EP2105069A1 - Ensemble de ressort à enroulement - Google Patents

Ensemble de ressort à enroulement Download PDF

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Publication number
EP2105069A1
EP2105069A1 EP08005511A EP08005511A EP2105069A1 EP 2105069 A1 EP2105069 A1 EP 2105069A1 EP 08005511 A EP08005511 A EP 08005511A EP 08005511 A EP08005511 A EP 08005511A EP 2105069 A1 EP2105069 A1 EP 2105069A1
Authority
EP
European Patent Office
Prior art keywords
coil springs
coil
coil spring
spring assembly
springs
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.)
Withdrawn
Application number
EP08005511A
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German (de)
English (en)
Inventor
Davor Gecic
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.)
L&P Swiss Holding GmbH
Original Assignee
L&P Swiss 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 L&P Swiss Holding GmbH filed Critical L&P Swiss Holding GmbH
Priority to EP08005511A priority Critical patent/EP2105069A1/fr
Publication of EP2105069A1 publication Critical patent/EP2105069A1/fr
Withdrawn legal-status Critical Current

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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
    • A47C27/065—Spring inlays of special shape
    • 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

Definitions

  • the present invention relates to a coil spring assembly wherein a plurality of coil springs are enclosed within a fabric.
  • Such coil spring assemblies are for example used for manufacturing spring mattresses, and are for example known from US 7,194,777 82 , US 1,250,892 , US 7,178,187 B2 , US 2004/0103479 A1 or US 2004/0128773 A1 .
  • the present invention provides a coil spring assemblies as defined in claim 1 or 8, and corresponding manufacturing methods as defined in claim 17 or 19.
  • the dependent claims define further embodiments and a mattress comprising the coil spring assembly.
  • a coil spring assembly comprising:
  • the coil springs may have frustro-conical shapes, although other shapes are also possible.
  • the fabric may be folded to surround the coil springs, and further connections may be provided to close the fabric along a further connecting line substantially perpendicular to the longitudinal axis of said coil springs. Said further connecting line may be arranged in the vicinity of said first and/or said second ends.
  • two of said connecting lines may run in a V-shape.
  • a coil spring assembly comprising a plurality of first coil springs, each of said first coil springs comprising a first end and a second end, a longitudinal axis being defined between said first end and said second end, a diameter of each coil spring at said first end being greater than a diameter of each coil spring at said second end, a plurality of second coil springs, each of said second coil springs comprising a first end and a second end, a longitudinal axis being defined between said first end and said second end, a diameter of each coil spring at said first end being greater than a diameter at said second end, said first coil springs and said second coil springs being arranged besides each other in an alternating manner with the longitudinal axes of the first coil springs being parallel to the longitudinal axes of the second coil springs such that the first ends of the first coil springs face in the same direction as the second ends of said second coil springs, said first ends of said first coil springs defining a first plane, said second
  • Said second ends of said first coil springs may define a third plane, and said first ends of said second coil springs may define a fourth plane, said fourth plane being spaced apart from said third plane.
  • a distance between said first plane and said second plane may be equal to a distance between said third plane and said fourth plane, although this is not required.
  • a distance between said first plane and said third plane may be equal to a distance between said second plane and said fourth plane.
  • the coil spring assembly may comprise connections connecting opposite sides of said fabric to enclose each of said first and second coil springs in a respective individual pocket.
  • the first coil springs and/or second coil springs may be frustro-conical springs.
  • a dimension of said first coil springs may be equal to a dimension of said second coil springs or, in other words, the first coil springs and the second coil springs may be designed equal, but differ only in their orientation and position within the coil spring assembly. However, the first coil springs may also be designed different from the second coil springs.
  • the coil spring assembly according to the first and/or second aspect may be incorporated in a mattress.
  • Fig. 1 a front view of a coil spring assembly 10 according to a first embodiment of the present invention is shown.
  • Fig. 2 shows a side view of the embodiment of Fig. 1 .
  • a plurality of springs 12 are enclosed by a fabric 11.
  • the fabric is depicted as being transparent to make the springs visible. However, the fabric needs not be transparent, and a non-transparent fabric may be used.
  • Fabric 11 may be made of nonwoven material, woven material, plastic material or any other fabric suitable for enclosing or holding coil springs 12 in place. While in Fig. 1 four coil springs 12 are shown, in embodiments of the present invention any number of coil springs starting from two coil springs up to a hundred coil springs or more may be provided.
  • Coil springs 12 may be made of metal or any other material suitable for forming coil springs.
  • coil springs 12 are frustro-conical coil springs arranged side by side within fabric 11, wherein longitudinal axes 17 of coil springs 12 are substantially parallel. It should be noted that longitudinal axes 17 are not a physical feature of coil springs 12, but are depicted in the Figs. merely for explanatory purposes.
  • coil springs 12 are frustro-conical, their diameter at a first end (bottom end in Figs. 1 and 2 ) is larger than the diameter at a second end (top end in Figs. 1 and 2 ).
  • coil springs 12 are arranged such that their respective first ends face in the same direction, and their respective second ends face in the same direction, such that the orientation of all the coil springs is substantially the same.
  • all second ends are arranged at the bottom, and all first ends are arranged at the top.
  • the fabric 11 is folded around the bottom of the springs and closed with connections 14 running along a straight line substantially perpendicular to the longitudinal axes 17.
  • fabric 11 is a weldable material, and connections 14 are weld spots or strips. Above connections 14 in the embodiment of Figs. 1 and 2 a fabric portion 16 is left.
  • connections 13 are provided along connection lines slanted with respect to the longitudinal axes 17 of springs 12.
  • connections 13 between two springs 12 are arranged in a V-shape substantially following the frustro-conical shape of the springs.
  • other arrangements may be used, for example connections arranged along a single slanted line.
  • connections 14 in the embodiment of Figs. 1 and 2 connections 13 are also weld spots or strips.
  • other connections for connecting different portions of fabric 11 may be used, like application of adhesive, stitching, sewing and the like.
  • Fig. 3 shows a front view
  • Fig. 4 shows a side view of coil spring assembly 20
  • Fig. 5 shows a top view wherein the coil spring assembly is arranged such that two strings of pocketed coil springs are arranged side by side.
  • coil spring assembly 20 of Figs. 3-5 similar to the already described coil spring assembly 10 of Figs. 1 and 2 frustro-conical coil springs 26, 27 are arranged side by side and enclosed by a fabric 21.
  • Conical coil springs 26 and 27 each have a first end, and a second end, a longitudinal axis 31 being defined between the first end and the second end, wherein the longitudinal axis 31 does not correspond to a physical feature but is only used for illustrating and explaining the orientation of coil springs 26, 27.
  • the diameter of coil springs 26, 27 at their respective first ends is larger than the diameter at the respective second ends.
  • the coil springs 26 are oriented in the opposite direction to the coil springs 27. While the longitudinal axes of the coil springs 26 and 27 are parallel, the second ends of the coil springs 26 face in the same direction as the first ends of coil springs 27, and the first ends of coil springs 26 face in the same direction as the second ends of coil springs 27.
  • the individual coil springs 26 and 27 in the embodiment of Figs. 3-5 are arranged in an alternating manner, i.e. with the exception of the start and the end of the string of pocketed coil springs, each coil spring 26 is surrounded by two coil springs 27 and vice versa.
  • coil springs 26 are shifted towards the bottom with respect to coil springs 27.
  • a plane defined by the first ends of coil springs 26 is below a plane defined by the second ends of coil springs 27, and a plane defined by the first ends of coil springs 27 is above a plane defined by the second ends of coil springs 26.
  • This position in the coil spring assembly 20 is secured by folding fabric 21 around the bottom of the springs and connecting opposite sides of fabric 21 at the top end, i.e. the upper side of Fig.
  • connections 29 are closer to the top than connections 28 thus securing a position of coil springs 26 shifted towards the bottom compared with coil springs 27.
  • on the bottom side portions 24 corresponding to positions of coil springs 27 are shifted towards the top with respect to portions 25 corresponding to positions of coil springs 26.
  • Each of coil springs 26, 27 is enclosed in an individual pocket formed by connections 23 running between two adjacent coil springs in a slanted manner with respect to longitudinal axis 31 following the frustro-conical shape of coil springs 26 and 27.
  • connections 23, 28 and 29 individually may be any type of connection suitable for connecting two opposing portions of fabric 21, for example weld spots or strips, continuous weld lines, or connections formed by stitching, sewing, applying adhesive and the like.
  • Fabric 21 may be any suitable material like nonwoven material, woven material or plastic material.
  • Fig. 5 two strings of pocketed coil springs 20A, 20B corresponding to coil spring assembly 20 are shown in a side-by-side arrangement.
  • the coil springs are arranged in a so-called "chess board" pattern such that a coil spring 26 of coil spring assembly 20A is placed adjacent to a coil spring 27 of coil spring assembly 20B.
  • coil spring assembly 20A and coil spring assembly 20B may be portions of the same coil spring assembly 20 which is arranged accordingly, or may be separate coil spring assemblies.
  • adjacent coil spring assemblies 20A and 20B may be fixed to each other for example by glueing or may be arranged without fixation.
  • Coil spring assemblies 10 and 20 discussed with reference to Figs. 1-5 are merely examples of embodiments of the present invention, and a plurality of variations and modifications are possible to form other embodiments of the present invention, some of which will be discussed below.
  • coil spring assemblies 10 and 20 all springs have the same shape.
  • springs of different designs may be used, for example having different dimensions, different spring constants and the like.
  • coil spring assembly 10 different types of springs 12 may be used, or in coil spring assembly 20, coil springs 26 may be different from coil springs 27, different types of coil springs 26 may be used and/or different types of coil springs 27 may be used.
  • coil spring assemblies 10 and 20 frustro-conical springs are shown, other forms of springs having a first end with a diameter greater than a diameter at a second end may be used. Examples for such other spring types which may be used in embodiments of the present invention are shown in Figs. 6 and 7 .
  • a spring 40 suitable for use in embodiments of the present invention comprises a portion with constant diameter 41 and a frustro-conical portion 42.
  • a spring 50 usable in embodiments of the present invention comprises a first constant diameter portion 51, a changing diameter portion 52 and a second constant diameter portion 53, wherein the diameter of portion 53 is smaller than the diameter of portion 51.
  • Other types of springs for example combining the variants shown, are also feasible.
  • the fabric 11 and 21, respectively is folded around the bottom of the coil springs and opposing portions of the fabric are connected by connections 14 and 28, 29, respectively, which are arranged at the top of the assembly.
  • two separate sheets of fabric may be provided which are then connected together by connections e.g. at the top and bottom portions of the structure.
  • the connection(s) may be positioned at a different position than the top or bottom position.
  • a fabric may be folded around the coil springs such that portions of the fabric overlap at a side of the structure, and then connections may be provided at said side. In general, any possibility leading to an enclosing of the coil springs by the fabric is generally possible.
  • adjacent coil springs 12 of Fig. 1 are shifted along their longitudinal axis with respect to each other such that an up and down effect like in coil spring assembly 20 ist created.
  • a fabric and coil springs are provided, the fabric and coil springs for example being the ones already described with respect to Figs. 1-7 .
  • step 61 the coil springs are enclosed in the fabric, and in step 62, connections are formed for forming the individual pockets.
  • the arrangement of the coil springs in the fabric and the connections may be the ones described already with reference to Figs. 1-7 .
  • steps 60, 61 and 62 may be performed in an entangled manner, for example coil springs may be inserted into a fabric one after the other, and after and/or before the insertion the connections around the respective coil springs may be formed.
  • a portion of connections 40 may be formed, then a spring may be inserted in the thus resulting tube-like portion of fabric 11, and then the connections 13 around the inserted coil spring may be formed.
  • an elongated string of pocketed coil springs may be produced.
  • the order may be different, for example both connections 14 and 13 may be formed after inserting the coil springs.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Springs (AREA)
EP08005511A 2008-03-25 2008-03-25 Ensemble de ressort à enroulement Withdrawn EP2105069A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08005511A EP2105069A1 (fr) 2008-03-25 2008-03-25 Ensemble de ressort à enroulement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08005511A EP2105069A1 (fr) 2008-03-25 2008-03-25 Ensemble de ressort à enroulement

Publications (1)

Publication Number Publication Date
EP2105069A1 true EP2105069A1 (fr) 2009-09-30

Family

ID=39683509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005511A Withdrawn EP2105069A1 (fr) 2008-03-25 2008-03-25 Ensemble de ressort à enroulement

Country Status (1)

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EP (1) EP2105069A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107767A1 (fr) 2011-02-09 2012-08-16 Harrison Spinks Components Limited Unité élastique
WO2014152935A1 (fr) 2013-03-14 2014-09-25 Sealy Technology, Llc Ressorts hélicoïdaux internes asymétriques encastrés présentant des orientations de ressorts hélicoïdaux alternées
GB2524228A (en) * 2014-01-30 2015-09-23 Harrison Spinks Components Ltd Pocketed springs
CN107518674A (zh) * 2017-09-15 2017-12-29 广州市联柔机械设备有限公司 一种倾斜式袋装弹簧串及袋装弹簧床芯
RU194207U1 (ru) * 2019-07-02 2019-12-03 Общество с ограниченной ответственностью "ЖИВЫЕ ДИВАНЫ" Ортопедический матрас с блоком независимых пружин
WO2021190058A1 (fr) * 2020-03-27 2021-09-30 迪锐克斯科技无锡有限公司 Nouveau coussin à structure de ressort

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250892A (en) 1916-08-26 1917-12-18 Frithiof N Johnson Spring-mattress.
JPH11128027A (ja) * 1997-10-30 1999-05-18 Dream Sogo Kenkyusho:Kk アサガオスプリングからなるポケットコイル構造体
US20040103479A1 (en) 2002-12-02 2004-06-03 L&P Property Management Company Pocketed bedding or seating product having pockets of differing heights
US20040128773A1 (en) 2002-11-27 2004-07-08 Barber James R. Coil innerspring assembly having varying degrees of firmness
US20050055778A1 (en) * 2003-09-12 2005-03-17 Kuchel Bernhard W. One-sided mattress
US7178187B2 (en) 2004-08-28 2007-02-20 Sealy Technology Llc Asymmetric spring components and innersprings for one-sided mattresses
US7194777B2 (en) 2002-10-29 2007-03-27 Kenneth Edling Pocket mattress with varying height

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250892A (en) 1916-08-26 1917-12-18 Frithiof N Johnson Spring-mattress.
JPH11128027A (ja) * 1997-10-30 1999-05-18 Dream Sogo Kenkyusho:Kk アサガオスプリングからなるポケットコイル構造体
US7194777B2 (en) 2002-10-29 2007-03-27 Kenneth Edling Pocket mattress with varying height
US20040128773A1 (en) 2002-11-27 2004-07-08 Barber James R. Coil innerspring assembly having varying degrees of firmness
US20040103479A1 (en) 2002-12-02 2004-06-03 L&P Property Management Company Pocketed bedding or seating product having pockets of differing heights
US6826796B1 (en) * 2002-12-02 2004-12-07 L&P Property Management Company Pocketed bedding or seating product having strings of springs with vertically offset pockets
US20050055778A1 (en) * 2003-09-12 2005-03-17 Kuchel Bernhard W. One-sided mattress
US7178187B2 (en) 2004-08-28 2007-02-20 Sealy Technology Llc Asymmetric spring components and innersprings for one-sided mattresses

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107767A1 (fr) 2011-02-09 2012-08-16 Harrison Spinks Components Limited Unité élastique
GB2488214A (en) * 2011-02-09 2012-08-22 Harrison Spinks Components Ltd Resilient unit formed from an array of pocketed springs
GB2488214B (en) * 2011-02-09 2013-09-11 Harrison Spinks Components Ltd Resilient unit formed from an array of pocketed springs
JP2014504934A (ja) * 2011-02-09 2014-02-27 ハリソン スピンクス コンポーネンツ リミテッド 弾性ユニット
US11680617B2 (en) 2011-02-09 2023-06-20 Hs Products Ltd Resilient unit
EP2967222A4 (fr) * 2013-03-14 2016-09-21 Sealy Technology Llc Ressorts hélicoïdaux internes asymétriques encastrés présentant des orientations de ressorts hélicoïdaux alternées
AU2014236431B2 (en) * 2013-03-14 2018-06-07 Sealy Technology, Llc Encased asymmetric coil innersprings with alternating coil spring orientations
WO2014152935A1 (fr) 2013-03-14 2014-09-25 Sealy Technology, Llc Ressorts hélicoïdaux internes asymétriques encastrés présentant des orientations de ressorts hélicoïdaux alternées
GB2524228A (en) * 2014-01-30 2015-09-23 Harrison Spinks Components Ltd Pocketed springs
CN107518674A (zh) * 2017-09-15 2017-12-29 广州市联柔机械设备有限公司 一种倾斜式袋装弹簧串及袋装弹簧床芯
WO2019052122A1 (fr) * 2017-09-15 2019-03-21 广州市联柔机械设备有限公司 Chapelet de ressorts ensachés inclinés et noyau de lit à ressorts ensaché s
EP3677149A4 (fr) * 2017-09-15 2020-07-08 Guangzhou Lianrou Machinery & Equipment Co., Ltd. Chapelet de ressorts ensachés inclinés et noyau de lit à ressorts ensachés
US11103085B2 (en) 2017-09-15 2021-08-31 Guangzhou Lianrou Machinery and Equipment Co., Ltd. Inclined pocketed spring string and pocketed spring bed core
RU194207U1 (ru) * 2019-07-02 2019-12-03 Общество с ограниченной ответственностью "ЖИВЫЕ ДИВАНЫ" Ортопедический матрас с блоком независимых пружин
WO2021190058A1 (fr) * 2020-03-27 2021-09-30 迪锐克斯科技无锡有限公司 Nouveau coussin à structure de ressort

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