EP0789100B1 - Gestanztes Strickwerkzeug - Google Patents

Gestanztes Strickwerkzeug Download PDF

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Publication number
EP0789100B1
EP0789100B1 EP97101100A EP97101100A EP0789100B1 EP 0789100 B1 EP0789100 B1 EP 0789100B1 EP 97101100 A EP97101100 A EP 97101100A EP 97101100 A EP97101100 A EP 97101100A EP 0789100 B1 EP0789100 B1 EP 0789100B1
Authority
EP
European Patent Office
Prior art keywords
blade
needle
shaft
region
knitting tool
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
EP97101100A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0789100A2 (de
EP0789100A3 (de
Inventor
Uwe Henning
Bernhard Schuler
Klaus Wagner
Hans Lebherz
Siegfried Wissmann
Thomas Dr. Bregel
Albert Teufel
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 EP0789100A2 publication Critical patent/EP0789100A2/de
Publication of EP0789100A3 publication Critical patent/EP0789100A3/de
Application granted granted Critical
Publication of EP0789100B1 publication Critical patent/EP0789100B1/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
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00

Definitions

  • the invention relates to a punched knitting tool, for example a hook or latch needle, but are among the knitting tools in question, also needles, Needles without tongue, for example plush hooks for the production of plush goods, sinkers, needles without feet and understand the like.
  • These knitting tools each have a shaft with which they are in an assigned guide groove Needle carrier, for example a needle bed, one Dial or a needle cylinder etc. back and forth are guided. Because the needle shaft in this back and forth movement depending on the operating conditions with a certain force against the ground and pressed against at least one side wall of the guide groove considerable friction occurs in operation the needle shaft and those engaged with it Wall areas of the guide groove that not only one Warming, but also an increase in resistance to movement leads.
  • the knitting tools must therefore be lubricated, which is usually low viscosity oil is used that is misty or teardrop-shaped on discrete Lubrication points are introduced into the guide groove. In particular with high-speed knitting machines they are Lubrication ratios that are often not achievable in this way sufficient so that u. a. an inadmissible warming of the Machine and the knitting tools and possibly even an undesirable impairment of the life of the To fear knitting tools and the needle beds etc. are.
  • JP-A-5-195394 proposes for a latch needle, the shaft of which is one out of two from the upper edge of the needle shaft to the lower edge of the needle shaft continuous, vertical guide pieces and one existing bridge connecting narrow bridge has a depression between this bridge and the foot to be provided in the needle shaft. This deepening is through the front edge of the foot, a narrow connecting bridge along the lower edge of the needle shaft and a subsequent one Guide piece of the bridge limited. Die.zur Needle shaft upper edge open recess is in operation kept filled with lubricating oil via an oil supply device, then when the needle shaft moves back and forth over the areas covered by the depression the guide groove wall should be applied distributed.
  • Needle shaft on at least one broadside with one over the shaft length is continuous, to the needle shaft upper and Provide the lower edge of the parallel longitudinal groove.
  • This longitudinal groove, of which, if necessary, one on each broadside may be present should also improve the lubricating oil distribution and retention in the guide groove contribute. The effect of such a longitudinal groove in This sense is limited, however, because the Oil distribution longitudinal groove did not achieve sufficient lubrication results.
  • the longitudinal groove in particular the meaning, the weight and thus the inert mass of the Needle shaft to reduce the occurrence counteracting broken hooks by the arise when the needle foot hits the lock parts Shock waves originate in the needle.
  • a similar one A target known from US-A-4,036,036 is also used Measure that consists in at least the needle shaft to provide a through opening arranged so is that it doesn't extend to the top or bottom of the needle shaft and their task in it is seen, shock loads occurring during operation in dampen their effects.
  • the task of a knitting tool create that through a comparable conventional knitting tools significantly reduced resistance to movement when moving in the associated Guide channel of a wearer and thus contributes to the operation of such knitting tools equipped knitting machine heating occurring as well as to reduce the required drive power, while at the same time the life of the knitting tool and the parts of the guide groove which engage with it or the guide channel is extended.
  • the stamped knitting tool is used to solve this task according to the invention the features of the patent claim 1 and / or claim 2.
  • the shaft is at least one of its two broad sides with lubricant distributors provided that at least one area decreased Have shaft thickness.
  • This area diminished Shaft thickness can be in the form of a transverse to the longitudinal direction of the shaft extending bevel and / or recess be formed by an area at a distance from the Outgoing upper edge of the shaft, up to or almost up to the lower edge of the shaft extends.
  • an area reduced shaft thickness in the shape of a transverse to the Longitudinal direction of the shaft, almost or up to of the lower shaft extending recess provided be an essentially wedge-shaped or trough-shaped Has a cross-sectional shape, i.e. essentially notches or is channel-shaped.
  • one essentially wedge-shaped or trough-shaped cross-sectional shape showing notches or trough-shaped depressions be provided which the lubricant drain from the Effectively reduce the area below the foot.
  • the shaft Adjacent to one of the wells mentioned the shaft has an area of increased shaft thickness, with a raised sealing lip on the corresponding one Side of the recess that creates the sealing effect on the lubricant collection pocket thus formed opposite the associated side wall of the guide channel improved.
  • Tongue needles were made in the making Steel punched out. They each have a needle shaft 1 rectangular cross-sectional shape, whose both broad sides indicated in Figures 3, 4 at 2 and 3 and its top and bottom edges with 4 and 5 respectively are designated. At the upper edge 4 of the shaft 1 is a Needle foot 6 provided. Before the needle foot 6 closes a needle hook 8 to the shaft 1 via a throat 7, the in a known manner with one indicated at 9, pivotable stored needle tongue cooperates.
  • the shaft 1 is at all illustrated embodiments at least in sections designed with a number of bridges, from which each consist of two vertical ones from the upper edge of the shaft 4 to the lower edge of the shaft 5 continuous, vertical guide pieces is formed by a narrow web 11th connected to each other, which is parallel to the upper shaft or lower edge runs. In the area of these bridges the shaft 1 thus has a meandering shape.
  • 6 is the needle foot 6 also by a similar, however built under wider guide piece 12 that up to the Height of the lower edge of the needle shaft 5, that means to the back of the needle enough.
  • the shaft 1 is formed as a full shaft in the area of the foot 6 the full shaft section 14 over a about the same length in front of and behind the needle foot 6 extends and has the full height of the needle shaft.
  • the shaft is 1 on at least one of its broad sides 2, 3 with lubricant distributors provided who have the task the movement of the latch needle in the no further shown guide channel of the needle bed occurring Friction between the channel walls and the needle shaft 1 to reduce and the lubrication ratios for the To improve latch needle in the needle channel.
  • lubricant distributors each have at least one area reduced Shaft thickness on one of the two broad sides 2, 3, that promotes lubricant storage and distribution and at the same time the effective contact surface with the assigned guide channel side surface and thus the im Operation occurring movement resistance for the latch needle decreases.
  • 6 is such an area of reduced shaft thickness each below the same thickness arranged as the shaft 1 having needle foot 6.
  • This is the case with the first embodiment according to the figures 1, 2 of the shaft 1 in the area of the base of the needle foot 6 Guide piece 12, on the viewer in Figure 1 facing broadside 2, with a recess 15 in the form of a along the length of the guide piece 12 continuous flattening provided by a Lower edge 16 of the adjoining the needle foot 6 on both sides Web 11 extending line 17 to the lower edge of the needle shaft 5 extends continuously.
  • About the Surface of the recess 15 has a needle shaft constant reduced thickness, which is approximately between 10% - 50% of the normal needle shaft thickness.
  • the area of reduced shaft thickness at 15 might as well be formed by a bevel, which, starting from Line 17 in FIG. 1, towards the lower edge of the needle shaft 5 extends such that the needle shaft in the designated 15 Area a substantially wedge-shaped cross-sectional shape has, as this for the still to be explained Embodiment according to Figures 5, 6 in Figure 7 in Principle is shown.
  • 6 is the area arranged below the needle foot 6 is reduced Shaft thickness in the form of a bevel or recess 15a formed, which extends to the lower edge of the needle shaft 5 extends and approximately parabolic, with the needle foot 6 pointing vertex is designed, as shown in figure 5 can be seen.
  • the cross-sectional image according to FIG. 7 shows that in the parabolic bounded area 15a the shaft thickness from the value of the normal, the thickness of the needle foot 6 corresponding shaft thickness nearby the vertex of the parabola to a minimum value at the Lower shaft edge 5 reduced, which is about 25% of the 18 indicated normal shaft thickness.
  • bevel at 15a could also be graded Recess must be replaced, so that there is in principle a cross-sectional image corresponds to Figure 8, the range 15a reduced shaft thickness a constant thickness having.
  • Area 15a could of course also be an arcuate, triangular or other functional shape the boundary line can be used.
  • FIG. 9 Another alternative to the formation of the recess is illustrated in Figure 9.
  • the recess 15b whose cross-sectional shape correspond to Figure 7 or Figure 8 can, is on the side facing the needle hook 8 19th open while lying on the needle foot 6 behind Page 20 is limited by a curved wall surface, which continues on top in section 21, which is parallel to the lower edge of the adjoining web 11 runs and corresponds to line 17 of Figure 1.
  • a latch needle are also in the area the so-called tracking behind the needle foot 6 vertical guide pieces 10 on both broad sides 2, 3 each provided with a chamfer 22 or 23, such as this can be seen in particular from FIG. 3.
  • the one Beveling in the area of broadside 3 goes from Needle shaft lower edge 5 and extends approximately over a length of approximately 2/3 of the height of the guide piece 10. Your is on the opposite broadside 2 one assigned second chamfer 23, the top of the needle shaft 4 starting about the same length as the first Bevel 22 has, so that the two bevels 22, 23 overlap each other.
  • each of the bevels 22, 23 also over a Approach at 22a or 23a in the adjacent needle shaft side surface pass.
  • the terminal guide piece 10a can in the described beveled, so that cross-sectional images result in accordance with Figure 3 or Figure 4; but it can also correspond to the area 15 or 15a reduced wall thickness.
  • the latch needle are the guide pieces 10 two behind the needle foot 6, that is in the area of Tracking bridges on the in Figure 5
  • the broadside 2 facing the observer with the upper edge of the shaft 4 transverse to the lower edge of the shaft 5 notch-like to the longitudinal direction of the shaft Provide recesses 24 which are substantially wedge-shaped Have cross-sectional shape, which in particular can be seen from Figures 10 and 14.
  • the notch-like depressions 24 which extend in the longitudinal direction of the needle each about half the width of the associated Extend guide piece 10 (see Figure 10) are on the side away from the needle foot 6 each bounded by a side wall 25, which with the Level of the side surface 2 an angle of 90 ° or how from Figure 14, with the surface normal one Angle 26 of 10 ° - 20 ° includes such that the side surface 25 forms a groove. It connects to them towards the needle foot 6 to an inclined floor surface 27 with the shaft side surface forming the broad side 2 an acute angle 28 of 5 to 20 °, preferably of 10 ° or gently in this area expires.
  • the shaft 1 adjoins the recess 24 an area 29 which is approximately wedge-shaped in cross section (FIG 14) increased shaft thickness, which the side surface 25 after lengthened on the outside and one over the shaft height
  • FOG 14 wedge-shaped in cross section
  • the following, at a greater distance from the Needle foot 6 behind this two guide pieces 10 are also formed with areas of reduced shaft thickness, but here each as one transverse to the longitudinal direction of the shaft extending from the upper edge of the shaft 4 trough-shaped to the lower edge 5 of the shaft Indentation with an approximately arcuate cross section Profile is designed so that it is approximately tub-shaped Has shape.
  • the one indicated at 31 in FIG. 11 Profile line can also end smoothly at 32 pass over the area of broadside 2.
  • the gutter-shaped Recess 30 extends, as can be seen from FIG. 1, beyond the respective guide piece 10 in the Area of the adjacent web 11 or 11a.
  • depressions 24, 30, Bevels 15, 15a or recesses 31 etc. also for example with so-called full shaft needles, sinkers, or footless needles like those for left / left knitting machines or used for knitting machines where Linear motors are used for needle drive could be.
  • full shaft needles, sinkers, or footless needles like those for left / left knitting machines or used for knitting machines where Linear motors are used for needle drive could be.
  • knitting tools Shaft has recesses that are filled with plastic are.
  • FIG. 12 An example illustrates that in the Figures 12, 13 illustrated latch needle in the area of the needle foot 6 the already mentioned full shaft section 14, in which on the viewer facing broadside 2 at intervals parallel to each other notch-like recesses 24 are incorporated are, two of which are in front of the needle foot 6 and five behind the needle foot 6 are arranged.
  • the notch-like depressions 24 can otherwise with stylus-like tools, similar to file manufacturing are generated while the cutouts or Bevels 15a e.g. are milled or pressed and the other trough-shaped or channel-shaped depressions 30 etc. can be produced by milling or embossing processes.
  • the cutouts or Bevels 15a e.g. are milled or pressed and the other trough-shaped or channel-shaped depressions 30 etc. can be produced by milling or embossing processes.
  • a milling or bevel 15a may be present.
  • ranges apply to all embodiments reduced shaft thickness of the type described if necessary also on both broad sides 2, 3 of the needle shaft 1 can be present.
  • the areas of reduced shaft thickness act the needle shaft in the manner of oil collecting or collecting bags, from which the introduced into the guide channel Lubricating oil along the path of movement of the needle over the Bottom wall and the side wall of the needle guide channel is distributed to those of the needle shaft in the operation of the Knitting machine is pressed.
  • the bevels 22, 23 and / or 15 / 15a like the cutouts 15, 31, Free spaces are created that the lubricating oil and sliding resistance lower in operation.
  • the recesses also arranged below the needle foot or bevels 15, 15a as an oil collector those at these highly stressed places, as well as at the heavily used front and rear edge of the needle foot Lubricating oil is introduced effectively.
  • the notch-shaped Recesses 24 contribute to the even distribution of lubricating oil at and especially prevent vertical Installation position an undesired outflow of the lubricating oil downward. This sealing effect is achieved through the sealing lips still supported at 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP97101100A 1996-02-10 1997-01-24 Gestanztes Strickwerkzeug Expired - Lifetime EP0789100B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19604954 1996-02-10
DE19604954A DE19604954C1 (de) 1996-02-10 1996-02-10 Gestanztes Strickwerkzeug

Publications (3)

Publication Number Publication Date
EP0789100A2 EP0789100A2 (de) 1997-08-13
EP0789100A3 EP0789100A3 (de) 1998-11-18
EP0789100B1 true EP0789100B1 (de) 2003-04-09

Family

ID=7785091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101100A Expired - Lifetime EP0789100B1 (de) 1996-02-10 1997-01-24 Gestanztes Strickwerkzeug

Country Status (4)

Country Link
US (1) US5901582A (ja)
EP (1) EP0789100B1 (ja)
JP (1) JP3231648B2 (ja)
DE (2) DE19604954C1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740985C2 (de) * 1997-09-18 1999-09-30 Groz Beckert Kg Gestanztes Strickwerkzeug
JP2000073263A (ja) * 1998-08-24 2000-03-07 Fukuhara Needle Kk 編機械用打ち抜き部品
DE10300830B3 (de) 2003-01-10 2004-08-05 Groz-Beckert Kg Strickwerkzeug und Herstellungsverfahren für dieses
DE10333172B4 (de) * 2003-07-22 2006-01-19 Groz-Beckert Kg Strickmaschinennadel
CN101072909B (zh) * 2004-12-07 2011-11-09 福原机针株式会社 针织圆机用部件
EP2172584B1 (de) * 2008-10-02 2013-01-09 Groz-Beckert KG Strickmaschinennadel mit geschlitztem Mäanderbogen
EP2540889B1 (de) * 2010-07-06 2016-08-17 Groz-Beckert KG Stricksystem mit abgeflachten Führungskanälen
DE102011119335B3 (de) * 2011-11-25 2013-04-04 Thomas Liebers Anordnung eines Strickelements in einem Führungskanal einer Strickmaschine sowie Strickelement
PT2927360T (pt) * 2014-04-03 2017-04-20 Groz Beckert Kg Ferramenta de tricotar para máquinas de tricotar

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US410858A (en) * 1889-09-10 Half to louis n
US664808A (en) * 1899-12-13 1900-12-25 Dodge Needle Company Knitting-machine needle.
US2677257A (en) * 1950-02-27 1954-05-04 H D Hines Dial transfer knitting needle
GB1094156A (en) * 1963-09-25 1967-12-06 Matthews & Birkhamshaw Ltd An improved knitwear linking machine needle
US3949572A (en) * 1969-12-29 1976-04-13 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi High impact knitting needle
US4036036A (en) * 1976-03-22 1977-07-19 The Torrington Company Latch needle for knitting machines
DE2911195C2 (de) * 1979-03-22 1981-03-19 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Verfahren zur Bearbeitung der Nadelfüße gestanzter Strickmaschinennadeln
JPS61239065A (ja) * 1985-04-12 1986-10-24 福原ニ−ドル株式会社 丸編機用のメリヤス板針およびその製造方法
JPS63177977U (ja) * 1987-05-06 1988-11-17
JP2989708B2 (ja) * 1992-01-16 1999-12-13 株式会社福原精機製作所 編機用編針

Also Published As

Publication number Publication date
DE59709734D1 (de) 2003-05-15
JPH09310255A (ja) 1997-12-02
US5901582A (en) 1999-05-11
DE19604954C1 (de) 1997-02-27
EP0789100A2 (de) 1997-08-13
EP0789100A3 (de) 1998-11-18
JP3231648B2 (ja) 2001-11-26

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