EP1557116B1 - Coussin avec éléments ressort repartis au sein de la sufrace - Google Patents

Coussin avec éléments ressort repartis au sein de la sufrace Download PDF

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Publication number
EP1557116B1
EP1557116B1 EP04001152A EP04001152A EP1557116B1 EP 1557116 B1 EP1557116 B1 EP 1557116B1 EP 04001152 A EP04001152 A EP 04001152A EP 04001152 A EP04001152 A EP 04001152A EP 1557116 B1 EP1557116 B1 EP 1557116B1
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EP
European Patent Office
Prior art keywords
nonwoven
springs
layers
chambers
cushion
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.)
Expired - Lifetime
Application number
EP04001152A
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German (de)
English (en)
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EP1557116A1 (fr
Inventor
Diana Zschoch
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Individual
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Individual
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Publication date
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Priority to EP04001152A priority Critical patent/EP1557116B1/fr
Priority to ES04001152T priority patent/ES2278234T3/es
Priority to DE502004002167T priority patent/DE502004002167D1/de
Priority to US11/189,557 priority patent/US20070022538A1/en
Publication of EP1557116A1 publication Critical patent/EP1557116A1/fr
Application granted granted Critical
Publication of EP1557116B1 publication Critical patent/EP1557116B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/002—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
    • 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
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • 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
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • 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
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • A47C27/063—Spring inlays wrapped or otherwise protected
    • A47C27/064—Pocketed springs

Definitions

  • the invention relates to a cushion with distributed over the surface of the pad spring elements or springs, which are individually or in groups enclosed in chambers with walls of nonwoven fabric and guided, with upper and lower, extending over the surface of the pad, the end faces of the spring elements or springs overlapping cover layers and with stabilizing connections between the adjacent chambers on the one hand and between the chambers and the cover layers on the other.
  • the spring elements or elastic molded parts are regularly made of foams, while the supporting and the spring elements connecting structural element is preferably a plastic grid.
  • the thus configured spring unit is regularly covered parallel to the pad surface on both sides by cover layers, so that a pad with a closed surface is formed. If the peripheral area of the lying surface is also covered and fixed, we speak of a spring mattress.
  • DE 40 42 304 describes a procedure for wrapping the compression springs and their mutual connection with adjacent spring covers.
  • Nonwoven fabric strips or fabrics are used to prepare chains with chambers for several springs.
  • the chambers are separated by seams which are aligned parallel to the axis of the springs.
  • Neighboring chains are mechanically interconnected. Slots for inserting the springs are provided parallel to the seams.
  • a disadvantage of this type of upholstery production is the extremely high cost of producing the casings for the springs and for the connection of the Covering each other in the area. Problems also brings the insertion of the springs in the pockets. This process can be realized automatically either manually or with an extremely high technical effort.
  • This sound absorber consists of a fleece material.
  • This nonwoven material is pressed by embossing elements in a honeycomb structure. In the area of the honeycomb walls, the nonwoven fabric is highly compressed while it is looser and partially elastic in the area of the cavities.
  • the nonwoven fabric is formed so that the fibers contained therein are oriented transversely to the base of the nonwoven material.
  • This fleece can also be covered from the top and from the bottom with a further fleece layer.
  • the lower cover layer should preferably be formed as a vapor diffusion barrier.
  • a gas-permeable rigid sandwich structure is known in which a honeycomb-shaped support structure is provided in the central region, which are covered at the top and at the bottom by cover layers of nonwoven fabric and finally outside with filter fabric.
  • the cover layers are connected by means of adhesive to the end faces of the support structure.
  • the support structure consists either of an open-cell foam core or has a honeycomb-like structure made of duromer or thermoplastic material.
  • Such a structure is suitable for the production of rigid structures. It has a high stability with a low mass. However, it is not due to lack of spring properties in a large depth range for upholstery u. Like. Suitable.
  • the object of the present invention is to make a cushion with distributed over the surface spring elements or springs with almost the same spring properties in a large depth range (Eind Wegiefe of the pad) so that the production of the chambers for the spring elements or springs and their interconnected streamlines and can be automated if necessary. At the same time, the insertion of the spring elements or springs should be simplified.
  • the embodiment according to claim 5 makes it possible to reduce the depth of the bulges in the nonwoven layers and still use springs or spring elements of great height without having to take disadvantages in terms of positioning of the springs under load purchase.
  • the pad according to independent claim 8 dispenses with the enclosing of the spring elements or springs with nonwoven fabric.
  • the bulges engage for the purpose of guiding the spring elements or springs in the frontal openings of the same. This allows a limited depth of the bulges and facilitates the assembly of the springs in the upholstery.
  • the filling of the cavities according to claim 9 stabilizes bulges and thus the position of the springs in the upholstery.
  • the method according to claim 10 for the production of a nonwoven fabric with bulges distributed in the area has the advantage that the fibers required for the bulges can be pulled out of the area of the supplied nonwoven fabric.
  • the walls of the chambers are thus sufficiently stable and the depth of the bulges is virtually unlimited, taking into account the usual pad thicknesses.
  • the upholstery fabric according to FIG. 1 consists of two nonwoven layers 1, 2. These nonwoven layers 1, 2 are formed by deep-drawing tools or embossing tools in such a way that they preferably have circular bulges 12, 22 distributed uniformly over the cushion surface in the base surface.
  • the foot portions of the bulges 12, 22 are connected to each other by so-called. Connecting sections 15, 25. It is essentially the parts of the nonwoven that remain in the plane of the flat nonwoven or nonwoven fabric presented as the starting material.
  • connection 71 By means of this connection 71, chambers K1 are created, into which springs 5 in the form of cylindrical compression springs with a flat spring characteristic are inserted before the connection process.
  • the head regions of the bulges 12 of the nonwoven layer 1 are connected to a first, upper cover layer 31 and the head sections of the bulges 22 of the lower nonwoven layer 2 to the cover layer 32. This is expediently carried out by means of sewing or adhesive connection 72.
  • the lower cover layer 32 is preferably provided with different thicknesses. In the area of the smaller bulges 22 ', the lower cover layer 32' is reinforced.
  • the upholstery according to FIG. 3 has upwardly directed bulges 12 for receiving elastic filling elements 63.
  • the downwardly directed openings of the bulges 12 are closed by an intermediate layer 4.
  • the filling elements 63 in the bulges 12 of the first nonwoven layer can be introduced in different amounts, so that a supporting effect z. T. only after a major deformation of the cover layer 31 is effective.
  • a second formed nonwoven layer 2 is provided below this first nonwoven layer 1.
  • the intermediate layer 4 assumes the function of the cover layer 32 here.
  • the connection sections 15 of the first nonwoven layer 1 are connected to the connection sections 25 of the second nonwoven layer 2 via the intermediate layer 4 by connections 74.
  • the head portions of the bulges 12, 22 of the nonwoven layers 1, 2 are each connected to an adjacent cover layer 31, 32.
  • FIGS. 4 to 8 describe pads with a smaller cushion thickness. This bypasses the difficulties in the three-dimensional forming of nonwoven materials in that only dome-shaped bulges 13, 23 are produced on the nonwoven layers 1, 2.
  • FIGS. 6 to 8 A different type of connection is shown in FIGS. 6 to 8.
  • the dome-shaped nonwoven layers 1, 2 are connected directly to their connecting sections 15 and 25 after the springs 53 or elastic spring elements 61 or the springs 53 and 54, respectively, into the chambers K6, K7, K8 were used.
  • the connection of the head portions of the bulges 13, 23 with their outer layers 31, 32 is carried out regularly in a final operation.
  • the shape of the spring elements 6 or springs 5 can be chosen differently.
  • Fig. 6 we see a ballförm iges spring element 61.
  • the spring 53 consists of a spherically shaped coil spring with a large spring travel.
  • Fig. 8 between the individual nonwoven layers 1 and 2, an intermediate layer 4 provided.
  • K8o and K8u is a wire crown-shaped spring 54th
  • Figures 9 and 10 show examples in which the bulges 14, 24 are designed approximately semicircular in the head area. Between the thus-designed head portion and the connecting portions 15, 25, we find stretched portions which may be slightly conical or cylindrical in orientation. In the resulting, approximately elliptically shaped chambers K9 and K10 different elastic spring elements 61, 63 and / or springs 5 can be introduced. In addition to the illustrated examples in the form of balls 61 or balls 63, these may also be springs which are similar to the spring 53 in Fig. 7 are designed.
  • FIG. 12 shows yet another example of a padding in which the shaped nonwoven layers 1, 2 are anchored with their connecting sections 15, 25 to the cover layers 31, 32 at 76.
  • fillers in the form of elastic balls 63 are used as bulk material with distancing function. Instead of the balls of bulk material and moldings 65 can be used.
  • the webs 81 may be flexible plastic wires which are provided with fused heads for the purpose of their reliable anchoring to the connecting portions 15, 25. As a rule, these wire-shaped webs 81 are aligned perpendicular to the nonwoven layers. To improve the positional stability esp. Of the upper nonwoven layer 1 in the horizontal direction, it is expedient to provide even diagonally arranged webs 81.
  • the waisted springs 51 are first used in the horizontal direction. After pivoting the bulges 11 and 21, the web 81 is preferably introduced by means of a hollow needle. After placing force distributors (eg washers) on the connecting portions 25 and 15, the ends of the plastic wire are fused in the predetermined position to heads, so that a sufficiently firm cohesion between the upper and lower nonwoven layer 1, 2 is given.
  • force distributors eg washers
  • cover layers 31 and 32 are then applied and the connections 72 between the head sections of the bulges 11, 21 and the cover layers 31, 32 produced.
  • FIG. 13 another form of a web 8 is shown.
  • This web 82 consists of a flexible hollow body in the form of a hose.
  • the connection 78 with the Connecting portions 15 and 25 of the nonwoven layers produced. For this purpose, you can stretch this hose during installation over a rail and then position this unit between two rows of springs.
  • the guide rail can be removed again and the web 82 has its original flexibility.
  • FIG. 17 shows another form of upholstery fabric.
  • the preferably dome-shaped bulge 13 here has dimensions such that the springs 5 can be slipped over them on the outside and thereby obtain their positioning guidance.
  • the connecting portions 15 are located here in the plane of the end faces of the springs 5.
  • the webs 81 ' are slightly longer.
  • the compounds can be arranged in slight depressions.
  • the cavities K17o and K17u enclosed by them can be filled with granules or with spring elements 63 made of foam or fleece.
  • FIG. 17 additionally shows a wire-shaped web 81 "which connects the vertexes of the bulges 13 to one another via force distributors at the connections 79.
  • These webs 81" can be used exclusively or together with webs 81 'the upper one with the lower one Nonwoven layer 1, 2 connect. It is also conceivable, with appropriate design of the dimensions of the bulges 13 and / or the springs 5, the apex of the bulges 13 to connect directly to each other.
  • the upper and lower upholstery Frame Ro, Ru assign. These frames Ro, Ru are braced with each other as shown in FIG. 18 by diagonally tensioned traction means or webs 83, so that lateral drifting of the upper or lower frame Ro, Ru is prevented.
  • FIGS. 15 and 16 the most essential components of a device are described, which in particular can produce a nonwoven layer with the bulges 12, 22 which are suitable for receiving springs 5 or 6.
  • the device shown in Fig. 15 and in Fig. 16 is mainly intended for such bulges 12, 22, are used in the springs 5 according to Figures 1 to 3.
  • the nonwoven fabric 1 fed in a web consists predominantly of fibers which are aligned in the longitudinal direction of the web.
  • the length of these fibers is preferably more than 70 mm.
  • Another but smaller proportion of fibers is transversely oriented and regularly has shorter staple lengths.
  • the stamp for the production of the bulge is formed in two parts in the embodiment of FIG.
  • the first part of this stamp ST is moving down as soon as the die M1 has assumed the working position and the presser bar D clamps the fleece in the region of connecting sections 15. If this stamp ST has reached its lowest position, the second stamp ST1 follows and forms the bulges 11 in their final form.
  • the supplied fleece is less loaded in the region of the bulges.
  • the walls of the bulges 11 become thicker and firmer.
  • more or less bulging fleece dips 151 are formed between adjacent bulges. These fleece compressions 151 are to secure the overall structure of the fleece layer as possible in the form that they possess in the shaping process.
  • this is done by applying an adhesive tape B, which is subtracted from a tape storage BS and pressed by the pressure roller BD on the non-woven bump 151. This ensures that the molded nonwoven produced in this way does not deform before the final assembly of the cover layers 31, 32.
  • the release of the punch ST, ST1 from the bulge 11 can be supported by suction shoes in the lower region of the bulge.
  • the bulges 11 can be moved smoothly in the working direction, the rear in the direction of movement of the die M1 is vertically movable. It can be brought into a lower rest position M1 ', so that the bulge 11 can be moved without resistance in the working direction.
  • the nonwoven layer 1 formed with this device can be fixed by applying or introducing curable substances, so that after completion of the curing process dimensionally stable nonwoven layers 1, 2 are available for mounting the pad.
  • the textile material used for this application may consist of any form of natural fibers, synthetic fibers or corresponding mixtures. It is also possible to use recycled material for this fleece.
  • connections between the front designated portions 15, 25 of the nonwoven layers 1, 2 and the cover or intermediate layers can be prepared in various known ways.
  • the spring elements 6 used are preferably hollow body made of an elastic, flexible material. Spheres or differently designed bulk material of more or less elastic material have less the property of the springs than the property of flexible fillers, which as a whole rather have a cushioning effect on the upholstery.
  • the springs 5 have already been described in relation to the individual embodiments. Common to all springs 5, that they apply over a large spring travel almost equal support forces that during deformation if possible no material or no part of the spring 5 must escape laterally and that in the area of the springs 5 a good ventilation is ensured.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Rembourrage
    avec des éléments élastiques (6) ou des ressorts (5), répartis sur la surface du rembourrage, qui individuellement ou par groupes sont entourés et guidés par des chambres (K) avec des parois en tissu de nappes de fibres,
    avec des couches de protection supérieures et inférieures (31, 32) s'étendant sur la surface du rembourrage, chevauchant les faces frontales des éléments élastiques (6) ou des ressorts (5),
    avec des liaisons de stabilisation (7) entre les chambres (K) voisines d'une part (K) et entre les chambres (K) et les couches de protection (31, 32) d'autre part,
    le tissu de nappes de fibres formant les parois des chambres (K) et des parties de la liaison (7) étant composé d'au moins une couche de fibres (1, 2) qui en formant des sections de liaison (15, 25) s'étend entre les chambres (K) à la parallèle des couches de protection (31, 32) et qui pour former les parois des chambres (K) ou des parties de ces dernières est munie de voussures (11, 12, 13, 14 ; 21, 22, 23, 24) embouties et/ou moulées par compression et
    les sections de liaison (15, 25) et ou les sections de tête des voussures (11, 12, 13, 14 ; 21, 22, 23, 24) de la couche de fibres (1 ; 2) étant fixées par des liaisons (7) sur l'une des couches de protection (31, 32), sur une couche intermédiaire ou sur des sections de liaison (25, 26) d'une couche de fibres (2 ; 1) supplémentaire.
  2. Rembourrage selon la revendication 1, caractérisé en ce que
    les voussures (11, 12, 13, 14 ; 21, 22, 23, 24) ont une profondeur différente par zones.
  3. Rembourrage selon la revendication 1, caractérisé en ce que
    pour la création des parois de chambres et des liaisons entre les chambres (K), on a prévu deux couches de fibres voisines (1, 2) dont les voussures (11, 12, 13, 14 ; 21, 22, 23, 24) sont orientées à l'opposée et dont les sections de liaison (15 ; 25) sont reliées entre elles par l'intermédiaire d'une couche intermédiaire (4).
  4. Rembourrage selon la revendication 1, caractérisé en ce que
    pour la création des parois de chambres et des liaisons (15, 25) entre les chambres (K), on a prévu deux couches de fibres voisines (1, 2) dont les voussures (11, 12, 13, 14 ; 21, 22, 23, 24) sont orientées à l'opposée et dont les sections de liaison (15 ; 25) sont directement reliées entre elles et
    en ce que dans les chambres (K1, K6, K7) se formant entre les voussures (11, 12, 13, 14 ; 21, 22, 23, 24) des deux couches de non-tissé (1, 2) sont disposés des éléments de remplissage (6) conçus en monobloc ou des ressorts (5).
  5. Rembourrage selon la revendication 1, caractérisé en ce que
    pour la création des parois de chambres et des liaisons (15, 25) entre les chambres (K), on a prévu deux couches de non-tissé voisines (1, 2), dont les voussures (11, 12, 13, 14 ; 21, 22, 23, 24) sont orientées à l'opposé et dont les sections de liaison (15 ; 25) sont reliées entre elles par des listels (8, 81, 82).
  6. Rembourrage selon la revendication 1 et 5, caractérisé en ce que
    les listels (8) sont des éléments flexibles (81) sous forme de fils ou de fils métalliques qui maintiennent l'une contre l'autre les sections de liaison (15 ; 25) des deux couches de non-tissé (1, 2) par l'intermédiaire de liaisons (77).
  7. Rembourrage selon la revendication 1 et 5, caractérisé en ce que
    les listels (82) sont des éléments tubulaires en textile ou flexibles, dont l'axe longitudinal s'étend à la parallèle d'au moins une rangée de ressorts (5) ou d'éléments de remplissage élastiques (6) et
    les éléments tubulaires des listels (82) sont fixés dans la zone de chaque fois l'une de leurs lignes d'enveloppe opposées sur la couche de fibres supérieure ou inférieure (1 ; 2) au moyen d'une liaison par couture ou par collage (78).
  8. Rembourrage
    avec des éléments élastiques (6) ou des ressorts (5), répartis sur la surface de rembourrage, qui sont guidés individuellement sur des parois en matière en fibres,
    avec des couches de protection supérieures et inférieures (31, 32) s'étendant sur la surface de rembourrage, chevauchant les faces frontales des éléments élastiques (6) ou des ressorts (5),
    avec des liaisons de stabilisation (7) entre les éléments guidant les ressorts voisins (5) d'une part et entre la matière en fibres (1, 2) et les couches de protection (31, 32) d'autre part,
    la matière en fibres formant les parois et des parties des liaisons (7) étant composé d'au moins une couche de fibres (1, 2) qui en formant des sections de liaison (15, 25) s'étend entre les parois, à la parallèle des couches de protection (31, 32) et qui pour former les guidages pour les éléments élastiques (6) ou les ressorts (5) est munie de voussures (11, 12, 13, 14 ; 21, 22, 23, 24) embouties et/ou moulées par compression,
    les voussures (13) s'engageant dans des espaces intérieurs des éléments élastiques (6) ou des ressorts (5) disposés sur la face frontale et
    les sections de liaison (15, 25) et/ou les sections de tête des voussures (11, 12, 13, 14 ; 21, 22, 23, 24) de la couche de fibres (1 ; 2) étant fixées par des liaisons (7) sur l'une des couches de protection (31, 32), sur une couche intermédiaire, sur des sections de liaison (15, 25) ou sur des sections de tête des voussures (11, 12, 13, 14 ; 21, 22, 23, 24) d'une couche de fibres (2 ; 1) supplémentaire.
  9. Rembourrage selon la revendication 8, caractérisé en ce que
    les cavités délimités par les voussures (13) sont remplies de granulés ou d'éléments élastiques en mousse synthétique.
  10. Procédé de fabrication d'une matière en fibres avec des voussures réparties sur la surface, à partir d'une bande de fibres, caractérisé en ce
    qu'on alimente dans le sens de travail une bande de fibres qui comporte en majeure partie des fibres alignées à la parallèle du sens de travail et, dans une plus faible quantité, des fibres alignées à la transversale par rapport à ces dernières,
    qu'un poinçon (ST) mobile, orienté à la transversale du sens de travail façonne par séquences successives selon le principe de tricotage chaque fois une rangée de voussures,
    qu'on fixe sur les sections de liaison (15), au moins au moyen d'une matière durcissable à effet adhésif au moins les refoulements de fibres (151) naissant entre deux voussures façonnées.
EP04001152A 2004-01-21 2004-01-21 Coussin avec éléments ressort repartis au sein de la sufrace Expired - Lifetime EP1557116B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04001152A EP1557116B1 (fr) 2004-01-21 2004-01-21 Coussin avec éléments ressort repartis au sein de la sufrace
ES04001152T ES2278234T3 (es) 2004-01-21 2004-01-21 Colchon con elementos elasticos o muelles distribuidos por la superficie del colchon.
DE502004002167T DE502004002167D1 (de) 2004-01-21 2004-01-21 Polster mit über die Fläche des Polsters verteilten Federelementen oder Federn
US11/189,557 US20070022538A1 (en) 2004-01-21 2005-07-26 Upholstery with spring elements or springs distributed over the area of the upholstery

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04001152A EP1557116B1 (fr) 2004-01-21 2004-01-21 Coussin avec éléments ressort repartis au sein de la sufrace
US11/189,557 US20070022538A1 (en) 2004-01-21 2005-07-26 Upholstery with spring elements or springs distributed over the area of the upholstery

Publications (2)

Publication Number Publication Date
EP1557116A1 EP1557116A1 (fr) 2005-07-27
EP1557116B1 true EP1557116B1 (fr) 2006-11-29

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EP04001152A Expired - Lifetime EP1557116B1 (fr) 2004-01-21 2004-01-21 Coussin avec éléments ressort repartis au sein de la sufrace

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US (1) US20070022538A1 (fr)
EP (1) EP1557116B1 (fr)
DE (1) DE502004002167D1 (fr)
ES (1) ES2278234T3 (fr)

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US11076705B2 (en) * 2014-05-30 2021-08-03 Sealy Technology, Llc Spring core with integrated cushioning layer
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GB201708635D0 (en) * 2017-05-31 2017-07-12 Hs Products Ltd Pocketed spring unit and method manufacture
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US20210298486A1 (en) * 2020-03-25 2021-09-30 L&P Property Management Company Pocketed Spring Assembly

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DE502004002167D1 (de) 2007-01-11
EP1557116A1 (fr) 2005-07-27
US20070022538A1 (en) 2007-02-01

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