EP0077022B1 - Zungennadel für Maschinen zur Herstellung von Maschenware - Google Patents

Zungennadel für Maschinen zur Herstellung von Maschenware Download PDF

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Publication number
EP0077022B1
EP0077022B1 EP82109246A EP82109246A EP0077022B1 EP 0077022 B1 EP0077022 B1 EP 0077022B1 EP 82109246 A EP82109246 A EP 82109246A EP 82109246 A EP82109246 A EP 82109246A EP 0077022 B1 EP0077022 B1 EP 0077022B1
Authority
EP
European Patent Office
Prior art keywords
needle
tongue
latch
spoon
symmetry
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
Application number
EP82109246A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0077022A1 (de
Inventor
Werner Ing. Grad. Wohlgemuth
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
Theodor Groz and Soehne and Ernst Beckert Nadelfabrik 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 Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG filed Critical Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG
Publication of EP0077022A1 publication Critical patent/EP0077022A1/de
Application granted granted Critical
Publication of EP0077022B1 publication Critical patent/EP0077022B1/de
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a latch needle for machines for the manufacture of knitwear, with a needle shaft, a needle head and a needle tongue pivotably mounted in a tongue slot.
  • One of the essential prerequisites for the proper functioning of a latch needle is that the needle opens and closes properly during the knitting or knitting process.
  • the needle tongue is therefore guided relatively precisely in the tongue slot and aligned with the tongue spoon on the tip of the hook.
  • the needle tongue is deflected sideways during the knitting or knitting process during the closing movement to such an extent that it reaches next to or below the needle head.
  • the needle tongue can no longer open, making the tongue needle unusable and creating an error in the goods.
  • the needle tongue and the tongue slit wall wear each other, which inevitably leads to an increase in the lateral play of the leads in the tongue slot guided tongue. If the increase in the tongue bearing play, which is unavoidable with a longer period of use of the needle, then occurs, the lateral deflection of the free end of the tongue spoon, as already explained, can become so great that the tongue spoon misses the needle head when it closes the needle tongue or slides sideways on it, and thus gets under or next to the needle head, making the latch needle unusable.
  • the object of the invention is to remedy this and to create a latch needle, in which even with a long period of use it is ensured that the needle tongue closes properly and cannot get next to or under the needle head during the closing movement.
  • the latch needle mentioned at the outset is characterized according to the invention in that the latch spoon, with respect to the plane of symmetry of the latch, is inclined towards one side of the needle shaft and that the lateral distance of the outermost point of the latch spoon from the plane of symmetry is at most half Shaft thickness is.
  • the inclined position of the tongue spoon which is coordinated with the associated contact surfaces of the tongue spoon and the needle head, ensures that in the closed position of the tongue needle, namely both the rest position of the tongue needle, and especially during the knitting or knitting process, when the needle tongue due to the lateral forces the tongue slit wall is pressed on, the support of the tongue spoon on the needle head is guaranteed.
  • the latch needle shown in the drawing has a needle shaft 1, to which a hook-shaped bent needle head 3 is connected via a needle neck 2.
  • a tongue slot 4 is formed in the needle shaft 1, in which a needle tongue 5 is mounted so as to be pivotable about a transverse axis 6 of the needle.
  • the needle tongue 5 has a tongue shaft 7 projecting into the tongue slot 4 and a widened tongue spoon 8 adjoining this at the end.
  • the needle head 3 is toothed at 9 in the manner shown in FIG. 5, so that the correspondingly curved tongue spoon 8 can engage in the tooth 9.
  • the tongue spoon 8 as can be seen from FIGS. 2 to 4, is inclined in relation to the plane of symmetry of the needle tongue 5 indicated at 10, pointing towards one side of the needle shaft 1.
  • the arrangement is such that the lateral distance A of the outermost point 11 of the tongue spoon 8 from the needle symmetry plane 12 is at most equal to half the shaft thickness B. This ensures that the outermost lateral point of the tongue spoon 8 does not protrude laterally beyond the adjacent side wall 13 or 13a of the needle shaft 1.
  • the tongue spoon 8 is inclined clockwise
  • the embodiment according to FIG. 3 the inclined position is counter-clockwise.
  • the embodiment according to FIGS. 2, 4 is intended, for example, for circular knitting or circular knitting machines with a clockwise direction of rotation, while the embodiment according to FIG. Is suitable for machines with an opposite direction of rotation.
  • the tongue spoon 8 is bent laterally in the region of its root at 14 by a predetermined small angle a with respect to the plane of symmetry 10 of the needle tongue 5.
  • the "bend" can take place at an angle or with a more or less large radius.
  • the latch needle shown in FIG. 1 is inserted, for example, into the needle cylinder of a circular knitting machine rotating clockwise, as indicated by an arrow 15, the needle latch 5 is applied to the shaft 7 by the lateral forces acting on it in the manner shown in FIG the side wall 16 of the tongue slot 4 lying behind in the direction of rotation is pressed.
  • the tongue spoon 8 covers the needle head 3 perfectly, so that it is impossible for the tongue spoon 8 to reach the needle head 3 in the closed position.
  • the described embodiments of the latch needles have a toothed needle head 3.
  • the invention can also be used to the same extent for tongue needles with a toothed needle tongue, as it is independent of the design of the contact surface of the needle tongue on the needle head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP82109246A 1981-10-10 1982-10-06 Zungennadel für Maschinen zur Herstellung von Maschenware Expired EP0077022B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3140386 1981-10-10
DE3140386A DE3140386C2 (de) 1981-10-10 1981-10-10 "Zungennadel für Maschinen zur Herstellung von Maschenware"

Publications (2)

Publication Number Publication Date
EP0077022A1 EP0077022A1 (de) 1983-04-20
EP0077022B1 true EP0077022B1 (de) 1984-09-26

Family

ID=6143885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109246A Expired EP0077022B1 (de) 1981-10-10 1982-10-06 Zungennadel für Maschinen zur Herstellung von Maschenware

Country Status (6)

Country Link
US (1) US4498315A (ja)
EP (1) EP0077022B1 (ja)
JP (1) JPS6059337B2 (ja)
CA (1) CA1189714A (ja)
DE (1) DE3140386C2 (ja)
WO (1) WO1983001259A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6426764A (en) * 1987-07-16 1989-01-30 Shibata Seishin Kk Knitting needle
DE3921458C1 (ja) * 1989-06-30 1990-09-27 Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De
DE10035827C2 (de) * 2000-07-22 2003-10-16 Groz Beckert Kg Zungennadel mit abgesetztem Zungenschaft
EP1873287B1 (de) 2006-06-26 2012-01-25 Groz-Beckert Kommanditgesellschaft Zungennadel für maschenbildende Textilmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US956318A (en) * 1907-04-03 1910-04-26 George C Egly Knitting-machine needle.
DE672512C (de) * 1936-10-18 1939-03-04 Dubied & Cie Sa E Strickmaschinennadel
US4096713A (en) * 1977-08-08 1978-06-27 The Torrington Company Knitting needle

Also Published As

Publication number Publication date
JPS6059337B2 (ja) 1985-12-24
WO1983001259A1 (en) 1983-04-14
EP0077022A1 (de) 1983-04-20
JPS58501678A (ja) 1983-10-06
US4498315A (en) 1985-02-12
DE3140386C2 (de) 1983-09-15
CA1189714A (en) 1985-07-02
DE3140386A1 (de) 1983-04-28

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