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Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JPH05162513
Kind Code:
A
Abstract:

PURPOSE: To improve the operability, the responsiveness to steering, and the road surface gripping force at the time of turn by setting a ratio of a height of a bead core in the tire radial direction against the maximum width of the bead core at 1.7-2.5 times, and forming an outline of the inner peripheral position ;outer peripheral position of the radial direction into a nearly square and a nearly triangle.

CONSTITUTION: A part 11a of a bead core 11, which is surrounded by a carcass ply 1, positioned inside of the radial direction and a part 11b thereof positioned outer peripheral side are respectively formed into a nearly square and a nearly triangle. A ratio of height (ho) of a bead core 11 in the tire radial direction to the maximum width Wo of the bead core 11 is set at 1.7-2.5 times. Consequently, the reinforcing effect and the rigidity of a bead part 4 are improved, and the operability and the responsiveness to steering are improved to improve the road surface gripping force at the time of turn.


Inventors:
KAWABATA MISAO
HAYASHI KAZUO
Application Number:
JP1991000327648
Publication Date:
June 29, 1993
Filing Date:
December 11, 1991
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B60C15/04; (IPC1-7): B60C15/04
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)



 
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