US20070119355A1 - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
US20070119355A1
US20070119355A1 US10/580,180 US58018004A US2007119355A1 US 20070119355 A1 US20070119355 A1 US 20070119355A1 US 58018004 A US58018004 A US 58018004A US 2007119355 A1 US2007119355 A1 US 2007119355A1
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US
United States
Prior art keywords
drive
gearwheel
gearwheels
belt
driven
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.)
Abandoned
Application number
US10/580,180
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English (en)
Inventor
Johannes Sahl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20070119355A1 publication Critical patent/US20070119355A1/en
Abandoned 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
    • D05B27/14—Work-feeding means with rotary circular feed members rotating discontinuously
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/10—Work-feeding means with rotary circular feed members

Definitions

  • the invention relates to a sewing machine with a sewing needle drive and a forward feed drive for the garment, comprising a continuous rotational drive, a belt conveyor for the garment and an intermediate drive with two gearwheels disposed between the rotational drive and the belt conveyor, of which the gearwheel on the driven side can be twisted relative to the one on the drive side with overfeed or underfeed by means of a control lever driven by an eccentric drive depending on the sewing needle drive.
  • the invention is thus based on the object of providing a sewing machine of the kind mentioned above in such a way that a comparatively simple and operationally reliable construction is obtained.
  • the gearwheel on the driven side of the intermediate drive is swiveled about the axis of the gearwheel on the drive side, it is necessary to take this swiveling movement into account in the drive connection between the gearwheel on the driven side and the belt conveyor for the forward feed of the garment.
  • the gearwheel on the driven side of the intermediate drive could drive a gear stage with an uneven number of gearwheels, of which the one on the driven side is held coaxially relative to the gearwheel on the drive side of the intermediate drive.
  • the rotational movement for the belt conveyor can be taken from said stationary gearwheel on the driven side of the gear stage. Simpler constructional conditions are obtained however when the drive connection between the gearwheel on the driven side of the intermediate drive and the belt conveyor comprises a belt drive whose deflection pulleys are held coaxially to the two gearwheels of the intermediate drive.
  • control lever When the control lever is arranged as connecting rod of the eccentric drive whose eccentric shaft extends parallel to the drive shaft of the sewing needle drive and is connected with the same by means of a belt drive, compact constructional conditions can also be created in the area of the control lever drive. Moreover, by arranging. an eccentric drive which is separate from the drive shaft of the sewing needle drive, an arrangement of the control lever drive is facilitated which is adjusted to the respective constructional conditions.
  • FIG. 1 shows a sewing machine in accordance with the invention with a sewing needle drive and a forward feed drive for the garment in a schematic side view;
  • FIG. 2 shows the sewing needle drive an the forward feed drive according to FIG. 1 in a front view on an enlarged scale
  • FIGS. 3 to 5 show the sewing needle drive and the forward feed drive in an illustration corresponding to FIG. 2 , but with different working positions.
  • the sewing machine 1 which is only indicated with the dot-dash line, comprises a needle bar 2 for receiving sewing needles 3 and a sewing needle drive 4 which consists of a drive shaft 5 and a crank mechanism 6 which acts upon the needle bar 2 .
  • a belt conveyor 7 is provided for the forward feed of the garment, which conveyor is composed of two parallel conveyor belts 8 between which the needles 3 penetrate the garment.
  • the drive for the belt conveyor 7 is derived from a continuous rotational drive 9 which is preferably driven electrically and is arranged on a base plate.
  • An intermediate drive 10 is driven by said rotational drive, which intermediate drive comprises two mutually combing gearwheels 11 and 12 .
  • gearwheel 11 on the driven side of the intermediate drive 10 is fixedly situated on the driven shaft of rotational drive 9
  • gearwheel 12 on the driven side is rotatably held in a fixed link 13 which is held in a freely rotatable manner on the driven shaft of the rotational drive 9
  • a control lever 14 is linked to the fixed link 13 , which lever forms the connecting rod of an eccentric drive 15 whose eccentric shaft 16 is in drive connection by way of a belt drive 17 with the parallel drive shaft 5 of the sewing needle drive 4 .
  • the drive connection to the belt conveyor 7 for the garment is derived from the intermediate drive 10 via a belt drive 18 which is used for compensating the oscillating movement of the fixed link 13 .
  • the shaft 19 on the driven side of the belt drive 18 is held coaxially to the driven shaft of the rotational drive 9 , so that the swiveling movement of the shaft 20 of said belt drive 18 is compensated, which shaft is on the drive side and is connected to gearwheel 12 , and the continuing drive train can start from the stationarily held shaft 19 .
  • Said drive train is formed in accordance with the illustrated embodiment by a further belt 21 , by means of whose driven shaft 22 the conveyor belts 8 of the belt conveyor 7 are driven.
  • the fixed link 13 assumes a middle swiveling position in the upper and lower dead center position of the crank mechanism 6 of the drive 4 for the garment, from which it is deflected according to FIGS. 2 and 4 depending on the respective direction of movement of the needle bar 2 to the one or other side. Since the two gearwheels 11 and 12 which are connected with each other via the fixed link 13 comb one another, a swiveling of the fixed link 13 leads to a mutual twisting of said gearwheels 11 and 12 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US10/580,180 2003-11-25 2004-11-25 Sewing machine Abandoned US20070119355A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0188403A AT413289B (de) 2003-11-25 2003-11-25 Nähmaschine
ATA1884/2003 2003-11-25
PCT/AT2004/000414 WO2005052240A1 (de) 2003-11-25 2004-11-25 Nähmaschine

Publications (1)

Publication Number Publication Date
US20070119355A1 true US20070119355A1 (en) 2007-05-31

Family

ID=34624233

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/580,180 Abandoned US20070119355A1 (en) 2003-11-25 2004-11-25 Sewing machine

Country Status (6)

Country Link
US (1) US20070119355A1 (de)
EP (1) EP1687473A1 (de)
JP (1) JP2007512045A (de)
CN (1) CN1886543A (de)
AT (1) AT413289B (de)
WO (1) WO2005052240A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6894251B2 (ja) * 2017-02-15 2021-06-30 Juki株式会社 ミシン
CN110241521A (zh) * 2019-07-03 2019-09-17 东莞创辉缝纫机有限公司 一种辘脚机的送料驱动结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853078A (en) * 1972-04-11 1974-12-10 Rimoldi C Spa Virginio Sewing machine with upper roller feeding device adjustable independently from the feed dog
US4157686A (en) * 1977-07-23 1979-06-12 Pfaff Industriemaschinen Gmbh Sewing assembly with a feed drive for a work holder
US4413582A (en) * 1979-09-19 1983-11-08 Kochs Adler Ag Workpiece feeding device for a sewing machine
US4417535A (en) * 1980-12-19 1983-11-29 Durkoppwerke Gmbh Sewing machine belt feeder with tensioner
US4924788A (en) * 1989-03-22 1990-05-15 Capel Incorporated Hook timing arrangement for zig zag sewing machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678010A (en) * 1951-03-28 1954-05-11 Singer Mfg Co Feeding mechanism for sewing machines
DE2848123C2 (de) * 1978-11-06 1983-10-06 Duerkoppwerke Gmbh, 4800 Bielefeld Nähmaschine mit einem oberen und einem unteren Transportband
DE3447751A1 (de) * 1984-12-21 1986-07-03 Manfred 8024 Oberhaching Kropf Stoffvorschub-zusatzvorrichtung
DE9011178U1 (de) * 1990-07-30 1990-10-04 Duerkopp Adler Ag, 4800 Bielefeld, De
AT404603B (de) * 1996-10-04 1999-01-25 Naehtechnik Sahl Ges M B H Antriebsvorrichtung für eine intermittierende förderbewegung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853078A (en) * 1972-04-11 1974-12-10 Rimoldi C Spa Virginio Sewing machine with upper roller feeding device adjustable independently from the feed dog
US4157686A (en) * 1977-07-23 1979-06-12 Pfaff Industriemaschinen Gmbh Sewing assembly with a feed drive for a work holder
US4413582A (en) * 1979-09-19 1983-11-08 Kochs Adler Ag Workpiece feeding device for a sewing machine
US4417535A (en) * 1980-12-19 1983-11-29 Durkoppwerke Gmbh Sewing machine belt feeder with tensioner
US4924788A (en) * 1989-03-22 1990-05-15 Capel Incorporated Hook timing arrangement for zig zag sewing machines

Also Published As

Publication number Publication date
JP2007512045A (ja) 2007-05-17
WO2005052240A1 (de) 2005-06-09
EP1687473A1 (de) 2006-08-09
ATA18842003A (de) 2005-06-15
AT413289B (de) 2006-01-15
CN1886543A (zh) 2006-12-27

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Legal Events

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE