EP1921189A1 - Aiguille pour machine à tricoter - Google Patents

Aiguille pour machine à tricoter Download PDF

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Publication number
EP1921189A1
EP1921189A1 EP06023321A EP06023321A EP1921189A1 EP 1921189 A1 EP1921189 A1 EP 1921189A1 EP 06023321 A EP06023321 A EP 06023321A EP 06023321 A EP06023321 A EP 06023321A EP 1921189 A1 EP1921189 A1 EP 1921189A1
Authority
EP
European Patent Office
Prior art keywords
tongue
needle
machine knitting
section
knitting 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.)
Granted
Application number
EP06023321A
Other languages
German (de)
English (en)
Other versions
EP1921189B1 (fr
Inventor
Albert Bausch
Jörg Sauter
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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 Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP06023321A priority Critical patent/EP1921189B1/fr
Priority to JP2007289913A priority patent/JP4547414B2/ja
Priority to CN2007101867019A priority patent/CN101177838B/zh
Priority to KR1020070113579A priority patent/KR100937598B1/ko
Priority to US11/979,786 priority patent/US7469562B2/en
Publication of EP1921189A1 publication Critical patent/EP1921189A1/fr
Application granted granted Critical
Publication of EP1921189B1 publication Critical patent/EP1921189B1/fr
Active legal-status Critical Current
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
    • D04B35/04—Latch needles
    • 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

Definitions

  • the invention relates to a machine knitting needle, which is particularly intended for high-speed circular knitting machines, but in principle also suitable for all other types of knitting machines or warp knitting machines.
  • Machine knitting needles are for example from the US 1629275 or even from the DE 29 07 569 B1 known. At such needles increasing demands are made in terms of higher knitting speeds.
  • the needle When knitting, the needle is moved back and forth in the longitudinal direction. Half stitches taken from the hook of the needle slide on the shaft, for example moving a tongue provided on the machine knitting needle in reserve. This movement is supported by the self-inertia of the tongue. The tongue swings Therefore, between closed position and reserve, where it strikes alternately on the hook and the shaft.
  • a needle P1 is shown in FIG. Its tongue P2 experiences its acceleration through the half-stitch as the half-stitch slides over the rounded portion P3 of the maximum jaw height.
  • the tongue is accelerated by the half-stitch in the relatively large angular range ⁇ , giving a high impact velocity.
  • the striking of the tongue in particular in reserve, represents a problem with respect to the durability of a machine knitting needle. It must be ensured that over the period of use of the machine knitting needle no undue wear of the machine knitting needle and in particular does not break the tongue or needle body ,
  • DE 29 07 569 B1 provides to provide the tongue with a throat and to form the rise from the hook to the needle breast with a relatively large pitch angle ⁇ . Although this protects the thread, it leads to compromises in working speed. In particular, as explained above, a high tongue impact velocity results the tongue on the shaft when the tongue beats in reserve.
  • the aim is to use the latch needles at ever higher operating speeds.
  • the geometry of the jaw rise reduces the load on the tongue and shaft when the tongue beats in reserve and strikes the shaft.
  • a second, straight portion of the jaw rise is achieved that the speed of a sliding from the hook interior over the jaw rise half-mesh is not too large.
  • the speed transmitted from the half-stitch to the tongue is tolerable and less than in the prior art, in particular according to FIG. 5.
  • the rise of the jaw between the hook and the needle face is straight, with the pitch angle of the rise of the jaw rise decreasing only in the reverse region, ie, the highest point of jaw rise measured from the needle back.
  • the reversing portion is preceded by a straight rising portion whose pitch angle is constant at all points and smaller than the pitch angle of the upstream portion of the rise of the jaw rise.
  • the second flatter straight portion of the cheek ramp allows for reduction the total height of the jaw to be measured from the back of the needle. This minimizes at least the distance that the stitch head must travel on the shaft of the needle in the same amount of time as the mesh legs and mesh feet of the half stitch.
  • the acceleration of the mesh head and thus the acceleration of the tongue and thereby in turn their load is reduced when impacting in reserve.
  • the jaw increase according to the invention can be realized by a two-stage ramp, which ensures that the half-stitch after being hit on the tongue, has to cope with a reduced pitch angle.
  • the tongue is concave on its side facing the hook interior. On the one hand this reduces the mass of the tongue and leaves the half stitch relatively late, i. only hit the tongue at relatively low pitch angles.
  • a needle 1 which has an elongate shaft 2, on which end a hook 3 is formed.
  • the shaft 2 for example, meandering into a needle body with a suitable means for driving the machine knitting needle 1, for example in the form of a foot, not shown.
  • the hook 3 is associated with a tongue 4, which protrudes at a designated needle axis 5 upwardly convex position of the shaft 2 from a tongue slot 6 out in which it is pivotally supported by a tongue bearing 7.
  • the tongue bearing 7 is indicated only schematically in Figure 1 as well as the other figures.
  • the needle breast 5 is provided with a jaw rise 8, which extends as the needle back 9 opposite contour of the hook 3 on the tongue bearing 7 away.
  • This jaw rise 8 is preferably subdivided into several sections.
  • a hook-side portion that forms a region 10 is preferably approximately straight in side view and begins within the hook 3. It runs approximately parallel to the needle back 9 or at a pitch angle of a few degrees.
  • At a point 11 begins a first portion 12, which is preferably formed straight in side view.
  • the point 11 adjoins the hook interior, which is bounded by the tongue 4, the shaft 2 and the hook 3.
  • the slope of the first section 12 is determined by a pitch angle ⁇ . It is preferably in the range of 5 ° to 20 °.
  • the pitch angle ⁇ is the angle between the portion 12 and the needle back 9.
  • At the point 11 is preferably a rounded transition between the area 10 and the first portion 12 is provided.
  • the first portion 12 extends to a point 13 which is adjacent to the tongue 4 when in the closed position. In needle side view, this means that the point 13 can be found between a tongue inner side 14 and a tongue back 15.
  • the jaw rise 8 merges into a second straight section 16, which has a pitch angle ⁇ .
  • This pitch angle ⁇ is to be measured to the needle back 9. It is smaller, preferably significantly smaller than the pitch angle ⁇ of the first section 12.
  • the straight section 16 preferably continues up to a point 17, which is still seen next to the tongue 4, but preferably already from the point of view of the hook 3, behind the back of the tongue 15 lies.
  • a preferably rounded reversing section 18 begins, in which the jaw 5 reaches its greatest height BH. Beyond the turnaround section 18, the shaft 2 becomes slimmer again.
  • the reversing portion 18 is preferably from the perspective of the hook 3 behind the tongue bearing. 7
  • the behavior of the knitted fabric explained below with reference to FIGS. 3 and 4 is achieved when transferring a half stitch 19 out of the hook interior over the open tongue 4 onto the shaft 2.
  • the hook interior is preferably concave, so that the reception of at least one thread is ensured safe.
  • the largest possible hook interior allows the secure picking up of at least one thread. From this hook interior is a recorded thread forming a half-stitch 19, transferred over the open tongue 4 on the shaft 2 as described below.
  • the half-stitch 19 is formed from a thread and consists of a head 20, two of these adjoining legs 21 and two mesh feet 22. With the mesh feet 22, the half-stitch 19 is anchored in the fabric already produced 23.
  • the acceleration ranges ⁇ and ⁇ are substantially smaller in the case of the needle 1 according to the invention than in the prior art needle P1 according to FIG. 5. Between them lies a large pivoting range without significant acceleration of the tongue 4. As a result, the speed of the tongue 4 is increased Impact on the shaft 2 reduced. This leads to a lower kinetic energy, with the tongue head in reserve. In this way, tongue and jaw breaks are largely avoided even at higher knitting speeds.
  • a first section 12 rises with a comparatively large acute angle ⁇ of, for example, up to 20 °, preferably 16 °.
  • ⁇ acute angle
  • the second portion 16 is a straight portion which increases at a smaller acute angle ⁇ of, for example, only 14 ° or less.
  • this acceleration-free pivoting range is at least 90 °, preferably greater than 110 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP06023321A 2006-11-09 2006-11-09 Aiguille pour machine à tricoter Active EP1921189B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP06023321A EP1921189B1 (fr) 2006-11-09 2006-11-09 Aiguille pour machine à tricoter
JP2007289913A JP4547414B2 (ja) 2006-11-09 2007-11-07 機械用編針
CN2007101867019A CN101177838B (zh) 2006-11-09 2007-11-08 机织针
KR1020070113579A KR100937598B1 (ko) 2006-11-09 2007-11-08 편물기용 바늘
US11/979,786 US7469562B2 (en) 2006-11-09 2007-11-08 Machine knitting needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06023321A EP1921189B1 (fr) 2006-11-09 2006-11-09 Aiguille pour machine à tricoter

Publications (2)

Publication Number Publication Date
EP1921189A1 true EP1921189A1 (fr) 2008-05-14
EP1921189B1 EP1921189B1 (fr) 2011-05-11

Family

ID=37917449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023321A Active EP1921189B1 (fr) 2006-11-09 2006-11-09 Aiguille pour machine à tricoter

Country Status (5)

Country Link
US (1) US7469562B2 (fr)
EP (1) EP1921189B1 (fr)
JP (1) JP4547414B2 (fr)
KR (1) KR100937598B1 (fr)
CN (1) CN101177838B (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113537B (de) * 1954-06-25 1961-09-07 Karl Steinhof App Fabrik Handstrickapparat, Zungennadel fuer einen Handstrickapparat, und Verfahren zur Herstellung der Zungennadel
US3164000A (en) * 1962-05-07 1965-01-05 Textured Yarn Co Knitting needle
DE2907569B1 (de) * 1979-02-27 1980-07-24 Mayer & Cie Maschinenfabrik Zungennadel fuer Wirk- und Strickmaschinen
DE3018699A1 (de) * 1979-05-24 1980-12-04 Mas Matias Mestre Maschenuebertragungsnadel fuer wirkmaschinen
GB2169320A (en) * 1984-12-18 1986-07-09 Dubied & Cie Sa E Latch needle for knitting-machines

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US757378A (en) * 1903-08-24 1904-04-12 Charles Richard Woodward Knitting-machine needle.
US1022238A (en) * 1911-05-10 1912-04-02 Herbert Heaton Knitting-needle.
US1629275A (en) * 1925-03-30 1927-05-17 Torrington Co Latch needle
US1629725A (en) * 1925-11-18 1927-05-24 J F Rogers Door and window-screen catch and fastener
US3063274A (en) * 1956-04-13 1962-11-13 Kohl Karl Raschel warp knitting machine with novel latch needles
JPS4630301Y1 (fr) * 1968-04-30 1971-10-20
DE2714607C3 (de) * 1977-04-01 1983-12-08 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Zungennadel für Maschinen zur Herstellung von Maschenware
JPS5912780B2 (ja) * 1978-01-17 1984-03-26 福原ニ−ドル株式会社 メリヤス針
US4210003A (en) * 1978-06-07 1980-07-01 The Torrington Company Knitting needle with reinforced hook
JPS5522027A (en) * 1978-07-28 1980-02-16 Kokubu Tadaaki Knitting machine
DE3133266C2 (de) * 1981-08-22 1988-12-22 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Strick- oder Wirkmaschinen
JPS6044416B2 (ja) * 1982-10-04 1985-10-03 福原ニ−ドル株式会社 メリヤス針
JPS61168188U (fr) * 1985-04-05 1986-10-18
DE3702019C1 (de) * 1987-01-24 1987-09-24 Groz & Soehne Theodor Zungennadel fuer maschenbildende Textilmaschinen
JPH0418696U (fr) * 1990-06-05 1992-02-17
US5154069A (en) * 1991-09-12 1992-10-13 Exeltor Inc. Knitting needle having force reduction portion
JPH0860504A (ja) * 1994-08-26 1996-03-05 Tsudakoma Corp 編機用ベラ針
DE10051029C1 (de) * 2000-10-14 2002-07-11 Groz Beckert Kg Zungennadel mit federnder Zungenunterstützung
US6321578B1 (en) * 2001-02-28 2001-11-27 Francesco Gavagnin Apollonio Method and apparatus for transferring a loop from a selected needle to an adjacent needle for creating a decorative open-work pattern with no-run stitch and loop transfer knitting needle
DE102004049061B4 (de) * 2004-10-08 2006-08-24 Groz-Beckert Kg Zungennadel
EP1767678B1 (fr) * 2005-09-22 2008-03-26 Groz-Beckert KG Aiguille à tricoter pour métier à tricoter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113537B (de) * 1954-06-25 1961-09-07 Karl Steinhof App Fabrik Handstrickapparat, Zungennadel fuer einen Handstrickapparat, und Verfahren zur Herstellung der Zungennadel
US3164000A (en) * 1962-05-07 1965-01-05 Textured Yarn Co Knitting needle
DE2907569B1 (de) * 1979-02-27 1980-07-24 Mayer & Cie Maschinenfabrik Zungennadel fuer Wirk- und Strickmaschinen
DE3018699A1 (de) * 1979-05-24 1980-12-04 Mas Matias Mestre Maschenuebertragungsnadel fuer wirkmaschinen
GB2169320A (en) * 1984-12-18 1986-07-09 Dubied & Cie Sa E Latch needle for knitting-machines

Also Published As

Publication number Publication date
KR20080042710A (ko) 2008-05-15
JP2008121183A (ja) 2008-05-29
CN101177838A (zh) 2008-05-14
KR100937598B1 (ko) 2010-01-20
CN101177838B (zh) 2012-04-18
JP4547414B2 (ja) 2010-09-22
US20080141730A1 (en) 2008-06-19
EP1921189B1 (fr) 2011-05-11
US7469562B2 (en) 2008-12-30

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