MA61855B1 - Siège pour véhicule - Google Patents

Siège pour véhicule

Info

Publication number
MA61855B1
MA61855B1 MA61855A MA61855A MA61855B1 MA 61855 B1 MA61855 B1 MA 61855B1 MA 61855 A MA61855 A MA 61855A MA 61855 A MA61855 A MA 61855A MA 61855 B1 MA61855 B1 MA 61855B1
Authority
MA
Morocco
Prior art keywords
viscoelastic foam
outer portion
vehicle seat
foam
seat
Prior art date
Application number
MA61855A
Other languages
English (en)
Inventor
Massimo GILARDI
Stefano Grassini
Original Assignee
Toscana Gomma S.P.A.
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 Toscana Gomma S.P.A. filed Critical Toscana Gomma S.P.A.
Publication of MA61855B1 publication Critical patent/MA61855B1/fr

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
    • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un siège (1) pour un véhicule, comprenant au moins un composant (2) comprenant au moins une partie externe (3) faisant face à un utilisateur, où la partie externe (3) comprend une mousse viscoélastique de type pneumatique, la mousse viscoélastique étant une mousse de polyuréthane thermodurcissable flexible fabriquée avec des réactifs comprenant au moins un polyol et un composé comprenant des groupes fonctionnels isocyanate et où la variation de portance dans la mousse viscoélastique, calculée dans un cycle de déformation de 0 % à 65 % induit par un état de contraintes de compression, ne dépasse pas 0,7 kPa, lorsqu'elle est mesurée dans une plage de température comprise entre -10°C et +40°C.
MA61855A 2020-10-06 2021-09-27 Siège pour véhicule MA61855B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT202000023542 2020-10-06
EP21791462.1A EP4225550B1 (fr) 2020-10-06 2021-09-27 Siège pour véhicule
PCT/IB2021/058770 WO2022074500A1 (fr) 2020-10-06 2021-09-27 Siège pour véhicule et sa méthode de fabrication

Publications (1)

Publication Number Publication Date
MA61855B1 true MA61855B1 (fr) 2025-05-30

Family

ID=73793742

Family Applications (1)

Application Number Title Priority Date Filing Date
MA61855A MA61855B1 (fr) 2020-10-06 2021-09-27 Siège pour véhicule

Country Status (4)

Country Link
EP (1) EP4225550B1 (fr)
ES (1) ES3026740T3 (fr)
MA (1) MA61855B1 (fr)
WO (1) WO2022074500A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6391935B1 (en) 2000-01-31 2002-05-21 Bayer Antwerp, N.V. Viscoelastic polyurethane foams
EP1456269B1 (fr) * 2001-11-29 2016-07-20 Huntsman International Llc Polyurethannes viscoelastiques
FR2841508B1 (fr) * 2002-06-26 2005-01-14 Cera Element de garnissage pourvu d'un insert viscoelastique
FR2841507A1 (fr) * 2002-06-26 2004-01-02 Cera Procede de realisation d'un element de garnissage pourvu d'un element viscoelastique
EP2185617B1 (fr) * 2007-08-27 2016-03-16 Dow Global Technologies LLC Catalyse de mousses visco-élastiques par des sels de bismuth.
WO2014079792A1 (fr) * 2012-11-23 2014-05-30 Bayer Materialscience Ag Procédé de préparation de mousses souples en polyuréthane flexible permettant un grand confort et de faibles pertes par hystérésis
DE102014209846A1 (de) * 2013-12-20 2015-06-25 Johnson Controls Gmbh Schaumteil für eine Fahrzeugsitz und Fahrzeugsitz
RU2017124182A (ru) * 2014-12-10 2019-01-10 Ковестро Дойчланд Аг Способ получения вязкоупругих пенополиуретанов
US12458150B2 (en) 2019-07-19 2025-11-04 Evonik Operations Gmbh Shaped PU foam articles

Also Published As

Publication number Publication date
EP4225550A1 (fr) 2023-08-16
WO2022074500A1 (fr) 2022-04-14
EP4225550B1 (fr) 2025-02-26
ES3026740T3 (en) 2025-06-12

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