JPS56146405A - Pneumatic tire - Google Patents

Pneumatic tire

Info

Publication number
JPS56146405A
JPS56146405A JP4883080A JP4883080A JPS56146405A JP S56146405 A JPS56146405 A JP S56146405A JP 4883080 A JP4883080 A JP 4883080A JP 4883080 A JP4883080 A JP 4883080A JP S56146405 A JPS56146405 A JP S56146405A
Authority
JP
Japan
Prior art keywords
rolling resistance
mobility
low rolling
rubber layer
relatively
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
JP4883080A
Other languages
Japanese (ja)
Other versions
JPS6120442B2 (en
Inventor
Yasuo Morikawa
Kazuyuki Kabe
Akinori Tokieda
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 JP4883080A priority Critical patent/JPS56146405A/en
Publication of JPS56146405A publication Critical patent/JPS56146405A/en
Publication of JPS6120442B2 publication Critical patent/JPS6120442B2/ja
Granted 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
    • B60C9/26—Folded plies
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B60C11/0058—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different cap rubber layers in the axial direction
    • 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 

Abstract

PURPOSE: To improve mobility on a damp road and low rolling resistance by a construction wherein a cap tread consists of a central section with high mobility on a damp road and shoulder sections with high low rolling resistance.
CONSTITUTION: A cap tread T is constructed of rubber layers A in shoulder sections corresponding to the folded sections 6a of a belt-reinforcing layer 6 and a rubber layer B corresponding to a central section. The rubber layer A is formed with the one offering low rolling resistance, the relatively high dynamic modulus of elasticity and a relatively small dynamic loss. In addition, the rubber layer B is formed with the one offering good mobility on a damp road, the relatively low dynamic modulus of elasticity and a relatively large dynamic loss. With this construction, it is possible to improve low rolling resistance and mobility on a damp road.
COPYRIGHT: (C)1981,JPO&Japio
JP4883080A 1980-04-14 1980-04-14 Pneumatic tire Granted JPS56146405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4883080A JPS56146405A (en) 1980-04-14 1980-04-14 Pneumatic tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4883080A JPS56146405A (en) 1980-04-14 1980-04-14 Pneumatic tire

Publications (2)

Publication Number Publication Date
JPS56146405A true JPS56146405A (en) 1981-11-13
JPS6120442B2 JPS6120442B2 (en) 1986-05-22

Family

ID=12814144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4883080A Granted JPS56146405A (en) 1980-04-14 1980-04-14 Pneumatic tire

Country Status (1)

Country Link
JP (1) JPS56146405A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082409A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Radial tire
JPS6082406A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Pneumatic radial tire
JPS6082407A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Radial tire for heavy car
JPS6135006U (en) * 1984-08-02 1986-03-04 株式会社ブリヂストン Tire tread rubber structure
JPS61111804U (en) * 1984-12-27 1986-07-15
JPS61257305A (en) * 1985-05-10 1986-11-14 Sumitomo Rubber Ind Ltd Radial-ply tire
JPS6259104A (en) * 1985-09-09 1987-03-14 Bridgestone Corp Pneumatic tire
JPS6259105A (en) * 1985-09-09 1987-03-14 Bridgestone Corp Pneumatic tire
US4739811A (en) * 1982-10-20 1988-04-26 Semperit Reifen Aktiengesellschaft Pneumatic vehicle tire with radial ply carcass and tread member composed of a base layer situated closer to the tire axis and a cap layer arranged on top thereof
US5046542A (en) * 1987-08-20 1991-09-10 Bridgestone Corporation Radial tires for construction vehicles including tread cap and divided tread base
US5176765A (en) * 1988-04-13 1993-01-05 Bridgestone Corporation Pneumatic tire having outer tread layer of foam rubber
EP1184205A2 (en) * 2000-08-28 2002-03-06 Dunlop GmbH Pneumatic tire
US6719025B2 (en) * 1998-12-21 2004-04-13 Pirelli Pneumatici S.P.A. Dual composition tread band for tire
WO2009020066A1 (en) * 2007-08-03 2009-02-12 Sumitomo Rubber Industries, Ltd. Pneumatic tire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342030U (en) * 1986-09-05 1988-03-19

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739811A (en) * 1982-10-20 1988-04-26 Semperit Reifen Aktiengesellschaft Pneumatic vehicle tire with radial ply carcass and tread member composed of a base layer situated closer to the tire axis and a cap layer arranged on top thereof
JPS6082406A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Pneumatic radial tire
JPS6082407A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Radial tire for heavy car
JPS6082409A (en) * 1983-10-14 1985-05-10 Bridgestone Corp Radial tire
JPS6135006U (en) * 1984-08-02 1986-03-04 株式会社ブリヂストン Tire tread rubber structure
JPS61111804U (en) * 1984-12-27 1986-07-15
JPS61257305A (en) * 1985-05-10 1986-11-14 Sumitomo Rubber Ind Ltd Radial-ply tire
JPS6259104A (en) * 1985-09-09 1987-03-14 Bridgestone Corp Pneumatic tire
JPS6259105A (en) * 1985-09-09 1987-03-14 Bridgestone Corp Pneumatic tire
US5046542A (en) * 1987-08-20 1991-09-10 Bridgestone Corporation Radial tires for construction vehicles including tread cap and divided tread base
US5176765A (en) * 1988-04-13 1993-01-05 Bridgestone Corporation Pneumatic tire having outer tread layer of foam rubber
US6719025B2 (en) * 1998-12-21 2004-04-13 Pirelli Pneumatici S.P.A. Dual composition tread band for tire
EP1184205A2 (en) * 2000-08-28 2002-03-06 Dunlop GmbH Pneumatic tire
EP1184205A3 (en) * 2000-08-28 2002-05-29 Dunlop GmbH Pneumatic tire
WO2009020066A1 (en) * 2007-08-03 2009-02-12 Sumitomo Rubber Industries, Ltd. Pneumatic tire
JP2009035229A (en) * 2007-08-03 2009-02-19 Sumitomo Rubber Ind Ltd Pneumatic tire

Also Published As

Publication number Publication date
JPS6120442B2 (en) 1986-05-22

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