US3266450A - Device for use on zig-zag sewing machines for making carpets - Google Patents

Device for use on zig-zag sewing machines for making carpets Download PDF

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Publication number
US3266450A
US3266450A US367761A US36776164A US3266450A US 3266450 A US3266450 A US 3266450A US 367761 A US367761 A US 367761A US 36776164 A US36776164 A US 36776164A US 3266450 A US3266450 A US 3266450A
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US
United States
Prior art keywords
needle
presser foot
sole
area
sew
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
US367761A
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English (en)
Inventor
Schenkengel Emerich
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
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 GM Pfaff AG filed Critical GM Pfaff AG
Application granted granted Critical
Publication of US3266450A publication Critical patent/US3266450A/en
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
    • D05C17/02—Tufted products
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04G—MAKING NETS BY KNOTTING OF FILAMENTARY MATERIAL; MAKING KNOTTED CARPETS OR TAPESTRIES; KNOTTING NOT OTHERWISE PROVIDED FOR
    • D04G3/00—Making knotted carpets or tapestries
    • D04G3/02—Making knotted carpets or tapestries by hand; Tools therefor
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet

Definitions

  • the present invention relates to zig-zag sewing machines and is particularly concerned with a device for use on machines of that type to produce carpets.
  • the device comprises primarily a material presser foot and means for displacing the stitch area of the needle from the zero position.
  • the new device is intended to make it possible to sew patterns into the carpet pile that has already been finished, and that in a manner that the free surface of the sewn on pile pattern extends substantially flush with respect to the pile first sewn.
  • the sole holding down the material is made L-shaped in order to hold with the one part of the L-shaped which, as seen from the position of the steamstress, is located laterally and outside of the sewing area of the needle and the other part of the L-shape is positioned in front of the sewing area so that the sewing area is only partially encompassed by the sole. Furthermore, that part of the L-shaped sole which is located ahead of the sewing area is provided with two sew-over tongues which extend with their free ends into the free space between the sewing or stitching area and the shank of the presser foot so that one of them is positioned to the left and the other to the right of the central neutral line of the stitch area to which the needle is adjusted.
  • the invention provides a loop rejector which extends substantially parallel to the sew-over tongues and which facilitates the parallel guiding for the seamstress when she is sewing a bead alongside another head that has already been sewn.
  • FIG. 1 is a perspective view of the presser foot which is required for carpet sewing
  • FIG. 2 illustrates on an enlarged scale the operations required for producing pile carpeting.
  • the invention is incorporated in a household sewing machine which is equipped with a zig-zag mechanism of conventional type, all parts of which must be considered as being known and which are therefore not illustrated in the drawings.
  • the shank 1 of the presser foot intended for use with such a sewing machine is provided with an L-shaped sole 4 for holding down the material.
  • the sole 4 comprises the legs 2 and 3. It encompasses the stitching area of the needle 5 which in zig-zag sewing machines that are equipped with means for adjusting the stitch positions is located within the reference lines xyz.
  • the free end of the shank 3 of the presser foot terminates in a loop rejector 6.
  • the shank 3 is furthermore provided with three sewover tongues 7 and 8, which are rigidly fastened thereto and which are in the form of thin, flat members.
  • the sew-over tongues 7, 8 are arranged in a manner that they are located symmetrically with respect to the center Zeno line of the sewing area and are disposed between the zero lines xy or zy of the sewing area.
  • the thread loops 9, 10 (FIG. 2) that must be laid over the tongues 7, 8 are carried above the bottom of the sole 11 by the backs 12,
  • the backs 12, 13 are disposed at different distances from the bottom of the sole, in particular, the back 13 of the sew-over tongue is at a distance m from the bottom and the back 12 of the sew-over tongue 7 at a distance n.
  • Tests with yarns of different thicknesses that are suitable for the production of carpets on sewing machines resulted in determining a ratio of 1.3 to 1 as a suitable relation between m and n. For example, if a pile 21 that forms a decorative pattern is sewn onto a fabric piece 17 which is covered with pile 1 8, 19 the latter is pressed down under the presser foot and thus is held down. After sewing on the pattern pile 21, however, the pile located adjacent thereto and not covered by its raises up again so that the pattern pile that has been sewn on to a lesser loop height will provide an effect where it is flush with the pile first sewn on.
  • over-sew tongues 7, 8 are extended forwardly of the shank 3 to the outer edge of the sole 14 so that between them an inlet channel 15 is formed for a seam insert 16 such as a cord.
  • the needle 5 is set to the left neutral line of the sewing area (stitch position left) or to the right neutral line (stitch position right) and is adjusted for the corresponding overstitch width, it is possible to sew thread loops over either one or the other of the over-sew tongues 7, 8 so that it becomes possible to produce carpet piles of greater or smaller height.
  • This provides the possibility of sewing a pile 21 in the form of a decorative pattern constituted by low loops onto a pile which covers the entire fabric base 17 and that had been formed by higher loops.
  • carpet borders be reinforced in order to delay any unattractive flattening caused by stepping.
  • cord insert 16 is generally conventional to sew a cord insert 16 into the seam 20 that forms the binding.
  • FIG. 2 shows a carpet that is produced by means of the device in accordance with the invention and which consists of a fabric base 17 that has already been partly covered by sewing with boucle pile 18 and with plush pile 19.
  • the loops 18 remain closed.
  • the cutting can be effected manually or also on the machine and that not only during the sewing operation but also after the sewing has been terminated.
  • the plush pile is formed that is indicated at 19 in FIG. 2.
  • Device for use in a Zig-Zag sewing machine having a needle for producing carpets and comprising a presser foot disposed proximate and operatively associated with said needle and means for displacing thezero position of the stitching area of the needle, said presser foot having a shank provided with an L-s-haped presser foot sole having a free leg and extending outside of the stitching area of said needle and defining a stitching area between said presser foot shank and said free leg of said sole, said free leg having a pair of sew-over tongues extending into the area proximate said shank and adjacent the stitching area and having a loop rejector at the freely extending end thereof, in a manner that one each sew-over tongue is disposed intermediate two Zero or reference lines of the stitching area, said sole having a bottom surface and said tongues presenting backs for carrying thread loops extending to different heights above said bottom surface.
  • Device for use in a Zig-zag sewing machine having a needle for producing carpets and comprising a presser foot disposed proximate and operatively associated with said needle and means for displacing the zero position of the stitching area of the needle, said presser foot having a shank provided with an L-shaped presser foot sole having a free leg and extending outside of the stitching area of said needle and defining a stitching area between said presser foot shank and said free leg of said sole, said free leg having a pair of sew-over tongues extending into the area proximate said shank and adjacent the stitching area and having a loop rejector at the freely extending end thereof, in a manner that one each sew-over tongue is disposed intermediate two Zero or reference lines of the stitching area, said sole having a bottom surface and said tongues presenting backs for carrying thread loops extending to different heights above said bottom surface, and said sew-over tongues extending over the sole of said one leg of said L and defining above and with said one

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US367761A 1963-05-17 1964-05-15 Device for use on zig-zag sewing machines for making carpets Expired - Lifetime US3266450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0031830 1963-05-17

Publications (1)

Publication Number Publication Date
US3266450A true US3266450A (en) 1966-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US367761A Expired - Lifetime US3266450A (en) 1963-05-17 1964-05-15 Device for use on zig-zag sewing machines for making carpets

Country Status (4)

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US (1) US3266450A (de)
AT (1) AT246542B (de)
CH (1) CH417297A (de)
GB (1) GB1001918A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420197A (en) * 1967-05-08 1969-01-07 Singer Co Tufting presser foot for zigzag sewing machines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645576Y2 (de) * 1976-12-21 1981-10-24
GB2234532B (en) * 1989-06-16 1993-06-23 Marrgain Limited Method manufacturing a pile fabric
CH707972B1 (de) * 2013-04-30 2017-06-30 Bernina Int Ag Nähvorrichtung und Nähverfahren.
US20210372021A1 (en) * 2020-05-29 2021-12-02 Columbia Insurance Company Artificial Turf Assembly And Process Of Manufacture Thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481286A (en) * 1947-03-21 1949-09-06 American Seating Co Presser foot attachment for french seam sewing machines
US3117542A (en) * 1961-04-05 1964-01-14 Pfaff Ag G M Arrangement in zig-zag sewing machines for sewing button holdes automatically
US3140680A (en) * 1964-01-17 1964-07-14 Brenner Abe Zipper foot device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481286A (en) * 1947-03-21 1949-09-06 American Seating Co Presser foot attachment for french seam sewing machines
US3117542A (en) * 1961-04-05 1964-01-14 Pfaff Ag G M Arrangement in zig-zag sewing machines for sewing button holdes automatically
US3140680A (en) * 1964-01-17 1964-07-14 Brenner Abe Zipper foot device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420197A (en) * 1967-05-08 1969-01-07 Singer Co Tufting presser foot for zigzag sewing machines

Also Published As

Publication number Publication date
AT246542B (de) 1966-04-25
GB1001918A (en) 1965-08-18
CH417297A (de) 1966-07-15

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