Tire tread with sipes and a method for the manufacture of a tire tread with sipes

摘要

A tire with certain tread features and a method for manufacturing the tread for such a tire are provided. More particularly, a tire and method for manufacturing a tire having a tread portion with sipes that can be of minimal thickness and varying geometries, densities, and profiles may be provided. The sipes can also be hidden until after a period of tread wear has occurred.

主权项

1. A method of manufacturing a tread portion of a tire, the steps comprising:
placing a layer of uncured tire rubber onto a surface; cutting the layer of uncured tire rubber to create at least one incision in a predetermined shape in the layer of uncured tire rubber; curing a portion of the layer of uncured tire rubber adjacent to the at least one incision and without curing all of the layer of uncured tire rubber; repeating said steps of placing a layer, cutting the layer, and curing a portion of the layer using one or more additional layers of uncured tire rubber until the tread portion having a predetermined thickness is formed and at least one sipe is created by adjoining incisions in adjacent layers of the uncured tire rubber such that the incisions are connected to each other; and curing the remainder of the layers of uncured tire rubber without eliminating the incisions in the layers of uncured tire rubber.