EP1094139B1 - Schiebernadel mit asymmetrisch geteiltem schieber - Google Patents

Schiebernadel mit asymmetrisch geteiltem schieber Download PDF

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Publication number
EP1094139B1
EP1094139B1 EP00122042A EP00122042A EP1094139B1 EP 1094139 B1 EP1094139 B1 EP 1094139B1 EP 00122042 A EP00122042 A EP 00122042A EP 00122042 A EP00122042 A EP 00122042A EP 1094139 B1 EP1094139 B1 EP 1094139B1
Authority
EP
European Patent Office
Prior art keywords
slider
slide
needle
springs
groove
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
EP00122042A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1094139A1 (de
Inventor
Sigmar Majer
Bernhard Schuler
Kurt Wiedenhöfer
Toshiaki Morita
Kenji Kitahara
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
Shima Seiki Mfg Ltd
Original Assignee
Groz Beckert KG
Shima Seiki Mfg Ltd
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, Shima Seiki Mfg Ltd filed Critical Groz Beckert KG
Publication of EP1094139A1 publication Critical patent/EP1094139A1/de
Application granted granted Critical
Publication of EP1094139B1 publication Critical patent/EP1094139B1/de
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
    • D04B35/32—Devices for removing lint or fluff
    • 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
    • D04B35/06—Sliding-tongue needles

Definitions

  • the invention relates to a needle with the features of the preamble of claim 1 or claim 2.
  • Slide needles as they are used for flat knitting machines or circular knitting machines, have a needle body with a slide channel in which a slider is slidably mounted. At the free end of the needle body, a needle head in the form of a hook is formed, which are opened or closed by the slider can.
  • the knitting machine has at least one flat or a cylindrical and / or a plate-shaped needle bed, in each of which a plurality of needle channels are formed.
  • the slider needles are longitudinally slidably disposed in these needle channels, performing a longitudinal reciprocating motion during the knitting operation. Tuned to the slider must be moved back and forth.
  • the slider has a so-called foot, which serves as a motion transmission means and is engaged with cam surfaces. Such curves are, for example, the flanks of a so-called castle channel.
  • both the head and the slider of the needle come into contact with the yarn, which may cause dust or filament deposits on the slider, depending on the nature and the dirt load of the yarn.
  • dust particles adhering to the wool, salt crystals resulting from wool wash, sand or short filaments may be deposited on the slider.
  • By the reciprocating movement of the slider these particles can get into the slide channel, which can lead to difficulties.
  • the arrangement is made in the slider needle according to DE 44 30 705 A1.
  • the slider formed by two slide springs, which spread laterally past the hook, whereby dirt deposits can get between the slide springs.
  • the slider needle has a needle body with a needle channel that guides a slider.
  • the slide is formed by a slide body, are held on the two symmetrical trained slide springs.
  • the slide springs are spread periodically during operation by the needle head, whereby dirt and fiber residues can get into the gap defined between the slide springs.
  • a slider needle is also known whose needle body has a slide channel with rear openings.
  • the two side walls of the slide channel are formed continuously without openings and define between each other the slide channel.
  • the slide held therein has slots, which are penetrated by guide pins.
  • the guide pins are each anchored in the slider side walls.
  • the slider is integrally formed.
  • the split slider is less susceptible to dirt when dirty.
  • the slide channel at least one space is available in which fiber remains can accumulate without spreading the slide springs.
  • the slide springs are formed asymmetrically to each other. This means that they can only partially overlap in the slide channel and thus do not fill parts of the slide channel. For this reason, additional buffer space for receiving foreign substances is created in the slide channel, so that jamming of the slide is less likely and occurs less quickly.
  • the slide channel is additionally open at the side, that is, at least one of the channel side walls has an opening or recess. Alternatively or additionally, one or more openings may be provided in the bottom of the slide channel. The lateral opening may be formed by a cutout in the slide channel wall.
  • Recesses in the slider springs initially allow deposits accumulated between the slider springs to pass outwardly from the gap formed between the slider springs to the slider channel walls and through the openings thereof.
  • the needle according to the invention thus proves to be less susceptible to contamination.
  • the slide springs have recesses which are arranged at different locations of the two slide springs.
  • the recesses create at the same time recording rooms and passages for in the Slider channel got dirt and also prevent pinching the dirt between the slide springs. This is partially true even if the recesses are arranged overlapping each other in regions. The overlap of the recesses minimizes areas between the slider springs, in which dirt could settle and spread the slider springs.
  • An advantageous embodiment of the slider needle has a multi-piece slide, which is formed from a slider body and slide springs. These parts (slide springs and slide body) may be releasably or permanently connected to each other.
  • the slide springs have longitudinally through the slide channel extending, staggered web portions and web portions which preferably do not overlap each other.
  • the web sections and land regions preferably extend through the gate channel and are guided laterally by the channel side walls.
  • a guide parallel to the slider walls is obtained by guide sections into which the bridge sections pass. In the invention according to claim 2, these guide sections, relative to the longitudinal direction, offset from each other, so that the dirt can not accumulate between the guide sections.
  • the slide springs may be formed asymmetrically between the guide portions and a respective mesh support portion, which also leads here to a reduced Schmutzakkumulationstendenz and Verklemmungsneist.
  • the slider springs are thus formed as a whole largely overlapping.
  • FIG. 1 illustrates a slider needle 1, to which a needle body 2, a slider 3, consisting of two slide springs 22, 23 and a slider body 21 belong.
  • the needle body 2 is provided for insertion into the needle channel of a knitting machine and has for this purpose an elongated needle shaft 4, which carries a hook 5 at its free end.
  • the needle shaft 4 extends away from the hook 5 in a straight longitudinal direction.
  • a slot-shaped slide channel 7 which is bounded on both sides by two channel side walls 8, 9.
  • the channel side walls 8, 9 are flat, plate-shaped structures which protrude at a distance parallel to each other from the needle body 2. Starting from a slot beginning 11, they initially have an increasing height.
  • the height of the side walls 8, 9 is then approximately constant. After a further increase in height, the side walls 8, 9 then continue in an area 14 with increased height.
  • the slide channel 7 therefore has two different guide sections, which are formed by the regions 12, 14.
  • the channel side walls 8, 9 are based on the longitudinal direction of the needle main body 2 starting from the hook 5, at least so long that the side walls during the practical use of the needle 1 does not move completely out of a needle channel. As a result, the needle 1 receives at least a portion of its leadership.
  • the needle base body 2 is provided with an elongate cutout 15, which is in the longitudinal direction is bounded on one side by the channel side walls 8, 9 and on another side by a projection 16.
  • the cutout 15 forms a region in which the slide channel 7 is open.
  • lateral or bottom-side openings may also be provided.
  • the slider 3 has a slider body 21 (FIG. 4) and two slide springs 22, 23, which are held on the slider body 21. It is essentially formed by an elongate, rectangular in cross-section body on which one or more feet 24 are formed. These protrude at right angles from the slider body 21 and serve to drive the same. In operation, they engage in the lock channel of a lock and are moved by this relative to the needle body 2.
  • the slider body 21 In its front region, the slider body 21 has a receiving region 82, with which the slide springs 22, 23 are connected.
  • the slider body 21 On its side facing the needle body 2, the slider body 21 has a plane surface 84. The thickness of the slider body 21 is approximately the same as that of the needle body 2.
  • the slider 3 may be integrally formed from the slider body 21 and the two slide springs 22, 23, which may be releasably or permanently connected to the slider body 21. In operation, they form a common part.
  • the slider spring 22 is essentially formed by an elongated, rectangular in cross section body. Starting from its end portion 81 extends a web portion 34 to a guide portion 35 which is arranged so that it maintains a clear distance to the bottom of the slide channel 7, when the slider spring 22 is inserted or attached in or on the needle body 2. In other words, the slider spring 22 has a recess or recess 34a in the web region 34.
  • a guide section 35 is formed which has approximately the full height of the slide channel 7, protruding beyond it in special applications.
  • the guide portion 35 is provided with a lower abutment surface 37, which rests in use on the flat bottom of the slide channel 7 and thus marked in Figure 3 and its height.
  • the guide section 35 is bounded on its side facing the hook 5 or stitch-holding nose 33 by a step 38, which is aligned at right angles to the contact surface 37 and here again merges into a narrow web section 39.
  • This web portion 39 carries a plate-shaped, larger portion 41 which defines a mesh support shoulder 42 on its side facing the stitch holder 33.
  • slide spring 23 is constructed to the slider spring 22 partially asymmetrical. Both slide springs 22, 23 are not mirror-symmetrical with respect to an imaginary plane between them.
  • a web region 47 extends to a guide section 48, into which it merges with a steep step 49.
  • the slider spring 23 is from above with a recess 47a provided, which preferably has a lateral overlap with the web portion 34 of the slider spring 22. Both recesses 34a, 47a may have a size such that they partially overlap at their broad sides.
  • a contact surface 52 is formed on the slider spring 23. This lower contact surface 52 abuts against the bottom of the slide channel 7.
  • the guide portion 48 of the slider spring 23 is offset against the guide portion 35 of the slider spring 22 in the longitudinal direction such that the steps 38, 49 are arranged at a distance from each other.
  • the slide springs 22, 23 are formed so that the two stages 38, 49 overlap or are aligned with each other. Largely without coverage, the web portions 34, 47 are arranged. This can be seen in particular from FIG. 1 and FIG. 5.
  • the guide section 48 of the slider spring 23 merges via a web section 53 without transition or through a cutout (not shown) into a plate-like section 54. This is mirror-symmetrical to the portion 41 of the slider spring 22 and defines a mesh support shoulder 55 fixed.
  • FIG. 5 The design of the slider needle 1 and in particular of the slide springs 22 and 23 is shown in detail in FIG.
  • the receiving region 82 of the slider body 21 engages in the cutout 15 of the needle body 2.
  • the slide springs 22, 23 extend freely through the slide channel 7, wherein the web portions 34, 47 as shown in Figures 5 and 6, do not substantially overlap each other ,
  • the lower edge of the web portion 34 may be disposed approximately at the same height with the upper edge of the web portion 47.
  • the web region 47 does not bear against the bottom of the slide channel 7 over its entire length.
  • the steps 38, 49 of the guide portions 35, 48 are spaced apart in the longitudinal direction, so that they do not overlap.
  • the slide channel 7 extends far in the direction of the hook 5, and the slot beginning 11 is thus arranged in the immediate vicinity of the hook 5.
  • This front region 12 of the slide channel 7 gives the web sections 39, 53 guidance close to the hook 5.
  • the slider needle 1 described so far operates as follows:
  • the slider 3 In operation, the slider 3 is moved back and forth against the needle body 2. In a retracted position, the slide springs 22, 23 are almost completely retracted into the slide channel 7. The receiving region 82 of the slider body 21 releases a front part of the cutout 15, so that a large-area passage between the slide channel 7 at the channel side walls 8, 9 is released over to the flanks of the needle channel.
  • the hook 5 enters the gap between the stitch holding tabs and spreads the slide springs 22, 23 something on. It also filaments, dust or other deposits between the slide springs 22, 23 reach. If the slider 3 is then transferred back to its retracted position, stops the spreading of the slide springs 22, 23 and they are pulled together with the dirt got into the gap in the slide channel 7. However, entrained filaments or other debris can not then lead to a jamming of the slide springs 22, 23 in the slide channel 7, even if many successive strokes always get new deposits in the gap.
  • the web portions 34, 47 do not press against each other, but past each other. The needle is therefore largely insensitive to dirt accumulation. Entrained dirt is also removed by the relative movement between the web portions 34, 47 and the channel side walls 8, 9 in the cutout 15 and through this into the needle channel.
  • FIG. 7 shows a modified form of the slide 3. It has a slider body 21 'and two slide springs 22', 23 ', which are held on the slider body 21'.
  • the slider 3 ' may also be integrally formed.
  • the slider body 21 ' is essentially formed by an elongate, rectangular in cross-section web on which one or more feet 24' are formed. These protrude at right angles from the slider body 21 'away and serve to drive the same. In operation, they access the castle canal a lock and are moved by this relative to the needle body 2.
  • the slider body 21 In its front region, the slider body 21 'on a guide portion 25 on which on its side facing the needle body 2, a plane surface 26 is formed.
  • the thickness of the guide portion is the same as that of the portion of the slider body 21 'extending toward the feet 24' and is approximately equal to the thickness of the needle body 2.
  • the guide section 25 is adjoined by a holding section 27, which protrudes into the cutout 15 as a projection from the slider body 21 '.
  • the height of the holding section 27 coincides with the depth of the cutout 15. In the longitudinal direction, however, it is shorter than the cutout 15, so that a considerable longitudinal movement of the slider 3 'is allowed.
  • the slider 3 'at its holding portion 27 has a flat, wide, laterally open groove 28 for receiving retaining ends 29 of the slide springs 22', 23 ', which are caulked with a window opening 31 of the slider body 21'.
  • the slide springs 22 ', 23' extend past a window cutout 31 or an attachment point. They each engage with a mounting foot 32 in the window opening 31 and are adapted for caulking with this.
  • the extreme opposite end is formed by mesh holding lugs 33.
  • the slider spring 22 ' is essentially formed by an elongate, rectangular in cross section body. Starting from its holding region 29, a web region 34 'extends to a guide section 35'. Subsequent to the mounting foot 32, the slider spring 22 'merges into a web portion 34' which is less high than the side walls 8, 9 of the needle body and which is arranged so that it maintains a clear distance to the bottom of the slide channel 7, when the slider 3 'in or on the needle body 2 on or is attached. In other words, the slide spring 22 'has a recess or recess 34a' in the web region 34 '.
  • a guide section 35' is formed, which has approximately the full height of the slide channel 7, protruding beyond it in special applications. At its upper end it is provided with a contact surface 36 for the plane surface 26 of the guide portion 25 of the slider body 21 '. On its opposite side of the guide portion 35 'is provided with a lower abutment surface 37', which rests in use on the flat bottom of the slide channel 7 and thus marked in Figure 8 and its height.
  • the guide section 35 ' is bounded on its side facing the hook 5 or stitch-holding nose 33 by a step 38', which is aligned at right angles to the contact surface 37 ', and again turns into a narrow web section 39'.
  • This web portion 39 ' carries a plate-shaped, larger portion 41', which at its the stitch holding tab 33 side facing a mesh support shoulder 42 'determines.
  • the slide spring 23 'illustrated in FIG. 9 is asymmetrically constructed in regions in relation to the slide spring 22'. Both slide springs 22 ', 23' are not mirror-symmetrical with respect to an imaginary plane between them. When the slider spring 23 'extends from the holding end 29, starting from a web portion 47' to a guide portion 48 ', in which it merges with a steep step 49'.
  • the slider spring 23 ' is provided from above with a recess 47a', which preferably has a lateral overlap with the web portion 34 'of the slider spring 22'. Both recesses 34a ', 47a' may have a size such that they partially overlap at their broad sides.
  • the guide portion 48 ' has on its upper side a contact surface 51 which rests in use on the flat surface 26 of the slider body 21'.
  • a contact surface 52 ' is formed on the slider spring 23', which extends over a large part of the web portion 47 '. This lower contact surface 52 'abuts against the bottom of the slide channel 7.
  • the web region 47 ' can be advantageous if the web region 47 'does not bear against the bottom of the slide channel 7 over its entire length.
  • the web region 47 ' has a step 58 illustrated in FIG.
  • the guide portion 48 'of the slider spring 23' is offset against the guide portion 35 'of the slider spring 22' in the longitudinal direction such that the steps 38 ', 49' are approximately at the same level or in a slight Longitudinal distance from each other are arranged.
  • the slide springs 22 ', 23' are formed so that the two stages 38 ', 49' overlap or are aligned with each other.
  • the web portions 34 ', 47' are arranged.
  • the slider spring 23 ' has, subsequent to the guide section 48', a web section 53 ', which merges into a plate-like section 54'. This is mirror-symmetrical to the portion 41 'of the slider spring 22' is formed and defines a mesh support shoulder 55 'firmly.
  • a modified not under protection Asked embodiment of the needle 1 is obtained with the slide springs 22 ", 23" of Figure 10 and 11.
  • the slide springs 22 ", 23" are mirror-symmetrical to each other, wherein in their web areas or sections 34 '', 39 '' and 47 '', 53 '' slot-shaped recesses 61, 62 are formed, both as collecting spaces for fibers and Other deposits can serve, as are also at least occasionally transferred into the region of the cutout 15 of the needle body 2, so that existing deposits can be removed here in the needle channel.
  • a slider needle 1 has a slider 3, which has two slide springs 22, 23. These are asymmetrical to each other or at least provided with openings or recesses 34a, 47a, which are brought in operation of the needle 1 with a corresponding recess 15 or other openings in the base body 2 of the needle 1 in line, so that deposits are discharged into the needle channel can.
  • An asymmetrical design of the slide springs 22, 23 prevents jamming of the slider 3 in the slide channel 7, even if deposits are removed only incomplete, which significantly reduces the wear of the needle 1 and increases the reliability.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP00122042A 1999-10-18 2000-10-11 Schiebernadel mit asymmetrisch geteiltem schieber Expired - Lifetime EP1094139B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19950259 1999-10-18
DE19950259A DE19950259C1 (de) 1999-10-18 1999-10-18 Schiebernadel mit asymmetrisch geteiltem Schieber

Publications (2)

Publication Number Publication Date
EP1094139A1 EP1094139A1 (de) 2001-04-25
EP1094139B1 true EP1094139B1 (de) 2006-03-01

Family

ID=7926117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00122042A Expired - Lifetime EP1094139B1 (de) 1999-10-18 2000-10-11 Schiebernadel mit asymmetrisch geteiltem schieber

Country Status (5)

Country Link
US (1) US6339942B1 (es)
EP (1) EP1094139B1 (es)
JP (1) JP4056690B2 (es)
DE (2) DE19950259C1 (es)
ES (1) ES2255930T3 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW528822B (en) * 1999-10-27 2003-04-21 Shima Seiki Mfg Compound needle
AU2001294261A1 (en) 2000-10-20 2002-05-06 Shima Seiki Mfg., Ltd. Composite needle
DE10130365C1 (de) * 2001-06-23 2003-01-23 Groz Beckert Kg Schiebernadel mit verbessertem Schieber
JP3983737B2 (ja) * 2001-08-24 2007-09-26 株式会社島精機製作所 編機の複合針
ITMI20012095A1 (it) * 2001-10-10 2003-04-10 Protti Fashiontronix S P A In Ago composito particolarmente per macchine rettilinee per maglieria
CN100436688C (zh) * 2002-12-20 2008-11-26 株式会社岛精机制作所 复合针
DE102006020670B4 (de) * 2006-05-04 2020-12-24 Bayerische Motoren Werke Aktiengesellschaft Motorrad mit einem ausklappbaren Verkleidungselement
EP2196569B1 (en) * 2007-09-05 2015-06-10 Shima Seiki Mfg., Ltd Weft knitting machine
EP2305868B1 (de) * 2009-09-30 2012-11-21 Groz-Beckert KG Schiebernadel mit eingebautem Mittelsteg
EP2551393B1 (en) * 2010-03-26 2015-09-23 Shima Seiki Mfg., Ltd Complex needle, weft knitting machine
DE102013105239A1 (de) * 2013-05-22 2014-11-27 Groz-Beckert Kg Schiebernadel
EP3597807B1 (de) * 2018-07-18 2021-02-24 Groz-Beckert KG Maschinenstrickwerkzeug, insbesondere maschinenstricknadel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1347154A (en) * 1970-10-13 1974-02-27 Lindner H Slider needle
DE3123785A1 (de) * 1980-10-08 1982-05-27 Veb Kombinat Textima, Ddr 9010 Karl-Marx-Stadt Maschengesteuerte schiebernadel fuer wirk- und strickmaschinen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1461007A (en) * 1920-01-29 1923-07-03 Spartan Needle Company Knitting needle
US1673634A (en) * 1927-05-25 1928-06-12 Scott & Williams Inc Knitting-machine needle
US3584481A (en) * 1969-03-06 1971-06-15 Teihichi Kayashi Knitting needle for transferring stitches
CS164150B1 (es) 1973-11-28 1975-11-07
DD114840A1 (es) * 1974-09-04 1975-08-20
DE4430705A1 (de) * 1994-08-30 1996-03-07 Scheller Gmbh Strickmaschine
US5937673A (en) * 1997-05-01 1999-08-17 Shima Seiki Manufacturing, Ltd. Compound needle of a flat knitting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1347154A (en) * 1970-10-13 1974-02-27 Lindner H Slider needle
DE3123785A1 (de) * 1980-10-08 1982-05-27 Veb Kombinat Textima, Ddr 9010 Karl-Marx-Stadt Maschengesteuerte schiebernadel fuer wirk- und strickmaschinen

Also Published As

Publication number Publication date
ES2255930T3 (es) 2006-07-16
DE19950259C1 (de) 2001-01-25
JP4056690B2 (ja) 2008-03-05
DE50012284D1 (de) 2006-04-27
US6339942B1 (en) 2002-01-22
EP1094139A1 (de) 2001-04-25
JP2001140148A (ja) 2001-05-22

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