WO2009034257A2 - Trimming element for the seat of an automobile including a block of expanded polyolefin having a surface with a grained appearance - Google Patents

Trimming element for the seat of an automobile including a block of expanded polyolefin having a surface with a grained appearance Download PDF

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Publication number
WO2009034257A2
WO2009034257A2 PCT/FR2008/001004 FR2008001004W WO2009034257A2 WO 2009034257 A2 WO2009034257 A2 WO 2009034257A2 FR 2008001004 W FR2008001004 W FR 2008001004W WO 2009034257 A2 WO2009034257 A2 WO 2009034257A2
Authority
WO
WIPO (PCT)
Prior art keywords
block
element according
coating
seat
armature
Prior art date
Application number
PCT/FR2008/001004
Other languages
French (fr)
Other versions
WO2009034257A3 (en
Inventor
Xavier Bonfils
Original Assignee
Centre D'etude Et De Recherche Pour L'automobile (Cera)
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 Centre D'etude Et De Recherche Pour L'automobile (Cera) filed Critical Centre D'etude Et De Recherche Pour L'automobile (Cera)
Publication of WO2009034257A2 publication Critical patent/WO2009034257A2/en
Publication of WO2009034257A3 publication Critical patent/WO2009034257A3/en

Links

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
    • B60N2/70—Upholstery springs ; Upholstery
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B60N2/5816—Seat coverings attachments thereof
    • 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
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Definitions

  • Motor vehicle seat lining element comprising an expanded polyolefin block with a grained appearance
  • the invention relates to a motor vehicle seat lining element.
  • a motor vehicle seat lining element such as a headrest, an armrest or a frame, comprising a frame associated with a support block of flexible material, for example based on polyurethane, said block being coated with a coating such as a textile.
  • Such an embodiment has a complexity of manufacture, a high cost and recycling difficulties.
  • the invention aims to overcome these disadvantages.
  • the invention proposes a motor vehicle seat packing element comprising an armature associated with a support block of flexible material, said material being based on expanded polyolefin, the outer surface of said block comprising at least one zone. grained forming aspect face.
  • At least a portion of the outer surface of the block forms an aspect face, by graining, which avoids its covering by a coating such as a textile and facilitates the manufacture of the element, reduces costs as well as the costs. recycling difficulties related to the separation of the block coating.
  • FIG. 1 is a diagrammatic representation in longitudinal section, in a vehicle mark, of a headrest according to one embodiment
  • FIG. 2 is a schematic representation in partial section of the headrest of Figure 1 before demolding the mold used in a production method.
  • a motor vehicle seat lining element 1 here a headrest, comprising a frame 2 associated with a support block 3 made of flexible material, said material being based on expanded polyolefin, the outer surface of said block comprising at least one grained area 4 forming an aspect face.
  • the polyolefin material is polypropylene or polypropylene / polyethylene copolymer.
  • the grained zone 4 extends over the entire external surface of the block 3.
  • the grained zone 4 extends over part of the outer surface of the block 3, the complementary part being coated with a coating 5, in particular in the passenger's support zone.
  • the layer 6 is integral with the coating 5.
  • the coating 5 and / or the layer 6 is associated with the block 3 by overmolding its backside.
  • At least a portion of the peripheral edge 11 of the coating 5 enters the volume of the block 3, so as to ensure a good peripheral finish.
  • part of the armature 2 is overmolded by the block 3.
  • the block 3 can be hollowed out, in order to refine the absorption characteristics of the element 1, in particular when it is a headrest having to meet specific energy absorption characteristics. shock case of the passenger's head.
  • the armature 2 is formed of a U-shaped bent rod (seen in profile in FIG. 1), the branches 7 of the U protruding at the bottom of the block 3, so that the element 1 forms a headrest seat.
  • the frame 2 may comprise a fixing means, so as to be associated with a reciprocal means provided on the seat structure, so that the element 1 form armrest or seat frame.
  • the mold 8 comprises at least one, here two, lamella 10 projecting into the molding cavity, a coating 5 being disposed, before introduction of the granules, against a portion of the wall of the mold, at least a portion of its peripheral edge 1 1 being disposed against a face of said lamella, so that said coating is overmolded, at least in part, by the granules once expanded and that said peripheral edge portion enters the volume of the block 3.
  • a layer of flexible material 6 is disposed upside down of the coating 5, the block 3 overmolding said layer and the edge of the coating 3.

Abstract

The invention relates to a trimming element (1) for the seat of an automobile that comprises a structure (2) associated with a bearing block (3) made of flexible material, wherein said material comprises expanded polyolefin, the outer surface of the block including at least one grained area (4) defining a surface with a certain appearance.

Description

Elément de garnissage de siège de véhicule automobile comprenant un bloc en polyoléfine expansée à face d'aspect grainée Motor vehicle seat lining element comprising an expanded polyolefin block with a grained appearance
L'invention concerne un élément de garnissage de siège de véhicule automobile.The invention relates to a motor vehicle seat lining element.
Il est connu de réaliser un élément de garnissage de siège de véhicule automobile tel que un appui-tête, un accoudoir ou un dormant, comprenant une armature associée à un bloc d'appui en matériau souple, par exemple à base de polyuréthanne, ledit bloc étant revêtu d'un revêtement tel qu'un textile.It is known to produce a motor vehicle seat lining element such as a headrest, an armrest or a frame, comprising a frame associated with a support block of flexible material, for example based on polyurethane, said block being coated with a coating such as a textile.
Une telle réalisation présente une complexité de fabrication, un coût élevé et des difficultés de recyclage.Such an embodiment has a complexity of manufacture, a high cost and recycling difficulties.
L'invention a pour but de pallier ces inconvénients.The invention aims to overcome these disadvantages.
A cet effet, l'invention propose un élément de garnissage de siège de véhicule automobile comprenant une armature associée à un bloc d'appui en matériau souple, ledit matériau étant à base de polyoléfine expansée, la surface externe dudit bloc comprenant au moins une zone grainée formant face d'aspect.For this purpose, the invention proposes a motor vehicle seat packing element comprising an armature associated with a support block of flexible material, said material being based on expanded polyolefin, the outer surface of said block comprising at least one zone. grained forming aspect face.
Ainsi, au moins une partie de la surface externe du bloc forme face d'aspect, moyennant un grainage, ce qui évite son recouvrement par un revêtement tel qu'un textile et facilite la fabrication de l'élément, diminue les coûts ainsi que les difficultés de recyclage liées à la séparation du revêtement du bloc.Thus, at least a portion of the outer surface of the block forms an aspect face, by graining, which avoids its covering by a coating such as a textile and facilitates the manufacture of the element, reduces costs as well as the costs. recycling difficulties related to the separation of the block coating.
D'autres aspects et avantages de l'invention sont décrits en relation avec les figures jointes dans lesquelles :Other aspects and advantages of the invention are described in relation to the attached figures in which:
• La figure 1 est une représentation schématique en coupe longitudinale, en repère véhicule, d'un appui-tête selon une réalisation,FIG. 1 is a diagrammatic representation in longitudinal section, in a vehicle mark, of a headrest according to one embodiment;
• La figure 2 est une représentation schématique en coupe partielle de l'appui-tête de la figure 1 avant démoulage du moule utilisé dans un procédé de réalisation. En référence aux figures, on décrit un élément 1 de garnissage de siège de véhicule automobile, ici un appui-tête, comprenant une armature 2 associée à un bloc 3 d'appui en matériau souple, ledit matériau étant à base de polyoléfine expansée, la surface externe dudit bloc comprenant au moins une zone grainée 4 formant face d'aspect.• Figure 2 is a schematic representation in partial section of the headrest of Figure 1 before demolding the mold used in a production method. With reference to the figures, there is described a motor vehicle seat lining element 1, here a headrest, comprising a frame 2 associated with a support block 3 made of flexible material, said material being based on expanded polyolefin, the outer surface of said block comprising at least one grained area 4 forming an aspect face.
Le fait que le matériau soit expansé lui confère une certaine souplesse, telle que recherchée pour un élément de garnissage de siège.The fact that the material is expanded gives it some flexibility, as desired for a seat upholstery element.
Selon une réalisation, le matériau à base de polyoléfine est un polypropylène ou un copolymère polypropylène/polyéthylène.In one embodiment, the polyolefin material is polypropylene or polypropylene / polyethylene copolymer.
Selon une réalisation non représentée, la zone grainée 4 s'étend sur toute la surface externe du bloc 3.According to an embodiment not shown, the grained zone 4 extends over the entire external surface of the block 3.
Selon la réalisation représentée, la zone grainée 4 s'étend sur une partie de la surface externe du bloc 3, la partie complémentaire étant revêtue d'un revêtement 5, notamment en zone d'appui du passager.According to the embodiment shown, the grained zone 4 extends over part of the outer surface of the block 3, the complementary part being coated with a coating 5, in particular in the passenger's support zone.
Pour améliorer le confort d'approche, une couche de matériau souple 6, tel qu'une mousse, est disposée entre le bloc 3 et le revêtement 5. Selon une réalisation, la couche 6 est solidaire du revêtement 5.To improve the comfort of approach, a layer of flexible material 6, such as a foam, is disposed between the block 3 and the coating 5. In one embodiment, the layer 6 is integral with the coating 5.
Selon une réalisation, le revêtement 5 et/ou la couche 6 est associé au bloc 3 par surmoulage de sa face d'envers.According to one embodiment, the coating 5 and / or the layer 6 is associated with the block 3 by overmolding its backside.
Selon la réalisation représentée, au moins une partie de la bordure périphérique 11 du revêtement 5 pénètre dans le volume du bloc 3, de sorte à assurer une bonne finition périphérique. On verra par la suite un procédé permettant de réaliser un tel agencement.According to the embodiment shown, at least a portion of the peripheral edge 11 of the coating 5 enters the volume of the block 3, so as to ensure a good peripheral finish. We will see later a method for performing such an arrangement.
Selon une réalisation, une partie de l'armature 2 est surmoulée par le bloc 3. De façon non représentée, le bloc 3 peut être évidé, ceci afin d'affiner les caractéristiques d'absorption de l'élément 1 , notamment lorsqu'il est un appui- tête devant répondre à des caractéristiques spécifiques d'absorption d'énergie en cas de choc de la tête du passager.According to one embodiment, part of the armature 2 is overmolded by the block 3. In a manner not shown, the block 3 can be hollowed out, in order to refine the absorption characteristics of the element 1, in particular when it is a headrest having to meet specific energy absorption characteristics. shock case of the passenger's head.
Selon une réalisation, l'armature 2 est formée d'une tige coudée en U (vue de profil sur la figure 1), les branches 7 du U saillant en bas du bloc 3, de sorte que l'élément 1 forme appui-tête de siège.According to one embodiment, the armature 2 is formed of a U-shaped bent rod (seen in profile in FIG. 1), the branches 7 of the U protruding at the bottom of the block 3, so that the element 1 forms a headrest seat.
De façon non représentée, l'armature 2 peut comprendre un moyen de fixation, de sorte à pouvoir être associée à un moyen réciproque prévu sur la structure de siège, afin que I' élément 1 forme accoudoir ou dormant de siège.In a manner not shown, the frame 2 may comprise a fixing means, so as to be associated with a reciprocal means provided on the seat structure, so that the element 1 form armrest or seat frame.
On décrit à présent, en référence à la figure 2, un procédé de réalisation d'un élément 1 selon comprenant les étapes de :With reference to FIG. 2, a method of producing an element 1 according to the steps of:
• prévoir un moule 8 de géométrie correspondant à celle de l'élément 1 à obtenir, ledit moule étant pourvu d'un grainage 9 sur au moins une partie de sa paroi interne, • disposer une partie d'une armature, non représentée, dans la cavité de moulage,• provide a mold 8 of geometry corresponding to that of the element 1 to obtain, said mold being provided with a graining 9 on at least a portion of its inner wall, • arrange a portion of a frame, not shown, in the molding cavity,
• introduire dans le moule des granulés de polyoléfine expansibles,• introducing into the mold expandable polyolefin granules,
• injecter de la vapeur dans le moule, à température permettant une expansion des granulés et une adhésion des granulés entre eux, de sorte à former un bloc 3,Injecting steam into the mold, at a temperature permitting expansion of the granules and adhesion of the granules together, so as to form a block 3,
• démouler l'élément 1 obtenu, une partie de ladite armature étant surmoulée par ledit bloc.Demolding the element 1 obtained, a portion of said armature being overmolded by said block.
Selon la réalisation représentée, le moule 8 comprend au moins une, ici deux, lamelle 10 saillant dans la cavité de moulage, un revêtement 5 étant disposé, avant introduction des granulés, contre une partie de la paroi du moule, au moins une partie de sa bordure périphérique 1 1 étant disposée contre une face de ladite lamelle, de sorte que ledit revêtement soit surmoulé, au moins en partie, par les granulés une fois expansés et que ladite partie de bordure périphérique pénètre dans le volume du bloc 3.According to the embodiment shown, the mold 8 comprises at least one, here two, lamella 10 projecting into the molding cavity, a coating 5 being disposed, before introduction of the granules, against a portion of the wall of the mold, at least a portion of its peripheral edge 1 1 being disposed against a face of said lamella, so that said coating is overmolded, at least in part, by the granules once expanded and that said peripheral edge portion enters the volume of the block 3.
Dans la réalisation représentée, une couche de matériau souple 6 est disposée en envers du revêtement 5, le bloc 3 surmoulant ladite couche et le bord du revêtement 3. In the embodiment shown, a layer of flexible material 6 is disposed upside down of the coating 5, the block 3 overmolding said layer and the edge of the coating 3.

Claims

REVENDICATIONS
1. Elément (1) de garnissage de siège de véhicule automobile comprenant une armature (2) associée à un bloc (3) d'appui en matériau souple, ledit élément étant caractérisé en ce que ledit matériau est à base de polyoléfine expansée, la surface externe dudit bloc comprenant au moins une zone grainée (4) formant face d'aspect.Motor vehicle seat packing element (1) comprising an armature (2) associated with a support block (3) made of flexible material, said element being characterized in that said material is based on expanded polyolefin, the outer surface of said block comprising at least one grained area (4) forming an aspect face.
2. Elément selon la revendication 1 , caractérisé en ce que le matériau à base de polyoléfine est un polypropylène ou un copolymère polypropylène/polyéthylène.2. Element according to claim 1, characterized in that the polyolefin material is a polypropylene or a polypropylene / polyethylene copolymer.
3. Elément selon la revendication 1 ou 2, caractérisé en ce que la zone grainée (4) s'étend sur toute la surface externe du bloc (3).3. Element according to claim 1 or 2, characterized in that the grained area (4) extends over the entire outer surface of the block (3).
4. Elément selon la revendication 1 ou 2, caractérisé en ce que la zone grainée (4) s'étend sur une partie de la surface externe du bloc, la partie complémentaire étant revêtue d'un revêtement (5).4. Element according to claim 1 or 2, characterized in that the grained area (4) extends over a portion of the outer surface of the block, the complementary portion being coated with a coating (5).
5. Elément selon la revendication 4, caractérisé en ce qu'une couche de matériau souple (6) est disposée entre le bloc (3) et le revêtement (5).5. Element according to claim 4, characterized in that a layer of flexible material (6) is disposed between the block (3) and the coating (5).
6. Elément selon la revendication 4 ou 5, caractérisé en ce que le revêtement et/ou la couche (6) est associé au bloc (3) par surmoulage de sa face d'envers.6. Element according to claim 4 or 5, characterized in that the coating and / or the layer (6) is associated with the block (3) by overmoulding of its back side.
7. Elément selon l'une quelconque des revendications 4 à 6, caractérisé en ce qu'au moins une partie de la bordure périphérique (11) du revêtement (5) pénètre dans le volume du bloc (3).7. Element according to any one of claims 4 to 6, characterized in that at least a portion of the peripheral edge (11) of the coating (5) enters the volume of the block (3).
8. Elément selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'une partie de l'armature (2) est surmoulée par le bloc (3). 8. Element according to any one of claims 1 to 7, characterized in that a portion of the armature (2) is overmolded by the block (3).
9. Elément selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'armature (2) est formée d'une tige coudée en U, les branches du U saillant en bas du bloc (3), de sorte que ledit élément forme appui-tête de siège.9. Element according to any one of claims 1 to 8, characterized in that the armature (2) is formed of a U-shaped bent rod, the branches of the U salient at the bottom of the block (3), so that said element forms a seat headrest.
10. Elément selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'armature (2) comprend un moyen de fixation, de sorte à pouvoir être associée à un moyen réciproque prévu sur la structure de siège, afin que ledit élément forme accoudoir ou dormant de siège. 10. Element according to any one of claims 1 to 8, characterized in that the armature (2) comprises a fixing means, so as to be associated with a reciprocal means provided on the seat structure, so that said Armrest element or seat frame.
PCT/FR2008/001004 2007-07-25 2008-07-09 Trimming element for the seat of an automobile including a block of expanded polyolefin having a surface with a grained appearance WO2009034257A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0705441A FR2919238B1 (en) 2007-07-25 2007-07-25 MOTOR VEHICLE SEAT TRIM COMPONENT COMPRISING AN EXPANDED POLYOLEFIN BLOCK IN SEPARATE ASPECT.
FR0705441 2007-07-25

Publications (2)

Publication Number Publication Date
WO2009034257A2 true WO2009034257A2 (en) 2009-03-19
WO2009034257A3 WO2009034257A3 (en) 2010-02-25

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PCT/FR2008/001004 WO2009034257A2 (en) 2007-07-25 2008-07-09 Trimming element for the seat of an automobile including a block of expanded polyolefin having a surface with a grained appearance

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FR (1) FR2919238B1 (en)
WO (1) WO2009034257A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037314A1 (en) * 2009-07-01 2011-01-05 Aksys Gmbh vehicle seat
CN116438046A (en) * 2020-11-17 2023-07-14 巴斯夫欧洲公司 Composite article comprising structured porous body and foam and method of producing structured porous body and particulate foam

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444303B1 (en) * 1999-11-01 2002-09-03 Lear Corporation Fabric-less part and method of making same
WO2007115396A1 (en) * 2006-04-10 2007-10-18 Custom Foam Systems Ltd. Thin-skinned furniture component and method and apparatus for production thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444303B1 (en) * 1999-11-01 2002-09-03 Lear Corporation Fabric-less part and method of making same
WO2007115396A1 (en) * 2006-04-10 2007-10-18 Custom Foam Systems Ltd. Thin-skinned furniture component and method and apparatus for production thereof

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Publication number Publication date
FR2919238A1 (en) 2009-01-30
FR2919238B1 (en) 2009-10-23
WO2009034257A3 (en) 2010-02-25

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