Title:
PNEUMATIC RADIAL TIRE FOR MOTORCYCLE
Document Type and Number:
WIPO Patent Application WO/2006/098112
Kind Code:
A1
Abstract:
A pneumatic radial tire for a motorcycle capable of increasing stability in turning by making compatible grounding performance with lateral rigidity at a high level. A mono-spiral belt (MSB) (3) comprises steel cords of 5.9 Pa or higher in tensile rupture strength. The value Tc of the driven number of cords in the MSB (for each 25 mm in width) at the equator of the tire and the value Ts thereof at the shoulder parts thereof meet the requirements of 17 ≤ Tc ≤ 24 and 0.6 ≤ Ts/Tc ≤ 0.9. The disposed width BW of the cords in the MSB meets the requirement of 0.6 ≤ BW/TW ≤ 1.0. At least one textile reinforced layer having a tensile rupture strength of 5.9 Pa or higher is disposed at both ends of the MSB overlappingly with the MSB. The overlapped amount of the MSB with the textile reinforced layer is 4 to 10 times the diameter D of the steel cords in the MSB.
Inventors:
NAKAGAWA HIDEMITSU (JP)
Application Number:
PCT/JP2006/302767
Publication Date:
September 21, 2006
Filing Date:
February 16, 2006
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
NAKAGAWA HIDEMITSU (JP)
NAKAGAWA HIDEMITSU (JP)
International Classes:
B60C9/18; B60C9/08; B60C9/20; B60C9/22; B60C13/00; B60C15/06
Domestic Patent References:
| WO2003095242A1 | 2003-11-20 |
Foreign References:
| JPH05246210A | 1993-09-24 | |||
| JPH09175123A | 1997-07-08 | |||
| JP2002019413A | 2002-01-23 | |||
| JP2001334812A | 2001-12-04 |
Other References:
See also references of EP 1864828A4
None
None
Attorney, Agent or Firm:
Honda, Ichiro (Kanda Chuo Building 2F 5-7, Nishikanda 2-chom, Chiyoda-ku Tokyo 65, JP)
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