US3635177A - Narrow gauge hook bar for tufting machine - Google Patents

Narrow gauge hook bar for tufting machine Download PDF

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Publication number
US3635177A
US3635177A US74378A US3635177DA US3635177A US 3635177 A US3635177 A US 3635177A US 74378 A US74378 A US 74378A US 3635177D A US3635177D A US 3635177DA US 3635177 A US3635177 A US 3635177A
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US
United States
Prior art keywords
slots
needles
hook bar
face
needle
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
US74378A
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English (en)
Inventor
Larry P Gable
Clyde H Langley
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.)
CARD AND CO Inc
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CARD AND CO Inc
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 CARD AND CO Inc filed Critical CARD AND CO Inc
Application granted granted Critical
Publication of US3635177A publication Critical patent/US3635177A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/10—Tufting machines operating with a plurality of needles, e.g. in one row
    • D05C15/12—Tufting machines operating with a plurality of needles, e.g. in one row in more than one row
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/22—Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor

Definitions

  • ABSTRACT A hook bar for a multiple needle-tufting machine having alternating staggered slots in the front and rear faces of the hook bar for receiving loopers in a narrow gauge.
  • Conventional hook bars for multiple needle-tufting machines are long bars extending transversely of the machine below the needles and the base fabric.
  • a conventional hook bar has uniformly spaced slots in its rear face for receiving the loopers which cooperate with the needles to form loops in the yarns carried by the needles.
  • the slots in the rear face of the hook bar must be formed close together.
  • the narrowness of the gauge is limited by the thickness of the walls in the hook bar between the looper slots. As the looper slots are spaced closer together, the walls between them become thinner, and therefore weaker. Furthermore, the walls between the looper slots must be thick enough to support the internally threaded holes formed through the rear face for supporting the screws which retain the loopers in the slots.
  • the hook bar made in accordance with this invention has a rear row of transversely spaced looper slots formed in the rear face of the hook bar and a front row of transversely spaced looper slots formed in the front face of the hook bar.
  • the front and rear slots are preferably equally spaced and staggered so that the loopers are arranged at the same uniform gauge as their cooperating needles.
  • walls between each pair of slots may be twice as thick, for the same uniform gauge, as the walls between slots in the rear face of a conventional hook bar.
  • FIG. 1 is a fragmentary, sectional elevation taken longitudinally through a multiple needle-tufting machine having a hook bar made in accordance with this invention, and disclosing the needles and loopers in operative loop-forming positlons;
  • FIG. 2 is a fragmentary rear elevation of the hook bar and loopers disclosed in FIG. 1;
  • FIG. 3 is a fragmentary top plan view of the hook bar with the loopers removed, taken along the line 3-3 of FIG. 1.
  • FIG. 1 discloses a transverse needle bar in a conventional multiple needle-tufting machine supporting a first row of front uniformly spaced needles 11 and a second row of uniformly spaced rear needles 12 offset preferably midway between the front needles 11, to provide a uniform needle gauge.
  • the needle bar 10 is vertically reciprocated by conventional means, not shown, to cause the front and rear needles 11 and 12 to move between an upper position above the base fabric 13 to a lower position penetrating the base fabric 13 so that the needles will carry yarns, such as yarn 14 through the base fabric 113 to form loops of tufting therein.
  • the base fabric 13 is supported upon a needle plate 15 for movement, by means not shown, in the direction of the arrow of FIG. I, that is, longitudinally from front to rear through the machine.
  • each front needle 11 for forming loops in the yarn 14 is a front looper I7. Also adapted to cooperate with each rear needle 12 to form a loop in a yarn carried by the needle 12 is a rear looper 18.
  • the front looper 17 has a shank 19 of uniform thickness
  • the rear looper 18 has a shank 20 of uniform thickness, and preferably of the same thickness as the shank 19.
  • FIG. 1 discloses the hook bar 22 and the loopers 117 and 18 in their rearmost operative positions for forming the loops with the needles I1 and 12 in their lowermost positions.
  • each front slot 24 Formed in the front face 23 of the hook bar 22 are a plurality of uniformly spaced front slots 24 of uniform thickness, each front slot 24 having a thickness only slightly greater than the thickness of the shank 19 of the front looper 17. Each front slot 24 opens through the front face 23 and is adapted to receive the shank 19 of each front looper 17.
  • each rear slot 25 is of uniform thickness, and only of slightly greater thickness than the thickness of the shank 20 of each rear looper 18.
  • the rear slots 25 also preferably open through the rear face 26 of the hook bar 22 for receiving the shanks 20 of each corresponding rear looper 18.
  • the rear slots 25 are staggered with relation to the front slots 24 so that each rear slot 25 is located longitudinally midway between a pair of front slots 24.
  • Each looper l7 and 18 is retained in :its respective front slot 24 and rear slot 25 by means of the conventional looper retaining screws 28.
  • FIG. 2 clearly shows how the diameter of each screw 28 exceeds the width of each slot 25, and therefore limits the thinness of the walls between the slots 25 in the hook bar 22, as well as the walls between the slots 24.
  • the extra wall thickness between the slots 24and slots 25 obtained in hook bar 22 is also important because, in a conventional hook bar, the walls between the looper slots in a narrow gauge machine can become so thin that they become flexible. When the slot walls become too flexible, the loopers become unstable and cannot be rigidly confined to the uniform needle gauge. Furthermore, flexible slot walls promote vibration of the loopers and unnecessary wear against the needles.
  • a looper mechanism comprising:
  • a hook bar mounted transversely below the plane of the base fabric for longitudinal reciprocable movement to an operative position below said needles, said hook bar having a front face and a rear face,
  • each rear looper will form in operative position a loop in a yarn. carried by a second needle.
  • rear slot being staggered midway between a pair of front slots, so that said front and rear slots are arranged in the same uniform gauge as said needles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Knitting Machines (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Discharge By Other Means (AREA)
US74378A 1970-09-22 1970-09-22 Narrow gauge hook bar for tufting machine Expired - Lifetime US3635177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7437870A 1970-09-22 1970-09-22

Publications (1)

Publication Number Publication Date
US3635177A true US3635177A (en) 1972-01-18

Family

ID=22119235

Family Applications (1)

Application Number Title Priority Date Filing Date
US74378A Expired - Lifetime US3635177A (en) 1970-09-22 1970-09-22 Narrow gauge hook bar for tufting machine

Country Status (4)

Country Link
US (1) US3635177A (it)
JP (1) JPS5527188B1 (it)
DE (1) DE2145305B2 (it)
GB (1) GB1303929A (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878800A (en) * 1972-03-08 1975-04-22 Singer Co Fine gauge tufting machines
US4158339A (en) * 1978-06-22 1979-06-19 Tuftco Corporation Narrow gauge cut pile looper apparatus
US4211176A (en) * 1978-11-15 1980-07-08 Spencer Wright Industries, Inc. Knife block for tufting machines
US20040208697A1 (en) * 2000-11-16 2004-10-21 Sansalone John J. Adsorptive-filtration media for the capture of waterborne or airborne constituents
US9657419B2 (en) 2015-10-01 2017-05-23 Card-Monroe Corp. System and method for tufting sculptured and multiple pile height patterned articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1597733A (en) * 1977-06-30 1981-09-09 Spencer Wright Ind Inc Tufting machine gauge parts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398708A (en) * 1960-07-09 1968-08-27 Lewis Card & Co Inc Needle plate for tufting machine
US3402686A (en) * 1967-09-11 1968-09-24 Carolyn Chenilles Inc Tufting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398708A (en) * 1960-07-09 1968-08-27 Lewis Card & Co Inc Needle plate for tufting machine
US3402686A (en) * 1967-09-11 1968-09-24 Carolyn Chenilles Inc Tufting machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878800A (en) * 1972-03-08 1975-04-22 Singer Co Fine gauge tufting machines
US4158339A (en) * 1978-06-22 1979-06-19 Tuftco Corporation Narrow gauge cut pile looper apparatus
US4211176A (en) * 1978-11-15 1980-07-08 Spencer Wright Industries, Inc. Knife block for tufting machines
US20040208697A1 (en) * 2000-11-16 2004-10-21 Sansalone John J. Adsorptive-filtration media for the capture of waterborne or airborne constituents
US9657419B2 (en) 2015-10-01 2017-05-23 Card-Monroe Corp. System and method for tufting sculptured and multiple pile height patterned articles
US10344413B2 (en) 2015-10-01 2019-07-09 Card-Monroe Corp. System and method for tufting sculptured and multiple pile height patterned articles
US11136702B2 (en) 2015-10-01 2021-10-05 Card-Monroe Corp. System and method for tufting sculptured and multiple pile height patterned articles
US11725320B2 (en) 2015-10-01 2023-08-15 Card-Monroe Corp. System and method for tufting sculptured and multiple pile height patterned articles

Also Published As

Publication number Publication date
DE2145305B2 (de) 1979-10-11
JPS5527188B1 (it) 1980-07-18
DE2145305A1 (it) 1972-03-23
DE2145305C3 (it) 1980-07-03
GB1303929A (it) 1973-01-24

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