DE2432199A1 - Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip - Google Patents

Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip

Info

Publication number
DE2432199A1
DE2432199A1 DE2432199A DE2432199A DE2432199A1 DE 2432199 A1 DE2432199 A1 DE 2432199A1 DE 2432199 A DE2432199 A DE 2432199A DE 2432199 A DE2432199 A DE 2432199A DE 2432199 A1 DE2432199 A1 DE 2432199A1
Authority
DE
Germany
Prior art keywords
strip
steel wires
steel cord
continuous
longitudinal direction
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.)
Withdrawn
Application number
DE2432199A
Other languages
German (de)
Inventor
Juergen Bertram
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.)
KraussMaffei Berstorff GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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 Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Priority to DE2432199A priority Critical patent/DE2432199A1/en
Publication of DE2432199A1 publication Critical patent/DE2432199A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D2030/381—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre the inserts incorporating reinforcing parallel cords; manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/256—Sheets, plates, blanks or films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B29L2030/003—Plies; Breakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Tyre Moulding (AREA)

Abstract

A continuous steel cord strip for vehicle pneumatic tyres is made by arranging the parallel steel wires making up the strip so that they subtend a predetermined angle with the longitudinal axis of the strip. The individual parallel steel wired are evenly distributed over the periphery of a circle and move longitudinally. The so-distributed steel wires are then embedded in rubber to form a tubular structure and the resulting tube is finally helically slit open.

Description

Verfahren zur Herstellung von Stahlkordstreifen Die Erfindung betrifft ein Verfahren zur Herstellung eines fortlaufenden Stahlkordstreifens für die Anfertigung von Fahrzeugluftreifen, wobei die parallel zueinander liegenden Stahldrähte des Stahlkordstreifens unter einem bestimmten Winkel zur Längsrichtung des Streifens angeordnet sind. Method of making steel cord strips The invention relates to a method of making a continuous strip of steel cord for manufacture of pneumatic vehicle tires, the parallel steel wires of the Steel cord strip at a certain angle to the longitudinal direction of the strip are arranged.

Stahlkordstreifen werden für den Aufbau von Karkassen von sogenannten Radial- oder Gürtelreifen sowie für den Gürtel dieser Reifen verwendet.Steel cord strips are used for the construction of carcasses of so-called Radial or belted tires as well as used for the belt of these tires.

Es ist ein Verfahren zur Herstellung des eingangs bezeichneten Stahlkordstreifens bekannt, bei dem eng nebeneinanderliegende parallele Stahldrähte in einem Friktionskalander in Kautschuk gebettet werden. Es entsteht eine Stahlkordbahn mit zu deren Längskante parallel angeordneten Stahldrähten. Diese Stahlkordbahn wird je nach de Reifengröße des herzustellenden Gürtelreifens unter einem bestimmten Winkel gegenüber der Längsrichtung bei Einhaltung einer bestimmten Breite zu Streifen geschnitten. Es entstehen einzelne Stahlkordstreifen, in denen die Stahldrähte unter einem durch den Schnittwinkel bestimmten Winkel zur Längsrichtung angeordnet sind. Diese einzelnen Streifen werden nun von Hand überlappt und miteinander zu einem fortlaufenden Stahlkordstreifen durch z. B. Verkleben verbunden. Dieser fortlaufende Stahlkordstreifen wird zu Rollen aufgewickelt, die später in Verbindung mit den Spezialmaschinen zur Herstellung von Radialreifen verwendet werden.It is a method for producing the steel cord strip mentioned at the beginning known, in which closely spaced parallel steel wires in a friction calender be embedded in rubber. The result is a steel cord sheet with to its longitudinal edge steel wires arranged in parallel. This steel cord track is depending on the tire size of the radial tire to be produced at a certain angle with respect to the longitudinal direction cut into strips if a certain width is observed. It arise separate Steel cord strips in which the steel wires are at an angle through the cutting angle are arranged at a certain angle to the longitudinal direction. These individual strips will be now overlapped by hand and together to form a continuous strip of steel cord by z. B. Bonding connected. This continuous strip of steel cord becomes rolls wound up later in connection with the special machines for the production used by radial tires.

Der Nachteil des vorstehend beschriebenen Verfahrens ist darin zu sehen, daß es sich nicht um ein vollkontinuierliches Verfahren handelt. Das Schneiden einzelner Streifen und das aufwendige Verbinden dieser Streifen zu einen fortlaufenden erfordert einen großen technischen und personellen Aufwand. Weiter bilden die Verbindungsstellen zwischen den einzelnen Stahlkordstreifen Schwachstellen im fortlaufenden Streifen, die nicht die gleiche Beanspruchung wie der übrige Streifen vertragen können.The disadvantage of the method described above is therein too see that it is not a fully continuous process. The cutting individual strips and the elaborate connection of these strips to form a continuous one requires a great deal of technical and human resources. Next form the connection points between the individual steel cord strips weak points in the continuous strip, which cannot withstand the same stress as the rest of the strip.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, durch das ein vollkontinuierliches Herstellen eines fortlaufenden Stahlkordstreifens der eingangs geschilderten Art ermöglicht wird.The invention is based on the object of creating a method by the fully continuous production of a continuous steel cord strip of the type described above is made possible.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die einzelnen, parallel zueinander liegenden Stahldrähte gleichmäßig über einen Kreisumfang verteilt und längsbewegt werden, daß die derart verteilten Stahldrähte in Kautschuk zu einem Schlauch zusammenhängend eingebettet werden, und daß der Schlauch wendelförmig aufgeschnitten wird.The object is achieved according to the invention in that the individual, Steel wires lying parallel to each other evenly distributed over a circumference and are moved longitudinally so that the thus distributed steel wires in rubber become one Tube are embedded coherently, and that the tube is cut in a helical manner will.

Durch die Abstimmung der Vorschubgeschwindigkeit der Drähte bzw. des Schlauches, des Schlauchdurchmessers und der Schneidgeschwindigkeit zueinander, können Streifenbreite und Winkellage der Stahldrähte den durch die Reifenbaumerkmale gegebenen Anforderungen angepaßt werden.By coordinating the feed speed of the wires or the Hose, hose diameter and cutting speed to each other, The width of the strip and the angular position of the steel wires can be determined by the tire construction characteristics given Requirements can be adjusted.

Durch das erfindungsgemäße Verfahren ergibt sich ein fortlaufender Stahlkordstreifen ohne die Belastbarkeit des Streifens vermindernde Verbindungsstellen.The method according to the invention results in a continuous one Steel cord strips without joints that reduce the strength of the strip.

Vorteilhafterweise werden die kreisumfangsmäßig angeordneten, parallelen Stahldrähte im Extrusionsverfahren in Kautschuk zu einem Schlauch eingebettet. Hierbei kann ein herkömmlicher Extruder mit angeschlossenem Querspritzkopf Verwendung finden, dessen Austrittsdüse ringförmig ausgebildet ist.Advantageously, the circumferentially arranged, parallel Steel wires embedded in rubber in an extrusion process to form a hose. Here a conventional extruder with an attached cross-head can be used, whose outlet nozzle is annular.

Anhand, der schematischen Zeichnung wird ein Ausführungsbei spiel des erfindungsgemäßen Verfahrens im Prinzip näher erläutert. Zum Verständnis der Erfindung nicht erforderliche bekannte Einrichtungen sind der besseren Übersicht halber weggelassen.Based on the schematic drawing, a Ausführungsbei is playing of the method according to the invention explained in more detail in principle. To understand the Invention not required known devices are the better overview omitted for the sake of

Von einer hier nicht gezeigten Vorratseinrichtung kommende Stahldrähte 1 werden einem Qtierspritzkopf 2 eines Extruders 3 zugeführt. Der Querspritzkopf 2 weist an seiner Rückseite Zuführungsbohrungen 4 auf, die mit gleichen Abständen auf einem Kreis konzentrisch zur Spritzkopfachse angeordnet sind. Jede Zuführungsbohrung 4 nimmt einen Stahldraht 1 auf, so daß die Stahldrähte 1 kreisumfangsmäßig ausgerichtet sind und parallel zueinander liegen. Im Querspritzkopf 2 werden die Stahldrähte unmittelbar in vom Extruder 3 geförderte Kautschukmasse gebracht und anschliessend mit dieser über eine Ringdüse des Querspritzkopfes 2 abgeführt bzw. extrudiert, so daß ein Kautschukschlauch 5 mit achsparallelen Stahldraht einlagen entsteht.Steel wires coming from a storage device not shown here 1 are fed to an animal injection head 2 of an extruder 3. The cross-head 2 has feed bores 4 on its rear side, which are spaced equally are arranged on a circle concentric to the spray head axis. Any feed hole 4 takes up a steel wire 1, so that the steel wires 1 are aligned circumferentially and are parallel to each other. The steel wires are in the cross-head 2 brought directly into the rubber compound conveyed by the extruder 3 and then with this discharged or extruded via an annular nozzle of the cross-head 2, so that a rubber hose 5 deposits with axially parallel steel wire is created.

Der Schlauch 5 wird nach dem Querspritzkopf 2 durch eine geeignete, hier nicht gezeigte Einrichtung über einen verlängerten Dorn der Ringdüse abgezogen. In einer durch ein umlaufendes Messer 7 angedeuteten Schneideinrichtung wird der vom Dorn unterstützte Schlauch 5 wendelförmig aufgeschnitten. Es entsteht ein fortlaufender Stahlkordstreifen 8, dessen Stahldrähte 9 unter einem bestimmten Winkel zur Längsrichtung des fortlaufenden Stahlkordstreifens liegen. Der fortlaufende Stahlkordstreifen wird einer umlaufenden Aufwickelvorrichtung zugeführt.The hose 5 is after the cross-head 2 by a suitable, Device not shown here over an extended Thorn the Ring nozzle removed. In a cutting device indicated by a rotating knife 7 the hose 5 supported by the mandrel is cut open in a helical manner. It arises a continuous steel cord strip 8, the steel wires 9 under a certain At an angle to the longitudinal direction of the continuous steel cord strip. The ongoing Steel cord strip is fed to a revolving winder.

Soll die Winkellage der Stahldrähte 9 verändert werden, kann die Vorschubgeschwindigkeit des Schlauches 5 erhöht bzw. erniedrigt oder die Umlaufgeschwindigkeit des Schneidmesser 7 erniedrigt bzw. erhöht werden. Eine gewünschte Änderung der Breite des Stahlkordstreifens 8 läßt sich über eine Änderung des Schlauchdurchmessers erreichen. Bei gleicher Winkellage der Stahldrähte 9 ergibt eine Verkleinerung des Schlauchdurchmessers 5 einen weniger breiten Stahlkordstreifen 8 und umgekehrt.If the angular position of the steel wires 9 is to be changed, the feed rate can of the hose 5 increases or decreases or the rotational speed of the cutting knife 7 can be decreased or increased. A desired change in the width of the steel cord 8 can be achieved by changing the hose diameter. With the same The angular position of the steel wires 9 results in a reduction in the hose diameter 5 a less wide steel cord strip 8 and vice versa.

- PATENTANSPRÜCHE - - PATENT CLAIMS -

Claims (2)

PATENTANSPRÜCHE #1. Verfahren zur Herstellung eines fortlaufenden Stahlkordstreifens für die Anfertigung von Fahrzeugluftreifen, wobei die parallel zueinander liegenden Stahldrähte des Stahlkordstreifens unter einem bestimmten -Winkel zur Längsrichtung des Streifens angeordnet sind, da durch gekennzeichnet, daß die einzelnen, parallel zueinander liegenden Stahldrähte (1) gleichmäßig über einen Kreisumfang verteilt und längsbewegt werden, daß die derart verteilten Stahldrähte in Kautschuk zu einem Schlauch (5) zusammenhängend eingebettet werden, und daß der Schlauch (5) wendelförmig aufgeschnitten wird. CLAIMS # 1. Method of making a continuous Steel cord strip for the manufacture of pneumatic vehicle tires, with the parallel steel wires of the steel cord strip lying to one another at a certain angle are arranged to the longitudinal direction of the strip, characterized in that the individual, parallel steel wires (1) evenly over one Circumference distributed and moved longitudinally that the steel wires distributed in this way embedded in rubber to form a hose (5), and that the Hose (5) is cut helically. 2. Verfahren zur Herstellung eines fortlaufenden Stahlkordstreifens nach Anspruch 1, -dadurch gekennzeichnet, daß die kreisumfangsmäßig angeordneten, parallelen Stahldrähte im Extrusionsverfahren in Kautschuk zu einem Schlauch eingebettet werden. 2. Method of making a continuous strip of steel cord according to claim 1, characterized in that the circumferentially arranged, parallel steel wires embedded in rubber in an extrusion process to form a hose will. L e e r s e i t eL e r s e i t e
DE2432199A 1974-07-05 1974-07-05 Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip Withdrawn DE2432199A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2432199A DE2432199A1 (en) 1974-07-05 1974-07-05 Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2432199A DE2432199A1 (en) 1974-07-05 1974-07-05 Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip

Publications (1)

Publication Number Publication Date
DE2432199A1 true DE2432199A1 (en) 1976-01-22

Family

ID=5919728

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2432199A Withdrawn DE2432199A1 (en) 1974-07-05 1974-07-05 Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip

Country Status (1)

Country Link
DE (1) DE2432199A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004961A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Process and apparatus for manufacturing a tyre breaker band
EP1172476A1 (en) * 1999-12-27 2002-01-16 Fuji Seiko Co. Ltd. Rubber coated strand, belt, ply, tire using it, production device and method for them

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004961A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Process and apparatus for manufacturing a tyre breaker band
EP1172476A1 (en) * 1999-12-27 2002-01-16 Fuji Seiko Co. Ltd. Rubber coated strand, belt, ply, tire using it, production device and method for them
EP1172476A4 (en) * 1999-12-27 2002-08-21 Fuji Seiko Co Ltd Rubber coated strand, belt, ply, tire using it, production device and method for them

Similar Documents

Publication Publication Date Title
DE60115527T2 (en) Method for producing a tire carcass
DE2031198C3 (en) Method for applying a green tread to a tire carcass
DE3855488T2 (en) Device for the production of a belt for radial tires
EP2125351B1 (en) Method for the production of a vehicle tire, and vehicle tire
DE69819630T2 (en) Method and device for producing filler strips for tire bead cores
DE2144057A1 (en) Endless reinforcement insert and method of making it
DE2100247A1 (en) Reinforced tire fabric and process for its manufacture
DE3140850A1 (en) METHOD AND DEVICE FOR PRODUCING TIRES
DD263261A5 (en) METHOD FOR MANUFACTURING A FIRST VEHICLE RADIAL TIRE PREPARATION
DE1945675A1 (en) Process for the production of hoses containing reinforcement inserts from plastic masses, and an injection head for carrying out the process
CH631384A5 (en) METHOD AND DEVICE FOR PRODUCING A BLANK FOR A RADIAL BELT.
EP0537780A2 (en) Method of making a wrapped layer for a tyre
DE1680470A1 (en) Pneumatic tires and process for their manufacture
DE2723698A1 (en) METHOD FOR PRODUCING A CARCASS FOR A RADIAL TIRE AND CARCASS PRODUCED BY THIS PROCESS
DE2217639A1 (en) Method and apparatus for depositing a number of endless strips on a support surface
DE60315732T2 (en) METHOD FOR PRODUCING RUBBER COMPONENTS FOR AIR TIRES
DE3019108C2 (en)
DE69013286T2 (en) Process for the production of rubber tracks and rubber tracks produced therewith.
DE602005003698T2 (en) Method and device for producing a tire bead
DE2432199A1 (en) Mfr. of continuous steel cord strip for vehicle pneumatic tyres - where parallel steel wires of strip subtend angle with longitudinal direction of strip
DE2209343A1 (en) Method and apparatus for the continuous production of ring-shaped parts from reinforced rubber
DE3206636A1 (en) DEVICE FOR PRODUCING METAL STRINGS
DE69119512T2 (en) Method and device for producing a filled bead ring
DE1268371B (en) Device for cutting a roll of fabric layers embedded in rubber into individual rings as tread reinforcement inserts for pneumatic vehicle tires
DE1034495B (en) Ring-shaped pneumatic tire insert that is resistant to tensile loads

Legal Events

Date Code Title Description
8130 Withdrawal