Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP3144922
Kind Code:
B2
Abstract:
PURPOSE: To reduce the flexure of a belt layer by hardly reducing the sectional area of an annular recess in filling the internal pressure in a tire formed in the crown part with the annular recess having a wide width.
CONSTITUTION: The strength, i.e., the tension strength per unit denier of cords located near the inflection points j, K of an annular recess 35 among the cords in a reinforcing layer 43 is improved, so that only the cords are hardly extended in filling the internal pressure to improve the circumferential rigidity and restrain the bulging of the annular recess 35 to a practical value. Also, since the reinforcing layer 43 covers a belt layer 29 over the whole width, an amount of the belt layer 29 thrusted in is uniformed as a whole to reduce the flexure.
Inventors:
Hirokaoru Fukushima
Hiroshi Imai
Hiroshi Imai
Application Number:
JP31946892A
Publication Date:
March 12, 2001
Filing Date:
November 04, 1992
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C3/00; B60C9/22; B60C11/00; (IPC1-7): B60C11/00; B60C9/22
Domestic Patent References:
JP4243601A | ||||
JP592706A | ||||
JP632111A |
Attorney, Agent or Firm:
Toshio Tada