TAMBOUR DE FORMATION ET PAIRE DE BAGUES LATÉRALES CORRESPONDANTE

摘要

The present application relates to a building drum; belong to the technical field of tire manufacturing. The building drum comprises a first mounting portion and a second mounting portion; a first side ring comprises a first annular portion, a first side of the first annular portion is connected to the first mounting portion, a second side of the first annular portion is provided with a plurality of first tooth-shaped portions along a circumference of the first annular portion; the structures of the first side ring and the second side ring are similar, the first tooth-shaped portions are cross-fitted with the second tooth-shaped portions. The present application also provides a pair of side rings, comprising a first side ring and a second side ring; the first side ring comprises a first annular portion, the first annular portion is provided with a plurality of first tooth-shaped portions along a circumference of the first annular portion; the second side ring comprises a second annular portion, the second annular portion is provided with a plurality of second tooth-shaped portions along a circumference of the second annular portion; the first tooth-shaped portions are cross-fitted with the second tooth-shaped portions. The building drum provided by the present application is easy to replace its components and makes the semi-finished joint uniform.