EP1955613B1 - Suspension spring made from plastic or a plastic composite - Google Patents

Suspension spring made from plastic or a plastic composite Download PDF

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Publication number
EP1955613B1
EP1955613B1 EP20080002393 EP08002393A EP1955613B1 EP 1955613 B1 EP1955613 B1 EP 1955613B1 EP 20080002393 EP20080002393 EP 20080002393 EP 08002393 A EP08002393 A EP 08002393A EP 1955613 B1 EP1955613 B1 EP 1955613B1
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EP
European Patent Office
Prior art keywords
longitudinal
bearing surface
crosspieces
resilient slat
crosspiece
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EP20080002393
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German (de)
French (fr)
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EP1955613A1 (en
Inventor
Siegbert Hartmann
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Individual
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Priority to EP09008515.0A priority Critical patent/EP2105068B1/en
Publication of EP1955613A1 publication Critical patent/EP1955613A1/en
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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
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A47C23/061—Slat structures
    • 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
    • A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A47C23/062—Slat supports
    • A47C23/068—Slat supports with additional supports between the ends of the slats

Definitions

  • the invention relates to a spring bar made of plastic or a plastic mixture for a slatted frame of a sitting or lying furniture, with in receiving pockets of supporting beams opposite endpoint bearings inserted insertion ends, an upwardly directed support surface and extending from the bottom downwardly extending longitudinal webs.
  • a disadvantage of this known elastic plastic strip is its relatively high weight, the large use of materials and the complex production, which is very time-consuming, costly and labor-intensive by the insertion of the reinforcing elements.
  • a spring strip made of plastic WO 92/06623 A , Made of an extruded multi-chamber hollow profile and using polyester resins so glued deck and bottom walls of glass fiber reinforced polyester resin matrix material whose production is also very expensive.
  • Another plastic strip for a slatted base or the like for a reclining furniture DE 10 004 049 379 A1 , consists of spaced apart upper and lower cover strips and arranged therebetween and selectively or areal connected spring elements and a biasing the lower cover strip tension belt and is therefore a little torsion and also requires a large amount of construction.
  • the object of the invention is to provide a spring bar available, which is considerably easier with significantly reduced material usage and still has a high load capacity and high stability with optimum suspension properties and which is also inexpensive to produce.
  • the achievable stability of the spring bar increases, with almost no contribution to increasing strength material, which would be located approximately in the region of a neutral plane, can be almost completely eliminated, which has a positive effect on the total weight to be processed amount of plastic and thus also beneficial to the economy.
  • a further optimization of the spring strip is possible by the selection of the material itself, be it from a pure plastic or a plastic mixture, which may be offset, for example with a fiber content.
  • a variation of the height of the intermediate webs thus allows the influencing of the suspension properties and the achievable stability of the spring bar in a particularly simple dimensions.
  • a one-piece spring strip can furthermore be produced in a two-part injection molding tool, with a dividing plane which is arranged approximately in the region of the support surface, so that its upwardly directed upper side in the installed state can also be provided with engravings, logos or other decorations in a simple manner can. On the use of additional sliders in the tool can be completely dispensed with, thereby further improving the efficiency of the inventive spring bar drastically.
  • the various embodiments can have a variety of forms of bearing surfaces.
  • the production as an injection molded part allows here a great freedom of design.
  • the integrally formed spring bar has a bearing surface with a single or more clergynaus2-1lessness, wherein portions of the longitudinal web or longitudinal webs extend below these proceedingsnausappelisme and the longitudinal web or longitudinal webs there have a thickness that corresponds to the width of theinstitunausappelmax.
  • such an embodiment makes it possible to dispense with the use of additional slides in the injection molding tool.
  • a plurality of such surface recesses may be arranged behind and / or next to one another, with intermediate webs extending from the undersides of the bearing surface remaining therebetween up to the longitudinal struts.
  • These intermediate webs can have further, extending transversely to the longitudinal direction support webs that support the intermediate webs to improve the torsional strength of the entire spring bar.
  • a ceremoniesnaus disorders extends with or without interruptions from one to the other insertion end of a spring bar and extending below the support surface longitudinal ridge also continuously under the surface recess, preferably straight and extending in a horizontal plane.
  • the support surface for a mattress is thereby significantly reduced, which significantly improves their breathability, so that a moisture accumulation is completely avoided in resting on the support surface mattress.
  • the very broad in this embodiment formed longitudinal web also generates a very high resistance to deflection and against rotation of the spring bar when it is claimed by the action of an obliquely from above attacking force.
  • the construction can be arranged centrally or eccentrically, transversely to the longitudinal direction extending intermediate webs in the space between the support surface and the longitudinal web, or, as in a further particularly preferred embodiment of the subject invention, longitudinally slidable hardness slider be provided, for example, in a surface recess may be guided and in some or all possible operating positions have a mechanical contact with the top of the longitudinal strut.
  • longitudinally slidable hardness slider be provided, for example, in a surface recess may be guided and in some or all possible operating positions have a mechanical contact with the top of the longitudinal strut.
  • the spring strip 1; 11; 31; 41 made of plastic or plastic mixture essentially consists of a bearing surface 9; 19 with surface recesses 4; 14 and edge-side insertion ends 5; 15 and at least one longitudinal web 2 arranged below the bearing surface 9; 12, which is integrally formed or fixed via intermediate webs 3, 13 on the underside of the bearing surface 9, 19.
  • the support surface 9, 19 has laterally narrow downwardly directed edge webs 6, 16 over its length.
  • An embodiment of the spring bar 11, as in 3 and 4 has four longitudinally arranged ceremoniesnausEnglishept 14 and a vertically extending in the longitudinal direction of the plastic strip 11 longitudinal web 12 which is integrally formed in the areas in front of the insertion 15 on the underside of the support surface 19 and in the area between theinstitunausappel 14 via intermediate webs 13th , which are supported by transverse to the longitudinal direction support webs 18, is connected thereto.
  • the spaces between them constructively generated 17 contribute to the material savings, without having a negative effect on the component strength.
  • FIG. 5 shown variant of the spring bar 31 has over the length juxtaposed surface recesses 14, so that below and spaced from the support surface 19 of the spring bar 31 two parallel longitudinal webs 12 can be formed. Versions with other parallel or arbitrarily arranged congressnausEnglishept 14 and corresponding, too different widths, long and high longitudinal webs 12 are conceivable, but not graphically represented.
  • the solicitnausnaturalung 4 extends from a Einsteckende 5 to the opposite insertion end 5 of the support surface 9, wherein the foundednaus Principleung 4 extends to the lateral edge regions of the side webs 6, whereby a very wide longitudinal web 2 can be produced, in which the upper mold of an injection mold engages through the surface recesses 4 and can produce the upper side of the longitudinal web 2 with its front side.
  • the longitudinal ridge 2 may have a middle gutter, or as in Fig. 2 represented, be connected via two lateral intermediate webs 3 with the underside of the support surface 9, which can produce a very stable spatial structure.
  • a spring strip 1 as in Fig. 1 is shown, in an embodiment as in the aforementioned spring bar 41, an integrated hardness adjustment can be provided by 9 hardening slide 8 are inserted into the space 7 between the longitudinal web 2 and the underside of the support surface 8, which can be performed in theinstitunausEnglishung 4 and / or completely surround the support surface 9.
  • 9 hardening slide 8 are inserted into the space 7 between the longitudinal web 2 and the underside of the support surface 8, which can be performed in theinstitunausEnglishung 4 and / or completely surround the support surface 9.
  • gutter 3 in particular centrally halfway along the spring bar are provided.

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

Description

Die Erfindung betrifft eine Federleiste aus Kunststoff oder einem Kunststoffgemisch für einen Lattenrost eines Sitz- oder Liegemöbels, mit in Aufnahmetaschen von an Tragholmen sich gegenüberliegend angeordneten Endpunktlagern einzuführenden Einsteckenden, einer nach oben gerichteten Auflagerfläche und sich von deren Unterseite nach unten erstreckenden Längsstegen.The invention relates to a spring bar made of plastic or a plastic mixture for a slatted frame of a sitting or lying furniture, with in receiving pockets of supporting beams opposite endpoint bearings inserted insertion ends, an upwardly directed support surface and extending from the bottom downwardly extending longitudinal webs.

Es ist eine elastische Kunststoffleiste für Lattenroste von Sitz- und Liegemöbeln bekannt, DE 42 27 187 C1 , die eine Auflagerfläche für Matratzen aufweist sowie an deren Unterseite in Leistenlängsrichtung verlaufende Verrippungsstege, die jeweils mit zusätzlichen Armierungselementen versehen sind.It is known an elastic plastic strip for slatted frames of seating and reclining furniture, DE 42 27 187 C1 , Which has a support surface for mattresses and extending at the bottom in strip longitudinal Verrippungsstege, which are each provided with additional reinforcing elements.

Nachteilig an dieser vorbekannten elastischen Kunststoffleiste ist ihr relativ hohes Gewicht, der große Materialeinsatz sowie die aufwändige Fertigung, welche durch das Einlegen der Armierungselemente sehr zeit-, kosten- und personalintensiv ist.A disadvantage of this known elastic plastic strip is its relatively high weight, the large use of materials and the complex production, which is very time-consuming, costly and labor-intensive by the insertion of the reinforcing elements.

Bekannt ist des Weiteren eine Federleiste aus Kunststoff, WO 92/06623 A , aus einem extrudierten Mehrkammerhohlprofil und mittels Polyesterharzen damit verklebten Deck- und Bodenwänden aus glasfaserverstärktem Polyesterharz-Matrixmaterial, deren Fertigung ebenfalls sehr aufwändig ist.Further known is a spring strip made of plastic, WO 92/06623 A , Made of an extruded multi-chamber hollow profile and using polyester resins so glued deck and bottom walls of glass fiber reinforced polyester resin matrix material whose production is also very expensive.

Eine andere Kunststoffleiste für einen Lattenrost oder dergleichen für ein Liegemöbel, DE 10 004 049 379 A1 , besteht aus voneinander beabstandeten oberen und unteren Deckleisten und dazwischen angeordneten und punktuell oder flächig damit verbundenen Federelementen sowie aus einem die untere Deckleiste vorspannenden Zuggurt und ist deswegen insgesamt wenig torsionsfest und erfordert zudem einen großen Bauaufwand.Another plastic strip for a slatted base or the like for a reclining furniture, DE 10 004 049 379 A1 , consists of spaced apart upper and lower cover strips and arranged therebetween and selectively or areal connected spring elements and a biasing the lower cover strip tension belt and is therefore a little torsion and also requires a large amount of construction.

Aufgabe der Erfindung ist es, eine Federleiste zur Verfügung zu stellen, die bei deutlich reduziertem Materialeinsatz erheblich leichter ist und trotzdem eine hohe Tragkraft und eine große Stabilität bei optimalen Federungseigenschaften aufweist und die zudem kostengünstig herstellbar ist.The object of the invention is to provide a spring bar available, which is considerably easier with significantly reduced material usage and still has a high load capacity and high stability with optimum suspension properties and which is also inexpensive to produce.

Die Lösung dieser Aufgabe erfolgt in Verbindung mit den Oberbegriffsmerkmalen erfindungsgemäß aus den kennzeichnenden Merkmalen des Hauptanspruchs.The solution of this object is achieved in conjunction with the preamble features according to the invention from the characterizing features of the main claim.

Mit steigendem Abstand der Längsstege von der Unterseite der Auflagerfläche erhöht sich die erzielbare Stabilität der Federleiste, wobei auf zur Festigkeitssteigerung wenig beitragendes Material, welches etwa im Bereich einer neutralen Ebene angesiedelt wäre, nahezu vollständig verzichtet werden kann, was sich positiv auf das Gesamtgewicht, die zu verarbeitende Kunststoffmenge und damit auch vorteilhaft auf die Wirtschaftlichkeit auswirkt. Eine weitere Optimierung der Federleiste ist durch die Auswahl des Materials selber möglich, sei es aus einem reinen Kunststoff oder einem Kunststoffgemisch, welches beispielsweise mit einem Faseranteil versetzt sein kann.With increasing distance of the longitudinal webs from the underside of the support surface, the achievable stability of the spring bar increases, with almost no contribution to increasing strength material, which would be located approximately in the region of a neutral plane, can be almost completely eliminated, which has a positive effect on the total weight to be processed amount of plastic and thus also beneficial to the economy. A further optimization of the spring strip is possible by the selection of the material itself, be it from a pure plastic or a plastic mixture, which may be offset, for example with a fiber content.

Eine Variation der Höhe der Zwischenstege erlaubt damit die Beeinflussung der Federungseigenschaften und der erzielbaren Stabilität der Federleiste in besonders einfachem Maße. Eine einteilige Federleiste lässt sich des Weiteren in einem zweiteiligen Spritzgusswerkzeug herstellen, mit einer Teilungsebene, die etwa im Bereich der Auflagerfläche angeordnet ist, so dass auch deren im Einbauzustand nach oben gerichtete Oberseite auf einfache Art und Weise mit Gravuren, Logos oder anderen Verzierungen versehen werden kann. Auf den Einsatz von zusätzlichen Schiebern im Werkzeug kann dabei vollständig verzichtet werden, wodurch sich die Wirtschaftlichkeit der erfinderischen Federleiste weiter drastisch verbessert.A variation of the height of the intermediate webs thus allows the influencing of the suspension properties and the achievable stability of the spring bar in a particularly simple dimensions. A one-piece spring strip can furthermore be produced in a two-part injection molding tool, with a dividing plane which is arranged approximately in the region of the support surface, so that its upwardly directed upper side in the installed state can also be provided with engravings, logos or other decorations in a simple manner can. On the use of additional sliders in the tool can be completely dispensed with, thereby further improving the efficiency of the inventive spring bar drastically.

Weitere vorteilhafte Ausgestaltungen des Gegenstandes der Erfindung ergeben sich mit und in Kombination aus den nachfolgenden Unteransprüchen.Further advantageous embodiments of the subject of the invention will become apparent with and in combination from the following subclaims.

Besonders vorteilhaft an der erfindungsgemäßen Federleiste ist zunächst, dass die verschiedenen Ausführungsformen die unterschiedlichsten Formen von Auflagerflächen aufweisen können. Die Herstellung als Spritzgussteil erlaubt hier eine weitgehende Gestaltungsfreiheit.It is particularly advantageous on the spring strip according to the invention, first, that the various embodiments can have a variety of forms of bearing surfaces. The production as an injection molded part allows here a great freedom of design.

Die einteilig ausgebildete Federleiste besitzt eine Auflagerfläche mit einer einzelnen oder mehreren Flächenausnehmungen, wobei Teilbereiche des Längssteges oder der Längsstege unterhalb dieser Flächenausnehmungen verlaufen und der Längssteg oder die Längsstege dort ein Dickenmaß aufweisen, welches maximal dem Breitenmaß der Flächenausnehmungen entspricht. Insbesondere ermöglicht es eine solche Ausgestaltung, auf den Einsatz zusätzlicher Schieber im Spritzgusswerkzeug zu verzichten.The integrally formed spring bar has a bearing surface with a single or more Flächenausnehmungen, wherein portions of the longitudinal web or longitudinal webs extend below these Flächenausnehmungen and the longitudinal web or longitudinal webs there have a thickness that corresponds to the width of the Flächenausnehmungen maximum. In particular, such an embodiment makes it possible to dispense with the use of additional slides in the injection molding tool.

Diese Flächenausnehmungen verhindern beispielsweise durch die bessere Durchlüftung einer auf den erfinderischen Federleisten aufliegenden Matratze vorteilhaft die Entstehung von Stockflecken. Ein weiterer sehr wesentlicher Vorteil solcher Flächenausnehmungen und der übrigen erfinderischen Konstruktion dieser Federleiste ist die insgesamt erzielbare Gewichtseinsparung bei jeder einzelnen Federleiste aber insbesondere beim fertigen Produkt. Dieses lässt sich während seiner Herstellung und seine Weiterverarbeitung wesentlich leichter und einfacher handhaben, ebenso wie es erhebliche Umweltvorteile mit sich bringt, da zum einen die vorhandenen Ressourcen geschützt werden und zum anderen der Transport der fertigen Waren einen geringeren Verbrauch von Transportenergie ermöglicht.These surface recesses prevent, for example, through the better ventilation of resting on the inventive spring strips mattress advantageous the formation of foxing. Another very significant advantage of such Flächenausnehmungen and the other inventive design of this spring bar is the overall achievable weight savings in each spring bar but especially in the finished product. This can be much easier and easier to handle during its manufacture and further processing, as well as it brings significant environmental benefits, since on the one hand, the existing resources are protected and on the other hand, the transport of finished goods allows a lower consumption of transport energy.

Gemäß einer besonders vorteilhaften Variante der Erfindung können mehrere solcher Flächenausnehmungen hinter- und/ oder nebeneinander angeordnet sein, wobei sich von den Unterseiten der dazwischen verbliebenen Auflagerfläche Zwischenstege bis zu den Längsstreben erstrecken. Diese Zwischenstege können zur Verbesserung der Torsionsfestigkeit der gesamten Federleiste weitere, sich quer zur Längsrichtung verlaufende Stützstege aufweisen, die die Zwischenstege abstützen.According to a particularly advantageous variant of the invention, a plurality of such surface recesses may be arranged behind and / or next to one another, with intermediate webs extending from the undersides of the bearing surface remaining therebetween up to the longitudinal struts. These intermediate webs can have further, extending transversely to the longitudinal direction support webs that support the intermediate webs to improve the torsional strength of the entire spring bar.

Entsprechend einer weiteren vorteilhaften Ausgestaltung des Gegenstandes der Erfindung erstreckt sich eine Flächenausnehmung mit oder ohne Unterbrechungen von einem bis zum anderen Einsteckende einer Federleiste und der unterhalb der Auflagerfläche verlaufende Längssteg ebenfalls durchgehend unter der Flächenausnehmung, vorzugsweise gerade und in einer horizontalen Ebene verlaufend. Die Auflagerfläche für eine Matratze wird dadurch deutlich verringert, was deren Durchlüftbarkeit wesentlich verbessert, sodass ein Feuchtigkeitsstau in einer auf der Auflagerfläche aufliegenden Matratze vollständig vermieden wird.According to a further advantageous embodiment of the subject invention, a Flächenausnehmung extends with or without interruptions from one to the other insertion end of a spring bar and extending below the support surface longitudinal ridge also continuously under the surface recess, preferably straight and extending in a horizontal plane. The support surface for a mattress is thereby significantly reduced, which significantly improves their breathability, so that a moisture accumulation is completely avoided in resting on the support surface mattress.

Der bei dieser Ausführungsform sehr breit ausgebildete Längssteg erzeugt zudem eine sehr hohe Festigkeit gegen eine Durchbiegung und gegen ein Verdrehen der Federleiste, wenn sie durch das Einwirken einer schräg von oben angreifenden Kraft beansprucht wird.The very broad in this embodiment formed longitudinal web also generates a very high resistance to deflection and against rotation of the spring bar when it is claimed by the action of an obliquely from above attacking force.

Zur weiteren Stabilisation der Konstruktion können in dem Freiraum zwischen der Auflagerfläche und dem Längssteg mittig oder außermittig, quer zur Längsrichtung verlaufende Zwischenstege angeordnet sein, oder, wie bei einer weiteren besonders bevorzugten Ausführungsform des Gegenstandes der Erfindung, längs verschiebbare Härteschieber vorgesehen sein, die beispielsweise in einer Flächenausnehmung geführt sein können und in einigen oder allen möglichen Betriebsstellungen einen mechanischen Kontakt mit der Oberseite der Längsstrebe aufweisen. Hierdurch wird in einer einzigen Federleiste, sei sie nun einteilig hergestellt oder aus mehreren Bauteilen zu einer einteiligen zusammengefügt, die Möglichkeit einer Härteverstellung verwirklicht, welche bei anderen bekannten Ausführungsformen von Kunststoff- oder Holzfederleisten nur durch die Kombination mehrerer Leisten erzeugt werden kann.To further stabilize the construction can be arranged centrally or eccentrically, transversely to the longitudinal direction extending intermediate webs in the space between the support surface and the longitudinal web, or, as in a further particularly preferred embodiment of the subject invention, longitudinally slidable hardness slider be provided, for example, in a surface recess may be guided and in some or all possible operating positions have a mechanical contact with the top of the longitudinal strut. As a result, the possibility of a hardness adjustment is realized in a single spring bar, be it made in one piece or joined together from several components, which can be produced in other known embodiments of plastic or wooden spring strips only by the combination of multiple strips.

Nachfolgend sind einige Ausführungsbeispiele der Erfindung anhand von Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
eine einteilige Federleiste mit zwei verschiebbaren Härteschiebern in einer räumlichen Ansicht,
Fig. 2
eine einteilige Federleiste mit einem breiten Längssteg in einer räumlichen Ansicht von schräg unten,
Fig. 3
eine räumliche Darstellung einer Federleiste von schräg oben,
Fig. 4
eine räumliche Ansicht der Federleiste gem. Fig. 4 von schräg unten,
Fig. 5
eine weitere Federleiste in einer räumlichen Ansicht von schräg unten,
Hereinafter, some embodiments of the invention are described in more detail with reference to drawings. Show it:
Fig. 1
a one-piece spring strip with two sliding hardness slides in a three-dimensional view,
Fig. 2
a one-piece spring bar with a wide longitudinal ridge in a spatial view obliquely from below,
Fig. 3
a spatial representation of a spring bar obliquely from above,
Fig. 4
a spatial view of the spring strip gem. Fig. 4 from diagonally below,
Fig. 5
another spring strip in a three-dimensional view from below,

Die Federleiste 1;11;31;41 aus Kunststoff oder Kunststoffgemisch besteht im Wesentlichen aus einer Auflagerfläche 9;19 mit Flächenausnehmungen 4;14 und randseitigen Einsteckenden 5;15 sowie mindestens einem unterhalb der Auflagerfläche 9;19 angeordneten Längssteg 2; 12, der über Zwischenstege 3;13 an der Unterseite der Auflagerfläche 9;19 angeformt oder festgelegt ist. Die Auflagerfläche 9;19 weist über ihre Länge seitlich schmale nach unten gerichtete Randstege 6;16 auf.The spring strip 1; 11; 31; 41 made of plastic or plastic mixture essentially consists of a bearing surface 9; 19 with surface recesses 4; 14 and edge-side insertion ends 5; 15 and at least one longitudinal web 2 arranged below the bearing surface 9; 12, which is integrally formed or fixed via intermediate webs 3, 13 on the underside of the bearing surface 9, 19. The support surface 9, 19 has laterally narrow downwardly directed edge webs 6, 16 over its length.

Eine Ausführungsform der Federleiste 11, wie sie in Fig. 3 und 4 dargestellt ist, besitzt vier in Längsrichtung angeordnete Flächenausnehmungen 14 sowie einen sich vertikal in Längsrichtung der Kunststoffleiste 11 verlaufenden Längssteg 12, der in den Bereichen vor den Einsteckenden 15 großflächig an der Unterseite der Auflagerfläche 19 angeformt ist und im Bereich zwischen den Flächenausnehmungen 14 über Zwischenstege 13, die mittels quer zur Längsrichtung verlaufenden Stützstegen 18 abgestützt sind, daran angeschlossen ist. Die dazwischen konstruktiv erzeugten Freiräume 17 tragen zur Materialeinsparung bei, ohne sich negativ auf die Bauteilfestigkeit auszuwirken.An embodiment of the spring bar 11, as in 3 and 4 has four longitudinally arranged Flächenausnehmungen 14 and a vertically extending in the longitudinal direction of the plastic strip 11 longitudinal web 12 which is integrally formed in the areas in front of the insertion 15 on the underside of the support surface 19 and in the area between the Flächenausnehmungen 14 via intermediate webs 13th , which are supported by transverse to the longitudinal direction support webs 18, is connected thereto. The spaces between them constructively generated 17 contribute to the material savings, without having a negative effect on the component strength.

Eine andere, in Fig. 5 gezeigte Variante der Federleiste 31 weist über die Länge nebeneinander angeordnete Flächenausnehmungen 14 auf, so dass unterhalb und beabstandet von der Auflagerfläche 19 der Federleiste 31 zwei parallel verlaufende Längsstege 12 ausgebildet werden können. Versionen mit weiteren parallel oder auch beliebig angeordneten Flächenausnehmungen 14 und entsprechenden, auch unterschiedlich breiten, langen und hohen Längsstegen 12 sind denkbar, aber zeichnerisch nicht dargestellt.Another, in Fig. 5 shown variant of the spring bar 31 has over the length juxtaposed surface recesses 14, so that below and spaced from the support surface 19 of the spring bar 31 two parallel longitudinal webs 12 can be formed. Versions with other parallel or arbitrarily arranged Flächenausnehmungen 14 and corresponding, too different widths, long and high longitudinal webs 12 are conceivable, but not graphically represented.

Bei einer Federleiste 41, wie sie in Fig. 2 dargestellt ist, reicht die Flächenausnehmung 4 von einem Einsteckende 5 bis zum gegenüber liegenden Einsteckende 5 der Auflagerfläche 9, wobei die Flächenausnehmung 4 sich bis zu den seitlichen Randbereichen an die Seitenstege 6 heran erstreckt, wodurch ein sehr breiter Längssteg 2 herstellbar ist, in dem das obere Werkzeug einer Spritzgussform durch die Flächenausnehmungen 4 hindurchgreift und mit seiner Stirnseite die Oberseite des Längssteges 2 erzeugen kann. Der Längssteg 2 kann über einen mittleren Zwischensteg, oder wie in Fig. 2 dargestellt, über zwei seitliche Zwischenstege 3 mit der Unterseite der Auflagerfläche 9 verbunden sein, wodurch sich ein sehr stabiles räumliches Gebilde erzeugen lässt.In a spring bar 41, as in Fig. 2 is shown, the Flächenausnehmung 4 extends from a Einsteckende 5 to the opposite insertion end 5 of the support surface 9, wherein the Flächenausnehmung 4 extends to the lateral edge regions of the side webs 6, whereby a very wide longitudinal web 2 can be produced, in which the upper mold of an injection mold engages through the surface recesses 4 and can produce the upper side of the longitudinal web 2 with its front side. The longitudinal ridge 2 may have a middle gutter, or as in Fig. 2 represented, be connected via two lateral intermediate webs 3 with the underside of the support surface 9, which can produce a very stable spatial structure.

Bei einer Ausführungsform einer Federleiste 1, wie sie in Fig. 1 dargestellt ist, kann bei einer Ausgestaltung wie bei der vorgenannten Federleiste 41 eine integrierte Härteverstellung vorgesehen werden, indem in den Freiraum 7 zwischen dem Längssteg 2 und der Unterseite der Auflagerfläche 9 Härteschieber 8 eingesetzt werden, die in der Flächenausnehmung 4 geführt sein können und/ oder die Auflagerfläche 9 vollständig umgreifen. Auch hier kann zur weiteren Stabilisierung der Federleiste 1 ein zeichnerisch jedoch nicht dargestellter Zwischensteg 3, insbesondere mittig auf halber Länge der Federleiste vorgesehen werden.In one embodiment of a spring strip 1, as in Fig. 1 is shown, in an embodiment as in the aforementioned spring bar 41, an integrated hardness adjustment can be provided by 9 hardening slide 8 are inserted into the space 7 between the longitudinal web 2 and the underside of the support surface 8, which can be performed in the Flächenausnehmung 4 and / or completely surround the support surface 9. Again, for further stabilization of the spring strip 1 a drawing, however, not shown gutter 3, in particular centrally halfway along the spring bar are provided.

Claims (5)

  1. Resilient slat made of plastics material, or a mixture of plastics, which is intended for a slatted base of a piece of furniture for sitting or lying on and is designed in one piece, having plug-in ends (5;15), which can be introduced into accommodating pockets of end-point bearings arranged opposite one another on carrying members, having a slightly arcuately upwardly directed bearing surface (9;19), and having longitudinal crosspieces (2;12) extending downwards from the underside of the bearing surface, wherein at least one longitudinal crosspiece (2;12) extends downwards, and the longitudinal crosspiece (2;12) or the longitudinal crosspieces (2;12) is/are spaced apart from the underside of the bearing surface (9;19) and is/are connected thereto via intermediate crosspieces (3;13), characterized in that the resilient slat (1;11;31;41) has a bearing surface (9;19) with one or more surface apertures (4;14), and sub-regions of the longitudinal crosspiece (2;12) or of the longitudinal crosspieces (2;12) run beneath the same, these sub-regions having a thickness there which corresponds, at most, to the width of the surface aperture (4;14).
  2. Resilient slat according to Claim 1, characterized in that it has surface apertures (4;14) in its bearing surface (9;19), and a plurality of surface apertures (4;14) are formed one behind the other and/or one beside the other in the bearing surface (9;19), and intermediate crosspieces (3;13) extend to the longitudinal crosspieces (2;12) from the undersides of the bearing surfaces (9;19) remaining between said surface apertures.
  3. Resilient slat according to one of the preceding claims, characterized in that the surface apertures (4;14) extend, with or without interruptions, from one plug-in end (5;15) to the other plug-in end (5;15), and the longitudinal crosspiece (2;12) extends continuously in rectilinear fashion in a horizontal plane.
  4. Resilient slat according to Claim 3, characterized in that intermediate crosspieces (3;13), which are arranged to run transversely centrally and/or eccentrically, connect the longitudinal crosspiece (2;12) to the bearing surface (9;19) of the resilient slat (1;11;31;41).
  5. Resilient slat according to one of the preceding claims, characterized in that longitudinally displaceable hardness slides (8) are inserted in a free space (7;17) between the underside of the bearing surface (9;19) and the upper side of the longitudinal crosspiece (2;12).
EP20080002393 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite Not-in-force EP1955613B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09008515.0A EP2105068B1 (en) 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200720002219 DE202007002219U1 (en) 2007-02-12 2007-02-12 Plastic springy strip for a slatted frame on a piece of furniture like a seat or a reclining chair has plug-in ends to insert in holding pouches, a supporting surface and longitudinal stays

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP09008515.0A Division EP2105068B1 (en) 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite
EP09008515.0 Division-Into 2009-06-30

Publications (2)

Publication Number Publication Date
EP1955613A1 EP1955613A1 (en) 2008-08-13
EP1955613B1 true EP1955613B1 (en) 2013-04-24

Family

ID=38056491

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20080002393 Not-in-force EP1955613B1 (en) 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite
EP09008515.0A Not-in-force EP2105068B1 (en) 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09008515.0A Not-in-force EP2105068B1 (en) 2007-02-12 2008-02-08 Suspension spring made from plastic or a plastic composite

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EP (2) EP1955613B1 (en)
DE (1) DE202007002219U1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012580U1 (en) 2007-09-07 2007-11-22 Akpinar, Sennan Slatted bar
DE202008015963U1 (en) 2008-12-03 2009-03-12 Oke Group Gmbh Spring strip made of plastic for a slatted frame
BE1022380B1 (en) 2014-03-17 2016-03-18 Custom8 Nv SLEEPING SYSTEM
TW201609024A (en) 2014-04-24 2016-03-16 雅詩立傢俱工業公司 Drop in seat deck for furniture assemblies
DE202015106032U1 (en) * 2015-11-10 2016-10-12 Recticel Schlafkomfort Gmbh Spring strip for a seat or Liegemöbelunterfederung and spring suspension with at least one such spring bar

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE422717C (en) 1925-12-12 Bertha Kaiser Abdominal bandage in the form of a rodless corset
ES2000149A6 (en) * 1986-10-29 1987-12-16 Codima Spring mattress strip
WO1992006623A1 (en) 1990-10-11 1992-04-30 Iloma Automatisierungstechnik Gmbh Resilient frame made of synthetic material
DE4227187C1 (en) * 1992-08-17 1993-09-23 Lorenz Kunststofftechnik Gmbh, 48496 Hopsten, De Elastic plastic strip as slat in chair or recliner base - has ridges on underside spaced apart by troughs wider than tops incorporating reinforcements
DE9409812U1 (en) * 1994-06-17 1995-10-19 Hartmann, Siegbert, 32584 Löhne Device for adjusting the hardness of spring slats stored in a slatted bed base
ATE195229T1 (en) 1995-03-22 2000-08-15 Thomas Beteil & Vermoeg Gmbh SPRING BRIDGE FOR AN UNDER MATTRESS
DE102004049379A1 (en) 2004-10-09 2006-04-13 Börger, Herbert, Dr. Ing. Plastic border for slat grill of couch has springs disposed between upper and lower cover strips

Also Published As

Publication number Publication date
EP2105068A1 (en) 2009-09-30
DE202007002219U1 (en) 2007-05-10
EP1955613A1 (en) 2008-08-13
EP2105068B1 (en) 2013-10-09

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