EP0010703B1 - Nähmaschine mit kontinuierlich angetriebenen endlosen Stoffschiebern - Google Patents

Nähmaschine mit kontinuierlich angetriebenen endlosen Stoffschiebern Download PDF

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Publication number
EP0010703B1
EP0010703B1 EP79104051A EP79104051A EP0010703B1 EP 0010703 B1 EP0010703 B1 EP 0010703B1 EP 79104051 A EP79104051 A EP 79104051A EP 79104051 A EP79104051 A EP 79104051A EP 0010703 B1 EP0010703 B1 EP 0010703B1
Authority
EP
European Patent Office
Prior art keywords
sewing machine
shaft
feeding means
driven
gear unit
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
Application number
EP79104051A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0010703A2 (de
EP0010703A3 (en
Inventor
Franz Hannemann
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Duerkoppwerke 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 Duerkoppwerke GmbH filed Critical Duerkoppwerke GmbH
Publication of EP0010703A2 publication Critical patent/EP0010703A2/de
Publication of EP0010703A3 publication Critical patent/EP0010703A3/xx
Application granted granted Critical
Publication of EP0010703B1 publication Critical patent/EP0010703B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/10—Work-feeding means with rotary circular feed members
    • D05B27/12—Work-feeding means with rotary circular feed members rotating continuously
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet

Definitions

  • Sewing machines of the type mentioned in the preamble of claim 1 are known from US-A-3 071 089.
  • the differential gear is used in this machine to achieve the same feed of both panels. If thickening occurs in the course of the seam, the speed of rotation of the feed wheel, which engages on the flat material side, is reduced by means of the differential gear and the speed of rotation of the feed wheel climbing over the increase is increased. The change in the circulation speeds takes place automatically depending on the level of the thickening occurring in the course of the seam.
  • the machine described in US Pat. No. 3,071,089 does not permit a different change in the rotational speeds of the two feed wheels relative to one another that can be carried out by the operator of the sewing machine, and thus different feed speeds of the upper compared to the lower fabric web that necessarily occur.
  • sewing machines have been known for a long time (DE-PS 13 364), in which the known lower hopper transport interacts with a likewise hopping upper transport.
  • Sewing machines of this type in which the feed size of one fabric pusher can be changed independently of the other fabric pusher, all work with intermittent material transport.
  • By changing the feed size of one, usually the upper slide it can be achieved that when sewing two-layer material, a layer of material can be stowed in sections, with the purpose, for. B. Incorporate fullness.
  • Intermittently working fabric slides such as have been used for sewing machines with a device for multi-width distribution, have the system-related disadvantage that the moving masses of the upper and lower fabric slides are not the same.
  • the invention is based on the technical object of avoiding the technical disadvantages indicated and of creating a sewing machine with continuously driven upper and lower fabric slides which operate at different transport speeds in order to maintain the fabric width.
  • Reference number 1 denotes the outline of a sewing machine, for example an industrial high-speed sewing machine, which - apart from the subject matter of the invention, the regulated drive of the fabric pusher - is of conventional construction.
  • the slider 12, 20 for the work piece 2 (Fig. 1) are described in more detail, upper and lower belt transports, which receive their driving force from the drive shaft 3 via several intermediate shafts and gears.
  • Of the drive shaft 3 only its outer stub shaft is shown, on which the pulley 5 and the handwheel 7 are arranged.
  • the drive shaft 3 is driven by a drive belt, not shown, via the pulley 5, which in turn is driven by a sewing machine motor, also not shown.
  • the torque of the drive shaft 3 is transmitted through a reduction gear 4 to the higher shaft 6.
  • the shaft 6 is connected by a pin 8 to the planet carrier 9 of a differential gear of known construction.
  • the shaft 10 which is mounted on the one hand in the sewing machine arm and on the other hand in the shaft 6, drives the upper joints via the universal joints 11 and 11 'and the shaft 23 Fabric pusher 12.
  • the bevel gear 13 of the differential gear is fixedly connected to the shaft 10, while the bevel gear 14 opposite the bevel gear 13 is arranged to move freely on the shaft 10 and is positively connected to a belt pulley 15 via the shoulder 14 '.
  • the belt pulley 15 drives the lower fabric slide 20 via the belt drives 16 and 17 with the interposition of the shafts 18 and 19.
  • the speed ratio of the one to the other driven shaft 10 or 18 is determined by a continuously variable transmission connected between these shafts.
  • this is designed as a friction gear. It consists of the friction disk 24, which is firmly connected to shaft 10, and the friction disk 25, which is firmly connected to shaft 18, which are parallel to one another and which are connected to one another in a contact-locking manner by the transmission disk 26, which is perpendicular to them.
  • the known friction gear is shown in Fig. 1 in its neutral position, i. H. that the same speeds are transmitted from the shaft 6 to the shafts 23, 18 and 19 and that both material slides 12 and 20 are driven at the same speed.
  • the transmission friction disk 26 is located exactly at the center of the distance from the shaft 10 to the shaft 18. From this central position, the transmission friction disk 26, which is designed as a sliding wheel and is mounted on the spindle 27, can be moved up or down after turning the adjusting knob 28 . It is functionally essential for the friction wheel transmission that the shaft 18 is displaced axially under the influence of the spring 29.
  • the speed change that occurs after the transmission friction disk 26 has been displaced exerts a reaction on the differential gear, so that, in a known manner, movement is compensated for by slight rotation of the four bevel gears 13, 14, 21 and 22, which were previously stationary relative to one another. This results in the fact known for a differential gear that the speeds of the shafts 10 and 18 now behave inversely proportional to one another, i. H.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP79104051A 1978-11-06 1979-10-19 Nähmaschine mit kontinuierlich angetriebenen endlosen Stoffschiebern Expired EP0010703B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2848123A DE2848123C2 (de) 1978-11-06 1978-11-06 Nähmaschine mit einem oberen und einem unteren Transportband
DE2848123 1978-11-06

Publications (3)

Publication Number Publication Date
EP0010703A2 EP0010703A2 (de) 1980-05-14
EP0010703A3 EP0010703A3 (en) 1980-05-28
EP0010703B1 true EP0010703B1 (de) 1982-05-26

Family

ID=6054005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104051A Expired EP0010703B1 (de) 1978-11-06 1979-10-19 Nähmaschine mit kontinuierlich angetriebenen endlosen Stoffschiebern

Country Status (4)

Country Link
US (1) US4311106A (enrdf_load_stackoverflow)
EP (1) EP0010703B1 (enrdf_load_stackoverflow)
JP (1) JPS55106192A (enrdf_load_stackoverflow)
DE (1) DE2848123C2 (enrdf_load_stackoverflow)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048012C2 (de) * 1978-11-06 1985-01-03 Dürkoppwerke GmbH, 4800 Bielefeld Nähmaschine mit von einer Armwelle und mindestens einer weiteren Welle angetriebenem oberen und unteren Band
DE3130372C2 (de) * 1980-08-02 1986-01-02 Aisin Seiki K.K., Kariya, Aichi Stickmaschine
DE3036510C2 (de) * 1980-09-27 1982-11-18 Dürkoppwerke GmbH, 4800 Bielefeld Automatisch ansteuerbare Kupplung zum schaltbaren Antrieb der Armwelle an einer Nähmaschine
IT1140105B (it) * 1980-12-19 1986-09-24 Duerkoppwerke Macchina da cicire con uno spingi stoffa superiore ed uno inferiore
US4421044A (en) * 1982-03-16 1983-12-20 Carl Schmale Kg Automatic method and apparatus for feeding a textile piece to a sewing machine
DE3344761C1 (de) * 1983-12-10 1985-07-18 Union Special Gmbh, 7000 Stuttgart Nähmaschine
US5152237A (en) * 1990-04-27 1992-10-06 Joseph Galkin Corporation Sewing machine top feed system with conveyor
JPH0540870Y2 (enrdf_load_stackoverflow) * 1990-04-06 1993-10-15
GB2260144B (en) * 1991-10-03 1995-12-06 El Sew Con Ltd Control system for elastic or trims
JPH0563478U (ja) * 1992-02-14 1993-08-24 ヤマトミシン製造株式会社 掬縫ミシンの布地送り装置
AT404603B (de) * 1996-10-04 1999-01-25 Naehtechnik Sahl Ges M B H Antriebsvorrichtung für eine intermittierende förderbewegung
EP0882830B1 (en) * 1997-06-03 2001-11-28 Conti Complett S.p.A. Precision-stitch sewing machine
AT413289B (de) * 2003-11-25 2006-01-15 Sahl Johannes Nähmaschine
JP2014087441A (ja) * 2012-10-30 2014-05-15 Brother Ind Ltd ミシン
TWI468568B (zh) * 2013-08-23 2015-01-11 Chee Siang Ind Co Ltd The conveyor of the sewing machine
CN105316876A (zh) * 2014-09-02 2016-02-10 保定泽泰服装机械制造有限公司 一种缝纫机的同步带送布机构
JP6425550B2 (ja) * 2015-01-16 2018-11-21 Juki株式会社 脇縫いミシン

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR781428A (fr) * 1934-02-07 1935-05-15 Procédé de formation de nappes de filaments de kapok ou analogues et appareillage pour l'application de ce procédé
US2244691A (en) * 1937-07-23 1941-06-10 Murray Corp Apparatus for and method of sewing plaits
DE975242C (de) * 1954-03-16 1961-10-12 Duerkoppwerke Ag Naehmaschine mit einer senkrecht auf und ab bewegten Nadelstange und mit einem oberen und einem unteren Stoffschieber
US2974617A (en) * 1956-09-14 1961-03-14 Singer Mfg Co Feeding mechanisms for sewing machines
DE1114690B (de) * 1959-05-27 1961-10-05 Xaver Fendt & Co Maschinen U S Regulaer-Kettenstich-Naehmaschine
DE1086982B (de) * 1959-09-19 1960-08-11 Pfaff Ag G M Naehmaschine mit Schiebradtransport
US3368507A (en) * 1964-10-31 1968-02-13 Pfaff Ag G M Feeding mechanism for sewing machines
US3800719A (en) * 1972-09-08 1974-04-02 Jetsew Inc Sewing machine material feed mechanism
US4109595A (en) * 1975-06-13 1978-08-29 Institut Textile De France Multidifferential device
US4037546A (en) * 1976-07-27 1977-07-26 Union Special G.M.B.H. Sewing machine apparatus for aligning and sewing pieces of textile fabric or the like

Also Published As

Publication number Publication date
US4311106A (en) 1982-01-19
JPS55106192A (en) 1980-08-14
DE2848123A1 (de) 1980-05-14
EP0010703A2 (de) 1980-05-14
EP0010703A3 (en) 1980-05-28
JPS6238997B2 (enrdf_load_stackoverflow) 1987-08-20
DE2848123C2 (de) 1983-10-06

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