EP3490771A1 - Procédé de réalisation d'une matelassure de siège de véhicule automobile - Google Patents
Procédé de réalisation d'une matelassure de siège de véhicule automobileInfo
- Publication number
- EP3490771A1 EP3490771A1 EP17754190.1A EP17754190A EP3490771A1 EP 3490771 A1 EP3490771 A1 EP 3490771A1 EP 17754190 A EP17754190 A EP 17754190A EP 3490771 A1 EP3490771 A1 EP 3490771A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foam
- film
- block
- padding
- underlayer
- 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.)
- Withdrawn
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
- B29C44/1261—Avoiding impregnation of a preformed part
-
- 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
- B29C44/1285—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being foamed
-
- 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
- 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
- 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
Definitions
- the invention relates to a method for producing a seat pad of a motor vehicle, a padding made by such a method and a motor vehicle seat provided with such padding.
- a cap comprising a first yoke, said yoke comprising a layer of coating material and an elastically compressible foam underlayer, in particular based on polyurethane,
- thermoplastic film Disposing on said underlayer a thermoplastic film,
- said film After expansion of the foam, demolding the padding obtained, said film having physicochemical properties arranged so that it gradually degrades under the action of the heat released during the formation of the foam of said block, to allow overmolding said underlayer by said block by limiting the penetration of the foam of said block into the thickness of said underlayer.
- a padding is made whose cap is secured, through the first yoke, the padding block, which avoids having to use return means as conventionally used in the case of mounted caps by putting on a block.
- the presence of the film makes it possible to limit the formation of waterproof crust due to the penetration of the foam of the block in a fraction of the thickness of the underlayer, which makes it possible to have a cushioning having a certain hygrothermal comfort related to the porosity of the residual crust.
- the object of the invention is to propose a method that makes it possible to solve this technical problem, so as to obtain a padding with optimum hygrothermal comfort.
- the invention provides a method for producing a motor vehicle seat pad, said method comprising the following steps:
- a cap comprising a first yoke, said yoke comprising a layer of coating material and an elastically compressible foam underlayer,
- thermoplastic film Disposing on said underlayer a thermoplastic film,
- Said film is based on polyurethane
- Its melting point is between 40 and 60 ° C
- Its melt flow index measured according to standard NF T 51 -016, at 190 ° C. with a forced flow capillary rheometer whose piston is loaded with a mass of 2.180 kg, is greater than 15 g / 10 min, so that said film is degraded under the action of the heat generated during the formation of the foam of said block, in order to allow overmoulding of said underlayer by said block substantially without penetration of the foam of said block into the thickness of said sub-layer.
- the essential parameters were, on the one hand, the melting temperature and, on the other hand, the fluidity of the film in the molten state.
- the Applicant has notably observed that a film having a melt in the molten state can not degrade so as to lose its seal.
- the padding can not, under these conditions, be provided with the expected hygrothermal comfort characteristics.
- the invention proposes a padding made by such a method and a motor vehicle seat comprising such padding.
- FIG. 1 is a schematic partial sectional view of a padding during manufacture, the precursor mixture of foam that has just been injected into the cap,
- FIG. 2 is a schematic partial sectional view, according to one embodiment, of the padding of FIG. 1 once made.
- a cap 2 comprising a first yoke 3, said yoke comprising a layer of coating material 4 and a sub-layer 5 of elastically compressible foam,
- thermoplastic film Disposing on said underlayer a thermoplastic film,
- Said film is based on polyurethane
- melt flow index measured according to standard NF T 51-016 at 190 ° C. with a forced flow capillary rheometer whose piston is loaded with a mass of 2.180 kg, is greater than 15 g / 10 min, whereby said film degrades under the action of the heat generated during the formation of the foam of said block, in order to allow overmolding of said underlayer by said block substantially without penetration of the foam of said block in the thickness of said underlayer.
- the melt flow index of the film 10 measured according to standard NF T 51 -016 at 190 ° C. with a forced flow capillary rheomere whose piston is loaded with a mass of 2.180 kg, is less than 50 g / 10 min.
- the melt index of the film 10 measured according to standard NF T 51 -016 at 190 ° C with a forced flow capillary rheometer whose piston is loaded with a mass of 2.160 kg, is equal to 25 ⁇ 3 g / 10 min.
- the film 10 has a thickness of 15 ⁇ 3 microns, and in particular a thickness of 15 ⁇ 1 microns.
- the density of the film 10 is 1.20 ⁇ 0.05.
- the film 10 exhibits in scanning differential scanning calorimetry (DSC), performed according to the ISO 1,1357 standard, a melting peak located at 49 ⁇ 2 ° C.
- the polyol used to make the film 10 is based on polyester.
- the isocyanate used to make the film comprises an aromatic group.
- the underlayer 5 of foam is based on polyurethane. According to one embodiment, the underlayer 5 of foam has a density of 0.028 ⁇ 0.002, which usually corresponds to a poor quality of foam used for caps 2 associated with a block 12 of padding by footwear and not overmoulding of said cap by said block.
- the underlayer 5 of foam has a thickness between 1, 5 and 2 mm.
- the underlayer 5 of foam is provided on its outer face with a protective web 13, in particular in rectilinear or circular mesh.
- the cap 2 comprises a second yoke, not shown, associated edge to edge, in particular by stitching, at the first yoke 3, said second yoke being not overmolded by the block 12 padding.
- the second yoke is situated in the lateral portion of the padding 1, its disassociation of the block 12 padding allowing a better resistance of said block facing bending it undergoes at the entrances / exits of passengers in / out of the vehicle.
- the foam of the block 12 has a different density depending on whether it is located facing the first 3 or second yoke, said foam having in particular an increased density of side portions of the padding 1, so as to allow lateral retention passenger farm.
- a padding 1 for a motor vehicle seat made by such a method comprising: A cap 2 comprising a first yoke 3, said yoke comprising a layer of coating material 4 and a sub-layer 5 of elastically compressible foam, especially based on polyurethane,
- a block 12 of elastically compressible foam padding said block overmolding said yoke leaving said underlayer substantially free of foam in its thickness.
- a motor vehicle seat comprising such a padding 1, said padding being associated, by the periphery of the cap 2, to a frame of said seat.
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1657175A FR3054472B1 (fr) | 2016-07-26 | 2016-07-26 | Procede de realisation d’une matelassure de siege de vehicule automobile |
PCT/FR2017/052076 WO2018020149A1 (fr) | 2016-07-26 | 2017-07-25 | Procédé de réalisation d'une matelassure de siège de véhicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3490771A1 true EP3490771A1 (fr) | 2019-06-05 |
Family
ID=57137116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17754190.1A Withdrawn EP3490771A1 (fr) | 2016-07-26 | 2017-07-25 | Procédé de réalisation d'une matelassure de siège de véhicule automobile |
Country Status (6)
Country | Link |
---|---|
US (1) | US20190270226A1 (fr) |
EP (1) | EP3490771A1 (fr) |
JP (1) | JP7046911B2 (fr) |
CN (1) | CN110035877A (fr) |
FR (1) | FR3054472B1 (fr) |
WO (1) | WO2018020149A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3088845B1 (fr) | 2018-11-26 | 2022-04-01 | Tesca France | Procédé de réalisation d’une matelassure de siège de véhicule automobile |
CN109940811B (zh) * | 2019-03-15 | 2022-04-05 | 怡丰运动科技(深圳)有限公司 | 一种etpu座垫的制备工艺 |
FR3114262B1 (fr) | 2020-09-24 | 2022-09-09 | Tesca France | Procédé de réalisation d’une matelassure de siège de véhicule automobile |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2663880B1 (fr) * | 1990-06-29 | 1994-04-29 | Roth Sa Freres | Procede de fabrication de matelassures en mousse de polyurethane coulee in situ dans une coiffe en textile et coussin ainsi obtenu. |
DE59202134D1 (de) * | 1991-08-06 | 1995-06-14 | Atochem Elf Deutschland | Verwendung von Folien aus Polyurethanen zum Verkleben. |
US5468434A (en) * | 1994-03-01 | 1995-11-21 | Atoma International Inc. | Provision of cover impermeability in mold in place seat component method |
DE19942393C2 (de) * | 1999-07-15 | 2002-07-18 | Bayer Ag | Weiche, elastische Polyurethanfolien, Verfahren zu ihrer Herstellung und ihre Verwendung |
US20040259448A1 (en) * | 2003-06-19 | 2004-12-23 | Nahmias Alan Michael | Textile laminates |
DE102006013310B4 (de) * | 2005-10-07 | 2011-05-12 | W.E.T. Automotive Systems Ag | Abdeckelement für Fahrzeuginterieur-Bauteile |
JP4247916B2 (ja) | 2006-07-31 | 2009-04-02 | 株式会社日立製作所 | マイクロ波浸炭炉及び浸炭方法 |
JP5563821B2 (ja) * | 2007-08-21 | 2014-07-30 | 旭化成せんい株式会社 | 熱可塑性ポリウレタンテープ |
CN104105585A (zh) * | 2011-08-26 | 2014-10-15 | 约翰逊内控两合公司 | 特别用于车辆内部空间的内饰件和制造方法 |
AU2013290502B2 (en) * | 2012-07-16 | 2017-02-23 | Hanwha Azdel, Inc. | Articles including high melt flow index resins |
FR3022484A1 (fr) * | 2014-06-18 | 2015-12-25 | Cera | Procede de realisation d’une matelassure de siege de vehicule automobile |
CN104149258A (zh) * | 2014-07-04 | 2014-11-19 | 福州大学 | 一种微孔发泡与模内覆膜的集成工艺 |
JP6409506B2 (ja) * | 2014-09-01 | 2018-10-24 | 東洋紡株式会社 | 発泡成形品補強用不織布 |
CN105199370A (zh) * | 2015-10-29 | 2015-12-30 | 无锡市嘉邦电力管道厂 | 一种可温控变色的tpu薄膜及其制备方法和应用 |
-
2016
- 2016-07-26 FR FR1657175A patent/FR3054472B1/fr active Active
-
2017
- 2017-07-25 CN CN201780054516.6A patent/CN110035877A/zh active Pending
- 2017-07-25 WO PCT/FR2017/052076 patent/WO2018020149A1/fr unknown
- 2017-07-25 EP EP17754190.1A patent/EP3490771A1/fr not_active Withdrawn
- 2017-07-25 JP JP2019504958A patent/JP7046911B2/ja active Active
- 2017-07-25 US US16/319,889 patent/US20190270226A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
FR3054472A1 (fr) | 2018-02-02 |
CN110035877A (zh) | 2019-07-19 |
JP2019527640A (ja) | 2019-10-03 |
US20190270226A1 (en) | 2019-09-05 |
FR3054472B1 (fr) | 2019-07-19 |
WO2018020149A1 (fr) | 2018-02-01 |
JP7046911B2 (ja) | 2022-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018020149A1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile | |
EP3887119B1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile | |
FR3070899B1 (fr) | Panneau de garnissage interieur de vehicule automobile | |
FR2935290A1 (fr) | Procede pour realiser un coussin de siege de vehicule. | |
EP3381639A1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile | |
FR3071185A1 (fr) | Procede de fabrication d'une matelassure de siege automobile | |
FR3071203B1 (fr) | Matelassure de siege de vehicule automobile | |
EP3395531A1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile | |
EP3299214B1 (fr) | Composant de siège de véhicule automobile | |
EP3292973B1 (fr) | Réalisation d'une garniture en mousse pour élément de siège pour véhicule automobile | |
EP3401073B1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile, matelassure et siège de vehicule automobile | |
EP3484746B1 (fr) | Procédé de réalisation d'une matelassure de siège de véhicule automobile | |
FR3112503A1 (fr) | Procédé de réalisation d’une matelassure de siège de véhicule automobile | |
FR2930206A1 (fr) | Procede de realisation et element de garnissage comprenant un film etanche en envers de la couche de revetement | |
FR2941885A1 (fr) | Procede de realisation d'une matelassure de vehicule automobile | |
EP2865506B1 (fr) | Composant de véhicule automobile à base de matériau thermoplastique moulé | |
FR3022484A1 (fr) | Procede de realisation d’une matelassure de siege de vehicule automobile | |
WO2019012225A1 (fr) | Procédé de réalisation d'un bloc de rembourrage d'une matelassure de siège de véhicule automobile | |
FR2919238A1 (fr) | Element de garnissage de siege de vehicule automobile comprenant un bloc en polyolefine expansee a face d'aspect grainee. | |
FR3105063A1 (fr) | Procédé de réalisation d’un coussin pour élément de siège de véhicule automobile | |
FR2944228A1 (fr) | Procede de realisation d'un complexe destine a etre integre dans une coiffe de matelassure de siege de vehicule automobile | |
FR2896199A1 (fr) | Composant de garnissage de vehicule automobile comprenant deux coques associees par un rebord surmoule de mousse souple | |
FR3127430A1 (fr) | Procédé de réalisation d’un appui-tête de siège de véhicule automobile | |
FR3069818A1 (fr) | Matelassure de siege de vehicule automobile | |
FR2918308A1 (fr) | Procede de realisation d'une piece de garnissage prevoyant le surmoulage d'une feuille sans la thermoformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190219 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220126 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20220608 |