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Title:
空気入りラジアルタイヤ
Document Type and Number:
Japanese Patent JP3583537
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress the generation of a wandering phenomenon respectively at the unloaded time and loaded time so as to improve rectilinear stability. SOLUTION: The tread outline shape in the width direction cross section of a tire under the charge of specified internal pressure is partitioned by at least three kinds of circular arcs that are a first circular arc CR1 with the center on the axis of symmetry X-X of tire cross section, a second circular arc CR2 adjacent to the first circular arc, and a third circular arc CR3 continuous with the tire width direction outside of the second circular arc. The second and third circular arcs CR2 , CR3 are respectively disposed on the outside in the tire radial direction of the imaginary extended line (a) of the first circular arc CR1 , and the radius of curvature R2 of the second circular arc CR2 is made larger than the radius of curvature R3 of the third circular arc CR3 .

Inventors:
Hiroyuki Matsumoto
Application Number:
JP599396A
Publication Date:
November 04, 2004
Filing Date:
January 17, 1996
Export Citation:
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Assignee:
Bridgestone Corporation
International Classes:
B60C3/00; B60C11/00; (IPC1-7): B60C3/00; B60C11/00
Domestic Patent References:
JP4331606A
JP3121905A
Attorney, Agent or Firm:
Kosaku Sugimura
Yasunori Sato
Norita Tomita
Umemoto Masao