JPS5647305A - Radial tire for passenger car - Google Patents

Radial tire for passenger car

Info

Publication number
JPS5647305A
JPS5647305A JP12345879A JP12345879A JPS5647305A JP S5647305 A JPS5647305 A JP S5647305A JP 12345879 A JP12345879 A JP 12345879A JP 12345879 A JP12345879 A JP 12345879A JP S5647305 A JPS5647305 A JP S5647305A
Authority
JP
Japan
Prior art keywords
tread rubber
rubber
tread
resistance
abrasion
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
JP12345879A
Other languages
Japanese (ja)
Inventor
Tadao Kono
Hiroshi Furukawa
Kenzo Yamashita
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries 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 Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP12345879A priority Critical patent/JPS5647305A/en
Publication of JPS5647305A publication Critical patent/JPS5647305A/en
Pending 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)
  • Tyre Moulding (AREA)

Abstract

PURPOSE: To reduce a rolling resistance without spoiling resistance to abrasion, properties of wet skid and the like by a method wherein a tread rubber is constituted with two layers of a cap tread rubber and a base tread rubber and each layer is provided with various characteristics respectively.
CONSTITUTION: A radial tire is constituted with a pair of bead wires 1, a carcass 2, a tread 5 arranged so as to be mounted between side walls 4 and a breaker 3. In this case, the tread 5 is consituted with two layers of a cap tread rubber A at a surface side of the tread and a base tread rubber B at a side of the breaker 3. Said cap tread rubber A is made of a rubber having a resistance to abrasion, properties of wet skid and characteristics directed to a driving stability while the base tread rubber B is made of a rubber capable of affording a remarkable low rolling resistance. According to this method, the rolling resistance may be reduced without spoiling the resistance to abrasion, the driving stability and the like.
COPYRIGHT: (C)1981,JPO&Japio
JP12345879A 1979-09-25 1979-09-25 Radial tire for passenger car Pending JPS5647305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12345879A JPS5647305A (en) 1979-09-25 1979-09-25 Radial tire for passenger car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12345879A JPS5647305A (en) 1979-09-25 1979-09-25 Radial tire for passenger car

Publications (1)

Publication Number Publication Date
JPS5647305A true JPS5647305A (en) 1981-04-30

Family

ID=14861114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12345879A Pending JPS5647305A (en) 1979-09-25 1979-09-25 Radial tire for passenger car

Country Status (1)

Country Link
JP (1) JPS5647305A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816906A (en) * 1981-07-24 1983-01-31 Bridgestone Corp High-pressure pneumatic radial tire for passenger car
JPS5830806A (en) * 1981-08-12 1983-02-23 Sumitomo Rubber Ind Ltd Radial tire
JPS63301106A (en) * 1987-06-02 1988-12-08 Bridgestone Corp Flat pneumatic radial tire
JP2018086962A (en) * 2016-11-29 2018-06-07 東洋ゴム工業株式会社 Pneumatic tire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438004A (en) * 1977-08-31 1979-03-22 Bridgestone Corp Pneumatic tire having at least two types of tread rubber layers
JPS5483202A (en) * 1977-12-14 1979-07-03 Bridgestone Corp Dielectric tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438004A (en) * 1977-08-31 1979-03-22 Bridgestone Corp Pneumatic tire having at least two types of tread rubber layers
JPS5483202A (en) * 1977-12-14 1979-07-03 Bridgestone Corp Dielectric tire

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816906A (en) * 1981-07-24 1983-01-31 Bridgestone Corp High-pressure pneumatic radial tire for passenger car
JPS5830806A (en) * 1981-08-12 1983-02-23 Sumitomo Rubber Ind Ltd Radial tire
JPS63301106A (en) * 1987-06-02 1988-12-08 Bridgestone Corp Flat pneumatic radial tire
JP2018086962A (en) * 2016-11-29 2018-06-07 東洋ゴム工業株式会社 Pneumatic tire

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