CA2368852A1 - Method and system for forming strings of pocketed coil springs - Google Patents

Method and system for forming strings of pocketed coil springs Download PDF

Info

Publication number
CA2368852A1
CA2368852A1 CA002368852A CA2368852A CA2368852A1 CA 2368852 A1 CA2368852 A1 CA 2368852A1 CA 002368852 A CA002368852 A CA 002368852A CA 2368852 A CA2368852 A CA 2368852A CA 2368852 A1 CA2368852 A1 CA 2368852A1
Authority
CA
Canada
Prior art keywords
springs
fabric
pocketed coil
coil springs
compressed
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.)
Granted
Application number
CA002368852A
Other languages
French (fr)
Other versions
CA2368852C (en
Inventor
Roland Graf
Thomas J. Wells
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.)
Spuehl AG
Original Assignee
Spuhl Ag St. Gallen
Roland Graf
Thomas J. Wells
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23128205&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2368852(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US09/353,483 external-priority patent/US6336305B1/en
Application filed by Spuhl Ag St. Gallen, Roland Graf, Thomas J. Wells filed Critical Spuhl Ag St. Gallen
Publication of CA2368852A1 publication Critical patent/CA2368852A1/en
Application granted granted Critical
Publication of CA2368852C publication Critical patent/CA2368852C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Wire Processing (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chain Conveyers (AREA)
  • Casting Devices For Molds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).
CA002368852A 1999-04-16 2000-03-31 Method and system for forming strings of pocketed coil springs Expired - Fee Related CA2368852C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29322199A 1999-04-16 1999-04-16
US09/293,221 1999-04-16
US09/353,483 1999-07-13
US09/353,483 US6336305B1 (en) 1999-04-16 1999-07-13 System for forming strings of pocketed coil springs
PCT/IB2000/000396 WO2000063113A1 (en) 1999-04-16 2000-03-31 Method and system for forming strings of pocketed coil springs

Publications (2)

Publication Number Publication Date
CA2368852A1 true CA2368852A1 (en) 2000-10-26
CA2368852C CA2368852C (en) 2008-12-16

Family

ID=23128205

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002368852A Expired - Fee Related CA2368852C (en) 1999-04-16 2000-03-31 Method and system for forming strings of pocketed coil springs

Country Status (14)

Country Link
EP (1) EP1171377B2 (en)
JP (1) JP4377074B2 (en)
CN (1) CN1251959C (en)
AT (1) ATE280735T1 (en)
AU (1) AU3318900A (en)
BR (1) BR0009482A (en)
CA (1) CA2368852C (en)
DE (1) DE60015318T3 (en)
ES (1) ES2232431T5 (en)
GB (1) GB2358796B (en)
MX (1) MXPA01010382A (en)
PT (1) PT1171377E (en)
TR (1) TR200102879T2 (en)
WO (1) WO2000063113A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591436B2 (en) * 1999-04-16 2003-07-15 Spuhl Ag St. Gallen Side seam pocketed coil springs
US6260331B1 (en) * 1999-06-17 2001-07-17 Sidhil Technology, Llc Method and apparatus for the manufacture of pocketed springs
GB2358349B (en) * 2000-10-12 2001-12-12 Spuhl Ag St Gallen Method and system for forming strings of pocketed coil springs
SE530089C2 (en) * 2004-10-18 2008-02-26 Stjernfjaedrar Ab Elastic mattress, such as pocket mattress, method of manufacture of such elastic mattress and device for manufacturing such elastic mattress
CN101955150B (en) * 2010-07-30 2012-11-14 严卓晟 Bagged spring machine capable of continuously rolling
EP2565152B1 (en) * 2011-08-30 2014-06-18 Spühl AG Device for forming a hose out of pocket material and method for producing a pocket row of springs
US9427090B2 (en) * 2013-06-19 2016-08-30 L&P Property Management Company Pocketed spring assembly comprising strings of springs having Y-shaped seams
CN106185780A (en) * 2016-06-28 2016-12-07 广州市联柔机械设备有限公司 Double-layer cloth bag spring producing device and method
EP3969409B1 (en) * 2019-05-14 2024-01-24 NV Bekaert SA Spool of pocketed springs
KR102134553B1 (en) * 2020-02-13 2020-07-16 김선용 Pocket Spring Auto Alignment Entry
CN112596161B (en) * 2020-12-21 2023-03-24 成都市加朗星科技有限公司 Multi-layer structured spot-size converter and implementation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439977A (en) 1977-05-05 1984-04-03 Simmons U.S.A. Corporation Method and apparatus for making a series of pocketed coil springs
US4234983A (en) 1978-10-02 1980-11-25 Simmons Company Thermally welded spring pockets
US4584023A (en) † 1984-10-31 1986-04-22 Chevron Research Company Method for producing industrial asphalts without air-blowing using phytic acid
US5613287A (en) 1995-06-07 1997-03-25 Simmons Company Method for forming strings of pocketed springs
US5749133A (en) * 1996-09-10 1998-05-12 Simmons Company Method and apparatus for forming strings of pocketed springs
SE9704746L (en) * 1997-12-19 1998-11-09 Stjernfjaedrar Ab Double spring mattress and manufacturing method for such a mattress

Also Published As

Publication number Publication date
DE60015318T2 (en) 2005-11-24
GB0108713D0 (en) 2001-05-30
EP1171377B1 (en) 2004-10-27
CN1355766A (en) 2002-06-26
EP1171377B2 (en) 2012-06-13
AU3318900A (en) 2000-11-02
EP1171377A1 (en) 2002-01-16
DE60015318D1 (en) 2004-12-02
BR0009482A (en) 2002-03-26
TR200102879T2 (en) 2002-04-22
GB2358796A (en) 2001-08-08
ES2232431T3 (en) 2005-06-01
ATE280735T1 (en) 2004-11-15
JP4377074B2 (en) 2009-12-02
CA2368852C (en) 2008-12-16
WO2000063113A1 (en) 2000-10-26
JP2002541943A (en) 2002-12-10
ES2232431T5 (en) 2012-10-22
CN1251959C (en) 2006-04-19
MXPA01010382A (en) 2002-03-27
DE60015318T3 (en) 2012-11-08
GB2358796B (en) 2001-12-12
PT1171377E (en) 2005-04-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170331