Patent · US Expired

Manufacture of vehicle tires

US4738738A · kind A · utility

15Cited by
12References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 15, 1986
Grant dateApr 19, 1988
Priority date
Expiry dateApr 15, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29D30/08
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method and apparatus for building a tire comprising fitting a patterned cavity of a tread mould with unvulcanized tread composition, shaping the radially inner surface of the tread to a first profile to accommodate a tread reinforcement breaker, consolidating the assembly and shaping its radially inner surface to a second profile, fitting a tire carcass into the second profile, completing the tire assembly, vulcanizing the assembly in the tread mould and removing it from the mould. The method includes various means for fitting the components for consolidating them and for forming the required profiles for subsequent components.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.