EP1209273A3 - Stitch forming process for an embroidery machine and embroidery machine for performing said process - Google Patents

Stitch forming process for an embroidery machine and embroidery machine for performing said process Download PDF

Info

Publication number
EP1209273A3
EP1209273A3 EP01811102A EP01811102A EP1209273A3 EP 1209273 A3 EP1209273 A3 EP 1209273A3 EP 01811102 A EP01811102 A EP 01811102A EP 01811102 A EP01811102 A EP 01811102A EP 1209273 A3 EP1209273 A3 EP 1209273A3
Authority
EP
European Patent Office
Prior art keywords
roller
stitch
clutch
thread
embroidery machine
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
EP01811102A
Other languages
German (de)
French (fr)
Other versions
EP1209273B1 (en
EP1209273A2 (en
Inventor
Franz Lässer
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.)
Franz Laesser AG
Original Assignee
Franz Laesser AG
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 Franz Laesser AG filed Critical Franz Laesser AG
Publication of EP1209273A2 publication Critical patent/EP1209273A2/en
Publication of EP1209273A3 publication Critical patent/EP1209273A3/en
Application granted granted Critical
Publication of EP1209273B1 publication Critical patent/EP1209273B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/08—Thread-tensioning arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

In a process to form a stitch, a sewing machine has a supply of thread (11) withdrawn over a roller (13) aided by a roller power drive. The torque applied to the roller is regulated especially in accordance with the stitching program data for each individual type of stitch. Also claimed is a sewing machine with a clutch (31) drive to the roller (13). The roller clutch is engaged by thread movement of the roller. The roller is powered by the needle plunger drive shaft (41), moving the swivel lever (43) and rod (42) synchronised with the needle action. When thread is static the clutch ensures that torque can only be applied in one direction via the gear (39,40) to the roller (13). Because the same time lapse for each cycle is always the same irrespective of the stitch length, the roller turns at higher speeds for longer stitches than shorter. The clutch is regulated in accordance with the type of stitch required and maintains the thread tension irrespective of the stitch length.
EP01811102A 2000-11-21 2001-11-16 Stitch forming process for an embroidery machine and embroidery machine for performing said process Expired - Lifetime EP1209273B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH22632000 2000-11-21
CH22632000 2000-11-21

Publications (3)

Publication Number Publication Date
EP1209273A2 EP1209273A2 (en) 2002-05-29
EP1209273A3 true EP1209273A3 (en) 2003-01-02
EP1209273B1 EP1209273B1 (en) 2004-01-21

Family

ID=4568278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01811102A Expired - Lifetime EP1209273B1 (en) 2000-11-21 2001-11-16 Stitch forming process for an embroidery machine and embroidery machine for performing said process

Country Status (4)

Country Link
EP (1) EP1209273B1 (en)
AT (1) ATE258244T1 (en)
DE (1) DE50101351D1 (en)
TR (1) TR200400548T4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE382727T1 (en) * 2001-09-19 2008-01-15 Laesser Franz Ag EMBROIDERY MACHINE, IN PARTICULAR SHIP EMBROIDERY MACHINE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB177317A (en) * 1921-01-26 1922-03-30 Lionel Stephen Disney A new or improved thread control and thread feeding mechanism for embroidery and like machines
CH115089A (en) * 1925-04-22 1926-06-01 Alfred Hertenstein Device on shuttle embroidery machines to reduce the thread tension required to switch the thread roller.
EP0014897A1 (en) * 1979-02-20 1980-09-03 August Heinzle Device for textile machines
EP0666351A1 (en) * 1994-02-04 1995-08-09 Saurer Sticksysteme Ag Method and apparatus for embroidering on an embroidering machine with shuttles
EP0795638A1 (en) * 1996-03-15 1997-09-17 Franz Lässer AG Method and apparatus for forming the stitch in a Schiffli embroidery machine
EP0906982A2 (en) * 1997-10-03 1999-04-07 Hiraoka Kogyo Co. Ltd. Embroidery/lace machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB177317A (en) * 1921-01-26 1922-03-30 Lionel Stephen Disney A new or improved thread control and thread feeding mechanism for embroidery and like machines
CH115089A (en) * 1925-04-22 1926-06-01 Alfred Hertenstein Device on shuttle embroidery machines to reduce the thread tension required to switch the thread roller.
EP0014897A1 (en) * 1979-02-20 1980-09-03 August Heinzle Device for textile machines
EP0666351A1 (en) * 1994-02-04 1995-08-09 Saurer Sticksysteme Ag Method and apparatus for embroidering on an embroidering machine with shuttles
EP0795638A1 (en) * 1996-03-15 1997-09-17 Franz Lässer AG Method and apparatus for forming the stitch in a Schiffli embroidery machine
EP0906982A2 (en) * 1997-10-03 1999-04-07 Hiraoka Kogyo Co. Ltd. Embroidery/lace machine

Also Published As

Publication number Publication date
ATE258244T1 (en) 2004-02-15
DE50101351D1 (en) 2004-02-26
EP1209273B1 (en) 2004-01-21
TR200400548T4 (en) 2004-06-21
EP1209273A2 (en) 2002-05-29

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