EP2789266A2 - Spring core, in particular Bonnell spring core - Google Patents

Spring core, in particular Bonnell spring core Download PDF

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Publication number
EP2789266A2
EP2789266A2 EP20140162770 EP14162770A EP2789266A2 EP 2789266 A2 EP2789266 A2 EP 2789266A2 EP 20140162770 EP20140162770 EP 20140162770 EP 14162770 A EP14162770 A EP 14162770A EP 2789266 A2 EP2789266 A2 EP 2789266A2
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EP
European Patent Office
Prior art keywords
spring
springs
spring core
wire
rows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20140162770
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German (de)
French (fr)
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EP2789266B1 (en
EP2789266A3 (en
Inventor
Wolfgang Grothaus
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Agro Holding GmbH
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Agro Holding GmbH
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Publication of EP2789266A2 publication Critical patent/EP2789266A2/en
Publication of EP2789266A3 publication Critical patent/EP2789266A3/en
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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
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A47C23/16—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type of plane meandering type
    • 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
    • A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
    • A47C23/05—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units
    • A47C23/0507—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units using tensioned spiral springs
    • 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
    • A47C23/30—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using combinations of springs covered by more than one of the groups A47C23/04, A47C23/06 and A47C23/12; Frames therefor
    • 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
    • A47C27/065—Spring inlays of special shape

Definitions

  • the invention relates to a spring core, in particular a Bonnell spring core according to the preamble of claim 1.
  • Such spring cores form a basic component for upholstery or mattresses, which in turn find use in a wide variety of areas.
  • the spring core with appropriate u.a. coated layers of textile material, in order to achieve a sufficient level of comfort.
  • the individual springs are helically wound waisted, the spring rows are immediately adjacent to each other, so that each wire helix, the individual springs of two adjacent spring rows are connected. That is, the individual springs of adjacent rows as well as the individual springs of a row are relatively close together with their end rings, especially to create a corresponding bearing surface.
  • the invention has for its object to further develop a spring core of the generic type so that it is cheaper to produce and its usability is improved.
  • a trained in this sense spring core is characterized first of all by the fact that the proportion of individual feathers can be reduced to a significant extent. As has been shown, the material savings can be more than 15%, which naturally results in lower production costs.
  • flat springs are arranged between the individual springs and / or the spring rows, which can be designed differently.
  • this flat spring In an arrangement between the spring rows replaces a continuous flat spring a complete row of springs, this flat spring consists of a meandering curved wire, which is connected to the wire helixes, as well as the edge of a frame comprising the spring core, when the leaf spring forms the last spring row of the spring core ,
  • connection of the flat spring to the wire helix is partial, i. only at certain intervals of the meandering arches formed.
  • This arrangement of the flat springs allows easier bending of the spring core or the finished mattress or padding along a spring row, so that the usability of the new spring core is improved.
  • the distance between the individual springs is increased accordingly, this distance is determined by the desired suspension comfort and the shape of the flat spring, both with the adjacent individual springs as well as with the wire coil connected is.
  • the course of the flat spring also formed from a bent wire can be designed differently.
  • each individual spring in the sense of a cantilever which projects beyond the circular course of the end ring and with which the individual spring is connected to the wire helix.
  • this boom is designed so that it also forms a support.
  • the distance between the parallel wire coils increases, which determines the width of the spring row. This measure also contributes significantly to a material saving and thus to a reduction in costs.
  • the cantilevers of the individual springs can be designed so that, preferably made of plastic support plates are used, which are held positively and in addition to a support function also protects the subsequently applied fabric from sharp points or edges of the deformed cantilever forms.
  • FIG. 1 a spring core is shown, with a plurality of, each consisting of several, both sides of end rings 5 shaped individual springs 2 existing, mutually parallel rows of springs 1, wherein the individual springs 2 each spring row 1 are connected by connected to the end rings 5 wire coil 4.
  • the spring rows 1 are arranged transversely to the longitudinal extent of the spring core.
  • FIGS. 1 and 2 between the spring rows 1 flat springs 3 arranged, each consisting of a meander-shaped bent wire and extending over the entire length of the spring row 1 shown.
  • the attachment of the flat springs takes place here by connecting with the wire coils 4 adjacent on both sides, with flat springs 3 being provided on both sides, that is to say on the sides forming the upper and lower sides of the spring core.
  • the flat springs 3 are preferably dimensioned in their width corresponding to the diameter of the end rings 5 of the individual springs 2.
  • FIGS. 3 and 4 in each case an example of the second alternative according to the invention is shown, after which two flat springs 3 are arranged between the individual springs.
  • each flat spring 3 which is also bent from wire, shaped approximately cross-shaped and with their ends of the so to speak Crossbar connected to the associated individual springs 2, while the longitudinal beam is attached at one end to the associated wire helix 4 and the opposite end is formed as an outwardly directed arc.
  • the flat spring 3 connects the two adjacent individual springs 2 on the one hand and fills a gap between the two individual springs 2.
  • the flat spring 3 is formed in the broadest sense in the manner of a ⁇ , wherein the two ends engage the end rings 5 of the adjacent individual springs 2 or are suspended there, while the lower legs of the flat spring 3 are connected to the wire helix 4.
  • the individual feathers 2, of which in each case a variant in the Figures 5 and 6 can be seen as a detail, 5 are formed in the region of their end rings as a boom 6, which have a substantially G-shaped or a mirror image to it extending contour, both arms 6, as in the FIGS. 5 and 6 is clear, are aligned in opposite directions.
  • the respective free end of the boom 6 is in the in the FIG. 6 shown example formed as a hook 7, in which a support plate 8 is held in a form-fitting, wherein for clarity, only the upper arm 6 is equipped with a support plate 8, while the lower arm 6, the hook 7 without support plate 8 reproduces.

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  • Springs (AREA)

Abstract

Ein Federkern, mit einer Vielzahl von, jeweils aus mehreren, beidseitig zu Endringen (5) geformten Einzelfedern (2) bestehenden, parallel zueinander verlaufenden Federreihen (1), wobei die Einzelfedern (2) jeder Federreihe (1) durch an den Endringen (5) angeschlossene Drahtwendel (4) miteinander verbunden sind, ist so ausgebildet, dass zwischen den Einzelfedern (2) und/oder den Federreihen (1) Flachfedern (3) angeordnet sind, die mit den Drahtwendeln (4) und/oder den Endringen (5) der Einzelfedern (2) verbunden sind.A spring core, with a plurality of, each of a plurality, on both sides to end rings (5) shaped individual springs (2) existing parallel spring rows (1), wherein the individual springs (2) each spring row (1) by at the end rings (5 ) connected wire helix (4) are interconnected, is formed so that between the individual springs (2) and / or the rows of springs (1) flat springs (3) are arranged, which with the wire coils (4) and / or the end rings (5 ) of the individual springs (2) are connected.

Description

Die Erfindung betrifft einen Federkern, insbesondere einen Bonnell-Federkern gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a spring core, in particular a Bonnell spring core according to the preamble of claim 1.

Derartige Federkerne bilden eine Grundkomponente für Polster oder Matratzen, die wiederum in unterschiedlichsten Bereichen Verwendung finden.Such spring cores form a basic component for upholstery or mattresses, which in turn find use in a wide variety of areas.

Üblicherweise wird der Federkern mit entsprechenden u.a. aus textilem Material bestehenden Lagen ummantelt, um einen ausreichenden Liegekomfort zu erreichen.Usually, the spring core with appropriate u.a. coated layers of textile material, in order to achieve a sufficient level of comfort.

Bei dem bekannten Federkern, namentlich dem Bonnell-Federkern, dessen Einzelfedern tailliert schraubenförmig gewunden sind, liegen die Federreihen unmittelbar benachbart aneinander, so dass mit jeweils einem Drahtwendel die Einzelfedern zweier benachbarter Federreihen miteinander verbunden werden. D.h., die Einzelfedern benachbarter Reihen ebenso wie die Einzelfedern einer Reihe liegen mit ihren Endringen relativ eng beieinander, vor allem auch, um eine entsprechende Auflagefläche zu schaffen.In the known spring core, namely the Bonnell spring core, the individual springs are helically wound waisted, the spring rows are immediately adjacent to each other, so that each wire helix, the individual springs of two adjacent spring rows are connected. That is, the individual springs of adjacent rows as well as the individual springs of a row are relatively close together with their end rings, especially to create a corresponding bearing surface.

Naturgemäß ist eine solche Konstruktion nur mit einem entsprechend hohen Materialeinsatz realisierbar, der die Herstellungskosten eines Federkerns ungünstig beeinflusst und einer stets geforderten Kostenoptimierung entgegensteht.Naturally, such a construction can be realized only with a correspondingly high use of material, which adversely affects the manufacturing costs of a spring core and precludes always required cost optimization.

Überdies ist die Verwendung eines solchen Federkerns insofern problematisch, als dessen Verstellen, d.h. der fertigen Matratze im Sinne eines bereichsweisen Knickens entlang einer Federreihe, wenn überhaupt, dann nur eingeschränkt möglich ist.Moreover, the use of such a spring core is problematic in that its adjustment, i. the finished mattress in the sense of a regional kinking along a spring row, if at all, then only limited possible.

Der Erfindung liegt die Aufgabe zugrunde, einen Federkern der gattungsgemäßen Art so weiterzuentwickeln, dass er kostengünstiger herstellbar ist und seine Verwendbarkeit verbessert wird.The invention has for its object to further develop a spring core of the generic type so that it is cheaper to produce and its usability is improved.

Diese Aufgabe wird durch einen Federkern mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a spring core with the features of claim 1.

Ein in diesem Sinne ausgebildeter Federkern zeichnet sich zunächst einmal dadurch aus, dass der Anteil an Einzelfedern in nennenswertem Maße reduziert werden kann. Wie sich gezeigt hat, kann die Materialeinsparung mehr als 15 % betragen, was sich naturgemäß in niedrigeren Fertigungskosten niederschlägt.A trained in this sense spring core is characterized first of all by the fact that the proportion of individual feathers can be reduced to a significant extent. As has been shown, the material savings can be more than 15%, which naturally results in lower production costs.

Trotzdem bleibt der Federkomfort gegenüber einem Federkern nach dem Stand der Technik uneingeschränkt erhalten.Nevertheless, the spring comfort remains unrestricted with respect to a spring core according to the prior art.

Gemäß der Erfindung sind zwischen den Einzelfedern und/oder den Federreihen Flachfedern angeordnet, die unterschiedlich ausgebildet sein können.According to the invention, flat springs are arranged between the individual springs and / or the spring rows, which can be designed differently.

Bei einer Anordnung zwischen den Federreihen ersetzt eine durchgehende Flachfeder eine komplette Federreihe, wobei diese Flachfeder aus einem mäanderförmig gebogenen Draht besteht, der mit den Drahtwendeln verbunden ist, ebenso wie randseitig mit einem den Federkern umfassenden Rahmen, wenn die Flachfeder die letzte Federreihe des Federkerns bildet.In an arrangement between the spring rows replaces a continuous flat spring a complete row of springs, this flat spring consists of a meandering curved wire, which is connected to the wire helixes, as well as the edge of a frame comprising the spring core, when the leaf spring forms the last spring row of the spring core ,

Die Anbindung der Flachfeder an den Drahtwendeln erfolgt partiell, d.h. nur in bestimmten Abständen der gebildeten Mäander-Bögen.The connection of the flat spring to the wire helix is partial, i. only at certain intervals of the meandering arches formed.

Diese Anordnung der Flachfedern erlaubt ein leichteres Knicken des Federkerns bzw. der fertiggestellten Matratze oder Polsterung entlang einer Federreihe, so dass auch die Verwendbarkeit des neuen Federkerns verbessert wird. Bei der erfindungsgemäß vorgeschlagenen Alternativausbildung, nach der die Flachfedern zwischen den Einzelfedern angeordnet sind, wird der Abstand zwischen den Einzelfedern entsprechend vergrößert, wobei dieser Abstand bestimmt wird vom gewünschten Federungskomfort und der Form der Flachfeder, die sowohl mit den benachbarten Einzelfedern wie auch mit dem Drahtwendel verbunden ist.This arrangement of the flat springs allows easier bending of the spring core or the finished mattress or padding along a spring row, so that the usability of the new spring core is improved. In the proposed alternative training according to the invention, after the flat springs are arranged between the individual springs, the distance between the individual springs is increased accordingly, this distance is determined by the desired suspension comfort and the shape of the flat spring, both with the adjacent individual springs as well as with the wire coil connected is.

Dabei kann der Verlauf der ebenfalls aus einem gebogenen Draht gebildeten Flachfeder unterschiedlich gestaltet sein. Beispielhaft sei auf die Ausbildung etwa in Ω-Form oder auf eine im weitesten Sinne Kreuzform hingewiesen, die relativ große Zwischenräume zwischen zwei Einzelfedern überbrücken können. Je nach Bedarf sind auch Kombinationen anderer Anordnungen und Formen denkbar.In this case, the course of the flat spring also formed from a bent wire can be designed differently. By way of example, attention should be drawn to the training approximately in Ω-form or in the broadest sense cross shape, which can bridge relatively large spaces between two individual springs. Depending on requirements, combinations of other arrangements and shapes are conceivable.

Nach einem weiteren Gedanken der Erfindung ist vorgesehen, die Endringe jeder Einzelfeder im Sinne eines Auslegers zu formen, der über den kreisförmigen Verlauf des Endringes vorsteht und mit dem die Einzelfeder am Drahtwendel angeschlossen ist. Dabei ist dieser Ausleger so gestaltet, dass er gleichfalls ein Auflager bildet.According to a further aspect of the invention, it is provided to form the end rings of each individual spring in the sense of a cantilever which projects beyond the circular course of the end ring and with which the individual spring is connected to the wire helix. In this case, this boom is designed so that it also forms a support.

Entsprechend dem Abstand des Auflagers vom gewundenen Endring vergrößert sich der Abstand zwischen den parallelen Drahtwendeln, der die Breite der jeweiligen Federreihe bestimmt. Auch diese Maßnahme trägt erheblich zu einer Materialeinsparung und damit zur Kostensenkung bei.According to the distance of the support from the winding end ring, the distance between the parallel wire coils increases, which determines the width of the spring row. This measure also contributes significantly to a material saving and thus to a reduction in costs.

Die Ausleger der Einzelfedern können so gestaltet sein, dass, vorzugsweise aus Kunststoff bestehende Auflageteller eingesetzt werden, die formschlüssig gehalten sind und die neben einer Auflagefunktion auch einen Schutz des nachfolgend aufgebrachten Bezugsstoffs vor scharfen Spitzen oder Kanten des verformten Auslegers bildet.The cantilevers of the individual springs can be designed so that, preferably made of plastic support plates are used, which are held positively and in addition to a support function also protects the subsequently applied fabric from sharp points or edges of the deformed cantilever forms.

Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der beigefügten Zeichnungen beschrieben.Embodiments of the invention will be described below with reference to the accompanying drawings.

Es zeigen:

Figur 1
einen Federkern gemäß der Erfindung in einer Draufsicht
Figur 2
einen vergrößerten Teilausschnitt des Federkerns nach Figur 1 in perspektivischer Ansicht
Figur 3
einen Teilausschnitt eines weiteren Ausführungsbeispiels der Erfindung in einer Draufsicht
Figur 4
eine weitere Variante der Erfindung, gleichfalls als Teilausschnitt eines Federkerns in perspektivischer Darstellung
Figuren 5 und 6
jeweils ein Ausführungsbeispiel einer Einzelfeder der Erfindung, in schaubildlicher Abbildung.
Show it:
FIG. 1
a spring core according to the invention in a plan view
FIG. 2
an enlarged partial section of the spring core after FIG. 1 in perspective view
FIG. 3
a partial section of another embodiment of the invention in a plan view
FIG. 4
a further variant of the invention, also as a partial section of a spring core in a perspective view
FIGS. 5 and 6
in each case an embodiment of a single spring of the invention, in perspective view.

In der Figur 1 ist ein Federkern dargestellt, mit einer Vielzahl von, jeweils aus mehreren, beidseitig zu Endringen 5 geformten Einzelfedern 2 bestehenden, parallel zueinander verlaufenden Federreihen 1, wobei die Einzelfedern 2 jeder Federreihe 1 durch an den Endringen 5 angeschlossene Drahtwendel 4 miteinander verbunden sind. Dabei sind die Federreihen 1 quer zur Längserstreckung des Federkerns angeordnet.In the FIG. 1 a spring core is shown, with a plurality of, each consisting of several, both sides of end rings 5 shaped individual springs 2 existing, mutually parallel rows of springs 1, wherein the individual springs 2 each spring row 1 are connected by connected to the end rings 5 wire coil 4. The spring rows 1 are arranged transversely to the longitudinal extent of the spring core.

Entsprechend einer Alternative der Erfindung sind bei dem in den Figuren 1 und 2 gezeigten Beispiel zwischen den Federreihen 1 Flachfedern 3 angeordnet, die jeweils aus einem mäanderförmig gebogenen Draht bestehen und sich über die gesamte Länge der Federreihe 1 erstrecken.According to an alternative of the invention are in which in the FIGS. 1 and 2 between the spring rows 1 flat springs 3 arranged, each consisting of a meander-shaped bent wire and extending over the entire length of the spring row 1 shown.

Die Befestigung der Flachfedern erfolgt hierbei durch Verbinden mit den beidseitig benachbarten Drahtwendeln 4, wobei beidseitig, also an den die Ober- und Unterseite des Federkerns bildenden Seiten Flachfedern 3 vorgesehen sind. Bevorzugt sind die Flachfedern 3 in ihrer Breite entsprechend dem Durchmesser der Endringe 5 der Einzelfedern 2 dimensioniert.The attachment of the flat springs takes place here by connecting with the wire coils 4 adjacent on both sides, with flat springs 3 being provided on both sides, that is to say on the sides forming the upper and lower sides of the spring core. The flat springs 3 are preferably dimensioned in their width corresponding to the diameter of the end rings 5 of the individual springs 2.

In den Figuren 3 und 4 ist jeweils ein Beispiel der zweiten erfindungsgemäßen Alternative dargestellt, nach der zwischen den Einzelfedern 2 Flachfedern 3 angeordnet sind.In the FIGS. 3 and 4 in each case an example of the second alternative according to the invention is shown, after which two flat springs 3 are arranged between the individual springs.

Bei der in der Figur 3 gezeigten Ausführung ist jede Flachfeder 3, die ebenfalls aus Draht gebogen ist, etwa kreuzförmig geformt und mit ihren Enden des sozusagen Querbalkens an den zugeordneten Einzelfedern 2 angeschlossen, während der Längsbalken mit einem Ende am zugeordneten Drahtwendel 4 befestigt und das gegenüberliegende Ende als ein nach außen gerichteter Bogen geformt ist. Damit verbindet die Flachfeder 3 die beiden benachbarten Einzelfedern 2 einerseits und füllt einen Zwischenraum zwischen beiden Einzelfedern 2 aus.When in the FIG. 3 shown embodiment, each flat spring 3, which is also bent from wire, shaped approximately cross-shaped and with their ends of the so to speak Crossbar connected to the associated individual springs 2, while the longitudinal beam is attached at one end to the associated wire helix 4 and the opposite end is formed as an outwardly directed arc. Thus, the flat spring 3 connects the two adjacent individual springs 2 on the one hand and fills a gap between the two individual springs 2.

In der Figur 4 ist die Flachfeder 3 im weitesten Sinne nach Art eines Ω ausgebildet, wobei die beiden Enden an den Endringen 5 der benachbarten Einzelfedern 2 angreifen bzw. dort eingehängt sind, während die unteren Schenkel der Flachfeder 3 mit dem Drahtwendel 4 verbunden sind.In the FIG. 4 the flat spring 3 is formed in the broadest sense in the manner of a Ω, wherein the two ends engage the end rings 5 of the adjacent individual springs 2 or are suspended there, while the lower legs of the flat spring 3 are connected to the wire helix 4.

Die Einzelfedern 2, von denen jeweils eine Ausführungsvariante in den Figuren 5 und 6 als Einzelheit erkennbar sind, sind im Bereich ihrer Endringe 5 als Ausleger 6 geformt, die im Wesentlichen eine G-förmige oder eine spiegelbildlich dazu verlaufende Kontur aufweisen, wobei beide Ausleger 6, wie in den Figuren 5 und 6 deutlich ist, gegensinnig ausgerichtet sind.The individual feathers 2, of which in each case a variant in the Figures 5 and 6 can be seen as a detail, 5 are formed in the region of their end rings as a boom 6, which have a substantially G-shaped or a mirror image to it extending contour, both arms 6, as in the FIGS. 5 and 6 is clear, are aligned in opposite directions.

Das jeweils freie Ende des Auslegers 6 ist bei dem in der Figur 6 gezeigten Beispiel als Haken 7 ausgebildet, in dem formschlüssig ein Auflageteller 8 gehalten ist, wobei zur Verdeutlichung lediglich der obere Ausleger 6 mit einem Auflageteller 8 bestückt ist, während der untere Ausleger 6 den Haken 7 ohne Auflageteller 8 wiedergibt.The respective free end of the boom 6 is in the in the FIG. 6 shown example formed as a hook 7, in which a support plate 8 is held in a form-fitting, wherein for clarity, only the upper arm 6 is equipped with a support plate 8, while the lower arm 6, the hook 7 without support plate 8 reproduces.

Claims (11)

Federkern, mit einer Vielzahl von, jeweils aus mehreren, beidseitig zu Endringen (5) geformten Einzelfedern (2) bestehenden, parallel zueinander verlaufenden Federreihen (1), wobei die Einzelfedern (2) jeder Federreihe (1) durch an den Endringen (5) angeschlossene Drahtwendel (4) miteinander verbunden sind, dadurch gekennzeichnet, dass zwischen den Einzelfedern (2) und/oder den Federreihen (1) Flachfedern (3) angeordnet sind, die mit den Drahtwendeln (4) und/oder den Endringen (5) der Einzelfedern (2) verbunden sind.Spring core, with a plurality of, each of a plurality, on both sides to Endringen (5) shaped individual springs (2) existing, mutually parallel spring rows (1), wherein the individual springs (2) each spring row (1) by the end rings (5) connected wire helix (4) are interconnected, characterized in that between the individual springs (2) and / or the rows of springs (1) flat springs (3) are arranged with the wire helix (4) and / or the end rings (5) Single feathers (2) are connected. Federkern nach Anspruch 1, dadurch gekennzeichnet, dass die zwischen den Federreihen (1) angeordneten Flachfedern (3) jeweils aus einem mäanderförmig gebogenen Draht bestehen.Spring core according to claim 1, characterized in that between the spring rows (1) arranged flat springs (3) each consist of a meandering curved wire. Federkern nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zwischen den Federreihen (1) angeordnete Flachfeder (3) sich über die Länge der Federreihen (1) erstreckt.Spring core according to claim 1 or 2, characterized in that between the spring rows (1) arranged flat spring (3) extends over the length of the spring rows (1). Federkern nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Breite der Flachfedern (3) dem Durchmesser der Endringe (5) entspricht.Spring core according to one of the preceding claims, characterized in that the width of the flat springs (3) corresponds to the diameter of the end rings (5). Federkern nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zwischen den Einzelfedern (2) angeordneten Flachfedern (3) aus einem Draht bestehen, der zu einer etwa kreuzförmigen Kontur gebogen ist.Spring core according to one of the preceding claims, characterized in that between the individual springs (2) arranged flat springs (3) consist of a wire which is bent to an approximately cross-shaped contour. Federkern nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die kreuzförmig gebogene Flachfeder (3) mit den Enden ihres Querbalkens an den Einzelfedern (2), vorzugsweise an deren Endringen (5) und mit einem Ende ihres Längsbalkens am Drahtwendel (4) befestigt sind.Spring core according to one of the preceding claims, characterized in that the cross-shaped flat spring (3) with the ends of its crossbar to the individual springs (2), preferably at the end rings (5) and with one end of its longitudinal beam on the wire helix (4) are attached , Federkern nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zwischen den Einzelfedern (2) angeordneten Flachfedern (3) aus einem Ω-förmig gebogenen Draht bestehen, dessen freie Enden an den Einzelfedern (2) befestigt sind und deren gegensinnig ausgerichtete Schenkel mit der zugeordneten Drahtwendel (4) verbunden sind.Spring core according to one of the preceding claims, characterized in that between the individual springs (2) arranged flat springs (3) consist of a Ω-shaped bent wire whose free ends are attached to the individual springs (2) and their oppositely oriented leg with the associated wire coil (4) are connected. Schraubenförmig gewundene Einzelfeder, insbesondere Bonnell-Feder, deren Windung beidseitig in einen Endring (5) übergeht, dadurch gekennzeichnet, dass an den Endring (5) ein Ausleger (6) angeformt ist, der im Wesentlichen G-förmig oder spiegelbildlich dazu ausgebildet ist.Helically wound single spring, in particular Bonnell spring, whose turn on both sides in an end ring (5), characterized in that on the end ring (5) has a boom (6) is formed, which is substantially G-shaped or mirror-image formed. Einzelfeder nach Anspruch 8, dadurch gekennzeichnet, dass die Ausleger (6) der beiden Endringe (5) gegensinnig ausgerichtet sind.Single spring according to claim 8, characterized in that the arms (6) of the two end rings (5) are oriented in opposite directions. Einzelfeder nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die freien Enden der Ausleger (6) zu einem Haken (7) geformt sind.Single spring according to claim 8 or 9, characterized in that the free ends of the arms (6) are formed into a hook (7). Einzelfeder nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass an jedem Haken (7) ein vorzugsweise aus Kunststoff bestehender Auflageteller (8) formschlüssig gehalten ist.Single spring according to one of claims 8 to 10, characterized in that a preferably made of plastic support plate (8) is held positively on each hook (7).
EP14162770.3A 2013-04-11 2014-03-31 Spring, in particular Bonnell spring Not-in-force EP2789266B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013103645.7A DE102013103645A1 (en) 2013-04-11 2013-04-11 Spring core, in particular Bonnell spring core

Publications (3)

Publication Number Publication Date
EP2789266A2 true EP2789266A2 (en) 2014-10-15
EP2789266A3 EP2789266A3 (en) 2014-10-29
EP2789266B1 EP2789266B1 (en) 2018-12-19

Family

ID=50389982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14162770.3A Not-in-force EP2789266B1 (en) 2013-04-11 2014-03-31 Spring, in particular Bonnell spring

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EP (1) EP2789266B1 (en)
DE (1) DE102013103645A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1887058A (en) * 1927-12-21 1932-11-08 Karr Francis Spring assembly
US1897309A (en) * 1928-11-23 1933-02-14 Charles Karr Company Spring assembly
US2642125A (en) * 1951-03-21 1953-06-16 Reynolds Spring Co Spring construction
US4819920A (en) * 1988-05-23 1989-04-11 Barber Manufacturing Company, Inc. Spring coil assembly
DE202005001760U1 (en) * 2005-02-04 2005-06-09 Weber, Erhard, Dr. Mattress core comprises spiral springs with middle ring halfway up for connection in adjoining rows to spiral wires on diametrically opposite sides of rings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
DE102013103645A1 (en) 2014-10-16
EP2789266B1 (en) 2018-12-19
EP2789266A3 (en) 2014-10-29

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