EP0624545B1 - Method of producing a spring insert - Google Patents

Method of producing a spring insert Download PDF

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Publication number
EP0624545B1
EP0624545B1 EP93610032A EP93610032A EP0624545B1 EP 0624545 B1 EP0624545 B1 EP 0624545B1 EP 93610032 A EP93610032 A EP 93610032A EP 93610032 A EP93610032 A EP 93610032A EP 0624545 B1 EP0624545 B1 EP 0624545B1
Authority
EP
European Patent Office
Prior art keywords
string
strings
length
fed
spring insert
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.)
Expired - Lifetime
Application number
EP93610032A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0624545A1 (en
Inventor
Per Buttenschon
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.)
TOLEDO FJEDERINDLAEG AS
Original Assignee
TOLEDO FJEDERINDLAEG AS
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 TOLEDO FJEDERINDLAEG AS filed Critical TOLEDO FJEDERINDLAEG AS
Publication of EP0624545A1 publication Critical patent/EP0624545A1/en
Application granted granted Critical
Publication of EP0624545B1 publication Critical patent/EP0624545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 or spring units therefor
    • A47C27/063—Spring inlays or spring units therefor wrapped or otherwise protected
    • A47C27/064—Pocketed springs
    • 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
    • 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
    • B68G2009/005—Devices for turning the springs 90° inside the pockets

Definitions

  • the invention relates to a method of producing a spring insert from strings of springs which are individually encased in a pocket of material, so-called pocketed springs, said strings having an adhesive applied and being compressed to form the spring insert, said strings having different resiliency and/or damping characteristics, and said strings are cut from at least one length, and where each length is fed to a cutting mechanism.
  • the said method is known from EP-A-0089789, and by this known method it is possible in a surprisingly simple manner to produce a spring insert with ideal characteristics, in that there can be built up a spring insert which is in accordance with the load on the individual parts of the spring insert. This permits production of spring inserts, and herewith mattresses, cushions etc., which are in complete accordance with the degree of support they are desired to provide.
  • none of the mentioned applications shows a suitable way of orienting the length before applying the adhesive so that the lengths and the strings can be conveyed without risk for being displaced in relation to the support and one another.
  • this can be effected in a simple manner, such as disclosed in the characterising portion of the claim, when the lengths are arranged so that they are fed with the longitudinal axes of the pocket-springs being horizontal, and thereafter the string are tipped 90° before applying the adhesive, whereby the length and the string are conveyed without risk of displacement in relation to their support or one another.
  • a plant for the execution of the method is illustrated in fig. 1.
  • the plant comprises a feeding section 1, which will be described in more detail with reference to figs. 2 and 3, a turning section 2, which will be described in more detail with reference to figs. 4 and 5, and an adhesive application section 3 and a compression section 4 which will be described in more detail with reference to figs. 6 and 7.
  • the feeding section 1 consists of a frame 5, on the top of which are supported a number of wheels 6 corresponding to the number of pocket-spring lengths 7, 8.
  • lengths 7 and 8 can have different resiliency and/or damping characteristics, so that in the example embodiment shown there can be produced a finished spring insert 9 consisting of two different types of pocket-springs.
  • the wheels 6 are preferably sprocket-formed so that the lengths 7 and 8 can be fed by rotation of the wheels.
  • a shield 10 can be mounted over a part of the wheels' circumference.
  • each set of wheels 6 there is mounted a further set of drive rollers 11 for each length 7, 8, so that each individual length can be fed in a precise manner.
  • the wheel sets 6, 11 will be synchronized by means of a chain drive or the like.
  • a cutting mechanism 12 comprising two jaws 13 which can be moved in a reciprocating manner by means of an actuator 14, so that the lengths 7 and 8 can be fed between the jaws 13 when these are separated.
  • the drive roller 11 can feed a certain number of pockets in the length 7 and 8 so that a given number of pockets, corresponding to the length of the string 15, will form one element in the finished spring insert 9.
  • the jaws 13 are closed and the length is cut over either mechanically or thermally.
  • This conveyor carries the string 15 further to an angularly-extending belt 17 which leads the string 15 forward to the turning section 2.
  • this section is configured with a conveyor belt 18 on which the string 15 is fed forward in the section.
  • a boom 19 operated by actuators 20 pushes the string over the side where it falls down on a side-stop 21. As shown in fig. 5, the side-stop is thereafter tipped so that the string falls down into a gutter 22.
  • the string 15 is fed into a chain conveyor 23 which is moved from the turning section 2 and further through the compression section 4.
  • the conveyor 23 feeds the string 15 past an adhesive application device 24 which can be of any suitable type.
  • a fluid adhesive is advantageous, the reason being that this can be pumped out through nozzles via a pipe 25. This makes it possible for the adhesive to be pumped out in shots, and the adhesive 26 can hereby be applied to the outer side of each pocket-spring in the string as this passes the nozzle(s).
  • the chain conveyor 23 stops when the string 15 is standing opposite a pusher arm 27, this being provided with an end profile which enables it to lie up against the string 15.
  • an actuator 28 can feed the string 15 with adhesive 26 on to an underlayer 29 where it can be pushed up against preceding strings for gluing together with the outermost string.
  • the spring insert 9 is hereby built up of strings 15 which one after another are glued together to form the finished insert 9.
  • the lengths 7 and 8 with the desired resiliency and damping characteristics and dimensions are fed to the plant in the form of endless lengths of pocket-springs 7 and 8.
  • the plant is controlled in a commonly-known manner by microprocessors so that it is possible to select to feed strings of any desired length, said strings then being tipped upright and receiving an application of adhesive before the final compression.
  • the whole method is controlled so that all movements are synchronized, whereby strings can be produced at a very high rate of production, the reason being that the whole of the flow can be effected at the same tempo.
  • pocket-spring strings is determined by the activation of the sets of feeding wheels, whereby strings can be produced at normal rates of production, even when there are frequent changes between the strings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP93610032A 1993-05-14 1993-05-19 Method of producing a spring insert Expired - Lifetime EP0624545B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK93568A DK56893D0 (da) 1993-05-14 1993-05-14 Fremgangsmaade til fremstilling af et fjederindlaeg
DK568/93 1993-05-14

Publications (2)

Publication Number Publication Date
EP0624545A1 EP0624545A1 (en) 1994-11-17
EP0624545B1 true EP0624545B1 (en) 1997-09-17

Family

ID=8095017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93610032A Expired - Lifetime EP0624545B1 (en) 1993-05-14 1993-05-19 Method of producing a spring insert

Country Status (4)

Country Link
EP (1) EP0624545B1 (da)
AT (1) ATE158263T1 (da)
DE (1) DE69314010T2 (da)
DK (2) DK56893D0 (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103502137A (zh) * 2011-05-20 2014-01-08 施普尔公司 用于传输弹簧串的装置和方法
CN103950885B (zh) * 2014-04-25 2015-08-05 广州市联柔机械设备有限公司 一种新型袋装弹簧生产制造装置及袋装弹簧生产方法
US11845651B2 (en) 2019-05-14 2023-12-19 Nv Bekaert Sa Spool of pocketed springs

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2377095A (en) * 1995-03-05 1996-09-23 New Technology I Lidkoping Ab Apparatus for the manufacture of innerspring constructions
DE19529911A1 (de) * 1995-08-15 1997-02-20 Spintex Ag Verfahren zum Zuführen von Taschenfederschlangen oder einzelnen Taschenfederkernen
AU2567897A (en) * 1996-04-03 1997-10-29 Toledo Fjederindlaeg A/S Method and means for the production of a spring insert
GB9905964D0 (en) * 1999-03-17 1999-05-12 Springform Technology Limited Method and apparatus for manufacturing innerspring assemblies
GR1004324B (el) 2000-11-29 2003-09-05 Calino Α.Ε. Μεθοδος και μηχανη συναρμολογησης στρωματων απο λωριδες εγκλωβισμενων ελατηριων
EP1387814A1 (de) * 2001-05-16 2004-02-11 Spühl AG St. Gallen Verfahren und vorrichtung zum transport von eingetaschten federn zu einer federkernmontageeinrihtung
US6718726B1 (en) 2001-10-09 2004-04-13 Dreamwell Ltd. Method and apparatus for storing and transporting strings of pocketed coils
GB0519009D0 (en) * 2005-09-17 2005-10-26 Harrison Bedding Ltd Pocketted spring units
GB0823067D0 (en) 2008-12-18 2009-01-28 Springform Technology Ltd Improvements related to the manufacture of coil springs
ITRN20130026A1 (it) * 2013-06-24 2014-12-25 Flexfor S R L Struttura per materasso, macchina e metodo di realizzazione di detta struttura per materasso.
US11109686B2 (en) * 2018-06-13 2021-09-07 L&P Property Management Company Method of making a continuous string of pocketed springs
US12054381B2 (en) * 2023-01-11 2024-08-06 L&P Property Management Company Method of manufacturing partially foam encased pocketed spring assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1192390B (it) * 1982-03-17 1988-04-13 Permaflex Spa Procedimento per la produzione di manufatti elastici per la formazione di materassi od altro,e materassi con tale procedimento realizzati
US4566926A (en) * 1984-03-09 1986-01-28 Simmons U.S.A. Corporation Method and apparatus for manufacturing innerspring constructions
US4578834A (en) * 1984-03-09 1986-04-01 Simmons U.S.A. Corporation Innerspring construction
BE1003537A3 (nl) * 1989-10-05 1992-04-14 B Linea Werkwijze en inrichting voor het vervaardigen van veerconstructies voor matrassen, kussens en dergelijke.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103502137A (zh) * 2011-05-20 2014-01-08 施普尔公司 用于传输弹簧串的装置和方法
CN103502137B (zh) * 2011-05-20 2015-04-08 施普尔公司 用于传输弹簧串的装置和方法
CN103950885B (zh) * 2014-04-25 2015-08-05 广州市联柔机械设备有限公司 一种新型袋装弹簧生产制造装置及袋装弹簧生产方法
US11845651B2 (en) 2019-05-14 2023-12-19 Nv Bekaert Sa Spool of pocketed springs

Also Published As

Publication number Publication date
DK56893D0 (da) 1993-05-14
DK0624545T3 (da) 1998-03-09
EP0624545A1 (en) 1994-11-17
ATE158263T1 (de) 1997-10-15
DE69314010D1 (de) 1997-10-23
DE69314010T2 (de) 1998-04-16

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