US3658020A - Sewing machine device adapted for applying closed tubular strapping to fabric edges - Google Patents

Sewing machine device adapted for applying closed tubular strapping to fabric edges Download PDF

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Publication number
US3658020A
US3658020A US756247A US3658020DA US3658020A US 3658020 A US3658020 A US 3658020A US 756247 A US756247 A US 756247A US 3658020D A US3658020D A US 3658020DA US 3658020 A US3658020 A US 3658020A
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US
United States
Prior art keywords
branches
strapping
guide member
tubular
fin
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
US756247A
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English (en)
Inventor
Nerino Marforio
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.)
Virginio Rimoldi and Co SpA
SpA VIRGINIO RIMOLDI AND C
Original Assignee
Virginio Rimoldi and Co SpA
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 Virginio Rimoldi and Co SpA filed Critical Virginio Rimoldi and Co SpA
Application granted granted Critical
Publication of US3658020A publication Critical patent/US3658020A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D05B35/062—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding with hem-turning
    • 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

Definitions

  • the present invention refers to a device particularly adapted for applying a closed tubular strapping along the edge of a fabric, such as knitwear articles, said device being applied to a sewing machine, for example, of the chain stitch type.
  • Sewing machines provided 'with guides for inserting the edges of knitwear articles between the split edges of lining strappings or so-called collars also made of knit material are already known. They are especially used for the lining of knit outerwear articles, forexample, along the edges of the neck opening, at the extremity of the sleeves, along the lower edges, etc.
  • known guides have the disadvantage of being complicated and of requiring, for their use, specialized personnel thereby accounting for a large part of the manufacturing costs of such knitwear articles.
  • An object of this invention is that of eliminating the above mentioned disadvantages by providing a simple device of the type mentioned, which is simple to use.
  • the technical problem to be solved, in this regard, was that of realizing a device provided with such means as to guide the knitwear article and, at
  • a device of the type mentioned comprising a fixed guide provided with fins and a movable guide provided with a bar ending in two curved branches which are curved and spaced from each other, the tubular strapping being slidable around said bar so that when said bar is positioned near to the fixed guide in the working position, the said fixed guide fins insert themselves between said branches and thereby fold said strapping forming two double layer laps between which the edge of the knitwear article is inserted and sewn.
  • FIG. 1 represents in perspective the device of this invention attached to a conventional sewing machine
  • FIGS. 2 and 3 are enlarged detail views of the device of FIG.
  • FIG. 4 is an enlarged top plan view of the device in the working position
  • FIG. 5 is an enlarged elevation view of a part of the device
  • FIG. 6 is a section view of FIG. 5 taken along line VI-VI;
  • FIG. 7 shows the device of FIG. 4 with the knitted parts to be joined mounted thereon;
  • FIG. 8 is a section view of FIG. 7 taken along line VIII- VIII;
  • FIG. 9 is a pictorial view of a portion of tubular strapping.
  • FIG. 10 is a section view through the finished work.
  • the sewing machine onto which the device which is the subject of this invention is mounted is constituted by known parts such as the arm 1 supported by the bed plate 2, the tension device 3 for tensioning the thread leading to needle 4 and the tension device 5 for tensioning the thread of the looper (not shown) which is mounted within the base 2, and, the presserfoot 6 provided with a hole 7 through which passes the needle 4.
  • the presserfoot 6 which is fixed by means of the screw 8 to the presser bar 9 is composedof a spring urged sole 10 provided with a hole 7 and a second sole l1 oscillatable about horizontal pin 11' about which it is urged by means of the spring 12, one of whose ends presses against screw 13 which is fixed to the smaller cylinder 14 which bears against the upper surface of sole 11.
  • the device which constitutes the invention is composed of a fixed guide 16 and a movable guide 17 which work together in a way which will be hereinafter described.
  • the guide 16 includes a generally horizontal resting surface 16 and a vertical extension 18 for fixing guide 16 to base 2 by means of the screw 19.
  • Guide 16 also includes successively towards the needle 4, a primary pair of guiding fins 20, a secondary pair of fins 21 and a third folding fin 22 placed near presserfoot 6 (FIG. 4).
  • the movable guide 17 (FIG. 1) includes a bar 23 terminating in two curved branches 24 vertically spaced from each other. At the end opposite to said branches, the bar 23 terminates in a hand-knob. 25 by which guide 17 can be gripped to be moved from the position represented by the continuous line to that represented by the dotted line and vice versa.
  • Bar 23 is mounted between upper and lower rollers 26 (FIGS. 5 and 6) which are freely rotatably mounted between the two plates 27' and 28. Bar 23, therefore, is longitudinally slidable between plates 27 and 28 with the rollers 26 providing rolling support therefor along its top and bottom edges.
  • the rollers are spaced apart along the length of bar 23 a sufficient distance so as to provide vertical stability to the bar against tilting thereof in a vertical plane.
  • Onto bar 23 is fixed, by means of screws 29, a plate 30 which delimits the travel of the bar 23 in the direction towards the guide 16.
  • the forward edge 31 of the plate 30 is arranged to abut against the rear edge 32 of the plate 28.
  • Onto said plate 30 there is fulcrumed the lever 33 about pin 34.
  • An end of said lever 33 is provided with a tooth 35 which engages in a notch in plate 28 while its opposite end is urged upwardly by spring 36, so that the movable guide '17 is thereby prevented from being moved away from this working position (FIGS. 1 and 5) by various causes, such as vibrations of the machine or inadvertence of the operator.
  • the tubular strapping-40 (FIG. 9-) is composed of a tubular knit body 41 stitched along edge 42, and by a unitary knit body 43.
  • guide 17 is brought into the position shown by the dotted line in FIG. 1 and the a precut length of tubular strapping 40 is telescoped over guide 17 beginning at the free end thereof so that the edge 42 is centrally positioned along the outer vertical side of bar 23 which faces fixed guide 16.
  • Guide 17 is then pushed along rollers 26 until it reaches the position represented by the solid line in FIG. 1 so that the fixed fins 21 and 22 insert themselves into the vertical space between the two branches 24 and thereby fold the tubular body 41 along the stitched edge 42 (FIGS. 7 and 8).
  • the forward end 45 of the strapping 40 is then brought under the sole 10 of the presserfoot 6 (FIG. 2) and the longitudinal edge 46 of the knitwear article 44 disposes itself on the resting surface 16' so that it is guided under the presserfoot sole 11.
  • the known work feeder simultaneously advances the strapping 40 and article 44 under the presserfoot 6 uniting them together by means of stitching 47 carried out by needle 4 together with a looper (not shown). In this way, the edge 46 of the knitwear article 44 becomes stitched between the two double layer laps 48 and 49 of the strapping 40.
  • the attachment means of this invention could be employed, if desired, to simply fold and sew a tubular strapping in the form of double layer overlying laps 48 and 49 without necessarily having piece 44 interposed therebetween.
  • the first guide member 16 could be curved while the second member 17 is straight so long as the gradual merging relationship of the two members is maintained.
  • the fin means 20, 21, and 22 are configured so as to perform a gradual folding over of the tubular strapping as it advances towards the free end of the member 17.
  • An attachment means mountable upon a sewing machine for the purpose of folding and sewing a length of a tubular strapping in the form of double layer overlying laps comprising: a first guide member fixedly mountable in advance of the machine resser-foot along the path of travel of a workpiece which is to be sewn, a second elongate guide member having a free end portion defined by vertically spaced apart branches, said branches being positionable alongside said first guide member, said first guide member including a fin means adapted to lie along a lengthwise portion of said branches with said fin means extending transversely into the space between said branches, a support for mounting said elongate member on a sewing machine whereby said elongate member is longitudinally slidable in respective opposite directions relative to said support, said second guide member being movable along said support to a position whereby said fin means are retracted outwardly from between said branches whereby a tubular strapping may be telescopically slid over said second member beginning at the free end thereof, said fin
  • said second guide member branches and said first member fin means progressively merging towards each other and said fin means progressively extending to a greater degree between said branches in the direction towards the free end of said second guide member, whereby said fin means serve to effect the aforementioned folding of a tubular strapping gradually and to an increasing extent as the strapping advances towards said free end.
  • said fin means comprises a series of longitudinally successive fins adapted to progressively fold a strapping as it advances therealong.
  • said first guide member including a surface portion adapted to support a flat fabric along the midplane between said branches, said first and second guide members being adapted to simultaneously guide said tubular strapping and said flat fabric workpiece towards the respective free ends of said members with the fabric being fitted between said folded double layer laps of said strapping.
  • An attachment means mountable upon a sewing machine for the purpose of folding and sewing a'length of a tubular strapping in the form of double layer overlying laps comprising: a first guide member fixedly mountable in advance of the machine presser-foot along the path of travel of a workpiece which is to be sewn, a second elongate guide member having a free end portion defined by vertically spaced apart branches, said branches being positionable alongside said first guide member, said first guide member including a fin means adapted to lie along a lengthwise portion of said branches with said fin means extending transversely into the space between said branches over said second guide member being movable on said support to a position whereby said fin means are retracted outwardly from between said branches whereby a tubular strapping may be telescopically slid over said second member beginning at the free end thereof, said fin means being adapted to fold such a strapping into double layer overlying laps pursuant to said fins extending between said branches, said support comprising a pair of opposed

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US756247A 1967-09-07 1968-08-29 Sewing machine device adapted for applying closed tubular strapping to fabric edges Expired - Lifetime US3658020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2022267 1967-09-07

Publications (1)

Publication Number Publication Date
US3658020A true US3658020A (en) 1972-04-25

Family

ID=11164880

Family Applications (1)

Application Number Title Priority Date Filing Date
US756247A Expired - Lifetime US3658020A (en) 1967-09-07 1968-08-29 Sewing machine device adapted for applying closed tubular strapping to fabric edges

Country Status (6)

Country Link
US (1) US3658020A (it)
DE (1) DE1785213B2 (it)
ES (1) ES357927A1 (it)
FR (1) FR1577058A (it)
GB (1) GB1154670A (it)
NL (1) NL159737B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811391A (en) * 1973-06-11 1974-05-21 Melco Ind Inc Sewing guide apparatus
US3875768A (en) * 1972-02-28 1975-04-08 Werner Arndt Knitted terminal edging
US4271772A (en) * 1977-09-14 1981-06-09 Ugo Pignatti Sewing machine attachment for edgings and collars
EP0805228A1 (en) * 1996-05-02 1997-11-05 CONTI COMPLETT S.p.A. Precision-stitch sewing machine for applying a tubular welt to an edge of a knitted or woven fabric or the like
EP0967314A2 (en) * 1998-06-17 1999-12-29 Conti Complett S.p.A. Method and tubular band with a separable portion for carrying out quick overlocking
CN106436064A (zh) * 2016-10-28 2017-02-22 利诚服装集团股份有限公司 一种自动翻卷穿带装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085958A (en) * 1912-01-08 1914-02-03 Motel Abramowitz Edge-turning attachment for sewing-machines.
US1959121A (en) * 1931-08-08 1934-05-15 Chase Bag Co Cloth folding attachment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085958A (en) * 1912-01-08 1914-02-03 Motel Abramowitz Edge-turning attachment for sewing-machines.
US1959121A (en) * 1931-08-08 1934-05-15 Chase Bag Co Cloth folding attachment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875768A (en) * 1972-02-28 1975-04-08 Werner Arndt Knitted terminal edging
US3811391A (en) * 1973-06-11 1974-05-21 Melco Ind Inc Sewing guide apparatus
US4271772A (en) * 1977-09-14 1981-06-09 Ugo Pignatti Sewing machine attachment for edgings and collars
EP0805228A1 (en) * 1996-05-02 1997-11-05 CONTI COMPLETT S.p.A. Precision-stitch sewing machine for applying a tubular welt to an edge of a knitted or woven fabric or the like
EP0967314A2 (en) * 1998-06-17 1999-12-29 Conti Complett S.p.A. Method and tubular band with a separable portion for carrying out quick overlocking
EP0967314A3 (en) * 1998-06-17 2000-11-08 Conti Complett S.p.A. Method and tubular band with a separable portion for carrying out quick overlocking
CN106436064A (zh) * 2016-10-28 2017-02-22 利诚服装集团股份有限公司 一种自动翻卷穿带装置

Also Published As

Publication number Publication date
ES357927A1 (es) 1970-04-01
DE1785213B2 (de) 1975-01-30
DE1785213C3 (it) 1975-09-04
NL159737B (nl) 1979-03-15
FR1577058A (it) 1969-08-01
GB1154670A (en) 1969-06-11
DE1785213A1 (de) 1972-01-05
NL6812741A (it) 1969-03-11

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