EP0933461B1 - Appareil auxiliaire pour machines à coudre pour couper l'ouvrage - Google Patents

Appareil auxiliaire pour machines à coudre pour couper l'ouvrage Download PDF

Info

Publication number
EP0933461B1
EP0933461B1 EP98890349A EP98890349A EP0933461B1 EP 0933461 B1 EP0933461 B1 EP 0933461B1 EP 98890349 A EP98890349 A EP 98890349A EP 98890349 A EP98890349 A EP 98890349A EP 0933461 B1 EP0933461 B1 EP 0933461B1
Authority
EP
European Patent Office
Prior art keywords
cutting
knife
sewing
feed
rotary knife
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
EP98890349A
Other languages
German (de)
English (en)
Other versions
EP0933461A3 (fr
EP0933461A2 (fr
Inventor
Johannes Sahl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0933461A2 publication Critical patent/EP0933461A2/fr
Publication of EP0933461A3 publication Critical patent/EP0933461A3/fr
Application granted granted Critical
Publication of EP0933461B1 publication Critical patent/EP0933461B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04—Cutting devices
    • D05B37/08—Cutting devices with rotatable tools

Definitions

  • the invention relates to an additional device for sewing machines Trimming the material with a knife and a counter knife Cutting tool that depends on the intermittent material feed drivable and aligned with its cutting plane parallel to the feed is, the cutting tool one by one Cutting plane normal axis of rotation drivable rotary knife (Siche document US-A-3 964 409).
  • the cutting tool may only be effective come when the sewing material due to the intermittent feed for the Puncture of the sewing needle is kept still, whereby Schoppungen u. The like Sewing material and related irregularities in the cut are prevented become.
  • the cutting tools have therefore consistently been made up to now Lifting knives that can be moved up and down normally to the feed direction standing counter knives work together and during a feed standstill their working stroke cutting the sewing material simultaneously with a needle stroke on the return stroke, however, the material for the gradual feed movement release.
  • these cutting tools are quite sluggish and limit the possible sewing speed, they are with a considerable Construction effort and space requirements and interfere with your assigned to the lower counter knife, protruding above the sewing table and stroke movable upper lifting knives the material guide.
  • the invention is therefore based on the object of an additional device to create the kind described above, which is characterized by its comparative simple, space-saving and high cutting speed Sewing speeds adjustable cutting tool distinguishes.
  • the invention solves this problem in that the cutting tool a rotary knife that is drivable to the cutting plane has at least one only over part of the knife circumference extending, deviating in its course from a circular arc around the axis of rotation Cutting edge forms and with a indirectly proportional to the material feed speed adjusted to the number of cutting edges.
  • the speed of the Rotation knife depending on the number of cutting edges available be influenced by the feed or the number of stitches of the sewing needle, the Speed decreases with increasing number of cutting edges.
  • the cutting edges themselves are preferably straight, but they could also run in an arc to to consider special cutting conditions, and also the counter knife can have different counter cutting edges adapted to the knife edges form as well as a fixed counter knife, but also as opposed to the rotary knife rotating counter knife can be provided. Because of the simple new one Cutting tool concept, it is easily possible, the fixed counter knife above and the rotary knife below the sewing table, so that disturbing obstacles for the sewing material in the sewing table area are avoided and the sewing material guidance remains unaffected. Also an inverted knife counter knife arrangement or a rotating counter knife brings because of lack of lifting movement hardly any difficulties with regard to the arrangement in the Feed area of the material with itself.
  • Rotary knife at least two arranged evenly distributed around the axis of rotation Has cutting.
  • wing or disc knives that Due to symmetry, do not lead to imbalance and the number of cutting edges per speed ensure a corresponding number of cuts, which ensures a trouble-free, low-vibration operation comes about.
  • the rotary knife has a square basic shape and four sides of the square cutting edges running along, are best in a rational way cutting conditions matched to a sewing process with regard to cutting edge guidance, Cutting length, cutting and opening cycles u. The like.
  • an additional device 4 one with its Cutting plane S cutting tool aligned parallel to feed opposite the sewing table 3 lower, about a normal to the cutting plane S axis of rotation D driven rotary knife 5 and an upper fixed counter knife 6 includes.
  • the rotary knife 5 has a square basic shape and forms four edges 7 corresponding to the square sides, which with the Counter cutting edge 8 of the counter knife 6 cooperate.
  • the rotary knife 5 stands over a knife shaft 9 with a gear 10 and only indicated a drive shaft of the sewing machine 1, not shown, in drive connection and its speed is indirectly proportional to the number of cutting edges adapted the intermittent material feed, so corresponds for example the fourth part of the cutting frequency of the feed and thus the fourth part the stitch frequency of the sewing needle.
  • the material is only ever in the standstill phase for the needle stitch between knife edge 7 and counter knife 8 held cutting while after each cut before taking effect the following cutting edge the material is released and the next one Feed step can be moved forward.
  • a low-cost and space-saving additional device is created 4, the cutting tool a reliable trimming of the Sewing material without impairing the guidance of the sewing material and with the best possible sewing speeds, adjustable cutting speed and perfect cutting conditions allowed.

Landscapes

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

Claims (3)

  1. Dispositif additionnel (4) pour des machines à coudre (1) pour le découpage du produit à coudre, avec un outil de découpage comprenant une lame (5) et une contre-lame (6), outil de découpage susceptible d'être entraíné en fonction de l'avancement intermittent du produit à coudre et dont le plan de découpage (S) est orienté parallèlement à l'avancement, l'outil de découpage présentant une lame rotative (5) susceptible d'être entraínée autour d'un axe de rotation (D) perpendiculaire au plan de découpage (S), caractérisé en ce que la lame de rotation forme au moins un tranchant (7) s'étendant seulement sur une partie de la circonférence de la lame, tranchant dont l'allure est différente d'un arc de cercle tracé autour de l'axe de rotation (D) et tournant à une vitesse de rotation adaptée à l'avancement du produit à coudre, de façon indirectement proportionnelle au nombre de tranchants.
  2. Dispositif additionnel selon la revendication 1, caractérisé en ce que la lame rotative (5) présente au moins deux tranchants (7) répartis régulièrement autour de l'axe de rotation (D).
  3. Dispositif additionnel selon la revendication 2, caractérisé en ce que la lame rotative (5) a une forme de base quadratique et présente quatre tranchants (7) s'étendant le long des côtés d'un carré.
EP98890349A 1998-02-02 1998-11-26 Appareil auxiliaire pour machines à coudre pour couper l'ouvrage Expired - Lifetime EP0933461B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT16498 1998-02-02
AT0016498A AT410106B (de) 1998-02-02 1998-02-02 Zusatzvorrichtung für nähmaschinen zum beschneiden des nähgutes

Publications (3)

Publication Number Publication Date
EP0933461A2 EP0933461A2 (fr) 1999-08-04
EP0933461A3 EP0933461A3 (fr) 2000-03-08
EP0933461B1 true EP0933461B1 (fr) 2002-11-06

Family

ID=3483272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98890349A Expired - Lifetime EP0933461B1 (fr) 1998-02-02 1998-11-26 Appareil auxiliaire pour machines à coudre pour couper l'ouvrage

Country Status (6)

Country Link
US (1) US6073566A (fr)
EP (1) EP0933461B1 (fr)
JP (1) JPH11267382A (fr)
AT (1) AT410106B (fr)
DE (1) DE59806181D1 (fr)
ES (1) ES2187000T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018722B3 (de) * 2005-04-21 2006-06-22 Nähmaschinenfabrik Emil Stutznäcker GmbH & Co KG Verfahren und Vorrichtung zum Nähen von großflächigem Nähgut
JP4467487B2 (ja) * 2005-08-01 2010-05-26 株式会社縫技研究所 ミシンの布端切断装置
DE102007022818A1 (de) * 2007-05-15 2008-11-20 Dürkopp Adler AG Nähmaschine
JP2010012289A (ja) * 2009-09-10 2010-01-21 Hogi Kenkyusho:Kk ミシンに取り付けられる布端切断装置
JP5359963B2 (ja) * 2010-03-31 2013-12-04 ブラザー工業株式会社 布接着装置
JP6686288B2 (ja) * 2015-03-31 2020-04-22 ブラザー工業株式会社 接着装置
CN105200679B (zh) * 2015-08-18 2017-12-08 常州数控技术研究所 一种控制带旋转刀头型花样机缝纫并切边的方法
CN107217402B (zh) * 2017-08-04 2023-01-31 浙江耐拓机电科技有限公司 一种缝纫机的切刀结构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US341726A (en) * 1886-05-11 Stockton
US1998111A (en) * 1934-02-13 1935-04-16 Metropolitan Sewing Machine Co Trimming mechanism for sewing machines
US2105184A (en) * 1935-02-28 1938-01-11 Robert H Goodhart Attachment for sewing machines
US2069113A (en) * 1935-08-17 1937-01-26 Sarah Spielman Pinking attachment for sewing machines
US2192292A (en) * 1938-09-20 1940-03-05 Sussman Samuel Cutting attachment for sewing machines
AT322954B (de) * 1973-06-28 1975-06-25 Triumph International Ag Trennvorrichtung für nähmaschinen
US3964409A (en) * 1973-10-12 1976-06-22 Pfaff Industriemaschinen Gmbh Device for sewing and cutting-open tucks on cut pieces of garments
US5197400A (en) * 1991-10-30 1993-03-30 Kansai Special Usa Corp. Trimming apparatus for use in making a hem
DE29605135U1 (de) * 1996-03-20 1996-06-13 Union Special GmbH, 71282 Hemmingen Nähmaschine mit einer Schneidvorrichtung

Also Published As

Publication number Publication date
EP0933461A3 (fr) 2000-03-08
AT410106B (de) 2003-02-25
ES2187000T3 (es) 2003-05-16
ATA16498A (de) 2002-06-15
JPH11267382A (ja) 1999-10-05
DE59806181D1 (de) 2002-12-12
US6073566A (en) 2000-06-13
EP0933461A2 (fr) 1999-08-04

Similar Documents

Publication Publication Date Title
DE10059978A1 (de) Sägewerkzeug für eine Handkreissägemaschine
DE2823245C2 (de) Schneidsatz für eine Vorrichtung zum Zerkleinern von Nahrungsmitteln
EP0933461B1 (fr) Appareil auxiliaire pour machines à coudre pour couper l'ouvrage
EP0294565A1 (fr) Procédé de fraisage des polygomes
DE2800568A1 (de) Haarschneidemaschine
DE19518483C2 (de) Werkzeugmaschine für die stirnseitige Bearbeitung von Zahnrädern
EP0293582B1 (fr) Machine à fraiser
DE3840325C2 (de) Aufteilsägemaschine
DE3825477C2 (de) Insbesondere als Handkreissäge ausgebildetes transportables Trenngerät
DE1905744A1 (de) Maschinensaege
CH631104A5 (de) Laengsschneideeinrichtung fuer bahnfoermiges material, insbesondere papier- und kartonbahnen.
DE4319326A1 (de) Verfahren und Vorrichtung zum Verzahnen und Abdachen von Zahnflanken
DE837300C (de) Vorrichtung zum Zerkleinern, Mischen und Umruehren von Nahrungs- und Genussmittelgut sowie Chemikalien
DE2718296C3 (fr)
DE69908734T2 (de) Apparat zum Schärfen von Schneidemesser
DE2908925C2 (de) Pelzschneidevorrichtung
DE3422101A1 (de) Saegeeinrichtung zum zuschneiden von profilleisten o.dgl.
DE865521C (de) Haushaltmaschine mit fluegelartigem Werkzeug zum Zerkleinern, Mischen, Ruehren, Verschaeumen, Koagulieren und Durchlueften von Nahrungs- und Genussmitteln
DE3909019C2 (fr)
DD241392A1 (de) Vorrichtung zum schneiden von lebensmitteln, insbesondere in scheiben
DE4028558A1 (de) Vorrichtung zum zerteilen einer vielzahl kleiner keramischer massestraenge in kurze strangabschnitte
DE165892C (fr)
DE7906315U1 (de) Pelzschneidevorrichtung
DE3917454C2 (fr)
DE2600402C3 (de) Vorrichtung zum Zerstückeln fortlaufenden, langgestreckten Materials

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE ES FR GB GR IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000824

AKX Designation fees paid

Free format text: CH DE ES FR GB GR IT LI

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20020517

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB GR IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59806181

Country of ref document: DE

Date of ref document: 20021212

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030304

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20030400438

Country of ref document: GR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2187000

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030807

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20031125

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20031126

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031128

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041116

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20041122

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051126

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041127

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051126

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101218

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59806181

Country of ref document: DE

Effective date: 20120601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601