JPS55152611A - Steel belt radial tire for heavy vehicle - Google Patents

Steel belt radial tire for heavy vehicle

Info

Publication number
JPS55152611A
JPS55152611A JP5862379A JP5862379A JPS55152611A JP S55152611 A JPS55152611 A JP S55152611A JP 5862379 A JP5862379 A JP 5862379A JP 5862379 A JP5862379 A JP 5862379A JP S55152611 A JPS55152611 A JP S55152611A
Authority
JP
Japan
Prior art keywords
belt
tire
polymer
circumferential line
layers
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.)
Pending
Application number
JP5862379A
Other languages
Japanese (ja)
Inventor
Sota Nakajima
Masahiko Kamiya
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP5862379A priority Critical patent/JPS55152611A/en
Priority to DE3018585A priority patent/DE3018585C2/en
Publication of JPS55152611A publication Critical patent/JPS55152611A/en
Pending legal-status Critical Current

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
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/1821—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers comprising discrete fibres or filaments
    • 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
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only

Landscapes

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

Abstract

PURPOSE:To reduce the weight of a tire of save fuel costs of a car by arranging a wedge-shaped buffer layer of a predetermined structure and of a predetermined composition under a belt or between the belt and a carcass at each end of the belt which consists of two strain layers disposed at a specific angle relative to a circumferential line of the tire and a breaker layer. CONSTITUTION:A belt 2 consists of two strain layers 2a, 2b having cords thereof intersecting a circumferential line of the tire at an angle of 30 deg. or less and intersecting each other with the circumferential line put between them, and a breaker layer 2c interposed between the strain layers 2a, 2b and having cords arranged at an angle of 30 deg. or less relative to the circumference of the tire. A pair of wedge-shaped buffer layers 3 are disposed under the belt 2, that is, between the belt 2 and a carcass 1 at opposite sides of the belt 2. The buffer layer 3 is made of a rubber composition which contains as a principal component a polymer of cis-1,4- and syn-1,2-polybutadienes or a blended rubber containing 10wt% or more of the polymer. The polymer contains 6-20wt% of a microcrystalline syn-1,2-structure, and 40wt% or more thereof is crystalline. The polymer is further in short filaments having the average diameter of 0.05-1mum and the average length of 0.8-10mum. The constitution thus reduces the weight of a tire and thereby saves fuels costs of a car.
JP5862379A 1979-05-15 1979-05-15 Steel belt radial tire for heavy vehicle Pending JPS55152611A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5862379A JPS55152611A (en) 1979-05-15 1979-05-15 Steel belt radial tire for heavy vehicle
DE3018585A DE3018585C2 (en) 1979-05-15 1980-05-14 Steel belt radial tires for heavy vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5862379A JPS55152611A (en) 1979-05-15 1979-05-15 Steel belt radial tire for heavy vehicle

Publications (1)

Publication Number Publication Date
JPS55152611A true JPS55152611A (en) 1980-11-28

Family

ID=13089692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5862379A Pending JPS55152611A (en) 1979-05-15 1979-05-15 Steel belt radial tire for heavy vehicle

Country Status (2)

Country Link
JP (1) JPS55152611A (en)
DE (1) DE3018585C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126204A (en) * 1982-01-21 1983-07-27 Sumitomo Rubber Ind Ltd Radial tyre for heavy car
JPS61142608U (en) * 1985-02-26 1986-09-03
WO2002083786A1 (en) * 2001-04-11 2002-10-24 Cheong Seok Hong Shape memory rubber composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59199304A (en) * 1983-04-27 1984-11-12 Bridgestone Corp Radial tire improved durability in running on bad road

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789075A (en) * 1971-09-29 1973-01-15 Pirelli Pneumatic tyre - has annular reinforcement of rubber and particulate mixture in shoulder regions
DE2313586A1 (en) * 1973-03-19 1974-09-26 Uniroyal Ag VEHICLE AIR TIRES, IN PARTICULAR FOR TRUCKS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126204A (en) * 1982-01-21 1983-07-27 Sumitomo Rubber Ind Ltd Radial tyre for heavy car
JPS6358121B2 (en) * 1982-01-21 1988-11-15 Sumitomo Rubber Ind
JPS61142608U (en) * 1985-02-26 1986-09-03
WO2002083786A1 (en) * 2001-04-11 2002-10-24 Cheong Seok Hong Shape memory rubber composition

Also Published As

Publication number Publication date
DE3018585C2 (en) 1982-07-01
DE3018585A1 (en) 1980-12-04

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