EP0232466B1 - Latch needle for textile machines - Google Patents
Latch needle for textile machines Download PDFInfo
- Publication number
- EP0232466B1 EP0232466B1 EP86114374A EP86114374A EP0232466B1 EP 0232466 B1 EP0232466 B1 EP 0232466B1 EP 86114374 A EP86114374 A EP 86114374A EP 86114374 A EP86114374 A EP 86114374A EP 0232466 B1 EP0232466 B1 EP 0232466B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needle shaft
- needle
- latch
- pivot pin
- cheeks
- 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
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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
Definitions
- the invention relates to a latch needle for textile machines with a tongue which can be pivoted in a longitudinal slot of the needle shaft and which is pivotably mounted by means of a continuous bearing bore on a one-piece cylindrical axle bolt which is inserted into corresponding coaxial bores of the needle shaft cheeks which laterally delimit the longitudinal slot and is captively fixed therein, wherein the length of the axle pin is smaller than the needle shaft thickness at the tongue bearing point and fixing elements for the axle pin are formed from the material of the needle shaft cheeks. the axle bolts are formed.
- Tongue needles of this type are used in various textile machines, in particular in knitting and knitting machines, but also, for example, in special sewing machines.
- High requirements are generally placed on the storage of the tongue with regard to mechanical resilience and accuracy of the tongue guidance, in particular when the latch needles work in high-speed knitting machines or when knitting robust yarns.
- the axle pin is namely rigidly connected at the end to the needle shaft cheeks, for example screwed or welded (DE-C1-12 96 734, CH-A-476 141) or by means of fixing elements formed from the material of the needle shaft cheeks by an embossing process which engage in recesses in the axle pin (US-A-27 67 566, DE-C1-11 59 585), which results in a rigid and transverse to the axis of symmetry completely inelastic tongue bearing arrangement, which was recognized as the cause of premature jaw fractures.
- tongue needles are used almost consistently in practice, in which the needle tongue with its bearing bore is pivotally mounted on two bearing pins pressed out of the material of the needle shaft cheeks (US-A-39 34 109, GB-C-836 297). Because of the unpredictable flow behavior of the material of the needle shaft cheeks pressed into the bearing bore of the tongue, the bearing pins produced by an embossing process and connected to the needle shaft cheeks are more or less irregular on their outer surface, with the result that the area bearing portion of the needle tongue on the bearing pins is also one brand new needle is relatively small.
- the state of the art in the Federal Republic of Germany also includes the proposal (DE-A-35 46 037) to provide a bore in only one of the two needle shaft cheeks delimiting the longitudinal slot and to press in an axle pin of approximately 2/3 of the needle shaft thickness in this, the of the opposite cheek, with which it may be welded.
- the axle pin can be fixed by an impression of an embossing tool that surrounds the bore of the shaft cheek in a ring.
- a one-sided needle shaft cheek drilling is not economically feasible, especially with thin needles in mass production; one-sided stress on a latch needle in the area of its latch support is also undesirable.
- the object of the invention is therefore to remedy this situation and to create a latch needle which, on the one hand, has the advantages with regard to accuracy and wear resistance of the latch bearing of a latch needle provided with a continuous axle bolt and, on the other hand, maintains its full suitability for use over long operating periods without the risk of the occurrence of broken jaws .
- the latch needle mentioned at the outset is characterized according to the invention in that the fixing elements act only as axial stops for the axle bolt in one direction in the vicinity of the outward-facing free end faces of the axle bolt lying in the depth of the holes in the needle shaft cheeks in the bores the needle shaft cheeks are arranged protruding.
- the tongue with its bearing bore is perfectly supported with the largest possible surface area and therefore a correspondingly small specific pivot bearing surface load.
- the fixing elements deformed into the bore of the needle shaft cheeks ensure that the axle bolt does not slide outward over time and can endanger the tongue in its storage. Since the needle shaft cheeks are not rigidly connected to the axle bolt, they can deflect laterally transversely to the plane of needle symmetry to the extent required, so that a corresponding elasticity that is effective transversely to the axis of needle symmetry is ensured and jaw fractures are thus reliably prevented.
- annular material bead is formed from the material of the needle shaft cheeks as the fixing element.
- the fixing elements are axially spaced from the adjacent end faces of the axle bolt, so that an inward elastic movement of the needle shaft cheeks is possible without hindrance if necessary.
- axle bolt with its outside facing end faces is essentially in the half of the bore adjacent to the longitudinal slot in the needle shaft cheeks.
- the latch needle has a needle shaft 1, on which a hook 2 is integrally formed at one end and can carry feet, not shown, which interact in a known manner with lock parts of knitting machines etc.
- a tongue 5 is pivotally mounted, which at one end carries a tongue spoon 7 covering the hook tip 6 in the closed position shown and whose shaft 8 fitted into the longitudinal slot 3 with parallel flanks has a bearing bore 9.
- a transverse bore 12 is formed which is coaxial with the pivot axis of the tongue 5 indicated at 11 and into which a smooth-walled cylindrical axle bolt 13 is inserted in the sliding seat, crossing the longitudinal slot 3.
- the tongue with its bearing bore 9 is supported with a small radial bearing clearance, which corresponds, for example, to a diameter difference of + 0.001 mm and less.
- the axle bolt 13 lies with its outwardly facing parallel end faces 14 in the half of the respective bore 12 adjacent to the longitudinal slot 3, whereby in the illustrated embodiment it projects approximately to the center of the bore depth. It is axially fixed in the bores 12 by fixing elements projecting into these bores, which are in the vicinity of the free end faces 14 of the axle bolt 13 and are formed from the material of the needle shaft cheeks 10. In the exemplary embodiment shown, these fixing elements are each in the form of an annular material bead 15, which lies at a small axial distance 16 from the adjacent end faces 14 of the axle bolt 13.
- the needle shaft cheeks 10 can deflect elastically laterally if they are subjected to a corresponding alternating load during operation. This eliminates the risk of broken jaws.
- finger-like or tooth-like fixing elements could also be provided, which are formed in the material of the needle shaft side cheeks 10 by an embossing process and project into the bores 12 in a corresponding manner.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Sewing Machines And Sewing (AREA)
- Rolling Contact Bearings (AREA)
Description
Die Erfindung betrifft eine Zungennadel für Textilmaschinen mit einer in einem Längsschlitz des Nadelschaftes verschwenkbaren Zunge, die mittels einer durchgehenden Lagerbohrung auf einem einstückigen zylindrischen Achsbolzen schwenkbar gelagert ist, der in entsprechende koaxiale Bohrungen der den Längsschlitz seitlich begrenzenden Nadelschaftwangen eingefügt und in diesen unverlierbar fixiert ist, wobei die Länge des Achsbolzens kleiner als die Nadelschaftdicke an der Zungenlagerstelle ist und aus dem Material der Nadelschaftwangen Fixierelemente für den Achsbolzen ausgeformt sind. den Achbolzen ausgeformt sind.The invention relates to a latch needle for textile machines with a tongue which can be pivoted in a longitudinal slot of the needle shaft and which is pivotably mounted by means of a continuous bearing bore on a one-piece cylindrical axle bolt which is inserted into corresponding coaxial bores of the needle shaft cheeks which laterally delimit the longitudinal slot and is captively fixed therein, wherein the length of the axle pin is smaller than the needle shaft thickness at the tongue bearing point and fixing elements for the axle pin are formed from the material of the needle shaft cheeks. the axle bolts are formed.
Zungennadeln dieser Art werden in verschiedenen Textilmaschinen, insbesondere in Strick- und Wirkmaschinen, aber auch bspw. in Spezial-Nähmaschinen, verwendet.Tongue needles of this type are used in various textile machines, in particular in knitting and knitting machines, but also, for example, in special sewing machines.
An die Lagerung der Zunge werden im allgemeinen hohe Anforderungen in Bezug auf mechanische Belastbarkeit und Genauigkeit der Zungenführung gestellt, insbesondere dann, wenn die Zungennadeln in schnelllaufenden Strickmaschinen arbeiten oder robuste Garne zu verstricken haben. Die während des Strickvorganges durch die Zunge-ausgelösten Keilwirkungen auf die den Längsschlitz begrenzenden Nadelschaftwangen versuchen diese auseinanderzuspreizen, während gleichzeitig über die Zunge starke Hebelkräfte auf den Achsbolzen wirksam werden.High requirements are generally placed on the storage of the tongue with regard to mechanical resilience and accuracy of the tongue guidance, in particular when the latch needles work in high-speed knitting machines or when knitting robust yarns. The wedge effects triggered by the tongue during the knitting process on the needle shaft cheeks delimiting the longitudinal slot try to spread them apart, while at the same time strong lever forces act on the axle bolt via the tongue.
Die Lagerung der Zunge mittels ihrer Lagerbohrung auf der glatten zylindrischen Mantelfläche eines durchgehenden Achsbolzens ergibt eine sehr genaue und verschleißfeste Zungenführung. Trotzdem sind Zungennadeln mit solchen durchgehenden Achsbolzen heute nahezu bedeutungslos, weil sie bei hoher, insbesondere dynamischer Belastung unter Backenbrüchen leiden. Der Achsbolzen ist nämlich mit den Nadelschaftwangen endseitig starr verbunden, bspw. verschraubt oder verschweißt (DE-C1-12 96 734, CH-A-476 141) oder mittels aus dem Material der Nadelschaftwangen durch einen Prägevorgang ausgeformter Fixierelemente die in Ausnehmungen des Achsbolzens eingreifen (US-A-27 67 566, DE-C1-11 59 585), wodurch sich eine starre und quer zur Nadelsymmetrieachse völlig unelastische Zungenlageranordnung ergibt, die als Ursache für frühzeitige Backenbrüche erkannt wurde. Es werden deshalb bis heute in der Praxis nahezu durchweg Zungennadeln eingesetzt, bei denen die Nadelzunge mit ihrer Lagerbohrung auf zwei aus dem Material der Nadelschaftwangen herausgedrückten Lagerzapfen schwenkbar gelagert ist (US-A-39 34 109, GB-C-836 297). Wegen des unvorhersehbaren Fließverhaltens des in die Lagerbohrung der Zunge hineingedrückten Materials der Nadelschaftwangen sind diese durch einen Prägevorgang erzeugten und mit den Nadelschaftwangen verbundenen Lagerzapfen aber an ihrer Mantelfläche mehr oder minder unregelmäßig, mit dem Ergebnis, daß der Flächentraganteil der Nadelzunge auf den Lagerzapfen auch bei einer fabrikneuen Nadel verhältnismäßig klein ist.The storage of the tongue by means of its bearing bore on the smooth cylindrical outer surface of a continuous axle bolt results in a very precise and wear-resistant tongue guide. Nevertheless, latch needles with such continuous axle bolts are almost insignificant today because they suffer from broken jaws when subjected to high, particularly dynamic loads. The axle pin is namely rigidly connected at the end to the needle shaft cheeks, for example screwed or welded (DE-C1-12 96 734, CH-A-476 141) or by means of fixing elements formed from the material of the needle shaft cheeks by an embossing process which engage in recesses in the axle pin (US-A-27 67 566, DE-C1-11 59 585), which results in a rigid and transverse to the axis of symmetry completely inelastic tongue bearing arrangement, which was recognized as the cause of premature jaw fractures. To this day, tongue needles are used almost consistently in practice, in which the needle tongue with its bearing bore is pivotally mounted on two bearing pins pressed out of the material of the needle shaft cheeks (US-A-39 34 109, GB-C-836 297). Because of the unpredictable flow behavior of the material of the needle shaft cheeks pressed into the bearing bore of the tongue, the bearing pins produced by an embossing process and connected to the needle shaft cheeks are more or less irregular on their outer surface, with the result that the area bearing portion of the needle tongue on the bearing pins is also one brand new needle is relatively small.
Zum Stand der Technik in der Bundesrepublik Deutschland gehört auch der Vorschlag (DE-A-35 46 037), lediglich in einer der beiden den Längsschlitz begrenzenden Nadelschaftwangen eine Bohrung vorzusehen und in diese einen Achsstift von etwa 2/3 der Nadelschaftdicke einzupressen, der an der gegenüberliegenden Schaftwange anliegt, mit der er gegebenenfalls verschweißt ist. Zusätzlich kann der Achsstift durch einen die Bohrung der Schaftwange ringförmig umgebenden Eindruck eines Prägewerkzeuges fixiert sein. Eine einseitige Nadelschaftwangenbohrung ist insbesondere bei dünnen Nadeln in der Massenfabrikation wirtschaftlich nicht herstellbar; auch ist eine einseitige Beanspruchung einer Zungennadel im Bereiche ihrer Zungenlagerung unerwünscht.The state of the art in the Federal Republic of Germany also includes the proposal (DE-A-35 46 037) to provide a bore in only one of the two needle shaft cheeks delimiting the longitudinal slot and to press in an axle pin of approximately 2/3 of the needle shaft thickness in this, the of the opposite cheek, with which it may be welded. In addition, the axle pin can be fixed by an impression of an embossing tool that surrounds the bore of the shaft cheek in a ring. A one-sided needle shaft cheek drilling is not economically feasible, especially with thin needles in mass production; one-sided stress on a latch needle in the area of its latch support is also undesirable.
Aufgabe der Erfindung ist es deshalb, hier abzuhelfen und eine Zungennadel zu schaffen, die einerseits die Vorzüge hinsichtlich Genauigkeit und Verschleißfestigkeit der Zungenlagerung einer mit einem durchgehenden Achsbolzen versehenen Zungennadel aufweist und andererseits auch über lange Betriebszeiträume ihre volle Gebrauchstauglichkeit ohne die Gefahr des Auftretens von Backenbrüchen behält.The object of the invention is therefore to remedy this situation and to create a latch needle which, on the one hand, has the advantages with regard to accuracy and wear resistance of the latch bearing of a latch needle provided with a continuous axle bolt and, on the other hand, maintains its full suitability for use over long operating periods without the risk of the occurrence of broken jaws .
Zur Lösung dieser Aufgabe ist die eingangs genannte Zungennadel erfindungsgemäß dadurch gekennzeichnet, daß die Fixierelemente lediglich als axiale Anschläge für den Achsbolzen in einer Richtung wirkend in der Nähe der nach außen weisenden, in der Tiefe der Bohrungen der Nadelschaftwangen liegenden freien Stirnseiten des Achsbolzens in die Bohrungen der Nadelschaftwangen ragend angeordnet sind.To achieve this object, the latch needle mentioned at the outset is characterized according to the invention in that the fixing elements act only as axial stops for the axle bolt in one direction in the vicinity of the outward-facing free end faces of the axle bolt lying in the depth of the holes in the needle shaft cheeks in the bores the needle shaft cheeks are arranged protruding.
Auf der glatten zylindrischen Mantelfläche des einstückig durchgehenden Achsbolzens findet die Zunge mit ihrer Lagerbohrung eine einwandfreie Lagerung mit größtmöglichem Flächentraganteil und damit entsprechend kleiner spezifischer Drehlager-Flächenbelastung. Die in die Bohrung der Nadelschaftwangen hineinverformten Fixierelemente sorgen dafür, daß sich der Achsbolzen im Laufe der Zeit nicht nach auswärts schieben und die Zunge in ihrer Lagerung gefährden kann. Da die Nadelschaftwangen mit dem Achsbolzen nicht starr verbunden sind, können sie seitlich quer zu der Nadelsymmetrieebene elastisch in dem jeweils erforderlichen Maße ausweichen, so daß eine entsprechende quer zur Nadelsymmetrieachse wirksame Elastizität gewährleistet ist und Backenbrüche damit sicher verhütet werden.On the smooth cylindrical outer surface of the one-piece axle pin, the tongue with its bearing bore is perfectly supported with the largest possible surface area and therefore a correspondingly small specific pivot bearing surface load. The fixing elements deformed into the bore of the needle shaft cheeks ensure that the axle bolt does not slide outward over time and can endanger the tongue in its storage. Since the needle shaft cheeks are not rigidly connected to the axle bolt, they can deflect laterally transversely to the plane of needle symmetry to the extent required, so that a corresponding elasticity that is effective transversely to the axis of needle symmetry is ensured and jaw fractures are thus reliably prevented.
In einer bevorzugten Ausführungsform ist aus dem Material der Nadelschaftwangen als Fixierelement jeweils ein ringförmiger Materialwulst ausgeformt. Außerdem ist es häufig zweckmäßig, wenn die Fixierelemente im axialen Abstand zu den benachbarten Stirnseiten des Achsbolzens stehen, so daß auch eine nach einwärts gerichtete elastische Bewegung der Nadelschaftwangen erforderlichenfalls unbehindert möglich ist.In a preferred embodiment, an annular material bead is formed from the material of the needle shaft cheeks as the fixing element. In addition, it is often expedient if the fixing elements are axially spaced from the adjacent end faces of the axle bolt, so that an inward elastic movement of the needle shaft cheeks is possible without hindrance if necessary.
Schließlich hat es sich als vorteilhaft erwiesen, wenn der Achsbolzen mit seinen nach außen weisenden Stirnseiten im wesentlichen in der dem Längsschlitz benachbarten Hälfte der Bohrung in den Nadelschaftwangen liegt.Finally, it has proven to be advantageous if the axle bolt with its outside facing end faces is essentially in the half of the bore adjacent to the longitudinal slot in the needle shaft cheeks.
In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt. Es zeigen:
- Fig. 1 eine Zungennadel gemäß der Erfindung, teilweise im axialen Längsschnitt, im Ausschnitt und in einer Seitenansicht und
- Fig. 2 die Zungennadel nach Fig. 1, geschnitten längs der Linie 11-11 der Fig. 1 in einer Seitenansicht und in einem anderen Maßstab.
- Fig. 1 is a latch needle according to the invention, partly in axial longitudinal section, in detail and in a side view
- Fig. 2, the latch needle of Fig. 1, cut along the line 11-11 of Fig. 1 in a side view and on a different scale.
Die Zungennadel weist einen Nadelschaft 1 auf, an den einenends einstückig ein Haken 2 angeformt ist und der nicht weiter dargestellte Füße tragen kann, die in bekannter Weise mit Schloßteilen von Strickmaschinen etc. zusammenwirken. In dem Nadelschaft 1 ist ein symmetrisch zu der Längsmittelebene der Nadel verlaufender Längsschlitz 3 eingefräst, der sich über einen der Flusenabfuhr dienenden Durchbruch 4 zur Nadelschaftunterkante öffnet. In dem Längsschlitz 3 ist eine Zunge 5 schwenkbar gelagert, die einenends einen in der dargestellten geschlossenen Stellung die Hakenspitze 6 abdeckenden Zungenlöffel 7 trägt und deren in den Längsschlitz 3 mit parallelen Flanken eingepaßter Schaft 8 eine Lagerbohrung 9 aufweist. In den den Längsschlitz 3 seitlich begrenzenden Nadelschaftwangen 10 ist jeweils eine zu der bei 11 angedeuteten Schwenkachse der Zunge 5 koaxiale Querbohrung 12 ausgebildet, in die ein den Längsschlitz 3 überquerender glattwandiger zylindrischer Achsbolzen 13 im Schiebesitz eingefügt ist. Auf dem Achsbolzen 13 ist die Zunge mit ihrer Lagerbohrung 9 mit kleinem radialem Lagerspiel gelagert, das beispielsweise einer Durchmesserdifferenz von + 0,001 mm und weniger entspricht. Zusammen mit dem sehr engen Zungenlagerspiel in Achsrichtung zwischen den beiden Nadelschaftwangen 10 ergibt sich damit eine äußerst präzise und belastungsfähige Zungenlagerung, die sich gleichzeitig durch Verschleißfestigkeit auszeichnet.The latch needle has a needle shaft 1, on which a
Der Achsbolzen 13 liegt mit seinen nach außen weisenden parallelen Stirnflächen 14 in der dem Längsschlitz 3 benachbarten Hälfte der jeweiligen Bohrung 12, wobei er bei dem veranschaulichten Ausführungsbeispiel etwa bis zur Mitte der Bohrungstiefe ragt. Er ist in den Bohrungen 12 durch in diese Bohrungen ragende Fixierelemente axial festgelegt, die in der Nähe der freien Stirnflächen 14 des Achsbolzens 13 liegen und aus dem Material der Nadelschaftwangen 10 ausgeformt sind. Diese Fixierelemente sind bei dem dargestellten Ausführungsbeispiel jeweils in Gestalt eines ringförmigen Materialwulstes 15 ausgebildet, der in einem kleinen axialen Abstand 16 zu den benachbarten Stirnflächen 14 des Achsbolzens 13 liegt. Da die beiden Materialwulste 15 lediglich als axiale Anschläge wirken, die eine unzulässig weite seitliche Verschiebung des Bolzens 13 in den Bohrungen 12 verhindern, sonst aber keine starre Verbindung zwischen dem Achsbolzen 13 und den Nadelschaftwangen 10 besteht, können die Nadelschaftwangen 10 seitlich elastisch ausweichen, wenn sie im Betrieb einer entsprechenden Wechselbelastung unterworfen sind. Damit ist der Gefahr von Backenbrüchen abgeholfen.The
Anstelle der Ringwülste 15 könnten auch finger-oder zahnartige Fixierelemente vorgesehen werden, die in dem Material der Nadelschaftseitenwangen 10 durch einen Prägevorgang ausgebildet sind und in die Bohrungen 12 in entsprechender Weise hineinragen.Instead of the
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3600621 | 1986-01-11 | ||
| DE3600621A DE3600621C1 (en) | 1986-01-11 | 1986-01-11 | Tongue needle for textile machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0232466A1 EP0232466A1 (en) | 1987-08-19 |
| EP0232466B1 true EP0232466B1 (en) | 1990-07-25 |
Family
ID=6291680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86114374A Expired - Lifetime EP0232466B1 (en) | 1986-01-11 | 1986-10-17 | Latch needle for textile machines |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4723425A (en) |
| EP (1) | EP0232466B1 (en) |
| JP (1) | JPS62162056A (en) |
| KR (1) | KR890001494B1 (en) |
| CN (1) | CN86108796B (en) |
| CA (1) | CA1270123A (en) |
| DE (2) | DE3600621C1 (en) |
| ES (1) | ES2016238B3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3800802C1 (en) * | 1988-01-14 | 1989-02-16 | Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De | |
| FR2639964B1 (en) * | 1988-12-06 | 1991-01-11 | Aerospatiale | IMPROVED OPENING CHAS NEEDLE |
| DE4334051C1 (en) * | 1993-10-06 | 1995-02-16 | Groz & Soehne Theodor | Latch needle for textile machines |
| EP2224048B1 (en) | 2009-02-26 | 2011-08-31 | Groz-Beckert KG | Latch needle with rotating axle pin |
| PT2604359T (en) | 2011-12-14 | 2017-07-24 | Groz Beckert Kg | Latch needle with improved latch bearing and its method of manufacturing |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US210653A (en) * | 1878-12-10 | Improvement in knitting-machine needles | ||
| US2767566A (en) * | 1955-01-25 | 1956-10-23 | George A Parsons | Latch needle pivot |
| GB836297A (en) * | 1958-01-23 | 1960-06-01 | Torrington Co | Improvements in or relating to bearings for latch knitting needles |
| FR1203866A (en) * | 1958-05-20 | 1960-01-21 | Lebocey Aiguilles | Hinged paddle needle for hosiery crafts |
| DE1159585B (en) * | 1961-11-23 | 1963-12-19 | Groz & Soehne Theodor | Latch needle for knitting machines |
| FR1340474A (en) * | 1962-11-22 | 1963-10-18 | Groz & Soehne Theodor | Pallet needle for knitting machines or similar machines |
| GB1142409A (en) * | 1966-06-21 | 1969-02-05 | Groz & Soehne Theodor | A latch needle for knitting machines |
| DE1296734B (en) * | 1967-12-18 | 1969-06-04 | Groz & Soehne Theodor | Latch needle for knitting machines |
| GB1183430A (en) * | 1967-12-18 | 1970-03-04 | Groz & Soehne Theodor | Latch Needle for Knitting Machines |
| DE1906892A1 (en) * | 1969-02-12 | 1970-05-14 | ||
| US3934109A (en) * | 1972-06-23 | 1976-01-20 | The Torrington Company | Latch pivot for latch needle |
| DE3546037A1 (en) * | 1985-03-14 | 1986-09-18 | Ulrich Dipl.-Ing. 7470 Albstadt Hofmann | Method for the production of the latch support in knitting-machine needles |
-
1986
- 1986-01-11 DE DE3600621A patent/DE3600621C1/en not_active Expired
- 1986-10-17 ES ES86114374T patent/ES2016238B3/en not_active Expired - Lifetime
- 1986-10-17 EP EP86114374A patent/EP0232466B1/en not_active Expired - Lifetime
- 1986-10-17 DE DE8686114374T patent/DE3672997D1/en not_active Expired - Lifetime
- 1986-12-27 CN CN86108796A patent/CN86108796B/en not_active Expired
-
1987
- 1987-01-06 US US07/000,882 patent/US4723425A/en not_active Expired - Lifetime
- 1987-01-09 CA CA000527003A patent/CA1270123A/en not_active Expired - Fee Related
- 1987-01-09 JP JP62001968A patent/JPS62162056A/en active Granted
- 1987-01-10 KR KR1019870000132A patent/KR890001494B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62162056A (en) | 1987-07-17 |
| KR870007321A (en) | 1987-08-18 |
| EP0232466A1 (en) | 1987-08-19 |
| JPH0157174B2 (en) | 1989-12-04 |
| DE3672997D1 (en) | 1990-08-30 |
| DE3600621C1 (en) | 1987-05-07 |
| CA1270123A (en) | 1990-06-12 |
| CN86108796A (en) | 1987-07-22 |
| CN86108796B (en) | 1988-09-14 |
| ES2016238B3 (en) | 1990-11-01 |
| KR890001494B1 (en) | 1989-05-04 |
| US4723425A (en) | 1988-02-09 |
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