JPS641605A - Heavy loading radial tire - Google Patents
Heavy loading radial tireInfo
- Publication number
- JPS641605A JPS641605A JP62153482A JP15348287A JPS641605A JP S641605 A JPS641605 A JP S641605A JP 62153482 A JP62153482 A JP 62153482A JP 15348287 A JP15348287 A JP 15348287A JP S641605 A JPS641605 A JP S641605A
- Authority
- JP
- Japan
- Prior art keywords
- cord
- layer
- layers
- split
- durability
- 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
Links
Landscapes
- Tires In General (AREA)
Abstract
PURPOSE: To improve the durability of belt layers, by forming the 1st layer of belt layers provided in multiple to be in a given split construction having a given cord angle, providing its split portion with a given organic fibre cord layer, and placing the cords of a 2nd and a 3rd layers so as to be intersectingly arranged to each other.
CONSTITUTION: A 1st layer 4a nearest to the carcass layer 3, of belt layers 4 is formed in a split construction having a cord angle of 40W75deg., allowing it to be split at a crown center area T, and an organic fibre cord having the total strength of the min. 240kg/cm per unit width is placed on this split portion as an organic fibre cord layer 5 being placed at a cord angle of 0W10deg. Further, cord arrangement on the both sides of the 1st layer 4a is set to be symmetrical against a tire center. The cord angles of a 2nd and a 3rd layers 4b, 4c are arranged to be 10W30deg. and the both layers are placed so as to be intersected to each other. This constitution will improve the durability and the dimensional stability of the crown portion on a rough road, thus improve the durability of a belt.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-153482A JPH011605A (en) | 1987-06-22 | Radial tire for heavy loads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-153482A JPH011605A (en) | 1987-06-22 | Radial tire for heavy loads |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS641605A true JPS641605A (en) | 1989-01-06 |
JPH011605A JPH011605A (en) | 1989-01-06 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03128702A (en) * | 1989-07-24 | 1991-05-31 | Sumitomo Rubber Ind Ltd | Heavy duty tire |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03128702A (en) * | 1989-07-24 | 1991-05-31 | Sumitomo Rubber Ind Ltd | Heavy duty tire |
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