Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP3240118
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve lateral grip performance and handling performance of a tire at turning time of a vehicle by making a tread contour shape asymmetric, and determining a tread contour shape on the shoulder drop side of larger one from the largest radius point of a tire by plural radiuses of curvature.
SOLUTION: A tread part 2 has a tread contour shape terminating in inside and outside shoulder areas 5 and 5. In an asymmetric pneumatic tire 1, in a normal condition where it is installed on a normal rim and normal internal pressure is filled, a tread contour shape is made asymmetric to the center line CL of a tire cross section. Curvatures of tread contour shapes on both sides of the largest radius point M are made different from each other. A tread contour shape on the inside from the largest radius point M of a tire has a single radius R1 of curvature, and a tread contour shape on the outside from the largest radius point M is determined by three radiuses R2, R3, and R4 of curvature.
Inventors:
Francisco Secondary
Application Number:
JP17936296A
Publication Date:
December 17, 2001
Filing Date:
July 09, 1996
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C3/06; B60C11/00; B60C11/01; B60C11/03; (IPC1-7): B60C11/00
Domestic Patent References:
| JP664408A | ||||
| JP4110201A | ||||
| JP4271902A |
Attorney, Agent or Firm:
Tadashi Naemura