US3523431A - Raschel machine - Google Patents

Raschel machine Download PDF

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Publication number
US3523431A
US3523431A US573363A US3523431DA US3523431A US 3523431 A US3523431 A US 3523431A US 573363 A US573363 A US 573363A US 3523431D A US3523431D A US 3523431DA US 3523431 A US3523431 A US 3523431A
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US
United States
Prior art keywords
needle
needles
machine
threads
latches
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
US573363A
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English (en)
Inventor
Walter Hugo Scheibe
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.)
KNIT ALL RESEARCH AG
Original Assignee
KNIT ALL RESEARCH 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 KNIT ALL RESEARCH AG filed Critical KNIT ALL RESEARCH AG
Application granted granted Critical
Publication of US3523431A publication Critical patent/US3523431A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/16—Flat warp knitting machines specially adapted for producing fabrics, or article blanks, of particular form or configuration
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/04—Latch needles

Definitions

  • the front guide bars place threads which lie on the side of the latches below the tips of the needle latches and form blind stitchings, while the rear guide bars pass warp tbreads and produce the ground, which warp threads lie above the tips of the needle latches and below the needle hook points, prior to the downward movement of the needles, so that the guide bars alone perform the blind stitchings and the loops without the use of a fall plate.
  • the present invention relates to a Raschel knitting machine.
  • lt is one object of the present invention to provide a Raschel knitting machine which permits provision of a fast running Raschel Machine for the production of socalled fall plate fabrics without the use of a fall plate.
  • FIG. 1 is a schematic elevation of a Raschel knitting machine With a fall plate in the uppermost position of the needle upon termination of the stitching of the threads, to indicate the status 0f the prior art;
  • FIG. 2 is a schematic elevation of the Raschel knitting machine disclosed in FIG. 1 after an at least part downward rnovernent of the needle again With a fall plate, to indicate likewise the status of the prior art;
  • FIG. 3 is a schematic elevation of a Raschel knitting machine designed in accordance With the present invention indicating the omission of a fall plate without emitting the function of a previously used fall plate, in the uppermost position of the needle;
  • FIG. 4 is a schematic elevation of the Raschel machine disclosed in FIG. 3, indicating the position after an at least part downward movernent of the needle.
  • FIG. l is a schematic section indicating the upperrnost position of the needle bar 1 and including a fall plate 12.
  • Rear guide bars 5 perform the stitchings leading to the loop formation.
  • FIG. 2 indicates a position arrived at shortly after the osition shown in FIG. 1 upon slight downward movement of the needle 20.
  • the fall plate 12 has moved downwardly and has pushed down the thread 7 of the blind stitching along the needle tongue 60, so that upon fnrther downward movement of the needle 20 the thread 7 assumes a position below the needle tongue 60 and cannot enter the needle hook 110.
  • FIGS. 3 and 4 an embodiment of a Raschel machine having a single bar incorporating the present invention is disclosed.
  • FIG. 3 indicates the machine, similar to the showing in FIG. 1 in the uppermost position of the needle bar.
  • the latches 6 of the needles 2 are so short, that the threads 7 Wund about the needles 2 by the front guide bars surround the needles 2 below the needle latches 6, which is made possible, in accordance with the present invention, by shortening the length of the needle latches 6 from the 1ength a (FIG l), to the length a (FIG. 3). Accordingly the distance of the pivot point of the latches 6 from the upper edge of the needle hook 11 is shorter than the corresponding distance from the needle hook 110 in FIGS. 1 and 2.
  • FIG. 4 shows the machine in a position, corresponding to FIG. 2 of the prior art structure, shortly after the position of the needle bar shown in FIG. 3. It is apparent from FIGS. 3 and 4, that no fall plate 12 is required, in order to bring the thread 7 of the blind stitchings below the needle latch 6, so that they slide during downward movement of the needles along the needle latches 6 and the needle hooks 11.
  • the threads 8 of the rear guide bars surround, however, the needles 2 above the needle latches 6 and slide during downward movernent of the needles 2 into the needle hooks 11, by which they are pulled through the loop 9 of the finished goods 10 disposed on the needles 2, in order to forrn a new loop.
  • the threads 7 are not pulled through the loop 9, rather are bound by one leg of the loops formed by the threads 8.
  • the goods 10 are kept down by means of a stitch cornb (not shown, as arranged in accordance with U.S. Pat. N0. 2,477398), disposed on the side of the needle latch 6 and equipped With abutments t0 stop premature closing of the needle latches 6.
  • the machine designed in accordance with the present invention, does not only permit a high number of revolutions during the production 0f normal fall plate fabrics, rather also fall plate fabrics With so-called double laying. With a double laying of the effect threads, the hiding of the cheap cotton filling material threads used for the base 0f the fabrics has been obtained already.
  • double bar fabric which comprises a single-needle elastic knitting prodced on the needle bar equipped for forming blind stitchings and a ground knitting produced on the other needle bar of synthetic monofil-thread to which the elastic knitting is attached at sorne p0ints.
  • Such goods permit a plastic deforrnation of the ground knitting, which serves as stabilizing knitting for instance, in brassieres and bathing suits for the elastic knitting, which is not loosened from the ground knitting during washing and wringing, as it is the case with coinins.
  • each of said needles including hook points and downwardly turned latches having tips
  • said real guide bars being adapted to pass warp threads for producing loops
  • said needle latches being shorter than conventional latches of conventional needles, so that prior to the downward movement of said needles said threads placed by said front guide bars e;ngago said needles below said tips and and form blind stitchings, while said threads passed by said rear guide bars 1ie above said tips but below said needle hook points and form normal stitchings producing loops, so that said guide bars alone perform the blind stitchings and the loops without the use of a fall plate.
  • the Raschel machine as set forth in claim l, which includes a stitch cornb dispose'd on the sid of said needle latches and equipped with an abutment to stop premature closing of said needle latches.
  • the Raschel machine comprising two needle bars, one of said needle bars being equipped as set forth in claim 1 for perforrning said blind stitchings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Knitting Machines (AREA)
US573363A 1965-08-18 1966-08-18 Raschel machine Expired - Lifetime US3523431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU49340A LU49340A1 (enrdf_load_stackoverflow) 1965-08-18 1965-08-18

Publications (1)

Publication Number Publication Date
US3523431A true US3523431A (en) 1970-08-11

Family

ID=19724426

Family Applications (1)

Application Number Title Priority Date Filing Date
US573363A Expired - Lifetime US3523431A (en) 1965-08-18 1966-08-18 Raschel machine

Country Status (5)

Country Link
US (1) US3523431A (enrdf_load_stackoverflow)
DE (2) DE1585142A1 (enrdf_load_stackoverflow)
GB (1) GB1106398A (enrdf_load_stackoverflow)
LU (1) LU49340A1 (enrdf_load_stackoverflow)
NL (1) NL6611600A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665733A (en) * 1970-07-16 1972-05-30 Union Carbide Corp Apparatus and method for warp knitting a simulated woven fabric
US3675447A (en) * 1970-06-26 1972-07-11 Union Carbide Corp Simulated-weave, warp-knit fabric, and method for making the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092701A (en) * 1935-06-24 1937-09-07 Willis A Ingalls Fabric transfer mechanism for knitting machines
US2396489A (en) * 1942-07-20 1946-03-12 Bentley Eng Co Ltd Knitting machine
US2744398A (en) * 1951-04-28 1956-05-08 Scheibe Walter Warp knitting machine
US3063274A (en) * 1956-04-13 1962-11-13 Kohl Karl Raschel warp knitting machine with novel latch needles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092701A (en) * 1935-06-24 1937-09-07 Willis A Ingalls Fabric transfer mechanism for knitting machines
US2396489A (en) * 1942-07-20 1946-03-12 Bentley Eng Co Ltd Knitting machine
US2744398A (en) * 1951-04-28 1956-05-08 Scheibe Walter Warp knitting machine
US3063274A (en) * 1956-04-13 1962-11-13 Kohl Karl Raschel warp knitting machine with novel latch needles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675447A (en) * 1970-06-26 1972-07-11 Union Carbide Corp Simulated-weave, warp-knit fabric, and method for making the same
US3665733A (en) * 1970-07-16 1972-05-30 Union Carbide Corp Apparatus and method for warp knitting a simulated woven fabric

Also Published As

Publication number Publication date
LU49340A1 (enrdf_load_stackoverflow) 1965-10-18
DE1585142A1 (de) 1971-03-04
NL6611600A (enrdf_load_stackoverflow) 1967-02-20
DE1955039U (de) 1967-02-09
GB1106398A (en) 1968-03-13

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