US3315495A - Arrangement for transferring yarn loops between needles of a knitting machine - Google Patents

Arrangement for transferring yarn loops between needles of a knitting machine Download PDF

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Publication number
US3315495A
US3315495A US419425A US41942564A US3315495A US 3315495 A US3315495 A US 3315495A US 419425 A US419425 A US 419425A US 41942564 A US41942564 A US 41942564A US 3315495 A US3315495 A US 3315495A
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US
United States
Prior art keywords
needle
needles
loop
holder
bed
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
US419425A
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English (en)
Inventor
Kuhnert Gottfried
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.)
Henkel Dorus GmbH and Co KG
Original Assignee
Dr Rudolf Schieber GmbH and Co KG
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 Dr Rudolf Schieber GmbH and Co KG filed Critical Dr Rudolf Schieber GmbH and Co KG
Application granted granted Critical
Publication of US3315495A publication Critical patent/US3315495A/en
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Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/10—Flat-bed knitting machines with independently-movable needles with provision for narrowing or widening to produce fully-fashioned goods
    • 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
    • D04B15/02—Loop-transfer points
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/24—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
    • D04B7/28—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics with stitch patterns

Definitions

  • the primary object of the invention is the provision of a transfer arrangement for yarn loops between the knitting needles of the same bed which is simple and requires but very simple movements of the needles and loop holders.
  • the invention provides a knitting machine with a set of needles laterally juxtaposed in a needle bed for longitudinal reciprocating movement between a' rest position and a raised position.
  • the shank of each needle terminates in a hook-shaped head and has a shoulder spaced from the head.
  • a face of the shoulder transverse of the direction of needle elongation faces toward the head.
  • a normally closed eye approximately aligned with the shoulder face is formed on the needle shank by resilent means. The eye is adapted to open resiliently in a direction toward the head.
  • the machine has elongated loop holders formed with throats in corresponding end portions.
  • Means are provided for moving each holder in the direction of elongation thereof between a retracted and an operative position, and also for moving the holder transversely of its direction of elongation between a plurality of positions of alignment in which it is longitudinally aligned with the eyes of respective needles when the same are in the aforementioned raised position thereof.
  • Each loop holder encloses an acute angle with the aligned needle in all the afore-mentioned positions of the holder and the needle.
  • FIG. 1 shows a knitting needle of the invention in side elevation
  • FIG. 3 shows a loop holder of the invention in rear elevation
  • FIG. 4 is a side elevational view of the holder of FIG. 3;
  • FIG. 5 is a fragmentary view of a two-bed knitting machine of the invention in side-elevational section;
  • FIGS. 6 and 7 show the device of FIG. 5 in different operative positions
  • FIG. 8 shows the device of FIG. 5 in side elevational section in a plane parallel to, but oflset from that of FIG. 5.
  • FIGS. 1 and 2 there is seen a latch needle 1 which has a loop-supporting shoulder 2 and a butt 1c.
  • the shoul- 3,315,495 Patented Apr. 25, 1967 der has a flat face which is perpendicular to the longitudinal needle axis, faces toward the needle hook 1a, and is spaced from the needle latch 1b in a direction away from the hook in all operative positions of the latch. This direction will be referred to as downward for the convenience of the description.
  • a leaf spring 3 is riveted to the shank of the needle 1 below the shoulder 2 and extends upward along a flank of the needle which is parallel to the plane of latch movement. A portion of the spring 3 transversely aligned with the flat face of the shoulder 2 is offset. The portion of the spring 3 above the face of the shoulder 2 is narrow and terminates in a pointed tip 3c.
  • the offset portion of the spring 3 and the flank of the needle 1 define a normally closed eye 3a.
  • the portion of the spring 3 above the fastening rivets 3b, but below the face of the shoulder 2 is bent angularly away from the needle flank.
  • the next higher spring portion is angularly bent into a plane parallel to the needle axis, and the top portion of the spring gradually approaches the needle flank in a shallow arc.
  • the tip 3c of the needle 3 is normally received in a recess of the needle flank.
  • the butted loop holder 4 shown in FIGS. 3 and 4 is provided with a leaf spring 5 which is elongated parallel to the longitudinal holder axis, and is riveted to the holder shaft at 4a near the butt 4b.
  • the spring extends from the butt 4 along most of the holder shaft to the throat 4c at the hook-shaped working end 4d of the holder.
  • a portion 5a of the spring spaced a short distance from the free spring end 4d and the holder throat 4c is arcuately offset and defines a funnel-shaped passage with a recess 6 in the flank of the holder 4.
  • a needle may be guided in the passage which tapers in the direction in which the throat 4c is open.
  • FIGS. 5 to 8 The flat-bed knitting machine in which needles and loop holders of the type illustrated in FIGS. 1 to 4 may be employed is illustrated in FIGS. 5 to 8 only to the extent needed for an understanding of this invention, the remainder of the machine being essentially conventional in structure.
  • Knitted fabric 7 is dicharged downwardly from the knitting area at the open apex of the V-shape.
  • the last-formed yarn loops 7a, 7b, of the fabric are retained in the hooks of two needles 1 which represent the two sets of parallel needles in the two beds 8, 9.
  • the needles are longitudinally movable in respective guide channels of the needle beds and are shown in the rest position. Their latches are open.
  • Two loop holder beds 10, 11 are arranged above the needle beds 8, 9 respectively, and are movable perpendicularly to the plane of the drawing along the associated sets of needles.
  • Loop holders 4 are arranged in the loop holder beds 10, 11 for longitudinal movement.
  • the longitudinal axes of the needles in each bed enclose an acute angle with the corresponding axes of the associated loop holders. While an angle of approximately 50 has been shown in the drawing, it will be understood that the angle maybe as great as about
  • the yarn loop 7a moves downward over the latch of the needle until it is caught by the shoulder 2.
  • the loop is longitudinally expanded by the movement of the shoulder 2,- and is also laterally enlarged by the offset portion of the spring 3.
  • the associated loop holder 4 is next moved forward by its bed 10 until its hook-shaped free end enters the eye between the spring 3 and the flank 2 of the needle 1.
  • the holder bed 10 is then shifted transversely of the needle axes until the holder 4 is aligned with an adjacent needle 1. More specifically, the funnel-shaped guide passage between the flank of the holder 4 and the attached leaf spring 5 is aligned with the axis of the needle 1. When the latter is raised, as shown in FIG. 8, it is guided by the upwardly tapering passage into the loop of yarn to be transferred. The passage is expanded upon entry of the needle head which resiliently deflects the spring 5. The loop of yarn is retained by the needle 1 when the holder 4 is next withdrawn, in a manner not further illustrated, to a retracted position corresponding to that of FIG. 5,
  • the loop formation on the partly illustrated knitting machine is not in itself relevant to this invention, and has neither been illustrated, nor will it be described.
  • the actuating machanism which causes the afore-described longitudinal movements of the needles and loop holders is represented only by the butts 1c and 4b best seen in FIGS.
  • the needles in the needle bed 9 cooperate with the loopholders in the loop holder bed 11 in the same manner as described hereinabove with reference to the beds 8 and 10. It will be understood, however, that the invention is not limited to flat bed knitting machines having two needle beds.
  • each needle having a shank terminating in a hook-shaped head and :a shoulder on said shank
  • each needle resilient means on each needle defining an eye substantially aligned with said face transversely of said direction, said eye being normally closed and adapted to open resiliently toward said head;
  • each loop holder respectively associated with said needle beds, and elongated in the direction of elongation of the needles in the associated needle bed, each loop holder having two end portions and being formed with a throat in one of said end portions;
  • said resilient means including an elongated leaf spring having one end portion remote from said head and fixedly fastened to said shank, and another end portion near said head and normally engaging said shank under the resilient pressure thereof.
  • resilient means on said loop holder defining a guide passage adjacent said throat, one of said needles being longitudinally aligned with said guide passage when said loop holder is in the operative position while being in a position of alignment, said guide passage being adapted to open laterally in a direction from the other end portion toward said one end portion.
  • said guide passage tapering in the, direction of movement of an aligned needle from the rest position to the raised position thereof.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US419425A 1963-12-23 1964-12-18 Arrangement for transferring yarn loops between needles of a knitting machine Expired - Lifetime US3315495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1000368 1963-12-23

Publications (1)

Publication Number Publication Date
US3315495A true US3315495A (en) 1967-04-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US419425A Expired - Lifetime US3315495A (en) 1963-12-23 1964-12-18 Arrangement for transferring yarn loops between needles of a knitting machine

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US (1) US3315495A (fr)
CH (1) CH420467A (fr)
FR (1) FR1417908A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423204A (en) * 1992-12-17 1995-06-13 Shima Seiki Mfg., Ltd. Transferring jack of a flat knitting machine
US20050241343A1 (en) * 2002-05-15 2005-11-03 Shima Seiki Mfg., Ltd. Transfer jack and weft knitting machine having the same, and stitch transfer method using transfer jack

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2986242B1 (fr) * 2012-01-26 2014-02-14 Steiger Participations Sa Procede de tricotage pour machine a tricoter rectiligne et machine a tricoter rectiligne

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE5745C (de) * P. BERANGER in Evreux Neuerungen an Drillsäemaschinen
DE68023C (de) * R. POPP und R. WEISS in Penzing bei Wien, Hauptstr. 23 Einrichtung zur selbstthätigen Herstellung von Links- und Linkswaaren auf Lambschen Strickmaschinen
US885150A (en) * 1906-02-24 1908-04-21 Powell Knitting Company Transferring device for knitting-machines.
US1467239A (en) * 1920-11-05 1923-09-04 Desachy Ernest Loop-forming mechanism for knitting machines
GB419601A (en) * 1933-05-11 1934-11-12 Frederick George Coleman Improvements in or relating to knitting needles and knitting machines
US2397456A (en) * 1936-05-09 1946-03-26 Jacquard Knitting Machine Co Inc Transferring stitches
US2442442A (en) * 1943-10-04 1948-06-01 Mellor Bromley & Co Ltd Machine for producing knitted fabric
US2648583A (en) * 1949-11-19 1953-08-11 Columbus Show Casc Company Tiltable merchandise supporting means for store-employed display
US3102404A (en) * 1960-02-23 1963-09-03 Dubied & Cie Sa E Knitting machine and more particularly a flat knitting machine having needle beds and needles for producing fabric with narrowings and with open work patterns
AT230010B (de) * 1958-03-15 1963-11-11 Schieber Universal Maschf Vorrichtung zum Übertragen von Maschen beim Mindern, Zunehmen oder Mustern an Strickmaschinen

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE5745C (de) * P. BERANGER in Evreux Neuerungen an Drillsäemaschinen
DE68023C (de) * R. POPP und R. WEISS in Penzing bei Wien, Hauptstr. 23 Einrichtung zur selbstthätigen Herstellung von Links- und Linkswaaren auf Lambschen Strickmaschinen
US885150A (en) * 1906-02-24 1908-04-21 Powell Knitting Company Transferring device for knitting-machines.
US1467239A (en) * 1920-11-05 1923-09-04 Desachy Ernest Loop-forming mechanism for knitting machines
GB419601A (en) * 1933-05-11 1934-11-12 Frederick George Coleman Improvements in or relating to knitting needles and knitting machines
US2397456A (en) * 1936-05-09 1946-03-26 Jacquard Knitting Machine Co Inc Transferring stitches
US2442442A (en) * 1943-10-04 1948-06-01 Mellor Bromley & Co Ltd Machine for producing knitted fabric
US2648583A (en) * 1949-11-19 1953-08-11 Columbus Show Casc Company Tiltable merchandise supporting means for store-employed display
AT230010B (de) * 1958-03-15 1963-11-11 Schieber Universal Maschf Vorrichtung zum Übertragen von Maschen beim Mindern, Zunehmen oder Mustern an Strickmaschinen
US3102404A (en) * 1960-02-23 1963-09-03 Dubied & Cie Sa E Knitting machine and more particularly a flat knitting machine having needle beds and needles for producing fabric with narrowings and with open work patterns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423204A (en) * 1992-12-17 1995-06-13 Shima Seiki Mfg., Ltd. Transferring jack of a flat knitting machine
US20050241343A1 (en) * 2002-05-15 2005-11-03 Shima Seiki Mfg., Ltd. Transfer jack and weft knitting machine having the same, and stitch transfer method using transfer jack
US7036341B2 (en) * 2002-05-15 2006-05-02 Shima Seiki Mfg., Ltd. Transfer jack and weft knitting machine having the same, and stitch transfer method using transfer jack

Also Published As

Publication number Publication date
FR1417908A (fr) 1965-11-12
CH420467A (de) 1966-09-15

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