is fixed on the support so as to be arranged at least partially housed in the foam block of the at least one central upholstery module. ### Claim 9 (depends on 2) The vehicle seat backrest of claim 2, wherein each side upholstery module comprises a foam block. ### Claim 10 (depends on 2) The vehicle seat backrest of claim 2, wherein each side upholstery module comprises at least one among a lateral hold adjustment device and a lateral airbag. ### Claim 11 (depends on 9) The vehicle seat backrest of claim 9, wherein each side upholstery module further comprises a support to which the foam block of the side upholstery module is fixed. ### Claim 12 (depends on 2) The vehicle seat backrest of claim 2, wherein at least one among the central upholstery module and the side upholstery modules comprises a respective cover. ### Claim 13 (depends on 2) The vehicle seat backrest of claim 2, further comprising a common cover covering at least a part of the central upholstery module and of the two side upholstery modules. ### Claim 14 (depends on 1) A motor vehicle seat comprising a seating base with a seating base armature and the vehicle seat backrest according to claim 1, the backrest armature being fixed to the seating base armature. ### Claim 15 (depends on 1) A method of assembling the vehicle seat backrest according to claim 1, comprising the steps of: providing the backrest armature; providing at least one central upholstery module; and fixing the at least one central upholstery module to the backrest armature by elastic fitting of the clips on the two longitudinal ends of the support with the complementary clips on the upper cross member of the backrest armature and the lower cross member of the backrest armature. ### Claim 16 (depends on 15) The method of claim 15, wherein the at least one central upholstery module is fixed onto the upper and lower cross members of the backrest armature by: placing the first longitudinal end of the support of the at least one central upholstery module resting on the upper cross member of the backrest armature, pivoting the at least one central upholstery module around a transverse axis, the clips of the first longitudinal end of the support, on the one hand, and the complementary clips of the backrest armature, on the other hand, guiding the movement of the at least one central upholstery module with respect to the backrest armature, and then fixing the second longitudinal end of the support of the at least one central upholstery module onto the lower cross member of the backrest armature. ### Claim 17 (depends on 15) A method of manufacturing a vehicle seat, comprising the steps of: providing a seating base with a seating base armature; assembling the vehicle seat backrest by implementing the method of claim 15; and fixing the vehicle seat backrest to the seating base. ### Claim 18 (depends on 17) The method of manufacturing the vehicle seat according to claim 17, wherein the vehicle seat backrest is fixed to the seating base so as to be able to pivot about an axis transverse with respect to the seating base. ### Claim 19 (depends on 1) A method for replacing the at least one central upholstery module of the vehicle seat backrest according to claim 1, comprising the steps of: i) removing a first central module from the backrest armature; ii) fixing a second central module onto the backrest armature.