Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2003/006267
Kind Code:
A1
Abstract:
A pneumatic tire comprising a radial carcass (5) consisting of at least one carcass ply constituted by a main body (3a) and a turnup (3b), a reinforcing member (7) consisting of at least two reinforcing layers, wherein of the reinforcing layers (6a, 6b, 6c) constituting the reinforcing member (7), at least two reinforcing layers (6a, 6b) are a cross reinforcing layer (21) that covers at least the turnup of the radial carcass (5) and in which their cords cross each other, and the outer ends (14a, 14b) of the reinforcing layers (6a, 6b) constituting the cross reinforcing layer (21) that are positioned on the tire widthwise outer sides of the turnup (3b) of the radial carcass (5) are disposed more radially outwardly of the tire than the outer end (13) of the turnup (3b) of the radial carcass (5), the cords constituting the reinforcing layers (6a, 6b, 6c) being cords having predetermined physical properties, and the cross angle (&agr ), including a tire peripheral direction (15), of the cords of the adjoining reinforcing layers (6a, 6b) is greater than 50° and less than 130°.
Inventors:
WAKI YOSHIYUKI (JP)
Application Number:
PCT/JP2002/006962
Publication Date:
January 23, 2003
Filing Date:
July 09, 2002
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
WAKI YOSHIYUKI (JP)
WAKI YOSHIYUKI (JP)
International Classes:
B60C15/06; (IPC1-7): B60C15/06; B60C15/00
Foreign References:
| JPS61105202A | 1986-05-23 | |||
| JPS6050006A | 1985-03-19 | |||
| JP2002274127A | 2002-09-25 | |||
| JPS6157405A | 1986-03-24 | |||
| JPS6018409A | 1985-01-30 |
Other References:
See also references of EP 1405736A4
Attorney, Agent or Firm:
Sugimura, Kosaku (2-4 Kasumigaseki 3-chome Chiyoda-ku, Tokyo, JP)
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