US3712084A - Jacquard pattern controller structure - Google Patents

Jacquard pattern controller structure Download PDF

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Publication number
US3712084A
US3712084A US00191179A US3712084DA US3712084A US 3712084 A US3712084 A US 3712084A US 00191179 A US00191179 A US 00191179A US 3712084D A US3712084D A US 3712084DA US 3712084 A US3712084 A US 3712084A
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US
United States
Prior art keywords
holder
selector
grooves
jacks
cover member
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
US00191179A
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English (en)
Inventor
F Kuhn
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.)
Fouquet Werk Frauz and Planck
Original Assignee
Fouquet Werk Frauz and Planck
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 Fouquet Werk Frauz and Planck filed Critical Fouquet Werk Frauz and Planck
Application granted granted Critical
Publication of US3712084A publication Critical patent/US3712084A/en
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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
    • 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

Definitions

  • ABSTRACT A substantially cylindrical drum-shaped holder has axially extending grooves cut therein.
  • the holder is capped off by a cover which has a resilient insert therein, so that pattern jacks can be individually inserted into the grooves, and snapped in place by pressure against the resilient insert, with the cover remaining on the cylindrical holder.
  • the present arrangement relates to a Jacquard pattern controller structure for textile machinery, and more particularly for knitting machines of the circular knitting machine type, and which is so arranged that individual selector jacks can easily be removed and replaced or re-inserted into the pattern holder.
  • the invention will be described in general, as applied to a Jacquard pattern selector drum of the type used in circular knitting machines; to control the cylinder or dial needles of the machine.
  • the selector jacks which are inserted in selector drums in Jacquard-type circular knitting machines usually are inserted into a cylindrical body, which has grooves cut therein.
  • the selector jacks are clamped into the grooves in radial, as well as in longitudinal direction, so that the selector jacks are positively seated in the pattern holder, and aligned both with respect to circumferential position, circumferential projection, as well as with longitudinal, that is axial relation to the Jacquard holder or drum.
  • the pattern is to be changed, so that other selector jacks are to be inserted, it has been customary to remove the cover of the Jacquard selector drum which, usually, is secured by screws.
  • selector holder drums are provided at their lower end with a circular groove into which the jacks are inserted, so that they are securely held against axial shifting movement.
  • the selector jacks are held together radially by a circular spring which is inserted, after placing of all the jacks, in a suitably arranged groove cut into the selector jacks and continued along the circumference of the jack holder or drum. Placing selector jacks into such an arrangement requires accurate manufacture of the selector jack drum, permitting hardly any tolerance at all. If the selector jacks are not accurate as to length, or slightly deviate from nominal dimensions, vibrations may arise which interfere with proper operation of the selection mechanism, and cooperation of the selector jacks .with the remainder of the machine, and particularly during pattern selection.
  • selector jack holders or drums
  • selector jack holders or drums
  • the lower end of the drum is shaped to accept a selector jack, the upper end of the drum being closed off by a cover which has a resiliently, yieldable, deformable insert therein, against which the selector jacks can be located, to be then snapped into position, the jacks pressing during the snapping-in against the yieldable, deformable material, which is deformed briefly during this step, and then reverts to its normal size, to securely hold the selector jacks in proper position.
  • the yieldable insert is an elastomer, such as plastic or the like or, in a simple form merely a rubber O-ring.
  • the arrangement according to the present invention accepts selector jacks which may be slightly outsiz'e, and the yieldable ring compensates for excessive tolerances.
  • Individual selector jacks can be inserted by hand, and without any special tools and still they will seat positively, even if the specific selector jack is offsize.
  • a spacer ring can be inserted between the cover in which the elastomer ring is inserted and the actual end face of the Jacquard selector jack holder, or drum, so that even selector jacks which are excessively long and oversize can be accepted without deformation; the yieldable, deformable insert will hold these selector jacks, as well as some which are somewhat shorter, in positively seated engagement in the drum holder.
  • the spacer can be an integral part of the cover in which the elastomer is inserted.
  • FIGURE is a schematic, partly sectional longitudinal view through a circular selector jack holder drum.
  • the holder drum is connected to a gear or other transport wheel 1, which switches or indexes the position of the drum in synchronism with the rotation of the knitting machine with which it is to be associated, and as determined by the pattern to be knitted.
  • Gear 1 is secured to a body 3 which is formed with a number of axially extending, longitudinal grooves 4 into which selector jacks 5 are inserted.
  • the bottom of the drum assembly formed of body 3 and gear 1 is formed with a hook-like end, in order to engage over a re-entrant notch 2 formed in the bottom of the selector jacks, so that the longitudinal alignment of the selector jacks at the bottom end of the drum is positively given while, at the same time, the selector jacks 5 are prevented from moving outwardly at their lower end.
  • the top of the selector jack drum assembly formed of ring 1 and body 3 is close off by a cover 6 which has an elastic insert 8 located therein, for example in the form of a rubber O-ring.
  • the insert 8 is located therein in such a manner that it can yield, but cannot fall out, for example by being placed in a very shallow groove.
  • the cover 6 is spaced from the axial end of the drum assembly by means of a spacer 10, which can be unitary with the cover; the O-ring 8 is located behind a projecting overhang of the cover which may be integral, as shown or, with smaller covers already available, may be added as a separate sleeve.
  • the selector jack drum structure is filled with selector jacks directly by hand, and no tools are needed or required.
  • the tip 9 of a selector jack is slipped under the cover, and behind the O-ring, and then the selector jack is tilted inwardly, pressing against the O- ring to yieldingly deform the O-ring, until the holding stop 2 at the bottom, with its notch, slips over the inclined projection formed on the bottom of the drumgear assembly (see the FIGURE).
  • the selector jack is then securely pressed downwardly, in the direction of the indexing wheel or gear, and the selector jack is completely and positively seated, the notch at the bottom of the selector jack seating on the projection of the lower part of the selector jack assembly, and the top being yieldingly and securely held by the O-ring.
  • Small differences in length of the selector jacks are compensated by the O-ring; the yielding O-ring also permits omission of selector jacks from the drum, without loss of tightness of seating; it is possible to use only a single selector jack in a drum of the illustrated construction, without loss of reliable and positive seating of the single selector jack, and without additional tightening arrangements being necessary.
  • Selector jacks can be independently and individually changed without removing the drum from the machine, or without disassembling the drum in any way which would additionally cause loss of reliable location and placement of other selector jacks already in the drum, and not desired to be replaced.
  • the remaining selector jacks can be left undisturbed, which, in knitting operations, is a substantial savings in time for operating personnel.
  • Jacquard pattern controller structure Jacquard-type textile machines comprising an elongated substantially drum-shaped holder;
  • selector jack holding means formed at the root of the grooves at one axial end of the holder, the grooves extending to the other axial end of the holder;
  • an elastic, yieldable insert (8) in said cover member located forward of the root of the grooves formed in the holder and extending circumferentially around the cover member to permit placing selected jacks individually in the grooves, tilting them against the yieldable insert during insertion, and locating the jacks in the jack holding means.
  • Structure according to claim 1 including a spacer member (10) located between the cover member (6) and the axial end of the holder to space the cover member, and hence the yieldable insert axially from the ends of the grooves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Knitting Of Fabric (AREA)
US00191179A 1970-12-04 1971-10-21 Jacquard pattern controller structure Expired - Lifetime US3712084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2059645A DE2059645C3 (de) 1970-12-04 1970-12-04 Mustertrommel fur Rundstrick maschinen

Publications (1)

Publication Number Publication Date
US3712084A true US3712084A (en) 1973-01-23

Family

ID=5789945

Family Applications (1)

Application Number Title Priority Date Filing Date
US00191179A Expired - Lifetime US3712084A (en) 1970-12-04 1971-10-21 Jacquard pattern controller structure

Country Status (6)

Country Link
US (1) US3712084A (de)
DE (1) DE2059645C3 (de)
ES (1) ES198129Y (de)
FR (1) FR2117383A5 (de)
GB (1) GB1335286A (de)
IT (1) IT942597B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834188A (en) * 1971-06-08 1974-09-10 J Comas Spring loaded pattern drum for ease of pattern jack insertion
US3895504A (en) * 1973-10-05 1975-07-22 Vyzk Vyvojovy Ustav Vseobe Quickly replaced pattern drum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006839B (en) * 1977-10-13 1982-04-07 Matec Spa Circular knitting machines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1722989A (en) * 1926-03-19 1929-08-06 Camden Safe Deposit Trust Co Knitting machine
US3616655A (en) * 1970-07-10 1971-11-02 Jose M Dalmau Guell Selector drums for circular knitting machines
US3667253A (en) * 1969-03-10 1972-06-06 Norbert Paul Bourgeois Needle selector for circular knitting machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1722989A (en) * 1926-03-19 1929-08-06 Camden Safe Deposit Trust Co Knitting machine
US3667253A (en) * 1969-03-10 1972-06-06 Norbert Paul Bourgeois Needle selector for circular knitting machines
US3616655A (en) * 1970-07-10 1971-11-02 Jose M Dalmau Guell Selector drums for circular knitting machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834188A (en) * 1971-06-08 1974-09-10 J Comas Spring loaded pattern drum for ease of pattern jack insertion
US3895504A (en) * 1973-10-05 1975-07-22 Vyzk Vyvojovy Ustav Vseobe Quickly replaced pattern drum

Also Published As

Publication number Publication date
GB1335286A (en) 1973-10-24
ES198129U (es) 1975-06-01
ES198129Y (es) 1975-10-16
IT942597B (it) 1973-04-02
DE2059645B2 (de) 1973-03-01
FR2117383A5 (de) 1972-07-21
DE2059645A1 (de) 1972-06-15
DE2059645C3 (de) 1973-09-20

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