| 摘要 |
A pneumatic tire tread contains at least one central bar and grooves. The central bar has a longitudinal groove and dead hollows. Two circumferential grooves are located on each side thereof and divide the surface onto four rows of elements. The outer grooves are of larger width than inner ones. In the outer rows the transverse curvilinear grooves are made, which have the form of bent curves expanding toward the tire shoulder and divide thereof onto elements in the form of solid blocks in which depressions and cuts are located. The elements of inner rows are made in the form of parallelograms, which two sides are straight and two are closed by arcs. Each element has two cuts and the hollow dividing the element onto two parts, between which there are connecting bridges. |
