EP1430814B1 - Upholstery element and method of manufacturing - Google Patents

Upholstery element and method of manufacturing Download PDF

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Publication number
EP1430814B1
EP1430814B1 EP03027619A EP03027619A EP1430814B1 EP 1430814 B1 EP1430814 B1 EP 1430814B1 EP 03027619 A EP03027619 A EP 03027619A EP 03027619 A EP03027619 A EP 03027619A EP 1430814 B1 EP1430814 B1 EP 1430814B1
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EP
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Prior art keywords
layer
viscoelastic
elastic
elastic layer
upholstery element
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German (de)
French (fr)
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EP1430814A1 (en
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Antonio Piccinini
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New Wind Srl
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New Wind Srl
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience

Definitions

  • the above invention relates to a cushioning member, and a method for its production.
  • a padded piece of synthetic material e.g. made of a polyurethane material.
  • the above invention relates to a cushion part for the manufacture of mattresses, which are very comfortable and durable and where the consumers have found favor.
  • the conventional plastic padding usually comprises a layer of elastic material in combination with a layer of viscoelastic material.
  • viscoelastic material results in considerable comfort as it has some shape memory characteristics and has a deformation when the body rests on the mattress with little influence on the body of the user and returns to its original shape upon leaving the mattress by the user . Furthermore, viscoelastic materials are sensitive to heat and also deform when exposed to the body heat of the user, a fact which leads to further comfort for the user.
  • the conventional upholstery in plan view two layers with the same dimensions and these layers are formed of elastic material and viscoelastic material, wherein the two layers are interconnected by a further adhesive layer.
  • the conventional upholstery has many drawbacks, which are mainly seen in the fact that the adhesive layer over time, an aging process learns and leads to a hardening of the adhesive and to dissolve the glued together layers.
  • the Japanese patent application JP-A-11 18867 can be taken from a seat or backrest part for a chair.
  • Each of these components consists of a flat base plate on which a coating of urethane is foamed, this first coating receives a second gelatinous coating and the body thus formed is placed in a thin sheath to create a seat or backrest part for a chair ,
  • the known components are finished using an adhesive and have, by providing a support plate, a rigid in the surface structure.
  • French patent application FR-A-2816187 can be taken from a car seat whose body is made of foamed plastic, this body is covered by a textile coating.
  • the method is suitable for the production of smaller components, wherein after completion of the seat part, a peripheral separation of the protruding edges of the coating consisting of textile material is necessary.
  • Another object of the invention is to provide a cushioning member in which the mutually interconnected surfaces of the elastic layer and the viscoelastic layer do not have particularly elaborate shapes, e.g. under the provision of numerous protruding parts and / or recesses with undercut.
  • the provision of very complicated shaping for the layers to be joined involves the risk that the finished mattress will have less bearing surfaces, e.g. in accordance with the user's shoulders, ankles or kidney area.
  • the pad part has two or more Partfumbleen with different shape, so as to give these sub-areas different carrying capacity.
  • the viscoelastic layer has edge regions which at least partially cover the side regions of the elastic layer or vice versa.
  • the elastic layer and the viscoelastic layer consist essentially of a polyurethane material, and the cushion part is used to create a mattress.
  • the above invention further relates to a method for producing a cushion part according to claim 6.
  • the cushioning member by introducing into the mold the elastic material and foaming by means of a viscoelastic material or vice versa, ie by introducing viscoelastic material into the mold and completing the foaming process by means of elastic material ,
  • the viscoelastic material is injected on a front side of a wall or in correspondence with the side edges of the elastic layer.
  • the viscoelastic material is introduced not only at the top and laterally in the mold, but also at the bottom of the elastic layer or vice versa.
  • FIG. 1 a cushion part is shown, which is marked overall with 1.
  • the poster part 1 has an elastic layer 2 and a viscoelastic layer 3; the layers 2, 3 are connected to each other in correspondence with opposite inner surfaces 4.
  • the elastic layer 2 and the viscoelastic layer 3 are directly connected to each other, without an adhesive for this connection process use.
  • the part 1 in a preferred embodiment, two or more different deformations 15,16, thereby to give the respective sections different support functions.
  • the different shaping can be provided by provision of projecting parts 5 and receding parts 6 of different dimensions in each section 15,16.
  • the double advantage is achieved that the surface of the cushion part 1 appears to be very uniform when touched, as desired by the end user.
  • FIG. 14 an embodiment is shown in which the elastic layer 2 is embedded in the viscoelastic layer 3.
  • FIG. 13 shows a non-inventive cushion part, in which the elastic layer 2, which is embedded in the viscoelastic layer 3, consists of a component with spring cores.
  • the elastic layer can also be produced by means of other production methods and optionally embedded in the viscoelastic layer or can not be embedded.
  • the elastic layer and the viscoelastic layer are produced using a polyurethane material. It is obvious that other plastic materials can be used, which have sufficient chemical Adesion, as soon as the viscoelastic layer is foamed onto the material of the elastic layer.
  • the cushioning member preferably consists of a cushion for a mattress, but according to other embodiments it is also possible to use the cushioning member as a seat or back upholstery for sofas, armchairs or chairs, or as pillows or sanitary products, wheelchair seating and kidney supports or anti-wound coating.
  • the above invention also relates to a method of manufacturing the cushioning member.
  • the method proposes to place a layer of elastic material 2 in the interior of a mold and to foam this mold with viscoelastic material in order to embed the upholstery part without the use of adhesives.
  • the viscoelastic material is injected on a front wall as well as on sidewalls of the elastic layer so as to provide edge regions 7 which have the task of securing and protecting the elastic layer 2 in a desired position.
  • the viscoelastic material is foamed only in correspondence with a front side of the elastic layer, whereas in other embodiments the elastic layer becomes embedded in the viscoelastic material.
  • the elastic layer 2 and the viscoelastic layer 3 of polyuretane are advantageousously, the elastic layer 2 and the viscoelastic layer 3 of polyuretane.

Abstract

Mattresses (1) and padded areas of sofas or chairs are made nowadays often of two layers (2, 3) of foam rubber with different qualities. An elastic core (2) or lower layer is covered by a soft material with a memory (3), both joined with a glue which can get crumbly or rigid with time. The new design of the device (1) is assembled of two parts (2, 3) provided with complementary structured surfaces (4), engaging with each other. The structures (4) can be arranged in a multitude of patterns.

Description

Die vorstehende Erfindung betrifft ein Polsterteil, sowie ein Verfahren zu dessen Herstellung.The above invention relates to a cushioning member, and a method for its production.

Im Folgenden wird auf ein Polsterteil aus synthetischem Material, z.B. aus einem Polyuretanwerkstoff Bezug genommen.Hereinafter, a padded piece of synthetic material, e.g. made of a polyurethane material.

Die vorstehende Erfindung betrifft ein Polsterteil für die Herstellung von Matratzen, welche sehr bequem und widerstandsfähig sind und an denen die Verbraucher Gefallen gefunden haben.The above invention relates to a cushion part for the manufacture of mattresses, which are very comfortable and durable and where the consumers have found favor.

Es ist naheliegend, dass das im Nachfolgenden beschriebene Bauteil sowie das dazugehörige Verfahren auch für die Herstellung von einer Polsterung für Sitzflächen und / oder Rückenlehnen von Stühlen oder Sofas, Kissen oder Polstern oder sanitären Erzeugnissen, wie z.B. Sitzpolstern für Kinderwagen, Nierenstützen in besonderer Ausführungsform einsetzbar sind.It is obvious that the component described below and the associated method also for the production of upholstery for seats and / or backrests of chairs or sofas, cushions or upholstery or sanitary products, such as seat cushions for Strollers, kidney supports can be used in a particular embodiment.

Die herkömmlichen aus Kunststoff bestehenden Polsterungen weisen üblicherweise eine Schicht bestehend aus elastischem Material in Kombination mit einer Schicht aus viskoelastischen Material auf.The conventional plastic padding usually comprises a layer of elastic material in combination with a layer of viscoelastic material.

Die Verwendung von viskoelastischem Material führt zu einem erheblichen Konfort, da es in gewisser Weise Formgedächtnismerkmale aufweist und eine Verformung bei Aufliegen des Körpers auf der Matratze unter geringem Einfluß auf den Körper des Benutzers aufweist und nach Verlassen der Matratze durch den Benutzer in seine ursprüngliche Form zurückkehrt. Ferner sind viskoelastische Materialen wärmeempfindlich und verformen sich auch bei Einwirken der Körperwärme des Benutzers, Tatsache, die zu einem weiteren Komfort für den Benutzer führt.The use of viscoelastic material results in considerable comfort as it has some shape memory characteristics and has a deformation when the body rests on the mattress with little influence on the body of the user and returns to its original shape upon leaving the mattress by the user , Furthermore, viscoelastic materials are sensitive to heat and also deform when exposed to the body heat of the user, a fact which leads to further comfort for the user.

Besonders weisen die herkömmlichen Polsterungen in Draufsicht zwei Schichten mit gleichen Abmessungen auf und diese Schichten sind aus elastischem Material und viskoelastischem Material gebildet, wobei die beiden Schichten durch eine weitere Kleberschicht miteinander verbunden sind.In particular, the conventional upholstery in plan view two layers with the same dimensions and these layers are formed of elastic material and viscoelastic material, wherein the two layers are interconnected by a further adhesive layer.

Die herkömmlichen Polsterungen weisen zahlreiche Nachteile auf, die hauptsächlich darin zu sehen sind, dass die Klebeschicht im Laufe der Zeit einen Alterungsprozess erfährt und zu einer Verhärtung des Klebers führt sowie zum Lösen der miteinander verklebten Schichten.The conventional upholstery has many drawbacks, which are mainly seen in the fact that the adhesive layer over time, an aging process learns and leads to a hardening of the adhesive and to dissolve the glued together layers.

Desweiteren konnte festgestellt werden, dass bei den bekannten Polsterungen Schäden aufgrund eines mangelhaften Klebers oder aufgrund einer nicht sachgerechten Verklebung auftreten können.Furthermore, it was found that in the known upholstery damage due to a defective adhesive or due to improper bonding can occur.

Ferner, da die beiden Schichten der Polsterungen miteinander verklebt sind, ist es unumgänglich, dass die miteinander verbundenen Flächen der beiden Schichten als ebenes Bauteil auszuführen sind oder unter Verwendung von Krümmungen mit sehr großem Radius, um zu gewährleisten, dass die zu verbindenden Flächen stets flächig miteinander verbunden bleiben. Es würden erhebliche Schwierigkeiten auftreten, die zu einer Verteuerung des Fertigungsprozesses führen würden, wenn zwei Flächen von Materialschichten miteinander zu verbinden wären, die nicht im Wesentlichen ebenen Verlauf hätten oder über genau zueinander passende Verbindungsprofile zu verbinden wären.Further, since the two layers of padding are glued together, it is inevitable that the interconnected surfaces of the two layers be made as a planar member or using very large radius bends to ensure that the surfaces to be bonded are always planar stay connected. Significant difficulties would arise which would lead to an increase in the cost of the manufacturing process if two surfaces of layers of material were to be joined together that did not have a substantially planar course or were to be connected by means of precisely fitting connection profiles.

Der japanischen Patentanmeldung JP-A-11 18867 kann ein Sitz- oder Lehnenteil für einen Stuhl entnommen warden. Jedes dieser Bauteile besteht aus einer ebenen Grundplatte, auf die eine Beschichtung aus Uretan aufgeschäumt wird, wobei diese erste Beschichtung eine zweite gelartige Beschichtung aufnimmt und der dadurch gebildete Körper in eine dünne Ummantelung eingebracht wird, um ein Sitz- oder Lehnenteil für einen Stuhl zu schaffen. Die bekannten Bauteile werden unter Verwendung eines Klebers fertig bearbeitet und weisen, durch Vorsehen einer Trägerplatte, einen in der Fläche starren Aufbau auf.The Japanese patent application JP-A-11 18867 can be taken from a seat or backrest part for a chair. Each of these components consists of a flat base plate on which a coating of urethane is foamed, this first coating receives a second gelatinous coating and the body thus formed is placed in a thin sheath to create a seat or backrest part for a chair , The known components are finished using an adhesive and have, by providing a support plate, a rigid in the surface structure.

Der französischen Patentanmeldung FR-A-2816187 kann ein Autositz entnommen werden, dessen Körper aus geschäumtem Kunststoff besteht, wobei dieser Körper durch eine Textilbeschichtung verkleidet wird. Das Verfahren eignet sich zur Herstellung kleinerer Bauteile, wobei nach Fertigstellung des Sitzteiles ein umfangsseitiges Abtrennen der abstehenden Ränder der aus textilem Material bestehenden Beschichtung notwendig wird.The French patent application FR-A-2816187 can be taken from a car seat whose body is made of foamed plastic, this body is covered by a textile coating. The method is suitable for the production of smaller components, wherein after completion of the seat part, a peripheral separation of the protruding edges of the coating consisting of textile material is necessary.

Aufgabe der vorstehenden Erfindung ist es die eingangs genannten technischen Nachteile des Standes der Technik zu vermeiden.Object of the above invention is to avoid the above-mentioned technical disadvantages of the prior art.

Besonders ist es Aufgabe der Erfindung, ein Polsterteil zu schaffen, bei dem die Gefahr, dass sich zwei miteinander verbundene Schichten voneinander lösen, sehr gering ist. Eine weitere Aufgabe der Erfindung besteht darin, ein Polsterteil zu schaffen, das nicht bereits als neues Fertigteil als Ausschuss zu bewerten ist, da die Klebevorgänge nicht fachgerecht durchgeführt wurden.It is a particular object of the invention to provide a cushion part in which the risk that two interconnected layers separate from each other, is very low. Another object of the invention is a To provide upholstery, which is not already evaluated as a new finished part as a committee, since the gluing processes were not performed properly.

Dies ist besonders wichtig, da in bekannter Weise Klebevorgänge von Bauteilen aus Kunststoff größte Fachkenntnis voraussetzen.This is particularly important, since in a known manner adhesive bonding of components made of plastic require the greatest expertise.

Ferner besteht bei Klebeverbindungen die Gefahr, dass Allergien aufgrund der eingesetzten chemischen Lösungsmittel auftreten könnten und Abneigungen gegenüber der Verwendung herkömmlicher Matratzen mit Klebeverbindungen bestehen könnten.Furthermore, in the case of adhesive bonds there is the danger that allergies could occur due to the chemical solvents used and that there could be aversion to the use of conventional mattresses with adhesive bonds.

Eine weitere Aufgabe der Erfindung ist darin zu sehen ein Polsterteil zu schaffen, bei dem die gegenseitig miteinander verbundenen Flächen der elastischen Schicht und der viskoelastischen Schicht nicht besonders aufwendige Formgestaltung aufweisen, z.B. unter Vorsehung von zahlreichen, vorspringenden Teilen und / oder Ausnehmungen mit Hinterschneidung.Another object of the invention is to provide a cushioning member in which the mutually interconnected surfaces of the elastic layer and the viscoelastic layer do not have particularly elaborate shapes, e.g. under the provision of numerous protruding parts and / or recesses with undercut.

Auf diese Weise besteht bei Vorsehung sehr aufwendiger Formgebung für die zu verbindenden Schichten die Gefahr, dass die fertiggestellte Matratze weniger tragende Flächen aufweist, z.B. in Übereinstimmung mit den Schultern, den Fußgelenken oder des Nierenbreiches des Benutzers.In this way, the provision of very complicated shaping for the layers to be joined involves the risk that the finished mattress will have less bearing surfaces, e.g. in accordance with the user's shoulders, ankles or kidney area.

Die vorgenannten Aufgaben werden mittels eines Polsterteiles gemäss Anspruch 1 gelöst.The aforementioned objects are achieved by means of a cushion part according to claim 1.

Es ist ferner vorteilhaft, dass das Polsterteil zwei oder mehrere Teilfächen mit unterschiedlicher Formgebung aufweist, um somit diesen Teilflächen unterschiedliche Tragfähigkeit zu verleihen.It is also advantageous that the pad part has two or more Teilfächen with different shape, so as to give these sub-areas different carrying capacity.

In vorteilhafter Weise weist die viskoelastische Schicht Randbereiche auf, die zumindestens teilweise die Seitenbereiche der elastischen Schicht oder umgekehrt abdecken.Advantageously, the viscoelastic layer has edge regions which at least partially cover the side regions of the elastic layer or vice versa.

In einer besonderen Ausführungsform bestehen die elastische Schicht und die viskoelastische Schicht im Wesentlichen aus einem Polyuretanwerkstoff und das Polsterteil wird für die Schaffung einer Matratze herangezogen.In a particular embodiment, the elastic layer and the viscoelastic layer consist essentially of a polyurethane material, and the cushion part is used to create a mattress.

Die vorstehende Erfindung bezieht sich ferner auf ein Verfahren zur Herstellung eines Polsterteiles, gemäss Anspruch 6.The above invention further relates to a method for producing a cushion part according to claim 6.

In der Praxis ist es möglich, das Polsterteil dadurch herzustellen, indem in die Form das elastische Material eingebracht wird und ein Ausschäumen mittels eines viskoelastischen Materials erfolgt oder umgekehrt, d.h., indem in die Form viskoelastisches Material eingebracht wird und der Ausschäumvorgang mittels elastischem Material vervollständigt wird.In practice, it is possible to produce the cushioning member by introducing into the mold the elastic material and foaming by means of a viscoelastic material or vice versa, ie by introducing viscoelastic material into the mold and completing the foaming process by means of elastic material ,

In vorteilhafter Weise wird das viskoelastische Material an einer Frontseite einer Wand oder in Übereinstimmung mit den Seitenrändern der elastischen Schicht eingespritzt.Advantageously, the viscoelastic material is injected on a front side of a wall or in correspondence with the side edges of the elastic layer.

Nach einer weiteren Ausführungsform wird das viskoelastische Material nicht nur an der Oberseite und seitlich in die Form eingebracht, sondern auch an der Unterseite der elastischen Schicht oder umgekehrt.According to a further embodiment, the viscoelastic material is introduced not only at the top and laterally in the mold, but also at the bottom of the elastic layer or vice versa.

Das somit hergestellte Polsterteil sowie das dazu erforderliche Verfahren sind besonders wirtschaftlich, besonders im Vergleich mit Polsterteilen sowie deren Herstellungsverfahren, die aus dem Stand der Technik bekannt sind und ferner tritt eine verminderte Ausschußquote auf.The upholstery part thus produced and the process required for it are particularly economical, especially in comparison with upholstery parts and their production processes, which are known from the prior art and also occurs a reduced rejection rate.

Weitere Merkmale und Vorteile der Erfindung können der nun folgenden Beschreibung und den beigefügten Zeichnungen entnommen werden.Further features and advantages of the invention can now following description and the accompanying drawings.

Es zeigen:Show it:

  • Figur 1 in perspektivischer Ansicht teilweise im Schnitt ein nicht erfindungsgemässes Polsterteil; FIG. 1 in perspective view partially in section a not according to the invention cushion part;
  • Figur 2 eine Ansicht auf die Unterseite des Polsterteiles gemäß Figur 1; FIG. 2 a view of the underside of the cushion part according to FIG. 1 ;
  • Figur 3 eine perspektivische Darstellung teilweise im Schnitt eines erfindungsgemäßen Polsterteiles; FIG. 3 a perspective view partially in section of a cushion member according to the invention;
  • die Figuren 4 bis 10 schematische Schnittdarstellungen verschiedener Ausführungsbeispiele des erfindungsgemäßen Polsterteiles; undthe FIGS. 4 to 10 schematic sectional views of various embodiments of the cushion part of the invention; and
  • die Figuren 11 bis 14 perspektivische Darstellungen teilweise im Schnitt von weiteren Ausführungsformen nicht erfindungsgemäßer Poltsterteile.the FIGS. 11 to 14 perspective views partly in section of further embodiments not inventive Poltsterteile.

In Figur 1 wird ein Polsterteil dargestellt, das gesamthaft mit 1 gekennzeichnet ist.In FIG. 1 a cushion part is shown, which is marked overall with 1.

Das Posterteil 1 weist eine elastische Schicht 2 auf sowie eine viskoelastische Schicht 3; die Schichten 2,3 sind miteinander in Übereinstimmung mit sich gegenüberliegenden inneren Flächen 4 verbunden.The poster part 1 has an elastic layer 2 and a viscoelastic layer 3; the layers 2, 3 are connected to each other in correspondence with opposite inner surfaces 4.

In vorteilhafter Weise sind die elastische Schicht 2 sowie die viskoelastische Schicht 3 direkt miteinander verbunden, ohne für diesen Verbindungsvorgang einen Kleber einzusetzen.Advantageously, the elastic layer 2 and the viscoelastic layer 3 are directly connected to each other, without an adhesive for this connection process use.

Wie der Figur 3 zu entnehmen ist, weisen die Flächen der elastischen Schicht 2 sowie der viskoelastischen Schicht 3 ein geformtes Profil auf. In erfindungsgemässer Weise weisen die Formprofile der elastischen Schicht 2 und der viskoelastischen Schicht 3 vorspringende Teile 5 und zurückstehende Teile 6 auf.Again FIG. 3 can be seen, the surfaces of the elastic layer 2 and the viscoelastic layer 3 on a shaped profile. In accordance with the invention, the shaped profiles of the elastic layer 2 and the viscoelastic layer 3 have projecting parts 5 and recessed parts 6.

Wie z.B. den Figuren 9 und 10 zu entnehmen ist, weist das Teil 1 in einer bevorzugten Ausführungsform zwei oder mehrere unterschiedliche Verformungen 15,16 auf, um dadurch den entsprechenden Teilstücken unterschiedliche Stützfunktionen zu verleihen.Like the Figures 9 and 10 can be seen, the part 1 in a preferred embodiment, two or more different deformations 15,16, thereby to give the respective sections different support functions.

So kann die unterschiedliche Formgebung durch Vorsehung von vorspringenden Teilen 5 und zurücktretenden Teilen 6 mit unterschiedlichen Abmessungen in jedem Abschnitt 15,16 vorgesehen sein.Thus, the different shaping can be provided by provision of projecting parts 5 and receding parts 6 of different dimensions in each section 15,16.

Diese Maßnahme hat sich als vorteihaft erwiesen, um die Tragfähigkeit in Übereinstimmung mit verschiedenen Körperteilen des Benutzers z.B. in Übereinstimmung der Waden, des Nierenbereiches oder der Schultern zu erreichen. In besonders vorteilhafter Weise, wie dies in Figur 1 oder 3 dargestellt ist, weist die viskoelastische Schicht 3 abstehende Ränder oder Kanten 7 auf, die wenigstens teilweise die Seitenränder 8 der elastischen Schicht 2 abdecken.This measure has proved to be advantageous in order to achieve the carrying capacity in accordance with different parts of the body of the user, for example in accordance with the calves, the kidney area or the shoulders. In a particularly advantageous manner, as in FIG. 1 or 3 is shown, the viscoelastic layer 3 on projecting edges or edges 7, which at least partially cover the side edges 8 of the elastic layer 2.

Mit dieser Maßnahme wird der zweifache Vorteil erzielt, dass die Fläche des Polsterteiles 1 bei Berührung sehr gleichförmig erscheint, wie dies vom Endverbraucher gewünscht ist.With this measure, the double advantage is achieved that the surface of the cushion part 1 appears to be very uniform when touched, as desired by the end user.

Ferner wird eine besonders stabile Verbindung zwischen der elastischen Schicht 2 und der viskoelastischen Schicht 3 erzielt, da neben der chemischen Verbindung auch eine mechanische Haltewirkung durch die Ränder 7 erreicht wird.Furthermore, a particularly stable connection between the elastic layer 2 and the viscoelastic layer 3 is achieved, since in addition to the chemical compound, a mechanical holding action is achieved by the edges 7.

In Figur 14 ist ein Ausführungsbeispiel dargestellt, bei dem die elastische Schicht 2 in die viskoelastische Schicht 3 eingebettet ist. Figur 13 zeigt ein nicht erfindungsgemässes Polsterteil, bei dem die elastische Schicht 2, die in die viskoelastische Schicht 3 eingebettet ist, aus einem Bauteil mit Federkernen besteht.In FIG. 14 an embodiment is shown in which the elastic layer 2 is embedded in the viscoelastic layer 3. FIG. 13 shows a non-inventive cushion part, in which the elastic layer 2, which is embedded in the viscoelastic layer 3, consists of a component with spring cores.

Es ist naheliegend, dass die elastische Schicht auch mittels anderer Fertigungsverfahren herstellbar ist und wahlweise in die viskoelastische Schicht eingebettet oder nicht eingebettet werden kann.It is obvious that the elastic layer can also be produced by means of other production methods and optionally embedded in the viscoelastic layer or can not be embedded.

Bei einem bevorzugten Ausführungsbeispiel sind die elastische Schicht und die viskoelastische Schicht unter Verwendung eines Polyuretanwerkstoffes erzeugt. Es ist naheliegend, dass auch andere Kunststoffmaterialen Verwendung finden können, die ausreichende chemische Adesion aufweisen, sobald die viskoelastische Schicht auf das Material der elastischen Schicht aufgeschäumt wird.In a preferred embodiment, the elastic layer and the viscoelastic layer are produced using a polyurethane material. It is obvious that other plastic materials can be used, which have sufficient chemical Adesion, as soon as the viscoelastic layer is foamed onto the material of the elastic layer.

Das Polsterteil besteht vorzugsweise aus einem Polster für eine Matratze, aber gemäß anderen Ausführungsbeispielen besteht auch die Möglichkeit, das Polsterteil als Sitz oder Rückenpolsterung für Sofas, Sessel oder Stühle zu verwenden oder als Kissen oder Erzeugnisse für den sanitären Bereich, Sitzauflagen für Rollstühle sowie als Nierenstützen oder Antiwundbelag.The cushioning member preferably consists of a cushion for a mattress, but according to other embodiments it is also possible to use the cushioning member as a seat or back upholstery for sofas, armchairs or chairs, or as pillows or sanitary products, wheelchair seating and kidney supports or anti-wound coating.

Die vorstehende Erfindung betrifft auch ein Verfahren zur Herstellung des Polsterteiles.The above invention also relates to a method of manufacturing the cushioning member.

Das Verfahren schlägt vor, eine Schicht aus elastischem Material 2 in das Innere einer Form einzubringen und diese Form mit viskoelastischem Material auszuschäumen, um das Polsterteil ohne die Verwendung von Klebern einzubetten.The method proposes to place a layer of elastic material 2 in the interior of a mold and to foam this mold with viscoelastic material in order to embed the upholstery part without the use of adhesives.

In gleicher Weise ist es möglich, in die Form eine viskoelastische Schicht 3 einzubringen und dann elastisches Material in die Form einzuschäumen.In the same way, it is possible to introduce into the mold a viscoelastic layer 3 and then to foam elastic material into the mold.

Das viskoelastische Material wird an einer Vorderwand sowie an Seitenwänden der elastischen Schicht eingespritzt, um somit Randbereiche 7 zu schaffen, die die Aufgabe haben, die elastische Schicht 2 in einer gewünschten Lage festzulegen und zu schützen.The viscoelastic material is injected on a front wall as well as on sidewalls of the elastic layer so as to provide edge regions 7 which have the task of securing and protecting the elastic layer 2 in a desired position.

Bei anderen möglichen Ausführungsformen, wird das viskoelastische Material nur in Übereinstimmung mit einer Vorderseite der elastischen Schicht eingeschäumt, hingegen bei anderen Ausführungsformen wird die elastische Schicht in das viskoelastische Material eingebettet.In other possible embodiments, the viscoelastic material is foamed only in correspondence with a front side of the elastic layer, whereas in other embodiments the elastic layer becomes embedded in the viscoelastic material.

Selbstverständlich ist es auch möglich, das elastische Material durch Aufschäumen auf das viskoelastische Material aufzubringen, ohne aus dem Schutzbereich des Verfahrens auszutreten.Of course, it is also possible to apply the elastic material by foaming on the viscoelastic material without departing from the scope of the method.

In vorteilhafter Weise besteht die elastische Schicht 2 und die viskoelastische Schicht 3 aus Polyuretan.Advantageously, the elastic layer 2 and the viscoelastic layer 3 of polyuretane.

Claims (8)

  1. Upholstery element (1), comprising an elastic layer (2) and a viscoelastic layer (3), wherein the elastic layer (2) and the viscoelastic layer (3) are directly joined together at inner surfaces (4), characterized in that the inner walls (4) of the elastic layer (2) and of the viscoelastic layer (3) have a profile-type shaping, with the shaped profiles of the elastic layer (2) and of the viscoelastic layer (3) having protruding parts (5) and recesses (6).
  2. Upholstery element (1) according to Claim 1, characterized in that two or more sections (15, 16) having different shaping are provided, and each section (15, 16) is designed with a different load-bearing capacity.
  3. Upholstery element (1) according to Claim 1, characterized in that the viscoelastic layer (3) has protruding borders (7) which at least partially cover lateral borders (8) of the elastic layer (2).
  4. Upholstery element (1) according to Claims 1-3, characterized in that the elastic layer (2) and the viscoelastic layer (3) are composed of a polyurethane material.
  5. Upholstery element (1) according to Claims 1-4, characterized in that the upholstery element (1) is part of a mattress.
  6. Method of manufacturing an upholstery element (1) according to one or more of the preceding claims, characterized in that a layer of elastic material or a layer of viscoelastic material is placed into the interior of a mould and viscoelastic material or elastic material is foamed into the mould, and in that the layer comprising elastic material and the layer made of viscoelastic material are embedded therein.
  7. Method according to Patent Claim 6, characterized in that the viscoelastic material is injected on a front side or on lateral parts of the elastic layer, or vice versa.
  8. Method according to one or more of Claims 6 and 7, characterized in that the elastic layer and the viscoelastic layer are composed of polyurethane.
EP03027619A 2002-12-17 2003-12-02 Upholstery element and method of manufacturing Expired - Lifetime EP1430814B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT002651A ITMI20022651A1 (en) 2002-12-17 2002-12-17 ELEMENT OF PADDING AND PROCEDURE FOR ITS REALIZATION.
ITMI20022651 2002-12-17

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EP1430814A1 EP1430814A1 (en) 2004-06-23
EP1430814B1 true EP1430814B1 (en) 2008-06-25

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EP (1) EP1430814B1 (en)
AT (1) ATE398950T1 (en)
DE (1) DE50310033D1 (en)
DK (1) DK1430814T3 (en)
ES (1) ES2309270T3 (en)
IT (1) ITMI20022651A1 (en)
PT (1) PT1430814E (en)

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US7707670B2 (en) 2003-10-14 2010-05-04 Tempur-Pedic Management, Inc. Pillow top for a cushion
US8025964B2 (en) 1994-06-03 2011-09-27 Tempur World, Llc Laminated visco-elastic support
US8418297B2 (en) 2005-06-24 2013-04-16 Tempur-Pedic Management, Llc Reticulated material body support and method

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DE202006009902U1 (en) * 2006-06-22 2006-09-07 Recticel Schlafkomfort Gmbh Mattress is made up of three layers of foam material of different stress-strain compression, boundaries between layers being wavy, so that their thickness varies at different points along mattress
ES2326250B1 (en) * 2007-11-15 2010-06-01 Taexpa, S.L. ADDRESSABLE AMORTIGUATION SYSTEM FOR PRESSURE OR IMPACT RECEIVING BODIES.
ES2730179T3 (en) 2012-07-27 2019-11-08 Tempur Pedic Man Llc Body support cushion that has multiple layers of phase change material
WO2015011524A1 (en) * 2013-07-23 2015-01-29 Anomaly Action Sports S.R.L. Composite element for protection devices of parts of the human body
FR3114951B1 (en) * 2020-10-08 2023-10-27 Ergoptimiz Bedding enlarger mattress topper

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JPH1118867A (en) * 1997-06-30 1999-01-26 Takara Belmont Co Ltd Chair and its manufacture
FR2818187A1 (en) * 2000-12-20 2002-06-21 Cera Motor vehicle seat component made by injecting two layers of foam after positioning front and back covering layers in mould

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US5749111A (en) * 1996-02-14 1998-05-12 Teksource, Lc Gelatinous cushions with buckling columns
JP2975894B2 (en) * 1996-07-12 1999-11-10 難波プレス工業株式会社 Multi-layer seat of different hardness with skin and method of manufacturing the same
GB2346553B (en) * 2000-04-29 2001-01-10 Sareo Healthcare Ltd A mattress

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JPH1118867A (en) * 1997-06-30 1999-01-26 Takara Belmont Co Ltd Chair and its manufacture
FR2818187A1 (en) * 2000-12-20 2002-06-21 Cera Motor vehicle seat component made by injecting two layers of foam after positioning front and back covering layers in mould

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US8025964B2 (en) 1994-06-03 2011-09-27 Tempur World, Llc Laminated visco-elastic support
US8034445B2 (en) 1994-06-03 2011-10-11 Tempur-Pedic Management, Inc. Laminated visco-elastic support
US7707670B2 (en) 2003-10-14 2010-05-04 Tempur-Pedic Management, Inc. Pillow top for a cushion
US8418297B2 (en) 2005-06-24 2013-04-16 Tempur-Pedic Management, Llc Reticulated material body support and method

Also Published As

Publication number Publication date
DE50310033D1 (en) 2008-08-07
ITMI20022651A1 (en) 2004-06-18
ATE398950T1 (en) 2008-07-15
EP1430814A1 (en) 2004-06-23
DK1430814T3 (en) 2008-11-03
PT1430814E (en) 2008-10-08
ES2309270T3 (en) 2008-12-16

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