FR2813774A1 - Seat component includes synthetic foam padding and cover with flexible edge having thermoplastic material welded to thermoplastic material on face of another part - Google Patents

Seat component includes synthetic foam padding and cover with flexible edge having thermoplastic material welded to thermoplastic material on face of another part Download PDF

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Publication number
FR2813774A1
FR2813774A1 FR0011578A FR0011578A FR2813774A1 FR 2813774 A1 FR2813774 A1 FR 2813774A1 FR 0011578 A FR0011578 A FR 0011578A FR 0011578 A FR0011578 A FR 0011578A FR 2813774 A1 FR2813774 A1 FR 2813774A1
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FR
France
Prior art keywords
cap
edge
cover
thermoplastic
edges
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.)
Granted
Application number
FR0011578A
Other languages
French (fr)
Other versions
FR2813774B1 (en
Inventor
Herve Rancon
Helene Houivet
Pablo Mosquera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Faurecia Sieges dAutomobile SAS
Original Assignee
Bertrand Faure Equipements SA
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 Bertrand Faure Equipements SA filed Critical Bertrand Faure Equipements SA
Priority to FR0011578A priority Critical patent/FR2813774B1/en
Publication of FR2813774A1 publication Critical patent/FR2813774A1/en
Application granted granted Critical
Publication of FR2813774B1 publication Critical patent/FR2813774B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B29C66/1352—Single hem to hem joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/436—Joining sheets for making articles comprising cushioning or padding materials, the weld being performed through the cushioning material, e.g. car seats
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7292—Textile or other fibrous material made from plastics coated
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B60N2/5866—Seat coverings attachments thereof by thermal welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29L2031/751—Mattresses, cushions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

A seat component includes a cover around a synthetic foam padding. The cover has a flexible part with an edge (11) welded to a face of a second part. The face and the edge each have synthetic thermoplastic material for forming the weld. An Independent claim is also included for a process for making the seat component comprising: (1) heating the two thermoplastic materials simultaneously to their melting point; and (2) bringing them together.

Description

<Desc/Clms Page number 1>
ELEMENT DE SIEGE COMPRENANT UNE COIFFE D'HABILLAGE ET PROCEDE DE FABRICATION D'UNE COIFFE D'HABILLAGE POUR UN TEL ELEMENT DE SIEGE La présente invention se rapporte aux éléments de siège comprenant une coiffe d'habillage et à un procédé de fabrication d'une coiffe d'habillage pour de tels éléments de siège. <Desc / Clms Page number 1>
The present invention relates to seat elements comprising a covering cap and to a method for manufacturing a seat element. covering cap for such seat elements.

Plus particulièrement, l'invention concerne un élément de siège comportant une matelassure en mousse synthétique recouverte par une coiffe d'habillage, ladite coiffe présentant une face externe et une face interne au contact de la mousse. More particularly, the invention relates to a seat element comprising a padding of synthetic foam covered by a covering cap, said cap having an external face and an internal face in contact with the foam.

Dans les éléments de siège connus de ce type, la coiffe d'habillage comporte de manière classique deux bords adjacents qui sont assemblés par une couture. Cette couture comprend au moins un fil qui traverse les deux bords adjacents en ménageant des trous dans ces bords. Dès lors, les trous de couture qui sont provoqués par le passage d'une aiguille et du fil de couture, ont tendance à s'élargir avec la tension exercée par la tension dudit fil, ce qui ne permet pas de rendre parfaitement étanche la jonction entre les bords adjacents de la coiffe. Par ailleurs, le fait de réaliser une couture sur la coiffe implique nécessairement de relier deux parties souples de la coiffe à travers lesquelles l'aiguille de couture est susceptible de passer, en interdisant par conséquent de relier par exemple un bord de la coiffe à un organe rigide. In known seat elements of this type, the covering cap conventionally comprises two adjacent edges which are joined by a seam. This seam comprises at least one thread which crosses the two adjacent edges, leaving holes in these edges. Consequently, the sewing holes which are caused by the passage of a needle and of the sewing thread, tend to widen with the tension exerted by the tension of said thread, which does not make it possible to make the junction perfectly sealed. between the adjacent edges of the cap. Furthermore, the fact of making a seam on the cap necessarily involves connecting two flexible parts of the cap through which the sewing needle is liable to pass, consequently prohibiting for example connecting an edge of the cap to a rigid organ.

La présente invention a notamment pour but de pallier ces inconvénients. The present invention aims in particular to overcome these drawbacks.

A cet effet, l'invention a pour objet un élément de siège comportant une matelassure en mousse synthétique recouverte par une coiffe d'habillage, cette coiffe présentant une face externe et une face interne au contact de la mousse, ladite coiffe comprenant une première partie To this end, the subject of the invention is a seat element comprising a padding made of synthetic foam covered by a covering cap, this cap having an external face and an internal face in contact with the foam, said cap comprising a first part.

<Desc/Clms Page number 2><Desc / Clms Page number 2>

souple qui comporte un premier bord et une deuxième partie fixée sur ledit premier bord, caractérisé en ce que la deuxième partie de la coiffe comprend, sur sa face en contact avec le premier bord, une matière synthétique thermoplastique et en ce que le premier bord comprend, sur sa face en contact avec la deuxième partie de la coiffe, une matière synthétique thermoplastique directement soudée avec la matière thermoplastique de la deuxième partie.  flexible which has a first edge and a second part fixed to said first edge, characterized in that the second part of the cap comprises, on its face in contact with the first edge, a thermoplastic synthetic material and in that the first edge comprises , on its face in contact with the second part of the cap, a thermoplastic synthetic material directly welded with the thermoplastic material of the second part.

Dans des modes de réalisation préférés de l'invention, on peut éventuellement avoir recours, en outre, à l'une et/ou à l'autre des dispositions suivantes - la deuxième partie fixée au premier bord de la coiffe est constituée par un deuxième bord de ladite coiffe ; - le premier bord et le deuxième bord sont rabattus ensemble vers la mousse en étant en contact mutuel par la face externe de la coiffe ; - la deuxième partie est constituée par un profilé appartenant à la coiffe, ledit profilé étant réalisé en un matériau synthétique choisi parmi les matières plastiques et les élastomères ; - la mousse synthétique est moulée au contact de la face interne de la coiffe ; et - la matière thermoplastique de la coiffe comprend des fibres thermoplastiques qui sont choisies parmi les polyesters et les polyamides. In preferred embodiments of the invention, it is optionally possible to have recourse, in addition, to one and / or the other of the following arrangements - the second part fixed to the first edge of the cap is constituted by a second edge of said cap; - The first edge and the second edge are folded together towards the foam while being in mutual contact by the external face of the cap; - The second part consists of a profile belonging to the cap, said profile being made of a synthetic material chosen from plastics and elastomers; - the synthetic foam is molded in contact with the internal face of the cap; and the thermoplastic material of the cap comprises thermoplastic fibers which are chosen from polyesters and polyamides.

Par ailleurs, l'invention a également pour objet un procédé de fabrication d'une coiffe d'habillage pour un élément de siège, ladite coiffe comprenant une première partie souple qui comporte un premier bord et une deuxième partie destinée à être fixée sur le premier bord, ledit premier bord et la deuxième partie comprenant chacun une matière synthétique thermoplastique, le procédé comprenant les étapes suivantes - on chauffe en continu les matières thermoplas- Furthermore, the invention also relates to a method of manufacturing a covering cap for a seat element, said cap comprising a first flexible part which has a first edge and a second part intended to be fixed to the first edge, said first edge and the second part each comprising a thermoplastic synthetic material, the method comprising the following steps - the thermoplastic materials are continuously heated-

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tiques du premier bord et de la deuxième partie de la coiffe jusqu'à leur point de fusion au fur et à mesure de l'avancement simultanée dudit premier bord et de la deuxième partie de la coiffe, - on applique les matières thermoplastiques fondues du premier bord et de la deuxième partie entre elles et on presse le premier bord et ladite deuxième partie de coiffe entre eux au fur et à mesure de leur avancement.  ticks from the first edge and the second part of the cap to their melting point as the first edge and the second part of the cap simultaneously advance, - the molten thermoplastic materials from the first are applied edge and of the second part between them and the first edge and said second cap part are pressed together as they progress.

Ainsi, le procédé de fabrication selon l'invention permet d'assembler de manière simple et efficace un bord de la coiffe avec une autre partie de la coiffe, même lorsque la forme du tracé de la soudure présente de faibles rayons de courbure et ceci grâce à l'avancement simultanée du premier bord de la coiffe avec l'autre partie de ladite coiffe. Thus, the manufacturing method according to the invention makes it possible to assemble an edge of the cap in a simple and effective manner with another part of the cap, even when the shape of the weld line has small radii of curvature, and this thanks to at the simultaneous advancement of the first edge of the cap with the other part of said cap.

On peut également avoir recours à l'une et/ou à l'autre des dispositions suivantes du procédé selon l'invention - la deuxième partie de la coiffe est constituée par un deuxième bord de ladite coiffe ; - la deuxième partie est constituée par un profilé appartenant à la coiffe, ledit profilé étant réalisé en un matériau synthétique choisi parmi les matières plastiques et les élastomères ; - on utilise une machine à coudre pour appliquer et presser les matières thermoplastiques fondues des premier et deuxième bords entre elles, ladite machine à coudre étant pourvue, d'une part, d'un pied presseur et d'une table entre lesquels on alimente les premier et deuxième bords de la coiffe, et d'autre part, d'un pied de biche et d'une aiguille pour permettre l'avancement des premier et deuxième bords de la coiffe au fur et à mesure de leur alimentation, ladite aiguille maintenant lesdits premier et deuxième bords entre eux lors de l'ouverture du pied de biche et du pied presseur ; One can also have recourse to one and / or the other of the following provisions of the method according to the invention - the second part of the cap consists of a second edge of said cap; - The second part consists of a profile belonging to the cap, said profile being made of a synthetic material chosen from plastics and elastomers; a sewing machine is used to apply and press the molten thermoplastic materials from the first and second edges therebetween, said sewing machine being provided, on the one hand, with a presser foot and a table between which the first and second edges of the cap, and secondly, a crowbar and a needle to allow the advancement of the first and second edges of the cap as they are fed, said needle now said first and second edges therebetween when opening the presser foot and the presser foot;

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- on fond simultanément les matières thermoplastiques des premier et deuxième bords de la coiffe au moyen d'une panne chauffante directement disposée en amont du pied presseur de la machine à coudre ; et - on alimente et on presse le premier bord et la deuxième partie de la coiffe entre deux galets d'axes parallèles montés rotatifs et on fond simultanément les matières thermoplastiques du premier bord et de la deuxième partie de la coiffe au moyen d'une panne chauffante directement disposée en amont des deux galets.  - The thermoplastic materials of the first and second edges of the cover are melted simultaneously by means of a heating tip directly disposed upstream of the presser foot of the sewing machine; and - the first edge and the second part of the cap are fed and pressed between two rollers of parallel axes mounted to rotate and the thermoplastic materials of the first edge and the second part of the cap are melted simultaneously by means of a purlin heater directly disposed upstream of the two rollers.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre de plusieurs de ses formes de réalisation, données à titre d'exemples non limitatifs, en regard des dessins joints. Other characteristics and advantages of the invention will become apparent during the following description of several of its embodiments, given by way of nonlimiting examples, with reference to the accompanying drawings.

Sur les dessins - la figure 1 est une vue partielle en perspective d'un siège doté d'un dossier pouvant être réalisé selon l'invention, - la figure 2 est une vue en coupe partielle selon la ligne II-II du coussin du dossier du siège représenté sur la figure 1, - la figure 3 est une vue schématique en coupe verticale illustrant un mode de réalisation du procédé d'assemblage des bords de la coiffe du coussin de la figure 2, - la figure 4 est une vue schématique verticale illustrant un autre mode de réalisation du procédé d'assemblage des bords de la coiffe du coussin de la figure 2, - la figure 5 est une vue en coupe partielle illustrant une autre forme de réalisation de l'assemblage de la coiffe avec un organe rigide du dossier ; - la figure 6 est une vue similaire à celle de la figure 4 illustrant le procédé d'assemblage d'un bord de la In the drawings - Figure 1 is a partial perspective view of a seat with a backrest which can be produced according to the invention, - Figure 2 is a partial sectional view along line II-II of the back cushion of the seat shown in Figure 1, - Figure 3 is a schematic view in vertical section illustrating an embodiment of the method of assembling the edges of the cover of the cushion of Figure 2, - Figure 4 is a schematic vertical view illustrating another embodiment of the method of assembling the edges of the cover of the cushion of FIG. 2, - FIG. 5 is a partial sectional view illustrating another embodiment of the assembly of the cover with a rigid member folder ; - Figure 6 is a view similar to that of Figure 4 illustrating the method of assembling an edge of the

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coiffe avec un organe du siège.  headdress with a seat organ.

Sur les différentes figures, les mêmes références désignent des éléments identiques ou similaires. In the different figures, the same references designate identical or similar elements.

La figure 1 représente une partie de siège 1 de véhicule comportant un dossier 2 surmonté d'un appui-tête 3, le coussin du dossier 2 étant réalisé conformément à la présente invention. On notera toutefois que l'invention n'est pas limitée à la réalisation d'un dossier, mais s'applique au contraire à d'autres éléments de siège tels qu'appui-tête, assise, accoudoirs, etc. FIG. 1 represents a seat part 1 of a vehicle comprising a backrest 2 surmounted by a headrest 3, the backrest cushion 2 being produced in accordance with the present invention. Note however that the invention is not limited to the production of a backrest, but on the contrary applies to other seat elements such as headrest, seat, armrests, etc.

Le coussin du dossier 2 présente extérieurement une coiffe d'habillage 4, qui est généralement réalisée à partir d'au moins une pièce de tissu ou autre formant plusieurs rabats 5, 6 qui sont assemblés le long d'une ou plusieurs lignes de jonctions 7. The back cushion 2 has an exterior covering cap 4, which is generally made from at least one piece of fabric or the like forming several flaps 5, 6 which are assembled along one or more lines of junctions 7 .

Comme représenté plus en détail sur la figure 2, la coiffe d'habillage 4 peut comprendre, par exemple, au moins deux pièces de tissu 5 et 6 souples ayant respectivement, d'une part, des faces extérieures 5a et 6a qui forment la face externe 8 de la coiffe d'habillage, et d'autre part, des faces intérieures 5b et 6b qui forment la face interne 9 de la coiffe 4 en délimitant un certain volume intérieur 9a de ladite coiffe. As shown in more detail in FIG. 2, the covering cap 4 can comprise, for example, at least two pieces of flexible fabric 5 and 6 having respectively, on the one hand, external faces 5a and 6a which form the face outer 8 of the covering cap, and on the other hand, the inner faces 5b and 6b which form the inner face 9 of the cap 4 defining a certain internal volume 9a of said cap.

Ce volume intérieur 9a de la coiffe 4 est rempli d'une matelassure 10 de mousse synthétique, par exemple de la mousse de polyuréthane, qui peut être moulée in situ dans ladite coiffe. Au niveau de la jonction 7, les pièces de tissu 5 et 6 de la coiffe comportent respectivement un premier bord 11 et un deuxième bord 12, qui sont rabattus dans le volume intérieur 9a de ladite coiffe 4 et qui sont en contact par leur face externe 8. Les faces extérieures respectives 5a et 6a des pièces de tissu 5 et 6 comportent, au moins au niveau de la jonction 7, des matières synthétiques thermoplastiques 5c, 6c qui sont soudées entre elles en rendant ainsi parfaitement étanche ladite jonction This internal volume 9a of the cover 4 is filled with a padding 10 of synthetic foam, for example polyurethane foam, which can be molded in situ in said cover. At the junction 7, the pieces of fabric 5 and 6 of the cap respectively have a first edge 11 and a second edge 12, which are folded back into the interior volume 9a of said cap 4 and which are in contact by their external face 8. The respective outer faces 5a and 6a of the pieces of fabric 5 and 6 comprise, at least at the junction 7, thermoplastic synthetic materials 5c, 6c which are welded together thus rendering said junction perfectly waterproof.

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7 de la coiffe 4. Cette étanchéité de la jonction 7 par fusion des matières synthétiques thermoplastiques des bords 11 et 12 est notamment adaptée au moulage in situ du polyuréthane. En effet, dans ce cas le polyuréthane qui est directement injecté à l'état liquide (avant la polymérisation) dans la coiffe ne peut en aucun cas s'échapper par la jonction 7.  7 of the cap 4. This sealing of the junction 7 by fusion of the thermoplastic synthetic materials of the edges 11 and 12 is in particular suitable for the in situ molding of the polyurethane. In this case, the polyurethane which is directly injected in the liquid state (before polymerization) into the cap cannot in any case escape through the junction 7.

Les matières synthétiques thermoplastiques peuvent notamment être constituées par des fibres thermoplastiques 5c, 6c choisies, par exemple, parmi les polyesters et les polyamides. The thermoplastic synthetic materials can in particular consist of thermoplastic fibers 5c, 6c chosen, for example, from polyesters and polyamides.

Afin d'assembler les premier et deuxième bords 11 et 12 des pièces de tissu 5 et 6 de la coiffe, on chauffe tout d'abord les fibres thermoplastiques 5c et 6c jusqu'à leur point de fusion puis on applique les fibres 5c et 6c fondues entre elles tout en exerçant une pression sur la face intérieure 5b et 6b des premier et deuxième bords. A titre d'exemple, la température de fusion des fibres thermoplastiques est d'environ 100 C à 130 C. In order to assemble the first and second edges 11 and 12 of the pieces of fabric 5 and 6 of the cap, the thermoplastic fibers 5c and 6c are first heated to their melting point and then the fibers 5c and 6c are applied. melted together while exerting pressure on the inner face 5b and 6b of the first and second edges. For example, the melting point of the thermoplastic fibers is around 100 C to 130 C.

Ces différentes étapes peuvent être réalisées en une seule et même opération, par exemple au moyen d'une machine à coudre qui comprend notamment, comme on peut le voir sur la figure 3, une panne chauffante 13 qui chauffe simultanément en continu les fibres thermoplastiques 5c et 6c des bords 11 et 12 jusqu'à leur point de fusion. La machine à coudre comporte également, en aval de la panne chauffante, un pied presseur 14 ainsi qu'une table 15 entre lesquels on alimente les premier et deuxième bords il et 12 de la coiffe tout en appliquant une force sur leur face intérieure respective 5b, 6b au moyen dudit pied presseur afin de souder les fibres thermoplastiques entre elles. La machine à coudre comporte, en outre, un pied de biche 16 pour permettre l'avancement des premier et deuxième bords 11 et 12 dans la direction A au fur et à mesure de leur alimentation entre le pied presseur 14 et la table 15. These different steps can be carried out in a single operation, for example by means of a sewing machine which comprises in particular, as can be seen in FIG. 3, a heating purlin 13 which simultaneously heats the thermoplastic fibers 5c continuously and 6c from edges 11 and 12 to their melting point. The sewing machine also comprises, downstream of the heating breakdown, a presser foot 14 as well as a table 15 between which the first and second edges 11 and 12 of the cover are fed while applying a force to their respective inner faces 5b , 6b by means of said presser foot in order to weld the thermoplastic fibers together. The sewing machine further comprises a presser foot 16 to allow the advancement of the first and second edges 11 and 12 in direction A as they are fed between the presser foot 14 and the table 15.

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Avantageusement, la machine à coudre peut également être pourvue d'une aiguille 17 pour maintenir les premier et deuxième bords 11 et 12 entre eux lors de l'ouverture du pied de biche 16 et du pied presseur 14, c'est-à-dire lors de leur éloignement de la table 15. Ce maintien des premier et deuxième bords lors de l'effacement du pied de biche et du pied presseur permet à l'opérateur de suivre la forme du tracé desdits bords notamment au niveau des faibles rayons de courbure.  Advantageously, the sewing machine can also be provided with a needle 17 to hold the first and second edges 11 and 12 between them when the presser foot 16 and the presser foot 14 are opened, that is to say when moving away from the table 15. This maintenance of the first and second edges when the crowbar and the presser foot are erased allows the operator to follow the shape of the layout of said edges, in particular at the small radii of curvature. .

Bien entendu, les trous 18 réalisés par le passage de l'aiguille 17 dans les premier et deuxième bords il, 12 sont étanchés par les fibres fondues qui viennent directement obturer lesdits trous 18 sous l'action des forces exercées par le pied presseur 14 et le pied de biche 16. Of course, the holes 18 produced by the passage of the needle 17 in the first and second edges 11, 12 are sealed by the molten fibers which directly close off said holes 18 under the action of the forces exerted by the presser foot 14 and presser foot 16.

Selon un second mode de réalisation de l'assemblage des premier et deuxième bords 11, 12 de la coiffe, représenté sur la figure 4, les fibres thermoplastiques sont également chauffées jusqu'à leur point de fusion au moyen d'une panne chauffante 13, puis les premier et deuxième bords 11 et 12 sont amenés et pressés entre eux par deux galets 19 et 20 qui comportent des axes respectifs 21 et 22 parallèles. Les deux galets 19 et 20 sont montés rotatifs autour de leur axe et ils sont motorisés, afin de permettre l'avancement des premier et deuxième bords 11, 12 au fur et à mesure de la réalisation de la soudure. According to a second embodiment of the assembly of the first and second edges 11, 12 of the cap, shown in FIG. 4, the thermoplastic fibers are also heated to their melting point by means of a heating tip 13, then the first and second edges 11 and 12 are brought and pressed together by two rollers 19 and 20 which have respective axes 21 and 22 parallel. The two rollers 19 and 20 are rotatably mounted around their axis and they are motorized, in order to allow the advancement of the first and second edges 11, 12 as and when the welding is carried out.

Bien entendu, les premier et deuxième bords 11 et 12 de la coiffe ne doivent pas nécessairement être rabattus dans le volume intérieur de ladite coiffe, et on peut également prévoir, sans sortir du cadre de l'invention, de réaliser l'assemblage en superposant par exemple le premier bord 11 sur le deuxième bord 12 de la coiffe. Dans ce cas, le deuxième bord 12 comprendra, sur sa face en contact avec le premier bord, des fibres thermoplastiques qui seront directement soudées sur ledit premier bord 11. Of course, the first and second edges 11 and 12 of the cap do not necessarily have to be folded down into the interior volume of said cap, and it is also possible, without departing from the scope of the invention, to carry out the assembly by superimposing for example the first edge 11 on the second edge 12 of the cap. In this case, the second edge 12 will comprise, on its face in contact with the first edge, thermoplastic fibers which will be directly welded to said first edge 11.

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Selon une autre forme de réalisation de l'invention représentée sur la figure 5, la coiffe d'habillage 4 comprend, d'une part, une première partie formée d'une pièce de tissu 5 souple ayant un bord 11, et d'autre part, une deuxième partie formée d'un profilé rigide 23 sur lequel on soude le bord 11 de la coiffe. Le profilé rigide 23 pourra être ensuite rapporté par fixation sur l'armature rigide du dossier 2 du siège 1 du véhicule.  According to another embodiment of the invention shown in FIG. 5, the covering cap 4 comprises, on the one hand, a first part formed from a piece of flexible fabric 5 having an edge 11, and on the other hand, a second part formed by a rigid section 23 on which the edge 11 of the cap is welded. The rigid section 23 can then be added by fixing to the rigid frame of the backrest 2 of the seat 1 of the vehicle.

Le profilé rigide 23 est également réalisé dans une matière synthétique thermoplastique qui est destinée à être soudée avec les fibres thermoplastiques 5c du bord 11 de la coiffe. Dans l'exemple considéré, les fibres thermoplastiques sont disposées sur la face intérieure 5b de la pièce de tissu 5. The rigid section 23 is also made of a thermoplastic synthetic material which is intended to be welded with the thermoplastic fibers 5c of the edge 11 of the cap. In the example considered, the thermoplastic fibers are arranged on the inner face 5b of the piece of fabric 5.

Afin que les fibres fondues 5c du bord de la coiffe 4 assurent une parfaite étanchéité de la jonction 7, le profilé 23 qui peut être réalisé dans une matière à base de polypropylène, est également chauffé à l'aide d'une panne chauffante 13. So that the fused fibers 5c of the edge of the cap 4 ensure perfect sealing of the junction 7, the profile 23 which can be produced from a polypropylene-based material, is also heated using a heating tip 13.

Ainsi, comme on peut le voir sur la figure 6, pour assembler le profilé 23 et le bord 11 de la coiffe, les fibres thermoplastiques 5c du bord 11 et le profilé 23 sont chauffés simultanément à l'aide de la même panne chauffante 13, puis les fibres fondues sont directement appliquées et pressées sur la portion fondue du profilé à l'aide de deux galets 19 et 20 montés rotatifs. Thus, as can be seen in FIG. 6, to assemble the profile 23 and the edge 11 of the cover, the thermoplastic fibers 5c of the edge 11 and the profile 23 are heated simultaneously using the same heating tip 13, then the molten fibers are directly applied and pressed on the molten portion of the profile using two rollers 19 and 20 mounted to rotate.

On peut également prévoir d'utiliser des galets dentés pour réaliser, lors du passage de l'ensemble formé par le bord 11 et le profilé rigide 23 entre lesdits galets dentés, des incrustations des fibres thermoplastiques 5c dans le profilé rigide ainsi que des incrustations de style imitant une couture. It is also possible to provide for the use of toothed rollers to produce, during the passage of the assembly formed by the edge 11 and the rigid section 23 between said toothed rollers, inlays of the thermoplastic fibers 5c in the rigid section as well as inlays of style imitating a seam.

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Claims (12)

REVENDICATIONS 1. Elément de siège comportant une matelassure (10) en mousse synthétique recouverte par une coiffe d'habillage (4), cette coiffe (4) présentant une face externe (8) et une face interne (9) au contact de la mousse, ladite coiffe comprenant une première partie souple qui comporte un premier bord (11) et une deuxième partie fixée sur ledit premier bord (11), caractérisé en ce que la deuxième partie de la coiffe comprend, sur sa face en contact avec le premier bord (11), une matière synthétique thermoplastique et en ce que le premier bord (11) comprend, sur sa face en contact avec la deuxième partie de la coiffe, une matière synthétique thermoplastique directement soudée avec la matière thermoplastique de la deuxième partie.1. Seat element comprising a padding (10) made of synthetic foam covered by a covering cap (4), this cap (4) having an external face (8) and an internal face (9) in contact with the foam, said cap comprising a first flexible part which has a first edge (11) and a second part fixed to said first edge (11), characterized in that the second part of the cap comprises, on its face in contact with the first edge ( 11), a thermoplastic synthetic material and in that the first edge (11) comprises, on its face in contact with the second part of the cap, a thermoplastic synthetic material directly welded with the thermoplastic material of the second part. 2. Elément de siège selon la revendication 1, dans lequel la deuxième partie fixée au premier bord (11) de la coiffe est constituée par un deuxième bord (12) de ladite coiffe.2. Seat element according to claim 1, wherein the second part fixed to the first edge (11) of the cap is constituted by a second edge (12) of said cap. 3. Elément de siège selon la revendication 2, dans lequel le premier bord (11) et le deuxième bord (12) sont rabattus ensemble vers la mousse en étant en contact mutuel par la face externe (8) de la coiffe.3. Seat element according to claim 2, wherein the first edge (11) and the second edge (12) are folded together towards the foam while being in mutual contact by the external face (8) of the cap. 4. Elément de siège selon la revendication 1, dans lequel la deuxième partie est constituée par un profilé (23) appartenant â la coiffe, ledit profilé (23) étant réalisé en un matériau synthétique choisi parmi les matières plastiques et les élastomères.4. Seat element according to claim 1, wherein the second part is constituted by a profile (23) belonging to the cap, said profile (23) being made of a synthetic material chosen from plastics and elastomers. 5. Elément de siège selon l'une quelconque des revendications précédentes, dans lequel la mousse synthétique est moulée au contact de la face interne (9) de la coiffe.5. Seat element according to any one of the preceding claims, in which the synthetic foam is molded in contact with the internal face (9) of the cover. 6. Elément de siège selon l'une quelconque des revendications précédentes, dans lequel la matière 6. Seat element according to any one of the preceding claims, in which the material <Desc/Clms Page number 10><Desc / Clms Page number 10> thermoplastique de la coiffe comprend des fibres thermoplastiques (5c,6c) qui sont choisies parmi les polyesters et les polyamides. thermoplastic of the cap comprises thermoplastic fibers (5c, 6c) which are chosen from polyesters and polyamides. 7. Procédé de fabrication d'une coiffe d'habillage (4) pour un élément de siège, ladite coiffe (4) comprenant une première partie souple qui comporte un premier bord (11) et une deuxième partie destinée à être fixée sur le premier bord, ledit premier bord (11) et la deuxième partie comprenant chacun une matière synthétique thermoplastique, le procédé comprenant les étapes suivantes - on chauffe en continu les matières thermoplastiques du premier bord (11) et de la deuxième partie de la coiffe jusqu'à leur point de fusion au fur et à mesure de l'avancement simultanée dudit premier bord et de la deuxième partie de la coiffe, - on applique les matières thermoplastiques fondues du premier bord et de la deuxième partie entre elles et on presse le premier bord (11) et ladite deuxième partie de coiffe entre eux au fur et à mesure de leur avancement.7. Method for manufacturing a covering cap (4) for a seat element, said cap (4) comprising a first flexible part which has a first edge (11) and a second part intended to be fixed on the first edge, said first edge (11) and the second part each comprising a thermoplastic synthetic material, the method comprising the following steps - the thermoplastic materials of the first edge (11) and of the second part of the cap are continuously heated up to their melting point as the first edge and the second part of the cover progress simultaneously, - the molten thermoplastic materials of the first edge and of the second part are applied together and the first edge is pressed ( 11) and said second cap part between them as they progress. 8. Procédé selon la revendication 7, dans lequel la deuxième partie de la coiffe est constituée par un deuxième bord (12) de ladite coiffe.8. The method of claim 7, wherein the second part of the cap is constituted by a second edge (12) of said cap. 9. Procédé selon la revendication 7, dans lequel la deuxième partie est constituée par un profilé (23) appartenant à la coiffe, ledit profilé (23) étant réalisé en un matériau synthétique choisi parmi les matières plastiques et les élastomères.9. The method of claim 7, wherein the second part consists of a profile (23) belonging to the cap, said profile (23) being made of a synthetic material selected from plastics and elastomers. 10.Procédé selon la revendication 8, dans lequel on utilise une machine à coudre pour appliquer et presser les matières thermoplastiques fondues des premier et deuxième bords (11,12) entre elles, ladite machine à coudre étant pourvue, d'une part, d'un pied presseur (14) et d'une table (15) entre lesquels on alimente les premier et deuxième bords (11,12) de la coiffe, et d'autre part, d'un pied de biche (16) et d'une aiguille (17) pour permettre 10. The method of claim 8, wherein a sewing machine is used to apply and press the molten thermoplastic materials of the first and second edges (11,12) therebetween, said sewing machine being provided, on the one hand, with 'a presser foot (14) and a table (15) between which the first and second edges (11,12) of the cover are fed, and on the other hand, a presser foot (16) and d '' a needle (17) to allow <Desc/Clms Page number 11><Desc / Clms Page number 11> l'avancement des premier et deuxième bords de la coiffe au fur et à mesure de leur alimentation, ladite aiguille (17) maintenant lesdits premier et deuxième bords entre eux lors de l'ouverture du pied de biche (16) et du pied presseur (14). the advancement of the first and second edges of the cover as they are fed, said needle (17) holding said first and second edges together when the presser foot (16) and the presser foot ( 14). 11.Procédé selon la revendication 10, dans lequel on fond simultanément les matières thermoplastiques (5c,6c) des premier et deuxième bords (11,12) de la coiffe au moyen d'une panne chauffante (13) directement disposée en amont du pied presseur (14) de la machine à coudre.11. The method as claimed in claim 10, in which the thermoplastic materials (5c, 6c) are simultaneously melted from the first and second edges (11,12) of the cover by means of a heating tip (13) directly disposed upstream of the foot. presser (14) of the sewing machine. 12. Procédé selon l'une ou l'autre des revendications 8 et 9, dans lequel on alimente et on presse le premier bord (11) et la deuxième partie (12;23) de la coiffe entre deux galets (19,20) d'axes (21,22) parallèles montés rotatifs et on fond simultanément les matières thermoplastiques (5c,6c) du premier bord (11) et de la deuxième partie (12;23) de la coiffe au moyen d'une panne chauffante (13) directement disposée en amont des deux galets (19,20).12. Method according to either of claims 8 and 9, in which the first edge (11) and the second part (12; 23) of the cap are pressed and fed between two rollers (19,20) parallel axes (21,22) rotatably mounted and the thermoplastics (5c, 6c) are simultaneously melted from the first edge (11) and the second part (12; 23) of the cover by means of a heating tip ( 13) directly disposed upstream of the two rollers (19,20).
FR0011578A 2000-09-12 2000-09-12 SEAT ELEMENT COMPRISING A COVER FOR COVER AND METHOD FOR MANUFACTURING A COFFEE FOR COVER FOR SUCH A SEAT ELEMENT Expired - Fee Related FR2813774B1 (en)

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FR0011578A FR2813774B1 (en) 2000-09-12 2000-09-12 SEAT ELEMENT COMPRISING A COVER FOR COVER AND METHOD FOR MANUFACTURING A COFFEE FOR COVER FOR SUCH A SEAT ELEMENT

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FR0011578A Expired - Fee Related FR2813774B1 (en) 2000-09-12 2000-09-12 SEAT ELEMENT COMPRISING A COVER FOR COVER AND METHOD FOR MANUFACTURING A COFFEE FOR COVER FOR SUCH A SEAT ELEMENT

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933895A1 (en) * 2008-07-21 2010-01-22 Faurecia Sieges Automobile Cover fixing method for rear plate of e.g. seat element, in motor vehicle, involves embedding edges of cover in thickness of rear plate of seat element, under thermal and pressure constraints, where plate is made of expanded polypropylene
WO2017140714A1 (en) * 2016-02-19 2017-08-24 Frimo Group Gmbh Method for sealing a seam region, and plastic skin

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GB1006601A (en) * 1962-04-24 1965-10-06 George Walter Henry Smith Improvements relating to the joining together of fabrics
US3566423A (en) * 1968-09-05 1971-03-02 Universal Oil Prod Co Contoured cushion
US5130074A (en) * 1990-05-28 1992-07-14 Kabushiki Kaisha Toyo Seat (Toyo Seat Ltd.) Method and apparatus for manufacturing a skin-covered article
JPH04364883A (en) * 1991-06-11 1992-12-17 Araco Corp Seat cover groove bonding method and mold pad structure
US5845995A (en) * 1994-05-04 1998-12-08 Starlinger & Co. Gesellschaft Mbh Bag made of polymer and especially polyolefine fabric and process for producing it

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GB866063A (en) * 1956-12-07 1961-04-26 Hoechst Ag A method of welding stretched foils of weldable thermoplastic artificial materials
GB1006601A (en) * 1962-04-24 1965-10-06 George Walter Henry Smith Improvements relating to the joining together of fabrics
US3566423A (en) * 1968-09-05 1971-03-02 Universal Oil Prod Co Contoured cushion
US5130074A (en) * 1990-05-28 1992-07-14 Kabushiki Kaisha Toyo Seat (Toyo Seat Ltd.) Method and apparatus for manufacturing a skin-covered article
JPH04364883A (en) * 1991-06-11 1992-12-17 Araco Corp Seat cover groove bonding method and mold pad structure
US5845995A (en) * 1994-05-04 1998-12-08 Starlinger & Co. Gesellschaft Mbh Bag made of polymer and especially polyolefine fabric and process for producing it

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933895A1 (en) * 2008-07-21 2010-01-22 Faurecia Sieges Automobile Cover fixing method for rear plate of e.g. seat element, in motor vehicle, involves embedding edges of cover in thickness of rear plate of seat element, under thermal and pressure constraints, where plate is made of expanded polypropylene
WO2017140714A1 (en) * 2016-02-19 2017-08-24 Frimo Group Gmbh Method for sealing a seam region, and plastic skin
US11390040B2 (en) 2016-02-19 2022-07-19 Frimo Group Gmbh Method for sealing a seam region, and plastic skin

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