JPS5488502A - Highly durable pneumatic tire - Google Patents
Highly durable pneumatic tireInfo
- Publication number
- JPS5488502A JPS5488502A JP15695077A JP15695077A JPS5488502A JP S5488502 A JPS5488502 A JP S5488502A JP 15695077 A JP15695077 A JP 15695077A JP 15695077 A JP15695077 A JP 15695077A JP S5488502 A JPS5488502 A JP S5488502A
- Authority
- JP
- Japan
- Prior art keywords
- ply
- pneumatic tire
- twisted
- cord
- bundle
- 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
Links
Abstract
PURPOSE: To improve the compressive resistance fatigue properties of a highly durable pneumatic tire by specifying the structure of a carcass body of the tire.
CONSTITUTION: The carcass body 2 of this pneumatic tire consists of a ply bundle 2a having four sheets of ply of organic fibrous cord twisted N times in a manner wound integrally from the inside to the outside of a bead core 1a, and a ply bundle 2b having two sheets of ply of cord of the same diameter as the ply bundle 2a twisted N' times (>N) in a manner folded integrally from the outside to the inside of a bead heel portion 1b and secured at the end thereof to a bead toe portion 1c along the lower surface of the core 1a. There is thus formed the body 2 of bias structure having a ply group of relatively less twisted cords in the vicinity of the inner layer and a ply group of relatively more twisted cords in the vicinity of the layer compositely laminated so that the twist of the outermost layer cord is more by 5 to 30% than that of the inner layer adjacent thereto so as to thereby carry out the primary object.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15695077A JPS5488502A (en) | 1977-12-26 | 1977-12-26 | Highly durable pneumatic tire |
CA318,293A CA1084398A (en) | 1977-12-26 | 1978-12-20 | Highly durable pneumatic tire |
AU42800/78A AU512906B2 (en) | 1977-12-26 | 1978-12-21 | Carcass with plies of different twist |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15695077A JPS5488502A (en) | 1977-12-26 | 1977-12-26 | Highly durable pneumatic tire |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5488502A true JPS5488502A (en) | 1979-07-13 |
JPS5716007B2 JPS5716007B2 (en) | 1982-04-02 |
Family
ID=15638871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15695077A Granted JPS5488502A (en) | 1977-12-26 | 1977-12-26 | Highly durable pneumatic tire |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5488502A (en) |
AU (1) | AU512906B2 (en) |
CA (1) | CA1084398A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59160084A (en) * | 1983-03-02 | 1984-09-10 | Nippon Denso Co Ltd | Rotary fluid pressurizing and sending device |
JPS6151509U (en) * | 1984-09-04 | 1986-04-07 | ||
JPS63254896A (en) * | 1987-04-10 | 1988-10-21 | Matsushita Electric Ind Co Ltd | Planar speaker |
-
1977
- 1977-12-26 JP JP15695077A patent/JPS5488502A/en active Granted
-
1978
- 1978-12-20 CA CA318,293A patent/CA1084398A/en not_active Expired
- 1978-12-21 AU AU42800/78A patent/AU512906B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU4280078A (en) | 1979-07-05 |
JPS5716007B2 (en) | 1982-04-02 |
AU512906B2 (en) | 1980-11-06 |
CA1084398A (en) | 1980-08-26 |
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