EP1006229A1 - Mehrnadel-Steppmaschine für verknoteten Stich und/oder Doppelkettenstich Stick- oder Steppverfahren - Google Patents

Mehrnadel-Steppmaschine für verknoteten Stich und/oder Doppelkettenstich Stick- oder Steppverfahren Download PDF

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Publication number
EP1006229A1
EP1006229A1 EP99122856A EP99122856A EP1006229A1 EP 1006229 A1 EP1006229 A1 EP 1006229A1 EP 99122856 A EP99122856 A EP 99122856A EP 99122856 A EP99122856 A EP 99122856A EP 1006229 A1 EP1006229 A1 EP 1006229A1
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EP
European Patent Office
Prior art keywords
needle
stitches
double
stitching
needle 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.)
Withdrawn
Application number
EP99122856A
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English (en)
French (fr)
Inventor
Giannino Landoni
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Individual
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Individual
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Publication date
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Publication of EP1006229A1 publication Critical patent/EP1006229A1/de
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B11/00—Machines for sewing quilts or mattresses

Definitions

  • This invention concerns a multi-needle machine for stitching/quilting both with a knotted stitch (n° 301) and with a double-chain stitch (n° 401) as set forth in the main claim.
  • the machine is applied in general in the field of stitching/quilting machines, for clothing, quilts and mattresses, and refers more particularly, though not exclusively, to multi-needle quilting machines suitable to achieve multi-layer quilted textile products, consisting of at least an upper fabric and at least an inner layer of padding.
  • the multi-needle stitching/quilting machine according to the invention allows to use at will both the knotted stitch technique and the double-chain stitch technique with simple and quick operations to prepare and adapt the machines.
  • the machine according to the invention makes it possible to achieve any kind of pattern, even very sophisticated, similar to embroidery and made with stitches made even very close together.
  • the multi-needle machine allows to make both small and large quilting patterns, and every type of stitch, both single, double, intercalated, etc.
  • Sewing machines either single or multi-needle, are classified according to the type of stitches they are able to make.
  • the eyelet or heddle eye formed by a first thread carried by the upper stitching elements, or needles is knotted by a second thread carried by the lower stitching elements, consisting of rotary crochets or shuttles containing spools of thread.
  • the eyelet or heddle eye formed by a first thread carried by the upper stitching elements, or needles is woven in a desired manner with a second thread carried by the lower stitching elements, consisting of hooks or loopers, and arriving from a relative reel arranged on a creel which forms part of the machine.
  • Multi-needle quilting machines generally comprise:
  • the upper stitching elements generally consist of parallel longitudinal bars endowed with alternating ascending/descending motion and bearing a plurality of needles which are spaced lengthwise at fixed distances.
  • Each of the needles carries a respective stitching thread, denominated needle thread, and cooperates with a mating gripping mean provided on the lower stitching elements.
  • the gripping mean for the knotted stitch, consists of a shuttle which feeds the thread of a spool contained inside; for the double-chain stitch, the gripping mean consists of a hook (looper) which feeds the thread from a relative reel of thread arranged on a creel which forms part of the machine.
  • the gripping means either shuttle or hook, grasp the eyelet or heddle eye of the needle thread and knot it or weave it in the desired manner, with the thread of the spool (shuttle) in one case, or with the thread of the reel (hook) in the other case, in order to achieve the specific type of stitch.
  • the shuttles, or hooks are made to move with a generally alternate movement on sliding guides with substantially straight movements coordinated with the ascending/descending movements of the needle-carrier bars.
  • a fundamental difference between the technology of the knotted stitch (n° 301) and that of the double-chain stitch (n° 401) is that in the latter it is necessary (especially to be able to perform stitching in all directions) to use a third element, to discard or deflect the threads, which is not included in machines for knotted stitching.
  • This invention solves these problems economically and in a technically innovative manner, offering the market a single machine (in this case a multi-needle quilting machine) suitable to sew/quilt indifferently both with the knotted stitch (n° 301) technique and also with the double-chain stitch (n° 401) technique, and therefore a single machine which can produce quilted products of every type and kind.
  • a single machine in this case a multi-needle quilting machine
  • the purpose of the invention is to provide a single multi-needle machine which will allow to achieve, alternatively and by means of simple and rapid preparatory operations, stitched or quilted textile products both with the knotted stitch technique and also with the double-chain stitch technique.
  • the multi-needle machine according to the invention allows to achieve, with one technique or the other, quilted patterns which may even be very sophisticated and made with the lines of stitches placed even very close together.
  • the multi-needle machine according to the invention comprises upper stitching elements consisting, in a manner already known in the state of the art, of one, two or more needle-bearing bars which can move with an alternative ascending/descending movement, synchronised with the movements of the lower stitching elements.
  • the lower stitching elements consist of supporting bars suitable to receive the shuttles, cooperating with shuttle-guiding shoulders, to do the knotted type stitches (n° 301), or the hooks to do the double-chain stitches (n° 401).
  • each bar is suitable to contain one, two or more shuttles, or one, two or more hooks, located one behind the other at a desired distance, wherein each of the shuttles, or each of the hooks, cooperates with a respective needle mounted on corresponding needle-bearing bars arranged at the same distance.
  • each needle and relative hook cooperate with a third element, a thread-discarding or thread-deflecting element which, during a particular step of the stitch formation, grips the hook thread and the two ends of the needle thread with a plane rotatory movement, and displaces them from one side of the hook to the other so as to form a triangle into which the needle is threaded during the subsequent descending movement.
  • a thread-discarding or thread-deflecting element which, during a particular step of the stitch formation, grips the hook thread and the two ends of the needle thread with a plane rotatory movement, and displaces them from one side of the hook to the other so as to form a triangle into which the needle is threaded during the subsequent descending movement.
  • This system makes quilting possible in every stitching direction.
  • Each of the plates has individual thread-deflecting elements, each of which cooperates with a respective needle and a respective hook when double-chain stitches (n° 401) are done.
  • shuttle-bearing bars are used whose shuttles cooperate with the upper stitching elements.
  • hook-bearing bars are used which cooperate with the thread-deflecting elements and the upper stitching elements.
  • the orbital movement of the thread-deflecting plates is activated and they perform their plane rotational movement so as to participate in the stitching of the double-chain stitch (n° 401).
  • the multi-needle machine quilting according to the invention comprises means to control and command the upper and lower stitching elements.
  • the multi-needle machine When used as a quilting machine, the multi-needle machine also has means to feed the material to be quilted which are electronically controlled and managed by a command software which allows to achieve any quilting pattern whatsoever.
  • Fig. 1 shows a multi-needle machine 10 according to the invention used as a quilting machine.
  • the multi-needle machine 10 comprises, as its essential parts, an inlet assembly 10a, a stitching assembly 10b and an outlet assembly 10c.
  • the inlet assembly 10a is used to feed the textile material 11 on which the quilting is to be performed; the textile material 11, in this case, consists of an upper fabric 11a, a lower fabric 11c, and an intermediate layer of padding 11b so as to achieve a so-called "quilted sandwich".
  • the inlet assembly 10a is managed and commanded by a command software, and is therefore able to move the textile materials 11 in any direction, so as to achieve quilted products 19 with very complex quilting patterns.
  • the stitching assembly 10b comprises upper stitching elements 12 consisting of a desired number, in this case two 13a and 13b, of needle-bearing bars 13, parallel to each other, cooperating with mating lower stitching elements 15.
  • the needle-bearing bars 13 are associated with respective movement arms 26 equipped with alternate ascending/descending movement, and comprise a plurality of stitching needles 24 each of which cooperates with a respective thread 14, or needle thread, fed from reels 14a (Fig. 3).
  • the cooperation between the upper stitching elements 12 and the lower stitching elements 15 causes the simultaneous formation, on the textile material 11, of a plurality of stitches 18/18a which achieve the desired quilting patterns to obtain the quilted textile product 19 with both knotted stitch and double-chain stitch.
  • the quilted textile product 19 is then collected in a desired manner by the outlet assembly 10c.
  • the assemblies 10a, 10b and 10c are controlled and driven by an electronic control assembly 25 equipped with interface means for the operator, such as a key board, display, possible peripherals such as a printer etc.
  • the multi-needle machine 10 according to the invention is suitable to use, alternatively, lower stitching elements 15 either of the shuttle type 20, so as to achieve knotted (n° 301) stitches 18, or of the hook type 21 (looper), so as to achieve double-chain (n° 401) stitches 18a.
  • the lower stitching elements 15 may therefore consist either of a plurality of shuttles 20 mounted in alignment on relative shuttle-bearing bars 16 (Fig. 6), or of a plurality of hooks 21 mounted in alignment on relative hook-bearing bars 17 (Fig. 7).
  • the shuttle-bearing bars 16 and the hook-bearing bars 17 are suitable to be alternatively attached, in this case by means of rapid attachment elements 42, to sliders 22 arranged in a position mating to the needle-bearing bars 13 positioned above (Figs. 11 and 12), of a unified type and mounted sliding on guides 43.
  • the rapid attachment means 42 can be of the mechanical type, the magnetic type or of any other known type.
  • the sliders 22 are suitable to be moved, with an alternating rectilinear movement, in step together and synchronised with the alternating ascending/descending movements of the needle-bearing bars 13, by means of command levers 23 mounted on a main shaft 27 (Figs. 4 and 5).
  • the sliders 22 are arranged in the intermediate spaces between a plurality of guiding shoulders 28 defining the lateral surfaces on which the shuttles 20 slide when the multi-needle machine 10 is in the configuration for knotted stitch stitching (Fig. 9).
  • the guiding shoulders 28 are attached on suitable supports 29 and are associated at the upper part with a needle-plate 30 on whose upper surface the textile material 11 rests during the quilting operation.
  • the needles 24 move with an ascending/descending movement, penetrate the textile material 11 and emerge therefrom.
  • the needles 24 pass through mating holes 31, made on the needle-plate 30, and slide between corresponding vertical hollows 32 made on the guiding shoulders 28, cooperating with the shuttles 20 so as to do knotted stitches 18, or with the hooks 21 to do double-chain stitches 18a.
  • the multi-needle machine 10 also comprises a plurality of thread-deflecting plates 39, each of which has a plurality of deflector elements 37 cooperating with needles 24 and hooks 21 to do the double-chain stitches 18a.
  • the thread-deflecting plates 39 are arranged below the needle-plates 30 in a position above the hooks 21 and guiding shoulders 28, which in this case act as a sliding plane for the thread-deflecting plates 39 (Figs. 11 and 12).
  • the thread-deflecting plates 39 are connected together and are suitable to rotate on a substantially horizontal plane (see detail in Fig. 10a), so as to drive, in the case shown here as an example, one or more command cams 40 associated with a relative autonomous drive assembly 41 shown in Figs. 5 and 10.
  • the thread-deflecting plates 39 are driven by suitable means to impart two coordinated movements so as to oblige the plates 39 to perform a plane rotary movement.
  • the hook-bearing bars 17 are attached onto the sliders 22 by means of the rapid attachment elements 42; apart from the hooks 21, as in the state of the art, a plurality of needle-saver elements 34 are mounted on the hook-bearing bars 17.
  • Respective lower threads 35 are associated on the hooks 21, and are fed from relative reels 36 arranged on a lower creel which is part of the multi-needle machine 10 (Fig. 5).
  • the command assembly 41 which drives the cam 40 to make the thread-deflecting plate 39 rotate can be activated by means of the electromagnetic switch 44 when double-chain stitches 18a are done.
  • the command assembly 41 is de-activated by means of the same electromagnetic switch 44 when knotted stitches 18 are done and held in position by the electromagnetic brake 45.
  • the needle threads 14 form eyelets or heddle eyes.
  • each needle thread 14 and the respective lower thread 35 form a triangle wherein the needle 24 enters in its subsequent descending step so as to close the previous stitch.
  • the lower threads 35 are alternately put under tension and then released, by means of a tensioner element 38 oscillating alternately in co-ordination and synchronisation with hooks 21, needles 24 and thread-deflecting plates 39, in order to optimise the binding of the threads.
  • the lower stitching elements 15 are replaced by removing the hook-bearing bars 17 from the sliders 22 and replacing them with the shuttle-bearing bars 16 on which the shuttles 20 are arranged containing the spools 33a of lower thread 33.
  • the assembly 41 to drive the command cam 40 which makes the thread-deflecting plate 39 rotate is then de-activated, by means of the electromagnetic switch 44.
  • the knotted stitch is formed by the shuttles 20 which, as they advance, enter into the eyelets formed by the needle threads 14, opening them and knotting them with the lower threads 33 of the respective spools 33a.
  • the thread-deflecting plate 39 are kept inactive, by means of the electromagnetic brake 45, in a position where they do not interfere with the needles 24 and shuttles 20.
  • the invention thus allows to use the same multi-needle machine both to do stitches 18 with a knotted stitch (n° 301) and also stitches 18a with a double-chain stitch (n° 401) with a simple and rapid variation of the command travels of the needles-shuttles and the needles-hooks.
  • All the mechanical/kinematic devices, coordinated and managed by an electronic command assembly contribute, according to known techniques, to perform, in this case, knotted stitches (n° 301) or double-chain stitches (n° 401).
  • the electronic command assembly 25 of the multi-needle machine 10 is suitable to co-ordinate and synchronise the drive of all the operational elements which intervene in doing the stitches 18, 18a, possibly modifying the activation cycles according to the type of stitch to be done.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP99122856A 1998-11-30 1999-11-17 Mehrnadel-Steppmaschine für verknoteten Stich und/oder Doppelkettenstich Stick- oder Steppverfahren Withdrawn EP1006229A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000205 IT1302805B1 (it) 1998-11-30 1998-11-30 Macchina multiaghi per cucitura/trapuntatura a punto annodatoe/o a punto doppia catenella
ITUD980205 1998-11-30

Publications (1)

Publication Number Publication Date
EP1006229A1 true EP1006229A1 (de) 2000-06-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122856A Withdrawn EP1006229A1 (de) 1998-11-30 1999-11-17 Mehrnadel-Steppmaschine für verknoteten Stich und/oder Doppelkettenstich Stick- oder Steppverfahren

Country Status (2)

Country Link
EP (1) EP1006229A1 (de)
IT (1) IT1302805B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6895878B2 (en) * 2001-02-14 2005-05-24 Nahmaschinenfabrik Emil Stutznacker Gmbh & Co. Kg Chain stitch multi-needle quilting machine and method to create a pattern in a quilting material
WO2006035270A1 (en) * 2004-09-30 2006-04-06 Meca Spa Automatic multi-function multi-needle sewing machine, and relative sewing method
US7722444B2 (en) 2005-05-13 2010-05-25 Black & Decker Inc. Angle grinder
WO2019123140A1 (en) * 2017-12-21 2019-06-27 Tor.Mec Ambrosi S.R.L. Sewing machine provided with a flexible modular system for the variation of the needle gauges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602168A (en) * 1969-05-23 1971-08-31 Brother Ind Ltd Chain stitch forming device for a lock stitch sewing machine
US4006697A (en) * 1976-01-12 1977-02-08 Kirsch Company High speed quilting machine
GB2065729A (en) * 1979-12-20 1981-07-01 West W B H Improvements in or relating to stitching machines
US5154130A (en) * 1991-09-30 1992-10-13 Leggett & Platt, Incorporated Multi-needle double lock chain stitch tack, jump and thread trimming quilting method and apparatus
EP0867552A1 (de) * 1997-03-28 1998-09-30 Giannino Landoni Mehrnadelsteppdeckennähmaschine für verknoteten Stich mit unteren Nähelementen mit umlaufenden Greifern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602168A (en) * 1969-05-23 1971-08-31 Brother Ind Ltd Chain stitch forming device for a lock stitch sewing machine
US4006697A (en) * 1976-01-12 1977-02-08 Kirsch Company High speed quilting machine
GB2065729A (en) * 1979-12-20 1981-07-01 West W B H Improvements in or relating to stitching machines
US5154130A (en) * 1991-09-30 1992-10-13 Leggett & Platt, Incorporated Multi-needle double lock chain stitch tack, jump and thread trimming quilting method and apparatus
EP0867552A1 (de) * 1997-03-28 1998-09-30 Giannino Landoni Mehrnadelsteppdeckennähmaschine für verknoteten Stich mit unteren Nähelementen mit umlaufenden Greifern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6895878B2 (en) * 2001-02-14 2005-05-24 Nahmaschinenfabrik Emil Stutznacker Gmbh & Co. Kg Chain stitch multi-needle quilting machine and method to create a pattern in a quilting material
WO2006035270A1 (en) * 2004-09-30 2006-04-06 Meca Spa Automatic multi-function multi-needle sewing machine, and relative sewing method
US7722444B2 (en) 2005-05-13 2010-05-25 Black & Decker Inc. Angle grinder
US8087976B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Trigger assembly for angle grinder
WO2019123140A1 (en) * 2017-12-21 2019-06-27 Tor.Mec Ambrosi S.R.L. Sewing machine provided with a flexible modular system for the variation of the needle gauges

Also Published As

Publication number Publication date
ITUD980205A1 (it) 2000-05-30
IT1302805B1 (it) 2000-09-29

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