US3220221A - Pivoted latch knitting needle - Google Patents

Pivoted latch knitting needle Download PDF

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Publication number
US3220221A
US3220221A US191197A US19119762A US3220221A US 3220221 A US3220221 A US 3220221A US 191197 A US191197 A US 191197A US 19119762 A US19119762 A US 19119762A US 3220221 A US3220221 A US 3220221A
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US
United States
Prior art keywords
needle
hook
latch
gauge
width
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
US191197A
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English (en)
Inventor
William E Sheeler
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.)
Textile Machine Works
Original Assignee
Textile Machine Works
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 Textile Machine Works filed Critical Textile Machine Works
Priority to US191197A priority Critical patent/US3220221A/en
Priority to GB13023/63A priority patent/GB981975A/en
Priority to DE19631585399 priority patent/DE1585399A1/de
Priority to US434162A priority patent/US3255811A/en
Application granted granted Critical
Publication of US3220221A publication Critical patent/US3220221A/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
    • 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

  • This invention relates to pivoted latch needles for knitting machines and more particularly to an improvement in the structure of the head or hook of such needles.
  • the upper or head end of the needle is provided with an overhanging hook having a circular cross section which must be as little as nineto ten-thousandths of an inch in diameter for the known fine gauge machines.
  • the needle is raised during which a previously formed stitch opens the latch of the needle and is cleared below the lower end thereof and yarn for a new stitch is laid over the needle between the hook and the open latch.
  • the needle is then lowered to form the new stitch during which the previously formed stitch closes the latch over the tip of the hook thereby permitting the latter stitch to be knocked over or oif the head of the needle.
  • Another object is to provide a pivoted latch needle with a hook having a substantially rectangular cross section, the width of the rectangular section corresponding to the normal permissible width of the hook of the needle and the height of the rectangular section being greater than the normal width of the hook.
  • a further object of the invention is to provide a method of forming a needle having a butt at one end thereof, and a hook at the other end thereof which is adapted to be closed by a pivoted latch, said method including the steps of forming the needle blank from material having a thickness greater than that normal for .the needle, reducing the material of the upper end portion of the blank from which the hook is to be formed in such a way that it becomes circular in cross section and has a diameter which is greater than the normal diameter of the material of the hook, bending the upper end portion to form the hook, and pressing the sides of the hook to change the cross-sectional shape of the material thereof from a circular to a rectangular shape having a width corresponding to the normal diameter of the material of the hook and a height which is greater than the normal diameter of the material of the hook.
  • FIGURE 1 is a side view on an enlarged scale of a pivot latch needle according to the instant invention
  • FIG. 2 is a view on an enlarged scale of the upper or hook end of the needle at one stage of its formation
  • FIG. 3 is a cross-sectional view taken along the line and in the direction of the arrows 3-3 of FIG. 2;
  • FIG. 4 is a view on an enlarged scale of the hook of the needle during another stage in its formation
  • FIG. 5 is a view similar to FIG. 4 illustrating a further stage in the formation of the hook of the needle
  • FIG. 6 is a view as seen from the right of FIG. 5;
  • FIG. 7 is a cross-sectional view taken along the line and in the direction of the arrows 77 of FIG. 5.
  • FIG. 1 of the drawing there is shown a needle 10 having a shank portion 11, a butt 12 at the lower end of the shank, a hook 15 at the upper end of the shank, and a latch 16 mounted for pivotal movement adjacent to and adapted to cover the free end or tip of the hook.
  • the needle which is referred to hereinafter as gauge for purposes of comparison, is punched or blanked out of flat metallic stock having a thickness of twelve-thousandths of an inch with the butt and shank being formed of varying widths to strengthen these portions against both breaking and bending stresses during use.
  • the upper end is usually swaged or otherwise reduced to a circular cross-sectional shape of a diameter which is approximately nine-thousandths of an inch, the portion of the shank adjacent the upper end is shaped to receive the pivoted latch and the upper end is then bent to form the hook 15.
  • Needles as described above are used in circular knitting machines for the manufacture of fine gauge womens hosiery. Such machines normally have a cylinder diameter of 3% inches, the cylinders being slotted to receive 400 or more needles.
  • the machines also comprising a sinker-head supporting a series of sinkers, one sinker being interposed between each adjacent pair of needles.
  • the needle is raised to a high clearing level and yarn is laid over the needle between the hook 15 and latch 16 which is at this time in open position as indicated in FIG. 1.
  • the needle is then lowered the yarn is caught in the hook to be drawn or measured over the sinkers to form a stitch.
  • the newly formed stitch is held by the sinkers and stripped downwardly along the needle to open the latch, if it has been closed, and as the needle continues to rise the new stitch is cleared below the end of the open latch and onto the shank of the needle.
  • the needle is again lowered to form the yarn into a new stitch and draw it through the previously formed stitch.
  • the previously formed stitch rides upwardly along the needle to close the latch over the tip of the hook and as the needle continues its downward movement to its lowest position the previously formed stitch passes upwardly over the closed latch and is knocked over the top of needle.
  • the maximum permissible width, i.e. the diameter in the conventional needle described above, of the material of the hook is limited.
  • the diameter of the material of the hook for the different fine needle gauges approximates the permissible diameter for the needle count in which a needle of that gauge is to be employed.
  • the normal width In 80 gauge needles usually employed in such machines such normal width is nine-thousandths of an inch as previously mentioned.
  • the blank of the needle of the instant invention is preferably punched out of sheet material thicker than that normally used for a needle of such gauge, e.g. having a thickness of thirteen-thousandths of an inch which is the normal thickness of the material from which a coarser or 75 gauge needle is formed.
  • the upper portion of the needle blank from which the hook 15 is to be formed is reduced by swaging to a circular cross-sectional shape of a diameter, indicated at A in "FIG. 2, of approximately eleven-thousandths of an inch.
  • the sides of the hook are flattened by pressing or the like to change the cross-sectional shape of the material thereof to substantially a rectangle (FIGS. 6 and '7) having a width indicated at B of approximately nine-thousandths of an inch which corresponds to the normal cross-sectional diameter of material of the hook of the usual 80 gauge needle as above set forth and the resulting displacement of material caused by the pressing action acts to increase the vertical dimension or height of the rectangular area, indicated by the dimension C in FIG. 7, from its original dimension of eleven-thousandths of an inch to approximately tWelve-thousandths of an inch.
  • a needle of a predetermined gauge in which the thickness of the shank portion is slightly greater than the normal thickness of the shank for the same gauge needle and in which the material of the hook portion is reshaped from a circular cross section to a substantially rectangular cross section having a width which corresponds to the normal permitted cross-sectional diameter of the hook for a needle of this gauge and a height which is greater than the normal cross-sectional diameter of the hook.
  • a pivoted latch knitting needle of a predetermined gauge having a shank, a butt at one end of said shank and a hook at the other end of said shank, and a pivoted latch for closing said hook, said shank and butt having a width between the sides thereof which is greater than the normal width of said needle of predetermined gauge, and said hook being substantially rectangular in cross section, the Width of said rectangle corresponding substantially to the normal width of said hook of said needle of predetermined gauge and the height of said rectangle being greater than said width.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US191197A 1962-04-30 1962-04-30 Pivoted latch knitting needle Expired - Lifetime US3220221A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US191197A US3220221A (en) 1962-04-30 1962-04-30 Pivoted latch knitting needle
GB13023/63A GB981975A (en) 1962-04-30 1963-04-02 Pivoted latch knitting needle
DE19631585399 DE1585399A1 (de) 1962-04-30 1963-04-09 Zungennadel
US434162A US3255811A (en) 1962-04-30 1965-01-19 Pivoted latch knitting needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191197A US3220221A (en) 1962-04-30 1962-04-30 Pivoted latch knitting needle

Publications (1)

Publication Number Publication Date
US3220221A true US3220221A (en) 1965-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US191197A Expired - Lifetime US3220221A (en) 1962-04-30 1962-04-30 Pivoted latch knitting needle

Country Status (3)

Country Link
US (1) US3220221A (de)
DE (1) DE1585399A1 (de)
GB (1) GB981975A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712082A (en) * 1969-09-03 1973-01-23 A Kohorn Dial and cylinder knitting machine having self-frictioning needles
US3748875A (en) * 1970-05-20 1973-07-31 Vyzk Ustav Pletarsky Working element of a knitting machine provided with at least one butt
US3994145A (en) * 1974-02-05 1976-11-30 Agula S.A. Knitting-machine needle
CN113355800A (zh) * 2021-06-28 2021-09-07 宁波裕人智能纺织机械有限公司 一种织针、包含该织针的针织机及其使用方法
US11624136B1 (en) 2017-05-26 2023-04-11 Feather W. King Serger seam hook for tucking thread tails

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133266C2 (de) * 1981-08-22 1988-12-22 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Strick- oder Wirkmaschinen
DE3900162C1 (en) * 1989-01-04 1990-03-08 Shibata Needle Mfg. Co., Ltd., Nara, Jp Latch needle for knitting machines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US140150A (en) * 1873-06-24 Improvement in the manufacture of latch-needles
US140611A (en) * 1873-07-08 Improvement in the manufacture of knitting-machine needles
US485021A (en) * 1892-10-25 Knitting-machine needle
US2685787A (en) * 1952-01-10 1954-08-10 Kidde Mfg Co Inc Knitting machine needle
US2854836A (en) * 1955-02-14 1958-10-07 Joseph L Morris Knitting machine needle hook

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US140150A (en) * 1873-06-24 Improvement in the manufacture of latch-needles
US140611A (en) * 1873-07-08 Improvement in the manufacture of knitting-machine needles
US485021A (en) * 1892-10-25 Knitting-machine needle
US2685787A (en) * 1952-01-10 1954-08-10 Kidde Mfg Co Inc Knitting machine needle
US2854836A (en) * 1955-02-14 1958-10-07 Joseph L Morris Knitting machine needle hook

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712082A (en) * 1969-09-03 1973-01-23 A Kohorn Dial and cylinder knitting machine having self-frictioning needles
US3748875A (en) * 1970-05-20 1973-07-31 Vyzk Ustav Pletarsky Working element of a knitting machine provided with at least one butt
US3994145A (en) * 1974-02-05 1976-11-30 Agula S.A. Knitting-machine needle
US11624136B1 (en) 2017-05-26 2023-04-11 Feather W. King Serger seam hook for tucking thread tails
CN113355800A (zh) * 2021-06-28 2021-09-07 宁波裕人智能纺织机械有限公司 一种织针、包含该织针的针织机及其使用方法

Also Published As

Publication number Publication date
DE1585399A1 (de) 1970-08-06
GB981975A (en) 1965-02-03

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