EP4222020A1 - Pièce en mousse, en particulier pour un siège de véhicule, procédé de production d'une pièce en mousse et siège de véhicule - Google Patents

Pièce en mousse, en particulier pour un siège de véhicule, procédé de production d'une pièce en mousse et siège de véhicule

Info

Publication number
EP4222020A1
EP4222020A1 EP21786808.2A EP21786808A EP4222020A1 EP 4222020 A1 EP4222020 A1 EP 4222020A1 EP 21786808 A EP21786808 A EP 21786808A EP 4222020 A1 EP4222020 A1 EP 4222020A1
Authority
EP
European Patent Office
Prior art keywords
foam
foam part
layer
fleece layer
vehicle seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21786808.2A
Other languages
German (de)
English (en)
Inventor
Laurent Hugues
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adient US LLC
Original Assignee
Adient US LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adient US LLC filed Critical Adient US LLC
Publication of EP4222020A1 publication Critical patent/EP4222020A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1266—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7011—Upholstery springs ; Upholstery of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1209—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B29K2105/0818—Fleece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
    • B29K2223/10—Polymers of propylene
    • B29K2223/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2267/00—Use of polyesters or derivatives thereof as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2623/10—Polymers of propylene
    • B29K2623/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2667/00—Use of polyesters or derivatives thereof for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0094—Geometrical properties
    • B29K2995/0097—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/771—Seats

Definitions

  • the invention relates to a foam part, in particular for a vehicle seat, with a textile layer and a foam body, in particular made of a polyurethane foam, the textile layer being designed as a three-dimensionally shaped fleece layer.
  • the invention also relates to a method for producing a foam part and a vehicle seat.
  • Foam parts for vehicle seats are known from use, which are used to cushion a seat structure and are intended to offer a user of the vehicle seat the best possible seating comfort.
  • WO 2009/036841 A1 discloses a backrest for a vehicle seat in a motor vehicle, the backrest being formed from a one-piece or multi-piece padded wire frame.
  • the wire frame gives a foam body of the foam part the necessary rigidity.
  • WO 2014/106592 A1 discloses a foam part, in particular for a vehicle seat, with a first foam layer facing a user and a second foam layer facing away from the user, the first foam layer having a different hardness and/or density than the second foam layer, the first Foam layer has several comfort tubes facing the user.
  • the first layer of foam can be separated from the second layer of foam be separated by a network, in particular made of polyethylene, jute, gauze or fleece.
  • WO 2020/030725 A1 discloses a foam part for a vehicle seat, with a textile layer and a foam body made of a foam material, in particular a polyurethane foam, at least partially accommodating the textile layer, the textile layer not being completely penetrated by the foam material and the textile layer being liquid-repellent, in particular hydrophobic properties.
  • the textile layer can be a fleece layer.
  • PU foam parts known from the prior art are not rigid enough to be implemented alone in a seating environment. Therefore, additional support by means of a supporting seat structure is always required.
  • a seat structure can be made of metal or plastic.
  • Vehicle seats known from the prior art therefore consist of a seat structure and a foam part carried by the seat structure.
  • the seat structure usually has a very high weight, is expensive and requires installation space, which, however, is often scarce. Foam parts ensure comfort.
  • the seat structure parts provide the necessary structural support for the foam parts.
  • the invention is based on the object of improving a foam part of the type mentioned at the outset, in particular of simplifying or even completely avoiding a seat structure carrying the foam part. This is intended to create the possibility of building a vehicle seat which is lighter and more comfortable than the prior art and which also requires less installation space. In particular, it is an object to replace a wire frame for a foam part which, while increasing the rigidity of the foam part, is heavy and expensive.
  • the object of the invention is also to provide a method for producing a foam part according to the invention and a light and inexpensive vehicle seat with a foam part according to the invention.
  • a foam part in particular for a vehicle seat, with a textile layer and a foam body, in particular made of a polyurethane foam, the textile layer being designed as a three-dimensionally shaped fleece layer, the fleece layer having a grammage of 800 to 1200 grams per square meter .
  • the fleece layer has a grammage of 800 to 1200 grams per square meter creates the possibility of making the foam part load-bearing and of simplifying a seat structure carrying the foam part or even doing without it.
  • the three-dimensional shape of the fleece layer increases its rigidity.
  • a foam part according to the invention with a three-dimensional Fleece layer can have a very high rigidity and still be very comfortable. Since the fleece layer is very stiff due to the selected grammage, good comfort can be achieved even with a low foam thickness of the foam body. Compared to the prior art, this makes it possible to achieve small thicknesses of the foam part without the foam being too brittle or having a tendency to tear.
  • the nonwoven layer can be thermoformed.
  • the fleece layer can be foamed.
  • the fleece layer can be partially penetrated with foam material of the foam body.
  • the fleece layer can be completely penetrated with foam material of the foam body.
  • the fleece layer can have polyester fibers.
  • the fleece layer can consist of polyester fibers.
  • the nonwoven layer may include polypropylene fibers.
  • the fleece layer can consist of polypropylene fibers.
  • the fleece layer may include polyester fibers and polypropylene fibers.
  • the fleece layer can consist of polyester fibers and polypropylene fibers.
  • the fleece layer can have a layer thickness of 0.7 millimeters to 5 millimeters, ie a layer thickness of at least 0.7 millimeters, but no more than 5 millimeters.
  • the fleece layer preferably has a layer thickness of 1.3 millimeters to 3.3 millimeters, in particular 1.5 millimeters to 2.5 millimeters. Most preferably, the fleece layer has a layer thickness of 2.3 millimeters to 2.5 millimeters.
  • the fleece layer preferably has a grammage of 850 grams per square meter to 950 grams per square meter, ie the grammage is at least 850 grams per square meter and at most 950 grams per square meter. Most preferably, the fleece layer has a grammage of 900 grams per square meter.
  • the fleece layer preferably has a modulus of elasticity of 300 megapascals to 1000 megapascals. Most preferably, the nonwoven layer has a modulus of elasticity from 381 megapascals to 850 megapascals.
  • the compliance of the fleece layer is preferably between minus 1 millimeter and minus 0.1 millimeter as measured according to Nissan standard M0086.
  • the tensile strength of the fleece layer is preferably 8 megapascals to 20 megapascals, most preferably 10 megapascals to 12 megapascals, in particular 11 megapascals.
  • the high tensile strength of the fleece layer allows attachment of external plastic, composite or metal components. Additional functions and components of the vehicle seat can be integrated into the fleece layer, for example spacers, spring mat fixations, massage mats, cable snap connections, trimming channels and/or ventilation fixations. In the case of foam parts known from the prior art, direct attachment of external components is not possible because of the risk of tearing out.
  • the pull-out force of the fleece layer is preferably greater than 200 Newtons.
  • the fleece layer preferably has a Poisson's ratio of 0.3 to 0.5, most preferably 0.4.
  • the elongation at break of the fleece layer is preferably 30% to 40%, most preferably 35%.
  • the Shore hardness is preferably greater than 50 Shore A.
  • the Shore hardness is preferably 70 Shore A to 90 Shore A, most preferably 80 Shore A.
  • the fleece layer can be stiffened by ribs.
  • Five ribs are preferably arranged over a length of 40 centimeters. Each rib is preferably 2 centimeters to 3 centimeters wide.
  • the ribs can be acute-angled.
  • the ribs can be aligned vertically.
  • the depth of the ribs preferably corresponds approximately to the depth of the foam body.
  • the number and shape of the ribs can vary depending on the expected feeling of rigidity, the seat structure of the vehicle seat and customer requirements.
  • the three-dimensionally shaped fleece layer is preferably encapsulated by a foam body, in particular polyurethane foam with a high level of resistance.
  • the foam body can have a material thickness of 5 millimeters to 60 millimeters.
  • a fleece layer-to-foam ratio can be higher in a foam part according to the invention than in foam parts known from the prior art.
  • a recycled content can therefore reach a higher value, in particular up to 80%.
  • the object is also achieved according to the invention by a method for producing a foam part according to the invention, having at least the three method steps:
  • the non-woven layer Before being placed in the foaming tool, the non-woven layer can be reshaped from a largely flat non-woven layer into a three-dimensionally shaped non-woven layer.
  • the forming can be done by a deep-drawing process.
  • the object is also achieved according to the invention by a vehicle seat with at least one foam part according to the invention, in particular produced using a method according to the invention.
  • the vehicle seat can have a seat part.
  • the vehicle seat can have a backrest.
  • the backrest can be attached to the seat part.
  • the backrests can be pivotably attached to the seat part, in particular by means of at least one fitting.
  • an airbag system of the vehicle seat can be attached to at least one fleece layer.
  • the fleece layer has a sufficiently high rigidity.
  • the seat part can have at least one supporting seat structure which carries at least one foam part according to the invention or supports it in sections.
  • the backrest can have at least one load-bearing seat structure that carries or partially supports at least one foam part according to the invention.
  • the invention provides a high-stiffness and thin foam pad by over-foaming a high-stiffness, nonwoven, thermoformed web.
  • the nonwoven composition typically contains polyester fibers.
  • Polypropylene can also be included.
  • a preferred fleece thickness is 2 millimeters, but can vary between 0.7 millimeters and 5 millimeters.
  • a preferred (specific) weight is 900 g/m 2 , but can vary between 400 and 1800 g/m 2 .
  • thermoformed mat Preferably, a high-stiffness thermoformed mat is used.
  • the highly stiff fleece can be foamed over with polyurethane foam.
  • the foam may or may not penetrate the fleece.
  • the stiffness of thermoformed nonwovens can be adjusted by varying parameters of the thermoforming process, the geometry of the nonwoven, or the nonwoven material.
  • the non-woven material can be a non-woven polyester or other polymer.
  • the nonwoven material can contain additives that can change the mechanical properties of the thermoformed nonwoven.
  • Fig. 5 a non-woven layer of the foam part from Fig. 4 having a plurality of ribs
  • the foam part 100 has a three-dimensionally shaped fleece layer 102 and a foam body 104 .
  • the foam body 104 is foamed from a foam material, in particular polyurethane foam.
  • the foam part 100 is three-dimensionally shaped.
  • the fleece layer 102 is three-dimensionally shaped.
  • the foam body 104 is three-dimensionally shaped.
  • this has the preferably thermoformed fleece layer 102 for reinforcement, in particular stiffening, of the foam part 100 .
  • the fleece layer 102 When mounted in the vehicle seat, the fleece layer 102 is supported, preferably not completely, on a supporting seat structure, in particular a support frame or support frame of the vehicle seat. In the present case, the fleece layer 102 is only covered on one side with the foam body 104 .
  • the fleece layer 102 is connected to the foam body 104 to form the foam part 100 .
  • the fleece layer 102 can be partially or completely interspersed with foam material of the foam body 104 .
  • the foam part 200 has a three-dimensionally shaped fleece layer 202 and a foam body 204 .
  • the foam part 200 is three-dimensionally shaped.
  • the foam body 204 is foamed from a foam material, in particular polyurethane foam.
  • the fleece layer 202 is three-dimensionally shaped.
  • the foam body 204 is three-dimensionally shaped.
  • the fleece layer 202 can be partially or completely interspersed with foam material of the foam body 204 .
  • the foam part 200 serves as a seat cushion for a seat part of a vehicle seat according to the invention.
  • the foam part 200 On an underside facing away from an occupant of the vehicle seat, which when using the foam part 200 is preferably not completely supported on a bearing frame or support frame of the vehicle seat, the foam part 200 has the preferably thermoformed fleece layer 202 for reinforcing the foam part 200.
  • the non-woven layer 202 is covered on both sides with the foam body 204 .
  • the fleece layer 202 is connected to the foam body 204 to form the foam part 200 .
  • the fleece layer 202 can be partially or completely interspersed with foam material of the foam body 204 .
  • Fig. 3 shows a vehicle seat 1 according to the invention, comprising a seat part 10 and a backrest 20 whose inclination can be adjusted relative to the seat part 10.
  • the seat part 10 has a supporting seat structure 12 which carries a foam part 300 according to the invention according to a third exemplary embodiment.
  • the foam part 300 is covered by a cover 306, preferably made of a fabric or an animal skin (leather).
  • the foam part 300 is covered by the cover 306 in FIG. 3 and is therefore not visible, which is why the reference line of the reference number of the foam part 300 is broken.
  • the foam part 300 corresponds to the previously described foam parts 100 in terms of its structure and its function; 200.
  • the foam part 300 has a corresponding fleece layer and a corresponding foam body.
  • the cover 306 can be suspended, ie fastened, in a manner known per se on the supporting seat structure and/or on connecting elements foamed into the foam part.
  • the cover 306 can be or can be connected to the fleece layer at least in places.
  • the foam part 400 has a three-dimensionally shaped fleece layer 402 in each of the two outer edge regions of a foam body 404, only one of the two fleece layers 402 being shown in FIG.
  • the foam body 404 is three-dimensionally foamed from a foam material, in particular polyurethane foam.
  • the fleece layer 402 is three-dimensionally shaped.
  • the foamed body 404 is three-dimensionally shaped.
  • the fleece layer 402 can be partially or completely interspersed with foam material of the foam body 404 .
  • the foam part 400 serves as a seat cushion for a seat part of a vehicle seat according to the invention.
  • FIG. 5 shows a fleece layer 402 of the foam part 400.
  • the fleece layer 402 is stiffened by ribs 406.
  • FIG. In the present case, the fleece layer has six ribs 406 which are arranged next to one another and are integrated into the fleece layer 402 .
  • the fleece layer 402 is approximately L-shaped with a first leg 408 and a second leg 410.
  • the two legs 408, 410 are stiffened relative to one another by the ribs 406.
  • FIG. 6 shows an arrangement of two fleece layers 502 for a foam part according to a fifth exemplary embodiment in an opened foaming tool 510 for producing the foam part.
  • the two fleece layers each have five ribs 506 for stiffening.
  • the ribs 506 are aligned substantially parallel to one another and are spaced apart from one another.
  • 7 shows a section of a foam part 600 according to the invention according to a sixth exemplary embodiment.
  • the foam part 600 has a fleece layer with ribs 606 that are completely surrounded by a foam body 604 .
  • a method according to the invention for producing a foam part 100 according to the invention; 200; 300; 400; 600 provides that in a method step, in particular a first method step, at least one fleece layer 502, in particular a three-dimensionally shaped one beforehand, is placed in a foaming tool 510.
  • a foamable material is fed into the foaming tool 510.
  • the foamable material foams in the foaming tool 510 to form the foam body 104; 204; 404; 604 and thereby connects in a form-fitting and/or cohesive manner to the fleece layer 102; 202; 402; 502.
  • the foam part 100 is removed; 200; 300; 400; 600 from the foam tool 510.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne une pièce en mousse (100 ; 200 ; 300 ; 400 ; 600), en particulier pour un siège de véhicule, comprenant une couche textile et un corps en mousse (104 ; 204 ; 404 ; 604), en particulier composé d'une mousse de polyuréthane, la couche textile étant conçue sous la forme d'une couche non-tissée formée en trois dimensions (102 ; 202 ; 402 ; 502), la couche non-tissée (102 ; 202 ; 402 ; 502) présentant un grammage de 800 à 1 200 grammes par mètre carré. L'invention concerne également un procédé de production d'une pièce en mousse (100 ; 200 ; 300 ; 400 ; 600) et un siège de véhicule (1) présentant au moins une pièce en mousse (300).
EP21786808.2A 2020-09-29 2021-09-29 Pièce en mousse, en particulier pour un siège de véhicule, procédé de production d'une pièce en mousse et siège de véhicule Pending EP4222020A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020125382 2020-09-29
DE102021102229.0A DE102021102229A1 (de) 2020-09-29 2021-02-01 Schaumteil, insbesondere für einen Fahrzeugsitz, Verfahren zur Herstellung eines Schaumteils, sowie Fahrzeugsitz
PCT/EP2021/076723 WO2022069504A1 (fr) 2020-09-29 2021-09-29 Pièce en mousse, en particulier pour un siège de véhicule, procédé de production d'une pièce en mousse et siège de véhicule

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214915A1 (de) 2021-09-22 2023-03-23 Adient Us Llc Formkörper für eine Sitzkomponente Verfahren zur Herstellung eines Formkörpers
EP4257421B1 (fr) 2022-04-08 2025-06-11 Adient US LLC Siege de vehicule
DE102022209377B4 (de) 2022-04-08 2024-07-04 Adient Us Llc Fahrzeugsitz
EP4566878A1 (fr) * 2024-09-23 2025-06-11 Inmuebles Molí, SL Siège léger pour configuration à haute densité et groupe de sièges adjacents pour configurations à haute densité

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955159A1 (de) * 1999-11-17 2001-05-23 Johnson Controls Gmbh Polsterteil, insbesondere für einen Kraftfahrzeugsitz, sowie Formwerkzeug und Verfahren zu seiner Herstellung
US7276275B2 (en) * 2004-04-22 2007-10-02 Highland Industries, Inc. Laminated spacer fabric
DE102007043703A1 (de) 2007-09-13 2009-03-19 Volkswagen Ag Hintersitz-Lehne mit einem Mittelarmlehnenmodul
JP5577708B2 (ja) * 2010-01-12 2014-08-27 株式会社ブリヂストン 発泡成形体用補強材、発泡成形部材及び発泡成形部材の製造方法
EP2417876B1 (fr) * 2010-08-10 2013-04-24 Schukra Gerätebau GmbH Corps de coussin de siège et procédé de production d'un corps de coussin de siège
JP5936848B2 (ja) 2011-11-18 2016-06-22 トヨタ紡織株式会社 車両用シート及びその製造方法
JP2013233287A (ja) * 2012-05-09 2013-11-21 Toyota Boshoku Corp 車両用シート
DE202012007510U1 (de) * 2012-08-03 2012-08-13 J.H. Ziegler Gmbh Schichtaufbau für ein Sitzpolster
DE102013209465B4 (de) 2013-01-04 2017-01-12 Johnson Controls Gmbh Schaumteil, insbesondere für einen Fahrzeugsitz, sowie Werkzeug und Verfahren zur Herstellung eines Schaumteils
FR3009224B1 (fr) * 2013-08-02 2016-01-01 Faurecia Sieges Automobile Procede de formage de garniture pour siege automobile
FR3009222B1 (fr) * 2013-08-02 2016-01-01 Faurecia Sieges Automobile Formage d'une garniture pour siege automobile
DE102014211374A1 (de) * 2014-06-13 2015-12-17 Johnson Controls Gmbh Verfahren zur Herstellung eines mit einem Bezug versehenen Elementes und ein solches Element
WO2016205091A1 (fr) * 2015-06-13 2016-12-22 Ciuperca Romeo Iiarian Gaine en mousse renforcée de tissu stratifié hybride imprégné de matériau faisant barrière à l'air et perméable à la vapeur
EP3208375A1 (fr) * 2016-02-16 2017-08-23 Schukra Gerätebau GmbH Procédé et appareil de production d'un produit fibreux non tissé fibreux
DE102016213791B4 (de) * 2016-05-04 2025-08-07 Adient Us Llc Bauteil und Verfahren zu dessen Herstellung
FR3055828B1 (fr) * 2016-09-09 2019-11-29 Faurecia Sieges D'automobile Realisation d'une garniture en mousse pour element de siege pour vehicule automobile
DE102017113098A1 (de) * 2017-06-14 2018-12-20 Proseat Gmbh & Co. Kg Polsterteil eines Fahrzeugsitzes mit einem umschäumten 3D-Formvlies zur Versteifung einer Seitenwange
WO2020030725A1 (fr) 2018-08-08 2020-02-13 Adient Engineering and IP GmbH Pièce en mousse, en particulier pour un siège de véhicule, ainsi que procédé de fabrication d'une pièce en mousse
CN113039067A (zh) * 2018-09-25 2021-06-25 普罗普里特公司 复合泡沫制品
US12083754B2 (en) * 2018-10-03 2024-09-10 Zephyros, Inc. Composite structure
FR3086906B1 (fr) * 2018-10-09 2021-06-18 Tesca France Matelassure pour siege de vehicule automobile
US11702208B2 (en) * 2019-08-29 2023-07-18 Safran Seats Usa Llc Auxetic support elements with ergonomic curvatures for passenger seats
US20220098770A1 (en) * 2020-09-25 2022-03-31 Piana Nonwovens, LLC. Cushion or pad device formed from vertically lapped nonwoven

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CN115989124A (zh) 2023-04-18
DE102021102229A1 (de) 2022-03-31
WO2022069504A1 (fr) 2022-04-07
CN120886718A (zh) 2025-11-04
US12420460B2 (en) 2025-09-23
US20230347556A1 (en) 2023-11-02

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