EP2284308A1 - Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte - Google Patents

Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte Download PDF

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Publication number
EP2284308A1
EP2284308A1 EP09167092A EP09167092A EP2284308A1 EP 2284308 A1 EP2284308 A1 EP 2284308A1 EP 09167092 A EP09167092 A EP 09167092A EP 09167092 A EP09167092 A EP 09167092A EP 2284308 A1 EP2284308 A1 EP 2284308A1
Authority
EP
European Patent Office
Prior art keywords
needle
coupling
knitting machine
head
coupling part
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
EP09167092A
Other languages
German (de)
English (en)
Other versions
EP2284308B1 (fr
Inventor
Kuno Horn
Jürgen Schneider
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 PT91670927T priority Critical patent/PT2284308T/pt
Priority to EP09167092.7A priority patent/EP2284308B1/fr
Priority to KR1020100072711A priority patent/KR20110014098A/ko
Priority to JP2010171445A priority patent/JP6220489B2/ja
Priority to CN201010289354.4A priority patent/CN101994205B/zh
Priority to TW099125551A priority patent/TWI418678B/zh
Priority to US12/848,585 priority patent/US7971453B2/en
Publication of EP2284308A1 publication Critical patent/EP2284308A1/fr
Priority to KR1020170142477A priority patent/KR101884679B1/ko
Application granted granted Critical
Publication of EP2284308B1 publication Critical patent/EP2284308B1/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
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • 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
    • 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 knitting machine needle, in particular a Ripplopennadel.
  • the dial forms an annular bed for receiving the dial needles, which are also referred to as Rippnadeln.
  • a corresponding small circular knitting machine is for example the WO 2009/013773 A1 refer to.
  • the knitting machine described therein has a knitting cylinder with vertically arranged cylinder needles and a dial with horizontally arranged rib needles.
  • the rib needles are moved by a needle selection mechanism located above the dial.
  • the needle selection mechanism acts via pivotally mounted selections on the Rippnadeln.
  • connections are also in knitting machines known in which, for example, a knitting machine needle is connected to a selection or coupling part, wherein such a connection may allow a pivoting movement of the selection or the coupling part.
  • These connections are releasable connections which are preferably releasable with respect to the transverse direction to the longitudinal axis of the knitting machine needle.
  • the knitting machine needle according to the invention has a needle body which is connected to a selection part.
  • the selection part can also be designed as a coupling part.
  • a hinge assembly or hinge assembly is used, which has an arranged on the needle coupling cutout and arranged on the coupling part disc head in one embodiment.
  • the coupling cutout is provided on the coupling part, while the disk head is formed on the needle body.
  • the disk head is provided in each case at its periphery with a bearing surface, which is associated with a trained on the coupling neck abutment surface. This arrangement of the bearing surface and abutment surface can accomplish a precise low-backlash and smooth-running storage.
  • a bearing surface of a coupling cutout encloses a disk head on its circumference at least on three sides and thus forms a joint arrangement.
  • the three-sided enclosing is achieved by the bearing surface extending through an angle of more than 180 ° around the pivot axis of the joint.
  • the disk head is secured in the cutout in all directions radially to the pivot axis.
  • the hinge arrangement formed by the disk head and the coupling cutout defines a pivot axis.
  • the pivot axis is oriented in a Z-direction, which is to be understood transversely to the needle body.
  • the longitudinal direction of the needle body is considered as the X direction.
  • Perpendicular to both the X and Z directions is the Y direction, which is also referred to as the high direction.
  • the coupling part extends in this vertical direction or Y-direction. Depending on the installation situation, the coupling part may also extend in a direction that deviates from the Y direction.
  • the coupling part is coupled to the needle body at least in the X direction.
  • mutually matching and at least temporarily mutually abutting transverse bearing surfaces are provided on the coupling part and the needle body. These transverse bearing surfaces are at least then in contact with each other when the coupling part and the needle body are in such a pivotal position to each other, as it is assumed when the coupling part and the needle in the Rippusion or another needle bed are to be mounted. For example, this is a position in which the coupling part is slightly inclined to the vertical direction. By this measure it is prevented that the coupling part and the needle body when mounting, ie fall apart unintentionally when inserting into the needle bed. The handling of the existing of the needle body and the coupling part unit is greatly facilitated.
  • the coupling cutout can be a C-shaped cutout. Its edge thus follows in sections a circular arc.
  • the U-cut is in principle a falling apart of coupling part and needle body in the Y direction possible.
  • the coupling between the needle body and coupling part is given in both the X and Y directions. In both cases, the coupling in the Z direction is effected by the transverse bearing surfaces.
  • the transverse bearing surfaces may be disposed within the disk head and in the region bounded by the coupling cutout or outside thereof. This applies both to the arrangement of the disk head on the coupling part as well as for embodiments in which the disk head is arranged on the needle body. If the transverse bearing surfaces are arranged in the area bounded by the coupling cutout, the disk head is preferably divided longitudinally. It thus has two head halves, which may be arranged symmetrically with respect to the XY plane. In this case, the securing of the disk head on a wall extending in the Y-direction between its head halves can take place by means of at least one projection which, for example, extends from a head half into an opening in the centrally arranged wall. Preferably, the projection in the opening has so much play that the pivot bearing not by the projection and the opening but only by the bearing surface and the abutment surface is effected.
  • FIG. 1 is a knitting machine needle 1 illustrated, which is prepared for use in a dial and thus can be referred to as Ripple needle or Rippnadel.
  • Ripple needle or Rippnadel.
  • the invention is not limited to Rippnadeln, but can also apply to knitting machine needles that are not used in dials.
  • the needle body 2 is preferably formed as an elongated flat part. At one end it is provided with a hook 4, which serves the stitch formation.
  • the hook 4 may be associated with other elements, such as a pivotally mounted in the vicinity of the hook 4 tongue 5. This is pivotally mounted in a tongue slot 6 so that its end 7 cover the tip of the hook 4 and thus close the hook 4 or can also go in reserve in a position remote from the hook 4, to release the hook 4.
  • a cap spring 9 may be provided, which is held at one end 10 fixed to the needle body 2. Its tip 11 may rest against the flank 8 or the bottom of a depression located there. Between the cap spring 9 and the flank 8 of the needle body 2, a puncture chamber 12 is preferably defined, through which another needle for stitch transfer can pierce.
  • the needle body 2 extends to a remote from the hook 4 end 13.
  • a hinge assembly 14 for pivotally mounting the coupling part 3 formed on the needle body 2.
  • This hinge assembly 14 defines a pivot axis that coincides with the Z direction coincides and is thus oriented parallel to the pivot axis of the tongue 5.
  • the X direction coincides with the longitudinal direction of the needle body 2.
  • the Z direction is the associated transverse direction and the Y direction is the associated vertical direction.
  • FIG. 2 shows a simplified isometric side view with the associated coordinate directions X and Y.
  • the disk head 15 is attached to the coupling part 3 and is therefore referred to as a clutch disk head 15.
  • the coupling cutout 16 is attached to the needle body 2 and is therefore referred to as a needle coupling cutout 16.
  • the disk head 15 is preferably a circular disk. In other words, its edge follows more than 180 ° in a circular arc. It is possible that this arc is interrupted by recesses (not shown).
  • the coupling cutout 16 is a C-shaped cutout. Its edge follows a circular arc, whose radius is only slightly larger than the radius of the edge of the disk head 15.
  • the disk head 15 wiest in Z-direction flat sides whose distance from one another determines the thickness D1 of the disk head 15.
  • the section of the needle body 2 which surrounds the coupling cutout 16 likewise has flat sides whose spacing determines the thickness D2 of the needle body in this area. This thickness D2 coincides with the aforementioned thickness D1.
  • FIG. 1a referenced, the a horizontal section through the knitting machine needle 1 after FIG. 1 approximately at the level of the dashed line 17 illustrated. The thickness ratios are also comparable below this line 17 approximately at the height of the line 30.
  • the coupling disk head 15 is provided on its outer circumference with an abutment surface 18. This follows a circular arc and is thus cylindrical or partially cylindrical. However, it can also be formed spherical or slightly conical.
  • the associated needle coupling cutout 16 has a bearing surface 19 which encloses the abutment surface 18 ( FIG. 3 ).
  • the coupling disk head is mounted pivotably in the needle coupling cutout 16 with little play.
  • the abutment surface 18 is guided by the bearing surface 19.
  • a transverse securing means 20 is arranged on the hinge assembly 14 or in the vicinity thereof. This serves to keep the clutch disk head 15 captive in the needle coupling recess 16 when the knitting machine needle 1 is removed from the needle bed, ie, for example, the dial.
  • the transverse securing means 20 comprises a nose 21 formed on the coupling part 3 whose thickness to be measured in the Z direction is smaller than the thickness D1 of the coupling part 3 to be measured in the same direction.
  • the nose 21 is here, for example, on the needle body 2 formed recess in the form of a slot 22, which is adapted to receive the nose 21.
  • the slot 22 may be disposed adjacent to or in direct connection with the needle coupling recess 16. The spatial assignment is preferably made such that the nose 21 is in the slot 22 when the coupling part 3 in an assembly, disassembly position starting from the position to FIG. 2 slightly to the left, that is inclined towards the hook 4.
  • the nose 21 preferably has two flat transverse bearing surfaces 21a, 21b arranged parallel to each other
  • the slot 22 is preferably bounded by two mutually parallel transverse bearing surfaces 22a, 22b.
  • the transverse bearing surfaces 21a, 21b are supported on the transverse bearing surfaces 22a, 22b in the Z-direction.
  • the nose 21 and the slot 22 are centered with respect to the needle body 2 and the coupling part 3 and symmetrical to the median plane extending in the X and Y directions.
  • the dimensions of the nose 21 and its associated slot 22 may be such that in the assembly, disassembly position between the transverse bearing surface 21a, 21b of the nose 21 and its associated transverse bearing surface 22a, 22b of the slot 22, a frictional connection is formed and thus the coupling part 3 is frictionally connected to the needle body 2.
  • the transverse bearing surfaces 21a and 21b are arranged conically, converging at an acute angle and thus decreases the thickness of the nose 21 in the direction of its tip.
  • the slot 22 may then be formed congruent to the nose 21, wherein the opening of its nose 21 associated with the tip has a greater width than the slot bottom. As a result, the nose 21 can be easily inserted into the slot 22.
  • the conicity of the nose 21 and the slot 22 may differ from each other and be formed differently strong.
  • this can be reciprocated by a corresponding movement of the coupling part in the X direction.
  • the coupling part 3 can perform a pivoting movement to move the needle body 1 to effect the knitting operation in the X direction forward or backward.
  • the clutch disc head 15 performs a limited rotational movement within the needle coupling section 16.
  • the conditions may be such that the lug 21 is permanently inside the slot 22. However, it is also permissible that the nose 21 leaves the slot 22.
  • the coupling part 3 and the needle body 2 are held together by the flanks of the respective needle channel, provided it is ensured that the hinge assembly 14 does not leave the needle channel.
  • the nose 21 may also be part of the needle body 2, while then the slot 22 is attached to the coupling part 3. It is both possible to arrange the combination of nose 21 and slot 22 on the hook 4 side facing the coupling part 3, similar to in FIG. 1 represented as well as at the rear, the end 13 facing side. Also, two lugs 21, one on the hook 4 side facing and on the opposite side facing the end 13 may be provided on the coupling part 3, then corresponding slots 22 may be provided on both sides of the hinge assembly 14 to the respective Nose 21 record. Also, on both sides of the hinge assembly 14 on the needle body 2 lugs 21 may be arranged, which engage in corresponding slots 22 of the coupling part 3.
  • FIG. 4 illustrates a further modified embodiment of the knitting machine needle according to the invention 1.
  • This embodiment differs by the formation of the hinge assembly 14.
  • the disk head is now associated with the needle body 2, which is why it is referred to here as a needle-disk head 23.
  • the coupling cutout is here associated with the coupling part 3, which is why it is referred to here as coupling part coupling cutout 24.
  • the transverse securing means 20 is disposed outside of the hinge assembly 14. However, it is equally possible in all these embodiments to arrange the transverse securing means 20 within the hinge assembly 14. This will be the example of an embodiment after FIG. 5 explained.
  • the coupling cutout is merely exemplified as a needle coupling cutout 16 '. Its abutment surface 18 follows a circular arc-shaped curvature of about 180 °. This is a U-shaped coupling cutout.
  • the coupling disc head 15 is subdivided into head halves 15a, 15b, between which a head slot 26 is formed.
  • the head slot 26 preferably has a slot width which is slightly larger than the thickness of the wall 25, as for example also FIG. 6 is apparent.
  • the bearing surface 19 extends more than 180 ° around the respective disk head 15 and 23 around, so a C-shaped coupling cut is formed, the fuse in the Y direction in the embodiment according to FIG. 5 formed by a captive 27, to which a formed in the wall 25 opening 28 belongs.
  • the opening 28 is preferably set concentrically to the pivot axis (hinge axis) defined by the abutment surface 18 and the bearing surface 19.
  • At least one of the head halves 15a, 15b, preferably both, are provided at the opening 28 with a protruding into the opening 28 projection.
  • the protrusion 29 illustrated there on the head half 15b is generated, for example, by an inwardly directed plastic deformation in this area of the head half 15b.
  • the projection 29 and the opening 28 are not used for storage and thus for fixing a hinge axis, but only as captive.
  • the pivot bearing is preferably formed by the abutment surface 18 and the bearing surface 19.
  • a knitting machine needle is provided with pivotally mounted on this coupling part.
  • Needle bodies serve transverse bearing surfaces 21a and b and 22a and b, which are at least temporarily in abutment with each other.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP09167092.7A 2009-08-03 2009-08-03 Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte Active EP2284308B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
PT91670927T PT2284308T (pt) 2009-08-03 2009-08-03 Agulha de máquina de tricotar com peça de acoplamento para evitar perda
EP09167092.7A EP2284308B1 (fr) 2009-08-03 2009-08-03 Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte
KR1020100072711A KR20110014098A (ko) 2009-08-03 2010-07-28 손실 방지 커플링 구성품을 갖는 닛팅 기계 니들
JP2010171445A JP6220489B2 (ja) 2009-08-03 2010-07-30 紛失防止の結合部品を備えた編み機針
CN201010289354.4A CN101994205B (zh) 2009-08-03 2010-08-02 具有防止失位的联接部件的针织机织针
TW099125551A TWI418678B (zh) 2009-08-03 2010-08-02 具有防脫落耦合組件的針織機織針
US12/848,585 US7971453B2 (en) 2009-08-03 2010-08-02 Knitting machine needle with loss-proof coupling component
KR1020170142477A KR101884679B1 (ko) 2009-08-03 2017-10-30 손실 방지 커플링 구성품을 갖는 닛팅 기계 니들

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09167092.7A EP2284308B1 (fr) 2009-08-03 2009-08-03 Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte

Publications (2)

Publication Number Publication Date
EP2284308A1 true EP2284308A1 (fr) 2011-02-16
EP2284308B1 EP2284308B1 (fr) 2017-11-08

Family

ID=42061119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09167092.7A Active EP2284308B1 (fr) 2009-08-03 2009-08-03 Aiguille de machine à tricoter dotée d'un élément d'embrayage protégé contre la perte

Country Status (7)

Country Link
US (1) US7971453B2 (fr)
EP (1) EP2284308B1 (fr)
JP (1) JP6220489B2 (fr)
KR (2) KR20110014098A (fr)
CN (1) CN101994205B (fr)
PT (1) PT2284308T (fr)
TW (1) TWI418678B (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965385A1 (de) * 1969-12-30 1971-07-15 Harry Apprich Vorrichtung zur Herstellung einer Maschenware
DE4441389C1 (de) * 1994-11-21 1996-06-27 Harting Elektronik Gmbh Nadelauswahlplatine
EP1619282A1 (fr) * 2004-07-23 2006-01-25 Groz-Beckert KG Aiguille pour un système formant des mailles
WO2009013773A1 (fr) 2007-07-24 2009-01-29 Santoni S.P.A. Métier à tricoter circulaire pour chaussettes doté d'aiguilles sur le plateau

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2025462A (en) * 1933-07-13 1935-12-24 Lombardi Knitting Machine Co I Adjustable element for knitting machines
GB1281391A (en) * 1969-02-25 1972-07-12 Bentley Machine Dev Company Lt Improvements in needle operating means in knitting machines
US3779042A (en) * 1971-10-14 1973-12-18 Singer Co Circular knitting machines for producing a patterned fabric
US3850011A (en) * 1972-06-23 1974-11-26 Torrington Co Latch pivot for latch needle
CH657393A5 (de) * 1982-12-22 1986-08-29 Dubied & Cie Sa E Elektromagnetisch gesteuerte nadelauswahlvorrichtung.
JP2946323B2 (ja) * 1997-05-01 1999-09-06 株式会社島精機製作所 横編機の複合針
DE19822862C2 (de) * 1998-05-22 2001-05-17 Sipra Patent Beteiligung Strickmaschinennadel und damit ausgerüstete Strickmaschine
DE10111930C2 (de) * 2001-03-13 2003-02-27 Groz Beckert Kg Systemteil
US7895862B2 (en) * 2006-07-07 2011-03-01 Santoni S.P.A. Knitting machine with latch needles and without sinkers
CN101314887B (zh) * 2008-07-16 2011-04-06 冯加林 一种适用于电磁选针的织针组合
US7836730B1 (en) * 2010-04-05 2010-11-23 Pai Lung Machinery Mill Co., Ltd. Circular knitting machine jacquard needle equipped with a return structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965385A1 (de) * 1969-12-30 1971-07-15 Harry Apprich Vorrichtung zur Herstellung einer Maschenware
DE4441389C1 (de) * 1994-11-21 1996-06-27 Harting Elektronik Gmbh Nadelauswahlplatine
EP1619282A1 (fr) * 2004-07-23 2006-01-25 Groz-Beckert KG Aiguille pour un système formant des mailles
WO2009013773A1 (fr) 2007-07-24 2009-01-29 Santoni S.P.A. Métier à tricoter circulaire pour chaussettes doté d'aiguilles sur le plateau

Also Published As

Publication number Publication date
TWI418678B (zh) 2013-12-11
KR20170124498A (ko) 2017-11-10
EP2284308B1 (fr) 2017-11-08
US7971453B2 (en) 2011-07-05
CN101994205B (zh) 2013-01-23
TW201128012A (en) 2011-08-16
CN101994205A (zh) 2011-03-30
JP2011038236A (ja) 2011-02-24
PT2284308T (pt) 2017-12-13
JP6220489B2 (ja) 2017-10-25
KR20110014098A (ko) 2011-02-10
KR101884679B1 (ko) 2018-08-02
US20110023553A1 (en) 2011-02-03

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