US3391549A - Selector control device for circular knitting machines - Google Patents

Selector control device for circular knitting machines Download PDF

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Publication number
US3391549A
US3391549A US496756A US49675665A US3391549A US 3391549 A US3391549 A US 3391549A US 496756 A US496756 A US 496756A US 49675665 A US49675665 A US 49675665A US 3391549 A US3391549 A US 3391549A
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United States
Prior art keywords
control device
selector control
circular knitting
strip
knitting machines
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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
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US496756A
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English (en)
Inventor
Fontaine Leon
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.)
FN Herstal SA
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FN Herstal SA
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Publication date
Application filed by FN Herstal SA filed Critical FN Herstal SA
Application granted granted Critical
Publication of US3391549A publication Critical patent/US3391549A/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/74—Pattern drums
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics

Definitions

  • the present invention relates to improvements in the selector control device for circular knitting machines belonging to the type comprising a pin-carrier drum and a sliding strip creel in radial alignment with respect to the needle-carrier cylinder of the machine.
  • each strip of a creel can slide longitudinally in the latter when a pin of the corresponding pin-carrier drum engages an extremity of aforesaid strip, the other extremity of the latter then being placed in the projecting trajectory provided for this purpose on the selectors.
  • Each one of said pin-carrier drums carries out a step-by-step rotary motion about its axis.
  • the object of the present invention is to do away with this disadvantage.
  • it suggests an improved creel in which a plurality of strips have an additional degree of freedom by means of which they are enabled to occupy an intermediate position before they are brought into active position by the corresponding pins of the pincarrying drum, this intermediate position diminishing the stroke which is needed for bringing said strip into active position during the withdrawal into either position of one or several other strips, in such a manner that the dead time during the change is considerably reduced.
  • FIGURE 1 is a diagrammatic perspective view of a circular knitting machine head equipped with selector control devices according to the present invention
  • FIGURE 2 is an end view of an improved creel conforming to the present invention
  • FIGURE 3 is a cross-section along the line III-III of FIGURE 2;
  • FIGURE 4 is a view in the direction of arrow F4 of FIGURE 2;
  • FIGURE 5 illustrates on an enlarged scale, a detail of the creel according to FIGURES 2-4;
  • FIGURES 6, 7 and 8 illustrate diagrammatically the operation of the selector control device according to the present invention.
  • a type of machine in which the selector control device according to the present invention is intended to be used comprises for instance a needle-carrier cylinder 1 surrounded by an envelope 2 in the cylindrical surface of which windows 3 are provided. Facing each one of said windows 3, there are several aligned devices radially disposed with respect to cylinder 1 and each consisting of a creel 4 with sliding blades and a pin-carrying drum 5.
  • Each of the latter well known as such, comprises a ratchet wheel 6 capable of being driven step-by-step by an appropriate device 7.
  • Each creel 4 consists of a base plate 8 carrying four uprights 91011 and 12 respectively, capped by a top plate 13.
  • the faces pointing toward the inside of the uprights 9-12 are provided with a plurality of slots 14 into which are inserted the sliding strips 15.
  • aforesaid lower strips have an extra degree of freedom which enables them to carry out a slight lateral rocking motion for which purpose the eight corresponding slots of upright 10 are made slightly deeper, as illustrated in 22.
  • This rocking motion of the lower strips 15 is controlled by a comb-like spring 23 fastened onto said upright 10 by means of clamping screws 24.
  • the amplitude of the lateral rocking motion of the strips 15 can be limited by an adjustable stop consisting of a metal strip 25 which has, in the vicinity of its ends, oblong holes 26, the strip in question being fastened onto the rear face of aforesaid upright 10 by means of clamping screws 27 passing through said oblong holes 26.
  • the selector control device described above operates in the following way: when a pin 28 (FIGURE 6) engages the slanting end 29 of a strip 15, the latter is tipped sideways and bears against the stop 25. At this moment, another pin 28' which still engages a strip 15' to be brought back into the idle position, is at the extreme limit of the heel of that strip (FIGURE 8). When pin 28 rotates further, it pushes strip 15 forward, whereby the latter is then guided for instance by said stop 25. In this way, the dead time between the exchange of sliding strips is reduced to the very minimum, which makes it possible to obtain a perfect junction of the pattern, especially in the lower part of the leg, at the top of the heel of the knitted sock.
  • each creel consists of a base plate, four uprights carried by said base plate and a top plate covering said uprights, the inwardly directed faces of said uprights having a series of slots accommodating said sliding strips, a plurality of slots in one of said uprights being deeper than the other slots, and springs engaging the strips located in said deeper slots and tending to push the strips out of the slots.
  • a selector control device consist of a single comb-like part made of steel spring.
  • Selector control device according to claim 1, further comprising an adjustable stop, the superior degree 3 4 of freedom of the strips engaged in said deep slots being References Cited controlled by said adjustable stop.
  • UNITED STATES PATENTS 4 Selector control device according to claim 3,
  • said adjustable slot consists of a metal strip pro- 2,067,877 1/1937 Lawson et a1 66 50 vided near its ends with two oblong holes, said device 5 6 3 2 h u 1 II! furt er compnsm two clamping screws extending thro gh 3,229,482 1/1966 Farmer said oblong holes, whereby this strip is fastened onto the side face of said upright provided with deep slots, by said WM.
  • CARTER REYNOLDS Primary Examiner clamping screws.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US496756A 1965-09-06 1965-10-18 Selector control device for circular knitting machines Expired - Lifetime US3391549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE669215A BE669215A (enrdf_load_stackoverflow) 1965-09-06 1965-09-06

Publications (1)

Publication Number Publication Date
US3391549A true US3391549A (en) 1968-07-09

Family

ID=3847883

Family Applications (1)

Application Number Title Priority Date Filing Date
US496756A Expired - Lifetime US3391549A (en) 1965-09-06 1965-10-18 Selector control device for circular knitting machines

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US (1) US3391549A (enrdf_load_stackoverflow)
BE (1) BE669215A (enrdf_load_stackoverflow)
ES (1) ES330932A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541254A (en) * 1982-06-18 1985-09-17 Terrot Strickmaschinen Gmbh Needle selector device for multi-system knitting machine
USD962299S1 (en) * 2019-06-12 2022-08-30 Santoni S.P.A. Textile machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2067877A (en) * 1934-01-10 1937-01-12 Hemphill Co Knitting machine
US2199636A (en) * 1935-12-31 1940-05-07 Hemphill Co Knitting machine
US2814937A (en) * 1956-02-17 1957-12-03 Wildman Jacquard Co Pattern means for knitting machines
US3229482A (en) * 1963-04-10 1966-01-18 Wildt Mellor Bromley Ltd Patterning mechanism for knitting machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2067877A (en) * 1934-01-10 1937-01-12 Hemphill Co Knitting machine
US2199636A (en) * 1935-12-31 1940-05-07 Hemphill Co Knitting machine
US2814937A (en) * 1956-02-17 1957-12-03 Wildman Jacquard Co Pattern means for knitting machines
US3229482A (en) * 1963-04-10 1966-01-18 Wildt Mellor Bromley Ltd Patterning mechanism for knitting machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541254A (en) * 1982-06-18 1985-09-17 Terrot Strickmaschinen Gmbh Needle selector device for multi-system knitting machine
USD962299S1 (en) * 2019-06-12 2022-08-30 Santoni S.P.A. Textile machine

Also Published As

Publication number Publication date
ES330932A1 (es) 1967-09-16
BE669215A (enrdf_load_stackoverflow) 1965-12-31

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