EP0126995B1 - Aiguille à touffeter - Google Patents

Aiguille à touffeter Download PDF

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Publication number
EP0126995B1
EP0126995B1 EP84104811A EP84104811A EP0126995B1 EP 0126995 B1 EP0126995 B1 EP 0126995B1 EP 84104811 A EP84104811 A EP 84104811A EP 84104811 A EP84104811 A EP 84104811A EP 0126995 B1 EP0126995 B1 EP 0126995B1
Authority
EP
European Patent Office
Prior art keywords
eye
needle
looper
area
edge
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
EP84104811A
Other languages
German (de)
English (en)
Other versions
EP0126995A3 (en
EP0126995A2 (fr
Inventor
Walter Beyer
Joachim Beyer
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.)
Jos Zimmermann Firma
Original Assignee
Jos Zimmermann Firma
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 Jos Zimmermann Firma filed Critical Jos Zimmermann Firma
Priority to AT84104811T priority Critical patent/ATE28092T1/de
Publication of EP0126995A2 publication Critical patent/EP0126995A2/fr
Publication of EP0126995A3 publication Critical patent/EP0126995A3/de
Application granted granted Critical
Publication of EP0126995B1 publication Critical patent/EP0126995B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/20—Arrangements or devices, e.g. needles, for inserting loops; Driving mechanisms therefor

Definitions

  • the invention relates to a tufting needle, the shaft adjoining a piston is flat, has a thread groove and near its tip has an elongated eye in the direction of the needle axis, which has a curved upper eye edge at its end facing away from the tip, one side surface of the shaft is chamfered to one of its longitudinal edges by a chamfer and to its other longitudinal edge by a bias cut that extends into the eye region.
  • Such tufting needles are either fixed individually in the desired division on a needle bar or combined with several identical needles to form needle modules, which in turn are then fixed on the needle bar,
  • a tufting needle When using such a tufting needle, it is pushed through a base fabric, the thread to be processed running through the eye of the needle. After piercing the base fabric, a looper engages the area between a side surface of the needle and the associated thread by a movement essentially transverse to the needle axis, in order to hold the thread in place when the needle moves backwards and in this way to form loops which then can be cut depending on the desired goods.
  • the looper assigned to each needle is still pivoted transversely to the needle during the downward movement, the chamfer provided on the needle helping to keep the wear and tear when the looper and needle interact.
  • the looper glides over the bas cut in the area of the eye. This cut is used in the cooperation between the needle and the looper to avoid elevations in the needle during the retraction of the needle, which could lead to the looper jumping and to sudden stress.
  • the object of the present invention is now to create a tufting needle which excludes such errors even in particularly fast-running tufting machines.
  • the invention provides for a tufting needle of the type mentioned at the outset that the area of the upper edge of the eye which is furthest away from the tip is offset relative to the central axis of the eye in the direction of the chamfer.
  • the formation of the eye according to this innovation means that the thread in the eye when the needle interacts with the looper, at least with its larger part, does not lie in the area of the bias cut. It is therefore not possible for the thread to move towards the looper when there is a tensile load.
  • the tufting needle according to the invention can be designed in such a way that the area of the upper edge of the eye which is furthest away from the tip is offset by 10 to 35% of the width of the eye in relation to the central axis of the eye in the direction of the chamfer.
  • the optimal design of the eye of the needle with regard to its upper edge is primarily dependent on the yarn to be used.
  • the tufting needle can be designed in such a way that the furthest area of the upper edge of the eye facing away from the tip is offset by 20% of the width of the eye in relation to the central axis of the eye in the direction of the chamfer.
  • the tufting needle according to FIG. 1 has a shaft 1 which has a fillet 3 in the area in which the needle cooperates with a looper 2.
  • the looper 2 moves in the direction of the arrow 4 and then comes to lie between the shaft 1 of the needle and a thread 5.
  • the chamfer 3 is preceded by a chamfer 6. This chamfer 6 causes the side face of the needle shown in FIG. 1 to rise slightly as seen in the direction of movement of the looper 2.
  • the shaft 1 of the needle is also provided with an eyelet 7 which is elongated in the direction of the needle axis 8 and is symmetrical to it.
  • the eye 7 has an upper curved edge 9, a front edge 10, a rear edge 11 and a lower edge 12. The distance between the front edge 10 and the rear edge 11 corresponds to the width of the eye.
  • the shaft 1 ends in a needle tip 13.
  • a bias cut 14 is provided in the area of the eye 7 and the needle tip 13, which represents an inclined surface that slopes away from the eye area to the rear longitudinal edge of the needle.
  • This bias cut 14 causes the looper 2 to slide out of the fillet 3 as the needle moves upward, without jumps or bumps in the area of the needle tip 13.
  • the inclination of this bias grinding essentially eliminates the inclined position of the needle side surface relative to the looper 2 which is due to the twisting of the needle. Twist and bias grinding are known designs for such needles and are not the subject of the innovation.
  • FIGS. 2-6 corresponds, with the exception of the upper eye edge 9, to the known tufting needle described above. In this respect, it is therefore not necessary to discuss FIGS. 2-6 in detail, for which the same reference numerals are also used as in FIG. 1.
  • the upper eye edge 9 is no longer symmetrical to the needle axis 8 in the embodiment according to the innovation. Although this upper eye edge 9 is still curved, it has its highest point or its region 20 furthest away from the tip 13 off-center, namely in the direction offset on the front edge 10 or in the direction of the chamfer 6. In the exemplary embodiment, this offset is 20%, i.e. the area 20 is offset by 20% of the eye width in the direction of the front edge 10 or the chamfer 6. Accordingly, the thread 5 is offset by 20% of the eye width in the same direction. This means that the thread 5 is essentially no longer above the bias cut 14, which in the known tufting needle described above has enabled the thread to shift in the direction of the looper 2. The exclusion of such a shift prevents the thread from getting into the path of the looper and being able to be divided by it.
  • the offset of the area 20 should preferably be in the range of 10-35% of the width of the eye.
  • the proposed tufting needle can be connected as a single needle to a bar or can be combined into modules.
  • the needle can also have any desired piston design, in particular a round or a flat piston. Oval piston designs are also easily possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Fats And Perfumes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Claims (3)

1. Une aiguille à tufting, dont la tige raccordée à une piston est plate, et munie d'une rainure et d'une fente allongée dans le sens de l'axe de l'aiguille, la fente en question étant munie à l'extrémité opposé à la pointe, d'une bord supérieur arrondi par lequel une face latérale de la tige est biseautée sur le bord longitudinal par un biseau et sur l'autre bord longitudinal du fait d'un affutage en biais qui se prolonge dans la fente, caractérisé par le fait que la zone de bord supérieur de la fente (9) le plus éloigné et opposé à la pointe (13) est décalée par rapport à l'axe médian (8) de la fente (7) dans le sens du biseau (6).
2. Un aiguille à tufting, selon la revendication 1, caractérisé par le faite que la zone (20) du bord supérieur de la fente (9) le plus éloigné et opposé à la pointe (13) est décalée de 10 à 35 % de la largeur de la fente par rapport à l'axe médian (8) de la fente (7) dans le sens du biseau (6).
3. Une aiguille à tufting, selon la revendication 2, caractérisé par le faite que la zone (20) du bord supérisur de la fente (9) le plus éloigné et opposé à la pointe (13) est décalée de 20 % de la largeur de la fente par rapport à l'axe médian (8) de la fente (7) dans le sens du biseau (6).
EP84104811A 1983-05-21 1984-04-28 Aiguille à touffeter Expired EP0126995B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104811T ATE28092T1 (de) 1983-05-21 1984-04-28 Tuftingnadel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838315049U DE8315049U1 (de) 1983-05-21 1983-05-21 Tuftingnadel
DE8315049U 1983-05-21

Publications (3)

Publication Number Publication Date
EP0126995A2 EP0126995A2 (fr) 1984-12-05
EP0126995A3 EP0126995A3 (en) 1985-07-03
EP0126995B1 true EP0126995B1 (fr) 1987-07-01

Family

ID=6753563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104811A Expired EP0126995B1 (fr) 1983-05-21 1984-04-28 Aiguille à touffeter

Country Status (6)

Country Link
US (1) US4563961A (fr)
EP (1) EP0126995B1 (fr)
JP (2) JPS6034664A (fr)
AT (1) ATE28092T1 (fr)
DE (2) DE8315049U1 (fr)
DK (1) DK155533C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545692A1 (de) * 1985-12-21 1987-06-25 Singer Spezialnadelfab Nadel fuer tuftingmaschinen
DE19600328C1 (de) * 1996-01-08 1997-02-13 Zimmermann Jos Gmbh & Co Kg Tuftingnadeln für ein Nadelmodul
US6723107B1 (en) * 1999-04-19 2004-04-20 Orthopaedic Biosystems Ltd. Method and apparatus for suturing
JP4043319B2 (ja) * 2002-08-23 2008-02-06 オルガン針株式会社 ミシン針
US6832568B2 (en) * 2003-01-31 2004-12-21 Spencer Wright Industries, Inc. Tufting machine needle
DE202004004401U1 (de) * 2004-03-20 2004-05-19 Groz-Beckert Kg Geprägte Tuftingnadel
DE102019219814A1 (de) * 2019-12-17 2021-06-17 Pfaff Industriesysteme Und Maschinen Gmbh Stichbildungswerkzeug-Baugruppe für eine Nähanlage sowie Nähanlage mit einer derartigen Baugruppe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US228446A (en) * 1880-06-08 Sewing-machine needle
US3469548A (en) * 1967-06-01 1969-09-30 Singer Co Needle for sewing or the like
US3858537A (en) * 1973-06-25 1975-01-07 Singer Co Self-threading sewing machine needle
US3929082A (en) * 1975-04-16 1975-12-30 Singer Co Needles for tufting or the like
US3954072A (en) * 1975-05-28 1976-05-04 The Singer Company Needles for tufting or the like
GB1601812A (en) * 1977-03-09 1981-11-04 Johansson A Tufting
JPS54121869A (en) * 1978-03-09 1979-09-21 Renaruto Fuooku Kaato Method and needle for knitting connection

Also Published As

Publication number Publication date
US4563961A (en) 1986-01-14
JPH0594292U (ja) 1993-12-24
DE8315049U1 (de) 1983-09-29
ATE28092T1 (de) 1987-07-15
DK155533C (da) 1989-09-18
DE3464507D1 (en) 1987-08-06
EP0126995A3 (en) 1985-07-03
EP0126995A2 (fr) 1984-12-05
JPS6034664A (ja) 1985-02-22
JPH0638147Y2 (ja) 1994-10-05
DK249384A (da) 1984-11-22
DK155533B (da) 1989-04-17
DK249384D0 (da) 1984-05-21

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