EP0047225B1 - Accessoire de machine à coudre - Google Patents

Accessoire de machine à coudre Download PDF

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Publication number
EP0047225B1
EP0047225B1 EP81810207A EP81810207A EP0047225B1 EP 0047225 B1 EP0047225 B1 EP 0047225B1 EP 81810207 A EP81810207 A EP 81810207A EP 81810207 A EP81810207 A EP 81810207A EP 0047225 B1 EP0047225 B1 EP 0047225B1
Authority
EP
European Patent Office
Prior art keywords
presser foot
machine
sewing machine
place
wrong
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
Application number
EP81810207A
Other languages
German (de)
English (en)
Other versions
EP0047225A1 (fr
Inventor
Karl Nufer
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.)
Fritz Gegauf AG
Original Assignee
Fritz Gegauf AG
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 Fritz Gegauf AG filed Critical Fritz Gegauf AG
Publication of EP0047225A1 publication Critical patent/EP0047225A1/fr
Application granted granted Critical
Publication of EP0047225B1 publication Critical patent/EP0047225B1/fr
Expired 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
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2205/00—Interface between the operator and the machine
    • D05D2205/12—Machine to the operator; Alarms
    • D05D2205/16—Display arrangements

Definitions

  • the present invention relates to an auxiliary device on a sewing machine for securing against the attachment of a replaceable presser foot that is not assigned to a specific machine setting.
  • presser feet of a sewing machine are interchangeably attached to a shaft or directly to the presser bar of the machine.
  • These sewing feet are accessories that are required to carry out certain sewing work and are designed accordingly.
  • the number of associated sewing feet varies and it is often quite difficult to distinguish between the different feet.
  • Various arrangements have therefore become known to facilitate the differentiation, such as numbers, characters, color codes and the like.
  • no precautions are taken to alert them to the fact.
  • the sewing machine has first means which, when a presser foot is inserted, provide information corresponding to the presser foot used, second means which provide information corresponding to the machine setting and electronic means which are connected to the first and second means to compare the information coming from the first and second means and to determine whether the presser foot used corresponds to the machine setting, display means which are controlled by the electronic means and are attached to the sewing machine housing for indicating the insertion of a correct one or wrong presser foot are provided.
  • a needle bar 2 is movably mounted with the needle 3 in a conventional manner, and the presser foot bar 4 is located next to the needle bar.
  • the presser foot 5 is fastened to the presser foot bar 4 with its shaft 6 and a coupling part 7 and by means of a pivotable one Lever 8, the nose 9 engages under a cam 10 of the presser foot, secured to the coupling part 11 of the wet foot rod 4.
  • the lever 8 up By swiveling the lever 8 up, the presser foot can be unlocked and removed from the coupling part 11 of the presser foot rod 4 in order to subsequently attach another presser foot corresponding to a preselected machine setting.
  • the coupling part 7 of the presser foot has on one side a raised rib 12 which is provided with cams 13 at at least four specific points.
  • one of the cams 13 is arranged opposite a switch 14. As indicated in FIG. 3, these switches are normally open, but are closed when a cam 13 assigned to them actuates the switch when the presser foot coupling 7 is fully inserted into the presser foot rod coupling 11.
  • all positions are occupied by cams 13.
  • any combination of cams can be present, which allows a total of 16 different combinations. So 16 different sewing feet could be identified with individually assigned cam combinations. If 5 cam positions are provided, the number of possible combinations increases to 25, etc.
  • All switches 14 are connected to an electronic control circuit 15, for example a microprocessor.
  • the control circuit 15 can be supplied with coded information which corresponds to a specific setting of the sewing machine for a specific sewing work. By comparing this information in the control circuit 15 with the information provided by the switches 14, it can be determined whether the presser foot used corresponds to the setting of the sewing machine or the preselected sewing work or not.
  • a green indicator lamp 17 or a red indicator lamp is output via the control circuit 15 18, which are arranged on the sewing machine housing above the presser foot rod 4, are activated. The green lamp indicates that the correct presser foot is inserted, while the red lamp indicates that the wrong presser foot is inserted.
  • the operator can remove the wrong presser foot and choose the right one.
  • the operator is made aware that something does not match, ie the red warning lamp lights up whenever either a wrong presser foot is selected for the desired work program or if the machine has not been correctly set for this work program.
  • it can be corrected until the green lamp lights up, indicating that the selected program or setting matches the selected presser foot. Due to the usual arrangement of the red warning lamp above the green lamp, color-blind operators can correctly interpret the display.
  • the previously described auxiliary device can preferably be used on a sewing machine, which anyway has electronic means for displaying instructions for correct setting and equipping the sewing machine in accordance with a desired program or the conditions of a specific sewing work.
  • a sewing machine is described in the applicant's GB-A-2051152.
  • the symbols of the needle and the presser foot are attached above the needle bar 2 and above the presser foot rod 4 and these symbols are assigned display fields 19, 20 and 21, on which the numbers indicating the required needles or presser feet appear . These digits are also on the presser feet, which makes the selection of the right presser foot considerably easier.
  • the device described above is used to indicate errors that still occur and thus to avoid undesired sewing processes or damage to the needle or the presser foot.
  • sensors for example inductive, capacitive or piezoelectric transducers.
  • other sensors can be arranged on the coupling part 7 of the sewing foot, to which the sensors in the coupling part of the sewing foot rod 4 respond.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (6)

1. Dispositif auxiliaire de machine à coudre pour donner une sécurité contre l'installation d'un pied presseur (5) interchangeable ne correspondant pas à un réglage déterminé de la machine, caractérisé en ce que la machine comprend des premiers moyens (13, 14) qui, lors de la mise en place d'un pied presseur, délivrent une information correspondante au pied mis en place, des seconds movens (16) qui délivrent une information correspondante au réglage de la machine et des moyens électroniques (15) reliés aux premiers et seconds moyens pour comparer les informations provenant des premiers et seconds moyens et déterminer si le pied presseur mis en place correspond au réglage de la machine, des moyens d'affichage commandés par les moyens électroniques et installés sur le boîtier (1) de la machine à coudre étant prévus pour indiquer la mise en place d'un pied presseur correct ou incorrect.
2. Dispositif selon la revendication 1, caractérisé en ce que des moyens de blocage sont prévus pour empêcher la complète mise en place et/ou la fixation d'un pied presseur incorrect.
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que les premiers moyens comprennent des senseurs électriques, par exemple des interrupteurs (14), des transducteurs capacitifs, inductifs ou piezoélectriques qui sont installés à l'endroit de raccordement (7) du pied presseur (5) au bâti de la machine à coudre et des transmetteurs, par exemple des saillies (13) attribués aux senseurs (14) et disposés sur les pieds presseurs.
4. Dispositif selon la revendication 1, caractérisé en ce que les moyens électroniques sont un microprocesseur (15).
5. Dispositif selon la revendication 1, caractérisé en ce que des moyens de blocage de l'alimentation du moteur sont commandés par les moyens électroniques.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que des moyens de blocage de la machine à coudre lors de la mise en place d'un pied presseur incorrect (5) sont prévus.
EP81810207A 1980-08-26 1981-06-01 Accessoire de machine à coudre Expired EP0047225B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6409/80A CH648883A5 (de) 1980-08-26 1980-08-26 Hilfsvorrichtung an einer naehmaschine.
CH6409/80 1980-08-26

Publications (2)

Publication Number Publication Date
EP0047225A1 EP0047225A1 (fr) 1982-03-10
EP0047225B1 true EP0047225B1 (fr) 1984-01-11

Family

ID=4309127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810207A Expired EP0047225B1 (fr) 1980-08-26 1981-06-01 Accessoire de machine à coudre

Country Status (6)

Country Link
US (1) US4416208A (fr)
EP (1) EP0047225B1 (fr)
JP (1) JPS5755179A (fr)
AU (1) AU544470B2 (fr)
CH (1) CH648883A5 (fr)
DE (1) DE3161879D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014894A (ja) * 1983-07-06 1985-01-25 蛇の目ミシン工業株式会社 ミシンの布押え装置
JPS6462191A (en) * 1987-08-31 1989-03-08 Juki Kk Cloth setting device in fastner sewing machine
CH674656A5 (fr) * 1987-12-22 1990-06-29 Mefina Sa
US5119745A (en) * 1991-04-25 1992-06-09 Lynne Terry Sewing machine accessory for circular sewing
US5996517A (en) * 1997-09-30 1999-12-07 Brother Kogyo Kabushiki Kaisha Sewing apparatus having color display controlling device
JPH11104371A (ja) * 1997-09-30 1999-04-20 Brother Ind Ltd 縫製装置
JP6473625B2 (ja) * 2015-01-26 2019-02-20 蛇の目ミシン工業株式会社 押さえ交換可能なミシン

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH331811A (de) * 1954-06-12 1958-08-15 Anker Werke Ag Zickzacknähmaschine
CH369009A (de) * 1959-02-19 1963-04-30 Gegauf Fritz Ag Gelenknähfuss mit am Nähfussschaft pendelnd aufgehängter Nähfusssohle
US3926133A (en) * 1974-11-01 1975-12-16 Singer Co Sewing machine safety device
US4079683A (en) * 1975-08-01 1978-03-21 Janome Sewing Machine Co., Ltd. Indicating arrangement for use in sewing machines
US4233919A (en) * 1977-07-13 1980-11-18 Hitachi, Ltd. Sewing machine protection apparatus
US4117791A (en) * 1977-12-14 1978-10-03 The Singer Company Dual color coded sewing machine needles
JPS54110352U (fr) * 1978-01-18 1979-08-03
AU516167B2 (en) * 1978-01-26 1981-05-21 Janome Sewing Machine Co. Ltd. Sewing machine with needle dropping hole changing control system
US4166423A (en) * 1978-02-28 1979-09-04 The Singer Company Adaptive sewing machine
JPS54145362U (fr) * 1978-03-31 1979-10-09
JPS5931355B2 (ja) * 1978-06-15 1984-08-01 蛇の目ミシン工業株式会社 縫い判別と指令機能を有するミシンの検知装置
JPS55108386A (en) * 1979-02-10 1980-08-20 Brother Ind Ltd Abnormality alarm device of sewing machine
DE3068485D1 (en) * 1979-03-15 1984-08-16 Gegauf Fritz Ag Device for giving instructions for adjusting and fitting attachments to a sewing machine
GB2051152B (en) * 1980-05-28 1983-02-23 Gegauf Fritz Ag Sewing machines

Also Published As

Publication number Publication date
CH648883A5 (de) 1985-04-15
US4416208A (en) 1983-11-22
EP0047225A1 (fr) 1982-03-10
DE3161879D1 (en) 1984-02-16
JPS5755179A (en) 1982-04-01
AU544470B2 (en) 1985-05-30
AU7300581A (en) 1982-09-23

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