EP1523911B1 - Noyau à ressorts - Google Patents

Noyau à ressorts Download PDF

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Publication number
EP1523911B1
EP1523911B1 EP04019812A EP04019812A EP1523911B1 EP 1523911 B1 EP1523911 B1 EP 1523911B1 EP 04019812 A EP04019812 A EP 04019812A EP 04019812 A EP04019812 A EP 04019812A EP 1523911 B1 EP1523911 B1 EP 1523911B1
Authority
EP
European Patent Office
Prior art keywords
spring core
frame
approximately
thickness
width
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.)
Active
Application number
EP04019812A
Other languages
German (de)
English (en)
Other versions
EP1523911A1 (fr
Inventor
Gerd-Uwe Schmidt
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 Federkernproduktions GmbH
Original Assignee
AGRO Federkernproduktions 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 Federkernproduktions GmbH filed Critical AGRO Federkernproduktions GmbH
Priority to PL04019812T priority Critical patent/PL1523911T3/pl
Publication of EP1523911A1 publication Critical patent/EP1523911A1/fr
Application granted granted Critical
Publication of EP1523911B1 publication Critical patent/EP1523911B1/fr
Active 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
    • 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

Definitions

  • the present invention relates to a spring core, with a plurality of axially parallel juxtaposed, helically wound springs and one, the top or bottom laterally delimiting, circumferential, made of metal, preferably steel frame, which is connected to adjacent springs.
  • Such spring cores are used in many applications. Primarily they are used in the production of mattresses or furniture upholstery.
  • the frame of a round material, preferably a round bar, wherein the diameter of the round material usually between 3.8 and 4.8 mm.
  • the frame can be formed both from said round and from a flat material.
  • the innerspring can be rolled up and unrolled, in accordance with the term of the term.
  • the spring cores usually have to be transported from the place of manufacture to the mattress production, wherein the respective production sites can be spatially very far apart.
  • the spring cores occupy a relatively large volume in use position with low weight. Naturally, therefore, the transport costs of the spring cores are disproportionately high, which affects the manufacturing costs in total, which include the transport costs, unfavorable.
  • the frame of a spring core are formed from a narrow sheet metal strip, so that the extent completed innerspring can be rolled up, the springs of the spring core are completely compressed. A roll-up in this sense is not possible with a frame made of the aforementioned round material.
  • this spring core has due to its dimensions not the desired edge stability, which naturally affects the ease of use of the spring core and the padded part made therefrom.
  • the present invention is therefore based on the object to develop a spring core of the generic type so that its handling and serviceability can be improved.
  • the formation of the spring core in this sense, firstly, that it can be easily rolled up immediately after production for further transport and then unrolled for further use, in a flat plane position.
  • a dimensioning of the frame has shown, in which the thickness of about 2.3 mm and the width of about 6.0 mm.
  • Also advantageous is a dimension of about 2.1 mm thick and about 6.3 mm wide, ie in the ratio 1: 3, with the possible deviations in the dimensions mentioned in the tenths of a millimeter range can move.
  • a steel with a high carbon content for example, 0.5-1.0% C is preferably selected, with a tensile strength of about 2000 N / mm 2 .
  • the modulus of elasticity of this steel is greater than that of the steel used so far, resulting in said improvement of Aufrichtmomentes.
  • the section of a spring core is shown, which has a plurality of axially parallel juxtaposed, helically wound springs 1, which are interconnected.
  • Upper and lower sides of the spring core is laterally delimited by a circumferential, consisting of metal frame 2, wherein the adjacent springs 1 are fastened by means of brackets 3 to the frame 2.
  • the clip 3 wraps around the frame 2 and an overlying wire 4 of the spring 1, from which it is formed.
  • the peripheral frames 2 each consist of a flat steel whose thickness A is in the ratio 1: 2.2-3.5 to the width B, preferably in the ratio 1: 2.6 or 1: 3.
  • the direction of extension of the broad side of the frame 2 corresponds to that of the upper or lower side of the spring core, which can be seen particularly clearly in FIG.
  • the frame 2 rest against the spring 1 on the upper side or on the lower side. It is also conceivable to connect the frame 2 laterally on the wire 4.

Landscapes

  • Springs (AREA)
  • Magnetic Heads (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Claims (7)

  1. Noyau à ressorts enroulable et déroulable, avec une pluralité de ressorts (1) enroulés en spirale et placés avec leurs axes parallèles les uns à côté des autres, et avec à chaque fois un cadre (2) périphérique en métal délimitant latéralement la face supérieure resp. inférieure, qui est relié à des ressorts (1) voisins, caractérisé en ce que chaque cadre (2) est formé d'un acier plat présentant un rapport épaisseur (A):largeur (B) de 1:2,2 à 1:3,5, la direction d'extension du grand côté du cadre (2) correspondant à celle de la face supérieure resp. inférieure du noyau à ressorts.
  2. Noyau à ressorts selon la revendication 1, caractérisé en ce que le rapport épaisseur (A):largeur (B) du cadre (2) vaut environ 1 :2,6.
  3. Noyau à ressorts selon la revendication 1, caractérisé en ce que le rapport épaisseur (A):largeur (B) du cadre (2) vaut 1 :3.
  4. Noyau à ressorts selon la revendication 1 ou 2, caractérisé en ce que l'épaisseur (A) vaut environ 2,3 mm et la largeur (B) environ 6,0 mm.
  5. Noyau à ressorts selon la revendication 1 ou 3, caractérisé en ce que l'épaisseur (A) vaut environ 2,1 mm et la largeur (B) environ 6,3 mm.
  6. Noyau à ressorts selon l'une des revendications précédentes, caractérisé en ce que le cadre (2) est constitué d'un acier au carbone comprenant 0,5 à 1,0 % de carbone.
  7. Noyau à ressorts selon l'une des revendications précédentes, caractérisé en ce que l'acier plat présente une résistance à la traction d'environ 2000 N/mm2.
EP04019812A 2003-10-15 2004-08-20 Noyau à ressorts Active EP1523911B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04019812T PL1523911T3 (pl) 2003-10-15 2004-08-20 Rdzeń sprężynowy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347906A DE10347906A1 (de) 2003-10-15 2003-10-15 Federkern
DE10347906 2003-10-15

Publications (2)

Publication Number Publication Date
EP1523911A1 EP1523911A1 (fr) 2005-04-20
EP1523911B1 true EP1523911B1 (fr) 2006-11-29

Family

ID=34353413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04019812A Active EP1523911B1 (fr) 2003-10-15 2004-08-20 Noyau à ressorts

Country Status (8)

Country Link
US (1) US20050132497A1 (fr)
EP (1) EP1523911B1 (fr)
AT (1) ATE346526T1 (fr)
DE (2) DE10347906A1 (fr)
DK (1) DK1523911T3 (fr)
ES (1) ES2278250T3 (fr)
PL (1) PL1523911T3 (fr)
PT (1) PT1523911E (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3656254A1 (fr) * 2018-11-26 2020-05-27 L&P Swiss Holding GmbH Noyau de ressort de poche

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635258A (en) * 1947-11-22 1953-04-21 Anspacher Edgar Bed spring marginal rim and connections
DE1086411B (de) * 1955-09-30 1960-08-04 No Sag Drahtfedern Gmbh Federkoerper mit an den Schmalseiten senkrechtstehend angeordneten, schlangenfoermiggebogenen Flachfedern fuer Matratzen oder Polstermoebel
US2974326A (en) * 1958-05-26 1961-03-14 United States Bedding Co Spring insert for spring assemblies
FR1594984A (fr) * 1967-12-12 1970-06-08
DE1654319A1 (de) * 1967-12-12 1971-02-18 Molt Otto P Randfederung fuer Federkerne von Sitzpolstern
DE2064841C3 (de) * 1970-12-18 1979-01-25 Silentnight Ltd., Colne, Lancashire (Grossbritannien) Federkern für Polstermöbel
DE3623209C1 (en) * 1986-07-10 1987-10-15 W. & G. Wunsch Kg, 8631 Weidach, De Spring core mfg. for furniture - inserts non-treated coil springs and carries out thermal treatment in heated atmos. for 10 minutes
DE4016607C1 (en) * 1990-05-23 1991-03-21 Guenter Benderoth, Federeinlagen- Und Kunststoffabrikation, 3430 Witzenhausen, De Springs for mattress of bed - are coil springs each installed in individual fabric or fleece pockets
US5325553A (en) * 1992-08-21 1994-07-05 Namaco Enterprises Mattress spring structure with reinforcing frame in the lumbar area

Also Published As

Publication number Publication date
ES2278250T3 (es) 2007-08-01
ATE346526T1 (de) 2006-12-15
DE502004002156D1 (de) 2007-01-11
DE10347906A1 (de) 2005-06-09
PL1523911T3 (pl) 2007-04-30
DK1523911T3 (da) 2007-04-02
PT1523911E (pt) 2007-02-28
US20050132497A1 (en) 2005-06-23
EP1523911A1 (fr) 2005-04-20

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