EP0348450B1 - Presser foot in a sewing machine - Google Patents

Presser foot in a sewing machine Download PDF

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Publication number
EP0348450B1
EP0348450B1 EP88909504A EP88909504A EP0348450B1 EP 0348450 B1 EP0348450 B1 EP 0348450B1 EP 88909504 A EP88909504 A EP 88909504A EP 88909504 A EP88909504 A EP 88909504A EP 0348450 B1 EP0348450 B1 EP 0348450B1
Authority
EP
European Patent Office
Prior art keywords
support
grooves
sewing
presser
bar
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.)
Expired - Lifetime
Application number
EP88909504A
Other languages
German (de)
French (fr)
Other versions
EP0348450A1 (en
Inventor
Antonio Jimenez
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.)
Mefina SA
Original Assignee
Mefina SA
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Filing date
Publication date
Application filed by Mefina SA filed Critical Mefina SA
Publication of EP0348450A1 publication Critical patent/EP0348450A1/en
Application granted granted Critical
Publication of EP0348450B1 publication Critical patent/EP0348450B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D05B65/00—Devices for severing the needle or lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B79/00—Incorporations or adaptations of lighting equipment
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet

Definitions

  • a presser device comprising a support provided with means for retaining and releasing a presser foot.
  • the present invention aims to facilitate the establishment and removal of sewing accessories on the presser device.
  • This object is achieved thanks to the fact that the support is in the general shape of a parallelepiped and has two pairs of grooves, the grooves of the first pair being formed on two opposite lateral faces of the support, the grooves of the second pair being formed on both other opposite lateral faces of the support, these grooves forming guide rails to allow mounting on the support at least one sewing accessory.
  • Figure 1 is a perspective view of the bottom of a press bar and shows various sewing accessories which can be attached to this bar.
  • Figure 2 is a section of the support integral with the lower end of the press bar taken in the direction of movement of the fabric.
  • Figure 3 is a view of the upper face of this support.
  • Figure 4 is a front view of this support.
  • Figure 1 shows in perspective part of a stuffing bar 1 whose lower end is provided with a support 2.
  • This support has a notch 3 allowing the fixing of a stuffing foot 4 which is provided with 'a transverse bar 5.
  • the presser foot is retained in the notch 3 by means of a sliding blade 6 which can be retracted to release the foot by acting on a control lever 7 having a fixing plate 8 to which it is connected by a flexible blade 9.
  • the blade 6 has a head 10 connected to part of the lever 7.
  • a pressure exerted on this lever 7 exerts a withdrawal of the blade 6 to release the notch 3 by bending the arm 9.
  • the support 2 has 2 parallel grooves 11 and 12 formed on two opposite side faces of the support. These grooves make it possible to fix on the support various sewing accessories having a portion provided with tongues 13 and 14 coming to engage in said grooves. Two examples of the shape of these portions are indicated in 15 and 16 of FIG. 1.
  • the support 2 also has a bore 17 allowing the attachment of accessories provided with a rod such as 18 or 19 coming to engage in the bore 17, which is orthogonal to the axis of the bar 1.
  • the support 2 is provided with a wire cutter device 20, for example of the kind described in Swiss patent N ° 635.803.
  • a locking rod 22 intended to engage in an opening 23 provided on the upper base of the support 2 to form a notch to hold in place the accessory combined with the portion 15.
  • the support also has two front and rear sides. grooves 24 and 25, so that it is possible to simultaneously fix on the support 2 different sewing accessories, for example a particular foot, in particular a foot for darning and a transparent protective screen intended to prevent the user from being able to insert your fingers into the needle working area.
  • different sewing accessories for example a particular foot, in particular a foot for darning and a transparent protective screen intended to prevent the user from being able to insert your fingers into the needle working area.
  • the front face of the support 2 is provided with a translucent window 26 behind which there is an electric bulb 27 (FIG. 2) mounted in the lower part of the bar 1, which facilitates the operation of introducing the wire into the eye of the needle.
  • an electric bulb 27 (FIG. 2) mounted in the lower part of the bar 1, which facilitates the operation of introducing the wire into the eye of the needle.
  • the support described makes it possible to fix sewing accessories to the stuffing bar such as a darning foot, a gathered foot, a loop foot, a universal fabric guide, a monogamous guide, etc.
  • the support 2 could have only a single groove, the latter being able for example to be a dovetail and to be provided with a clamping screw to block the part introduced into this groove.

Landscapes

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

Abstract

The lower extremity of the presser bar (1) of a sewing machine is provided with a support (2) having grooves (11 and 12) and a bore (17) for fastening various sewing attachments having fastening portions (15, 16, 18, or 19). The bar (5) of a presser foot (4) engages in a notch (3) of the support (2).

Description

Dans les machines à coudre, il est connu de prévoir un dispositif presse-étoffe comprenant un support muni de moyens pour la retenue et la libération d'un pied presse-étoffe.In sewing machines, it is known to provide a presser device comprising a support provided with means for retaining and releasing a presser foot.

Il est aussi connu de prévoir différents accessoires de couture pouvant être utilisés avec une machine à coudre, accessoires qui sont souvent fixés à la barre presse-étoffe. Le rapport de recherche a cité à ce sujet les brevets US N° 4.548.145, 2.545.980, FR N° 1.240.290 et EP N° 0 047 225 comme faisant partie de l'arrière-plan technologique. Ainsi, le brevet US N° 4.548.145 décrit un dispositif presse-étoffe pour machines à coudre comprenant un support muni de moyens pour la retenue et la libération d'un pied presse-étoffe. Ce support présente deux épaulements destinés au montage d'une pièce de fixation du pied-presseur. Le brevet US N° 2.545.980 décrit le montage d'un organe coupe-fil sur le support d'un dispositif presse-étoffe. Dans le brevet français N° 1.240.290 un dispositif d'éclairage direct de la zone de travail est monté sur le support du dispositif presse-étoffe. Finalement, le document EP N° 0 047 225 montre la présence de contacts électriques disposés entre le pied presse-étoffe et son support. Ces contacts électriques permettent de contrôler si le pied presse-étoffe monté correspond au travail de couture programmé sur la machine à coudre.It is also known to provide various sewing accessories which can be used with a sewing machine, accessories which are often attached to the stuffing bar. The research report cited US Pat. Nos. 4,548,145, 2,545,980, FR No. 1,240,290 and EP No. 0,047,225 on this subject as part of the technological background. Thus, US Pat. No. 4,548,145 describes a stuffing device for sewing machines comprising a support provided with means for retaining and releasing a stuffing foot. This support has two shoulders intended for mounting a fixing part of the presser foot. US Patent No. 2,545,980 describes the mounting of a thread cutter member on the support of a stuffing device. In French patent N ° 1,240,290 a device for direct lighting of the working area is mounted on the support of the stuffing device. Finally, document EP No. 0 047 225 shows the presence of electrical contacts arranged between the presser foot and its support. These electrical contacts allow you to check whether the fabric press foot fitted corresponds to the sewing work programmed on the sewing machine.

La présente invention a pour but de faciliter la mise en place et l'enlèvement d'accessoires de couture sur le dispositif presse-étoffe. Ce but est atteint grâce au fait que le support est en forme générale de parallélépipède et présente deux paires de rainures, les rainures de la première paire étant ménagées sur deux faces latérales opposées du support, les rainures de la seconde paire étant ménagées sur les deux autres faces latérales opposées du support, ces rainures formant des glissières de guidage pour permettre de monter sur le support au moins un accessoire de couture.The present invention aims to facilitate the establishment and removal of sewing accessories on the presser device. This object is achieved thanks to the fact that the support is in the general shape of a parallelepiped and has two pairs of grooves, the grooves of the first pair being formed on two opposite lateral faces of the support, the grooves of the second pair being formed on both other opposite lateral faces of the support, these grooves forming guide rails to allow mounting on the support at least one sewing accessory.

Le dessin annexé montre schématiquement et à titre d'exemple une forme d'exécution de l'objet de l'invention.The accompanying drawing shows schematically and by way of example an embodiment of the subject of the invention.

La figure 1 est une vue en perspective de la partie inférieure d'une barre presse-étoffe et montre divers accessoires de couture pouvant être fixés à cette barre.Figure 1 is a perspective view of the bottom of a press bar and shows various sewing accessories which can be attached to this bar.

La figure 2 est une coupe du support solidaire de l'extrémité inférieure de la barre presse-étoffe prise dans la direction de déplacement du tissu.Figure 2 is a section of the support integral with the lower end of the press bar taken in the direction of movement of the fabric.

La figure 3 est une vue de la face supérieure de ce support.Figure 3 is a view of the upper face of this support.

La figure 4 est une vue de face de ce support.Figure 4 is a front view of this support.

La figure 1 représente en perspective une partie d'une barre presse-étoffe 1 dont l'extrémité inférieure est munie d'un support 2. Ce support présente une encoche 3 permettant la fixation d'un pied presse-étoffe 4 qui est muni d'une barrette transversale 5. Comme on le voit à la figure 2, le pied presse-étoffe est retenu dans l'encoche 3 au moyen d'une lame coulissante 6 qui peut être rétractée pour libérer le pied en agissant sur un lever de commande 7 présentant une plaque de fixation 8 auquel il est relié par une lame souple 9. La lame 6 présente une tête 10 reliée à une partie du lever 7. Une pression exercée sur ce lever 7 exerce un retrait de la lame 6 pour dégager l'encoche 3 grâce à une flexion du bras 9. Comme le montrent les figures 1 et 4, le support 2 présente 2 rainures parallèles 11 et 12 ménagées sur deux faces latérales opposées du support. Ces rainures permettent de fixer sur le support divers accessoires de couture présentant une portion munie de languettes 13 et 14 venant s'engager dans lesdites rainures. Deux exemples de la forme de ces portions sont indiqués en 15 et 16 de la figure 1.Figure 1 shows in perspective part of a stuffing bar 1 whose lower end is provided with a support 2. This support has a notch 3 allowing the fixing of a stuffing foot 4 which is provided with 'a transverse bar 5. As seen in Figure 2, the presser foot is retained in the notch 3 by means of a sliding blade 6 which can be retracted to release the foot by acting on a control lever 7 having a fixing plate 8 to which it is connected by a flexible blade 9. The blade 6 has a head 10 connected to part of the lever 7. A pressure exerted on this lever 7 exerts a withdrawal of the blade 6 to release the notch 3 by bending the arm 9. As shown in Figures 1 and 4, the support 2 has 2 parallel grooves 11 and 12 formed on two opposite side faces of the support. These grooves make it possible to fix on the support various sewing accessories having a portion provided with tongues 13 and 14 coming to engage in said grooves. Two examples of the shape of these portions are indicated in 15 and 16 of FIG. 1.

Le support 2 présente encore un perçage 17 permettant la fixation d'accessoires muni d'une tige telle que 18 ou 19 venant s'engager dans le perçage 17, qui est orthogonal à l'axe de la barre 1.The support 2 also has a bore 17 allowing the attachment of accessories provided with a rod such as 18 or 19 coming to engage in the bore 17, which is orthogonal to the axis of the bar 1.

Le support 2 est muni d'un dispositif coupe-fil 20, par exemple du genre de celui décrit dans le brevet suisse N° 635.803.The support 2 is provided with a wire cutter device 20, for example of the kind described in Swiss patent N ° 635.803.

Dans le cas de la portion 15, qui présente une échancrure 21 venant s'engager sur la base de la barre 1, il est prévu une tige de verrouillage 22 destinée à s'engager dans une ouverture 23 prévue sur la base supérieure du support 2 pour constituer un cran pour maintenir en place l'accessoire combiné avec la portion 15.In the case of the portion 15, which has a notch 21 coming to engage on the base of the bar 1, there is provided a locking rod 22 intended to engage in an opening 23 provided on the upper base of the support 2 to form a notch to hold in place the accessory combined with the portion 15.

Le support présente encore sur ses faces avant et arrière deux. rainures 24 et 25, de sorte qu'il est possible de fixer simultanément sur le support 2 des accessoires de couture différents, par exemple un pied particulier, notamment un pied pour le reprisage et un écran protecteur transparent destiné à éviter que l'usager puisse introduire ses doigts dans la zone de travail de l'aiguille.The support also has two front and rear sides. grooves 24 and 25, so that it is possible to simultaneously fix on the support 2 different sewing accessories, for example a particular foot, in particular a foot for darning and a transparent protective screen intended to prevent the user from being able to insert your fingers into the needle working area.

La face avant du support 2 est munie d'une fenêtre 26 translucide derrière laquelle se trouve une ampoule électrique 27 (figure 2) montée dans la partie inférieure de la barre 1, qui facilite l'opération d'introduction du fil dans le chas de l'aiguille.The front face of the support 2 is provided with a translucent window 26 behind which there is an electric bulb 27 (FIG. 2) mounted in the lower part of the bar 1, which facilitates the operation of introducing the wire into the eye of the needle.

En vue d'obtenir une commande automatique du mode de fonctionnement de la machine, il est possible de prévoir un ou plusieurs contacts électriques sur le support 1, ces contacts étant destinés à être rendus actifs par la mise en place d'un accessoire déterminé sur le support. Ces contacts pourraient être placés dans une ou plusieurs des rainures 11, 12, 24 et 25, ou encore à l'intérieur de l'alésage 17 ou au dessous de l'ouverture 23. Il est évident que ces contacts devraient être reliés à au moins un conducteur isolé passant dans la barre 1, cette dernière présentant une portion conductrice séparée coopérant avec une prise de contact faisant partie de la machine à coudre. Ainsi, lorsqu'on utilise un accessoire de couture demandant une vitesse plus basse ou au contraire plus élevée que la gamme de vitesse habituelle, la fermeture d'un contact correspondant pourrait être utilisé pour commander le changement de vitesse approprié. Ce ou ces contacts pourraient aussi être prévus pour alimenter au moins un moteur ou un dispositif faisant partie d'un accessoire. A titre d'exemple, on peut prévoir un moteur électrique pour actionner un accessoire coupe-tissu, ou même deux moteurs pour commander des déplacements prédéterminés d'un ouvrage de broderie.In order to obtain an automatic control of the operating mode of the machine, it is possible to provide one or more electrical contacts on the support 1, these contacts being intended to be made active by the installation of a specific accessory on the support. These contacts could be placed in one or more of the grooves 11, 12, 24 and 25, or even inside the bore 17 or below the opening 23. It is obvious that these contacts should be connected to the at least one insulated conductor passing through the bar 1, the latter having a separate conductive portion cooperating with a contact making part of the sewing machine. Thus, when using a sewing accessory requesting a speed lower or on the contrary higher than the usual speed range, the closing of a corresponding contact could be used to control the appropriate change of speed. This or these contacts could also be provided to supply at least one motor or a device forming part of an accessory. For example, an electric motor can be provided to activate a fabric cutter accessory, or even two motors to control predetermined movements of an embroidery work.

Le support décrit permet de fixer à la barre presse-étoffe des accessoires de couture tel qu'un pied à repriser, un pied fronceur, un piedboucle, un guide tissu universel, un guide monogame, etc.The support described makes it possible to fix sewing accessories to the stuffing bar such as a darning foot, a gathered foot, a loop foot, a universal fabric guide, a monogamous guide, etc.

Il est bien entendu que l'on pourrait prévoir diverses modifications ou simplifications. Notamment, le support 2 pourrait ne présenter qu'une seule rainure, celle-ci pouvant être par exemple en queue d'aronde et être munie d'une vis de serrage pour bloquer la partie introduite dans cette rainure.It is understood that there could be various modifications or simplifications. In particular, the support 2 could have only a single groove, the latter being able for example to be a dovetail and to be provided with a clamping screw to block the part introduced into this groove.

Claims (8)

  1. Presser device in a sewing machine comprising a support (2) provided with means (3) for holding and releasing a presser foot (4), characterized in that the support (2) is of a generally parallelpiped shape and comprises two pairs of grooves, the grooves (11,12) of the first pair being arranged on two opposing lateral faces of the support (2), the grooves (24,25) of the second pair being arranged on the other two opposing lateral faces of the support (2), these grooves forming sliding guides allowing to mount at least one sewing attachment to the support.
  2. Device according to claim 1, characterized in that one face of the support (2) comprises a translucent window (26), an electrical bulb (27), being arranged in the support behind the said window (26).
  3. Device according to any one of the preceeding claims, characterized in that the support also comprises at least one bore (17) for receiving a rod (18) for securing a sewing attachement.
  4. Device according to claim 3, characterized in that the bore (17) of the support (2) is perpendicular to the axis of the presser bar (1).
  5. Device according to any one of claims 1 to 4, characterized in that the support (2) is provided with a thread cutting device (20).
  6. Device according to any one of claims 1 to 5, characterised in that each pair of grooves (11,12, and/or 24/25) defines a plane perpendicular to the axis of the presser bar (1).
  7. Device according to any one of claims 1 to 6, characterized in that the support (2) has at least one detent (22,23) for holding the sewing attachements on the support.
  8. Device according to any one of claims 1 to 7, characterized in that the support (2) is provided with at least one electrical contact arranged in such a manner that it is actuated by a specific attachment placed on the support.
EP88909504A 1987-12-22 1988-11-16 Presser foot in a sewing machine Expired - Lifetime EP0348450B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4994/87 1987-12-22
CH4994/87A CH674656A5 (en) 1987-12-22 1987-12-22

Publications (2)

Publication Number Publication Date
EP0348450A1 EP0348450A1 (en) 1990-01-03
EP0348450B1 true EP0348450B1 (en) 1993-06-02

Family

ID=4286107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909504A Expired - Lifetime EP0348450B1 (en) 1987-12-22 1988-11-16 Presser foot in a sewing machine

Country Status (10)

Country Link
US (1) US5048437A (en)
EP (1) EP0348450B1 (en)
JP (1) JPH02502611A (en)
AU (1) AU617720B2 (en)
CA (1) CA1325924C (en)
CH (1) CH674656A5 (en)
DE (1) DE3881513T2 (en)
ES (1) ES2013383A6 (en)
WO (1) WO1989005880A1 (en)
ZA (1) ZA889520B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088092A (en) * 2014-07-22 2014-10-08 嘉兴莱天华服饰有限公司 Hemming device capable of performing hemming and foot pressing
JP6473625B2 (en) * 2015-01-26 2019-02-20 蛇の目ミシン工業株式会社 Sewing machine with replaceable presser foot
US20240060223A1 (en) * 2022-08-18 2024-02-22 Singer Sourcing Limited Llc Sewing machine ankle assemblies having a resilient member for attaching a presser foot

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US765884A (en) * 1901-09-09 1904-07-26 United Shirt & Collar Company Presser-foot mechanism for sewing-machines.
US1387142A (en) * 1920-02-04 1921-08-09 Flanagan James Alexander Combined presser-foot and work-guide for sewing-machines
US2241778A (en) * 1939-06-02 1941-05-13 Giancola Nicholas Presser foot and multiple gauge for sewing machines
US2545980A (en) * 1949-05-05 1951-03-20 Vanadia Frank Edge stitching presser foot for sewing machines
FR1240290A (en) * 1959-11-10 1960-09-02 Direct lighting device for sewing machine and others
US3143094A (en) * 1962-06-12 1964-08-04 Koshin Seimitsu Kikai Kabushik Pressure foot for sewing machine
US3203384A (en) * 1963-10-22 1965-08-31 Micale Angelo Combination finger guard and goods guide for sewing machines
US3800720A (en) * 1972-04-05 1974-04-02 Koshin Seimitsu Kikai Kk Pressure foot for sewing machines
US4165699A (en) * 1977-08-26 1979-08-28 Naoichi Nishi Presser foot for sewing machine
CH633335A5 (en) * 1979-11-14 1982-11-30 Jakob Jentschmann Thread cut-off device
GB2071713B (en) * 1980-03-17 1983-08-24 Mefina Sa Thread cutting device with thread retention
CH648883A5 (en) * 1980-08-26 1985-04-15 Gegauf Fritz Ag AUXILIARY DEVICE ON A SEWING MACHINE.
US4359955A (en) * 1981-07-16 1982-11-23 Koshin Seimitsu Kikai Kabushiki Kaisha Detachable presser foot
JPS6016375Y2 (en) * 1982-08-23 1985-05-21 晃信精密機械株式会社 Sewing machine presser foot connection device
JPS59194788A (en) * 1983-04-19 1984-11-05 晃信精密機械株式会社 Presser of sewing machine and production thereof
US4548145A (en) * 1984-07-27 1985-10-22 Kohshin Seimitsu Kikai Kabushiki Gaisha Holder for detachably mounting a presser foot
JPS6279093A (en) * 1985-10-03 1987-04-11 晃信精密機械株式会社 Production of metal presser of sewing machine
US4733622A (en) * 1987-02-24 1988-03-29 Ssmc Inc. Thread end holder for sewing machine with thread winding bobbin

Also Published As

Publication number Publication date
DE3881513T2 (en) 1994-02-03
AU2617788A (en) 1989-07-19
JPH02502611A (en) 1990-08-23
WO1989005880A1 (en) 1989-06-29
EP0348450A1 (en) 1990-01-03
US5048437A (en) 1991-09-17
CA1325924C (en) 1994-01-11
ZA889520B (en) 1989-08-30
DE3881513D1 (en) 1993-07-08
ES2013383A6 (en) 1990-05-01
AU617720B2 (en) 1991-12-05
CH674656A5 (en) 1990-06-29

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