EP2138619B1 - Transporteur destiné au transport de produits de couture pendant le fonctionnement d'une machine à coudre - Google Patents

Transporteur destiné au transport de produits de couture pendant le fonctionnement d'une machine à coudre Download PDF

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Publication number
EP2138619B1
EP2138619B1 EP09006768A EP09006768A EP2138619B1 EP 2138619 B1 EP2138619 B1 EP 2138619B1 EP 09006768 A EP09006768 A EP 09006768A EP 09006768 A EP09006768 A EP 09006768A EP 2138619 B1 EP2138619 B1 EP 2138619B1
Authority
EP
European Patent Office
Prior art keywords
transporter
needle
wall
section
sewing
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.)
Not-in-force
Application number
EP09006768A
Other languages
German (de)
English (en)
Other versions
EP2138619A1 (fr
Inventor
Christoph Heckner
Gerd Langreck
Dorjan Krljar
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.)
Duerkopp Adler AG
Original Assignee
Duerkopp Adler 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 Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP2138619A1 publication Critical patent/EP2138619A1/fr
Application granted granted Critical
Publication of EP2138619B1 publication Critical patent/EP2138619B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means

Definitions

  • the invention relates to a conveyor for transporting sewing material during the operation of a sewing machine according to the preamble of claim 1. Furthermore, the invention relates to a sewing machine with such a conveyor.
  • Such a carrier is among others from the JP 2004/174120 A known.
  • a fabric feeder with two sliders known between which a stitch hole is limited to a sewing needle.
  • An adjustment device with a bridge in the form of a cam member connects the two feed valves such that a distance between them is adjustable.
  • the GB 209,039 shows cloth slide mechanisms for sewing machines.
  • an adjustable conveyor wall provides the ability to effectively secure the sewing needle in operation on the side facing away from the stitch forming tool, which interacts with the needle when sewing with the needle, against an undesirable deflection, for example by heavy material.
  • the conveyor wall can be adjusted so that even small deflections of the sewing needle in the direction of the feed dog wall caused that the feed dog wall supports the sewing needle and thus prevents breakage or bending of the sewing needle.
  • the sewing machine can be a single-needle machine or a two-needle machine.
  • two conveyor walls can be provided which, when the feed dog of the two-needle machine is mounted, are respectively arranged opposite an associated embroidery-forming tool, for example a gripper, facing away from it.
  • an associated embroidery-forming tool for example a gripper
  • two conveyor walls can be provided in the execution as a two-needle machine and a common conveyor wall, which is formed on both sides for supporting one of the two needles of the two-needle machine.
  • a continuous adjustability of the distance of claim 2 leads to the possibility of a particularly fine and thus accurate specification of the distance of the conveyor wall to the needle movement range.
  • an adjustability of the distance via one or more stages is possible.
  • An adjustment device according to claim 3 can be realized with low production costs.
  • a weakening section according to claim 4 represents a solid-state joint for the defined deflection of the conveyor wall for setting this.
  • a reduction in the thickness of the wall thickness in the weakening section according to claim 5 has been found to be particularly suitable for producing an elastic displacement of the conveyor wall for setting of this.
  • the passage grooves are designed in particular as blind grooves, so that despite the passage grooves, the conveyor wall is integrally connected to the adjacent portions of the body.
  • An improved deflectability of the conveyor wall is particularly valid for an embodiment of the adjusting device according to claim 7.
  • An embodiment of the adjusting device according to claim 8 allows easy adjustment.
  • An embodiment of the carrier-fixed adjusting section according to claim 9 is particularly stable.
  • the carrier-fixed adjustment section is not a separate component from the feed dog.
  • the adjustment section can be an integral part of the basic body.
  • a mobility of the carrier-fixed adjustment section to the conveyor wall can then be achieved via a solid-state joint.
  • the solid-state joint can be designed as a weakening section in the transition region between the conveyor wall and a carrier base body be.
  • a multi-part embodiment of the transporter is possible in which, for example, the adjustment section represents a part detachable from the other transporter.
  • an embodiment of the adjustment section as a pivoting element, which is connected via a pivot joint with the main body of the conveyor, is possible.
  • a sewing machine 1 has a base plate 2 with a stand 3 extending upwardly therefrom and an angled arm 4. The latter ends in a head 5.
  • an arm shaft 6 is rotatably mounted, which drives a crank mechanism 7 with a thread lever 8 in the head 5.
  • the crank drive 7 is drivingly connected to a displaceably mounted in the head 5 needle bar 9 in conjunction.
  • the latter has a sewing needle 10 at its lower end.
  • the sewing needle 10 can be moved up and down by the crank mechanism 7.
  • the sewing needle 10 passes through a needle movement range, which will be explained below.
  • the sewing needle 10 leads in an eye from a spool 12 via a thread tensioning device and the thread lever 8 supplied needle thread 13th
  • a support or throat plate 14 is mounted, on which a workpiece 15 rests.
  • the support plate 14 has a feed slide opening or throat plate recess 16, which is designed for the passage of a feed dog or feed dog 17.
  • the feed dog 17 has a tap hole 18 for the passage of the needle 10.
  • the feed dog 17 is driven via a thrust and lifting gear driven below the base plate 2.
  • a gripper 19 is arranged, which has a gripper body 20 with a gripper tip 21.
  • the latter is firmly connected to a shaft which has a vertical axis of rotation 22 extending parallel to the needle bar 9.
  • This shaft is rotatably mounted in a bearing block 23 screwed to the base plate 2.
  • a drive shaft 24 is also mounted, which is connected to a arranged in the interior of the bearing block 23 gear transmission.
  • the drive shaft 24 is drivingly connected to the arm shaft 6 via a belt drive 25.
  • Fig. 2 shows the stitching area of the sewing machine 1 more in detail. Shown is the situation after the sewing needle 10 is withdrawn from the tap hole 18 out again towards the top dead center. The needle thread 13 forms below the stitch hole 18 a needle thread loop 26, which is knotted in the subsequent knotting with a lower thread 27. The latter is fed to the stitch formation area of a coil or thread winding housing housed in the gripper body 20. In Fig. 2 a direction of sewing is indicated by a directional arrow N.
  • Fig. 3 to 6 show the conveyor 17 in detail.
  • This has an upper transport section 28 with a both sides of the stitch hole 18 sawtooth running surface for frictional engagement with the fabric 15.
  • the transport section 28 leads in the cloth slide opening 16, ie in the throat plate recess, a transport movement, controlled by the push and screw gear out. Since the transporting portion 28 annularly surrounds the stitch hole 18, the transporting portion 28 is the needle moving portion 29, which in the Fig. 6 indicated by dashed lines, adjacent.
  • a main body 30 of the transport section 28 is fixedly connected to a feed carrier in the form of a support beam 31, which in turn is part of the thrust and lifting gear for the conveyor 17.
  • a conveyor wall 32 is disposed below the transport section 28 adjacent to the needle-moving area 29.
  • the conveyor wall 32 runs at mounted transporter 17 (see. Fig. 2 ) on that side of the needle 10, which faces away from a stitch forming tool, which cooperates with the needle 10 during sewing, that is from the gripper tip 21 of the gripper 19.
  • the needle 10 is thus in the bottom dead center between the conveyor wall 32 and an optional needle guard plate of the gripper 19th
  • the distance A (see. Fig. 6 ) of the conveyor wall 32 to the needle movement area 29 is adjustable via an adjusting device 33.
  • the latter is listed for continuous adjustment of the distance A.
  • the adjusting device 33 has a carrier-fixed adjusting portion 34. This is formed as mounted transporter 17 horizontally extending web which is integrally connected to the main body 30 of the conveyor 17. Furthermore, the adjusting device 33 has an adjusting body 35 in the form of a hexagon socket screw, which serves as a set screw.
  • the adjusting body 35 is screwed into a complementary internal thread 36 of the carrier-fixed adjustment section 34. With a free end 37, the adjusting body 35 is supported against the side facing away from the needle-movement region 29 side of the conveyor wall 32 from.
  • the adjusting body 35 is supported against the carrier-fixed adjustment section 34 on the one hand and against the conveyor wall 32 on the other hand with adjustable force.
  • the conveyor wall 32 has between a support portion 38, on which the adjusting body 35 is supported, and a transition portion 39 (see FIG. Fig. 6 ) towards the transport section 28 a weakening section 40 with reduced wall thickness.
  • the wall thickness of the conveyor wall 32 is approximately halved.
  • the conveyor wall 32 is of adjacent sections 41 via passageways 42 (see FIG. Fig. 4 ) separated.
  • the adjusting body 35 is supported on the conveyor wall 32 on the support section 38, ie at the free end of the conveyor wall 32, between the two passage grooves 42.
  • the needle 10 should be deflected away from the gripper 19, for example when piercing heavy materials such as leather, this undesired displacement movement of the needle 10 is prevented by abutment of the needle 10 on the adjusted transporter wall 32.
  • the conveyor wall 32 thus acts as a counter support for the needle 10 in the opposite direction to the supporting action of an optionally present needle guard plate of the gripper 19.
  • the set feed dog wall 32 ensures that the needle thread loop 26, which in the loop stroke position, in the Fig. 2 is shown, is formed, not undesirable from the gripper 19 can dodge away, since this evasive movement is prevented by the feed dog wall 32.
  • the conveyor wall 32 can be finely adjusted via the adjusting body 35 in a simple manner.

Landscapes

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

Claims (10)

  1. Transporteur (17) destiné au transport de produits de couture (15) pendant le fonctionnement d'une machine à coudre (1)
    - comprenant au moins une section de transport (28) qui est prévue pour une action simultanée par friction avec les produits de couture (15) et pour la réalisation d'un mouvement de transport dans un évidement de la plaque à aiguille (16) d'une plaque à aiguille (14), et qui est proche d'un domaine de déplacement de l'aiguille (29),
    - comprenant un corps de base (30) au dessus duquel la section de transport (28) est reliée solidement avec un support de transporteur (31),
    - comprenant une cloison de transporteur (32) qui est disposée en dessous de la section de transport (28) à proximité du domaine de déplacement de l'aiguille (29), la cloison de transporteur (32) étant conçue de sorte qu'elle s'étende sur le côté d'une aiguille (10), qui est à l'opposé d'un outil de formation du point (19), outil qui agit conjointement avec l'aiguille (10) pendant la couture lorsque le transporteur (17) est monté
    caractérisé par un dispositif de réglage (33) par lequel une distance (A) entre la cloison du transporteur (32) et le domaine de déplacement de l'aiguille (29) peut être réglée de telle sorte que déjà des déviations minimes de l'aiguille (10) en direction de la cloison du transporteur (32) ont pour conséquence que la cloison du transporteur (32) soutienne l'aiguille (10).
  2. Transporteur selon la revendication 1 caractérisé en ce que le dispositif de réglage (33) est conçu pour le réglage continu de la distance (A).
  3. Transporteur selon les revendications 1 ou 2 caractérisé en ce que le dispositif de réglage (33) présente :
    - une section de réglage (34) solidaire du support,
    - un corps de réglage (35) qui s'appuie avec une force réglable d'une part sur la section de réglage (34) solidaire du support et d'autre part contre la cloison du transporteur (32).
  4. Transporteur selon la revendication 3 caractérisé en ce que la cloison du transporteur (32) présente une section d'affaiblissement (40) avec une épaisseur de cloison diminuée entre une section d'appui, sur laquelle s'appuie le corps de réglage (35) et une section de transition (39) jusqu'au corps de base (30).
  5. Transporteur selon la revendication 4 caractérisé en ce que dans la section d'affaiblissement (40) l'épaisseur de paroi de la cloison du transporteur (32) est divisée par deux.
  6. Transporteur selon l'une des revendications de 1 à 5 caractérisé en ce que la cloison du transporteur (32) est séparée des sections voisines (41) du corps de base (30) par des rainures annulaires (42).
  7. Transporteur selon la revendication 6 caractérisé en ce que le corps de réglage (35) s'appuie sur la cloison du transporteur (32) au niveau d'une extrémité libre (38) de celui-ci entre les deux rainures annulaires (42).
  8. Transporteur selon l'une des revendications de 3 à 7 caractérisé en ce que le corps de réglage (35) est conçu sous la forme d'une vis de réglage qui est vissée dans un filetage (36) de la section de réglage (34) solidaire du support et qui s'appuie sur une extrémité libre (37) contre la cloison du transporteur (32).
  9. Transporteur selon l'une des revendications de 3 à 8 caractérisé en ce que la section de réglage (34) solidaire du support est reliée avec le corps de base (30) en une pièce unique.
  10. Machine à coudre
    - comprenant une plaque à aiguille (14) avec un évidement de plaque à aiguille (16),
    - comprenant une tige d'aiguille (9) entraînée vers le haut et vers le bas au dessus de la plaque à aiguille (16), tige sur laquelle une aiguille à coudre (10) peut être rapportée,
    - comprenant un transporteur (17) selon l'une des revendications de 1 à 9 disposé dans l'évidement de la plaque à aiguille (16) pour l'exécution d'un mouvement de transport.
EP09006768A 2008-06-24 2009-05-20 Transporteur destiné au transport de produits de couture pendant le fonctionnement d'une machine à coudre Not-in-force EP2138619B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008030000A DE102008030000A1 (de) 2008-06-24 2008-06-24 Transporteur zum Transport von Nähgut während des Betriebs einer Nähmaschine

Publications (2)

Publication Number Publication Date
EP2138619A1 EP2138619A1 (fr) 2009-12-30
EP2138619B1 true EP2138619B1 (fr) 2012-03-28

Family

ID=41090285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006768A Not-in-force EP2138619B1 (fr) 2008-06-24 2009-05-20 Transporteur destiné au transport de produits de couture pendant le fonctionnement d'une machine à coudre

Country Status (6)

Country Link
EP (1) EP2138619B1 (fr)
JP (1) JP2010005393A (fr)
KR (1) KR101565618B1 (fr)
CN (1) CN101613913B (fr)
AT (1) ATE551457T1 (fr)
DE (1) DE102008030000A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277696B (zh) * 2010-06-09 2015-03-11 Vsm集团股份公司 送料器移动补偿
CN102995303B (zh) * 2011-09-09 2015-04-01 曾贤长 送布机构的导引结构
CN105088546B (zh) * 2015-09-30 2018-11-30 杰克缝纫机股份有限公司 一种缝纫机上送料牙与针板之间的调节结构
TWI660085B (zh) * 2016-11-30 2019-05-21 龍帝實業有限公司 縫紉機之上網線起縫不漏線的裝置及方法
JP2023092035A (ja) * 2021-12-21 2023-07-03 Juki株式会社 ミシン
JP2024078286A (ja) * 2022-11-29 2024-06-10 Juki株式会社 ミシン

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206039A (en) * 1922-12-08 1923-11-01 Union Special Machine Co Improvements in feeding mechanism for sewing machines
CH258271A (de) * 1947-05-16 1948-11-30 Gegauf Eugen Stoffvorschubeinrichtung an Überwendlingnähmaschinen.
CH398182A (de) 1962-11-14 1965-08-31 Saurer Ag Adolph Gasturbinenanlage
US3320912A (en) * 1965-02-18 1967-05-23 Singer Co Convertible work-feeding devices for sewing machines
US4159004A (en) * 1978-04-28 1979-06-26 The Singer Company Work feeding mechanism for sewing machines
DE4316410C2 (de) * 1992-06-19 1994-10-06 Union Special Gmbh Nähmaschine mit einer Nähgutvorschubeinrichtung
JP4261698B2 (ja) * 1999-01-21 2009-04-30 Ｊｕｋｉ株式会社 ミシンの布送り機構
US6646383B2 (en) 2001-03-15 2003-11-11 Siemens Medical Solutions Usa, Inc. Monolithic structure with asymmetric coupling
JP2004174120A (ja) 2002-11-29 2004-06-24 Juki Corp ミシンの送り装置

Also Published As

Publication number Publication date
CN101613913B (zh) 2013-01-30
DE102008030000A1 (de) 2009-12-31
KR101565618B1 (ko) 2015-11-03
JP2010005393A (ja) 2010-01-14
KR20100002138A (ko) 2010-01-06
CN101613913A (zh) 2009-12-30
ATE551457T1 (de) 2012-04-15
EP2138619A1 (fr) 2009-12-30

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