EP2551393B1 - Aiguille complexe, métier à mailles cueillies - Google Patents

Aiguille complexe, métier à mailles cueillies Download PDF

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Publication number
EP2551393B1
EP2551393B1 EP10848431.2A EP10848431A EP2551393B1 EP 2551393 B1 EP2551393 B1 EP 2551393B1 EP 10848431 A EP10848431 A EP 10848431A EP 2551393 B1 EP2551393 B1 EP 2551393B1
Authority
EP
European Patent Office
Prior art keywords
needle
slider
main body
engagement portion
arm
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.)
Active
Application number
EP10848431.2A
Other languages
German (de)
English (en)
Other versions
EP2551393A4 (fr
EP2551393A1 (fr
Inventor
Kenji Kitahara
Hirotoshi Yamano
Toshinori Nakamori
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.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg Ltd
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 Shima Seiki Mfg Ltd filed Critical Shima Seiki Mfg Ltd
Publication of EP2551393A1 publication Critical patent/EP2551393A1/fr
Publication of EP2551393A4 publication Critical patent/EP2551393A4/fr
Application granted granted Critical
Publication of EP2551393B1 publication Critical patent/EP2551393B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D04B35/06—Sliding-tongue 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

Definitions

  • the present invention relates to a compound needle having a configuration of opening and closing a hook arranged at a distal end of a needle main body with a slider, and a flat knitting machine equipped with the compound needle.
  • the flat knitting machine is a machine that knits a knitted fabric by moving knitting needles arranged in a great number of needle grooves arranged in parallel in a needle bed with a cam system arranged in a carriage, which reciprocates along a longitudinal direction of the needle bed (direction orthogonal to the needle groove).
  • a compound needle that opens and closes the hook of the needle main body with the slider is known as a knitting needle used in such a flat knitting machine (see e.g., Patent Documents 1 and 2).
  • Fig. 3 is a schematic view of a needle main body 101, a slider 102, and a needle jack 103 of the members configuring the compound needle
  • Fig. 4 is a schematic view of a compound needle 200 in which each member 101, 102, 103 are combined, where (A) shows a state in which the slider 102 is withdrawn the most with respect to the needle main body 101, and (B) shows a state in which the slider 102 is advanced the most with respect to the needle main body 101.
  • the needle main body 101 is a linear long member having a hook 111, which is arranged at the distal end of the body to hold a knitting yarn, and a needle jack engagement portion (hereinafter referred to as NJ engagement portion) 112, which is arranged on a back end side of the body.
  • a distal end engagement portion 132 of a needle jack (hereinafter referred to as NJ) 103 engages the NJ engagement portion 112.
  • the slider 102 is a long member that advances and withdraws along the needle groove when the cam system acts on a butt 129 arranged therein, and is a member that opens and closes the hook 111 with two slider plates 121 arranged on the distal end side.
  • a slider arm 123 of the slider 102 and an arm-slidably-contacting surface 113 of the needle main body 101 slidably contact each other so that the members 101, 102 do not chatter in an up and down direction.
  • the arm-slidably-contacting surface 113 is formed between a projection 111P that projects out at the upper surface of the needle main body 101, and a projection 112A that forms the NJ engagement portion 112.
  • Prior art document EP 1 203 838 A1 discloses a compound needle comprising a needle body having a hook-shaped hook at a front end thereof and a slider which is supported on the needle body to move relative thereto in a longitudinal direction of the needle body to the hook-shaped hook so as to open and close the hook-shaped hook, so as to capture a knitting yarn and form a knitting stitch, wherein a tongue provided at a front end portion of the slider is provided, at a front end thereof, with a drop-stitch-preventing shoulder to prevent a stitch held on the tongue of the slider from slipping off the tongue during a knitting operation, and also the hook-shaped hook is provided, on an outer edge thereof extending from a front end of a lip portion thereof toward a top thereof, with a stitch escape surface, such that when the hook-shaped hook is closed by the tongue, the drop-stitch-preventing shoulder is hidden by the stitch escape surface to facilitate a knock-over of the stitch.
  • the inventors of the present invention reviewed the factors that the entire length of the compound needle 200 is long, and focused on the fact that the engagement position of the NJ 103 with respect to the needle main body 101 is distant from the hook 111 to ensure the slide length of the slider 102.
  • the engagement position is distant from the hook 111 because the projection or the like that inhibits the relative slide of the arm-slidably-contacting surface 113 and the slider arm 123 cannot be arranged on the arm-slidably-contacting surface 113, and the NJ engagement portion 112 inevitably needs to be arranged on the further back end side of the needle main body 101 than the arm-slidably-contacting surface 113.
  • the inventors of the present invention changed the way of thinking and reached the idea of arranging the arm-slidably-contacting surface and the needle jack engagement portion in the needle main body in parallel in the thickness direction of the needle groove.
  • the inventors thus came to complete the compound needle of the present invention and the flat knitting machine described below.
  • the compound needle of the present invention comprises the features as set forth in claim 1.
  • a preferred embodiment of the compound needle of the invention is stated in subclaim 2.
  • a flat knitting machine according to the present invention is defined in claim 3.
  • the compound needle of the present invention since the arm-slidably-contacting surface and the needle jack engagement portion of the needle main body are arranged in parallel in a width direction of the needle groove, the position where the needle jack engages the needle main body becomes closer to the hook compared to the prior art and the entire length of the needle main body can also be shortened. Therefore, the compound needle of the present invention is shorter and lighter than the conventional compound needle. As a result, the needle groove in which the compound needle is to be arranged can be shortened, whereby the needle bed can be made smaller and lighter, and the cost can be reduced with space saving and lighter weight of the flat knitting machine and reduction in material.
  • the slide resistance can be generated between the slider and the side wall of the needle groove by forming the slide-resistance generating portion in the slider, so that the accuracy of the stopping position of the slider can be enhanced.
  • the slide-resistance generating portion is not arranged on the slider arm and pushes the slider to the needle groove on the side opposite to the side where the needle jack is arranged, so that the slider arm is not strongly pushed against the distal end of the needle jack and the needle jack engagement portion of the needle main body. As a result, the advancing and withdrawing operation of the slider, and the advancing and withdrawing operation of the needle jack and the needle main body become smoother.
  • the flat knitting machine equipped with the compound needle of the present invention is smaller and lighter than the prior art.
  • the length along the needle groove of the needle bed becomes shorter in accordance with the shortened compound needle, and the carriage that operates the compound needle also becomes compact.
  • a compound needle 100 of the present invention differs in the configuration of a needle main body 1, a slider 2, and a needle jack (hereinafter referred to as NJ) 3 arranged in the compound needle 100. Due to the difference in the configurations, an entire length of the compound needle 100 is greatly shortened compared to the conventional compound needle 200 although a slide length of the slider 2 in the compound needle 100 is the _ same as that in the conventional compound needle 200. Only the members 1, 2, 3 in the compound needle 100 will be described below.
  • the needle main body 1 is a linear long member having a hook 11, which is arranged at a distal end to hold a knitting yarn, a needle jack engagement portion (hereinafter referred to as NJ engagement portion) 12, which is arranged at a back end, and an arm-slidably-contacting surface 13, to which a slider arm 23 of the slider 2, to be described, makes slidable contact.
  • the difference between the needle main body 1 and the needle main body 101 of the conventional compound needle 200 lies in that the arm-slidably-contacting surface 13 and the NJ engagement portion 12 are arranged in parallel in a thickness direction of the needle main body 1.
  • the arm-slidably-contacting surface 13 and the NJ engagement portion 12 can be arranged in parallel in the thickness direction of the needle main body 1 because the thickness of the needle main body 1 in a region 1R from a projection 11P of the needle main body 1 to the back end of the needle main body 1 is divided into two regions and the NJ engagement portion 12 is arranged in one of the regions (see the top view of the needle main body in Fig. 1 ). That is, the NJ engagement portion 12 is formed by projections 12A, 12B that project out to the upper side of the needle main body 1, but such projections 12A, 12B are arranged solely on the side of one side wall of a needle groove and have a thinner thickness than the width of the needle groove.
  • the arm-slidably-contacting surface 13 is formed by an upper surface of the needle main body 1 in the other region where the NJ engagement portion 12 is not arranged of the two regions obtained by dividing the region 1R in the thickness direction of the needle main body 1.
  • the thickness (thickness substantially the same as the width of the needle groove) of the needle main body 1 in the region 1R is shared by the width of the arm-slidably-contacting surface 13 and the thicknesses of the projections 12A, 12B of the NJ engagement portion 12, so that the arm-slidably-contacting surface 13 and the NJ engagement portion 12 can be arranged in parallel in the thickness direction of the needle main body 1.
  • the position of the back end of the needle main body 1 can be brought closer to the hook 11, so that the length of the needle main body 1 can be shortened by approximately 40% of the prior art.
  • the slider 2 includes a slider base 20, two slider plates 21 mounted to the slider base 20, a schematically L-shaped slider arm 23 arranged at an intermediate portion of the slider base 20, and a butt 29 on which a cam system arranged in the carriage acts.
  • the two slider plates 21 are arranged in slider grooves 11G, 11G of the needle main body 1 to be able to sandwich the hook 11 in between.
  • the slider arm 23 to be brought into slidable contact with the arm-slidably-contacting surface 13 is formed thin with change in design of the needle main body 1.
  • the slider arm 23 is thinner than the thickness of the slider base body 20 (substantially the same thickness as the width of the needle groove) and is arranged solely on the side of the arm-slidably-contacting surface 13 of the needle main body 1 when the slider 2 and the needle main body 1 are combined (see also Fig. 2C ).
  • the slider arm 23 slidably contacts the arm-slidably-contacting surface 13 at the upper side of the arm-slidably-contacting surface 13 arranged on the bottom side in a depth direction of the needle groove.
  • the slide length of the slider 2 with respect to the needle main body 1 is defined in the following manner.
  • Fig. 2B when the slider 2 is advanced with respect to the needle main body 1, the slider arm 23 of the slider 2 and the projection 11P of the needle main body 1 are brought into contact thus inhibiting the slider 2 from advancing in excess.
  • the slider 2 includes a plate spring shaped slide-resistance generating portion 25 on a side surface on the distal end side of the slider arm 23 in the slider body 20, the side surface being on the opposite side of the slider arm 23 in the thickness direction of the slider base body 20.
  • the slide-resistance generating portion 25 makes contact with one side wall of the needle groove when the slider 2 is arranged in the needle groove, thus pushing the slider base body 20 against the other side wall of the needle groove, generating slide resistance between the slider 2 and the needle groove, and enhancing the accuracy of the stopping position of the slider 2 in the needle groove.
  • the basic shape of the NJ3 is practically the same as the conventional article, and the NJ3 includes a distal end engagement portion 32 that engages the NJ engagement portion 12 of the needle main body 1, and a butt 39 on which the cam system arranged in the carriage acts, similar to the prior art.
  • the thickness of a distal end region 3R of a predetermined length including the distal end engagement portion 32 becomes thin with change in design of the needle main body 1 and the slider 2.
  • the thin thickness portion is arranged solely on the side of the NJ engagement portion 12 of the needle main body 1 when the NJ3 and the needle main body 1 are combined.
  • the slider arm 23 and the distal end region 3R of the NJ3 are arranged in parallel in the thickness direction of the needle groove, as shown in a perspective view taken along line A-A of Fig. 2C .
  • the position where the NJ3 engages the needle main body 1 becomes closer to the hook 11 compared to the prior art, and hence the entire length of the compound needle 100 is greatly shortened from the prior art.
  • the slider arm 23 does not interfere with the distal end region 3R of the NJ3 or the NJ engagement portion 12 of the needle main body 1, and thus the relative slide length of the needle main body 1 and the slider 2 is the same as the conventional compound needle 200 and does not become shorter than the compound needle 200.
  • the length of the needle groove can be shortened by such an amount.
  • the needle bed can be miniaturized and made lighter, and furthermore, the carriage that travels on the needle groove can be miniaturized and made lighter thus achieving great space saving and lighter weight of the flat knitting machine.
  • Higher speed and improvement in acceleration/deceleration performance of the carriage can also be expected with reduction in the weight of the carriage.
  • lighter weight of the compound needle 100 can also be achieved since the entire length of the needle main body 1 is shortened with the arrangement in which the NJ engagement portion 12 is brought closer to the hook 11 in the needle main body 1.
  • the compound needle 100 may be arranged in units of thousands in the flat knitting machine, and thus the weight of the entire flat knitting machine can be greatly reduced if the weight of the compound needle 100 can be reduced. Furthermore, if the weight of the compound needle 100 can be reduced, the load that advances and withdraws the compound needle 100 in the needle groove also becomes smaller, and thus the output of the motor for travelling the carriage can be replaced with a low output motor and the power consumption can be reduced.
  • the slide-resistance generating portion 25 for generating the slide resistance between the slider 2 and the needle groove is arranged on the same side as the NJ3 in the thickness direction of the needle groove, and thus the slider 2 is pushed in the direction away from the NJ3.
  • an excessively large friction force does not act between the slider 2 and the NJ3, and the advancing and withdrawing operations of the slider 2 along the needle groove as well as the advancing and withdrawing operation of the NJ3 and the needle main body 1 along the needle groove become smoother.
  • the embodiment of the present invention is not limited to the embodiment described above, and may be appropriately changed within a scope not deviating from the gist of the invention.
  • a compound needle in which one slider plate is attached to the slider may be adopted, or a compound needle in which the slider base body and the slider plate are a complete integrated body may be adopted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (3)

  1. Aiguille composée (100) appropriée pour être disposée dans une gorge d'aiguille formée dans une fonture d'une machine à tricoter à plat, l'aiguille composée (100) comprenant un corps principal d'aiguille (1) qui comprend un crochet (11) pour tenir un fil à tricoter ;
    un coulisseau (2), qui est combiné de façon coulissante avec le corps principal d'aiguille (1) et qui ouvre et ferme le crochet (11) ; et
    un élément de contrôle d'aiguille (3), qui contacte le corps principal d'aiguille (1) et avance et retire le corps principal d'aiguille (1) dans une direction suivant la gorge d'aiguille,
    dans laquelle
    le coulisseau (2) comprend
    un corps de base de coulisseau (20),
    une plaque de coulisseau (21), qui est disposée dans le corps de base de coulisseau (20) pour ouvrir et fermer le crochet (11), et
    un bras de coulisseau (23), qui est disposé au niveau d'une portion intermédiaire du corps de base de coulisseau (20),
    le corps principal d'aiguille (1) comprend
    une portion de prise d'élément de contrôle d'aiguille (12), et
    une surface (13) contactant de façon coulissante le bras, qui est une surface vers laquelle le bras de coulisseau (23) est amené en contact coulissant ; et
    l'élément de contrôle d'aiguille (3) comprend
    une portion de prise d'extrémité distale (32), qui est formée dans une région d'extrémité distale (3R) et contacte la portion de prise d'élément de contrôle d'aiguille (12) ; i
    caractérisé en ce que
    le bras de coulisseau (23) est plus mince que l'épaisseur du corps de base de coulisseau (20) ;
    la portion de prise d'élément de contrôle d'aiguille (12) est plus mince que l'épaisseur du corps principal d'aiguille (1) ;
    et la portion de prise d'extrémité distale (32) a une épaisseur inférieure ou égale à l'épaisseur de la portion de prise d'élément de contrôle d'aiguille (12) ;
    de sorte que la surface (13) contactant de façon coulissante le bras, sur laquelle le bras de coulisseau (23) coulisse, est disposée en parallèle avec la portion de prise d'élément de contrôle d'aiguille (12) dans la direction de l'épaisseur du corps principal d'aiguille (1).
  2. Aiguille composée (100) selon la revendication 1, caractérisée en ce que
    le coulisseau (2) comprend une portion de génération de résistance de coulissement (25) formée sur le même côté, dans la direction de l'épaisseur du corps principal d'aiguille (1), que la portion de prise d'élément de contrôle d'aiguille (12) du corps principal d'aiguille (1) sur un côté opposé du bras de coulisseau (23) dans le corps de base de coulisseau (1) ; et
    la portion de génération de résistance de coulissement (25) est agencée pour appliquer une résistance de coulissement entre une gorge d'aiguille et le coulisseau (2) lorsque le coulisseau (2) coulisse le long d'une gorge d'aiguille.
  3. Machine à tricoter à plat dans laquelle au moins deux fontures comprenant une pluralité de gorges d'aiguilles sont disposées face à face, la machine à tricoter à plat comprenant l'aiguille composée (100) selon les revendications 1 ou 2 dans les gorges d'aiguilles.
EP10848431.2A 2010-03-26 2010-03-26 Aiguille complexe, métier à mailles cueillies Active EP2551393B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/055452 WO2011118038A1 (fr) 2010-03-26 2010-03-26 Aiguille complexe, métier à mailles cueillies

Publications (3)

Publication Number Publication Date
EP2551393A1 EP2551393A1 (fr) 2013-01-30
EP2551393A4 EP2551393A4 (fr) 2014-10-22
EP2551393B1 true EP2551393B1 (fr) 2015-09-23

Family

ID=44672627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10848431.2A Active EP2551393B1 (fr) 2010-03-26 2010-03-26 Aiguille complexe, métier à mailles cueillies

Country Status (5)

Country Link
EP (1) EP2551393B1 (fr)
JP (1) JP5604509B2 (fr)
KR (1) KR101445295B1 (fr)
CN (1) CN102822403B (fr)
WO (1) WO2011118038A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105239A1 (de) * 2013-05-22 2014-11-27 Groz-Beckert Kg Schiebernadel
CN103334223A (zh) * 2013-07-04 2013-10-02 宁波慈星股份有限公司 一种用于横编机的织针
EP3670725A1 (fr) * 2018-12-21 2020-06-24 Ulrich Hofmann Aiguille de formation de mailles sur un métier à tricoter ou un métier à mailles jetées et métier à tricoter ou métier à mailles jetées doté d'une pluralité de telles aiguilles

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2531535B2 (ja) * 1989-09-19 1996-09-04 株式会社 島精機製作所 コンパウンドニ―ドル
JPH03119160A (ja) * 1989-10-03 1991-05-21 Shima Seiki Seisakusho:Kk コンパウンドニードル
JPH03234847A (ja) * 1990-02-09 1991-10-18 Shima Seiki Seisakusho:Kk 横編機における可動シンカー
US5937673A (en) * 1997-05-01 1999-08-17 Shima Seiki Manufacturing, Ltd. Compound needle of a flat knitting machine
JP2946323B2 (ja) * 1997-05-01 1999-09-06 株式会社島精機製作所 横編機の複合針
JP3538730B2 (ja) * 1999-05-19 2004-06-14 株式会社島精機製作所 複合編成針
DE19950259C1 (de) * 1999-10-18 2001-01-25 Groz Beckert Kg Schiebernadel mit asymmetrisch geteiltem Schieber
JP3983737B2 (ja) * 2001-08-24 2007-09-26 株式会社島精機製作所 編機の複合針
DE10164550A1 (de) * 2001-12-18 2003-07-10 Sipra Patent Beteiligung Nadel für Strick- oder Wirkmaschinen und damit ausgerüstete Strickmaschine
JP4066941B2 (ja) * 2003-01-21 2008-03-26 セイコーエプソン株式会社 液体カートリッジ
WO2009016803A1 (fr) * 2007-07-30 2009-02-05 Shima Seiki Mfg., Ltd. Procédé de tricotage de tissu et métier à mailles cueillies

Also Published As

Publication number Publication date
CN102822403A (zh) 2012-12-12
EP2551393A4 (fr) 2014-10-22
WO2011118038A1 (fr) 2011-09-29
CN102822403B (zh) 2014-05-21
JPWO2011118038A1 (ja) 2013-07-04
JP5604509B2 (ja) 2014-10-08
EP2551393A1 (fr) 2013-01-30
KR101445295B1 (ko) 2014-09-26
KR20120124074A (ko) 2012-11-12

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