EP0647733B1 - Aiguille à clapet pour des machines textiles - Google Patents

Aiguille à clapet pour des machines textiles Download PDF

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Publication number
EP0647733B1
EP0647733B1 EP94115085A EP94115085A EP0647733B1 EP 0647733 B1 EP0647733 B1 EP 0647733B1 EP 94115085 A EP94115085 A EP 94115085A EP 94115085 A EP94115085 A EP 94115085A EP 0647733 B1 EP0647733 B1 EP 0647733B1
Authority
EP
European Patent Office
Prior art keywords
tongue
bearing bore
latch
needle
shaft
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
EP94115085A
Other languages
German (de)
English (en)
Other versions
EP0647733A1 (fr
Inventor
Kurt Wiedenhöfer
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
Publication of EP0647733A1 publication Critical patent/EP0647733A1/fr
Application granted granted Critical
Publication of EP0647733B1 publication Critical patent/EP0647733B1/fr
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
    • 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 textile machines with one in a tongue slot of the needle shaft a tongue axis by means of a continuous bearing bore needle tongue pivotally mounted in the tongue shaft.
  • Switch needles of the type described in the opening paragraph are in used in a number of textile machines, mainly in Knitting and knitting machines, but also e.g. in special sewing machines.
  • At the storage of the tongue both in terms of mechanical resilience, as high demands also on the accuracy of the tongue guide posed.
  • the strain on the tongue is particularly high, though natural fiber yarns soiled in high-speed knitting machines, e.g. OE yarns, but also elastomers processed will.
  • the tongue storage can be designed differently. So is it is known from EP 0 232 466, the tongue by means of its To store the bearing bore on a continuous axle pin.
  • the axle pin is mounted in needle shaft cheek holes, in which fixing elements as axial stops for the Axle bolts.
  • tongue needles are also known in which the tongue on two pressed out of the material of the needle shaft cheeks Bearing pin is pivotally mounted (US-A-39 34 109, GB-C-836 297).
  • Needle shaft cheek to provide a hole and in this an axle pin with a length of about 2/3 of the needle shaft thickness press in on the opposite Needle shaft cheek rests.
  • the object of the invention is to remedy this and a To create latch needle that has a longer life than conventional latch needles in terms of breaking strength of the tongue shaft.
  • the latch needle mentioned characterized in that the bearing bore in Tongue shaft is arranged so that the distances between the edge of the bearing bore and the tongue shaft upper and bottom are different.
  • the invention can also be used with all Tongue needles are used where one-sided Wear of the bearing bore from other than those described Reasons occurs.
  • the distance between the edge of the bearing bore and the tongue shaft underside half the distance between the edge of the bearing bore and the tongue shaft top.
  • the ratio of these distances 1: 3 is advantageous.
  • the latch needle shown in FIGS. 1 and 2 has one Needle shaft 1, which carries a hook 2 at one end and at the other end one or more feet and a tracking may have, which in a known manner with the Lock parts, for example, interact with a knitting machine and are not shown further.
  • a tongue slot 5 is milled into the needle shaft 1, which takes up a tongue 6.
  • the needle tongue 6 is wedge-shaped in shape, the The tip of the wedge forms a toothed tongue spoon 7, which, as can be seen from FIG. 1, with the tongue 6 closed rests on the hook tip 8.
  • a tongue shaft 9 follows.
  • the tongue shaft bottom 10 limited together when tongue 6 closed with the hook 2 the thread space 11 of the needle.
  • the tongue shaft top 12 is the tongue shaft underside 10 across from.
  • the tongue shaft 9 is a continuous cylindrical Bearing bore 13 arranged, the axis with the Tongue axis 14 is concentric.
  • the bearing bore 13 is arranged so that there are different distances 15, 16 to the tongue shaft top 12 or bottom 10.
  • the distance 15 to the tongue upper side 12 about twice the distance 16 to the underside of the tongue shaft 10.
  • 16 can also be chosen differently. For many practical Use cases have proven to be useful if the (shorter) distance 16 to the underside of the tongue shaft about a third of the distance 15 to the top of the tongue shaft is.
  • the distance 17 of the boundary of the bearing bore 13 to the End of the tongue 6, which lies opposite the tongue spoon 7, is approximately as large as the distance 15 between the edges the bearing bore 13 and the tongue shaft top 12. All distances 15, 16 and 17 are approximately radial from the Boundaries of the bearing bore 13 measured so that the smallest value results, whereby different tongue tongues design deviations are allowed by this rule.
  • the tongue slot 5 opens on the underside of the needle shaft to an opening 18, discharged through the fluff will.
  • the tongue slot 5 is on the side, i.e. across to Longitudinal axis of symmetry of the needle shaft 1 of needle shaft cheeks 19 limited.
  • the tongue 6 is in the tongue slot 5 around an axis bolt 20 forming the tongue axis 14 Play pivoted.
  • the axle pin 20 runs with Game through the bearing bore 13 and is in holes in the needle shaft cheeks 19 held.
  • Fig. 2 the needle tongue 6 is shown in reserve. In in this position, the needle tongue 6 lies on the underside the tongue slot 5 at a point 21 on the needle shaft 1 on.
  • the bearing bore 13 is arranged so that the distance 16th between the edge of the bearing bore 13 and the tongue shaft underside 10 larger than the distance 15 between the Boundary of the bearing bore 13 and the tongue shaft top 12 is.
  • the ratio of the two distances 15, 16 to each other then apply the same preferred reciprocally Values as in the described exemplary embodiment, i.e. Distance 16 to distance 15 is approximately 2: 1 or 3: 1.

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

Claims (5)

  1. Aiguille à clapet pour machines textiles, comportant un clapet d'aiguille qui est monté pivotant autour d'un axe de clapet à l'intérieur d'une fente de clapet dans la tige d'aiguille, par l'intermédiaire d'un trou de palier traversant dans le talon de clapet, caractérisée par le fait que le trou de palier (13) dans le talon de clapet (9) est disposé de telle sorte que les distances (15, 16) entre le bord du trou de palier (13) et les faces supérieure (12) et inférieure (10) du talon de clapet sont différentes.
  2. Aiguille à clapet selon la revendication 1, caractérisée par le fait que la distance (15) entre le bord du trou de palier (13) et la face supérieure (12) du talon de clapet est supérieure à la distance (16) entre le bord du trou de palier (13) et la face inférieure (10) du talon de clapet.
  3. Aiguille à clapet selon la revendication 2, caractérisée par le fait que la distance (15) entre le bord du trou de palier (13) et la face supérieure (12) du talon de clapet est égale à une valeur comprise entre le double et le triple de la distance (16) entre le bord du trou de palier (13) et la face inférieure (10) du talon de clapet.
  4. Aiguille à clapet selon la revendication 1, caractérisée par le fait que la distance (15) entre le bord du trou de palier (13) et la face supérieure (12) du talon de clapet est inférieure à la distance (16) entre le bord du trou de palier (13) et la face inférieure (10) du talon de clapet.
  5. Aiguille à clapet selon la revendication 4, caractérisée par le fait que la distance (15) entre le bord du trou de palier (13) et la face supérieure (12) du talon de clapet est égale à une valeur comprise entre environ la moitié et le tiers de la distance (16) entre le bord du trou de palier (13) et la face inférieure (10) du talon de clapet.
EP94115085A 1993-10-06 1994-09-24 Aiguille à clapet pour des machines textiles Expired - Lifetime EP0647733B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4334051 1993-10-06
DE4334051A DE4334051C1 (de) 1993-10-06 1993-10-06 Zungennadel für Textilmaschinen

Publications (2)

Publication Number Publication Date
EP0647733A1 EP0647733A1 (fr) 1995-04-12
EP0647733B1 true EP0647733B1 (fr) 1998-04-01

Family

ID=6499535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115085A Expired - Lifetime EP0647733B1 (fr) 1993-10-06 1994-09-24 Aiguille à clapet pour des machines textiles

Country Status (6)

Country Link
US (1) US5488840A (fr)
EP (1) EP0647733B1 (fr)
JP (1) JP2983852B2 (fr)
CA (1) CA2133709C (fr)
DE (2) DE4334051C1 (fr)
ES (1) ES2114106T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341630B4 (de) * 2003-09-10 2006-11-16 Groz-Beckert Kg Zungennadel
DE102004049061B4 (de) 2004-10-08 2006-08-24 Groz-Beckert Kg Zungennadel
DE502005009453D1 (de) * 2005-06-09 2010-06-02 Groz Beckert Kg Zungennadel für Textilmaschinen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE616441C (de) * 1932-02-05 1935-07-29 Hosiery Developments Ltd Stricknadel mit mehreren untereinander angeordneten Zungen
FR1040974A (fr) * 1950-08-01 1953-10-20 Aiguille à tricoter
GB836297A (en) * 1958-01-23 1960-06-01 Torrington Co Improvements in or relating to bearings for latch knitting needles
US3934109A (en) * 1972-06-23 1976-01-20 The Torrington Company Latch pivot for latch needle
DE3546037A1 (de) * 1985-03-14 1986-09-18 Ulrich Dipl.-Ing. 7470 Albstadt Hofmann Verfahren zur herstellung der zungenlagerung in strickmaschinennadeln
DE3600621C1 (de) * 1986-01-11 1987-05-07 Groz & Soehne Theodor Zungennadel fuer Textilmaschinen
JPH0223619A (ja) * 1988-07-12 1990-01-25 Seiko Epson Corp 半導体装置の製造方法

Also Published As

Publication number Publication date
JP2983852B2 (ja) 1999-11-29
CA2133709A1 (fr) 1995-04-07
DE4334051C1 (de) 1995-02-16
JPH07150451A (ja) 1995-06-13
US5488840A (en) 1996-02-06
DE59405571D1 (de) 1998-05-07
CA2133709C (fr) 1999-01-26
ES2114106T3 (es) 1998-05-16
EP0647733A1 (fr) 1995-04-12

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