JPS5777204A - Pneumatic radial tire - Google Patents

Pneumatic radial tire

Info

Publication number
JPS5777204A
JPS5777204A JP55151447A JP15144780A JPS5777204A JP S5777204 A JPS5777204 A JP S5777204A JP 55151447 A JP55151447 A JP 55151447A JP 15144780 A JP15144780 A JP 15144780A JP S5777204 A JPS5777204 A JP S5777204A
Authority
JP
Japan
Prior art keywords
rubber
belt portion
specific
tread
less
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.)
Granted
Application number
JP55151447A
Other languages
Japanese (ja)
Other versions
JPS6245081B2 (en
Inventor
Tadanobu Nanun
Yukio Tozawa
Tomohiko Kogure
Hiroshi Hirakawa
Tetsuya Mizoguchi
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co 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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP55151447A priority Critical patent/JPS5777204A/en
Publication of JPS5777204A publication Critical patent/JPS5777204A/en
Publication of JPS6245081B2 publication Critical patent/JPS6245081B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Landscapes

  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To reduce a fuel cost as well as improve a braking performance and abrasion resistance on a wet road surface, by combining suitably a specific tread rubber material, a specific tread design and a specific belt portion structure.
CONSTITUTION: A treat portion rubber 13 is composed of a mixture blended with 5W30wt% polyisobutylene-isoprene rubber having 1W2wt% chlorine and/or bromine, 40W95wt% natural rubber and/or polyisoprene rubber and less than 50wt% polybutadiene rubber. A drainageway of a tread portion 1 is formed in the area ratio of 20W30% against a whole ground-contacting area. Further, on a belt portion 4, a cord having more than 2,500kg/mm2 Yound's modulus of a single cord is disposed at an angle of 15W25 degree against a circumferential direction of a tire, while a circumferential directional tensile rigidity of the belt portion 4 is made to be less than two hundred times to a radial directional tensile rigitidy.
COPYRIGHT: (C)1982,JPO&Japio
JP55151447A 1980-10-30 1980-10-30 Pneumatic radial tire Granted JPS5777204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151447A JPS5777204A (en) 1980-10-30 1980-10-30 Pneumatic radial tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151447A JPS5777204A (en) 1980-10-30 1980-10-30 Pneumatic radial tire

Publications (2)

Publication Number Publication Date
JPS5777204A true JPS5777204A (en) 1982-05-14
JPS6245081B2 JPS6245081B2 (en) 1987-09-24

Family

ID=15518791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151447A Granted JPS5777204A (en) 1980-10-30 1980-10-30 Pneumatic radial tire

Country Status (1)

Country Link
JP (1) JPS5777204A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270501A (en) * 1988-09-06 1990-03-09 Sumitomo Rubber Ind Ltd High speed radial tire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270501A (en) * 1988-09-06 1990-03-09 Sumitomo Rubber Ind Ltd High speed radial tire

Also Published As

Publication number Publication date
JPS6245081B2 (en) 1987-09-24

Similar Documents

Publication Publication Date Title
JPS5699805A (en) Pneumatic tyre with tread consisting of at least two kinds of rubber
KR850005340A (en) High performance tires
JPS6467404A (en) Radial tire
JPS52101503A (en) Pneumatic tire with improved tread
GB930265A (en) Improvements in and relating to pneumatic tyres
JPS5590538A (en) Tread composition for low-turning resistance tire
KR950005893A (en) Tires with silica reinforcement tread
JPS56131406A (en) Pneumatic tire for automobile
JPS5777203A (en) Pneumatic radial tire
JPS56146405A (en) Pneumatic tire
JPS57114704A (en) Pneumatic tire
JPS55136608A (en) Tire for vehicle moving on unlevelled ground
JPS5438003A (en) Pneumatic radial tire with superior high speed properties
JPS56103232A (en) Low rolling tread composition giving tire with improved wet grip performance
GB409482A (en) Improvements in treads for pneumatic tyres
FR2453876A1 (en) RUBBER MIXTURES FOR TREADS WITH LOW ROLLING RESISTANCE
JPS5679005A (en) Pneumatic radial tire for automobile
KR840008131A (en) Radial Tires for Motorcycles
EP0118386A3 (en) Pneumatic tire with belt reinforcement
JPS5682607A (en) Pneumatic radial tyre being excellent in durability at high speed
JPS57182502A (en) Pneumatic tire superior in durability of bead
JPS5777204A (en) Pneumatic radial tire
JPS5380602A (en) Pneumatic tire with superior irregular wear resistance
GB1415953A (en) Rubber articles reinforced with high modulus fibre cords pneumatic tyres reinforced with such fibre cords and a method for producing the same
JPS5579704A (en) Radial tire for automobile