EP1082475B1 - Drallscheibe sowie verfahren zur herstellung einer drallscheibe - Google Patents
Drallscheibe sowie verfahren zur herstellung einer drallscheibe Download PDFInfo
- Publication number
- EP1082475B1 EP1082475B1 EP99910077A EP99910077A EP1082475B1 EP 1082475 B1 EP1082475 B1 EP 1082475B1 EP 99910077 A EP99910077 A EP 99910077A EP 99910077 A EP99910077 A EP 99910077A EP 1082475 B1 EP1082475 B1 EP 1082475B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- hub
- produced
- twisting disc
- xxx
- 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
- D01H7/923—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of rotating devices
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist
- D02G1/08—Rollers or other friction causing elements
- D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist
- D02G1/08—Rollers or other friction causing elements
- D02G1/087—Rollers or other friction causing elements between the flanks of rotating discs
Definitions
- the invention relates to a swirl disk for false twisting of a textile thread for Frictional false twister consisting of a hub and a tire with peripheral Friction surface, also a method for producing a swirl disk for false twisting a textile thread for friction twist, consisting of a hub and a Tires as a peripheral friction surface.
- Ceramic swirl discs can be used under certain conditions.
- the central disadvantage of ceramics is limited friction.
- a high coefficient of friction between the thread and the swirl disk would in itself be rubber materials ideal.
- Classic rubber materials are sufficient in terms of abrasion and Tear resistance to the requirements, especially at higher temperatures no more.
- rubber materials are not just enormous Variety of varieties and blends included, but that there are basically three There are processing options, namely casting, vulcanizing and thermal Melt or injection molding.
- a metallic disc is used to stiffen the element, which is enclosed by the rubber-elastic material.
- the Japanese publication JP-A-Hei-6-240 528 also starts from polyurethane and proposes one specific material mix for the swirl discs.
- Polyurethane prepared by a polyol based on polycarbonate polyol and diisocyanates based on Para-phenylene diisocyanates.
- the advantages are good temperature resistance, a high coefficient of friction and a long service life. With many attempts it was confirmed that the two publications mentioned are very good Approaches show that both solutions have two central criteria, namely Inadequate consideration of manufacturing process and product price.
- the inventors had set themselves the task of building the swirl disk and the To optimize the choice of material so that a manufacturing process, especially injection molding is selectable, which can optimize the factors manufacturing cost-material costs.
- the goal was the best possible material quality, inexpensive production and low Material costs for an entire swirl disc, so that given the quality of the Unit price of a swirl disc is as low as possible and the service life is as long as possible.
- the swirl disk according to the invention is characterized in that the peripheral The friction surface of the tire is rounded and the tire is thin-walled with approximately constant Is formed thick, and made of a composite material with high heat resistance Filling in concentrations of 1 to 50% addition, especially an aramid addition of 1 - 50%, with the tire being an insoluble, macromolecular compound, or by pouring or encasing one with support bodies with the hub connected support ring a mechanical connection is made.
- the method according to the invention is characterized in that the peripheral The friction surface of the tire is rounded and the tire is thin-walled with approximation constant thickness and is made of a composite material with high heat resistance Filling in concentrations of 1 to 50% addition, especially one Aramid addition of 1 - 50%, is produced in the injection molding process, with the Mature an insoluble, macromolecular compound or by pouring or Enveloping a support ring connected to support bodies with the hub mechanical connection is established.
- the new invention proposes a tire-like shape for the Friction section before.
- the tire-like shape has the decisive advantage that from one minimum thickness of the material the rubber-elastic behavior, same as that The coefficient of friction is fully retained, which is the case with a thin friction layer of e.g. a few tenths of a millimeter would not be the case.
- Another big advantage is the amount of material for the most expensive material.
- the tire only needs a part e.g. 10 - 25% of the most expensive material in relation to one Solid rubber tires of the prior art. In the tire material itself can still more expensive fillers can be mixed in in relatively low percentages.
- the invention also permits a large number in particular without an adhesion promoter advantageous embodiments.
- the tire is preferably thin-walled, and has at least a wall thickness of about 1 mm, preferably in the area from 1 to 3 mm.
- the hub may have a support ring that is similar in shape to the outer friction surface of the tire and is enveloped by the tire. Will the Hub manufactured as an injection molding in a separate operation, so this can have a support ring which is fixedly connected via a plurality of spokes and which is essentially enclosed by the composite material. Hub and support ring are connected in a spoke-like manner by a large number of supporting bodies, the Support ring and the support body completely cast through the composite material become.
- the tire should have an approximately constant thickness at every point.
- the tire is cap-like on the hub attached and with an insoluble, macromolecular, connection to the hub manufactured.
- the new solution opens up a new injection molding technology for the Production of the swirl discs, as will be shown in the following.
- the tire material consists of an aramid-filled thermoplastic polyurethane, it can be processed using injection molding technology. It is preferred from structural components such as para-phenylene diisocyanate (PPDI) and polycarbonate diol.
- the hub made of hard thermoplastic, especially a specially modified thermoplastic hard polyurethane is made with 40% glass fibers.
- the Hub manufactured in a previous process step in injection molding technology in inserted a second injection mold and the tire composite material to the hub in sprayed a second step.
- the swirl disk in a single-stage injection molding process in the two cavities of a single tool is where the new solution comes in to carry.
- Single-stage injection molding processes are in themselves in special sectors known and allow moldings to be produced in a single mold in one step. This is economically only possible if very large numbers of identical Objects are produced. The cost per item is significantly lower Relationship to the classic two-step process.
- the big disadvantage is single stage injection molding of several components in massively more expensive costs for the injection molds.
- the big problem here is actually the word "if". If a product is good and cheap, you sell a lot. If the product is not good but conversely only a few.
- the majority of the qualitative test examinations can be done in the laboratory.
- the crucial test, that in automotive engineering The practical test has only recently become popular as the "calibration test”. Before not a large number of swirl discs have proven themselves in practice, it is not bought in large quantities. On the other hand, an object can only be in the case of mass production, therefore inexpensive manufacture in large quantities.
- On particularly important aspect of the new invention is now that the same solution can gradually be converted into a rational production technology, whereby already the first. Level makes commercial sense.
- the sprayed swirl disks are preferred in relation to the Concentricity subjected to a grinding process, at least as far as one Accuracy in injection molding does not require much more effort.
- FIGS. 1 and 2a and 2b On complete friction texturing unit 2 has three shafts 3, 3 'and 3 "each three Swirl disks 1, which on a drive motor, not shown, on a very high speed of over 10,000 rpm. are set in rotation.
- the Yarn 4 a false twist 5 is forced, which is based on the mechanical Action by the friction-texturing unit 2 essentially dissolves again, as indicated on the yarn 6 with parallel lines.
- the friction swirl generation is now the most widespread technology for over 2 decades and has been very good proven. For the technology, reference is made to the corresponding specialist literature.
- the all false twist work takes place on the relatively small friction surface 7, which with the scalp 7 'limited and is similar to the outer shape of a car or Bicycle tire.
- the friction surface 7 is also with a thick dashed line marked.
- the swirl disk 1 consists of a tire 8, as well as an inward one Hub 9 with a concentric bore 10 for mounting on the shafts 3, 3 ', 3 ". It is important for swirl discs that they are 11 have a maximum possible concentricity. The majority of the swirl disks, at least those with higher quality are therefore in the area of the entire friction surface, especially ground in terms of concentricity.
- the outer peripheral surface is like with diameter D is indicated, circular. Have hub 9 and tire 8 different functions and are therefore preferred from different Materials made. Due to the additional heat and friction stress accordingly higher demands are made on the tires.
- TPU material for the tires. It was in In the course of the development the following experiences are gained. TPUs are, for example, the rubber materials in terms of abrasion and tear resistance (if there is a crack from the outside and enlarges inwards) think many times over. That is why they are particularly suitable for use in Textur michsepticn. From the point of view of the users of these products, however the following disadvantages:
- the polyurethanes produced from the components already mentioned can also be used Aramidkurzitessmaschine. Pulp or powder can be filled. However, they are suitable also other thermostable polymers for addition as a functional high-performance filler. These generally have an aromatic structure and glass transition temperatures of over 100 ° C.
- Polyimides Polyimides, polybenzimidazoles, polyphenylene sulfides, polyphenylene, polyoxdiazoles, poly (para-phenylene-2,6, 2,6-benzene to oxazole) PBO -benzobisoxazole (PBO), polyether ether ketone (PEEK), polyester, poly-para-benzoic acid, polysulfones, polyhydantoin, Polyesterimide, polyamideimide, polybismaleimide, polyarylamide, polyarylsulfone, Polyphenylene sulfone and carbon fibers.
- Aramid as an internal composite material for the Tire differs from conventional polymer fillers and is temperature resistant up to more than 400 ° C (slight change in mechanical properties) is abrasion-resistant and non-abrasive itself and is chemically resistant against the known texturing media.
- TPU Aramide filling with the described hard thermoplastic has great advantages in terms of manufacturing costs.
- An extension of the Service life of friction disks (reduction of recall and susceptibility to Incisions), improvement of the textile technical parameters (yarn quality, stability the ripple etc.) further improve the mechanical properties high temperatures (100 - 125 ° C) to be expected. This also applies to the mentioned high temperature polymers if they are in the form of fibers or powders Filler can be added to the thermoplastic polyurethane.
- Figures 3a, 3b and 3c show a first example of a hub design.
- the tire is not non-positive, that is, not by chemical ones Connection linked to the hub.
- the connection is made purely mechanically via a Support ring 20, the one over many spokes 21 with the hub ring 22 Injection molded part.
- the hub ring is in turn connected to one Hub disc 23 and a hub bearing 24.
- the entire hub is in one piece injected into a first working process.
- the same hub 9 is already in FIG. 3d molded around the tire material.
- the tire material encompasses the support ring 20 completely, with the spokes 21 being cast in by the tire material become.
- the entire tire material completely encloses the support ring 20 twice, both in the circumferential direction and in cross section (FIG. 3d).
- FIGS. 4a to 4c show further particularly advantageous configurations that can be produced in one or two stages using injection molding technology. Instead of real physical anchoring becomes a molecular connection provided that which is based on the material composition described above is achievable.
- FIG. 4a shows a simple cap shape of the Tire 8x. Tire material RM and the hub material NM form one as it were Connection that can only be separated with violence. The same applies to the Variants Figure 4b and 4c.
- the tire 8xx is designed as a hat.
- the tire is additionally secured with two beads 30, which on inner end of two side protective covers 31 is attached.
- the Solutions according to Figures 4b and 4c have the great advantage that in relation to the chemically very aggressive preparation agents that are attached to the yarn in the previous processing can be applied.
- Figure 5 shows the highest level of automation as a one-step manufacturing process of swirl disks.
- the real problem here is the designs of the Injection molding tool 45 and the timing and local management of the both material quantities for the hub and the tire. Are the appropriate Once injection molding problems have been solved, swirl discs of the highest quality can be used the minimum manufacturing costs are produced.
- FIG. 6 shows the older, two-stage injection molding process Step in a mold 40 via an injection molding screw 41 with NM hub material Hub 9 manufactured.
- the hub 9 is placed in a second mold 42 and over a second injection screw 43 injected with tire material RM of the tires.
- PBO para-phenylene-2,6-benzobisoxazole
- PPSO 2 polyphenylene sulfone
- the new invention allows the goal to be reached economically, step by step, even with several intermediate stages.
- the single-stage injection molding process the tires and hub may no longer be distinguishable from the eye, depending on the material colors. Since the material composition may no longer be recognizable from the outside, it is also proposed to color the materials of the swirl disk in order thereby to provide quality recognition via the color.
- the hub can be marked with orange (RAL 2004 / RAL 2008) and the tire can be colored in lighter colors, eg yellow, green, gray, or possibly red or blue.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
- Unempfindlichkeit im Hinblick auf Spinn-Präparation auch bei Wärmeeinflüssen,
- die mechanische Festigkeit bei hoher Umlaufgeschwindigkeit
- die Länge der Lebensdauer einer Einzelscheibe
- ein guter Reibschluss zwischen Garn- und Drallscheibe.
- Verbesserungen der Einreissfestigkeit (Einschnitte an der Scheibenoberfläche) und zwar auf ein Niveau, mit dem unter Praxisbedingungen die Beschädigungen quasi nicht mehr vorkommen.
- Verringerung der Temperaturabhängigkeit von den bereits erwähnten mechanischen Eigenschaften: E-Modul, Zugfestigkeit, Weiterreissfestigkeit, und dadurch beträchtliche Erhöhung der Lebensdauer.
- Verringerung von Abrieb und Verschleiss.
- Als Folge der Qualitätsverbesserung der TPU's sind auch Verbesserungen an den textil-technologischen Kennwerten der damit hergestellen Garne (z.B. Erhöhung der Kräuselung und Stabilität der Kräuselung) zu erzielen.
Resistenz gegenüber den chemischen Präparationsmitteln bzw. gute Chemikalienbeständigkeit, hundertprozentige Parakristallinität, sehr hoher Orientierungsgrad der Moleküle, sehr hohe Glasübergangstemperatur, extreme thermische Stabilität, extrem grosse Zugfestigkeitswerte, hoher E-Modul, ebenfalls hohe Festigkeit bei niedrigem Gewicht, keine Sprödigkeit, hohe Dimensionsstabilität, nicht abrasiv, jedoch abriebbeständig. Beschreibung von Aramid (exakte chemische Bezeichnung): Poly-(para-phenylen-terephthalamid) Hersteller: Akzo Nobel und DuPont, Handelsnamen: Twaron und Kevlar Aramide können als Langfaser, Kurzfaser, Pulver und Pulpe eingesetzt werden. Nach den momentanen Kenntnissen wird die Pulverform bevorzugt, da sich diese besser eignet für die spritzgiessbaren TPU's. Alle bisherigen Untersuchungen haben bestätigt, dass Aramidfüllstoffe ideale Voraussetzungen haben für die Reifenherstellung, vor allem wenn speziell modifizierte Hart-Thermoplaste als Nabenmaterial eingebunden werden. Thermoplast mit besonderer Bevorzugung eines Hart-TPU, speziell modifiziert mit 40 % Glasfaser als Nabenmaterial weist unter enderem folgende Vorteile auf:
- 125°C Dauerbeständigkeit
- günstige Medien- und Hydrolysebeständigkeit
- gute Spritzgussverarbeitbarkeit,
- Ausrüstung mit interner Modifizierung, damit Haftung zum aufgespritzen TPU ohne Nachbehandlung möglich wird.
Da die Materialzusammensetzung von aussen gegebenenfalls nicht mehr erkennbar ist, wird ferner vorgeschlagen, die Materialien der Drallscheibe einzufärben, um dadurch über die Farbe eine Qualitätserkennung zu geben. Z.B. kann die Nabe mit orange (RAL 2004 / RAL 2008) gekennzeichnet, und der Reifen in helleren Farben, z.B. gelb, grün, grau, oder allenfalls rot oder blau eingefärbt werden.
Claims (14)
- Drallscheibe (1) zum Falschzwirnen eines textilen Fadens (4,6) für Friktionsfalschdraller bestehend aus einer Nabe(9) sowie einem Reifen mit peripherer Reibfläche (7),
dadurch gekennzeichnet, dass die periphere Reibfläche (7) des Reifens (8, 8x, 8xx, 8xxx) gerundet und der Reifen dünnwandig mit angenähert konstanter Dicke ausgebildet ist, und aus einem Verbundmaterial mit hochhitzebeständiger Füllung in Konzentrationen von 1 bis 50 % Zugabe, insbesondere einer Aramidzugabe von 1 - 50 % besteht, wobei mit dem Reifen eine unlösliche, makromolekulare Verbindung, oder durch Eingiessen bzw. Einhüllen eines mit Stützkörpern mit der Nabe verbundenen Stützringes eine mechanische Verbindung hergestellt wird. - Drallscheibe nach Anspruch 1,
dadurch gekennzeichnet, dass die hochtemperaturbeständigen Stoffe in einer Konzentration von 2 bis 20 % ausmachen. - Drallscheibe nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass der Reifen (8, 8x, 8xx, 8xxx) an jeder Stelle angenähert eine konstante Wandstärke in dem Bereich von 1 bis 3 mm aufweist. - Drallscheibe nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die Nabe (9) einen Stützring (20) aufweist, der formähnlich zu der äusseren Reibfläche (7) des Reifens (8, 8x, 8xx, 8xxx) ausgebildet und vom Reifen (8, 8x, 8xx, 8xxx) eingehüllt ist. - Drallscheibe nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Nabe (9) als Spritzgiesskörper hergestellt ist, mit einem, fest über eine Vielzahl von Speichen (21) verbundenen Stützring (20), der im wesentlichen durch das Verbundmaterial eingeschlossen wird. - Drallscheibe nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass der Reifen (8, 8x, 8xx, 8xxx) kappenartig auf der Nabe (9) aufgesetzt ist und eine kraftschlüssige makromolekulare Verbindung mit der Nabe (9) hergestellt ist. - Verfahren zur Herstellung einer Drallscheibe (1) zum Falschzwirnen eines textilen Fadens (4, 6) für Friktionsdraller, bestehend aus einer Nabe (9) sowie einem Reifen als periphere Reibfläche (7),
dadurch gekennzeichnet, dass die periphere Reibfläche (7) des Reifens (8, 8x, 8xx, 8xxx) gerundet und der Reifen dünnwandig mit angenähert konstanter Dicke ausgebildet ist und aus einem Verbundmaterial mit hochhitzebeständiger Füllung in Konzentrationen von 1 bis 50 % Zugabe, insbesondere einer Aramidzugabe von 1 - 50 %, im Spritzgiessverfahren hergestellt wird, wobei mit dem Reifen eine unlösliche, makromolekulare Verbindung oder durch Eingiessen bzw. Einhüllen eines mit Stützkörpern mit der Nabe verbundenen Stützringes eine mechanische Verbindung hergestellt wird. - Drallscheibe nach Anspruch 7,
dadurch gekennzeichnet, dass das Reifenmaterial (RM) aus einem aramidgefüllten thermoplastischen Elastomer besteht und mit Spritzgiesstechnik hergestellt ist. - Verfahren nach Anspruch 7,
dadurch gekennzeichnet. dass der Reifen (8, 8x, 8xx, 8xxx) aus einem Polyurethan auf der Basis von Para-Phenylendiisocyanat (PPDI) unter Verwendung von Polykarbonat und Polyätherkarbonatdiolen sowie deren Mischungen über einen Spritzgiessprozess mit hohem Druck hergestellt wird. - Verfahren nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet, dass die Nabe (9) aus einem speziell modifizierten Hartthermoplast hergestellt ist, bevorzugt aus Hart-TPU mit Glasfaseranteilen von grösser als 10%. - Verfahren nach Anspruch 7,
dadurch gekennzeichnet, dass die Nabe (9) in einem vorangehenden Verfahrensschritt in Spritzgiesstechnik hergestellt, in eine Spritzgiessform eingelegt und das Reifenverbundmaterial (RM) zu der Nabe (9) in einem zweiten Verfahrensschritt gespritzt wird. - Verfahren nach einem der Ansprüche 7 bis 11,
dadurch gekennzeichnet, dass die fertiggespritzte Drallscheibe (1) in Bezug auf den Rundlauf einem Schleifprozess unterworfen wird. - Verfahren nach einem der Ansprüche 7 bis 10,
dadurch gekennzeichnet, dass die Drallscheibe (1) in einem einstufigen Spritzgiessverfahren in den zwei oder mehreren Formhälften eines einzigen Werkzeuges geformt wird. - Verfahren nach einem der Ansprüche 7 bis 13,
dadurch gekennzeichnet, dass wenigstens das Reifenmaterial (RM), vorzugsweise sowohl das Reifenmaterial (RM) wie das Nabenmaterial (NM) zur Qualitätskennzeichnung eingefärbt wird, wobei das Nabenmaterial (NM) bevorzugt orange und das Reifenmaterial (RM) mit anderer heller Farbe, insbesondere gelb, grün oder grau oder allenfalls rot oder blau eingefärbt wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19815578A DE19815578C1 (de) | 1998-04-07 | 1998-04-07 | Drallscheibe sowie Verfahren zur Herstellung einer Drallscheibe |
DE19815578 | 1998-04-07 | ||
PCT/CH1999/000141 WO1999051803A1 (de) | 1998-04-07 | 1999-04-07 | Drallscheibe sowie verfahren zur herstellung einer drallscheibe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1082475A1 EP1082475A1 (de) | 2001-03-14 |
EP1082475B1 true EP1082475B1 (de) | 2002-08-28 |
Family
ID=7863885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99910077A Expired - Lifetime EP1082475B1 (de) | 1998-04-07 | 1999-04-07 | Drallscheibe sowie verfahren zur herstellung einer drallscheibe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1082475B1 (de) |
AU (1) | AU2919399A (de) |
DE (2) | DE19815578C1 (de) |
TW (1) | TW459077B (de) |
WO (1) | WO1999051803A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3739091A1 (de) | 2019-05-16 | 2020-11-18 | Saurer Technologies GmbH & Co. KG | Friktionsscheibe für eine falschdrallvorrichtung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070033739A1 (en) * | 2005-08-12 | 2007-02-15 | Austen Timothy F | Inflatable support system having thermoplastic polyurethane construction |
DE102005050068A1 (de) * | 2005-10-19 | 2007-04-26 | Saurer Gmbh & Co. Kg | Friktionsscheibe |
TWI768697B (zh) * | 2021-02-03 | 2022-06-21 | 南亞塑膠工業股份有限公司 | 摩擦滾輪成型模具及摩擦滾輪 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500208A1 (de) * | 1985-01-05 | 1986-07-10 | Manfred A. 8721 Euerbach Kress | Friktions-texturierelement |
DE8532434U1 (de) * | 1985-11-16 | 1986-01-02 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Reibrotor zum Falschdrallen von synthetischen Fäden |
US4893946A (en) * | 1989-05-15 | 1990-01-16 | Amkor Industries, Inc. | Roller for spinning frame |
JPH0867734A (ja) * | 1989-10-16 | 1996-03-12 | Nitta Ind Corp | 外周面に摩擦面を有する回転体およびその製造方法 |
US5400507A (en) * | 1992-10-26 | 1995-03-28 | Hurley & Harrison, Inc. | Method of changing a worn frictional surface of a rotator disc |
JP3283943B2 (ja) * | 1993-02-15 | 2002-05-20 | 北辰工業株式会社 | フリクションディスク |
JPH08170236A (ja) * | 1994-12-19 | 1996-07-02 | Nitta Ind Corp | 延伸仮撚機用フリクションディスク |
-
1998
- 1998-04-07 DE DE19815578A patent/DE19815578C1/de not_active Expired - Fee Related
-
1999
- 1999-03-31 TW TW088105094A patent/TW459077B/zh active
- 1999-04-07 AU AU29193/99A patent/AU2919399A/en not_active Abandoned
- 1999-04-07 DE DE59902473T patent/DE59902473D1/de not_active Expired - Fee Related
- 1999-04-07 EP EP99910077A patent/EP1082475B1/de not_active Expired - Lifetime
- 1999-04-07 WO PCT/CH1999/000141 patent/WO1999051803A1/de active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3739091A1 (de) | 2019-05-16 | 2020-11-18 | Saurer Technologies GmbH & Co. KG | Friktionsscheibe für eine falschdrallvorrichtung |
DE102019112892A1 (de) * | 2019-05-16 | 2020-11-19 | Saurer Technologies GmbH & Co. KG | Friktionsscheibe für eine Falschdrallvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
WO1999051803A1 (de) | 1999-10-14 |
EP1082475A1 (de) | 2001-03-14 |
DE19815578C1 (de) | 1999-08-26 |
DE59902473D1 (de) | 2002-10-02 |
TW459077B (en) | 2001-10-11 |
AU2919399A (en) | 1999-10-25 |
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