EP2336412B1 - Aiguille de flottaison pour un métier à crochets pour galons - Google Patents

Aiguille de flottaison pour un métier à crochets pour galons Download PDF

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Publication number
EP2336412B1
EP2336412B1 EP09015525A EP09015525A EP2336412B1 EP 2336412 B1 EP2336412 B1 EP 2336412B1 EP 09015525 A EP09015525 A EP 09015525A EP 09015525 A EP09015525 A EP 09015525A EP 2336412 B1 EP2336412 B1 EP 2336412B1
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EP
European Patent Office
Prior art keywords
hook
needle
crochet galloon
machine needle
galloon 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.)
Active
Application number
EP09015525A
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German (de)
English (en)
Other versions
EP2336412A1 (fr
Inventor
Uwe Stingel
Andreas Kunstmann
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 EP09015525A priority Critical patent/EP2336412B1/fr
Priority to AT09015525T priority patent/ATE550468T1/de
Priority to US12/965,204 priority patent/US8161774B2/en
Priority to JP2010277961A priority patent/JP5856735B2/ja
Priority to TW99143861A priority patent/TWI468567B/zh
Priority to KR1020100128184A priority patent/KR101246125B1/ko
Priority to CN2010106250924A priority patent/CN102102273B/zh
Publication of EP2336412A1 publication Critical patent/EP2336412A1/fr
Application granted granted Critical
Publication of EP2336412B1 publication Critical patent/EP2336412B1/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
    • D04B35/08—Spring or bearded needles

Definitions

  • the invention relates to a crochet galloon needle, i. a float needle specially designed for use in a crochet galloon machine.
  • Crochet galloon machines are special machines for the production of textile ribbons, such as straps, mattress ribbons, zipper ribbons, straps, for example brassieres, elastic bandages, gauze bandages or the like.
  • a Häkelgalonmaschine for the production of textile ribbons is for example from the DE 44 17 692 A1 and the DE 29 30 824 A1 known.
  • the machine comprises a group in the same direction along forward and backward moving needles, each end carrying a hook with resilient leg.
  • the needles each produce a knit fabric, which consists for example of wales or mesh chains, which are also referred to as "closed fringe".
  • a group in the same time moving needle needles sets to at least one ground yarn and possibly also in addition an elastic thread.
  • a yarn guide is provided, the underside of which forms the stitch chain thread underlaying a so-called weft thread or goes back and forth going. This weft binds in the mesh chains.
  • Such a crochet galloon machine requires high take-off forces in order to work properly.
  • the pull-off forces pull the textile tape away from the needles and thus stretch the still hanging in the needles half-stitches to create enough space for the safe insertion of the weft thread and to ensure the ejection of newly formed stitches.
  • the fabric take-off tension must be reduced to produce the small stitches necessary to produce a high product density.
  • the distance of the mesh head of a mesh produced to the mesh bottom of the semi-mesh located in the needle hook is very small and in special cases almost equal to zero. This complicates the secure underlaying a weft thread between the mesh head of the mesh produced and mesh bottom of the half-stitch.
  • a weft thread can connect all the stitches or only a part of the stitches of a tape. In the latter case, the weft is called a partial weft.
  • a needle which is adapted for connecting a knit fabric with a tissue.
  • the needle is provided with a backward hook, which has a long, slim spring leg. At its tip, the needle has a curved beak.
  • the flotation projection ensures, even with reduced withdrawal tension, that the weft yarn, when presented and the needles are expelled, reaches the desired weft position. This is especially true for very dense textiles that can not be made secured due to the process-related reduction of the withdrawal voltage otherwise.
  • the hook inner side is circularly curved about a center which lies in the hook interior.
  • the outer contour on the outer hook side deviates from the circular arc shape.
  • the arranged here Flottiervorsprung preferably has at least one straight ramp, which extends from its tip to a hook underside, which can also be regarded as a needle back.
  • the ramp present on the float projection is preferably straight. But it can also have different shapes, such as an S-shape or the like. In the transverse direction, the ramp is preferably rounded, so that it passes without sharp edges in the flanks of the Flottiervorsprungs and the hook.
  • both the upper side and the ramp are each inclined at an angle to a central axis coinciding with the needle longitudinal direction.
  • the angle enclosed by the upper side with the central axis is preferably smaller than the angle enclosed by the ramp with the central axis.
  • the Flottiervorsprung has regardless of its other form on a pointing away from the shaft tip.
  • This tip is preferably rounded.
  • a spherical rounding is provided.
  • the radius of curvature is preferably less than the radius of curvature of the hook inside.
  • the tip is arranged above the central axis passing through the center of curvature of the hook inner side. This gives the Flottiervorsprung a pronounced guiding effect for the weft.
  • the top and the ramp may, as mentioned, both be straight.
  • the imaginary extension of these edges preferably intersects at a point which lies above the central axis running through the center of curvature of the hook inner contour.
  • the ramp receives a large catch area, within which they have a can guide the impacting weft thread to the underside of the needle.
  • the flanks of the floating projection can be designed to converge parallel to one another or to one another. You can also be just trained or have a different shape from the flat contour.
  • the floating projection has a thickness of at least about 20% to 30% of the needle thickness.
  • FIG. 1 a simple example of a belt-shaped knitted fabric 10 produced with a crochet galloon machine is shown in fragmentary form.
  • the knitted fabric 10 comprises a plurality of "closed fringes", mutually non-meshed mesh chains 11, 12, 13, 14, which are arranged side by side and each formed by a separate ground yarn 15, 16, 17, 18.
  • the longitudinal directions of the respective stitch chains 11, 12, 13, 14 coincide with the longitudinal direction of the textile tape to be produced.
  • a weft thread 19 is provided which alternately traverses the rows of stitches 11 to 14 from one edge to the other and is integrated into the individual stitches.
  • the weft thread 19 can run approximately at right angles to the longitudinal direction of the band-shaped knitwear or the stitch chains 11 to 14. Therefore, the weft thread 19 always runs in succession through the stitches of each stitch chain 11 to 14 that are produced at the same height at the same time.
  • FIG. 2 11 shows, in addition to the main thread 15 another warp thread 20 are incorporated into the knitted fabric on the basis of the first course 11.
  • the ground yarn 15 is a non-elastic (hard) yarn while the warp yarn 20 may be an elastic (soft) yarn.
  • the individual mesh chains 11, 12, etc. can be intermeshed with each other, as in FIG. 2 also indicated. Which type of binding and which stitch pattern will ultimately be achieved exactly depends on the relative movement of the system parts involved in the stitch formation process, which will be explained below.
  • To the stitch formation system include perforated needles 21 which are held in a first bar 22, and optionally further needles 23, which are held in a second bar 24.
  • the first of the piercing needles 21 may, for example be provided for guiding the ground yarn 15. More held on the same bar hole needles lead the staple threads of the other mesh chains.
  • the perforated needle 23, however, is provided for guiding a further warp thread 20. Further hole needles of the Barre 24 lead corresponding warp threads.
  • a yarn guide 25 is provided for the insertion of the weft thread 19, which traverses once during the stitch formation process for each course of stitches from one edge of the fabric to the other and thereby places the weft thread on the half-stitches just formed.
  • the knitting system further includes crochet galloon needles, hereafter referred to as needle (s) 26.
  • the needles 26 are taken at the end in a not further illustrated Barre.
  • they are slidably mounted in a needle bed 27 in the needle longitudinal direction.
  • the needles 26 are supported in the needle bed 27 in corresponding needle channels 54, on the bottom of which they slide axially back and forth during the stitch forming process.
  • the needles 26 are identical to each other, so that the following description of a needle 26 applies to all other needles 26 accordingly.
  • the needle 26 has a shaft 28 which, as in FIG. 3 illustrated, straight or too his in FIG. 3 can not be bent or cranked or otherwise formed on the left cut and therefore not shown end.
  • the shaft 28 goes to his in FIG. 3 right end, in a stitch forming part 29 over.
  • the needle 26 has a lower narrow side 30, which is for example straight and also referred to as a needle back.
  • the narrow needle top 31 extends from the shaft coming initially, for example, parallel to the narrow lower side 30 or at a slight inclination to this.
  • the needle top side 31 adjoins a needle head, which is designed as a hook 33 and belongs to the stitch formation part 29.
  • the hook 33 encloses an interior 34 which is limited to the narrow lower side 30 by a straight extension 35 of the shaft 28.
  • the extension 35 merges into a hook head 36, the inner contour of which is e.g. circular arc-shaped hook inside 37 determines. This is for example curved in a circular arc around a center 38.
  • the central axis A is assumed to extend through this center 38 and extends through an imaginary hook center. Even in the case of a non-circular arc-shaped hook inner side 37, the central axis A runs centrally at half the height through the inner hook side 37 or centrally at half the height through the inner space 34.
  • the hook head 36 of an in FIG. 3 shown crocheting machine needle points to his imaginary in FIG. 3 dashed registered to the hook inner side 37 at a constant distance extending outside hook 39 a Flottiervorsprung 40 which extends away from the shaft 28 and the hook 33.
  • the Flottiervorsprung 40 is down, that is limited to the lower side 30 through a straight ramp 41, for example, and at the top by a straight top 42, for example.
  • the ramp 41 and top 42 merge into one another at a preferably rounded tip 43.
  • This tip 43 is preferably above the central axis A arranged.
  • the radius of curvature of the tip is preferably significantly smaller than the radius of curvature of the inner side 37.
  • intersection 44 of two imaginary in FIG. 3 dotted registered extensions of the ramp 41 and the top 42 preferably above the central axis A and also preferably above a point 45, in which the hook inner side 37 merges into the straight contour of a preferably elastically formed leg 46.
  • the distance of the point 45 to the central axis A is less than the distance of the point of intersection 44 to the central axis A.
  • the leg 46 is preferably rounded at its end. This rounding is preferably formed in accordance with the rounding of the tip 43.
  • Said leg 46 is substantially straight and lies resiliently against the shaft 28 or in a recess formed thereon, for example, with an end 47 bent somewhat.
  • the Flottiervorsprung 40 has two flanks 48, 49, which, as FIG. 4 shows, can be formed as flat surfaces. The surfaces converge toward the tip 43, for example. However, the flanks 48, 49 may also be arcuately curved or otherwise formed. In addition, they can be arranged parallel to each other. The flanks 48, 49 preferably merge with rounded edges into the, for example, also preferably flat surfaces of the upper side 42 and the ramp 41.
  • Any known hook of a needle regardless of its position, its shape and its cross-section, may be provided with a floating projection 40 according to the invention.
  • the weft thread 19 slides into its desired position on the half-stitch 50. This movement of the weft thread 19 is in FIG. 7 indicated by an arrow 52.
  • the desired position of the weft thread 19 is indicated by a dashed circle 53.
  • the correct operation of the stitch formation system is ensured even if very dense knit fabric to be produced or, for example, the half-stitch 50 is very small due to only low withdrawal voltage.
  • the weft thread 19 is guided by the floatation projection 40 in any case to its desired position.
  • the needle 26 thus has a large weft catching area which enables safe and low-wear operation of the crochet galloon machine.
  • a Häkelgalonmaschinennadel 26 according to the invention is provided on its outer hook side 39 with a Flottiervorsprung 40, the tip 43 is preferably disposed above the central axis A of the needle 26.
  • This needle 26 has an enlarged weft catching area and is therefore particularly suitable for producing dense knitwear. It also allows working with reduced withdrawal tension and possibly also with reduced weft tension. This contributes to increasing the service life of all system parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
  • Sewing Machines And Sewing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (8)

  1. Aiguille pour machines à crocheter des galons (26), comprenant un corps (28) qui comporte à une extrémité un crochet (33) doté d'une tête de crochet (36), laquelle se prolonge par une branche (46) élastique qui ferme un espace intérieur de crochet (34), la tête de crochet (36) présentant un côté intérieur de crochet (37) tourné vers l'espace intérieur de crochet (34) et un côté extérieur de crochet (39) opposé au corps (28), une saillie flottante (40) étant formée sur le côté extérieur de crochet (39), la saillie flottante (40) étant disposée au-dessus d'un centre de crochet et la saillie flottante (40) présentant un côté supérieur rectiligne (42) qui s'étend d'une pointe (43) de la saillie flottante (40) à la branche (46).
  2. Aiguille pour machines à crocheter des galons selon la revendication 1, caractérisée en ce que le côté intérieur de crochet (37) est courbé en arc de cercle autour d'un centre (38).
  3. Aiguille pour machines à crocheter des galons selon la revendication 1, caractérisée en ce que la saillie flottante (40) présente une rampe rectiligne (41) qui s'étend de la pointe (43) de la saillie flottante (40) à un petit côté inférieur (30) de l'aiguille (26).
  4. Aiguille pour machines à crocheter des galons selon la revendication 1, caractérisée en ce que la pointe (43) est arrondie.
  5. Aiguille pour machines à crocheter des galons selon la revendication 2, caractérisée en ce qu'une droite appliquée sur le côté supérieur (42) et une droite appliquée sur la rampe (41) se coupent en un point (44) situé au-dessus d'un axe médian (A) passant par le centre (44).
  6. Aiguille pour machines à crocheter des galons selon la revendication 1, caractérisée en ce que la saillie flottante (40) présente des flancs plans (48, 49).
  7. Aiguille pour machines à crocheter des galons selon la revendication 6, caractérisée en ce que les flancs plans (48, 49) sont orientés parallèlement l'un à l'autre.
  8. Aiguille pour machines à crocheter des galons selon la revendication 2, caractérisée en ce que la saillie flottante (40) présente des flancs (48, 49) qui convergent vers la pointe (43) et l'un vers l'autre.
EP09015525A 2009-12-16 2009-12-16 Aiguille de flottaison pour un métier à crochets pour galons Active EP2336412B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP09015525A EP2336412B1 (fr) 2009-12-16 2009-12-16 Aiguille de flottaison pour un métier à crochets pour galons
AT09015525T ATE550468T1 (de) 2009-12-16 2009-12-16 Flottiernadel für eine häkelgalonmaschine
US12/965,204 US8161774B2 (en) 2009-12-16 2010-12-10 Floating stitch needle for a crochet galloon machine
JP2010277961A JP5856735B2 (ja) 2009-12-16 2010-12-14 クロッシェガルーン編機用浮き編み針
TW99143861A TWI468567B (zh) 2009-12-16 2010-12-15 鈎編織帶機之浮線織針
KR1020100128184A KR101246125B1 (ko) 2009-12-16 2010-12-15 코바늘 갤룬 기계용 플로팅 스티치 니들
CN2010106250924A CN102102273B (zh) 2009-12-16 2010-12-15 用于钩编织带机的浮线针

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09015525A EP2336412B1 (fr) 2009-12-16 2009-12-16 Aiguille de flottaison pour un métier à crochets pour galons

Publications (2)

Publication Number Publication Date
EP2336412A1 EP2336412A1 (fr) 2011-06-22
EP2336412B1 true EP2336412B1 (fr) 2012-03-21

Family

ID=41842605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09015525A Active EP2336412B1 (fr) 2009-12-16 2009-12-16 Aiguille de flottaison pour un métier à crochets pour galons

Country Status (7)

Country Link
US (1) US8161774B2 (fr)
EP (1) EP2336412B1 (fr)
JP (1) JP5856735B2 (fr)
KR (1) KR101246125B1 (fr)
CN (1) CN102102273B (fr)
AT (1) ATE550468T1 (fr)
TW (1) TWI468567B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE550468T1 (de) 2009-12-16 2012-04-15 Groz Beckert Kg Flottiernadel für eine häkelgalonmaschine
JP5038525B1 (ja) * 2011-10-27 2012-10-03 竹中繊維株式会社 経編生地の製造方法、経編生地及び作業着
JP6198236B2 (ja) * 2012-10-02 2017-09-20 竹中繊維株式会社 高伸縮性衣服
JP6296590B2 (ja) * 2013-05-09 2018-03-20 竹中繊維株式会社 経編包帯の製造方法
JP6298949B2 (ja) * 2014-03-11 2018-03-28 竹中繊維株式会社 経編包帯及びその製造方法
DE102016015204A1 (de) * 2016-12-21 2018-06-21 Fachhochschule Bielefeld Häkelmaschine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1652308A (en) * 1926-12-07 1927-12-13 Wildman Mfg Co Spring-beard knitting machine
CH136019A (de) * 1928-12-05 1929-10-31 Pfaeuti Ernest Nadel für Strick-, Stopf- und ähnliche Maschinen.
US2318566A (en) 1941-10-13 1943-05-04 Bidge Tool Company Yoke vise
US2318586A (en) * 1942-06-25 1943-05-11 Vanity Fair Mills Inc Pointed bearded knitting machine needle
IT1012628B (it) * 1974-05-20 1977-03-10 Comez Spa Ago automatico a becco laterale per telai a crochet raschel ra schel catena e similari
CH641853A5 (de) 1979-07-04 1984-03-15 Textilma Ag Maschine fuer die herstellung von maschenwaren und verfahren zum betrieb der maschine.
DE3244014A1 (de) * 1982-11-27 1984-05-30 Johann 7071 Alfdorf Berger Haekelwerkzeuge zur herstellung von baendern auf einer haekelgalonmaschine
DE3447281A1 (de) 1984-12-22 1986-06-26 Kemptener Maschinenfabrik Gmbh, 8960 Kempten Naehnadel fuer den einsatz an kettel- und naehkettelmaschinen
DE4417692C2 (de) 1994-05-20 1997-04-17 Malimo Maschinenbau Kettenwirkmaschine, insbesondere Häkelgalonmaschine zur Herstellung jacquardgemusterter Polschlingengewirke
DE19517602C1 (de) * 1995-05-13 1996-08-01 Groz & Soehne Theodor Spitzennadel
DE19607182C2 (de) * 1996-02-27 1999-11-11 Wilhelm Langendorf Gmbh I K Elastisches Band
KR200194897Y1 (ko) 2000-03-24 2000-09-01 최종규 코바늘
DE10018897A1 (de) * 2000-04-14 2001-10-25 Sipra Patent Beteiligung Strickmaschinennadel
DE20203158U1 (de) * 2002-02-28 2003-07-10 Oskar Dilo Maschinenfabrik KG, 69412 Eberbach Nadelbrett für eine Nadelmaschine
TWM337577U (en) * 2008-01-24 2008-08-01 Pai Kuei Machinery Co Ltd Knitting needle component structure of erect fiber knitting machine
ATE550468T1 (de) 2009-12-16 2012-04-15 Groz Beckert Kg Flottiernadel für eine häkelgalonmaschine

Also Published As

Publication number Publication date
KR20110068926A (ko) 2011-06-22
TWI468567B (zh) 2015-01-11
US8161774B2 (en) 2012-04-24
ATE550468T1 (de) 2012-04-15
CN102102273A (zh) 2011-06-22
EP2336412A1 (fr) 2011-06-22
CN102102273B (zh) 2013-05-01
JP5856735B2 (ja) 2016-02-10
US20110138862A1 (en) 2011-06-16
JP2011127268A (ja) 2011-06-30
TW201144505A (en) 2011-12-16
KR101246125B1 (ko) 2013-03-25

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