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Title:
PNEUMATIC TIRE FOR HEAVY LOAD
Document Type and Number:
Japanese Patent JPH06219109
Kind Code:
A
Abstract:

PURPOSE: To provide a pneumatic tire for a heavy load by which weight reduction and improvement of external flaw resistant performance in a sidewall part can be reconciled with each other.

CONSTITUTION: When a foaming rubber layer 32 is arranged in a cut preventive protector 30, gross weight of a tire can be reduced. Since the cut preventive protector 30 contains foaming rubber, it becomes flexible, and external flaw resistant performance is improved better than a cut preventive protector formed of ordinary unfoamed rubber. When the cut preventive protector 30 is flawed, development of a flaw is restrained by foams of the foaming rubber, so that flaw developing speed becomes slower than ordinary rubber. Since a foaming rubber layer 32 is arranged extendedly over the whole sidewall 28 and cushion rubber 22 and a tread base part 24A are formed of the foaming rubber, the gross weight of the tire can be reduced further.


Inventors:
TANIGUCHI MOTOAKI
Application Number:
JP1993000011842
Publication Date:
August 09, 1994
Filing Date:
January 27, 1993
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/00; B60C13/00; (IPC1-7): B60C13/00
Attorney, Agent or Firm:
中島 淳 (外2名)



 
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