US3383107A - Device for withdrawing sewn material from sewing machines - Google Patents

Device for withdrawing sewn material from sewing machines Download PDF

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Publication number
US3383107A
US3383107A US576375A US57637566A US3383107A US 3383107 A US3383107 A US 3383107A US 576375 A US576375 A US 576375A US 57637566 A US57637566 A US 57637566A US 3383107 A US3383107 A US 3383107A
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United States
Prior art keywords
guide
withdrawing
secured
carriage
sleeve
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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
US576375A
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English (en)
Inventor
Hedegaard Kristen
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.)
GM Pfaff AG
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GM Pfaff AG
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Filing date
Publication date
Application filed by GM Pfaff AG filed Critical GM Pfaff AG
Application granted granted Critical
Publication of US3383107A publication Critical patent/US3383107A/en
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • D05B33/02—Devices incorporated in sewing machines for supplying or removing the work and connected, for synchronous operation, with the work-feeding devices of the sewing machine
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • A41H43/02—Handling garment parts or blanks, e.g. feeding, piling, separating or reversing
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B41/00—Work-collecting devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2209/00—Use of special materials
    • D05D2209/04—Use of special materials with high friction

Definitions

  • a device for withdrawing sewn material from a sewing machine which comprises a sleeve supporting a sliding bar having a guide finger for the sewn blanks that is angularly and axially movable on a carriage which is reciprocally movable in a plane by an endless conveyor under the control of a motor having a switch acted on by a cam on the carriage and also by contacts. associated with the presser foot of the sewing machine.
  • the present invention relates to sewing machines and is particularly concerned with a device for withdrawing finished sewn material from the sewing machine work table by means of a catcher or guide that engages the material.
  • the problem posed by this object is solved in that the guide mounted on an endless conveyor moved by way of pulleys is adapted to be seated on the sewn material and rotatable during the withdrawing of the material about an axis which is generally perpendicular with respect to the material supporting 4:, surface.
  • the guide is secured to one end of a sliding bar that is journalled in a sleeve which is axially slidable r in the bore of a sliding carriage that is movable on sliding tracks and connected with the endless conveyer, and which sleeve carries a lever at its upper end which under the biasing action of a spring during the withdrawal of the sewn material engages a slide rail in its path of operation which effects the rotation of the sliding bar.
  • the sliding bar is biased by the spring during return of the guide with an abutment secured to the sliding bar against a counter abutment which limits the rotational movement thereof.
  • FIG. 1 is a perspective view of the device with the guide seated on the sewn material and where a part of a sewing machine is indicated;
  • FIGS. 2 to 4 are top views of a sewing table with blanks of different circumferential shapes and differently extend ing seams in the position in which they leave the stitch forming location on the sewing machine and in the position in which they are stacked after being aligned;
  • FIG. 5 is a section taken transversely with respect to the guide carriage.
  • the carrier 3 of the device is pivotally mounted on a supporting arm 2 that can be fastened to the sewing table but is secured by a braking means (not shown) in the position illustrated against unintentional changing of its position.
  • a motor 4 with a drive wheel 5 is mounted on the carrier 3.
  • two guide bars 6, 7 for a sliding carriage 8 are secured and extend parallel to one another and are held together by a connecting member 9 arranged at a distance from the carrier 3, and having bores in alignment with the bores in said carrier, thus forming a guiding frame.
  • a bar 10 is secured to the connecting member 9 on which a reversing pulley 11 is rotatably journalled.
  • a round belt 12 is arranged around the drive wheel or pulley 5 and the reversing pulley 11, the outwardly bent ends of which are connected by means of a belt joint or lock 13.
  • the belt joint or lock 13 has a lateral carrier stud 14 which extends into a bore of a bifurcated member 15.
  • the bifurcated member 15 is secured on a sleeve 16 that is slidably journalled in the sliding carriage 8 for axial displacement and, together with a sleeve guide or pin 17 that is secured to the sliding carriage 8 and received in the jaws or aperture of the bifurcated member or guided member 15, serves to prevent sleeve 16 from rotating.
  • a sliding bar 18 is mounted for rotation and axial displacement and carries at its lower end which extends from the sleeve 16 a guide or mover 19 for the sewn material, the bottom end of which is covered with an elastic material,
  • a double-armed crank 20 is secured
  • a fecler or scanning lever 21 is secured to one arm of the crank 20, the downwardly bent end of which cooperates, when the guide finger 19 is placed upon the work blank, with a guide rail 22 secured to the carrier 3, which rail is arranged in the range of movement of the bent end.
  • the forward end of the guide rail 22 is bent at an angle of approximately
  • the other arm of the crank defines an abutment 23 and for limiting the rotary movement of the slide bar 13 cooperates with a counter abutment 24 which is adjustable or settable in an arcuately shaped longitudinal slot 25 of a slide bar guide 26 secured to the upper end of the sleeve 16.
  • a torsion spring 27 that is sup ported at one end on the slide bar guide 26 and at the other end against the feeler 21, the sliding bar 18 is turned in a manner that with the guide finger 19 lifted from the work blank 33, i.e., during the return of the sliding carriage 8, the abutment 23 engages the counter abutment 24.
  • a slide bar guide spring 28 arranged upon the sliding bar 18 between the crank and the upper surface of the slide bar guide 26 presses the sliding bar 13 downwardly against the sewing table 1.
  • a cam 29 is secured to the sliding carriage 8 which cooperates with the roller 3% of the shifting lever 31 of a normally closed end switch 32 for disconnecting the motor 4.
  • Switch 32 is secured to the bar 10 and each time after a complete rotation of the mover 19, and after the withdrawing of a work blank 33, 34 or from the sewing table 1 behind the stitch forming location, to a stack container 36 provided behind the rear edge of the sewing table which is adapted to the shape of the work blank and secured to the sewing table or a slide, and after return of the sliding carriage 8 to its initial position the cam 29 actuates the switch lever 31 of the end switch 32 by way of the roller 30, and switch 32 thus interrupts the current supply to the motor 4.
  • the device for withdrawing the scwn material from sewing machines is arranged, as seen in the direction of feeding, behind the partly illustrated sewing machine 37 which has the usual presser foot 38 and the thread guiding needle secured to the reciprocably movable needle bar 39 and which needle cooperates in a known manner with the looper (not shown) for producing seams.
  • the device operates as follows:
  • the work blanks 33, 34, 35 shown by way of example in FIGS. 2 to 4, leave the stitch forming position always in the direction in which the seam extends, in the position illustrated in the lower part of the drawing.
  • the motor 4 is actuated by way of a switch (not illustrated) so that the motor 4 moves the drive pulley 5 and thus by way of the cord belt 12 the belt joint or lock 13 secured to the outside of the cord belt 12 and the bifurcated member 15 securely connected with the sleeve 16 moves the sliding carriage 8 together with the components mounted on the carriage.
  • the sleeve 16 which is joined to the round or cord belt 12 with the sliding rod 18 journalled therein, which in turn supports the guide finger 19, is forced to move downwardly as the belt joint 13 rolls over the return pulley 11, so that the guide finger 19 secured to the sliding rod 18, moving against the etfect of the spring 28 onto the work blank 33 or 34, is seated approximately at the center of gravity of its plane.
  • the end of the scanning lever 21 which is bent downwardly is moved at the same time into the range of the guide rail 22.
  • the cam 29 releases the switch lever 31 of the end switch 32, thereby closing the contacts of said switch so that the tit) motor 4 can continue to run also when the presser foot 38 is lowered again immediately after being raised from the Work blank and after a new work blank has been inserted, whereby as aforementioned, the motor 4 is actuated by means of a switch that is not illustrated.
  • the downwardly bent end of the scanning lever 21 rests against the guide rail 22.
  • the sliding rod 18 with the guide finger 19 and thus also the work blank 33 or 34 is turned against the effect of the spring 27 about the longitudinal axis of the sliding rod 18 as axis of rotation and thus is straightened out as to form and position, and that preferably in such a manner that the longitudinal axes of the work blanks extend parallel to the rear edge of the sewing table.
  • abutment 24 in the arcuate slot 25 it is possible to continually adjust the rotary movement to the form and to the direction of the seam of the difierent work blanks within a predetermined angular range which in the embodiment illustrated is between zero and a rotation of about
  • the work blank 33 or 34 is moved at a predetermined velocity over the rear edge of the sewing table 1 and due to its weight drops into the stack container 36 that is arranged behind the sewing table and adapted to con-- form to the shape of the work blank.
  • Device for withdrawing the sewn material from a sewing machine comprising guide bar means, movable carriage means slidably supported on said guide bar means, means including a motor and an endless conveyor for imparting movement to said carriage means, a sleeve slidably journalled on said carriage and supporting a sliding bar having a guide finger at its lower end operative to contact the sewn material on the sewing machine during withdrawal, guide means for imparting angular and axial movement to said sliding bar and said finger supported on said bar, a sleeve guide on said carriage, a guided member secured to said sleeve having guiding engagement with said sleeve guide, said conveyor having a belt joint adjacent said guided member and a stud extending between said belt joint and said guided member, said belt joint, said stud, said guided member and said sleeve being movable with said conveyor along the conveyor path and simultaneously imparting reciprocating movement to said carriage, and supporting arm means supporting said carriage means, said guide means, said motor and said conveyor adjacent a sewing machine.
  • said guide means include a scanning lever at the upper end of said sliding bar, a guide rail extending proximate the path of travel of said scanning lever, and a spring biasing said lever against said guide rail during movement of said carriage for turning said bar and finger and thereby a work blank.
  • Device in accordance with claim 2 including a slide bar guide at the upper end of said sleeve, an abutment member supporting said scanning lever on said sliding bar, a counter abutment on said slide bar guide for engagement by said abutment member upon return of said lever under the bias of said spring, an arcuate slot in said slide bar guide for supporting said counter abutment in dilferent positions and a slide bar biasing spring intermediate said slide bar guide and said abutment member.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US576375A 1965-10-25 1966-08-31 Device for withdrawing sewn material from sewing machines Expired - Lifetime US3383107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0037952 1965-10-25

Publications (1)

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US3383107A true US3383107A (en) 1968-05-14

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ID=7375598

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Application Number Title Priority Date Filing Date
US576375A Expired - Lifetime US3383107A (en) 1965-10-25 1966-08-31 Device for withdrawing sewn material from sewing machines

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US (1) US3383107A (de)
DE (1) DE1485279B1 (de)
GB (1) GB1096963A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474747A (en) * 1967-08-24 1969-10-28 Ivanhoe Research Corp Apparatus for manipulating a workpiece along an irregular contoured path through a workstation
US3633526A (en) * 1969-02-28 1972-01-11 Tech Des Ind De L Habillement Automatic sewing machine installation
US3670674A (en) * 1970-04-30 1972-06-20 Kellwood Co Automatic feeder for workpieces of fabric or the like
US3696766A (en) * 1969-02-24 1972-10-10 Wtz Fur Bekleidungstechnik Veb Method of and apparatus for folding, sewing and conveying sheet materials
US3712254A (en) * 1970-04-28 1973-01-23 B Beamish Apparatus and method for edge stitching/binding workpieces
US3907277A (en) * 1974-08-26 1975-09-23 Xerox Corp Method and device for removing documents from a platen
EP0125945A1 (de) * 1983-05-04 1984-11-21 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Verfahren und Vorrichtung zum Transferieren und Positionieren von Werkstücken
FR2555209A1 (fr) * 1983-11-23 1985-05-24 Normande Confection Dispositif pour l'evacuation selective de pieces de vetement sur une machine a coudre
US5238237A (en) * 1988-10-04 1993-08-24 Cegelec Projects Limited Sheet handling apparatus
US5758590A (en) * 1996-02-22 1998-06-02 Collier; Horace I. Stacking device for sheet material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8823267D0 (en) * 1988-10-04 1988-11-09 Courtaulds Plc Robot end effector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170423A (en) * 1961-04-24 1965-02-23 Ernest M Junkins Automatic guiding apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909871A (en) * 1928-09-20 1933-05-16 Ruppel Sigwart Compressed gas switch
US3123031A (en) * 1961-08-24 1964-03-03 Work stacking mechanism for sewing machines
DE1909871U (de) * 1964-07-04 1965-02-11 Duerkoppwerke Ag Pneumatische arbeitsstueck - vorschubvorrichtung.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170423A (en) * 1961-04-24 1965-02-23 Ernest M Junkins Automatic guiding apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474747A (en) * 1967-08-24 1969-10-28 Ivanhoe Research Corp Apparatus for manipulating a workpiece along an irregular contoured path through a workstation
US3696766A (en) * 1969-02-24 1972-10-10 Wtz Fur Bekleidungstechnik Veb Method of and apparatus for folding, sewing and conveying sheet materials
US3633526A (en) * 1969-02-28 1972-01-11 Tech Des Ind De L Habillement Automatic sewing machine installation
US3712254A (en) * 1970-04-28 1973-01-23 B Beamish Apparatus and method for edge stitching/binding workpieces
US3670674A (en) * 1970-04-30 1972-06-20 Kellwood Co Automatic feeder for workpieces of fabric or the like
US3907277A (en) * 1974-08-26 1975-09-23 Xerox Corp Method and device for removing documents from a platen
EP0125945A1 (de) * 1983-05-04 1984-11-21 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Verfahren und Vorrichtung zum Transferieren und Positionieren von Werkstücken
US4679785A (en) * 1983-05-04 1987-07-14 Institut Textile De France Process and installation for transfer and positioning
FR2555209A1 (fr) * 1983-11-23 1985-05-24 Normande Confection Dispositif pour l'evacuation selective de pieces de vetement sur une machine a coudre
US5238237A (en) * 1988-10-04 1993-08-24 Cegelec Projects Limited Sheet handling apparatus
US5758590A (en) * 1996-02-22 1998-06-02 Collier; Horace I. Stacking device for sheet material

Also Published As

Publication number Publication date
GB1096963A (en) 1967-12-29
DE1485279B1 (de) 1969-10-02

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