US2120749A - Knockover device - Google Patents

Knockover device Download PDF

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Publication number
US2120749A
US2120749A US124743A US12474337A US2120749A US 2120749 A US2120749 A US 2120749A US 124743 A US124743 A US 124743A US 12474337 A US12474337 A US 12474337A US 2120749 A US2120749 A US 2120749A
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US
United States
Prior art keywords
knockover
loops
heel
point
bits
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
US124743A
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English (en)
Inventor
Heinitz Woldemar
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.)
Rieter Ingolstadt GmbH
Original Assignee
Schubert und Salzer Maschinenfabrik 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 Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Application granted granted Critical
Publication of US2120749A publication Critical patent/US2120749A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B11/00—Straight-bar knitting machines with fixed needles

Definitions

  • the present invention relates to straight knitting machines for the manufacture of stockings and more particularly refers to a device used in such machines for knocking over the heel loops during the time the loops of the instep portion are placed in suspense.
  • this operation of the loops placed in suspense and the desired proper formation of the heel loops respectively is obtained by the fact, that knocking over is discontinued at the loops placed in suspense, for instance by disconnecting portions of the knockover bar or by imparting additional movements in between wide ranges to these parts.
  • knockover bits are used which are provided with a second knockover point upon which in the range of theheel loops knocking over is effected during the manufacture of the heel portions by a special movement of the knockover bar.
  • the object of the invention is to provide adevice by means of which a perfectly faultless formation of the heel loops is produced without drawing or pulling off and simultaneously also the highest possible protection of the row of loops is obtained which hangs on the frame needles of the instep portion from the beginning of the manufacture of the heel portions to the end of this operation.
  • the object aimed at is obtained in the most simple manner by the fact, that theknockover bits cooperating with the needles used to produce the heel loops are provided with a second knockover point arranged with regard to the firstknockover point in front of same and in an elevated position. -With this arrangement during the formation of the rows of loops of theheel portions knockover on the second knockover point is automatically efiected on the wales in consideration by the already altered amplitude of the oscillation of the frame needles due to the use of auxiliary presser combs.
  • Fig. 1 is an elevation of the frame needle and the knockover bit in the normal knockover position
  • Fig. 2 shows an elevation similar to that of Fig. 1 but illustrating the frame needle and the knockover bit in the knockover position during the manufacture of the heel portions
  • Fig. 3 is a diagrammatic view illustrating the mode of operation carried out with the individual parts of the machine occupying the position shown in Fig. 2,
  • Fig. 4 shows the front portion of a knockover bit on an enlarged scale and illustrates the different knockover points
  • Fig. 5 is a view on an enlarged scale of the position of the thread and the knockover position during the manufacture of the heel portions.
  • the knockover bits I have the form shownin full lines in Fig. 4 and are provided with the second knockover point 2.
  • the knockover bits I used in the production of the heel loops are, as indicated in broken lines in Fig. 4, provided with an elevation by which the second knockover point 3 lying in a higher level-is obtained.
  • the loops in the range of the instep portion are not influenced by the knockover bits I as in this range the knockover bits are not provided with the elevated second knockover point (left hand bit Fig. 5).
  • the roller I may, of course, be shifted by hand or automatically.
  • an auxiliary knockover cam would then have to be provided havingan additional curve corresponding to the additional curve I. If the roller I0 would be shifted into the path of the auxiliary knockover i camrthe elevated knockover points 3 of the knockover bits would be brought below the loops of the needles moved in the normal manner.
  • a device used in straight knitting machines for knocking over the heel loops of stock ings during the time the loops of the instep por- ,tion of the stocking are placed in suspense comprising irame needles, knockover bits having a single knockover point cooperating with said a frame needles knitting the instep portion, other knockover bits provided with two knockover points associated with said frame needles which knit the heel tabs and .means for altering the.
  • a device used in straight knitting ma.- chines for knocking over the heel loops of stockings during the time the loops of the instep portion of the stocking are placed in suspense, comprising frame needles, knockover bits having a single knockover point cooperating with said frame needles knitting the instep portion, other knockover bits provided with two knockover points associated with said frame needles which knit the heel tabs, said knockover bits provided with two knockover points having the second knockover point in front of the first knockover point and at a higher level, and means for altering the amplitude of oscillations of said frame needles to effect knocking over of the loops hanging on same at the one or other knockover point.
  • a device used in straight knitting machines for knocking over the heel loops of stockings during the time the loops of the instep portion of the stocking are placed in suspense comprising i'rame needles, knockover bits having a single knockover point cooperating with said frame needles knitting the instep portion, other knockover bits provided with two knockover points associated with said frame needles which knit the heel tabs and means for altering the amplitude of oscillations of said frameneedles to effect knocking over of the loops hanging on I same at the one or other knockover point comprising an auxiliary presser cam provided with an additional curve.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Socks And Pantyhose (AREA)
US124743A 1936-02-13 1937-02-08 Knockover device Expired - Lifetime US2120749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475761X 1936-02-13

Publications (1)

Publication Number Publication Date
US2120749A true US2120749A (en) 1938-06-14

Family

ID=6541897

Family Applications (1)

Application Number Title Priority Date Filing Date
US124743A Expired - Lifetime US2120749A (en) 1936-02-13 1937-02-08 Knockover device

Country Status (4)

Country Link
US (1) US2120749A (fr)
ES (1) ES143575A1 (fr)
FR (1) FR817155A (fr)
GB (1) GB475761A (fr)

Also Published As

Publication number Publication date
GB475761A (en) 1937-11-25
FR817155A (fr) 1937-08-27
ES143575A1 (es) 1937-06-01

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