EP2789265B1 - Ressort d'un noyau de ressort composé d'un fil - Google Patents

Ressort d'un noyau de ressort composé d'un fil Download PDF

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Publication number
EP2789265B1
EP2789265B1 EP14162760.4A EP14162760A EP2789265B1 EP 2789265 B1 EP2789265 B1 EP 2789265B1 EP 14162760 A EP14162760 A EP 14162760A EP 2789265 B1 EP2789265 B1 EP 2789265B1
Authority
EP
European Patent Office
Prior art keywords
springs
spring
spring core
wire
core according
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.)
Not-in-force
Application number
EP14162760.4A
Other languages
German (de)
English (en)
Other versions
EP2789265A1 (fr
Inventor
Wolfgang Grothaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agro Holding GmbH
Original Assignee
Agro Holding GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agro Holding GmbH filed Critical Agro Holding GmbH
Publication of EP2789265A1 publication Critical patent/EP2789265A1/fr
Application granted granted Critical
Publication of EP2789265B1 publication Critical patent/EP2789265B1/fr
Priority to HRP20160541TT priority Critical patent/HRP20160541T1/hr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C23/04—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
    • A47C23/043—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 using wound springs
    • A47C23/0436—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 using wound springs made from a single wire
    • 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
    • A47C23/043—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 using wound springs
    • A47C23/0438—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 using wound springs of special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/06—Coiling wire into particular forms helically internally on a hollow form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire
    • B21F35/006—Double twist coil springs

Definitions

  • the invention relates to a spring core according to the preamble of claim 1.
  • Springs cored with generic springs find use in different areas.
  • spring cores for upholstered furniture, but especially for mattresses, may be mentioned here.
  • the individual springs are designed as coil springs and usually consist of a metal wire, where they are available as Bonnell-, pocket or barrel springs or as waisted springs.
  • the invention has for its object to further develop a spring core of the generic type so that their suspension behavior improves overall and their inherent rigidity is increased.
  • Such a spring core offers over a spring core according to the prior art, considerable advantages. So it should first be mentioned that the inherent rigidity is substantially increased and thus the lateral deflection is reduced, wherein the use of material may be less, but at most equal to the two-turn turns.
  • the material used refers to the diameter of the wire, which can be correspondingly smaller than before.
  • the spring in one piece, for which purpose a suitable tool is proposed, with which an inserted wire is wound in a double-threaded manner, as it were, in one operation.
  • the two end rings are shaped so that there is a supporting support for a cover, these end rings are formed by a partially meandering course.
  • the new spring may be formed as a waisted spring, as Bonnell-, pocket or barrel spring, ie, the waisted or barrel-shaped Springs, as well as cylindrical ones, are enclosed in textile casings and made into a pocket spring core.
  • a further concept of the invention provides that preferably in the middle region, transverse to the longitudinal axis of the springs, a hose is guided, which penetrates at least a part of the springs, which result in a spring row lying side by side.
  • a plurality of spring rows arranged parallel to one another form the spring core.
  • the mentioned hose which is closed at the end, serves to receive a medium with which the suspension behavior of the springs is influenced.
  • compressed air can be introduced into the hose with which the stiffness of the springs or the compression is limited or determined.
  • the hoses can also be filled with other media.
  • a spring core which is partially different in terms of its suspension behavior can be produced, and this suspension behavior can be changed at any time by appropriately discharging or feeding the medium into the hose, that is, by influencing the hardness of the hose.
  • another stiffening element may be provided, in particular one made of elastic solid material, such as a suitable foam or the like, wherein such a rod is to be adapted to the individual wishes and needs of the users of a spring core or a then completed mattress.
  • An apparatus for producing the spring core according to the invention comprises a cylindrical mandrel whose lateral surface is provided with two helically extending furrows, and a bush whose clear diameter corresponds approximately to the outer diameter of the mandrel, wherein the mandrel has a slot at one end, which at both Ends in the respective spiraling passes.
  • the wire to be formed into a spring initially lies in the slot as a rod before the mandrel is axially inserted into the bush and at the same time twisted relative thereto. During this movement, the wire is deformed in such a way that it comes into contact with the turns, which results in the double-turn of the spring. To release the spring from the mandrel, this or the spring is rotated according to the turn, so that the mandrel practically unscrews out of the spring.
  • a spring 1 is shown, which is part of a in the FIG. 2 Partially shown spring core is.
  • the spring 1 at the opposite ends substantially parallel to each other aligned end rings 3, which limit the course of a helically coiled spring wire, which, according to the invention, two-wound wound.
  • an elastically deformable rod 4 is preferably arranged in the middle region of the springs 1 of a row of springs, for example in the form of a hose to be filled with a medium, via which, depending on the filling, for example with air, the spring characteristic of the springs 1 and thus the corresponding spring series is beinmannbar.
  • FIG. 3 shows a tool for producing a spring 1, wherein as a starting material, ie as a blank, a cut wire 5 is used.
  • the tool consists of a mandrel 6 with two helically extending grooves 7 and a bushing 8, in which the mandrel 6 for forming the spring 1 both axially inserted as well as relative to the sleeve 8 is rotated such that the wire 5 in the grooves 7 for Plant comes.
  • the invention can be realized in all spring shapes with helically wound spring wire, including in particular Bonnell springs, barrel-shaped or waist-shaped springs count, the latter also Solutionstascht, so that from a pocket spring core can be produced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Claims (7)

  1. Noyau de ressort avec plusieurs ressorts (1) disposés les uns à côté des autres et formant une rangée de ressorts, dont chacun présente des anneaux d'extrémité (3) qui se font face et sont sensiblement parallèles les uns aux autres, délimitant le trajet d'un fil de ressort (2) enroulé en spirale en deux hélices, caractérisé en ce qu'une barre élastique (4) est passée dans la zone d'enroulement des ressorts (1).
  2. Noyau de ressort selon la revendication 1, caractérisé en ce que les ressorts sont réalisés comme des ressorts Bonnell, de forme concave ou en sablier, ou comme des ressorts ensachés.
  3. Noyau de ressort selon la revendication 1, caractérisé en ce que la barre élastique (4) se compose d'un tuyau rempli d'un fluide.
  4. Noyau de ressort selon la revendication 1, caractérisé en ce que la barre (4) se compose d'un matériau plein déformable de façon élastique.
  5. Noyau de ressort selon la revendication 1, caractérisé en ce que la barre (4) est guidée à travers les ressorts (1) approximativement au milieu de la zone d'enroulement.
  6. Procédé pour la fabrication d'un noyau de ressort selon la revendication 1, caractérisé en ce qu'un fil métallique (5) est enroulé au moyen d'un moule présentant deux gorges en spirale.
  7. Dispositif pour la mise en oeuvre du procédé selon la revendication 6, caractérisé en ce qu'il est prévu un mandrin (6) pourvu de deux gorges (7) en spirale prévues dans sa surface d'enveloppe, qui peut être introduit dans le sens axial et en tournant dans une douille (8), le diamètre extérieur du mandrin (6) correspondant approximativement au diamètre ouvert de la douille (8).
EP14162760.4A 2013-04-11 2014-03-31 Ressort d'un noyau de ressort composé d'un fil Not-in-force EP2789265B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20160541TT HRP20160541T1 (hr) 2013-04-11 2016-05-19 Opruga od opružne jezgre koja se sastoji od žice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310103644 DE102013103644A1 (de) 2013-04-11 2013-04-11 Aus Draht bestehende Feder eines Federkerns

Publications (2)

Publication Number Publication Date
EP2789265A1 EP2789265A1 (fr) 2014-10-15
EP2789265B1 true EP2789265B1 (fr) 2016-03-30

Family

ID=50389980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14162760.4A Not-in-force EP2789265B1 (fr) 2013-04-11 2014-03-31 Ressort d'un noyau de ressort composé d'un fil

Country Status (5)

Country Link
EP (1) EP2789265B1 (fr)
DE (1) DE102013103644A1 (fr)
HR (1) HRP20160541T1 (fr)
PL (1) PL2789265T3 (fr)
PT (1) PT2789265T (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015102539A1 (de) * 2015-02-23 2016-08-25 Agro Holding Gmbh Verfahren zur Herstellung einer Polsterfeder, Polsterfeder, Matratze und Polstermöbel
DE102016107746A1 (de) 2016-04-26 2017-10-26 Agro Holding Gmbh Polsterfeder, Verfahren zur Herstellung einer Polsterfeder, Matratze und Polstermöbel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB427118A (en) * 1933-10-19 1935-04-16 Douglas Rowland Drummond Improvements relating to coil springs, particularly for upholstery
US2014833A (en) * 1934-03-28 1935-09-17 Rca Corp Coil winding machine
US3406550A (en) * 1966-12-19 1968-10-22 Taylor George Wesley Apparatus for forming wire cable grips
US4682394A (en) * 1985-08-27 1987-07-28 Leggett & Platt, Incorporated Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same
US6986182B2 (en) * 2004-06-10 2006-01-17 L&P Property Management Company Pocketed bedding or seating product having inflatable members

Also Published As

Publication number Publication date
EP2789265A1 (fr) 2014-10-15
HRP20160541T1 (hr) 2016-06-17
PL2789265T3 (pl) 2016-09-30
PT2789265T (pt) 2016-07-13
DE102013103644A1 (de) 2014-10-16

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