EP2540893B1 - Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette et machine à coudre à point de chaînette - Google Patents

Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette et machine à coudre à point de chaînette Download PDF

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Publication number
EP2540893B1
EP2540893B1 EP11006743.6A EP11006743A EP2540893B1 EP 2540893 B1 EP2540893 B1 EP 2540893B1 EP 11006743 A EP11006743 A EP 11006743A EP 2540893 B1 EP2540893 B1 EP 2540893B1
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EP
European Patent Office
Prior art keywords
gripper
thread
holding element
sewing
cutting tool
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.)
Active
Application number
EP11006743.6A
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German (de)
English (en)
Other versions
EP2540893A1 (fr
Inventor
Hartmut Dipl.- Ing. Klapp (FH) VDI
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.)
Naehmaschinenfabrik Emil Stutznaecker GmbH and Co KG
Original Assignee
Naehmaschinenfabrik Emil Stutznaecker GmbH and Co KG
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 Naehmaschinenfabrik Emil Stutznaecker GmbH and Co KG filed Critical Naehmaschinenfabrik Emil Stutznaecker GmbH and Co KG
Priority to EP11006743.6A priority Critical patent/EP2540893B1/fr
Priority to US13/524,079 priority patent/US8739714B2/en
Priority to CN201210228097.2A priority patent/CN102851881B/zh
Publication of EP2540893A1 publication Critical patent/EP2540893A1/fr
Application granted granted Critical
Publication of EP2540893B1 publication Critical patent/EP2540893B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
    • D05B1/10—Double chain-stitch seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms

Definitions

  • the invention relates to a method for operating a chain stitch sewing machine, in particular a Doppelkettenstichnähmaschine, preferably a Dahlnadeldoppelkettenstichnähmaschine having a Nähorganpres from a needle piercing a fabric and arranged below a piece of cloth, along a movement path movable gripper, with the needle, a needle thread through the resting on the fabric support fabric is guided, which is chained with a bobbin thread.
  • the invention further relates to a chain stitch sewing machine, in particular a Doppelkettenstichnähmaschine, preferably a Dahlnadeldoppelkettelstichnähmaschine, with a Nähorganpres from a, piercing a needle needle and arranged below a piece of cloth, movable along a trajectory gripper, the needle resting an upper thread through the on the Nähgutauflagen Sewing material leads and the upper thread is chained with a bobbin thread.
  • the gripper can basically be moved back and forth between two end positions during the sewing process along an arcuate path of movement, so that the gripper performs an oscillating movement. If necessary, the gripper can then be controlled via a crank mechanism, so that the gripper performs a supplementary movement along the arc of a circle-shaped movement path compared to the usual, oscillating during the sewing process movement. As a result, the upper thread passes into the region of a gripper knee, in which a cutting blade is arranged, which serves to cut the upper thread.
  • the above-described prior art basically shows ways in which the upper thread can be cut at the desired time.
  • This point in time may, for example, be predetermined by an electronic control of the multi-needle sewing machine and may be necessary in particular when changing the sewing area in the large-sized sewing material.
  • Such cutting of the upper thread prevents post-processing of the material at the end of the sewing process, in which manually or mechanically the upper thread, which does not run through the sewing material between adjacent Nähmustern. It has in this regard also proved to be a disadvantage that a subsequent trimming of the upper thread leads to a great effort.
  • the invention has the object of developing a generic method for operating a chain stitch sewing machine such that reduced to form a clean Nähgutmustersentes on the underside of the fabric, the required amount of thread of the lower thread and the sewing start is simplified in the range of a subsequent Nähgutmusters. It is another object of the invention, a generic chain stitch sewing machine such to form that a method according to the invention can be advantageously carried out in an economical manner while avoiding the disadvantages presented above.
  • the lower thread is supplied to a holding element and held in this, which is moved with respect to its movement direction and / or movement speed for Nähgutauflage corresponding to a movement path of a pivoting movement of the gripper, in particular along a circular arc segment-shaped trajectory.
  • the inventive method thus ensures that the lower thread is also fixed during a sewing operation in which certain needles do not participate in the sewing process, while the entirety of the gripper is still moved in an oscillating manner. Furthermore, the sewing of a new thread chain is simplified in that the lower thread is fixed and can be easily grasped during the next stitching process and connected to the upper thread.
  • the latter advantage is achieved in that the lower thread is stretched between gripper and retaining element. Due to the tension in the lower thread this is basically in a certain area, so that the sewing process, namely the insertion of the needle can be used as a defined location to hold the tensioned lower thread for an advantageous sewing.
  • the lower thread is arranged substantially antiparallel to the longitudinal axis of the gripper extending between the tip and the holding element.
  • the gripper is usually L-shaped and therefore has two legs. With the first leg of the gripper is inserted into a gripper holder which is rotatably connected to a gripper shaft.
  • This embodiment has the advantage that the gripper can be exchanged in a simple manner, for example in the case of defects.
  • the second leg of the gripper with the hook tip through which usually runs the lower thread extends substantially perpendicular to the first leg. This leg therefore has a longitudinal axis, which is here designated by the longitudinal axis of the gripper.
  • Antiparallel deviating from this longitudinal axis of the lower thread extends in an advantageous manner, so that the Lower thread and this leg of the gripper are aligned V-shaped extending.
  • the needle may pierce with the upper thread so as to concatenate the lower thread with the upper thread.
  • the lower thread is made to the holding element before or during a running with a cutting tool cutting process, in particular the lower thread.
  • a cutting tool cutting process in particular the lower thread.
  • both the upper thread and the lower thread can be cut.
  • two different cutting devices are usually provided.
  • the lower thread is transferred before performing a cutting operation in the holding element and held in this.
  • the cutting process can then be carried out outside the length of the lower thread between the hook tip and the holding element, so that this area of the lower thread is arranged stretched on the gripper even after execution of the cutting operation.
  • the cutting operation can also be performed simultaneously with the transfer of the lower thread in the holding element.
  • the cutting tool is moved during the cutting process into the area of the lower thread, in particular to the plant at least one cutting surface on the lower thread and the cutting process by a movement of the material relative to the Nähgutauflage and / or by a complementary Movement of the cutting tool is performed.
  • the lower thread is already arranged and fixed in the holding element.
  • the cutting tool is moved together with the gripper and the holding element.
  • This can be done, for example, that both the gripper, and the cutting tool and the holding element are attached to the gripper holder, so that these components perform a total with respect to their direction of movement and in terms of their movement speed identical movements.
  • the holding element can also be attached directly to the gripper and thus only indirectly on the holding element. Of course, the same also applies to the cutting tool.
  • Cutting tool, the gripper and the holding member are moved during the sewing in a circular arc-shaped trajectory to a range in which the cutting tool does not come into contact with the lower thread and the cutting tool, gripper and holding member for performing the cutting along the trajectory with the same direction of movement over to move the area away. It is provided that the lower thread is arranged in the holding element before the cutting tool comes into contact with the lower thread.
  • a holding element for the required support of the lower thread which is movable with respect to its movement direction and / or movement speed to Nähgutauflage corresponding to a movement path of a pivoting movement of the gripper, in particular along a circular arc segment-shaped trajectory.
  • a retaining element which, if necessary, receives the lower thread and fixes it over a certain period of time.
  • This holding element is movable with respect to its movement direction and / or movement speed to Nähgutauflage corresponding to a movement path of a pivoting movement of the gripper.
  • this trajectory is formed arcuate section-shaped and results from the oscillating movement of the gripper shaft with the grippers arranged thereon.
  • the holding element is arranged on the gripper, in particular in the region of a connectable to a gripper shaft portion of the gripper.
  • the holding element can be screwed for example with a leg of the gripper.
  • the holding element may also be arranged in the region of the gripper holder. This results in each case a concurrent movement of the holding element with the gripper.
  • the holding element is arranged in the longitudinal axis direction of the gripper between the gripper and a cutting tool, wherein the cutting tool is movable together with the gripper.
  • the cutting tool can cut the lower thread, for example, by a supplementary movement of the gripper shaft with the grippers in the direction of the lower thread.
  • the cutting operation is carried out by a movement of the material on the Nähgutauflage, in which the lower thread is pulled into the cutting tool.
  • the arrangement of the holding element between the gripper and the cutting tool has the advantage that it is ensured that the holding element, in particular in the former method of cutting previously in contact with the lower thread, so that it is jammed in the holding element.
  • the holding element is arranged in such a way to the gripper, that the held thread extends substantially antiparallel to a leg of the approximately L-shaped gripper.
  • the lower thread extends in its fixed arrangement between the hook tip and the holding element, for example, in the transition region of the two legs of the gripper to each other, wherein the holding element is laterally offset from the leg with the tip, so that the lower thread substantially anti-parallel to the longitudinal axis of the leg runs with the tip.
  • the holding element consists of a connectable to a gripper holder, the gripper shaft and / or the gripper body and a spring-mounted element attached thereto, which is connected at a first end to the base body and the second end relative is movable to the base body and rests against the base body.
  • This resilient element is preferably formed from a spring steel.
  • the resilient element may have a slightly cranked configuration, so that the free end of the spring-elastic element lifts off from a surface of the base body, so that the insertion of the lower thread between the resilient element and the main body of the holding element is simplified. With the remaining area, the spring-elastic element is under spring preload on the main body of the holding element.
  • This spring base voltage is dimensioned such that a sufficiently large Holding force is given, at the same time the lower thread but at the beginning of a new pattern of material can be removed without damage from the holding element. This is done for example by needle and needle thread.
  • the holding element has a guide surface over which the lower thread is guided in dependence on the angular position of the gripper relative to the Nähgutauflage in a held position.
  • the cutting tool, holding element and gripper are arranged relative to one another such that the lower thread is arranged in the holding element before the cutting tool is reached.
  • the guide surface shown above is preferably located on the main body of the holding element and passes the lower thread in the region of the resilient element, until the lower thread between the main body and the resilient element is braced.
  • Fig. 1 shows a Nähgutauflage 1, on which a fabric 2, for example, a multi-layer fabric is placed, which is movable relative to the fabric support 1.
  • a needle 3 is arranged, which is reciprocally movable between two positions back and forth, wherein a position in Fig. 1 and a position in the Fig. 2 to 6 is shown.
  • the needle 3 is inserted into the fabric 2 and passes through the Nähgutauflage 1, which has an opening not shown for this purpose.
  • the needle 3 has in its needle tip 4 a needle eye 5, through which an upper thread 6 is guided, for better visibility in all Fig. 1 to 6 is dashed.
  • Fig. 1 further shows a arranged below the fabric support 1 gripper shaft 8, on a gripper holder 9 is releasably attached.
  • the gripper holder 9 has a bore 10, in which a substantially L-shaped gripper 11 is inserted with a spigot 12 in the region of a first leg 13.
  • the gripper 11 is locked by a locking screw in the bore 10, which is screwed into a corresponding bore 14 having a thread.
  • the gripper holder 9 itself is also substantially L-shaped and screwed to the gripper shaft 8 in the region of a rectangular cross-section clamping element.
  • the gripper 11 has a second leg 16 with a free end, which is referred to as the hook tip 17. In the region of this hook tip 17, a bore 18 is arranged, through which the lower thread 7 is guided.
  • a cutting tool 19 is provided, which is screwed to the gripper holder 9.
  • the cutting tool 19 is connected downstream of the gripper, wherein the term "downstream" refers to a direction of movement of the gripper during the usual sewing operation in the direction of the hook tip 17.
  • the cutting tool 19 consists of two blades 20, which is screwed together with the inclusion of an acute angle to each other by means of a screw 21 with a cutting tool holder 22.
  • the cutting tool holder 22 is in turn screwed by means of a screw 23 with the gripper holder 9.
  • the two blades 20 of the cutting tool 19 can be changed after loosening the screw 21 in its angular position relative to each other, so that there is a more or less large angle between the facing blades 20, whereby the blades 20 and thus the cutting tool 19 to parameters of Under thread, such as thread thickness and thread material can be adjusted.
  • Fig. 1 shows a common starting position when sewing a chain stitch.
  • the gripper 11 engages with its gripper tip 17 in the needle thread loop of the upper thread 6 and connects the guided from the gripper lower thread 7 with the upper thread 6.
  • the needle 3 in the in Fig. 2 shown top position whereby the needle thread loop slides over the leg 16 of the gripper 11.
  • the gripper 11 is then in a position substantially according to Fig. 1 swung back and the needle 3 stabs again with the upper thread 6 through the fabric 2, before the gripper 11 again from the in Fig. 1 position shown in the in Fig. 2 shown position is pivoted.
  • Fig. 3 a position of the gripper 11 is shown, in which the gripper 11 via the position according to Fig. 2 is swung out to cut the upper thread 6 by means provided in the transition of the legs 13 and 16 cutting tool 24.
  • the lower thread 7 is hereby tensioned.
  • the gripper 11 is further pivoted in the clockwise direction, the lower thread 7 reaches a position between the two blades 20 of the cutting tool 19. It is now sufficient for a slight further pivoting of the gripper 11 according to Fig. 5 to cut the lower thread by means of the cutting tool 19. Additionally and / or alternatively it can be provided that in a position of the gripper 11 according to Fig. 4 the fabric 2 is moved in the direction of an arrow 25, so that also thereby the lower thread 7 is pulled into the V-shaped recess between the blades 20 and cut on the blades 20.
  • the bobbin thread is cut with a length sufficient to avoid opening the stitch. Subsequently, the fabric can then be moved to a new position relative to the needle 3, for example, to begin a new pattern of material.
  • Fig. 6 shows in addition the basic possibility by moving the material 2 relative to the fabric support 1 to adjust the remaining thread length of the lower thread 7, but also the upper thread 6, so that the lower thread 7 is cut with a sufficient, remaining on the fabric 2 length.
  • a presser foot 26 is shown in Fig. 6 in addition.
  • Adjusting the remaining thread length of the lower thread 7 according to Fig. 6 is not limited to the illustrated position of the gripper 11 relative to the fabric 2. A corresponding displacement of the material 2 relative to the Nähgutauflage is of course possible in the positions of the gripper 11, as in the Fig. 3 until 5 are shown.
  • the Fig. 7 to 10 show the embodiment of a gripper 11 with a gripper holder 9 and a clamping element 15, are clamped to the gripper holder 9 and gripper 11 on a gripper shaft 8.
  • the show Fig. 7 to 10 the cutting tool 19 with the blade 20, which is connected via the screw 21 with the gripper holder 9.
  • a holding element 27 can be recognized, which is arranged between the leg 13 of the gripper 11 and the cutting tool holder 22, wherein the holding element 27 is screwed by means of a screw 28 with the leg 13 of the gripper 11.
  • the holding element 27 consists of a base body 29 and a resilient element 30, for example a spring steel.
  • the resilient element 30 is fixed by means of a screw 31 on the base body 29 of the retaining element 27 such that a free end 32 of the resilient element 30 relative to the base body 29 against the spring force of the resilient element 30 is movable.
  • the resilient element 30 rests against the base body 29 in order to clamp a bobbin thread between the base body 29 and the elastic element 30 as required. Only the free end 32 is spaced from the base body 29 arranged to facilitate the threading of the lower thread 7 between the base body 29 and the resilient element 30.
  • the main body 29 has a guide surface 33, via which the lower thread 7 can be transferred as required and with appropriate pivoting of the gripper holder 9 with the gripper 11 in the direction of the resilient element 30 and thus in the clamping position.
  • the region of the holding element 27, in which the lower thread between the base body 29 and the resilient element 30 is held when needed is arranged laterally offset from the longitudinal axis of the gripper 11, so that emerging from the bore 18 lower thread 7 when arranged in the holding element 27 is aligned anti-parallel to the longitudinal axis of the gripper 11 and extending with the gripper in a V-shaped alignment, so that in a subsequent stitch formation, the needle 3 (Fig. Fig. 1 ) between the lower thread and the gripper 11 punctures and pulls the lower thread 7 from the holding member 27 in the upward movement.

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

Claims (15)

  1. Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette, notamment d'une machine à coudre à point de chaînette double, de préférence d'une machine à coudre à point de chaînette double et à aiguilles multiples, qui comprend une paire d'organes à coudre composée d'une aiguille, qui pénètre dans une matière à coudre, et d'un organe de saisie disposé au-dessous d'un support de matière à coudre et susceptible d'être déplacé selon une trajectoire de déplacement, un fil supérieur étant guidé par l'aiguille à travers la matière à coudre qui est couché sur le support de matière à coudre, le fil supérieur étant relié à un fil inférieur,
    caractérisé en ce que
    le fil inférieur (7) est, en cas de besoin, amené à un élément de retenue (27) et tenu dans celui-ci, lequel élément de retenue (27) est déplacé, en ce qui concerne sa direction de déplacement et/ou sa vitesse de déplacement, par rapport au support de matière à coudre (1) selon une trajectoire de déplacement d'un mouvement pivotant de l'organe de saisie (11), notamment selon une trajectoire de déplacement sous forme de section d'arc de cercle.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    le fil inférieur (7) est tendu entre l'organe de saisie (11) et l'élément de retenue (27).
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    le fil inférieur (7) est essentiellement disposé de sorte qu'il s'étend de manière anti-parallèle à l'axe longitudinal de l'organe de saisie (11) entre la pointe de celui-ci et l'élément de retenue (27).
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    le fil inférieur (7) est amené à l'élément de retenue (27) avant ou pendant l'opération de coupe notamment du fil inférieur (7) effectuée par moyen d'un outil de coupe (19).
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    pendant l'opération de coupe, l'outil de coupe (19) est déplacé jusqu'à la région du fil inférieur (7), notamment jusqu'au point où l'au moins une surface de coupe est adjacente au fil inférieur (7) et l'opération de coupe est effectuée par un déplacement de la matière à coudre (2) par rapport au support de matière à coudre (1) et/ou par un déplacement complémentaire de l'outil de coupe (19).
  6. Procédé selon la revendication 4,
    caractérisé en ce que
    l'outil de coupe (19) est déplacé ensemble avec l'organe de saisie (11) et l'élément de retenue (27).
  7. Procédé selon la revendication 4,
    caractérisé en ce que
    pendant l'opération de couture, l'outil de coupe (19), l'organe de saisie (11) et l'élément de retenue (27) sont déplacés sur une trajectoire de déplacement sous forme de section d'arc de cercle jusqu'à une région où l'outil de coupe (19) ne vient pas en contact avec le fil inférieur (7) et que l'outil de coupe (19), l'organe de saisie (11) et l'élément de retenue (27) sont déplacés sur la région le long de la trajectoire de déplacement et dans la même direction de déplacement pour effectuer l'opération de coupe.
  8. Machine à coudre à point de chaînette, notamment une machine à coudre à point de chaînette double, de préférence une machine à coudre à point de chaînette double et à aiguilles multiples, comprenant une paire d'organes à coudre composée d'une aiguille, qui pénètre dans une matière à coudre, et d'un organe de saisie disposé au-dessous d'un support de matière à coudre et susceptible d'être déplacé selon une trajectoire de déplacement, l'aiguille guidant un fil supérieur à travers la matière à coudre qui est couché sur le support de matière à coudre et le fil supérieur étant relié à un fil inférieur,
    caractérisé
    par un élément de retenue (27) destiné à la retenue, en cas de besoin, du fil inférieur (7), lequel élément de retenue (27) est déplacé, en ce qui concerne sa direction de déplacement et/ou sa vitesse de déplacement, par rapport au support de matière à coudre (1) selon une trajectoire de déplacement d'un mouvement pivotant de l'organe de saisie (11), notamment selon une trajectoire de déplacement sous forme de section d'arc de cercle.
  9. Machine à coudre selon la revendication 8,
    caractérisé en ce que
    l'élément de retenue (27) est disposé sur l'organe de saisie (11), notamment au niveau d'une section de l'organe de saisie (11) qui est susceptible d'être reliée à un arbre d'organe de saisie (8).
  10. Machine à coudre selon la revendication 8,
    caractérisé en ce que
    l'élément de retenue (28) est disposé entre l'organe de saisie (11) et un outil de coupe (19) dans la direction de l'axe longitudinal de l'organe de saisie (11), l'outil de coupe (19) étant susceptible d'être déplacé ensemble avec l'organe de saisie (11).
  11. Machine à coudre selon la revendication 8,
    caractérisé en ce que
    l'élément de retenue (27) est disposé par rapport à l'organe de saisie (11) de sorte que le fil retenu s'étend essentiellement de façon anti-parallèle par rapport à la branche (16) de l'organe de saisie (11) approximativement en forme de L.
  12. Machine à coudre selon la revendication 8,
    caractérisé en ce que
    l'élément de retenue (27) est composé d'un corps de base (29) susceptible d'être relié à un support d'organe de saisie (9), à l'arbre d'organe de saisie (8) et/ou à l'organe de saisie (11) et d'un élément élastique (30) attaché au corps de base (29), la première extrémité de l'élément élastique (30) étant relié au corps de base (29) et la deuxième extrémité (32) étant susceptible d'être déplacée par rapport au corps de base (29) et étant adjacente au corps de base (29).
  13. Machine à coudre selon la revendication 12,
    caractérisé en ce que
    l'élément élastique (30) est fabriqué en acier à ressorts.
  14. Machine à coudre selon la revendication 8,
    caractérisé en ce que
    l'élément de retenue (27) comprend une surface de guidage (33), sur laquelle le fil inférieur (7) est guidé dans une position de retenue en fonction de la position angulaire de l'organe de saisie (11) par rapport au support de matière à coudre (1).
  15. Machine à coudre selon la revendication 10,
    caractérisé en ce que
    l'outil de coupe (19), l'élément de retenue (27) et l'organe de saisie (11) sont disposés l'un par rapport à l'autre de sorte que le fil inférieur (7) est disposé dans l'élément de retenue (27) avant d'arriver à l'outil de coupe (19).
EP11006743.6A 2011-07-01 2011-08-18 Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette et machine à coudre à point de chaînette Active EP2540893B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11006743.6A EP2540893B1 (fr) 2011-07-01 2011-08-18 Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette et machine à coudre à point de chaînette
US13/524,079 US8739714B2 (en) 2011-07-01 2012-06-15 Method for operating a chain stitch sewing machine and chain stitch sewing machine
CN201210228097.2A CN102851881B (zh) 2011-07-01 2012-07-02 操作链形缝迹缝纫机的方法及链形缝迹缝纫机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11005385 2011-07-01
EP11006743.6A EP2540893B1 (fr) 2011-07-01 2011-08-18 Procédé destiné au fonctionnement d'une machine à coudre à point de chaînette et machine à coudre à point de chaînette

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EP2540893A1 EP2540893A1 (fr) 2013-01-02
EP2540893B1 true EP2540893B1 (fr) 2014-04-09

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US (1) US8739714B2 (fr)
EP (1) EP2540893B1 (fr)
CN (1) CN102851881B (fr)

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JP5522577B2 (ja) * 2011-08-08 2014-06-18 ヤマトミシン製造株式会社 縫目のほつれ止め装置付二重環縫いミシン
DE102017207626A1 (de) * 2017-05-05 2018-11-08 Dürkopp Adler AG Verfahren zum Erzeugen eines Naht-Endunterfadens mit vorgegebenem Soll-Nahtüberstand
DE102019113151A1 (de) * 2019-05-17 2020-11-19 Nähmaschinenfabrik Emil Stutznäcker GmbH & Co. KG Vorrichtung zur Befestigung eines Greifers auf einer Greiferwelle einer Textilmaschine

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CN102851881B (zh) 2016-01-13
US8739714B2 (en) 2014-06-03
US20130092066A1 (en) 2013-04-18
CN102851881A (zh) 2013-01-02
EP2540893A1 (fr) 2013-01-02

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