FR2944228A1 - Complex forming method for cushioning cover of seat of motor vehicle, involves pressing back face of material layer against fused sub-layer in order to adhere back face with fused sub-layer and to obtain complex - Google Patents

Complex forming method for cushioning cover of seat of motor vehicle, involves pressing back face of material layer against fused sub-layer in order to adhere back face with fused sub-layer and to obtain complex Download PDF

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Publication number
FR2944228A1
FR2944228A1 FR0901820A FR0901820A FR2944228A1 FR 2944228 A1 FR2944228 A1 FR 2944228A1 FR 0901820 A FR0901820 A FR 0901820A FR 0901820 A FR0901820 A FR 0901820A FR 2944228 A1 FR2944228 A1 FR 2944228A1
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France
Prior art keywords
layer
sub
complex
foam
back face
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Granted
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FR0901820A
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French (fr)
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FR2944228B1 (en
Inventor
Carles Quintana
Antonio Nunez
Gamez Modesto Aguilera
Albert Soy
Jordi Puig
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Centre dEtude et de Recherche pour lAutomobile CERA
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Centre dEtude et de Recherche pour lAutomobile CERA
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Priority to FR0901820A priority Critical patent/FR2944228B1/en
Publication of FR2944228A1 publication Critical patent/FR2944228A1/en
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Publication of FR2944228B1 publication Critical patent/FR2944228B1/en
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Classifications

    • 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
    • B60N2/58—Seat coverings
    • B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings 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
    • B29C44/145—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining the lining being a laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B32B5/145—Variation across the thickness of the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/07—Parts immersed or impregnated in a matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/04—Treatment by energy or chemical effects using liquids, gas or steam
    • B32B2310/0445—Treatment by energy or chemical effects using liquids, gas or steam using gas or flames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2375/00—Polyureas; Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2601/00—Upholstery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Abstract

The method involves providing a plastic material layer (4) and providing a fusible foam based back layer (5) having density lower than 0.03 dimensions. A surface of the back layer is formed with thickness ranging between 0.5 mm and 1 mm, so that the back layer is subdivided into a fused sub-layer and a cellular layer. A back face of the material layer is pressed against the fused sub-layer in order to adhere the back face with the fused sub-layer and to obtain a complex (1) in which the fused sub-layer is adhered to a compact sub-layer (7) after cooling. The plastic material layer is coated textile of plastic or a plastic sheet containing PVC. An independent claim is also included for a cushioning of a seat of a motor vehicle including a cover.

Description

L'invention concerne un procédé de réalisation d'un complexe destiné à être intégré dans une coiffe de matelassure de siège de véhicule automobile, un complexe obtenu par un tel procédé, une coiffe comprenant un tel complexe et une matelassure comprenant une telle coiffe. The invention relates to a method for producing a complex intended to be integrated in a motor vehicle seat pad, a complex obtained by such a method, a cap comprising such a complex and a padding comprising such a cap.

II est connu de mettre en oeuvre un procédé de réalisation d'un complexe destiné à être intégré dans une coiffe de matelassure de siège de véhicule automobile, ladite matelassure comprenant un bloc de rembourrage à base de mousse ûnotamment à base de polyuréthanne - surmoulant l'envers de ladite coiffe, ledit procédé comprenant les étapes de : • prévoir une couche de matériau d'aspect, • prévoir une couche d'envers à base de mousse fusible û notamment à base de polyuréthanne - de densité supérieure à 0,03, notamment comprise entre 0,035 et 0,040, • réaliser une fusion superficielle û notamment par flamme - de ladite couche d'envers sur une épaisseur très faible û par exemple de l'ordre de 0,1 mm, de sorte que ladite couche d'envers se subdivise en une sous couche fondue et une sous couche alvéolaire, • réaliser un calandrage de la face d'envers de ladite couche de matériau 20 d'aspect contre ladite sous couche fondue afin de les coller entre elles et d'obtenir ledit complexe dans lequel ladite sous couche fondue conduit après refroidissement à une sous couche compacte. It is known to implement a method for producing a complex intended to be integrated in a motor vehicle seat padding, said padding comprising a foam padding block particularly based on polyurethane - overmolding it. towards the end of said cap, said method comprising the steps of: providing a layer of appearance material; providing a backing layer based on a fusible foam, in particular based on polyurethane, having a density greater than 0.03, especially between 0.035 and 0.040, • effecting a superficial melting, in particular by flame, of said backing layer to a very small thickness, for example of the order of 0.1 mm, so that said backing layer is subdivided. in a molten underlayer and a foamed sub-layer, calendering of the backside of said layer of material of appearance against said molten sub-layer in order to glue them between and obtaining said complex in which said molten under layer conducts after cooling to a compact undercoat.

Les couches d'envers utilisées dans un tel procédé doivent présenter une haute 25 densité, dont la valeur est estimée ci-dessus, et une très bonne homogénéité, ce qui leur confère un coût élevé. Ces deux caractéristiques assurent, lors du surmoulage de l'envers de la coiffe par le bloc, une pénétration uniforme de la mousse du bloc dans la sous couche alvéolaire, et ce dans une portion d'épaisseur faible de la sous couche alvéolaire. 30 En effet, une pénétration non uniforme risque de créer des points durs préjudiciables au confort tactile de la matelassure. The backing layers used in such a process must have a high density, the value of which is estimated above, and a very good homogeneity, which gives them a high cost. These two characteristics ensure, during overmoulding of the back of the cap by the block, a uniform penetration of the block of foam in the cellular sub-layer, and in a small thickness portion of the cellular sub-layer. Indeed, a non-uniform penetration may create hard spots detrimental to the tactile comfort of the padding.

En outre, une trop grande pénétration de mousse dans l'épaisseur de la sous couche alvéolaire crée un effet de cartonnage , lui aussi préjudiciable au confort tactile. In addition, excessive penetration of foam in the thickness of the cellular sub-layer creates a cardboard effect, also detrimental to tactile comfort.

L'invention a pour but de pallier ces inconvénients. The invention aims to overcome these disadvantages.

A cet effet, et selon un premier aspect, l'invention propose un procédé de réalisation d'un complexe destiné à être intégré dans une coiffe de matelassure de siège de véhicule automobile, ladite matelassure comprenant un bloc de rembourrage à base de mousse surmoulant l'envers de ladite coiffe, ledit procédé comprenant les étapes de : • prévoir une couche de matériau d'aspect, • prévoir une couche d'envers à base de mousse fusible de densité inférieure à 0,03, • réaliser une fusion superficielle de ladite couche d'envers sur une épaisseur comprise entre 0,5 mm et 1 mm, de sorte que ladite couche d'envers se subdivise en une sous couche fondue et une sous couche alvéolaire, • réaliser un calandrage de la face d'envers de ladite couche de matériau d'aspect contre ladite sous couche fondue afin de les coller entre elles et d'obtenir ledit complexe dans lequel ladite sous couche fondue conduit après refroidissement à une sous couche compacte. For this purpose, and according to a first aspect, the invention proposes a method of producing a complex intended to be integrated in a motor vehicle seat pad, said padding comprising a foam padding block overmoulding the backside of said cap, said method comprising the steps of: providing a layer of appearance material, providing a fusible foam-based backing layer with a density of less than 0.03, performing a superficial melting of said backing layer to a thickness of between 0.5 mm and 1 mm, so that said backing layer is subdivided into a melted underlayer and a honeycomb underlayer, • calendering the backside of said backing layer; layer of material of appearance against said molten underlayer in order to stick them together and to obtain said complex in which said molten underlayer leads after cooling to a compact sub-layer.

On utilise de la sorte une couche d'envers de densité allégée. En outre, elle peut présenter, comme on l'explicite ci-après, un caractère inhomogène. Il en résulte un moindre coût. In this way, a lightened density backing layer is used. In addition, it may have, as is explained below, an inhomogeneous nature. This results in a lower cost.

La possibilité d'utiliser un tel type de mousse s'explique par la présence d'une sous couche compacte épaisse qui autorise une pénétration non uniforme de la mousse du bloc dans l'épaisseur de la sous couche alvéolaire, ceci du fait que la sous couche compacte forme une barrière relativement rigide empêchant la détection de points durs ou d'effet de cartonnage par le passager. The possibility of using such a type of foam is explained by the presence of a thick compact sub-layer which allows a non-uniform penetration of the block foam into the thickness of the cellular sub-layer, this being because the sub compact layer forms a relatively rigid barrier preventing the detection of hard spots or cardboard effect by the passenger.

Selon d'autres aspects, l'invention propose un complexe obtenu par un tel procédé, une coiffe comprenant un tel complexe et une matelassure comprenant une telle coiffe. According to other aspects, the invention proposes a complex obtained by such a method, a cap comprising such a complex and a padding comprising such a cap.

D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence à la figure jointe qui est une représentation schématique en coupe partielle d'une matelassure de siège de véhicule automobile comprenant un complexe selon l'invention. Other features and advantages of the invention will appear in the following description, with reference to the attached figure which is a schematic representation in partial section of a motor vehicle seat padding comprising a complex according to the invention.

En référence à la figure, on décrit un procédé de réalisation d'un complexe 1 destiné à être intégré dans une coiffe 2 de matelassure de siège de véhicule automobile, ladite matelassure comprenant un bloc 3 de rembourrage à base de mousse ù notamment de polyuréthanne - surmoulant l'envers de ladite coiffe, ledit procédé comprenant les étapes de : • prévoir une couche de matériau d'aspect 4, notamment à base de matériau plastique étanche tel qu'un textile enduit de plastique (TEP) ou une feuille de plastique, par exemple à base de polychlorure de vinyle (PVC), • prévoir une couche d'envers 5 à base de mousse fusible ù notamment à 20 base de polyuréthanne - de densité inférieure à 0,03, notamment de l'ordre de 0,028, • réaliser une fusion superficielle, notamment par flamme, de ladite couche d'envers sur une épaisseur comprise entre 0,5 mm et 1 mm, de sorte que ladite couche d'envers se subdivise en une sous couche fondue et 25 une sous couche alvéolaire 6, • réaliser un calandrage de la face d'envers de ladite couche de matériau d'aspect contre ladite sous couche fondue afin de les coller entre elles et d'obtenir ledit complexe dans lequel ladite sous couche fondue conduit après refroidissement à une sous couche compacte 7. 30 On décrit à présent un complexe 1 réalisé selon un tel procédé, ledit complexe comprenant une couche de matériau d'aspect 4 et une couche d'envers 5 à base de mousse flexible, ladite couche d'envers présentant à l'interface avec 5 ladite couche d'aspect une sous couche compacte 7 - issue de la sous couche fondue -, d'épaisseur comprise entre 0,5 mm et 1 mm, et une sous couche alvéolaire 6 disposée à l'opposé de ladite couche d'aspect et présentant une densité inférieure à 0,03. Referring to the figure, there is described a method for producing a complex 1 intended to be integrated in a cap 2 of motor vehicle seat padding, said padding comprising a block 3 of foam-based padding including polyurethane - overmolding the back of said cap, said method comprising the steps of: • providing a layer of material of appearance 4, in particular based on waterproof plastic material such as a textile coated with plastic (PET) or a plastic sheet, for example based on polyvinyl chloride (PVC), • provide a back layer 5 based on fusible foam, especially based on polyurethane - density less than 0.03, in particular of the order of 0.028, • performing a superficial melting, particularly by flame, of said backing layer to a thickness of between 0.5 mm and 1 mm, so that said backing layer is subdivided into a melted undercoat and an undercoat layer; voleolar 6, • calendering the backside of said layer of appearance material against said molten undercoat in order to bond them together and to obtain said complex in which said molten under layer conducts after cooling to a sub compact layer 7. A complex 1 made in such a process is now described, said complex comprising a layer of material of appearance 4 and a backing layer 5 of flexible foam, said backing layer having interface with said appearance layer a compact sub-layer 7 - derived from the molten undercoat -, of thickness between 0.5 mm and 1 mm, and a cellular sub-layer 6 disposed opposite said layer in appearance and having a density of less than 0.03.

On décrit à présent une coiffe 2 de matelassure de siège de véhicule automobile, comprenant au moins un format de complexe 1 tel que décrit ci-dessus, ledit format pouvant être associé, notamment par couture, à d'autres formats de structure analogue ou non. 10 15 On décrit à présent une matelassure de siège de véhicule automobile comprenant une coiffe 2 telle que décrite ci-dessus et un bloc 3 de mousse de rembourrage, l'envers de ladite coiffe étant surmoulé par ledit bloc, la mousse dudit bloc pénétrant au moins partiellement dans la sous couche alvéolaire 6. There is now described a motor vehicle seat cushion cover 2, comprising at least one complex format 1 as described above, said format being able to be associated, in particular by sewing, with other formats of similar structure or not. . A motor vehicle seat pad comprising a cap 2 as described above and a padding foam pad 3, the backside of said cap being overmolded by said block, the foam of said block penetrating the seat, is described. less partially in the cellular sub-layer 6.

Dans une telle matelassure, l'écart entre la sous couche compacte 7 et la mousse du bloc 3 pénétrant la sous couche alvéolaire 6 peut notamment être inférieur à 0,3 mm, ce qui peut correspondre à une pénétration quasi complète de ladite mousse du bloc dans ladite sous couche alvéolaire. 20 In such a padding, the gap between the compact sub-layer 7 and the foam of the block 3 penetrating the cellular sub-layer 6 can in particular be less than 0.3 mm, which can correspond to an almost complete penetration of said foam block in said cellular sub-layer. 20

Claims (5)

REVENDICATIONS1. Procédé de réalisation d'un complexe (1) destiné à être intégré dans une coiffe (2) de matelassure de siège de véhicule automobile, ladite matelassure comprenant un bloc (3) de rembourrage à base de mousse surmoulant l'envers de ladite coiffe, ledit procédé comprenant les étapes de : • prévoir une couche de matériau d'aspect (4), • prévoir une couche d'envers (5) à base de mousse fusible de densité inférieure à 0,03, • réaliser une fusion superficielle de ladite couche d'envers sur une épaisseur comprise entre 0,5 mm et 1 mm, de sorte que ladite couche d'envers se subdivise en une sous couche fondue et une sous couche alvéolaire (6), • réaliser un calandrage de la face d'envers de ladite couche de matériau d'aspect contre ladite sous couche fondue afin de les coller entre elles et d'obtenir ledit complexe dans lequel ladite sous couche fondue conduit après refroidissement à une sous couche compacte (7). REVENDICATIONS1. Method for producing a complex (1) intended to be integrated in a motor vehicle seat cushioning cap (2), said cushioning comprising a block (3) of foam-based padding overmolding the backside of said cap, said method comprising the steps of: • providing a layer of appearance material (4), • providing a backing layer (5) based on fusible foam with a density of less than 0.03, • performing a superficial melting of said backing layer to a thickness of between 0.5 mm and 1 mm, so that said backing layer is subdivided into a melted sub-layer and a honeycomb sub-layer (6), • calendering the face of backing said layer of appearance material against said molten undercoat in order to bond them together and to obtain said complex in which said molten undercoat conducts after cooling to a compact undercoat (7). 2. Complexe (1) réalisé selon un procédé selon la revendication 1, ledit complexe comprenant une couche de matériau d'aspect (4) et une couche d'envers (5) à base de mousse flexible, ledit complexe étant caractérisé en ce que ladite couche d'envers présente à l'interface avec ladite couche d'aspect une sous couche compacte (7), d'épaisseur comprise entre 0,5 mm et 1 mm, et une sous couche alvéolaire (6) disposée à l'opposé de ladite couche d'aspect et présentant une densité inférieure à 0,03. 2. Complex (1) produced according to a process according to claim 1, said complex comprising a layer of appearance material (4) and a backing layer (5) based on flexible foam, said complex being characterized in that said backing layer has at the interface with said appearance layer a compact sub-layer (7) with a thickness of between 0.5 mm and 1 mm, and a honeycomb sub-layer (6) arranged opposite of said appearance layer and having a density of less than 0.03. 3. Coiffe (2) de matelassure de siège de véhicule automobile, caractérisée en ce qu'elle comprend au moins un format de complexe (1) selon la revendication 2. 3. Headgear (2) of motor vehicle seat padding, characterized in that it comprises at least one complex format (1) according to claim 2. 4. Matelassure de siège de véhicule automobile comprenant une coiffe (2) selon la revendication 3 et un bloc (3) de mousse de rembourrage, caractériséeen ce que l'envers de ladite coiffe est surmoulé par ledit bloc, la mousse dudit bloc pénétrant au moins partiellement dans la sous couche alvéolaire (6). 4. Motor vehicle seat padding comprising a cap (2) according to claim 3 and a block (3) padding foam, characterized in that the back of said cap is overmolded by said block, the foam of said block penetrating the less partially in the alveolar sub-layer (6). 5. Matelassure selon la revendication 4, caractérisée en ce que l'écart entre la 5 sous couche compacte (7) et la mousse du bloc (3) pénétrant la sous couche alvéolaire (6) est inférieur à 0,3 mm. 5. Padding according to claim 4, characterized in that the gap between the compact sub-layer (7) and the foam of the block (3) penetrating the cellular sub-layer (6) is less than 0.3 mm.
FR0901820A 2009-04-14 2009-04-14 METHOD FOR PRODUCING A COMPLEX INTENDED TO BE INTEGRATED IN A MOTOR VEHICLE SEAT MATEEN Expired - Fee Related FR2944228B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11633937B2 (en) * 2016-02-17 2023-04-25 Inoac Corporation Skin foam-in-place foamed article and production method thereof

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FR2167926A5 (en) * 1972-01-13 1973-08-24 Bridgtown Ind Ltd
FR2853605A1 (en) * 2003-04-11 2004-10-15 Cera Composite covering material for automobile interior trims comprises a textile layer and a foam layer bonded together through an opaque film
EP1584440A2 (en) * 2004-03-08 2005-10-12 TS Tech Co., Ltd Method for forming a foamed product integral with a covering material
US20070100007A1 (en) * 2003-12-26 2007-05-03 Ts Tech Co., Ltd. Expansion-molded article formed integrally with surface skin for vehicle seat
FR2901200A1 (en) * 2006-05-19 2007-11-23 Faurecia Sieges Automobile Manufacturing a composite lining for vehicle seat, comprises supplying a surface covering web, heating a foam web, pressing the covering surface and the foam against one another, and applying a film on the heated foam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2167926A5 (en) * 1972-01-13 1973-08-24 Bridgtown Ind Ltd
FR2853605A1 (en) * 2003-04-11 2004-10-15 Cera Composite covering material for automobile interior trims comprises a textile layer and a foam layer bonded together through an opaque film
US20070100007A1 (en) * 2003-12-26 2007-05-03 Ts Tech Co., Ltd. Expansion-molded article formed integrally with surface skin for vehicle seat
EP1584440A2 (en) * 2004-03-08 2005-10-12 TS Tech Co., Ltd Method for forming a foamed product integral with a covering material
FR2901200A1 (en) * 2006-05-19 2007-11-23 Faurecia Sieges Automobile Manufacturing a composite lining for vehicle seat, comprises supplying a surface covering web, heating a foam web, pressing the covering surface and the foam against one another, and applying a film on the heated foam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11633937B2 (en) * 2016-02-17 2023-04-25 Inoac Corporation Skin foam-in-place foamed article and production method thereof

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