US3783805A - Device for turning-in the border of pieces made of flexible sheets - Google Patents

Device for turning-in the border of pieces made of flexible sheets Download PDF

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Publication number
US3783805A
US3783805A US00215787A US3783805DA US3783805A US 3783805 A US3783805 A US 3783805A US 00215787 A US00215787 A US 00215787A US 3783805D A US3783805D A US 3783805DA US 3783805 A US3783805 A US 3783805A
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Prior art keywords
turning
sheet
stop
border
rollers
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US00215787A
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English (en)
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J Guichard
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CENTRE D ETUDES TECHNIQUES DES IND de l HABILLEMENT FR
TECH DES IND de l HABILLEMENT
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TECH DES IND de l HABILLEMENT
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers

Definitions

  • ABSTRACT Device for turning-in the border of pieces made of flexible sheets comprising means for supporting the piece in such a way that its marginal portion that is to be turned-in finds itself, at least partially, in a predetermined reference plane a lateral guide for positioning the border of the said marginal portion means for causing the border of the marginal piece portion which finds itself in the said reference plane to advance longitudinally, against the said lateral positioning guide a stop whose position, in relation to the lateral guide, determines the width of the turning-in that is to be formed a turning mobile member ensuring the formation of the turning-in in cooperation with the said stop control means for the turning-in member and means for introducing the turned-in marginal portion of the piece into the entry of the machine for fixing the turning-in.
  • PATENTEB 974 Sum 1 or 5 PATENTED JAN 8 4 sum 3 or 5 rial.
  • the invention relates to the turning-in of the border of pieces made of flexible sheets, for example of woven fabric, or stitch fabric, or non-woven fabric, made of all fibres, natural, synthetic or artificial, or else made of sheets of plastics material or any other flexible mate-
  • the turning, once formed, is then fixed by any suitable means such as sewing, gluing or welding for example.
  • the aim of the invention is to provide an automatic device in which the turning-in is formed and is fixed automatically, in a regular manner without the seamstress having to intervene, except possibly for putting the piece in place in the device and removing it therefrom once turned-in, in the event of the feeding and the re moval of the piece not themselves being effected in an automatic manner.
  • the tuning-in device in accordance with the invention is characterized in that it comprises means for supporting the piece in such a way that its marginal portion that is to be turned-in finds itself, at least partially, in a predetermined reference plane a lateral guide for positioning the border of the said marginal portion means for causing the border of the marginal piece portion which finds itself in the said reference plane to advance longitudinally, against the said lateral positioning guide a stop whose position, in relation to the lateral guide, determines the width of the turning-in that is to be formed a turning mobile member ensuring the formation of the turning-in in cooperation with the said stop control means for the turning-in member and means for introducing the turned-in marginal portion of the piece into the entry of the machine for fixing the turning-in.
  • FIGS. 1 and 2 are two perspective views of the turning-in device observed from one and the same side, but at different angles
  • FIG. 3 shows, on a larger scale, the control system for feeding the piece into the position where it can be seen in FIG. 1
  • FIG. 4 shows, in perspective, the device from the other side thereof
  • FIGS. 5 to 8 show four successive phases of formation of the turning-in
  • FIG. 9 shows the position of the turning-in members alone, at the end of the formation of a turning-in, the piece being assumed to be removed.
  • the device shown practically in its entirety in FIGS. 1 and 2 is intended to turn-in the marginal portion 2 (FIG. 8) of the bottom of a skirt 1. It is intended to work in combination with a machine for fixing the turning-in constituted, in this example, by a sewing machine 4 having a curved needle and fixed presser-foot 5 against which the piece that is to be stitched is applied by a slight raising movement of the piece-carrying tubular member 6 of, the said sewing machine.
  • the main members of the turning-in device comprise support means for the piece that is to be turned-in constituted by three rollers, namely a feed roller 11, a supporting roller 12 and a stretching roller 13, a lateral guide 14 for positioning the border of the skirt, a turning-in member 15 (FIG. 4), a stop 16 for determining the width of the turning-in, as well as various control and driving mechanisms and members.
  • the whole of the three rollers 11, 12, 13 is supported by a frame 18 (FIG. 4) secured to the frame of the sewing machine 4.
  • the feed roller 11 and the supporting roller 12 are mounted for rotation on the corresponding ends of the said double arms 21, 22.
  • the stretching roller 13 is supported by the lower ends of two other arms 26, 27 whose upper ends can pivot on the axis of the feed roller 11.
  • the two arms 26, 27 are connected, in the vicinity of their upper ends, by a cross-piece 25 and, in the vicinity of their lower ends, by a cross-piece 28.
  • a bow 34 constituted by a wire, connects the outer ends of the double arm 22 in order that the skirt be supported more efficiently in the course of turning-in.
  • the arrangement of the two upper rollers 11 and 12 which support the piece that is to be turned-in is such that the upper plane tangent to these two rollers is at observed the same time substantially tangent to the top face of the tubular member 6 which supports the piece that is to be stitched in the sewing machine 4.
  • the upper feed roller 11 is connected to a motor 35 through the medium of a transmission and of a clutch.
  • the transmission comprises a pulley 36 secured to the shaft of the motor 35, a belt 37 flexing over the pulley 36, and a pulley 38 (see also FIG. 3) mounted loosely on the shaft of the feed roller 11 and over which there flexes also the belt 37.
  • the clutch designated as a whole by 39, comprises a conical toothed pinion 41 (FIG.
  • the pinion 43 and the shaft with which it is integral have a tendency, under the action of gravity, to draw away from the two pinions 41 and 42, abolishing in this way the connection between these two pinions and, accordingly, the connection between the belt transmission 37 and the feed roller 11.
  • This disengaging action is urged also by the reaction of the teeth of the pinions one on the others.
  • the engaging effect is obtained by causing the pinion 43 to rise against the two pinions 41 and 42, by means of a pressurized-fluid jack 46 also secured to the frame of the machine and whose mobile element repels the shaft of the pinion 43.
  • the turning-in member 15 is constituted by a fork having two prongs 51, 52 (FIG. terminated by rounded portions integral with a handle 53 (see also for example FIG. 9) which can slide and pivot inside a sleeve 54 fixed to the frame of the machine by two tabs 55 (see also FIG. 4).
  • the prong 52 is longer than the prong 51 and these two prongs are situated in one and the same plane passing through the axis of the handle 53.
  • the large prong 52 has an extension which comprises a first portion 57 bent back into the plane of the two prongs 51, 52 so as to form, with the long prong 52, an angle A which is slightly less than 90, and a second portion 58 substantially perpendicular to this prong and terminated by a rounded part 59.
  • the turning-in member can assume two distinct angular positions. namely the one shown, for example, in FIG. 5, in which its prongs find themselves slightly off-set on one side (above in the example), of a reference plane determined by the plane tangent externally to the supporting roller 12 and to the stretching roller 13, and another angular position shown, for example, in FIGS. 7 and 9 in which the plane ofits prongs is substantially perpendicular to the said reference plane.
  • the means for actuating this turning-in member are constituted by a jack 62 (FIG. 4) whose cylinder is secured to-the frame of the machine and whose piston rod is integral with the handle 53 of the turning-in member, the said handle bearing a radial lug 65 movable in a cam groove 64 contrived in the sleeve 54, the said cam groove comprising two rectilinear longitudinal portions 66, 67 which extend along two generatrices staggered by about 90 and which are connected by an oblique portion 68.
  • the stop 16 (FIGS. 1 and 5) is constituted by a plane part of triangular general shape formed, in this example, from a wire suitably bent and secured to a rod 71 which can slide and pivot in a socket 72 fixed to the frame of the machine.
  • the plane of this stop 16 is perpendicular to the rod 71 and the direction of this latter is substantially perpendicular to the aforesaid reference plane so that the stop 16 is parallel to the said reference plane and slightly off-set below this latter.
  • the aim of the pivoting movement of this stop is to make this latter retractable for reasons which will be better understood later on.
  • the rod 71 which bears the stop 16 carries out, at the same times as its pivoting movement, an axial sliding movement which draws it away from the reference plane, downwards.
  • the rod 71 bears a lug (not visible in the drawing) which shifts in an appropriate cam groove contrived in the socket 72, the said groove having at its lower end, a small recess which retains the lug in the retracted position of the stop, for the conveniences of the manipulation, the stop being subsequently brought back manually into the active work position.
  • the rod 71 is urged, simultaneously downwardly and angularly, by a torsion spring 74 (FIGS. 5-9).
  • the free end of the stop 16 serves to determine the width of the turning-in 2 and, to this end, it therefore finds itself at a distance from the border 9 (FIG. 5) of the piece 1 that is to be turned-in, corresponding to the width of the turning-in to be formed.
  • the said border of the fabric finds itself positioned by a lateral guide 14 fixed on the corresponding end of the upper supporting roller 12, preferably in an axially adjustable manner on the said roller.
  • the end 16A of the stop finds itself at a distance D from the positioning line of the lateral guide 14 which corresponds to the width of the turning-in that is to be formed.
  • the free end 16A of the stop 16 in the work position finds itself substantially in the axis of the handle 53 of the fork of the turning-in member 15, which can be ascertained, more especially, by examining FIG. 9.
  • a holding element constituted by a finger 77 (FIG. 1 and 4), fixed on an arm 78 secured to the frame of the device, is situated substantially against the top of the upper plane tangent to the two rollers 11 and 12, so as to apply the turned-in portion 2 of the skirt 1 against the said skirt, during the advance of this latter.
  • the free end of the finger 77 is slightly bent upwards in order not to hinder the introduction of the skirt onto the two upper rollers.
  • the operation of the turning-in device is as follows
  • the stop 16 (FIG. 5) being in its lower retracted position, the turning-in member 15 in its position of rest, that is to say of maximum withdrawal and the stretching roller 13 (FIG. I) raised against the action of the spring 29 under the action of its control jack 32, one threads the skirt 1 about the assembly of the three r01- lers 11, 12, 13 by causing its upper portion to pass below the holding finger 77 and above the stop 16 one brings its border 9 (FIG. 5) against the lateral positioning guide 14 carried by the upper supporting roller 12.
  • the jack 32 is released in order to free the stretching roller 13 which descends against the skirt and stretches it.
  • the stop 16 is brought into the active position, the
  • the lug 65 now traverses the second portion 67 of the cam groove 64, which brings about a movement of. translation of the turning-in member, from the position of FIG. 7 to that of FIG. 8.
  • the turning-in forms progressively as the fabric shifts over the rollers depending on circumstances, it can be completely formed when the skirt has effected one complete revolution on itself, or else this formation can necessitate, for example, two or three revolutions of the skirt.
  • FIG. 9 there can be seen the location of the turning-in member 15 cooperating with the stop 16 at the end of the turning-in operation, the fabric being assumed to be removed.
  • the device for example one could adapt the device to the performance of turning-in bottoms of trousers, or else along pieces of materials in strips.
  • a device for turning-in the border of a flexible sheet for subsequent fixing of the turned border by a machine comprising means supporting said sheet in a longitudinal plane, a lateral positioning guide engaging said sheet, a stop having an end portion located adjacent said sheet at a distance from its edge corresponding to the width of the turned border, a turning-in member comprising a fork having a handle and two prongs, one of said prongs being longer than the other, both prongs having rounded ends, means actuating said turning-in member relatively to said sheet and said stop to turn an edge of said sheet by a width determined by the location of said stop, and means moving said sheet relatively to said guide and toward said machine, wherein said means actuating the turning-in member comprise means moving it toward said stop initially in a plane parallel to said plane of the sheet, then pivoting it by substantially degrees and then moving it in a plane perpendicular to said plane of the sheet to cause said longer prong to turn an edge of said sheet over said top.
  • said sheet supporting means comprise two rollers, and means driving at least one of said rollers and wherein one of said rollers is situated in front of said stop and turning-in member relatively to the movement of said sheet, the other one of said rollers being situated behind'said stop and turning-in member, said sheet supporting means further comprising a third roller and means movably connecting said two rollers with said third roller for stretching the sheet.
  • a device in accordance with claim 1, wherein the longer prong of said turning-in member has an inner portion extending substantially parallel to the other prong and an outer portion extending substantially perpendicularly to said inner portion.
  • said means actuating the turning-in member comprise a handle carrying said fork and wherein said means actuating the turning-in member comprise a jack having a moving member connected with said handle, a fixed sleeve, said handle being located in said sleeve and movable therein, said sleeve having a cam groove including two rectilinear portions and an inclined portion interconnecting said rectilinear portions, said handle having a lug slidable in said cam groove.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00215787A 1971-01-11 1972-01-06 Device for turning-in the border of pieces made of flexible sheets Expired - Lifetime US3783805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7100607A FR2121896A5 (enrdf_load_stackoverflow) 1971-01-11 1971-01-11

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US3783805A true US3783805A (en) 1974-01-08

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US00215787A Expired - Lifetime US3783805A (en) 1971-01-11 1972-01-06 Device for turning-in the border of pieces made of flexible sheets

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US (1) US3783805A (enrdf_load_stackoverflow)
DE (1) DE2200917C3 (enrdf_load_stackoverflow)
FR (1) FR2121896A5 (enrdf_load_stackoverflow)
GB (1) GB1336401A (enrdf_load_stackoverflow)
IT (1) IT944632B (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865058A (en) * 1973-05-30 1975-02-11 Automatech Ind Method and apparatus for forming and joining hems, particularly on tubular articles
US3890911A (en) * 1974-04-11 1975-06-24 Usm Corp Automatic hemming machine
DE2745868A1 (de) * 1976-10-18 1978-04-20 Union Special Corp Vorrichtung zum ausbilden und naehen eines saumes an einem schlauchfoermigen stoffstueck
US4098204A (en) * 1975-09-05 1978-07-04 Yamato Mishin Seizo Kabushiki Kaisha Apparatus for stretch-sewing a hem in tubular fabric
US4185570A (en) * 1977-07-05 1980-01-29 Union Special Corporation G.m.b.H. Apparatus for controlling the edge of a tubular workpiece
US4191117A (en) * 1977-03-03 1980-03-04 Rockwell-Rimoldi, S.P.A. Method and apparatus for attaching an elastic band to a tubular workpiece
US4265187A (en) * 1978-06-15 1981-05-05 Rockwell-Rimoldi, S.P.A. Apparatus for applying elastic rings to tubular garments
US4318360A (en) * 1977-12-15 1982-03-09 Tokico, Ltd. Cloth feeder for sewing machine
US4370939A (en) * 1979-12-12 1983-02-01 Bassetti S.P.A. Method and mechanism for inserting an elastic band in selected areas of mattress-wrapping bedclothes
US4432296A (en) * 1982-04-06 1984-02-21 Grondin Edward A Apparatus and method for reducing waste in tufting
US4467734A (en) * 1981-04-30 1984-08-28 Union Special Gmbh Automatic apparatus for conjointly supporting and guiding a tubular workpiece
US4467733A (en) * 1983-01-26 1984-08-28 Pfaff Industriemaschinen Gmbh Device for working the hem of tubular pieces of garment
US4473017A (en) * 1982-02-12 1984-09-25 Amf Inc. Apparatus for automatically hemming tubular garments on a sewing machine
US4484532A (en) * 1982-05-15 1984-11-27 Union Special G.M.B.H Apparatus for blind stitching an S-shaped hem
US4714036A (en) * 1985-11-27 1987-12-22 Institut Textile Defrance Guiding device for the formation of a fold along the edge of a fabric
US4773341A (en) * 1987-10-21 1988-09-27 Sew Simple Systems, Inc. Fitted sheet hemmer
US4860676A (en) * 1987-05-11 1989-08-29 Morimoto Mfg. Co., Ltd. Waistband sew-in device
US4932344A (en) * 1987-05-19 1990-06-12 Harold Tatum Method for production of fitted sheets
US5476053A (en) * 1994-09-27 1995-12-19 Sew Simple Systems, Inc. Flat sheet hemming method and folding and separating apparatus
US5505149A (en) * 1995-04-18 1996-04-09 Jet Sew Technologies, Inc. Method and apparatus for attaching sleeves to shirt bodies
US5918560A (en) * 1997-11-17 1999-07-06 Atlanta Attachment Company Textile fold control system with hem engager

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6472790A (en) * 1987-09-12 1989-03-17 Hamusu Kk Mechnism for rolling three times cuffs of trousers
GB2262291A (en) * 1991-12-11 1993-06-16 Hi Grade Developments Folding apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219002A (en) * 1961-03-24 1965-11-23 Levy Elie Elastic band stitching apparatus
US3224394A (en) * 1963-05-31 1965-12-21 Pfaff Ag G M Machine for sewing baglike structures and the like
US3433187A (en) * 1967-07-03 1969-03-18 Singer Co Apparatus for automatically producing diapers,towels and the like
US3482540A (en) * 1968-03-18 1969-12-09 Singer Co Hemming and button sewing modules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219002A (en) * 1961-03-24 1965-11-23 Levy Elie Elastic band stitching apparatus
US3224394A (en) * 1963-05-31 1965-12-21 Pfaff Ag G M Machine for sewing baglike structures and the like
US3433187A (en) * 1967-07-03 1969-03-18 Singer Co Apparatus for automatically producing diapers,towels and the like
US3482540A (en) * 1968-03-18 1969-12-09 Singer Co Hemming and button sewing modules

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865058A (en) * 1973-05-30 1975-02-11 Automatech Ind Method and apparatus for forming and joining hems, particularly on tubular articles
US3890911A (en) * 1974-04-11 1975-06-24 Usm Corp Automatic hemming machine
US4098204A (en) * 1975-09-05 1978-07-04 Yamato Mishin Seizo Kabushiki Kaisha Apparatus for stretch-sewing a hem in tubular fabric
DE2745868A1 (de) * 1976-10-18 1978-04-20 Union Special Corp Vorrichtung zum ausbilden und naehen eines saumes an einem schlauchfoermigen stoffstueck
US4098201A (en) * 1976-10-18 1978-07-04 Union Special Corporation Method and apparatus for hemming
US4191117A (en) * 1977-03-03 1980-03-04 Rockwell-Rimoldi, S.P.A. Method and apparatus for attaching an elastic band to a tubular workpiece
US4185570A (en) * 1977-07-05 1980-01-29 Union Special Corporation G.m.b.H. Apparatus for controlling the edge of a tubular workpiece
US4318360A (en) * 1977-12-15 1982-03-09 Tokico, Ltd. Cloth feeder for sewing machine
US4265187A (en) * 1978-06-15 1981-05-05 Rockwell-Rimoldi, S.P.A. Apparatus for applying elastic rings to tubular garments
US4370939A (en) * 1979-12-12 1983-02-01 Bassetti S.P.A. Method and mechanism for inserting an elastic band in selected areas of mattress-wrapping bedclothes
US4467734A (en) * 1981-04-30 1984-08-28 Union Special Gmbh Automatic apparatus for conjointly supporting and guiding a tubular workpiece
US4473017A (en) * 1982-02-12 1984-09-25 Amf Inc. Apparatus for automatically hemming tubular garments on a sewing machine
US4432296A (en) * 1982-04-06 1984-02-21 Grondin Edward A Apparatus and method for reducing waste in tufting
US4484532A (en) * 1982-05-15 1984-11-27 Union Special G.M.B.H Apparatus for blind stitching an S-shaped hem
US4467733A (en) * 1983-01-26 1984-08-28 Pfaff Industriemaschinen Gmbh Device for working the hem of tubular pieces of garment
US4714036A (en) * 1985-11-27 1987-12-22 Institut Textile Defrance Guiding device for the formation of a fold along the edge of a fabric
US4860676A (en) * 1987-05-11 1989-08-29 Morimoto Mfg. Co., Ltd. Waistband sew-in device
US4932344A (en) * 1987-05-19 1990-06-12 Harold Tatum Method for production of fitted sheets
US4773341A (en) * 1987-10-21 1988-09-27 Sew Simple Systems, Inc. Fitted sheet hemmer
US5476053A (en) * 1994-09-27 1995-12-19 Sew Simple Systems, Inc. Flat sheet hemming method and folding and separating apparatus
WO1996010669A1 (en) * 1994-09-27 1996-04-11 Sew Simple Systems, Inc. Flat sheet hemmer and method
US5505149A (en) * 1995-04-18 1996-04-09 Jet Sew Technologies, Inc. Method and apparatus for attaching sleeves to shirt bodies
US5918560A (en) * 1997-11-17 1999-07-06 Atlanta Attachment Company Textile fold control system with hem engager

Also Published As

Publication number Publication date
DE2200917B2 (de) 1973-12-06
DE2200917C3 (de) 1974-07-04
GB1336401A (en) 1973-11-07
FR2121896A5 (enrdf_load_stackoverflow) 1972-08-25
DE2200917A1 (de) 1972-07-27
IT944632B (it) 1973-04-20

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