Pneumatic tire having a zigzag center main groove and shoulder oblique grooves

Abstract

Each shoulder land regionE defined by a shoulder circumferential main grooveE is provided with a circumferential narrow grooveand axially inner and outer shoulder oblique groovesandextending therefrom. The axially outer shoulder oblique groovesare inclined with respect to the tire axial direction to one direction. The axially inner shoulder oblique groovesare inclined with respect to the tire axial direction to one direction opposite to that of the axially outer shoulder oblique grooves. Crown oblique groovesare inclined with respect to the tire axial direction to one direction same as that of the axially outer shoulder oblique grooves. Imaginary extensionsK of the axially outer shoulder oblique groovesare not overlapped with openings Qof the axially inner shoulder oblique groovesat the circumferential narrow groove. Imaginary extensionsK of the axially inner shoulder oblique groovesare not overlapped with openings Qof the crown oblique groovesat the shoulder circumferential main grooveE, and are not overlapped with openings Qof the axially outer shoulder oblique groovesat the circumferential narrow groove. Imaginary extensionsK of the crown oblique groovesare not overlapped with openings Qof the axially inner shoulder oblique groovesat the shoulder circumferential main grooveE.