EP0073380A1 - Outil de tricotage estampé pour des métiers à tricoter - Google Patents

Outil de tricotage estampé pour des métiers à tricoter Download PDF

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Publication number
EP0073380A1
EP0073380A1 EP82107350A EP82107350A EP0073380A1 EP 0073380 A1 EP0073380 A1 EP 0073380A1 EP 82107350 A EP82107350 A EP 82107350A EP 82107350 A EP82107350 A EP 82107350A EP 0073380 A1 EP0073380 A1 EP 0073380A1
Authority
EP
European Patent Office
Prior art keywords
hook
cross
knitting
knitting tool
neck
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
EP82107350A
Other languages
German (de)
English (en)
Other versions
EP0073380B1 (fr
Inventor
Bernhard Dipl.-Ing. Schuler
Ferdinand Dipl.-Ing. Schuller
Werner Ing. Wohlgemuth (Grad.)
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
Theodor Groz and Soehne and Ernst Beckert Nadelfabrik 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 Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG filed Critical Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG
Publication of EP0073380A1 publication Critical patent/EP0073380A1/fr
Application granted granted Critical
Publication of EP0073380B1 publication Critical patent/EP0073380B1/fr
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G1/00—Making needles used for performing operations
    • B21G1/02—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls
    • B21G1/04—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls of needles specially adapted for use in machines or tools

Definitions

  • the invention relates to a punched knitting tool for knitting or knitting machines, with a hook integrally formed on a shaft over a neck, which consists of a cross-sectionally substantially rectangular profile material up to the end of the hook or to the beginning of a hook tip formed there.
  • the knitting tools of the type in question include latch needles, pusher needles, pointed needles, but also so-called plush hooks, such as are used for the manufacture of plush goods, and the like.
  • the hook In the majority of such knitting tools, the hook has a circular cross-sectional shape.
  • the increasing increase in the operating speed of the knitting or knitting machines equipped with such knitting tools leads to ever greater stresses on the knitting tools in the area of the hook.
  • attempts have already been made to form it with a rectangular, triangular or other cross-sectional shape as is known, for example, from US Pat. Nos. 2,854,836, 4,178,781 and 4,210,003. Due to these changes in cross-section, the section modulus of the highly stressed hook could be reduced be increased, but such hooks have not become established in practice because the large cross-section that remains the same over the entire hook inevitably resulted in undesirably large dimensions of the entire hook.
  • needles with such relatively large hooks cannot be used, because the stitch size is also determined by the hook size and the hook should have a maximum free thread space during the stitch formation.
  • the object of the invention is to remedy this and to create a punched knitting tool for knitting or knitting machines, the hook of which can absorb the large stresses occurring during the knitting process without the risk of premature hook breakage or hook bending or other damage and at the same time is distinguished by an appropriately small size .
  • the knitting tool mentioned at the outset is characterized according to the invention in that the hook, starting from a maximum value of the cross-sectional dimensions in the region of the neck towards the end of the hook or at the beginning of the hook tip, is designed with continuously tapering cross-sectional dimensions.
  • the rectangular cross-sectional shape of the hook results in a large section modulus during the knitting process. Because the cross-sectional dimensions taper continuously towards the end of the hook it is achieved that the hook can still be formed with relatively small dimensions without affecting its strength.
  • the knitting tool can be designed such that each rectangular cross-sectional area in the region of the taper points with its longer sides either in the direction of the width dimension or the height dimension.
  • At least the hook can also be essentially square in cross section.
  • the neck can also be essentially rectangular or square in cross section.
  • all cross-sectional areas of at least the hook in the region of the taper are similar to one another, which means that the taper takes place in the direction of both the width dimension and the height dimension by the same values in each case.
  • the taper can also extend over the neck, which also has a rectangular or square cross-sectional shape.
  • the area of the tapering is from one in the area of the The highest point of the needle face (maximum needle face height) is the maximum value of the cross-sectional dimensions starting from the end of the hook or the beginning of the tip of the hook.
  • the punched latch needle shown in FIGS. 1 to 6 has a needle shaft 1 which merges into the needle breast 2 with the maximum needle breast height indicated at 3a. This is followed by the molded-on needle neck 4, which is finally followed by the curved needle head or hook 5.
  • a tongue slot 6 is worked out, in which a needle tongue 7 about a tongue axis 8 is pivotally mounted, as can be seen from Fig. 1, in which the tongue 7 is shown in the closed and - dashed - in the open state.
  • the profile material forming the hook 5 and the neck 4 has an essentially square cross-sectional shape.
  • the arrangement is such that, starting from a maximum value of the cross-sectional dimensions (FIG. 3) given by the maximum needle breast height 3a, the neck 4 and the hook 5 up to the beginning of a hook tip, indicated at 9, of round cross-section with a continuously tapering cross-sectional dimension are trained.
  • the cross-sections illustrated in FIGS. 3 to 6 show that all cross-sectional areas of the hook 5 and the neck 4 are similar to one another in the tapering region.
  • the edge length of the square rectangular area according to FIG. 4 (corresponding to the cutting plane IV-IV of FIG. 2) is 0.36 mm
  • the cross-sectional area according to FIG. 6 (corresponding to the section line VI-VI of FIG. 2) is 0.28 mm.
  • the side-bounding edges of the hook 5 and the neck 4 can be chamfered or rounded, as is indicated in FIG. 3 to 8 by dashed lines at 10.
  • the tapered area can only extend over the length of the actual hook 5 - ie starting at about 3, ie the section plane IV-IV of FIG. 2 - to the beginning of the hook tip 9, while the neck 4 has a constant thickness which already corresponds, for example, to the thickness of the needle shaft 1.
  • the taper in the direction of the width dimension 11 and the height dimension 12 at right angles thereto takes place to the same extent, so that the cross-sectional areas are respectively similar squares above the hooks, while in the area of the neck 4 , starting from the maximum needle breast height 3a, the taper in the direction of the width dimension 11 is smaller than that in the height dimension direction 12 at right angles thereto.
  • the hook 5 - possibly together with the neck 4 - has a rectangular cross-sectional shape, with its longer sides in the direction of Hook width dimension 11 or the hook height dimension 12 running at right angles to it (see FIGS. 8, 7).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP82107350A 1981-08-22 1982-08-13 Outil de tricotage estampé pour des métiers à tricoter Expired EP0073380B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3133266A DE3133266C2 (de) 1981-08-22 1981-08-22 Gestanztes Strickwerkzeug für Strick- oder Wirkmaschinen
DE3133266 1981-08-22

Publications (2)

Publication Number Publication Date
EP0073380A1 true EP0073380A1 (fr) 1983-03-09
EP0073380B1 EP0073380B1 (fr) 1986-11-20

Family

ID=6139888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107350A Expired EP0073380B1 (fr) 1981-08-22 1982-08-13 Outil de tricotage estampé pour des métiers à tricoter

Country Status (6)

Country Link
US (1) US4548056A (fr)
EP (1) EP0073380B1 (fr)
JP (1) JPH0762296B2 (fr)
CA (1) CA1184396A (fr)
DE (1) DE3133266C2 (fr)
WO (1) WO1983000706A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6458891B1 (en) 1998-09-14 2002-10-01 Asahi Kasei Kabushiki Kaisha Hydrogenated block copolymer

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781040A (en) * 1986-07-04 1988-11-01 Loyal Kogyo Kabushiki Kaisha Latch needle for knitting machine
DE4323717A1 (de) * 1992-07-14 1994-01-20 Franz Hoelzel Wärmedämmelement für Gebäudewände mit Vorhangfassade
US5452593A (en) * 1993-05-28 1995-09-26 Exeltor Inc. Loop tension release notch to assist latch closing
DE19720169C2 (de) * 1997-05-14 1999-04-08 Groz Beckert Kg Auswahlplatine
JP2002285453A (ja) * 2001-03-28 2002-10-03 Gunze Ltd ストッキング類の編み機
EP1921189B1 (fr) * 2006-11-09 2011-05-11 Groz-Beckert KG Aiguille pour machine à tricoter
EP2224048B1 (fr) * 2009-02-26 2011-08-31 Groz-Beckert KG Aiguille à clapet dotée d'une goupille axiale rotative
EP3643823B1 (fr) * 2018-10-25 2021-06-30 KARL MAYER STOLL R&D GmbH Aiguille coulissante d'un métier à mailles jetées

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896696C (de) * 1943-04-14 1953-11-16 Jur Johannes Seidel Dr Hakennadel fuer Wirkmaschinen
US2685787A (en) * 1952-01-10 1954-08-10 Kidde Mfg Co Inc Knitting machine needle
FR1134484A (fr) * 1955-07-22 1957-04-11 Perfectionnements aux aiguilles de machines à tricoter
DE1585399A1 (de) * 1962-04-30 1970-08-06 North American Rockwell Zungennadel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854836A (en) * 1955-02-14 1958-10-07 Joseph L Morris Knitting machine needle hook
US4178781A (en) * 1978-03-06 1979-12-18 The Torrington Company Knitting needle
US4210003A (en) * 1978-06-07 1980-07-01 The Torrington Company Knitting needle with reinforced hook

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896696C (de) * 1943-04-14 1953-11-16 Jur Johannes Seidel Dr Hakennadel fuer Wirkmaschinen
US2685787A (en) * 1952-01-10 1954-08-10 Kidde Mfg Co Inc Knitting machine needle
FR1134484A (fr) * 1955-07-22 1957-04-11 Perfectionnements aux aiguilles de machines à tricoter
DE1585399A1 (de) * 1962-04-30 1970-08-06 North American Rockwell Zungennadel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6458891B1 (en) 1998-09-14 2002-10-01 Asahi Kasei Kabushiki Kaisha Hydrogenated block copolymer

Also Published As

Publication number Publication date
CA1184396A (fr) 1985-03-26
WO1983000706A1 (fr) 1983-03-03
JPH0762296B2 (ja) 1995-07-05
EP0073380B1 (fr) 1986-11-20
JPS58501330A (ja) 1983-08-11
US4548056A (en) 1985-10-22
DE3133266A1 (de) 1983-03-10
DE3133266C2 (de) 1988-12-22

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