JPS5442706A - Radial tyre suited for use in truck and bus - Google Patents

Radial tyre suited for use in truck and bus

Info

Publication number
JPS5442706A
JPS5442706A JP10815077A JP10815077A JPS5442706A JP S5442706 A JPS5442706 A JP S5442706A JP 10815077 A JP10815077 A JP 10815077A JP 10815077 A JP10815077 A JP 10815077A JP S5442706 A JPS5442706 A JP S5442706A
Authority
JP
Japan
Prior art keywords
tyre
curvature
carcass ply
radius
caused
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
JP10815077A
Other languages
Japanese (ja)
Inventor
Junichi Ohashi
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.)
Toyo Tire Corp
Original Assignee
Toyo Tire and 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 Toyo Tire and Rubber Co Ltd filed Critical Toyo Tire and Rubber Co Ltd
Priority to JP10815077A priority Critical patent/JPS5442706A/en
Publication of JPS5442706A publication Critical patent/JPS5442706A/en
Pending legal-status Critical Current

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  • Tires In General (AREA)

Abstract

PURPOSE: To improve durability of radial tyre suited for use in truck and bus, by minimizing the radius of curvature the carcass ply located upwardly of an divisional line passing the center of curvature of rim flange of the tyre and making an angle of 55 degrees to the axis of tyre, and thereby reducing the local stress caused at discontinuous portion near the bead portion.
CONSTITUTION: In the region located on the rim side of an divisional line DL passing through the center O of curvature of rim flange 8F and making an angle of 55 degrees to the axis of tyre, there is caused almost no movement if turned-back portion 4 of carcass ply is subjected to repeated deformation, so that it is required to minimize the amplitude of repeated distortion upwards of the line DL. In view of the above, if radius of curvature of the carcass ply located upwardly of the divisional line DL is made as small as possible and position of the maximum width point W1 at the time when air is not filled in the tyre is lowered, radius R3 of curvature of carcass ply 2 is increased when loaded is acted and thus there is not caused so much change in tyre shape as compared with that at the time when air is not filled in the tyre, so that shearing distortion between carcass ply 2 and said portion 4 can be reduced
COPYRIGHT: (C)1979,JPO&Japio
JP10815077A 1977-09-07 1977-09-07 Radial tyre suited for use in truck and bus Pending JPS5442706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10815077A JPS5442706A (en) 1977-09-07 1977-09-07 Radial tyre suited for use in truck and bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10815077A JPS5442706A (en) 1977-09-07 1977-09-07 Radial tyre suited for use in truck and bus

Publications (1)

Publication Number Publication Date
JPS5442706A true JPS5442706A (en) 1979-04-04

Family

ID=14477203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10815077A Pending JPS5442706A (en) 1977-09-07 1977-09-07 Radial tyre suited for use in truck and bus

Country Status (1)

Country Link
JP (1) JPS5442706A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191104A (en) * 1981-05-17 1982-11-24 Toyo Tire & Rubber Co Ltd Radial tire for truck and bus
JPS61200004A (en) * 1985-03-01 1986-09-04 Sumitomo Rubber Ind Ltd Radial tire having improved configuration
JPS62194904A (en) * 1986-02-20 1987-08-27 Bridgestone Corp Heavy duty pneumatic radial tire
JPS62283002A (en) * 1986-02-20 1987-12-08 Bridgestone Corp Pneumatic radial tire for heavy load
US5052457A (en) * 1988-07-21 1991-10-01 Bridgestone Corporation Pneumatic radial tire with high durable bead portions
JP2006117187A (en) * 2004-10-25 2006-05-11 Bridgestone Corp Pneumatic radial tire for heavy load
JP2008273431A (en) * 2007-05-01 2008-11-13 Yokohama Rubber Co Ltd:The Pneumatic tire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161901A (en) * 1974-11-25 1976-05-28 Bridgestone Tire Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161901A (en) * 1974-11-25 1976-05-28 Bridgestone Tire Co Ltd

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191104A (en) * 1981-05-17 1982-11-24 Toyo Tire & Rubber Co Ltd Radial tire for truck and bus
JPH0356921B2 (en) * 1981-05-17 1991-08-29
JPS61200004A (en) * 1985-03-01 1986-09-04 Sumitomo Rubber Ind Ltd Radial tire having improved configuration
JPS62194904A (en) * 1986-02-20 1987-08-27 Bridgestone Corp Heavy duty pneumatic radial tire
JPS62283002A (en) * 1986-02-20 1987-12-08 Bridgestone Corp Pneumatic radial tire for heavy load
US5052457A (en) * 1988-07-21 1991-10-01 Bridgestone Corporation Pneumatic radial tire with high durable bead portions
JP2006117187A (en) * 2004-10-25 2006-05-11 Bridgestone Corp Pneumatic radial tire for heavy load
JP4548776B2 (en) * 2004-10-25 2010-09-22 株式会社ブリヂストン Heavy duty pneumatic radial tire
JP2008273431A (en) * 2007-05-01 2008-11-13 Yokohama Rubber Co Ltd:The Pneumatic tire

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