EP0165380B1 - Nähmaschine - Google Patents

Nähmaschine Download PDF

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Publication number
EP0165380B1
EP0165380B1 EP85102773A EP85102773A EP0165380B1 EP 0165380 B1 EP0165380 B1 EP 0165380B1 EP 85102773 A EP85102773 A EP 85102773A EP 85102773 A EP85102773 A EP 85102773A EP 0165380 B1 EP0165380 B1 EP 0165380B1
Authority
EP
European Patent Office
Prior art keywords
sewing machine
rubber band
machine according
presser foot
brake
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
EP85102773A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0165380A1 (de
Inventor
Helmut Schips
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
Priority to AT85102773T priority Critical patent/ATE39504T1/de
Publication of EP0165380A1 publication Critical patent/EP0165380A1/de
Application granted granted Critical
Publication of EP0165380B1 publication Critical patent/EP0165380B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/06—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding
    • 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
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/05—Magnetic devices
    • D05D2207/06—Permanent magnets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00—Applied objects or articles
    • D05D2303/02—Tape
    • D05D2303/04—Tape elastic
    • 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
    • D05D2305/12—Cutting the workpiece transversally

Definitions

  • the invention relates to a sewing machine for sewing a rubber band to a tubular end portion of a garment made of elastic, textile material to form an endless, elastic waistband, with a presser foot pressing the material against a base and a feed dog for transporting the sewing material, one of the rubber band from the presser foot feeding feed device and a separator for the rubber band.
  • the necessary tension which is also required for sewing the end of the rubber band at the same edge, cannot be maintained either by means of a feed device which is arranged in the known sewing machine between the separating device and the feed device and by means of a working cylinder along the transport path for the rubber band has sliding feed fingers.
  • This feed finger which has the task of feeding the beginning of the rubber band to the presser foot, is lifted off the rubber band during the return stroke.
  • the separation point lies between the effective area of the feed finger and the presser foot, so that the presser foot could not maintain the tension of the separated end section of the rubber band even if it were constantly in contact with the rubber band.
  • the maintenance of the tension of the end section of the rubber band is also not possible by means of a guide device provided on the presser foot in the known sewing machine, which has the task of preventing wrinkling or rolling back of the rubber band during insertion, and for this purpose two spaced apart Has walls, one of which is formed by a hairpin feather.
  • the two walls must not have a clamping effect on the rubber band, since otherwise the beginning of the band could not be inserted between the two walls due to the lack of rigidity of the band.
  • the invention has for its object to provide a sewing machine for automatically sewing a rubber band to a tubular end portion of a garment made of elastic, textile material with the formation of an endless, elastic waistband, by means of which not only an exact, edging sewing of the rubber band is possible, but also sewing the end section under the same conditions as the other sections and joining the beginning and end of the rubber band to form an overlap or a joint.
  • This object is achieved by a sewing machine with the features of claim 1.
  • Such a brake enables controlled feeding of the rubber band even after it has been cut off and released from the feed device, i.e. the end section of the rubber band can also be held under the desired tension until the sewing process is complete and can be fed exactly to the presser foot. This ensures sewing with the same edge. In addition, it is not difficult to sew the beginning and end of the rubber band together with a selectable overlap or to form a butt joint.
  • the brake is designed as a friction brake according to claim 2, the required braking effect can be varied with the aid of the clamping force which the clamping bodies exert on the rubber band.
  • the clamping bodies of the friction brake which are preferably designed as plates, can be provided with corresponding guide elements.
  • the brake is advantageously arranged as close as possible to the presser foot.
  • the counter plate forming the clamping body of the brake, against which a pressure plate forming the other clamping body can be moved is formed by an extension of the presser foot on the fabric inlet side.
  • a pneumatic cylinder is provided as a drive for the pressure plate, both with a view to simple actuation of the preferably pivotally mounted pressure plate and with regard to a possibility of varying the force with which the pressure plate acts on the rubber band.
  • the feed device is advantageously formed by transport rollers which can be driven by means of a stepping motor.
  • a pair of scissors for severing the rubber band is advantageously arranged directly behind the transport rollers. Shortly before the rubber band is cut off at its end, it is caught by the brake.
  • a sensor according to claim 11 is preferably provided to control the scissors and the brake.
  • the sewing process itself can also be controlled by the signal from the sensor, which is preferably a light barrier, ie the sewing process is opened the signal from the sensor continues for a preselectable number of stitches, after which the rubber band is sewn on completely in the desired position and sewn with its beginning. The sewing process is then ended automatically.
  • the presser foot is extended towards the infeed direction of the fabric in order to ensure reliable gripping of the infeed beginning of the elastic band that has already been sewn on.
  • a knife running in the sewing direction is preferably arranged between the point at which the sensor is arranged and the point at which the rubber band is sewn onto the fabric.
  • This knife can be raised above the stitch plate of the sewing machine and trims the edge of the fabric before sewing on the rubber band, so that there is a clean fabric edge of the garment on the inside of the rubber band. If the beginning of the elastic band that has already been sewn on is determined by the scanning, the knife is lowered under the throat plate after a predetermined transport distance of the fabric, so that the beginning of the elastic band that has already been sewn on is not cut by this knife.
  • the sewing machine has a sewing machine table with an inserted stitch plate 10.
  • a feed dog 12 extends through the needle plate 10 from below.
  • a presser foot 14 is located above the needle plate 10 and can be raised and lowered by means of a presser foot rod 16. The needle 18 of the sewing machine pierces through the presser foot 14.
  • a pair of feed rollers 20 are provided on the sewing machine, which are driven by an electric stepping motor, not shown.
  • the rubber band 22, which forms the rubber band to be sewn, is fed between the transport rollers 20.
  • the rubber band 22 is drawn off from a supply roll by the transport rollers 20 and advanced to the sewing tools.
  • a controlled driven scissors 24 is arranged for severing the rubber band 22 passing through. Following the scissors 24, the rubber band 22 runs under an upwardly bent beak 26 of the presser foot 14.
  • a pressure plate 28 is attached to the beak 26 so as to be pivotable about an axis arranged transversely to the direction of advance of the rubber band 22.
  • the piston rod of a pneumatic cylinder unit 30 acts on a swivel lever connected to the pressure plate 28.
  • the rubber band 22 runs between the bent beak 26 of the presser foot 14 and the pressure plate 28.
  • the pressure plate 28 can be pivoted against the beak 26 by means of the pneumatic unit 30, whereby it presses the continuous rubber band 22 against the beak 26, so that the rubber band 22 runs through and is braked only by friction between the beak 26 and the pressure plate 28 and is not shown lateral guide elements, for example raised side edges, are guided in parallel.
  • An additional foot 32 is arranged in the sewing direction in front of the presser foot 14.
  • the additional foot 32 is attached to an arm of a two-armed lever 34 which is pivotally mounted on a block 36 of the presser foot 14.
  • a tension spring 38 acts on the other arm of the two-armed lever 34, so that the additional foot 32 is pressed against the needle plate 10.
  • the transporter 12 is extended at least with one of its toothed strips beyond the pressure foot 10 to the additional foot 32.
  • a guide 40 which can be screwed onto the throat plate 10 serves to reliably guide the incoming fabric 42 of the garment under the additional foot 32.
  • the transmitter and / or receiver of a light barrier 44 is arranged in the throat plate 10, which, as shown in FIG. 2, is aligned with the path of the rubber band 22 already sewn onto the fabric 42.
  • a knife (not shown) is provided in the needle plate 10 in the sewing direction between the light barrier 44 and the needle 18. The knife runs in the sewing direction and can be lowered under the needle plate 10 in a controlled manner.
  • the stepper motor driving the transport rollers 20 is synchronized with the drive of the sewing tools. Both the drive of the sewing machine and the stepper motor driving the transport rollers 20 as well as the pneumatic actuations of the scissors 24, the pneumatic unit 30 and the lowering of the knife can be controlled by the signal of the light barrier 44.
  • the sewing machine works in the following way:
  • the edge of the tubular garment, to which the elastic band is to be sewn, is placed in the sewing machine under the presser foot 14. Then the work cycle is started. The knife is raised above the needle plate 10, the feed dog 12 is started, the feed rollers 20 for feeding the rubber band 22 are driven and the pressure plate 28 is pivoted away from the beak 26 of the presser foot.
  • the fabric 42 of the garment is now advanced in the direction of the arrow by the transporter 12, its edge being cut straight in the sewing direction by the raised knife.
  • the sewing process is started.
  • the elastic band 22 is sewn onto the edge of the fabric 24.
  • the drive of the transport rollers 20 by the stepper motor is synchronized with the feed movement of the feed dog 12 and the stepper motor is controlled in such a way that the rubber band 22 also at a slightly lower speed than the fabric 42 is advanced.
  • the transport rollers 20 therefore hold the rubber band under a certain tension when it enters the presser foot 14.
  • the sewing process is continued until the elastic band 22 is sewn on almost the entire circumference of the garment.
  • the light barrier 44 which is located outside the edge of the fabric 42 and was previously free, is now interrupted by the start of the sewn-on rubber band 22 and gives a signal to the control of the sewing machine.
  • the knife (not shown) is lowered under the throat plate 10 so that it does not cut through the rubber band 22 that has already been sewn on.
  • This preselectable period of time corresponds to a preselected feed path of the rubber band 22, so that the length of the end of the rubber band 22 can be preselected, which is still sewn on after the start edge of the sewn rubber band has reached the light barrier 44. It can thus be selected whether the beginning and the end of the rubber band are butted together or with a preselectable overlap length.
  • the sewing process is ended. This number of stitches is selected so that the elastic is completely sewn over.
  • a thread cutter is actuated in a conventional manner and the presser foot is raised so that the garment with the fully sewn-on elastic band can be removed from the sewing machine.
EP85102773A 1984-03-20 1985-03-12 Nähmaschine Expired EP0165380B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102773T ATE39504T1 (de) 1984-03-20 1985-03-12 Naehmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3410181A DE3410181C2 (de) 1984-03-20 1984-03-20 Nähmaschine
DE3410181 1984-03-20

Publications (2)

Publication Number Publication Date
EP0165380A1 EP0165380A1 (de) 1985-12-27
EP0165380B1 true EP0165380B1 (de) 1988-12-28

Family

ID=6231057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102773A Expired EP0165380B1 (de) 1984-03-20 1985-03-12 Nähmaschine

Country Status (5)

Country Link
US (1) US4635575A (zh)
EP (1) EP0165380B1 (zh)
JP (1) JPS60222084A (zh)
AT (1) ATE39504T1 (zh)
DE (1) DE3410181C2 (zh)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425939A1 (de) * 1983-12-30 1985-07-11 Ram Elettronica di Badlagis Luca & C.S.n.c., Modena Spannungseinsteller fuer elastikband und aehnliches, besonders fuer maschinen zum aufnaehen von band auf stoff
DE3603506C1 (de) * 1986-02-05 1987-07-30 Union Special Gmbh Stoffdrueckerfusseinrichtung
DE3628829C1 (de) * 1986-08-25 1988-02-11 Pantelis Bozoglou Naehmaschine zum Annaehen eines Gummibandes
DE3706996C1 (de) * 1986-10-22 1988-07-21 Union Speical Gmbh Abschneidvorrichtung an einer Naehmaschine
DE3635844C1 (en) * 1986-10-22 1988-03-24 Union Special Gmbh Cut-off device on a sewing machine
JPS6391274U (zh) * 1986-12-02 1988-06-13
DE3642863A1 (de) * 1986-12-16 1988-06-30 Daimler Benz Ag Zusatzeinrichtung fuer naehmaschinen
US4703706A (en) * 1987-02-17 1987-11-03 Denis Plante Elastic band feeding and tensioning mechanism for a sewing machine
GB2201432B (en) * 1987-02-26 1991-06-05 Automatic Braiding Ltd Feeding device for a sewing machine
DE3716148C1 (de) * 1987-05-14 1988-12-15 Union Special Gmbh Bandzufuehreinrichtung an einer Naehmaschine
IT1231885B (it) * 1987-10-09 1992-01-15 Rockwell Rimoldi Spa Macchina per cucire polifunzionale.
DE3743281A1 (de) * 1987-12-19 1989-07-06 Union Special Gmbh Naehmaschine zum annaehen eines bandes
DE8817169U1 (de) * 1988-07-15 1993-11-04 Schips Ag Naehautomation Tueba Etikettenspender
WO1990007603A1 (en) * 1988-12-27 1990-07-12 Juki Corporation Sewing machine for rubber tape
DE3902333A1 (de) * 1989-01-27 1990-08-09 Union Special Gmbh Verfahren zum erkennen einer lageposition eines naehgutes an einer gesteuert angetriebenen naehmaschine und vorrichtung zur durchfuehrung des verfahrens
DE3902932A1 (de) * 1989-02-01 1990-10-11 Opti Patent Forschung Fab Vorrichtung zum einnaehen eines gekuppelten reissverschlussabschnittes mit teilbarkeitseinrichtung
JPH02112492U (zh) * 1989-02-27 1990-09-07
JPH04357995A (ja) * 1990-08-03 1992-12-10 Robert William Arthur Dagg 被服に弾性材料を取り付ける改良された方法および装置
JPH0523468A (ja) * 1991-07-25 1993-02-02 Pegasus Sewing Mach Mfg Co Ltd ミシンのテープ縫付け方法及び装置
US5394813A (en) * 1993-10-12 1995-03-07 Pegasus Sewing Machine Mfg. Co., Ltd. Apparatus for sewing an elastic tape on an edge of a workpiece
US5566633A (en) * 1993-12-28 1996-10-22 G&G Sewing Machine Company, Inc. Sewing machine with tape feed and pneumatic devices for clamping workpieces
ATE214112T1 (de) * 1996-08-22 2002-03-15 Naehtechnik Sahl Ges M B H Vorrichtung zum zuführen eines gummibandes od. dgl. in den nähbereich einer nähmaschine
JP3906375B2 (ja) * 2002-05-09 2007-04-18 ヤマトミシン製造株式会社 縫製装置の制御装置
AT501016B1 (de) * 2003-12-04 2008-02-15 Sahl Johannes Nähmaschine zum annähen eines gummielastischen bandes an einem nähgut
JP2006212543A (ja) * 2005-02-03 2006-08-17 Zojirushi Corp 除湿機
US8789480B2 (en) * 2005-05-16 2014-07-29 Symbiotic Technology, Llc Energy and steel recovery system
JP5212935B2 (ja) * 2008-02-22 2013-06-19 ヤマトミシン製造株式会社 帯状物の縫着方法
CN108796840A (zh) * 2018-06-25 2018-11-13 安徽水都信息技术有限公司 一种裤料拉腰压线用的送料辊子组件
CN109537176A (zh) * 2018-11-08 2019-03-29 苏州澳拓美盛自动化设备有限公司 自动上料皮带机
CN114657715A (zh) * 2022-03-10 2022-06-24 山东魏桥嘉嘉家纺有限公司 一种缉压外露橡筋控制装置

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US1586163A (en) * 1916-04-19 1926-05-25 R M Sharaf Machine Co Variable-width presser-foot mechanism
DE675241C (de) * 1933-03-02 1939-05-09 Mauser Werke Akt Ges Faltvorrichtung mit Gummibandfuehrung fuer Naehmaschinen
US2153244A (en) * 1936-09-14 1939-04-04 Galkin Joseph Elastic tape attaching mechanism
US2329991A (en) * 1940-05-23 1943-09-21 Crown Fastener Corp Apparatus for attaching separable fasteners
US3721203A (en) * 1971-09-17 1973-03-20 Bacon C Co Apparatus for measuring elastic fed to a sewing machine
US3847099A (en) * 1972-08-18 1974-11-12 Pfaff Ind Masch Ribbon feeding attachment for sewing machines
IT983984B (it) * 1973-04-19 1974-11-11 Italo Americana Prentice Spa Dispositivo applicabile su macchi ne da cucire di tipo industriale a bancale piano ad aghi multipli per la cucitura di una chiusura lampo in catena continua su capi confezionati per il taglio della spezzone di chiusura cucito e per l esecuzione mediante fusio ne dei dentini in materiale sin tetico del terminale basso
FR2242877A5 (en) * 1973-08-28 1975-03-28 Triumph International Ag Sewing machine cutting blade setting - with sensors to monitor edges of workpiece fabric
US3964410A (en) * 1975-01-24 1976-06-22 Boser Ronald J Elastic inserter for a sewing machine
US4020776A (en) * 1975-09-05 1977-05-03 Haff Jr Frederick Feeding and cutting attachment for sewing machines
US4024824A (en) * 1975-09-05 1977-05-24 Haff Jr Frederick Sewing machine feeding and cutting attachment for elastic stripping
IT1043088B (it) * 1975-10-03 1980-02-20 Rockwell Rimoldi Spa Dispositivo per tagliare ed inse rire una striscia sotto il piedi no pressore di una macchina per cucire
DE2828984C2 (de) * 1977-07-09 1981-09-10 Werner 5870 Hemer Arndt Nähanlage zum überlappenden Annähen einer elastischen Blende an der Kante einer Ware
JPS54111946A (en) * 1978-02-20 1979-09-01 Yoshida Kogyo Kk Guide for sewing slide fastener chain

Also Published As

Publication number Publication date
US4635575A (en) 1987-01-13
ATE39504T1 (de) 1989-01-15
JPS6360679B2 (zh) 1988-11-25
DE3410181C2 (de) 1986-07-17
DE3410181A1 (de) 1985-10-03
EP0165380A1 (de) 1985-12-27
JPS60222084A (ja) 1985-11-06

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