EP3664666B1 - Pocket spring core and method for producing same - Google Patents
Pocket spring core and method for producing same Download PDFInfo
- Publication number
- EP3664666B1 EP3664666B1 EP18746887.1A EP18746887A EP3664666B1 EP 3664666 B1 EP3664666 B1 EP 3664666B1 EP 18746887 A EP18746887 A EP 18746887A EP 3664666 B1 EP3664666 B1 EP 3664666B1
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- springs
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- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000000463 material Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- 238000013316 zoning Methods 0.000 description 2
- 230000003187 abdominal effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—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
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/062—Spring inlays of different resiliencies
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/07—Attaching, or interconnecting of, springs in spring inlays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G7/00—Making upholstery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
Definitions
- the invention relates to a pocket spring core according to the preamble of claim 1 and a method for producing a pocket spring core.
- Such spring cores are used in many areas of application. They are primarily used in the production of mattresses or furniture upholstery.
- the US 2007/0130883 A1 discloses a method and a device for producing pocket spring cores. In a strand with pockets for springs, you can select whether a spring with a thicker or thinner wire diameter is inserted, so that different spring behavior is generated depending on the spring inserted into a pocket.
- US 2017 / 035211 A1 discloses a mattress with two spring cores, which are held in a frame and interlocked into one another on the side facing each other by individual springs.
- the spring cores are each removable.
- the spring core with an upper and lower circumferential edge reinforcement, which is made of a round or flat material, preferably made of metal.
- Such a spring core is, for example, from WO 96/35 355 A1 known.
- this spring core cannot be rolled up and unrolled, so it does not meet the requirements for optimized production.
- the spring cores In order to complete the end product, mattress or upholstered part, the spring cores usually have to be transported from the place of manufacture to the mattress production site, whereby the respective production sites can be spatially very far apart.
- spring strands are used whose springs are harder than those of the springs of neighboring spring strands. This is achieved through various selection criteria, for example through different wire diameters or by changing the number of turns. A selection of different material properties can also cause a corresponding change in spring behavior, as can a waist of the individual springs.
- spring strands When producing spring strands by machine, spring strands can only ever be equipped with the same springs.
- a previously described frame has been used which completely encloses the spring core.
- the spring strands at least some of which are composed of, so to speak, individual spring strands that differ in their suspension behavior, extend in the longitudinal direction of a rectangular, elongated spring core. This means that the partial spring strands of a spring strand add up to the total length of the spring core.
- the invention is based on the object of designing a pocket spring core of the generic type and a method for producing such a pocket spring core in such a way that machine-automatic production of the spring core as a whole is possible and cost optimization is achieved.
- the invention now makes it possible to create any different zoning of the spring core by mechanically producing, depending on the requirement, either spring strands with the same springs or partial spring strands, each with different spring characteristics of the individual springs, which are then joined together in further process steps in this way, that spring strands result in areas with different suspension behavior.
- the individual springs of a partial spring strand have the same spring characteristics.
- this spring characteristic can be influenced, for example, by the material selection of the spring wire, the wire diameter and the shape of the spring, the latter for example as a waisted, cylindrical or barrel-shaped design.
- the new pocket spring core offers clear advantages over one based on the state of the art, both in terms of manufacturing costs as well as in terms of handling and freedom of design.
- the production of the new pocket spring core can be carried out fully automatically, i.e. by machine, which concerns both the production of the partial spring strands, their assembly to form a complete pocket spring core, as well as the connection of adjacent pocketed springs with different spring characteristics.
- pocket spring cores are possible, depending on the needs of the future user. This includes consideration of the suspension behavior of various zones. This means, for example, that one-sided, multi-sided or all-round edge reinforcement is easily possible with correspondingly harder spring characteristics. Likewise, preferred zones within the lying surface can be individually adjusted during the production of the pocket spring core and are essentially cost-neutral due to the automated production.
- the further processing of the pocket spring core into a mattress or a cushion that can be used for other purposes is also unproblematic, especially with regard to the transport from the production site of the pocket spring core to the further processing company. This is mainly because of the pocket spring core It can be rolled up and therefore only requires a small amount of transport space, which also contributes to cost optimization.
- the invention according to which partial spring strands of adjacent spring strands are of different lengths and these adjacent partial spring strands are connected to one another, creates a toothing which results in a firm connection of all spring strands, although the partial spring strands with different suspension behavior of a spring strand are not connected to one another can be connected, at least not mechanically, as is possible when connecting several spring strands next to one another.
- the partial spring strands lying parallel to one another can be connected by gluing or welding, which is done by machine in the same way as the partial spring strands are manufactured.
- the method for the mechanical production of a pocket spring core is, according to the invention, designed in such a way that at least some of the spring strands are first produced as partial spring strands with different suspension behavior in different lengths, then adjacent partial spring strands are connected to one another, with partial spring strands with different spring characteristics overlap with their free end, so to speak, and are also connected to each other in this overlap area.
- a section is shown in the area of a corner of a pocket spring core, with a plurality of pocketed springs 4, 5, several of which, arranged in a row one behind the other, form a spring strand 1, the springs 4, 5 each being in a flexible, preferably Insert a pocket made of textile material. These pockets are connected to one another by webs 6.
- the individual spring strands 1 lying parallel to one another are each formed by partial spring strands 2, 3, the suspension behavior of which is different, which is illustrated in the figures by different line widths of the pocketed springs 4, 5.
- the partial spring strands 2, 3 are of different lengths, in the examples each by a spring 4, 5.
- the spring strand 1 which forms an outer edge of the lying surface and is lower in the plane of the drawing, is continuously equipped with the same springs 5 and thus forms an edge reinforcement, as does the row of springs 5 lying next to one another at an angle to it, which consists of the last spring in each case 5 of the spring strands 1 lying next to each other, whereby this edge reinforcement can be circumferential.
- the springs 5 shown in the figures with a larger line width are harder in their suspension characteristics than the springs 4 shown with a smaller line width.
- the arrangement of the partial spring strands 2, 3, depending on the desired suspension behavior of corresponding areas of the spring core, can be selected arbitrarily and only depends on the customer's wishes.
Description
Die Erfindung betrifft einen Taschenfederkern nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Herstellung eines Taschenfederkerns.The invention relates to a pocket spring core according to the preamble of
Derartige Federkerne finden in vielen Anwendungsbereichen Verwendung. Vornehmlich kommen sie bei der Herstellung von Matratzen oder Möbelpolstern zum Einsatz.Such spring cores are used in many areas of application. They are primarily used in the production of mattresses or furniture upholstery.
Die
Insbesondere um eine ausreichende Kantenstabilität zu erreichen, die dann gewünscht ist, wenn das Polster oder die Matratze bereichsweise als Sitzgelegenheit genutzt wird, ist es bekannt, den Federkern mit einer oberen und unteren umlaufenden Randverstärkung zu versehen, die aus einem Rund- oder Flachmaterial, vorzugsweise aus Metall, besteht.In particular, in order to achieve sufficient edge stability, which is desired when the cushion or mattress is used as a seat in some areas, it is known to provide the spring core with an upper and lower circumferential edge reinforcement, which is made of a round or flat material, preferably made of metal.
Ein solcher Federkern ist beispielsweise aus der
Zur Fertigstellung des Endproduktes Matratze oder Polsterteil müssen nämlich die Federkerne üblicherweise vom Herstellungsort zur Matratzenanfertigung transportiert werden, wobei die jeweiligen Fertigungsstätten räumlich sehr weit auseinander liegen können.In order to complete the end product, mattress or upholstered part, the spring cores usually have to be transported from the place of manufacture to the mattress production site, whereby the respective production sites can be spatially very far apart.
Da die Federkerne aufgrund ihrer Beschaffenheit in Gebrauchsposition ein relativ großes Volumen bei gleichzeitig geringem Gewicht einnehmen, sind die Transportkosten dieser Federkerne unverhältnismäßig hoch.Since the spring cores, due to their nature, occupy a relatively large volume in the position of use and at the same time are low in weight, the transport costs of these spring cores are disproportionately high.
Um eine in ihrem Federungsverhalten unterschiedliche Zonierung zu erreichen, auch für die benannte Randverstärkung, ohne einen umfänglichen Metallrahmen, finden Federstränge Verwendung, deren Federn härter sind als die der Federn benachbarter Federstränge. Dies wird durch verschiedene Auswahlkriterien erreicht, beispielsweise durch abweichende Drahtdurchmesser oder durch Veränderungen der Windungszahlen. Auch eine Auswahl unterschiedlicher Materialeigenschaften kann ein entsprechend verändertes Federverhalten begründen, ebenso wie eine Taillierung der einzelnen Federn.In order to achieve different zoning in their suspension behavior, also for the edge reinforcement mentioned, without a circumferential metal frame, spring strands are used whose springs are harder than those of the springs of neighboring spring strands. This is achieved through various selection criteria, for example through different wire diameters or by changing the number of turns. A selection of different material properties can also cause a corresponding change in spring behavior, as can a waist of the individual springs.
Bei der maschinellen Herstellung von Federsträngen können Federstränge immer nur mit gleichen Federn bestückt werden. Um Federstränge mit teilweise unterschiedlichen Federn zu einem Federkern zusammenzufügen, wobei, entsprechend der Gattung, benachbarte Federstränge miteinander verbunden werden, kommt bislang ein vorbeschriebener Rahmen zum Einsatz, der den Federkern vollumfänglich umschließt. Dabei erstrecken sich die Federstränge, von denen zumindest ein Teil sich aus sozusagen Einzelfedersträngen zusammensetzen, die sich in ihrem Federungsverhalten unterscheiden, in Längsrichtung eines rechteckigen länglichen Federkerns. D.h., die Teil-Federstränge eines Federstrangs ergeben in der Summe die Gesamtlänge des Federkerns.When producing spring strands by machine, spring strands can only ever be equipped with the same springs. In order to combine spring strands with partially different springs to form a spring core, whereby, depending on the type, adjacent spring strands are connected to one another, a previously described frame has been used which completely encloses the spring core. The spring strands, at least some of which are composed of, so to speak, individual spring strands that differ in their suspension behavior, extend in the longitudinal direction of a rectangular, elongated spring core. This means that the partial spring strands of a spring strand add up to the total length of the spring core.
Abgesehen davon, dass sich bei der Fixierung der Teil-Federstränge mittels eines Metallrahmens die dazu geschilderten Probleme ergeben, ist eine komplette maschinelle Herstellung des Federkerns nicht möglich und somit keine Automatisierung, da der umfängliche Metallrahmen manuell nach Zusammenfügen und Verbinden der benachbarten Federstränge befestigt werden muss.Apart from the fact that the problems described arise when fixing the partial spring strands using a metal frame, complete mechanical production of the spring core is not possible and therefore no automation, since the circumferential metal frame has to be attached manually after assembling and connecting the adjacent spring strands .
Insgesamt stellt sich der gattungsgemäße Stand der Technik als äußerst unbefriedigend dar, insbesondere hinsichtlich einer stets angestrebten Kostenoptimierung.Overall, the current state of the art is extremely unsatisfactory, especially with regard to the constant aim of cost optimization.
Der Erfindung liegt die Aufgabe zugrunde, einen Taschenfederkern der gattungsgemäßen Art sowie ein Verfahren zur Herstellung eines solchen Taschenfederkerns so auszubilden, dass eine maschinelle automatische Fertigung des Federkerns insgesamt möglich ist und eine Kostenoptimierung erreicht wird.The invention is based on the object of designing a pocket spring core of the generic type and a method for producing such a pocket spring core in such a way that machine-automatic production of the spring core as a whole is possible and cost optimization is achieved.
Diese Aufgabe wird durch einen Federkern mit den Merkmalen des Anspruchs 1 sowie durch ein Verfahren zur Herstellung des Federkerns gelöst.This object is achieved by a spring core with the features of
Die Erfindung schafft nun die Möglichkeit, beliebig unterschiedliche Zonierungen des Federkerns zu schaffen, indem maschinell, je nach Anspruch, entweder Federstränge mit gleichen Federn hergestellt werden oder Teil-Federstränge, jeweils mit unterschiedlichen Federcharakteristika der Einzelfedern, die dann in weiteren Verfahrensschritten derart zusammengefügt werden, dass sich Federstränge mit bereichsweise unterschiedlichen Federungsverhalten ergeben. Dabei sind die einzelnen Federn eines Teil-Federstrangs in ihrer Federcharakteristik gleich.The invention now makes it possible to create any different zoning of the spring core by mechanically producing, depending on the requirement, either spring strands with the same springs or partial spring strands, each with different spring characteristics of the individual springs, which are then joined together in further process steps in this way, that spring strands result in areas with different suspension behavior. The individual springs of a partial spring strand have the same spring characteristics.
In an sich bekannter Weise kann diese Federcharakteristik beeinflusst werden beispielsweise durch die Materialauswahl des Federdrahtes, des Drahtdurchmessers und der Federform, letztere zum Beispiel als taillierte, zylindrische oder tonnenförmige Ausbildung.In a manner known per se, this spring characteristic can be influenced, for example, by the material selection of the spring wire, the wire diameter and the shape of the spring, the latter for example as a waisted, cylindrical or barrel-shaped design.
Sowohl hinsichtlich der Herstellungskosten wie auch hinsichtlich der Handhabung und Gestaltungsfreiheit bietet der neue Taschenfederkern deutliche Vorteile gegenüber einem nach dem Stand der Technik.The new pocket spring core offers clear advantages over one based on the state of the art, both in terms of manufacturing costs as well as in terms of handling and freedom of design.
Wie erwähnt, kann die Herstellung des neuen Taschenfederkerns vollautomatisch, d.h. maschinell erfolgen, was sowohl die Herstellung der Teil-Federstränge, deren Zusammenfügen zu einem insoweit kompletten Taschenfederkern, wie auch das miteinander Verbinden benachbarter, in ihrer Federcharakteristik unterschiedlicher eingetaschter Federn betrifft.As mentioned, the production of the new pocket spring core can be carried out fully automatically, i.e. by machine, which concerns both the production of the partial spring strands, their assembly to form a complete pocket spring core, as well as the connection of adjacent pocketed springs with different spring characteristics.
Überdies ist eine individuelle Herstellung von Taschenfederkernen möglich, je nach Bedarf des zukünftigen Benutzers. Dies schließt die Berücksichtigung hinsichtlich des Federungsverhaltens unterschiedlichster Zonen ein. D.h., beispielsweise ist problemlos eine einseitige, mehrseitige oder umlaufende Randverstärkung möglich bei entsprechend härterer Federcharakteristik. Ebenso sind bevorzugte Zonen innerhalb der Liegefläche bei der Herstellung des Taschenfederkerns individuell anpassbar und aufgrund der automatisierten Herstellung im Wesentlichen kostenneutral.In addition, individual production of pocket spring cores is possible, depending on the needs of the future user. This includes consideration of the suspension behavior of various zones. This means, for example, that one-sided, multi-sided or all-round edge reinforcement is easily possible with correspondingly harder spring characteristics. Likewise, preferred zones within the lying surface can be individually adjusted during the production of the pocket spring core and are essentially cost-neutral due to the automated production.
Durch den Verzicht auf einen umlaufenden Metallrahmen gestaltet sich auch die Weiterverarbeitung des Taschenfederkerns zu einer Matratze oder einem anderweitig einsetzbaren Polster unproblematisch, insbesondere hinsichtlich des Transports von der Fertigungsstätte des Taschenfederkerns hin zu dem weiterverarbeitenden Betrieb. Dies vor allem deshalb, weil der Taschenfederkern zusammenrollbar ist und so einen lediglich geringen Transportplatz benötigt, was im Übrigen auch zu einer Kostenoptimierung beiträgt.By dispensing with a surrounding metal frame, the further processing of the pocket spring core into a mattress or a cushion that can be used for other purposes is also unproblematic, especially with regard to the transport from the production site of the pocket spring core to the further processing company. This is mainly because of the pocket spring core It can be rolled up and therefore only requires a small amount of transport space, which also contributes to cost optimization.
Prinzipiell ist durch die Erfindung, nach der Teil-Federstränge benachbarter Federstränge unterschiedlich lang sind und diese benachbarten Teilfederstränge miteinander verbunden sind, eine Verzahnung geschafft, aus der sich ein fester Verbund aller Federstränge ergibt, obwohl die Teil-Federstränge mit unterschiedlichem Federungsverhalten eines Federstrangs nicht miteinander verbindbar sind, zumindest nicht maschinell, wie dies bei der Verbindung mehrerer nebeneinanderliegender Federstränge möglich ist.In principle, the invention, according to which partial spring strands of adjacent spring strands are of different lengths and these adjacent partial spring strands are connected to one another, creates a toothing which results in a firm connection of all spring strands, although the partial spring strands with different suspension behavior of a spring strand are not connected to one another can be connected, at least not mechanically, as is possible when connecting several spring strands next to one another.
In an sich bekannter Weise kann die Verbindung der parallel nebeneinanderliegenden Teil-Federstränge durch Verkleben oder Verschweißen erfolgen, was ebenso maschinell erfolgt wie das Herstellen der Teil-Federstränge.In a manner known per se, the partial spring strands lying parallel to one another can be connected by gluing or welding, which is done by machine in the same way as the partial spring strands are manufactured.
Das Verfahren zur maschinellen Herstellung eines Taschenfederkerns ist, gemäß der Erfindung, so ausgebildet, dass zunächst zumindest ein Teil der Federstränge als Teil-Federstränge mit unterschiedlichem Federungsverhalten in unterschiedlichen Längen hergestellt, danach nebeneinander liegende Teil-Federstränge miteinander verbunden werden, wobei sich Teil-Federstränge mit unterschiedlichen Federcharakteristika mit ihrem sozusagen freien Ende überlappen und in diesem Überlappungsbereich ebenfalls miteinander verbunden werden.The method for the mechanical production of a pocket spring core is, according to the invention, designed in such a way that at least some of the spring strands are first produced as partial spring strands with different suspension behavior in different lengths, then adjacent partial spring strands are connected to one another, with partial spring strands with different spring characteristics overlap with their free end, so to speak, and are also connected to each other in this overlap area.
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.Exemplary embodiments of the invention are described below with reference to the accompanying drawings.
Es zeigen:
Figur 1- eine schematische Abbildung eines Ausschnitts eines erfindungsgemäßen Taschenfederkerns in perspektivischer Ansicht
Figur 2- eine schematische Abbildung eines Ausschnitts eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Taschenfederkerns in einer Draufsicht.
- Figure 1
- a schematic illustration of a section of a pocket spring core according to the invention in a perspective view
- Figure 2
- a schematic illustration of a section of a further embodiment of a pocket spring core according to the invention in a top view.
In den Figuren ist jeweils ein Ausschnitt im Bereich einer Ecke eines Taschenfederkerns abgebildet, mit einer Vielzahl von eingetaschten Federn 4, 5, von denen mehrere in einer Reihe hintereinander angeordnete einen Federstrang 1 bilden, wobei die Federn 4, 5 jeweils in einer flexiblen, vorzugsweise aus textilem Material gebildeten Tasche einliegen. Diese Taschen sind durch Stege 6 miteinander verbunden.In each of the figures, a section is shown in the area of a corner of a pocket spring core, with a plurality of pocketed
Mehrere der Federstränge 1, die nebeneinander angeordnet und durch Verkleben oder durch Verschweißen miteinander verbunden sind, bilden eine Liegefläche, wobei die Länge der Federstränge 1 der Länge der rechteckigen Liegefläche entspricht.Several of the
Bei dem gezeigten Beispiel werden die einzelnen, parallel nebeneinander liegenden Federstränge 1 jeweils durch Teil-Federstränge 2, 3 gebildet, deren Federungsverhalten unterschiedlich ist, was in den Figuren durch unterschiedliche Strichstärken der eingetaschten Federn 4, 5 verdeutlicht ist.In the example shown, the
Gemäß der Erfindung sind die Teil-Federstränge 2, 3 unterschiedlich lang, in den Beispielen jeweils um eine Feder 4, 5.According to the invention, the
Da die Länge der einzelnen Federstränge 1 gleich ist, ergibt sich im Verbindungsbereich der Teil-Federstränge 2, 3 eine Verzahnung, d.h. gemäß dem Beispiel nach
Bei der in der
Die in den Figuren mit größerer Strichstärke dargestellten Federn 5 sind in ihrer Federungscharakteristik härter als die mit geringerer Strichstärke erkennbaren Federn 4.The
Die Anordnung der Teil- Federstränge 2, 3, je nach gewünschtem Federungsverhalten entsprechender Bereiche des Federkerns, ist beliebig wählbar und lediglich abhängig von den Kundenwünschen.The arrangement of the
Claims (4)
- Pocket spring core, having a plurality of springs (4, 5), of which a plurality thereof arranged one behind the other in a row and each lying in a flexible pocket formed preferably of textile material form a bank of springs (1) and a plurality of adjoining banks of springs (1) which jointly form a lying surface are connected to one another, wherein the springs (4, 5) of at least one region of the lying surface are different in their spring behavior with respect to the springs (4, 5) of the adjacent regions, wherein:- at least a part of the individual banks of springs (1) consists of partial banks of springs (2, 3) with different spring behavior,- the pocketed springs (4, 5) of the respective partial banks of springs (2, 3) are the same,- at least some of the adjacent partial banks of springs (2, 3) of adjoining banks of springs (1) are of different lengths,- the adjacent partial banks of springs (2, 3) of adjoining banks of springs (1) are connected to one another by gluing or welding,- the adjacent banks of springs (1) are connected to one another by gluing or welding,- a partial bank of springs (2, 3) of a further bank of springs (1) is arranged between two partial banks of springs (2, 3) of two banks of springs 1, which in its length is different from the partial banks of springs (2, 3) adjacent on both sides,- and the partial banks of springs (2, 3) of adjacent banks of springs (1) overlap in the region of at least one pocketed spring (4, 5), wherein the production of the pocket spring core takes place fully automatically,characterized in that
the partial banks of springs (2, 3) with different spring behavior of an individual bank of springs (1) are not connected to each other - Pocket spring core according to one of the preceding claims, characterized in that the banks of springs (1) correspond in their length to the length of the pocket spring core formed as a rectangle.
- Pocket spring core according to one of the preceding claims, characterized in that the adjacent banks of springs (1) are connected to one another in the region of the pocketed springs (4, 5).
- Method for the mechanical production of a pocket spring core according to claim 1, characterized in that first the partial banks of springs (2, 3) of different lengths are produced, then these adjoining partial banks of springs (2, 3) are connected to one another, then the partial banks of springs (2, 3) with different spring behavior in the region of their different lengths are joined together and connected to one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017117833.3A DE102017117833A1 (en) | 2017-08-07 | 2017-08-07 | Pocket spring core and method for its production |
| PCT/EP2018/070087 WO2019029988A1 (en) | 2017-08-07 | 2018-07-25 | Pocket spring core and method for producing same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3664666A1 EP3664666A1 (en) | 2020-06-17 |
| EP3664666C0 EP3664666C0 (en) | 2024-01-31 |
| EP3664666B1 true EP3664666B1 (en) | 2024-01-31 |
Family
ID=63047341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18746887.1A Active EP3664666B1 (en) | 2017-08-07 | 2018-07-25 | Pocket spring core and method for producing same |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US11653770B2 (en) |
| EP (1) | EP3664666B1 (en) |
| CN (1) | CN110996726A (en) |
| AU (1) | AU2018314396B2 (en) |
| BR (1) | BR112020001842B1 (en) |
| CA (1) | CA3071041C (en) |
| CO (1) | CO2020001477A2 (en) |
| DE (1) | DE102017117833A1 (en) |
| MX (1) | MX2020001420A (en) |
| WO (1) | WO2019029988A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11109686B2 (en) * | 2018-06-13 | 2021-09-07 | L&P Property Management Company | Method of making a continuous string of pocketed springs |
Citations (1)
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| CA3071041C (en) | 2023-10-24 |
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