EP3805440A1 - Procédé d'application d'un couture décorative ainsi que dispositif de couture - Google Patents

Procédé d'application d'un couture décorative ainsi que dispositif de couture Download PDF

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Publication number
EP3805440A1
EP3805440A1 EP20200116.0A EP20200116A EP3805440A1 EP 3805440 A1 EP3805440 A1 EP 3805440A1 EP 20200116 A EP20200116 A EP 20200116A EP 3805440 A1 EP3805440 A1 EP 3805440A1
Authority
EP
European Patent Office
Prior art keywords
seam
skin
decorative
sewing
skin area
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.)
Pending
Application number
EP20200116.0A
Other languages
German (de)
English (en)
Inventor
Marion Trumpf
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.)
Faurecia Innenraum Systeme GmbH
Original Assignee
Faurecia Innenraum Systeme 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 Faurecia Innenraum Systeme GmbH filed Critical Faurecia Innenraum Systeme GmbH
Publication of EP3805440A1 publication Critical patent/EP3805440A1/fr
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B31/00—Workpiece holders or hold-downs in machines for sewing leather

Definitions

  • the invention relates to a method for making a decorative seam in a three-dimensionally shaped skin of a body, in particular in a three-dimensionally shaped trim part.
  • the invention also relates to a sewing device for making a decorative seam in a three-dimensionally shaped skin of a body.
  • Three-dimensionally shaped skins occur in the form of trim parts, especially in the interiors of vehicles. It can be trim parts of dashboards, door interior parts and / or center consoles.
  • Textiles, plastics, leather or artificial leather are widely used as materials for such trim parts or, generally speaking, for skins.
  • decorative seams are used to give the trim parts an attractive visual appearance, which is particularly perceived as being of particularly high quality.
  • Decorative seams are usually not used to mechanically connect components. The decorative seams therefore have more of an optical than a mechanical character.
  • step a) that skin area into which the decorative seam is to be made is therefore initially fixed in a plane based on its three-dimensional shape.
  • the skin area can in particular be pulled or pressed manually until the desired flat state is reached.
  • a flat state it is possible to process the skin area on a so-called CNC sewing machine, in which a relative movement in only two dimensions is provided between a sewing unit and a workpiece to be processed, i.e. the skin area.
  • the decorative stitching is fully automated. Only the transferring and fixing of the skin area in the plane remains a manual process. This means that decorative seams can be created quickly and easily. In addition, decorative seams can be produced in a reproducible high quality.
  • a decorative seam should always be understood to include a large number of stitches.
  • the entire seam is always created in one setting.
  • the previous production of decorative seams by means of conventional sewing machines thus includes a large number of clamping states.
  • the skin area to be provided with the decorative seam can be positioned in a flat target position by means of a seam sword and / or a clamping strip.
  • the positioning also implies holding the skin area in its flat target position.
  • the skin section is thus reliably and precisely held in its flat state. As a result, high quality decorative seams can be produced.
  • the seam sword can be attached to the clamping strip.
  • the decorative seam is then sewn in parallel to the seam sword on a side of the same facing away from the clamping strip.
  • the seam blade and / or the clamping strip preferably extend or extend essentially along the entire skin area to be provided with the decorative seam. This means that the seam blade and / or the clamping strip are the same length or longer than a decorative seam to be created.
  • the decorative seam can thus be sewn into the skin without loosening the positioning via the seam blade and / or the clamping strip. In other words, the decorative seam is created in just one stretch. This means that high-quality decorative seams can be produced comparatively quickly.
  • step b) the seam sword and / or the clamping bar remain stationary relative to the skin and / or there is a relative movement between a sewing unit and the skin.
  • the skin does not slide off the seam blade.
  • the relative movement can take place in two alternatives.
  • the suture sword and / or the clamping bar as well as the skin remain stationary and the sewing unit moves relative to these parts.
  • the sewing unit essentially moves along the seam blade and / or the clamping strip.
  • the sewing unit and the sewing sword and / or the sewing unit are arranged stationary in space Clamping strips are moved together with the skin and a movable support board relative to the sewing unit.
  • a first section of the skin area is first positioned in the planar target position by means of a first sub-area of the seam sword and then a second section of the skin area is positioned in the planar target position by means of a second sub-area of the seam sword.
  • This procedure is particularly useful for comparatively large areas of skin and / or comparatively long decorative seams. A person who is entrusted with positioning the skin area therefore only has to pay attention to the first section. With this section in place, the person can pay attention to the second section. Ornamental seams of great length can thus also be created reliably and in reproducible high quality.
  • the seam sword can also be subdivided into more than two sub-areas.
  • the above explanations apply analogously and the skin area is successively positioned by means of the various sub-areas.
  • the decorative seam can be introduced parallel to a guide contour on the skin and / or a guide marking on the skin.
  • a guide contour is z. B. formed by a recess or a groove that is already present in the skin before the decorative stitching is introduced.
  • a deepening in the vicinity of an already existing functional seam is also to be regarded as such a guide contour.
  • a guide marking is a purely optical element on the skin.
  • the seam sword is placed on the guide contour and / or on the guide marking.
  • the decorative seams can thus be aligned with the guide contour and / or the guide marking with high precision.
  • the seam sword engages preferably in this one. The result is a particularly precise positioning of the skin area.
  • a sewing device of the type mentioned at the outset which comprises a flat holding device, by means of which a skin area to be provided with the decorative seam can be fixed in one plane, and a sewing unit for sewing in the decorative seam in the fixed plane.
  • a length of the flat holding device corresponds essentially to a length of the decorative seam to be created.
  • the compartment holding device is longer than the decorative seam to be created.
  • the flat holding device comprises a clamping strip and / or a suture blade for positioning the skin area.
  • the clamping strip and / or the seam sword can also be used to hold the skin area.
  • a length of the seam sword and / or the clamping strip corresponds essentially to at least one length of the decorative seam to be created.
  • the decorative seam can thus be produced without loosening the skin area from the clamping strip and / or the seam sword.
  • the suture sword can be made up of several parts, with the partial areas of the suture sword for positioning the skin area being movable independently of one another. As already explained, particularly long decorative seams and / or large areas of skin can be processed in this way. Even under these conditions, high-quality decorative seams result.
  • FIG 1 a three-dimensionally shaped skin 10 of a body is shown.
  • This skin is, for example, a skin produced from PVC (polyvinyl chloride) or TPU (thermoplastic polyurethane) by a powder sintering process (slush molding).
  • this represents a trim part of a dashboard.
  • a decorative seam 12 is sewn into a skin area 14, which is marked by means of a dash-dotted line.
  • the decorative seam 12 runs parallel to an already existing functional seam 16, which represents a guide contour with respect to the decorative seam 12 and is sewn to one another by means of the two skin parts.
  • the decorative seam 12 is introduced by means of a sewing device 18 (see Figures 2 to 5 ).
  • This is essentially composed of a flat holding device 20 and a sewing unit 22.
  • the flat holding device 20 serves to fix the skin area 14 to be provided with the decorative seam 12 in one plane.
  • the decorative seam 12 can be sewn in by means of the sewing unit 22.
  • a support board 24 for the skin 10 to be provided with the decorative seam 12 is arranged below the flat holding device 20.
  • the sewing device 18 can be designed according to two alternatives.
  • the sewing unit 22 is fixed in space and the flat holding device 20 can be moved together with the support board 24 and a skin 10 that may be held in the flat holding device 20.
  • both the flat holding device 20 and the support board 24 are fixed in space.
  • the sewing unit 22 can then preferably be moved in two dimensions relative to the flat holding device 20 and the support board 24.
  • the flat holding device 20 comprises a clamping strip 26 and a seam blade 28, both of which serve to position the skin area 14 to be sent with the decorative seam 12 in a flat target position.
  • a maximum length of the decorative seam 12 is specified by means of the seam sword 28. This can namely be as long as the seam sword 28 at most.
  • the seam sword 28 is constructed in several parts and, in the embodiment shown, comprises three subregions 28a, 28b and 28c which can be moved independently of one another. This facilitates the fixing of the skin area to be provided with the decorative seam 12, as will be explained later.
  • the decorative seam 12 is introduced into the skin 10 as follows.
  • That skin area 14 into which the decorative seam 12 is to be made is transferred in a flat state and is also fixed in this state.
  • the skin area 14 is first placed on the support board 24.
  • a first section 14a of the skin area is then positioned in its planar target position by means of the clamping strip 26 and the partial area 28a of the seam sword 28.
  • the partial area 28a of the seam sword 28 engages in a through the functional seam 16 on the upper side of the skin 10 formed recess.
  • the functional seam 16 thus serves as a guide contour and the decorative seam 12 is introduced into the skin 10 parallel to it.
  • a second section 14b of the skin area 14 is positioned in its planar target position by means of the sub-area 28b of the seam sword 28.
  • the sub-area 28b also engages in the recess formed by the functional seam 16.
  • both the clamping strip 26 and the seam sword 28 extend along the entire skin area 14 to be provided with the decorative seam 12.
  • the decorative seam 12 is approximately the same length as the seam sword 28.
  • the decorative seam 12 is then sewn in by means of the sewing unit 22.
  • a relative movement takes place between the sewing unit 22 and the skin 10, the clamping strip 26, the seam sword 28 and the skin 10 not moving relative to one another.
  • the decorative seam 12 is produced parallel to the seam sword 28.
  • the skin 10 can then be removed again from the sewing device 18 and mounted on a body, in the present case on a dashboard, as a trim part.
  • the decorative seam 12 is not produced between the seam sword 28 and the clamping strip 26, but to the side of the seam sword 28.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP20200116.0A 2019-10-09 2020-10-05 Procédé d'application d'un couture décorative ainsi que dispositif de couture Pending EP3805440A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019127185.1A DE102019127185A1 (de) 2019-10-09 2019-10-09 Verfahren zum Einbringen einer Ziernaht sowie Nähvorrichtung

Publications (1)

Publication Number Publication Date
EP3805440A1 true EP3805440A1 (fr) 2021-04-14

Family

ID=72752362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20200116.0A Pending EP3805440A1 (fr) 2019-10-09 2020-10-05 Procédé d'application d'un couture décorative ainsi que dispositif de couture

Country Status (2)

Country Link
EP (1) EP3805440A1 (fr)
DE (1) DE102019127185A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010037177A1 (de) * 2010-08-26 2012-03-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung
DE202012005376U1 (de) * 2012-06-01 2012-07-31 Artur Schambach Lehren- Und Werkzeugbau Gmbh Modulares Nahtschwert zum Kaschieren von Kraftfahrzeugbauteilen
DE102015004280A1 (de) * 2015-04-08 2015-09-24 Leather Components Vertriebs-Ug (Haftungsbeschränkt) Verfahren zum automatisierten Nähen von Ziernähten
CN109402880A (zh) * 2018-10-10 2019-03-01 重庆延锋安道拓汽车部件系统有限公司 面套裁片的块状凸起结构缝纫方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7319345U (de) * 1973-09-06 Duerkoppwerke Gmbh Arbeitsstückführungsvorrichtung
DE506094C (de) * 1928-05-26 1930-08-28 Vogtlaendische Maschinenfabrik Einsatzrahmen fuer Stickmaschinen
DE571419C (de) * 1932-02-25 1933-02-28 Wuerker G M B H Runder bzw: ovaler Spannrahmen zum Besticken von zugeschnittener Ware
DE3522329C1 (de) * 1985-06-22 1986-08-28 Dürkoppwerke GmbH, 4800 Bielefeld Arbeitsstueck-Fuehrungslineal mit einer Naehgut-Streckvorrichtung fuer eine Naehmaschine
DE202011102017U1 (de) * 2011-06-17 2011-08-31 Lisa Dräxlmaier GmbH Vorrichtung zur Herstellung von genähte Dekorbezüge aufweisenden Interieurbauteilen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010037177A1 (de) * 2010-08-26 2012-03-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung
DE202012005376U1 (de) * 2012-06-01 2012-07-31 Artur Schambach Lehren- Und Werkzeugbau Gmbh Modulares Nahtschwert zum Kaschieren von Kraftfahrzeugbauteilen
DE102015004280A1 (de) * 2015-04-08 2015-09-24 Leather Components Vertriebs-Ug (Haftungsbeschränkt) Verfahren zum automatisierten Nähen von Ziernähten
CN109402880A (zh) * 2018-10-10 2019-03-01 重庆延锋安道拓汽车部件系统有限公司 面套裁片的块状凸起结构缝纫方法

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