WO2021170742A1 - Method for producing motor vehicle seat cushioning - Google Patents
Method for producing motor vehicle seat cushioning Download PDFInfo
- Publication number
- WO2021170742A1 WO2021170742A1 PCT/EP2021/054730 EP2021054730W WO2021170742A1 WO 2021170742 A1 WO2021170742 A1 WO 2021170742A1 EP 2021054730 W EP2021054730 W EP 2021054730W WO 2021170742 A1 WO2021170742 A1 WO 2021170742A1
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- Prior art keywords
- format
- cover
- film
- perforations
- padding
- Prior art date
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Classifications
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- 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
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- 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
- B29C44/145—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining the lining being a laminate
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- 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
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
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- 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
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- 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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
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- 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
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- 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 method of making a padding for a motor vehicle seat.
- the aim of the invention is to overcome these drawbacks.
- the invention provides a method for producing a motor vehicle seat padding, said method comprising the following steps:
- thermoplastic film • stick a thermoplastic film on one side of said first format
- each of said drums having a free end bearing on said film around each of said perforations by compressing said first format when said lid is closed, in order to make a seal around each of said perforations, • injecting into said cap a precursor mixture of elastically compressible foam, so as to produce a foam padding block overmolding the back of said cap and being provided with a plurality of said conduits, said mixture being prevented from entering said perforations by the joints,
- the ventilation ducts are made directly during the block molding operation, the compression produced by the drums associated with the presence of the film also preventing the passage of foam into the perforations.
- FIG.1 is a schematic view in partial section of a padding being produced just before it is removed from the mold
- FIG.2 is a view similar to Figure 1 of the padding once removed from the mold.
- a method for producing a padding 1 for a motor vehicle seat comprising the following steps:
- thermoplastic film 12 on one side of said first format, • making perforations 11 in said first format provided with said film, so that said perforations open out on either side,
- each of said drums • placing said cap in said tank, said second format being disposed against the wall of said tank, each of said drums having a free end 15 bearing on said film around each of said perforations by compressing said first format when said lid is closed, in order to to produce a seal 18 around each of said perforations,
- the medallion 6 can be associated edge to edge, in particular by stitching, with at least one additional complex format comprising at least one layer of additional coating material - which may be of the same type as that of said medallion - of so as to make the dressing cap.
- the first format 2 is based on foam, in particular on polyurethane.
- the first format 2 has a thickness between
- the first format 2 has a density of between 26 and 30 kg / m 3 .
- the film 12 is based on polyurethane
- the film 12 is hot glued, for example at a temperature of between 65 and 80 ° C.
- the film 12 has a thickness of between 50 and 100 microns.
- the second format 3 is provided with a reinforcing layer 16 - so as to prevent its removal after the molding of the block
- a reinforcing mesh 17 is interposed between the film 12 and the first format 2.
- the cover 8 is in one piece, the drums 13 being made from material from said cover.
- the drums 13 are part of a structure separate from the cover 8, said drums being supported on the first format 2 by closing said cover resting on said structure.
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a method for producing motor vehicle seat cushioning (1), the method comprising the following steps: providing a first format (2) and a second format (3) which have a plurality of ventilation openings (5); bonding a thermoplastic film (12) to one side of the first format; making perforations (11) in the first format provided with the film, the formats, once joined together, forming a ventilation inset (6) forming all or part of a soft trim cover for the cushioning; providing a mould having a plurality of barrels (13) intended to create ventilation ducts (14), each of the barrels having a free end (15) forming a seal (18) around each of the perforations.
Description
DESCRIPTION DESCRIPTION
Titre : Procédé de réalisation d’une matelassure de siège de véhicule automobile Title: Process for making a motor vehicle seat padding
L’invention concerne un procédé de réalisation d’une matelassure de siège de véhicule automobile. The invention relates to a method of making a padding for a motor vehicle seat.
Il est connu de mettre en oeuvre un procédé de réalisation d’une matelassure de siège de véhicule automobile, ledit procédé comprenant les étapes suivantes : It is known to implement a method of producing a motor vehicle seat padding, said method comprising the following steps:
• prévoir un premier format de couche de matériau élastiquement compressible, • provide a first layer format of elastically compressible material,
• prévoir un deuxième format de matériau de revêtement pourvu d’une pluralité d’orifices de ventilation, • provide a second format of coating material provided with a plurality of ventilation openings,
• associer par sa périphérie ledit premier format audit deuxième format de manière à ménager une lame d’air entre eux, lesdits formats une fois associés formant un médaillon de ventilation formant tout ou partie d’une coiffe d’habillage de ladite matelassure, • associate by its periphery said first format to said second format so as to leave an air gap between them, said formats once associated forming a ventilation medallion forming all or part of a covering cap of said padding,
• prévoir un moule présentant une cuve et un couvercle, • provide a mold with a tank and a cover,
• disposer ladite coiffe dans ladite cuve, ledit deuxième format étant disposé contre la paroi de ladite cuve, • placing said cap in said tank, said second format being placed against the wall of said tank,
• injecter dans ladite coiffe un mélange précurseur de mousse élastiquement compressible, de manière à réaliser un bloc de rembourrage en mousse surmoulant l’envers de ladite coiffe, • injecting into said cover a precursor mixture of elastically compressible foam, so as to produce a foam padding block overmolding the back of said cover,
• après expansion et polymérisation de ladite mousse, démouler ladite matelassure obtenue, • after expansion and polymerization of said foam, unmold said padding obtained,
• creuser dans ledit bloc une pluralité de conduits de ventilation se prolongeant par une pluralité de perforations dans ledit premier format. • digging in said block a plurality of ventilation ducts extending by a plurality of perforations in said first format.
Le fait de réaliser de tels conduits se prolongeant par les perforations permet de connecter l’envers de la matelassure à un système de ventilation, ce qui permet de réaliser, par l’intermédiaire de la lame d’air, un passage d’air au travers des orifices pour améliorer le confort hygrothermique de l’occupant du siège.
Avec une telle façon de procéder, on est amené à réaliser une opération de reprise sur la matelassure une fois moulée afin de réaliser les conduits et les perforations, ce qui entraîne une complexification de la réalisation de la matelassure et un surcoût. The fact of making such ducts extending through the perforations makes it possible to connect the back of the padding to a ventilation system, which makes it possible to achieve, through the air gap, an air passage through the air gap. through orifices to improve the hygrothermal comfort of the seat occupant. With such a procedure, we have to carry out a recovery operation on the padding once molded in order to produce the conduits and the perforations, which leads to a greater complexity in the production of the padding and an additional cost.
L’invention a pour but de pallier ces inconvénients. The aim of the invention is to overcome these drawbacks.
A cet effet, l’invention propose un procédé de réalisation d’une matelassure de siège de véhicule automobile, ledit procédé comprenant les étapes suivantes : To this end, the invention provides a method for producing a motor vehicle seat padding, said method comprising the following steps:
• prévoir un premier format de couche de matériau élastiquement compressible, • provide a first layer format of elastically compressible material,
• prévoir un deuxième format de matériau de revêtement pourvu d’une pluralité d’orifices de ventilation, • provide a second format of coating material provided with a plurality of ventilation openings,
• coller un film thermoplastique sur une des faces dudit premier format,• stick a thermoplastic film on one side of said first format,
• réaliser des perforations dans ledit premier format pourvu dudit film, de sorte que lesdites perforations débouchent de part et d’autre, • making perforations in said first format provided with said film, so that said perforations open on either side,
• associer par sa périphérie ledit premier format audit deuxième format de manière à ménager une lame d’air entre eux, ledit film étant situé à l’opposé dudit deuxième format, lesdits formats une fois associés formant un médaillon de ventilation formant tout ou partie d’une coiffe d’habillage de ladite matelassure, • associate by its periphery said first format to said second format so as to provide an air space between them, said film being located opposite said second format, said formats once associated forming a ventilation medallion forming all or part of 'a cover for covering said padding,
• prévoir un moule présentant une cuve et un couvercle, la paroi interne dudit couvercle étant pourvue ou étant solidaire d’une pluralité de fûts destinés à créer des conduits de ventilation issus de moulage, lesdits fûts saillant vers l’intérieur dudit moule, • provide a mold having a tank and a cover, the internal wall of said cover being provided with or being integral with a plurality of barrels intended to create ventilation ducts resulting from molding, said barrels projecting towards the interior of said mold,
• disposer ladite coiffe dans ladite cuve, ledit deuxième format étant disposé contre la paroi de ladite cuve, chacun desdits fûts présentant une extrémité libre prenant appui sur ledit film autour de chacune desdites perforations en comprimant ledit premier format quand ledit couvercle est fermé, afin de réaliser un joint d’étanchéité autour de chacune desdites perforations,
• injecter dans ladite coiffe un mélange précurseur de mousse élastiquement compressible, de manière à réaliser un bloc de rembourrage en mousse surmoulant l’envers de ladite coiffe et étant pourvu d’une pluralité desdits conduits, ledit mélange étant empêché de s’introduire dans lesdites perforations par les joints, • placing said cap in said tank, said second format being disposed against the wall of said tank, each of said drums having a free end bearing on said film around each of said perforations by compressing said first format when said lid is closed, in order to make a seal around each of said perforations, • injecting into said cap a precursor mixture of elastically compressible foam, so as to produce a foam padding block overmolding the back of said cap and being provided with a plurality of said conduits, said mixture being prevented from entering said perforations by the joints,
• après expansion et polymérisation de ladite mousse, démouler ladite matelassure obtenue. • after expansion and polymerization of said foam, unmolding said resulting padding.
Avec l’agencement proposé, les conduits de ventilation son réalisés directement lors de l’opération de moulage du bloc, la compression réalisée par les fûts associée à la présence du film empêchant par ailleurs le passage de mousse dans les perforations. With the proposed arrangement, the ventilation ducts are made directly during the block molding operation, the compression produced by the drums associated with the presence of the film also preventing the passage of foam into the perforations.
On s’affranchit ainsi de l’opération de reprise connue de l’art antérieur, ce qui permet de simplifier la fabrication de la matelassure et d’en baisser le coût. This avoids the rework operation known from the prior art, which makes it possible to simplify the manufacture of the padding and to reduce its cost.
D’autres particularités et avantages de l’invention apparaîtront dans la description qui suit, faite en référence aux figures jointes dans lesquelles : Other features and advantages of the invention will become apparent from the following description, made with reference to the accompanying figures in which:
[Fig.1 ] est une vue schématique en coupe partielle d’une matelassure en cours de réalisation juste avant son démoulage, [Fig.1] is a schematic view in partial section of a padding being produced just before it is removed from the mold,
[Fig.2] est une vue analogue à la figure 1 de la matelassure une fois démoulée. [Fig.2] is a view similar to Figure 1 of the padding once removed from the mold.
En référence aux figures, on décrit un procédé de réalisation d’une matelassure 1 de siège de véhicule automobile, ledit procédé comprenant les étapes suivantes : With reference to the figures, a method for producing a padding 1 for a motor vehicle seat is described, said method comprising the following steps:
• prévoir un premier format 2 de couche de matériau élastiquement compressible, • provide a first format 2 of a layer of elastically compressible material,
• prévoir un deuxième format 3 de matériau de revêtement - par exemple en cuir - pourvu d’une pluralité d’orifices 5 de ventilation - ledit deuxième format présentant notamment une forme analogue à celle dudit premier format -, • provide a second format 3 of covering material - for example leather - provided with a plurality of ventilation openings 5 - said second format in particular having a shape similar to that of said first format -,
• coller un film 12 thermoplastique sur une des faces dudit premier format,
• réaliser des perforations 11 dans ledit premier format pourvu dudit film, de sorte que lesdites perforations débouchent de part et d’autre, • stick a thermoplastic film 12 on one side of said first format, • making perforations 11 in said first format provided with said film, so that said perforations open out on either side,
• associer par sa périphérie ledit premier format audit deuxième format de manière à ménager une lame d’air 4 entre eux, ledit film étant situé à l’opposé dudit deuxième format, lesdits formats une fois associés formant un médaillon 6 de ventilation formant tout ou partie d’une coiffe d’habillage de ladite matelassure, • associate by its periphery said first format to said second format so as to provide an air space 4 between them, said film being located opposite said second format, said formats once associated forming a ventilation medallion 6 forming all or part of a covering cap for said padding,
• prévoir un moule présentant une cuve 7 et un couvercle 8, la paroi interne dudit couvercle étant pourvue ou étant solidaire d’une pluralité de fûts 13 destinés à créer des conduits 14 de ventilation issus de moulage, lesdits fûts saillant vers l’intérieur dudit moule, • provide a mold having a tank 7 and a cover 8, the internal wall of said cover being provided with or being integral with a plurality of barrels 13 intended to create ventilation ducts 14 resulting from molding, said barrels projecting towards the inside of said mussel,
• disposer ladite coiffe dans ladite cuve, ledit deuxième format étant disposé contre la paroi de ladite cuve, chacun desdits fûts présentant une extrémité libre 15 prenant appui sur ledit film autour de chacune desdites perforations en comprimant ledit premier format quand ledit couvercle est fermé, afin de réaliser un joint d’étanchéité 18 autour de chacune desdites perforations, • placing said cap in said tank, said second format being disposed against the wall of said tank, each of said drums having a free end 15 bearing on said film around each of said perforations by compressing said first format when said lid is closed, in order to to produce a seal 18 around each of said perforations,
• injecter dans ladite coiffe un mélange précurseur de mousse élastiquement compressible, de manière à réaliser un bloc 9 de rembourrage en mousse surmoulant l’envers de ladite coiffe et étant pourvu d’une pluralité desdits conduits, ledit mélange étant empêché de s’introduire dans lesdites perforations par les joints 18, • injecting into said cover a precursor mixture of elastically compressible foam, so as to produce a block 9 of foam padding overmolding the back of said cover and being provided with a plurality of said conduits, said mixture being prevented from entering into said perforations by the joints 18,
• après expansion et polymérisation de ladite mousse, démouler ladite matelassure obtenue. • after expansion and polymerization of said foam, unmolding said resulting padding.
De façon non représentée, le médaillon 6 peut être associé bord à bord, notamment par couture, à au moins un format annexe de complexe comprenant au moins une couche de matériau annexe de revêtement - qui peut être de même nature que celui dudit médaillon - de manière à réaliser la coiffe d’habillage.
Selon une réalisation, le premier format 2 est à base de mousse, notamment de polyuréthanne. In a manner not shown, the medallion 6 can be associated edge to edge, in particular by stitching, with at least one additional complex format comprising at least one layer of additional coating material - which may be of the same type as that of said medallion - of so as to make the dressing cap. According to one embodiment, the first format 2 is based on foam, in particular on polyurethane.
Selon une réalisation, le premier format 2 présente une épaisseur comprise entreAccording to one embodiment, the first format 2 has a thickness between
8 et 12 mm. 8 and 12 mm.
Selon une réalisation, le premier format 2 présente une masse volumique comprise entre 26 et 30 kg/m3. According to one embodiment, the first format 2 has a density of between 26 and 30 kg / m 3 .
Selon une réalisation, le film 12 est à base de polyuréthanne, According to one embodiment, the film 12 is based on polyurethane,
Selon une réalisation, le film 12 est collé à chaud, par exemple à température comprise entre 65 et 80°C. According to one embodiment, the film 12 is hot glued, for example at a temperature of between 65 and 80 ° C.
Selon une réalisation, le film 12 présente une épaisseur comprise entre 50 et 100 microns. According to one embodiment, the film 12 has a thickness of between 50 and 100 microns.
Selon la réalisation représentée, le deuxième format 3 est pourvu d’une couche de renfort 16 - de manière à empêcher son retrait à l’issue du moulage du blocAccording to the embodiment shown, the second format 3 is provided with a reinforcing layer 16 - so as to prevent its removal after the molding of the block
9 de rembourrage - collée sur son envers, ladite couche étant par exemple en non tissé. 9 padding - glued to its back, said layer being for example nonwoven.
Selon la réalisation représentée, une maille 17 de renfort est interposée entre le film 12 et le premier format 2. According to the embodiment shown, a reinforcing mesh 17 is interposed between the film 12 and the first format 2.
Selon la réalisation représentée, le couvercle 8 est monobloc, les fûts 13 étant issus de matière dudit couvercle. According to the embodiment shown, the cover 8 is in one piece, the drums 13 being made from material from said cover.
En variante non représentée, les fûts 13 sont partie d’une structure séparée du couvercle 8, lesdits fûts étant mis en appui sur le premier format 2 par la fermeture dudit couvercle prenant appui sur ladite structure.
In a variant not shown, the drums 13 are part of a structure separate from the cover 8, said drums being supported on the first format 2 by closing said cover resting on said structure.
Claims
1. Procédé de réalisation d’une matelassure (1) de siège de véhicule automobile, ledit procédé comprenant les étapes suivantes : 1. A method of making a padding (1) for a motor vehicle seat, said method comprising the following steps:
• prévoir un premier format (2) de couche de matériau élastiquement compressible, • provide a first format (2) of a layer of elastically compressible material,
• prévoir un deuxième format (3) de matériau de revêtement pourvu d’une pluralité d’orifices (5) de ventilation, • provide a second format (3) of coating material provided with a plurality of ventilation openings (5),
• coller un film (12) thermoplastique sur une des faces dudit premier format,• sticking a thermoplastic film (12) on one side of said first format,
• réaliser des perforations (11) dans ledit premier format pourvu dudit film, de sorte que lesdites perforations débouchent de part et d’autre, • making perforations (11) in said first format provided with said film, so that said perforations open on either side,
• associer par sa périphérie ledit premier format audit deuxième format de manière à ménager une lame d’air (4) entre eux, ledit film étant situé à l’opposé dudit deuxième format, lesdits formats une fois associés formant un médaillon (6) de ventilation formant tout ou partie d’une coiffe d’habillage de ladite matelassure, • associate by its periphery said first format to said second format so as to provide an air space (4) between them, said film being located opposite said second format, said formats once associated forming a medallion (6) of ventilation forming all or part of a covering cap for said padding,
• prévoir un moule présentant une cuve (7) et un couvercle (8), la paroi interne dudit couvercle étant pourvue ou étant solidaire d’une pluralité de fûts (13) destinés à créer des conduits (14) de ventilation issus de moulage, lesdits fûts saillant vers l’intérieur dudit moule, • provide a mold having a tank (7) and a cover (8), the internal wall of said cover being provided or being integral with a plurality of barrels (13) intended to create ventilation ducts (14) resulting from molding, said barrels projecting towards the interior of said mold,
• disposer ladite coiffe dans ladite cuve, ledit deuxième format étant disposé contre la paroi de ladite cuve, chacun desdits fûts présentant une extrémité libre (15) prenant appui sur ledit film autour de chacune desdites perforations en comprimant ledit premier format quand ledit couvercle est fermé, afin de réaliser un joint d’étanchéité (18) autour de chacune desdites perforations, • placing said cap in said tank, said second format being disposed against the wall of said tank, each of said drums having a free end (15) bearing on said film around each of said perforations by compressing said first format when said cover is closed , in order to produce a seal (18) around each of said perforations,
• injecter dans ladite coiffe un mélange précurseur de mousse élastiquement compressible, de manière à réaliser un bloc (9) de rembourrage en mousse surmoulant l’envers de ladite coiffe et étant pourvu d’une pluralité desdits conduits, ledit mélange étant empêché de s’introduire dans lesdites perforations par les joints (18),
• après expansion et polymérisation de ladite mousse, démouler ladite matelassure obtenue. • injecting into said cover a precursor mixture of elastically compressible foam, so as to produce a block (9) of foam padding overmolding the back of said cover and being provided with a plurality of said conduits, said mixture being prevented from s' introduce into said perforations through the seals (18), • after expansion and polymerization of said foam, unmolding said resulting padding.
2. Procédé selon la revendication 1 , caractérisé en ce que le premier format (2) est à base de mousse. 2. Method according to claim 1, characterized in that the first format (2) is based on foam.
3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le film (12) est à base de polyuréthanne. 3. Method according to one of the preceding claims, characterized in that the film (12) is based on polyurethane.
4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième format (3) est pourvu d’une couche de renfort (16) collée sur son envers. 4. Method according to any one of the preceding claims, characterized in that the second format (3) is provided with a reinforcing layer (16) bonded to its back.
5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu’une maille (17) de renfort est interposée entre le film (12) et le premier format (2). 5. Method according to any one of the preceding claims, characterized in that a reinforcing mesh (17) is interposed between the film (12) and the first format (2).
6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le couvercle (8) est monobloc, les fûts (13) étant issus de matière dudit couvercle. 6. Method according to any one of the preceding claims, characterized in that the cover (8) is in one piece, the drums (13) being made from material of said cover.
7. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les fûts (13) sont partie d’une structure séparée du couvercle (8), lesdits fûts étant mis en appui sur le premier format (2) par la fermeture dudit couvercle prenant appui sur ladite structure.
7. Method according to any one of claims 1 to 5, characterized in that the drums (13) are part of a structure separate from the cover (8), said drums being supported on the first format (2) by the closure of said cover resting on said structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21706980.6A EP4110575A1 (en) | 2020-02-25 | 2021-02-25 | Method for producing motor vehicle seat cushioning |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2001851 | 2020-02-25 | ||
| FR2001851A FR3107467B1 (en) | 2020-02-25 | 2020-02-25 | Process for producing a motor vehicle seat padding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021170742A1 true WO2021170742A1 (en) | 2021-09-02 |
Family
ID=70295452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2021/054730 WO2021170742A1 (en) | 2020-02-25 | 2021-02-25 | Method for producing motor vehicle seat cushioning |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4110575A1 (en) |
| FR (1) | FR3107467B1 (en) |
| WO (1) | WO2021170742A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003950A (en) * | 1995-09-14 | 1999-12-21 | Walinov Ab | Device for ventilating vehicle chairs |
| DE102010005488A1 (en) * | 2010-01-23 | 2010-10-14 | Daimler Ag | Seat cover for cushion of seat system of seat of motor vehicle i.e. passenger car, has reference part that comprises perforations which are only partially provided in region of cover |
| US20110258781A1 (en) * | 2007-07-04 | 2011-10-27 | Toyota Boshoku Kabushiki Kaisha | Breathable cushion and method of manufacturing the same |
-
2020
- 2020-02-25 FR FR2001851A patent/FR3107467B1/en active Active
-
2021
- 2021-02-25 EP EP21706980.6A patent/EP4110575A1/en not_active Withdrawn
- 2021-02-25 WO PCT/EP2021/054730 patent/WO2021170742A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003950A (en) * | 1995-09-14 | 1999-12-21 | Walinov Ab | Device for ventilating vehicle chairs |
| US20110258781A1 (en) * | 2007-07-04 | 2011-10-27 | Toyota Boshoku Kabushiki Kaisha | Breathable cushion and method of manufacturing the same |
| DE102010005488A1 (en) * | 2010-01-23 | 2010-10-14 | Daimler Ag | Seat cover for cushion of seat system of seat of motor vehicle i.e. passenger car, has reference part that comprises perforations which are only partially provided in region of cover |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3107467A1 (en) | 2021-08-27 |
| EP4110575A1 (en) | 2023-01-04 |
| FR3107467B1 (en) | 2022-03-18 |
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