EP0125505A2 - Câblé de renforcement en acier pour produits élastomères - Google Patents

Câblé de renforcement en acier pour produits élastomères Download PDF

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Publication number
EP0125505A2
EP0125505A2 EP19840104183 EP84104183A EP0125505A2 EP 0125505 A2 EP0125505 A2 EP 0125505A2 EP 19840104183 EP19840104183 EP 19840104183 EP 84104183 A EP84104183 A EP 84104183A EP 0125505 A2 EP0125505 A2 EP 0125505A2
Authority
EP
European Patent Office
Prior art keywords
wires
core
reinforcement rope
rope according
strand
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Withdrawn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
EP19840104183
Other languages
German (de)
English (en)
Inventor
Wolfgang Dr. Weidenhaupt
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.)
Akzo GmbH
Original Assignee
Akzo 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 Akzo GmbH filed Critical Akzo GmbH
Publication of EP0125505A2 publication Critical patent/EP0125505A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/206—Cores characterised by their structure comprising wires arranged parallel to the axis

Definitions

  • the invention relates to a reinforcement rope made of steel wires for elastomeric products, consisting of at least one strand, which consists of helically shaped wires, one or more of which are wound wires which are wound on two or more individual core wires, but which are not themselves wound around one another , wherein the helically shaped wires have the same pitch, the same pitch angle and the same direction of rotation, and the core wires are arranged bundled almost in phase.
  • Strands of this type are known as reinforcing cords in simple stranding from DE-PS 26 19 086. These reinforcement cords have proven to be particularly favorable for use as reinforcement cords in elastomeric products, since the wrapping wire or wires have an additional supporting function and, moreover, the elastomeric material also penetrates particularly well into the core area of the cord when the cord is embedded, and thus corrosion of the wires largely prevented even with severe damage.
  • Such reinforcing cords are usually embedded in layers in simple stranding in the elastomeric products, for example in the manufacture of vehicle tires, drive belts or conveyor belts.
  • Steel wires are usually arranged in one or two layers in simple stranding with a single wire diameter of usually 0.12 to 0.5 mm.
  • This higher load-bearing capacity is required, for example, when using reinforcing ropes in pneumatic truck tires and in air ceilings for earthmoving machines.
  • multi-stranded reinforcement ropes are used.
  • the object of the present invention is now to provide a reinforcement rope of the type mentioned in the beginning in two or more strands which, after being embedded in the elastomeric material, has approximately the same or the same behavior against corrosion as the cords in single stranding.
  • This task is achieved by a generic reinforcement. solved rope that the strand (s) are arranged as core strand (s), that the core strand (s) are evenly distributed around the circumference of several individual wires and the number of individual wires is greater than the number of all helically preformed wires.
  • the steel wires must bond well with the elastomeric material. For this reason, the steel wires are coated with a second material, plastic or another material, with a good tendency to bind between the steel wire and the coating material on the one hand and the coating material and elastomer material on the other hand. Steel wires coated with brass are preferred.
  • the object is also achieved in the manner described above when the core wires or core strand (s) are arranged next to one another and against one another, and each of the core wires is in linear contact with at least one other core wire, the contact line running parallel to the direction of the core wires , and the loop wires are arranged on the inside of the screw.
  • core strands are known as reinforcing cords in simple stranding from DE-PS 26 19 086. It is particularly favorable if the individual wires, which are arranged around the core strands, are present in one layer.
  • the object of the invention is achieved in a particularly advantageous manner in that the reinforcement cable consists of a single core strand and at least four individual wires wound around the core strand. Surprisingly, this construction results in a very high resistance to corrosion after reinforcement ropes are embedded in the elastomeric material. In addition, the penetration capacity of the elastomeric material into the reinforcement rope is very high, as can be demonstrated by a simple experiment described in more detail below.
  • a reinforcement rope is also advantageous, which consists of two or more core strands and at least seven individual wires wrapped around the core strands, the core strands advantageously being stranded together. It is also advantageous if the core strands are stranded together in the same way as the individual core strands themselves.
  • the wires of the reinforcement ropes advantageously have a diameter of 0.12 to 0.5 mm.
  • the lay length of the core strands is 8 to 25 mm.
  • the core strand (s) contain two to eight, preferably two core wires and up to four, preferably two wrapping wires.
  • the reinforcement rope is helically wrapped with at least one loop wire.
  • looping wires which are wound helically around the reinforcement rope, are flattened.
  • the reinforcing ropes according to the invention are preferably used in the manufacture of pneumatic vehicle tires, in particular pneumatic tires for trucks or earth moving machines.
  • FIG. 1 shows the basic structure of a reinforcement rope 6 according to the invention with a core strand 3, which consists of two core wires 1 and a flattened wrapping wire 2.
  • the core strand 3 is wound with nine individual wires 4, which are evenly distributed over the circumference.
  • the entire reinforcement rope 6 is wrapped in a helical manner with a loop wire 5, which can also be flattened.
  • a 7.5 cm long reinforcement rope 9 is embedded in rubber 8, the reinforcement rope 9 being visible at both end faces of the test specimen 7.
  • a sealing washer 10 and a pipe stop piece 11 are embedded in the rubber 8 in each test specimen 7.
  • test specimen 7 is connected gas-tight with a compressed air connection piece 14.
  • Compressed air connector 14 is connected to a compressed air source (not shown) via a transition piece 15, a pressure reducing valve 16 and a compressed air line 17.
  • a pipe 12 is connected in a gastight manner, the free end of which is immersed in a tub 18 filled with water 19.
  • the free end is bent upwards and is located under the opening of a measuring cylinder 20 filled with water at the start of the test, which is also immersed in the water bath 18, 19.
  • the height of the water column in the measuring cylinder 20 can be adjusted with the valve 21.
  • a pressure of 1 bar is set via the pressure reducing valve 16. If air can penetrate into the rubber mass 8 through the test specimen as a result of incomplete embedding of the reinforcement cable 9, the air bubbles which arise rise in the measuring cylinder 20. The amount of air accumulating in the measuring cylinder 20 per unit of time is measured.

Landscapes

  • Ropes Or Cables (AREA)
  • Tires In General (AREA)
EP19840104183 1983-05-16 1984-04-13 Câblé de renforcement en acier pour produits élastomères Withdrawn EP0125505A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3317792 1983-05-16
DE19833317792 DE3317792A1 (de) 1983-05-16 1983-05-16 Verstaerkungsseil aus stahldraehten fuer elastomere erzeugnisse

Publications (1)

Publication Number Publication Date
EP0125505A2 true EP0125505A2 (fr) 1984-11-21

Family

ID=6199100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840104183 Withdrawn EP0125505A2 (fr) 1983-05-16 1984-04-13 Câblé de renforcement en acier pour produits élastomères

Country Status (3)

Country Link
EP (1) EP0125505A2 (fr)
JP (1) JPS59223385A (fr)
DE (1) DE3317792A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241295A2 (fr) * 2001-03-14 2002-09-18 The Goodyear Tire & Rubber Company Câble hybride
EP1964952A1 (fr) 2007-02-28 2008-09-03 Filtes International S.r.l. Fil pour tissus techniques et son procédé de fabrication
CN112323525A (zh) * 2020-11-16 2021-02-05 清华大学 复合材料缠绕增强钢索及其制作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111492106B (zh) * 2017-12-19 2022-03-29 米其林集团总公司 具有极低、低和中等的模量的双层多线股帘线

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE654920A (fr) * 1964-10-28 1965-02-15
GB1311914A (en) * 1970-09-05 1973-03-28 Kobe Steel Ltd Steel cord
DE2224342A1 (en) * 1971-05-18 1972-11-30 Pirelli Steel cord in tyres
ZA743459B (en) * 1973-06-09 1975-10-29 Dunlop Ltd Bead coils
IT1059752B (it) * 1975-05-12 1982-06-21 Akzo Nv Cavo di rinforzo per a ticoli elastomerici e relativo metodo ed apparecchio di fabbricazione
GB1582647A (en) * 1977-07-07 1981-01-14 Bekaert Sa Nv Metal cord
DE2941541A1 (de) * 1979-10-13 1981-04-23 Continental Gummi-Werke Ag, 3000 Hannover Drahtseil als verstaerkungselement fuer gummi- oder kunststoffartikel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241295A2 (fr) * 2001-03-14 2002-09-18 The Goodyear Tire & Rubber Company Câble hybride
EP1241295A3 (fr) * 2001-03-14 2004-06-09 The Goodyear Tire & Rubber Company Câble hybride
EP1964952A1 (fr) 2007-02-28 2008-09-03 Filtes International S.r.l. Fil pour tissus techniques et son procédé de fabrication
CN112323525A (zh) * 2020-11-16 2021-02-05 清华大学 复合材料缠绕增强钢索及其制作方法

Also Published As

Publication number Publication date
JPS59223385A (ja) 1984-12-15
DE3317792A1 (de) 1984-11-29

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19851024

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WEIDENHAUPT, WOLFGANG, DR.