EP2261412B1 - Procédé de verrouillage de coutures - Google Patents

Procédé de verrouillage de coutures Download PDF

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Publication number
EP2261412B1
EP2261412B1 EP10165872.2A EP10165872A EP2261412B1 EP 2261412 B1 EP2261412 B1 EP 2261412B1 EP 10165872 A EP10165872 A EP 10165872A EP 2261412 B1 EP2261412 B1 EP 2261412B1
Authority
EP
European Patent Office
Prior art keywords
seam
locking pattern
layer
locking
pattern
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
EP10165872.2A
Other languages
German (de)
English (en)
Other versions
EP2261412A3 (fr
EP2261412A2 (fr
Inventor
Wilhelm Jockenhöfer
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.)
Wilhelm Jockenhofer & Cokg GmbH
Original Assignee
Wilhelm Jockenhofer & Cokg 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 Wilhelm Jockenhofer & Cokg GmbH filed Critical Wilhelm Jockenhofer & Cokg GmbH
Priority to PL10165872T priority Critical patent/PL2261412T3/pl
Publication of EP2261412A2 publication Critical patent/EP2261412A2/fr
Publication of EP2261412A3 publication Critical patent/EP2261412A3/fr
Application granted granted Critical
Publication of EP2261412B1 publication Critical patent/EP2261412B1/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
    • 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
    • D05B1/18—Seams for protecting or securing edges
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B11/00—Machines for sewing quilts or mattresses
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/08—Cutting the workpiece

Definitions

  • the invention relates to u. a. a method for locking seams in an at least single layer material according to the preamble of claim 1. Furthermore, the invention relates to an at least two-layer material according to the preamble of claim 9.
  • the two-layer material consists of a top layer and a backsheet, through which a sewing device a Thread pulls, creating a seam. As a result, the top and bottom layers are joined together either in their entire extent or in a portion of their extent.
  • the upper layer consists of a rough material and is laminated with the flow-like lower layer and sewn by means of the seams.
  • the seams compress the flow-like sub-layer, creating both a certain visual effect and a three-dimensional impression.
  • Such materials are commonly used in the manufacture of upholstered furniture.
  • the material is several meters long during processing and is provided with a plurality of such, parallel aligned seams. After completion of the seams, the material must be separated into a variety of pieces for further processing.
  • a cutter is passed through the material several times perpendicular to the extent of the seams, whereby the pieces are cut to the desired size. Then the cutting edges are folded over and sewn.
  • Practice has shown, however, that the seams on the (cutting) edges do not hold, but go back on what can extend in the worst case over the entire seam, causing the upper and lower fabric can be separated again.
  • the inventive method for locking the seams in the at least one layered material is sewn at predetermined intervals a locking pattern, which takes place over the longitudinal extent of the at least single-layer material.
  • This interlocking pattern interrupts the seam, but care must be taken to ensure that there is no settling of the sewing device between the seam and the interlocking pattern, but that the seam is continuously inserted into the interlocking pattern and subsequently the stitching Locking pattern continuously merges into the seam again. A temporary discontinuation of the sewing device is not required.
  • the locking pattern is produced in one operation with the seam, which is why after cutting through the at least single-layer material by a cutting unit perpendicular to the seam and directly by the locking pattern an additional step for locking the seam deleted.
  • a further advantage of this invention is that the desired locking pattern is produced only by means of the sewing device required per se and / or the feed device for transporting the at least single-layer material.
  • additional aids can be dispensed with, whereby not only a simple in its implementation, but also a very cost-effective method is used.
  • the seam can have a wide variety of designs and be designed for example as a stitching or decorative stitching.
  • the upper layer and the lower layer of the two-layer material can be additionally or exclusively connected to each other through the seam. This connection occurs along the substantially entire extent of the two-layer material. This has the advantage that not only the connection between the upper and the lower layer of the two-layer material, but also the locking of the seam takes place in one operation.
  • the locking pattern is formed in two parts, wherein the two locking pattern forming parts are formed perpendicular to the seam.
  • the severing of the material in a position approximately midway between the two parts of the interlocking pattern has the effect that each cut-through portion of the two-ply material proximate to both cut edges of the material has an already interlocked seam, as the seam abuts each separating edge terminates with at least a part of the locking structure.
  • the locking pattern can be generated by two different approaches.
  • a suturing device which sews the topsheet and the backsheet of the material by means of the suture, first in a direction to the left of the seam and then back again and then in one direction moved to the right of the seam, (alternatively, a start to the right and another method of the sewing device to the left is possible).
  • the sewing device is then returned to the position of the seam and the seam is further quilted.
  • the two-layered material is displaced in a predetermined direction, whereby a flat locking pattern is formed.
  • the locking pattern can be easily generated when the sewing device is locked in position and the two-layered material to be processed is moved in a predetermined fixed direction to make the seam.
  • the material is pivoted during the forward movement in the predetermined fixed direction first to the left (right) and then back and further to the right (left).
  • an H-like locking structure is produced by the change of the sewing direction, which is simply produced by a section-wise straight process of the sewing device or the material.
  • the legs of the H-shaped locking structure are exactly transverse to the seam and the material is cut through between the two legs parallel and centrally to this.
  • the seam is produced with a different length of the stitches than the locking pattern. Stitches of shorter length provide a stronger bond between the topsheet and the backsheet of the two-ply material. Furthermore, a separation of the seam is made more difficult. For this reason, the locking pattern is produced with a narrow stitch sequence and the seam with a further stitch sequence. The locking pattern forms in this way a particularly stable connection between the upper and lower layers.
  • Particularly simple and time-saving method of the invention can be used in mass production, where the top layer consists of a rough material.
  • the two-layer material is used in the sewing process for making the seam and the Locking pattern unwound from a roll, wherein the on-roll two-layer material is quilted.
  • a cutting device separates the two-layered material between the legs of the H-shaped locking pattern, so that individual pieces of the two-layer material arise whose seam is already locked at the edge of the pieces.
  • This is followed by a known step of kinking and sewing the cutting edges to the singulated piece, the locking pattern being fastened to the back of the singulated piece.
  • the locking pattern thus remains invisible to a viewer. Even in mass production, additional work steps are avoided, which proves to be particularly time-saving.
  • the invention is directed to an at least two-layer material according to claim 9, which is composed of a top layer and a backsheet, which are both joined together by a seam.
  • the suture has one or more locking patterns located at certain distances from each other on the two-part material. The locking pattern is produced in one operation with the seam, in which not only the upper layer and the lower layer are sewn together, but the seam is simultaneously protected against undesired separation.
  • the locking is achieved in that the seam of the locking pattern is approximately perpendicular to the seam. By changing the direction of the seam a separation of the seam is much more difficult. At the same time, any cutting of the material near the locking pattern eliminates reworking to lock the seam.
  • the locking pattern consists of two parts which are approximately symmetrical to each other, but formed perpendicular to the seam. In this case, both parts of the locking pattern extend to both the right and to the left side of the seam, whereby the effect of the lock is increased and a separation of the seam is reliably prevented by the greater extent of the locking pattern.
  • the locking pattern can also run asymmetrically to the seam.
  • each part of the two-part locking pattern is either zigzag-like or wave-like.
  • a particularly easy to produce, yet effective locking pattern is generated when this H-shaped similar.
  • Each leg of the H-shaped locking pattern is transverse to the seam and spans the seam on both sides.
  • Such a locking pattern can be generated by merely pivoting the sewing device to both directions left and right to extend the seam.
  • the two-layered material can be severed precisely between the two legs of the H-shaped locking pattern without the need for additional stitching of the seam.
  • the locking pattern has at least two seams that are either close to each other or running one above the other.
  • the topsheet is formed as an outer layer of a coarse material exposed to environmental effects.
  • the underlayer is almost completely trapped by the topsheet and serves to wrap and thus stabilize the shape of the topsheet.
  • the underlayer may comprise a compressible material.
  • the two-layer material according to the invention can be produced by the method according to the invention.
  • Features and details which are described in connection with the material according to the invention also apply in connection with the method according to the invention and vice versa.
  • the features mentioned in the claims and in the description may each be essential to the invention individually or in combination.
  • the method according to the invention can be used both in single-layered and in at least two-layered material.
  • a two-layer material In the following, reference will only be made to a two-layer material.
  • the top layer 2 which is shown in plan view, meaning the top layer, consists for example of a coarse and hard-wearing material.
  • a plurality of stitching 3a, 3b, 3c extend, which are aligned at equal intervals approximately parallel or asymmetric to each other and extend in the longitudinal direction of the material.
  • Such a stitching 3a, 3b, 3b can be designed as a simple seam or as a multiple seam, which is achieved in particular by a multiple stitching.
  • a decorative stitching can also be used instead of the stitching 3a, 3b, 3c.
  • the stitching 3a, 3b, 3c should be considered further.
  • Each stitching 3a, 3b, 3c has a locking pattern 4a, 4b, 4c across the width of the material on, wherein the locking pattern 4a, 4b, 4c of the illustrated stitching seams are arranged along an imaginary straight line lying at the same height.
  • FIG. 2 A cross-section through the two-layered material 1, which has stitched seams 3a, 3b, 3c, is in FIG Fig. 2 to see.
  • a lamination layer 5 meaning the lower layer, is shown, which consists of a flow-like, compressible material.
  • the lamination layer when sewing with the useful material 2 changes its shape.
  • the cladding layer 5 is compressed by the seams themselves, resulting in the wear layer 2 in the region of the stitching 3a, 3b, 3c results in a depression, while in the other areas of the wear layer 2 has an effect in the form of a three-dimensional alignment of the material of the wear layer 2 results.
  • the lamination layer 5 is placed under the wear layer 2, wherein for the production of the second-layered material 1, the lamination layer 5 and the wear layer 2 are arranged for producing long webs each having a roll not shown.
  • the webs 2, 5 are fed to a sewing device (not shown), which advantageously has several of them Fig. 1 shown parallel running stitching 3a, 3b, 3c and the associated locking pattern 4a, 4b, 4c generated during the forward movement of the two-layer material 1, wherein at the same time the lining layer 5 is sewn to the wear layer 2.
  • the step direction should be based on Fig. 3 be explained in more detail. For the sake of simplicity, only one stitching 3a is considered.
  • the sewing device sews the two-layered material 1 in the direction indicated by the arrow step direction.
  • a vertical seam is pulled as the stitching 3a.
  • the sewing device pivots approximately transversely to the stitching seam 3a and moves in a direction laterally (right) of the stitching seam 3a. Starting from a tip position 4a1, the sewing device moves perpendicular to the stitching 3a in the direction of the other side (left) of the stitching 3a, where it also reaches a tip position 4a2.
  • the sewing device moves again transversely to the direction of expansion of the Stitching seam 3a, where it creates a short piece of a seam in the direction of extension of the stitching 3a, and then again to pivot transversely to the stitching 3a in a direction laterally (right) of the stitching 3a.
  • the sewing device After the sewing device has reached a further tip position 4a3 laterally of the extension direction of the stitching 3a, it moves again perpendicular to the direction of extension of the stitching on the other side (left) of the extension direction, there to take a fourth tip position 4a4. Starting from this tip position 4a4, the sewing device moves again transversely back in the direction of extension of the stitching 3a, where it continues this straight again.
  • the resulting locking pattern 4a shows the shape of the letter H, wherein the legs of the H extend perpendicular to the direction of extension of the stitching 3a. Also in the Fig. 3 a possible section line through the H-shaped locking pattern 4a shown, which is substantially perpendicular to the stitching 3a.
  • the legs of the H-shaped locking pattern 4a are not rectilinear, but zigzag shown.
  • the sewing device starting from the stitching 3a, the sewing device initially moves obliquely with a straight seam in a lateral direction (right) to the stitching 3a, which is also characterized by the arrow direction. Starting from the reached tip position 4a1, the sewing device moves in a zigzag movement to the tip position 4a2 on the other side (left) of the extension direction of the stitching 3a to return from the tip position 4a2 to the position of the stitching 3a.
  • the sewing device again moves to a lateral position (right) to draw a second zigzag seam after reaching the toe position 4a3, which at the lace position 4a4 on the left approaches stitching 3a ends.
  • the sewing device again reaches the direction of expansion of the stitching 3a, which it now executes again.
  • the two zigzag seams are made with a shorter stitch length than the other (stitching) seams.
  • Fig. 5 shows a third example of the execution of an H-shaped locking pattern.
  • the sewing device moves wave-like in the direction of the arrow to one side (left), the shaft approximately perpendicular to Extension direction of the stitching 3a is.
  • the top position 4a2 moves the sewing device on the already generated wavy seam to the stitching 3a and from there to the other side (right) to the top position 4a1.
  • the second leg of the H-shaped interlocking pattern between the toe positions 4a4 and 4a3 is made in the manner described, followed by the continuation of the stitching 3a again.
  • short material webs can be prepared accordingly, wherein the edge region is also secured with a locking pattern.
  • a locking pattern is generated on the two-layered material 1 at greater distances from one another.
  • the distances of the locking pattern in a stitching 3a, 3b, 3c depend on the size of the upholstered furniture, which is to be covered with this material 1.
  • a separating device between the two legs of each locking pattern 4 a, 4 b, 4 c is guided, which in Fig. 1 to Fig. 5 marked with the line 6.
  • a upholstered part 7, which is upholstered with the separated piece of material, is in Fig. 6 shown schematically. Here you can see the wear layer 2 with the stitching 3a 3b, 3c.
  • the H-shaped locking pattern 4a, 4b, 4c are also composed of several, individual components and process sections can, in the embodiments of the Fig. 3 . 4 and FIG. 5 have been explained, whereby even the locking strength of the stitching can be improved. Consequently, a double or multiple seam or a geometric combination of the individual locking patterns 4a, 4b, 4c can be used in order to achieve an increased locking strength of the stitching.

Claims (12)

  1. Procédé pour le verrouillage ou blocage serré d'une couture sur un matériau (1) constitué d'au moins une couche, ledit matériau (1) à au moins une couche étant scindé à intervalles préétablis, transversalement par rapport à la couture (3a, 3b, 3c),
    caractérisé par le fait
    que la couture (3a, 3b, 3c) est munie d'un profil de blocage serré (4a, 4b, 4c) aux intervalles préétablis, le matériau (1) étant scindé à la hauteur de chaque profil de blocage serré (4a, 4b, 4c) après l'achèvement de ladite couture (3a, 3b, 3c), ledit profil de blocage serré (4a, 4b, 4c) étant structuré en deux parties et les deux parties, formant ledit profil de blocage serré (4a, 4b, 4c), étant produites approximativement dans le sens transversal vis-à-vis de l'étendue de ladite couture (3a, 3b, 3c), et étant séparées entre lesdites deux parties dudit profil de blocage serré (4a, 4b, 4c).
  2. Procédé selon la revendication 1,
    caractérisé par le fait
    l'utilisation d'un matériau (1) à deux couches dont la couche supérieure (2) et la couche inférieure (5) sont reliées l'une à l'autre, par l'intermédiaire de la couture, pour l'essentiel le long de la totalité de l'étendue dudit matériau à deux couches.
  3. Procédé selon la revendication 1,
    caractérisé par le fait
    que le profil de blocage serré (4a, 4b, 4c) est produit par mouvement imprimé à un dispositif de couture au cours d'un mouvement d'avance du matériau (1), continûment et en succession vers les deux côtés de la couture (3a, 3b, 3c).
  4. Procédé selon la revendication 1,
    caractérisé par le fait
    que le profil de blocage serré (4a, 4b, 4c) est produit par mouvement continu imprimé au matériau (1), au cours se son mouvement d'avance, en succession vers les deux côtés de la couture (3a, 3b, 3c).
  5. Procédé selon au moins l'une des revendications précédentes,
    caractérisé par le fait
    qu'un profil de blocage serré (4a, 4b, 4c), configuré en H, est produit par une modification de la direction du piquage, les branches dudit profil de blocage serré (4a, 4b, 4c), configuré en H, étant ménagées à peu près perpendiculairement à l'étendue de la couture (3a, 3b, 3c).
  6. Procédé selon au moins l'une des revendications précédentes,
    caractérisé par le fait
    que le profil de blocage serré (4a, 4b, 4c) est produit avec une première longueur de point, tandis que la couture (3a, 3b, 3c) est confectionnée avec une seconde longueur de point.
  7. Procédé selon la revendication 6,
    caractérisé par le fait
    que la première longueur de point est plus petite que la seconde longueur de point.
  8. Procédé selon au moins l'une des revendications 5 à 7,
    caractérisé par le fait
    que, en vue de produire la couture (3a, 3b, 3c) et le profil de blocage serré (4a, 4b, 4c), le matériau (1) est dévidé d'un rouleau en mouvement et, à l'issue du piquage intégral du matériau (1) situé sur ledit rouleau, un dispositif de sectionnement est engagé entre les branches du profil de blocage serré (4a, 4b, 4c) configuré en H, afin de scinder ledit matériau (1) en des pièces individuelles, chaque bord desdites pièces, portant respectivement une branche dudit profil de blocage serré (4a, 4b, 4c) configuré en H, étant cousu et, en particulier, rabattu préalablement au couturage.
  9. Matériau (1) constitué d'au moins deux couches, comprenant une couche supérieure (2) et une couche inférieure (5) reliées l'une à l'autre au moyen d'une couture (3a, 3b, 3c),
    caractérisé par le fait
    que la couture (3a, 3b, 3c) est munie d'un profil de verrouillage ou blocage serré (4a, 4b, 4c), à intervalles préétablis, le matériau (1) étant scindé à la hauteur de chaque profil de blocage serré (4a, 4b, 4c) après l'achèvement de ladite couture (3a, 3b, 3c), ledit profil de blocage serré (4a, 4b, 4c) étant structuré en deux parties et les deux parties, formant ledit profil de blocage serré (4a, 4b, 4c), étant produites approximativement dans le sens transversal vis-à-vis de l'étendue de ladite couture (3a, 3b, 3c), et étant séparées entre lesdites deux parties dudit profil de blocage serré (4a, 4b, 4c).
  10. Matériau selon la revendication 9,
    caractérisé par le fait
    que le profil de blocage serré (4a, 4b, 4c), structuré en deux parties, comporte des régions en forme de zigzag ou de forme ondulée.
  11. Matériau selon la revendication 9 ou 10,
    caractérisé par le fait
    que le profil de blocage serré (4a, 4b, 4c) est parcouru au moins deux fois.
  12. Matériau selon au moins l'une des revendications 9 à 11 précédentes,
    caractérisé par le fait
    que la couche supérieure (2) dudit matériau (1) représente une couche d'usure, tandis que la couche inférieure (5) est une couche de doublage.
EP10165872.2A 2009-06-12 2010-06-14 Procédé de verrouillage de coutures Not-in-force EP2261412B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10165872T PL2261412T3 (pl) 2009-06-12 2010-06-14 Sposób ryglowania szwów

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009025172A DE102009025172A1 (de) 2009-06-12 2009-06-12 Verfahren zur Verriegelung von Nähten bei einem wenigstens zweischichtigen Material sowie ein wenigstens zweischichtiges Material

Publications (3)

Publication Number Publication Date
EP2261412A2 EP2261412A2 (fr) 2010-12-15
EP2261412A3 EP2261412A3 (fr) 2011-02-09
EP2261412B1 true EP2261412B1 (fr) 2013-08-14

Family

ID=42830121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10165872.2A Not-in-force EP2261412B1 (fr) 2009-06-12 2010-06-14 Procédé de verrouillage de coutures

Country Status (3)

Country Link
EP (1) EP2261412B1 (fr)
DE (1) DE102009025172A1 (fr)
PL (1) PL2261412T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314090A1 (de) 1973-03-21 1974-10-03 Schiesser Ag Verfahren und vorrichtung zum verriegeln von naehten mit auslaufender fadenkette
SE432830B (sv) * 1977-09-06 1984-04-16 Barracudaverken Ab Maskeringsduk med stodnet och hermed hopfestad garnering av plastfolie
IT1131662B (it) * 1980-06-24 1986-06-25 Meca Snc Procedimento per unire automaticamente con cuciture multiple un foglio di materiale ad una rete e prodotto cosi' ottenuto
US5707709A (en) * 1993-04-27 1998-01-13 Blake; Steven A. Twin ply fabric, uses and manufacture thereof
DE102007012621B4 (de) * 2007-02-09 2011-03-31 Nähmaschinenfabrik Emil Stutznäcker GmbH & Co. KG Verfahren und Vorrichtung zur Herstellung eines Nähguts

Also Published As

Publication number Publication date
DE102009025172A1 (de) 2010-12-16
EP2261412A3 (fr) 2011-02-09
EP2261412A2 (fr) 2010-12-15
PL2261412T3 (pl) 2014-01-31

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