TIRE BUILDING DRUM FOR THE MANUFACTURE OF TIRES

摘要

The building drum includes a support (20), a central shaft (30) and an outer circumferential surface coaxial with the axis of rotation of the drum. The building drum also has a principal cylindrical surface (100) axially bounded by a shoulder (101) extended by a lateral protuberance (102) for receiving the products which have to be assembled. Several segments together define the principal cylindrical surface, and those segments are being divided into first and second groups of adjacent segments (103a, 103b) mounted so as to move between a first position in which they are circumferentially juxtaposed and a second position in which the adjacent segments are radially offset. Several adjacent elbow levers (140) form the shoulder (101) and the protuberance (102) in the expanded position of the drum and each elbow lever (140) is mounted with articulation on the segment (103a, 103b) and on the support (20).

主权项

1. A building drum (10) for building a tire, comprising;
a support (20), a central shaft (30) and an outer circumferential surface coaxial with the axis of rotation of the drum and comprising a principal cylindrical surface (100) axially delimited on both sides by a shoulder (101) extended by a lateral protuberance (102) for receiving the products to be assembled, several segments together defining the principal cylindrical surface, said segments being divided into first and second groups of adjacent segments (103a, 103b) mounted to move between a first position in which they are circumferentially juxtaposed and a second position in which adjacent segments are radially offset, and wherein several adjacent elbow levers (140) form the shoulder (101) and the protuberance (102) in the expanded position of the drum and wherein each elbow lever (140) is mounted with articulation on the segment (103a, 103b) and on the support (20).