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IE36442L - Tyres, beads - Google Patents

Tyres, beads

Info

Publication number
IE36442L
IE36442L IE720631A IE63172A IE36442L IE 36442 L IE36442 L IE 36442L IE 720631 A IE720631 A IE 720631A IE 63172 A IE63172 A IE 63172A IE 36442 L IE36442 L IE 36442L
Authority
IE
Ireland
Prior art keywords
bead
rubber
core
covering
tyre
Prior art date
Application number
IE720631A
Other versions
IE36442B1 (en
Original Assignee
Dunlop Ltd
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 Dunlop Ltd filed Critical Dunlop Ltd
Publication of IE36442L publication Critical patent/IE36442L/en
Publication of IE36442B1 publication Critical patent/IE36442B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • 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)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • 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)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B29D30/50—Covering, e.g. by winding, the separate bead-rings or bead-cores with textile material, e.g. with flipper strips
    • 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)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B29D2030/482—Applying fillers or apexes to bead cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • B60C2015/044—Bead cores characterised by a wrapping layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1375367 Making pneumatic tyres DUNLOP Ltd 4 May 1972 [15 May 1971] 15170/71 Heading B7C A bead for use in a pneumatic tyre and adapted to have a ply reinforced with steel cords turned round it is formed by providing a core 1 of coiled or strip metal, covering the core with unvulcanized rubber 2 having a plasticity of at least 80 lb. ft. at 140‹ C., cold pressing the bead to a circular shape, applying a zinc stearate in methylated spirits lubricant 4 thereto and wrapping the bead with textile fabric 5. After the tyre has been built and vulcanized the hardness of the rubber covering should be in the range 85 BS to 100 BS. The rubber is provided with a filler of low particle size silica. [GB1375367A]
IE631/72A 1971-05-15 1972-05-11 Method for the manufacture of pneumatic tyres IE36442B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1517071A GB1375367A (en) 1971-05-15 1971-05-15

Publications (2)

Publication Number Publication Date
IE36442L true IE36442L (en) 1972-11-15
IE36442B1 IE36442B1 (en) 1976-11-10

Family

ID=10054271

Family Applications (1)

Application Number Title Priority Date Filing Date
IE631/72A IE36442B1 (en) 1971-05-15 1972-05-11 Method for the manufacture of pneumatic tyres

Country Status (9)

Country Link
JP (1) JPS567883B1 (en)
AU (1) AU464247B2 (en)
BR (1) BR7203072D0 (en)
ES (1) ES402723A1 (en)
FR (1) FR2137810B1 (en)
GB (1) GB1375367A (en)
IE (1) IE36442B1 (en)
IT (1) IT960625B (en)
ZA (1) ZA723289B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1124863B (en) * 1979-10-31 1986-05-14 Pirelli TIRES HEEL IMPROVEMENT
CA1175325A (en) * 1981-08-28 1984-10-02 Ronald J. Forsyth Insulated bead for a radial steel ply tire
DE3602874A1 (en) * 1986-01-31 1987-08-06 Continental Gummi Werke Ag VEHICLE TIRES
DE3820135A1 (en) * 1988-06-14 1989-12-21 Continental Ag VEHICLE AIR TIRE WITH CRIBLE BULBS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR812539A (en) * 1936-10-26 1937-05-12 Michelin & Cie Improvement to tire beads
FR1413465A (en) * 1963-11-01 1965-10-08 Nat Standard Company Ltd Improvements in materials for reinforcing rubber articles, in particular tires, and in elastomeric materials
FR1473142A (en) * 1966-01-17 1967-03-17 Dunlop Sa Improvements in the manufacture of pneumatic tires
GB1243187A (en) * 1967-12-01 1971-08-18 Dunlop Holdings Ltd Improvements in or relating to the manufacture of pneumatic tyres
FR2220396B1 (en) * 1973-03-07 1977-07-08 Michelin & Cie

Also Published As

Publication number Publication date
GB1375367A (en) 1974-11-27
FR2137810B1 (en) 1974-08-30
ES402723A1 (en) 1975-04-01
ZA723289B (en) 1973-02-28
IT960625B (en) 1973-11-30
BR7203072D0 (en) 1973-06-14
JPS567883B1 (en) 1981-02-20
IE36442B1 (en) 1976-11-10
FR2137810A1 (en) 1972-12-29
AU464247B2 (en) 1975-08-21
AU4205772A (en) 1973-11-15

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