US3911700A - Flat knitting machine with yarn change mechanism - Google Patents

Flat knitting machine with yarn change mechanism Download PDF

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Publication number
US3911700A
US3911700A US384250A US38425073A US3911700A US 3911700 A US3911700 A US 3911700A US 384250 A US384250 A US 384250A US 38425073 A US38425073 A US 38425073A US 3911700 A US3911700 A US 3911700A
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US
United States
Prior art keywords
yarn
cam assembly
guides
knitting
knitting machine
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
US384250A
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English (en)
Inventor
Karl Tschumperlin
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.)
Madag Maschinen und Apparatebau Dietikon AG
Original Assignee
Madag Maschinen und Apparatebau Dietikon AG
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Filing date
Publication date
Application filed by Madag Maschinen und Apparatebau Dietikon AG filed Critical Madag Maschinen und Apparatebau Dietikon AG
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Publication of US3911700A publication Critical patent/US3911700A/en
Anticipated expiration legal-status Critical
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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides

Definitions

  • ABSIRACT A flat knitting machine provided with yarn change mechanism and stitch stripper and a cam assembly movable to-and-fro over at least one needle bed as well as with yarn guides located laterally of the needle bed and each associated with a respective yarn, the yarn guides being movable into or out of the knitting position via a control or switch mechanism controlled by the cam assembly movement.
  • the yarn guides brought out of the knitting position can assume a position in which the yarn guide outlet ends are located beneath the start of the cloth.
  • the present invention relates to a flat knitting machine with yarn change mechanism and stitch stripper and with a cam assembly which is movable to-and-fro over at least one needle bed as well as with yarn guides located laterally of the needle bed and each associated with a respective yarn, the yarn guides can be brought into or out of the knitting position by means of a switching or control mechanism controlled by the cam assembly movement.
  • Another and more specific object of the present invention relates to an improved construction of flat knitting machine with a yarn change mechanism and stitch stripper wherein the flat knitting machine is of simple construction and design, and wherein further there is precluded any hindrance of the stitch stripper by nonused yarns or threads.
  • the flat knitting machine of the previously mentioned type is constructed in such a way that the yarn guides which are brought out of the knitting position assume a position in which the outlet ends of such yarn guides are located beneath the start of the cloth or fabric. Since those yarns which are not being used at the moment are always located beneath the plane of movement of the cam assembly, they cannot hinder the stitch stripper.
  • the stitch stripper which is an element which has proven itself in practice, of the cam assembly or carriage can press against the knitted goods or cloth, so that it is not necessary to provide, in addition to the machine or externally of the machine, devices which maintain the knitted goods under tension.
  • FIG. 1 schematically illustrates enough of the essential components of the flat knitting machine of this invention so as to understand the underlying concepts thereof and
  • FIG. 2 is a side elevation of a more detailed view of the storage'assembly of FIG. 1 with yarn guides positioned therein.
  • FIG. 1 there is depicted therein a flat knitting machine constructed according to the teachings of the present invention and wherein for the sake of clarity in illustration only enough of the essential components of the knitting machine have been depicted so as to enable those versed in the art to fully understand the underlying concepts of this development.
  • the illustrated flat-bed knitting machine will be seen to comprise two needle beds 1 and 2 in which there are displaceably mounted standard latch needles.
  • a carriage 5 is arranged above both of the needle beds 1 and 2, and in such carriage there is located a conventional needle camassembly for actuating such needles.
  • the knitting operation occurs by virtue of the to-andfro movement of the carriage 5 over both of the needle beds 1 and 2. There is thus produced a web 3 of the knitted goods or cloth.
  • a conventional stitch stripper 7 At the carriage 5 there is located a conventional stitch stripper 7. This stripper 7 acts upon the knitted cloth or goods, smooths and aligns the same.
  • a support 6 is provided at the carriage 5, this support 6 being extended or ejected during the movement of the carriage 5 at the region of a control rail which is mounted at the needle beds 1 and 2.
  • the support 6 carries a holder at which during knitting there is retained a small yarn guide shell or collar 8.
  • Exactly similarly constructed yarn guide shells 9, l0 and 11 are located at this time at a storage 12. All four yarn guide shells 8, 9, 10, 11 guide a respective one of different colored yarns or threads, with which there is to be alternately knitted and which are withdrawn from the supply spools 13 or the like.
  • the yarn guide element namely the yarn guide shell 8 carries a yarn or thread 4 and is transferred from holders 14 in the manner of a type of relay transfer operation.
  • the holders 14 are located in pairs at each of four carrier or support levers l5, l6, l7 and 18 arranged at the storage or storage device 12.
  • Each carrier lever I5, 16, 17 and 18 has associated therewith a selector lever 19, with the aid of which there can be undertaken a pre-adjustment for the next color change.
  • the change of the momentary yarn guide shell 8, 9, 10, 11 occurs via an automatic mechanism which is controlled by the movement of the carriage 5.
  • the relevant carrier or support lever 15, 16, 17, 18 is brought into the position in which there is located the support or carrier lever 15 in the illustrated embodiment. In so doing there is insured that initially the yarn guide shell 8 will be transferred to the associated support or carrier lever 15, by
  • FIG. 2 is a side elevation of the storage element 12 shown in FIG. 1 and more clearly illustrates the relative positions of the movable yarn guides 8, 9, and 11 and the associated yarn carried by the guides.
  • yarn guide 8 carries thread 4 from supply spool 13 to the fabric being knitted.
  • yarn guide 8 is in an intermediate position prior to its being carried to the knitting position which is shown in FIG. 1.
  • yarn guide 8 is first pivoted from an inclined (or rest) position, which is best seen by referring to the remaining yarn guides 9, l0 and 11, to an upright position which is shown in phantom in FIG. 1 and in greater detail in FIG. 2.
  • the yarn guide outlet 80 of yarn guide 8 is thereby carried to an elevation corresponding to the last knitted course of the fabric being knitted which is above the outlets of the yarn guides at rest by an amount shown by the letter X. Stated another way, the yarn guides at rest have outlets which are below the last knitted course of the fabric being knitted, as is shown by the phantom lines 23-25 of FIG. 1. In this manner the threads carried by the yarn guides at rest will not become entangled with the cam assembly which carries the appropriate yarn guide to the knitting position.
  • a flat knitting machine having a yarn change mechanism and stitch stripper and a cam assembly which can be moved to-and-fro over at least one needle bed as well as yarn guides having outlet ends and located laterally of the needle bed and each associated with a respective yarn, the yarn guides being movable via a control mechanism controlled by the movement of the cam assembly into or out of the knitting position
  • the improvement comprising a plurality of support levers each having holders for releasably holding a respective one of said yarn guides, each of said support levers being movable from a first, lower position to a second, upper position, said first position being the rest position of said yarn guides, said second position being the position by which said cam assembly can pass alongside said yarn guide and transfer said yarn guide into and out of the knitting position, the outlet end of said yarn guide in its first position being located below the last knitted course of yarn to prevent entanglement of yarn from said outlet to said knitted fabric by said cam assembly movement, the outlet end of said yarn guide in the second position situated at an elevation above the outlet ends of said yarn guides

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US384250A 1972-08-16 1973-07-31 Flat knitting machine with yarn change mechanism Expired - Lifetime US3911700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2240158A DE2240158C2 (de) 1972-08-16 1972-08-16 Flachstrickmaschine mit Faden wechselvorrichtung

Publications (1)

Publication Number Publication Date
US3911700A true US3911700A (en) 1975-10-14

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ID=5853657

Family Applications (1)

Application Number Title Priority Date Filing Date
US384250A Expired - Lifetime US3911700A (en) 1972-08-16 1973-07-31 Flat knitting machine with yarn change mechanism

Country Status (7)

Country Link
US (1) US3911700A (enrdf_load_stackoverflow)
JP (1) JPS5230622B2 (enrdf_load_stackoverflow)
BR (1) BR7306334D0 (enrdf_load_stackoverflow)
DE (1) DE2240158C2 (enrdf_load_stackoverflow)
ES (1) ES417348A1 (enrdf_load_stackoverflow)
FR (1) FR2196650A5 (enrdf_load_stackoverflow)
IT (1) IT992945B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111007A (en) * 1976-11-26 1978-09-05 Silver Seiko Ltd. Yarn changing device in a flat-bed knitting machine
US4840046A (en) * 1987-04-10 1989-06-20 H. Stoll Gmbh & Co. Procedure and device for ensuring a precisely positioned introduction of a substitute yarn in a knitting machine
EP0403278A1 (en) * 1989-06-14 1990-12-19 Brother Kogyo Kabushiki Kaisha Yarn positioning controller for flat-bed knitting machines
EP0401002A3 (en) * 1989-05-30 1991-01-23 Brother Kogyo Kabushiki Kaisha Yarn exchange device for a flat bed knitting machine
US4993241A (en) * 1978-10-03 1991-02-19 Carrotte Frederick H Method of knitting
CN102926124A (zh) * 2011-08-10 2013-02-13 佰龙机械厂股份有限公司 横编机直驱式辅助导纱机构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120383U (enrdf_load_stackoverflow) * 1981-01-22 1982-07-26
JPS6185429U (enrdf_load_stackoverflow) * 1984-11-12 1986-06-05
JPS6325069U (enrdf_load_stackoverflow) * 1986-08-01 1988-02-18
JPH0387371U (enrdf_load_stackoverflow) * 1989-12-21 1991-09-05

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1571769A (en) * 1920-07-08 1926-02-02 Max Nydegger Selective-thread-change mechanism for knitting machines
US2026744A (en) * 1933-02-25 1936-01-07 Stephen W Lippitt Knitting machine
US2755647A (en) * 1952-06-17 1956-07-24 Dubied Machinery Company Method and flat knitting machine for the manufacturing of regular knitted fabrics
US3390551A (en) * 1965-09-14 1968-07-02 Nat D Armes De Guerre Sa Fab Selection device of carrier rods for knitting machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1571769A (en) * 1920-07-08 1926-02-02 Max Nydegger Selective-thread-change mechanism for knitting machines
US2026744A (en) * 1933-02-25 1936-01-07 Stephen W Lippitt Knitting machine
US2755647A (en) * 1952-06-17 1956-07-24 Dubied Machinery Company Method and flat knitting machine for the manufacturing of regular knitted fabrics
US3390551A (en) * 1965-09-14 1968-07-02 Nat D Armes De Guerre Sa Fab Selection device of carrier rods for knitting machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111007A (en) * 1976-11-26 1978-09-05 Silver Seiko Ltd. Yarn changing device in a flat-bed knitting machine
US4993241A (en) * 1978-10-03 1991-02-19 Carrotte Frederick H Method of knitting
US4840046A (en) * 1987-04-10 1989-06-20 H. Stoll Gmbh & Co. Procedure and device for ensuring a precisely positioned introduction of a substitute yarn in a knitting machine
EP0401002A3 (en) * 1989-05-30 1991-01-23 Brother Kogyo Kabushiki Kaisha Yarn exchange device for a flat bed knitting machine
US5022239A (en) * 1989-05-30 1991-06-11 Brother Kogyo Kabushiki Kaisha Yarn exchange device for a flat-bed knitting machine
EP0403278A1 (en) * 1989-06-14 1990-12-19 Brother Kogyo Kabushiki Kaisha Yarn positioning controller for flat-bed knitting machines
US5056338A (en) * 1989-06-14 1991-10-15 Brother Kogyo Kabushiki Kaisha Yarn positioning controller for flat-bed knitting machines
CN102926124A (zh) * 2011-08-10 2013-02-13 佰龙机械厂股份有限公司 横编机直驱式辅助导纱机构

Also Published As

Publication number Publication date
JPS5040856A (enrdf_load_stackoverflow) 1975-04-14
ES417348A1 (es) 1976-03-01
DE2240158A1 (enrdf_load_stackoverflow) 1973-04-19
JPS5230622B2 (enrdf_load_stackoverflow) 1977-08-09
DE2240158C2 (de) 1973-11-08
DE2240158B1 (de) 1973-04-19
FR2196650A5 (enrdf_load_stackoverflow) 1974-03-15
IT992945B (it) 1975-09-30
BR7306334D0 (pt) 1974-07-25

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